LG Display LP156WF4-SPK1 Specification

( ) Preliminary Specification

◆

( ) Final Specification

Title 15.6” Full HD TFT LCD

LP156WF4

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Customer

MODEL

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WF4

Suffix SPK1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

SIGNATUREAPPROVED BY

/

/

/

APPROVED BY

S. R. Kim / S.Manager

REVIEWED BY

REVIEWED BY

C. I. Kim / Manager

PREPARED BY

PREPARED BY

S. Y. Kim / Engineer

S. H. Jung / Engineer

SIGNATURE

SIGNATURE

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

Ver. 0.1 Apr., 30, 2013

Products Engineering Dept.

LG Display Co., Ltd

1 / 31

Product Specification

Contents

LP156WF4

Liquid Crystal Display

No ITEM

COVER
CONTENTS
RECORD OF REVISIONS

1
2
3

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

POWER SEQUENCE

3-7

Page

1
2
3
4
5

6-7

8

9
10
10
11
12

4
5

6 RELIABLITY
7 INTERNATIONAL STANDARDS

8 PACKING

9 PRECAUTIONS

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OPTICAL SFECIFICATIONS
MECHANICAL CHARACTERISTICS

A APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN

7-1 SAFETY
7-2 Environment

8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM

A APPENDIX. Enhanced Extended Display Identification Data

13-15
16-18
19-23

24

25
25

26
26

27-28
29-31

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Product Specification

RECORD OF REVISIONS

LP156WF4

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Feb., 23, 2013 - Preliminary Specification V0.0

0.1 Apr., 29, 2013 29 ~ 31 Update EDID V0.2

EDID

ver.

Ver. 0.1 Apr., 30, 2013

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LP156WF4

Liquid Crystal Display

Product Specification

1. General Description

The LP156WF4 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 black mode. This TFT-LCD has 15.6 inches diagonally measured active display area with FHD
resolution (1920 horizontal by 1080 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 LP156WF4 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WF4 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 LP156WF4 characteristics provide an excellent flat display for office automation products such as
Notebook PC.

EEPROM Block

User connector

for Tcon & EDID

1

1920

TFT-LCD Panel

30

Pin

eDP

2 Lane

VCC

VLED

LED_EN

PWM

Timing Control

(Tcon) Block

DVCC

Power

Block

LED Driver

Block

TCLKs

Control & Data Power

1080

DVCC, AVDD

VGH, VGL, GMA

GSP,GSC,GOE

VOUT_LED

FB1~6

(FHD,AH-IPS)

Source Driver Circuit

LED Backlight Ass‟y

EDID signal & Power

General Features

Active Screen Size 15.6 inches diagonal
Outline Dimension
Pixel Pitch 0.17925 mm x 0.17925 mm
Pixel Format 1920 horiz. By 1080 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 300 cd/m2 (Typ. 5 point)
Power Consumption Total 5.7W (Typ.) Logic : 1.1W (Typ. @ Mosaic), B/L : 4.6W (Typ. @VLED12V)
Weight 350 g (Max.) / 340 g (Typ.)
Display Operating Mode Normally Black
Surface Treatment Anti glare treatment of the front Polarizer
RoHS Compliance Yes

BFR / PVC / As Free Yes for all

359.5 (H, Typ.) × 223.8 (V, Typ.) × 3.2 (D, Max.) [mm] (with Bracket & PCB Board)

COG(Chip On Glass)

`

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LP156WF4

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

VCC -0.3 4.0 Vdc at 25  5C

TOP 0 50 C 1
HST -20 60 C 1
HOP 10 90 %RH 1
HST 10 90 %RH 1

Values

Units Notes

Min Max

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.

Note : 2. Storage Condition is guaranteed under packing condition.

90% 80%

60%

Humidity[(%)RH]

Storage

40%

Wet Bulb
Temperature [℃]

60

50

40

30

20

10

0

-20

10

20 30 40 50

60 70 800

Dry Bulb Temperature [℃]

Ver. 0.1 Apr., 30, 2013

Operation

20%

10%

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LP156WF4

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WF4 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

Unit Notes

Min Typ Max

LOGIC :

Power Supply Input Voltage VCC 3.0 3.3 3.6 V 1
Power Supply Input Current Mosaic ICC - 330 390 mA 2
Power Consumption PCC - 1.1 1.3 W 2
Power Supply Inrush Current ICC_P - - 1500 mA 3
Differential Impedance Zm 90 100 110 Ω 4

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage VLED 6.0 12.0 21.0 V 5
LED Power Input Current ILED - 380 390 mA 6
LED Power Consumption PLED - 4.5 4.6 W 6
LED Power Inrush Current ILED_P - - 1500 mA 7
PWM Duty Ratio 5 - 100 % 8

Values

PWM Jitter

-

0 - 0.2 % 9

PWM Impedance ZPWM 20 40 60 kΩ
PWM Frequency FPWM 200 - 1000 Hz 10
PWM High Level Voltage V

PWM Low Level Voltage V

PWM_H

PWM_L

3.0 - 5.3 V
0 - 0.3 V

LED_EN Impedance ZPWM 20 40 60 kΩ
LED_EN High Voltage VLED_EN_H 3.0 - 5.3 V
LED_EN Low Voltage VLED_EN_L 0 - 0.3 V
Life Time 15,000 - - Hrs 11

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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.

2. This Spec. is the max load condition for the cable impedance designing.

3. 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.

LP156WF4

Rising time
Vcc

0V

10%

90%

3.3V

0.5ms

4. This impedance value is needed for proper display and measured form eDP Tx to the mating connector.

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

6. 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).

7. The below figures are the measuring Vled condition
and the Vled control block LGD used.
VLED control block is same with Vcc control block.

Rising time
VLED

0V

10%

90%

12.0V

0.5ms

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

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

10. 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.

11. 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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LP156WF4

Liquid Crystal Display

Product Specification

3-2. Interface Connections

This LCD employs two interface connections, a 30 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

2

GND High Speed (Main Link) Ground

3

Lane1_N Complement Signal-Lane 1

4

Lane1_p True Signal-Main Lane 1

5

GND High Speed (Main Link) Ground

6

Lane0_N Complement Signal-Lane 0

7

Lane0_p True Signal-Main Lane 0

8

GND High Speed (Main Link) Ground

9

AUX_P True Signal-Auxiliary Channel

10

AUX_N Complement Signal-Auxiliary Channel

11

GND High Speed (Main Link) Ground

12

VCC

13

VCC

14

BIST LCD Panel Self Test

15

GND LCM Ground

16

GND LCM Ground

17

HPD HPD signal pin

18

GND LCM Ground (LED Backlight Ground)

19

GND LCM Ground (LED Backlight Ground)

20

GND LCM Ground (LED Backlight Ground)

21

GND LCM Ground (LED Backlight Ground)

22

LED_EN

23

PWM

24

NC No Connection

25

NC No Connection

26

VLED

27

VLED

28

VLED

29

VLED

30

NC No Connection

No Connection

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

LED Backlight On/Off
System PWM Signal input for dimming

LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)

[Interface Chip]

1. LCD :
Analogix, ANX2804 (LCD Controller
Including eDP Receiver.

2. System : TBD or equivalent

* Pin to Pin compatible with eDP

[Connector]

KN38B-30S-0.5H, HIROSE, 30, 0.5

or its compatibles

[Connector pin arrangement]

30

[LCD Module Rear View]

1

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LP156WF4

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.

Description Symbol Min Max Unit Notes

Differential peak-to-peak Input voltage

Rx DC common mode voltage VCM 0 2.0 V -

VDIFF p-p

120 -

mV

40 - For reduced bit rate

For high bit rate

3-3-2. AC Specification

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

Description Symbol Min Typ Max Unit Notes

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

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

Lane-to-Lane skew

UI_High_Rate - 370 - ps

UI_Low_Rate - 617 - ps

V Rx-SKEW­INTER_PAIR

- - 5200 ps -

Range is nominal ±350ppm.
DisplayPort Link Rx does not
require local crystal for link
clock generation

Lane intra-pair skew

Ver. 0.1 Apr., 30, 2013

V Rx-SKEW­INTRA_PAIR

- - 100 ps For high bit rate

- - 300 ps For reduced bit rate

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LP156WF4

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 6. TIMING TABLE

ITEM Symbol Min Typ Max Unit Note

DCLK Frequency f

Period

Hsync

Width t

Width-Active t

Period t

Vsync

Width t

Width-Active t

Horizontal back porch t

Data

Enable

Horizontal front porch t

Vertical back porch t

Vertical front porch t

CLK

t

WH

WHA

WV

WVA

HBP

HFP

VBP

VFP

HP

VP

- 138.7 -

- 2080 -

- 32 -

- 1920 -

- 1111 -

- 5 -

- 1080 -

- 80 -

- 48 -

- 23 -

- 3 -

MHz eDP 2 Lane

tCLK

tHP

tCLK

tHP

Appendix) all reliabilities are specified for timing specification based on refresh rate of 60Hz. However,
LP156WF4 has a good actual performance even at lower refresh rate (e.g. 40Hz or 50Hz) for power saving
mode, whereas LP156WF4 is secured only for function under lower refresh rate. 60Hz at Normal mode, 50Hz,

40Hz at Power save mode. Don‟t care Flicker level (power save mode).

3-5. Signal Timing Waveforms

Data Enable, Hsync, Vsync

High: 0.7VCC
Low: 0.3VCC

Condition : VCC =3.3V

DCLK

Hsync

t

tCLK

WH

t

HBP

0.5 Vcc

t

HP

tWHA

Data Enable

t

VP

t

WV

Vsync

t

VBP

tWVA

Data Enable

Ver. 0.1 Apr., 30, 2013

t

HFP

t

VFP

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