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:
Feb. 16, 2010
Filed:
Jun. 07, 2006
Masahiro Suzuki, Tokyo, JP;
Dai Shizume, Chuo, JP;
Yasunori Higuchi, Chuo, JP;
Kenichiro Hosoi, Tokyo, JP;
Masahiro Suzuki, Tokyo, JP;
Dai Shizume, Chuo, JP;
Yasunori Higuchi, Chuo, JP;
Kenichiro Hosoi, Tokyo, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A brightness level frequency indicated on a frame basis by an input video signal is accumulated in decreasing order or increasing order of the brightness level so that an accumulated brightness level frequency is calculated for every brightness level. The brightness level corresponding to the accumulated brightness level frequency smaller by a predetermined value than any one of the accumulated brightness level frequencies indicated as maximum is regarded as an effective maximum brightness level. Based on this effective maximum brightness level, the number of sub-fields is determined for assignment to each different brightness segment region. With such a configuration, the resulting display device can lead to favorable halftone representation without causing viewers to feel something is wrong no matter what type of display images.