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Panel_LG_Display_LP156WH4-TLA1_3_[DS]


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                                                                                                                   LP156WH4
                                                                                                         Liquid Crystal Display
                                                       Product Specification




                                                   SPECIFICATION
                                                       FOR
                                                     APPROVAL


         (      ) Preliminary Specification
         (      ) Final Specification


                          Title                                          15.6" HD TFT LCD

                  Customer                    ACER                             SUPPLIER                LG Display Co., Ltd.
                                                                               *MODEL              LP156WH4
                   MODEL
                                                                                 Suffix            TLA1
                                                                         *When you obtain standard approval,
                                                                          please use the above model name without suffix



                    APPROVED BY              SIGNATURE                            APPROVED BY               SIGNATURE

                                                                               G. J. Han / S.Manager
                             /
                                                                                  REVIEWED BY
                                                                                B. T. Jang / Manager
                             /
                                                                                C. H. Lee / Manager

                             /                                                    PREPARED BY

                                                                                K. M. Lee / Engineer
                                                                                G. H. Lee / Engineer


             Please return 1 copy for your confirmation with                       Products Engineering Dept.
             your signature and comments.                                             LG Display Co., Ltd




               Ver. 1.0                                        Mar. 10, 2011                                            1 / 31




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                                                                                              LP156WH4
                                                                                    Liquid Crystal Display
                                                     Product Specification




                                                         Contents

                 No                                           ITEM                         Page
                          COVER                                                              1

                          CONTENTS                                                           2

                          RECORD OF REVISIONS                                                3

                 1        GENERAL DESCRIPTION                                                4

                 2        ABSOLUTE MAXIMUM RATINGS                                           5

                 3        ELECTRICAL SPECIFICATIONS

                  3-1     ELECTRICAL CHARACTREISTICS                                        6-7

                  3-2     INTERFACE CONNECTIONS                                              8

                  3-3     LVDS SIGNAL TIMING SPECIFICATION                                 9-10

                  3-3     SIGNAL TIMING SPECIFICATIONS                                      11

                  3-4     SIGNAL TIMING WAVEFORMS                                           11

                  3-5     COLOR INPUT DATA REFERNECE                                        12

                  3-6     POWER SEQUENCE                                                    13

                 4        OPTICAL SFECIFICATIONS                                           14-16

                 5        MECHANICAL CHARACTERISTICS                                       17-20

                      A   APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN                   21-23

                 6        RELIABLITY                                                        24

                 7        INTERNATIONAL STANDARDS

                  7-1     SAFETY                                                            25
                  7-2     EMC                                                               25
                  7-3     ENVIRONMENT                                                       25

                 8        PACKING

                  8-1     DESIGNATION OF LOT MARK                                           26

                  8-2     PACKING FORM                                                      26

                 9        PRECAUTIONS                                                      27-28

                     A    APPENDIX. Enhanced Extended Display Identification Data          29-31


           Ver. 1.0                                       Mar. 10, 2011                            2 / 31




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                                                                                                   LP156WH4
                                                                                         Liquid Crystal Display
                                                Product Specification



                                              RECORD OF REVISIONS

                                                                                                        EDID
         Revision No Revision Date    Page                                Description
                                                                                                         ver
             0.0      Sep. 06, 2010     -      First Draft (Preliminary Specification)                   0.0
             0.1      Dec. 28, 2010    14      Color Coordinates Update
                                       15      Gray scale Update
                                      29~31    EDID Update                                               1.0
             1.0      Mar. 10, 2011     -      Final Draft
                                       26      Update Designation of lot mark




           Ver. 1.0                                   Mar. 10, 2011                                     3 / 31




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                                                                                                                         LP156WH4
                                                                                                               Liquid Crystal Display
                                                                 Product Specification

         1. General Description
          The LP156WH4 is a Color Active Matrix Liquid Crystal Display with an integral LED backlight system. The
         matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in
         the normally white mode. This TFT-LCD has 15.6 inches diagonally measured active display area with HD
         resolution (1366 horizontal by 768 vertical pixel array). Each pixel is divided into Red, Green and Blue sub-
         pixels or dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is
         determined with a 6-bit gray scale signal for each dot, thus, presenting a palette of more than 262,144
         colors. The LP156WH4 has been designed to apply the interface method that enables low power, high
         speed, low EMI. The LP156WH4 is intended to support applications where thin thickness, low power are
         critical factors and graphic displays are important. In combination with the vertical arrangement of the sub-
         pixels, the LP156WH4 characteristics provide an excellent flat display for office automation products such
         as Notebook PC.


                                              EEPROM Block
                                                                                         1                             1366
                                                 for EDID

                                                                                                  TFT-LCD Panel
                   User connector




                                    LVDS      Timing Control                                      (FHD, GIP, TN)
                                    1port         Block

                                                                                         768
                                                DVCC         CLKs

                                                  Power               AVCC, AVDD
                   40               VCC                              VGH, VGL, GMA
                                                                                                    Source Driver
                                                  Block
                   Pin




                                                                                                    (Bottom Bent)
                                                                       GIP CLKs, DSC

                                    VLED        LED Driver              VOUT_LED
                                    LED_EN        Block                   FB1~4
                                                                                                 LED Backlight Ass'y
                                     PWM



                                        Control & Data                     Power                  EDID signal & Power



     General Features
          Active Screen Size                       15.6 inches diagonal
          Outline Dimension                        359.3(H, typ)     209.5(V, typ)   5.5(D,max) [mm]
          Pixel Pitch                              0.252mm        0.252 mm
          Pixel Format                             1366 horiz. By 768 vert. Pixels RGB strip arrangement
          Color Depth                              6-bit, 262,144 colors
          Luminance, White                         220 cd/m 2(Typ.5 point @ PWM Duty = 100%)
          Power Consumption                        Total 4.2 W(Typ.) Logic : 0.9W (Typ.@ Mosaic), B/L : 3.3W (Typ.@ VLED 12V )
          Weight                                   450g (Max.)
          Display Operating Mode                   Transmissive mode, normally white
          Surface Treatment                        Glare treatment (3H) of the front Polarizer
          RoHS Comply                              Yes
          BFR / PVC / As Free                      Yes for all

           Ver. 1.0                                                  Mar. 10, 2011                                            4 / 31




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                                                                                                                                       LP156WH4
                                                                                                                             Liquid Crystal Display
                                                             Product Specification


         2. Absolute Maximum Ratings
          The following are maximum values which, if exceeded, may cause faulty operation or damage to the unit.


                                             Table 1. ABSOLUTE MAXIMUM RATINGS

                                                                                 Values
                       Parameter                   Symbol                                                          Units            Notes
                                                                         Min               Max
          Power Input Voltage                          VCC               -0.3              4.0                     Vdc           at 25 r 5qC

          Operating Temperature                        TOP                0                50                       qC                1

          Storage Temperature                          HST               -20               60                       qC                1

          Operating Ambient Humidity                   HOP               10                90                      %RH                1

          Storage Humidity                             HST               10                90                      %RH                1


          Note : 1. Temperature and relative humidity range are shown in the figure below.
                    Wet bulb temperature should be 39qC Max, and no condensation of water.


                                                                                90% 80%

                                                                     60                   60%


                            Wet Bulb                            50
                                                                                                 Humidity[(%)RH]




                            Temperature [     ]                                                                    Storage

                                                        40                                 40%

                                                  30                                                               Operation
                                        20
                                                                                           20%
                                   10
                             0
                                                                                           10%


                      -20    0     10   20        30    40      50       60      70   80


                                   Dry Bulb Temperature [            ]




           Ver. 1.0                                              Mar. 10, 2011                                                                 5 / 31




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                                                                                                          LP156WH4
                                                                                                Liquid Crystal Display
                                                   Product Specification

         3. Electrical Specifications
         3-1. Electrical Characteristics
         The LP156WH4 requires two power inputs. The first logic is employed to power the LCD electronics and to
         drive the TFT array and liquid crystal. The second backlight is the input about LED BL.with LED Driver.

                                        Table 2. ELECTRICAL CHARACTERISTICS

                                                                                Values
                         Parameter                     Symbol                                        Unit    Notes
                                                                        Min      Typ     Max

          LOGIC :

           Power Supply Input Voltage                    VCC            3.0      3.3     3.6          V         1

           Power Supply Input Current     Mosaic          ICC            -       275     320         mA         2

           Power Consumption                             PCC             -       0.9     1.1          W         2

           Power Supply Inrush Current                   ICC_P           -        -      1500        mA         3

           LVDS Impedance                                ZLVDS          90       100     110                    4

          BACKLIGHT : ( with LED Driver)

           LED Power Input Voltage                       VLED           7.0      12.0    21.0         V         5

           LED Power Input Current                        ILED           -       275     290         mA         6

           LED Power Consumption                         PLED            -       3.3     3.5          W         6

           LED Power Inrush Current                      ILED_P          -        -      1500        mA         7

           PWM Duty Ratio                                                5        -      100          %         8

           PWM Jitter                                      -             0        -      0.2          %         9

           PWM Impedance                                 ZPWM           20       40       60          N

           PWM Frequency                                 FPWM           200       -      1000         Hz       10

           PWM High Level Voltage                       VPWM_H          3.0       -      5.3          V

           PWM Low Level Voltage                        VPWM_L           0        -      0.3          V

           LED_EN Impedance                              ZPWM           20       40       60          N

           LED_EN High Voltage                         VLED_EN_H        3.0       -      5.3          V

           LED_EN Low Voltage                          VLED_EN_L         0        -      0.3          V

           Life Time                                                   15,000     -       -          Hrs       11




           Ver. 1.0                                    Mar. 10, 2011                                           6 / 31




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                                                                                                         LP156WH4
                                                                                               Liquid Crystal Display
                                                  Product Specification

          Note)
           1. The measuring position is the connector of LCM and the test conditions are under 25 , fv = 60Hz,
              Black pattern.
           2. The specified Icc current and power consumption are under
              the Vcc = 3.3V , 25 , fv = 60Hz condition and Mosaic pattern.




           3. This Spec. is the max load condition for the cable impedance designing.
           4. The below figures are the measuring Vcc condition and the Vcc control block LGD used.
              The Vcc condition is same as the minimum of T1 at Power on sequence.




                                              3.3V
            Rising time
            Vcc              90%




              0V      10%
                                     0.5ms




           5. This impedance value is needed for proper display and measured form LVDS Tx to the mating connector.
           6. The measuring position is the connector of LCM and the test conditions are under 25 .
           7. The current and power consumption with LED Driver are under the Vled = 12.0V , 25 , Dimming of
              Max luminance and White pattern with the normal frame frequency operated(60Hz).
           8. The below figures are the measuring Vled condition                                  12.0V
              and the Vled control block LGD used.                  Rising time 90%
              VLED control block is same with Vcc control block.    VLED



                                                                       0V   10%
                                                                                          0.5ms

           9. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.
           10. If Jitter of PWM is bigger than maximum, it may induce flickering.
           11. This Spec. is not effective at 100% dimming ratio as an exception because it has DC level equivalent
               to 0Hz. In spite of acceptable range as defined, the PWM Frequency should be fixed and stable for
               more consistent brightness control at any specific level desired.
           12. The life time is determined as the time at which brightness of LCD is 50% compare to that of minimum
               value specified in table 7. under general user condition


           Ver. 1.0                                    Mar. 10, 2011                                          7 / 31




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                                                                                                                  LP156WH4
                                                                                                        Liquid Crystal Display
                                                           Product Specification

         3-2. Interface Connections
         This LCD employs two interface connections, a 40 pin connector used for the module electronics interface and
         the other connector used for the integral backlight system.

                                 Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

          Pin          Symbol                          Description                                     Notes
           1             NC      No Connection.                                    [Interface Chip]
           2            VCC      LCD Logic and driver power (3.3V Typ.)              1. LCD :
           3            VCC      LCD Logic and driver power (3.3V Typ.)                 SiW, SW0617(LCD Controller)
           4           V EEDID   DDC Power (3.3V)                                       Including LVDS Receiver.
           5             NC      No Connection.                                      2. System : SiW LVDSRx or equivalent
           6       Clk EEDID     DDC Clock                                             * Pin to Pin compatible with LVDS
           7      DATA EEDID     DDC Data
                                                                                   [Connector]
           8           ORX0-     Negative LVDS differential data input
                                                                                    UJU IS050-L40B-C10
           9           ORX0+     Positive LVDS differential data input
                                                                                    LSMtron GT05Q-40S-H10 or equivalent
           10           GND      LCM Ground
           11          ORX1-     Negative LVDS differential data input
                                                                                   [Mating Connector]
           12          ORX1+     Positive LVDS differential data input
                                                                                    20345-#40E-## series or equivalent
           13           GND      LCM Ground
           14          ORX2-     Negative LVDS differential data input             [Connector pin arrangement]
           15          ORX2+     Positive LVDS differential data input
           16           GND      LCM Ground
           17          ORXC-     Negative LVDS differential clock input
           18          ORXC+     Positive LVDS differential clock input
           19           GND      LCM Ground
                                                                                              [LCD Module Rear View]
           20            NC      No Connection
           21            NC      No Connection
           19           GND      LCM Ground
           23            NC      No Connection
           24            NC      No Connection
           19           GND      LCM Ground
           26            NC      No Connection
           27            NC      No Connection
           19           GND      LCM Ground
           29            NC      No Connection
           30           NC       No Connection
           31           GND      LCM Ground (LED Backlight Ground)
           32           GND      LCM Ground (LED Backlight Ground)
           33           GND      LCM Ground (LED Backlight Ground)
           34            NC      No Connection.
           35           PWM      System PWM Signal input for dimming
           36          LED_EN    LED Backlight On/Off
           37            NC      No Connection
           38           VLED     LED Backlight Power (7V-21V)
           39           VLED     LED Backlight Power (7V-21V)
           40           VLED     LED Backlight Power (7V-21V)




            Ver. 1.0                                             Mar. 10, 2011                                              8 / 31




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                                                                                                                                        LP156WH4
                                                                                                                              Liquid Crystal Display
                                                            Product Specification

         3-3. LVDS Signal Timing Specifications

         3-3-1. DC Specification
                            LVDS -

                                                    |VID|



                            LVDS +



                                                                                                      VCM            VIN_MAX VIN_MIN
                                       # |VID| = |(LVDS+) (LVDS-)|
                                       # VCM = {(LVDS+) + (LVDS-)}/2
                                  0V



                                                                Symb
                            Description                                                Min          Max              Unit              Notes
                                                                 ol
             LVDS Differential Voltage                            |VID|                100          600              mV                    -
             LVDS Common mode Voltage                             VCM                  0.6           1.8               V                   -
             LVDS Input Voltage Range                              VIN                 0.3           2.1               V                   -




          3-3-2. AC Specification
                                                                                Tclk

                      LVDS Clock



                      LVDS Data

                                                              tSKEW (Fclk = 1/Tclk)
                                                                1) 85MHz > Fclk         65MHz : -400 ~ +400
                                                  tSKEW         2) 65MHz > Fclk         25MHz : -600 ~ +600


                             Description                         Symbol                Min       Max          Unit                 Notes
                                                                                                                             85MHz > Fclk 
                                                                   tSKEW              - 400     + 400         ps
                                                                                                                                65MHz
            LVDS Clock to Data Skew Margin
                                                                                                                             65MHz > Fclk 
                                                                   tSKEW              - 600     + 600         ps
                                                                                                                                25MHz
            LVDS Clock to Clock Skew Margin (Even
                                                                 tSKEW_EO              - 1/7     + 1/7        Tclk                     -
            to Odd)
            Maximum deviation
                                                                    FDEV                 -           3         %                       -
            of input clock frequency during SSC
            Maximum modulation frequency
                                                                   FMOD                  -        200         KHz                      -
            of input clock during SSC


           Ver. 1.0                                             Mar. 10, 2011                                                                  9 / 31




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                                                                                                                             LP156WH4
                                                                                                                   Liquid Crystal Display
                                                                Product Specification

                                                     tSKEW_EO


                       LVDS Odd Clock
                                                                           Tclk

                       LVDS Even Clock
                                                                                  Tclk


                       LVDS Even Data




                                                           < Clock skew margin between channel >

                      Freq.

                      Fmax


                      Fcenter


                      Fmin




                                                                                                                         Time

                                                                      < Spread Spectrum >
          3-3-3. Data Format
             1) LVDS 1 Port



              RCLK+



               RA+/-            R3     R2       R1         R0    G0       R5      R4       R3      R2    R1   R0   G0      R5      R4


               RB+/-            G4     G3       G2         G1    B1       B0      G5       G4      G3    G2   G1    B1     B0      G5


               RC+/-            B5     B4       B3         B2   DE      VSYNC HSYNC        B5      B4    B3   B2   DE    VSYNC HSYNC


               RD+/-            G7     G6       R7         R6    X        B7      B6       G7      G6    R7   R6    X      B7      B6


                                 Previous (N-1 )th Cycle                          Current (Nth ) Cycle             Next (N+1)th Cycle




                                                                      < LVDS Data Format >

           Ver. 1.0                                                    Mar. 10, 2011                                               10 / 31




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                                                                                                                      LP156WH4
                                                                                                            Liquid Crystal Display
                                                         Product Specification


         3-4. Signal Timing Specifications
         This is the signal timing required at the input of the User connector. All of the interface signal timing should be
         satisfied with the following specifications and specifications of LVDS Tx/Rx for its proper operation.
                                                        Table 4. TIMING TABLE
              ITEM                             Symbol                       Min       Typ    Max           Unit        Note

              DCLK                       Frequency            fCLK           -        70.0    -            MHz

                             Period                              tHP       1462       1492   1536

              Hsync          Width                            tWH            32        48     62           tCLK

                             Width-Active                    tWHA          1366       1366   1366

                             Period                              tVP        776       782    792
              Vsync
                             Width                            tWV            2         5      8            tHP

                             Width-Active                    tWVA           768       768    768

                             Horizontal back porch           tHBP            34        42     60
                                                                                                           tCLK
              Data           Horizontal front porch          tHFP            32        36     40
             Enable          Vertical back porch             tVBP            4         6      12
                                                                                                           tHP
                             Vertical front porch            tVFP            2         3      4

                                                                                                    Condition : VCC =3.3V
         3-5. Signal Timing Waveforms
                                                                       High: 0.7VCC
            Data Enable, Hsync, Vsync
                                                                       Low: 0.3VCC

                               tCLK
             DCLK                             0.5 Vcc




                                                           tHP
           Hsync t
                   WH


                                       tHBP                               tWHA                      tHFP

            Data Enable
                                                            tVP
                       tWV
           Vsync                                                                                    tVFP
                                      tVBP                                tWVA


             Data Enable

            Ver. 1.0                                         Mar. 10, 2011                                                  11 / 31




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                                                                                                                                  LP156WH4
                                                                                                                        Liquid Crystal Display
                                                           Product Specification


         3-6. Color Input Data Reference
         The brightness of each primary color (red,green and blue) is based on the 6-bit gray scale data input for the
         color ; the higher the binary input, the brighter the color. The table below provides a reference for color
         versus data input.

                                                Table 5. COLOR DATA REFERENCE
                                                                                      Input Color Data
                                                  RED                                    GREEN                               BLUE
                       Color
                                      MSB                             LSB MSB                                 LSB MSB                             LSB
                                      R5 R4     R3         R2    R1 R0 G5 G4             G3         G2   G1   G0 B5     B4   B3         B2   B1   B0

                        Black         0     0    0         0      0     0 0       0       0         0     0     0 0     0    0          0     0     0

                        Red           1     1    1         1      1     1 0       0       0         0     0     0 0     0    0          0     0     0

                        Green         0     0    0         0      0     0 1       1       1         1     1     1 0     0    0          0     0     0

            Basic       Blue          0     0    0         0      0     0 0       0       0         0     0     0 1     1    1          1     1     1
            Color       Cyan          0     0    0         0      0     0 1       1       1         1     1     1 1     1    1          1     1     1

                        Magenta       1     1    1         1      1     1 0       0       0         0     0     0 1     1    1          1     1     1

                        Yellow        1     1    1         1      1     1 1       1       1         1     1     1 0     0    0          0     0     0

                        White         1     1    1         1      1     1 1       1       1         1     1     1 1     1    1          1     1     1

                        RED (00)      0     0    0         0      0     0 0       0       0         0     0     0 0     0    0          0     0     0

                        RED (01)      0     0    0         0      0     1 0       0       0         0     0     0 0     0    0          0     0     0

            RED                 ...                  ...                                      ...                                 ...

                        RED (62)      1     1    1         1      1     0 0       0       0         0     0     0 0     0    0          0     0     0

                        RED (63)      1     1    1         1      1     1 0       0       0         0     0     0 0     0    0          0     0     0

                        GREEN (00)    0     0    0         0      0     0 0       0       0         0     0     0 0     0    0          0     0     0

                        GREEN (01)    0     0    0         0      0     0 0       0       0         0     0     1 0     0    0          0     0     0

           GREEN                ...                  ...                                      ...                                 ...

                        GREEN (62)    0     0    0         0      0     0 1       1       1         1     1     0 0     0    0          0     0     0

                        GREEN (63)    0     0    0         0      0     0 1       1       1         1     1     1 0     0    0          0     0     0

                        BLUE (00)     0     0    0         0      0     0 0       0       0         0     0     0 0     0    0          0     0     0

                        BLUE (01)     0     0    0         0      0     0 0       0       0         0     0     0 0     0    0          0     0     1

            BLUE                ...                  ...                                      ...                                 ...

                        BLUE (62)     0     0    0         0      0     0 0       0       0         0     0     0 1     1    1          1     1     0

                        BLUE (63)     0     0    0         0      0     0 0       0       0         0     0     0 1     1    1          1     1     1




            Ver. 1.0                                              Mar. 10, 2011                                                              12 / 31




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                                                                                                                                LP156WH4
                                                                                                                      Liquid Crystal Display
                                                        Product Specification

         3-7. Power Sequence
                                                  90%                                                           90%
          Power Supply Input
            VCC
                                       0V 10%                                                                         10%

                                                                                                          T3 T7          T4
                                                    T1     T2                Valid Data
          Interface Signal, Vi
            LVDS
                                             0V

                                                                      T5     3.0V     3.0V     T6
          LED BL
                                             0V (Off)
          On/Off Control Signal
           LED_EN
                                                                      T9                           T10



           LED BL                                                            Valid Data
           Dimming Control Signal            0V (Low)
            PWM
                                                                 T8                                 T11

                                                                90%                                     90%
           LED Driver Input Voltage
            VLED                             0V              10%       T12                   T13          10%



                                               Table 6. POWER SEQUENCE TABLE
               Logic                Value                                      LED                              Value
                                                             Units                                                                     Units
             Parameter     Min.       Typ.         Max.                      Parameter             Min.         Typ.          Max.
                T1         0.5         -           10           ms              T8                 10             -            -        ms
                T2          0          -           50           ms              T9                  0             -            -        ms
                T3          0          -           50           ms              T10                 0             -            -        ms
                T4         400         -            -           ms              T11                10             -            -        ms
                T5         200         -            -           ms              T12                0.5            -            -        ms
                T6         200         -            -           ms              T13                 0             -           5000      ms
                T7          3          -           10           ms


            Note)
             1. Do not insert the mating cable when system turn on.
             2. Valid Data have to meet "3-3. LVDS Signal Timing Specifications"
             3. LVDS, LED_EN and PWM need to be on pull-down condition on invalid status.
             4. LGD recommend the rising sequence of VLED after the Vcc and valid status of LVDS turn on.


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                                                                                                                       LP156WH4
                                                                                                             Liquid Crystal Display
                                                            Product Specification

         4. Optical Specification
         Optical characteristics are determined after the unit has been `ON' and stable for approximately 30 minutes in
         a dark environment at 25qC. The values specified are at an approximate distance 50cm from the LCD surface
         at a viewing angle of ) and 4 equal to 0q.
         FIG. 1 presents additional information concerning the measurement equipment and method.

                              FIG. 1 Optical Characteristic Measurement Equipment and Method

                                               LCD Module                                         Pritchard 880 or
                 Optical Stage(x,y)
                                                                                                  equivalent




                                                                50cm
                                               Table 9. OPTICAL CHARACTERISTICS

           Table 7. OPTICAL CHARACTERISTICS                                           Ta=25qC, Vcc=3.3V, fV=60Hz, fCLK= 70.0MHz
                                                                           Values
                       Parameter                 Symbol                                             Units           Notes
                                                                Min             Typ        Max
          Contrast Ratio                           CR           400              -          -                         1
          Surface Luminance, white                LWH           185             220         -       cd/m 2            2
          Luminance Variation                    G WHITE         -              1.4        1.6                        3
          Response Time                          TrR+ TrD        -              16          -        ms               4
          Color Coordinates
                              RED                  RX          0.593        0.623         0.653
                                                   RY          0.339        0.369         0.399
                              GREEN                GX          0.316        0.346         0.376
                                                   GY          0.580        0.610         0.640
                              BLUE                 BX          0.118        0.148         0.178
                                                   BY          0.068        0.098         0.128
                              WHITE               WX           0.283        0.313         0.343
                                                  WY           0.299        0.329         0.359
          Viewing Angle                                                                                               5
                       x axis, right()=0q)         4r            40              -          -       degree
                       x axis, left ()=180q)       4l            40              -          -       degree
                       y axis, up ()=90q)          4u            10              -          -       degree
                       y axis, down ()=270q)       4d            30              -          -       degree
          Gray Scale                                                                                                  6




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                                                                                                               LP156WH4
                                                                                                     Liquid Crystal Display
                                                      Product Specification

         Note)
          1. Contrast Ratio(CR) is defined mathematically as
                                      Surface Luminance with all white pixels
                Contrast Ratio =
                                      Surface Luminance with all black pixels

           2. Surface luminance is the average of 5 point across the LCD surface 50cm from the surface with
              all pixels displaying white. For more information see FIG 1.

                             LWH = Average(L1,L2, ... L5)

           3. The variation in surface luminance , The panel total variation (G WHITE) is determined by measuring LN
              at each test position 1 through 13 and then defined as followed numerical formula.
             For more information see FIG 2.

                                              Maximum(L1,L2, ... L13)
                      G WHITE =
                                              Minimum(L1,L2, ... L13)

           4. Response time is the time required for the display to transition from white to black (rise time, TrR) and
              from black to white(Decay Time, TrD). For additional information see FIG 3.

           5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are determined
              for the horizontal or x axis and the vertical or y axis with respect to the z axis which is normal to the
               LCD surface. For more information see FIG 4.

           6. Gray scale specification                                                       * f V = 60Hz

                                         Gray Level                         Luminance [%] (Typ)
                                             L0                                     0.2
                                             L7                                     1.2
                                            L15                                     4.8
                                            L23                                    10.9
                                            L31                                    21.0
                                            L39                                    34.8
                                            L47                                    52.5
                                            L55                                    74.2
                                            L63                                    100




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                                                                                                                             LP156WH4
                                                                                                                   Liquid Crystal Display
                                                             Product Specification

          FIG. 2 Luminance
              
                                                                  H

                               10mm                          A


                                              6                       7               8          10mm
                                                         2                        3
                              B                                                                            H,V : ACTIVE AREA
                      V                                                                                      A : H/4 mm
                                              9                       1               10
                                                                                                             B : V/4 mm
                                                                                                           POINTS: 13 POINTS
                                                         4                        5 13
                                              11                  12




          FIG. 3 Response Time                                                  Active Area
          The response time is defined as the following figure and shall be measured by switching the input signal
          for "black" and "white".
                                                      TrR                                         TrD
                                  %
                             100
                              90

               Optical
              Response
                              10
                               0         white                                                          white
                                                                          black



          FIG. 4 Viewing angle                                        Normal
                                                                                           Eye      Y
                                                                       I = 90q , Up



                          I = 180q     ,
                                      Left                                  T

                                                                                  I


                                                                                                        I = 0q     ,
                                                                                                                 Right



                               I = 270q        ,
                                             Down

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                                                                                                               LP156WH4
                                                                                                     Liquid Crystal Display
                                                 Product Specification


         5. Mechanical Characteristics
         The contents provide general mechanical characteristics for the model LP156WH4. In addition the figures
         in the next page are detailed mechanical drawing of the LCD.

                                              Horizontal                             359.3 r 0.5mm

                      Outline Dimension       Vertical                               209.5 r 0.5mm

                                              Thickness                              5.5mm (max)

                                              Horizontal                             350.0 r 0.5mm
                          Bezel Area
                                              Vertical                               197.1 r 0.5mm

                                              Horizontal                             344.232 mm
                      Active Display Area
                                              Vertical                               193.536 mm

                           Weight             450g (Max.)

                      Surface Treatment       Glare treatment(3H) of the front polarizer




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                                                                                                 LP156WH4
                                                                                       Liquid Crystal Display
                                             Product Specification

                                                     Note) Unit:[mm], General tolerance: r 0.5mm




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                                                                                                 LP156WH4
                                                                                       Liquid Crystal Display
                                             Product Specification

                                                      Note) Unit:[mm], General tolerance: r 0.5mm
                                                                                          toleranc




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                                                                                                       LP156WH4
                                                                                             Liquid Crystal Display
                                                 Product Specification

           [ DETAIL DESCRIPTION OF SIDE MOUNTING SCREW ]




                             * Mounting Screw Length (A)
                                = 2.0(Min) / 2.5(Max)
                             * Mounting Screw Hole Depth (B)
                                = 2.5(Min)
                             * Mounting hole location : 3.1(Typ)
                             * Torque : 2.0 kgf.cm(Max)
                               (Measurement gauge : torque meter)

              Notes : 1. Screw plated through the method of non-electrolytic nickel plating is preferred
                         to reduce possibility that results in vertical and/or horizontal line defect due to
                         the conductive particles from screw surface.




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                                                                                                 LP156WH4
                                                                                       Liquid Crystal Display
                                             Product Specification


         LGD Proposal for system cover design.(Appendix)

                1
                           Gap check for securing the enough gap between LCM
                           and System cover.

                                                                 Max Thickness




                                                                                           Sponge



                          LCM Reflector Side



                                                                                       System Cover



                                                                             A Boundary Line


                         1.Rear side  of LCM is sensitive against external stress,and previous check
                           about interference is highly needed.
             Define      2.In case there is something from system cover comes into the boundary
                         above,mechanical interference may cause the FOS defects.
                         (Eg: Ripple, White spot..)

                 2        Check if antenna cable is sufficiently apart from T-CON of LCD Module.




             Define



                                       NO GOOD                                      GOOD


                         1.If system antenna is overlapped with T-CON,it might be cause the noise.

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                                                                                                        LP156WH4
                                                                                              Liquid Crystal Display
                                               Product Specification

         LGD Proposal for system cover design.
                             Gap check for securing the enough gap between LCM
                3
                             and System hinge.




                                                                                           COF
                                                                                          (D-IC)


                                                         Hinge
          Side Mount Screw Hole (4ea)
                                                        GAP:Min2.0mm
                                                                            ("I" TYPE)               ("L" TYPE)


                            1.At least 2.0mm of gap needs to be secured to prevent the shock
             Define           related defects.
                            2."L" type of hinge is recommended than "I" type under shock test.

                 4           Checking the path of the System wire.




                                                              #2                         #1
                                        #3


                                                            Bad        Ok                             Good
                              1.COF area needs to be handled with care.
                              2.GOOD 



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