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. 22, 2011
Filed:
Oct. 24, 2008
Hirotaka Hayashi, Fukaya, JP;
Takashi Nakamura, Saitama, JP;
Masayoshi Fuchi, Ageo, JP;
Masahiro Tada, Tokyo, JP;
Hiroki Nakamura, Ageo, JP;
Hirotaka Hayashi, Fukaya, JP;
Takashi Nakamura, Saitama, JP;
Masayoshi Fuchi, Ageo, JP;
Masahiro Tada, Tokyo, JP;
Hiroki Nakamura, Ageo, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
A capacitor charged beforehand is discharged according to a light surrounding a display unit. A data is decreased similarly to the voltage between the electrodes of the capacitor. A trigger signal is outputted if the data becomes equal to or less than a threshold value. A clock signal whose cycle of changing levels gradually becomes long is generated. A count value is updated at each change of the clock signal's level and the updated count value is outputted. The count value is sampled when the trigger signal is outputted.