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Projector Technology

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Aspect Ratio. Contrast Ratio. Brightness. Keystone Correction ... Aspect Ratio: ??????????????????????????? ?????????????????? ???? 2 ?????? ??? 4: ... – PowerPoint PPT presentation

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Title: Projector Technology


1
Projector Technology
  • LCD Projector (Liquid Crystal Display)
  • DLP Projector (Digital Light Processing)
  • LCOS Projector (Liquid Crystal on Silicon)

2
LCD Projector Technology
Lens
Light Source
3
Microlens Arrays Extend Performance of
Polysilicon LCDs
Adhesive
Pixel Electrode
Liquid Crystal
Glass With Microlens
Polysilicon Transistor
Silica substrate
Black Matrix
Thin Glass
4
MLA Overview
5
LCD Projector Technology
  • ?????????? LCD Technology
  • ????????????????????????? DLP Projector
  • ??????????????????
  • ?????????????????????????????? Watt ??????????
  • ?????????? LCD Technology
  • ????? Screendoor Effect
  • ???????????????????? (Black Level) ??? contrast
    ratio ?????????? DLP Projector

6
DLP Projector Technology
DLP (Digital Light Processing)
??????????????????????????????? Texas Instruments
?????????????????? DLP ???????????????????????????
? DLP chips ????????????????????
?????????????????????? chips ????????????????????
????? DMD chips ??????????????? ????????????????
color filter ???????????????????? DMD chips
??????????????????? ?????????????????
???????????????????????????? ??????????????? lens
?????????? ????????????????????????? chips
???????????????? ???????? DLP Projector
?????????? ?????????? ????????????????????????????
????????? ???????????????????????????? ??????????
7
Packaged DLPTM Chips
8
DMD Comparison
9
DLP Projector Technology
  • ?????????? DLP Technology
  • ??????????, ?????????? ?????????????????????????
    LCD Projector
  • ?????????? technology ???????????????? ????
    contrast ratio ??? Black Level ?????????? LCD
    Projector
  • ???????????????? LCD Projector
    ????????????????????????????? SVGA ????
  • ?????????? DLP Technology
  • ?? Rainbow Effect (??????????????
    ???????????????)

10
LCOS Projector Technology
11
Technical Specifications
  • Resolution
  • Aspect Ratio
  • Contrast Ratio
  • Brightness
  • Keystone Correction

12
???????????
Brightness ??????????????????????????
?????????????? ANSI lumens ????? ANSI (American
National Standards Institute) ????????????????????
?????????????????????????????????????????????????
???????????????????????? ?????????????????????????
????????????????????????????????
????????????????????????????? Keystone
??????????????????????????????????????????????????
??????????????? ??????????????????????????????????
??????????????????????????? ?????????
??????????????????????????????????????????????????
????????? ??????????????????????????????????????
??????????????????????????????? ????? keystone
?????????? software ??????? ??????????????? DVI
DVI ???????? Digital Visual Interface ??? DVI
????????????????????????????????????????
??????????????????????????????????????????????????
??????????????????????????????? ???????????????
VGA (D-sub 15 pin), Composite Video ???? S-Video
??????????????????????????????????
??????????????????????????????????
?????????????????????????????????????????????????
DVI ????????????? ???????????
13
???????????
- DVI-I Single Link ?????????????? 12 ???
?????????? 4 ??? ?????????????????????????????????
??? ?????????? ???????????????????????????????
1600x1200 ??? 60Hz. - DVI-I Dual Link
?????????????? 24 ??? ?????????? 4 ???
???????????????????????????????????? ??????????
???????????????????????????? 2048x1536.
- DVI-D Single Link ?????????????? 12 ???
?????????????????????????????????????????
??????????????????????????????? 1600x1200 at
60Hz. - DVI-D Dual Link ??????????????
12 ??? ?????????????????????????????????????????
??????????????????????????????? 2048x1536
????????????????? DVI-D ??????????????????
???????????????????????????????????? Interface
???????????????
14
???????????
- M1-DA (EVC or PD)
?????????????? 30 ??? ????????????? 4 ???
??????????????? DVI-I ??? ????????????? M1-DA
???????????? 6 ??????????? ?????????????????
Infocus ??? ????????? OEM ??? Infocus
???????????????????????? 1280x1024 -
DFP (MDR20) ??????? 20 ??? ???????????????????????
?????????????? ?????????????????? 1280x1024
15
???????????
Component Video Component Video
??????????????????????????????????????????????????
????????? ????????????????????????????????????????
? ?????????????????????? RGB ?????????????????????
??????????? ????????????????????
????????????????????????????????? Component video
????????????????????????????????????????? DVD
Player ????????????????????? S-Video
??????????????????????????????????????????????????
?? ?? 4 ?????? 2 ?????????????????????? ?????? 2
??????????????? ????????? S-Video
????????????????????? Component Video
???????????????????? Composite Video Composite
Video Signal ????????????????????????????????????
?????????????????????????? 2 ???????????
????????????????????????????????????? ???, ??,
????????? ????????????????????????
??????????????????????????????
16
Resolution Nomenclature
CGA -640 X 200 EGA - 640 X 350 VGA - 640 X
480 SVGA - 800 X 600 XGA - 1024 X 768 SXGA - 1280
X 1024 UXGA 1600 X 1200
17
Glossary of Term
Full On/Off ????????????????? contrast ratio
???????? ?????????????????????????????????????????
????????????????????? ?????? contrast ratio
????????????? ??????????????? ????????????????????
??????????? ?????? ??????????????? ??? contrast
ratio ??? full on/off ????????????????????????????
?? ?????????? ????????? Aspect Ratio
??????????????????????????? ??????????????????
???? 2 ?????? ??? 43 ????????????????????????????
???????????????? ??????? 169 ????????????????????
???????????????? ?????????????????????????????????
????????????????? ????????????????????? ????
1.801, 1.781 ???????
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