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Identification method and device of touches

An identification method and touch screen technology, applied in the input/output process of data processing, instruments, calculations, etc., can solve the problems of false triggering of the touch screen, and the touch screen is susceptible to electromagnetic interference, so as to increase the detection dimension, increase the working state detection and Ambient light detection and judgment are reliable and effective

Inactive Publication Date: 2017-02-22
QINGDAO HISENSE MOBILE COMM TECH CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The applicant found in the process of realizing the present invention that the existing touch screen is still susceptible to electromagnetic interference. In addition to external electromagnetic interference, there will also be internal electromagnetic interference. These internal or external interference voltages will pass through Capacitive coupling to the touch screen device causes charge movement in the touch screen, thereby forming a capacitance difference relative to the reference value. When the difference reaches a certain level, it is considered that a touch event has occurred, resulting in false triggering of the touch screen

Method used

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Embodiment Construction

[0031] Such as figure 1 As shown, it is a schematic flow diagram of an anti-electromagnetic interference process in the prior art. After the touch screen senses the capacitance value change, the changed area and capacitance value are processed by algorithm in a conventional way, and the processed value and capacitance value are obtained. Coordinates, and then compare the processed value with the threshold value preset by the system. When the processed value is greater than the threshold value, the processed coordinate data is reported to the execution unit of the host computer to perform related trigger operations.

[0032] As stated in the background technology of this application, existing touch screens are susceptible to electromagnetic interference. In addition to electromagnetic interference from the outside, there will also be electromagnetic interference from the inside. Unstable, causing electromagnetic interference to the mobile phone and causing false triggering. Th...

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Abstract

The invention discloses an identification method and an identification device of touches. The identification method of the touches is applied into a capacitive touch screen device comprising a pressure sensor, and includes: when the capacitive touch screen device detects a capacitance variation incident, obtaining capacitance data in a variation region, wherein the capacitance data includes capacitance value and coordinate value; judging whether the capacitance data meets capacitance threshold value of a touch incident, and if yes, further judging whether pressure value of an occurrence region of the capacitance variation incident exceeds preset pressure threshold; if the pressure value of the occurrence region of the capacitance variation incident exceeds the pressure threshold, identifying the capacitance variation incident as the touch incident, and reporting the coordinate value. According to the identification method and the identification device of the touches, the pressure value of the pressure sensor is introduced into detecting conditions of the touch incident of the capacitive touch screen device, new detection dimensionality is added, and judgment of the touch incident is reliable and effective.

Description

technical field [0001] The invention relates to the field of touch control, in particular to a touch recognition method and device. Background technique [0002] Touch screen (touch screen), also known as "touch screen", is an inductive feedback device that can receive input signals such as contacts. When touching the graphic button on the screen, the tactile feedback system on the screen can The program drives various connecting devices, which can be used to replace the mechanical button panel, and the liquid crystal display screen can produce vivid audio-visual effects to complete the touch operation. As the latest mobile terminal input device, the touch screen is the most widely used simple, convenient and natural human-computer interaction method. With the popularization of smart terminals, the information exchange between users and smart terminals is almost entirely on the display screen. and touch screen complete. [0003] At present, the capacitive touch screen is t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0414G06F3/0416G06F3/044
Inventor 何琦
Owner QINGDAO HISENSE MOBILE COMM TECH CO LTD
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