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. 12, 1997
Filed:
May. 26, 1995
Sun-jung Choi, Suwon, KR;
Samsung Display Devices Co., Ltd., Kyungki-do, KR;
Abstract
A method of driving a matrix liquid crystal display (LCD) panel can improve LCD response characteristics due to an improved duty ratio, by overlapping scanning electrode driving signals internally having a positive selection pulse and a negative compensation pulse sequentially by a predetermined interval, or, at the time of driving two lines, by applying a signal whose sequence of selection pulse and compensation pulse of the scanning electrode driving signal applied thereto are reversed and overlapping a predetermined interval thereof. Also, when a data electrode driving signal is switched, since the signal is switched after maintaining an intermediate voltage level, at the interval where the scanning electrode driving signals are sequentially overlapped, a rapid change in voltage level can be prevented, that is, the data electrode driving signal variation is improved, which leads to a remarkable reduction of a waveform differential induced for a non-selection scanning electrode driving signal, thereby considerably reducing the crosstalk of an LCD.