LG LP-140WH1-TLA1 Service manual

Product Specification

SPECIFICATION

LP140WH1

Liquid Crystal Display

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

MODEL

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14.0”W HD TFT LCDTitle

ACERCustomer

*When you obtain standard approval,

www.jxlcd.com

please use the above model name without suffix

LG Display Co., Ltd.SUPPLIER

LP140WH1*MODEL

TLA1Suffix

SIGNATUREAPPROVED BY

/

/

/

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

Ver. 1.0 Oct. 17, 2008

APPROVED BY

APPROVED BY

K. S. Kwon / S.Manager

K. S. Kwon / S.Manager

REVIEWED BY

REVIEWED BY

C. I. Kim / Manager

PREPARED BY

PREPARED BY

J. W. Kim / Engineer
Y. S. Kim / Engineer

Products Engineering Dept.

LG Display Co., Ltd

SIGNATURE

SIGNATURE

1 / 33

Product Specification

Contents

LP140WH1

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

9
10
11
12

13-16

MECHANICAL CHARACTERISTICS5
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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17-25

26

27
27

28
28

29-30
31-33

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Product Specification

RECORD OF REVISIONS

LP140WH1

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)-Jun. 17. 20080.0
CN1 Pin #1 update (GROUND → NC)7Aug. 13, 20080.1
Rear view update18Aug. 14, 20080.2
Rear view drawing update18,19Aug. 25, 20080.3

Update color coordinates spec.13
Update Gray scale spec.14
Insert Viewing Angle description page.16
Update Rear view Drawing19
Update color coordinates EDID data (Ver. 0.0 → 0.1)27

29

Change EDID Checksum (E4 → EC)

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EDID

ver

0.0

0.1 Update ELECTRICAL CHARACTERISTICS6Sep. 26, 20080.4

1.0 Final Draft-Oct. 17, 20081.0

Ver. 1.0 Oct. 17, 2008

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LP140WH1

Liquid Crystal Display

Product Specification

1. General Description

The LP140WH1 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 14.0 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 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 LP140WH1 has been designed to apply the interface method that enables low power, high speed, low
EMI.
The LP140WH1 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
LP140WH1 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

CN2
9Pin

CN1 User connector 40 Pin

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General Features

FPC

EDID

BLOCK

POWER

BLOCK

LVDS &

Timing

Control

Block

Control & Data Power EDID signal & Power

14.0 inches diagonal Active Screen Size

323.5(H, typ) × 192.0(V, typ) × 5.2(D,max) [mm]Outline Dimension

0.2265mm × 0.2265 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 4.5 Watt(Typ.) @ LCM circuit 1.4 Watt(Typ.), B/L input 3.1 Watt(Typ.)Power Consumption

350g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Hard Coating(3H), Glare treatment of the front polarizerSurface Treatment

YesRoHS Comply

1

GIP(Gate In Panel)

768

1

WLED Ass’y(48ea)

TFT-LCD Panel

(1366 X 768)

Source Driver Circuit

1366

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LP140WH1

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 Oct. 17, 2008

10

20 30 40 50

Dry Bulb Temperature [℃]

60 70 800

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LP140WH1

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP140WH1 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 LED BL.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

MODULE :

Power Supply Input Current

LED Backlight ( With LED Driver )
Operating Current per string
Power Consumption

PWM Input Signal
Frequency
On Duty
Voltage Level
LED_EN
Voltage Level

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I

CC

LED

LED

PWM

on

PWM

LED_EN

Values

MaxTypMin

3.63.33.0VCC Power Supply Input Voltage

V

mA1500Irush Inrush Current

Hz1000120F

%3D

NotesUnit

DC

1mA495430­1Watt1.61.4-Pc Power Consumption
2Ohm11010090Zm Differential Impedance

3mA-20-I
4Watt3.93.6-P
5Hrs--12,000 Life Time

V207.0VLED

V2.9V

V2.9V

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.

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.
I

4. The LED power consumption shown above includes power of internal LED driver circuit for typical current
condition.

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

is the current of each LED’s string, LED backlight has 6 strings on it.

LED

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LP140WH1

Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs two interface connections, a 40 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 CABLINE-VS RECE ASS’Y manufactured by I-PEX.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

ReservedNC1
Power Supply, 3.3V Typ.VCC2

31
32
33
34
35
36
37
38
39
40

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

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NC No Connection21

Positive LVDS differential clock inputOdd_CLKIN+18
GroundGND19
No ConnectionNC20

GroundGND19
No ConnectionNC23
No ConnectionNC24
GroundGND19
No ConnectionNC26
No ConnectionNC27
GroundGND19
No ConnectionNC29
No ConnectionNC30
LED GroundVLED_GND
LED GroundVLED_GND
LED GroundVLED_GND
Reserved NC
PWM for luminance control(200Hz ~ 1000Hz)PWM
Backlight On/Off ControlLED_EN
No Connection (Reserved)NC
LED Power Supply (7V-20V)VLED
LED Power Supply (7V-20V)VLED
LED Power Supply (7V-20V)VLED

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 : CABLINE-VS RECE ASS’Y, I-PEX
or its compatibles

2.2 Mating : CABLINE-VS PLUG CABLE
ASS’Y or equivalent.

2.3 Connector pin arrangement

40

[LCD Module Rear View]

3, Pin connection for LED IC

1.1 Pin #35 should not connect with Pin #36.

1

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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

LP140WH1

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 Oct. 17, 2008

SKEW_EO

DEV

MOD

- 1/7

+ 1/7t

T

clk

%± 3-F

KHz200-F

-

-

-

8 / 33

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 >

LP140WH1

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 Oct. 17, 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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LP140WH1

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

NoteUnitMaxTypMinSymbolITEM

FrequencyDCLK

Period

Hsync

Vsync

Horizontal back porch

Data

Enable

3-5. Signal Timing Waveforms

Horizontal front porch

Vertical back porch

Vertical front porch

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Data Enable, Hsync, Vsync

DCLK

tCLK

0.5 Vcc

f

CLK

t

HP

Width-Active

WHA

Width-Active

WVA

HBP

HFP

t

VBP

t

VFP

High: 0.7VCC

Low: 0.3VCC

-

158615261470

403223tWH Width

136613661366t

801790779tVP Period

852tWV Width

768768768t

1248072t

48488t

20148

531

MHz-72.3

tCLK

tHP

tCLK

tHP

Condition : VCC =3.3V

t

HP

Hsync

t

WH

t

HBP

tWHA

Data Enable

t

VP

t

WV

Vsync

t

VBP

tWVA

Data Enable

Ver. 1.0 Oct. 17, 2008

t

t

HFP

VFP

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