Bar LCM Specification SL4238ML-L1

(◆) Preliminary Specification 

( ) Final Specification 

Specification 

SL4238ML-L1 

MODEL : SL4238ML-L1 

VERSION : 0.1 

DATE : 2011/1/28 

Doc.No : 1101-4238540L1 

Signature Data Approved by Data 

Please return 1 copy for your information 

with your signature and comments 

Product Engineering Dept. 

Systems Technology Inc. 

The Information Described in this Specification is Preliminary and can be changed without prior notice


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3-1 

3-2 

3-3 

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7-1 

7-2 

10-1 

10-2 

10-3 

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10-6 

Contents 

Revision History 

General Description 

Absolute Maximum Ratings 

Electrical Specifications 

Electrical Characteristics 

Interface Connections 

Signal Timing Specifications 

LVDS Signal Specification 

Color Data Reference 

Power Sequence 

Optical Specification 

Mechanical Characteristics 

Reliability 

International standards 

Safety 

EMC 

Packing 

Marking & Others 

Precautions 

Mounting Precautions 

Operating Precautions 

Storage 


Contents 

Electrostatic Discharge Control 

Item 

Precautions for Strong Light Exposure 

Handling Precautions for Protection Film 

Bar LCM Specification 

Page 

Document No.: 1101-4238540L1 Version 0.1 

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Page 1 of 32


Revision History 

Date 

2011-01-28 

Rev.No 

0.1 


Page 


Description 

Preliminary Specifications. 


Page 2 of 32


1. General Description 



The SL4238ML-L1 is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED) 

back l light 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 38 inch diagonally 

measured active display area with WUXGA resolution (540 vertical by 1920 horizontal pixel array). 

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 10-bit gray scale signal for each dot. 

Therefore, it can present a palette of more than 1.06Bilion colors. 

It has been designed to apply the 10-bit 4-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. 

General Information 

Interface 

Weight 

LVDS 

2 Port 

LVDS 2Port 

LVDS select 

Bit select 

+12V 

V_sync 

Din 

DCLK 

Display format 

Pixel Pitch 

Pixel Format 

Color Depth 

Luminance, White 

CN2 

41pin 

CN1 

51pin 

CN3 

8pin 

Active Display Size 

Outline Dimension 

Viewing Angle (CR>10) 

Power Consumption 

Display Operating Mode 

Surface Treatment 

LVDS 3,4 

LVDS 1,2 

I2C 

+24V , GND , On/Off 

Ext VBR-B 

Option signal 

930.24 mm(H) x 261.63 mm(V) 

42inch, 1 / 2 type 

973.2 mm(H) x 304.6 mm(V) x 30 mm(D) 

0.4845 mm x 0.4845 mm 

1920 horiz. by 540 vert. pixels RGB stripe arrangement 

LVDS 4Port 

10Bit(D) , 1.06 Billion colors 

800 cd/m2 (Center 1-point) (Typ.) 

Viewing Angle Free ( R/L 178 (Typ.), U/D 178 (Typ)) 

Total 98W (Typ.) (Logic=10W, LED Driver=88W) 

7.0 Kg (Typ) 

EEPROM 

SCL SDA 

Timing Controller 

LVDS Rx+OPC+DGA+ODC 

Integrated 

Power Circuit 

Block 

LED Driver 

Control 

Signals 

Power Signals 

Transmissive mode, Normally black 

Mini-LVDS (RGB) 

Hard coating (3H), 

Anti-glare treatment of the front polarizer (Haze 10%) 

Source Driver Circuit 

TFT-LCD Panel 

(1920 x RGB x 540 pixels) 

[ Gate In Panel ] 


G1 

G540 

S1 S1920 

V : 6 Block 

Local Dimming : 12 Block 

H : 2 Block 

Page 3 of 32


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 

Driver Control Voltage 

Storage Humidity 

Parameter 

Power Input Voltage 

Operating Temperature 

Storage Temperature 

Panel Front Temperature 

Operating Ambient Humidity 

-NOTE 

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

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 

-20 

Wet Bulb 

Temperature [℃] 

0 

0 

LCD Circuit 

Driver 

Brightness 

T-Con Option Selection Voltage 

10 

20 

30 

Symbol 

VLCD 

VBL 

EXTVBR-B 

V LOGIC 

T OP 

T ST 

T SUR 

H OP 

H ST 

40 


90% 

10 20 30 40 50 60 70 80 

Dry Bulb Temperature [℃] 

50 

60 

Min 

-0.3 

-0.3 

0.0 

-0.3 

0 

-20 

- 

10 

10 

Value 

Max 

+14.0 

+27.0 

+5.5 

+4.0 

+50 

+60 

+68 

90 

90 

60% 

40% 

10% 

Humidity [(%)RH] 

Unit 

VDC 

VDC 

ON / OFF VOFF / VON -0.3 +5.5 VDC 

1 

VDC 

VDC 

°C 

°C 

°C 

%RH 

%RH 

Storage 

Operation 

Remarks 

2 , 3 

4 

2 , 3 

Page 4 of 32


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 

Circuit : 

Rush current 

Note : 

Parameter 

Power Input Voltage 

Power Input Current 


Symbol 

V LCD 

I LCD 

P LCD 

I RUSH 

1. The specified current and power consumption are under the VLCD=12.0V, Ta=25 ± 2°C, fV=120Hz 

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 0.5ms (min.). 

Min 

10.8 

- 

- 

- 

White : 1023 Gray 

Black : 0Gray 

Value 

Typ 

12.0 

815 

1140 

9.78 

Mosaic Pattern (8 x 3) 


- 

Max 

13.2 

1060 

1482 

12.72 

5 

Unit 

VDC 

mA 

mA 

Watt 

A 

Remarks 

1 

2 

1 

3 

Page 5 of 32


Table 3. Electrical characteristics 

LED Driver 

Power Supply Input Current 

LED : 

Life Time 

Parameter 

Power Supply Input Voltage 

Power Supply Input Current 

(In-Rush) 


On/Off 

On 

Off 

Brightness Adjust 

PWM Frequency for 

NTSC & PAL 


Symbol 

V BL 

IBL_A 

Irush 

P BL 

Von 

Voff 

ExtV BR-B 

PAL 

NTSC 


Ext VBR-B = 100% 

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 One time harmonic of Vsync 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 10ms. 

5. Even though inrush current is over the specified value, there is no problem if I 2 T spec of fuse is satisfied. 

Min 

22.8 

- 

- 

- 

2.5 

-0.3 

10 

30,000 

Values 

Typ 

24.0 


3.7 

- 

88 

- 

0.0 

- 

100 

120 

50,000 

Max 

25.2 

4.0 

6.5 

94.1 

5.0 

0.7 

100 

Unit 

Vdc 

A 

A 

W 

Vdc 

Vdc 

% 

Hz 

Hz 

Hrs 

V BL = 22.8V 

ExtV BR_B = 100% 

4 

V BR-B = 100% 

On Duty 

Remarks 

1 

3 

3 

2 

Page 6 of 32

No. 

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24 

25 

26 


3.2. Interface connections 

Table 4-1. Module connector(CN1) pin configuration 



This LCD module employs two kinds of interface connection, 51-pin connector and 41-pin connector are used 

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

3.2.1 LCD Module 

- LCD Connector : FI-R51S-HF(manufactured by JAE) or KN25-51P-0.5SH(manufactured by Hirose) 

(CN1) Refer to below and next Page table 

- Mating Connector : FI-R51HL(JAE) or compatible 

Symbol 

NC 

NC 

NC 

NC 

NC 

NC 

LVDS Select 

NC 

NC 

L-DIM Enable 

GND 

R1AN 

R1AP 

R1BN 

R1BP 

R1CN 

R1CP 

GND 

R1CLKN 

R1CLKP 

GND 

R1DN 

R1DP 

R1EN 

R1EP 

NC 

No Connection 

No Connection 

No Connection 

No Connection 

No Connection 

No Connection 

‘H’ = JEIDA, ‘L’ or NC = VESA 

No Connection 

No Connection 

‘H’ = Enable, ‘L’ or NC = Disable 

Ground 

FIRST LVDS Receiver Signal (A-) 

FIRST LVDS Receiver Signal (A+) 

FIRST LVDS Receiver Signal (B-) 

FIRST LVDS Receiver Signal (B+) 

FIRST LVDS Receiver Signal (C-) 

FIRST LVDS Receiver Signal (C+) 

Ground 

FIRST LVDS Receiver Clock Signal(-) 

FIRST LVDS Receiver Clock Signal(+) 

Ground 

FIRST LVDS Receiver Signal (D-) 

FIRST LVDS Receiver Signal (D+) 

FIRST LVDS Receiver Signal (E-) 

FIRST LVDS Receiver Signal (E+) 

No Connection 

Description 

No. 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

42 

43 

44 

45 

46 

47 

48 

49 

50 

51 

- 

Symbol 

Bit Select 

R2AN 

R2AP 

R2BN 

R2BP 

R2CN 

R2CP 

R2DP 

R2EN 

R2EP 

VLCD 

VLCD 

VLCD 

VLCD 


GND 

R2CLKN 

R2CLKP 

GND 

R2DN 

NC 

NC 

GND 

GND 

GND 

NC 

- 

SECOND LVDS Receiver Signal (A-) 

SECOND LVDS Receiver Signal (A+) 

SECOND LVDS Receiver Signal (B-) 

SECOND LVDS Receiver Signal (B+) 

SECOND LVDS Receiver Signal (C-) 

SECOND LVDS Receiver Signal (C+) 

Ground 

SECOND LVDS Receiver Clock Signal(-) 

SECOND LVDS Receiver Clock Signal(+) 

Ground 

SECOND LVDS Receiver Signal (D-) 

SECOND LVDS Receiver Signal (D+) 

SECOND LVDS Receiver Signal (E-) 

SECOND LVDS Receiver Signal (E+) 

No Connection 

No Connection 

Ground 

Ground 

Ground 

No connection 

Description 

H’ or NC= 10bit(D) , ‘L’ = 8bit 

Power Supply +12.0V 




- 

Page 7 of 32




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~#6) are used for internal data process of the LCD module. 

These pins should be no connection. 

5. Specific pins (pin No. #10) are used for Local Dimming function of the LCD module. 

If not used, these pins are no connection. (Please see the Appendix III-4 for more information.) 

6. LVDS pin (pin No. #24,25,40,41) are used for 10Bit(D) of the LCD module. 

If used for 8Bit(R), these pins are no connection. 

7. Specific pin No. #44 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). 


Page 8 of 32

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 

21 



Symbol 

NC 

NC 

NC 

NC 

NC 

NC 

NC 

NC 

GND 

RA3N 

RA3P 

RB3N 

RB3P 

RC3N 

RC3P 

GND 

RCLK3N 

RCLK3P 

GND 

RD3N 

RD3P 

No Connection 

No Connection 

No Connection 

No Connection 

No Connection 

No Connection 

No Connection 

Ground 

THIRD LVDS Receiver Signal (A-) 

THIRD LVDS Receiver Signal (A+) 

THIRD LVDS Receiver Signal (B-) 

THIRD LVDS Receiver Signal (B+) 

THIRD LVDS Receiver Signal (C-) 

THIRD LVDS Receiver Signal (C+) 

Ground 

THIRD LVDS Receiver Clock Signal(-) 

THIRD LVDS Receiver Clock Signal(+) 

Ground 

Description 

No connection (Reserved) 

THIRD LVDS Receiver Signal (D-) 

THIRD LVDS Receiver Signal (D+) 



-LCD Connector : FI-RE41S-HF (manufactured by JAE) or KN25-41P-0.5SH (manufactured by Hirose) 

(CN2) 

- Mating Connector : FI-RE41HL 

22 

23 

24 

25 

26 

27 

28 

29 

30 

31 

32 

33 

34 

35 

36 

37 

38 

39 

40 

41 

- 

Symbol 

RE3N 

RE3P 

RA4N 

RA4P 

RB4N 

RB4P 

RC4N 

RC4P 

RCLK4N 

RCLK4P 

RD4N 

RD4P 

RE4N 

RE4P 

Notes : 

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

2. LVDS pin (pin No. #22,23,38,39) are used for 10Bit(D) of the LCD module. 

If used for 8Bit(R), these pins are no connection. 


No. 

1 

2 

3 

4 

5 

6 

7 

8 

Symbol 

VSYNC 

GND 

GND 

SIN 

GND 

SCLK 

Reserved 

Reverse 

Vertical Sync signal 

Backlight Ground 



No Connection 

Description 

Local Dimming Serial Data 

Local Dim Serial Clock 

Local Dimming data Reverse 

No. 

Ground 


GND 

GND 

GND 

GND 

GND 

GND 

THIRD LVDS Receiver Signal (E-) 

THIRD LVDS Receiver Signal (E+) 

Ground 

Ground 

FORTH LVDS Receiver Signal (A-) 

FORTH LVDS Receiver Signal (A+) 

FORTH LVDS Receiver Signal (B-) 

FORTH LVDS Receiver Signal (B+) 

FORTH LVDS Receiver Signal (C-) 

FORTH LVDS Receiver Signal (C+) 

Ground 

FORTH LVDS Receiver Clock Signal(-) 

FORTH LVDS Receiver Clock Signal(+) 

Ground 

FORTH LVDS Receiver Signal (D-) 

FORTH LVDS Receiver Signal (D+) 

FORTH LVDS Receiver Signal (E-) 

FORTH LVDS Receiver Signal (E+) 

Ground 

Description 

Page 9 of 32


3.2.2 LCD Module 

Master 

- LED Driver Connector : 20022WR-14B1(Yeonho) 

or Equivalent 

- Mating Connector : 20022HS-14 or Equivalent 

Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

Symbol 

VBL 

VBL 

VBL 

VBL 

VBL 

GND 

GND 

GND 

GND 

GND 

NC 

Von / off 

EXT VBR-B 

NC 

No connection 

External PWM 

No connection 







Description 






Backlight ON / OFF control 


GND 

GND 

GND 

GND 

GND 

OPEN or GND 

Von / off 

EXT VBR-B 

OPEN or GND 

Notes : 

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

2. High : on duty / Low : off duty, Pin#13 can be opened. ( if Pin #13 is open , EXTVBR-B is 100% ) 

3. Each impedance of pin #12 and 13 is over 50 [KΩ]. 

■ Rear view of LCM 

< Master > 


VBL 

VBL 

VBL 

VBL 

VBL 

1 

2 

TBD 

Page 10 of 32


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 6-1. TIMING TABLE for NTSC (DE Only Mode) 

Horizontal 

Vertical 

Frequency 

ITEM 

Display Period 


ITEM 

Blank 

Total 

Blank 

Total 

DCLK 

Horizontal 

Vertical 

Symbol 

tHV 

tHB 

tHP 

tVV 

tVB 

tVP 

Symbol 

fCLK 

Min 

480 

40 

520 

1080 

16 

1096 

Min 

66.97 

121.8 

108 

Table 6-2. TIMING TABLE for DVE / PAL (DE Only Mode) 

Horizontal 

Vertical 

Frequency 

ITEM 



ITEM 

Blank 

Total 

Blank 

Total 

DCLK 

Horizontal 

Vertical 

fH 

fV 

Symbol 

tHV 

tHB 

tHP 

tVV 

tVB 

tVP 

Symbol 

fCLK 

fH 

fV 

Min 

480 

40 

520 

1080 

228 

1308 

Min 

66.97 

121.8 

95 

Typ 

480 

70 

550 

1080 

45 

1125 

Typ 

74.25 

135 

120 

Typ 

480 

70 

550 

1080 

270 

1350 

74.25 

Lines 

Lines 

Lines 

1920/4 


Max 

480 

200 

680 

1080 

86 

1166 

Max 

78.00 

140 

122 

Max 

480 

200 

680 

1080 

300 

1380 

78.00 

Unit 

tclk 

tclk 

tclk 

Unit 

MHz 

KHz 

Hz 

Unit 

tclk 

tclk 

tclk 

Lines 

Lines 

Lines 

Note : 

1. The Input of HSYNC & VSYNC signal does not have an effect on normal operation(DE Only Mode). 

If you use spread spectrum for 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. 

Typ 

135 

100 

Max 

140 

104 

Unit 

MHz 

KHz 

Hz 

Note 

1 

Note 

2 

2 

Note 

1920/4 

1 

Note 

148.5/2 

Page 11 of 32


3.4. LVDS Signal Specification 

3.4.1 LVDS Input Signal Timing Diagram 




Page 12 of 32


3.4.2 LVDS Input Signal Characteristics 

1) DC Specification 

Description 

LVDS Common mode Voltage 

LVDS Input Voltage Range 



Change in common mode Voltage △VCM 

- 

250 

mV 

- 

2) AC Specification 

LVDS Clock/DATA Rising/Falling time 

Effective time of LVDS 

Description 

LVDS Differential Voltage 

LVDS Clock to Data Skew Margin 

Symbol 

VCM 

VIN 

High Threshold 

Low Threshold 

Min 

1.0 

0.7 

Symbol 

VTH 

VTL 

tSKEW 

tRF 

teff 


Max 

1.5 

1.8 

- 

260 

±360 

Unit 

V 

V 

/(0.25*Tclk)/7/ 

(0.3*Tclk)/7 

LVDS Clock to Clock Skew Margin (Even to Odd) tSKEW_EO 

- 

1/7*Tclk Tclk - 

Note : 

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

2. If tRF isn’t enough, teff should be meet the range. 

3. LVDS Differential Voltage is defined within teff 

Min 

100 

-300 

Max 

300 

-100 

- 

Unit 

mV 

mV 

ps 

ps 

ps 

Note 

Page 13 of 32 

- 

- 

Note 

3 

- 

2 

-





Page 14 of 32


Table 7. Color Data Reference 

Basic 

Color 

RED 

GREEN 

BLUE 

3.5 Color Data Reference 



The brightness of each primary color (red,green,blue) is based on the 10-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. 

Color 

Black 

Red (1023) 

Green (1023) 

Blue (1023) 

Cyan 

Magenta 

Yellow 

White 

RED (000) 

RED (001) 

... 

RED (1022) 

RED (1023) 

GREEN (000) 

GREEN (001) 

... 

GREEN (1022) 

GREEN (1023) 

BLUE (000) 

BLUE (001) 

... 

BLUE (1022) 

BLUE (1023) 

RED 

MSB LSB 

R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

1 1 1 1 1 1 1 1 1 1 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 1 

... 

1 1 1 1 1 1 1 1 1 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

... 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

... 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

Input Color Data 

GREEN 

MSB LSB 

G9 G8 G7 G6 G5 G4 G3 G2 G1 G0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 1 

1 1 1 1 1 1 1 1 1 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 0 

1 1 1 1 1 1 1 1 1 1 


... 

... 

... 

BLUE 

MSB LSB 

B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

1 1 1 1 1 1 1 1 1 1 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

1 1 1 1 1 1 1 1 1 1 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

... 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

... 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 0 

0 0 0 0 0 0 0 0 0 1 

... 

Page 15 of 32


3.6. Power Sequence 

3.6.1. LCD Driving circuit 

Table 8. POWER SEQUENCE 

Parameter 

T1 

T2 

T3 

T4 

T5 

T6 

T7 

T8 

Min 

0.5 

0 

200 

200 

1.0 

- 

0.5 

100 


Value 

Typ 

- 

- 

- 

- 

- 

- 

- 

- 



Max 

20 

- 

- 

- 

- 

- 

T2 

- 

ms 

ms 

ms 

ms 

s 

ms 

s 

ms 

Remarks 

Note : 

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

2. When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data 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 user control signals) precedes the on time of Power (VLCD), 

it will be happened abnormal display. When T6 is NC status, T6 doesn’t need to be measured. 

5. T5 should be measured after the Module has been fully discharged between power off and on 

period. 

6. It is recommendation specification that T8 has to be 100ms as a minimum value. 

Unit 

4 

3 

3 

5 

4 

6 

Page 16 of 32


3.6.2. Sequence for LED Driver 

Power Supply For LED Driver 

3.6.3. Dip condition for LED Driver 

VBL(Typ.) x 0.8 

Table 9. Power Sequence for LED Driver 

Parameter 

T1 

T2 

T3 

T4 

T5 

T6 

Min 

20 

500 

10 


0 

0 

- 

Values 

Typ 

- 

- 

- 

- 

- 

T6 

Max 


VBL : 24V 


- 

- 

- 

- 

- 

10 

Units 

ms 

ms 

ms 

ms 

ms 

ms 

0V 

Remarks 

1 

V BL (Typ) x 0.8 

Notes : 

1. T1 describes rising time of 0V to 24V and this parameter does not applied at restarting time. 

Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied. 

Page 17 of 32


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 Φ and θ 

equal to 0 °. 

FIG. 1 shows additional information concerning the measurement equipment and method. 

Table 10. Optical characteristics 

Surface Luminance, white 

Luminance Variation 

Response 

Time 

Color 

Coordinates 

[CIE1931] 

Color Temperature 

Uniformity 

Color Gamut (CIE1931 NTSC) 

Viewing Angle (CR>10) 

Gray Scale 

Optical Stage(x,y) 

Parameter 

Gray-to- Gray 

MPRT 

Uniformity 

RED 

GREEN 

BLUE 

WHITE 

x axis, right(φ=0°) 

x axis, left (φ=180°) 

y axis, up (φ=90°) 

y axis, down (φ=270°) 

LCD Module 

Ta=25±2°C,VLCD=12.0V,fV=120Hz,Dclk=74.25MHz,EXTVBR_B=100% 

Contrast Ratio CR 1000 1400 - 

L WH 

δ WHITE 

δ MPRT 

δ G TO G 

Rx 

Ry 

Gx 

Gy 

Bx 

By 

Wx 

Wy 

θr 

θl 

θu 

θd 

1° 

Symbol 

G to G 

MPRT 

5P 

Min 

600 

- 

- 

- 

- 

- 

Typ 

-0.03 

89 

89 

89 

89 

- 

Value 


Typ 

800 

- 

5 

8 

- 

- 

0.647 

0.332 

0.309 

0.601 

0.149 

0.059 

0.279 

0.292 

10,000 

72 

- 

- 

- 

- 

- 

BM7 or 

equivalent 

50cm 

FIG. 1 Optical Characteristic Measurement Equipment and Method 

Max 

1.3 

8 

12 

1 

1 

Typ 

+0.03 

K 

% 

- 

- 

- 

- 

- 

Unit 

cd/m 2 

ms 

ms 

degree 

Remarks 

1 

2 

3 

4,5 

6 

7 

Page 18 of 32




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

Contrast Ratio = (Surface Luminance with all white pixels) / (Surface Luminance with all black pixels) 

It is measured at center 1-point. 

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

δ WHITE(5P) = Maximum(Lon1,Lon2, Lon3, Lon4, Lon5) / Minimum(Lon1,Lon2, Lon3, Lon4, Lon5) 

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, TrR) and from G(M) to 

G(N) (Decay Time, TrD). For additional information see the FIG. 3. (N


Measuring point for surface luminance & luminance variation 

V 

B 

Response time is defined as the following figure and shall be measured by switching the input 

signal for “Gray(N)” and “Gray(M)”. 

100 

90 

Optical 

Response 

10 

0 

② 

④ 

Gray(N) 

A 


H 

① 

FIG.2 5 Points for Luminance Measure 

TrR TrD 

Gray(M) 

③ 

⑤ 

N,M = (Black)~(White), N




MPRT is defined as the 10% to 90% blur-edge with Bij(pixels) and scroll speed U(pixels / frame) at the moving 

picture. 

Example) 

Bij = 12 pixels, U = 10 pixels / 120 Hz 

M = 12 pixels / (10 pixels / 120Hz) 

= 12 pixels / (10 pixels / (1/120)s) 

= 12 / 1,200 s 

= 10 ms 

Dimension of viewing angle range 

Φ=180 °, LEFT 

Φ=270 °, DOWN 

FIG. 4 MPRT 

NORMAL 

θ 

Φ 

E 

FIG. 5 Viewing Angle 

Φ=90 °, UP 

Φ=0 °, RIGHT 


Y 

Page 21 of 32


5. Mechanical Characteristics 

Table 12 provides general mechanical characteristics. 

Table 12. MECHANICAL CHARACTERISTICS 

Bezel Area 

Weight 

Item 

Outline Dimension 

Active Display Area 


Horizontal 

Vertical 

Depth 

Horizontal 

Vertical 

Horizontal 

Vertical 

7.0 Kg 


Value 

973.2 mm 

304.6 mm 

30.0 mm 

937.2 mm 

268.6 mm 

930.24 mm 

261.62 mm 

Notes : 

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


Page 22 of 32


 




Page 23 of 32


 




Page 24 of 32


6. Reliability 

Table 13. Environment test conditions 

No. 

1 

2 

3 

4 

5 

6 

7 

8 

Notes : 

Altitude 

operating 

storage / shipment 

0 - 15,000 ft 

0 - 40,000 ft 

1. Before and after Reliability test, LCM should be operated with normal function. 

7. International standard 

7.1. Safety 

TBD 

7.2. EMC 

TBD 

8. Packing 

Shock test 

(non-operation) 

TBD 

9. Marking & Others 

TBD 

Vibration test 

Test Item 

High temperature storage test 

Low temperature storage test 

High temperature operation test 

Low temperature operation test 

Humidity condition Operation 


Ta= 40°C 90%RH 


Condition 

Ta= 60°C 240h 

Ta= -20°C 240h 

Ta= 50°C 50%RH 240h 

Ta= 0°C 240h 

Wave form : random 

Vibration level : 1.0Grms 

Bandwidth : 10-300Hz 

Duration : X,Y,Z 30 min 

Each direction per 10 min 

Shock level :50G(X,Y axis) , 35G(Z axis) 

Waveform : half sine wave, 11ms 

Direction : ±X, ±Y, ±Z 

One time each direction 


Page 25 of 32


10. Precautions 

Please pay attention to the followings when you use this TFT LCD module. 

10-1. 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 benzene. 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. 

10-2. 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 

not be operated its full characteristics perfectly. 

(8) A screw which is fastened up the steels should be a machine screw (if not, it causes metal 

foreign material and deal LCM a fatal blow) 

(9) Please do not set LCD on its edge. 

(10) The conductive material and signal cables are kept away from LED driver inductor to 

prevent abnormal display, sound noise and temperature rising. 


Page 26 of 32


10-3. 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. 

10-4. Precautions for strong light exposure 

Strong light exposure causes degradation of polarizer and color filter. 

10-5. 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. 

10-6. 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. 


Page 27 of 32


# APPENDIX-1 



櫴■ Required signal assignment for Flat Link (Thine : THC63LVD103) Transmitter(Pin7=“L”) 

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. (THC63LVD103 or Compatible) 

3. ‘9’ means MSB and ‘0’ means LSB at R,G,B pixel data. 


Page 28 of 32


# APPENDIX-2 



櫴■ Required signal assignment for Flat Link (Thine : THC63LVD103) Transmitter(Pin7=“H”) 

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. (THC63LVD103 or Compatible) 

3. ‘9’ means MSB and ‘0’ means LSB at R,G,B pixel data. 


Page 29 of 32


# APPENDIX-3 

LVDS Data-Mapping info. (10 bit) 




Page 30 of 32


# APPENDIX-4 

LVDS Data-Mapping info. (8 bit) 




Page 31 of 32


# APPENDIX-5 

■ Option Pin Circuit Block Diagram 




Page 32 of 32


# APPENDIX-6 



■ EXTVBR-B & Local Dimming Design Guide 

1) When L-Dim Enable is “L", Vertical Sync Signal = System Dimming with 100Hz or 120Hz frequency. 

2) Local Dimming signals are synchronized with V-Sync Freq. of System in T-Con Board. 

3) EXTVBR-B Specification ( VCC = 3.3V ) @ Local Dimming 

a) High Voltage Range : 2.5 V ~ 3.6 V 

b) Low Voltage Range : 0.0 V ~ 0.8 V 

EXTVBR-B 

Frequency 

Rising Time 

Falling Time 

MAX 1KHz 

Recommendation : 

100 Hz for PAL 

120 Hz for NTSC 

MAX 10.0 us 

MAX 10.0 us 

VDD 

VDD*0.9 

VDD*0.1 

0 

Rising Time 

Falling Time 


Page 33 of 32

Bar LCM Specification SL4238ML-L1

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