Touch control substrate, touch control device, and touch-control detection method
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Solution Overview
Problem
Conventional touch devices have a long scanning period due to scanning one sensing electrode at a time, leading to slow touch response and low sensitivity.
Innovation Solution
Connect sensing electrodes at opposite sides of the touch region to sensing electrode traces, allowing simultaneous scanning of two electrodes, reducing the scanning period by half.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If all sensing electrodes are connected to sensing electrode traces at the same side of the touch region, then the connection structure is simple, but the scanning period is long and touch response is slow
Solution Approach 1:
The sensing electrodes are divided into two groups: first sensing electrodes connected to sensing electrode traces at a first side of the touch region, and second sensing electrodes connected to sensing electrode traces at a second side of the touch region. This segmentation allows simultaneous scanning of electrodes from both sides, effectively halving the scanning period while maintaining manageable connection complexity.
2Ease of operation
If one sensing electrode is scanned at a time, then the scanning process is simple, but the touch sensitivity is low
Solution Approach 1:
The sensing electrodes are segmented into two groups connected at opposite sides of the touch region, enabling parallel scanning operations. This allows two sensing electrodes to be scanned simultaneously within the same scanning duration, improving touch sensitivity while keeping the scanning process straightforward.
Solution Approach 2:
The patent transitions from sequential scanning in one dimension to parallel scanning by utilizing both sides of the touch region. By connecting sensing electrodes at opposite sides and scanning them simultaneously, the system effectively adds a spatial dimension to the scanning process, improving sensitivity without complicating the operation.
Data Source
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AI summary
A touch substrate, a touch device and a touch detection method are provided. The touch substrate includes: a base substrate, including a touch region and a trace region surrounding the touch region; multiple sensing electrodes arranged in the touch region; and multiple sensing electrode traces arranged in the trace region and connected to the multiple sensing electrodes respectively. The sensing electrodes includes first sensing electrodes and second sensing electrodes, each first sensing electrode is connected at a first side of the touch region to a sensing electrode trace, and each second sensing electrode is connected at a second side of the touch region opposite to the first side to a sensing electrode trace. In this disclosure, sensing electrodes are connected at two opposite sides of the touch region to the sensing electrode traces, therefore, two sensing electrodes may be scanned each time, shortening a scanning period of the sensing electrodes.