JPS5465431A - Screen control system for display unit - Google Patents
Screen control system for display unitInfo
- Publication number
- JPS5465431A JPS5465431A JP13155877A JP13155877A JPS5465431A JP S5465431 A JPS5465431 A JP S5465431A JP 13155877 A JP13155877 A JP 13155877A JP 13155877 A JP13155877 A JP 13155877A JP S5465431 A JPS5465431 A JP S5465431A
- Authority
- JP
- Japan
- Prior art keywords
- display
- memory
- screen
- control information
- control
- 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
Abstract
PURPOSE: To ensure the scrawling function of the display screen or the screen switching function by securing a free control to the display state of the graphic pattern in order to enable the screen display for an optional area of the graphic code memory.
CONSTITUTION: The following unnits are provided: screen ememory 5 containing the control information and the control information flag concerning the character code and display; character generator 7 which generates the character pattern based on the character code given from memory 5; and control information register 9 which stores the control information read from memory 5. Furthermore, control register 14 which sets the control information at the area where the display information is outside the display area when part of memory 5 is displayed is added, along with selector circuit 15 and display control circuit 10. Then such constitution is secured that the contents of register 9 and 14 may be selected via circuit 15. Thus, the scrawling function of the display screen or the screen switching function is provided in order to obtain the display of an optional area in memory 5.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13155877A JPS5852230B2 (en) | 1977-11-04 | 1977-11-04 | Display device screen control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13155877A JPS5852230B2 (en) | 1977-11-04 | 1977-11-04 | Display device screen control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5465431A true JPS5465431A (en) | 1979-05-26 |
JPS5852230B2 JPS5852230B2 (en) | 1983-11-21 |
Family
ID=15060865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13155877A Expired JPS5852230B2 (en) | 1977-11-04 | 1977-11-04 | Display device screen control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5852230B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58107583A (en) * | 1981-12-22 | 1983-06-27 | 沖電気工業株式会社 | Display unit |
-
1977
- 1977-11-04 JP JP13155877A patent/JPS5852230B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58107583A (en) * | 1981-12-22 | 1983-06-27 | 沖電気工業株式会社 | Display unit |
JPH0120750B2 (en) * | 1981-12-22 | 1989-04-18 | Oki Electric Ind Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5852230B2 (en) | 1983-11-21 |
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