LG Display LC185EXN-SDA1 Specification

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LC185EXN

Product Specification

SPECIFICATION

FOR

APPROVAL

() Preliminary Specification

()Final Specification

Title 18.5” WXGA TFT LCD

BUYER General

MODEL

APPROVED BY

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC185EXN

SUFFIX SDA1

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

H. S. SONG /Team Leader

REVIEWED BY

H. S. CHOI / Project Leader

SIGNATURE

DATE

PREPARED BY

/

Please return 1 copy for your confirmation with

your signature and comments.

Ver 0.1

J. S. BAE / Engineer

TV Product Development Dept.

LG Display Co., Ltd.

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LC185EXN

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

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8

10

11

14

15

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21

6 RELIABILITY

7 INTERNATIONAL STANDARDS

7-1 SAFETY

7-2 EMC

7-3 Environment

8 PACKING

8-1 INFORMATION OF LCM LABEL

8-2 PACKING FORM

9 PRECAUTIONS

9-1 MOUNTING PRECAUTIONS

9-2 OPERATING PRECAUTIONS

9-3 ELECTROSTATIC DISCHARGE CONTROL

9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE

9-5 STORAGE

9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

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Revision No. Revision Date Page Description

0.1 Aug. 19, 2010 - Preliminary Specification (First Draft)

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LC185EXN

Product Specification

RECORD OF REVISIONS

Ver 0.1

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Product Specification

1. General Description

The LC185EXN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
backlight system. The matrix employs a-Si Thin Film Transistor as the active element.
It is a transmissive 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(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.

LC185EXN

Mini-LVDS(RGB)

Control
Signals

Gate Driver Circuit

Source Driver Circuit

S1 S1366

G1

TFT - LCD Panel

(1366 Ý RGB Ý 768 pixels)

G768

LVDS

1Port

LVDS
Select

#21

+5.0V

CN1

(30pin)

EEPROM

SCL

SDA

Timing Controller

[LVDS Rx]

Power Circuit

Block

+24.0V, GND, V

Ext VBR-B

on/off

LED Driver

CN401(14Pin)

CN402(6Pin)

Back light Assembly(44 LED)

General Features

Active Screen Size 18.5 inches(470.1mm) diagonal

Outline Dimension 430.4(H) Ý 254.6(V) Ý 12.4(D) (Typ.)

Pixel Pitch 0.100mm x 0.300mm

Pixel Format 1366 horiz. by 768 vert. Pixels, RGB stripe arrangement

Color Depth 8-bit(D), 16.7M colors

Luminance, White 250 cd/m2(Center 1point) (Typ.)

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

Power Consumption

Weight 1,040g (Typ.)

Display Mode Transmissive mode, Normally black

Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 13%)

Ver 0.1

Total 18.1W (TBD) (Typ.)
(Logic=2.9W, LED Driver=15.2W(TBD) EXTV

BR-B=100% )

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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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LC185EXN

Product Specification

Parameter Symbol

Power Input Voltage

Driver Control Voltage

T-Con Option Selection Voltage VLOGIC

Operating Temperature TOP

Storage Temperature TST

Panel Front Temperature TSUR - +68 ¶C 4

Operating Ambient Humidity HOP

Storage Humidity HST 10 90 %RH

Note

1. Ambient temperature condition (Ta = 25 r 2 ¶C )

LCD Circuit VLCD

Driver VBL -0.3 + 27.0 VDC

ON/OFF VOFF / VON

Brightness VBR

Value

Min Max

-0.3 +6.0

-0.3 +5.5

0.0 +5.5

-0.3 +4.0

0 +50

-20 +60

10 90

Unit Note

VDC

VDC

VDC

VDC

¶C

¶C

%RH

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.

1

2,3

2,3

Ver 0.1

Wet Bulb
Temperature [

10

0

10 20 30 40 50 60 70 800-20

Dry Bulb Temperature [

¶C]

20

30

40

¶C]

50

60

90%

60%

40%

10%

Storage

Operation

Humidity [(%)RH]

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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 LED
backlight and LED Driver circuit.

Table 2. ELECTRICAL CHARACTERISTICS

Parameter Symbol

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LC185EXN

Product Specification

Value

Unit Note

Min Typ Max

Circuit :

Power Input Voltage VLCD 4.5 5.0 5.5 VDC

Power Input Current ILCD

Power Consumption PLCD - 2.9 3.77 Watt 1

Rush current IRUSH - - 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

- 580 754 mA 1

- 690 897 mA 2

=5.0V, 25 r 2¶C, fV=60Hz

LCD

is the frame frequency.

V

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 : 255Gray
Black : 0Gray

Mosaic Pattern(8 x 6)

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Table 3. ELECTRICAL CHARACTERISTICS (Continue)

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LC185EXN

Product Specification

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 - - 1.5 A

Power Consumption PBL -

On/Off

Input Voltage for

Control System

Signals

LED :

Life Time 30.000 Hrs 3

Brightness Adjust ExtV

PWM Frequency for
NTSC & PAL

Pulse Duty Level
(PWM)

On V on 2.5 - 5.0 Vdc

Off V off -0.3 0.0 0.7 Vdc

BR-B 1 - 100 % On Duty

PAL 100 Hz 4

NTSC 120 Hz 4

High Level 2.5 - 5.0

Low Level 0.0 - 0.7

Min Typ Max

Values

-

0.63

15.2 16.8

0.7

Unit Notes

A1

V

BL = 22.8V

Ext V

BR-B = 100%

W1

Vdc

Vdc

HIGH : on duty

LOW : off duty

Notes :

1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 60

minutes at 25·2¶C. The specified current and power consumption are under the typical supply Input voltage
24Vand V

BR (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 life time 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.

4. LGD recommend that the PWM freq. is synchronized with two time harmonic of Vsync signal of system.
Though PWM frequency is over 120Hz (max 252Hz), function of LED Driver is not affected.

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

2

6. Even though inrush current is over the specified value, there is no problem if I

T spec of fuse is satisfied.

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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 14-pin connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN5) : KDF71G-30S-1H(Hirose) or Equivalent.

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

Table 4. MODULE CONNECTOR(CN5) PIN CONFIGURATION

Pin No. Symbol Description Note

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
27
28
29
30

GND Ground

Reserved “H” : Interlace Free Mode, “L or NC ” : Normal Operation

NC No Connection
GND Ground
RX0- LVDS Receiver Signal(-)

RX0+ LVDS Receiver Signal(+)

GND Ground
RX1- LVDS Receiver Signal(-)

RX1+ LVDS Receiver Signal(+)

GND Ground
RX2- LVDS Receiver Signal(-)

RX2+ LVDS Receiver Signal(+)

GND Ground

RXCLK- LVDS Receiver Clock Signal(-)

RXCLK+ LVDS Receiver Clock Signal(+)

GND Ground
RX3- LVDS Receiver Signal(-)

RX3+ LVDS Receiver Signal(+)

GND Ground

NC No Connection

LVDS Select “H” : JEIDA, “L or NC” : VESA

NC No Connection
GND Ground
GND Ground
GND Ground

VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V
VLCD Power Supply +5.0V

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LC185EXN

Product Specification

5
4

Appendix V

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.

4. Specific pins (Pin No. #2) are used for Option of the LCD module.

If not used, these pins are no connection.

5. 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 Inverter

- LED Connector : SM14B-SRSS-TB (Manufactured by JST)

- Mating Connector : SHR-14V-S-B (With protrusions) or SHR-14V-S
(Without protrusions) ; (Manufactured by JST)

Table 5. INVERTER CONNECTOR PIN CONFIGULATION

Pin No Symbol Description Note

1 VBL Power Supply +24.0V

2 VBL Power Supply +24.0V

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LC185EXN

Product Specification

3 VBL Power Supply +24.0V

4 VBL Power Supply +24.0V

5 VBL Power Supply +24.0V

6

7

8

9

10

11

12

13 NC No Connection

14 EXTVBR-B External PWM 3

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

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

3. High : on duty / Low : off duty

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

GND

GND

GND

GND

GND

Status

VON/OFF

Backlight Ground

Backlight Ground

Backlight Ground

Backlight Ground

Backlight Ground

LED Status 2

Backlight ON/OFF control

1

Rear view of LCM

Rear view of LCM

PCB

PCB

14

Ver 0.1

14

…

…

1

1

…

…

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3-3. Signal Timing Specifications

Table 6 shows the signal timing required at the input of the LVDS transmitter. All of the interface signal
timings should be satisfied with the following specification for normal operation.

Table 6. TIMING TABLE (DE Only Mode)

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LC185EXN

Product Specification

Horizontal

Vertical

Frequency

Display Period

Blank

Total

Display Period

Blank

Total

DCLK

Horizontal

Vertical

Symbol

t

HV

t

HB

t

HP

VV

t

VB

t

VP

CLK

H

f

V

20

(126)

786

(894)

57

(47)

22

(180)

790

(948)

60

(50)

240

(295)

1008

(1063)

63

(53)

NoteUnitMaxTypMinITEM

tclk-1366-

tclk41016290

tclk177615281456

tHP-768-t

tHP

tHP

NoteUnitMaxTypMinSymbolITEM

MHz80.072.463.0f

2KHz5547.445f

2

NTSC :

Hz

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

3-4-1. LVDS Input Signal Timing Diagram

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LC185EXN

Product Specification

DCLK

1366

tCLK

DE(Data Enable)

0.5 Vcc

Invalid data

DE, Data

tHT

Valid data

1

0.7VDD

tHV

0.3VDD

1366

Invalid data

DE(Data Enable)

Ver 0.1

768

1 768

tVV

tVT

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