Touch point positioning method and device and electronic device

A touch point, non-touch technology, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of large scanning area, low efficiency in positioning touch points, long positioning time, etc. Efficiency, the effect of shortening the scanning time and reducing the scanning area

Active Publication Date: 2014-07-16
SHANGHAI AVIC OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of determining the position of the touch point, the scanning line continuously scans the full screen of the touch screen line by line, and the scanned area is relatively large, resulting in long positioning time and inefficient positioning of the touch point

Method used

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  • Touch point positioning method and device and electronic device
  • Touch point positioning method and device and electronic device
  • Touch point positioning method and device and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention discloses a method for locating a touch point, such as figure 1 shown, including:

[0029] Step S101 , detecting the current value of each marker quantity of each partition, and acquiring the standard value of each marker quantity and a preset threshold value.

[0030] In step S101, the area to be scanned is divided into several partitions, and the area and shape of each partition can be the same or different. For example, in the area where the touch occurs more densely, the area is divided into smaller partitions, and the number of partitions is increased, thereby improving The accuracy of locating touch points; in the area where the touch occurs relatively sparsely, the number of partitions with a small number of large areas is divided, the number of partitions is reduced, and the power consumption of locating touch points is reduced.

[0031] In step S102 , according to the current value of each marker quantity, the standard val...

Embodiment 2

[0042] Embodiment 2 of the present invention discloses a method for locating a touch point, such as Figure 4 shown, including the following steps:

[0043] Step S201, detecting the current value of each flag quantity of each partition, and obtaining the standard value of each flag quantity and a preset threshold;

[0044] Step S202, according to the current value of each marker, the standard value of the marker and the preset threshold, determine the touch occurrence zone;

[0045] Step S203 , scanning the touch-occurring partition, locating at least one touch point, scanning the touch-occurring partition at least one adjacent partition to the touch-occurring partition, and locating the touch point.

[0046] Through the method for locating a touch point disclosed in Embodiment 2 of the present invention, at least one subregion adjacent to the subregion where the touch point occurs is scanned to expand the scanning range, thereby improving the accuracy of locating the touch p...

Embodiment 3

[0048] In the process of locating the touch point in the prior art, the driving line and the scanning line are always in the working state, and interfere with each other during the locating process of the touch point, resulting in great noise. Embodiment 3 of the present invention discloses a method for locating touch points on the basis of Embodiment 1, such as Figure 5 as shown,

[0049] Step S301, detecting the current value of each flag quantity of each partition, and obtaining the standard value of each flag quantity and a preset threshold;

[0050] Step S302, according to the current value of each marker quantity, the standard value of the marker quantity and the preset threshold value, determine the touch occurrence zone;

[0051] Step S303, stop scanning the non-touch occurrence zone.

[0052] Step S304, scanning the touch occurrence area to locate at least one touch point.

[0053] Through a method for locating touch points disclosed in Embodiment 3 of the present...

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Abstract

The invention discloses a touch point positioning method and device and an electronic device. The method is applied to position a touch area. The touch area includes a plurality of partitions. The method includes: detecting a current value of each flag of each partition and acquiring a standard value of each flag and a preset threshold; determining the touched partition according to the current value of each flag, the standard value of each flag and the preset threshold; scanning the touched partition to position at least one touch point. The invention further discloses the touch point positioning device and the electronic device. The touch point positioning method and device and the electronic device have the advantages that the touched partition is determined and scanned to position the touch point, smaller area is scanned, scanning time is shortened, and touch points can be positioned more efficiently.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a method, device and electronic equipment for locating touch points. Background technique [0002] Touch screen is currently the most simple, convenient and natural human-computer interaction tool, which is mainly used in public information inquiry, industrial control, military command, electronic games, ordering songs and dishes, multimedia teaching and so on. [0003] Touch screens mainly include resistive touch screens and capacitive touch screens. Capacitive touch screen (Capacity Touch Panel) is to paste a layer of transparent metal conductive substance on the glass surface, and use the principle of human body current induction to work. When a finger touches the touch screen, the scanning lines are scanned line by line from the X-axis direction and the Y-axis respectively to detect the amount of capacitance change, and the position of the touch point can be determined...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/041661
Inventor 王香春王徐鹏
Owner SHANGHAI AVIC OPTOELECTRONICS
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