JPS6432289A - Projection type color display device - Google Patents
Projection type color display deviceInfo
- Publication number
- JPS6432289A JPS6432289A JP18821087A JP18821087A JPS6432289A JP S6432289 A JPS6432289 A JP S6432289A JP 18821087 A JP18821087 A JP 18821087A JP 18821087 A JP18821087 A JP 18821087A JP S6432289 A JPS6432289 A JP S6432289A
- Authority
- JP
- Japan
- Prior art keywords
- light
- color
- image
- red
- blue
- 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
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE: To display an image whose color reproducibility is high and whose image quality is high by improving the color purity of each color by providing the filters of the three colors of a narrow band at the insides of the respective optical paths of red light, blue light and green light. CONSTITUTION: The white light of a light source 1 is made as parallel light by a lens 3, and the red light and the blue light are reflected by red and blue cruciform dichroic mirrors 5 and 6 and the green light is transmitted, and it is made incident on liquid crystal light valves 9R, 9B and 9G through the filters 8R, 8B and 8G of three primary colors. Signal voltage for each color is applied and the transmissivity of the light valve for each color is controlled so as to form an image for the each color, and it is synthesized by a dichroic prism 10 and is projected on a screen by the lens 13. The white balance of the image is easily controlled by making image display bright using the filter 8 of the narrow band and changing the transmissivity of the filter in accordance with the spectroscopic characteristics of the light source, and the color purity and saturation are enhanced, so that the reproducibility and expressivity of the color are improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18821087A JPS6432289A (en) | 1987-07-28 | 1987-07-28 | Projection type color display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18821087A JPS6432289A (en) | 1987-07-28 | 1987-07-28 | Projection type color display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6432289A true JPS6432289A (en) | 1989-02-02 |
Family
ID=16219695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18821087A Pending JPS6432289A (en) | 1987-07-28 | 1987-07-28 | Projection type color display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6432289A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02293732A (en) * | 1989-05-08 | 1990-12-04 | Matsushita Electric Ind Co Ltd | Projection type display device |
| WO1996020424A1 (en) * | 1994-12-27 | 1996-07-04 | Seiko Epson Corporation | Projection type display device |
| JP2005258163A (en) * | 2004-03-12 | 2005-09-22 | Nec Viewtechnology Ltd | Projector apparatus |
| WO2005103805A1 (en) * | 2004-04-23 | 2005-11-03 | Koninklijke Philips Electronics N.V. | Lcd device |
| JP2008514994A (en) * | 2004-09-27 | 2008-05-08 | アイディーシー、エルエルシー | Color filters for manipulating colors on the display |
-
1987
- 1987-07-28 JP JP18821087A patent/JPS6432289A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02293732A (en) * | 1989-05-08 | 1990-12-04 | Matsushita Electric Ind Co Ltd | Projection type display device |
| WO1996020424A1 (en) * | 1994-12-27 | 1996-07-04 | Seiko Epson Corporation | Projection type display device |
| JP2005258163A (en) * | 2004-03-12 | 2005-09-22 | Nec Viewtechnology Ltd | Projector apparatus |
| WO2005103805A1 (en) * | 2004-04-23 | 2005-11-03 | Koninklijke Philips Electronics N.V. | Lcd device |
| JP2008514994A (en) * | 2004-09-27 | 2008-05-08 | アイディーシー、エルエルシー | Color filters for manipulating colors on the display |
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