LG Display LP156WHU-TLAA Specification

(◆) Preliminary Specification
( ) Final Specification

Title 15.6” HD TFT LCD

LP156WHU

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Customer DELL

MODEL

SIGNATUREAPPROVED BY

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WHU

Suffix TLAA

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

APPROVED BY

N. J. Seong / S.Manager

REVIEWED BY

S. S. Han / Manager

Y. C. Jung / Manager

PREPARED BY

PREPARED BY

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

SIGNATURE

SIGNATURE

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

Ver. 0.0 Oct. 18, 2012

Products Engineering Dept.

LG Display Co., Ltd

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Product Specification

Contents

LP156WHU

Liquid Crystal Display

No ITEM

COVER
CONTENTS
RECORD OF REVISIONS

1
2
3

4

GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTREISTICS

3-1

INTERFACE CONNECTIONS

3-2

LVDS 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

OPTICAL SFECIFICATIONS

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

9 PRECAUTIONS

Ver. 0.0 Oct. 18, 2012

MECHANICAL CHARACTERISTICS

7-1 SAFETY
7-2 EMC
7-3 Environment

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

A APPENDIX. Enhanced Extended Display Identification Data

17-19

20

21
21
21

22

22
23-24
25-27

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Product Specification

RECORD OF REVISIONS

LP156WHU

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Oct. 18. 2012 - First Draft (Preliminary Specification) -

EDID

ver

Ver. 0.0 Oct. 18, 2012

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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 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 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

for EDID & Tcon

Operating

User connector

1

1366

TFT-LCD Panel

Timing Control

(Tcon) Block

TCLKs

Power

Block

T_PWM

LED Driver

Block

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

40

Pin

LVDS

1port

PWM

DVCC

VCC

VLED

LED_EN

Control & Data 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 3.6W (Typ.) Logic : 0.8W (Typ.@ Mosaic), B/L : 2.8W (Typ.@ VLED 12V )
Weight 370 g (Max.)
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

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.

90% 80%

60%

Humidity[(%)RH]

Storage

40%

Operation

20%

10%

Wet Bulb
Temperature [℃]

20

10

0

60

50

40

30

-20

10

20 30 40 50

60 70 800

Dry Bulb Temperature [℃]

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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 - 240 275 mA 2
Power Consumption PCC - 0.8 0.9 W 2
Power Supply Inrush Current ICC_P - - 1500 mA 3
LVDS Impedance ZLVDS 90 100 110 Ω 4

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage VLED 7.0 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
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 - 3.6 V
0 - 0.3 V

LED_EN Impedance ZPWM 20 40 60 kΩ
LED_EN High Voltage VLED_EN_H 3.0 - 3.6 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.

3. 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.

LP156WHU

Rising time
Vcc

0V

90%

10%

3.3V

0.5ms

4. This impedance value is needed for proper display and measured form LVDS 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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LP156WHU

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
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
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
11 ORX1- Negative LVDS differential data input
12 ORX1+ Positive LVDS differential data input
13
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input
16
17 ORXC- Negative LVDS differential clock input
18 ORXC+ Positive LVDS differential clock input
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37 DBC_EN Dynamic Backlight Control enable(3.0V~3.6V)
38
39
40

NC

No Connection

Bist LCD Panel Self Test Enable

GND LCM Ground

GND LCM Ground

GND LCM Ground

GND LCM Ground

NC
NC

No Connection
No Connection

GND LCM Ground

NC
NC

No Connection
No Connection

GND LCM Ground

NC
NC

No Connection
No Connection

GND LCM Ground

NC
NC

GND
GND
GND

NC

PWM System PWM Signal input for dimming

LED_EN

VLED LED Backlight Power (7V-21V)
VLED LED Backlight Power (7V-21V)
VLED LED Backlight Power (7V-21V)

No Connection
No Connection

LCM Ground (LED Backlight Ground)
LCM Ground (LED Backlight Ground)
LCM Ground (LED Backlight Ground)

No Connection

LED Backlight On/Off

[Interface Chip]

1. LCD :
SiW, SW0664(LCD Controller)
Including LVDS Receiver.

2. System : SiW LVDSRx or equivalent

* Pin to Pin compatible with LVDS

[Connector]

Hirose KN38-40S-0.5H

[Connector pin arrangement]

140

[LCD Module Rear View]

[Note 1]
If PWM Duty is changed.
Brightness can be changed.

-PWM Duty spec. : 200Hz ~1KHz

-PWM High Level : 3.0 ~ 3.6V

-PWM Low Level : 0 ~ 0.3V

[Note 2]
LED EN : 3.0 ~ 3.6V
LED OFF : 0 ~ 0.3V

Ver. 0.0 Oct. 18, 2012

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Product Specification

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LP156WHU

Liquid Crystal Display

LVDS -

LVDS +

0V

|VID|

# |VID| = |(LVDS+) – (LVDS-)|
# VCM = {(LVDS+) + (LVDS-)}/2

V

CM

V

IN_MAXVIN_MIN

VDD=1.8V

Description Symbol Min Typ Max Unit Notes
LVDS Differential Voltage |VID| 100 - 600 mV ­LVDS Common mode Voltage V
LVDS Input Voltage Range V

CM

IN

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

0.3 - VDD V -

3-3-2. AC Specification

T

clk

LVDS Clock

LVDS Data

t

= 1/T

t

SKEW

SKEW (Fclk

1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400

2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600

clk

Description Symbol Min Max Unit Notes

t

SKEW

LVDS Clock to Data Skew Margin

t

SKEW

LVDS Clock to Clock Skew Margin (Even
to Odd)

Maximum deviation
of input clock frequency during SSC

Maximum modulation frequency
of input clock during SSC

Ver. 0.0 Oct. 18, 2012

t

SKEW_EO

F

DEV

F

MOD

)

- 400 + 400 ps

- 600 + 600 ps

- 1/7 + 1/7 T

-

± 3

clk

% -

- 200 KHz -

85MHz > Fclk ≥

65MHz

65MHz > Fclk ≥

25MHz

-

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