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:
Mar. 10, 2009
Filed:
Aug. 14, 2002
Shigetsugu Okamoto, Nara, JP;
Shigetsugu Okamoto, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display element, provided at each point of intersections of a plurality of signal lines and a plurality of scanning lines, includes an optical modulation elementand an active element, wherein, when a scanning is carried out not less than once in one field period at a predetermined intervals, a memory elementwhich can store M-bit (M≧1) information at the maximum is provided so that the optical modulation elementkeeps the display with 2-level gray scale until the next scanning. On this account, it is possible to supply gray scale signal data Dm to the optical modulation elementso as to keep the display condition, without attenuating the data after the scanning of pixels. Moreover, since the level of the gray scale display is kept by outputting the information stored in the memory element, the gray scale level in each time division sub field can be in concordance with the number of memory bits.