Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1993-02-23
1995-08-15
Chan, Wing F.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345108, G09G 334
Patent
active
054423740
ABSTRACT:
A color display has a transparent cover glass having a color stripe filter; a translucent data film located in proximity to a face of the color stripe filter to overlap and display image information; a writing device for writing the information to the data film; an erasing device for erasing the written information from the data film; a writing-erasing controller for controlling operations of the writing and erasing devices; a winder for selectively feeding the data film in normal and reverse directions by forming the data film in a web shape, and winding the data film; a controller for controlling an operation of the winder; and an illuminating device for visualizing these information toward a viewer. In this color display, an image written to the data film can be completely erased rapidly and it is possible to obtain an image having a high quality and a very preferable contrast without any shift in image color. Further, data films can be efficiently exchanged and the color display has a simplified structure and is cheaply manufactured.
REFERENCES:
patent: 2180908 (1939-11-01), Nevinger
patent: 4839731 (1989-06-01), Saka
patent: 5059000 (1991-10-01), Kaneko
Chan Wing F.
Oh Minsun
Ricoh & Company, Ltd.
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