Invention Grant
- Patent Title: Touch sensor panels with reduced static capacitance
- Patent Title (中): 触摸传感器面板,减少静电容量
-
Application No.: US12545741Application Date: 2009-08-21
-
Publication No.: US08507811B2Publication Date: 2013-08-13
- Inventor: Steven Porter Hotelling , Marduke Yousefpor
- Applicant: Steven Porter Hotelling , Marduke Yousefpor
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G08C21/00
- IPC: G08C21/00

Abstract:
Capacitive touch panels may include a plurality of positive voltage lines that are driven at a first phase. These positive voltage lines may be used to provide the drive capacitance signal sensed by one or more sense regions. The touch panels may also include a plurality of negative phase voltage lines that are driven at a phase that is different than the first phase. Both the positive and negative voltage lines may cross-under one or more sense regions. The negative phase voltage lines are able to counter act and reduce the static capacitance in the sense regions.
Public/Granted literature
- US20100193257A1 TOUCH SENSOR PANELS WITH REDUCED STATIC CAPACITANCE Public/Granted day:2010-08-05
Information query