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:
Dec. 07, 2004
Filed:
Oct. 31, 2001
Masafumi Hoshino, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
In a method of driving multiple gradation display of a liquid crystal display panel for driving a simple matrix type liquid crystal display panel holding a liquid crystal layer between a row electrode group and column electrode group and providing pixels in matrix in accordance with given pixel data, to reduce power consumption of a simple matrix type liquid crystal display panel by restraining the amount of change in the waveform without deteriorating display quality, frame modulation is carried out at respective row and when rows are made ON and OFF alternately each row at an intermediate gradation level, every other row is selected. In the case of driving by nondistributed type 4MLA method of the invention constituted in this way, a change in a waveform of a column electrode is carried out twice per frame. The number of changes is significantly reduced in comparison the number of changes in driving by conventional nondistributed type 4 MLA method (N times).