LG LP-156WH1-TLB1 Service manual

Product Specification

SPECIFICATION

LP156WH1

Liquid Crystal Display

FOR

APPROVAL

◆

)

(
(

Preliminary Specification

)

Final Specification

MODEL

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15.6” HD TFT LCDTitle

DellCustomer

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

LG.Philips LCD Co., Ltd.SUPPLIER
LP156WH1*MODEL
TLB1Suffix

SIGNATUREAPPROVED BY

/

/

/

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

Ver. 0.3 Aug. 08, 2008

APPROVED BY

APPROVED BY

K. S. Kwon / S.Manager

K. S. Kwon / S.Manager

REVIEWED BY

REVIEWED BY

J. H. Park / Manager

J. H. Park / Manager

PREPARED BY

PREPARED BY

B. T. Jang / Engineer

S. H. Ahn / Engineer

Products Engineering Dept.

LG Display Co., Ltd

SIGNATURE

SIGNATURE

1 / 31

Product Specification

Contents

LP156WH1

Liquid Crystal Display

ITEMNo

COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION1
ABSOLUTE MAXIMUM RATINGS2

ELECTRICAL SPECIFICATIONS3
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 SFECIFICATIONS4

Page

1
2
3
4
5

6-7

8

9-10

11
11
12
13

14-16

MECHANICAL CHARACTERISTICS5
APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN A
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY 7-1
EMC 7-2
PACKING8
DESIGNATION OF LOT MARK 8-1
PACKING FORM 8-2
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A

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17-20
21-23

24

25
25

26

26
27-28
29-31

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Product Specification

RECORD OF REVISIONS

LP156WH1

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)-Jun. 07. 20080.0

Change Rear View Drawing (Label Modification)

19Jul. 24. 20080.2

Change Source Cover Shield (Printed)

Change EDID Data29-31

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EDID

ver

0.0

0.0 Change Rear View Drawing (Label Modification)19Jul. 11. 20080.1

0.0

0.1 Add Color Coordinate Specification14Aug. 08. 20080.3

Ver. 0.3 Aug. 08, 2008

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LP156WH1

Liquid Crystal Display

Product Specification

1. General Description

The LP156WH1 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent
Lamp (CCFL) 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 LP156WH1 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP156WH1 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
LP156WH1 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

CN1 User connector 30 Pin

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CN

General Features

LVDS &

Timing

Control

Block

POWE

R

BLOCK

EDID

BLOCK

Control & Data Power EDID signal & Power

15.6 inches diagonal Active Screen Size

359.3(H, typ) × 209.5(V, typ) × 6.4(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
220 cd/m2(Typ.5 point)Luminance, White
Total 5.75 Watt(Typ.) @ LCM circuit 1.3 Watt(Typ.), B/L input 4.45 Watt(Typ.)Power Consumption

550g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Hard Coating(3H), Anti-Glare treatment of the front polarizerSurface Treatment

YesRoHS Comply

1

GIP(Gate In Panel)

768

Source Driver Circuit

1

TFT-LCD Panel

(1366 X 768)

Backlight Ass’y

1366

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LP156WH1

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. 0.3 Aug. 08, 2008

10

20 30 40 50

Dry Bulb Temperature [℃]

60 70 800

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LP156WH1

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WH1 requires two power inputs. One is employed to power the LCD electronics and to drive the

TFT array and liquid crystal. The second input which powers the CCFL, is typically generated by an

inverter. The inverter is an external unit to the LCD.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

Power Supply Input Current

LAMP :
Operating Voltage
Operating Current
Power Consumption
Operating Frequency

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Established Starting Voltage
at 25℃
at 0 ℃

Note)

1. The specified 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.

I

Vs

CC

BL

BL

BL

BL

Values

MaxTypMin

3.63.33.0VCC Power Supply Input Voltage

870(3.0mA)685(6.5mA)660(7.0mA)V

7.06.53.0I

4.94.45-P

1300
1500

V

V

kHz706040f

V
V

NotesUnit

DC

RMS

RMS

RMS
RMS

1mA455390­1Watt1.51.3-Pc Power Consumption
2Ohm11010090Zm Differential Impedance

3mA

4Min3--Ts Discharge Stabilization Time
5Hrs--15,000 Life Time

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

3. The typical operating current is for the typical surface luminance (LWH) in optical characteristics.

4. Define the brightness of the lamp after being lighted for 5 minutes as 100%, Ts is the time required for
the brightness of the center of the lamp to be not less than 95%.

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LP156WH1

Liquid Crystal Display

Product Specification

Note)

5. The life time is determined as the time at which brightness of lamp is 50% compare to that of initial value
at the typical lamp current.

6. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform.(Asymmetrical ratio is less than 10%) Please do not use the inverter
which has asymmetrical voltage and asymmetrical current and spike wave.
Lamp frequency may produce interface with horizontal synchronous frequency and as a result this may
cause beat on the display. Therefore lamp frequency shall be as away possible from the
horizontal synchronous frequency and from its harmonics in order to prevent interference.

7. It is defined the brightness of the lamp after being lighted for 5 minutes as 100%.
TS is the time required for the brightness of the center of the lamp to be not less than 95%.

8. The lamp power consumption shown above does not include loss of external inverter.
The applied lamp current is a typical one.

9. Requirements for a system inverter design, which is intended to have a better display performance, a
better power efficiency and a more reliable lamp, are following.
It shall help increase the lamp lifetime and reduce leakage current.
a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2 ±10%.
* Inverter output waveform had better be more similar to ideal sine wave.

* Asymmetry rate:

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10. Inverter open voltage must be more than lamp voltage for more than 1 second for start-up.
Otherwise, the lamps may not be turned on.
※ Do not attach a conducting tape to lamp connecting wire.
If the lamp wire attach to a conducting tape, TFT-LCD Module has a low luminance and the inverter
has abnormal action. Because leakage current is occurred between lamp wire and conducting tape.
Ex of current wave)

Normal current wave

- Standard

I p

I -p

Abnormal current wave

- Bad

| I p – I –p | / I
* Distortion rate
I p (or I –p) / I

Abnormal current wave

- Bad

* 100%

rms

rms

Abnormal current wave

- Bad

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LP156WH1

Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs two interface connections, a 30 pin connector is used for the module electronics interface
and the other connector is used for the integral backlight system.
The electronics interface connector is a model FI-XB30SRL-HF11 manufactured by JAE.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

GroundGND1
Power Supply, 3.3V Typ.VCC2
Power Supply, 3.3V Typ.VCC3
DDC 3.3V powerV EEDID4
Built-In Self TestBIST5
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

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NC No Connection21

Positive LVDS differential clock inputOdd_CLKIN+18
GroundGND19
No ConnectionNC20

No ConnectionNC22
No ConnectionNC23
No ConnectionNC24
No ConnectionNC25
No ConnectionNC26
No ConnectionNC27
No ConnectionNC28
No ConnectionNC29
No ConnectionNC30

The backlight interface connector is a model BHSR-02VS-1, manufactured by JST or Compatible.
The mating connector part number is AMP1674817-2 or equivalent.

Table 4. BACKLIGHT CONNECTOR PIN CONFIGURATION (J3)

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 :FI-XB30SRL-HF11 ,JAE
or its compatibles

2.2 Mating : FI-X30M or equivalent.

2.3 Connector pin arrangement

30

[LCD Module Rear View]

PIN1

PIN2PIN2

1

NotesDescriptionSymbolPin

1Power supply for lamp (High voltage side)HV1
1Power supply for lamp (Low voltage side)LV2

Notes : 1. The high voltage side terminal is colored Pink and the low voltage side terminal is Green.

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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

LP156WH1

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. 0.3 Aug. 08, 2008

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 >

LP156WH1

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. 0.3 Aug. 08, 2008

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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