Invention Application
US20150317008A1 CAPACITIVE TOUCH SCREEN INCLUDING A FIRST SENSOR PATTERN FOR MUTUAL SENSING AND A SECOND SENSOR PATTERN FOR SELF SENSING
有权
电触摸屏幕,包括用于相互感测的第一传感器图案和用于自感觉的第二传感器图案
- Patent Title: CAPACITIVE TOUCH SCREEN INCLUDING A FIRST SENSOR PATTERN FOR MUTUAL SENSING AND A SECOND SENSOR PATTERN FOR SELF SENSING
- Patent Title (中): 电触摸屏幕,包括用于相互感测的第一传感器图案和用于自感觉的第二传感器图案
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Application No.: US14269295Application Date: 2014-05-05
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Publication No.: US20150317008A1Publication Date: 2015-11-05
- Inventor: Praveesh Chandran , Chee Yu Ng
- Applicant: STMicroelectronics Asia Pacific Pte Ltd
- Applicant Address: SG Singapore
- Assignee: STMicroelectronics Asia Pacific Pte Ltd
- Current Assignee: STMicroelectronics Asia Pacific Pte Ltd
- Current Assignee Address: SG Singapore
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041 ; G06F1/16

Abstract:
A capacitive touch panel includes a first sensor pattern and second sensor pattern. The first sensor pattern supports mutual-capacitance detection and the second sensor pattern supports self-capacitance detection. The first sensor pattern includes row conductors and column conductors which intersect each other at mutual-capacitance sensing locations. The second sensor pattern includes island conductors. The island conductors are grouped in clusters of conductors, each cluster providing a self-capacitance sensing location. Control circuitry coupled to the first and second sensor patterns functions to make touch/hover position detections by sensing changes in capacitance at the mutual-capacitance and self-capacitance nodes. The row and column conductors include openings, and the island conductors are positioned in vertical alignment with corresponding openings in the conductors.
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