LG Display LC420EUN-SFF1 Specification

( ) Preliminary Specification

(●) Final Specification

Title 42.0” WUXGA TFT LCD

LC420EUN

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER General

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420EUN

SUFFIX SFF1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J.T. Kim / Team Leader

REVIEWED BY

D.K. Yang / Project Leader

PREPARED BY

Y.M.Cho/ 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 /40

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 12

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

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 30

9-3 ELECTROSTATIC DISCHARGE CONTROL 31

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 31

9-5 STORAGE 31

9-7 OPERATING GONDITION GUIDE 31

Ver. 1.0

28

28

28

29

29

29

2 /40

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.1 Apr, 24, 2012 - Preliminary Specification(First Draft)

0.2 May, 31, 2012 4 Updated the General Features

6,7 Updated the Electrical Characteristics

0.3 Jul, 23, 2012 4 Updated the General Features

6,7 Updated the Table 2

15 Updated the Table 8 & notes

17 Updated the Table 10

40 Updated the Current status

1.0 Aug,08,2012 24,25 Updated 3D drawings

26 Updated Table 12

LC420EUN

Final Specification

Ver. 1.0

3 /40

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 350 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 9.0 Kg

Display Mode Transmissive mode, Normally black

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

Ver. 1.0

4 /40

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

Unit Note

Min Max

LCD Circuit VLCD -0.3 +14.0 VDC

Power Input Voltage

Driver VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON -0.3 +5.5 VDC

Driver Control Voltage

Brightness EXTVBR-B -0.3 +4.0 VDC

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

Value

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%

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 /40

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. 1.0

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

6 /40

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. 1.0

7 /40

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 GND

12 R1AN

13 R1AP

14 R1BN

15

16 R1CN

17 R1CP

18 GND

19 R1CLKN

20

21 GND
22 R1DN

23 R1DP

24
25
26

NC

NC

NC

NC

NC

NC

LVDS Select

ExtVBR-B

NC

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

R1BP

R1CLKP

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. 1.0

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 /40

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

ON/OFF

V

NC

NC

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 50 [KΩ] .

1

2

◆ Rear view of LCM

1

Ver. 1.0

…

14

<Master>

PCB

◆ Status

1

14

…

9 /40

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

※ Timing should be set based on clock frequency.

Ver. 1.0

10 /40

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420EUN

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 Pixel 2,0

Valid data

Pixel 1,0 Pixel 3,0

tHP

Invalid data

Invalid data

tHV

DE(Data Enable)

Ver. 1.0

1 1080

tVV

tVP

11 /40

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420EUN

Product Specification

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

0V

V

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 ΔVCM - 250 mV -

2) AC Specification

T

clk

LVDS Clock

A

LVDS Data

( Fclk = 1/Tc lk )

T

clk

A

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

tSKEW

tSKEW

t

SKEW_mintSKEW_max

80%

20%

t

RF

Description Symbol Min Max Unit notes

V

LVDS Differential Voltage

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

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

notes

2. If tRFisn’t enough, t

should be meet the range.

eff

TH

V

TL

SKEW

RF

eff

SKEW_EO

3. LVDS Differential Voltage is defined within t

Ver. 1.0

100 600 mV

-600 -100 mV

- |(0.2*T

260 |(0.3*T

|±360| - ps -

- |1/7* T

eff

Tested with Differential Probe

)/7| ps -

clk

)/7| ps 2

clk

| ps -

clk

3

12 /40

Product Specification

LC420EUN

LVDS Data

0V

(Differential)

LVDS CLK

0.5tui

360ps

tui

VTH

VTL

360ps

teff

tui : Unit Interval

0V

(Differential)

* This accumulated waveform is tested with differential probe

Ver. 1.0

13 /40

LC420EUN

Product Specification

3-5. Color Data Reference

The brightness of each primary color(red,green,blue) is based on the 8bit gray scale data input for the color.
The higher binary input, the brighter the color. Table 7 provides a reference for color versus data input.

Table 7. COLOR DATA REFERENCE

Input Color Data

Basic

Color

RED

Color

RED

MSB LSB

MSB LSB

GREEN

BLUE

MSB LSB

R7 R6 R5 R4 R3 R2 R1 R0 G7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0

Black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Red (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Green (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

Blue (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

Cyan 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Magenta 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

Yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

RED (000) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RED (001) 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

... ... ... ...

RED (254) 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

RED (255) 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

GREEN (000) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

GREEN

BLUE

Ver. 1.0

GREEN (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0

... ... ... ...

GREEN (254) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0

GREEN (255) 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

BLUE (000) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

BLUE (001) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1

... ... ... ...

BLUE (254) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0

BLUE (255) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1

14 /40

3-6. Power Sequence

3-6-1. LCD Driving circuit

LC420EUN

Product Specification

Power Supply For LCD

V

LCD

Interface Signal (Tx_clock)

0V

0V

User Control Signal

(LVDS_select, OPC Enable, ExtVBR-B)

Power for LED

Table 8. POWER SEQUENCE

Parameter

Min Typ Max

10%

90%

T1

T6

T2

30%

100%

Value

Valid Data

T3 T4

LED ON

90%

10%

T7

T5

Vcm : LVDS Common mode Voltage

Unit Notes

10%

Note :

Ver. 1.0

T1 0.5 - 20 ms 1

T2 0 - - ms 2

T3 400 - - ms 3

T4 200 - - ms 3

T5 1.0 - - s 4

T6 0 - T2 ms 5

T7 0 - - ms 7

1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.

2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.

3. The T3 / T4 is recommended value, the case when failed to meet a minimum specification,
abnormal display would be shown. There is no reliability problem.

4. T5 should be measured after the Module has been fully discharged between power off and on period.

5. If the on time of signals (Interface signal and user control signals) precedes the on time of Power (V
it will be happened abnormal display. When T6 is NC status, T6 doesn’t need to be measured.

7. It is recommendation specification that T7 has to be 0ms as a minimum value.

※ Please avoid floating state of interface signal at invalid period.
※ When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.

LCD

),

15 /40

3-6-2. Sequence for LED Driver

Power Supply For LED Driver

VBL

0V

10%

Product Specification

24V (typ.)

90%

LC420EUN

90%

T1 T2

VON/OFF

ExtVBR-B

3-6-3. Dip condition for LED Driver

VBL(Typ.) x 0.8

Table 9. Power Sequence for LED Driver

T4 T6

LED ON

T5

T3

V

BL

0 V

: 24V

Parameter

T1 20 - - ms 1

T2 500 - - ms

T3 10 - - ms

T4 0 - - ms

T5 - - 10 ms VBL(Typ) x 0.8

T6 500 - - ms 2

Min Typ Max

Values

Units Remarks

Notes : 1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time.

Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.

2. In T6 section, ExtVBR-B should be sustained from 5% to 100% .

Ver. 1.0

16 /40

LC420EUN

Product Specification

4. Optical Specification

Optical characteristics are determined after the unit has been ‘ON’ and stable in a dark environment at 25±2°C.
The values are specified at 50cm from the LCD surface at a viewing angle of F and q equal to 0 °.
FIG. 1 shows additional information concerning the measurement equipment and method.

Optical Stage(x,y)

LCD Module

Pritchard 880 or
equivalent

50cm

FIG. 1 Optical Characteristic Measurement Equipment and Method

Table 10. OPTICAL CHARACTERISTICS

Parameter Symbol

Contrast Ratio CR 1000 1400 - 1

Surface Luminance, white L

Luminance Variation

Response Time

Color Coordinates
[CIE1931]

Color Temperature 10,000 K

Color Gamut 68 %

2D

Viewing
Angle

3D Crosstalk 3D C/T - - - 8

Gray Scale - - - 7

(CR>10)

(CT≤10%)

Variation G to G

Gray to Gray (BW) G to G BW -

RED

GREEN

BLUE

WHITE

right(f=0°) qr (x axis)

left (f=180°) ql (x axis)
up (f=90°) qu (y axis)
down (f=270°) qd (y axis)

3D

up + down

d

WHITE

qu (y axis)

+qd (y axis)

2D 280 350 -

WH

3D 105 130

5P - - 1.3 3

σ

Rx

Ry

Gx

Gy 0.595

Bx

By

Wx

Wy

Ta= 25±2°C, V

Value

Min Typ Max

-

Typ

-0.03

89 - -

89 - -

89 - -

89 - -

9 - degree 8

6 9

8 12

0.647

0.339

0.308

0.151

0.059

0.281

0.288

=12.0V, fV=60Hz, Dclk=74.25MHz,

LCD

EXTVBR-B =100%

Unit Note

2

cd/m

ms 5

Typ

+0.03

degree 6

17 /40

2

4

Ver. 1.0

17 /40

Product Specification

Note : 1. Contrast Ratio(CR) is defined mathematically as :

CR(Contrast Ratio) = Maximum CRn (n=1, 2, 3, 4, 5)

CRn =

2. Surface luminance are determined after the unit has been ‘ON’ and 1 Hour after lighting the

backlight in a dark environment at 25±2°C. Surface luminance is the luminance value at center
1-point across the LCD surface 50cm from the surface with all pixels displaying white.
For more information see the FIG. 2.

3. The variation in surface luminance , d WHITE is defined as :
d WHITE(5P) = Maximum(L

Where L

For more information, see the FIG. 2.

4. Response time is the time required for the display to transit from any gray to white (Rise Time, TrR)

and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
※ G to GBWSpec stands for average value of all measured points.

5. G to G σis Variation of Gray to Gray response time composing a picture

Surface Luminance at position n with all white pixels

Surface Luminance at position n with all black pixels

n = the Position number(1, 2, 3, 4, 5). For more information, see FIG 2.

, L

, L

on4

, L

on5

on1

to L

are the luminance with all pixels displaying white at 5 locations .

on5

on1,Lon2

on3

Photo Detector : RD-80S / Field : 2 °

) / Minimum(L

on1,Lon2

, L

on3

, L

on4

, L

on5

)

LC420EUN

G to G (σ) =

√

Σ(Xi- u)

N

6. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are

determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which
is normal to the LCD module surface. For more information, see the FIG. 4.

7. Gray scale specification

Gamma Value is approximately 2.2. For more information, see the Table 11.

8. 3D performance specification is expressed by 3D luminance and 3D viewing angle.

Table 11. GRAY SCALE SPECIFICATION

Gray Level Luminance [%] (Typ)

L0 0.07

L15 0.27

L31 1.04

L47 2.49

L63 4.68

L79 7.66

L95 11.5

L111 16.1

L127 21.6

L143 28.1

L159 35.4

L175 43.7

L191 53.0

L207 63.2

L223 74.5

L239 86.7

L255 100

2

Xi = Individual Data
u = Data average
N : The number of Data

Ver. 1.0

18 /40

Product Specification

Measuring point for surface luminance & measuring point for luminance variation.

H

A

③②

LC420EUN

V

①

B

A : H / 4 mm

④

FIG. 2 5 Points for Luminance Measure

Response time is defined as the following figure and shall be measured by switching the input signal for
“Gray(N)” and “Gray(M)”.

TrR

100

90

⑤

TrD

B : V / 4 mm
@ H,V : Active Area

Ver. 1.0

Optical
Response

10

0

Gray(N)

N,M = Black~White, N<M

FIG. 3 Response Time

Gray(M)

Gray(N)

19 /40

Dimension of viewing angle range

LC420EUN

Product Specification

f

= 180°, Left

f

= 270°, Down

Normal

q

f

FIG. 4 Viewing Angle

E

Y

f

= 90°, Up

f

= 0°, Right

Ver. 1.0

20 /40

Product Specification

LC420EUN

LW-RW

LW-RB

LB-RW

LB-RB

(a) Test pattern image

< FIG. 6. Measurement configuration>

q

< FIG. 7. Positioning eyeglass >

2

6

4 5

7

1

9

(b) Measurement

position

Luminance

Lum( LE or RE, test pattern, number )

Measurement through
Left or Right eyeglass

< FIG. 8. notation of luminance

3

8

3D display

measurement >

LMS

Right or left eyeglass

( Circular polarizer )

(c) Setup

measurement

position

In order to measure 3D luminance, 3D crosstalk and 3D viewing angle, it need to be prepared as below;

1) Measurement configuration
4-Test pattern images. Refer to FIG 6.

-. LW-RW : White for left and right eye

-. LW-RB : White for left eye and Black for right eye

-. LB-RW : Black for left eye and white for right eye

-. LB-RB : Black for left eye and right eye

Image files where black and white lines are displayed on even or odd lines.

Luminance measurement system (LMS) with narrow FOV (field of view) is used. Refer to FIG 1.

2) Positioning Eyeglass (refer to appendix-VII for standard specification of eyeglass)

Find angle of minimum transmittance.
This value would be provided beforehand or measured by the following steps;

(i) Test image (LB-RW) is displayed.
(ii) Left eyeglass are placed in front of LMS and luminance is measured,

rotating right eyeglass such as FIG 7. The notation for luminance measurement is “Lum(LE, LB-RW,1)”.

(iii) Find the angle where luminance is minimum.

* Following measurements should be performed at the angle of minimum transmittance of eyeglass.

Ver. 1.0

21 /40

Product Specification

3) Measurement of 3D luminance
(i) Test image ( LW-RW ) is displayed.
(ii) Left or right eyeglass are placed in front of LMS successively and

luminance is measured at center 1 point where the notation for luminance measurement is
“Lum(LE, LW-RW,1)” or “Lum(RE, LW-RW,1).

4) Measurement of 3D crosstalk
(i) Test image ( LB-RW, LW-RB and LB-RB ) is displayed.
(ii) Right or left eyeglass are placed in front of LMS successively and

luminance is measured for position 1.
with rotating LMS or sample vertically.

Lum(LE, LB-RW,1) - Lum(LE, LB-RB,1)
Lum(LE, LW-RB,1) - Lum(LE, LB-RB,1)

or

Lum(RE, LW-RB,1) - Lum(RE, LB-RB,1)
Lum(RE, LB-RW,1) - Lum(RE, LB-RB,1)

5) Measurement of 3D Viewing Angle

3D viewing angle is the angle at which the 3D crosstalk is under 10%. The angles are

determined for the vertical or y axis with respect to the z axis which is normal to the LCD
module surface and measured for position 1. For more information , see the Fig 9

LC420EUN

Ver. 1.0

y axis

LB-RW LW-RB

LCM

Φyu(up)

Φyd (down)

LB-RB

(a) Test pattern image

(b) Measurement of 3D viewing angle (up/down)

< FIG. 9. Measurement of 3D crosstalk and 3D viewing angle >

S

M

L

z axis

L

M

S

LMS

22 /40

Product Specification

5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

LC420EUN

Outline Dimension

Bezel Area

Active Display Area

Weight

Horizontal

Vertical

Depth

Horizontal

Vertical

Horizontal

Vertical

9.0 Kg (Typ.), 9.5 kg (Max.)

958.0 mm

559.1 mm

9.9 mm

936.2 mm

530.2 mm

927.94 mm

521.96 mm

Note : Please refer to a mechanical drawing in terms of tolerance at the next page.

Ver. 1.0

23 /40

[ FRONT VIEW ]

LC420EUN

Product Specification

SET : TOP

Ver. 1.0

SET : DOWN

24 /40

[ REAR VIEW ]

LC420EUN

Product Specification

SET : TOP

Ver. 1.0

SET : DOWN

25 /40

Product Specification

6. Reliability

Table 13. ENVIRONMENT TEST CONDITION

No. Test Item Condition

1 High temperature storage test Ta= 60°C 240h

2 Low temperature storage test Ta= -20°C 240h

3 High temperature operation test Ta= 50°C 50%RH 240h

4 Low temperature operation test Ta= 0°C 240h

Wave form : random
Vibration level : 1.0Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z,

Each direction per 10 min

Shock level : 50Grms
Waveform : half sine wave, 11ms
Direction : ±X, ±Y, ±Z

One time each direction

5

6

Vibration test
(non-operating)

Shock test
(non-operating)

LC420EUN

7 Humidity condition Operation Ta= 40 °C ,90%RH

Altitude operating

8

storage / shipment

0 - 16,400 ft
0 - 40,000 ft

Note : Before and after Reliability test, LCM should be operated with normal function.

Ver. 1.0

26 /40

Product Specification

7. International Standards

7-1. Safety

a) UL 60065, Seventh Edition, Underwriters Laboratories Inc.

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

b) CAN/CSA C22.2 No.60065:03, Canadian Standards Association.

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

c) EN 60065:2002 + A11:2008, European Committee for Electrotechnical Standardization (CENELEC).

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

d) IEC 60065:2005 + A1:2005, The International Electrotechnical Commission (IEC).

Audio, Video and Similar Electronic Apparatus - Safety Requirements.

(Including report of IEC60825-1:2001 clause 8 and clause 9)

Notes

1. Laser (LED Backlight) Information

Class 1M LED Product

IEC60825-1 : 2001

Embedded LED Power (Class 1)

LC420EUN

2. Caution
: LED inside.

Class 1 laser (LEDs) radiation when open.

Do not open while operating.

7-2. EMC

a) ANSI C63.4 “American National Standard for Methods of Measurement of Radio-Noise

Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz.”
American National Standards Institute (ANSI), 2003.

b) CISPR 22 “Information technology equipment – Radio disturbance characteristics – Limit and

methods of measurement." International Special Committee on Radio Interference
(CISPR), 2005.

c) CISPR 13 “Sound and television broadcast receivers and associated equipment – Radio disturbance

characteristics – Limits and method of measurement." International Special Committee on Radio
Interference (CISPR), 2006.

7-3. Environment

a) RoHS, Directive 2002/95/EC of the European Parliament and of the council of 27 January 2003

Ver. 1.0

27 /40

8. Packing

8-1. Information of LCM Label

a) Lot Mark

A B C D E F G H I J K L M

A,B,C : SIZE(INCH) D : YEAR
E : MONTH F ~ M : SERIAL NO.

Note

1. YEAR

Year

Product Specification

201320122011

2014E2015

2016G2017H2018J2019

LC420EUN

2020

Mark

CBA

D

F

2. MONTH

Month

Mark

Apr5May

4

Jun7Jul8Aug9Sep

6

b) Location of Lot Mark

Serial NO. is printed on the label. The label is attached to the backside of the LCD module.
This is subject to change without prior notice.

8-2. Packing Form

a) Package quantity in one Pallet : 36 pcs

b) Pallet Size : 1300 mm(W) X 1140 mm(D) X 803 mm(H)

K

Oct

A

Nov

B

DecMarFebJan

C321

Ver. 1.0

28 /40

LC420EUN

Product Specification

9. Precautions

Please pay attention to the followings when you use this TFT LCD module.

9-1. Mounting Precautions

(1) You must mount a module using specified mounting holes (Details refer to the drawings).
(2) You should consider the mounting structure so that uneven force (ex. Twisted stress) is not applied to the

module. And the case on which a module is mounted should have sufficient strength so that external
force is not transmitted directly to the module.

(3) Please attach the surface transparent protective plate to the surface in order to protect the polarizer.

Transparent protective plate should have sufficient strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature specification.
(5) Acetic acid type and chlorine type materials for the cover case are not desirable because the former

generates corrosive gas of attacking the polarizer at high temperature and the latter causes circuit break
by electro-chemical reaction.

(6) Do not touch, push or rub the exposed polarizers with glass, tweezers or anything harder than HB

pencil lead. And please do not rub with dust clothes with chemical treatment.

Do not touch the surface of polarizer for bare hand or greasy cloth.(Some cosmetics are detrimental

to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or other soft materials like

chamois soaks with petroleum benzine. Normal-hexane is recommended for cleaning the adhesives
used to attach front / rear polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer

(8) Wipe off saliva or water drops as soon as possible. Their long time contact with polarizer causes

deformations and color fading.

(9) Do not open the case because inside circuits do not have sufficient strength.

9-2. Operating Precautions

(1) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(2) Brightness depends on the temperature. (In lower temperature, it becomes lower.)

And in lower temperature, response time(required time that brightness is stable after turned on)
becomes longer

(3) Be careful for condensation at sudden temperature change.Condensation makes damage to polarizer or

electrical contacted parts. And after fading condensation, smear or spot will occur.
(4) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(5) Module has high frequency circuits. Sufficient suppression to the electromagnetic interference shall be

done by system manufacturers. Grounding and shielding methods may be important to minimized the
interference.

(6) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise, LCM can’t be operated

its full characteristics perfectly.

(7) A screw which is fastened up the steels should be a machine screw.

(if not, it can causes conductive particles and deal LCM a fatal blow)
(8) Please do not set LCD on its edge.
(9) The conductive material and signal cables are kept away from LED driver inductor to prevent abnormal

display, sound noise and temperature rising.

Ver. 1.0

29 /40

LC420EUN

Product Specification

9-3. Electrostatic Discharge Control

Since a module is composed of electronic circuits, it is not strong to electrostatic discharge. Make certain that
treatment persons are connected to ground through wrist band etc. And don’t touch interface pin directly.

9-4. Precautions for Strong Light Exposure

Strong light exposure causes degradation of polarizer and color filter.

9-5. Storage

When storing modules as spares for a long time, the following precautions are necessary.

(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent light. Keep the temperature

between 5°C and 35°C at normal humidity.

(2) The polarizer surface should not come in contact with any other object.

It is recommended that they be stored in the container in which they were shipped.
(3) Storage condition is guaranteed under packing conditions.
(4) The phase transition of Liquid Crystal in the condition of the low or high storage temperature will be

recovered when the LCD module returns to the normal condition.

9-6. Operating condition guide

(1) The LCD product should be operated under normal conditions. Normal condition is defined as below;

- Temperature : 5 ~ 40 ℃, normal humidity

- Display pattern : continually changing pattern (Not stationary)

(2) If the product will be used in extreme conditions such as high temperature, display patterns or operation

time etc..,
It is strongly recommended to contact LGD for Qualification engineering advice. Otherwise, its reliability
and function may not be guaranteed. Extreme conditions are commonly found at Airports, Transit Stations,
Banks, Stock market, and Controlling systems. The LCD product should be applied by global standard

environment. (refer ETSI EN 300, IEC 60721)

Ver. 1.0

30 /40

# APPENDIX-I

■ Pallet Ass’y

LC420EUN

Product Specification

Ver. 1.0

NO. DESCRIPTION MATERIAL

1 LCD Module 42INCH

2 BAG AL BAG

3 TAPE MASKING 20MMX50M

4 PALLET Plywood 1300X1140X120mm

5 PACKING,BOTTOM PAPER

6 PACKING,TOP PAPER

7 ANGLE,PACKING PAPER

8 BAND PP

9 ANGLE.COVER PAPER

10 BAND,CLIP STEEL or PP

11 LABEL YUPO 80G 100X70

31 /40

# APPENDIX- II-1

■ LCM Label

LC420EUN

Product Specification

Model

UL, TUV Mark

LGD Logo

LC420EUN
(SF)(F1)

RoHS Verified

X X X X X X X X X X X X X X X X X

MADE IN KOREA

Serial No.

Origin

Ver. 1.0

32 /40

# APPENDIX- II-2

■ Pallet Label

LC420EUN

Product Specification

LC420EUN

SFF1

36 PCS

MADE IN KOREA

001/01-01

XXXXXXXXXXXXX XXX

RoHS Verified

Ver. 1.0

33 /40

Product Specification

# APPENDIX- III-1

■ Required signal assignment for Flat Link (Thine : THC63LVD103) Transmitter(Pin7= “L” or “NC”)

LC420EUN

Host System

30 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6
RED7
RED8

RED9
GREEN0
GREEN1
GREEN2
GREEN3
GREEN4
GREEN5
GREEN6
GREEN7
GREEN8
GREEN9

BLUE0
BLUE1
BLUE2
BLUE3
BLUE4
BLUE5
BLUE6
BLUE7
BLUE8
BLUE9

Hsync
Vsync

Data Enable

CLOCK

THC63LVD103
or Compatible

33
34
35
36
37
38
59
61
4
5
40
41
42
44
45
46
62
63
6
8
48
49
50
52
53
54
64
1
9
11
55
57
58
12

TA-

TA+

TB-

TB+

TC-

TC+

TCLK-

TCLK+

TD-

TD+

31

30

29

28

25

24

23

22

21

20

GND

FI-RE51S-HF

12

13

14

15

16

17

19

20

22

23

7

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

VESA/ JEIDA

Note: 1. The LCD module uses a 100 Ohm[Ω] resistor between positive and negative lines of each receiver

input.

2. Refer to LVDS Transmitter Data Sheet for detail descriptions. (THC63LVD103 or Compatible)

3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data.

Ver. 1.0

34 /40

Product Specification

# APPENDIX- III-2

■ Required signal assignment for Flat Link (Thine : THC63LVD103) Transmitter(Pin7= “H” )

LC420EUN

Host System

30 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6
RED7
RED8

RED9
GREEN0
GREEN1
GREEN2
GREEN3
GREEN4
GREEN5
GREEN6
GREEN7
GREEN8
GREEN9

BLUE0
BLUE1
BLUE2
BLUE3
BLUE4
BLUE5
BLUE6
BLUE7
BLUE8
BLUE9

Hsync

Vsync

Data Enable

CLOCK

THC63LVD103
or Compatible

4
5
59
61
33
34
35
36
37
38
6
8
62
63
40
41
42
44
45
46
9
11
64
1
48
49
50
52
53
54
55
57
58
12

TA-

TA+

TB-

TB+

TC-

TC+

TCLK-

TCLK+

TD-

TD+

31

30

29

28

25

24

23

22

21

20

VCC

FI-RE51S-HF

12

13

14

15

16

17

19

20

22

23

7

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

VESA /JEIDA

Note :1. The LCD module uses a 100 Ohm[Ω] resistor between positive and negative lines of each receiver

input.

2. Refer to LVDS Transmitter Data Sheet for detail descriptions. (THC63LVD103 or Compatible)

3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data.

Ver. 1.0

35 /40

Product Specification

# APPENDIX- IV

■ LVDS Data-Mapping Information (8 Bit )

1) LVDS Select : “H” Data-Mapping (JEIDA format)

RCLKP

RCLKM

LC420EUN

RAP

RBP

RCP

RDP

R17 R16 R15 R14G12 R13R12’ R12R13’ G12”

B12 G17 G16 G15B13 G14G13’ G13G14’ B13”

V

SYNCHSYNC

B17 B16DE B15B14’ B14B15’ DE”

B11 B10 G11 G10X R11R10’ R10R11’ X”

2) LVDS Select : “L” Data-Mapping (VESA format)

RCLKP

RCLKM

RAP

RBP

R15 R14 R13 R12G10 R11R10’ R10R11’ G10”

B10 G15 G14 G13B11 G12G11’ G11G12’ B15”

Ver. 1.0

RCP

RDP

V

SYNCHSYNC

B15 B14DE B13B12’ B12B13’ DE”

B17 B16 G17 G16X R17R16’ R16R17’ X”

36 /40

Product Specification

# APPENDIX- V

■ Option Pin Circuit Block Diagram

1) Circuit Block Diagram of LVDS Format Selection pin

LVDS Select Pin : Pin 7

1KΩ

LVDS Select

(Pin 7)

LC420EUN

LVDS Select

50KΩ

ASIC

(TCON)

System Side LCM Side

2) Circuit Block Diagram of OPC Enable Selection pin

OPC Enable Pin : Pin 10

R1

OPC_Enable

(Pin 10)

1KΩ

System Side

R1 ≤ 1KΩ

OPC_Enable

50KΩ

ASIC

(TCON)

Ver. 1.0

LCM Side

37 /40

Product Specification

# APPENDIX- VI

■ Scanning and OPC Design Guide

◊ When OPC Enable is “L", OPC Output = System Dimming.

OPC Output( PWM Signal) is synchronized with V-Sync Freq. of System in T-Con Board.

(4pin)
#1 : PWM_TOUT #1
#2 : PWM_TOUT #2
#3 : PWM_TOUT #3
#4 : GND

(51pin)

#8 : Ext_PWM
#10 : OPC_EN

#1

#4

#1 51

LC420EUN

LCM T-con Board

T-Con

CNT1 51pin

#1#4

B/L Signal

Generation

Block

LED

Driver

14pin

◊ PWM Specification ( VDD = 3.3V ) @ OPC

1. PWM High Voltage Range : 2.5V~3.6V

2. PWM Low Voltage Range : 0.0V~0.8V

EXTVBR-B

Frequency

50 Hz for PAL
60 Hz for NTSC

CNT4

System
Main IC

(PWM Generator)

<With Driver Model>

VDD

VDD*0.9

OPC On

3.3V

OPC Off

Chassis

Rising Time

Rising Time MAX 10.0 μs

Falling Time MAX 10.0 μs

Ver. 1.0

Falling Time

VDD*0.1

0

38 /40

Product Specification

# APPENDIX- VII

■ Standard specification of Eyeglasses

This is recommended data of Eyeglasses for LC420EUN-SFF1 model. (details refer to table)

For each item, depending on the eyeglass manufacturer tolerances may occur, this tolerance can

affect 3D performance. (3D Crosstalk, 3D luminance, 3D viewing angle)

<Table. Standard specification of Eyeglasses>

Design item of Eyeglasses Left Right Remark

LC420EUN

Optical

axis

Retardation

value

a) Slow axis of retarder

b) Transmission axis of polarizer

Retarder 125nm @550nm

※Recommended polarizer

Polarization efficiency: more than 99.90%

90˚

Bottom

Bottom

POL

POL

0˚

0˚0˚

Cell Patterned

Cell Patterned

Top

Top

POL

POL

90˚90˚

Patterned

Patterned

retarder

retarder

retarder

retarder

-45
135

135˚

135˚

135˚

45

45˚

45˚

45˚

45˚45

-45˚ 45˚

0˚ 0˚

+λ/4

˚

˚

˚

˚

-λ/4

-λ/4

+λ/4

Left eye

Left eyeLeft eye

Refer to

drawing

Retarder

Retarder

Polarizer

Polarizer

Right eye

Right eyeRight eye

Direction from viewer

a) Slow axis of retarder

a) Slow axis of retarder

b) Transmission axis of polarizer

b) Transmission axis of polarizer

Ver. 1.0

-45˚

-45˚

Left Right

Left Right

(b) Configuration of Eyeglasses

<Drawing. Information of optical axis>

45˚

45˚

0˚ 0˚

0˚ 0˚

Left Right

Left Right

39 /40

Product Specification

# APPENDIX- Ⅷ

■ White Uniformity

This is only the reference white uniformity for LC420EUN-SFF1 model.

1. Measurement Condition
Surface luminance is determined after the unit has been ‘ON’ and 1 Hour after lighting
the backlight in a dark environment at 25±2°C.
Where L1 to L9 are the luminance with all pixels displaying white at 9 locations .

2. Sampling Size : 5 pcs

3. Measurement Method : refer to below.

Optical Stage (x,y)

LCD Module

Pritchard 880 or
equivalent

LC420EUN

Vertical Size X 3

4. Measurement location: refer to below.

H

A

D

V

C

②

③ ④

①

⑧⑦ ⑨

B

⑥⑤

A : H / 2 mm
B : H / 9 mm
C : V / 2 mm
D : V / 9 mm
@ H,V : Active Area

5. Current Status

Below table is actual data of production on LGD RV Event Sample

No. L1 L2 L3 L4 L5 L6 L7 L8 L9

1

2

3

4

5

352 318 300 298 324 294 306 292 294

345 291 294 296 308 306 302 298 312

362 328 316 304 329 304 310 301 306

354 323 308 309 323 310 309 294 304

349 309 303 297 319 302 307 295 302

Ver. 1.0

40 /40