Method and device for locating touch points on touch screen

A positioning method and a technology of a positioning device, which are applied in the field of touch screens, can solve problems such as problems, and achieve the effects of reducing production costs, expanding the scope of application, and improving waterproof effects

Active Publication Date: 2014-08-20
BYD SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method does not guarantee that all products can be successfully circumvented,

Method used

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  • Method and device for locating touch points on touch screen
  • Method and device for locating touch points on touch screen
  • Method and device for locating touch points on touch screen

Examples

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0018] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...

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Abstract

A method and an apparatus for positioning a touch point on a touch screen are provided. The method includes: detecting simultaneously a self-capacitance and a mutual capacitance of a sensor in the touch screen to obtain a self-capacitance positioning result and a mutual capacitance detecting result respectively; obtaining a mutual capacitance positioning result according to the mutual capacitance detecting result; determining a location of the touch point according to the self-capacitance positioning result and the mutual capacitance positioning result.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a touch point positioning method and device for a touch screen. Background technique [0002] Currently, capacitive screen scanning methods mainly include self-capacitance scanning methods and mutual capacitance scanning methods. Self-capacitance scanning is to scan the capacitance formed by the channels in the capacitive screen and the touching finger, while mutual capacitance scanning is to scan the capacitance formed by the channels in the capacitive screen. Self-capacitance scanning is less affected by water and has strong anti-interference ability, but this method cannot recognize multi-touch, and generally only supports single-point and gestures. Mutual capacitance scanning can support multi-touch and is widely used in high-end mobile phones and tablet computers. Almost all brand mobile phones and tablet computers are touch screens with mutual capacitance scanning. H...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/044G06F3/04166G06F3/0446G06F2203/04106
Inventor 李振刚黄臣杨云
Owner BYD SEMICON CO LTD
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