LG LP156WH4-TLA1 Schematics

LP156WH4

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

(	)	Preliminary Specification
(	)	Final Specification
		Title		15.6” HD TFT LCD

Customer

ACER

MODEL

SUPPLIER	LG Display Co., Ltd.
*MODEL	LP156WH4
Suffix	TLA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

SIGNATURE

/

/

/

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

APPROVED BY

SIGNATURE

G. J. Han / S.Manager

REVIEWED BY

B.T. Jang / Manager C. H. Lee / Manager

PREPARED BY

K. M. Lee / Engineer

G. H. Lee / Engineer

Products Engineering Dept.

LG Display Co., Ltd

Ver. 1.0	Mar. 10, 2011	1 / 31

LP156WH4

Liquid Crystal Display

Product Specification

Contents

	No	ITEM	Page
		COVER	1
		CONTENTS	2
		RECORD OF REVISIONS	3
	1	GENERAL DESCRIPTION	4
	2	ABSOLUTE MAXIMUM RATINGS	5
	3	ELECTRICAL SPECIFICATIONS
	3-1	ELECTRICAL CHARACTREISTICS	6-7
	3-2	INTERFACE CONNECTIONS	8
	3-3	LVDS SIGNAL TIMING SPECIFICATION	9-10
	3-3	SIGNAL TIMING SPECIFICATIONS	11
	3-4	SIGNAL TIMING WAVEFORMS	11
	3-5	COLOR INPUT DATA REFERNECE	12
	3-6	POWER SEQUENCE	13
	4	OPTICAL SFECIFICATIONS	14-16
	5	MECHANICAL CHARACTERISTICS	17-20
	A	APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN	21-23
	6	RELIABLITY	24
	7	INTERNATIONAL STANDARDS
	7-1	SAFETY	25
	7-2	EMC	25
	7-3	ENVIRONMENT	25
	8	PACKING
	8-1	DESIGNATION OF LOT MARK	26
	8-2	PACKING FORM	26
	9	PRECAUTIONS	27-28
	A	APPENDIX. Enhanced Extended Display Identification Data	29-31
Ver. 1.0		Mar. 10, 2011	2 / 31

LP156WH4

Liquid Crystal Display

Product Specification

RECORD OF REVISIONS

	Revision No	Revision Date	Page	Description	EDID
					ver
	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

Ver. 1.0	Mar. 10, 2011	3 / 31

LP156WH4

Liquid Crystal Display

Product Specification

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.

		EEPROM Block
		for EDID
User
	LVDS	Timing Control
connector	1port	Block
		DVCC	CLKs
					AVCC, AVDD
40	VCC	Power
		Block			VGH, VGL, GMA
Pin					GIP CLKs, DSC
	VLED
					VOUT_LED
		LED Driver
	LED_EN	Block			FB1~4
	PWM
	Control & Data				Power

1

1366

TFT-LCD Panel

(FHD, GIP, TN)

768

Source Driver

(Bottom Bent)

LED Backlight Ass’y

EDID signal & Power

General Features

Active Screen Size	15.6 inches diagonal
Outline Dimension	359.3(H, typ) × 209.5(V, typ) × 5.5(D,max) [mm]
Pixel Pitch	0.252mm × 0.252 mm
Pixel Format	1366 horiz. By 768 vert. Pixels RGB strip arrangement
Color Depth	6-bit, 262,144 colors
Luminance, White	220 cd/m2(Typ.5 point @ PWM Duty = 100%)
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
Ver. 1.0	Mar. 10, 2011	4 / 31

LP156WH4

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		Values		Units	Notes
		Min		Max
Power Input Voltage	VCC	-0.3		4.0	Vdc	at 25 ± 5°C
Operating Temperature	TOP	0		50	°C	1
Storage Temperature	HST	-20		60	°C	1
Operating Ambient Humidity	HOP	10		90	%RH	1
Storage Humidity	HST	10		90	%RH	1

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		60%
	Wet Bulb					50			20%	Humidity[(%)RH]
		10
	Temperature [ ]
					40				40%
				30
			20
	0								10%
-20	0	10	20	30	40	50	60	70	80

Dry Bulb Temperature [ ]

Storage

Operation

Ver. 1.0	Mar. 10, 2011	5 / 31

LP156WH4

Liquid Crystal Display

Product Specification

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

	Parameter	Symbol		Values		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	-	275	320	mA	2
	Power Consumption	PCC	-	0.9	1.1	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	-	275	290	mA	6
	LED Power Consumption	PLED	-	3.3	3.5	W	6
	LED Power Inrush Current	ILED_P	-	-	1500	mA	7
	PWM Duty Ratio		5	-	100	%	8
	PWM Jitter	-	0	-	0.2	%	9
	PWM Impedance	ZPWM	20	40	60	kΩ
	PWM Frequency	FPWM	200	-	1000	Hz	10
	PWM High Level Voltage	VPWM_H	3.0	-	5.3	V
	PWM Low Level Voltage	VPWM_L	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

Ver. 1.0	Mar. 10, 2011	6 / 31

LP156WH4

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.

Rising time				3.3V
	90%
Vcc

0V 10%

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											12.0V
and the Vled control block LGD used.		Rising time 90%
VLED control block is same with Vcc control block.		VLED
		0V	10%							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.

Ver. 1.0	Mar. 10, 2011	7 / 31

LP156WH4

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	NC	No Connection.		[Interface Chip]
	2	VCC	LCD Logic and driver power (3.3V Typ.)		1. LCD :
	3	VCC	LCD Logic and driver power (3.3V Typ.)		SiW, SW0617(LCD Controller)
	4	V EEDID	DDC Power (3.3V)		Including LVDS Receiver.
	5	NC	No Connection.		2. System : SiW LVDSRx or equivalent
	6	Clk EEDID	DDC Clock		* Pin to Pin compatible with LVDS
	7	DATA EEDID	DDC Data		[Connector]
	8	ORX0-	Negative LVDS differential data input
					UJU IS050-L40B-C10
	9	ORX0+	Positive LVDS differential data input
					LSMtron GT05Q-40S-H10 or		equivalent
	10	GND	LCM Ground
	11	ORX1-	Negative LVDS differential data input		[Mating Connector]
	12	ORX1+	Positive LVDS differential data input
					20345-#40E-## series or equivalent
	13	GND	LCM Ground
	14	ORX2-	Negative LVDS differential data input		[Connector pin arrangement]
	15	ORX2+	Positive LVDS differential data input
	16	GND	LCM Ground		40		1
	17	ORXC-	Negative LVDS differential clock input
	18	ORXC+	Positive LVDS differential clock input
	19	GND	LCM Ground
						[LCD Module Rear View]
	20	NC	No Connection
	21	NC	No Connection
	19	GND	LCM Ground
	23	NC	No Connection
	24	NC	No Connection
	19	GND	LCM Ground
	26	NC	No Connection
	27	NC	No Connection
	19	GND	LCM Ground
	29	NC	No Connection
	30	NC	No Connection
	31	GND	LCM Ground	(LED Backlight Ground)
	32	GND	LCM Ground	(LED Backlight Ground)
	33	GND	LCM Ground	(LED Backlight Ground)
	34	NC	No Connection.
	35	PWM	System PWM Signal input for dimming
	36	LED_EN	LED Backlight On/Off
	37	NC	No Connection
	38	VLED	LED Backlight Power (7V-21V)
	39	VLED	LED Backlight Power (7V-21V)
	40	VLED	LED Backlight Power (7V-21V)

Ver. 1.0	Mar. 10, 2011	8 / 31

LP156WH4

Liquid Crystal Display

Product Specification

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LVDS -
|VID|
LVDS +
VCM	VIN_MAX	VIN_MIN
# |VID| = |(LVDS+) – (LVDS-)|
# VCM = {(LVDS+) + (LVDS-)}/2
0V

	Description	Symb	Min	Max	Unit	Notes
		ol
	LVDS Differential Voltage	|VID|	100	600	mV	-
	LVDS Common mode Voltage	VCM	0.6	1.8	V	-
	LVDS Input Voltage Range	VIN	0.3	2.1	V	-

3-3-2. AC Specification

Tclk

LVDS Clock

LVDS Data

tSKEW (Fclk = 1/Tclk)

1) 85MHz > Fclk ≥ 65MHz : -400 ~ +400

tSKEW

2) 65MHz > Fclk ≥ 25MHz : -600 ~ +600

Description

Symbol

Min

Max

Unit

Notes

tSKEW

- 400

+ 400

ps

85MHz > Fclk ≥

65MHz

LVDS Clock to Data Skew Margin

tSKEW

- 600

+ 600

ps

65MHz > Fclk ≥

25MHz

LVDS Clock to Clock Skew Margin (Even

tSKEW_EO

- 1/7

+ 1/7

Tclk

-

to Odd)

Maximum deviation

FDEV

-

± 3

%

-

of input clock frequency during SSC

Maximum modulation frequency

FMOD

-

200

KHz

-

of input clock during SSC

Ver. 1.0	Mar. 10, 2011	9 / 31

LP156WH4

Liquid Crystal Display

Product Specification

tSKEW_EO

LVDS Odd Clock

Tclk

LVDS Even Clock

Tclk

LVDS Even Data

< Clock skew margin between channel >

Freq.

Fmax

Fcenter * FDEV

Fcenter

Fmin

1

FMOD

Time

< Spread Spectrum >

3-3-3. Data Format

1) LVDS 1 Port

RCLK+

RA+/-

R3

R2

R1

R0

G0

R5

R4

R3

R2

R1

R0

G0

R5

R4

RB+/-

G4

G3

G2

G1

B1

B0

G5

G4

G3

G2

G1

B1

B0

G5

RC+/-

B5

B4

B3

B2

DE

VSYNC HSYNC

B5

B4

B3

B2

DE

VSYNC HSYNC

RD+/-

G7

G6

R7

R6

X

B7

B6

G7

G6

R7

R6

X

B7

B6

Previous

(N-1)th Cycle

Current (Nth ) Cycle

Next (N+1)th Cycle

< LVDS Data Format >

Ver. 1.0	Mar. 10, 2011	10 / 31