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:
Jun. 13, 2017
Filed:
Nov. 29, 2011
Norio Mamba, Kawasaki, JP;
Koji Doi, Chiba, JP;
Norio Mamba, Kawasaki, JP;
Koji Doi, Chiba, JP;
Japan Display Inc., Tokyo, JP;
Abstract
A capacitive touch panel includes a scanning circuit portion for inputting a drive voltage to each scanning electrode sequentially in 1st to n-th sub detection periods, a capacitance detection circuit portion for detecting a capacitance detection signal of the each detecting electrode in the 1st to n-th groups, and a control circuit portion for calculating a capacitance detection signal change amount from the capacitance detection signals of a plurality of the detecting electrodes detected by the capacitance detection circuit portion, and calculating coordinates of a touch position based on the capacitance detection signal change amounts. The control circuit portion determines, in consecutive sub detection periods, the capacitance detection signal change amount of the each detecting electrode in two groups from which the capacitance detection signals are detected in the consecutive sub detection periods, based on the capacitance detection signals consecutively detected from at least one same detecting electrode.