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:
Jun. 29, 2010
Filed:
Feb. 23, 2005
Kazutaka Goto, Mobara, JP;
Hiroaki Asuma, Mobara, JP;
Atsushi Hasegawa, Togane, JP;
Hitachi Displays, Ltd., Chiba, JP;
Abstract
A display device includes sub-pixels, video lines, a drive circuit and switch groups. The video lines are divided into plural blocks each composed of m video lines, m being an integer of 2 or more. The drive circuit outputs m gray scale voltages time-sequentially. Each of the switch groups corresponding to one of the blocks is composed of first to mth switches, receives the m gray scale voltages from the drive circuit, and then supplies them to the m video lines in a time-division multiplexed fashion. The mth switch is turned on last during a writing time for writing the m gray scale voltages into the sub-pixels, and Tq<Tm, where Tm and Tq are times during which the mth switch and a qth switch of the first to (m−1)th switches are turned on, respectively, and q is an integer of from 1 to (m−1).