The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2000
Filed:
Apr. 30, 1997
Itsuo Sasaki, Tokyo, JP;
Yasoji Suzuki, Yokohama, JP;
Hirofumi Kato, Himeji, JP;
Isao Arita, Tokyo, JP;
Toshio Yanagisawa, Hyogo-ken, JP;
Kazuyoshi Yamamoto, Hyogo-ken, JP;
Hiroyoshi Murata, Himeji, JP;
Hiroyuki Hamagawa, Himeji, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A multi-gray level display designed to display multi-gray level images free of flicker or the like, by using a small number of voltages. The display comprises a first gray-level pattern generating circuit 311 for generating a first gray-level pattern which acquires a gray level during m frame periods, a second gray-level pattern generating circuit 321 for generating a second gray-level pattern which acquires another gray level during n frame periods (n is a positive integer greater than m), and a selection circuit 341 for selecting and outputting one of the preset voltages, in accordance with an output from the first gray-level pattern generating circuit 311 or the second gray-level pattern generating circuit 321 when the input multi-gray level display data corresponds to a gray level of either the first gray-level pattern or the second gray-level pattern.