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:
Aug. 10, 2010
Filed:
Apr. 02, 2007
Takashi Nakamura, Saitama, JP;
Takayuki Imai, Fukaya, JP;
Hirotaka Hayashi, Fukaya, JP;
Norio Tada, Kumagaya, JP;
Hiroki Nakamura, Ageo, JP;
Takashi Nakamura, Saitama, JP;
Takayuki Imai, Fukaya, JP;
Hirotaka Hayashi, Fukaya, JP;
Norio Tada, Kumagaya, JP;
Hiroki Nakamura, Ageo, JP;
Toshiba Matsushita Display Technology Co., Ltd., Tokyo, JP;
Abstract
In order to improve accuracy in determining whether or not an object touches a display screen, a display device includes a display unit and a processor. The display unit includes an image display unit which displays an image on a display screen, an optical input unit which picks up an image of an object adjacent to the display screen and a capacitive coupling detector which detects a capacitive coupling to the object adjacent to the display screen. The processor determines that the object touches the display screen by using, and concurrently calculates the coordinates touched by the object by using the capacitive coupling detected by the capacitive coupling detector, and the image picked up by the optical input unit.