LG Display LC420WUN-SCD1 Specification

LC420WUN

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 LC420WUN

SUFFIX SCD1(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

* RoHS will be verified by 12/24

APPROVED BY

S. J. LEE / Team Leader

REVIEWED BY

S. J. LEE / Project Leader

PREPARED BY

S. M. Lee / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1. 2

TV Products Development Dept.

LG Display LCD Co., Ltd

1 /37

Product Specification

CONTENTS

LC420WUN

Number ITEM

COVER 1

CONTENTS

RECORD OF REVISIONS

1 GENERAL DESCRIPTION

2 ABSOLUTE MAXIMUM RATINGS

3 ELECTRICAL SPECIFICATIONS

3-1 ELECTRICAL CHARACTERISTICS

3-2 INTERFACE/INVERTER CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

LVDS SIGNAL SPECIFICATIONS3-4

3-5 COLOR DATA REFERENCE

3-6 POWER SEQEUNCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

Page

2

3

4

5

6

6

8

10

11

14

15

17

21

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 ENVIRONMENT

8 PACKING

8-1 INFORMATION OF LCM LABEL

8-2 PACKING FORM

9 PRECAUTIONS

9-1 MOUNTING PRECAUTIONS

9-2 OPERATING PRECAUTIONS

9-3 ELECTROSTATIC DISCHARGE CONTROL

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE

9-5 STORAGE

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

Ver. 1. 2

24

25

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25

26

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27

27

27

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28

28

2 /37

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.0 Sep.1. .2009 - Preliminary Specification (First Draft)

Define Weight and Consumption-Oct.21. .20090.1

Final CAS-Dec. 21. 20091.0

1.1 Jan. 05. 2010 - Change the number of Page

- Update Power Consumption

31 Update global code

1.2 Jan. 07. 2010

7 Update Inverter Current (Typ.)

LC420WUN

Ver. 1. 2

3 /37

LC420WUN

Product Specification

1. General Description

The LC420WUN is a Color Active Matrix Liquid Crystal Display with an integral External Electrode Fluorescent
Lamp(EEFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
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 10-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 1.06Bilion (FRC) colors.
It has been designed to apply the 10-bit 2-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.

LVDS

LVDS 1,2

2Port

CN1

(51pin)

Option
signal

I2C

LVDS
Select

Bit
Select

+12.0V

EXTVBR-B

Status

+24.0V, GND

General Features

EEPROM

SCL

SDA

Timing Controller

LVDS Rx + DGA + ODC

Integrated

Power Circuit

Block

Inverter

42.02 inches(1067.31mm) diagonalActive Screen Size

983.0(H) x 576.0 (V) x 52.0 mm(D) (Typ.)Outline Dimension

0.4845 mm x 0.4845 mmPixel Pitch

1920 horiz. by 1080 vert. Pixels, RGB stripe arrangementPixel Format

10bit(D) , 1.06Billon colorsColor Depth

500 cd/m2 (Center 1point ,Typ.)Luminance, White

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

Mini-LVDS(RGB)

Control
Signals

Power Signals

3PinX1CN(High)

3PinX1CN(High)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

G1080

Back light Assembly

Ver. 1. 2

Total 147.8 W (typ.) (Logic=7.8W, Inverter=140W ) Power Consumption

9.1 Kg (Typ.) Weight

Transmissive mode, Normally blackDisplay Mode

Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 10%)Surface Treatment

4 /37

LC420WUN

Product Specification

2. Absolute Maximum Ratings

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

Table 1. ABSOLUTE MAXIMUM RATINGS

Parameter Symbol

Power Input Voltage

Inverter Control Voltage

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

T-Con LVDS Input Voltage VLVDS -0.3 +3.6 V

Operating Temperature TOP 0 +50 °C

Storage Temperature TST -20 +65 °C

Panel Front Temperature TSUR - +68 °C 4

Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

Note

1. Ambient temperature condition (Ta = 25 ± 2 °C )

LCD Circuit VLCD -0.3 +14.0 VDC

Inverter VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON -0.3 +5.5 VDC

Brightness VBR 0.0 +5.0 VDC

Value

Unit Note

Min Max

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

Wet bulb temperature 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 68℃. The range of operating temperature may degraded in case of
improper thermal management in final product design.

90%

1

2,3

2,3

Ver. 1. 2

Wet Bulb
Temperature [C]

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

20

30

40

50

60

60%

40%

10%

Storage

Operation

Humidity

[(%)RH]

5 /37

LC420WUN

Product Specification

3. Electrical Specifications

3-1. Electrical Characteristics

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

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

Circuit :

ILCDPower Input Current

Note

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

Value

MaxTypMin

=12.0V, Ta=25 ± 2°C, fV=60Hz

LCD

condition whereas 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.).

White : 1023 Gray
Black : 0 Gray

NoteUnit

VDC13.212.010.8VLCDPower Input Voltage

1mA845650455

2mA1242955668

1Watt7.8PLCDPower Consumption

3A5.0--IRUSHRush current

Ver. 1. 2

Mosaic Pattern(8 x 6)

6 /37

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420WUN

Parameter Symbol

Inverter :

Power Supply Input Voltage VBL 22.8 24.0 25.2 VDC 1

Power Supply
Input Current

Power Supply Input Current (In-Rush) IRUSH - - 11 A

Power Consumption PBL -

Input Voltage for

Control System

Signals

Lamp:

Lamp Voltage

Lamp Current

After Aging IBL_A - 5.8

Before Aging IBL_B - 7.0

On/Off

Brightness Adjust EXTVBR-B 20 - 100 %

PWM Frequency for
NTSC & PAL

Pulse Duty
Level (PWM)
(Burst mode)

On VON 2.5 - 5.0 VDC

Off VOFF -0.3 0.0 0.8 VDC

PAL 100 Hz 5

NTSC 120 Hz 5

High Level 2.5 - 5.0 VDC

Low Level 0.0 - 0.8 VDC

VOUT

IOUT

Min Typ Max

900 1050 1200 VRMS

126 136 146 mARMS

Values

140 160

6.7

7.5

Unit Note

A 1

A 2

VBL = 22.8V

EXTVBR-B = 100%

W 1

On Duty

High: Lamp on
Low : Lamp off

EXTVBR-B =100%

EXTVBR-B =100%

6

7

1

1

Discharge Stabilization Time Ts

Life Time 50,000 60,000 Hrs 4

1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120

Note

3 min 3

minutes at 25±2°C. The specified current and power consumption are under the typical supply Input voltage
24Vand VBR (EXTVBR-B : 100%), it is total power consumption.

2. Electrical characteristics are determined within 30 minutes at 25±2°C.

The specified currents are under the typical supply Input voltage 24V.

3. The brightness of the lamp after lighted for 5minutes is defined as 100%.
Ts is the time required for the brightness of the center of the lamp to be not less than 95% at typical current.

The screen of LCD module may be partially dark by the time the brightness of lamp is stable after turn on.

4. Specified Values are for a single lamp which is aligned horizontally.
The life time is determined as the time which luminance of the lamp is 50% compared to that of initial value
at the typical lamp current (EXTVBR-B :100%), on condition of continuous operating at 25± 2°C

5. LGD recommend that the PWM freq. is synchronized with Two times harmonic of Vsync signal of system.

6. The duration of rush current is about 10ms.

7. EXTVBR-B is based on input PWM duty of the inverter.

Ver. 1. 2

7 /37

LC420WUN

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14/12-pin connector is used for the integral backlight system.

3-2-1. LCD Module

-LCD Connector (CN1) : FI-R51S-HF(manufactured by JAE)
Refer to below table.

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

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No Symbol Description No Symbol Description

1

2

3

4

5

6

7

8

9

10
11

12

13

14

15

16

17

18

19

20
21
22

23

24
25
26

GND Ground

NC No Connection

NC No Connection

NC No Connection (Reserved for LGD)

NC No Connection (Reserved for LGD)

NC No Connection (Reserved for LGD)

LVDS Select

NC No Connection

NC No Connection

NC No Connection

GND

R1AN

R1AP

R1BN

R1BP

R1CN

R1CP

GND

R1CLKN
R1CLKP

GND
R1DN

R1DP

R1EN
R1EP

NC

‘H’ =JEIDA , ‘L’ or NC = VESA

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-)

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+)

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

No Connection

27

Bit Select

28

29

30

31

32

33

34

35

36

37

38

39
40

41

42

43

44

45

46
47
48

49

50
51

- - -

R2AN

R2AP

R2BN

R2BP

R2CN

R2CP

GND

R2CLKN

R2CLKP

GND

R2DN

R2DP

R2EN

R2EP

NC

NC

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

‘H’ or NC= 10bit(D) , ‘L’ = 8bit

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+)
Ground

SECOND LVDS Receiver Clock Signal(-)

SECOND LVDS Receiver Clock Signal(+)
Ground

SECOND LVDS Receiver Signal (D-)

SECOND LVDS Receiver Signal (D+)

SECOND LVDS Receiver Signal (E-)

SECOND LVDS Receiver Signal (E+)
No Connection

No Connection

Note

Ver. 1. 2

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

2. All VLCD (power input) pins should be connected together.

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

4. Specific pins(pin No. #2~#6) are used for internal data process of the LCD module.
These pins should be no connection.

5. LVDS pin (pin No. #24,25,40,41) are used for 10Bit(D) of the LCD module.
If used for 8Bit(R), these pins are no connection.

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).

8 /37

3-2-2. Backlight Module

LC420WUN

Product Specification

[ Master ]

-Inverter Connector : S14B-PH-SM4(JST)

- Mating Connector : PHR-14

[ Slave ]

-Inverter Connector : S12B-PH-SM3(JST)

-Mating Connector : PHR-12

Table 5. INVERTER CONNECTOR PIN CONFIGULATION

Pin No Symbol Description Master Slave Note

1

2

3

4

5

6

7

8

9

10

11

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

NC No Connection NC NC

1

12

13

V

EXTVBR-B External PWM EXTVBR-B - 3

14

Note

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

2. Normal : Low (under 0.7V) / Abnormal : High (upper 3.0V)

Please see Appendix IV-1 for more information.

3. The impedance of pin #12 is over 50[KΩ] & the impedance of Pin #13 is over 100[KΩ].

◆◆◆◆ Rear view of LCM

◆◆◆◆ Rear view of LCM

Ver. 1. 2

ON/OFF

Status Lamp Status Status - 2

Backlight ON/OFF control V

PCB

14

…

…

ON/OFF

1

Don’t care 3

PCB

…

…

1

<Master>

12

<Slave>

9 /37

LC420WUN

Product Specification

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 6-1. TIMING TABLE for NTSC (DE Only Mode)

Symbol

Display Period

Horizontal

Vertical tHP694511tVBBlank

Frequency

Blank

Total

DCLK

Horizontal

Vertical

tHV

tHB

tHP

fCLK

fH

fV

Table 6-2. TIMING TABLE for PAL (DE Only Mode)

Symbol

Display Period

tHV

NoteUnitMaxTypMinITEM

tclk-960-

tclk240140100

2200/2tclk120011001060

tHP-1080-tVVDisplay Period

tHP114911251091tVPTotal

148.5/2MHz7774.2570

KHz7067.565

Hz636057

NoteUnitMaxTypMinITEM

tclk-960-

Horizontal

Vertical tHP348270228tVBBlank

Frequency

Note

The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
The performance of the electro-optical characteristics may be influenced by variance of the vertical

refresh rate.

Ver. 1. 2

Blank

Total

DCLK

Horizontal

Vertical

tHB

tHP

fCLK

fH

fV

tclk240140100

2200/2tclk120011001060

tHP-1080-tVVDisplay Period

tHP142813501308tVPTotal

148.5/2MHz7774.2570

KHz7067.565

Hz535047

10 /37

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420WUN

Product Specification

DE, Data

DCLK

First data

Second data

0.7VDD

0.3VDD

tCLK

DE(Data Enable)

0.5 VDD

Invalid data

Invalid data

Valid data

Pixel 0,0

Valid data

Pixel 1,0

tHP

Pixel 2,0

Pixel 3,0

Invalid data

Invalid data

tHV

DE(Data Enable)

Ver. 1. 2

1 1080

tVV

tVP

11 /37

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420WUN

Product Specification

0V

LVDS Common mode Voltage

LVDS Input Voltage Range

2) AC Specification

LVDS Clock

LVDS Data

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

t

SKEW_mintSKEW_max

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

CM

A

(F

tSKEW

tSKEW

clk

T

clk

IN

= 1/T

V

CM

V

IN _ MAXVIN _MIN

NoteUnitMaxMinSymbolDescription

-V1.51.0V

-V1.80.7V

-mV250ΔVCMChange in common mode Voltage

T

clk

)

clk

A

80%

20%

t

RF

LVDS Differential Voltage

High Threshold

Low Threshold

LVDS Clock to Data Skew Margin

LVDS Clock/DATA Rising/Falling time

Effective time of LVDS

LVDS Clock to Clock Skew Margin (Even to Odd)

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

Note

2. If tRFisn’t enough, t

should be meet the range.

eff

3. LVDS Differential Voltage is defined within t

TH

TL

SKEW

RF

eff

t

SKEW_EO

260 ps(0.3*T

eff

Ver. 1. 2

1/7* T

NoteUnitMaxMinSymbolDescription

mV300100V

3

mV-100-300V

)/7|t

clk

)/7t

clk

-ps|(0.25*T

2

-ps±360t

T

clk

clk

-

12 /37