LG LP-140WH2-TLQ1 Service manual

LP140WH2

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(

(

Preliminary Specification

)

Final Specification

◆

14.0” HD TFT LCDTitle

Customer

MODEL

*When you obtain standard approval,

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SIGNATUREAPPROVED BY

/

/

/

please use the above model name without suffix

APPROVED BY

APPROVED BY

N. J. Seong / Manager

REVIEWED BY

REVIEWED BY

S. S. Han / Engineer

PREPARED BY

PREPARED BY

H. S. Kim / Engineer

H. S. Jung / Engineer

LG Display Co., Ltd.SUPPLIER

LP140WH2*MODEL

TLQ1Suffix

SIGNATURE

SIGNATURE

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

Ver. 1.0 Apr. 05, 2010

Products Engineering Dept.

LG Display Co., Ltd

1 / 27

Product Specification

Contents

LP140WH2

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

3-4

SIGNAL TIMING WAVEFORMS

3-5

COLOR INPUT DATA REFERNECE

3-6

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POWER SEQUENCE

3-7

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OPTICAL SFECIFICATIONS

Page

1

2

3

4

5

6-7

8

9-10

11

11

12

13

14-16

5

Ver. 1.0 Apr. 05, 2010

MECHANICAL CHARACTERISTICS

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

17-19

20

21

21

21

22

22

23-24

25-27

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LP140WH2

Liquid Crystal Display

Product Specification

1. General Description

The LP140WH2 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 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 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 LP140WH2 has been designed to apply the interface method that enables low power, high speed, low
EMI.

The LP140WH2 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
LP140WH2 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

EEPROM Block

EEPROM Block

for EDID

for EDID

EEPROM Block

EEPROM Block

User connector

for Tcon Operating

for Tcon Operating

1

1366

LVDS

1port

40

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Pin

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VCC

VLED

LED_EN

PWM

Control & Data Power

General Features

Luminance, White

Timing Control

Timing Control

(Tcon) Block

(Tcon) Block

DVCC

Power

Block

LED Driver

LED Driver

Block

14.0 inches diagonal Active Screen Size

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 4.3 W(Typ.) Logic : 1.3 W (Typ.@ Mosaic), B/L : 3.0 W (Typ.@ VLED 12V )Power Consumption

310g (Typ.), 320g (Max.)Weight

Transmissive mode, normally whiteDisplay Operating Mode

Glare treatment (3H) of the front Polarizer (Reflectivity 4.5%)Surface Treatment

YesRoHS Comply

Yes all. BFR / PVC / As Free

TCLKs

Power

Block

Block

TFT-LCD Panel

(HD, DRD, TN)

M

i

n

i

-

L

V

D

S

AVCC, AVDD

VGH, VGL, GMA

GIP CLKs, DSC

VOUT_LED

FB1~6

768

Source Driver

(Bottom)

LED Backlight Ass’y

EDID signal & Power

2

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LP140WH2

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

90% 80%

MaxMin

60

40

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°CMax, and no condensation of water.

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Wet Bulb
Temperature [

20

10

0

℃℃℃℃

Symbol

OP

ST

OP

ST

50

]

40

30

Units

Humidity[(%)RH]

Storage

Operation

at 25 ± 5°CVdc4.0-0.3VCC

1°C500T

1°C60-20H

1%RH9010H

1%RH9010H

-20

Ver. 1.0 Apr. 05, 2010

10

20 30 40 50

Dry Bulb Temperature [

℃℃℃℃

60 70 800

]

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LP140WH2

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP140WH2 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

LOGIC :

Power Supply Input Voltage

Power Supply Input Current

Power Consumption

Power Supply Inrush Current

LVDS Impedance

EDID Input Voltage

EDID Input Current

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage

LED Power Input Current

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Mosaic

Black

PWM

Duty

(I

LED

)

SymbolParameter

CC_max

CC_P

LVDS

EDID

EDID

CC

CC

CC

LED

Values

MaxTypMin

11010090Z

290250210100%

15013011050%

2520106%

Ω

V3.63.33.0V

NotesUnit

1V3.63.33.0V

2mA450390330I

3mA535465395I

2W1.51.31.1P

4mA1500--I

5

6mA10--I

7V20.012.07.0V

8mA

LED Power Consumption

LED Power Inrush Current

PWM Jitter

PWM Impedance

PWM Frequency

PWM High Level Voltage

PWM Low Level Voltage

LED_EN Impedance

LED_EN High Voltage

LED_EN Low Voltage

Ver. 1.0 Apr. 05, 2010

LED

LED_P

-

PWM

PWM

PWM_H

PWM_L

PWM

LED_EN_H

LED_EN_L

8W3.53.0-P

9mA1000--I

10%100-6PWM Duty Ratio

11%0.3-0

k

604020Z

604020Z

Ω

12Hz1000-200F

V5.3-3.0V

V0.5-0V

k

Ω

V5.3-3.0V

V0.5-0V

13Hrs--12,000Life Time

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

(Max current pattern is Black.)

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.

LP140WH2

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 specified I

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

8. The current and power consumption with LED Driver are under the Vled = 12.0V , 25℃, Dimming of
100%, 50%, 6% luminance whereas White pattern is displayed and fv is the frame frequency.

9. 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%

0.5ms

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EDID

current are under the Vcc = 3.3V @ frequency = 330Khz condition.

3.3V

Rising time
V

LED

0V

10%

12.0V

90%

0.5ms

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

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

12. 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.

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

value at Table 7. These LED backlight has 6 strings on it and the typical current of LED’s string is base
on typical current at Table 7.

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LP140WH2

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 IS050-L40B-C10 manufactured by UJU.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

No connectionNC1

Power Supply, 3.3V Typ.VCC2

Power Supply, 3.3V Typ.VCC3

35

36

DDC 3.3V powerV EEDID4

No ConnectionNC5

DDC ClockClk EEDID6

DDC DataDATA EEDID7

Negative LVDS differential data inputOdd_RIN0-8

Positive LVDS differential data inputOdd_RIN0+9

GroundGND10

Negative LVDS differential data inputOdd_RIN1-11

Positive LVDS differential data inputOdd_RIN1+12

GroundGND13

Negative LVDS differential data inputOdd_RIN2-14

Positive LVDS differential data inputOdd_RIN2+15

GroundGND16

Negative LVDS differential clock inputOdd_CLKIN-17

Positive LVDS differential clock inputOdd_CLKIN+18

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NC No Connection21

PWM

LED_EN

Color Engine enable (Note3)CE_EN19

No ConnectionNC20

GroundGND22

No ConnectionNC23

No ConnectionNC24

GroundGND25

No ConnectionNC26

No ConnectionNC27

GroundGND28

No ConnectionNC29

No ConnectionNC30

LED GroundGND31

LED GroundGND32

LED GroundGND33

No ConnectionNC34

PWM for Luminance control (Note1)

Backlight On/Off Control (Note2)

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 : IS050-L40B-C10, UJU

or equivalent

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

or equivalent

2.3 Connector pin arrangement

140

[Note 1]

If PWM Duty is changed.

Brightness can be changed.

-PWM Duty spec. : 200Hz ~1KHz

-PWM High Level : 3 ~ 5.3V

-PWM Low Level : 0 ~ 0.5V

[Note 2]

LED EN : 3 ~ 5.3V

LED OFF : 0 ~ 0.5V

[Note 3]

CE_EN : 3V ~ 3.6V

CE OFF : 0 ~ 0.8V

Ver. 1.0 Apr. 05, 2010

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