LG Display LC420EUN-SEF1 Specification

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LC420EUN

Product Specification

SPECIFICATION

FOR

APPROVAL

() Preliminary Specification
()Final Specification

Title 42.0” WUXGA TFT LCD

BUYER General

MODEL

APPROVED BY

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420EUN

SUFFIX SEF1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J.T. Kim / Team Leader

REVIEWED BY

Y.J. Heo / Project Leader

SIGNATURE

DATE

PREPARED BY

J.W.Yang / Engineer

TV Product Development Dept.

Please return 1 copy for your confirmation with

your signature and comments.

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SO

GS

34SIGNAL TIMING WAVEFORMS

12

8-1

DESIGNATION OF LOT MARK

29

9-4

PRECAUTIONS FOR STRONG LIGHT EXPOSURE

31

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LC420EUN

Product Specification

CONTENTS

Number ITEM

COVER

CONTENTS

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION

2AB

3 ELECTRICAL SPECIFICATIONS

3-1 ELECTRICAL CHARACTERISTICS

3-2 INTERFACE CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

-

3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

6 RELIABILITY

LUTE MAXIMUM RATIN

Page

1

2

4

5

6

6

8

11

15

16

18

24

27

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC 28

7-3 ENVIRONMENT 28

8 PACKING

8-2 PACKING FORM

9 PRECAUTIONS 30

9-1 MOUNTING PRECAUTIONS 30

9-2 OPERATING PRECAUTIONS 30

9-3 ELECTROSTATIC DISCHARGE CONTROL 31

9-5 STORAGE 31

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 31

9-7 OPERATING GONDITION GUIDE 31

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28

29

29

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Revision No. Revision Date Page Description

0.1 June, 01, 2011 - Preliminary Specification(First Draft)

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LC420EUN

Product Specification

RECORD OF REVISIONS

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backlight

system

The

matrix

employs

a-Si

Thin

Film

Transistor

as

the

active

element

g

gp p p

Enable

signal

Power Consumption

Total 54.5W(TBD) [Logic= 8W(TBD), LED Driver=46.5W (TBD, ExtVbr_B=100% )]

1. General Description

The LC420EUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)

.
It is a transmissive display type which is operating in the normally black mode. It has a 42.02 inch diagonally
measured active display area with WUXGA resolution (1080 vertical by 1920 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arrayed in vertical stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7Million colors.
It has been designed to apply the 8-bit 2-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,

h color depth and fast response time are important.

hi

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LC420EUN

Product Specification

.

LVDS

2Port

LVDS
Select

OPC

ExtV

BR-B

+12.0V

PWM_OUT

1~3

+24.0V, GND, On/Off

CN1

(51pin)

CN2

(8 pin)

LVDS 1,2

Option

I2C

PWM_OUT

1~3

EEPROM

SCL

Timing Controller

LVDS Rx + OPC + DGA

Power Circuit

SDA

Integrated

Block

LED Driver

Mini-LVDS(RGB)

Control
Signals

Power Signals

General Features

Active Screen Size 42.02 inches(1067.31mm) diagonal

Outline Dimension

960.4(H) Ý 560.4(V) X 9.9(B)/17.4 mm(D) (Typ.)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 Ý RGB Ý 1080 pixels)

[Gate In Panel]

G1080

Scanning Block 1

Scanning Block 2

Scanning Block 3

Pixel Pitch 0.4845 mm x 0.4845 mm

Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement

Color Depth 8bit, 16.7Million colors

2

Luminance, White 360 cd/m

Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))

Weight TBD Kg (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 10%)

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g

LCD Circuit

V

LCD

0.3

14.0

V

DC

g

p

gp

p

,

10

2. Absolute Maximum Ratings

The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
to the LCD module.

Table 1. ABSOLUTE MAXIMUM RATINGS

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LC420EUN

Product Specification

Parameter Symbol

Power Input Voltage

Driver Control Voltage

T-Con Option Selection Voltage VLOGIC -0.3 +4.0 VDC

Operating Temperature TOP 0+50

Stora

e Temperature TST -20 +60

Panel Front Temperature TSUR -+68

Operating Ambient Humidity H

Storage Humidity H

Note

1. Ambient temperature condition (Ta = 25 r 2 ¶C )

Driver V

ON/OFF V

Brightness EXTVBR-B 0.0 +3.6 VDC

BL -0.3 + 27.0 VDC

OFF / VON -0.3 +5.5 VDC

OP 10 90 %RH

ST 10 90 %RH

Value

Min Max

-

+

Unit Note

¶C

¶C

¶C

2. Temperature and relative humidity range are shown in the figure below.
Wet bulb tem

erature should be Max 39¶C, and no condensation of water.

3. Gravity mura can be guaranteed below 40¶C condition.

4. The maximum operating temperatures is based on the test condition that the surface temperature

of display area is less than or equal to 68¶C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68к. The range of operating temperature may be degraded in case of
improper thermal management in final product design.

90%

1

2,3

4

2,3

60

60%

40

50

40%

Humidity [(%)RH]

10%

Wet Bulb
Temperature [

0

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¶C]

30

20

10 20 30 40 50 60 70 800-20
Dry Bulb Temperature [¶C]

Storage

Operation

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3-1. Electrical Ch

y

y

ppp

LCD

V

3. Electrical Specifications

aracteristics

It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight and LED Driver circuit.

Table 2. ELECTRICAL CHARACTERISTICS

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LC420EUN

Product Specification

Parameter Symbol

Circuit :

Power Input Voltage V

Power Input Current ILCD

Power Consumption P

Rush current I

Brightness Adjust for Back Light

Note

1. The specified current and power consumption are under the V

LCD 10.8 12.0 13.2 VDC

LCD 8.0(TBD) TBD Watt 1

RUSH --5.0A3

Ext_PWM

Ext_PWM
Frequency

Min T

-TBDTBDmA 1

-TBDTBDmA 2

5 (TBD) - 100 %

1 (TBD) - 100 %

40 50 Hz PAL

Value

pMax

60 80 Hz NTSC

=12.0V, Ta=25 r 2¶C, f

condition, and mosaic pattern(8 x 6) is displayed and fVis the frame frequency.

2. The current is specified at the maximum current pattern.

3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).

4. ExtV
After Driver ON signal is applied, ExtV
After that, ExtV

signal have to input available duty range and sequence.

BR-B

1% and 100% is possible

BR-B

should be sustained from 5% to 100% more than 500ms.

BR-B

For more information, please see 3-6-2. Sequence for LED Driver.

5. Ripple voltage level is recommended under ·5% of typical voltage

Unit Note

4

On duty

=60Hz

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

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Table 3. ELECTRICAL CHARACTERISTICS (Continue)

Parameter Symbol Unit Notes

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

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LC420EUN

Product Specification

Values

Min Typ Max

Power Supply Input Current IBL

Power Supply Input Current (In-Rush) In-rush - - 10(TBD) A Ext VBR-B = 100%

Power Consumption PBL -

Input Voltage for

Control System

Signals

LED :

Life Time 30,000 Hrs 2

On/Off

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

1.9(TBD)

-

45.5(TBD) 49.8(TBD)

2.1(TBD)

A1

VBL = 22.8V

3

W1

Notes :

1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 60
minutes at 25·2¶C. The specified current and power consumption are under the typical supply Input voltage
24V and V

BR (ExtVBR-B : 100%), it is total power consumption.

2. The life time (MTTF) is determined as the time which luminance of the LED is 50% compared to that of initial
value at the typical LED current (ExtVBR-B :100%) on condition of continuous operating in LCM state at
25·2¶C.

3. The duration of rush current is about 200ms. This duration is applied to LED on time.

4. Even though inrush current is over the specified value, there is no problem if I

2

T spec of fuse is satisfied.

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This LCD module employs two kinds of interface connection, 51

pin connector is used for the module

No

Symbol

Description

No

Symbol

Description

8

ExtVBR

B

Ext

PWM (f

)

34

GND

Ground

16

R1CN

FIRST LVDS Receiver Signal (C

)42NC or GND

No Connection or Ground

If not used, these pins are no connection. (Please see the

Appendix VI

for more information.)

3-2. Interface Connections

electronics and 14-pin connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN1): FI-R51S-HF(manufactured by JAE) or compatible

- Mating Connector : FI-R51HL(JAE) or compatible

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

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Product Specification

-

LC420EUN

1
2
3
4
5
6
7

9

10
11

12
13
14
15

17
18
19
20

21
22

23

24
25
26

NC
NC
NC
NC
NC
NC

LVDS Select

NC

OPC Enable ‘H’ = Enable , ‘L’ or NC = Disable

GND
R1AN
R1AP
R1BN
R1BP

R1CP

GND

R1CLKN

R1CLKP

GND
R1DN
R1DP

NC
NC

NC or GND

No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)
No Connection (Note 4)

ಫHಬ =JEIDA , ಫLಬ or NC = VESA

-

ernal

No Connection (Note 4)

Ground
FIRST LVDS Receiver Signal (A-)

FIRST LVDS Receiver Signal (A+)
FIRST LVDS Receiver Signal (B-)
FIRST LVDS Receiver Signal (B+)

FIRST LVDS Receiver Signal (C+)
Ground

FIRST LVDS Receiver Clock Signal(-)
FIRST LVDS Receiver Clock Signal(+)

Ground
FIRST LVDS Receiver Signal (D-)
FIRST LVDS Receiver Signal (D+)

No Connection
No Connection
No Connection or Ground

rom System

27
28

29
30

31
32

33

35
36
37
38
39

40
41

­43

44
45
46

47
48
49
50
51

-- -

NC
R2AN
R2AP
R2BN

R2BP

R2CN

R2CP

R2CLKN
R2CLKP

GND

R2DN

R2DP

NC

NC

NC or GND

GND Ground
GND Ground
GND Ground

NC No connection
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V
VLCD Power Supply +12.0V

No Connection
SECOND LVDS Receiver Signal (A-)

SECOND LVDS Receiver Signal (A+)
SECOND LVDS Receiver Signal (B-)

SECOND LVDS Receiver Signal (B+)
SECOND LVDS Receiver Signal (C-)

SECOND LVDS Receiver Signal (C+)

SECOND LVDS Receiver Clock Signal(-)
SECOND LVDS Receiver Clock Signal(+)

Ground
SECOND LVDS Receiver Signal (D-)

SECOND LVDS Receiver Signal (D+)
No Connection

No Connection

No Connection or Ground

Note

1. All GND(ground) pins should be connected together to the LCD module’s metal frame.

2. All V

LCD (power input) pins should be connected together.

3. All Input levels of LVDS signals are based on the EIA 644 Standard.

4. #1~#6 & #9 NC (No Connection): These pins are used only for LGD (Do not connect)

5. Specific pins(pin No. #10) are used for Scanning function of the LCD module.

6. Specific pin No. #44 is used for “No signal detection” of system signal interface.
It should be GND for NSB(No Signal Black) during the system interface signal is not.
If this pin is “H”, LCD Module displays AGP(Auto Generation Pattern).

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Mast

Pin No

Symbol

Description

Note

6

GND

3-2-2. Backlight Module

er

-LED Driver Connector
: 20022WR - H14B2(Yeonho) or Equivalent

- Mating Connector
: 20022HS - 14B2(Yeonho) or Equivalent

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

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LC420EUN

Product Specification

1
2
3
4
5

7
8

9
10
11

12
13
14

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

Backlight Ground

GND

GND

GND

GND

Status

ON/OFF

V

NC

NC

Backlight Ground

Backlight Ground

Backlight Ground

Backlight Ground

Back Light Status

Backlight ON/OFF control

Don’t care

Don’t care

Notes :1. GND should be connected to the LCD module’s metal frame.

2. Normal : Low (under 0.7V) / Abnormal : OPEN

3. Each impedance of pin #12 is over TBD [K] .

1

2

◆ Rear view

of LCM

PCB

1

14

…

1

14

…

<Master>

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Horizontal

fH57.3

67.570KHz

2

If

EMI

dditi

3-3. Signal Timing Specifications

Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.

Table 6. TIMING TABLE (DE Only Mode)

ITEM Symbol Min Typ Max Unit Note

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LC420EUN

Product Specification

Horizontal

Vertical

Frequency

Display

Period

Blank t

Total tHP 1060 1100 1200 tCLK

Display

Period

Blank t

Total tVP

ITEM Symbol Min Typ Max Unit Note

DCLK fCLK 63.00 74.25 78.00 MHz

Vertical fV

t

HV 960 960 960 tCLK 1920 / 2

HB 100 140 240 tCLK 1

t

VV 1080 1080 1080 Lines

VB

20

(228)

1100

(1308)

57

(47)

45

(270)

1125

(1350)

60

(50)

69

(300)

1149

(1380)

63

(53)

Lines 1

Lines

Hz

NTSC : 57~63Hz
(PAL : 47~53Hz)

2

Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).

you use spread spectrum of

, add some a

onal clock to minimum value for clock margin.

2. The performance of the electro-optical characteristics may be influenced by variance of the vertical

refresh rate and the horizontal frequency

ϡ Timing should be set based on clock frequency.

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0.5 VDD

Valid data

t

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

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LC420EUN

Product Specification

DE, Data

DCLK

First data

Second data

0.7VDD

0.3VDD

tCLK

Invalid data

Invalid data

DE(Data Enable)

Valid data

Pixel 0,0 Pixel 2,0

Pixel 1,0 Pixel 3,0

tHP

Invalid data

Invalid data

tHV

DE(Data Enable)

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1 1080

VV

tVP

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1) DC S

ificati

# V

{(LVDS+)

(

LVDS-)}/

2

2) AC Specification

A

Effecti

LVDS

t

|·360|

3-4-2. LVDS Input Signal Characteristics

pec

on

LVDS -

LVDS +

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LC420EUN

Product Specification

V

CM

=

0V

CM

+

V

IN _MAXVIN _MIN

Description Symbol Min Max Unit Note

LVDS Common mode Voltage V

LVDS Input Voltage Range V

CM

IN

1.0 1.5 V -

0.7 1.8 V -

Change in common mode Voltage VCM - 250 mV -

T

clk

LVDS Clock

A

LVDS Data

(F

= 1/T

)

clk

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

tSKEW

t

SKEW_mintSKEW_max

tSKEW

clk

T

clk

80%

20%

t

RF

Description Symbol Min Max Unit Note

High Threshold

LVDS Differential Voltage

Low Threshold

LVDS Clock to Data Skew t

LVDS Clock/DATA Rising/Falling time t

ve time of

LVDS Clock to Clock Skew (Even to Odd) t

Note

1. All Input levels of LVDS signals are based on the EIA 644 Standard.

2. If t

isn’t enough, t

RF

should be meet the range.

eff

3. LVDS Differential Voltage is defined within t

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V

TH

V

TL

SKEW

RF

eff

SKEW_EO

100 300 mV

-300 -100 mV

- |(0.25*T

260 |(0.3*T

)/7| ps -

clk

)/7| ps 2

clk

-ps -

- |1/7* T

eff

|ps -

clk

3

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