LG Display LC370WXE-SBV1 Specification

()Preliminary Specification
(●) Final Specification

Title 37.0” WXGA TFT LCD

LC370WXE

Product Specification

SPECIFICATION

FOR

APPROVAL

BUYER HAIER
MODEL

APPROVED BY

/

/

/

SIGNATURE

DATE

SUPPLIER LG Display Co., Ltd.

*MODEL LC370WXE

SUFFIX SBV1 (RoHS Verified)

*When you obtain standard approval,

please use the above model name without suffix

APPROVED BY

H.S. Song /Team Leader

REVIEWED BY

J.Y. Lee / Project Leader

PREPARED BY

Y.S. Yang / Engineer

SIGNATURE

DATE

Please return 1 copy for your confirmation with

your signature and comments.

Ver. 0.1

TV Product Development Dept.

LG Display Co., Ltd.

1/41

Product Specification

CONTENTS

LC370WXE

Number

1
2
3

3-1
3-2
3-3

3-4
3-5

3-6
4
5

ITEM

COVER 1
CONTENTS
RECORD OF REVISIONS
GENERAL DESCRIPTION

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
INTERFACE CONNECTIONS
SIGNAL TIMING SPECIFICATIONS

SIGNAL TIMING WAVEFORMS
COLOR DATA REFERENCE

POWER SEQUENCE
OPTICAL SPECIFICATIONS
MECHANICAL CHARACTERISTICS

Page

2
3

4
5
6

6
10
12

13
14
15
16
20

6
7

7-1
7-2

8

8-1

8-2

9

9-1
9-2
9-3
9-4
9-5
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM

Ver. 0.1

RELIABILITY
INTERNATIONAL STANDARDS
SAFETY
EMC
PACKING
INFORMATION OF LCM LABEL
PACKING FORM

PRECAUTIONS
MOUNTING PRECAUTIONS
OPERATING PRECAUTIONS
ELECTROSTATIC DISCHARGE CONTROL
PRECAUTIONS FOR STRONG LIGHT EXPOSURE
STORAGE

23
24
24
24
25
25
25

26
26
26
27
27
27
27

2 /41

Product Specification

RECORD OF REVISIONS

Revision No. Revision Date Page Description

0.1 May, 14, 2009 - Preliminary Specification (First Draft)

0.2 Jun, 29, 2009 4 Power consumption(85mA Î 89mA)
Surface Treatment (Haze 10% Æ Haze 13%)

6 Power input Current
7 Update Electrical characteristics of Back Light Assembly & Lamp

12 Update Signal Timing Specifications

21,22 Update Mechanical Drawing.

24 Update International Standards.
40 Update Lamp Electrical Spec.

03. Aug.10.2009 22 Extend the length of high voltage cable wires.

04. Sep. 15.2009 40 Revise striking voltage.

1.0 Dec. 15. 2009 7,40 Revise striking voltage. Revise lamp operating current.

LC370WXE

Ver. 0.1

3 /41

LC370WXE

Product Specification

1. General Description

The LC370WXE is a Color Active Matrix Liquid Crys tal D isp lay w i th an integ ral Externa l Ele ctrode Fl uorescen t
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 37.02 inch d iagonally
measured active display area with WXGA resolution (768 vertical by 1366 horizontal pixel ar
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 8-bit gray scale signal for each dot.
Therefore, it can present 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.

ray).

SDA

Mini-LVDS(RGB)

G1

Gate Driver Circuit

Source Driver Circuit

S1 S1366

TFT - LCD Panel

+12.0V

LVDS

5pair

Select #9

CN1

(30pin)

EEPROM

SCL

Timing Controller

[LVDS Rx]

(1366 × RGB × 768 pixels)

Power Circuit

G768

Block

High Input

High Input

CN2, 3pin, 14 Lamps/@89 mA

CN3, 3pin, 14 Lamps/@89mA

General Features

Active Screen Size 37.02 inches(940.3mm) diagonal
Outline Dimension 877.0mm(H) x 516.8mm(V) x 46.9mm(D) (Typ.)
Pixel Pitch 0.200mm x 0.600mm x RGB
Pixel Format 1366 horiz. by 768 vert. pixels RGB stripe arrangement
Color Depth 8-bit, 16.7 M colors
Luminance, White 380 cd/m2 (Center 1 point Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178(Typ.), U/D 178(Typ.))

Back light Assembly

Power Consumption Total 88.2 Watt (Typ.) (Logic= 3.2 W, Inverter= 85W @ with inverter )
Weight 6,950(Typ.)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 13%)

Ver. 0.1

4/41

LC370WXE

Product Specification

2. Absolute Maximum Ratings

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

Table 1. ABSOLUTE MAXIMUM RATINGS

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] at 25 ± 2 °C

Operating
Voltage (one

VOP 700 1100 V[ RMS] at 25 ± 2 °C

side)

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%

Note 1

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

40%

10%

Storage

Operation

Humidity [(%)RH]

5/41

LC370WXE

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

Value

Parameter Symbol

Min Typ Max

Circuit :

Power Input Voltage VLCD 10.8 12.0 13.2 VDC

Unit Note

Power Input Current ILCD

-

­Power Consumption PLCD ­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

260 338
350 455

3.2 4.2

=12.0V, 25 ± 2°C, fV=60Hz

LCD

is the frame frequency.

V

mA 1
mA 2

Watt 1

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

Ver. 0.1

Mosaic Pattern(8 x 6)

6 /41

Product Specification

Table 3. ELECTRICAL CHARACTERISTICS of Back Light Assembly & Lamp (Continue)

LC370WXE

Parameter Symbol

Values

Unit Notes

Min Typ Max

Backlight Assembly :

Operating Voltage

(one side,fBL=63KHz, I

Operating Current (one side) IBL -89-mA

Established Starting
Voltage (one side)

Operating Frequency fBL 61 63 65 kHz 4
Striking Time S TIME 1.5 - - sec 3
Power Consumption PBL 85 Watt 6

Burst Dimming Duty
Burst Dimming Frequency 1/T 95 - 182 Hz 9

BL= 89mArms))

0℃ - - 1190
25℃ - - 1095

Parameter Symbol

VBL - 980 - V

VS

{ a/T } * 100

20 100 % 9

Values

RMS

RMS

V

RMS

Unit Notes

Min Typ Max

Lamp : APPENDIX-XI

Lamp Voltage (one side) VLAMP 890 1125 1315 V
Lamp Current (one side) ILAMP 3.0 6.3 8.0 mA
Discharge Stabilization Time TS --3Min 5
Lamp Frequency f LAMP 40 63 80 KHz
Lamp Temperature TLAMP 70 °C

Established Starting
Voltage (one side)

Life Time 50,000 Hrs 7

0℃ VS 1190
25℃ VS 1095

RMS

RMS

V

RMS

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 lif e 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 wir
and conductive tape.

1. Specified values are defined for a Backlight Assembly.( IBL : 14 lamp, 6.35mA/Lamp)

2. Operating voltage is measured at 25 ± 2°C(after 2hr.aging). The variance range for operating voltage is

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 ma
not be turned on. The used lamp current is typical value.

Ver. 0.1

1, 2

1

1, 3

2

3

e

± 10%.

y

7 /41

LC370WXE

Product Specification

Vpk-pk

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.
There is no reliability problem of lamp, If use out of range of operation frequency ( 61KHz~65KHz) on CAS

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 ± 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 ± 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.

Ver. 0.1

I p

I -p

* Asymmetry rate:

| I

–I –p| / Iopx 100%

p

* Distortion rate

I

(or I –p) / I

p

op

8 /408 /41

Product Specification

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)

T

A

PWM

Output of Inverter to Lamp

90%

LC370WXE

+3.3V TTL

I-out

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 ).

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

Point A

a

Point B

12. The operating current unbalance between left and right must be under 10% of Typical current
│Left(Master) current – Right(Slave) Curr e nt │〈 10% of typical current

Ver. 0.1

9 /409 /41

LC370WXE

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

3-pin Balance PCB connector is used for the integral backlight system.

3-2-1. LCD Module

- LCD Connector(CN5) : FI-X30SSL-HF (Manufactured by JAE) or IS100-L30B-C23(Manufactured by UJU)

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

Table 4. MODULE CONNECTOR(CN5) PIN CONFIGURATION

Pin No. Symbol Description Note

Power Supply +12.0V
Power Supply +12.0V
Power Supply +12.0V
Power Supply +12.0V

Appendix VII

No Connection

No Connection
No Connection

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

28
29

30

1
2
3
4
5
6
7
8
9

VLCD
VLCD
VLCD
VLCD

GND Ground
GND Ground
GND Ground
GND Ground

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

NC

GND Ground

RA- LVDS Receiver Signal(-)

RA+ LVDS Receiver Signal(+)

GND Ground

RB- LVDS Receiver Signal(-)

RB+ LVDS Receiver Signal(+)

GND Ground

RC- LVDS Receiver Signal(-)

RC+ LVDS Receiver Signal(+)

GND Ground

RCLK- LVDS Receiver Clock Signal(-)

RCLK+ LVDS Receiver Clock Signal(+)

GND Ground

RD- LVDS Receiver Signal(-)

RD+ LVDS Receiver Signal(+)

GND Ground

NC

NC
GND Ground
GND Ground

Notes :

Ver. 0.1

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 VI)

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).

10 /41

3-2-2. Backlight Inverter

LC370WXE

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

1

23

Master

Slave

Ver. 0.1

11 /41

LC370WXE

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. 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 50 -

VT

tHP- tHV 162 tHP- tHV

776

(894)

790

(948)

1063

(1008)

KHz

t

HP

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 34 80 -
Horizontal Front Porch t

Period t

Vertical Valid tVV 768 768 768 tHP
Vertical Blank - tVP- tVV 22 tVP- tVV tHP

Vsync

Frequency fV

Width t

WV -

(47)

Vertical Back Porch tVBP 5

Vertical Front Porch t

VFP 1

57

60

(50)

5

(12)

15

(128)

2

(40)

63

(53)

-t

Hz

HP

-Hz

-tHP

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.

Ver. 0.1

12 /41

3-4. Signal Timing Waveforms

LC370WXE

Product Specification

DCLK

First data

tCLK

DE(Data Enable)

0.5 VDD

Invalid data

DE, Data

0.7VDD

0.3VDD

Valid data

Invalid data

tHV

tHT

DE(Data Enable)

Ver. 0.1

1 768

tVV

tVT

13 /41