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:
Nov. 15, 2005
Filed:
Mar. 28, 2002
Yukio Tanaka, Kyoto, JP;
Masanori Kimura, Osaka, JP;
Takashi Okada, Osaka, JP;
Katsuhiko Kumagawa, Osaka, JP;
Yukio Tanaka, Kyoto, JP;
Masanori Kimura, Osaka, JP;
Takashi Okada, Osaka, JP;
Katsuhiko Kumagawa, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Disclosed is a display capable of improving uniformity of luminance and chroma in a plane of a display panel. When point at which the light source is turned ON is represented by T, transmittance in a display region onto which the video signals are being written at the point Tis represented by M, point at which the light source is turned OFF is represented by T, transmittance in the display region onto which the video signals are being written at point Tis represented by M, a maximum value of the transmittance in the display region of the light modulation element in a period during which the light source is ON is represented by M, and the write period is represented by Twrite, the illuminating device control portion is adapted to control the illuminating device so as to satisfy a formula given by [|M−M|Twrite]/[M(T−T)]≦0.92.