Touch detection method and touch detection device

A technology of touch detection and touch points, applied in the electronic field, can solve the problems that the performance and touch accuracy of large-size resistive touch screens cannot be satisfied at the same time
CN106843596AActive Publication Date: 2017-06-13SHENZHEN UNIMAT AUTOMATION TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHENZHEN UNIMAT AUTOMATION TECH
Publication Date
2017-06-13

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Abstract

The invention is applicable to the technical field of electronics, and provides a touch detection method and a touch detection device, which are intended to solve the problem in the prior art that the performance and touch accuracy of large-size resistive touch screens cannot be simultaneously met. The method includes: if touch data which is inputted by a user through a touch screen is detected, then carrying out voltage value sampling on detected touch points for n times; according to n x-axis sampled voltage values and n y-axis sampled voltage values, judging whether the positions of the touch points belong to touch-insensitive problematic areas; if the positions of the touch points belong to the problematic areas, then continuing to carry out voltage value sampling on the touch points, and calculating x-axis voltage values and y-axis voltage values of the touch points according to sampled data; and determining position coordinates of the touch points on the touch screen according to the x-axis voltage values and the y-axis voltage values. The technical solution of the invention reduces the processing load of a processor and increases touch performance, and moreover, problems, such as touch display refresh delay, are prevented.
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Description

technical field

[0001] The present invention relates to the field of electronic technology, in particular to a touch detection method and device. Background technique

[0002] At present, as the size of touch screens continues to increase, large-sized finished touch screens have poor performance in terms of touch pressure consistency. Product developers often filter invalid data and calculate accurate touch trajectories by increasing the number of sampling points or uniformly using filtering algorithms with high time complexity.

[0003] However, increasing the number of sampling points and uniformly using filtering algorithms with high time complexity will increase the burden on the main processor. In embedded systems with strict performance requirements, it will often lead to problems such as touch display refresh delays. Affect the user's touch experience. Contents of the invention

[0004] Embodiments of the present invention provide a touch detection method and devi...

Claims

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