Datasheet LP156WHB-TLA1 Datasheet (LG)

(

) Preliminary Specification

◆

( ) Final Specification

Title 15.6” HD TFT LCD

LP156WHB

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Customer Asus

MODEL

SIGNATURE APPROVED BY

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WHB

Suffix TLA1

*When you obtain standard approval,
please use the above model name without suffix

APPROVED BY

APPROVED BY

J. S. Park / Manager

REVIEWED BY

REVIEWED BY

S. W. Kim / Manager

PREPARED BY

PREPARED BY

K. T. Baek / Engineer
Y. C. Jung / Engineer

SIGNATURE

SIGNATURE

Please return 1 copy for your confirmation with
your signature and comments.

Ver. 0.0 Jan. 06, 2014

Products Engineering Dept.

LG Display Co., Ltd

1 / 30

LP156WHB

Liquid Crystal Display

Product Specification

Contents

RECORD OF REVISIONS…………………………………………………………………… 3

1. GENERAL DESCRIPTION……………………………………………………………… 4

2. ABSOLUTE MAXIMUM RATINGS……………………………………………………... 5

3. ELECTRICAL SPECIFICATIONS………………………………………….…………… 6

3-1. LCD ELECTRICAL CHARACTREISTICS…..…………………………………………..... 6

3-2. LED BACKLIGHT ELECTRICAL CHARACTREISTICS………………………………..... 6

3-3. INTERFACE CONNECTIONS……………………………………………………………… 8
3-4. LVDS SIGNAL TIMING SPECIFICATION………………………………………………… 9
3-5. SIGNAL TIMING SPECIFICATIONS………………………………………………………. 11
3-6. SIGNAL TIMING WAVEFORMS…………………………………………………………… 11
3-7. COLOR INPUT DATA REFERENCE……………………………………………………… 12
3-8. POWER SEQUENCE……………………………………………………………………….. 13

4. OPTICAL SPECIFICATIONS…………………………………………………………… 14

5. MECHANICAL CHARACTERISTICS…………………………………………………. 17

6. RELIABLITY……………………………………………………………………………… 20

7. INTERNATIONAL STANDARDS………………………………………………………. 21

7-1. SAFETY…………………………………………………………………..………………...… 21

7-2. ENVIRONMENT……………………………………………………………..…………...…. 21

8. PACKING………………………………………………………………………...……….. 22

8-1. DESIGNATION OF LOT MARK………………………………………………….………… 22
8-2. PACKING FORM…………………………………………………………………..………… 22

9. PRECAUTIONS…………………………………………………………………………… 23

APPENDIX A. LGD PROPOSAL FOR SYSTEM COVER DESIGN………………...……………..……. 25
APPENDIX B. ENHANCED EXTENDED DISPLAY IDENTIFICAION DATA….…………………….….. 30

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Product Specification

Record of Revisions

LP156WHB

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Jan. 06. 2014 All First Draft (Preliminary Specification) 0.0

EDID

version

Ver. 0.0 Jan. 06, 2014

3 / 30

LP156WHB

Liquid Crystal Display

Product Specification

1. General Description

The LP156WHB 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 sub­pixels 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 LP156WHB has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WHB 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 sub­pixels, the LP156WHB characteristics provide an excellent flat display for office automation products such
as Notebook PC.

I2C

EEPROM

1

for EDID & T-Con

User connector

LVDS

I2C

Timing

Data Signal

TFT-LCD Panel

(1366 x RGB x 768)

Controller

768

Gate

Signal

Power Block

LED Driver

DVCC, AVDD ,Vcom,

Gamma, Gate Signal

VOUT_LED

LED Cathode

Source Driver

LED Backlight

40

Pin

DVCC

VCC

VLED

LED_EN

PWM

General Features

Active Screen Size 15.6 inches diagonal
Outline Dimension
Pixel Pitch 0.252 mm 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 2.8W (Typ.) Logic : 0.7W (Typ. @ Mosaic), B/L : 2.1W (Typ.)
Weight 400g (Max.)
Display Operating Mode Normally white
Surface Treatment Glare treatment (3H) of the front Polarizer
RoHS Compliance Yes
BFR / PVC / As Free Yes for all

359.5(H, Typ.) × 217.2(V, Typ.) × 3.80(D, Max.) [mm] (with PCBA)

1366 1

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LP156WHB

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

Parameter Symbol

Units Notes

Min Max

Values

Power Input Voltage
Operating Temperature
Storage Temperature
Operating Ambient Humidity
Storage Humidity

VCC -0.3 4.0 V

TOP 0 50 C 1
HST -20 60 C 1
HOP 10 90 %RH 1
HST 10 90 %RH 1

DC

Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39C Max, and no condensation of water.
Note : 2. Storage Condition is guaranteed under packing condition.

90% 80%

60%

Humidity[(%)RH]

Storage

40%

Operation

20%

10%

Wet Bulb
Temperature [℃]

20

10

0

60

50

40

30

at 25  2C

-20

10

20 30 40 50

60 70 80 0

Dry Bulb Temperature [℃]

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Product Specification

3. Electrical Specifications

3-1. LCD Electrical Characteristics

Table 2. LCD ELECTRICAL CHARACTERISTICS

LP156WHB

Liquid Crystal Display

Parameter Symbol

Unit Notes

Min Typ Max

Power Supply Input Voltage VCC 3.0 3.3 3.6 V 1

Values

Permissive Power Supply Input Ripple

VCCrp

- - 100 mV

p-p

Power Supply Input Current Mosaic ICC - 220 255 mA
Power Consumption PCC - 0.7 0.8 W
Power Supply Inrush Current ICC_P - - 1.5 A 3
Differential Impedance ZLVDS 90 100 110 Ω

Note)

1. The measuring position is the connector of LCM and the test conditions are under 25℃, fv = 60Hz

2. The specified ICC current and power consumption are under the VCC = 3.3V , 25℃, fv = 60Hz condition
and Mosaic pattern.

2

3. The VCC rising time is same as the minimum of T1 at Power on sequence.

Rising time
V

CC

0V

10%

90%

3.3V

0.5ms

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Product Specification

3-2. LED Backlight Electrical Characteristics

Table 3. LED B/L ELECTRICAL CHARACTERISTICS

LP156WHB

Liquid Crystal Display

Parameter Symbol

Unit Notes

Min Typ Max

LED Power Input Voltage VLED 7.0 12.0 21.0 V 1
LED Power Input Current ILED - 175 193 mA

2

LED Power Consumption PLED - 2.1 2.3 W
LED Power Inrush Current ILED_P - - 1.5 A 3

Values

PWM Duty Ratio 5 - 100 %

4
PWM Jitter 0 - 0.2 % 5
PWM Frequency FPWM

PWM

High Level Voltage V
Low Level Voltage V

PWM_H

PWM_L

200 - 1000 Hz

2.5 - 3.6 V
0 - 0.3 V

6

High Voltage VLED_EN_H 2.5 - 3.6 V

LED_EN

Low Voltage VLED_EN_L 0 - 0.3 V

Life Time 12,000 - - Hrs 7

Note)

1. The measuring position is the connector of LCM and the test conditions are under 25℃.

2. The current and power consumption with LED Driver are under the V

= 12.0V , 25℃, PWM Duty 100%

LED

and White pattern with the normal frame frequency operated(60Hz).

3. The V

rising time is same as the minimum of T13 at Power on sequence.

LED

12.0V

Rising time

90%

VLED

0V

10%

0.5ms

4. The operation of LED Driver below minimum dimming ratio may cause flickering or reliability issue.

5. If Jitter of PWM is bigger than maximum, it may induce flickering.

6. 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.

7. 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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Liquid Crystal Display

Product Specification

3-3. Interface Connections

Table 4. MODULE CONNECTOR PIN CONFIGURATION (CN1)

Pin Symbol Description Notes

1 NC No Connection
2 VCC LCD Logic and driver power (3.3V Typical)
3 VCC LCD Logic and driver power (3.3V Typical)
4 V EDID DDC power (3.3V)
5 NC No Connection
6 CLK EDID DDC clock
7 DATA EDID DDC data
8 X0- Negative LVDS differential data input for pixel

9 X0+ Positive LVDS differential data input for pixel
10 GND High speed ground
11 X1- Negative LVDS differential data input for pixel
12 X1+ Positive LVDS differential data input for pixel
13 GND High speed ground
14 X2- Negative LVDS differential data input for pixel
15 X2+ Positive LVDS differential data input for pixel
16 GND High speed ground
17 XC- Negative LVDS differential clock input for pixel
18 XC+ Positive LVDS differential clock input for pixel
19 GND High speed ground
20
21
22
23
24
25
26
27
28
29
30

NC
NC

GND High Speed Ground

NC
NC

GND High Speed Ground

NC
NC

GND High Speed Ground

NC
NC

No Connection
No Connection

No Connection
No Connection

No Connection
No Connection

No Connection
No Connection

31 BL_GND LED Backlight ground
32 BL_GND LED Backlight ground
33 BL_GND LED Backlight ground
34 NC No Connection
35 BL PWM System PWM signal input for dimming
36 BL ENABLE LED Backlight on/off control
37 NC No Connection
38 VLED LED Backlight power (12V Typical)
39 VLED LED Backlight power (12V Typical)
40 VLED LED Backlight power (12V Typical)

[Connector]
LSM, GT05Q-40S-H10
or equivalent

[Connector pin arrangement]
Pin 40 Pin 1

[EDID & LGD P-Vcom Share pin]

1. Pin for EDID & P-Vcom : #6, #7

2. P-Vcom Address : 0101000x

LP156WHB

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Product Specification

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LP156WHB

Liquid Crystal Display

LVDS -

LVDS +

0V

|VID|

# |VID| = |(LVDS+) – (LVDS-)|
# VCM = {(LVDS+) + (LVDS-)}/2

V

CM

V

IN_MAXVIN_MIN

VDD=1.8V

Description Symbol Min Typ Max Unit Notes

LVDS Differential Voltage |VID| 100 - 600 mV ­LVDS Common mode Voltage V
LVDS Input Voltage Range V

CM

IN

|VID| /2 1.2 VDD- |VID|/2 V -

0.3 - VDD V -

3-3-2. AC Specification

T

clk

LVDS Clock

LVDS Data

t

= 1/T

)

clk

t

SKEW

SKEW (Fclk

1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400

2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600

Description Symbol Min Max Unit Notes

t

SKEW

- 400 + 400 ps

LVDS Clock to Data Skew Margin

t

SKEW

LVDS Clock to Clock Skew Margin (Even
to Odd)

Maximum deviation
of input clock frequency during SSC

Maximum modulation frequency
of input clock during SSC

t

SKEW_EO

F

DEV

F

MOD

Ver. 0.0 Jan. 06, 2014

- 600 + 600 ps

- 1/7 + 1/7 T

85MHz > Fclk ≥

65MHz

65MHz > Fclk ≥

clk

-

± 3

% -

25MHz

- 200 KHz -

-

9 / 30

t

SKEW_EO

LP156WHB

Liquid Crystal Display

Product Specification

LVDS Odd Clock

LVDS Even Clock

LVDS Even Data

Freq.

F

max

F

center

F

min

3-3-3. Data Format

T

clk

T

clk

< Clock skew margin between channel >

1

F

MOD

< Spread Spectrum >

F

center

* F

Time

DEV

1) LVDS 1 Port

Tclk

RCLK+

RA+/-

RB+/-

RC+/-

R3 R2

G4 G3

B5 B4

Tclk *4/7

R1 R0

G2 G1

B3 B2

Tclk *1/7

G0 G5 R4 R3 R2 R1 R0

B1 B0 G5 G4 G3 G2 G1

DE V

SYNC HSYNC

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

< LVDS Data Format >

Ver. 0.0 Jan. 06, 2014

Tclk *3/7

B5 B4 B3 B2

G0

B1

DE

R5 R4

B0 G5

V

SYNC HSYNC

MSB R5

R4
R3
R2
R1

LSB R0

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LP156WHB

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 f

Period t

Hsync

Width tWH
Width-Active t
Period tVP

Vsync

Width tWV
Width-Active t
Horizontal back porch t

Data

Enable

Horizontal front porch t
Vertical back porch t
Vertical front porch t

CLK

HP

WHA

WVA

HBP

HFP

VBP

VFP

- 76.32 -

1594 1610 1626

24 32 40

1366

787 790 793

4 5 6

768

160 164 168

44 48 52
13 14 15

2 3 4

MHz

t

CLK

t

HP

t

CLK

t

HP

Notice. all reliabilities are specified for timing specification based on refresh rate of 60Hz. However,
LP156WHB has a good actual performance even at lower refresh rate (e.g. 40Hz or 50Hz) for power saving
Mode, whereas LP156WHB 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

Data Enable, Hsync, Vsync

High: 0.7VCC
Low: 0.3VCC

DCLK

tCLK

0.5 Vcc

tHP

Hsync

tWH

tWHA

Data Enable

t

HBP

tVP

tWV

Vsync

Data Enable

Ver. 0.0 Jan. 06, 2014

t

VBP

tWVA

t

HFP

t

VFP

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LP156WHB

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

Basic
Color

RED

GREEN

BLUE

Color

Black
Red
Green
Blue
Cyan
Magenta
Yellow
White
RED (00)
RED (01)

…
RED (62)
RED (63)
GREEN (00)
GREEN (01)

...
GREEN (62)
GREEN (63)
BLUE (00)
BLUE (01)

…
BLUE (62)
BLUE (63)

RED

MSB LSB

R 5 R 4 R 3 R2 R 1 R 0 G 5 G 4 G 3 G 2 G 1 G 0 B 5 B 4 B 3 B 2 B 1 B 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1
0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 0 0 0 0 0 0 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0

… … …
1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0

… … …
0 0 0 0 0 0 1 1 1 1 1 0 0 0 0 0 0 0
0 0 0 0 0 0 1 1 1 1 1 1 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

… … …
0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 0
0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1

MSB LSB

GREEN

BLUE

MSB LSB

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3-7. Power Sequence

Power Supply Input

VCC

0V

Product Specification

90%

LP156WHB

Liquid Crystal Display

90%

10% 10%

Interface Signal, V

i

LVDS

0V

LED BL
On/Off Control Signal

LED_EN

0V (Off)

LED BL
Dimming Control Signal

PWM

0V (Low)

LED Driver Input Voltage

VLED

0V

Table 6. POWER SEQUENCE TABLE

Symbol

T

1

T

2

T3 0 - 50
T

4

T5 200 - - ms
T6 200 - - ms
T

7

Min Typ Max

0.5 - 10 ms
0 - 50 ms

500 - - ms

0.5 - 10 ms

Value

T

T7

T

T

1

2

T5

Valid Data

3.0V

3.0V

T9

3

T6

T10

T4

Valid Data

T8

90%

10%

Units

ms

T12

Symbol

T8 10 - - ms

T9 0 - - ms
T10 0 - - ms
T11 10 - - ms
T12 0.5 - 10 ms
T13 0.5 - 10 ms

T11

90%

T13

10%

Value

Min Typ Max

Units

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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LP156WHB

Liquid Crystal Display

Product Specification

4. Optical Specification

Optical characteristics are determined after the unit has been ‘ON’ and stable for approximately 20 minutes in
a dark environment at 25C. The values specified are at an approximate distance 50cm from the LCD surface
at a viewing angle of  and  equal to 0.
FIG. 1 presents additional information concerning the measurement equipment and method.

FIG. 1 Optical Characteristic Measurement Equipment and Method

Optical Stage(x,y)

LCD Module

500mm±50mm

Equipment

Table 7. OPTICAL CHARACTERISTICS

Ta=25C, VCC=3.3V, fV=60Hz

Parameter Symbol

Contrast Ratio CR 400 500 - 1
Surface Luminance, white LWH 170 200 - cd/m



Luminance Variation

Response Time Tr + Tf

RED

Color
Coordinates

Viewing Angle

Gray Scale 6

GREEN

BLUE

WHITE

x axis, right(=0) r 40 - ­ x axis, left (=180) l 40 - ­ y axis, up (=90) u 10 - ­ y axis, down (=270) d 30 - -

WHITE (5P)



WHITE(13P)

Rx
Ry
Gx
Gy
Bx

By
Wx 0.313
Wy 0.329

Min Typ Max

- 1.2 1.4

- 1.4 1.6

- 16 25 ms 4

Typical

- 0.03

Values

0.578

0.344

0.337

0.571

0.159

0.12

Units Notes

2

- 3

Typical

+ 0.03

Degree

2

5

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LP156WHB

Liquid Crystal Display

Product Specification

Note)

1. It should be measured in the center of screen(1 Point). Contrast Ratio(CR) is defined mathematically as
Surface Luminance with all white pixels

Contrast Ratio(1 Point) =
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 2.

L

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

Maximum (1,2, … 5 Point) Maximum (1,2, … 13 Point)
 WHITE (5P) =  WHITE (13P) =
Minimum (1,2, … 5 Point) Minimum (1,2, … 13 Point)

4. Response time is the time required for the display to transition from white to black (rise time, Tr) and
from black to white (falling time, Tf). 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

= Average(1,2, … 5 Point)

WH

Gray Level Luminance [%] (Typ)

L0 TBD

L7 TBD
L15 TBD
L23 TBD
L31 TBD
L39 TBD
L47 TBD
L55 TBD
L63 100

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Product Specification

FIG. 2 Luminance

<Measuring point for Average Luminance & measuring point for Luminance variation>

H

LP156WHB

Liquid Crystal Display

10mm

B

V

FIG. 3 Response Time

6 7 8

9 10

11 12

A

10mm

2

1

4

3

5

13

Active Area

: ACTIVE AREA

H,V

A : H/4 mm
B : V/4 mm

POINTS: 13 POINTS

The response time is defined as the following figure and shall be measured by switching the input signal
for “black” and “white”.

100

90

%

Tr

Tf

Optical

Response

10

0

white

white

black

o

rmal

FIG. 4 Viewing angle

N

<Dimension of viewing angle range>



=

180

Ver. 0.0 Jan. 06, 2014

,



ft

e

L



270

=

,



wn

o

D



Eye

Y





=

90

Up

,



,





=

0

i

ght

R

16 / 30

LP156WHB

Liquid Crystal Display

Product Specification

5. Mechanical Characteristics

The contents provide general mechanical characteristics for the model LP156WHB. In addition the figures
in the next page are detailed mechanical drawing of the LCD.

Horizontal 359.5  0.5 mm

Outline Dimension

Bezel Area

Active Display Area

Weight 400g (Max.)

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

Vertical 217.2  0.5 mm (with PCBA)
Thickness 3.8 mm (max)
Horizontal 347.5  0.5 mm
Vertical 196.8  0.5 mm
Horizontal 344.23 mm
Vertical 193.54 mm

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<FRONT VIEW>

LP156WHB

Liquid Crystal Display

Product Specification

Ver. 0.0 Jan. 06, 2014

18 / 30

Product Specification

LP156WHB

Liquid Crystal Display

<REAR VIEW>

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

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Liquid Crystal Display

Product Specification

6. Reliability

Environment test condition

No. Test Item Conditions

1 High temperature storage test Ta= 60C, 240h
2 Low temperature storage test Ta= -20C, 240h
3 High temperature operation test Ta= 50C, 50%RH, 240h
4 Low temperature operation test Ta= 0C, 240h
5 Vibration test (non-operating) Random, 1.0Grms, 10 ~ 300Hz(PSD 0.0035)

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

LP156WHB

7 Altitude operating

storage / shipment

{ 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.

0 ~ 10,000 feet (3,048m) 24Hr
0 ~ 40,000 feet (12,192m) 24Hr

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Liquid Crystal Display

Product Specification

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 Electro technical Standardization (CENELEC).
Information Technology Equipment - Safety - Part 1 : General Requirements.
d) IEC 60950-1, The International Electro technical Commission (IEC).
Information Technology Equipment - Safety - Part 1 : General Requirements

7-2. Environment

a) RoHS, Directive 2011/65/EU of the European Parliament and of the council of 8 June 2011

LP156WHB

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Product Specification

8. Packing
8-1. Designation of Lot Mark

a) Lot Mark

A B C D E F G H I J K L M

A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.

Note

1. YEAR

LP156WHB

Liquid Crystal Display

Year

Mark

2. MONTH

Month

Mark

b) Location of Lot Mark

Serial No. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.

8-2. Packing Form

a) Package quantity in one box : 20 pcs
b) Box Size : 478 x 365 x 328

2016 G 2017 H 2018 J 2019

F

Jun 7 Jul 8 Aug 9 Sep

6

C B A

2014 E 2015

D

Apr 5 May

4

2013 2012 2011

2020

K

Oct

A

Nov

B

Dec Mar Feb Jan

C 3 2 1

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LP156WHB

Liquid Crystal Display

Product Specification

9. PRECAUTIONS

Please pay attention to the followings when you use this TFT LCD module.

9-1. MOUNTING PRECAUTIONS

(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the
module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.
Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former
generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.
(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB
pencil lead. And please do not rub with dust clothes with chemical treatment.
Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental
to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like
chamois soaks with petroleum benzene. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes
deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
(10) When handling the LCD module, it needs to handle with care not to give mechanical stress to the PCB
and Mounting Hole area.”

9-2. OPERATING PRECAUTIONS

(1) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :
V=± 200mV(Over and under shoot voltage)

(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes lower.)
And in lower temperature, response time(required time that brightness is stable after turned on) becomes
longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes damage to polarizer or
electrical contacted parts. And after fading condensation, smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be
done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.

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LP156WHB

Liquid Crystal Display

Product Specification

9-3. ELECTROSTATIC DISCHARGE CONTROL

Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.

9-4. PRECAUTIONS FOR STRONG LIGHT EXPOSURE

Strong light exposure causes degradation of polarizer and color filter.

9-5. STORAGE

When storing modules as spares for a long time, the following precautions are necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the

temperature between 5C and 35C at normal humidity.
(2) The polarizer surface should not come in contact with any other object.
It is recommended that they be stored in the container in which they were shipped.

9-6. HANDLING PRECAUTIONS FOR PROTECTION FILM

(1) When the protection film is peeled off, static electricity is generated between the film and polarizer.
This should be peeled off slowly and carefully by people who are electrically grounded and with well
ion-blown equipment or in such a condition, etc.
(2) The protection film is attached to the polarizer with a small amount of glue. If some stress is applied
to rub the protection film against the polarizer during the time you peel off the film, the glue is apt to
remain on the polarizer.
Please carefully peel off the protection film without rubbing it against the polarizer.
(3) When the module with protection film attached is stored for a long time, sometimes there remains a
very small amount of glue still on the polarizer after the protection film is peeled off.
(4) You can remove the glue easily. When the glue remains on the polarizer surface or its vestige is
recognized, please wipe them off with absorbent cotton waste or other soft material like chamois
soaked with normal-hexane.

9-7. THE LGD QA RESPONSIBILITY WILL BE AVOIDED IN CASE OF BELOW

(1) When the customer attaches TSM(Touch Sensor Module) on LCM without Supplier’s approval.
(2) When the customer attaches cover glass on LCM without Supplier’s approval.
(3) When the LCMs were repaired by 3rd party without Supplier’s approval.
(4) When the LCMs were treated like Disassemble and Rework by the Customer and/or Customer’s
representatives without supplier’s approval.

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Product Specification

APPENDIX A. LGD Proposal for system cover design

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

Boss

PAD

Back cover

◆ a : min 0mm

◆ b : min 0.3mm, Max 1.0mm

Back cover

Boss

LCM
PAD

LP156WHB

Liquid Crystal Display

a

b

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.
(e.g.. Ripple, White spot..)

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

T-CON

T-CON

OK

NG

Define If system antenna is overlapped with T-CON, It might be cause the noise

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Product Specification

APPENDIX A. LGD Proposal for system cover design

3 Checking the path of the System wire

LP156WHB

Liquid Crystal Display

NG

1. If Wire path overlapped with LCM, it is happened white spot. COF problem, etc.

Define

2. OK  Wire path design to system side.
NG  Wire path overlapped with LCM.

4 Add pad to Prevent panel crack against external load (push)

Pad

Back cover

flange

Boss

LCM

Back cover

PAD

boss

push

push

Pad

Back cover

boss

boss

crack

Back cover

OK

NG

Wire

boss

boss

OK

1. At flat type LCM, panel is easily cracked at flange area during push, assemble.

Define

2. Add pad, it prevent panel crack

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Product Specification

APPENDIX A. LGD Proposal for system cover design

5 Check the rib or Bracket on back cover

LCM

LCM

Back cover

OK

Back cover

NG

Rib

LCM

LCM

Back cover

OK

Back cover

CO

LP156WHB

Liquid Crystal Display

Bracket

1.It is necessary that the height of back cover rib or bracket is higher than LCM height. It can

Define

prevent direct compression of panel at LCM edge.

2.”ㄱ” shape bracket is stronger than “I” shape one.

6 Check the gap between front cover and LCM (glass)

LCM

Back cover

[OK] a ≥ 0.3mm
[CO] 0.3mm ≥ a ≥ 0.1mm
[NG] a ≤ 0.1mm

a

Front cover

Define Ripple can be happened by little gap between glass and front cover.

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Product Specification

APPENDIX A. LGD Proposal for system cover design

7 Check the rib or Bracket on back cover

Front cover

LCM

Back cover

OK

1.If it is possible, shrink to apply front cover of white color.

Define

2. White color can caused light leakage

LCM

Back cover

LP156WHB

Liquid Crystal Display

Light leakage

Front cover

NG

8 Check the wire position(path)

Back cover

OK

Back cover

NG

1. It is necessary that wire is posited out of hook, not posited near hook,.

Define

2. If wire is posited near hook, it can be happened assemble error and panel crack during
assemble front cover

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Product Specification

APPENDIX A. LGD Proposal for system cover design

9 Check mouse pad (touch pad) depth and shape of edge

Mouse pad

OK

a

LP156WHB

Liquid Crystal Display

[OK] a ≤ 0.3mm
[CO] 0.5mm ≥ a ≥ 0.3mm
[NG] a ≥ 0.5mm

NG

1.Mouse pad step is deep, it is caused panel crack by external load.

Define

2. The edge shape must be smooth.

10 Check the step of keyboard area

Keyboard Keyboard

push

OK

push

crack

NG

Define The step of keyboard at the side edge of main body, it is caused panel crack

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Product Specification

APPENDIX A. LGD Proposal for system cover design

11 Check the gap [PCB ~ system]

LP156WHB

Liquid Crystal Display

Panel

BLU

a ≥ 0.5mm [at max dimension of design]
a ≥ 1.0mm [at typical dimension of

design]

1. Gap is too small, FPC is easily cracked by interference and repetitive bending.

Define

(circuit is opened) .

2. Gap is must be kept more than 0.5mm(max dim.) and 1.0mm(typ dim.) .

12 System rib (on A cover)

OK

LCM

Back cover

a

A

A’

Rib

FPC

Back cover

a

Rib, Frame …

External

shock

crack

NG

a ≥ 0.5mm [at max dimension of design]
a ≥ 1.0mm [at typical dimension of

design]

1. Gap is too small and rib is too short, panel is easily cracked by external stress.

Define

2. Gap is must be kept more than 0.5mm(max dim.) and 1.0mm(typ dim.) .

3. The figure of rib is continuous or fully long.

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LP156WHB

Liquid Crystal Display

Product Specification

APPENDIX B. Enhanced Extended Display Identification Data (EEDIDTM) 1/3

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LP156WHB

Liquid Crystal Display

Product Specification

APPENDIX B. Enhanced Extended Display Identification Data (EEDIDTM) 2/3

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LP156WHB

Liquid Crystal Display

Product Specification

APPENDIX B. Enhanced Extended Display Identification Data (EEDIDTM) 3/3

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