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. 21, 2008
Filed:
Nov. 24, 2004
Norihide Kinugasa, Kyoto, JP;
Yoshio Nirasawa, Kyoto, JP;
Hideo Hamaguchi, Osaka, JP;
Sachi Ota, Osaka, JP;
Norihide Kinugasa, Kyoto, JP;
Yoshio Nirasawa, Kyoto, JP;
Hideo Hamaguchi, Osaka, JP;
Sachi Ota, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A display panel control circuit includes a voltage controlled oscillator (VCO) for outputting a clock signal, a first-panel horizontal system pulse generation section, a second-panel horizontal system pulse generation section, a vertical system pulse generation section which is commonly used among the first and second panels, a phase comparator, and a smoothing element. The first-panel horizontal system pulse generation section and the second-panel horizontal system pulse generation section respectively generate a reference signal of a first-panel horizontal system output group and a reference signal of a second-panel horizontal system output group from signal VCOCLKoutput from the VCO. Thus, it is possible to simultaneously drive two different panels.