LG Display LC320EXN-SEA3 Specification

LC320EXN

Product Specification

SPECIFICATION

FOR

APPROVAL

Preliminary Specification

)

(

●

)

(

Final Specification

Title 32.0” WXGA TFT LCD

BUYER LGE

MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC320EXN

SUFFIX SEA3(RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

J.T.Kim / Team Leader

REVIEWED BY

D.K.Lim / Project Leader

PREPARED BY

J.Y.Lee / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 1.0

TV Product Development Dept.

LG Display Co., Ltd

1 / 36

Product Specification

CONTENTS

LC320EXN

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 SPECIFICATIONS

3-5 COLOR DATA REFERENCE

3-6 POWER SEQUENCE

4 OPTICAL SPECIFICATIONS

5 MECHANICAL CHARACTERISTICS

Page

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10

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14

15

17

21

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC

7-3 ENVIRONMENT

8 PACKING

8-1 DESIGNATION OF LOT MARK

8-2 PACKING FORM

9 PRECAUTIONS

9-1 MOUNTING PRECAUTIONS

9-2 OPERATING PRECAUTIONS

9-3 ELECTROSTATIC DISCHARGE CONTROL

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE

9-5 STORAGE

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

Ver. 1.0

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2 / 36

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

Preliminary Specification (First Draft) -17thJan. 20120.1

LC320EXN

Ver. 1.0

3 / 36

LC320EXN

Product Specification

1. General Description

The LC320EXN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
ba ck li g ht s y s tem . Th e ma tr i x em p l o y s a- Si T h i n Fi lm T r an s i s t o r a s th e a c t i v e e l em en t.
It is a transmissive display type which is operating in the normally black mode. It has a 31.51 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(6bit + A-FRC) 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.

Control
Signals

RGB

Source Driver Circuit

S1 S1366

G1

TFT - LCD Panel

(1366 × 768 x RGB pixels)

LVDS Select

LVDS 1Port

+12.0V

#9

CN1

(30pin)

EEPROM

SCL

SDA

Timing Controller

[LVDS Rx]

[Gate In Panel]

G768

Back light Assembly

+24.0V, GND, On/off

Ext VBR-B

Power Circuit

Block

LED Driver

Power Signals

General Features

Active Screen Size 31.51 inches(800.4mm) diagonal

Outline Dimension 735.4 mm(H) x 433.0 mm(V) x 10.8 mm(D) (Typ.)

Pixel Pitch 170.25㎛ x 510.75㎛ x RGB

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

Color Depth 8bit(D), 16,7 M colors

Luminance, White 350 cd/m2 (Center 1 point) (Typ.)

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

Power Consumption

Weight 5,350g (Typ.) 5,620g (Max)

Display Operating Mode Transmissive mode, normally black

Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 1%)

Total 36.0 Watt (Logic=4.1 W , LED Driver =31.9W @
[ExtVbr_B=100%] )

Ver. 1.0

4 / 36

LC320EXN

Product Specification

2. Absolute Maximum Ratings

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

Table 1. ABSOLUTE MAXIMUM RATINGS

Parameter Symbol

Power Input Voltage

Driver Control Voltage

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

Operating Temperature TOP 0 +50 °C

Storage Temperature TST -20 +60 °C

Panel Front Temperature TSUR - +68 °C 4

Operating Ambient Humidity HOP 10 90 %RH

Storage Humidity HST 10 90 %RH

Note

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

LCD Circuit VLCD -0.3 +14.0 VDC

Driver VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON -0.3 +5.5 VDC

Brightness VBR 0.0 +5.5 VDC

Value

Unit Note

Min Max

2. Temperature and relative humidity range are shown in the figure below.

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

3. Gravity mura can be guaranteed below 40°C condition.

4. The maximum operating temperatures is based on the test condition that the surface temperature

of display area is less than or equal to 68°C with LCD module alone in a temperature controlled chamber.
Thermal management should be considered in final product design to prevent the surface temperature of
display area from being over 68℃. The range of operating temperature may be degraded in case of
improper thermal management in final product design.

1

2,3

2,3

Ver. 1.0

Wet Bulb
Temperature [°C]

20

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [°C]

30

40

50

60

90%

60%

40%

10%

Storage

Operation

Humidity [(%)RH]

5 / 36

LC320EXN

Product Specification

3. Electrical Specifications

3-1. Electrical Characteristics

It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight and LED Driver circuit.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

Value

Min Typ Max

Circuit :

Power Input Voltage V

LCD

10.8 12.0 13.2 V

- 340 445 mA 1

Power Input Current I

Power Consumption P

Rush current I

LCD

LCD

RUSH

- 430 560 mA 2

- 4.08 5.30 Watt 1

- - 3.0 A 3

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

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

2. The current is specified at maximum current pattern.

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

White : 255 Gray
Black : 0 Gray

Unit Note

DC

=12.0V, 25 ± 2°C, fV=60Hz

LCD

Ver. 1.0

Mosaic Pattern(8 x 6)

6 / 36

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

LC320EXN

Parameter Symbol

LED Driver :

Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1

Power Supply Input Current IBL_A

Power Supply Input Current (In-Rush) Irush - - 3 A

Power Consumption PBL -

On/Off

Brightness Adjust ExtVBR-B

PWM Frequency for
NTSC & PAL

Pulse Duty Level
(PWM)

LED :

Life Time 30,000 50,000 Hrs 2

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

PAL 100 Hz 3

NTSC 120 Hz 3

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

Min Typ Max

Values

-

5 - 100

1.33 1.45 A Ext VBR-B = 100%

31.9 34.8

100-1

Unit Notes

VBL = 22.8V
Ext VBR-B = 100%

W Ext VBR-B = 100%

%

Vdc

Vdc

On Duty

HIGH : on duty

LOW : off duty

4

6

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

Two time harmonic of V_sync signal of system.

Though PWM frequency is over 120Hz (max 252Hz), function of LED Driver is not affected.

4. The duration of rush current is about 200ms. This duration is applied to LED on time.

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

6. ExtV

After Driver ON signal is applied, ExtV
After that, ExtV

signal have to input available duty range and sequence.

BR-B

1% and 100% is possible

BR-B

should be sustained from 5% to 100% more than 500ms.

BR-B

For more information, please see 3-6-2. Sequence for LED Driver.

Ver. 1.0

7 / 36

LC320EXN

Product Specification

3-2. Interface Connections

This LCD module employs two kinds of interface connection, a 30-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.

3-2-1. LCD Module

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

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

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
8 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

30 GND Ground

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

NC

NC
NC
NC

No Connection

No Connection
No Connection

No Connection 4

Appendix IV

4

4
4

Notes :

Ver. 1.0

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

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

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

4. These pins are used only for LGD (Do not connect)

5. Specific pin No. #30 is used for “No signal detection” of system signal interface.

It should be GND for NSB (No Signal Black) while the system interface signal is not.

If this pin is “H”, LCD Module displays AGP (Auto Generation Pattern).

8 / 36

Product Specification

3-2-2. Backlight Module

Master

-LED Driver Connector

: 20022WR - H14B2(Yeonho)

-.Mating Connector
: 20022HS - 14B2 or Compatible

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION

Pin No Symbol Description Note

LC320EXN

1

2

3

4

5

6

7

8

9

10

11

12

13

14

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

VBL Power Supply +24.0V

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

GND Backlight Ground

Status Back Light Status 2

ON/OFF

V

NC Don’t care

EXTVBR-B External PWM

Backlight ON/OFF control

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

2. Normal : Low (under 0.7V) / Abnormal : Open

3. High : on duty / Low : off duty, Pin#14 can be opened. ( if Pin #14 is open , EXTVBR-B is 100% )

4. Each impedance of pin #12 and 14 is over 50 [KΩ] .

1

◆ Rear view of LCM

1

Ver. 1.0

…

14

<Master>

PCB

1

14

…

9 / 36

LC320EXN

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

Table 6----1. TIMING TABLE (DE Only Mode)

Table 6Table 6

1. TIMING TABLE (DE Only Mode)

1. TIMING TABLE (DE Only Mode)1. TIMING TABLE (DE Only Mode)

ITEM Symbol Min Typ Max Unit Note

Horizontal

Vertical

Frequency

Display

Period

Blank tHB 90 162 410 tclk

Total tHP 1456 1528 1776 tclk

Display

Period

Blank tVB

Total tVP

ITEM Symbol Min Typ Max Unit Note

DCLK fCLK 63.0 72.4 80.0 MHz

Horizontal fH 45 47.4 55 KHz 2

Vertical fV

tHV - 1366 - tclk

tVV - 768 - tHP

20

(126)

788

(894)

57

(47)

22

(180)

790

(948)

60

(50)

240

(295)

1008

(1063)

63

(53)

tHP 1

tHP

Hz

2

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

※ Timing should be set based on clock frequency.

Ver. 1.0

10 / 36

3-4. Signal Timing Waveforms

3-4-1. LVDS Input Signal Timing Diagram

LC320EXN

Product Specification

DCLK

1366

tCLK

0.5 Vcc

Invalid data

DE(Data Enable)

DE, Data

tHT

Valid data

1

0.7VDD

tHV

0.3VDD

1366

Invalid data

DE(Data Enable)

Ver. 1.0

768

1 768

tVV

tVT

11 / 36