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:
Jul. 19, 2005
Filed:
Feb. 25, 2000
Kazuyoshi Kawaguchi, Yokohama, JP;
Makoto Nagai, Yokohama, JP;
Kazuyoshi Kawaguchi, Yokohama, JP;
Makoto Nagai, Yokohama, JP;
OPTREX Corporation, Tokyo, JP;
Abstract
The liquid crystal display device includes a MLA operating circuit which reads from gradation data of [b, b, b] stored in frame memories bin a period of the first frame, and band bin periods Tand Tof the second frame to produce a column data signal([c, c, c]), and a timing control circuit which controls a latch signal to column drivers so that the time ratio of the first frame to the second frame is 4:3 and the time ration of divided selection periods in the second frame is 2:1. With this, the number of change points of voltage level applicable in selection periods can be reduced whereby occurrence of a waveform distortion is minimized and a possibility of an uneven display in the liquid crystal display device is reduced.