LG Display LC260WXE-SBB1 Specification

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LC260WXE

Product Specification

SPECIFICATION

FOR

APPROVAL

)

(

(

Preliminary Specification

)

Final Specification



Title 26.0” WXGA TFT LCD

BUYER

MODEL

APPROVED BY

SIGNATURE

DATE

/

SUPPLIER LG Display Co., Ltd.

*MODEL LC260WXE

SUFFIX SBB1(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

H.S.SONG / Team Leader

REVIEWED BY

SIGNATURE

DATE

/

/

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.2

S.S.KIM / Project Leader

PREPARED BY

Y.G.SON / Engineer

TV Product Development Dept.

LG Display Co., Ltd

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LC260WXE

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 SIGNAL TIMING WAVEFORMS

3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

Page

1

2

3

4

5

6

6

8

10

11

12

13

15

19

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC

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

22

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Revision No. Revision Date Page Description

0.1 Sep, 16, 2008 - Preliminary Specification (First Draft)

0.2 Nov. 04, 2008 4, 20 Changed the LCM Weight (Typ. : 4100 ˧ 3900g)

0.3 Nov. 12, 2008 7 Changed the Lamp Current (Typ. : 7.75 ˧ 7.5mA)

0.4 Dec. 15, 2008 6 Updated the Power Consumption of Logic.

1.0 Dec. 27, 2008 16 Added the Black Uniformity Specification.

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LC260WXE

Product Specification

RECORD OF REVISIONS

6 Updated the Input Current. (Refer to Table 2)

7 Updated the Electrical Characteristics for IPB & Lamp

7,8 Updated the Electrical Characteristics for IPB & Lamp

16 Updated the color Coordinates.

21,22 Updated the Mechanical Drawings.

45 Added the White Uniformity for PWM Duty 50%

1.1 Feb. 19. 2009 21,22

1.2 June.26 12

Final Specification

Mechanical design updated

Updated Vsync period

Ver. 1.2

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1. General Description

The LC260WXE 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 26.01 inch diagonally
measured active display area with WXGA resolution (768 vertical by 1366 horizontal pixel array).
Each pixel is divided into Red, Green and Blue sub-pixels or dots which are arranged in Horizontal stripes.
Gray scale or the luminance of the sub-pixel color is determined with a 8-bit gray scale signal for each dot,
thus presenting a palette of more than 16.7M(true) colors.
It has been designed to apply the 8-bit 1-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.

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LC260WXE

Product Specification

EEPROM

+12.0V

LVDS 1Port

LVDS Select

High Input

High Input

#9

CN1

(30pin)

SCL

Timing Controller
[LVDS Rx + ODC]

Power Circuit

Block

CN2, 3pin, 12 Lamps/@90mA

CN3, 3pin, 12 Lamps/@90mA

SDA

TFT - LCD Panel

(1366 Ý 768 x RGB pixels)

[Gate In Panel]

S1 S1366

RGB

Source Driver Circuit

Back light Assembly (12EEFL)

General Features

Active Screen Size 26.01 inches(660.6mm) diagonal

Outline Dimension 626 mm (H) x 373 mm (V) x 30.5 mm (D) (Typ.)

Pixel Pitch 0.4215 mm x 0.1405 mm x RGB

Pixel Format 1366 horiz. by 768 vert. pixels RGB horizontal stripe arrangement

Color Depth 8bit, 16,7 M colors

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

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

Power Consumption Total 78.36 Watt (Logic=3.36W, Back Light= 75W @ With Inverter )

Weight 3,900g (Typ.)

Display Operating Mode Transmissive mode, Normally black

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

Ver. 1.2

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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

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LC260WXE

Product Specification

Parameter Symbol

Unit Remark

Min Max

Value

Power Input
Voltage

B/L Input voltage

Operating Temperature TOP 0 +50 ¶C

Storage Temperature TST -20 +60 ¶C

Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

LCD circuit VLCD -0.3 +14.0 V [DC]

Operating Voltage
(one side)

VOP 700 1100 V[ RMS] GY\Gr YG¶j

Notes : 1. Temperature and relative humidity range are shown in the figure below.

Wet bulb temperature should be Max. 39 ¶C and no condensation of water.

2. Gravity mura can be guaranteed below 40୅ condition.

90%

60

60%

GY\Gr YG¶j

Note 1,2

Ver. 1.2

Wet Bulb
Temperature [

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [

¶C

20

50

]

30

40

¶C

40%

Humidity [(%)RH]

10%

]

Storage

Operation

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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 circuit.

Table 2. ELECTRICAL CHARACTERISTICS

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LC260WXE

Product Specification

Parameter Symbol

Value

Min Typ Max

Circuit :

Power Input Voltage V

Permissive Power Input Ripple

LCD

LCD

10.8 12.0 13.2 V

- 280 364 mA 1

Power Input Current I

Power Consumption P

Rush current I

LCD

LCD

RUSH

- 360 468 mA 2

- 3.36 4.37 Watt 1

- - 3.0 A 3

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

condition whereas mosaic pattern(8 x 6) is displayed and f

is the frame frequency.

V

2. The current is specified at maximum current pattern (Vertical 2 Line).

3. Permissive power ripple should be measured under

VLCD = 12.0V, 25୅, fV = 60Hz condition.

LGD recommend the bandwidth configuration of oscilloscope is to be under 20MHz.
And the Power input ripple is specified at full white pattern

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

Unit Note

DC

=12.0V, 25 r 2¶C, fV=60Hz

LCD

3V0.3V

White : 255 Gray
Black : 0 Gray

Mosaic Pattern(8 x 6)

Ver. 1.2

Foreground : 255 Gray
Background : 0 Gray

Vertical 2 Line

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Table 3. ELECTRICAL CHARACTERISTICS for IPB& Lamp (Continue)

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LC260WXE

Product Specification

Parameter Symbol

Values

Unit Notes

Min Typ Max

Backlight Assembly :

Operating Voltage
(one side,fBL=63KHz, IBL

Operating Current (one side) IBL 84 90 96 mA

Established Starting
Voltage (one side)

Operating Frequency fBL 61 63 65 kHz 4

Striking Time S TIME --2sec 3

Power Consumption PBL 75 Watt 6

Burst Dimming Duty {a/T}*100 20 100 % 9

Burst Dimming Frequency 1/T 95 - 182 Hz 9

=90mArms)

0୅
25୅ - - 810

Parameter Symbol

VBL 870 950 1030 V

VS

- - 900

Values

RMS

RMS

V

RMS

1, 2

1

1, 3

Unit Notes

Min Typ Max

Lamp : APPENDIX-V

Lamp Voltage (one side) VLAMP 665 1040 1140 V

Lamp Current (one side) ILAMP 3.0 7.5 8.5 mA

Discharge Stabilization Time TS --3Min 5

Lamp Frequency f LAMP 40 63 80 KHz
Lamp Temperature TLAMP 130 ¶C

Established Starting
Voltage (one side)

Life Time 50,000 Hrs 7

0୅ VS 900

25୅ VS 810

RMS

RMS

V

RMS

2

1

3

Notes : The design of the inverter must have specifications for the lamp in LCD Assembly.

The electrical characteristics of inverter are based on High-High Driving type.
The performance of the lamps in LCM, for example life time or brightness, is extremely influenced by

the characteristics of the DC-AC inverter. So, all the parameters of an inverter should be carefully

designed so as not to produce too much leakage current from high-voltage output of the inverter.

When you design or order the inverter, please make sure unwanted lighting caused by the mismatch

of the lamp and the inverter (no lighting, flicker, etc) has never been occurred. When you confirm it,

the LCD– Assembly should be operated in the same condition as installed in your instrument.

୔ Do not attach a conductive tape to lamp connecting wire.

If you attach conductive tape to the lamp wire, not only luminance level can be lower than typical one
but also inverter operate abnormally on account of leakage current which is generated between lamp wire
and conductive tape.

1. Specified values are defined for a Backlight Assembly.( IBL : 12 lamp, 7.5mA/Lamp)

2. Operating voltage is measured at 25 r 2¶C(after 2hr.aging). The variance range for operating voltage is r 10%.

3. The established starting voltage [

VS ] should be applied to the lamps for more than Striking time (S TIME)

for start-up. Inverter open voltage must be more than established starting voltage. Otherwise, the lamps may
not be turned on. The used lamp current is typical value.

Ver. 1.2

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LC260WXE

Product Specification

S TIME

Vs = (Vpk-pk) / [ 2*root(2)]

4. Lamp frequency may produce interference with horizontal synchronous frequency. As a result, the may
cause beat on the display. Therefore, lamp frequency shall be away as much as possible from the horizontal
synchronous frequency and its harmonics range in order to prevent interference.

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

T

S

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

6. Maximum level of power consumption is measured at initial turn on.

Typical level of power consumption is measured after 2hrs aging at 25 r 2¶C.

7. The life time is determined as the time at which brightness of the lamp is 50% compared to that of initial

value at the typical lamp current on condition of continuous operating at 25 r 2¶C, based on duty 100%.

8.The output of the inverter must have symmetrical (negative and positive) voltage and current waveform
(Unsymmetrical ratio is less than 10%). Please do not use the inverter which has not only unsymmetrical

voltage and current but also spike wave.
Requirements for a system inverter design, which is intended to achieve better display performance,

power efficiency and more reliable lamp characteristics.
It can help increase the lamp lifetime and reduce leakage current.

a. The asymmetry rate of the inverter waveform should be less than 10%.
b. The distortion rate of the waveform should be within √2±10%.

* Inverter output waveform had better be more similar to ideal sine wave.

* Asymmetry rate:

I p

| I

–I –p| / Iopx 100%

p

* Distortion rate

I -p

I

(or I –p) / I

p

Ver. 1.2

op

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9. The reference method of burst dimming duty ratio.
It is recommended to use synchronous V-sync frequency to prevent waterfall
(Vsync x 2 =Burst Frequency)

PWM

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LC260WXE

Product Specification

{

A

+3.3V TTL

I-out

Output of Inverter to Lamp

90%

PWM duty={ A/T } * 100

Point A : rising time 90% of Iout point .
Point B : falling starting point .
I out duty = { a/T } * 100
PWM Frequency = 1/T

୔ We recommend not to be much different between PWM duty and Iout duty .
୔ Dimming current output rising and falling time may produce humming and inverter trans’ sound noise.
୔ Burst dimming duty should be 100% for more than 1second after turn on
୔ Equipment

Oscilloscope :TDS3054B(Tektronix)
Current Probe : P6022 AC (Tektronix)
High Voltage Probe: P5100(Tektronix)

10. The Cable between the backlight connector and its inverter power supply should be connected directly
with a minimized length. The longer cable between the backlight and the inverter may cause the lower
luminance of lamp and may require more higher starting voltage ( Vs ).

Point A

a

Point B

11. The operating current must be measured as near as backlight assembly input.

12. The operating current unbalance between left and right must be under 10% of Typical current

Left(Master) current – Right(Slave) Currentର 10% of typical current

13. The measurement method of V

Ver. 1.2

& IBLrefer to appendix VIII.

BL

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3-2. Interface Connections

This LCD module employs two kinds of interface connection, a 30-pin connector is used for the module
electronics and 3-pin Balance PCB connectors is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN1) : KDF71G-30S-1H(Hirose) or FI-X30SSL-HF(JAE)

- Mating Connector : : FI-X30C2L (Manufactured by JAE) or Equivalent

Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION

Pin No. Symbol Description Note

1 VLCD Power Supply +12.0V
2 VLCD Power Supply +12.0V
3 VLCD Power Supply +12.0V
4 VLCD Power Supply +12.0V
5 GND Ground
6 GND Ground
7 GND Ground
7 GND Ground

9
10
11 GND Ground
12 RA- LVDS Receiver Signal(-)
13 RA+ LVDS Receiver Signal(+)
14 GND Ground
15 RB- LVDS Receiver Signal(-)
16 RB+ LVDS Receiver Signal(+)
17 GND Ground
18 RC- LVDS Receiver Signal(-)
19 RC+ LVDS Receiver Signal(+)
20 GND Ground
21 RCLK- LVDS Receiver Clock Signal(-)
22 RCLK+ LVDS Receiver Clock Signal(+)
23 GND Ground
24 RD- LVDS Receiver Signal(-)
25 RD+ LVDS Receiver Signal(+)
26 GND Ground
27
28

29 GND Ground

30 GND Ground

LVDS Select ‘H’ =JEIDA , ‘L’ or NC = VESA

uj

uj
uj

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LC260WXE

Product Specification

Appendix VII

No Connection

No Connection
No Connection

Notes :

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. (Please see the Appendix X)

4. Specific pin No. #30 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).

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◆

3-2-2. Backlight Module

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LC260WXE

Product Specification

[ Master ]

1) Balance Connector

: 65002WS-03 (Manufactured by YEONHO) or equivalent

2) Mating Connector

: 65002HS-03 (Manufactured by YEONHO) or equivalent.

[ Slave ]

1) Balance Connector

: 65002WS-03 (manufactured by YEONHO) or equivalent

2) Mating Connector

: 65002HS-03 (manufactured by YEONHO) or equivalent.

Table 5. BACKLIGHT CONNECTOR PIN CONFIGURATION(CN2,CN3)

No Symbol Master Slave Note

1

2

3 FB NC NC

H_Input

H_Input

High_Input High_Input

High_Input High_Input

Rear view of LCM

123

Master

1

23

Slave

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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.

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LC260WXE

Product Specification

Table 6. TIMING TABLE for NTSC & PAL

[ DE (Data Enable) Only ]

ITEM Symbol Min Typ Max Unit Note

Period tCLK 12.5 13.8 15.8 ns

DCLK

Frequency - 63 72.4 80 MHz

HT 1456 1528 1920 tCLK

-

HFP 40 80 -

VV 768 768 768 tHP

tHP- tHV 162 tHP- tHV

KHz

Hsync

Period t

Horizontal Valid tHV 1366 1366 1366 tCLK

Horizontal Blank

Frequency fH 45 47.4 50

Width tWH -32-tCLK

Horizontal Back Porch tHBP 24 48 -

Horizontal Front Porch t

Period tVT 776 790 1063 tHP

Vertical Valid t

Vertical Blank - tVP- tVV 22 tVP- tVV tHP

Vsync

Frequency fV

Width t

Vertical Back Porch tVBP 5

Vertical Front Porch t

WV -

VFP 1

(47)

57

60

(50)

5

(12)

15

(128)

2

(40)

63

(53)

-t

-Hz

-tHP

Hz

HP

Note 1)
NTSC : 57~63Hz
(PAL : 47~53Hz)

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

3. Timing should be set based on clock frequency.

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3-4. Signal Timing Waveforms

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LC260WXE

Product Specification

DCLK

First data

Second data

tCLK

DE(Data Enable)

0.5 VDD

Invalid data

Invalid data

DE, Data

Valid data

Pixel 0,0

Valid data

Pixel 1,0

0.7VDD

Pixel 2,0

Pixel 3,0

0.3VDD

Invalid data

Invalid data

tHV

DE(Data Enable)

Ver. 1.2

tHT

1 768

tVV

tVT

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3-5. Color Data Reference

The brightness of each primary color (Red, Green, Blue) is based on the 8-bit 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

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LC260WXE

Product Specification

Input Color Data

Basic
Color

RED

Color

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

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

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

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

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

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

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

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

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

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

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

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

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

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

MSB LSB

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

RED

MSB LSB

GREEN

BLUE

MSB LSB

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

GREEN

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

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

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

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

BLUE

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

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

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

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

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3-6. Power Sequence

3-6-1. LCD Driving circuit

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LC260WXE

Product Specification

Power Supply For LCD

V

LCD

Interface Signal (Tx)

Option Signal

(LVDS_Select)

Power for Lamp

Table 9. POWER SEQUENCE

Parameter

T1 0.5 - 20 ms

T2 0.5 - - ms 4

T3 200 - - ms 3

T4 200 - - ms 3

T5 0 - - ms

T6 2.0 - - s 5

T7 0.5 - T2 ms 4

T8 0 - - ms 4

T9 T

90%

10%

0V

1

T

T2

Invalid

30%

0V

Min Typ Max

2 +T3 -5s

Data

T7

T9

Value

Valid Data

Invalid
Data

T3 T4

Lamp ON

90%

10%

T6

T5

T8

Unit Notes

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

2. When the interface signal is invalid, be sure to pull down the power supply V

LCD

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 Option signals) precedes the on time of Power (V
it will be happened abnormal display.

5. T6 should be measured after the Module has been fully discharged between power off and on
period.

Ver. 1.2

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LCD

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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 ) and T
equal to 0 ¶.
FIG. 1 shows additional information concerning the measurement equipment and method.

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LC260WXE

Product Specification

Optical Stage(x,y)

LCD Module

Pritchard 880 or
equivalent

50cm

FIG. 1 Optical Characteristic Measurement Equipment and Method

Table 10. OPTICAL CHARACTERISTICS

Ta= 25·2¶C, V

=12.0V, fV=60Hz, Dclk=72.4MHz, IBL=90mArms

LCD

Value

Parameter Symbol

Unit Note

Min Typ Max

Contrast Ratio CR 700 1000 - 1

Surface Luminance, white L

Luminance Variation

Response Time

Color Coordinates
[CIE1931]

Viewing Angle (CR>10)

Gray Scale - 7

Gray-to-Gray G to G -812 ms 4
Uniformity G

RED

GREEN

BLUE

WHITE

x axis, right(I=0¶) Tr 89 - -
x axis, left (I=180¶) Tl 89 - -
y axis, up (I=90¶) Tu 89 - -
y axis, down (I=270¶) Td 89 - -

WH

G

WHITE

BLACK

5P - - 1.3

G TO G

Rx

Ry 0.333

Gx 0.290

Gy 0.607

Bx 0.145

By 0.061

Wx 0.279

Wy 0.292

360 450 cd/m

1.75PG

--1 5

0.637

Typ

-0.03

Typ

+0.03

2

degree 6

2

3

8%1.8Cross Talk

Ver. 1.2

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

CR =

It is measured at center 1-point.

2. Surface luminance is determined after the unit has been ‘ON’ and 1Hour 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 , G WHITE and G BLACK are defined as :

G WHITE(5P) = Maximum(L
G BLACK(5P) = Maximum(L

Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations .

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, Tr
and from G(M) to G(N) (Decay Time, Tr

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

5. Gray to Gray Response time uniformity is Reference data. Please see Appendix XI.

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

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

7. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 11.

8. Crosstalk is defined as : (~L

Surface Luminance at all white pixels

Surface Luminance at all black pixels

Photo Detector : RD-80S / Field : 2 ¶

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Product Specification

, L

, L

on1,Lon2

on1,Lon2

A[or C]2-LA[or C]1

(~L

B[or D]2-LB[or D]1

, L

on3

on3

D

For more information, see FIG. 5.

, L

on4

on4

, L

on5

on5

, L

). For additional information see the FIG. 3. (N<M)

~/L

~/L

) u100(%) [vertical],

A[or C]1

) u100(%) [horizontal]

B[or D]1

) / Minimum(L
) / Minimum(L

on1,Lon2

on1,Lon2

, L
, L

on3

on3

, L
, L

on4

on4

, L
, L

LC260WXE

)

on5

)

on5

)

R

Table 11. GRAY SCALE SPECIFICATION

Gray Level Luminance [%] (Typ.)

L0

L15

L31

L47

L63

L79

L95

L111

L127

L143

L159

L175

L191

L207

L223

L239

L255

Ver. 1.2

0.10

0.27

1.04

2.49

4.68

7.66

11.5

16.1

21.6

28.1

35.4

43.7

53.0

63.2

74.5

86.7

100

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ྙ

ྛྚ

ྜྷ

ྜ

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

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LC260WXE

Product Specification

H

A

V

B

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

TrD

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

Optical
Response

Ver. 1.2

10

0

Gray(N)

N,M = 0(Black)~255(White), N<M

FIG. 3 Response Time

Gray(M)

Gray(N)

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Dimension of viewing angle range

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LC260WXE

Product Specification

I

= 180q, Left

I

= 270q, Down

Normal

T

I

FIG. 4 Viewing Angle

E

Y

I

= 90q, Up

I

= 0q, Right

B

Ver. 1.2

Pattern 1 Pattern 2

(Half Gray: Gray 127) (Background: Gray 127, Rectangular: Gray 0)

A/2

L

A

1

L

B

1

L

C

1

A/8

L

1

B/8

D

B/2

A/4 A/2 A/4

L

A

2

L

B

2

L

C

2

L

2

A

FIG. 5 Cross Talk

B/4

B/2

D

B/4

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5. Mechanical Characteristics

Table 12 provides general mechanical characteristics.

Table 12. MECHANICAL CHARACTERISTICS

Item Value

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LC260WXE

Product Specification

626.0mm

373.0 mm

30.5 mm (Body)

580.8mm

Outline Dimension

Horizontal

Vertical

Depth

Horizontal

Bezel Area

Vertical

Horizontal

328.8mm

575.769mm

Active Display Area

323.712mm

Weight

Vertical

3,900 g (Typ.), 4,100g (Max.)

Note : 1.Please refer to a mechanical drawing in terms of tolerance at the next page.

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<FRONT VIEW>

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LC260WXE

Product Specification

Ver. 1.2

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<REAR VIEW><REAR VIEW>

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LC260WXE

Product Specification

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6. Reliability

Table 13. ENVIRONMENT TEST CONDITION

No. Test Item Condition

1 High temperature storage test Ta= 60¶C 75%RH 240h

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

3 High temperature operation test Ta= 50¶C 60%RH 240h

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

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LC260WXE

Product Specification

Wave form : random

5

6

7 ESD test

9

Vibration test
(non-operating)

Shock test
(non-operating)

Altitude operating

storage / shipment

Vibration level : 1.0G RMS
Bandwidth : 10-300Hz
Duration : X,Y,Z, axis

Each direction per 10min

Shock level : 100G
Waveform : half sine wave, 2ms
Direction : ᇹX, ᇹY, ᇹZ

One time each direction

Condition : 150pF, 330 ohm

Case , air

Evaluation : · 15kV

Ta= 40 ¶C ,90%RHHumidity condition Operation8

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

th

a) UL 60065, 7

Standard for Audio, Video and Similar Electronic Apparatus.

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

Standard for Audio, Video and Similar Electronic Apparatus.

c) IEC60065:2001, 7

Safety requirements for Audio, Video and Similar Electronic Apparatus..

Edition, dated June 30, 2003, Underwriters Laboratories, Inc.,

th

Edition CB-scheme and EN 60065:2002,

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LC260WXE

Product Specification

7-2. EMC

a) ANSI C63.4 “Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and

Electrical Equipment in the Range of 9kHZ to 40GHz. “American National Standards Institute(ANSI),
1992

b) CISPR13 "Limits and Methods of Measurement of Radio interference characteristics of Sound

and Television broadcast receivers and associated equipment"

CISPR22 "Limits and Methods of Measurement of Radio interference characteristics of Information

Technology Equipment" International Special Committee on Radio Interference.

c) EN55013 "Limits and Methods of Measurement of Radio interference characteristics of Sound and

Television broadcast receivers and associated equipment"

EN55022 "Limits and Methods of Measurement of Radio interference characteristics of Information

Technology Equipment" European Committee for Electro Technical Standardization.(CENELEC),
1988(Including A1:2000)

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8. Packing

8-1. Information of LCM Label

a) Lot Mark

ABCDEFGHI JKLM

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

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LC260WXE

Product Specification

Note

1. YEAR

Year

Mark

321

200452005

4

200320022001

2006720078200892009

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 box : 6 pcs

2010

0

Oct

A

Nov

B

DecMarFebJan

C321

b) Box size : 750mm(W) X 504mm(D) X 458mm(H)

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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.

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LC260WXE

Product Specification

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 causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
(10) 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.

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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.

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LC260WXE

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.

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.

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˟

˟

˟

˟

˟

# APPENDIX-I-1

 Required signal assignment for Flat Link Transmitter(Pin9=“L” or NC)

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LC260WXE

Product Specification

Host System

24 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6

RED7
GREEN0
GREEN1
GREEN2
GREEN3
GREEN4
GREEN5
GREEN6
GREEN7

BLUE0
BLUE1
BLUE2
BLUE3
BLUE4
BLUE5
BLUE6
BLUE7

Hsync
Vsync

Data Enable

CLOCK

DS90C385

or Compatible

51
52
54
55
56
3
50
2
4
6
7
11
12
14
8
10
15
19
20
22
23
24
16
18
27
28
30
31

TxCLKOUT­TxCLKOUT+

TxOUT0­TxOUT0+

TxOUT1­TxOUT1+

TxOUT2­TxOUT2+

TxOUT3­TxOUT3+

KDF71G-30S-1H

48

47

46

45

42

41

40

39

38

37

GND

GND

12
13

15
16

18
19

21
22

24
25

30

Timing

Controller

100

100

100

100

100

9

RxIN0­RxIN0+

RxIN1­RxIN1+

RxIN2­RxIN2+

RxCLKIN­RxCLKIN+

RxIN3­RxIN3+

VESA / JEIDA

LCD Test

LCD Module

Notes:

1. The LCD module uses a 100 Ohm(ᆅ) resistor between positive and negative lines
of each receiver input.

2. Refer to LVDS transmitter data sheet for detail descriptions. (DS90C385 or Compatible)

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

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˟

˟

˟

˟

˟

# APPENDIX-I-2

 Required signal assignment for Flat Link Transmitter(Pin9=“H”)

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LC260WXE

Product Specification

Host System

24 Bit

RED0
RED1
RED2
RED3
RED4
RED5
RED6

RED7
GREEN0
GREEN1
GREEN2
GREEN3
GREEN4
GREEN5
GREEN6
GREEN7

BLUE0
BLUE1
BLUE2
BLUE3
BLUE4
BLUE5
BLUE6
BLUE7

Hsync
Vsync

Data Enable

CLOCK

DS90C385

or Compatible

50
2
51
52
54
55
56
3
8
10
4
6
7
11
12
14

16
18
15
19
20
22
23
24
27
28
30
31

TxCLKOUT­TxCLKOUT+

TxOUT0­TxOUT0+

TxOUT1­TxOUT1+

TxOUT2­TxOUT2+

TxOUT3­TxOUT3+

KDF71G-30S-1H

48

47

46

45

42

41

40

39

38

37

GND

Vcc

12
13

15
16

18
19

21
22

24
25

30

Timing

Controller

100

100

100

100

100

9

RxIN0­RxIN0+

RxIN1­RxIN1+

RxIN2­RxIN2+

RxCLKIN­RxCLKIN+

RxIN3­RxIN3+

VESA /

LCD Test

JEIDA

LCD Module

Notes:

1. The LCD module uses a 100 Ohm(ᆅ) resistor between positive and negative lines
of each receiver input.

2. Refer to LVDS transmitter data sheet for detail descriptions. (DS90C385 or Compatible)

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

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# APPENDIX-้-1

 Packing Ass’y

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LC260WXE

Product Specification

NO. DESCRIPTION

1LCD Module

2BAG

3 TAPE MASKING

4 Packing(B) EPS

5/6 Packing(L/R) EPS

7 BOX SWR4

8 TAPE OPP

Ver. 1.2

MATERIAL

AL

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# APPENDIX-้-2

 Pallet Ass’y

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LC260WXE

Product Specification

NO. DESCRIPTION MATERIAL

1 PACKING ASS’Y

2 PALLET

3BAND

4 CLIP, BAND

5 ANGLE, PACKING

6 LABEL

Ver. 1.2

PAPER (SWR4)

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Plywood

PP

STEEL

PAPER

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# APPENDIX- III

غ LCM Label

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LC260WXE

Product Specification

Model

UL, TUV Mark

LGD Logo

US PATENT No.

LC260WXE
(SB)(B1)

RoHS Verified

MADE IN KOREA

Serial No.

Origin

Ver. 1.2

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# APPENDIX- IV

 Box Label  Pallet Label

LC260WXE

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Product Specification

LC260WXE

6 PCS

SBB1

LC260WXE

SBB1

24 PCS

RoHS Verified

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˟

˟

# APPENDIX- V

Option Pin Circuit Block Diagram

Circuit Block Diagram of LVDS Format Selection pin

Selector (Pin 9) Selector

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Product Specification

VCC

Open

1K

LC260WXE

System Side LCM Side

50K

ASIC

(TCON)

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# APPENDIX- VI-1

LVDS Input characteristics

1. DC Specification

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LC260WXE

Product Specification

LVDS Common mode Voltage

LVDS Input Voltage Range

Change in common mode Voltage

2. AC Specification

LVDS Clock

LVDS Data

LVDS Clock to Data Skew Margin

LVDS Clock/DATA Rising/Falling time

Effective time of LVDS

tSKEW

tSKEW

NotesUnitMaxMinSymbolDescription

|LVDS Single end Voltage

ID

CM

IN

CM

T

clk

A

(F

= 1/T

clk

)

clk

-mV600200|V

-V1.51.0V

-V1.80.7V

-mV250ȟV

A

80%

20%

t

RF

NotesUnitMaxMinSymbolDescription

SKEW

RF

eff

)/7|t

clk

)/7t

clk

-ps|(0.25*T

2260 ps(0.3*T

-ps·360t

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

Ver. 1.2

2. If t

isn’t enough, t

RF

should be meet the range.

eff

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# APPENDIX- VI-2

LVDS Input characteristics

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LC260WXE

Product Specification

360ps

V+
data

V­data

V+
clk

Vcm

Vcm

0.5tui

VID


360ps

tui

Vfsw

teff

tui : Unit
Interval

V­clk

Ver. 1.2

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# APPENDIX- VII

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

RCLKP

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LC260WXE

Product Specification

LVDS Data-Mapping info. (8bit)

RCLKM

RAP

RBP

RCP

RDP

R17 R16 R15 R14G12 R13R12’ R12R13’ G12”

B12 G17 G16 G15B13 G14G13’ G13G14’ B13”

V

SYNCHSYNC

B11 B10 G11 G10X R11R10’ R10R11’ X”

B17 B16DE B15B14’ B14B15’ DE”

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

RCLKP

RCLKM

RAP

R15 R14 R13 R12G10 R11R10’ R10R11’ G10”

RBP

RCP

RDP

Ver. 1.2

B10 G15 G14 G13B11 G12G11’ G11G12’ B15”

V

SYNCHSYNC

B17 B16 G17 G16X R17R16’ R16R17’ X”

B15 B14DE B13B12’ B12B13’ DE”

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p

is

}

is

pisV

}

sG

jGGGGju{

kGcdGZ

aGiGwji

aGju{OdP

jG

}

is

pisV

p

is

V

p

is

V

# APPENDIX- VIII

Voltage and Current Measure

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Product Specification

LC260WXE

1. VBLis the voltage measured on connector to ground

2. IBLis current input to connector

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# APPENDIX- IX

Black Level & Black Uniformity

This is only the reference data of black level and black uniformity for LC260WXE-SBB1 model.

1. Black Level :
Surface Luminance of Black (L

2. Black Uniformity
The variation of surface luminance of black , G

G BLACK =

Maximum(L
Minimum(L

3. Sampling Size : 5 pcs

on1,Lon2

on1,Lon2

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Product Specification

BLACK) is the luminance value at center 1-point.

BLACK is defined as :

, L

, L

, L

, L

, L

, L

, L

, L

on3

on3

, L

on4

on4

, L

on5

on5

, L

on6

on6

, L

on7

on7

, L

on8

on8

, L

on9

on9

)

)

LC260WXE

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

5. Measurement location: refer to below.

H

A

ྞ

V

B

ྟ ྠ

ྜ

ྙ

ྡ

ྛྚ

ྜྷ

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

6. Current Status

Below table is actual data of production on 11. 27, 2008 ( LGD RV Event Sample)

No.

1

2

3

4

5

Black Level

0.46

0.44

0.44

0.43

0.47

Black Uniformity

1.25

1.07

1.21

1.07

1.09

7. Black Level and Black Uniformity Control Method

-. LGD will continue to monitor the quality level of mass production regularly in terms of black level and
black uniformity.

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# APPENDIX- X

Gray to Gray Response Time Uniformity

This is only the reference data of G to G and uniformity for LC260WXE-SBB1 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 , G

G to G Uniformity =

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Product Specification

G to G is defined as :

LC260WXE

)()(

GtoGTypicalGtoGMaximum 

)(

GtoGTypical

ᆙ1

*Maximum (GtoG) means maximum value of measured time (N, M = 0 (Black) ~ 255(White), 32 gray step).

0Gray 32Gray 64Gray … 223Gray 255Gray

0Gray

32Gray

64Gray

…

223Gray

255Gray

TrD:32GÆ0G TrR:32GÆ64G … TrR:32GÆ223G TrR:32GÆ255G

TrD:64GÆ0G TrD:64GÆ32G … TrR:64GÆ223G TrR:64GÆ255G

……… … …

TrD:223GÆ0G TrD:223GÆ32G TrD:223GÆ64G … TrR:223GÆ255G

TrD:255GÆ0G TrD:255GÆ32G TrD:255GÆ64G … TrD:255GÆ223G

TrR:0GÆ32G TrR:0GÆ64G … TrR:0GÆ223G TrR:0GÆ255G

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 11. 27, 2008 ( LGD RV Event Sample)

G to G Response Time [ms]

Min. Max.

# 1 5.16 11.19 0.35

# 2 5.44 11.25 0.32

Uniformity

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ړ

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ڢڍڍڎ

ڢ ڌڔڌ

ڢڌڐڔ

ڢڔڐ

ڢڌڍڒ

ڢڑڎ

ڢڎڌ

ڢڍڐڐ

ڢڌڐڔ

ڢڑڎ

ڢڋ

< # 1 > < # 2 >

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ڢڍڐڐ ڢڍڍڎ

ڢڌڔڌ ڢڌڐڔ

ڢڌڍڒ ڢڔڐ

ڢڑڎ ڢڎڌ

ڢڋ

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# APPENDIX- XII-1

Mega DCR using condition(1)

After Inverter ON signal, PWM Duty 100% should be sustained during 2sec.

It is recommended not to sustain more than 10 min for Deep Dimming

( PWM Low Duty 0%~20%).

The deep dimming must be used very carefully due to limitation of lamp characteristics and specification.

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LC260WXE

Product Specification

1) For stable lamp on, its duty condition should follow below the condition.
After Inverter ON signal, T0 duration should be sustained.

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w~tGoGkOYWLG¥XWWLPw~tGkGXWWL

2) Low duty(0%~20%) of the inverter output current, B/L may not satisfy some of LCM specification.

- Duration : the low duty operation(0 ~ 20%) must be limited within 10 minutes for one time operation.

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- Ratio : the period of the low duty operation must be less than 1/5 compare to that of the high duty
operation(20~100%) in a certain period to prevent unwanted operation.

- FOS : partial darkness or darkness of center area during the low duty might be happened due to

insufficient lamp current.

- Warm up : the low duty must be used 3 min after the lamps “ON”. In case of low temperature, more

warm up time may be needed.

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vG

# APPENDIX- XII-2

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LC260WXE

Product Specification

Mega DCR using condition(2)

{W

Value

Parameter

3) The output current duty may not be same as input PWM duty due to rise/fall time of output.

4) Following the recommended conditions as aforementioned, there is no difference of lamp

lifetime between conventional method and new one.

{Y {Z{X {Y

NoteUnit

MaxTypMin

PWM High Duty[20~100%]min--3T1

PWM Low Duty[0~20%]min10--T2

PWM High Duty[20~100%]min--T2 x 5T3

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# APPENDIX- XIII

 Starting (Striking) Voltage measurement method.

Measure the high voltage point of Balance Ass’y after removing all lamp.

EEFL Structure

V

)(

s

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Product Specification

Lamp open

LC260WXE

)(

V

s

IO

Vpk-pk

Vs = (Vpk-pk) / [ 2*root(2)]

IO

C ballaster

୔Equipment

1.TDS7254B(Tek.)

2.P6015(Tek.)

Tk

Figure 2 . EEFL Vopen

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# APPENDIX- XV

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LC260WXE

Product Specification

Lamp Specification.

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