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:
Apr. 15, 2014
Filed:
Feb. 24, 2011
Yukari Katayama, Chigasaki, JP;
Akihito Akai, Kawasaki, JP;
Yoshiki Kurokawa, Tokyo, JP;
Yusuke Uchida, Tokyo, JP;
Yukari Katayama, Chigasaki, JP;
Akihito Akai, Kawasaki, JP;
Yoshiki Kurokawa, Tokyo, JP;
Yusuke Uchida, Tokyo, JP;
Renesas SP Drivers Inc., Tokyo, JP;
Abstract
The display driving circuit includes: an OD (OverDrive) calculation circuit operable to generate an OD driving signal for improving the response characteristic of a display device according to display image data; a drive-output circuit operable to supply an OD driving signal to the display device; and a compression circuit operable to store compressed display data in a memory. The compression circuit includes a DCT calculation module operable to execute DCT (Discrete Cosine Transform) of display image data, and an entropy coding module operable to execute variable length entropy coding of DCT conversion display data. Preferably, the display driving circuit further includes a decompression circuit operable to supply an OD calculation circuit with display data resulting from decompression of compressed display data read out the memory.