Display control device

Details Display control device Display control device

1994-10-24

1998-05-26

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345124, G09G 534

Patent

active

057573530

ABSTRACT:
CPU writes display character codes corresponding to a liquid crystal display position to display RAM to cause any desired character to be read from character generator ROM and to be displayed. There are provided a scroll display line designation register for designating a desired display line to be scrolled and a scroll dot quantity register for designating the scroll quantity in pixels. A scroll register supplies, to a segment shift register, character data which is delayed by the designated number of dots with respect to the character data on the designated display line and causes the display line to be displayed.

REFERENCES:
patent: 3903510 (1975-09-01), Zobel
patent: 4386410 (1983-05-01), Pandya et al.
patent: 4491834 (1985-01-01), Oguchi
patent: 4803478 (1989-02-01), Olsen
patent: 4873514 (1989-10-01), Nakagawa et al.
patent: 4922238 (1990-05-01), Aoki et al.
patent: 5093736 (1992-03-01), Iijima
patent: 5477240 (1995-12-01), Huebner et al.
Microcomputer Handbook, published by Ohm Company, Dec. 25, 1985, p. 171. (English translation provided herewith).

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