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LP156WHU
Liquid Crystal Display
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 15.6" HD TFT LCD
Customer HP SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LP156WHU
Suffix TLA1
*When you obtain standard approval,
please use the above model name without suffix
APPROVED BY SIGNATURE APPROVED BY SIGNATURE
N. J. Seong / S.Manager
/
REVIEWED BY
/ S. S. Han / Manager
Y. C. Jung / Manager
/
PREPARED BY
K. T. Baek / Engineer
C. Y. Jung / Engineer
Please return 1 copy for your confirmation with Products Engineering Dept.
your signature and comments. LG Display Co., Ltd
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LP156WHU
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
3-4 SIGNAL TIMING SPECIFICATIONS 11
3-5 SIGNAL TIMING WAVEFORMS 11
3-6 COLOR INPUT DATA REFERNECE 12
3-7 POWER SEQUENCE 13
4 OPTICAL SFECIFICATIONS 14-16
5 MECHANICAL CHARACTERISTICS 17-19
6 RELIABLITY 20
7 INTERNATIONAL STANDARDS
7-1 SAFETY 21
7-2 EMC 21
7-3 Environment 21
8 PACKING
8-1 DESIGNATION OF LOT MARK 22
8-2 PACKING FORM 22
9 PRECAUTIONS 23-24
A APPENDIX. Enhanced Extended Display Identification Data 25-27
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LP156WHU
Liquid Crystal Display
Product Specification
RECORD OF REVISIONS
EDID
Revision No Revision Date Page Description
ver
0.0 Sep. 20. 2012 - First Draft (Preliminary Specification) -
Ver. 0.0 Sep. 20, 2012 3 / 27
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LP156WHU
Liquid Crystal Display
Product Specification
1. General Description
The LP156WHU 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 LP156WHU has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WHU 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 LP156WHU characteristics provide an excellent flat display for office automation products such
as Notebook PC.
EEPROM Block
EEPROM Block
for EDID & Tcon
for EDID & Tcon
Operating
1 1366
Operating
User connector
TFT-LCD Panel
LVDS Timing Control
Timing Control (HD, GIP, TN)
1port
(Tcon) Block
(Tcon) Block
EP
I 768
DVCC TCLKs
40
DVCC, AVDD
Pin
VCC Power Source Driver
Power VGH, VGL, GMA
(Bottom)
Block
Block GIP CLKs, DSC
VOUT_LED
VLED LED Driver LED Backlight Ass'y
LED Driver FB1~2
LED_EN
PWM Block
Block
Control & Data Power EDID signal & Power
General Features
Active Screen Size 15.6 inches diagonal
Outline Dimension 359.5(H, Typ.) 217.2(V, Typ.) 3.2(D, Max.) [mm] (with PCB Board)
Pixel Pitch 0.252mm X 0.252 mm
Pixel Format 1366 horiz. by 768 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 200 cd/m2(Typ.)
Power Consumption Total 3.5W (Typ.) Logic : 0.7W (Typ.@ Mosaic), B/L : 2.8W (Typ.@ VLED 12V )
Weight 370 g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Glare treatment (3H) of the front Polarizer
RoHS Compliance Yes
BFR / PVC / As Free Yes for all
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LP156WHU
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 [ ]
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LP156WHU
Liquid Crystal Display
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
The LP156WHU 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 - 210 245 mA 2
Power Consumption PCC - 0.7 0.8 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 6.5 12.0 21.0 V 5
LED Power Input Current ILED - 235 250 mA 6
LED Power Consumption PLED - 2.8 3.0 W 6
LED Power Inrush Current ILED_P - - 2000 mA 7
PWM Duty Ratio 5 - 100 % 8
PWM Jitter - 0 - 0.2 % 9
PWM Impedance ZPWM 20 40 60 k
PWM Frequency FPWM 200 - 1000 Hz 10
PWM High Level Voltage VPWM_H 3.0 - 3.6 V
PWM Low Level Voltage VPWM_L 0 - 0.3 V
LED_EN Impedance ZPWM 20 40 60 k
LED_EN High Voltage VLED_EN_H 3.0 - 3.6 V
LED_EN Low Voltage VLED_EN_L 0 - 0.3 V
Life Time 15,000 - - Hrs 11
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LP156WHU
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.
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LP156WHU
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.) TLI, TL2356 (LCD Controller)
4 V EEDID DDC Power (3.3V) Including LVDS Receiver.
5 NC No Connection 2. System : 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
KN38-40S-0.5H or equivalent
9 ORX0+ Positive LVDS differential data input
10 GND High Speed Ground
11 ORX1- Negative LVDS differential data input
[Connector pin arrangement]
12 ORX1+ Positive LVDS differential data input
13 GND High Speed Ground 40 1
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input
16 GND High Speed Ground
17 ORXC- Negative LVDS differential clock input [LCD Module Rear View]
18 ORXC+ Positive LVDS differential clock input
19 GND High Speed Ground
20 NC No Connection
21 NC No Connection
22 GND High Speed Ground
23 NC No Connection
24 NC No Connection
25 GND High Speed Ground
26 NC No Connection
27 NC No Connection
28 GND High Speed Ground
29 NC No Connection
30 NC No Connection
31 GND LED Backlight Ground
32 GND LED Backlight Ground
33 GND 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)
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LP156WHU
Liquid Crystal Display
Product Specification
3-3. LVDS Signal Timing Specifications
3-3-1. DC Specification
VDD=1.8V
Description Symbol Min Typ Max Unit Notes
LVDS Differential Voltage |VID| 100 - 600 mV -
LVDS Common mode Voltage VCM |VID| /2 1.2 VDD- |VID|/2 V -
LVDS Input Voltage Range VIN 0.3 - VDD V -
3-3-2. AC Specification
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
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LP156WHU
Liquid Crystal Display
Product Specification
< Clock skew margin between channel >
Freq.
Fmax
Fcenter * FDEV
Fcenter
Fmin
1
FMOD
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 >
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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 - 76.3 - MHz
Period tHP 1586 1610 1634
Hsync Width tWH 24 32 40 tCLK
Width-Active tWHA 1366 1366 1366
Period tVP 788 790 796
Vsync Width tWV 2 3 4 tHP
Width-Active tWVA 768 768 768
Horizontal back porch tHBP 172 180 188
tCLK
Data Horizontal front porch tHFP 24 32 40
Enable Vertical back porch tVBP 14 14 18
tHP
Vertical front porch tVFP 4 5 6
Appendix) all reliabilities are specified for timing specification based on refresh rate of 60Hz. However,
LP156WHU has a good actual performance even at lower refresh rate (e.g. 40Hz or 50Hz) for power saving
mode, whereas LP156WHU is secured only for function under lower refresh rate. 60Hz at Normal mode, 50Hz,
40Hz at Power save mode. Don't care Flicker level (power save mode).
3-5. Signal Timing Waveforms Condition : VCC =3.3V
High: 0.7VCC
Data Enable, Hsync, Vsync
Low: 0.3VCC
tCLK 0.5 Vcc
DCLK
tHP
Hsync t
WH
tHBP tWHA tHFP
Data Enable
tVP
tWV
Vsync tVBP tWVA tVFP
Data Enable
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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
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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
LED BL T5 3.0V 3.0V T6
On/Off Control Signal
LED_EN 0V (Off)
T9 T10
LED BL
Dimming Control Signal Valid Data
PWM 0V (Low)
T8 T11
LED Driver Input Voltage 90% 90%
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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4. Optical Specification
Optical characteristics are determined after the unit has been `ON' and stable for approximately 20 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 Equipment
Optical Stage(x,y)
500mm 50mm
Table 7. OPTICAL CHARACTERISTICS
Ta=25qC, VCC=3.3V, fV=60Hz, fCLK= 76.3MHz
Values
Parameter Symbol Units Notes
Min Typ Max
Contrast Ratio CR 400 500 - 1
Surface Luminance, white LWH 170 200 - cd/m2 2
Luminance Variation G WHITE - 1.4 1.6 % 3
Response Time TrR + TrD - 16 25 ms 4
Color Coordinates
RED RX 0.548 0.578 0.608
RY 0.314 0.344 0.374
GREEN GX 0.307 0.337 0.367
GY 0.541 0.571 0.601
BLUE BX 0.129 0.159 0.189
BY 0.090 0.120 0.150
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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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 1 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 following numerical formula.
For more information see FIG 2.
Maximum(L1,L2, ... L13)
G WHITE =
Miniimum(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 * fV = 60Hz
Gray Level Luminance [%] (Typ)
L0 0.15
L7 1.24
L15 4.97
L23 11.4
L31 20.6
L39 34.4
L47 53.0
L55 75.7
L63 100
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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 = 90 q , Up
I = 180 q ,
Left T
I
I = 0q ,
Right
I = 270 q ,
Down
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5. Mechanical Characteristics
The contents provide general mechanical characteristics for the model LP156WHU. In addition the figures
in the next page are detailed mechanical drawing of the LCD.
Horizontal 359.5 r 0.5mm
Outline Dimension Vertical 217.2 r 0.5mm
Thickness 3.2mm (max)
Horizontal 347.5 r 0.5mm
Bezel Area
Vertical 196.8 r 0.5mm
Horizontal 344.23 mm
Active Display Area
Vertical 193.54 mm
Weight 370 g (Max.)
Surface Treatment Hard Coating(3H), Anti Glare treatment of the front polarizer
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Note) Unit:[mm], General tolerance: r 0.5mm
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Note) Unit:[mm], General tolerance: r 0.5mm
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6. Reliability
Environment test condition
No. Test Item Conditions
1 High temperature storage test Ta= 60qC, 240h
2 Low temperature storage test Ta= -20qC, 240h
3 High temperature operation test Ta= 50qC, 50%RH, 240h
4 Low temperature operation test Ta= 0qC, 240h
5 Vibration test (non-operating) Sine wave, 5 ~ 150Hz, 1.5G, 0.37oct/min
3 axis, 30min/axis
6 Shock test (non-operating) - No functional or cosmetic defects following a shock
to all 6 sides delivering at least 180 G in a half sine
pulse no longer than 2 ms to the display module
- No functional defects following a shock delivering
at least 200 g in a half sine pulse no longer than 2
ms to each of 6 sides. Each of the 6 sides will be
shock tested with one each display, for a total of 6
displays
7 Altitude operating 0 ~ 10,000 feet (3,048m) 24Hr
storage / shipment 0 ~ 40,000 feet (12,192m) 24Hr
{ Result Evaluation Criteria }
There should be no change which might affect the practical display function when the display quality
test is conducted under normal operating condition.
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7. International Standards
7-1. Safety
a) UL 60950-1, Underwriters Laboratories Inc.
Information Technology Equipment - Safety - Part 1 : General Requirements.
b) CAN/CSA C22.2 No.60950-1-07, Canadian Standards Association.
Information Technology Equipment - Safety - Part 1 : General Requirements.
c) EN 60950-1, European Committee for Electrotechnical Standardization (CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1, The International Electrotechnical Commission (IEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
7-2. EMC
a) ANSI C63.4 "American National Standard for Methods of Measurement of Radio-Noise
Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz."
American National Standards Institute (ANSI), 2003.
b) CISPR 22 "Information technology equipment