JPS55936A - Color display unit - Google Patents
Color display unitInfo
- Publication number
- JPS55936A JPS55936A JP7377778A JP7377778A JPS55936A JP S55936 A JPS55936 A JP S55936A JP 7377778 A JP7377778 A JP 7377778A JP 7377778 A JP7377778 A JP 7377778A JP S55936 A JPS55936 A JP S55936A
- Authority
- JP
- Japan
- Prior art keywords
- inputted
- signal
- synchronizing signal
- vertical
- display
- 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
- Digital Computer Display Output (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To make small characters, etc., on a display screen easy to see, by horizontally shifting an electron beam spot by a fixed distance at a cycle twice the vertical one in the color Braun tube of the display unit of a computer, etc.
CONSTITUTION: A horizontal synchronizing signal inputted to terminal 9 and a signal obtained by delaying the signal by delay circuit 15 are alternated by a signal, obtained by dividing a vertical synchronizing signal inputted to terminal 10 into a double period by divider circuit 13, before being inputted to horizontal deflection circuit 11. As a result, when the delayed synchronizing signal is inputted, the entire screen shifts horizontally to the right and determining the delay time with this movement nearly a half the shadow mask pitch causes alternate states (a) and (b) to alternate on the screen at every vertical period when the electron beam diameter is equal to the mask pitch, equalizing the luminous areas of red, green and blue in ratio on the average. As a result, variation in color is much less than conventional one as to white display and even fine display characters can be made easy to see.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7377778A JPS55936A (en) | 1978-06-20 | 1978-06-20 | Color display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7377778A JPS55936A (en) | 1978-06-20 | 1978-06-20 | Color display unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55936A true JPS55936A (en) | 1980-01-07 |
JPS613429B2 JPS613429B2 (en) | 1986-02-01 |
Family
ID=13527963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7377778A Granted JPS55936A (en) | 1978-06-20 | 1978-06-20 | Color display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55936A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63275284A (en) * | 1987-05-07 | 1988-11-11 | Hitachi Ltd | Crt display device |
JPH0310647U (en) * | 1989-06-15 | 1991-01-31 | ||
JPH04218111A (en) * | 1991-01-11 | 1992-08-07 | Toshiba Corp | Rice cooker |
-
1978
- 1978-06-20 JP JP7377778A patent/JPS55936A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63275284A (en) * | 1987-05-07 | 1988-11-11 | Hitachi Ltd | Crt display device |
JPH0310647U (en) * | 1989-06-15 | 1991-01-31 | ||
JPH04218111A (en) * | 1991-01-11 | 1992-08-07 | Toshiba Corp | Rice cooker |
Also Published As
Publication number | Publication date |
---|---|
JPS613429B2 (en) | 1986-02-01 |
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