JPS5544626A - Crt display device - Google Patents

Crt display device

Info

Publication number
JPS5544626A
JPS5544626A JP11768578A JP11768578A JPS5544626A JP S5544626 A JPS5544626 A JP S5544626A JP 11768578 A JP11768578 A JP 11768578A JP 11768578 A JP11768578 A JP 11768578A JP S5544626 A JPS5544626 A JP S5544626A
Authority
JP
Japan
Prior art keywords
roll
crt
display
display screen
screen
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
JP11768578A
Other languages
Japanese (ja)
Inventor
Haruo Muto
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 JP11768578A priority Critical patent/JPS5544626A/en
Publication of JPS5544626A publication Critical patent/JPS5544626A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To ensure the partial roll-up and roll-down in a high efficiency for the display screen of the CRT by combining the roll-up/roll-down functions of the entire screen composed of the hardware and the software.
CONSTITUTION: To carry out the roll-up or roll-down for the screen of the rest area without altering the display of a fixed line number at the upper or lower part of the CRT display screen, the new address is written in display start address register 6 from CPU8 via display start address register interface part 7 to give first the roll-up or roll-down to the entire display screen of the CRT. Then the character row information at the part of the line where no display alteration is given is sent to the CRT from CPU8 with the character row information to be displayed at the line which is made vacant by the roll-up or roll-down. As a result, a higher speed can be ensured for the partial roll-up or roll-down on the CRT display screen than just through the software.
COPYRIGHT: (C)1980,JPO&Japio
JP11768578A 1978-09-25 1978-09-25 Crt display device Pending JPS5544626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11768578A JPS5544626A (en) 1978-09-25 1978-09-25 Crt display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11768578A JPS5544626A (en) 1978-09-25 1978-09-25 Crt display device

Publications (1)

Publication Number Publication Date
JPS5544626A true JPS5544626A (en) 1980-03-29

Family

ID=14717750

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11768578A Pending JPS5544626A (en) 1978-09-25 1978-09-25 Crt display device

Country Status (1)

Country Link
JP (1) JPS5544626A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60170892A (en) * 1984-02-16 1985-09-04 株式会社日立製作所 Display unit
US4903013A (en) * 1987-01-07 1990-02-20 Brother Kogyo Kabushiki Kaisha Display system for plural display areas on one screen
JPH06308933A (en) * 1993-04-21 1994-11-04 Japan Radio Co Ltd Picture display device, character display device and screen scrolling method
US5949442A (en) * 1983-10-31 1999-09-07 Canon Kabushiki Kaisha Display device in which display information is smoothly scrolled

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5949442A (en) * 1983-10-31 1999-09-07 Canon Kabushiki Kaisha Display device in which display information is smoothly scrolled
JPS60170892A (en) * 1984-02-16 1985-09-04 株式会社日立製作所 Display unit
JPH051478B2 (en) * 1984-02-16 1993-01-08 Hitachi Ltd
US4903013A (en) * 1987-01-07 1990-02-20 Brother Kogyo Kabushiki Kaisha Display system for plural display areas on one screen
JPH06308933A (en) * 1993-04-21 1994-11-04 Japan Radio Co Ltd Picture display device, character display device and screen scrolling method

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