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Method and device for distinguishing single-finger lineation from double-finger drawing lineation according to touch area and touch display device

A technology of touch display device and touch area, which is applied in the input/output process of data processing, electrical digital data processing, instruments, etc., and can solve problems such as line burrs and staircase shapes, affecting user experience, etc.

Active Publication Date: 2020-02-28
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of capacitive touch, when the user changes from one finger to two fingers together to draw a line, because the distance between the two fingers is too close, it is easy to be interpreted by the touch IC as a single finger to draw a line, and sometimes it is understood as two fingers to draw a line together. The IC is constantly switching between the two, so that the touch response is constantly changing, and the line appears glitchy and staircase-like, which affects the user's operating experience

Method used

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  • Method and device for distinguishing single-finger lineation from double-finger drawing lineation according to touch area and touch display device
  • Method and device for distinguishing single-finger lineation from double-finger drawing lineation according to touch area and touch display device
  • Method and device for distinguishing single-finger lineation from double-finger drawing lineation according to touch area and touch display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] refer to figure 1 , this embodiment provides a touch recognition method for distinguishing between a single-finger scribing line and two-finger close-up scribing line according to the touch area, including:

[0061] Step S101, detecting the coordinate trajectory, and determining that the single-finger scribing action is currently in progress;

[0062] Step S102, if yes, check whether there is a unit satisfying the predetermined first threshold in the sixteen squares around the current pressing area;

[0063] Step S103, if there is, take the next frame of data, and check whether there are units and their affiliated units that meet the predetermined second threshold in the forty squares around the pressed area;

[0064] Step S104, if yes, take fifteen frames of data continuously, and respectively search whether there is a unit and its affiliated units that meet the predetermined third threshold in the forty squares around the pressing area of ​​each frame of data;

[0065...

Embodiment 2

[0111] refer to Figure 4 , this embodiment provides a touch recognition device for distinguishing between a single-finger scribing line and two-finger close-up scribing line according to the touch area, including a display area 601 and a non-display area 602 , multiple channels are set in the display area, and the non-display area 602 A touch IC603 and a memory 604 are provided inside, the touch IC603 is connected to multiple channels, and the memory 604 stores a plurality of instructions, and the touch IC603 is used to read the instructions and execute:

[0112] Detect the coordinate trajectory to determine that the single-finger scribing action is currently in progress;

[0113] Find whether there is a unit satisfying the predetermined first threshold in the sixteen squares around the current pressing area;

[0114] If there is, take the next frame of data, and find out whether there are units and their affiliated units that meet the predetermined second threshold in the f...

Embodiment 3

[0120] This embodiment provides a touch display device, including the touch recognition device according to the second embodiment for distinguishing between a line drawn by a single finger and a line drawn by two fingers together according to the touch area.

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Abstract

The invention provides a method for distinguishing single-finger lineation from double-finger drawing lineation according to a touch area, which comprises the following steps of detecting a coordinatetrack, and determining that a single-finger lineation action is performed currently; searching whether a unit meeting a preset first threshold value exists in the sixteen grids around the current pressing area or not; if yes, taking the next frame of data, and searching for whether a unit meeting a preset second threshold value and an auxiliary unit of the unit exist in forty grids around the pressing area or not; if yes, continuously taking fifteen frames of data, and respectively searching whether a unit meeting a preset third threshold value and an affiliated unit of the unit exist in forty grids around a pressing area of each frame of data or not; if yes, judging that single-finger scribing is changed into double-finger closing scribing at the moment. The invention further provides atouch recognition device and a touch display device based on the method. Whether single-finger scribing is changed into double-finger closing scribing or not can be determined, and the problems of sawtooth-shaped and burr-shaped tracks generated in the process of changing the single finger into the double-finger closing scribing are solved.

Description

Technical field: [0001] The invention belongs to the field of touch technology, and specifically relates to a method, a device and a touch display device for distinguishing a single-finger scribing line from a two-finger close-up scribing line according to a touch area. Background technique: [0002] In the field of capacitive touch, when the user changes from one finger to two fingers together to draw a line, because the distance between the two fingers is too close, it is easy to be interpreted by the touch IC as a single finger to draw a line, and sometimes it is understood as two fingers to draw a line together. The IC is constantly switching between the two, so that the touch response is constantly changing, and the line appears glitchy and staircase-like, which affects the user's operating experience. Therefore, it is very necessary to design a more stable recognition method for changing a single-finger swipe to a two-finger swipe to improve the operating experience. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0488G06F3/041
CPCG06F3/0416G06F3/04886
Inventor 范京津毕硕本贺文武陈昌春陈烨洲
Owner NANJING UNIV OF INFORMATION SCI & TECH
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