LG LP-156WF1-TPB1 Service manual

LP156WF1

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(
(

Preliminary Specification

)

Final Specification

◆

15.6”W FHD 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

G. J. Kwon / S.Manager

REVIEWED BY

REVIEWED BY

S. R. Kim / Manager

PREPARED BY

PREPARED BY

C. J. Park / Engineer

LG Display Co., Ltd.SUPPLIER

LP156WF1*MODEL

TPB1Suffix

SIGNATURE

SIGNATURE

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

Ver. 1.0 Jan.21, 2010

Products Engineering Dept.

LG Display Co., Ltd

1 / 30

Product Specification

Contents

LP156WF1

Liquid Crystal Display

No

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

ITEM

Page

1
2
3
4
5

6
8

9
10
10
11
12

13-15

5

Ver. 1.0 Jan.21, 2010

MECHANICAL CHARACTERISTICS
RELIABLITY6
INTERNATIONAL STANDARDS7
SAFETY7-1
EMC7-2
PACKING8
DESIGNATION OF LOT MARK8-1
PACKING FORM8-2
PRECAUTIONS9
APPENDIX. Enhanced Extended Display Identification Data A

16-19

23

24
24

25
25

26-27
28-30

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Product Specification

RECORD OF REVISIONS

LP156WF1

Liquid Crystal Display

DescriptionPageRevision DateRevision No

First Draft (Preliminary Specification)AllJun. 17, 20090.0
Add PPID Label Revision Code 19Oct. 17, 20090.1
Update ELECTRICAL CHARACTERISTICS6-7Sep. 25, 20090.2

8

28-30

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Update Interface Connections symbol ( NC 
Update Gray Scale (G55 )14

Update General Description4Jan. 21, 20100.4

Update Electrical Characteristics6
Update Signal Specifications10
Update Rear View18

Update EDID

Final SpecificationAllJan. 21, 20101.0

ML1-, ML1+)

EDID

ver

-

X20EDID Updated28-30Dec. 5, 20090.3

A00

Ver. 1.0 Jan.21, 2010

3 / 30

LP156WF1

Liquid Crystal Display

Product Specification

1. General Description

The LP156WF1 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 FHD
resolution(1080 vertical by 1920 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 LP156WF1 has been designed to apply the interface method that enables low power, high speed, low
EMI.

The LP156WF1 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
LP156WF1 characteristics provide an excellent flat display for office automation products such as Notebook
PC.

CN 1 User connector 30 Pin

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General Features

LED

LED

Driver

Driver

POWER

POWER

BLOCK

BLOCK

EEPROM

EEPROM

BLOCK

BLOCK

eDP &

eDP &

Timing

Timing

Control

Control

Block

Block

Control & Data

15.6 inches diagonalActive Screen Size

359.3(H, typ.) × 209.5(V, typ.) × 5.7(D,max) [mm]Outline Dimension

0.17925 mm x 0.17925 mmPixel Pitch
1920 horiz. By 1080 vert. Pixels RGB strip arrangementPixel Format
6-bit, 262,144 colorsColor Depth
300 cd/m2(Typ.5 point)Luminance, White
Total 7.85W(Typ.) Logic : 2.0 W (Typ.@ Mosaic), B/L : 5.85W (Typ.@ VLED 12V )Power Consumption

470g (Max.)Weight
Transmissive mode, normally whiteDisplay Operating Mode
Anti-Glare treatment of the front polarizer(3H)Surface Treatment

YesRoHS Comply
Yes all. BFR / PVC / As Free

CN2

CN2

9Pin

9Pin

FPC

FPC

1

GIP(Gate In

Panel)

1080

1

Power EDID signal

WLED Ass’y(78ea)

TFT-LCD Panel

(1920 X 1080)

Source Driver Circuit

Source Driver Circuit

1920

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LP156WF1

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.21, 2010

10

20 30 40 50

Dry Bulb Temperature [℃℃℃℃]

60 70 800

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LP156WF1

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WF1 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 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

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SymbolParameter

CC

MosaicPower Supply Input Current

CC

CC

CC_P

LVDS

LED

LED

LED

LED_P

-

PWM

Values

MaxTypMin

11010090Z

Ω

kΩ604020Z

NotesUnit

1V3.63.33.0V
2mA700600-I
2W2.32.0-P
3mA1500--I
4

5V21.012.07.0V
6mA517487-I
6W6.25.85-P
7mA1500--I
8%100-5PWM Duty Ratio
9%0.2-0

PWM Frequency
PWM High Level Voltage

PWM Low Level Voltage
LED_EN Impedance
LED_EN High Voltage
LED_EN Low Voltage

Ver. 1.0 Jan.21, 2010

PWM

PWM_H

PWM_L

PWM

LED_EN_H

LED_EN_L

10Hz1000-200F

V5.3-3.0V
V0.5-0V

kΩ604020Z

V5.3-3.0V
V0.5-0V

11Hrs--12000Life 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 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.

LP156WF1

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 time at which brightness of LCD is 50% compare to that of minimum

value specified in table 7. under general user condition.

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LP156WF1

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 CABLINE-VS RECE ASS’Y manufactured by I-PEX.

Table 3. MODULE CONNECTOR PIN CONFIGURATION (CN1)

NotesDescriptionSymbolPin

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

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BL_GND BL Ground

Conn. Continuity Test (Reserved)PAID
High Speed (Main Link) GroundH_GND
Complement Signal-Lane 1ML1­True Signal-Main Lane 1ML1+
High Speed (Main Link) GroundH_GND
Complement Signal-Lane 0ML0­True Signal-Main Lane 0ML0+
High Speed (Main Link) GroundH_GND
True Signal-Auxiliary ChannelAUX+
Complement Signal-Auxiliary ChannelAUX­High Speed (Main Link) GroundH_GND
VCC for Module (3.3V)VCC
VCC for Module (3.3V)VCC
Built-In Self Test (active high)BIST

GroundGND

GroundGND
HPD signal pinHPD
BL GroundBL_GND
BL GroundBL_GND
BL GroundBL_GND

1, Interface chips

1.1 LCD : IDT, Becrux (LCD Controller)
including eDP Receiver

1.2 System : TBD

* Pin to Pin compatible with eDP

2. Connector

2.1 LCD : CABLINE-VS RECE ASS’Y, I-PEX

2.2 Mating : CABLINE-VS PLUG CABLE

2.3 Connector pin arrangement

30

or equivalent

or its compatibles

ASS’Y or equivalent.

1

[LCD Module Rear View]

22

BL_EN

23

BL_PWM

24
25
26
27
28
29
30

Ver. 1.0 Jan.21, 2010

BL On/Off (On: 3.0~3.3V, Off: 0~0.5V) / NC (100K pull­up) / 5V tolerant

PWM for luminance control (200~1KHz, 3.3V, 6~100%,
0V=off) 5V tolerant

No Connection (Reserved)NC
No Connection (Reserved)NC
BL Power 7V-20VVBL
BL Power 7V-20VVBL
BL Power 7V-20VVBL
BL Power 7V-20VVBL
Conn. Continuity Test (Reserved)PAID

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LP156WF1

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.21, 2010

V Rx-SKEW­INTRA_PAIR

-

For high bit rate

ps100-

For reduced bit rateps300--

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