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LC470EUN
Product Specification
SPECIFICATION
FOR
APPROVAL
( ) Preliminary Specification
( ) Final Specification
Title 47.0" WUXGA TFT LCD
BUYER SKYWORTH SUPPLIER LG Display Co., Ltd.
MODEL *MODEL LC470EUN
SUFFIX SDF1 (RoHS Verified)
*When you obtain standard approval,
please use the above model name without suffix
SIGNATURE SIGNATURE
APPROVED BY APPROVED BY
DATE DATE
/ J.T. Eo / Team Leader
REVIEWED BY
/ S.W.Yu / Project Leader
PREPARED BY
/ S.G.Park / Engineer
Please return 1 copy for your confirmation with TV Product Development Dept.
your signature and comments. LG Display Co., Ltd.
Ver. 0.3 1 /36
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LC470EUN
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 LVDS SIGNAL SPECIFICATIONS 11
3-5 COLOR DATA REFERENCE 14
3-6 POWER SEQUENCE 15
4 OPTICAL SPECIFICATIONS 17
5 MECHANICAL CHARACTERISTICS 21
6 RELIABILITY 24
7 INTERNATIONAL STANDARDS 25
7-1 SAFETY 25
7-2 EMC 25
7-3 Environment 25
8 PACKING 26
8-1 INFORMATION OF LCM LABEL 26
8-2 PACKING FORM 26
9 PRECAUTIONS 27
9-1 MOUNTING PRECAUTIONS 27
9-2 OPERATING PRECAUTIONS 27
9-3 ELECTROSTATIC DISCHARGE CONTROL 28
9-4 PRECAUTIONS FOR STRONG LIGHT EXPOSURE 28
9-5 STORAGE 28
9-6 HANDLING PRECAUTIONS FOR PROTECTION FILM 28
Ver. 0.3 2 /36
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LC470EUN
Product Specification
RECORD OF REVISIONS
Revision No. Revision Date Page Description
0.0 Dec, 18, 2010 - Preliminary Specification(First Draft)
Ver. 0.3 3 /36
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LC470EUN
Product Specification
1. General Description
The LC470EUN is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)
b a c k l i g h t s y s t e m . T h e m a t r i x e mplo ys a-Si Th in Film Trans istor as the active e lem ent.
It is a transmissive display type which is operating in the normally black mode. It has a 46.96 inch diagonally
measured active display area with WUXGA resolution (1080 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 8-bit gray scale signal for each dot.
Therefore, it can present a palette of more than 16.7Milion colors.
It has been designed to apply the 8-bit 2-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.
Mini-LVDS(RGB)
EEPROM
LVDS Source Driver Circuit
2Port SCL SDA S1 S1920
LVDS G1
LVDS 1,2
Select
OPC/TM CN1
(51pin)
Option
Timing Controller
LVDS Rx + OPC + DGA
TFT - LCD Panel
Enable signal Control (1920 RGB 1080 pixels)
Integrated
Signals [Gate In Panel]
ExtVBR-B
I2C G1080
+12.0V
Power Circuit Power Signals Scanning Block 1
Block
Scanning Block 2
PWM_OUT Scanning Block 3
1~5
Scanning Block 4
LED Driver
+24.0V, GND, On/Off Scanning Block 5
General Features
Active Screen Size 46.96 inches(1192.87mm) diagonal
Outline Dimension 1078.6(H) 626.0(V) X 10.8(B)/24.0 mm(D) (Typ.)
Pixel Pitch 0.5415 mm x 0.5415 mm
Pixel Format 1920 horiz. by 1080 vert. Pixels, RGB stripe arrangement
Color Depth 8bit, 16.7 Million colors
Luminance, White 360 cd/m2 (Center 1point ,Typ.)
Viewing Angle (CR>10) Viewing angle free ( R/L 178 (Min.), U/D 178 (Min.))
Power Consumption Total 100.2W (Typ.) [Logic= 7.1W, LED Driver=93.1W (ExtVbr_B=100% )]
Weight 12.8 Kg (Typ./TBD)
Display Mode Transmissive mode, Normally black
Surface Treatment Hard coating(2H), Anti-glare treatment of the front polarizer (Haze 10%)
Ver. 0.3 4 /36
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Product Specification
2. Absolute Maximum Ratings
The following items are maximum values which, if exceeded, may cause faulty operation or permanent damage
to the LCD module.
Table 1. ABSOLUTE MAXIMUM RATINGS
Value
Parameter Symbol Unit Note
Min Max
LCD Circuit VLCD -0.3 +14.0 VDC
Power Input Voltage
Driver VBL -0.3 + 27.0 VDC
ON/OFF VOFF / VON -0.3 +5.5 VDC 1
Driver Control Voltage
Brightness EXTVBR-B 0.0 +3.6 VDC
T-Con Option Selection Voltage VLOGIC -0.3 +4.0 VDC
Operating Temperature TOP 0 +50 C
2,3
Storage Temperature TST -20 +60 C
Panel Front Temperature TSUR - +68 C 4
Operating Ambient Humidity HOP 10 90 %RH
2,3
Storage Humidity HST 10 90 %RH
Note1. Ambient temperature condition (Ta = 25 r 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 be degraded in case of
improper thermal management in final product design.
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. 0.3 5 /36
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LC470EUN
Product Specification
3. Electrical Specifications
3-1. Electrical Characteristics
It requires two power inputs. One is employed to power for the LCD circuit. The other Is used for the LED
backlight and LED Driver circuit.
Table 2. ELECTRICAL CHARACTERISTICS
Value
Parameter Symbol Unit Note
Min Typ Max
Circuit :
Power Input Voltage VLCD 10.8 12.0 13.2 VDC
- 590 770 mA 1
Power Input Current ILCD
- 900 1170 mA 2
Power Consumption PLCD 7.1 9.2 Watt 1
Rush current IRUSH - - 5.0 A 3
5 - 100 %
On Duty
ExtVBR-B
4
1 - 100 %
Brightness Adjust for Back Light
40 50 Hz
ExtVBR-B
Frequency 60 80 Hz
Note
1. The specified current and power consumption are under the VLCD=12.0V, Ta=25 r 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 0.5ms (min.).
4. ExtVBR-B signal have to input available duty range and sequence.
After Driver ON signal is applied, ExtVBR-B should be sustained from 5% to 100% more than 500ms.
After that, ExtVBR-B 1% and 100% is possible
For more information, please see 3-6-2. Sequence for LED Driver.
White : 255 Gray
Black : 0 Gray
Mosaic Pattern(8 x 6)
Ver. 0.3 6 /36
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LC470EUN
Product Specification
Table 3. ELECTRICAL CHARACTERISTICS (Continue)
Values
Parameter Symbol Unit Notes
Min Typ Max
LED Driver :
Power Supply Input Voltage VBL 22.8 24.0 25.2 Vdc 1
Power Supply Input Current IBL - 3.87 4.24 A 1
VBL = 22.8V
Power Supply Input Current (In-Rush) In-rush - - 5.3 A Ext VBR-B = 100%
3
Power Consumption PBL - 93.1 101.8 W 1
Input Voltage for On V on 2.5 - 5.0 Vdc
Control System On/Off
Signals Off V off -0.3 0.0 0.7 Vdc
LED :
Life Time 30,000 50,000 Hrs 2
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. The duration of rush current is about 200ms. This duration is applied to LED on time.
4. Even though inrush current is over the specified value, there is no problem if I 2T spec of fuse is satisfied.
Ver. 0.3 7 /36
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Product Specification
3-2. Interface Connections
This LCD module employs two kinds of interface connection, 51-pin connector is used for the module
electronics and 14-pin connector is used for the integral backlight system.
3-2-1. LCD Module
- LCD Connector(CN1): FI-R51S-HF(manufactured by JAE) or compatible
Refer to below and next Page table
- Mating Connector : FI-R51HL(JAE) or compatible
Table 4. MODULE CONNECTOR(CN1) PIN CONFIGURATION
No Symbol Description No Symbol Description
1 NC No Connection (Note 4) 27 NC No Connection
2 NC No Connection (Note 4) 28 R2AN SECOND LVDS Receiver Signal (A-)
3 NC No Connection (Note 4) 29 R2AP SECOND LVDS Receiver Signal (A+)
4 NC No Connection (Note 4) 30 R2BN SECOND LVDS Receiver Signal (B-)
5 NC No Connection (Note 4) 31 R2BP SECOND LVDS Receiver Signal (B+)
6 NC No Connection (Note 4) 32 R2CN SECOND LVDS Receiver Signal (C-)
7 LVDS Select `H' =JEIDA , `L' or NC = VESA 33 R2CP SECOND LVDS Receiver Signal (C+)
8 ExtVBR-B External PWM (from System) 34 GND Ground
9 NC No Connection (Note 4) 35 R2CLKN SECOND LVDS Receiver Clock Signal(-)
10 OPC/TM Enable `H' = Enable , `L' or NC = Disable 36 R2CLKP SECOND LVDS Receiver Clock Signal(+)
11 GND Ground 37 GND Ground
12 R1AN FIRST LVDS Receiver Signal (A-) 38 R2DN SECOND LVDS Receiver Signal (D-)
13 R1AP FIRST LVDS Receiver Signal (A+) 39 R2DP SECOND LVDS Receiver Signal (D+)
14 R1BN FIRST LVDS Receiver Signal (B-) 40 NC No Connection
15 R1BP FIRST LVDS Receiver Signal (B+) 41 NC No Connection
16 R1CN FIRST LVDS Receiver Signal (C-) 42 NC or GND No Connection or Ground
17 R1CP FIRST LVDS Receiver Signal (C+) 43 NC or GND No Connection or Ground
18 GND Ground 44 GND Ground
19 R1CLKN FIRST LVDS Receiver Clock Signal(-) 45 GND Ground
20 R1CLKP FIRST LVDS Receiver Clock Signal(+) 46 GND Ground
21 GND Ground 47 NC No connection
22 R1DN FIRST LVDS Receiver Signal (D-) 48 VLCD Power Supply +12.0V
23 R1DP FIRST LVDS Receiver Signal (D+) 49 VLCD Power Supply +12.0V
24 NC No Connection 50 VLCD Power Supply +12.0V
25 NC No Connection 51 VLCD Power Supply +12.0V
26 NC or GND No Connection or Ground - - -
Note 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. #1~#6 & #9 NC (No Connection): These pins are used only for LGD (Do not connect)
5. Specific pins(pin No. #10) are used for OPC function of the LCD module.
If not used, these pins are no connection. (Please see the Appendix VI for more information.)
6. 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).
Ver. 0.3 8 /36
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LC470EUN
Product Specification
3-2-2. Backlight Module
Master
-LED Driver Connector
: 20022WR - H14B1(Yeonho) or Equivalent
- Mating Connector
: 20022HS - 14B2 or Equivalent
Table 5. LED DRIVER CONNECTOR PIN CONFIGURATION
Pin No Symbol Description Note
1 VBL Power Supply +24.0V
2 VBL Power Supply +24.0V
3 VBL Power Supply +24.0V
4 VBL Power Supply +24.0V
5 VBL Power Supply +24.0V
6 GND Backlight Ground
7 GND Backlight Ground
8 GND Backlight Ground 1
9 GND Backlight Ground
10 GND Backlight Ground
11 Status Back Light Status 2
12 VON/OFF Backlight ON/OFF control 3
13 NC Don't care
14 NC Don't care
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. The impedance of pin #12 is over 50 [K ].
Rear view of LCM
PCB
1 14
1 14
...
...
Ver. 0.3 9 /36
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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 (DE Only Mode)
ITEM Symbol Min Typ Max Unit Note
Display
tHV 960 960 960 tCLK 1920 / 2
Period
Horizontal
Blank tHB 100 140 240 tCLK 1
Total tHP 1060 1100 1200 tCLK
Display
tVV 1080 1080 1080 Lines
Period
20 45 69
Vertical Blank tVB Lines 1
(228) (270) (300)
1100 1125 1149
Total tVP Lines
(1308) (1350) (1380)
ITEM Symbol Min Typ Max Unit Note
DCLK fCLK 63.00 74.25 78.00 MHz
Horizontal fH 57.3 67.5 70 KHz 2
Frequency
2
57 60 63
Vertical fV Hz NTSC : 57~63Hz
(47) (50) (53)
(PAL : 47~53Hz)
Note: 1. The input of HSYNC & VSYNC signal does not have an effect on normal operation (DE Only Mode).
If you use spread spectrum of EMI, add some additional clock to minimum value for clock margin.
2. The performance of the electro-optical characteristics may be influenced by variance of the vertical
refresh rate and the horizontal frequency
Timing should be set based on clock frequency.
Ver. 0.3 10 /36
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3-4. LVDS Signal Specification
3-4-1. LVDS Input Signal Timing Diagram
0.7VDD
DE, Data
0.3VDD
tCLK
0.5 VDD
DCLK
Valid data
First data Invalid data Pixel 0,0 Pixel 2,0 Invalid data
Valid data
Second data Invalid data Pixel 1,0 Pixel 3,0 Invalid data
DE(Data Enable)
tHV
tHP
1 1080
DE(Data Enable)
tVV
tVP
Ver. 0.3 11 /36
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3-4-2. LVDS Input Signal Characteristics
1) DC Specification
LVDS -
LVDS +
V CM V IN _ MAX V IN _ MIN
# V CM = {( LVDS +) + ( LVDS - )} /2
0V
Description Symbol Min Max Unit Note
LVDS Common mode Voltage VCM 1.0 1.5 V -
LVDS Input Voltage Range VIN 0.7 1.8 V -
Change in common mode Voltage VCM - 250 mV -
2) AC Specification
Tclk
LVDS Clock
A
LVDS Data
( F clk = 1 /T clk )
tSKEW tSKEW
A
Tclk
LVDS 1'st Clock 80%
LVDS 2nd / 3rd / 4th Clock
20%
tRF
tSKEW_min tSKEW_max
Description Symbol Min Max Unit Note
High Threshold VTH 100 300 mV
LVDS Differential Voltage 3
Low Threshold VTL -300 -100 mV
LVDS Clock to Data Skew tSKEW - |(0.25*Tclk)/7| ps -
LVDS Clock/DATA Rising/Falling time tRF 260 |(0.3*Tclk)/7| ps 2
Effective time of LVDS teff | 360| - ps -
LVDS Clock to Clock Skew (Even to Odd) tSKEW_EO - |1/7* Tclk| ps -
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
Ver. 0.3 12 /36
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360ps
0.5tui tui
V+
data
VTH
Vcm
VTL
V-
360ps
data
teff
V+ tui : Unit Interval
clk
Vcm
V-
clk
Ver. 0.3 13 /36
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3-5. Color Data Reference
The brightness of each primary color(red,green,blue) is based on the 8bit 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.
Table 7. COLOR DATA REFERENCE
Input Color Data
RED GREEN BLUE
Color MSB LSB MSB LSB MSB LSB
R7 R6 R5 R4 R3 R2 R1 R0 G7 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) 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) 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) 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. 0.3 14 /36
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3-6. Power Sequence
3-6-1. LCD Driving circuit
90% 90%
Power Supply For LCD
VLCD 10% 10% 10%
0V
T8
T1
T5
T2
Valid Data Vcm : LVDS Common mode Voltage
30%
Interface Signal (Tx_clock) 0V
100% T3 T4
T6
User Control Signal
(LVDS_select, OPC Enable)
Power for LED T7 LED ON
Table 8. POWER SEQUENCE
Value
Parameter Unit Notes
Min Typ Max
T1 0.5 - 20 ms 1
T2 0 - - ms 2
T3 200 - - ms 3
T4 200 - - ms 3
T5 1.0 - - s 4
T6 - - T2 ms 5
T7 0.5 - - s 6
T8 100 - - ms 7
1. Even though T1 is over the specified value, there is no problem if I2T spec of fuse is satisfied.
Note : 2. If T2 is satisfied with specification after removing LVDS Cable, there is no problem.
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. T5 should be measured after the Module has been fully discharged between power off and on period.
5. 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.
6. If there is no abnormal display, no problem.
7. It is recommendation specification that T8 has to be 100ms as a minimum value.
Please avoid floating state of interface signal at invalid period.
When the power supply for LCD (VLCD) is off, be sure to pull down the valid and invalid data to 0V.
Ver. 0.3 15 /36
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3-6-2. Sequence for LED Driver
Power Supply For LED Driver
24V (typ.)
90% 90%
VBL
10%
0V
T1 T2 T3
VON/OFF
LED ON
ExtVBR-B
T4 T6
3-6-3. Dip condition for LED Driver
T5
VBL : 24V
VBL(Typ.) x 0.8
0V
Table 9. Power Sequence for LED Driver
Values
Parameter Units Remarks
Min Typ Max
T1 20 - - ms 1
T2 500 - - ms
T3 10 - - ms
T4 0 - - ms
T5 - - 10 ms VBL(Typ) x 0.8
T6 500 - - ms 2
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.
2. In T6 section, ExtVBR-B should be sustained from 5% to 100% .
Ver. 0.3 16 /36
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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 50cm from the LCD surface at a viewing angle of ) and T equal to 0 .
FIG. 1 shows additional information concerning the measurement equipment and method.
Optical Stage(x,y) LCD Module Pritchard 880 or
equivalent
50cm
FIG. 1 Optical Characteristic Measurement Equipment and Method
Ta= 25 2 C, VLCD=12.0V, fV=60Hz, Dclk=74.25MHz,
Table 10. OPTICAL CHARACTERISTICS EXTVBR-B =100%
Value
Parameter Symbol Unit Note
Min Typ Max
Contrast Ratio CR 1000 1400 - 1
290 360 -
Surface Luminance, white LWH cd/m2 2
110 135
Luminance Variation G WHITE 5P - - 1.3 3
Gray-to-Gray G to G - TBD - ms 4
Response Time
Uniformity G G TO G - - 1 5
Rx TBD
RED
Ry TBD
Gx TBD
GREEN
Color Coordinates Gy Typ TBD Typ
[CIE1931] Bx -0.03 TBD +0.03
BLUE
By TBD
Wx 0.279
WHITE
Wy 0.292
Color Temperature 10,000 K
Color Gamut 68 %
Viewing Angle (CR>10)
x axis, right(I=0 ) Tr 89 - -
2D x axis, left (I=180 ) Tl 89 - -
degree 6
Viewin (CR>10) y axis, up (I=90 ) Tu 89 - -
g Angle y axis, down (I=270 ) Td 89 - -
3D Tu (y axis)
up + down 10 10 7
(CT 10%) +Td (y axis)
Gray Scale - - - 8
Ver. 0.3 17 /36
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Note : 1. Contrast Ratio(CR) is defined mathematically as :
Surface Luminance with all white pixels
Contrast Ratio =
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 , G WHITE is defined as :
G 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 any gray to white (Rise Time, TrR)
and from any gray to black (Decay time, TrD). For additional information see the FIG. 3.
G to GBW Spec stands for average value of all measured points.
Photo Detector : RD-80S / Field : 2
5. G to G is Variation of Gray to Gray response time composing a picture
(Xi- u)2 Xi = Individual Data
G to G ( ) = u = Data average
N
N : The number of Data
6. 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 module surface. For more information, see the FIG. 4.
7. Gray scale specification
Gamma Value is approximately 2.2. For more information, see the Table 11
8. 3D performance specification is expressed by 3D luminance and 3D viewing angle.
Table 11. GRAY SCALE SPECIFICATION
Gray Level Luminance [%] (Typ)
L0 TBD
L15 0.27
L31 1.04
L47 2.49
L63 4.68
L79 7.66
L95 11.5
L111 16.1
L127 21.6
L143 28.1
L159 35.4
L175 43.7
L191 53.0
L207 63.2
L223 74.5
L239 86.7
L255 100
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Measuring point for surface luminance & measuring point for luminance variation.
H
A
V
B
A : H / 4 mm
B : V / 4 mm
@ H,V : Active Area
FIG. 2 5 Points for Luminance Measure
Response time is defined as the following figure and shall be measured by switching the input signal for
"Gray(N)" and "Black or White".
Tr Tf
100
90
Optical
Response
10
Gray(N) White Gray(N) Black
0
N = 0(Black)~255(White)
FIG. 3 Response Time
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Dimension of viewing angle range
Normal
E Y
I = 90 q , Up
I = 180 q , Left
T
I
I = 0 q , Right
I = 270 q , Down
FIG. 4 Viewing Angle
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2 7 3
LMS
LW-RW LB-RW 6 1 8
Right or left eyeglass
4 9 5 3D display ( Circular polarizer )
LW-RB LB-RB
(b) Measurement
(a) Test pattern image position (c) Setup
< Figure 6. Measurement configuration>
Luminance
T
Lum( LE or RE, test pattern, number )
Measurement through measurement
Left or Right eyeglass position
< Figure 7. Positioning eyeglass > < Figure 8. notation of luminance measurement >
In order to measure 3D luminance, 3D crosstalk and 3D viewing angle, it need to be prepared as below;
1) Measurement configuration
4-Test pattern images. Refer to FIG 8.
-. LW-RW : White for left and right eye
-. LW-RB : White for left eye and Black for right eye
-. LB-RW : Black for left eye and white for right eye
-. LB-RB : Black for left eye and right eye
Image files where black and white lines are displayed on even or odd lines.
Luminance measurement system (LMS) with narrow FOV (field of view) is used. Refer to FIG 1.
2) Positioning Eyeglass (refer to appendix-VII for standard specification of eyeglass)
Find angle of minimum transmittance.
This value would be provided beforehand or measured by the following steps;
(i) Test image (LB-RW) is displayed.
(ii) Left eyeglass are placed in front of LMS and luminance is measured,
rotating right eyeglass such as FIG 7. The notation for luminance measurement is "Lum(LE, LB-RW,1)".
(iii) Find the angle where luminance is minimum.
* Following measurements should be performed at the angle of minimum transmittance of eyeglass.
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3) Measurement of 3D luminance
(i) Test image ( LW-RW ) is displayed.
(ii) Left or right eyeglass are placed in front of LMS successively and
luminance is measured at center 1 point where the notation for luminance measurement is
"Lum(LE, LW-RW,1)" or "Lum(RE, LW-RW,1).
4) Measurement of 3D crosstalk
(i) Test image ( LB-RW, LW-RB and LB-RB ) is displayed.
(ii) Ri