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:
May. 19, 1998
Filed:
Nov. 30, 1995
Toshihiro Nakamura, Tenri, JP;
Shunichi Murahashi, Nabari, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A drive method and a drive unit for a liquid crystal display unit which reduce the variation in the effective value of an applied voltage dependent upon the display patterns, are inexpensive, and enhance the display quality are provided. There is provided a segment-side liquid crystal drive circuit 2 which incorporates an output control section 26 where an output correction period is provided in an output of the segment-side liquid crystal drive circuit 2 at intervals of a 1-line scanning period, and during the output correction period a display voltage level of the output is set to an OFF display voltage level when the display voltage level of the output is in an ON display level and to an ON display voltage level when the display voltage level of the output is in an OFF display level.