JPS55943A - Display unit - Google Patents
Display unitInfo
- Publication number
- JPS55943A JPS55943A JP7395578A JP7395578A JPS55943A JP S55943 A JPS55943 A JP S55943A JP 7395578 A JP7395578 A JP 7395578A JP 7395578 A JP7395578 A JP 7395578A JP S55943 A JPS55943 A JP S55943A
- Authority
- JP
- Japan
- Prior art keywords
- font
- memory
- memories
- display
- color
- 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)
Abstract
PURPOSE: To display a pattern, etc., in any color at a high speed by using a font memory in a time-division mode by providing one font memory block with several page buffer memories.
CONSTITUTION: The output pulse of timing generating part 13 is supplied to page buffer memories 12a to 12c, where time-division access is attained, so that addresses will be sent to memory 11 where the font of a pattern, etc., in stored. Memory 11 outputs signals equivalent to those addresses in parallel according to the order of red, green and blue and shift registers 14 to 16 receive them, shift them by the same shift pulse and converts parallel signals into series signals, thereby displaying them on color CRT via output terminals 19 to 21. Setting a ratio of the numbers of stages of registers 14, 15 and 16 to 5:4:3 allows series signals of the same font address to appear at their output terminals at the same time, so that high-speed display will be possible. Since memories 12a to 12c are independent one another, various-color display on a picture-element dot unit is possible. In addition, memories only require small capacity.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53073955A JPS587999B2 (en) | 1978-06-19 | 1978-06-19 | display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53073955A JPS587999B2 (en) | 1978-06-19 | 1978-06-19 | display device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55943A true JPS55943A (en) | 1980-01-07 |
JPS587999B2 JPS587999B2 (en) | 1983-02-14 |
Family
ID=13533002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53073955A Expired JPS587999B2 (en) | 1978-06-19 | 1978-06-19 | display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS587999B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6012578A (en) * | 1983-07-01 | 1985-01-22 | 株式会社日立製作所 | Display controller |
JPS62280796A (en) * | 1986-05-21 | 1987-12-05 | デイジタル・エクウイプメント・コ−ポレイシヨン | Multiport memory for pixel information and source unit |
-
1978
- 1978-06-19 JP JP53073955A patent/JPS587999B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6012578A (en) * | 1983-07-01 | 1985-01-22 | 株式会社日立製作所 | Display controller |
JPS62280796A (en) * | 1986-05-21 | 1987-12-05 | デイジタル・エクウイプメント・コ−ポレイシヨン | Multiport memory for pixel information and source unit |
Also Published As
Publication number | Publication date |
---|---|
JPS587999B2 (en) | 1983-02-14 |
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