LC370WX4

Product Specification

SPECIFICATION
FOR
APPROVAL

( ) Preliminary Specification
( ● ) Final Specification

Title 37.0” WXGA TFT LCD

BUYER SUPPLIER LG.Philips LCD Co., Ltd.

MODEL *MODEL LC370WX4

SUFFIX SLA1(RoHs Verified)
*When you obtain standard approval,
please use the above model name without suffix

SIGNATURE SIGNATURE
APPROVED BY APPROVED BY
DATE DATE

/ J.H. Lee / Senior Manager

REVIEWED BY

/ J.K.Park / Manager

PREPARED BY
/ S.Y. Choi / Engineer

Please return 1 copy for your confirmation with TV Product Development Dept.
your signature and comments. LG. Philips LCD Co., Ltd

Ver. 1.0 1 / 34
 LC370WX4
Product Specification

Contents
Number ITEM Page
COVER 1

CONTENTS 2
RECORD OF REVISIONS 3

1 GENERAL DESCRIPTION 4

2 ABSOLUTE MAXIMUM RATINGS 5

3 ELECTRICAL SPECIFICATIONS 6

3-1 ELECTRICAL CHARACTERISTICS 6

3-2 INTERFACE CONNECTIONS 8

3-3 SIGNAL TIMING SPECIFICATIONS 10

3-4 SIGNAL TIMING WAVEFORMS 11

3-5 COLOR INPUT DATA REFERENCE 12

3-6 POWER SEQUENCE 13

4 OPTICAL SPECIFICATIONS 15

5 MECHANICAL CHARACTERISTICS 19

6 RELIABILITY 22

7 INTERNATIONAL STANDARDS 23

7-1 SAFETY 23

7-2 EMC 23

8 PACKING 24

8-1 DESIGNATION OF LOT MARK 24

8-2 PACKING FORM 24

9 PRECAUTIONS 25
9-1 MOUNTING PRECAUTIONS 25
9-2 OPERATING PRECAUTIONS 25
9-3 ELECTROSTATIC DISCHARGE CONTROL 26
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 26
9-5 STORAGE 26
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 26

Ver. 1.0 2 / 34
 LC370WX4
Product Specification

Record of Revisions
Revision No. Revision Date Page Description
0.0 Mar. 05, 2007 - Preliminary Specification(First Draft)

1.0 May. 23, 2007 - Final Specification

Ver. 1.0 3 / 34
 LC370WX4
Product Specification

1. General Description
LC370WX1 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 type display operating in the normally black mode. It has a 37.02 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 vertical 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.

CN3
LUT Data LUT Data
G1
+12.0V
DCR LUT, ODC LUT
Gate Driver Circuit

LVDS
5pair

Select #9 CN1 LVDS Rx (Receiver) TFT - LCD Panel

(30pin)
(1366 × RGB × 768 pixels)
DCR_Enable#10 DCR Controller
VBR_EXT #28 ODC Controller
G768
VBR_OUT #27 Timing Controller

Sync. S1 S1366
Power Circuit PWM RGB
+24.0V Block Source Driver Circuit
VBR-A, VBR-B
On/off
CN2, Inverter (14Pin, High) Back light Assembly (16EEFL)

General Features
Active Screen Size 37.02 inches(940.3mm) diagonal
Outline Dimension 877.0mm(H) x 516.8mm(V) x 55.5mm(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 500 cd/m2 (Center 1 point Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178(Typ.), U/D 178(Typ.))
Power Consumption Total 124.8 Watt (Typ.) (Logic= 4.8 W, B/L= 120 W [VBR-A=1.65V] )
Weight 9000 (Typ.)
Display Operating Mode Transmissive mode, normally black
Surface Treatment Hard coating(3H), Anti-glare treatment of the front polarizer (Haze 13%)

Ver. 1.0 4 / 34
 LC370WX4
Product Specification

2. Absolute Maximum Ratings

The followings are maximum values which, if exceeded, may cause faulty operation or damage to the unit.

Table 1. ABSOLUTE MAXIMUM RATINGS

Value
Parameter Symbol Unit Remark
Min Max

Power Input LCM VLCD +8.0 +14.0 VDC at 25 ± 2 °C

Voltage Backlight inverter VBL +21.6 +27.0 VDC
ON/OFF Control Voltage VON/OFF -0.3 +5.5 VDC
Brightness Control Voltage VBR 0 +5.0 VDC
Operating Temperature TOP 0 +50 ℃
Storage Temperature TST -20 +60 ℃
Note 1,2
Operating Ambient Humidity HOP 10 90 %RH
Storage Humidity HST 10 90 %RH

Note : 1. Temperature and relative humidity range are shown in the figure below.
Wet bulb temperature should be 39 °C Max. and no condensation of water.
2. Gravity mura can be guaranteed under 40℃ condition.

90%

60
60%

50 Storage
Humidity [(%)RH]

Wet Bulb
Temperature [°C]
40
40%
Operation
30

20
10
0
10%

-20 0 10 20 30 40 50 60 70 80

Dry Bulb Temperature [°C]

Ver. 1.0 5 / 34
 LC370WX4
Product Specification

3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power the LCD electronics and to drive the TFT array and
liquid crystal. The other input power for the EEFL/Backlight is to power inverter.

Table 2. ELECTRICAL CHARACTERISTICS

Value
Parameter Symbol Unit Note
Min Typ Max

MODULE :

Power Input Voltage VLCD 11.4 12.0 12.6 VDC

- 400 500 mA 1
Power Input Current ILCD
- 535 785 mA 2
Power Consumption PLCD - 4.4 5.2 Watt 1

Rush current IRUSH - - 3.5 A 3

Note :
1. The specified current and power consumption are under the VLCD=12.0V, 25 ± 2°C, fV=60Hz condition
whereas mosaic pattern(8 x 6) is displayed and fV is 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 1ms(min.).

White : 255Gray
Black : 0Gray

Mosaic Pattern(8 x 6)

Ver. 1.0 6 / 34
 LC370WX4
Product Specification

Table 3. ELECTRICAL CHARACTERISTICS (Continue)

Values
Parameter Symbol Unit Notes
Min Typ Max
Inverter :
Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1
Power Supply Input Voltage Ripple - - 0.5 Vp-p 1
- 5 5.3 A VBR-A = 1.65V … 1
After Aging IBL_A
Power Supply - 5.5 5.8 A VBR-A = 3.3V … 1
Input Current - 5.5 5.8 A VBR-A = 1.65V … 2
Before Aging IBL_B
- 6 6.3 A VBR-A = 3.3V … 2
VBL = 22.8V
Power Supply Input Current (In-Rush) Irush - - 8 A VBR-B = 3.3V
VBR-A = 1.65V
Power Consumption PBL - W VBR-A = 1.65V … 1
Brightness Adjust VBR-A 0.0 1.65 3.3 Vdc
Input Voltage for On V on 2.5 - 5.0 Vdc
Control System On/Off
Signals Off V off -0.3 0.0 0.8 Vdc
Brightness Adjust VBR-B 0 - 3.3 V 3
Lamp:
Discharge Stabilization Time Ts 3 min 4
Life Time 50,000 Hrs 5

Notes :
1. Electrical characteristics are determined after the unit has been ‘ON’ and stable for approximately 120
minutes at 25±2°C. The specified current and power consumption are under the typical supply Input voltage
24Vand VBR (VBR-A : 1.65V & VBR-B :3.3V), it is total power consumption.
The ripple voltage of the power supply input voltage is under 0.5 Vp-p. LPL recommend Input Voltage is
24.0V ± 5%.
2. Electrical characteristics are determined within 30 minutes at 25±2°C.
The specified currents are under the typical supply Input voltage 24V.
3. Brightness Control.
This VBR-B Voltage control brightness.

VBR-B Voltage Function VBR-B Voltage Function

0V Minimum Duty (20%) 3.3V Maximum Duty (100%)
.
4. 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.
5. 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 (VBR-A : 1.65V & VBR-B :3.3V), on condition of continuous operating at 25 ± 2°C
6. The duration of rush current is about 10ms.

Ver. 1.0 7 / 34
 LC370WX4
Product Specification
3-2. Interface Connections
This LCD employs two kinds of interface connection, a 30-pin connector is used for the module electronics,
14 Connectors are used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1) : FI-X30SSL-HF (Manufactured by JAE) or Equivalent
- 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
8 GND Ground
9 Select Select LVDS Data format 1
10 DCR Enable Dynamic CR Enable ( ‘L’ = Disable , ‘H’ = Enable ) 2
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 VBR_OUT VBR output form LCD module
28 VBR_EXT External VBR input from System to LCD module
29 GND Ground
30 GND Ground 3

Note: 1. If the pin no. 9 is Ground, Interface format is “LG”, and if the pin no. 9 is Vcc(3.3V), Interface format
is “DISM”. See page 9 and 10.
2. When this pin is no connection or Ground, DCR is Disabled.
3. The pin no. 30 is necessary for LCD test.
When LVDS signals are abnormal operation more than 3-Vsync times and power 12V is supplied,
‘Open’ or ‘Vcc’ : LCD operate itself some test patterns.(AGP – Auto Generation Pattern)
‘Ground’ : LCD operate itself a black pattern. (NSB – No Signal Black)
LPL recommend ‘Ground’ for NSB.
4. All GND (ground) pins should be connected together, which should be also connected to the LCD
module’s metal frame.
5. All VLCD (power input) pins should be connected together.
6. Input Levels of LVDS signals are based on the IEA 664 Standard.

Ver. 1.0 8 / 34
 LC370WX4
Product Specification

3-2-2. Backlight Inverter

Inverter Connector : S14B-PH-SMC

(manufactured by YeonHo) or Equivalent
- Mating Connector : PHR-14 or Equivalent

Table 5. INVERTER CONNECTOR PIN CONFIGULATION

Pin No Symbol Description Inv. Note
1 VBL Power Supply +24.0V VBL

2 VBL Power Supply +24.0V VBL

3 VBL Power Supply +24.0V VBL

4 VBL Power Supply +24.0V VBL

5 VBL Power Supply +24.0V VBL

6 GND Backlight Ground GND

7 GND Backlight Ground GND
8 GND Backlight Ground GND 1
9 GND Backlight Ground GND

10 GND Backlight Ground GND

Analog dimming voltage
11 VBR-A
DC 0.0V ~ 3.3V (Typ : 1.65V)
VBR-A 2, 3

12 VON/OFF 0.0V ~ 5.0V On/Off

Burst dimming voltage
13 VBR-B VBR-B 3
DC 0.0V ~ 3.3V
Normal : Upper 3.0V
14 Status Status 4
Abnormal : Under 0.7V

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

2. If Pin #11 is open, VBR-A = 1.65V. When apply over 1.65V( ~ 3.3V) continuously,
its luminance is increasing however lamp’s life time is decreasing.
It could be usable for boost up luminance when using DCR (=Dynamic contrast ratio) function only.
3. Minimum Brightness : VBR-B =0V Maximum Brightness : VBR-B = 3.3V
4. Even though Pin #14 is open, there is no effect on inverter operating, The output terminal of inverter.
5. Each impedance of pin #11,12 and 13 is 200[KΩ], 100[KΩ] , 100[KΩ]

◆ Rear view of LCM

PCB

14
…
…

Ver. 1.0 9 / 34
 LC370WX4
Product Specification

3-3. Signal Timing Specifications

Table 6 and Table 7 show 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

Item Symbol Min. Typ. Max. Unit Notes

DCLK Period tCLK 12.5 13.8 15.8 nsec

DCLK Frequency fCLK 63.0 72.4 80.0 MHz
Frequency fV 57 60 63 Hz
Valid tVV - 768 - Line
Vertical
Blank tVT - tVV 8 22 295 Line
Total tVT 776 790 1063 Line
Frequency fH 45 47.4 50 KHz
Valid tHV - 1366 - tCLK
Horizontal
Blank tHT - tHV 90 162 410 tCLK
Total tHT 1456 1528 1776 tCLK

Table 7. TIMING TABLE for PAL

Item Symbol Min. Typ. Max. Unit Notes

DCLK Period tCLK 12.5 13.8 15.8 nsec

DCLK Frequency fCLK 63.0 72.4 80.0 MHz
Frequency fV 47 50 53 Hz
Valid tVV - 768 - Line
Vertical
Blank tVT - tVV 8 180 295 Line
Total tVT 776 948 1063 Line
Frequency fH 45 47.4 50 KHz
Valid tHV - 1366 - tCLK
Horizontal
Blank tHT - tHV 90 162 410 tCLK
Total tHT 1456 1528 1776 tCLK

Note :
1. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate.
2. Above Timing Tables are only valid for DE Mode.

Ver. 1.0 10 / 34
 LC370WX4
Product Specification

3-4. Signal Timing Waveforms

0.7VDD
DE, Data
0.3VDD

tCLK
DCLK 0.5 VDD

Valid data

Data Invalid data Invalid data

DE(Data Enable)

* tHB = tHFP + tWH +tHBP

* Reference : Sync. Relation
* tVB = tVFP + tWV +tVBP
tHP
HSync tWH

tHBP tHV tHFP

DE(Data Enable)

tVP
tWV

VSync
tVBP tVV tVFP

DE(Data Enable)

Ver. 1.0 11 / 34
 LC370WX4
Product Specification

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 the binary input, the brighter the color. The table below provides a reference for color versus data
input.
Table 8. COLOR DATA REFERENCE

Input Color Data

RED GREEN BLUE

Color
MSB LSB MSB LSB MSB LSB

R7 R6 R5 R4 R3 R2 R1 R0 G 7 G6 G5 G4 G3 G2 G1 G0 B7 B6 B5 B4 B3 B2 B1 B0

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

Basic 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

Color 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 ... ... ... ...

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

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

Ver. 1.0 12 / 34
 LC370WX4
Product Specification

3-6. Power Sequence

3-6-1. LCD Driving circuit

90% 90%
Power Supply For LCD
VLCD 10% 10%
0V

T1 T2 T5 T6

Valid Data
Interface Signal (Tx)

T3 T4

T7 T8
Option Signal
(LVDS_select, DCR_Enable, BIT_select)

Lamp ON
Power for Lamp

Table 9. POWER SEQUENCE

Value
Parameter Unit Notes
Min Typ Max
T1 0.5 - 20 ms
T2 0.5 - 3 x (1/fV) ms 3,5
T3 200 - - ms 4
T4 200 - - ms 4
T5 0 - - ms 3,5
T6 2.0 - - s 2,6
T7 0 - T2 ms 5
T8 0 - - ms 5

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 VLCD to 0V.
3. The case when the T2/T5 exceed 3x(1/fv), it operates protection pattern (Black pattern) till valid
signal inputted. There is no reliability problem. (ex. 60Hz : 3x(1/60Hz) = 50ms)
4. 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.
5. If the on time of signals(Interface signal and Option signals) precedes the on time of Power(VLCD),
check the LCD logic Power(Vcc) is under 0.8V, otherwise it will be happened abnormal display.
6. T6 should be measured after the Module has been fully discharged between power off and on
period.

Ver. 1.0 13 / 34
 LC370WX4
Product Specification

3-6-2. Sequence for Inverter

Power Supply For Inverter

24V (typ.)
90%
VBL
10% 0.7V
0V

T1 T2 1000ms (Min) T5 T3 T2 1000ms (Min)

VON/OFF

T4 T4

VBR-A & Lamp ON

VBR-B
T7

3-6-3. Deep condition for Inverter

T6
VBL : 24V

VBL(Typ.) x 0.8

0V
Table 10. Power Sequence for Inverter
Values
Parameter Units Remarks
Min Typ Max
T1 20 - - ms 1
T2 500 - - ms
T3 200 - - ms
T4 0 - ms 2
T5 10 - - ms
T6 - - 10 ms VBL(Typ) x 0.8
T7 1000 - - ms 3
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. In T7 section, VBR-B is recommended 3.3V.

Ver. 1.0 14 / 34
 LC370WX4
Product Specification

4. Optical Specification
Optical characteristics are determined after the unit has been ‘ON’ for 30min in a dark environment at 25±2°C.
The values specified are 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.
LCD Module Pritchard 880 or
Optical Stage(x,y)
equivalent

50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method

Table 11. OPTICAL CHARACTERISTICS Ta= 25±2°C, VLCD=12.0V, fV=60Hz, Dclk=72MHz,

VBR_A =1.65V, VBR_B =3.3V, Except DCR Function

Value
Parameter Symbol Unit Note
Min Typ Max
CR 800 1000 1
Contrast Ratio
DCR - - Appendix 6
Surface Luminance, white LWH 400 500 cd/m2 2
Luminance Variation δ WHITE 5P 1.3 3
Response Time G to G - 6 10 ms 4
Rx 0.636
RED
Ry 0.343
Gx 0.284
GREEN
Color Coordinates Gy Typ 0.615 Typ
[CIE1931] Bx -0.03 0.144 +0.03
BLUE
By 0.063
Wx 0.279
WHITE
Wy 0.292
Viewing Angle (CR>10)
x axis, right(φ=0°) θr 89 - -
x axis, left (φ=180°) θl 89 - -
degree 5
y axis, up (φ=90°) θu 89 - -
y axis, down (φ=270°) θd 89 - -
Gray Scale 6

Ver. 1.0 15 / 34
 LC370WX4
Product Specification

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

CR (Contrast Ratio) = Maximum CRn (n=1, 2, 3, 4, 5)
DCR (Dynamic CR) = Maximum CRn (n=1, 2, 3, 4, 5)
Surface Luminance at position n with all white pixels
CRn =
Surface Luminance at position n with all black pixels
n = the Position number(1, 2, 3, 4, 5), For more information, see FIG 2.

2. Surface luminance is luminance value at the center point across the LCD surface 50cm from the
surface with all pixels displaying white.
For more information, see FIG 2.

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

δ WHITE(5P) = Maximum(Lon1,Lon2, Lon3, ...... , Lon5) / Minimum(Lon1,Lon2, Lon3, ..... , Lon5)
Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations .
For more information, see FIG 2.

4. Response time is the time required for the display to transition 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)

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 surface. For more information, see FIG 4.

6. Gray scale specification

Gamma Value is approximately 2.2. For more information, see Table 12.

Table 12. GRAY SCALE SPECIFICATION

Gray Level Luminance [%] (Typ)
L0 0.10
L15 0.32
L31 1.10
L47 2.60
L63 4.90
L79 8.10
L95 12.1
L111 16.7
L127 21.6
L143 28.0
L159 35.4
L175 43.9
L191 53.3
L207 64.1
L223 75.8
L239 88.0
L255 100

Ver. 1.0 16 / 34
 LC370WX4
Product Specification

Measuring point for surface luminance & measuring point for luminance variation

H
A

② ③

①
V
B

④ ⑤ A : H / 4 mm
B : V / 4 mm
H : 819.6 mm
V : 460.8 mm
@ H,V : Active Area

FIG. 2 Measure Point for Luminance

Response time is defined as the following figure and shall be measured by switching the input signal for
“Gray(N)” and “Gray(M)”.

%
TrR TrD
100
90

Optical
Response

10
Gray(N) Gray(M) Gray(N)
0
N,M = 0(Black)~255(White), N<M

FIG. 3 Response Time

Ver. 1.0 17 / 34
 LC370WX4
Product Specification

Dimension of viewing angle range

Normal
E Y
φ = 90 ° , Up

φ = 180 ° , Left
θ

φ = 0 ° , Right

φ = 270 ° , Down

FIG. 4 Viewing angle

Ver. 1.0 18 / 34
 LC370WX4
Product Specification

5. Mechanical Characteristics
The following items provide general mechanical characteristics. In addition the figures in the next page are
detailed mechanical drawing of the LCD module.

Table 13. MECHANICAL CHARACTERISTICS

Horizontal 877.0 mm

Outline Dimension Vertical 516.8 mm

Depth 55.5 mm

Horizontal 828.6mm
Bezel Area
Vertical 469.8mm

Horizontal 819.6mm
Active Display Area
Vertical 460.8mm

Weight 9000(Typ.)/9500(Max)

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

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

Ver. 1.0 19 / 34
 LC370WX4
Product Specification

<FRONT VIEW>

Ver. 1.0 20 / 34
 LC370WX4
Product Specification

<REAR VIEW>

Notes : It should be recommended that any exterior materials do not go passing up the red area slanted.
( For example, electrical cable, system board , etc ). Otherwise, it could cause that abnormal
display happens.

Ver. 1.0 21 / 34
 LC370WX4
Product Specification

6. Reliability

Table 14. ENVIRONMENT TEST CONDITION

No. Test Item Condition

1 High temperature storage test Ta= 50°C 240h

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

3 High temperature operation test Ta= 40°C 50%RH 240h

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

Wave form : random

Vibration level : 1.0G RMS
Vibration test
5 Bandwidth : 10-500Hz
(non-operating)
Duration : X,Y,Z, 10 min
One time each direction
Shock level : 100G
Shock test Waveform : half sine wave, 2ms
6
(non-operating) Direction : ±X, ±Y, ±Z
One time each direction

7 Humidity condition Operation Ta= 40 °C, 90%RH

Ver. 1.0 22 / 34
 LC370WX4
Product Specification

7. International Standards

7-1. Safety
a) UL 60065, 7th Edition, dated June 30, 2003, Underwriters Laboratories, Inc.,
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, 7th Edition CB-scheme and EN 60065:2002,
Safety requirements for Audio, Video and Similar Electronic Apparatus..

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)

Ver. 1.0 23 / 34
 LC370WX4
Product Specification

8. Packing

8-1. Designation of Lot Mark

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 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Mark 1 2 3 4 5 6 7 8 9 0

2. MONTH

Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Mark 1 2 3 4 5 6 7 8 9 A B C

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 : 4 pcs

b) Box Size : 968mm X 366mm X 595mm

Ver. 1.0 24 / 34
 LC370WX4
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) It is recommended to avoid the signal cable and conductive material over the inverter transformer
for it can cause the abnormal display and temperature rising.

Ver. 1.0 25 / 34
 LC370WX4
Product Specification

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 ion-
blown 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 normal-
hexane.

Ver. 1.0 26 / 34
 LC370WX4
Product Specification

Appendix 1-1.

■ REQUIRED SIGNAL ASSIGNMENT FOR LVDS TRANSMITTER ( Pin9=“L” )

Host System DS90C385 Timing

24 Bit or Compatible FI-X30SSL-HF Controller
RED0 51
48
RED1 52 TxOUT0- 12 RxIN0-
47 100Ω
RED2 54 TxOUT0+ 13 RxIN0+
RED3 55
RED4 56
46
RED5 3 TxOUT1- 15 RxIN1-
45 100Ω
RED6 50 TxOUT1+ 16 RxIN1+
RED7 2
GREEN0 4
42
GREEN1 6 TxOUT2- 18 RxIN2-
41 100Ω
GREEN2 7 TxOUT2+ 19 RxIN2+
GREEN3 11
GREEN4 12
40
GREEN5 14 TxCLKOUT- 21 RxCLKIN-
39 100Ω
GREEN6 8 TxCLKOUT+ 22 RxCLKIN+
GREEN7 10
BLUE0 15
38
BLUE1 19 TxOUT3- 24 RxIN3-
37 100Ω
BLUE2 20 TxOUT3+ 25 RxIN3+
BLUE3 22
1KΩ
BLUE4 23 9 LG / DISM
BLUE5 24 30 LCD Test
BLUE6 16 150Ω
BLUE7 18
Hsync 27
Vsync 28
GND
GND

Data Enable 30
LCD Module
CLOCK 31

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. (DS90C385 or Compatible)
3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data.

Ver. 1.0 27 / 34
 LC370WX4
Product Specification

Appendix 1-2.
■ REQUIRED SIGNAL ASSIGNMENT FOR LVDS TRANSMITTER ( Pin9=“H” )

Host System DS90C385 Timing

24 Bit or Compatible FI-X30SSL-HF Controller
RED0 50
48
RED1 2 TxOUT0- 12 RxIN0-
47 100Ω
RED2 51 TxOUT0+ 13 RxIN0+
RED3 52
RED4 54
46
RED5 55 TxOUT1- 15 RxIN1-
45 100Ω
RED6 56 TxOUT1+ 16 RxIN1+
RED7 3
GREEN0 8 42
GREEN1 10 TxOUT2- 18 RxIN2-
41 100Ω
GREEN2 4 TxOUT2+ 19 RxIN2+
GREEN3 6
GREEN4 7
40
GREEN5 11 TxCLKOUT- 21 RxCLKIN-
39 100Ω
GREEN6 12 TxCLKOUT+ 22 RxCLKIN+
GREEN7 14
BLUE0 16
38
BLUE1 18 TxOUT3- 24 RxIN3-
37 100Ω
BLUE2 15 TxOUT3+ 25 RxIN3+
BLUE3 19
1KΩ
BLUE4 20 9 LG / DISM
BLUE5 22 30 LCD Test
BLUE6 23 150Ω
BLUE7 24
Hsync 27
Vsync 28
GND
Vcc

Data Enable 30
LCD Module
CLOCK 31

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. (DS90C385 or Compatible)
3. ‘7’ means MSB and ‘0’ means LSB at R,G,B pixel data.

Ver. 1.0 28 / 34
 LC370WX4
Product Specification

Appendix 2. LC370WX4-SLA1 Packing Ass’y

■LC370WX4-SLA1 Packing Ass’y

NO. DESCRIPTION MATERIAL

1 LCD MODULE
2 BAG AL
3 TAPE MASKING 20MM X 50M
4 PACKING, BOTTOM EPS
5 PACKING, TOP R_L EPS
6 BOX PAPER_DW3
7 TAPE OPP 70MMX300M
8 LABEL YUPO PAPER 100X100

Ver. 1.0 29 / 34
 LC370WX4

# APPENDIX 2 Product Specification

Appendix 3. LC370WX4-SLA1 Pallet Ass’y

■ LC370WX4-SLA1 Pallet Ass’y

NO. DESCRIPTION MATERIAL

1 PACKING ASS’Y

2 PALLET Plywood_1140X990X130
3 ANGLE, PACKING SWR4
4 LABEL YUPO PAPER
5 TAPE OPP
6 BAND PP
7 BAND, CLIP CLIP 18MM

Ver. 1.0 30 / 34
 LC370WX4

# APPENDIX 3 Product Specification

Appendix 4. LCM Label & Serial No. format

■ LCM Label

LC370WX4
Model
(SL)(A1)
RoHS Verified

Serial No.
UL, TUV Mark
LPL Logo
MADE IN KOREA Origin
US PATENT No.

Ver. 1.0 31 / 34
 LC370WX4

# APPENDIX 4 Product Specification

Appendix 5. Box Label & Pallet Label format

■ Box Label ■ Pallet Label

LC370WX4 LC370WX4
SLA1
4 PCS SLA1
RoHS Verified
12 PCS

RoHS Verified

Ver. 1.0 32 / 34
 LC370WX4

# APPENDIX 3 Product Specification

Appendix 6-1
■ LCM DCR Only

LCM Control Board LCM VBR-B

NTSC / PAL Analog Switch

Sync_PWM
1 10 27 28 30
FFC Cable

System
30 1
LCM
Board
DCR_Enable “H”
12V
Master
Inverter
3.3V

VBR - B

14 3.3V
13 LCM VBR-B

11
VBR - A
NC / 1.65V

Luminance [%] DCR On

DCR_Enable On(3.3V) Off (0V) Gray Level
VBR-A = 1.65V
VBR-B 0V ~ 3.3V 3.3V L0 0.05
L15 0.33
VBR-A 1.65V or NC 1.65V or NC
L31 1.10
DCR Level 2000 : 1 1000 : 1 L47 2.81
L63 5.40
L79 8.5
L95 12.4
L111 16.7
L127 21.3
L143 27.4
L159 34.6
L175 43.0
L191 52.4
L207 63.0
L223 74.5
L239 86.8
L255 100

Ver. 1.0 33 / 34
 LC370WX4

# APPENDIX 3 Product Specification

Appendix 6-2
■ System DCR (Dynamic Contrast Ratio)- Max 5000:1

LCM Control Board LCM VBR-B

NTSC / PAL Analog Switch

Sync_PWM
1 10 27 28 30
FFC Cable

System
30 1
LCM
Board
DCR_Enable “L”
12V
Master
Inverter
3.3V

VBR - B

14 0 ~ 3.3V
13

11
VBR - A
0 ~ 3.3V

VBR-B 0V ~ 3.3V 3.3V

VBR-A 0V ~ 3.3V 1.65V

DCR Level 5000 : 1 1000 : 1

Note : 1. To make DCR Max 5000:1, VBR-A and VBR-B must be given by system.

2. DCR Max 5000:1 is defined mathematically as :

DCR = Maximum DCRn (n=1, 2, 3, 4, 5)

Surface Luminance at position n with all white pixels (VBR-B=3.3V, VBR-A=3.3V)

DCRn =
Surface Luminance at position n with all black pixels (VBR-B=0V, VBR-A=0V)

n = the Position number(1, 2, 3, 4, 5). For more information, see FIG 2.

Ver. 1.0 34 / 34