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:
Jul. 20, 2010
Filed:
Oct. 21, 2005
Naoki Takada, Yokohama, JP;
Yasuyuki Kudo, Fujisawa, JP;
Takuya Eriguchi, Yokosuka, JP;
Akihito Akai, Yokohama, JP;
Kazuo Okado, Kokubungi, JP;
Naoki Takada, Yokohama, JP;
Yasuyuki Kudo, Fujisawa, JP;
Takuya Eriguchi, Yokosuka, JP;
Akihito Akai, Yokohama, JP;
Kazuo Okado, Kokubungi, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
A liquid crystal display is provided with: a tap adjustment register for adjusting a gray scale level to a gray scale voltage in intermediate portions close to the end portions of the gamma characteristic; and a partial-voltage-ratio adjustment register for adjusting a ratio of a gray scale voltage among a plurality of gray scale levels in the intermediate portions close to the end portions of the gamma characteristic, in addition to an amplitude adjustment register for adjusting an amplitude of a gamma characteristic which determines a relation between gray scale levels and gray scale voltages or brightness levels on a display panel; a gradient adjustment register for adjusting a gradient of intermediate portions of the gamma characteristic while fixing end portions of the gamma characteristic; and a fine adjustment register for finely adjusting the intermediate portions of the gamma characteristic for each gray scale level.