Invention Grant
- Patent Title: Single layer sensor pattern
- Patent Title (中): 单层传感器图案
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Application No.: US13739112Application Date: 2013-01-11
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Publication No.: US09246485B2Publication Date: 2016-01-26
- Inventor: Chee Yu Ng , Mythreyi Nagarajan
- 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
- Agency: Gardere Wynne Property Sewell LLP
- Main IPC: H03K17/96
- IPC: H03K17/96 ; G06F3/044

Abstract:
A single ITO layer design for a touchscreen panel incorporates a matrix of sensor cells formed from a single ITO layer of capacitive sensor pads, sensor bars, force lines and sense lines. Columns of multiplexed force lines are connected to rows of sensor pads to form force trees such that the force line of the end pair of sensor pads has a wide track, with the force lines of each subsequent pair of sensor pads having a reduced track width. Disposed between the columns of force trees, the matrix of sensor cells also includes columns of sensor bars connected to control circuitry via sense lines. The control circuitry applies a signal to the force trees to generate capacitance between rows of sensor pads and adjacent sensor bars. The control circuitry senses changes in the capacitance and resolves the location of a user touch in the matrix of sensor cells.
Public/Granted literature
- US20140197880A1 SINGLE LAYER SENSOR PATTERN Public/Granted day:2014-07-17
Information query
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