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                                                                                                           LC420EUN
                                                       Product Specification




                                                SPECIFICATION
                                                          FOR
                                                        APPROVAL



         (    ) Preliminary Specification
         (    ) Final Specification

                         Title                                  42.0" WUXGA TFT LCD

                 BUYER                      General                    SUPPLIER         LG Display Co., Ltd.

                 MODEL                                                  *MODEL          LC420EUN
                                                                         SUFFIX         SEF1
                                                                    *When you obtain standard approval,
                                                                     please use the above model name without suffix

                                              SIGNATURE                                                SIGNATURE
                    APPROVED BY                                                APPROVED BY
                                                 DATE                                                     DATE


                              /                                          J.T. Kim / Team Leader



                                                                               REVIEWED BY

                                                                        Y.J. Heo / Project Leader
                              /



                                                                               PREPARED BY

                                                                          J.W.Yang / Engineer
                              /

                                                                               TV Product Development Dept.
                                                                                    LG Display Co., Ltd.
             Please return 1 copy for your confirmation with
                        your signature and comments.
             Ver. 0.1                                                                                           1 /39




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                                                                                           LC420EUN
                                               Product Specification

                                                   CONTENTS

            Number                                      ITEM                                  Page
                         COVER                                                                 1

                         CONTENTS                                                              2
                         RECORD OF REVISIONS                                                   3

             1           GENERAL DESCRIPTION                                                   4

             2           ABSOLUTE MAXIMUM RATINGS
                           SO                  GS                                              5

             3           ELECTRICAL SPECIFICATIONS                                             6

                   3-1   ELECTRICAL CHARACTERISTICS                                            6

                   3-2   INTERFACE CONNECTIONS                                                 8

                   3-3   SIGNAL TIMING SPECIFICATIONS                                          11
                   34
                   3-4   SIGNAL TIMING WAVEFORMS                                               12
                   3-5   COLOR DATA REFERENCE                                                  15

                   3-6   POWER SEQUENCE                                                        16

             4           OPTICAL SPECIFICATIONS                                                18

             5           MECHANICAL CHARACTERISTICS                                            24

             6           RELIABILITY                                                           27

             7           INTERNATIONAL STANDARDS                                               28

                   7-1   SAFETY                                                                28
                   7-2   EMC                                                                   28
                 7-3     ENVIRONMENT                                                           28

             8           PACKING                                                               29

                   8-1   DESIGNATION OF LOT MARK                                               29

                   8-2   PACKING FORM                                                          29
             9           PRECAUTIONS                                                           30
                   9-1   MOUNTING PRECAUTIONS                                                  30
                   9-2   OPERATING PRECAUTIONS                                                 30
                   9-3   ELECTROSTATIC DISCHARGE CONTROL                                       31
                   9-4
                   94    PRECAUTIONS FOR STRONG LIGHT EXPOSURE                                 31
                   9-5   STORAGE                                                               31
                   9-6   HANDLING PRECAUTIONS FOR PROTECTION FILM                              31
                   9-7   OPERATING GONDITION GUIDE                                             31

           Ver. 0.1                                                                             2 /39




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                                                                                              LC420EUN
                                                Product Specification


                                         RECORD OF REVISIONS

         Revision No.   Revision Date    Page                                   Description
             0.1        June, 01, 2011    -       Preliminary Specification(First Draft)




           Ver. 0.1                                                                              3 /39




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                                                                                                                                   LC420EUN
                                                              Product Specification
         1. General Description
         The LC420EUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
         ba c k l i g h t s y s t e m . T h e m a t r i x e m p l o y s a - Si T h i n F i l m T r a n s i s t o r as th e a c t i v e e l em e n t
                                                                                                                                                  t.
         It is a transmissive display type which is operating in the normally black mode. It has a 42.02 inch diagonally
         measured active display area with WUXGA resolution (1080 vertical by 1920 horizontal pixel array).
         Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes.
         Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot.
         Therefore, it can present a palette of more than 16.7Million colors.
         It has been designed to apply the 8-bit 2-port LVDS interface.
         It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
         high color depth and fast response time are important.
            g             p                   p                      p
                                                                              Mini-LVDS(RGB)
            LVDS                               EEPROM
                                                                                                          Source Driver Circuit
            2Port
                                             SCL        SDA                                    S1                                     S1920
           LVDS
           Select              LVDS 1,2                                                G1

                                           Timing Controller
          OPC
          Enable
                                Option
                                signal
                                          LVDS Rx + OPC + DGA                                       TFT - LCD Panel
                      CN1                      Integrated               Control                     (1920     RGB 1080 pixels)
                     (51pin)                                            Signals
                                                                                                            [Gate In Panel]
          ExtVBR-B              I2C                                                   G1080

            +12.0V
                                              Power Circuit         Power Signals

         PWM_OUT CN2                             Block
           1~3   (8 pin)                                                                                    Scanning Block 1
                                PWM_OUT
                                  1~3
                                                                                                            Scanning Block 2
                   +24.0V, GND, On/Off          LED Driver
                                                                                                            Scanning Block 3

         General Features
           Active Screen Size                     42.02 inches(1067.31mm) diagonal

           Outline Dimension                       960.4(H)    560.4(V) X 9.9(B)/17.4 mm(D) (Typ.)

           Pixel Pitch                             0.4845 mm x 0.4845 mm

           Pixel Format                            1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
           Color Depth                             8bit, 16.7Million colors
           Luminance, White                        360 cd/m2 (Center 1point ,Typ.)

           Viewing Angle (CR>10)                   Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))

           Power Consumption                       Total 54 5W(TBD) [Logic= 8W(TBD) LED Driver=46 5W (TBD ExtVbr B=100% )]
                                                         54.5W(TBD)         8W(TBD),    Driver=46.5W (TBD, ExtVbr_B=100%

           Weight                                  TBD Kg (Typ.)
           Display Mode                            Transmissive mode, Normally black
           Surface Treatment                       Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 10%)

            Ver. 0.1                                                                                                                      4 /39




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                                                                                                                                         LC420EUN
                                                                Product Specification


         2. Absolute Maximum Ratings
                                  g
          The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
          to the LCD module.

         Table 1. ABSOLUTE MAXIMUM RATINGS

                                                                                                  Value
                             Parameter                                Symbol                                                 Unit          Note
                                                                                           Min                 Max
                                         LCD Circuit                   VLCD                 0.3
                                                                                           -0.3           +14.0
                                                                                                           14.0              VDC
          Power Input Voltage
                                         Driver                           VBL              -0.3           + 27.0             VDC
                                         ON/OFF                      VOFF / VON            -0.3                +5.5          VDC            1
          Driver Control Voltage
                                         Brightness                  EXTVBR-B              0.0                +3.6           VDC
          T-Con Option Selection Voltage                              VLOGIC               -0.3                +4.0          VDC
          Operating Temperature                                           TOP               0                    +50           C
                                                                                                                                           2,3
          Storage Temperature
               g     p                                                    TST              -20                   +60           C
          Panel Front Temperature                                         TSUR              -                    +68           C            4
          Operating Ambient Humidity                                      HOP              10                          90    %RH
                                                                                                                                           2,3
          Storage Humidity                                                HST              10                          90    %RH

        Note 1. Ambient temperature condition (Ta = 25 r 2 C )
             2. Temperature and relative humidity range are shown in the figure below.
                 Wet bulb temperature should be Max 39 C, and no condensation of water.
                               p                             ,
             3. Gravity mura can be guaranteed below 40 C condition.
             4. The maximum operating temperatures is based on the test condition that the surface temperature
                of display area is less than or equal to 68 C with LCD module alone in a temperature controlled chamber.
                Thermal management should be considered in final product design to prevent the surface temperature of
                display area from being over 68 . The range of operating temperature may be degraded in case of
                improper thermal management in final product design.
                                                                                           90%

                                                                                     60
                                                                                                    60%

                                                                            50                                               Storage
                                                                                                          Humidity [(%)RH]




                                           Wet Bulb
                                           Temperature [   C]
                                                                     40
                                                                                                    40%
                                                                                                                             Operation
                                                                30
                                                       20
                                                  10
                                             0
                                                                                                    10%


                                   -20      0     10       20   30    40        50    60    70     80

                                                  Dry Bulb Temperature [    C]
            Ver. 0.1                                                                                                                         5 /39




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                                                                                                           LC420EUN
                                                    Product Specification

         3. Electrical Specifications
         3-1. El t i l Ch
         3 1 Electrical Characteristics
                              t i ti
          It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
          backlight and LED Driver circuit.

         Table 2. ELECTRICAL CHARACTERISTICS

                                                                         Value
                       Parameter                Symbol                                             Unit          Note
                                                              Min         Typ
                                                                           y          Max
          Circuit :
           Power Input Voltage                   VLCD         10.8        12.0        13.2         VDC
                                                               -          TBD         TBD          mA             1
           Power Input Current                   ILCD
                                                               -          TBD         TBD          mA             2
           Power Consumption                     PLCD                   8.0(TBD)      TBD          Watt           1
           Rush current                          IRUSH         -            -         5.0           A             3
                                                            5 (TBD)         -         100           %             4
                                              Ext_PWM
                                                            1 (TBD)         -         100           %           On duty
           Brightness Adjust for Back Light

                                              Ext_PWM          40           50                      Hz           PAL
                                              Frequency                     60         80           Hz          NTSC


        Note 1. The specified current and p
                      p                    power consumption are under the VLCD=12.0V, Ta=25 r 2 C, fV=60Hz
                                                          p
                condition, and mosaic pattern(8 x 6) is displayed and fV is the frame frequency.
             2. The current is specified at the maximum current pattern.
             3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).
             4. ExtVBR-B signal have to input available duty range and sequence.
                After Driver ON signal is applied, ExtVBR-B should be sustained from 5% to 100% more than 500ms.
                After that, ExtVBR-B 1% and 100% is possible
                For more information, please see 3-6-2. Sequence for LED Driver.
             5. Ripple voltage level is recommended under 5% of typical voltage




                                                                                             White : 255 Gray
                                                                                             Black : 0 Gray




                                                    Mosaic Pattern(8 x 6)


            Ver. 0.1                                                                                              6 /39




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                                                                                                            LC420EUN
                                                    Product Specification
         Table 3. ELECTRICAL CHARACTERISTICS (Continue)

                                                                         Values
                          Parameter                 Symbol                                   Unit         Notes
                                                                Min       Typ       Max

          LED Driver :

          Power Supply Input Voltage                 VBL        22.8      24.0      25.2     Vdc            1

          Power Supply Input Current                  IBL        -      1.9(TBD) 2.1(TBD)     A             1

                                                                                                    VBL = 22.8V
          Power Supply Input Current (In-Rush)      In-rush      -          -     10(TBD)     A     Ext VBR-B = 100%
                                                                                                             3

          Power Consumption                          PBL         -     45.5(TBD) 49.8(TBD)    W             1

           Input Voltage for                On       V on       2.5         -        5.0     Vdc
           Control System      On/Off
               Signals                      Off      V off      -0.3      0.0        0.7     Vdc

         LED :
          Life Time                                           30,000                         Hrs            2


          Notes :
          1. Electrical characteristics are determined after the unit has been `ON' and stable for approximately 60
             minutes at 25 2 C. The specified current and power consumption are under the typical supply Input voltage
             24V and VBR (ExtVBR-B : 100%), it is total power consumption.
          2. The life time (MTTF) is determined as the time which luminance of the LED is 50% compared to that of initial
             value at the typical LED current (ExtVBR-B :100%) on condition of continuous operating in LCM state at
             25 2 C.
          3. The duration of rush current is about 200ms. This duration is applied to LED on time.
          4. Even though inrush current is over the specified value, there is no problem if I2T spec of fuse is satisfied.




            Ver. 0.1                                                                                              7 /39




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                                                                                                                      LC420EUN
                                                           Product Specification

         3-2. Interface Connections
         This LCD module employs two kinds of interface connection 51 pin connector is used for the module
                                                           connection, 51-pin
         electronics and 14-pin connector is used for the integral backlight system.
            3-2-1. LCD Module
          - LCD Connector(CN1): FI-R51S-HF(manufactured by JAE) or compatible
          - Mating Connector : FI-R51HL(JAE) or compatible

         Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
          No      Symbol                    Description               No    Symbol                      Description
           1           NC      No Connection (Note 4)                 27       NC       No Connection
           2           NC      No Connection (Note 4)                 28      R2AN      SECOND LVDS Receiver Signal (A-)
           3           NC      No Connection (Note 4)                 29      R2AP      SECOND LVDS Receiver Signal (A+)
           4           NC      No Connection (Note 4)                 30      R2BN      SECOND LVDS Receiver Signal (B-)
           5           NC      No Connection (Note 4)                 31      R2BP      SECOND LVDS Receiver Signal (B+)
           6           NC      No Connection (Note 4)                 32      R2CN      SECOND LVDS Receiver Signal (C-)
           7     LVDS Select    H =JEIDA , L or NC = VESA             33      R2CP      SECOND LVDS Receiver Signal (C+)
           8      ExtVBR-B
                  ExtVBR B     E t
                               External PWM (from S t )
                                      l     (f    System)             34      GND       Ground
           9           NC      No Connection (Note 4)                 35     R2CLKN     SECOND LVDS Receiver Clock Signal(-)
          10     OPC Enable    `H' = Enable , `L' or NC = Disable     36     R2CLKP     SECOND LVDS Receiver Clock Signal(+)
          11           GND     Ground                                 37      GND       Ground
          12       R1AN        FIRST LVDS Receiver Signal (A-)        38      R2DN      SECOND LVDS Receiver Signal (D-)
          13       R1AP        FIRST LVDS Receiver Signal (A+)        39      R2DP      SECOND LVDS Receiver Signal (D+)
          14       R1BN        FIRST LVDS Receiver Signal (B-)        40       NC       No Connection
          15       R1BP        FIRST LVDS Receiver Signal (B+)        41       NC       No Connection
          16       R1CN        FIRST LVDS Receiver Signal (C )
                                                          (C-)        42    NC or GND   No Connection or Ground
          17       R1CP        FIRST LVDS Receiver Signal (C+)        43    NC or GND   No Connection or Ground
          18           GND     Ground                                 44      GND       Ground
          19      R1CLKN       FIRST LVDS Receiver Clock Signal(-)    45      GND       Ground
          20      R1CLKP       FIRST LVDS Receiver Clock Signal(+)    46      GND       Ground
          21       GND         Ground                                 47       NC       No connection
          22       R1DN        FIRST LVDS Receiver Signal (D-)        48      VLCD      Power Supply +12.0V
          23       R1DP        FIRST LVDS Receiver Signal (D+)        49      VLCD      Power Supply +12.0V
          24        NC         No Connection                          50      VLCD      Power Supply +12.0V
          25        NC         No Connection                          51      VLCD      Power Supply +12.0V
          26     NC or GND     No Connection or Ground                 -        -                             -


          Note    1. All GND(ground) pins should be connected together to the LCD module's metal frame.
                  2. All VLCD (power input) pins should be connected together.
                  3. All Input levels of LVDS signals are based on the EIA 644 Standard.
                  4. #1~#6 & #9 NC (No Connection): These pins are used only for LGD (Do not connect)
                  5. Specific pins(pin No. #10) are used for Scanning function of the LCD module.
                     If not used, these pins are no connection (Please see the Appendix VI for more information )
                            used                    connection.                                         information.)
                  6. Specific pin No. #44 is used for "No signal detection" of system signal interface.
                     It should be GND for NSB(No Signal Black) during the system interface signal is not.
                     If this pin is "H", LCD Module displays AGP(Auto Generation Pattern).



            Ver. 0.1                                                                                                     8 /39




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                                                                                           LC420EUN
                                                          Product Specification

         3-2-2. Backlight Module
             Master
             M t
            -LED Driver Connector
              : 20022WR - H14B2(Yeonho) or Equivalent
            - Mating Connector
              : 20022HS - 14B2(Yeonho) or Equivalent
         Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

            Pin No               Symbol                            Description      Note
               1                  VBL           Power Supply +24.0V
               2                  VBL           Power Supply +24.0V

               3                  VBL           Power Supply +24.0V

               4                  VBL           Power Supply +24.0V

               5                  VBL           Power Supply +24.0V
               6                  GND           Backlight Ground
               7                  GND           Backlight Ground
               8                  GND           Backlight Ground                     1
               9                  GND           Backlight Ground
              10                  GND           Backlight Ground
              11                 Status         Back Light Status                    2

              12                 VON/OFF        Backlight ON/OFF control
              13                   NC           Don't care
              14                   NC           Don't care

         Notes :1. GND should be connected to the LCD module's metal frame.
                2. Normal : Low (under 0.7V) / Abnormal : OPEN
                3. Each impedance of pin #12 is over TBD [K] .


                      Rear view of LCM
                                                           PCB

                                                      1              14
                      1           14
                                                             ...
                           ...



                                           



           Ver. 0.1                                                                             9 /39




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                                                                                                              LC420EUN
                                                     Product Specification

         3-3. Signal Timing Specifications
         Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
         timings should be satisfied with the following specification for normal operation.

         Table 6. TIMING TABLE (DE Only Mode)

                     ITEM                Symbol       Min           Typ           Max         Unit             Note

                             Display
                                          tHV         960           960           960         tCLK           1920 / 2
                             Period
         Horizontal
                              Blank       tHB         100           140           240         tCLK              1
                              Total       tHP        1060          1100          1200         tCLK
                             Display
                                          tVV        1080          1080          1080         Lines
                             Period

                                                      20             45            69
          Vertical            Blank       tVB                                                 Lines             1
                                                     (228)         (270)         (300)

                                                     1100          1125           1149
                              Total       tVP                                                 Lines
                                                    (1308)        (1350)         (1380)



                     ITEM                Symbol       Min           Typ           Max         Unit             Note
                              DCLK        fCLK       63.00         74.25         78.00        MHz
                            Horizontal     fH        57.3
                                                     57 3          67.5
                                                                   67 5           70          KHz               2

         Frequency
                                                                                                                 2
                                                       57            60            63
                             Vertical      fV                                                  Hz       NTSC : 57~63Hz
                                                      (47)          (50)          (53)
                                                                                                        (PAL : 47~53Hz)



         Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).
                                  d     t     f EMI dd         dditi   l l k to i i        l for l k       i
                  If you use spread spectrum of EMI, add some additional clock t minimum value f clock margin.

               2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
                  refresh rate and the horizontal frequency

                 Timing should be set based on clock frequency.




            Ver. 0.1                                                                                                  10 /39




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                                                                                                  LC420EUN
                                                   Product Specification

         3-4. LVDS Signal Specification
           3-4-1. LVDS Input Signal Timing Diagram


                            0.7VDD
            DE, Data
                                      0.3VDD


                            tCLK
                                         0.5 VDD

          DCLK


                                                           Valid data

           First data              Invalid data      Pixel 0,0    Pixel 2,0                 Invalid data


                                                           Valid data

           Second data             Invalid data      Pixel 1,0    Pixel 3,0                 Invalid data




                              DE(Data Enable)


                                                                              tHV

                                                          tHP


                                                            1                        1080

          DE(Data Enable)


                                                                               tVV



                                                            tVP




            Ver. 0.1                                                                                   11 /39




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                                                                                                                                                                LC420EUN
                                                                      Product Specification

         3-4-2. LVDS Input Signal Characteristics
           1) DC Specification
                 S   ifi ti
                              LVDS     -




                              LVDS     +



                                                                                                                 V CM          V IN _ MAX   V IN _ MIN

                                           # V CM = {( LVDS +) + ( LVDS - )} /2
                                                             )
                                  0V


                              Description                              Symbol                  Min        Max           Unit                             Note

           LVDS Common mode Voltage                                       VCM                   1.0        1.5           V                                -

           LVDS Input Voltage Range                                        VIN                  0.7        1.8           V                                -

           Change in common mode Voltage                                   VCM                   -         250          mV                                -
           2) AC Specification
                                                                                        Tclk


           LVDS Clock

                                                              A

          LVDS Data

                                                                       ( F clk = 1 /T clk )
                                                tSKEW tSKEW
                                                                                                                                                     A
                                                                        Tclk
          LVDS 1'st Clock                                                                                                                                       80%

          LVDS 2nd / 3rd / 4th Clock
                                                                                                                                                                20%
                                                                                                                                                          tRF
                                  tSKEW_min tSKEW_max

                               Description                             Symbol                  Min         Max           Unit                            Note
                                               High Threshold              VTH                 100         300           mV
          LVDS Differential Voltage                                                                                                                       3
                                               Low Threshold               VTL                 -300       -100           mV
          LVDS Clock to Data Skew                                        tSKEW                  -     |(0.25*Tclk)/7|     ps                               -
          LVDS Clock/DATA Rising/Falling time                              tRF                 260    |(0.3*Tclk)/7|      ps                              2
          Eff ti ti of LVDS
          Effective time f                                                  teff          | 360|             -            ps                               -
         LVDS Clock to Clock Skew (Even to Odd)       tSKEW_EO    -    |1/7* Tclk| ps                                                                      -
         Note 1. All Input levels of LVDS signals are based on the EIA 644 Standard.
              2. If tRF isn't enough, teff should be meet the range.
              3. LVDS Differential Voltage is defined within teff

            Ver. 0.1                                                                                                                                                  12 /39




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                                                                                              LC420EUN
                                              Product Specification




                                                       360ps

                                   0.5tui                                          tui
          V+
          data



                                                                VTH
           Vcm
                                                                VTL




          V
          V-
                                            360ps
          data
                                                teff
         V+                                                                         tui : Unit Interval
         clk




           Vcm




          V-
          clk




            Ver. 0.1                                                                               13 /39




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                                                                                                                                           LC420EUN
                                                              Product Specification

         3-5. Color Data Reference

         The brightness of each primary color(red,green,blue) is based on the 8bit gray scale data input for the color.
         The higher binary input, the brighter the color. Table 7 provides a reference for color versus data input.


         Table 7. COLOR DATA REFERENCE

                                                                                  Input Color Data

                                                RED                                    GREEN                                 BLUE
                  Color
                                    MSB                            LSB       MSB                         LSB     MSB                             LSB

                                    R7 R6 R5 R4 R3 R2 R1 R0              G7 G6 G5 G4 G3 G2 G1 G0                 B7 B6 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   0   0         0    0    0   0

                  Red (255)         1   1   1   1         1    1   1   1 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  Green (255)       0   0   0   0         0    0   0   0 1    1    1   1         1   1   1     1 0   0   0   0         0    0    0   0

          Basic        (   )
                  Blue (255)        0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 1   1   1   1         1    1    1   1
          Color   Cyan              0   0   0   0         0    0   0   0 1    1    1   1         1   1   1     1 1   1   1   1         1    1    1   1

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

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

                  RED (000)         0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  RED (001)         0   0   0   0         0    0   0   1 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

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

                  RED (254)         1   1   1   1         1    1   1   0 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  RED (255)         1   1   1   1         1    1   1   1 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  GREEN (000)       0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  GREEN (001)       0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     1 0   0   0   0         0    0    0   0

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

                  GREEN (254)       0   0   0   0         0    0   0   0 1    1    1   1         1   1   1     0 0   0   0   0         0    0    0   0

                  GREEN (255)       0   0   0   0         0    0   0   0 1    1    1   1         1   1   1     1 0   0   0   0         0    0    0   0

                  BLUE (000)        0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   0

                  BLUE (001)        0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 0   0   0   0         0    0    0   1

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

                  BLUE (254)        0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 1   1   1   1         1    1    1   0

                  BLUE (255)        0   0   0   0         0    0   0   0 0    0    0   0         0   0   0     0 1   1   1   1         1    1    1   1




           Ver. 0.1                                                                                                                             14 /39




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                                                                                                                             LC420EUN
                                                         Product Specification

         3-6. Power Sequence
         3-6-1.
         3-6-1 LCD Driving circuit


                                                    90%                                                           90%
       Power Supply For LCD
                         VLCD                    10%                                                               10%         10%
                                            0V
                                                                                                       T8
                                                    T1
                                                                                                                        T5
                                                               T2
                                                                                 Valid Data                 Vcm
                                                                                                            V : LVDS Common mode Voltage
                                                              30%
       Interface Signal (Tx_clock)         0V

                                                                100%        T3                    T4
                                                         T6
       User Control Signal
       (
       (LVDS_select, OPC Enable, ExtVBR-B)
                     ,         ,         )

       Power for LED                                                T7            LED ON



         Table 8. POWER SEQUENCE

                                                                    Value
                 Parameter                                                                                  Unit              Notes
                                           Mi
                                           Min                       T
                                                                     Typ                 Max
                                                                                         M
                    T1                     0.5                        -                    20                ms                 1
                    T2                      0                         -                       -              ms                 2
                    T3                     200                        -                       -              ms                 3
                    T4                     200                        -                       -              ms                 3
                    T5                     1.0                        -                       -               s                 4
                    T6                      -                         -                    T2                ms                 5
                    T7                     0.5                        -                       -               s                 6
                    T8                     100                        -                       -              ms                 7
                  1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
        Note :    2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.
                  3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
                     abnormal display would be shown. There is no reliability problem.
                  4. T5 should be measured after the Module has been fully discharged between power off and on period.
                  5.
                  5 If the on time of signals (Interface signal and user control signals) precedes the on time of Power (VLCD)
                                                                                                                             ),
                     it will be happened abnormal display. When T6 is NC status, T6 doesn't need to be measured.
                  6. If there is no abnormal display, no problem.
                  7. It is recommendation specification that T8 has to be 100ms as a minimum value.
                      Please avoid floating state of interface signal at invalid period.
                      When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.
            Ver. 0.1                                                                                                            15 /39




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                                                                                                                LC420EUN
                                                          Product Specification

         3-6-2. Sequence for LED Driver
            Power S
            P     Supply F LED D i
                      l For    Driver



                                                                    24V (typ.)
                                                   90%                                     90%
                            VBL
                                             10%
                                       0V

                                                     T1    T2                        T3

                           VON/OFF
                                                                          LED ON



                           ExtVBR-B


                                                            T4     T6




          3-6-3. Dip condition for LED Driver

                                                                           T5
                                                                                                   VBL : 24V


                   VBL(Typ.) x 0.8


                                                                                                   0V

         Table 9. Power Sequence for LED Driver

                                                          Values
                  Parameter                                                        Units              Remarks
                                            Min             Typ            Max
                      T1                    20               -               -      ms                    1
                      T2                    500              -               -      ms
                      T3                    10               -               -      ms
                      T4                    0                -               -      ms
                      T5                     -               -              10      ms             VBL(Typ) x 0.8
                      T6                    500              -               -      ms                    2

         Notes : 1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time.
                     Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
                 2. In T6 section, ExtVBR-B should be sustained from 5% to 100% .


           Ver. 0.1                                                                                                 16 /39




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                                                                                                                LC420EUN
                                                       Product Specification

         4. Optical Specification
         Optical characteristics are determined after the unit has been `ON' and stable in a dark environment at 25 2 C.
         The values are specified at 50cm from the LCD surface at a viewing angle of ) and T equal to 0 .
         FIG. 1 shows additional information concerning the measurement equipment and method.

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




                                                            50cm
                             FIG. 1 Optical Characteristic Measurement Equipment and Method

                                                                         Ta= 25 2 C, VLCD=12 0V fV=60Hz Dclk=74 25MHz
                                                                                         =12.0V, =60Hz, Dclk=74.25MHz,
         Table 10. OPTICAL CHARACTERISTICS                                                             EXTVBR-B =100%
                                                                                  Value
                          Parameter                       Symbol                                       Unit        Note
                                                                         Min       Typ       Max
         Contrast Ratio                                     CR           1000      1400        -                     1
                                                                         290       360         -
         Surface Luminance, white                           LWH                                        cd/m2         2
                                                                         110       135
         Luminance Variation                           G WHITE     5P      -         -        1.3                    3
                             Gray-to-Gray                 G to G           -        6         9         ms           5
         Response Time
                             Uniformity                  G to G BW         -        8         12                     4
                                                            Rx                     TBD
                             RED
                                                            Ry                     TBD
                                                            Gx                     TBD
                             GREEN
         Color Coordinates                                  Gy            Typ      TBD        Typ
         [CIE1931]                                           Bx          -0.03     TBD       +0.03
                             BLUE
                                                             By                    TBD
                                                            Wx                    0.279
                             WHITE
                                                            Wy                    0.292
         Color Temperature                                                        10,000                K
         Color Gamut                                                                68                  %
                               x axis, right(I=0 )           Tr           89         -         -
                 2D            x axis, left (I=180 )         Tl           89         -         -
                                                                                                      degree         6
         Viewing (CR>10)       y axis up (I=90 )
                                 axis,                       Tu           89         -         -
         Angle                 y axis, down (I=270 )         Td           89         -         -
                      3D                                 Tu (y axis)
                               up + down                                         11.2(TBD)              10           7
                   (CT10%)                                +Td (y axis)
         Gray Scale                                                        -         -         -                     8

            Ver. 0.1                                                                                               17 /39




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                                                                                                             LC420EUN
                                                    Product Specification
         Note : 1. Contrast Ratio(CR) is defined mathematically as :
                  CR(Contrast Ratio) = Maximum CRn (n=1, 2, 3, 4, 5)
                           Surface Luminance at position n with all white p
                                                 p                         pixels
                  CRn
                  CR =
                           Surface Luminance at position n with all black pixels
                    n = the Position number(1, 2, 3, 4, 5). For more information, see FIG 2.
               2. Surface luminance are determined after the unit has been `ON' and 1 Hour after lighting the
                  backlight in a dark environment at 25 2 C. Surface luminance is the luminance value at center
                  1-point across the LCD surface 50cm from the surface with all pixels displaying white.
                  For more information see the FIG. 2.
               3. The variation in surface luminance , G WHITE is defined as :
                 G WHITE(5P) = Maximum(Lon1,Lon2, Lon3, Lon4, Lon5) / Minimum(Lon1,Lon2, Lon3, Lon4, Lon5)
                  Where Lon1 t Lon5 are th luminance with all pixels di l i white at 5 l
                  Wh           to        the l i          ith ll i l displaying hit t locations .ti
                  For more information, see the FIG. 2.
               4. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)
                  and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
                     G to GBW Spec stands for average value of all measured points.
                    Photo Detector : RD-80S / Field : 2
               5. G to G is Variation of Gray to Gray response time composing a picture
                                                              Xi = Individual Data
                           G to G ( ) =
                                          



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