Touch screen coordinates calibration method, device thereof and terminal device

A touch screen, calibration method technology, applied in the input/output process of data processing, instruments, electrical digital data processing and other directions, can solve the problem of no automatic detection of coordinate deviation, touch screen coordinate deviation and other problems

Inactive Publication Date: 2011-08-17
HUAWEI DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the touch screen does not have the function of automatically detecting the coordinate deviation. The user can only know that there is a deviation in the coordinates of the touch screen when the user feels that there is always an error when clicking the same point on the touch screen, and the touch screen cannot respond correctly. Manual touch calibration is required.

Method used

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  • Touch screen coordinates calibration method, device thereof and terminal device
  • Touch screen coordinates calibration method, device thereof and terminal device
  • Touch screen coordinates calibration method, device thereof and terminal device

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Embodiment Construction

[0025] In order to make the object, technical solution, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] The schematic flow chart of the method for calibrating the coordinates of the touch screen in the embodiment of the present invention is as follows: figure 2 As shown, the calibration method includes the following steps:

[0027] Step 21, setting at least one input sampling area on the touch screen, and each input sampling area includes a plurality of liquid crystal display LCD pixels;

[0028] Step 22. Obtain the first LCD ...

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Abstract

The invention provides a touch screen coordinates calibration method, which comprises the following steps of: setting at least one input sampling region on a touch screen, wherein each input sampling region comprises a plurality of liquid crystal display (LCD) pixel points; obtaining a corresponding first LCD screen coordinate of a first LCD pixel point triggered by clicking the input sampling region by a user within a first period of time; obtaining a corresponding second LCD screen coordinate of a second LCD pixel point triggered by clicking the input sampling region by the user within a second period of time; determining a coordinate deviation value between the first LCD pixel point and the second LCD coordinate pixel point according to the first LCD screen coordinate and the second LCD screen coordinate; and performing touch calibration when the coordinate deviation value is not less than a predetermined coordinate deviation threshold. The invention further provides a touch screen coordinates calibration device and a mobile terminal. With the method, the device thereof and the mobile terminal, the deviated touch screen coordinates can be calibrated in time.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a method, device and terminal equipment for calibrating coordinates of a touch screen. Background technique [0002] More and more touch screens are used in the field of mobile terminals. The touch screen has the characteristics of fast, flexible, high resolution and long service life. The touch screen can be used as a simulated keyboard, which is more flexible than ordinary keyboards. There are also more and more types of touch screens, including vector pressure sensing technology touch screens, resistive technology touch screens, capacitive technology touch screens, infrared technology touch screens and surface acoustic wave technology touch screens. [0003] Usually, the touch screen is closely matched with the surface of the LCD (Liquid Crystal Display, LCD) screen to form a touch screen. The coordinates of the touch screen become the LCD screen coordinates correspond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 于雪松
Owner HUAWEI DEVICE CO LTD
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