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:
Mar. 18, 2003
Filed:
Dec. 10, 1999
Hirohito Kuriyama, Kawasaki, JP;
Katsuhiro Ishida, Kawasaki, JP;
Akira Yamamoto, Kawasaki, JP;
Ayahito Kojima, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention relates to a display device including an interface device, which can prevent from reducing a resolving power of gray scales for a dark picture signal is provided. The interface device according to the present invention is provided to prevent from decreasing a resolving power of luminance gray scales by setting a dynamic range of an analog digital converter according to a peak value of an analog picture signal. Further, a luminance control signal for determining a luminous level of the picture to be displayed is set according to the peak value of the analog picture signal. As the result, the interface device according to the present invention can generate a display signal displaying a picture having a sufficient resolving power of gray scales with a luminance (brightness) required for the darkness, even if a dark picture, of which analog picture signal is comparatively small, is generated.