LG LP-156WH2-TLQB Service manual

LP156WH2

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

15.6” HD TFT LCDTitle

HPCustomer

MODEL

*When you obtain standard approval,

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SIGNATUREAPPROVED BY

/

/

/

please use the above model name without suffix

APPROVED BY

APPROVED BY

Hans Kim / S.Manager

REVIEWED BY

REVIEWED BY

S. R. Kim / Manager

PREPARED BY

PREPARED BY

J. P. Lee / Engineer

B. I. Park / Engineer

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

SIGNATURE

SIGNATURE

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

Ver. 1.0 Mar. 02, 2010

Products Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LP156WH2

Liquid Crystal Display

ITEMNo

COVER
CONTENTS
RECORD OF REVISIONS

1
2
3

4

GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTREISTICS

3-1

INTERFACE CONNECTIONS

3-2

LVDS SIGNAL TIMING SPECIFICATION

3-3

SIGNAL TIMING SPECIFICATIONS

3-3

SIGNAL TIMING WAVEFORMS

3-4

COLOR INPUT DATA REFERNECE

3-5

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POWER SEQUENCE

3-6

OPTICAL SFECIFICATIONS

Page

1
2
3
4
5

6-7

8

9-10

11
11
12
13

14-16

5

Ver. 1.0 Mar. 02, 2010

MECHANICAL CHARACTERISTICS
APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGNA
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
Environment7-3
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
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 (Final Specification)-Mar. 02, 20100.0

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EDID

ver

0.0

Ver. 1.0 Mar. 02, 2010

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LP156WH2

Liquid Crystal Display

Product Specification

1. General Description

The LP156WH2 is a Color Active Matrix Liquid Cr ystal Display with an integral Light Emitting D iode (LED)
backlight system. The matrix employs a-Si Thin Film Transistor as the active ele ment. 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 r esolution(768 ve rtical by 1366 horizontal p ixel arra y). Each pixel is divided into
Red, Green and Blue sub-pixels or dots which are arranged in vertical s tripes. Gra y sca le 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

LVDS

1port

40

VCC

Pin

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VLED

LED_EN

PWM

General Features

EEPROM Block

EEPROM Block

for EDID

for EDID

Timing Control

Timing Control

(Tcon) Block

(Tcon) Block

DVCC

Power

Power

Block

Block

LED Driver

LED Driver

Block

Block

TCLKs

M

i

n

i

-

L

V

DVCC, AVDD

VGH, VGL, GMA

GIP CLKs, DSC

VOUT_LED

FB

Control & Data Power

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/m
Total 4.7W (Typ.) @ LCM circuit 1.5 W (Typ.), B/L input 3.2 W (Typ.)Power Consumption
450g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Hard Coating(3H), Glare treatment of the front polarizerSurface Treatment

YesRoHS Compliance
Yes for allBFR / PVC / As Free

2

(Typ.5 point)Luminance, White

1

1366

TFT-LCD Panel

(HD, DRD, TN)

D

S

768

Source Driver
(Bottom Bent)

LED Backlight Ass’y

EDID signal & Power

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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

60

Values

Units

MaxMin

90% 80%

60%

Humidity[(%)RH]

Storage

40%

Operation

20%

10%

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

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Wet Bulb
Temperature [℃]

20

10

0

Symbol

°C Max, and no condensation of water.

50

40

30

at 25 ± 5°CVdc4.0-0.3VCC

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

-20

Ver. 1.0 Mar. 02, 2010

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

Parameter Symbol

LOGIC :

BACKLIGHT : ( without LED Driver)

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PWM High Level Voltage
PWM Low Level Voltage

LED_EN High Voltage
LED_EN Low Voltage

CCPower Supply Input Voltage

CCPower Supply Input Current

I

CCPower Consumption

CC_PPower Supply Inrush Current

LEDLED Power Input Voltage

LEDLED Power Input Current

LEDLED Power Consumption

LED_PLED Power Inrush Current

PWMPWM Impedance
PWMPWM Frequency

PWM_H
PWM_L

LED_ENLED_EN Impedance

LED_EN_H
LED_EN_L

Values

MaxTypMin

11010090ZLVDSLVDS Impedance

kΩ604020Z

kΩ604020Z

NotesUnit

1V3.63.33.0V
2mA515445­2W1.71.5-P
3mA1500--I

Ω

V5.3-3.0V
V0.5-0V

V5.3-3.0V

V0.5-0V

4

5V20.012.07.0V
6mA-265-I
6W3.53.2-P
7mA1500--I
8%100-5-PWM Duty Ratio
9%0.3-0-PWM Jitter

10Hz1000-200F

11Hrs--15,000Life Time

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 whereas Mosaic pattern
is displayed and fv is the frame frequency.

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Product Specification

3. Electrical Specifications

3. 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.

LP156WH2

Liquid Crystal Display

Rising time
Vcc

0V

4. This impedance value is needed to proper display and measured form LVDS Tx to the mating connector.

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

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

Max luminance whereas White pattern is displayed and fv is the frame frequency.

7. The below figures are the measuring V

and the V

LED control block is same with Vcc control block.

V

90%

10%

0.5ms

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LED control block LGD used.

3.3V

LED condition

Rising time
V

LED

0V

10%

LED = 12.0V , 25℃, Dimming of

12.0V

90%

0.5ms

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

9. If Jitter of PWM is bigger than maximum. It may cause flickering.

10. 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.

11. The life time is determined as the time at which the typical brightness of LCD is 50% compare to that of

initial value at the typical LED current. These LED backlight has 4 strings on it and the typical current

of LED’s string is base on 21mA.

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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

0-8

IN

IN

IN

IN

IN

IN

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NC No Connection21

Negative LVDS differential data inputOdd_R

0+9

Positive LVDS differential data inputOdd_R
GroundGND10

1-11

Negative LVDS differential data inputOdd_R
Positive LVDS differential data inputOdd_R

1+12

GroundGND13

2-14

Negative LVDS differential data inputOdd_R

2+15

Positive LVDS differential data inputOdd_R
GroundGND16
Negative LVDS differential clock inputOdd_CLKIN-17
Positive LVDS differential clock inputOdd_CLKIN+18
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, SW0633 (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

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

2.3 Connector pin arrangement

40

or its compatibles
or equivalent.

1

[LCD Module Rear View]

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Product Specification

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

LVDS Clock to Data Skew Margin

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Symb

ol

ID

CM

IN

SKEW

SKEW

NotesUnitMaxMin

|LVDS Differential Voltage

85MHz > Fclk ≥

65MHz > Fclk ≥

- 600

ps+ 400- 400t

ps+ 600t

-mV600100|V

-V1.80.6V

-V2.10.3V

NotesUnitMaxMinSymbolDescription

65MHz

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 Mar. 02, 2010

SKEW_EO

DEV

MOD

-1/7

+ 1/7t

T

clk

%± 3-F

KHz200-F

-

-

-

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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+/-

RD+/-

R3 R2

G4 G3

B5 B4

G7 G6

R1 R0

G2 G1

B3 B2

R7 R6

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

X B7 B6 G7 G6 R7 R6

Time

G0

B1

DE

VSYNC HSYNC

X

R5 R4

B0 G5

B7 B6

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

< LVDS Data Format >

Ver. 1.0 Mar. 02, 2010

Current (Nth) Cycle

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