JPS54146930A - Color crt display device - Google Patents

Color crt display device

Info

Publication number
JPS54146930A
JPS54146930A JP5493678A JP5493678A JPS54146930A JP S54146930 A JPS54146930 A JP S54146930A JP 5493678 A JP5493678 A JP 5493678A JP 5493678 A JP5493678 A JP 5493678A JP S54146930 A JPS54146930 A JP S54146930A
Authority
JP
Japan
Prior art keywords
color
memory
designate
display screen
divided
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
JP5493678A
Other languages
Japanese (ja)
Inventor
Kenichi Mori
Shinichiro Ohora
Tadatoshi Namikawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5493678A priority Critical patent/JPS54146930A/en
Publication of JPS54146930A publication Critical patent/JPS54146930A/en
Pending legal-status Critical Current

Links

Landscapes

  • Video Image Reproduction Devices For Color Tv Systems (AREA)

Abstract

PURPOSE: To reduce the capacity of the refresh memory of a color CRT display device by providing a color designating memory to designate the color of information displayed in each segment when the display screen is divided into plural segments.
CONSTITUTION: As regards refresh memory 1, only one-picture components similar to the refresh memory of a white-and-black CRT are prepared. Color designating memory 2 to designate the color of information (characters, etc.,) displayed in each segment when the display screen is divided into plural segments (for example, 25 lines) is prepared besides this refresh memory 1. When write signal 3, address 4 and color designation signal 5 are sent from a CPU, information to designate colors of respective lines on the display screen divided into plural segments (25 lines) are stored in color designating memory 2. When a read signal is supplied to memory 2, characters, etc., are displayed with the color designated for every line according to memory contents.
COPYRIGHT: (C)1979,JPO&Japio
JP5493678A 1978-05-11 1978-05-11 Color crt display device Pending JPS54146930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5493678A JPS54146930A (en) 1978-05-11 1978-05-11 Color crt display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5493678A JPS54146930A (en) 1978-05-11 1978-05-11 Color crt display device

Publications (1)

Publication Number Publication Date
JPS54146930A true JPS54146930A (en) 1979-11-16

Family

ID=12984508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5493678A Pending JPS54146930A (en) 1978-05-11 1978-05-11 Color crt display device

Country Status (1)

Country Link
JP (1) JPS54146930A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048080A (en) * 1983-08-26 1985-03-15 日本電気株式会社 Image display system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140228A (en) * 1974-04-27 1975-11-10
JPS50142122A (en) * 1974-05-07 1975-11-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140228A (en) * 1974-04-27 1975-11-10
JPS50142122A (en) * 1974-05-07 1975-11-15

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6048080A (en) * 1983-08-26 1985-03-15 日本電気株式会社 Image display system

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