JPS55943A - Display unit - Google Patents

Display unit

Info

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
Application number
JP7395578A
Other languages
Japanese (ja)
Other versions
JPS587999B2 (en
Inventor
Koji Usagawa
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.)
PABETSUKU DENSHI KAIHATSU KK
Original Assignee
PABETSUKU DENSHI KAIHATSU KK
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 PABETSUKU DENSHI KAIHATSU KK filed Critical PABETSUKU DENSHI KAIHATSU KK
Priority to JP53073955A priority Critical patent/JPS587999B2/en
Publication of JPS55943A publication Critical patent/JPS55943A/en
Publication of JPS587999B2 publication Critical patent/JPS587999B2/en
Expired legal-status Critical Current

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
JP53073955A 1978-06-19 1978-06-19 display device Expired JPS587999B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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