LG Display LC420DUN-SEU3 Specification

( ) Preliminary Specification

(●) Final Specification

Title 42.0” WUXGA TFT LCD

LC420DUN

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER LGE

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420DUN

SUFFIX SEU3(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J.T.KIM / Team Leader

REVIEWED BY

J.K. PARK/ Project Leader

PREPARED BY

J.K.KIM / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0

TV Product Development Dept.

LG Display Co., Ltd

1 / 38

Product Specification

CONTENTS

LC420DUN

Number ITEM

COVER

CONTENTS

RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION

2 ABSOLUTE MAXIMUM RATINGS

3 ELECTRICAL SPECIFICATIONS

3-1 ELECTRICAL CHARACTERISTICS

3-2 INTERFACE CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

3-4 SIGNAL TIMING WAVEFORMS

3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

6 RELIABILITY

Page

1

2

4

5

6

6

8

10

11

14

15

17

23

26

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC 27

7-3 ENVIRONMENT

8 PACKING

8-1 DESIGNATION OF LOT MARK

8-2 PACKING FORM

9 PRECAUTIONS 29

9-1 MOUNTING PRECAUTIONS 29

9-2 OPERATING PRECAUTIONS

9-3 ELECTROSTATIC DISCHARGE CONTROL 30

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE

9-5 STORAGE 30

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 30

9-7 OPERATING GONDITION GUIDE

Ver. 1.0

27

27

27

28

28

28

29

30

30

2 / 38

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

Final Specification -Oct. 16. 20121.0

LC420DUN

Ver. 1.0

3 / 38

LC420DUN

Product Specification

1. General Description

The LC420DUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
ba ck li g ht s ys te m . T h e ma tr i x em plo ys a -Si T h in Fi l m Tr ans ist or as th e a ct i ve ele men t.
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,
high color depth and fast response time are important.

EPI(RGB)

Control
Signals

Power Signals

LVDS

2Port

LVDS
Select

+12.0V

+24.0V, GND, On/off

Ext VBR-B

CN1

(51pin)

LVDS 1,2

Option
signal

I2C

EEPROM

SCL

Timing Controller

LVDS Rx + Scanning

Power Circuit

SDA

Integrated

Block

LED Driver

General Features

Active Screen Size 42.02 inches(1067.31mm) diagonal

Outline Dimension

983.0(H) X 576.0(V) X35.5(B) mm (Typ.)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

G1080

Back light Assembly

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

Luminance, White 300 cd/m2 (Center 1point ,Typ.)

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

Power Consumption Total 84.3W [Logic= 6.4W(TBD), LED Driver=77.9W (ExtVbr_B=100% )]

Weight 8.5 kg (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 1%)

Ver. 1.0

4 / 38

LC420DUN

Product Specification

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

Parameter Symbol

Unit Note

Min Max

Value

LCD Circuit V

LCD

-0.3 +14.0 V

DC

Power Input Voltage

Driver V

ON/OFF V

OFF

BL

/ V

ON

-0.3 + 27.0 V

-0.3 +5.5 V

DC

DC

Driver Control Voltage

Brightness EXTV

T-Con Option Selection Voltage V

Operating Temperature T

Storage Temperature T

Panel Front Temperature T

Operating Ambient Humidity H

Storage Humidity H

Note

1. Ambient temperature condition (Ta =

25 ± 2 °C )

BR-B

LOGIC

OP

ST

SUR

OP

ST

-0.3 +5.5 V

-0.3 +4.0 V

DC

DC

0 +50 °C

-20 +60 °C

- +68 °C 4

10 90 %RH

10 90 %RH

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 be degraded in case of
improper thermal management in final product design.

90%

1

2,3

2,3

Ver. 1.0

Wet Bulb
Temperature [°C]

20

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [°C]

30

40

50

60

60%

40%

10%

Storage

Operation

Humidity [(%)RH]

5 / 38

LC420DUN

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 LED
backlight and LED Driver circuit.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

Value

Min Typ Max

Circuit :

Power Input Voltage V

LCD

10.8 12.0 13.2 V

- 528 686 mA 1

Power Input Current I

LCD

- 789 1025 mA 2

Power Consumption P

Rush current I

Note

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

LCD

RUSH

6.34 8.23 Watt 1

- - 5.0 A 3

=12.0V, Ta=25 ± 2°C, fV=60Hz

LCD

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

Unit Note

DC

Ver. 1.0

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

6 / 38

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420DUN

Parameter Symbol

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

Power Supply Input Current IBL_A

Power Supply Input Current (In-Rush) Irush - - 10.0 A

Power Consumption PBL -

On/Off

Brightness Adjust ExtV

ExtVBR-B Frequency

ExtVBR-B Level

LED :

Life Time 30,000 50,000 Hrs 2

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

BR-B

PAL 100 Hz 3

NTSC 120 Hz 3

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

Min Typ Max

Values

-

5 - 100

1 - 100

3.2 3.4 A Ext V

77.9 82.5

Unit Notes

BR-B

VBL= 22.8V
Ext V

BR-B

W Ext V

%

Vdc

Vdc

BR-B

On Duty

HIGH : on duty

LOW : off duty

= 100%

= 100%

4

= 100%

6

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
24Vand VBR(Ext

V

BR-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. LGD recommend that the PWM freq. is synchronized with One time harmonic of V_sync signal of system.
Though PWM frequency is over 120Hz (max 252Hz), function of LED Driver is not affected.

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

5. Even though inrush current is over the specified value, there is no problem if I2T spec of fuse is satisfied.

6. 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.

Ver. 1.0

7 / 38

LC420DUN

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-pin connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN1): FI-RE51S-HF(manufactured by JAE) or IS050-C51B-C39(manufactured by UJU)

- 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

NC or GND

NC

NC

NC

NC

NC

LVDS Select

NC

NC

NC

GND

R1AN

R1AP

R1BN

R1BP

R1CN

R1CP

GND

R1CLKN

R1CLKP

GND
R1DN

R1DP

NC
NC

NC or GND

No Connection or Ground

No Connection (Note 4)

No Connection (Note 4)

No Connection (Note 4)

No Connection (Note 4)

No Connection (Note 4)

‘H’ =JEIDA , ‘L’ or NC = VESA

No Connection (Note 4)

No Connection (Note 4)

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-)

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

27

28

29

30

31

32

33

34

35

36

37

38

39
40

41

42

43

44

45

46
47
48

49

50
51

- - -

NC

R2AN

R2AP

R2BN

R2BP

R2CN

R2CP

GND

R2CLKN

R2CLKP

GND

R2DN

R2DP

NC

NC

NC or GND

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+)
Ground

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

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 & #8~#10 NC (No Connection): These pins are used only for LGD (Do not connect)

5. 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).

Ver. 1.0

8 / 38

Product Specification

3-2-2. Backlight Module

Master

-LED Driver Connector

: 20022WR - H14B2(Yeonho)

-.Mating Connector
: 20022HS - 14B2 or compatible

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

V

1

2

3

4

5

BL

V

BL

V

BL

V

BL

V

BL

Power Supply +24.0V

Power Supply +24.0V

Power Supply +24.0V

Power Supply +24.0V

Power Supply +24.0V

LC420DUN

6

7

8

9

10

11

12

13

14

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

Status Back Light Status 2

ON/OFF

V

NC Don’t care

EXTVBR-B External PWM

Backlight ON/OFF control

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

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

3. High : on duty / Low : off duty, Pin#14 can be opened. ( if Pin #14 is open , EXTVBR-B is 100% )

4. Each impedance of pin #12 and 14 is over 50 [KΩ] .

◆

Rear view of LCM

PCB

◆

1

Status

Ver. 1.0

1

14

…

1

14

…

9 / 38

LC420DUN

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. TIMING TABLE (DE Only Mode)

ITEM Symbol Min Typ Max Unit Note

Horizontal

Vertical

Frequency

Display

Period

Blank t

Total t

Display

Period

Blank t

Total t

t

HV

HB

HP

t

VV

VB

VP

960 960 960 tCLK 1920 / 2

100 140 240 tCLK 1

1060 1100 1200 tCLK

1080 1080 1080 Lines

20

(228)

1100

(1308)

45

(270)

1125

(1350)

69

(300)

1149

(1380)

Lines 1

Lines

ITEM Symbol Min Typ Max Unit Note

DCLK f

Horizontal f

Vertical f

CLK

H

V

63.00 74.25 78.00 MHz

57.3 67.5 70 KHz 2

57

(47)

60

(50)

63

(53)

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).

If you use spread spectrum of EMI, add some additional 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

※

Timing should be set based on clock frequency.

Ver. 1.0

10 / 38

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420DUN

Product Specification

DE, Data

DCLK

First data

Second data

0.7VDD

0.3VDD

t

CLK

Invalid data

Invalid data

DE(Data Enable)

0.5 VDD

Valid data

Pixel 0,0 Pixel 2,0

Valid data

Pixel 1,0 Pixel 3,0

t

HP

Invalid data

Invalid data

t

HV

DE(Data Enable)

Ver. 1.0

1 1080

t

VV

t

VP

11 / 38

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420DUN

Product Specification

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

0V

Description Symbol Min Max Unit Note

LVDS Common mode Voltage V

LVDS Input Voltage Range V

Change in common mode Voltage

Δ

2) AC Specification

LVDS Clock

A

LVDS Data

(F

T

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

t

SKEW

t

t

SKEW_mintSKEW_max

SKEW

CM

V

CM

1.0 1.5 V -

IN

0.7 1.8 V -

V

IN _ MAXVIN _MIN

VCM - 250 mV -

T

clk

= 1 /T

clk

)

clk

A

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

Effective time of LVDS t

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 tRFisn’t enough, t

should be meet the range.

eff

3. LVDS Differential Voltage is defined within t

Ver. 1.0

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

|± 360| - ps -

- |1/7* T

eff

| ps -

clk

3

12 / 38