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Touch detection method and mobile terminal

A technology of a mobile terminal and a detection method, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve the problems of difficult-to-touch capacitance values, limited structural space of the whole machine, etc.

Inactive Publication Date: 2018-08-31
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a touch detection method and a mobile terminal to solve the problem that the structural space of the whole machine is limited due to the addition of an additional pressure sensing device, so that it is difficult to accurately detect the touch capacitance value by using the deformation of the whole machine

Method used

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  • Touch detection method and mobile terminal
  • Touch detection method and mobile terminal
  • Touch detection method and mobile terminal

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Experimental program
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Effect test

Embodiment 1

[0029] refer to figure 1 , shows a flow chart of a touch detection method according to Embodiment 1 of the present invention, the method can be applied to a mobile terminal, and the mobile terminal can include multiple demultiplexing units, multiple OR gate units, multiple analog front ends, a display panel and display driver chips, wherein, refer to figure 2 , the first sensing unit 111 in the display panel 10 is electrically connected to the first demultiplexing unit 112, the first OR gate unit 113 and the first analog front end 114 in sequence, and the second sensing unit 121 in the display panel 10 is electrically connected to the The second demultiplexing unit 122, the second OR gate unit 123, and the second analog front end 124, a plurality of analog front ends are electrically connected to the display driver chip 20, and when the first sensing unit 111 includes at least one data line, the second sensing unit 111 The unit 121 includes at least one gate line. When the f...

Embodiment 2

[0045] refer to image 3 , shows a flow chart of a touch detection method according to Embodiment 2 of the present invention, the method can be applied to a mobile terminal, and the mobile terminal can include multiple demultiplexing units, multiple OR gate units, multiple analog front ends, a display The panel and the display driver chip, wherein the first sensing unit in the display panel is electrically connected to the first demultiplexing unit, the first OR gate unit and the first analog front end in sequence, and the second sensing unit in the display panel is electrically connected to the The second demultiplexing unit, the second OR gate unit and the second analog front end, a plurality of analog front ends are electrically connected to the display driver chip, when the first sensing unit includes at least one data line, the second sensing unit includes at least one gate When the first sensing unit includes at least one gate line, the second sensing unit includes at le...

Embodiment 3

[0076] refer to Figure 4 , shows a flow chart of a touch detection method according to Embodiment 3 of the present invention, the method can be applied to a mobile terminal, and the mobile terminal can include multiple demultiplexing units, multiple OR gate units, multiple analog front ends, a display The panel and the display driver chip, wherein the first sensing unit in the display panel is electrically connected to the first demultiplexing unit, the first OR gate unit and the first analog front end in sequence, and the second sensing unit in the display panel is electrically connected to the The second demultiplexing unit, the second OR gate unit and the second analog front end, a plurality of analog front ends are electrically connected to the display driver chip, when the first sensing unit includes at least one data line, the second sensing unit includes at least one gate When the first sensing unit includes at least one gate line, the second sensing unit includes at l...

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Abstract

The invention provides a touch detection method and a mobile terminal, and relates to the technical field of touch. The method comprises: when touch detection is to be carried out, a first analog front end inputting a scanning signal to a first sensing unit through a first demultiplexing unit and a first OR gate unit; when a waveform of the scanning signal changes, a target sensing unit receivinga sensing signal; the target sensing unit including a first sensing unit or a second sensing unit; the target sensing unit inputting the sensing signal to a display driving chip through a target demultiplexing unit, a target OR gate circuit, and a target analog front end which are connected with the target sensing unit; the display driving chip determining a touch capacitance value according to the sensing signal. In an embodiment, a data line and / or a grid line of a display panel is used as the sensing unit, the touch capacitance value is detected by the display panel, an additional pressuresensing device is not needed, deformation space in the mobile terminal can be increased, so as to realize accurate touch detection by using the sufficient deformation space.

Description

technical field [0001] The present invention relates to the field of touch technology, in particular to a touch detection method and a mobile terminal. Background technique [0002] With the rapid development of mobile terminal technology, the technologies applied in mobile terminals are becoming more and more diverse. Among them, touch technology, as a human-computer interaction technology in mobile terminals, can enable users to control mobile terminals more conveniently, thereby providing It brings great convenience to users. [0003] At present, the way to realize pressure touch usually needs to add an additional pressure sensor in the mobile terminal. The pressure sensor can be pasted on the iron frame of the display panel or under the lower glass, so that the pressure sensor can According to the variation of the distance between the conductors caused by the deformation of the whole machine, the touch capacitance value is determined, so as to realize the touch detectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041
CPCG06F3/044G06F3/0412G06F3/0414
Inventor 吴仓志
Owner VIVO MOBILE COMM CO LTD