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Touch positioning method and apparatus

A technology of touch positioning and touch area, which can be applied to instruments, electrical digital data processing, input/output process of data processing, etc., and can solve problems such as increasing the computing burden of IC chips.

Inactive Publication Date: 2015-11-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the TP area 01 and the LCM area 02 partially overlap, in the prior art, IC chips usually use two mapping schemes to calculate the coordinate mapping of the overlapping area and the coordinate mapping of the non-overlapping area respectively, which increases the computational burden of the IC chip

Method used

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  • Touch positioning method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiments of the present invention provide a touch positioning method, such as figure 2 shown, including:

[0052] 101. Acquire first coordinate information obtained by a user triggering a first position in a display coordinate system.

[0053] 102. Determine the mapping parameter of the first coordinate information, the mapping parameter includes a compensation coefficient and a proportional coefficient, the proportional coefficient is used to indicate the magnification relationship between the display area and the touch area, and the compensation coefficient is used to indicate the relationship between the display area and the touch area Offset relationship between regions.

[0054] 103. According to the first coordinate information and the mapping parameter, calculate second coordinate information corresponding to the first coordinate information in the touch coordinate system, so as to determine an actual touch position of the user.

[0055] The touch display s...

Embodiment 2

[0072] Embodiments of the present invention provide a touch positioning method, such as Figure 4 shown, including:

[0073] 201. Acquire first coordinate information (X, Y) obtained by a user triggering a first position in a display coordinate system.

[0074] 202. Determine a first compensation coefficient a, a second compensation coefficient b, a first offset coefficient c, and a second offset coefficient d.

[0075] 203. Determine the horizontal axis proportional coefficient K1 and the vertical axis proportional coefficient K2.

[0076] 204. According to the formula: X=K1*(P-a) and Y=K2*(Q-b), calculate the second coordinate information (P, Q) corresponding to the first coordinate information (X, Y) in the touch coordinate system.

[0077] still as image 3 As shown, the first coordinate information of any point Z (that is, the first position) in the display area 02 is (X, Y) L , then, the coordinate information (that is, the second coordinate information) of point Z' ...

Embodiment 3

[0098] An embodiment of the present invention provides a touch positioning device, which is applied to a touch display screen. The touch display screen includes a display area and a touch area. A display coordinate system is set in the display area. The touch area A touch coordinate system is set inside, such as Figure 5 As shown, the device includes:

[0099] An acquisition unit 11, configured to acquire first coordinate information obtained by triggering the first position by the user in the display coordinate system;

[0100] The determining unit 12 is configured to determine a mapping parameter of the first coordinate information, the mapping parameter includes a compensation coefficient and a proportional coefficient, wherein the proportional coefficient is used to indicate the distance between the display area and the touch area an amplification relationship, the compensation coefficient is used to indicate an offset relationship between the display area and the touch ...

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Abstract

The embodiment of the present invention provides a touch positioning method and apparatus, relates to the technical field of touch display and can reduce computation complexity of carrying out coordinate mapping of an IC chip and improve computing efficiency. The method comprises: acquiring first coordinate information obtained after a user triggers a first position in a display coordinate system; determining mapping parameters of the first coordinate information, wherein the mapping parameters include a compensation coefficient and a proportionality coefficient, the proportionality coefficient is used for indicating an amplification relationship between a display region and a touch region and the compensation coefficient is used for indicating an offset relationship between the display region and the touch region; and according to the first coordinate information and the mapping parameters, calculating second coordinate information corresponding to the first coordinate information in the touch coordinate system so as to determine an actual touch position of the user. The method is applied to the touch displaying process of a touch screen.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch positioning method and device. Background technique [0002] A touch screen is an inductive display device that can receive input signals such as contacts. It integrates display functions and touch functions at the same time. The program drives various connecting devices, and creates vivid display effects through the display panel. [0003] Usually, such as figure 1 As shown, the size of the TP (touchpanel) area 01 used to realize the touch function in the touch screen will be larger than the size of the LCM (LCDModule, LCD display module) area 02 used to realize the display function. Assuming that the coordinate system of LCM area 02 is the first coordinate system, and the coordinate system of TP area 01 is the second coordinate system, then, when the user triggers a touch action at coordinate A of the first coordinate system according to the display scre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 柏健王谦何全华范利涛邓立广金亨奎
Owner BOE TECH GRP CO LTD