LG LP-156WH2-TLR2 Service manual

Product Specification

SPECIFICATION

LP156WH2

Liquid Crystal Display

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

MODEL

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15.6” HD TFT LCDTitle

HPCustomer

*When you obtain standard approval,

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please use the above model name without suffix

LG Display Co., Ltd.SUPPLIER
LP156WH2*MODEL
TLR2Suffix

SIGNATUREAPPROVED BY

/

/

/

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

Ver. 1.0 Dec. 01, 2009

APPROVED BY

APPROVED BY

K. J. Kwon / S.Manager

REVIEWED BY

REVIEWED BY

S. R. Kim / Manager

PREPARED BY

PREPARED BY

B. T. Jang / Engineer

K. H. Lee / Engineer

Products Engineering Dept.

LG Display Co., Ltd

SIGNATURE

SIGNATURE

1 / 31

Product Specification

Contents

LP156WH2

Liquid Crystal Display

ITEMNo

COVER
CONTENTS
RECORD OF REVISIONS

1
2
3
3-1
3-2
3-3
3-3
3-4
3-5
3-6
4

GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTREISTICS
INTERFACE CONNECTIONS
LVDS SIGNAL TIMING SPECIFICATION
SIGNAL TIMING SPECIFICATIONS
SIGNAL TIMING WAVEFORMS
COLOR INPUT DATA REFERNECE

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POWER SEQUENCE
OPTICAL SFECIFICATIONS

Page

1
2
3
4
5

6-7

8

9-10

11
11
12
13

14-16

5

Ver. 1.0 Dec. 01, 2009

MECHANICAL CHARACTERISTICS
APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN A
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY 7-1
EMC 7-2
Environment 7-3
PACKING8
DESIGNATION OF LOT MARK 8-1
PACKING FORM 8-2
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A

17-20
21-23

24

25
25
25

26

26
27-28
29-31

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Product Specification

RECORD OF REVISIONS

LP156WH2

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)-Oct. 13, 20090.0
Final Spec. AllDec. 01. 20091.0

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EDID

ver

0.0

Ver. 1.0 Dec. 01, 2009

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LP156WH2

Liquid Crystal Display

Product Specification

1. General Description

The LP156WH2 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (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(768 vertical by 1366 horizontal 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 LP156WH2 has been designed to apply the interface method that enables
low power, high speed, low EMI. The LP156WH2 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 LP156WH2 characteristics provide an excellent flat display for office
automation products such as Notebook PC.

User connector 40 Pin

LVDS

1port

VCC

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VLED

LED_EN

PWM

General Features

EEPROM Block

for EDID

Timing Control

(Tcon) Block

M

i

n

i

-

L

DVCC

Power

Block

LED Driver

Block

Control & Data Power

TCLKs

DVCC, AVDD

VGH, VGL, GMA

GIP CLKs, DSC

VOUT_LED

15.6 inches diagonal Active Screen Size

359.3(H, typ) × 209.5(V, typ) × 5.5(D,max) [mm]Outline Dimension

0.252mm × 0.252 mmPixel Pitch
1366 horiz. By 768 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
200 cd/m2(Typ.5 point)Luminance, White
Total 5.4 W (Max.) @ LCM circuit 1.7 W (Max.), B/L input 3.7 W (Max.)Power Consumption
450g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-Glare treatment of the front polarizerSurface Treatment

YesRoHS Compliance
Yes for allBFR / PVC / As Free

V

FB

1

TFT-LCD Panel

(HD, DRD, TN)

D

S

768

Source Driver
(Bottom Bent)

LED Backlight Ass’y

EDID signal & Power

1366

Ver. 1.0 Dec. 01, 2009

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LP156WH2

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 Notes

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

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.

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Wet Bulb
Temperature [℃]

20

10

0

Symbol

60

50

40

30

Values

MaxMin

90% 80%

60%

40%

20%

10%

Units

Humidity[(%)RH]

Storage

Operation

at 25  5CVdc4.0-0.3VCC

1C500TOP
1C60-20HST
1%RH9010HOP
1%RH9010HST

-20

Ver. 1.0 Dec. 01, 2009

10

20 30 40 50

Dry Bulb Temperature [℃]

60 70 800

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LP156WH2

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WH2 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

SymbolParameter

MaxTypMin

LOGIC :

NotesUnit

1V3.63.33.0VCC Power Supply Input Voltage

BACKLIGHT : ( with LED Driver)

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PWM High Level Voltage

Mosaic

ICC Power Supply Input Current

PCC Power Consumption

PWM_H

-

-

kΩ604020ZPWM PWM Impedance

V5.3-3V

2mA515450
2W1.71.5
4mA1500--ICC_P Power Supply Inrush Current
5Ω11010090ZLVDS LVDS Impedance

6V20.012.07.0VLED LED Power Input Voltage
7mA-290- ILED LED Power Input Current
7W3.73.5-PLED LED Power Consumption
8mA1500--ILED_P LED Power Inrush Current
9%100-6 PWM Duty Ratio

10%0.2-0- PWM Jitter

11Hz1000-200FPWM PWM Frequency

PWM Low Level Voltage

Ver. 1.0 Dec. 01, 2009

PWM_L

V0.5-0V

kΩ604020ZPWM LED_EN Impedance

V5.3-3.0VLED_EN_H LED_EN High Voltage
V0.5-0VLED_EN_L LED_EN Low Voltage

12Hrs--15,000 Life Time

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LP156WH2

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 the minimum of T1 at Power on sequence.

Rising time
Vcc

0V

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5. This impedance value is needed to 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 whereas White pattern is displayed and fv is the frame frequency.

8. The below figures are the measuring Vled condition
and the Vled control block LGD used.
VLED control block is same with Vcc control block.

90%

10%

3.3V

0.5ms

Rising time
VLED

0V

10%

12.0V

90%

0.5ms

9. In case of duty ratio 1% ~ 5%, there is no functional problem but Flicker can be seen.

10. If Jitter of PWM is bigger than maximum. It may cause 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 LED is 50% compare to that of minimum
value specified in table 9.

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LP156WH2

Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs one interface connections, a 40 pin connector is used for the module electronics interface
and LED Driver.
The electronics interface connector is a model 20455-040E-0x manufactured by I-PEX.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

No connectionNC1
Power Supply, 3.3V Typ.VCC2
Power Supply, 3.3V Typ.VCC3
DDC 3.3V powerV EEDID4
No ConnectionNC5
DDC ClockClk EEDID6
DDC DataDATA EEDID7
Negative LVDS differential data inputOdd_RIN 0-8
Positive LVDS differential data inputOdd_RIN 0+9
GroundGND10
Negative LVDS differential data inputOdd_RIN 1- 11
Positive LVDS differential data inputOdd_RIN 1+12
GroundGND13
Negative LVDS differential data inputOdd_RIN 2-14
Positive LVDS differential data inputOdd_RIN 2+15
GroundGND16
Negative LVDS differential clock inputOdd_CLKIN-17
Positive LVDS differential clock inputOdd_CLKIN+18

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NC No Connection21

GroundGND19
No ConnectionNC20

GroundGND22
No ConnectionNC23
No ConnectionNC24
GroundGND25
No ConnectionNC26
No ConnectionNC27
GroundGND28
No ConnectionNC29
No ConnectionNC30
LED GroundVLED_GND31

LED GroundVLED_GND32
LED GroundVLED_GND33
No ConnectionNC34
PWM for Luminance controlBLIM35
Backlight On/Off ControlBL_On36
No ConnectionNC37
LED Power Supply (7V-20V)VLED38
LED Power Supply (7V-20V)VLED39
LED Power Supply (7V-20V)VLED40

1, Interface chips

1.1 LCD : SW, SW0624 (LCD Controller)
including LVDS Receiver

1.2 System : THC63LVDF823A
or equivalent
* Pin to Pin compatible with LVDS

2. Connector

2.1 LCD :20455-040E-0x, I-PEX
or its compatibles

2.2 Mating : 20453-040T-0x, I-PEX
or equivalent.

2.3 Connector pin arrangement

40

[LCD Module Rear View]

1

Ver. 1.0 Dec. 01, 2009

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Product Specification

LVDS +

LVDS -

0V

V

CM

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

|VID|

V

IN_MAXVIN_MIN

LVDS Data

t

SKEW

LVDS Clock

T

clk

t

SKEW (Fclk

= 1/T

clk

)

1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400

2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LP156WH2

Liquid Crystal Display

Description

LVDS Common mode Voltage
LVDS Input Voltage Range

3-3-2. AC Specification

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LVDS Clock to Data Skew Margin

Symbo

l

CM

IN

SKEW

SKEW

NotesUnitMaxMin

-mV600100|VID|LVDS Differential Voltage

-V1.80.6V

-V2.10.3V

NotesUnitMaxMinSymbolDescription

ps+ 400 400-t

600-

ps+ 600t

85MHz > Fclk ≥

65MHz

65MHz > Fclk ≥

25MHz

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

Ver. 1.0 Dec. 01, 2009

SKEW_EO

DEV

MOD

- 1/7

+ 1/7t

T

clk

%± 3-F

KHz200-F

-

-

-

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LVDS Even Data

LVDS Odd Clock

LVDS Even Clock

t

SKEW_EO

T

clk

T

clk

Freq.

F

max

F

center

F

min

Product Specification

< Clock skew margin between channel >

LP156WH2

Liquid Crystal Display

F

* F

center

DEV

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3-3-3. Data Format

1) LVDS 1 Port

RCLK+

RA+/-

RB+/-

RC+/-

R3 R2

G4 G3

B5 B4

R1 R0

G2 G1

B3 B2

1

F

MOD

< Spread Spectrum >

G0 R5 R4 R3 R2 R1 R0

B1 B0 G5 G4 G3 G2 G1

DE VSYNC HSYNC B5 B4 B3 B2

Time

G0

B1

DE

VSYNC HSYNC

R5 R4

B0 G5

Ver. 1.0 Dec. 01, 2009

RD+/-

G7 G6

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

R7 R6

X B7 B6 G7 G6 R7 R6

Current (Nth) Cycle

< LVDS Data Format >

X

B7 B6

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