LG LP-156WH3-TLL1 Service manual

()Preliminary Specification

S. S. H

(

) Final Specification

◆

Title 15.6” HD TFT LCD

LP156WH3

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Customer ACER

MODEL

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SIGNATUREAPPROVED BY

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WH3

Suffix TLL1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

APPROVED BY

N. J. Seong / Manager

REVIEWED BY

REVIEWED BY

an / Engineer

PREPARED BYPREPARED BY

H. S. Kim / Engineer

M. S. Yeom / Engineer

SIGNATURE

SIGNATURE

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

Ver. 1.0 Mar. 11, 2010

Products Engineering Dept.

LG Display Co., Ltd

1/ 28

Product Specification

GENERAL DESCRIPTION

LVDS SIGNAL TIMING SPECIFICATION

OPTICAL SFECIFICATIONS

7-2

EMC

9

PRECAUTIONS

Contents

LP156WH3

Liquid Crystal Display

No ITEM

COVER

CONTENTS

RECORD OF REVISIONS

1

2

3

4

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS

ELECTRICAL CHARACTREISTICS

3-1

INTERFACE CONNECTIONS

3-2

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

Page

1

2

3

4

5

6-7

8

9-10

11

11

12

13

14-16

5

6 RELIABLITY

7 INTERNATIONAL STANDARDS

8 PACKING

Ver. 1.0 Mar. 11, 2010

MECHANICAL CHARACTERISTICS

7-1 SAFETY

7-3 Environment

8-1 DESIGNATION OF LOT MARK

8-2 PACKING FORM

A APPENDIX. Enhanced Extended Display Identification Data

17-20

21

22

22

22

23

23

24-25

26-28

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Product Specification

9

Ch

LVDS Si

ificati

6

Update the Electrical Characteristics Spec. (Power Consumption)

18-19

Update Front & Rear View

RECORD OF REVISIONS

LP156WH3

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Sep. 24. 2009 - First Draft (Preliminary Specification) -

6 Update the Electrical Characteristics Spec.

ange the

0.1 Nov. 17. 2009 -

0.2 Dec. 01. 2009

0.3 Jan. 14. 2010

0.4 Jan. 25. 2010

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1.0 Mar. 10.. 2010

13 Update the Power Sequence timing

17 Add detail outline dimension with Bracket and PCB Board

20 Add LED Block Diagram

6 Update the Electrical Characteristics. (Power Consumption)

26~28 Update EEDID Table

8 Change the Pin Configuration (#19 : Ground → No Connection)

11 Update Signal Timing Specifications

14 Update Color Coordinates

15

26~28 Update EEDID Table ( Dclk : 75.1MHz  74.85MHz )

26~28 Update EEDID Table ( Check Sum : 97  94 )

Update Gray scale specification

gnal Timing DC spec

ons

EDID

ver

0.1

0.1

0.2

1.023 Update Packing Form (30  20)

Ver. 1.0 Mar. 11, 2010

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LP156WH3

U

U

(Bottom)

Weight

420g (Max.)

Liquid Crystal Display

Product Specification

1. General Description

The LP156WH3 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 15.6 inches diagonally measured active display area with HD
resolution (1366 horizontal by 768 vertical 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 LP156WH3 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WH3 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 sub­pixels, the LP156WH3 characteristics provide an excellent flat display for office automation products such
as Notebook PC.

EEPROM Block

for EDID

EEPROM Block

for Tcon Operating

ser connector

LVDS

1port

40

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Pin

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VCC

VLED

LED_EN

PWM

Control & Data Power

Timing Control

(Tcon) Block

DVCC

Power

Block

LED Driver

Block

TCLKs

DVCC, AVDD

VGH, VGL, GMA

GIP CLKs, DSC

VOUT_LED

FB1~6

1

TFT-LCD Panel

(HD, GIP, TN)

768

Source Driver

LED Backlight Ass’y

EDID signal & Power

General Features

Active Screen Size 15.6 inches diagonal

Outline Dimension

Pixel Pitch 0.252mm X 0.252 mm

Pixel Format 1366 horiz. by 768 vert. Pixels RGB strip arrangement

Color Depth 6-bit, 262,144 colors

Luminance, White 200 cd/m

Power Consumption Total 3.0W(Typ.) Logic : 0.7 (Typ.@ White), B/L : 2.3W (Typ.@ V

359.5(H, Typ.) × 223.4(V, Typ.) × 3.8(D, Max.) [mm] (with Bracket & PCB Board)

2

(Typ.)

1366

LED

19V)

Display Operating Mode Transmissive mode, normally white

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

RoHS Compliance Yes

BFR / PVC / As Free Yes for all

Ver. 1.0 Mar. 11, 2010

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LP156WH3

10

%

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 Symbol

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

VCC -0.3 4.0 Vdc at 25  5C

TOP 050C1

HST -20 60 C1

HOP 10 90 %RH 1

HST 10 90 %RH 1

C Max, and no condensation of water.

50

40

30

Values

Min Max

90% 80%

60

Units Notes

60%

Humidity[(%)RH]

Storage

40%

Operation

20%

-20

Ver. 1.0 Mar. 11, 2010

10

20 30 40 50

Dry Bulb Temperature [℃]

60 70 800

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LP156WH3

6

PWM Impedance

Z

PWM

204060

kΩ

LED_EN Low Voltage

V

LED_EN_L

0-0.3

V

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WH3 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 :

Power Supply Input Voltage V

Power Supply Input Current

Power Consumption

Power Supply Inrush Current ICC_P - - 1500 mA 3

LVDS Impedance Z

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage V

LED Power Input Current I

LED Power Consumption PLED W100nits - 1.2 -

LED Power Inrush Current I

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Black

White - 215 245

Black

White - 0.7 0.8

60nits - 0.8 -

Max - 2.3 2.6

CC 3.0 3.3 3.6 V 1

I

CC

CC

P

LVDS 90 100 110 Ω 4

LED 7.0 19.0 21.0 V 5

LED - 120 135 mA

LED_P - - 1000 mA 7

Min Typ Max

- 380 435

Values

Unit Notes

mA

1.2 1.4
W

2

PWM Duty Ratio 5 - 100 % 8

PWM Jitter

PWM Frequency FPWM 700 1000 2000 Hz 10

PWM High Level Voltage V

PWM Low Level Voltage V

LED_EN Impedance Z

LED_EN High Voltage V

DBC_EN High Voltage 3.0 - 3.6 V

DBC_EN Low Voltage 0 - 0.3 V

Life Time 12,000 - - Hrs 11

Ver. 1.0 Mar. 11, 2010

-

PWM_H

PWM_L

PWM 20 40 60 kΩ

LED_EN_H 3.0 - 3.6 V

0-0.2%9

3.0 - 3.6 V

0-0.3V

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Liquid Crystal Display

White Pattern

Black Pattern

3.3V

%

g

gg

%

g

gg , y g

Product Specification

Note)

1. The measuring position is the connector of LCM and the test conditions are under 25℃, fv = 60Hz.

2. The specified Icc current and power consumption are under the Vcc = 3.3V , 25℃, fv = 60Hz condition.

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 as the minimum of T1 at Power on sequence.

LP156WH3

Rising time
Vcc

0V

5. This impedance value is needed for 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 and White pattern with the normal frame frequency operated(60Hz).

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.

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

10. If Jitter of PWM is bi

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 sum of the continuous operation time at which brightness of LCD at the

typical LED current is 50% compare to that of minimum value specified in table 7 under general user condition.

90%

10%

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0.5ms

Risin
VLED

0V

er than maximum, it may induce flickering.

time

10%

12.0V

90

0.1ms

Ver. 1.0 Mar. 11, 2010

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LP156WH3

11

ORX1

N

LVDS diff

19NCNo Connection

36

LED_EN

LED Backlight On/Off [Note 1]

Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs two interface connections, a 40 pin connector used for the module electronics interface and
the other connector used for the integral backlight system.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

Pin Symbol Description Notes

1 NC No Connection

2 VCC LCD Logic and driver power (3.3V Typ.)

3 VCC LCD Logic and driver power (3.3V Typ.)

4 V EEDID DDC Power (3.3V)

5 NC No Connection

6 Clk EEDID DDC Clock

7 DATA EEDID DDC Data

8 ORX0- Negative LVDS differential data input

9 ORX0+ Positive LVDS differential data input

10 GND High Speed Ground

-

12 ORX1+ Positive LVDS differential data input

13 GND High Speed Ground

14 ORX2- Negative LVDS differential data input

15 ORX2+ Positive LVDS differential data input

16 GND High Speed Ground

17 ORXC- Negative LVDS differential clock input

18 ORXC+ Positive LVDS differential clock input

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egative

erential data input

[Interface Chip]

1. LCD :
SiW, SW0641(LCD Controller)
Including LVDS Receiver.

2. System : SiW LVDSRx or equivalent

* Pin to Pin compatible with LVDS

[Connector]

UJU IS050-L40B-C10
LSMtron GT05Q-40S-H10 or equivalent

[Mating Connector]

20345-#40E-## series or equivalent

[Connector pin arrangement]

40

1

20

21

19 GND High Speed Ground

23

24

19 GND High Speed Ground

26

27

19 GND High Speed Ground

29

30

31

32

33

34

35

37 DBC_EN Dynamic Backlight Control enable

38

39

40

Ver. 1.0 Mar. 11, 2010

NC

NC

NC

NC

NC

NC

NC

NC
GND LED Backlight Ground

GND LED Backlight Ground

GND LED Backlight Ground

NC

PWM System PWM Signal input for dimming

VLED LED Backlight Power (7V-21V)

VLED LED Backlight Power (7V-21V)

VLED LED Backlight Power (7V-21V)

No Connection

No Connection

No Connection

No Connection

No Connection

No Connection

No Connection

No Connection

No Connection

[LCD Module Rear View]

[Note 1]

LED EN : 3.0 ~ 3.6V

LED OFF : 0 ~ 0.3V

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Product Specification

F

±

3

%

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

Description Symbol Min Typ Max Unit Notes

LP156WH3

Liquid Crystal Display

VDD=1.8V

LVDS Differential Voltage |V

LVDS Common mode Voltage V

LVDS Input Voltage Range V

3-3-2. AC Specification

LVDS Clock to Data Skew Margin

LVDS Clock to Clock Skew Margin (Even
to Odd)

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Description Symbol Min Max Unit Notes

| 100 - 600 mV -

ID

CM

IN

|VID| /2 1.2 VDD- |VID|/2 V -

0.3 - VDD V -

t

SKEW

t

SKEW

t

SKEW_EO

- 400 + 400 ps

- 600 + 600 ps

-1/7 + 1/7 T

clk

85MHz > Fclk ≥

65MHz

65MHz > Fclk ≥

25MHz

-

Maximum deviation
of input clock frequency during SSC

Maximum modulation frequency
of input clock during SSC

Ver. 1.0 Mar. 11, 2010

F

DEV

MOD

-

- 200 KHz -

-

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