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:
Dec. 20, 2011
Filed:
Oct. 30, 2008
Norio Mamba, Kawasaki, JP;
Tsutomu Furuhashi, Yokohama, JP;
Toshiyuki Kumagai, Chigasaki, JP;
Masayoshi Kinoshita, Oita, JP;
Norio Mamba, Kawasaki, JP;
Tsutomu Furuhashi, Yokohama, JP;
Toshiyuki Kumagai, Chigasaki, JP;
Masayoshi Kinoshita, Oita, JP;
Hitachi Displays, Ltd., Chiba, JP;
Panasonic Liquid Crystal Display Co., Ltd., Hyogo-ken, JP;
Abstract
A detection resolution is improved in a display device that employs an electrostatic capacity coupling type touch panel provided with a transparent conductive film serving as a detection film. A plurality of electrode terminals () is provided such that at least three electrode terminals () are aligned in each side of a detection transparent conductive film (). A touch panel control circuit is provided for selecting one of two to four numbers of electrode terminals from among the plurality of electrode terminals () of the detection transparent conductive film (), applying an AC signal provided from a signal source () through a current detection resistor (r) (), and then detecting a current that flows through each of the selected electrode terminals.