LG Display LC420WUN-SCD1 Specification

LC420WUN

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(

(

Preliminary Specification

)

Final Specification

●

Title 42.0” WUXGA TFT LCD

BUYER General

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC420WUN

SUFFIX SCD1(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

* RoHS will be verified by 12/24

APPROVED BY

S. J. LEE / Team Leader

REVIEWED BY

S. J. LEE / Project Leader

PREPARED BY

S. M. Lee / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1. 2

TV Products Development Dept.

LG Display LCD Co., Ltd

1 /37

Product Specification

CONTENTS

LC420WUN

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/INVERTER CONNECTIONS

3-3 SIGNAL TIMING SPECIFICATIONS

LVDS SIGNAL SPECIFICATIONS3-4

3-5 COLOR DATA REFERENCE

3-6 POWER SEQEUNCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

Page

2

3

4

5

6

6

8

10

11

14

15

17

21

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 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. 2

24

25

25

25

26

26

26

27

27

27

28

28

28

28

2 /37

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.0 Sep.1. .2009 - Preliminary Specification (First Draft)

Define Weight and Consumption-Oct.21. .20090.1

Final CAS-Dec. 21. 20091.0

1.1 Jan. 05. 2010 - Change the number of Page

- Update Power Consumption

31 Update global code

1.2 Jan. 07. 2010

7 Update Inverter Current (Typ.)

LC420WUN

Ver. 1. 2

3 /37

LC420WUN

Product Specification

1. General Description

The LC420WUN is a Color Active Matrix Liquid Crystal Display with an integral External Electrode Fluorescent
Lamp(EEFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive display type which is operating in the normally black mode. It has a 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 (FRC) colors.
It has been designed to apply the 10-bit 2-port LVDS interface.
It is intended to support LCD TV, PCTV where high brightness, super wide viewing angle, high color gamut,
high color depth and fast response time are important.

LVDS

LVDS 1,2

2Port

CN1

(51pin)

Option
signal

I2C

LVDS
Select

Bit
Select

+12.0V

EXTVBR-B

Status

+24.0V, GND

General Features

EEPROM

SCL

SDA

Timing Controller

LVDS Rx + DGA + ODC

Integrated

Power Circuit

Block

Inverter

42.02 inches(1067.31mm) diagonalActive Screen Size

983.0(H) x 576.0 (V) x 52.0 mm(D) (Typ.)Outline Dimension

0.4845 mm x 0.4845 mmPixel Pitch

1920 horiz. by 1080 vert. Pixels, RGB stripe arrangementPixel Format

10bit(D) , 1.06Billon colorsColor Depth

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

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

Mini-LVDS(RGB)

Control
Signals

Power Signals

3PinX1CN(High)

3PinX1CN(High)

Source Driver Circuit

S1 S1920

G1

TFT - LCD Panel

(1920 × RGB × 1080 pixels)

[Gate In Panel]

G1080

Back light Assembly

Ver. 1. 2

Total 147.8 W (typ.) (Logic=7.8W, Inverter=140W ) Power Consumption

9.1 Kg (Typ.) Weight

Transmissive mode, Normally blackDisplay Mode

Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 10%)Surface Treatment

4 /37

LC420WUN

Product Specification

2. Absolute Maximum Ratings

The following items are maximum values which, if exceeded, may cause faulty operation or damage to the
LCD module.

Table 1. ABSOLUTE MAXIMUM RATINGS

Parameter Symbol

Power Input Voltage

Inverter Control Voltage

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

T-Con LVDS Input Voltage VLVDS -0.3 +3.6 V

Operating Temperature TOP 0 +50 °C

Storage Temperature TST -20 +65 °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

Inverter VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON -0.3 +5.5 VDC

Brightness VBR 0.0 +5.0 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 degraded in case of
improper thermal management in final product design.

90%

1

2,3

2,3

Ver. 1. 2

Wet Bulb
Temperature [C]

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [C]

20

30

40

50

60

60%

40%

10%

Storage

Operation

Humidity

[(%)RH]

5 /37

LC420WUN

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 EEFL
backlight and inverter circuit.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

Circuit :

ILCDPower Input Current

Note

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

Value

MaxTypMin

=12.0V, Ta=25 ± 2°C, fV=60Hz

LCD

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

NoteUnit

VDC13.212.010.8VLCDPower Input Voltage

1mA845650455

2mA1242955668

1Watt7.8PLCDPower Consumption

3A5.0--IRUSHRush current

Ver. 1. 2

Mosaic Pattern(8 x 6)

6 /37

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC420WUN

Parameter Symbol

Inverter :

Power Supply Input Voltage VBL 22.8 24.0 25.2 VDC 1

Power Supply
Input Current

Power Supply Input Current (In-Rush) IRUSH - - 11 A

Power Consumption PBL -

Input Voltage for

Control System

Signals

Lamp:

Lamp Voltage

Lamp Current

After Aging IBL_A - 5.8

Before Aging IBL_B - 7.0

On/Off

Brightness Adjust EXTVBR-B 20 - 100 %

PWM Frequency for
NTSC & PAL

Pulse Duty
Level (PWM)
(Burst mode)

On VON 2.5 - 5.0 VDC

Off VOFF -0.3 0.0 0.8 VDC

PAL 100 Hz 5

NTSC 120 Hz 5

High Level 2.5 - 5.0 VDC

Low Level 0.0 - 0.8 VDC

VOUT

IOUT

Min Typ Max

900 1050 1200 VRMS

126 136 146 mARMS

Values

140 160

6.7

7.5

Unit Note

A 1

A 2

VBL = 22.8V

EXTVBR-B = 100%

W 1

On Duty

High: Lamp on
Low : Lamp off

EXTVBR-B =100%

EXTVBR-B =100%

6

7

1

1

Discharge Stabilization Time Ts

Life Time 50,000 60,000 Hrs 4

1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120

Note

3 min 3

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. Electrical characteristics are determined within 30 minutes at 25±2°C.

The specified currents are under the typical supply Input voltage 24V.

3. The brightness of the lamp after lighted for 5minutes is defined as 100%.
Ts is the time required for the brightness of the center of the lamp to be not less than 95% at typical current.

The screen of LCD module may be partially dark by the time the brightness of lamp is stable after turn on.

4. Specified Values are for a single lamp which is aligned horizontally.
The life time is determined as the time which luminance of the lamp is 50% compared to that of initial value
at the typical lamp current (EXTVBR-B :100%), on condition of continuous operating at 25± 2°C

5. LGD recommend that the PWM freq. is synchronized with Two times harmonic of Vsync signal of system.

6. The duration of rush current is about 10ms.

7. EXTVBR-B is based on input PWM duty of the inverter.

Ver. 1. 2

7 /37

LC420WUN

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14/12-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 table.

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

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

No Symbol Description No Symbol Description

1

2

3

4

5

6

7

8

9

10
11

12

13

14

15

16

17

18

19

20
21
22

23

24
25
26

GND Ground

NC No Connection

NC No Connection

NC No Connection (Reserved for LGD)

NC No Connection (Reserved for LGD)

NC No Connection (Reserved for LGD)

LVDS Select

NC No Connection

NC No Connection

NC No Connection

GND

R1AN

R1AP

R1BN

R1BP

R1CN

R1CP

GND

R1CLKN
R1CLKP

GND
R1DN

R1DP

R1EN
R1EP

NC

‘H’ =JEIDA , ‘L’ or NC = VESA

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

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

NC

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

No Connection

Note

Ver. 1. 2

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. #2~#6) are used for internal data process of the LCD module.
These pins should be no connection.

5. 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.

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

8 /37

3-2-2. Backlight Module

LC420WUN

Product Specification

[ Master ]

-Inverter Connector : S14B-PH-SM4(JST)

- Mating Connector : PHR-14

[ Slave ]

-Inverter Connector : S12B-PH-SM3(JST)

-Mating Connector : PHR-12

Table 5. INVERTER CONNECTOR PIN CONFIGULATION

Pin No Symbol Description Master Slave Note

1

2

3

4

5

6

7

8

9

10

11

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

VBL Power Supply +24.0V VBL VBL

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

GND Backlight Ground GND GND

NC No Connection NC NC

1

12

13

V

EXTVBR-B External PWM EXTVBR-B - 3

14

Note

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

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

Please see Appendix IV-1 for more information.

3. The impedance of pin #12 is over 50[KΩ] & the impedance of Pin #13 is over 100[KΩ].

◆◆◆◆ Rear view of LCM

◆◆◆◆ Rear view of LCM

Ver. 1. 2

ON/OFF

Status Lamp Status Status - 2

Backlight ON/OFF control V

PCB

14

…

…

ON/OFF

1

Don’t care 3

PCB

…

…

1

<Master>

12

<Slave>

9 /37

LC420WUN

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 6-1. TIMING TABLE for NTSC (DE Only Mode)

Symbol

Display Period

Horizontal

Vertical tHP694511tVBBlank

Frequency

Blank

Total

DCLK

Horizontal

Vertical

tHV

tHB

tHP

fCLK

fH

fV

Table 6-2. TIMING TABLE for PAL (DE Only Mode)

Symbol

Display Period

tHV

NoteUnitMaxTypMinITEM

tclk-960-

tclk240140100

2200/2tclk120011001060

tHP-1080-tVVDisplay Period

tHP114911251091tVPTotal

148.5/2MHz7774.2570

KHz7067.565

Hz636057

NoteUnitMaxTypMinITEM

tclk-960-

Horizontal

Vertical tHP348270228tVBBlank

Frequency

Note

The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode).
The performance of the electro-optical characteristics may be influenced by variance of the vertical

refresh rate.

Ver. 1. 2

Blank

Total

DCLK

Horizontal

Vertical

tHB

tHP

fCLK

fH

fV

tclk240140100

2200/2tclk120011001060

tHP-1080-tVVDisplay Period

tHP142813501308tVPTotal

148.5/2MHz7774.2570

KHz7067.565

Hz535047

10 /37

3-4. LVDS Signal Specification

3-4-1. LVDS Input Signal Timing Diagram

LC420WUN

Product Specification

DE, Data

DCLK

First data

Second data

0.7VDD

0.3VDD

tCLK

DE(Data Enable)

0.5 VDD

Invalid data

Invalid data

Valid data

Pixel 0,0

Valid data

Pixel 1,0

tHP

Pixel 2,0

Pixel 3,0

Invalid data

Invalid data

tHV

DE(Data Enable)

Ver. 1. 2

1 1080

tVV

tVP

11 /37

3-4-2. LVDS Input Signal Characteristics

1) DC Specification

LVDS -

LVDS +

LC420WUN

Product Specification

0V

LVDS Common mode Voltage

LVDS Input Voltage Range

2) AC Specification

LVDS Clock

LVDS Data

LVDS 1’st Clock

LVDS 2nd/ 3rd/ 4thClock

t

SKEW_mintSKEW_max

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

CM

A

(F

tSKEW

tSKEW

clk

T

clk

IN

= 1/T

V

CM

V

IN _ MAXVIN _MIN

NoteUnitMaxMinSymbolDescription

-V1.51.0V

-V1.80.7V

-mV250ΔVCMChange in common mode Voltage

T

clk

)

clk

A

80%

20%

t

RF

LVDS Differential Voltage

High Threshold

Low Threshold

LVDS Clock to Data Skew Margin

LVDS Clock/DATA Rising/Falling time

Effective time of LVDS

LVDS Clock to Clock Skew Margin (Even to Odd)

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

Note

2. If tRFisn’t enough, t

should be meet the range.

eff

3. LVDS Differential Voltage is defined within t

TH

TL

SKEW

RF

eff

t

SKEW_EO

260 ps(0.3*T

eff

Ver. 1. 2

1/7* T

NoteUnitMaxMinSymbolDescription

mV300100V

3

mV-100-300V

)/7|t

clk

)/7t

clk

-ps|(0.25*T

2

-ps±360t

T

clk

clk

-

12 /37

Product Specification

360ps

LC420WUN

V+
data

Vcm

V­data

V+
clk

Vcm

0.5tui

tui

VTH

VTL

360ps

teff

tui : Unit Interval

V­clk

Ver. 1. 2

13 /37

LC420WUN

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 (1022)

RED (1023)

GREEN (0000)

RED

MSB LSB

0 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 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 10 0 0 0 0 0 0 0 0 1

...…

......

1 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 01 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

GREEN

MSB LSB

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

BLUE

MSB LSB

B9 B8 B7 B6 B5 B4 B3 B2 B1 B0G9 G8 G7 G6 G5 G4 G3 G2 G1 G0R9 R8 R7 R6 R5 R4 R3 R2 R1 R0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 1

.........

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 0

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

GREEN

BLUE

Ver. 1. 2

GREEN (0001)

...

GREEN (1022)

GREEN (1023)

BLUE (0000)

BLUE (0001)

BLUE (1022)

BLUE (1023)

0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 1

......

......

1 1 1 1 1 1 1 1 1 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 01 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 1

......

0 0 0 0 0 0 0 0 0 01 1 1 1 1 1 1 1 1 0

0 0 0 0 0 0 0 0 0 01 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 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 00 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 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

0 0 0 0 0 0 0 0 0 10 0 0 0 0 0 0 0 0 1

...

.........…

......

1 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 00 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 01 1 1 1 1 1 1 1 1 0

1 1 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 10 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0

1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1

14 /37

3-6. Power Sequence

3-6-1. LCD Driving circuit

Power Supply For LCD

V

LCD

0V

10%

Product Specification

90%

LC420WUN

10%

10%

Interface Signal (Tx)

User Control Signal

(LVDS_select, BIT_select)

Power for Lamp

Table 8. POWER SEQUENCE

Parameter

T1 0.5 - 20 ms

T2 0 - - ms 4

T3 200 - - ms 3

T4 200 - - ms 3

T5 1.0 - - s 5

T6 - - T2 ms 4

T7 0.5 - s

T1

T2

30%

0V

100%

T6

T7

Value

Min Typ Max

Valid Data

T3 T4

Lamp ON

T5

Vcm : LVDS Common mode Voltage

Unit Notes

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

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

Ver. 1. 2

LCD

15 /37

),

3-6-2. Sequence for Inverter

LC420WUN

Product Specification

Power Supply For Inverter

VBL

0V

1)

VON/OFF

EXTVBR-B

3-6-3. Dip condition for Inverter

VBL(Typ.) x 0.8

10%

90%

T1 T2

T4

24V (typ.)

T7

Lamp ON

T6

T5

90%

V

: 24V

BL

0 V

Table 9. Power Sequence for Inverter

Parameter

Min Typ Max

T1 20 - - ms 1

T2 500 - - ms

T4 0 - ms 2

T5 10 - - ms

T6 - - 10 ms VBL(Typ) x 0.8

T7 1000 - - ms 3

Values

Units Note

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

2. T4(max) is less than T2.

3. It is the recommendation to input

1)

The recommendation of VON/OFF rising time is under 10ms.

Ver. 1. 2

2)

Max Duty to Inverter for EXTVBR-B during T7 period.

16 /37

LC420WUN

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 an approximate distance 50cm from the LCD surface at a viewing angle
of Φ and θ equal to 0 °.
It is presented additional information concerning the measurement equipment and method in FIG. 1.

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 8. OPTICAL CHARACTERISTICS

Parameter Symbol

Contrast Ratio CR 1000 1400 - 1

Surface Luminance, white L

Luminance Variation δ

Gray-to-Gray G to G - 7 ms 4

Response Time

Uniformity δ

WHITE

G TO G

WH

5P - - 1.3 3

Min Typ Max

400 500 - cd/m

- - 1

Value

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

LCD

EXTVBR-B =100%

Unit Note

2

ms

2

RED

Color Coordinates
[CIE1931]

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 - - - 6

Ver. 1. 2

GREEN

BLUE

WHITE

Rx

Ry 0.335

Gx 0.291

Gy 0.603

Bx 0.146

By 0.061

Wx 0.279

Wy 0.292

Typ

-0.03

0.636

Typ

+0.03

degree 5

17 /37

Product Specification

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

LC420WUN

Contrast Ratio =

Surface Luminance with all white pixels

Surface Luminance with all black pixels

It is measured at center 1-point.

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

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

3. The variation in surface luminance , δ WHITE is defined as :

δ WHITE(5P) = Maximum(L

Where L

on1

to L

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

on5

on1,Lon2

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

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

6. Gray scale specification

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

Table 11. GRAY SCALE SPECIFICATION

Gray Level

L0

L63

L127

L191

L255

L319

L383

L447

L511

L575

L639

L703

L767

L831

L895

L959

L1023

Min. Typ. Max.

0.04

0.10

0.56

1.57

3.00

5.00

7.90

10.6

13.9

18.5

24.5

32.7

42.4

53.2

64.3

76.5

100

, L

on3

, L

, L

on4

on5

Luminance [%]

) / Minimum(L

0.07

0.25

1.08

2.07

4.51

7.75

12.05

17.06

22.36

28.21

35.56

43.96

53.00

63.37

74.66

86.17
100

on1,Lon2

, L

on3

, L

on4

, L

0.14

0.42

1.64

3.63

6.80

11.2

16.3

22.8

29.3

37.5

46.3

55.1

64.2

75.0

86.3

95.0

100

on5

)

Ver. 1. 2

18 /37

Product Specification

Measuring point for surface luminance & luminance variation

H

A

LC420WUN

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

Ver. 1. 2

Optical
Response

10

0

Gray(N)

N,M = Black~White, N<M

FIG. 3 Response Time

Gray(M)

Gray(N)

19 /37

Dimension of viewing angle range

φ

= 180°, Left

Product Specification

Normal

E

θ

φ

Y

φ

= 90°, Up

φ

= 0°, Right

LC420WUN

φ

= 270°, Down

FIG. 4 Viewing Angle

7. Image sticking

When it changes into pattern-B after a 1-hour drive by pattern-A, it disappears within 10 minutes.

<Pattern-A, Chess board (8x6)> <Pattern-B, Mid-gray(511 gray)>

Ver. 1. 2

20 /37

Product Specification

5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

Horizontal 983.0 mm

LC420WUN

Outline Dimension

Bezel Area

Active Display Area

Weight 9.1 Kg (Typ.) , 10 Kg (Max.)

Vertical 576.0 mm

Depth 52.0 mm

Horizontal 939.0 mm

Vertical 531.0 mm

Horizontal 930.24 mm

Vertical 523.26 mm

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

Ver. 1. 2

21 /37

[ FRONT VIEW ]

LC420WUN

Product Specification

Ver. 1. 2

22 /37

Product Specification

LC420WUN

Ver. 1. 2

23 /37

Product Specification

6. Reliability

Table 13. ENVIRONMENT TEST CONDITION

LC420WUN

ConditionTest ItemNo.

Ta= 60°C, 500hHigh temperature storage test1

Ta= -20°C, 500hLow temperature storage test2

7

8

High temperature operation test3

Heat cycle test5

Soldering heat cycle test6

Vibration test
(non-operating)

Shock test
(non-operating)

ESD test9

Ta= 50°C, 80%RH, 500h
Ta= 60°C, 500h(2000h)

Ta= 0°C, 500h(1000h)Low temperature operation test4

Ta= -20 °C ~ 60 °C,
30min/5min/30min, 100cycles

Ta= -40 °C ~ 80 °C,
30min/5min/30min, 200cycles

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

Each direction per 10 min.

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

One time each direction

Condition : 150pF, 330 ohm

Case , air

Evaluation : ± 15kV

Ta= 40 °C, 70%RH, 240hHumidity storage test10

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

Ver. 1. 2

24 /37

LC420WUN

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.

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. 2

25 /37

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

200320022001

200452005

2006720078200892009

LC420WUN

2010

Mark

321

4

6

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 : 12 pcs

b) Pallet Size : 1150 mm X 1020 mm X 815 mm.

0

Oct

A

Nov

B

DecMarFebJan

C421

Ver. 1. 2

26 /37

LC420WUN

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 transformers to prevent abnormal display,

sound noise and temperature rising.

(11) Partial darkness may happen during 3~5 minutes when LCM is operated initially in condition that

luminance is under 40% at low temperature (under 5℃). This phenomenon which disappears naturally
after 3~5 minutes is not a problem about reliability but LCD characteristic.

Ver. 1. 2

27 /37

LC420WUN

Product Specification

(12) Partial darkness may happen under the long-term operation of any dimming without power on/off.

This phenomenon which disappears naturally after 5 minutes is not a problem about reliability but

LCD characteristics.

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.

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 ion­blown 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 normal­hexane.

.

Ver. 1. 2

28 /37

# APPENDIX-I

■■■■ LC420WUN-SCD1 – Pallet Ass’y

LC420WUN

Product Specification

Ver. 1. 2

MATERIALDESCRIPTIONNO.

LCD Module1

42INCHBAG2

MASKING 20MM X 50MTAPE3

Plywood (1140X990X125.5)PALLET4

PACKING EPS5

6

PACKING

ANGLE POST7

ANGLE PACKING8

BAND,CLIP9

BAND10

LABEL11

YUPO PAPER 80G 100X70

EPS

PAPER

PAPER

STEEL

PP

29 /37

# APPENDIX- II-1

■ LC420WUN-SCD1-LCM Label

LC420WUN

Product Specification

Model

UL, TUV Mark

LGD Logo

US PATENT No.

LC420WUN
(SC)(D1)

RoHS Verified

L5EDDAT00008

Serial No.

Origin

Ver. 1. 2

30 /37

# APPENDIX- II-2

# APPENDIX- II-2

■ LC420WUN-SCD1-Pallet Label

■ LC420WUN-SCD1-Pallet Label

LC420WUN

LC420WUN

Product Specification

SCD1

12 PCS

MADE IN KOREA

* * * * * * * * * * * * * * * *

LOT/MM-DD

RoHS Verified

L5EDDAT00008

Ver. 1. 2

31 /37

# APPENDIX- III-1

LC420WUN

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

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

RO4N

RO4P

VESA/ JEIDA

L”)

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. 2

32 /37

# APPENDIX- III-1

LC420WUN

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

Timing

Controller

RO0N

RO0P

RO1N

RO1P

RO2N

RO2P

ROCLKN

ROCLKP

RO3N

RO3P

RO4N

RO4P

VESA /

JEIDA

H”)

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. 2

33 /37

Product Specification

# APPENDIX- III-2

■ LVDS Data-Mapping Information (10 Bit )

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

RCLKP

RCLKM

LC420WUN

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. 2

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 /37

34 /39

Product Specification

# APPENDIX- III-2

■ LVDS Data-Mapping Information (8 Bit )

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

RCLKP

RCLKM

LC420WUN

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. 2

RCP

RDP

V

SYNCHSYNC

B15 B14DE B13B12’ B12B13’ DE”

B17 B16 G17 G16X R17R16’ R16R17’ X”

35 /37

Product Specification

# APPENDIX- III-3

■ Option Pin Circuit Block Diagram

1) Circuit Block Diagram of LVDS Format Selection pin

OPEN

1KΩΩΩΩ

LVDS Select

(Pin 9)

LC420WUN

VCC

LVDS Select

25~110KΩΩΩΩ

ASIC

(TCON)

System Side LCM Side

2) Circuit Block Diagram of Bit Selection pin

R1

Bit Selection

(Pin 27)

1KΩΩΩΩ

OPEN

System Side

R1 ≤≤≤≤ 1KΩΩΩΩ

VCC

38~110KΩΩΩΩ

Bit Selection

ASIC

(TCON)

LCM Side

Ver. 1. 2

36 /37

Product Specification

# APPENDIX- IV

■ Inverter 14thPin (Status) Design Guide

1) Function of Status pin

- Purpose : Preventing of backlight off by restarting the inverter technically

- Purpose : Preventing of backlight off by restarting the inverter technically

- How to : When inverter is abnormal operation, TV system inputs the Von signal

- How to : When inverter is abnormal operation, TV system inputs the Von signal

in the inverter once more to turn on the lamp safely

in the inverter once more to turn on the lamp safely

- Attention : Restart system’s Von signal when status pin is high for some time (min:1sec , max:4sec).

- Attention : Restart system’s Von signal when status pin is high for some time (min:

(The turn on time of lamp can be late such as the low temperature or the storage time)

(The turn on time of lamp can be late such as the low temperature or the storage time)

2) Status operation modes in TV set2) Status operation modes in TV set

1sec , max:4sec).

LC420WUN

Normal

Mode

Status

operation

mode

System

Inverter

System Von

System Von

VON/OFF [12pin]

Backlight

Status [14pin]

Lamp turn on

Fail of Lamp turn on

Lamp turn on

V

ON

Fail

Status

1sec

~4sec

Status level low

Status level High

Feedback to system

Again System Von

Restart V

More than 0.1sec

Lamp ON

ON

3) Inverter pin map3) Inverter pin map

Pin No Symbol Description Inv.

11 NC

ON/OFF

12

13

14 Status Normal : Under 0.7V / Abnormal : Upper 3.0V status

Ver. 1. 2

V

EXTVBR-B Burst Dimming Control PWM signal input

No Connection

Backlight ON/OFF control On/Off

NC

External PWM

37 /37