Invention Grant
US08502794B2 Capacitive touch sensitive display with dummy pads and without rear shielding layer
有权
电容式触摸屏显示,带虚拟垫片,无背面屏蔽层
- Patent Title: Capacitive touch sensitive display with dummy pads and without rear shielding layer
- Patent Title (中): 电容式触摸屏显示,带虚拟垫片,无背面屏蔽层
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Application No.: US13211591Application Date: 2011-08-17
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Publication No.: US08502794B2Publication Date: 2013-08-06
- Inventor: Chin-Fu Chang
- Applicant: Chin-Fu Chang
- Applicant Address: TW Taipei
- Assignee: Egalax—Empia Technology Inc.
- Current Assignee: Egalax—Empia Technology Inc.
- Current Assignee Address: TW Taipei
- Agency: WPAT, PC
- Agent Justin King
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
The present invention provides a mutual capacitive multi-touch screen. The conductive strip pattern allows that, when a touch range of each external conductive object on the mutual capacitive multi-touch screen is larger than a predetermined condition, capacitive coupling between each external conductive object and first conductive strip is greater than capacitive coupling between each external conductive object and second conductive strip, such that the proportion of a driving signal flowing out of the first conductive strip via at least one first external conductive object in the external conductive objects and into the second conductive strip via at least one second external conductive object in the external conductive objects decreases as the number of second external conductive objects increases.
Public/Granted literature
- US20120169649A1 CAPACITIVE TOUCH SCREEN Public/Granted day:2012-07-05
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