LG Display LP140WH4-TLA1 Specification

( ) Preliminary Specification

Suffix

TLA1

( ) Final Specification

◆

Title 14.0” HD TFT LCD

LP140WH4

Liquid Crystal Display

Product Specification

SPECIFICATION

FOR

APPROVAL

Customer LGE

MODEL

SIGNATUREAPPROVED BY

/

/

/

SUPPLIER LG Display Co., Ltd.

*MODEL LP140WH4

*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
H. J. Lee / Engineer

SIGNATURE

SIGNATURE

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

Ver. 1.0 Dec. 08, 2010

Products Engineering Dept.

LG Display Co., Ltd

1 / 31

Product Specification

SIGNAL TIMING WAVEFORMS

Contents

LP140WH4

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 SIGNAL TIMING SPECIFICATION
SIGNAL TIMING SPECIFICATIONS

COLOR INPUT DATA REFERNECE
POWER SEQUENCE
OPTICAL SFECIFICATIONS

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 Dec. 08, 2010

MECHANICAL CHARACTERISTICS

A APPENDIX. LPL PROPOSAL FOR SYSTEM COVER DESIGN

7-1 SAFETY
7-2 EMC 25

7-3 ENVIRONMENT 25

8-1 DESIGNATION 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 Specification

RECORD OF REVISIONS

LP140WH4

Liquid Crystal Display

Revision No Revision Date Page Description

0.0 Oct. 20, 2010 - First Draft (Preliminary Specification) 0.0

1.0 Dec. 08, 2010 14 Update Color Coordination
15 Update Gray scale specification
18 Front View Drawing update

30~32 EDID Update (Check Sum : 73) 1.0

EDID

ver

Ver. 1.0 Dec. 08, 2010

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LP140WH4

40

Source Driver

Power

AVCC, AVDD

Liquid Crystal Display

Product Specification

1. General Description

The LP140WH4 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 14.0 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 LP140WH4 has been designed to apply the interface method that enables low power, high
speed, low EMI. The LP140WH4 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 LP140WH4 characteristics provide an excellent flat display for office automation products such
as Notebook PC.

EEPROM Block

for EDID

User connector

LVDS

1port

VCC

Pin

VLED

LED_EN

PWM

Timing Control

Block

DVCC

Block

LED Driver

Block

CLKs

VGH, VGL, GMA

GIP CLKs, DSC

VOUT_LED

FB1~4

Control & Data Power

1

TFT-LCD Panel

(FHD, GIP, TN)

768

LED Backlight Ass’y

EDID signal & Power

General Features

Active Screen Size 14.0 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 200 cd/m2(Typ.5 point @ PWM Duty = 100%)
Power Consumption Total 3.7 W(Typ.) Logic : 1.0W (Typ.@ Mosaic), B/L : 2.7W (Ty
Weight 350g (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

323.5(H, typ) × 192.0(V, typ) × 5.2(D,max) [mm]

0.2265mm × 0.2265 mm

1366

(Bottom Bent)

p.@ VLED 12V )

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LP140WH4

90%80

%

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.

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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LP140WH4

LED Power Input Voltage

V

LED

7.0

12.0

21.0V5

Liquid Crystal Display

Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics

The LP140WH4 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 :

Power Supply Input Voltage VCC 3.0 3.3 3.6 V 1
Power Supply Input Current Mosaic ICC - 300 345 mA 2
Power Consumption PCC - 1.0 1.2 W 2
Power Supply Inrush Current ICC_P - - 1500 mA 3

Unit Notes

LVDS Impedance ZLVDS 90 100 110 Ω 4

BACKLIGHT : ( with LED Driver)

LED Power Input Current ILED - 225 245 mA 6
LED Power Consumption PLED - 2.7 2.9 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 V

WM Low Level Voltage V

P

PWM_H

PWM_L

3.0 - 5.3 V
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 12,000 - - Hrs 12

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Liquid Crystal Display

0.5ms

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.

. This Spec. is the max load condition for the cable impedance designing.

3

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.

LP140WH4

Rising time
Vcc

0V

10%

90%

3.3V

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
VLED

0V

10%

90%

12.0V

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.

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LP140WH4

16

GND

LCM Ground

16

GND

LCM Ground

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
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 Bist LCD Panel Self Test Enable
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

[Interface Chip]

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

2. System : SiW LVDSRx or equivalent

* Pin to Pin compatible with LVDS

[Connector]

UJU IS050-L40B-C10
LSMtron GT05Q-40S-H10 or equivalent

[Mating Connector]

20453-040T-0# series or equivalent

[Connector pin arrangement]

40

1

17 ORXC- Negative LVDS differential clock input
18 ORXC+ Positive LVDS differential clock input
19 GND LCM Ground
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
32
33
34 NC No Connection
35
36
37
38
39
40

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

PWM System PWM Signal input for dimming

LED_EN

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

VLED LED Backlight Power (7V-21V)

LED Backlight On/Off
No Connection

[LCD Module Rear View]

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Product Specification

3-3. LVDS Signal Timing Specifications

3-3-1. DC Specification

LP140WH4

Liquid Crystal Display

Description

Symb

ol

Min Max Unit Notes

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

VDS Input Voltage Range V

L

-3-2. AC Specification

3

CM

IN

0.6 1.8 V -

0.3 2.1 V -

Description Symbol Min Max Unit Notes

t

SKEW

- 400 + 400 ps

85MHz > Fclk ≥

LVDS Clock to Data Skew Margin

t

SKEW

- 600 + 600 ps

65MHz > Fclk ≥

65MHz

25MHz

LVDS Clock to Clock Skew Margin (Even
to Odd)

aximum deviation

M
of input clock frequency during SSC

Maximum modulation frequency
of input clock during SSC

Ver. 1.0 Dec. 08, 2010

t

SKEW_EO

F

DEV

F

MOD

- 1/7 + 1/7 T

-

± 3

clk

% -

- 200 KHz -

-

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Freq.

F

max

F

center

F

min

Product Specification

< Clock skew margin between channel >

LP140WH4

Liquid Crystal Display

F

* F

center

DEV

3-3-3. Data Format

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

VSYNCHSYNC

X

R5 R4

B0 G5

B7 B6

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

Current (Nth) Cycle

< LVDS Data Format >

Ver. 1.0 Dec. 08, 2010

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