公开(公告)号：US20170262124A1

公开(公告)日：2017-09-14

申请号：US15511397

申请日：2015-08-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Toshimitsu GOTOH ,  Shinichi MIYAZAKI ,  Hiroki MAKINO

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1335 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/136286 ,  G02F2202/28 ,  G06F3/0412 ,  G06F3/044

Abstract: The present invention provides a touch panel device that utilizes a touch panel driving process that suitably prevents discoloration of an on-cell touch panel. A touch panel-equipped display device includes a touch panel and a touch panel controller. In the touch panel, drive electrodes and sense electrodes are formed in the same layer. The touch panel controller generates drive signals in a manner that keeps an integrated value of differences in electric potential between the drive electrodes and the sense electrodes less than a prescribed value during prescribed periods in which the touch panel is driven.

公开(公告)号：US20170090625A1

公开(公告)日：2017-03-30

申请号：US15312129

申请日：2015-05-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Hiroki MAKINO ,  Mikihiro NOMA ,  Tomotoshi TSUJIOKA ,  Daiji KITAGAWA ,  Hiroyuki OGAWA ,  Yasuhiro SUGITA

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04111

Abstract: A touch panel is realized that is able to decrease the amount of dead space at the periphery of the touch panel and that has highly accurate touch panel sensitivity. In a touch panel, Y direction conductive patterns are arranged so as to be separated from wiring patterns in Y direction conductive pattern regions between electrode units of X direction conductive patterns. As a result, in this conductive sheet, it is possible to appropriately prevent the occurrence of parasitic capacitance resulting from the Y direction conductive patterns and the wiring patterns. Therefore, in a touch panel device or the like that uses such a touch panel, it is possible to effectively prevent the generation of noise that overlaps sense signals as a result of the above-mentioned parasitic capacitance, thereby making it possible to realize highly accurate touch panel sensitivity.