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Reporting point determination method and apparatus of capacitive touch panel

A technology of capacitive touch screen and determination method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., and can solve problems such as false alarm points

Inactive Publication Date: 2017-01-04
XIAOMI INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, if the reference value of the reporting point in the normal state is also applied to determine the reporting point, there may be false alarm points

Method used

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  • Reporting point determination method and apparatus of capacitive touch panel
  • Reporting point determination method and apparatus of capacitive touch panel
  • Reporting point determination method and apparatus of capacitive touch panel

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Embodiment Construction

[0054] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0055] An embodiment of the present disclosure provides a method for determining a report point of a capacitive touch screen, which can be used in a terminal device using a capacitive touch screen, such as figure 1 As shown, the method includes steps S101-S103:

[0056] In step S101, the current temperature value of the touch screen is acquired. Wherein, the temperature value collected by a te...

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Abstract

The invention relates to a reporting point determination method and apparatus of a capacitive touch panel. The reporting point determination method and apparatus is used for dynamically adjusting a reporting point reference value according to a current temperature value of the touch panel to avoid the situation of false reporting points. The method comprises the steps of obtaining the current temperature value of the touch panel; adjusting the reporting point reference value according to the current temperature value; and determining a reporting point of the touch panel according to the adjusted reporting point reference value. Through the technical scheme disclosed by the reporting point determination method and apparatus, the reporting point reference value and the current temperature value can keep a corresponding relationship, so that the problem of the occurrence of the false reporting points caused by the fact that the temperature value of the touch panel is changed but the reporting point reference value is not changed is avoided, and the usage experience of users is improved.

Description

technical field [0001] The present disclosure relates to the technical field of touch screens, in particular to a method and device for determining an alarm point of a capacitive touch screen. Background technique [0002] A touch panel, also known as a touch panel, is a device that can accept input signals. Touch screens are generally divided into resistive and capacitive. At present, capacitive touch screens are basically used on the terminal. When the user touches the capacitive screen, due to the electric field of the human body, the user's finger and the working surface form a coupling capacitor. Because the working surface is connected to a high-frequency signal, the finger absorbs a small The current flows out from the electrodes on the four corners of the screen respectively, and theoretically the current flowing through the four electrodes is proportional to the distance from the finger to the four corners. The controller calculates the ratio of the four currents p...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 陶钧杨坤江忠胜
Owner XIAOMI INC