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Touch screen control method and device and electronic equipment

A control method and touch screen technology, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problem of false alarm points of temperature changes, avoid false alarm points, improve experience, The effect of eliminating the influence of the judgment result

Pending Publication Date: 2021-05-07
FUZHOU BOE OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a control method for a touch screen, a control device for a touch screen, and an electronic device, so as to solve the problem of false alarm points caused by temperature changes in the touch screen in the prior art

Method used

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  • Touch screen control method and device and electronic equipment
  • Touch screen control method and device and electronic equipment
  • Touch screen control method and device and electronic equipment

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Experimental program
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Effect test

Embodiment 1

[0028] A method for controlling a touch screen provided by Embodiment 1 of the present invention is introduced in detail.

[0029] The touch screen in the embodiment of the present invention may include a plurality of touch units, and each touch unit includes a bridge such as a Wheatstone bridge formed by connecting a plurality of touch subunits in series.

[0030] For example, refer to figure 1 As shown, the bridge can be formed by connecting four touch subunits (first touch subunit A, second touch subunit B, third touch subunit C, and fourth touch subunit D) in series Wheatstone bridge, the touch subunit in the Wheatstone bridge satisfies the following relationship, RA*RB=RC*RD, RA is the resistance value of the first touch subunit A, and RB is the second touch subunit The resistance value of B, RC is the resistance value of the third touch subunit C, and RD is the resistance value of the fourth touch subunit D. There is a first node J1 between the first touch subunit A an...

Embodiment 2

[0044] A method for controlling a touch screen provided in Embodiment 2 of the present invention is introduced in detail.

[0045] The touch screen in the embodiment of the present invention includes a plurality of touch units, and each touch unit includes a bridge such as a Wheatstone bridge formed by connecting a plurality of touch subunits in series.

[0046] For example, refer to figure 1 As shown, the bridge can be formed by connecting four touch subunits (first touch subunit A, second touch subunit B, third touch subunit C, and fourth touch subunit D) in series Wheatstone bridge, the touch subunit in the Wheatstone bridge satisfies the following relationship, RA*RB=RC*RD, RA is the resistance value of the first touch subunit A, and RB is the second touch subunit The resistance value of B, RC is the resistance value of the third touch subunit C, and RD is the resistance value of the fourth touch subunit D. There is a first node J1 between the first touch subunit A and t...

Embodiment 3

[0094] A touch screen control device provided in Embodiment 3 of the present invention is introduced in detail.

[0095] The touch screen in the embodiment of the present invention may include a plurality of touch units, and each touch unit includes a bridge such as a Wheatstone bridge formed by connecting a plurality of touch subunits in series.

[0096] refer to Figure 5 , shows a schematic structural diagram of a touch screen control device in Embodiment 3 of the present invention. The controls of the touch screen may include:

[0097] The first voltage difference acquisition module 510 is configured to acquire the first voltage output end and the second voltage of the electric bridge corresponding to the first driving voltage when the first driving voltage and the second driving voltage are respectively applied to the voltage input end of the electric bridge The first voltage difference between the output terminals.

[0098] The first equivalent resistance determining ...

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Abstract

The invention provides a touch screen control method and device and electronic equipment, and the method comprises the steps of respectively applying a first driving voltage and a second driving voltage to a voltage input end of a bridge, and obtaining a first voltage difference value between a first voltage output end and a second voltage output end of the bridge corresponding to the first driving voltage; determining a first equivalent resistance value of the bridge corresponding to the first driving voltage at the current temperature according to the first driving voltage, the second driving voltage and a preset equation; determining a first compensation voltage value corresponding to the current temperature according to the first equivalent resistance value, the first voltage difference value and a preset formula; and determining whether to trigger a touch unit corresponding to the bridge according to the first voltage difference value and the first compensation voltage value. According to the invention, the influence of the temperature change on the judgment result of the control chip of the touch screen can be eliminated, the occurrence of a false alarm point condition of the touch screen is effectively avoided, and the experience of a user in using the touch screen is greatly improved.

Description

technical field [0001] The present invention relates to the technical field of electronic equipment, in particular to a control method of a touch screen, a control device of a touch screen and an electronic equipment. Background technique [0002] At present, the market's functional requirements for display screens are not only for data display, but also for human-computer interaction. Therefore, the touch function of the display screen is essential. [0003] Indium tin oxide (ITO, Indium Tin Oxides) material is usually used as the material of the touch unit in the existing touch screen used for the display screen. When the temperature changes due to heat generation, the resistance of the indium tin oxide material also changes accordingly. Therefore, for the same driving voltage, at different temperatures, the touch unit will output different voltage signals, and the touch unit will output wrong voltage signals, which may cause the control chip of the touch screen to misjud...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0416G06F3/0412G06F3/0418G06F3/045G06F3/046G06F3/0444
Inventor 余仁惠谢洪洲胡晔郑上涛查文陈信陈美珍侯清娜刁凯
Owner FUZHOU BOE OPTOELECTRONICS TECH CO LTD