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:
Aug. 01, 2006
Filed:
Nov. 06, 2001
Kazuo Kobayashi, Suwa, JP;
Kazuo Kobayashi, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A display driver capable of operating in any one of multiple gradient display modes drives a liquid crystal panel in which the first L common electrodes are simultaneously selected in a first selection period and successive groups of L common electrodes are simultaneously selected in successive selection periods. 8-bit display data for each segment electrode are simultaneously read from a display data RAM and latched. First and second sub-decoders decode divided upper and lower four bits of the 8-bit display data, respectively. In a first mode, the data is for a four gradient display for each of four pixels on each segment electrode. In a second mode, the data is for a two gradient display for each of eight pixels on each segment electrode.