LG LP156WH4-TLA1 Schematics

( ) Preliminary Specification
( ) Final Specific ation

◆

Title 15.6” HD TFT LCD

LP156WH4

Liquid Crystal Display

Product Specific ation

SPECIFICATION

FOR

APPROVAL

Customer ACER

MODEL

SIGNATUREAPPROVED BY

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LP156WH4

Suffix TLA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

APPROVED BY

G. J. Han / S.Manager

REVIEWED BY

REVIEWED BY

B. T. Jang / Manager

C. H. Lee / Manager

PREPARED BY

PREPARED BY

K. M. Lee / Engineer

G. H. Lee / Engineer

SIGNATURE

SIGNATURE

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

Ver. 1 .0 Mar. 10, 2011

Products Engineer ing Dept.

LG Displa y Co., Lt d

1 / 31

Product Specific ation

Contents

LP156WH4

Liquid Crystal Display

No

1
2

3

3-1
3-2
3-3
3-3
3-4
3-5
3-6

4

COVER
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION
ABSOLUTE MAXIMUM RATINGS

ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTREISTICS

INTERFACE CONNECTIONS
LVDS SIGN AL TIM ING S PE C IFIC AT ION
SIGNAL TIMIN G SPEC IFICA TIONS
SIGNAL TIMIN G WAVEFORM S
COLOR INPUT DATA REFERNECE
POWER SEQUENCE
OPTICA L SFE CIFIC ATION S

ITEM

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. 1 .0 Mar. 10, 2011

MECHANICAL CHARACTERISTICS

A APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN

7-1 SAFETY
7-2 EMC 25

7-3 ENVIRONMENT 25

8-1 DESIGN ATION OF LOT MARK
8-2 PACKING FORM

A APPENDIX. Enhanced Extended Display Identification Data

17-20
21-23

24

25

26

26
27-28
29-31

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Product Specific ation

RECORD OF REVISIONS

LP156WH4

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Sep. 06, 2010 - First Draft (Preliminary Specification) 0.0

0.1 Dec. 28, 2010 14 Color Coordinates Update
15 Gray scale Update

29~31 EDID Update 1.0

1.0 Mar. 10, 2011 - Final Draft
26 Update Designation of lot mark

EDID

ver

Ver. 1 .0 Mar. 10, 2011

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LP156WH4

Liquid Crystal Display

Product Specific ation

1. General Description

The LP156WH4 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 LP156WH4 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP156WH4 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 LP156WH4 characteristics provide an excellent flat display for office automation products such
as Notebook PC.

1

TFT-LCD Panel

(FHD, GIP, TN)

768

Source Driver
(Bottom Bent)

LED Backlight Ass’y

EDID signal & Power

User connector

40

Pin

EEPROM Block

for EDID

LVDS

1port

VCC

VLED

LED_EN

PWM

Timing Control

Block

DVCC

Power

Block

LED Dri ver

Block

CLKs

VGH, VGL, GMA

Control & Data Power

AVCC, AVDD

GIP CLKs, DSC

VOUT_LED

FB1~4

General Features

Active Screen Size 15.6 inches diagonal
Outline Dimension
Pixel Pitch
Pixel Format 1366 horiz. By 768 vert. Pixels RGB strip arrangement
Color Depth 6-bit, 262,144 colors
Luminance, White 220 cd/m
Power Consumption Total 4.2 W(Typ.) Logic : 0.9W (Typ.@ Mosaic), B/L : 3.3W (Typ.@ VLED 12V )
Weight 450g (Max.)
Display Operating Mode Transmissive mode, normally white
Surface Treatment Glare treatment (3H) of the front Polarizer
RoHS Comply Yes
BFR / PVC / As Free Yes for all

359.3(H, typ) × 209.5(V, typ) × 5.5(D,max) [mm]

0.252mm × 0.252 mm

2

(Typ.5 point @ PWM Duty = 100%)

1366

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LP156WH4

Liquid Crystal Display

Product Specific ation

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

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

Values

Units Notes

Min Max

°C
°C

Note : 1. Temperature and relative humidity range are shown in the figure below.

Wet bulb temperature should be 39

Wet Bulb
Temperature[℃]

30

20

10

0

°C Max, and no condensation of water.

90% 80%

60

50

40

60%

Humidity[(%)RH]

40%

20%

10%

Storage

Operation

at 25 ± 5°C

1
1

-20

10

20 30 40 50

60 70 800

Dry Bulb Temperature [℃]

Ver. 1 .0 Mar. 10, 2011

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LP156WH4

Liquid Crystal Display

Product Specific ation

3. Electrical Specifications
3-1. Electrical Characteristics

The LP156WH4 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

Parameter Symbol

Min Typ Max

LOGIC :

Unit Notes

Power Supply Input Voltage V
Power Supply Input Current Mosaic I
Power Consumption P
Power Supply Inrush Current I
LVDS Impedance Z

CC 3.0 3.3 3.6 V 1

CC - 275 320 mA 2

CC - 0.9 1.1 W 2

CC_P - - 1500 mA 3

LVDS 90 100 110 Ω 4

BACKLIGHT : ( with LED Driver)

LED Power Input Voltage V
LED Power Input Current I
LED Power Consumption P
LED Power Inrush Current I

LED 7.0 12.0 21.0 V 5

LED - 275 290 mA 6

LED - 3.3 3.5 W 6

LED_P - - 1500 mA 7

PWM Duty Ratio 5 - 100 % 8
PWM Jitter
PWM Impedance Z

PWM Frequency F

-

PWM 20 40 60 kΩ

PWM 200 - 1000 Hz 10

0 - 0.2 % 9

PWM High Level Voltage V
PWM Low Level Voltage V
LED_EN Impedance Z
LED_EN High Voltage V
LED_EN Low Voltage V

LED_EN_H 3.0 - 5.3 V
LED_EN_L 0 - 0.3 V

PWM_H

PWM_L

PWM 20 40 60 kΩ

3.0 - 5.3 V
0 - 0.3 V

Life Time 15,000 - -

Ver. 1 .0 Mar. 10, 2011

Hrs 11

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LP156WH4

Liquid Crystal Display

Product Specific ation

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.

Rising time
Vcc

0V

10%

90%

3.3V

0.5ms

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.

Rising time
V

LED

0V

10%

90%

12.0V

0.5ms

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

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

11. This Spec. is not effective at 100% dimmi ng ratio as an exception because it has DC lev el 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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LP156WH4

Liquid Crystal Display

Product Specific ation

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 NC N o Connection.
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 NC N o Connection.
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 GND LCM Ground
11 ORX1- Negative LVDS differential data input
12 ORX1+ Positive LVDS differential data input
13 GND LCM Ground
14 ORX2- Negative LVDS differential data input
15 ORX2+ Positive LVDS differential data input
16 GND LCM Ground
17 ORXC- Negative LV DS dif ferential c lock input
18 ORXC+ Positive LVDS differential clock input
19 GND LCM Ground
20 NC N o Connecti on
21 NC N o Connecti on
19 GND LCM Ground
23 NC N o Connecti on
24 NC N o Connecti on
19 GND LCM Ground
26 NC N o Connecti on
27 NC N o Connecti on
19 GND LCM Ground
29 NC N o Connecti on
30 NC N o Connecti on
31
32
33
34 NC N o Connecti on.
35
36
37
38
39
40

GND LCM Ground (LED Backlight G round)
GND LCM Ground (LED Backlight G round)
GND LCM Ground (LED Backlight G round)

PWM System PWM Signal input for dimming

LED_EN

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

LED Backlight On/Off

No C on nec t ion

ED Backlight Power (7V-21V)

ED Backlight Power (7V-21V)

[Interface Chip]

1. LCD :
SiW, SW0617(LCD Controller)
Including LVDS R eceiver.

2. System : SiW LVDSRx or equivalent

* Pin to Pin c ompati bl e with LVDS

[Connector]

UJU IS050-L40B-C10
LSMtron GT05Q-40S-H10 or equival en t

[Mating Connector]

20345-#40E-## s eries or equivale nt

[Connector pin arrangement]

40

[LCD Module Rear View]

1

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Product Specific ation

LVDS +

LVDS -

0V

V

CM

# |V

ID

| = |(LVDS+) – (LVDS-)|

# V

CM

= {(LVDS+) + (LVDS-)}/2

|VID|

V

IN_MAX

V

IN_MIN

LVDS Data

t

SKEW

LVDS Clock

T

clk

t

SKEW

(F

clk

= 1/T

clk

)

1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400

2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LP156WH4

Liquid Crystal Display

Description

Symb

ol

Min Max Unit Notes

LVDS Differential Voltage |VID| 100 600 mV ­LVDS Common mode Voltage V
LVDS Input Voltage Range V

CM

IN

0.6 1.8 V -

0.3 2.1 V -

3-3-2. AC Specification

Description Symbol Min Max Unit Notes

85MHz > Fclk ≥

65MHz > Fclk ≥

LVDS Clock to Data Skew Margin

t

SKEW

t

SKEW

- 400 + 400 ps

- 600 + 600 ps

65MHz

25MHz

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. 1 .0 Mar. 10, 2011

t

SKEW_EO

F

DEV

F

MOD

- 1/7 + 1/7 T

clk

- ± 3 % -

- 200 KHz -

-

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LVDS Even Data

LVDS Odd Clock

LVDS Even Clock

t

SKEW_EO

T

clk

T

clk

Freq.

F

max

F

center

F

min

Product Specific ation

< Clock skew margin between channel >

LP156WH4

Liquid Crystal Display

F

* F

center

DEV

3-3-3. Data For mat

1) LVDS 1 Port

RCLK+

RA+/-

RB+/-

RC+/-

RD+/-

R3 R2

G4 G3

B5 B4

G7 G6

R1 R0

G2 G1

B3 B2

R7 R6

1

F

MOD

< Spread Spectrum >

G0 R5 R4 R3 R2 R1 R0

B1 B0 G5 G4 G3 G2 G1

DE VSYNC HSYNC B5 B4 B3 B2

X B7 B6 G7 G6 R7 R6

Time

G0

B1

DE

VSYNC HSYNC

X

R5 R4

B0 G5

B7 B6

Ver. 1 .0 Mar. 10, 2011

Previous (N-1)th Cycle Next (N+1)th Cycle

Current (Nth) Cycle

< LVDS Data Format >

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