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:
Oct. 24, 2000
Filed:
May. 01, 1997
Jun-Hee Kim, Seoul, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Liquid crystal display (LCD) driving circuit in which a small number of voltage sources enable multi-gradation display and gamma correction without extra gamma correction circuits is disclosed. The LCD driving circuit includes a ramp wave generator for generating a plurality of ramp waves each having an appropriate tilt for each section along a T axis of a T-V (transmission-voltage) curve representing the light transmittivity of an LCD according to an applied voltage, a ramp wave selector for selecting one of the plurality of ramp waves according to input data, and a counter for adjusting the time the ramp wave outputted by the ramp wave selector is applied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile