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. 07, 2014
Filed:
Oct. 21, 2010
Yong Sung Ahn, Ansan-si, KR;
Jung Min Choi, Daejeon-si, KR;
Sang Rok Cha, Cheongju-si, KR;
Dae Keun Han, Daejeon-si, KR;
Hyung Seog OH, Daejeon-si, KR;
Yong Suk Kim, Daegu-si, KR;
Yong Sung Ahn, Ansan-si, KR;
Jung Min Choi, Daejeon-si, KR;
Sang Rok Cha, Cheongju-si, KR;
Dae Keun Han, Daejeon-si, KR;
Hyung Seog Oh, Daejeon-si, KR;
Yong Suk Kim, Daegu-si, KR;
Silicon Works Co., Ltd., Daejeon-Si, KR;
Abstract
A power supply circuit of a liquid crystal display device includes a first positive polarity charge charging unit including a first capacitor connected to positive and negative power terminals through switches to charge a charge, a second positive polarity charge charging unit including a second capacitor connected to the positive power terminal and a ground terminal through switches to charge a charge, a first positive polarity charge loading unit loading the charge supplied through the positive power terminal to a negative polarity terminal, a second positive polarity charge loading unit loading the charge charged in the first capacitor to a negative polarity terminal, a third positive polarity charge loading unit loading the charge charged in the second capacitor, and a positive polarity charge charging/loading control unit outputting charging control signals with a same phase to the switches, and periodically or irregularly changing durations of the charging and loading control signals.