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. 17, 2005
Filed:
Jul. 10, 2002
Koichi Koga, Tokyo, JP;
Noboru Okuzono, Tokyo, JP;
Machihiko Yamaguchi, Tokyo, JP;
NEC LCD Technologies, Ltd., Kanagawa, JP;
Abstract
A liquid crystal display control circuit receives a data enable signal DE in synchronization with per-line based display data from a computer, and thereby controls a liquid crystal display. A gate drive signal outputted from a gate driveris generated according to a vertical clock signal VCK in synchronization with a rise of the signal DE. In order to avoid a variation in the period of charging the pixel electrodes which is caused by a delay in the rise timing of the signal DE and a delay in the signal VCK after the last line, a gate enable signal generation circuitis provided in the liquid crystal display control circuit, whereby the extended output of the pulse of the gate drive signal caused by the above-mentioned delays is inhibited. This avoids display inhomogeneity caused by a variation in the data enable signal and the like.