LG Display LP156WHU-TPB1 Specification

Product Specification

SPECIFICATION

LP156WHU

Liquid Crystal Display

( ) Preliminary Specification
( ◆ ) Final Specification

Title 15.6” HD TFT LCD

Customer Lenovo

MODEL

FOR

APPROVAL

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WHU

Suffix TPB1

*When you obtain standard approval,
please use the above model name without suffix

SIGNATURE APPROVED BY

/

/

/

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

Ver. 0.1 Jan. 10, 2013

APPROVED BY

APPROVED BY

J. Y.Lee / G.Manager

REVIEWED BY

REVIEWED BY

J. S. Park / Manager

PREPARED BY

PREPARED BY

K. T. Baek / Engineer
C. Y. Jung / Engineer

Products Engineering Dept.

LG Display Co., Ltd

SIGNATURE

SIGNATURE

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Product Specification

Contents

LP156WHU

Liquid Crystal Display

No ITEM

COVER
CONTENTS

RECORD OF REVISIONS
1 GENERAL DESCRIPTION
2 ABSOLUTE MAXIMUM RATINGS
3 ELECTRICAL SPECIFICATIONS
3-1 ELECTRICAL CHARACTREISTICS
3-2 INTERFACE CONNECTIONS
3-3 LVDS SIGNAL TIMING SPECIFICATION
3-4 SIGNAL TIMING SPECIFICATIONS

3-5
3-6
3-7
4

SIGNAL TIMING WAVEFORMS

COLOR INPUT DATA REFERNECE

POWER SEQUENCE

OPTICAL SFECIFICATIONS

Page

1
2
3
4
5

6-7

8

9
10
10
11
12

13-15

5
A APPENDIX. LGD PROPOSAL FOR SYSTEM COVER DESIGN

6 RELIABLITY
7 INTERNATIONAL STANDARDS
7-1 SAFETY
7-2 EMC
7-3 Environment
8 PACKING
8-1 DESIGNATION OF LOT MARK
8-2 PACKING FORM
9 PRECAUTIONS

Ver. 0.1 Jan. 10, 2013

MECHANICAL CHARACTERISTICS

A APPENDIX. Enhanced Extended Display Identification Data

16-18
19-23

24

25
25
25

26
26

27-28
29-31

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Product Specification

RECORD OF REVISIONS

LP156WHU

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Jan. 10. 2013 - First Draft (Preliminary Specification) -

1.0 Apr. 01. 2013 Final Version 1.0

EDID

ver

Ver. 0.1 Jan. 10, 2013

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LP156WHU

Liquid Crystal Display

Product Specification

1. General Description

The LP156WHU 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 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 LP156WHU has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WHU 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 LP156WHU characteristics provide an excellent flat display for office automation products such
as Notebook PC.

EEPROM Block

User connector

for Tcon & EDID

1

1366

TFT-LCD Panel

30

Pin

AUX

eDP

1 Lane

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

FB1~2

(HD, GIP, TN)

768

Source Driver

(Bottom)

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/m2(Typ.)
Power Consumption Total 3.5 W(Typ.) Logic : 0.7 W (Typ.@ Mosaic), B/L : 2.8 W (Typ.@VLED12V)
Weight 370g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Anti-Glare treatment (3H) of the front Polarizer
RoHS Compliance Yes

BFR / PVC / As Free Yes for all

359.5(H, Typ.) × 217.2(V, Typ.) × 3.2(D, Max.) [mm] (with PCB Board)

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LP156WHU

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 80 0

Dry Bulb Temperature [℃]

Ver. 0.1 Jan. 10, 2013

Operation

20%

10%

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LP156WHU

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WHU 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 - 220 255 mA 2
Power Consumption PCC - 0.7 0.8 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 - 235 250 mA 6
LED Power Consumption PLED - 2.8 3.0 W 6
LED Power Inrush Current ILED_P - - 2000 mA 7

Values

PWM Duty Ratio 5 - 100 %
PWM Jitter

-

0 - 0.2 % 9

8

PWM Impedance ZPWM 20 40 60 kΩ
PWM Frequency FPWM
PWM High Level Voltage V

PWM Low Level Voltage V

PWM_H

PWM_L

200 - 1000 Hz

2.5 - 3.6 V
0 - 0.6 V

10

LED_EN Impedance ZPWM 20 40 60 kΩ
LED_EN High Voltage VLED_EN_H 2.5 - 3.6 V
LED_EN Low Voltage VLED_EN_L 0 - 0.6 V
Life Time 12,000 - - Hrs 11

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LP156WHU

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.

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

90%

12.0V

0V

10%

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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LP156WHU

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
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 Clk EEDID
25 DATA EEDID DDC Data (LGD P-Vcom Share Pin)
26
27
28
29
30

DBC_EN Dynamic Backlight Control enable(3.0V~3.6V)

GND High Speed (Main Link) Ground

NC
NC

GND High Speed (Main Link) Ground

Lane0_N Complement Signal-Lane 0

Lane0_p True Signal-Main Lane 0

GND High Speed (Main Link) Ground
AUX_P True Signal-Auxiliary Channel
AUX_N Complement Signal-Auxiliary Channel

GND High Speed (Main Link) Ground

VCC

VCC

NC NO Connect
GND Ground
GND Ground
HPD HPD signal pin
GND LED Backlight Ground
GND LED Backlight Ground
GND LED Backlight Ground
GND LED Backlight Ground

LED_EN

PWM

VLED
VLED
VLED
VLED

NC

NO Connect
NO Connect

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

DDC Clock (LGD P-Vcom Share Pin)

LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)
LED Backlight Power (6.0V-21V)
NO Connect

[Interface Chip]

1. LCD :
SW0661A (LCD Controller
Including eDP Receiver.

2. System : STDP4028 or equivalent
* Pin to Pin compatible with eDP

[Connector]

HRS KN38-30S-0.5H

[Connector pin arrangement]

30

[LCD Module Rear View]

[LGD Pvcom pin]

1. Pin for P-Vcom : #24, #25

2. P-Vcom Address : 01010000

1

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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.

LP156WHU

Description Symbol Min Max Unit Notes

Differential peak-to-peak Input voltage

VDIFF p-p

120 -

mV

For high bit rate

40 - For reduced bit rate

Rx DC common mode voltage VCM

0 2.0 V -

3-3-2. AC Specification

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

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)

Link Clock Down Spreading

Lane-to-Lane skew

UI_High_Rate - 370 - ps

UI_Low_Rate - 617 - ps

Down_Spread_

Amplitude

V Rx-SKEW­INTER_PAIR

0 - 0.5 % -

- - 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 Jan. 10, 2013

V Rx-SKEW­INTRA_PAIR

- - 100 ps For high bit rate

- - 300 ps For reduced bit rate

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