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A method and device for testing the accuracy of a touch screen

A test method and test device technology, which are applied in error detection/correction, data processing input/output process, instruments, etc., can solve problems such as difficulty in finding subtle differences, inability to distribute test points evenly, and inability to test touch screen accuracy. , to achieve the effect of improving the accuracy

Active Publication Date: 2016-03-02
GUANGZHOU SHIRUI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The subjective evaluation method has the disadvantage that the extracted test points cannot be evenly distributed to the entire touch panel, and it is difficult to find subtle differences by visual comparison
In the click detection method, the inspector clicks the button or icon to determine whether the corresponding function is realized. The click detection method is more difficult to find the difference between the response point and the contact position
[0005] The above two methods cannot accurately test the accuracy of the touch screen.

Method used

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  • A method and device for testing the accuracy of a touch screen
  • A method and device for testing the accuracy of a touch screen
  • A method and device for testing the accuracy of a touch screen

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Embodiment Construction

[0025] The present invention will be described below in conjunction with the accompanying drawings.

[0026] This invention proposes a test method for the accuracy of the touch screen, please refer to figure 1 , including the steps:

[0027] S101. Establish a virtual grid on the touch screen, and use the intersection of the virtual grid as a test point;

[0028] The step of establishing a virtual grid may be: according to the diameter of the input touch object and the number of test points, a virtual grid is established on the touch screen, and the test points are located at intersections of the grid. The size of the test point is the same as the diameter of the touch object, the number of the test point is the same as the input value, and is evenly distributed in the effective touch area of ​​the entire touch panel. Each test point has a theoretical coordinate value. A schematic diagram of the established virtual grid can be found in figure 2 , the small dots in the figu...

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Abstract

The invention provides a test method for accuracy of a touch screen, which comprises the steps as follows: creating a virtual grid on the touch screen, using intersection points of the virtual grid as test points; acquiring a responsive real-time coordinate of the touch screen when each test point is clicked on; comparing difference values of the various real-time coordinates and corresponding theoretic coordinates of the test points; judging whether the accuracy of the touch screen meets the requirement or not according to the various difference values; and sending out different warnings according to different judgment results. The invention further provides a test device for the accuracy of the touch screen, which can accurately test the accuracy of the touch screen.

Description

technical field [0001] The invention relates to the field of touch screen detection, in particular to a method and device for testing the accuracy of a touch screen. Background technique [0002] More and more touch screen technology should be used in computers, mobile terminals and various handheld devices. It is currently the most simple, convenient and natural way of human-computer interaction. Users only need to touch the icon or text lightly to realize the operation of the device. [0003] Among the performance indicators of the touch screen, accuracy is the most important one, which directly affects the use effect of the touch screen and customer experience. Accuracy reflects the deviation between the touch point and the touch screen response cursor. This indicator will be included in the design requirements of the touch screen and in the technical documents provided to users. Accuracy is more and more widely used by users to evaluate the performance of the touch sc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/00G06F3/041
Inventor 张静
Owner GUANGZHOU SHIRUI ELECTRONICS
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