Invention Grant
- Patent Title: Touch panel
- Patent Title (中): 触控面板
-
Application No.: US13768927Application Date: 2013-02-15
-
Publication No.: US09124275B2Publication Date: 2015-09-01
- Inventor: Kouichi Santo , Hideaki Eto , Takuma Besshi , Tsutomu Yahagi
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMANT CO.,LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMANT CO.,LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will Emery LLP
- Priority: JP2012-047631 20120305
- Main IPC: G06F3/041
- IPC: G06F3/041 ; H01H13/02 ; H03K17/96 ; G06F3/044 ; G06F3/0354

Abstract:
A touch panel includes a transparent plate, an upper substrate having an upper surface situated on a lower surface of the transparent plate and stacked on the transparent plate in a downward direction, an upper conductive layer provided between the lower surface of the transparent plate and the lower surface of the upper substrate, a lower substrate having an upper surface situated on the lower surface of the upper substrate and stacked on the upper substrate in the downward direction, and a lower conductive layer provided between the lower surface of the upper substrate and the upper surface of the lower substrate and facing the upper conductive layer across the upper substrate. The upper surface of the transparent plate has a dome shape projecting upward on a cross section in a first direction perpendicular to the downward direction and on a cross section in a second direction perpendicular to the downward direction and the first direction. The lower surface of the transparent plate is concave upward on the cross section in the first direction is straight on the cross section in the second direction. The touch panel can be easily manufactured and reliably operated.
Public/Granted literature
- US20130228441A1 TOUCH PANEL Public/Granted day:2013-09-05
Information query