LG Display LC420EUQ-SCA2 Specification

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SUFFIX

SCA2

(RoHS Verified)

LC420EUQ

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(
(

Preliminary Specification

●

)

Final Specification

Title 42.0” WUXGA TFT LCD

BUYER KDP

MODEL

APPROVED BY

/

/

SIGNATURE

DATE

SUPPLIER LG.Display Co., Ltd.

*MODEL LC420EUQ

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J. Y Lee / Team Leader

REVIEWED BY

J. K Kim / Project Leader

SIGNATURE

DATE

PREPARED BY

/

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0

W. K Sang / Engineer

TV Products Development Dept.

LG. Display LCD Co., Ltd

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4

OPTICAL SPECIFICATIONS

16

4

OPTICAL SPECIFICATIONS

16

LC420EUQ

Product Specification

CONTENTS

Number ITEM

COVER
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 Specification
3-5 Color Data Reference
3-6 POWER SEQUENCE

5 MECHANICAL CHARACTERISTICS

Page

0
1
2
3
4
5
5
7

9
10
13
14

20

6 RELIABILITY
7 INTERNATIONAL STANDARDS

7-1 SAFETY
7-2 EMI
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

23
24
24
24
24
25
25
25
26
26
26
27
27
27
27

Ver. 1.0

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Revision No. Revision Date Page Description

0.0 July, 20, 2010 - Preliminary Specification , Temporal Buyer Set Phase2 ES

1.0 August. . 2010 7, 35~39 Change Option Pin Configuration

LC420EUQ

Product Specification

RECORD OF REVISIONS

Ver. 1.0

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+12.0V

1. General Description

The LC420EUQ 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 type display 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 arranged 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 1.06Billon colors.
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.

LC420EUQ

Product Specification

Mini-LVDS(RGB)

G1

Gate Driver Circuit

G1080

Source Driver Circuit

S1 S1920

TFT - LCD

Panel

(1920 × RGB × 1080

pixels)

3D Enable
LVDS Select
L/R Indicator
L/D Enable
LVDS(2Port)

Bit Select

CN3

(51pin)

Flash*2

MEMC*2

Shutter Glass Out

DDR2*2

EEPROM

SCL

SDA

Timing

Controller

(OPC+DGA+ODC)

Power Circuit

Block

VSYNC, SIN, SCLK, GND
3D Enable

+24.0V, GND, On/Off

ExtVBR-B

LED Driver

V :2Block

H :6 Block

Local Dimming : 12 Block

General Features

Active Screen Size 42.02 inches(1067.31mm) diagonal
Outline Dimension 973.2(H) x 566.2 (V) x 10.8 mm(B)/23.6(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.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))

Power Consumption
Weight 11.3Kg (Typ.)

Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-reflection treatment of the front polarizer (reflectance <2%)

Total 101.52 W (Typ.)
(Logic=10.32 W with T-CON, Backlight=91.2W @ with Driver

Ver. 1.0

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Storage Humidity

HST1090%RH

Storage Humidity

HST1090%RH

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

LC420EUQ

Product Specification

Parameter Symbol

Power Input Voltage

Driver Control Voltage

T-Con Option Selection Voltage VLOGIC -0.3 +4.0 VDC
Operating Temperature TOP 0 +50
Storage Temperature TST -20 +60
Panel Front Temperature TSUR - +68
Operating Ambient Humidity HOP 10 90 %RH

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

Note

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

°C
°C

°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

4

2,3

60

60%

40

50

40%

Humidity [(%)RH]

10%

Wet Bulb
Temperature [°C]

30

20

10

0

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

Ver. 1.0

Storage

Operation

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

=12.0V, Ta=25

±

2°C, fV=240Hz

Note

3. Electrical Specifications

3-1. Electrical Characteristics

Table 2. ELECTRICAL CHARACTERISTICS

LC420EUQ

Product Specification

Parameter Symbol

Min Typ Max

Circuit :

Power Input Voltage VLCD 10.8 12.0 13.2 VDC

- 860 1118 mA 1

Power Input Current ILCD

- 1587 2063 mA 2

Power Consumption PLCD - 10.32 14.75 Watt 1

Rush current IRUSH -

Value

-

LCD

Unit Note

15 A 3

condition whereas mosaic pattern(8 x 6) is displayed and fVis the frame frequency.

2. The current is specified at the maximum current pattern.

3. The duration of rush current is about 2ms and rising time of power input is 0.5ms (min.).

White : 1023 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

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PWM Frequency for

PAL97100

103

Hz

Table 3. ELECTRICAL CHARACTERISTICS (Continue)Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420EUQ

Product Specification

Parameter Symbol

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

Power Supply Input Current (Peak) IBL_A

Power Supply Input Current (In-Rush) Irush

Power Consumption PBL

On/Off

Input Voltage for

Control System

Signals

LED :

Life Time 30,000 Hrs 2

Brightness Adjust ExtVBR-B 1 - 100 %
Pulse Duty Level

(PWM)

NTSC & PAL

On V on 2.5 - 5.0 Vdc
Off V off -0.3 0.0 0.7 Vdc

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

NTSC 117 120 123 Hz

Min Typ Max

-

-

- - 5.1 A

- - 7.1 A

-

Values

.8

3

5.3

91.2 96.9

43.9 45.6

4.1

5.7

Unit Notes

A Ext VBR-B = 100%
A 3D Mode

VBL = 22.8V

Ext VBR-B =100%....4

3D Mode
VBL = 22.8V

Ext VBR-B =100%....4

W Ext VBR-B = 100%

3D Mode

W

On Duty

Vdc
Vdc

HIGH : on duty

LOW : off duty

6

3

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 10ms.

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

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11

GND

Ground

37

GND

Ground

Product Specification

3-2. Interface Connections

This LCD module employs one kind 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 : FI-R51S-HF(manufactured by JAE)

(CN3) Refer to below and next Page table

- Mating Connector : FI-R51HL(JAE)

Table 4-1. MODULE CONNECTOR(CN3) PIN CONFIGURATION

No Symbol Description No Symbol Description

1 3D Enable 3D Enable (H:3D, L:2D) 27 Bit Select ‘H’ or NC = 10bit(D), ‘L’ = 8bit
2 I2C_SDA (I2C_SDA) ,Note 8 28
3 I2C_SCL (I2C_SCL) ,Note8 29
4 SDA SDA (For Local Dimming) 30

5 SCL SCL (For Local Dimming) 31 R2BP SECOND LVDS Receiver Signal (B+)
6 WP WP (Write Protection) 32
7 LVDS Select ‘H’ or NC =JEIDA , ‘L’ = VESA 33
8 LR indicator L/R Indicator, Note9 34 GND Ground
9 SG OUT Shutter Glass Signal Out 35

10 Local Dimming

Local Dimming
‘H’ =Enable , ‘L’ or NC = Disable

36

R2AN
R2AP
R2BN

R2CN
R2CP

R2CLKN

R2CLKP

SECOND LVDS Receiver Signal (A-)
SECOND LVDS Receiver Signal (A+)
SECOND LVDS Receiver Signal (B-)

SECOND LVDS Receiver Signal (C-)
SECOND LVDS Receiver Signal (C+)

SECOND LVDS Receiver Clock Signal(-)

SECOND LVDS Receiver Clock Signal(+)

LC420EUQ

12
13
14

15 R1BP FIRST LVDS Receiver Signal (B+) 41
16
17
18
19
20 R1CLKP FIRST LVDS Receiver Clock Signal(+) 46 GND Ground
21
22
23
24
25
26 NC No Connection - - -

R1AN
R1AP
R1BN

R1CN
R1CP

GND

R1CLKN

GND
R1DN
R1DP
R1EN
R1EP

FIRST LVDS Receiver Signal (A-) 38
FIRST LVDS Receiver Signal (A+) 39
FIRST LVDS Receiver Signal (B-) 40

FIRST LVDS Receiver Signal (C-) 42
FIRST LVDS Receiver Signal (C+) 43
Ground 44 GND Ground
FIRST LVDS Receiver Clock Signal(-) 45 GND Ground

Ground 47 NC No connection
FIRST LVDS Receiver Signal (D-) 48 VLCD Power Supply +12.0V
FIRST LVDS Receiver Signal (D+) 49 VLCD Power Supply +12.0V
FIRST LVDS Receiver Signal (E-) 50 VLCD Power Supply +12.0V
FIRST LVDS Receiver Signal (E+) 51 VLCD Power Supply +12.0V

R2DN
R2DP
R2EN

R2EP

NC
NC

SECOND LVDS Receiver Signal (D-)
SECOND LVDS Receiver Signal (D+)
SECOND LVDS Receiver Signal (E-)

SECOND LVDS Receiver Signal (E+)
No connection

No connection

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

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

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

4. Specific pins(pin No. #10) are used for Local Dimming function of the LCD module.
If 3D mode is operated, this pins are necessary ‘L’ status. (Please see the Appendix_ Ⅹ for more information.)

5. LVDS pin (pin No. #24,25,40,41) are used for 10Bit(D) of the LCD module.

6. Specific pins (pin No. #1) are used for selecting 3D/2mode.

7. Specific pins (pin No. #9) are output signal from the LCD module

8. Specific pin (pin No. #2, #3) is used for Controlling MEMC Chip register in the LCM Module.

9. Specific pin (pin No. #8) is reserved for 3D input (Frame Sequential Type) Control. (Please see the

Appendix_ Ⅹ for more information)

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3-2-2. Backlight Module

Master

-LED Driver Connector :
: 20022WR-14B1(Yeonho) or Equivalent

- Mating Connector
: 20022HS-14 or Equivalent

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

LC420EUQ

Product Specification

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
GND
GND
GND
GND

NC NC

ON/OFF

V

EXTVBR-B External PWM 2

Status

Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground
Backlight Ground

Backlight ON/OFF control

Backlight Status 3

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

2. High : on duty / Low : off duty, Pin#13 can be opened. ( if Pin #13 is open , EXTVBR-B is 100% )

3. Normal : Low (Under 0.7V)
Abnormal : High(Over 2.5V)

4. Each impedance of pin #12 and 13 is over 50 [KΩ].

1

◆ Rear view of LCM

PCB

14

…

…

1

<Master>

Ver. 1.0

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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

LC420EUQ

Product Specification

Horizontal

Vertical

Frequency

Display

Period

Blank tHB 80 140 400 tCLK 1

Total tHP 1040 1100 1260 tCLK

Display

Period

Blank tVB

Total tVP

ITEM Symbol Min Typ Max Unit Note

DCLK fCLK 70.5 74.25 75 MHz 2Pixel/CLK, 148.5MHz/2

Horizontal fH 64.1 67.5 69 KHz 2

Vertical fV

tHV 960 960 960 tCLK 1920 / 2

tVV 1080 1080 1080 Lines

20

(228)
1100

(1308)

57

(47.5)

45

(270)
1125

(1350)

60

(50)

86

(300)
1166

(1380)

60.6

(50.5)

Lines 1

Lines

Hz

NTSC : 57~60.6Hz
(PAL : 47.5~50.5Hz)

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.

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Invalid data

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420EUQ

Product Specification

DCLK

First data

Second data

Third data

Forth data

DE(Data Enable)

tCLK

0.5 VDD

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

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A

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420EUQ

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 ∆VCM 250 mV -

2) AC Specification

T

clk

LVDS Clock

LVDS Data

(F

= 1/T

)

clk

A

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

tSKEW

t

SKEW_mintSKEW_max

tSKEW

clk

T

clk

80%

20%

t

RF

Description Symbol Min Max Unit Note

LVDS Differential Voltage

High Threshold

Low Threshold

LVDS Clock to Data Skew t

LVDS Clock/DATA Rising/Falling time t

Effective time of LVDS t

LVDS Clock to Clock Skew (Even to Odd) t

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

Note

2. If tRFisn’t enough, t
. LVDS Differential Voltage is defined within t

3

should be meet the range.

eff

V

TH

V

TL

SKEW

RF

eff

SKEW_EO

Ver. 1.0

100 300 mV

-300 -100 mV

|(0.25*T

260 |(0.3*T

)/7| ps -

clk

)/7| ps 2

clk

|±360|

|1/7* T

clk|

eff

ps -

ps -

3

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tui : Unit Interval

V+

LC420EUQ

Product Specification

360ps

V+
data

Vcm

V­data

clk

Vcm

0.5tui

tui

VTH

VTL

360ps

teff

V­clk

Ver. 1.0

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Yellow

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

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

LC420EUQ

Product Specification

Input Color Data

Basic
Color

RED

Color

Black

Red (1023)

Green (1023)

Blue (1023)

Cyan

Magenta

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 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

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

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

GREEN

BLUE

GREEN (0001)

...

GREEN (1022)

GREEN (1023)

BLUE (0000)

BLUE (0001)

… ... ... ...

BLUE (1022)

BLUE (1023)

Ver. 1.0

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Parameter

Unit

Notes

3-6. Power Sequence

3-6-1. LCD Driving circuit3-6-1. LCD Driving circuit

Power Supply For LCD

V

LCD

0V

10%

Product Specification

90%

T1

T2

Valid Data

LC420EUQ

90%

10%

T8

10%

T5

Vcm : LVDS Common mode Voltage

Interface Signal (Tx_clock)

User Control Signal

0V

T6

(LVDS_select, BIT _select, L-DIM Enable, 3D

Enable)

Power for LED

Table 8. POWER SEQUENCE

Min Typ Max

T1 0.5 - 20 ms -
T2 1 - - s 4
T3 3 - - s 3
T4 200 - - ms 3
T5 1.0 - - s 5
T6 - - T2 ms 4
T7 4 - s
T8 100 - ms 6

30%

Value

100%

T7

T3 T4

LED ON

Note :

1. Please avoid floating state of interface signal at invalid period.

2. When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.

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. If the on time of signals(Interface signal and user control signals) precedes the on time of Power(V

t will be happened abnormal display. When T6 is NC status, T6 doesn’t need to be measured.

i

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

6. It is recommendation specification that T8 has to be 100ms as a minimum value.

7. When the power for LCD (VLCD) is on, be sure to start only in 2D mode.
If it is started in 3Dmode, abnormal display may occur.

Ver. 1.0

),

LCD

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3-6-3. Dip condition for LED Driver

3-6-2. Sequence for LED Driver

Power Supply For LED Driver

VBL

0V

10%

Product Specification

24V (typ.)

90%

LC420EUQ

90%

VON/OFF

Ext-VBR-B

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.

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Contrast Ratio

CR

900

1300

-

1

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.

LC420EUQ

Product Specification

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

Surface Luminance, white L
Luminance Variation δ

Response Time

RED

Color Coordinates
[CIE1931]

Color Temperature 10,000 K
Color Gamut 72 %
Viewing Angle (CR>10)

x axis, right(φ=0°)
x axis, left (φ=180°)
y axis, up (φ=90°)
y axis, down (φ=270°)

Gray Scale - - - 7

GREEN

BLUE

WHITE

WH

WHITE

G to G -

5P - - 1.3 3

MPRT -

Rx
Ry 0.335
Gx 0.308
Gy 0.602
Bx 0.156

By 0.061
Wx
Wy

θr 89 - -

θl 89 - -
θu 89 - -
θd 89 - -

Min Typ Max

360 450 - cd/m

Typ

-0.03

Value

4 6
4 6

0.642

0.279

0.292

=12.0V, fV=240Hz, Dclk=74.25MHz,

LCD

EXTVBR-B =100%

Unit Note

2

ms 4,5
ms

Typ

+0.03

degree 6

2

Ver. 1.0

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

LC420EUQ

Product Specification

Contrast Ratio =

Surface Luminance with all white pixels
Surface Luminance with all black pixels

It is measured at center 1-point.

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

W

here L

on1

to L

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

on5

on1,Lon2

, L

on3

, L

on4

, L

) / Minimum(L

on5

on1,Lon2

, L

on3

, L

on4

, L

on5

)

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.

Photo Detector : RD-80S / Field : 2˚

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_Ⅷ

Ⅷ

ⅧⅧ

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.

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 0.075
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

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

LC420EUQ

Product Specification

H

A

③③③③②②②②

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

Optical
Response

Ver. 1.0

10

0

Gray(N)

N,M = Black~White, N<M

FIG.3 Response Time

Gray(M)

Gray(N)

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= 10 ms

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

LC420EUQ

Product Specification

1

M =

Bij (i=j)

U

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

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

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

Dimension of viewing angle range

φ

= 180°, Left

LLLLj

j

jj

LLLLi

i

ii

FIG. 4 MPRT

Normal

θ

90%

10%

Bij

E

Y

φ

= 90°, Up

φ

φ

= 0°, Right

φ

= 270°, Down

FIG.5 Viewing Angle

Ver. 1.0

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Weight

11.3 Kg (Typ.), 12.4Kg (Max.)

5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

LC420EUQ

Product Specification

Horizontal 973.2 mm

Outline Dimension

Bezel Area

Active Display Area

Vertical 566.2 mm
Depth 23.6 mm
Horizontal 937.2 mm
Vertical 530.2 mm

Horizontal 930.24 mm
Vertical 523.26 mm

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

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[ FRONT VIEW ][ FRONT VIEW ]

LC420EUQ

Product Specification

Ver. 1.0

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[ REAR VIEW ][ REAR VIEW ]

LC420EUQ

Product Specification

Ver. 1.0

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One time each direction

6. Reliability

Table 13. ENVIRONMENT TEST CONDITION

No. Test Item Condition

LC420EUQ

Product Specification

1 High temperature storage test

2 Low temperature storage test

3 High temperature operation test

4 Low temperature operation test

Vibration test

5

(non-operating)

Shock test

6

(non-operating)

7 Humidity condition Operation

Altitude operating

8

storage / shipment

Ta= 60°C 240h

Ta= -20°C 240h

Ta= 50°C 50%RH 240h

Ta= 0°C 240h

Wave form : random
Vibration level : 1.0Grms
Bandwidth : 10-300Hz
Duration : X,Y,Z, 30 min

Each direction per 10 min

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

Ta= 40 °C ,90%RH
0 - 15,000 ft

0 - 40,000 ft

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

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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

LC420EUQ

Product Specification

Class 1M LED Product

IEC60825-1 : 2001

Embedded LED Power (Class 1M)

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

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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

201220112010

201342014

2015620167201782018

LC420EUQ

2019

Mark

210

3

5

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 : 15 ea
b) Pallet Size : 1140 mm X 990 mm X 125.5mm

9

Oct

A

Nov

B

DecMarFebJan

C321

Ver. 1.0

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chemical damage to the polarizer

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
t h e

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

LC420EUQ

Product Specification

(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.

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9-6. Handling Precautions for Protection Film

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.

LC420EUQ

Product Specification

(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

(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.

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# APPENDIX-I

■

■ Pallet Ass’y

■■

LC420EUQ

Product Specification

Ver. 1.0

NO. DESCRIPTION MATERIAL

1 LCD Module
2 BAG 55INCH
3 TAPE MASKING 20MMX50M
4 PALLET Plywood 1440X1140X125.5mm
5 PACKING,BOTTOM EPS
6 PACKING,TOP EPS
7 ANGLE,POST PAPER
8 ANGLE,PACKING PAPER

9 ANGLE.COVER PAPER
10 BAND,CLIP STEEL or PP
11 BAND PP
12 LABEL YUPO 80G 100X70

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# APPENDIX- II-1

■ LCM Label

LC420EUQ

Product Specification

Model

UL, TUV Mark

LC420EUQ

LC420EUQ

LC420EUQLC420EUQ
(SC)(A2)

(SC)(A2)

(SC)(A2)(SC)(A2)

Serial No.

LGD Logo

US PATENT No. Origin

■■■■ Serial No. (See CAS 25page for more information)

1 2 3 4 5 6 7 9 10 11 12

Inch

MonthYear

8

13

Serial No.

M Ass’y Factory code

Ver. 1.0

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# APPENDIX- II-2

■ Pallet Label

LC420EUQ

LC420EUQ

Product Specification

SCA2

15 PCS

MADE IN KOREA

001/01-01

XXXXXXXXXXXXX XXX

RoHS Verified

Ver. 1.0

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GREEN4

45

TCLK

-

ROCLKN

19

23

# APPENDIX- ⅢⅢⅢⅢ-1

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

LC420EUQ

Product Specification

Host System

30 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6
RED7
RED8

RED9
GREEN0
GREEN1
GREEN2
GREEN3

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

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+

TD-

TD+

TE-

TE+

31
30

29
28

25
24

22

21
20

19
18

GND

FI-RE51S-HF

12
13

14
15

16
17

20

22
23

24
25

7

100Ω

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

Timing

Controller

RO0N
RO0P

RO1N
RO1P

RO2N
RO2P

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.

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GREEN4

40

TCLK

-

ROCLKN

19

23

LC420EUQ

Product Specification

# APPENDIX- ⅢⅢⅢⅢ-2

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

Host System

30 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6
RED7
RED8

RED9
GREEN0
GREEN1
GREEN2
GREEN3

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

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+

TD-

TD+

TE-

TE+

31
30

29
28

25
24

22

21
20

19
18

VCC

FI-RE51S-HF

12
13

14
15

16
17

20

22
23

24
25

7

100Ω

100Ω

100Ω

100Ω

100Ω

100Ω

LCM Module

Timing

Controller

RO0N
RO0P

RO1N
RO1P

RO2N
RO2P

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.

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LC420EUQ

Product Specification

# APPENDIX- Ⅳ

Ⅳ-1

Ⅳ

Ⅳ

■ LVDS Data-Mapping Information (10 Bit )

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

RCLKP

RCLKM

RAP

RBP

RCP

RDP

REP

R19 R18 R17 R16G14 R15R14’ R14R15’ G14”

B14 G19 G18 G17B15 G16G15’ G15G16’ B15”

V

SYNCHSYNC

B13 B12 G13 G12X R13R12’ R12R13’ X”

B11 B10 G11 G10X R11R10’ R10R11’ X”

B19 B18DE B17B16’ B16B17’ DE”

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

RCLKP

RCLKM

RAP

RBP

RCP

RDP

REP

R15 R14 R13 R12G10 R11R10’ R10R11’ G10”

B10 G15 G14 G13B11 G12G11’ G11G12’ B15”

V

SYNCHSYNC

B17 B16 G17 G16X R17R16’ R16R17’ X”

B19 B18 G19 G18X R19R18’ R18R19’ X”

B15 B14DE B13B12’ B12B13’ DE”

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LC420EUQ

Product Specification

# APPENDIX- Ⅳ

Ⅳ-2

Ⅳ

Ⅳ

■ LVDS Data-Mapping Information (8 Bit )

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

RCLKP

RCLKM

RAP

RBP

RCP

RDP

R17 R16 R15 R14G12 R13R12’ R12R13’ G12”

B12 G17 G16 G15B13 G14G13’ G13G14’ B13”

V

B11 B10 G11 G10X R11R10’ R10R11’ X”

SYNCHSYNC

B17 B16DE B15B14’ B14B15’ DE”

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

RCLKP

RCLKM

RAP

RBP

RCP

RDP

R15 R14 R13 R12G10 R11R10’ R10R11’ G10”

B10 G15 G14 G13B11 G12G11’ G11G12’ B15”

V

SYNCHSYNC

B17 B16 G17 G16X R17R16’ R16R17’ X”

B15 B14DE B13B12’ B12B13’ DE”

Ver. 1.0

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System Side

LCM Side

System Side

LCM Side

LC420EUQ

Product Specification

# APPENDIX- Ⅴ

Ⅴ

ⅤⅤ

■ Option Pin Circuit Block Diagram

1)Circuit Block Diagram of 3D Enable Selection pin

VCC

OPEN

4.3KΩ

3D Enable (Pin 1)

10KΩ

1㎌

㎌

㎌㎌

3D Enable

High Voltage Range: 3.14V ~ 3.3V
Low Voltage Range: 0V ~ 0.8V

2)Circuit Block Diagram of I2CS_SDA, I2CS_SCL Signal pin

1.2K

300

I2CS_SDA (Pin 2)

300

I2CS_SCL (Pin 3)

System Side LCM Side

VCC

1.2K

I2CS_SDA

I2CS_SCL

Ver. 1.0

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Product Specification

3)Circuit Block Diagram of SDA, SCL Signal pin

LC420EUQ

VCC

SDA (Pin 4)

SCL (Pin 5)

System Side LCM Side

4)Circuit Block Diagram of WP Signal Pin

18K

100

100

VIN

1.5KΩ

1.5KΩ

SDA

SCL

1K

WP (Pin 6)

WP

6.8K

System Side LCM Side

High Voltage Range: 3.14V ~ 3.3V
Low Voltage Range: 0V ~ 0.8V

Ver. 1.0

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High Voltage Range: 3.14V ~ 3.3V

Product Specification

5)Circuit Block Diagram of LVDS Format Selection pin

VCC

10KΩ

1KΩ

LVDS Format (Pin 7)

LC420EUQ

LVDS Format

OPEN

System Side LCM Side

6)Circuit Block Diagram of L/R Indicator Signal pin

1KΩ

L/R Indi. (Pin 8)

Low Voltage Range: 0V ~ 0.8V

L/R Indicator

System Side LCM Side

High Voltage Range: 3.14V ~ 3.3V
Low Voltage Range: 0V ~ 0.8V

Ver. 1.0

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Product Specification

7)Circuit Block Diagram of SG_OUT Signal pin

LC420EUQ

VCC

10㏀

㏀

㏀㏀

2.2KΩ

SG_OUT (Pin 9) SG_OUT

10㏀

㏀

㏀㏀

System Side

OPEN

LCM Side

8)Circuit Block Diagram of Local Dimming On Selection pin

Vcc parasitic Resistor

2.7KΩ

VCC

OPEN

1KΩ

L/D (Pin 10)

OPEN

System Side LCM Side

High Voltage Range: 3.14V ~ 3.3V
Low Voltage Range: 0V ~ 0.8V

Ver. 1.0

Local Dimming

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9)Circuit Block Diagram of Bit Selection pin

LC420EUQ

Product Specification

VCC

10KΩ

Bit Selection (Pin 27)

System Side

1KΩ

Bit Selection

OPEN

LCM Side

High Voltage Range: 3.14V ~ 3.3V
Low Voltage Range: 0V ~ 0.8V

Ver. 1.0

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(51pin)

LC420EUQ

Product Specification

# APPENDIX- Ⅵ

Ⅵ

ⅥⅥ

■ EXTVBR-B & Local Dimming Design Guide

1) When L-Dim Enable is “L", Vertical Sync Signal = System Dimming with 200Hz or 240Hz frequency.

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

3) EXTV

EXTVBR-B Specification ( VCC = 3.3V ) @ Local Dimming

EXTVEXTV

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 : 3D Enable
#8 : Reverse

#1

#8

LCM T-con Board

T-Con

#10 : L-DIM Enable

#1 51

CNT3 51pin

#8

B/L Signal

Generation

Block

LED

#1

#13 : EXTVBR-B

14pin

Driver

EXTVBR-B

Frequency

Rising Time MAX 10.0 µs

Falling Time MAX 10.0 µs

Ver. 1.0

MAX 1Khz
Recommendation: 200 Hz for PAL

240 Hz for NTSC

CNT4

System
Main IC

(PWM Generator)

<With Driver Model>

VCC

VCC*0.9

VCC*0.1

0

Local Dimming On

3.3V

Local Dimming Off

Chassis

Rising Time

Falling Time

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LC420EUQ

Product Specification

# APPENDIX-Ⅶ

Ⅶ

ⅦⅦ

LED Driver input current

( Design for power supply)

This is only the reference data of Inverter input current for LC420EUQ-SCA2 model.

1. Model : LC420EUQ-SCA2

2. Test condition : Vin =24V , V

3. Equipment : Oscilloscope (Tektronix : TDS5054) ,
AC/DC Current Probe(TCP312)
Power Supply : GPC 30600

: 100%(2D, IF=55mA)/17.8%(3D, IF=128mA) , At 25℃

BR_B

Iin(A)

5.3A

3.8A

Ver. 1.0

T1

Max

200ms

2D Mode

3D Duty * 2

Dimming

Mode Change

2D3D

T2

Freq’

3D Mode

Time(ms)

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−

Falling

Rising

Falling

Rising

LC420EUQ

Product Specification

# APPENDIX-Ⅷ

ⅧⅧⅧ----111

1

Gray to Gray Response Time Uniformity

This is only the reference data of G to G and uniformity for LC420EUQ-SSCA2 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 (G to G) 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 XXX.

G to G Response Time [ms]

Min. Max.

15

13

11

# 1
# 2

9

7

5

3

-1

1

G255

G255

G223

G223

G191

G191

G159

G159

G127

G127

G95

G95

G63

G63

G31

G31

G0

G0

G0

G0

TBD TBD TBD
TBD TBD TBD

G255

G255

G223

G223

G191

G191

G159

G159

G127

G127

G95

G95

G63

G63

G31

G31

XX. 2010 ( LGD RV Event Sample)

15

13

11

9

7

5

3

1

-1

G255

G255

G223

G223

G191

G191

G159

G159

G127

G127

G95

G95

G63

G63

G31

G31

G31

G31

G0

G0

G0

G0

G63

G63

Uniformity

G223

G223

G191

G191

G159

G159

G127

G127

G95

G95

G255

G255

< # 1 > < # 2 >

Ver. 1.0

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Sample

Uniformity

6.17

6.02

6.04

6.07

6.17

6.26

6.72

4.46

5.16

5.6

5.9

6.09

6.34

7.01

4.07

4.22

5.23

4.38

4.92

5.29

5.67

6.6

4.03

4.15

4.21

4.4

4.03

4.38

4.79

5.41

4

4.13

4.16

4.1

4.5

3.97

4.01

4.6

3.92

4.08

4.11

4.09

4.23

4.41

4.05

4.01

3.95

3.9344.06

4.1

4.3

4.62

4.08

5.09

4.99

4.79

4.51

4.14

3.83

4.32

4.36

7.1176.91

6.78

6.66

6.55

6.45

6.74

LC420EUQ

Product Specification

# APPENDIX-Ⅷ

■ MPRT Response Time Uniformity (δδδδ

ⅧⅧⅧ----222

2

)

MPRT

This is only the reference data of MPRT and uniformity for LC420EUQ-SCA2 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 Aug. 27. 2010 ( LGD RV Event Sample)

MPRT Response Time [ms]

Min. Max.

# 1 3.78 7.13 0.43
# 2 3.83 7.11 0.42

Ini: 0 Ini: 1 Ini: 2 Ini: 3 Ini: 4 Ini: 5 Ini: 6 Ini: 7 Ini: 8
Fin: 0 6.12 5.97 5.99 6.02 6.12 6.27 6.74
Fin: 1 4.46 5.16 5.61 5.91 6.10 6.36 7.03
Fin: 2 4.02 4.17 5.18 4.33 4.87 5.24 5.68 6.62
Fin: 3 3.98 4.10 4.16 4.35 3.98 4.33 4.78 5.41
Fin: 4 3.95 4.08 4.11 4.05 4.45 3.92 4.00 4.60
Fin: 5 3.87 4.03 4.06 4.04 4.18 4.36 4.04 4.00
Fin: 6 3.90 3.88 3.95 4.01 4.05 4.25 4.62 4.07
Fin: 7 5.04 4.94 4.74 4.46 4.09 3.78 4.27 4.35
Fin: 8 7.13 7.02 6.93 6.79 6.67 6.56 6.47 6.76
Statistical result
BET (msec)
average 4.97
maximum 7.13
minimum 3.78

Ini: 0 Ini: 1 Ini: 2 Ini: 3 Ini: 4 Ini: 5 Ini: 6 Ini: 7 Ini: 8
Fin: 0
Fin: 1
Fin: 2
Fin: 3
Fin: 4
Fin: 5
Fin: 6
Fin: 7
Fin: 8
Statistical result
BET (msec)
average 4.99
maximum 7.11
minimum 3.83

Ver. 1.0

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LC420EUQ

Product Specification

# APPENDIX- Ⅸ

Ⅸ

ⅨⅨ

■ 3D Input Contents Type

This LCM supports Side by Side, Top Down & Frame Sequential type of 3D input contents type as below.
And the signals are according to the HDMI 1.4 standard.

Left eye

image

960 Pixel

Right eye

image

960 Pixel

1080 Pixel

1920 Pixel

Side by Side( Half) of 3D input Contents

Left eye

540 Pixel

image

Right eye

540 Pixel

image

1920 Pixel

Top Down of 3D input Contents

1080 Pixel

Ver. 1.0

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(User CNT

pin No. #8

). See the Appendix X.

LC420EUQ

Product Specification

Left eye

image

1920 Pixel

1080 Pixel

Right eye

image

1920 Pixel

1080 Pixel

<Frame Sequential Type of 3D input Contents>

※ Frame Sequential Type Need L/R indicator signal from TV set to LCM’s Control PCB

Ver. 1.0

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# APPENDIX- X

1) L/R Indicator(#8) application

1) L/R Indicator(#8) application

1) L/R Indicator(#8) application1) L/R Indicator(#8) application

LC420EUQ

Product Specification

T1

LVDS input

LEFT

Pin 8 L/R indicator

LEFT RIGHT

T3

T2

Parameter

Min Typ Max

LVDS Vertical

Freq.

L/R Indicator

Freq.

L/R Indicator Duty - 50% - %

T1 20 45 86 Lines 1
T2 10 T1/2 - Lines
T3 10 T1/2 - Lines

- 48/50/60 - Hz

-

Value

LVDS Freq /

2

- Hz 24/25/30HZ

T1

RIGHT

T3

T2

Unit Remark.

Note) 1. T1 means vertical Blank (Based on NTSC)

2) 3D Enable(#1) & Local dimming(#10) application

2) 3D Enable(#1) & Local dimming(#10) application

2) 3D Enable(#1) & Local dimming(#10) application2) 3D Enable(#1) & Local dimming(#10) application

Local dimming & scanning (#10)

H (on) L (off)

3D
Enable(#1)

H(3D) X O “L” select
L(2D) O O optional

- User can’t select Local dimming in the 3D mode.

- User can select Local dimming On/Off (#10:H,L) in the 2D mode.

Ver. 1.0

Remark

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