LG Display LC420EUD-SDM1 Specification

( ) Preliminary Specification

(●) Final Specification

Title 42.0” WUXGA TFT LCD

LC420EUD

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER TOSHIBA

MODEL V33A00042500

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420EUD

SUFFIX SDM1(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

P.Y. Kim / Team Leader

REVIEWED BY

Y.J. Heo / 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.

0 /40

Product Specification

CONTENTS

LC420EUD

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 CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

3-4 LVDS SIGNAL SPECIFICATIONS

3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

Page

2

3

4

5

6

6

8

12

13

16

17

19

23

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC

7-3 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. 1.0

26

27

27

27

27

28

28

28

29

29

30

30

30

30

30

1 /40

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.1 Sep. 16.2010 - Preliminary Specification(First Draft)

0.2 Dec. 08.2010 7, 29 Update Electrical and Pallet ass’y specification

17 Change Optical specification

1.0 Feb. 07.2011 15, 39, 40 Update electrical power sequence and Response time

6 Update electrical specification

22, 23 Update mechanical drawing

CAS Version 1.0 Release

Final Specification

LC420EUD

Ver. 1.0

2 /40

LC420EUD

Product Specification

1. General Description

The LC420EUD is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
bac k li ght s y st em. T h e m a tr i x em plo ys a - Si T h in Fi l m T ra n s is t or as th e a c tiv e e lem e nt.
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 colors.
It has been designed to apply the 10-bit 4-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.

Mini-LVDS(RGB)

Control
Signals

Power Signals

Source Driver Circuit

S1 S

G1

TFT - LCD Panel

(

1920 × RGB × 1080 pixels)

[Gate In Panel]

G1080

LVDS

2Port

LVDS

2Port

LVDS
Select

L-DIM
Enable

Bit
Select

+12.0V

CN2

(41pin)

CN1

(51pin)

LVDS 3,4

LVDS 1,2

Option
signal

I2C

EEPROM

SCL

SDA

Timing Controller

LVDS Rx + L/D + DGA + ODC

Integrated

Power Circuit

Block

SIN, SCLK, V_Sync

+24.0V, GND, On/Off

ExtVBR-B

LED Driver

V : 8Block

Local Dimming :

General Features

Active Screen Size 42.02 inches(1067.31mm) diagonal

Outline Dimension 968.4(H) × 564.0(V) X 10.8(B)/18.3 mm(D) (Typ.)

Pixel Pitch 0.4845 mm x 0.4845 mm

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

Color Depth 10bit(D), 1.06Billon colors

Luminance, White 450 cd/m2 (Center 1point ,Typ.)

1920

H : 2Block

16 Block

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

Power Consumption Total 94.1W (TBD) [Logic= 8.6W, LED Driver=85.5W (ExtVbr_B=100% )]

Weight 8.8 Kg (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment

Hard coating(3H), Anti-reflection treatment of the front polarizer (Reflectance〈 2%)

Ver. 1.0

3 /40

LC420EUD

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

Note

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

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 0.0 +5.5 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 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]

4 /40

LC420EUD

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

Min Typ Max

Circuit :

Power Input Voltage VLCD 10.8 12.0 13.2 VDC

Power Input Current ILCD

Power Consumption PLCD 8.6 11.54 Watt 1

Rush current IRUSH - - 5.0 A 3

Note

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

- 715 929 mA 1

- 1030 1339 mA 2

Value

Unit Note

=12.0V, Ta=25 ± 2°C, fV=120Hz

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.).

White : 1023 Gray
Black : 0 Gray

Ver. 1.0

Mosaic Pattern(8 x 6)

5 /40

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420EUD

Parameter Symbol

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

Power Supply Input Current IBL

Power Supply Input Current (In-Rush) In-rush - - 5.93 A

Power Consumption PBL

On/Off

Input Voltage for

Control System

Signals

LED :

Life Time 30,000 50,000 Hrs 2

Brightness Adjust ExtVBR-B 1 - 100 % On Duty , 6

PWM Frequency for
NTSC & PAL

Pulse Duty Level
(PWM)

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

PAL 97 100 103 Hz 3

NTSC 117 120 123 Hz 3

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

Min Typ Max

-

-

-

Values

3.6

4.3

85.5 93.6

3.9

4.7

89.481.9

Unit Notes

A

A

W Scanning Off , 1

Vdc

Vdc

Scanning Off , 1

Scanning On , 1
(PWM On Duty)

VBL = 22.8V

Ext VBR-B = 100%, 4

Scanning On , 1

HIGH : on duty

LOW : off duty

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 (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. 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. Ext_PWM Signal have to input available duty range.
Between 99% and 100% ExtVBR-B duty have to be avoided. ( 99% < ExtVBR-B < 100%)
But ExtVBR-B 0% and 100% are available.

High

Available duty range

Low

0%

1%

Ver. 1.0

99% 100%Ext_PWM Input Duty

6 /40

LC420EUD

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, 51-pin connector and 41-pin connector are 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)
Refer to below and next Page table

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

Table 4-1. 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

Note

NC

NC

NC

SDA SDA

SCL SCL

WP WP (Write Protection)

LVDS Select

NC

NC

L-DIM Enable ‘H’ = Enable , ‘L’ or NC = Disable

GND

R1AN

R1AP

R1BN

R1BP

R1CN

R1CP

GND

R1CLKN

R1CLKP

GND
R1DN

R1DP

R1EN
R1EP

NC or GND

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)

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 or Ground

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~#3 & #8~#9 NC (No Connection): These pins are used only for LGD (Do not connect)

5. Specific pin (#10) is used for Local Dimming function of the LCD module.

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

6. 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.

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

8. Specific pin (pin No. #4, #5) is used for Controlling Local Dimming’s register in the LCM Module.

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 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

‘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 or Ground

No Connection or Ground

Ver. 1.0

7 /40

Product Specification

- LCD Connector (CN2) : FI-RE41S-HF (manufactured by JAE)

- Mating Connector : FI-RE41HL

Table 4-2. MODULE CONNECTOR(CN2) PIN CONFIGURATION

No Symbol Description No Symbol Description

1

2

3

4 NC

5

6

7

8

9

10

11

12

13 RB3P

14

15

16

17

18 RCLK3P

19

20

21

NC
NC

NC

NC

NC

NC

NC

GND

RA3N

RA3P

RB3N

RC3N

RC3P

GND

RCLK3N

GND

RD3N

RD3P

No connection 22

No connection 23

No connection 24 GND Ground
No connection

No connection

No connection 27

No connection 28

No connection 29 RB4P
Ground

THIRD LVDS Receiver Signal (A-)

THIRD LVDS Receiver Signal (A+)

THIRD LVDS Receiver Signal (B-)

THIRD LVDS Receiver Signal (B+)

THIRD LVDS Receiver Signal (C-)

THIRD LVDS Receiver Signal (C+)
Ground

THIRD LVDS Receiver Clock Signal(-)

THIRD LVDS Receiver Clock Signal(+)
Ground

THIRD LVDS Receiver Signal (D-)

THIRD LVDS Receiver Signal (D+)

25 GND Ground

26

30

31

32

33

34 RCLK4P

35

36

37

38

39

40 GND Ground

41 GND Ground

-

RE3N

RE3P

RA4N

RA4P

RB4N

RC4N

RC4P

GND

RCLK4N

GND

RD4N

RD4P

RE4N

RE4P

THIRD LVDS Receiver Signal (E-)

THIRD LVDS Receiver Signal (E+)

FORTH LVDS Receiver Signal (A-)

FORTH LVDS Receiver Signal (A+)

FORTH LVDS Receiver Signal (B-)

FORTH LVDS Receiver Signal (B+)

FORTH LVDS Receiver Signal (C-)

FORTH LVDS Receiver Signal (C+)
Ground

FORTH LVDS Receiver Clock Signal(-)

FORTH LVDS Receiver Clock Signal(+)
Ground

FORTH LVDS Receiver Signal (D-)

FORTH LVDS Receiver Signal (D+)

FORTH LVDS Receiver Signal (E-)

FORTH LVDS Receiver Signal (E+)

LC420EUD

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

2. LVDS pin (pin No. #22,23,38,39) are used for 10Bit(D) of the LCD module.
If used for 8Bit(R), these pins are no connection.

CN3

#1

#8

CN3

#1 #8

CN1 CN2

#1

CN1 CN2

#1 #51

#51 #1 #41

#1 #41

Rear view of LCM

Ver. 1.0

8 /40

Product Specification

3-2-2. Backlight Module

Master

-LED Driver Connector
: 20022WR - H14B1(Yeonho) or Equivalent

- Mating Connector
: 20022HS - 14B2 or Equivalent

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

LC420EUD

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

ON/OFF

V

NC Don’t care

EXTVBR-B External PWM 3

Backlight ON/OFF control

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

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

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] .

1

2

◆ Rear view of LCM

1

Ver. 1.0

…

14

<Master>

PCB

1

14

…

9 /40

LC420EUD

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 tHB 40 70 200 tCLK 1

Total tHP 520 550 680 tCLK

Display

Period

Blank tVB

Total tVP

ITEM Symbol Min Typ Max Unit Note

DCLK fCLK 66.97 74.25 78.00 MHz

Horizontal fH 121.8 135 140 KHz 2

Vertical fV

tHV 480 480 480 tCLK 1920 / 4

tVV 1080 1080 1080 Lines

20

(228)

1096

(1308)

108

(95)

45

(270)

1125

(1350)

120

(100)

86

(300)

1166

(1380)

122

(104)

Lines 1

Lines

NTSC :

Hz

108~122Hz

(PAL : 95~104Hz)

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 /40

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420EUD

Product Specification

DCLK

First data

Second data

Third data

Forth data

DE(Data Enable)

tCLK

0.5 VDD

Invalid data

Invalid data

Invalid data

Invalid data

DE, Data

Valid data

Pixel 0

Valid data

Pixel 1

Valid data

Pixel 2

Valid data

Pixel 3

Pixel 4

Pixel 5

Pixel 6

Pixel 7

0.7VDD

0.3VDD

Invalid data

Invalid data

Invalid data

Invalid data

DE(Data Enable)

Ver. 1.0

* tHB = tHFP + tWH +tHBP

* tVB = tVFP + tWV +tVBP

1 1080

tVV

tVP

11 /40

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420EUD

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

(F

= 1/T

)

clk

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

tSKEW

tSKEW

clk

T

clk

t

SKEW_mintSKEW_max

Description Symbol Min Max Unit Note

High Threshold

LVDS Differential Voltage

Low Threshold

LVDS Clock to Data Skew Margin t

LVDS Clock/DATA Rising/Falling time t

Effective time of LVDS t

LVDS Clock to Clock Skew Margin (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

clk

eff

T

clk

3

-

12 /40

Product Specification

360ps

LC420EUD

V+
data

Vcm

V­data

V+
clk

Vcm

0.5tui

tui

VTH

VTL

360ps

teff

tui : Unit Interval

V­clk

Ver. 1.0

13 /40

LC420EUD

Product Specification

3-5. Color Data Reference

The brightness of each primary color(red, green, blue) is based on the 10bit 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

Black

Red (1023)

Green (1023)

Blue (1023)

Cyan

Magenta

Yellow

White

RED (0000)

RED (0001)

RED

MSB LSB

R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 G9 G8 G7 G6 G5 G4 G3 G2 G1 G0 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

MSB LSB

GREEN

… ... ... ...

RED (1022)

RED (1023)

GREEN (0000)

1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 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

MSB LSB

GREEN

BLUE

Ver. 1.0

GREEN (0001)

...

GREEN (1022)

GREEN (1023)

BLUE (0000)

BLUE (0001)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0

... ... ...

0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 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 (1022)

BLUE (1023)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 0

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1

14 /40

3-6. Power Sequence

3-6-1. LCD Driving circuit

LC420EUD

Product Specification

Power Supply For LCD

V

LCD

Interface Signal (Tx_clock)

0V

0V

10%

User Control Signal

(LVDS_select, BIT _select, L-DIM Enable)

Power for LED

Table 8. POWER SEQUENCE

Parameter

Min Typ Max

90%

T1

T6

T2

30%

100%

T7

Value

Valid Data

T3 T4

LED ON

90%

10%

T8

T5

Vcm : LVDS Common mode Voltage

Unit Notes

10%

Note :

Ver. 1.0

T1 0.5 - 20 ms

T2 0 - - ms 2

T3 200 - - ms 3

T4 200 - - ms

T5 1.0 - - s

T6 - - T2 ms 5

T8 100 - - 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.

6. If there is no abnormal display, no problem.

7. It is recommendation specification that T8 has to be 100ms 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

1

3

4

6s--0.5T7

),

15 /40

3-6-2. Sequence for LED Driver

Power Supply For LED Driver

VBL

0V

10%

Product Specification

24V (typ.)

90%

LC420EUD

90%

VON/OFF

Ext-VBR-B

3-6-3. Dip condition for LED Driver

VBL(Typ.) x 0.8

T1 T2

T4

LED ON

T5

T3

V

BL

0 V

: 24V

Table 9. Power Sequence for LED Driver

Parameter

T1 20 - - ms 1

T2 500 - - ms

T3 10 - ms

T4 0 - - ms

T5 - - 10 ms VBL(Typ) x 0.8

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.

Ver. 1.0

16 /40

LC420EUD

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 distance 50cm from the LCD surface at a viewing angle of Φ and θ 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

Ta= 25±2°C, V

Table 10. OPTICAL CHARACTERISTICS

Parameter Symbol

Min Typ Max

Contrast Ratio CR 1100 1600 - 1

Surface Luminance, white L

Luminance Variation δ

WHITE

WH

5P - - 1.3 3

360 450 - cd/m

Gray-to-Gray G to G - 6 9 4

Response Time

Color Coordinates
[CIE1931]

MPRT MPRT

Uniformity δ

Uniformity δ

RED

GREEN

BLUE

WHITE

Scan Off

Scan On

MPRT

G TO G

Rx

Ry 0.333

Gx 0.306

Gy 0.604

Bx 0.150

By 0.058

Wx 0.279

Wy 0.292

-

-

- - 1

- - 1

Typ

-0.03

Color Temperature 10,000 K

Color Gamut 72 %

Viewing Angle (CR>10)

x axis, right(φ=0°) θr 89 - ­x axis, left (φ=180°) θl 89 - ­y axis, up (φ=90°) θu 89 - ­y axis, down (φ=270°) θd 89 - -

Gray Scale - - - 7

Ver. 1.0

Value

9 13 ms

0.644

=12.0V, fV=120Hz, Dclk=74.25MHz,

LCD

Scanning Off , EXTVBR-B =100%

Unit Note

2

117

Typ

+0.03

degree 6

2

5

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 =

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

2. 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. 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 , δ WHITE is defined as :
δ 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 G(N) to G(M) (Rise Time, TrR)

and from G(M) to G(N) (Decay Time, TrD). For additional information see the FIG. 3. (N<M)

※ G to G Spec stands for average value of all measured points.

5. MPRT is defined as the 10% to 90% blur-edge width Bij(pixels) and scroll speed U(pixels/frame)at

the moving picture. For more information, see FIG 4

※. Gray to Gray / MPRT Response time uniformity is Reference data. Appendix VII-1/ VII-2

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. 5.

Surface Luminance at position n with all white pixels

Surface Luminance at position n with all black pixels

, L

, L

on4

, L

on1

to L

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

on5

on1,Lon2

on3

Photo Detector : RD-80S / Field : 2˚

on5

) / Minimum(L

on1,Lon2

, L

on3

, L

on4

, L

on5

)

LC420EUD

7. Gray scale specification

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

Table 11. GRAY SCALE SPECIFICATION

Gray Level Luminance [%] (Typ)

L0 0.06

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

Ver. 1.0

18 /40

Product Specification

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

H

A

③③③③②②②②

LC420EUD

V

①①①①

B

A : H / 4 mm

④④④④

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

⑤⑤⑤⑤

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

LC420EUD

Product Specification

MPRT is defined as the 10% to 90% blur-edge with Bij(pixels) and scroll speed U(pixels/frame)at the moving
picture.

LLLL

jjjj

90%

M =

1

Bij (i=j)

U

Example) Bij = 12pixels, U = 10pixels / 120Hz

M = 12pixels / (10pixels / 120Hz)

= 12pixels / {10pixels / (1/120)s}
= 12 / 1,200 s
= 10 ms

LLLL

iiii

FIG. 4 MPRT

B

ij

10%

Dimension of viewing angle range

φ

= 180°, Left

φ

= 270°, Down

Ver. 1.0

Normal

θ

φ

FIG. 5 Viewing Angle

E

Y

φ

= 90°, Up

φ

= 0°, Right

20 /40

Product Specification

5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

LC420EUD

Outline Dimension

Bezel Area

Active Display Area

Weight

Horizontal

Vertical

Depth

Horizontal

Vertical

Horizontal

Vertical

8.8 Kg (Typ.), 9.3 kg (Max.)

968.4 mm

564.0 mm

18.3 mm

938.4 mm

531.0 mm

930.24 mm

523.26 mm

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

Ver. 1.0

21 /40

[ FRONT VIEW ]

LC420EUD

Product Specification

SET : TOP

SET : DOWN

Ver. 1.0

22 /40

[ REAR VIEW ]

LC420EUD

Product Specification

Set : Top

Set : Down

Ver. 1.0

23 /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

1.0Grms

Each direction per 10 min

11ms

One time each direction

5

6

Vibration test
(non-operating)

Shock test
(non-operating)

Vibration level :
Bandwidth : 10-300Hz
Duration : X,Y,Z,

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

LC420EUD

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

Altitude operating

8

storage / shipment

0 - 15,000 ft
0 - 40,000 ft

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

Ver. 1.0

24 /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 1M)

LC420EUD

2. Caution
: LED inside.

Class 1M 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

25 /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

LC420EUD

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 : 16 pcs

b) Pallet Size : 1140 mm(W) X 990 mm(D) X 120 mm(H)

K

Oct

A

Nov

B

DecMarFebJan

C321

Ver. 1.0

26 /40

LC420EUD

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) The spike noise causes the mis-operation of circuits. It should be lower than following voltage :

V=±200mV(Over and under shoot voltage)

(2) Response time depends on the temperature.(In lower temperature, it becomes longer.)
(3) 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

(4) 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.
(5) When fixed patterns are displayed for a long time, remnant image is likely to occur.
(6) 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.

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

its full characteristics perfectly.

(8) 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)
(9) Please do not set LCD on its edge.
(10) 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

27 /40

LC420EUD

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. Handling Precautions for Protection Film

(1) The protection film is attached to the bezel with a small masking tape

When the protection film is peeled off, static electricity is generated between the film and polarizer.

This should be peeled off slowly and carefully by people who are electrically grounded and with well ion-

blown equipment or in such a condition, etc.

(2) When the module with protection film attached is stored for a long time, sometimes there remains a very

small amount of glue still on the bezel after the protection film is peeled off.

(3) You can remove the glue easily. When the glue remains on the bezel surface or its vestige is recognized,

please wipe them off with absorbent cotton waste or other soft material like chamois soaked with normal-

hexane.

.

Ver. 1.0

28 /40

# APPENDIX-I

■■■■ Pallet Ass’y

LC420EUD

Product Specification

Ver. 1.0

NO. DESCRIPTION MATERIAL

1 LCD Module

2 BAG 42INCH

3 TAPE MASKING 20MMX50M

4 PALLET Plastic 1140X990X120mm

5 PACKING,BOTTOM EPS

6 PACKING,TOP EPS

7 ANGLE,PACKING PAPER

8 BAND PP

PAPERANGLE.COVER9

10 BAND,CLIP STEEL or PP

11 LABEL YUPO 80G 100X70

29 /40

# APPENDIX- II-1

■ LCM Label

LC420EUD

Product Specification

Model

LC420EUD
(SD)(M1)

UL, TUV Mark

LGD Logo

US PATENT No.

■■■■ Serial No. (See CAS 26page for more information)

1 2 3 4 5 6 7 9 10 11 12

Year

Inch

Month

8

13

Serial No.

Serial No.

Origin

Ver. 1.0

M Ass’y Factory code

30 /40

# APPENDIX- II-2

■ Pallet Label

LC420EUD

Product Specification

LC420EUD

SDM1

16 PCS

MADE IN KOREA

001/01-01

XXXXXXXXXXXXX XXX

RoHS Verified

Ver. 1.0

31 /40

# APPENDIX- III-1

LC420EUD

Product Specification

■ Required signal assignment for Flat Link (Thine : THC63LVD103) Transmitter(Pin7

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+

TE-

TE+

31

30

29

28

25

24

23

22

21

20

19

18

GND

FI-RE51S-HF

12

13

14

15

16

17

19

20

22

23

24

25

7

100Ω

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

=“L” or “NC”)

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

RO4N

RO4P

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

Ver. 1.0

32 /40

# APPENDIX- III-2

LC420EUD

Product Specification

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

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+

TE-

TE+

31

30

29

28

25

24

23

22

21

20

19

18

VCC

FI-RE51S-HF

12

13

14

15

16

17

19

20

22

23

24

25

7

100Ω

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

H”)

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

RO4N

RO4P

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

Ver. 1.0

33 /40

Product Specification

# APPENDIX- IV-1

■ LVDS Data-Mapping Information (10 Bit )

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

RCLKP

RCLKM

LC420EUD

RAP

RBP

RCP

RDP

REP

R19 R18 R17 R16G14 R15R14’ R14R15’ G14”

B14 G19 G18 G17B15 G16G15’ G15G16’ B15”

V

SYNCHSYNC

B19 B18DE B17B16’ B16B17’ DE”

B13 B12 G13 G12X R13R12’ R12R13’ X”

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

REP

V

SYNCHSYNC

B15 B14DE B13B12’ B12B13’ DE”

B17 B16 G17 G16X R17R16’ R16R17’ X”

B19 B18 G19 G18X R19R18’ R18R19’ X”

34 /40

Product Specification

# APPENDIX- IV-2

■ LVDS Data-Mapping Information (8 Bit )

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

RCLKP

RCLKM

LC420EUD

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”

35 /40

Product Specification

# APPENDIX- V-1

■ Option Pin Circuit Block Diagram

1) Circuit Block Diagram of LVDS Format Selection pin

LVDS Select Pin : Pin 7

1KΩΩΩΩ

LVDS Select

(Pin 7)

LC420EUD

LVDS Select

25kΩΩΩΩ

ASIC

(TCON)

System Side LCM Side

2) Circuit Block Diagram of L-DIM Enable Selection pin

L-DIM Enable Pin : Pin 10

VCC

OPEN

R1

L-DIM _Enable

(Pin 10)

System Side

R1 ≤≤≤≤ 1KΩΩΩΩ

1KΩΩΩΩ

LCM Side

25kΩΩΩΩ

L-DIM _Enable

ASIC

(TCON)

Ver. 1.0

36 /40

# APPENDIX- V-2

■ Option Pin Circuit Block Diagram

3) Circuit Block Diagram of Bit Selection pin

Bit Select Pin : Pin 27

Bit Select

(Pin 27)

LC420EUD

Product Specification

VCC

25kΩΩΩΩ

1KΩΩΩΩ

Bit Select

OPEN

System Side LCM Side

ASIC

(TCON)

Ver. 1.0

37 /40

Product Specification

# APPENDIX- VI

■ EXTVBR-B & Local Dimming Design Guide

LC420EUD

1) When L-Dim Enable is “L", Vertical Sync Signal = System Dimming with

100Hz or 120Hz frequency.

2) Local Dimming signals are synchronized with V-Sync Freq. of System in T-Con Board.

3) EXTV

EXTVBR-B Specification ( VCC =

EXTVEXTV

3.3V ) @ Local Dimming

a) High Voltage Range : 2.5 V ~ 3.6 V

b) Low Voltage Range : 0.0 V ~ 0.8 V

(8pin)
#1 : Vertical Sync signal
#2 : Reserved
#3 : Reserved
#4 : Local Dimming Serial Data
#5 : GND
#6 : Local Dim Serial Clock
#7 : Reserved
#8 : Reverse

#1

#8

LCM T-con Board

T-Con

(51pin)
#8 :

NC

#8

B/L Signal
Generation

Block

#1

#9 : NC

#10 : L-DIM Enable

#11 : GND

#14 : EXTVBR-B

#1 51 #1 41

CNT1 51pin CNT2 41pin

CNT4 CNT4

Local Dimming On

3.3V

System
Main IC

(PWM Generator)

Local Dimming Off

EXTVBR-B

Frequency

Rising Time

Falling Time

Ver. 1.0

LED

Driver

14pin

100 Hz for PAL
120 Hz for NTSC

MAX 10.0 μs

MAX 10.0 μs

Chassis

<With Driver Model>

VCC

VCC*0.9

Rising Time

Falling Time

VCC*0.1

0

38 /40

LC420EUD

−

Product Specification

# APPENDIX- VII-1

Gray to Gray Response Time Uniformity

This is only the reference data of G to G and uniformity for LC420EUD-SDM1 model.

1. G to G Response Time :
Response time is defined as Figure3 and shall be measured by switching the input signal for
“Gray (N) ” and “Gray(M)”.(32Gray Step at 8bit)

2. G to G Uniformity
The variation of G to G Uniformity , δ G to G is defined as :

)()(

G to G Uniformity =

GtoGTypical

GtoGTypicalGtoGMaximum

)(

*Maximum (GtoG) means maximum value of measured time (N, M = 0 (Black) ~ 1023(White), 128 gray step).

0Gray 127ray 255Gray … 895Gray 1023Gray

0Gray

127Gray

255Gray

…

895Gray

1023Gray

TrD:127G0G TrR:127G255G … TrR:127G895G TrR:127G1023G

TrD:255G0G TrD:255G127G … TrR:255G895G TrR:255G1023G

… … … … …

TrD:895G0G TrD:895G127G TrD:895G255G … TrR:895G1023G

TrD:1023G0G TrD:1023G127G TrD:1023G255G … TrD:1023G895G

TrR:0G127G TrR:0G255G … TrR:0G895G TrR:0G1023G

≤1

3. Sampling Size : 2 pcs

4. Measurement Method : Follow the same rule as optical characteristics measurement.

5. Current Status

Below table is actual data of production on Jan.28th. 2011 ( LGD RV Event Sample)

G to G Response Time [ms]

Min. Max.

# 1

# 2

2.93 8.45 0.81

2.96 8.55 0.83

Uniformity

Ver. 1.0

39 /40

# APPENDIX- VII-2

LC420EUD

Product Specification

■ MPRT Response Time Uniformity (δδδδ

MPRT

)

This is only the reference data of MPRT and uniformity for LC420EUD-SDM1 model.

1. MPRT Response Time :
Response time is defined as Figure3

2. MPRT Uniformity
The variation of MPRT Uniformity , δ MPRT is defined as :

MPRT Uniformity =

Maximum (MPRT) - Typical (MPRT)

Typical (MPRT)

≤1

3. Sampling Size : 2 pcs

4. Measurement Method : Follow the same rule as optical characteristics measurement.

5. Current Status

Below table is actual data of production on Jan. 28th. 2011 ( LGD RV Event Sample)

Sample

# 1 5.81 11.52 0.46

# 2 5.80 11.48 0.46

MPRT Response Time [ms]

Min. Max.

Uniformity

Ver. 1.0

40 /40