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Touch-control system and method for touch detection

A touch system and touch technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problem that the actual position of the pointer cannot be correctly judged

Inactive Publication Date: 2011-04-27
PIXART IMAGING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the processing circuit 110 cannot correctly determine the actual positions of the pointers 302 and 304

Method used

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  • Touch-control system and method for touch detection
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  • Touch-control system and method for touch detection

Examples

Experimental program
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Effect test

no. 1 example

[0033] The touch system proposed in this embodiment can be reused figure 1 The perspective view shown is for illustration. please refer again figure 1 , in this embodiment, the panel 104 is replaced by a touch panel, and the operation mode of the processing circuit 110 is modified. The touch panel has a touch surface (described in detail later), and the touch panel adopts a touch detection structure, and the touch detection structure is mainly composed of a plurality of horizontal wires arranged in parallel and a plurality of parallel wires. formed by vertical wires, and each horizontal wire is perpendicular to each vertical wire. These horizontal wires are not electrically coupled to any vertical wires, only when the pointer (or other objects) touches the touch surface, the horizontal wires and the vertical wires corresponding to the touch position of the pointer are electrically coupled. In addition, the horizontal wires and the vertical wires are electrically coupled to ...

no. 2 example

[0042] This embodiment proposes another touch system. The difference between this touch system and the touch system of the first embodiment is that the touch panel of this touch system adopts another touch detection structure. The touch detection structure is mainly composed of a plurality of longitudinal wires arranged in parallel. This touch system is detected by Figure 6 to illustrate.

[0043] Figure 6 An explanatory diagram of the touch system of this embodiment performing multi-touch, which takes two-point touch as an example. exist Figure 6 In, the label and figure 1 The same reference numerals in the reference numerals represent the same object, the reference numeral 404 refers to the longitudinal wire, and the reference numerals 406 and 408 both refer to indicators. In addition, the quadrangular area configured with these longitudinal wires 404 is represented as a touch surface. In this example, the shape of the touch surface is rectangular.

[0044] Such as...

no. 3 example

[0048]This embodiment proposes another touch system. The difference between this touch system and the touch system of the first embodiment is that this touch system only has one image detection device. This touch system is detected by Figure 8 to illustrate.

[0049] Figure 8 An explanatory diagram of the touch system of this embodiment performing multi-touch, which takes two-point touch as an example. exist Figure 8 In, the label and figure 1 The ones with the same number in the above represent the same object, the number 402 refers to the horizontal wire, the number 404 refers to the vertical wire, and the numbers 406 and 408 both refer to the indicator. In addition, the quadrilateral area configured with the horizontal wires 402 and the vertical wires 404 is represented as a touch surface. In this example, the shape of the touch surface is rectangular.

[0050] Such as Figure 8 As shown, the processing circuit 110 detects the above two pointers through the horizo...

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Abstract

The invention provides a touch-control system and a method for touch detection. The touch-control system comprises a touch-control panel, at least one image detection device and a processing circuit, wherein the touch-control panel has a touch-control surface and employs a touch-control detection structure comprising at least a plurality of parallel leads, and the image detection device is used for detecting images on the touch-control surface. When two pointers touch the touch-control surface, the processing circuit obtains the position-related information of the pointers through the leads and the image detection device, and gains the actual touch position of the pointers through the detection results obtained by using two detection methods.

Description

technical field [0001] The present invention relates to a touch control system and a touch detection method thereof, and in particular to a touch control system and a touch detection method thereof which can correctly determine the actual position of an indicator without being affected by ghost points. Background technique [0002] figure 1 It is a three-dimensional view of an existing touch-control system. Please refer to figure 1 , the touch system 100 is used to detect the position of a pointer 102 . In addition to the panel 104 , the image detection device 106 , the image detection device 108 and the processing circuit 110 , the touch control system 100 also includes a reflective component 112 , a reflective component 114 and a reflective component 116 . In addition, the rectangular area indicated by reference numeral 118 is the detection area of ​​the touch control system 100 . The processing circuit 110 is electrically coupled to the image detection devices 106 and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
Inventor 高铭璨郑信基
Owner PIXART IMAGING INC
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