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:
Dec. 27, 2005
Filed:
Mar. 20, 2002
Taro Funamoto, Mino, JP;
Wataru Machidori, Amagasaki, JP;
Katsuyuki Arimoto, Okayama, JP;
Yoshihito Ohta, Okayama, JP;
Takahiro Kobayashi, Okayama, JP;
Yasuhiro Kumamoto, Neyagawa, JP;
Tetsuo Kariya, Ibaraki, JP;
Taro Funamoto, Mino, JP;
Wataru Machidori, Amagasaki, JP;
Katsuyuki Arimoto, Okayama, JP;
Yoshihito Ohta, Okayama, JP;
Takahiro Kobayashi, Okayama, JP;
Yasuhiro Kumamoto, Neyagawa, JP;
Tetsuo Kariya, Ibaraki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A liquid crystal display apparatus that uses a backlight for display includes a video signal time compression circuit for compressing a video signal in the time axis direction and outputting the time-compressed video signal, an LCD controller for driving a liquid crystal panel based on the time-compressed video signal, and a source driver and a gate driver. The liquid crystal display apparatus also includes a motion detection circuit for detecting the amount of motion of a display image based on the video signal, a PWM modulation pulse generation circuit for generating modulation pulses different in frequency according to the detection result from the motion detection circuit, and an inverter for lighting up the backlight based on the modulation pulses, to thereby enable reduction of image contour blurring in a moving image and reduction of flicker in a still image.