LG LP156WHB-TLA1 Schematics

LP156WHB

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

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

Customer

Asus

MODEL

SUPPLIER	LG Display Co., Ltd.
*MODEL	LP156WHB
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

J.S. Park / Manager

REVIEWED BY

S.W. Kim / Manager

PREPARED BY

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

Products Engineering Dept.

LG Display Co., Ltd

Ver. 0.0	Jan. 06, 2014	1 / 30

LP156WHB

Liquid Crystal Display

Product Specification

Contents

RECORD OF REVISIONS…………………………………………………………………… 3

1. GENERAL DESCRIPTION……………………………………………………………… 4

2.ABSOLUTE MAXIMUM RATINGS……………………………………………………... 5

3.ELECTRICAL SPECIFICATIONS………………………………………….…………… 6

3-1. LCD ELECTRICAL CHARACTREISTICS…..………………………………………….....	6
3-2. LED BACKLIGHT ELECTRICAL CHARACTREISTICS……………………………….....	6
3-3. INTERFACE CONNECTIONS………………………………………………………………	8
3-4. LVDS SIGNAL TIMING SPECIFICATION…………………………………………………	9
3-5. SIGNAL TIMING SPECIFICATIONS……………………………………………………….	11
3-6. SIGNAL TIMING WAVEFORMS…………………………………………………………… 11
3-7. COLOR INPUT DATA REFERENCE………………………………………………………	12

3-8. POWER SEQUENCE……………………………………………………………………….. 13

4.OPTICAL SPECIFICATIONS…………………………………………………………… 14

5.MECHANICAL CHARACTERISTICS…………………………………………………. 17

6.RELIABLITY……………………………………………………………………………… 20

7.INTERNATIONAL STANDARDS………………………………………………………. 21

7-1. SAFETY…………………………………………………………………..………………...… 21

7-2. ENVIRONMENT……………………………………………………………..…………...…. 21

8.PACKING………………………………………………………………………...……….. 22

8-1. DESIGNATION OF LOT MARK………………………………………………….………… 22

8-2. PACKING FORM…………………………………………………………………..………… 22

9.PRECAUTIONS…………………………………………………………………………… 23

APPENDIX A. LGD PROPOSAL FOR SYSTEM COVER DESIGN………………...……………..……. 25

APPENDIX B. ENHANCED EXTENDED DISPLAY IDENTIFICAION DATA….…………………….….. 30

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LP156WHB

Liquid Crystal Display

Product Specification

Record of Revisions

	Revision No	Revision Date	Page	Description	EDID
					version
	0.0	Jan. 06. 2014	All	First Draft (Preliminary Specification)	0.0

Ver. 0.0	Jan. 06, 2014	3 / 30

LP156WHB

Liquid Crystal Display

Product Specification

1. General Description

The LP156WHB 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 LP156WHB has been designed to apply the interface method that enables low power, high speed, low EMI. The LP156WHB 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 LP156WHB characteristics provide an excellent flat display for office automation products such as Notebook PC.

Userconnector 40

Pin

I2C	EEPROM	1	1366
	for EDID & T-Con

			I2C				TFT-LCD Panel
	LVDS			Data Signal			(1366 x RGB x 768)
			Timing
		Controller
							768
		DVCC	Gate
			Signal
				DVCC, AVDD ,Vcom,
	VCC						Source Driver
		Power Block		Gamma, Gate Signal
	VLED			VOUT_LED
	LED_EN	LED Driver		LED Cathode			LED Backlight
	PWM

General Features

Active Screen Size	15.6 inches diagonal
Outline Dimension	359.5(H, Typ.) × 217.2(V, Typ.) × 3.80(D, Max.) [mm] (with PCBA)
Pixel Pitch	0.252 mm 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 2.8W (Typ.) Logic : 0.7W (Typ. @ Mosaic), B/L : 2.1W (Typ.)
Weight	400g (Max.)
Display Operating Mode	Normally white
Surface Treatment	Glare treatment (3H) of the front Polarizer
RoHS Compliance	Yes
BFR / PVC / As Free	Yes for all

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LP156WHB

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	2 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.

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

								90% 80%
							60		60%
	Wet Bulb					50
	Temperature [ ]
					40				40%
				30
			20						20%
		10
	0
									10%
-20	0	10	20	30	40	50	60	70	80

Humidity[(%)RH]

Storage

Operation

Dry Bulb Temperature [ ]

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LP156WHB

Liquid Crystal Display

Product Specification

3. Electrical Specifications

3-1. LCD Electrical Characteristics

Table 2. LCD ELECTRICAL CHARACTERISTICS

				Values
Parameter		Symbol				Unit	Notes
			Min	Typ	Max
Power Supply Input Voltage		VCC	3.0	3.3	3.6	V	1
Permissive Power Supply Input Ripple		VCCrp	-	-	100	mVp-p
Power Supply Input Current	Mosaic	ICC	-	220	255	mA
							2
Power Consumption		PCC	-	0.7	0.8	W
Power Supply Inrush Current		ICC_P	-	-	1.5	A	3
Differential Impedance		ZLVDS	90	100	110	Ω

Note)

1.The measuring position is the connector of LCM and the test conditions are under 25 , fv = 60Hz

2.The specified ICC current and power consumption are under the VCC = 3.3V , 25 , fv = 60Hz condition and Mosaic pattern.

3. The VCC rising time is same as the minimum of T1 at Power on sequence.

Rising time				3.3V
	90%
VCC

0V 10%

0.5ms

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LP156WHB

Liquid Crystal Display

Product Specification

3-2. LED Backlight Electrical Characteristics

Table 3. LED B/L ELECTRICAL CHARACTERISTICS

					Values
	Parameter		Symbol				Unit	Notes
				Min	Typ	Max
	LED Power Input Voltage		VLED	7.0	12.0	21.0	V	1
	LED Power Input Current		ILED	-	175	193	mA
								2
	LED Power Consumption		PLED	-	2.1	2.3	W
	LED Power Inrush Current		ILED_P	-	-	1.5	A	3
	PWM Duty Ratio			5	-	100	%	4
	PWM Jitter			0	-	0.2	%	5
	PWM Frequency		FPWM	200	-	1000	Hz	6
	PWM	High Level Voltage	VPWM_H	2.5	-	3.6	V
		Low Level Voltage	VPWM_L	0	-	0.3	V
		High Voltage	VLED_EN_H	2.5	-	3.6	V
	LED_EN
		Low Voltage	VLED_EN_L	0	-	0.3	V
	Life Time			12,000	-	-	Hrs	7

Note)

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

2.The current and power consumption with LED Driver are under the VLED = 12.0V , 25 , PWM Duty 100% and White pattern with the normal frame frequency operated(60Hz).

3.The VLED rising time is same as the minimum of T13 at Power on sequence.

12.0V

Rising time	90%
VLED

0V 10%

0.5ms

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

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

6.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.

7.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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LP156WHB

Liquid Crystal Display

Product Specification

3-3. Interface Connections

Table 4. MODULE CONNECTOR PIN CONFIGURATION (CN1)

Pin

Symbol

Description

Notes

1

NC

No Connection

2

VCC

LCD Logic and driver power (3.3V Typical)

3

VCC

LCD Logic and driver power (3.3V Typical)

4

V EDID

DDC power (3.3V)

5

NC

No Connection

6

CLK EDID

DDC clock

7

DATA EDID

DDC data

8

X0-

Negative LVDS differential data input for pixel

9

X0+

Positive LVDS differential data input for pixel

10

GND

High speed ground

11

X1-

Negative LVDS differential data input for pixel

[Connector]

12

X1+

Positive LVDS differential data input for pixel

LSM, GT05Q-40S-H10

13

GND

High speed ground

14

X2-

Negative LVDS differential data input for pixel

or equivalent

15

X2+

Positive LVDS differential data input for pixel

16

GND

High speed ground

17

XC-

Negative LVDS differential clock input for pixel

[Connector pin arrangement]

18

XC+

Positive LVDS differential clock input for pixel

Pin 40

Pin 1

19

GND

High speed ground

20

NC

No Connection

21

NC

No Connection

22

GND

High Speed Ground

23

NC

No Connection

24

NC

No Connection

25

GND

High Speed Ground

26

NC

No Connection

27

NC

No Connection

[EDID & LGD P-Vcom Share pin]

28

GND

High Speed Ground

1. Pin for EDID & P-Vcom : #6, #7

29

NC

No Connection

2. P-Vcom Address : 0101000x

30

NC

No Connection

31

BL_GND

LED Backlight ground

32

BL_GND

LED Backlight ground

33

BL_GND

LED Backlight ground

34

NC

No Connection

35

BL PWM

System PWM signal input for dimming

36

BL ENABLE

LED Backlight on/off control

37

NC

No Connection

38

VLED

LED Backlight power (12V Typical)

39

VLED

LED Backlight power (12V Typical)

40

VLED

LED Backlight power (12V Typical)

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Jan. 06, 2014

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LP156WHB

Liquid Crystal Display

Product Specification

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification
LVDS -	VDD=1.8V
|VID|
LVDS +
VCM	VIN_MAX VIN_MIN
# |VID| = |(LVDS+) – (LVDS-)|
# VCM = {(LVDS+) + (LVDS-)}/2
0V

Description	Symbol	Min	Typ	Max	Unit	Notes
LVDS Differential Voltage	|VID|	100	-	600	mV	-
LVDS Common mode Voltage	VCM	|VID| /2	1.2	VDD- |VID|/2	V	-
LVDS Input Voltage Range	VIN	0.3	-	VDD	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

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LP156WHB

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

Tclk

RCLK+

Tclk *4/7

Tclk *3/7

Tclk *1/7

RA+/-

R3

R2

R1

R0

G0

G5

R4

R3

R2

R1

R0

G0

R5

R4

MSB

R5

R4

RB+/-

G4

G3

G2

G1

B1

B0

G5

G4

G3

G2

G1

B1

B0

G5

R3

R2

R1

RC+/-

B5

B4

B3

B2

DE

VSYNC

HSYNC

B5

B4

B3

B2

DE

VSYNC

HSYNC

LSB

R0

Previous (N-1)th Cycle

Current (N)th Cycle

Next (N+1)th Cycle

< LVDS Data Format >

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LP156WHB

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 LVDS Tx/Rx for its proper operation.

Table 4. TIMING TABLE

ITEM	Symbol		Min	Typ	Max	Unit	Note
DCLK	Frequency	fCLK	-	76.32	-	MHz
	Period	tHP	1594	1610	1626
Hsync	Width	tWH	24	32	40	tCLK
	Width-Active	tWHA		1366
	Period	tVP	787	790	793
Vsync	Width	tWV	4	5	6	tHP
	Width-Active	tWVA		768
	Horizontal back porch	tHBP	160	164	168	tCLK
Data	Horizontal front porch	tHFP	44	48	52
Enable	Vertical back porch	tVBP	13	14	15	tHP
	Vertical front porch	tVFP	2	3	4

Notice. all reliabilities are specified for timing specification based on refresh rate of 60Hz. However, LP156WHB has a good actual performance even at lower refresh rate (e.g. 40Hz or 50Hz) for power saving Mode, whereas LP156WHB 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

Condition : VCC =3.3V

Low: 0.3VCC

DCLK	tCLK	0.5 Vcc

Hsync	tWH
Data Enable

tWV

Vsync

Data Enable

	tHP
tHBP	tWHA	tHFP
	tVP
t	tWVA	tVFP
VBP

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