JPS6491174A - Display device - Google Patents

Display device

Info

Publication number
JPS6491174A
JPS6491174A JP62248029A JP24802987A JPS6491174A JP S6491174 A JPS6491174 A JP S6491174A JP 62248029 A JP62248029 A JP 62248029A JP 24802987 A JP24802987 A JP 24802987A JP S6491174 A JPS6491174 A JP S6491174A
Authority
JP
Japan
Prior art keywords
cursor
color
plane
overlay
constitution
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
Application number
JP62248029A
Other languages
Japanese (ja)
Inventor
Toshiyuki Kuwana
Seiichi Niino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62248029A priority Critical patent/JPS6491174A/en
Publication of JPS6491174A publication Critical patent/JPS6491174A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Computer Display Output (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE: To easily discriminate a cursor in an optional position on a screen by providing a color plane memory where the display pattern of the cursor is stored and writing and erasing the cursor display pattern in the color plane memory by a cursor control means. CONSTITUTION: An overlay plane 4 which has a storage area corresponding to all picture elements on the screen of a display device 7 is provided independently of a color plane 5, and the cursor pattern is plotted only in the overlay plane 4. By this constitution, contents of the color plane 5 are not changed during cursor movement processing, and it is sufficient if cursor data on the overlay plane 4 is erased and written then. Consequently, the color of the overlay plane can be changed, and it can be set to a color different from that of the color plane. Thus, the cursor is discriminated even if the cursor is moved on graphics of a similar color.
JP62248029A 1987-10-02 1987-10-02 Display device Pending JPS6491174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62248029A JPS6491174A (en) 1987-10-02 1987-10-02 Display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62248029A JPS6491174A (en) 1987-10-02 1987-10-02 Display device

Publications (1)

Publication Number Publication Date
JPS6491174A true JPS6491174A (en) 1989-04-10

Family

ID=17172140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62248029A Pending JPS6491174A (en) 1987-10-02 1987-10-02 Display device

Country Status (1)

Country Link
JP (1) JPS6491174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065187A (en) * 1989-10-19 1991-11-12 Oki Electric Industry Co., Ltd. Image forming system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5065187A (en) * 1989-10-19 1991-11-12 Oki Electric Industry Co., Ltd. Image forming system

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