LG Display LC420EUN-FFM1 Specification

( ) Preliminary Specification

(●) Final Specification

Title 42.0” WUXGA TFT LCD

LC420EUN

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER Vestel

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420EUN

SUFFIX FFM1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J.T. Kim / Team Leader

REVIEWED BY

B.P CHOI / Project Leader

PREPARED BY

J.Y LEE/ Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 0.1

TV Product Development Dept.

LG Display Co., Ltd.

1 /38

Product Specification

CONTENTS

LC420EUN

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

11

12

15

16

18

24

27

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC 28

7-3 ENVIRONMENT

8 PACKING

8-1 DESIGNATION OF LOT MARK

8-2 PACKING FORM

9 PRECAUTIONS 30

9-1 MOUNTING PRECAUTIONS 30

9-2 OPERATING PRECAUTIONS

9-3 ELECTROSTATIC DISCHARGE CONTROL 31

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE

9-5 STORAGE 31

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

Ver. 0.1

28

28

28

29

29

29

30

31

31

2 /38

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.1 April, 21ST, 2013 - Preliminary Specification(First Draft)

Final Specification

LC420EUN

Ver. 0.1

3 /38

LC420EUN

Product Specification

1. General Description

The LC420EUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
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 41.92 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 16.7Milion 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.

LVDS

EEPROM

EPI(RGB)

2Port

LVDS
Select

OPC
Enable

ExtVBR-B

+12.0V

PWM_OUT

1~3

+24.0V, GND, On/Off

CN1

(51pin)

CN2

(4 pin)

LVDS 1,2

Option
signal

I2C

PWM_OUT

1~3

SCL

SDA

Timing Controller

LVDS Rx + OPC + DGA

Integrated

Power Circuit

Block

LED Driver

G1

Control
Signals

G1080

Power Signals

S1 S1920

General Features

Active Screen Size 41.92 inches(1064.77m) diagonal

Outline Dimension 958.0(H) × 559.1(V) X 9.9(B)/17.4 mm(D) (Typ.)

Source Driver Circuit

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

Scanning Block 1

Scanning Block 2

Scanning Block 3

Pixel Pitch 0.4833 mm x 0.4833 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 56.1W[Logic= 5.4W, LED Driver=50.7W (ExtVbr_B=100% )]

Weight 8.5 Kg

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze < 1%)

Ver. 0.1

4 /38

LC420EUN

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

Power Input Voltage

Driver Control Voltage

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

Operating Temperature TOP 0 +50 °C

Storage Temperature TST -20 +60 °C

Panel Front Temperature TSUR - +68 °C 4

Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

LCD Circuit VLCD -0.3 +14.0 VDC

Driver VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON -0.3 +5.5 VDC

Brightness EXTVBR-B -0.3 +4.0 VDC

STATUS [TBD] STATUS -0.3 +5.0 VDC

Value

Unit Note

Min Max

Note

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

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%

60

60%

1

2,3

2,3

Ver. 0.1

Wet Bulb
Temperature [°C]

20

10

0

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

30

40

50

40%

10%

Storage

Operation

Humidity

[(%)RH]

5 /38

LC420EUN

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

Circuit :

Power Input Voltage VLCD 10.8 12.0 13.2 VDC

Power Input Current ILCD

Power Consumption PLCD 5.40 7.02 Watt 1

Rush current IRUSH - - 5.0 A 3

ExtV

BR-B

Brightness Adjust for Back Light

ExtV

BR-B

Frequency

Pulse Duty Level
(PWM)

Note

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

High Level

Low Level

Min Typ Max

- 450 585 mA 1

- 685 890 mA 2

5 - 100 %

1 - 100 %

40 50/60 80 Hz

2.5 - 3.6 Vdc

0 - 0.8 Vdc

Value

Unit Note

=12.0V, Ta=25 ± 2°C, fV=60Hz

LCD

HIGH : on duty

LOW : off duty

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

On Duty

4

Ver. 0.1

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

6 /38

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

Values

Parameter Symbol

Min Typ Max

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

Unit Notes

LC420EUN

Power Supply Input Current IBL

Power Supply Input Current (In-Rush) In-rush - - 3.6 A

Power Consumption PBL -

Input Voltage for

Control System

Signals

LED :

Life Time 30,000 50,000 Hrs 2

On/Off

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

-

2.11

50.7 54.6

2.23

A 1

VBL = 22.8V
Ext VBR-B = 100%

3

W 1

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 VBR (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 I2T spec of fuse is satisfied.

Ver. 0.1

7 /38

LC420EUN

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-R51S-HF(manufactured by JAE) or GT05P-51S-H38(manufactured by LSM) 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

NC

NC

NC

NC

NC

LVDS Select

ExtVBR-B

NC

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

GND

R1AN

R1AP

R1BN

R1BP

R1CN

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)

‘H’ =JEIDA , ‘L’ or NC = VESA

External PWM (from System)

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

Ver. 0.1

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. #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.
If not used, these pins are no connection. (Please see the Appendix VI for more information.)

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 /38

Product Specification

3-2-2. Backlight Module

Master

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

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

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

LC420EUN

1

2

3

4

5

6

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

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

NC Don’t care

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

1

◆ Rear view of LCM

1

Ver. 0.1

…

14

<Master>

PCB

◆ Status

1

14

…

9 /38

LC420EUN

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 notes

Horizontal

Vertical

Frequency

Display

Period

Blank tHB 100 140 240 tCLK 1

Total tHP 1060 1100 1200 tCLK

Display

Period

Blank tVB

Total tVP

ITEM Symbol Min Typ Max Unit notes

DCLK fCLK 63.00 74.25 78.00 MHz

Horizontal fH 57.3 67.5 70 KHz 2

Vertical fV

tHV 960 960 960 tCLK 1920 / 2

tVV 1080 1080 1080 Lines

20

(228)

1100

(1308)

57

(47)

45

(270)

1125

(1350)

60

(50)

69

(300)

1149

(1380)

63

(53)

Lines 1

Lines

Hz

NTSC
(PAL)

2

notes: 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

3. Spread Spectrum Rate (SSR) for 50KHz ~ 100kHz Modulation Frequency(FMOD) is calculated by

(7 – 0.06*Fmod), where Modulation Frequency (FMOD) unit is KHz.
LVDS Receiver Spread spectrum Clock is defined as below figure

※ Timing should be set based on clock frequency.

Ver. 0.1

10 /38

LC420EUN

) to avoid

Product Specification

※ Please pay attention to the followings when you set Spread Spectrum Rate(SSR) and Modulation

Frequency(FMOD)

1. Please set proper Spread Spectrum Rate(SSR) and Modulation Frequency (FMOD) of TV system LVDS output.

2. Please check FOS after you set Spread Spectrum Rate(SSR) and Modulation Frequency(FMOD

abnormal display. Especially, harmonic noise can appear when you use Spread Spectrum under FMOD 30 KHz.

Ver. 0.1

11 /38