JPS5525234A - Picture display device - Google Patents
Picture display deviceInfo
- Publication number
- JPS5525234A JPS5525234A JP9759078A JP9759078A JPS5525234A JP S5525234 A JPS5525234 A JP S5525234A JP 9759078 A JP9759078 A JP 9759078A JP 9759078 A JP9759078 A JP 9759078A JP S5525234 A JPS5525234 A JP S5525234A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- projected
- picture
- cathode
- ray tube
- 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.)
- Granted
Links
Landscapes
- Transforming Electric Information Into Light Information (AREA)
Abstract
PURPOSE: To obtain the picture which is longer laterally then the screen of the cathode-ray tube on the screen by securing projection of the over-scan part only in the horizontal direction in case the picture of the cathode-ray tube is magnified on the screen.
CONSTITUTION: In case the picture projected on the screen of cathode-ray tube 1 is projected on screen 4 after magnification through reflector plate 2 and lens 3, an adjustment is given to secure the coincidence between the size of screen 1a of tube 1 and the horizontal and vertical amplitude of the raster, thus turning the over- scan quantity to zero at tube 1. As a result, the area which is not projected on the normal screen can be projected. Then the electric or optical shielding is given to vertical part BL of screen 1a with 9% up and down each (18% in all). Accordingly, the vertical/horizontal ratio is increased up to 5:8 from normal 3:4 on the screen, thus obtaining an impressive and laterally long picture on the screen.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9759078A JPS5525234A (en) | 1978-08-10 | 1978-08-10 | Picture display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9759078A JPS5525234A (en) | 1978-08-10 | 1978-08-10 | Picture display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5525234A true JPS5525234A (en) | 1980-02-22 |
JPS622752B2 JPS622752B2 (en) | 1987-01-21 |
Family
ID=14196444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9759078A Granted JPS5525234A (en) | 1978-08-10 | 1978-08-10 | Picture display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5525234A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6486682A (en) * | 1987-09-28 | 1989-03-31 | Sony Corp | Video projector |
JP2006060562A (en) * | 2004-08-20 | 2006-03-02 | Sony Corp | Display apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5250021U (en) * | 1975-10-06 | 1977-04-09 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5142040A (en) * | 1974-10-09 | 1976-04-09 | Mitsubishi Electric Corp | YOSETSUBUSE IKEISOCHI |
-
1978
- 1978-08-10 JP JP9759078A patent/JPS5525234A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5250021U (en) * | 1975-10-06 | 1977-04-09 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6486682A (en) * | 1987-09-28 | 1989-03-31 | Sony Corp | Video projector |
JP2006060562A (en) * | 2004-08-20 | 2006-03-02 | Sony Corp | Display apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS622752B2 (en) | 1987-01-21 |
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