LG LP-156WH2-TPB1 Service manual

LP156WH2

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

15.6” HD TFT LCDTitle

DellCustomer

MODEL

*When you obtain standard approval,

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SIGNATUREAPPROVED BY

/

/

/

please use the above model name without suffix

APPROVED BY

APPROVED BY

H. S. 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

TPB1Suffix

SIGNATURE

SIGNATURE

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

Ver. 1.0 Jan. 26, 2010

Products Engineering Dept.

LG Display Co., Ltd

1 / 32

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

eDP 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

OPTICAL SFECIFICATIONS

Page

1
2
3
4
5

6
8

9
10
10
11
12

13-15

5

Ver. 1.0 Jan. 26, 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

16-19

23

24
24
24

25

26~27

28-29
30-32

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Product Specification

RECORD OF REVISIONS

LP156WH2

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)AllJun. 30, 20090.0

Add PPID Label Revision Code19

Update the Electrical Characteristics.6
Update the Timing Table (Dclk 72.3Mhz → 72.0Mhz : WWAN)10
Update the Label Drawing18-19
Update the LCM Drawing21-22
Add the Packing Information26-27
Update the EDID Data (Checksum: 3C→49)30-32

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EDID

ver

0.0

0.1Updated Rear view (Label)18Aug. 17, 20090.1

0.2Update the EDID Data28-30Nov. 27. 20090.2

1.0Final Specification-Jan. 26. 20101.0

Ver. 1.0 Jan. 26, 2010

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LP156WH2

Liquid Crystal Display

Product Specification

1. General Description

The LP156WH2 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 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 sub­pixels, the LP156WH2 characteristics provide an excellent flat display for office automation products such
as Notebook PC.

User connector

30

Pin

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General Features

VLED

LED_EN

PWM /

SMBUS

eDP

VCC

Control & Data Power

LED Driver

LED Driver

Block

Block

EEPROM Block

EEPROM Block

for Tcon & EDID

for Tcon & EDID

Timing Control

Timing Control

(Tcon) Block

(Tcon) Block

DVCC

Power

Block

TCLKs

Power

Block

15.6 inches diagonal Active Screen Size

359.3(H, Typ.) × 209.5(V, Typ.) × 5.5(D, Max.) mmOutline Dimension

0.252mm X 0.252mmPixel Pitch
1366 horiz. by 768 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
220 cd/m2(Typ., 5 points)Luminance, White
Total 4.9 W(Typ.) Logic : 1.4 W (Typ.@ Mosaic), B/L : 3.5W (Typ. With LED Driver )Power Consumption
470g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-Glare treatment of the front Polarizer Surface Treatment
YesRoHS Compliance

Yes for allBFR / PVC / As Free

VGH, VGL, GMA

VOUT_LED

FB1~4

M

i

n

i

-

L

V

D

S

DVCC, AVDD

GIP CLKs, DSC

1

768

LED Backlight Ass’y

1366

TFT-LCD Panel

(HD, GIP, TN)

Source Driver
(Bottom Bent)

EDID signal & Power

Ver. 1.0 Jan. 26, 2010

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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

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 Jan. 26, 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

Values

NotesUnit

10%0.2-0

11Hz1000-200F

12Hrs--15,000

LOGIC :

Power Supply Input Voltage

MosaicPower Supply Input Current
Power Consumption
Power Supply Inrush Current
LVDS Impedance

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage
LED Power Input Current
LED Power Consumption
LED Power Inrush Current

PWM Jitter
PWM Impedance
PWM Frequency
PWM High Level Voltage
PWM Low Level Voltage
SMBus CLK & Data High Level Voltage
SMBus CLK & Data Low Level Voltage
SMBus CLK Frequency
SMBus Data Setup time
SMBus Data Hold time
SMBus CLK/Data Rising time
SMBus CLK/Data Falling time
Life Time

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SymbolParameter

LED_P

PWM_H
PWM_L

CC

CC

CC

CC_P

LVDS

LED

LED

LED

-

PWM
PWM

SBL_H

SBL_L

SB_C
SBD_S
SBD_H

SB_R

SB_F

-

MaxTypMin

11010090Z

Ω

kΩ604020Z

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

kHz605550F

us--250T
us--300T
us3--T
us3--T

1V3.63.33.0V
2mA485420-I
2W1.61.4-P
3mA2000--I
4

5V21.012.07.0V
6mA315290-I
7W3.83.5-P
8mA2000--I
9%100-5-PWM Duty Ratio

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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 and Mosaic pattern.

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.

LP156WH2

Rising time
Vcc

0V

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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.

90%

10%

0.5ms

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3.3V

Rising time
V

LED

0V

10%

12.0V

90%

0.5ms

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

10. If Jitter of PWM is bigger than maximum, it may induce flickering.

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.

Ver. 1.0 Jan. 26, 2010

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LP156WH2

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.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

1
2
3
4
5
6
7
8

9
10
11
12

VCC

13

VCC

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14
15
16
17
18
19
20
21

GND LED Backlight Ground

22

LED_EN (NC)

23

PWM
24
25
26

VLED
27

VLED
28

VLED
29

VLED
30

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Dell’s Test Loop to 30pinPAID
High Speed (Main Link) GroundGND
Complement Signal-Lane 1 ( No Connection )Lane1_N
True Signal-Main Lane 1 ( No Connection )Lane1_p
High Speed (Main Link) GroundGND
Complement Signal-Lane 0Lane0_N
True Signal-Main Lane 0Lane0_p
High Speed (Main Link) GroundGND
True Signal-Auxiliary ChannelAUX_P
Complement Signal-Auxiliary ChannelAUX_N
High Speed (Main Link) GroundGND
LCD Logic and driver power (3.3V Typ.)
LCD Logic and driver power (3.3V Typ.)
LCD Panel Self Test EnableBIST
GroundGND
GroundGND
HPD signal pinHPD
LED Backlight GroundGND
LED Backlight GroundGND
LED Backlight GroundGND

NO Connect
System PWM Signal input for dimming

Backlight Control ClkSMBUS_CLK
Backlight Control DataSMBUS_DATA

LED Backlight Power (7.0V-21V)
LED Backlight Power (7.0V-21V)
LED Backlight Power (7.0V-21V)
LED Backlight Power (7.0V-21V)

Dell’s Test Loop to 1pinPAID

[Interface Chip]

1. LCD :
IDT, VPP1420 (LCD Controller
Including eDP Receiver.

2. System : TBD or equivalent

* Pin to Pin compatible with eDP

[Connector]

CABLINE-VS RECE ASS’Y, Hirose
or its compatibles

[Mating Connector]

CABLINE-VS PLUG CABLE ASS’Y or
equivalent.

[Connector pin arrangement]

30

[LCD Module Rear View]

1

Ver. 1.0 Jan. 26, 2010

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LP156WH2

Liquid Crystal Display

Product Specification

3-3. eDP Signal Timing Specifications

3-3-1. DC Specification

The VESA Display Port related AC specification is compliant with the VESA Display Port Standard v1.1a.

NotesUnitMaxMinSymbolDescription

Differential peak-to-peak Input voltage

Rx DC common mode voltage

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VDIFF p-p

CM

-120
mV

For high bit rate

For reduced bit rate-40

-V2.00V

3-3-2. AC Specification

The VESA Display Port related AC specification is compliant with the VESA Display Port Standard v1.1a.

Unit Interval for high bit rate
(2.7Gbps/lane)

Unit Interval for high bit rate
(1.62Gbps/lane)

Lane-to-Lane skew

V Rx-SKEW­INTER_PAIR

Typ

370

-

617

-

-

Range is nominal ±350ppm.

ps-UI_High_Rate

DisplayPort Link Rx does not
require local crystal for link
clock generation

ps-UI_Low_Rate

-

ps5200-

NotesUnitMaxMinSymbolDescription

Lane intra-pair skew

Ver. 1.0 Jan. 26, 2010

V Rx-SKEW­INTRA_PAIR

-

For high bit rate

ps100-

For reduced bit rateps300--

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LP156WH2

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 eDP Tx/Rx for its proper operation.

Table 4. TIMING TABLE

NoteUnitMaxTypMinSymbolITEM

FrequencyDCLK

Period

Hsync

Vsync

Data

Enable

3-5. Signal Timing Waveforms

Width

Width-Active

Period

Width

Width-Active

Horizontal back porch

Horizontal front porch

Vertical back porch

Vertical front porch

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Data Enable, Hsync, Vsync

t

DCLK

CLK

0.5 Vcc

CLK

t

HP

WH

WHA

VP

WV

WVA

HBP

HFP

VBP

t

VFP

High: 0.7VCC

Low: 0.3VCC

MHz-72.0-f

158615201470

403223t

136613661366t

801790779t

852t

768768768t

1247472t

48488t

20148t

531

tCLK

tHP

tCLK

tHP

Condition : VCC =3.3V

t

Hsync

t

WH

t

HBP

HP

t

WHA

Data Enable

t

VP

t

WV

Vsync

t

VBP

t

WVA

Data Enable

Ver. 1.0 Jan. 26, 2010

t

HFP

t

VFP

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