JPS6432291A - Back projection type display device - Google Patents
Back projection type display deviceInfo
- Publication number
- JPS6432291A JPS6432291A JP18915787A JP18915787A JPS6432291A JP S6432291 A JPS6432291 A JP S6432291A JP 18915787 A JP18915787 A JP 18915787A JP 18915787 A JP18915787 A JP 18915787A JP S6432291 A JPS6432291 A JP S6432291A
- Authority
- JP
- Japan
- Prior art keywords
- image
- light
- display device
- type display
- red
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To make accurate registration possible by performing image forming process on the same optical axis by constituting a rear projection type display device of three liquid crystal light valves for image-forming, a dichroic optical system and a mono light source, a mono projection lens and a transmissive screen. CONSTITUTION: Light emitted from the first light source 7 of the projection unit of the rear projection type display device is made incident on the dichroic mirror 8 combined in a cruciform state and of red and blue reflections, and is resolved into the three colors of red, green and blue. The two kinds of the light of the respective colors of red and blue resolved are respectively reflected twice by reflection mirrors 9a, 9b, 9c and 9d and are image-modulated through the liquid crystal light valve 10R and 10B and are made incident on a dichroic prism 11. Green light passing the mirror 8 is image-modulated by the valve 10G and is supplied to the prism 11. Then, an image is constituted on the same optical axis of the prism 11, and is magnified and projected by a projection lens 12, so that the image is projected on the transmissive screen 13.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18915787A JPS6432291A (en) | 1987-07-29 | 1987-07-29 | Back projection type display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18915787A JPS6432291A (en) | 1987-07-29 | 1987-07-29 | Back projection type display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432291A true JPS6432291A (en) | 1989-02-02 |
Family
ID=16236400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18915787A Pending JPS6432291A (en) | 1987-07-29 | 1987-07-29 | Back projection type display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432291A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01128380U (en) * | 1988-02-24 | 1989-09-01 | ||
US4974680A (en) * | 1988-11-14 | 1990-12-04 | Tokyo Electric Co., Ltd. | Sheet-feeding mechanism |
JPH041585U (en) * | 1990-04-13 | 1992-01-08 | ||
US8179245B2 (en) | 2009-08-18 | 2012-05-15 | Ford Global Technologies, Llc | Plug-in vehicle with recharging port having display and lights |
-
1987
- 1987-07-29 JP JP18915787A patent/JPS6432291A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01128380U (en) * | 1988-02-24 | 1989-09-01 | ||
US4974680A (en) * | 1988-11-14 | 1990-12-04 | Tokyo Electric Co., Ltd. | Sheet-feeding mechanism |
JPH041585U (en) * | 1990-04-13 | 1992-01-08 | ||
US8179245B2 (en) | 2009-08-18 | 2012-05-15 | Ford Global Technologies, Llc | Plug-in vehicle with recharging port having display and lights |
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