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. 28, 2017
Filed:
Nov. 07, 2013
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Shinji Nakagawa, Osaka, JP;
Hiroyuki Furukawa, Osaka, JP;
Kazuyoshi Yoshiyama, Osaka, JP;
Yasuhiro Yoshida, Osaka, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Abstract
A signal conversion circuit () of a multiprimary display device () includes a low-range multiprimary signal generation section (), a high-range luminance signal generation section (), and a rendering process section (). The low-range multiprimary signal generation section includes a first filter section () which is capable of extracting a low-range component from an input image signal and a multiprimary conversion section (), whereas the high-range luminance signal generation section includes a luminance conversion section () and a second filter section () which extracts a high-range component of a luminance signal. The signal conversion circuit further includes a chromaticity conversion section () and a luminance/chromaticity change detection section (). As a frequency characteristics profile of the first filter section, one frequency characteristics profile is selected from among a plurality of predefined frequency characteristics profiles, in accordance with a result of detection by the luminance/chromaticity change detection section.