6.4 Fully Digital D-ILATM for Consumer Applications Shigeo Shimizu, Yutaka Ochi, Atsushi Nakano Technology Development Division Victor Company of Japan, Limited
Matthew Bone Aurora Systems Inc
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Contents •Introduction •Driving Principle •Performance of Digital D-ILA •RPTV •Summary
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D-ILA device line-up
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D-ILA Device Line-up and Applications 1.7″4K2K D-ILA Devices 1.7″4K2K
1.3″QXGA 1.3″QXGA
0.9″SXGA 0.9″SXGA DLA-150CL
0.7″SXGA+ 0.7″SXGA+
4K2K-PJ
Ultra High End
DLA-QX1
0.8″FHD 0.8″FHD
Digital Cinema High End Post Production Simulation
0.7SXGA+
Mid range Home Theater 0.7″720P 0.7″720P Business Presentation RP-TV Basic
DLA-SX21
Personal Presentation
Front-PJ
Rear-Box
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Applications
Home Entertainment
Rear-PJ
DLA-HX1
PR-TV
Front-PJ
16:9 4
RPTV market forecast by display technology
LCOS
LCD
CRT
DLP
Data: 2004 iSuppli/Stanford Resources S.Shimizu May 25, 2004 SID Conference
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The Specification of Digital D-ILA
Device diagonal
0.70 in.
Driving method
Digital (PWM)
Number of Pixels Aspect ratio
16:9
Pixel Pitch
12 micron
Fill factor
93 %
Contrast (device only)
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1280 x 720
5000:1
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Digital driving Principle (1) Digital Imager Pixel Architecture
ITO Pixel V0 V1
master
slave
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Applied Voltage to LC VITO - V0 VITO - V1
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Digital driving Principle (2) Video Signal
Controller
Frame Buffer
Horizontal driver
V1 V0
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Vertical driver
LUT
Display Area (Pixels)
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Digital driving Principle (3)
Subframe-40
Subframe-40
2^24 possible arrangements 1 frame (=16.7msec)
24 bit-plane - 40 Subframes Each Subframe length is freely adjustable.
Subframe-1 1280 x 720 Addressing
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Subframe-1 Liquid Crystal Driving
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Performance of Digital D-ILA
1. 2. 3. 4. 5.
Efficiency Gray Scale Contrast Ratio Moving Picture Stability
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1. Efficiency Simulated Output Light 1 0.9
Dark Gray State Gray State Bright State
0.8
Output light
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0
20
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40 60 time (msec)
80
100
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2. Gray Scale Electro-Optical Curve at Digital Driving 1 0.9 0.8
Output Light
0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0
200
400
600
800
1000
1200
Gray Level (Selected Pulse arrangements)
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3. Contrast Ratio (1) Contrast ratio without compensation 90
30
120
60 700
20 0 10
00 960
0 00 80 35
150
0.1
0
30 20 100 0 0 96000 2500 30 0 00 10 00 2 50 00 15 00 0 0 2000 700 0 400 200
500
250
30
300 500 00 0 8 00 1500 1 4000 4500
10
400 0 50
00
40 0
350 230 5000 00
0 00 7010 500
180
200 100 400 700 300 6000 0 1500 90015 800 000 3000 2000 4000 00 125000000 600 0025 100700080 300 40 00 0 00 2 0 0 3 10 4050 900 540000 500
00 25
100 0 00 200 105000 45 3007500 0 0 2 0 0000000 940105186000 44500 200 00 0 0 00 0 500 2105000 3050000 30 9000000000 325530810072150 105000 3 0 0 5 700 0 0 400 80006900000 60809000 3000 200 0 300 100 40 0
00 25
25 10070 350 00 150200000 8 0 0 20 6 0 30 00 10 0 0
330
000 00 954000 40 0 8690000 300 100
10 7 0000
4500 5000 2000 3500 1500 0 50
0 20
210
0
30 00
300
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3. Contrast Ratio (2) Contrast Ratio with an optical compensation 7000 Blue Channnel Contrast Green Channel Contrast
6000
Contrast Ratio
5000
4000
3000
2000
1000
0 420
440
460
480
500
520
540
560
580
600
Wave length (nm)
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4. Moving Picture Response Performance 0.70
1 frame
1 frame
1 frame
1 frame
0.60
Output light
0.50
0.40
0.30
0.20
0.10
0.00 0
10
20
30
40
50
60
time (msec)
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5. Stability(1) Electro-Optical Curve at Various Temperatures 1 0.9 0.8
Vbright
Output light
0.7 0.6 0.5
22.0degreeC 28.5degreeC
0.4
37.2degreeC 39.8degreeC
0.3
40.3degreeC
Vdark
0.2
49.7degreeC 60.1degreeC 69.8degreeC
0.1 0 0
1
2
3
4
5
6
7
8
9
10
Applied Voltage (V)
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5. Stability(2) N3A
Simulated Picture at various Temperatures
58.3 degree C
19.1 degree C 40.1 degree C
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5. Stability(3) N7A
Simulated Picture at various Temperatures
58.3 degree C
19.1 degree C 40.1 degree C
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5. Stability(4) Acceleration test with 15W/cm2 irradiation (Xe lamp)
100
VHR(%)
80 60 40 20 D-ILA alignment layer
organic alignment layer
0 1
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100 1000 Exposure time (hours)
10000
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Rear Projection TV model
Bright
500cd/m2
5lm/W
● 3 Panel System ● High Efficiency Optics
High CR
> 1000:1
● VAN Cell
High Picture Quality ● DIST (Digital Image Scaling Technology) ● JVC’ s Color Management Technology Concept model in the development stage.
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Summary ● Digital Driving
- High Productivity - Low Cost System ● VAN Cell
- High Efficiency - High Contrast - Stable ● Combination of Digital Driving and VAN Cell - Suitable Performance for RPTV
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Thank you!
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Additional Information
More detailed Information about RPTV will be delivered. JVC 2004 Products Announcement (HD Universe) End of June NY
Contact: Terry Shea (JVC Company of America) Phone: 973-317-5000 email:
[email protected]
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