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Resistive touch screen calibration method and corresponding resistive touch screen equipment

A calibration method and touch screen technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of changes in the resistance characteristics of the touch screen, failure to achieve calibration, etc.

Active Publication Date: 2014-12-17
江苏世丰企业管理咨询有限公司
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Problems solved by technology

[0012] In the prior art, the entire touch screen is calibrated with the same slope, but with the influence of external factors such as the user's use environment and usage habits, the resistance characteristics of the touch screen change, and non-linear changes occur, so accurate calibration cannot be achieved

Method used

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  • Resistive touch screen calibration method and corresponding resistive touch screen equipment
  • Resistive touch screen calibration method and corresponding resistive touch screen equipment
  • Resistive touch screen calibration method and corresponding resistive touch screen equipment

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Embodiment Construction

[0062] refer to Figure 4 , the resistive touch screen calibration method of the present invention comprises the following steps:

[0063] 401. When the user clicks four calibration points on the display screen, acquire first touch screen coordinates, second touch screen coordinates, third touch screen coordinates, and fourth touch screen coordinates corresponding to the four calibration points;

[0064] 402. Calculate the slopes of the first area and the second area;

[0065] According to the screen coordinates of the first calibration point and the second calibration point and the first touch screen coordinates (X 1adc ,Y 1adc ) and the second touch screen coordinates (X 2adc ,Y 2adc ) to calculate the first calibration slope corresponding to the first area, and according to the screen coordinates of the third calibration point and the fourth calibration point and the third touch screen coordinates (X 3adc ,Y 3adc ) and the fourth touch screen coordinates (X 4adc ,Y ...

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Abstract

The embodiment of the invention discloses a resistive touch screen calibration method and corresponding resistive touch screen equipment. According to the invention, the calibration gradient of a first area is obtained when a point to be calibrated is arranged in the first area to calibrate the point to be calibrated and the calibration gradient of a second area is obtained when the point to be calibrated is arranged in the second area to calibrate the point to be calibrated by acquiring the screen coordinates of two calibration points in the first area and the two calibration points in the second area on a screen and calculating the calibration gradient of the first area and the second area; and the invention can reduce the repeated calibration frequency of a touch screen and prolong the time for stable use, so that a resistive touch screen is more accurately calibrated and the user experience is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a resistive touch screen calibration method and a corresponding resistive touch screen device. Background technique [0002] Resistive touch screens are widely used in various types of devices. The structure of the resistive touch screen consists of two transparent layers, the inner surface of which is evenly coated with a layer of conductive material. When the surface of the resistive touch screen is not under enough pressure, there will be no contact between the top layer and the bottom layer. Taking the four-wire resistive touch screen as an example, its equivalent circuit is as follows figure 1 shown, from figure 1 It can be seen that in the case of no touch, it is non-conductive, so the impedance to the ground cannot be obtained; when the surface of the resistive touch screen is under enough pressure, contact will occur between the top layer and the bottom layer, so that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/045
Inventor 帅军
Owner 江苏世丰企业管理咨询有限公司
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