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Article locating detector of capacitance touching control panel, and article locating method

A technology of capacitive touch and positioning method, which is used in electrical components, electronic switches, pulse technology, etc.

Active Publication Date: 2009-02-04
ELAN MICROELECTRONICS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Another object of the present invention is to overcome the defects of the existing capacitive touch panel, and provide a new object positioning method for the capacitive touch panel. The technical problem to be solved is to make it unnecessary to use complex calculations The method to locate the objects on the touch panel makes the positioning of the objects on the touch panel easier and thus more suitable for practical use.

Method used

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  • Article locating detector of capacitance touching control panel, and article locating method
  • Article locating detector of capacitance touching control panel, and article locating method
  • Article locating detector of capacitance touching control panel, and article locating method

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Embodiment Construction

[0043] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the following describes the object positioning detector and the object positioning method of the capacitive touch panel according to the present invention with reference to the accompanying drawings and preferred embodiments. The specific implementation, structure, method, steps, features and effects thereof are described in detail as follows.

[0044] The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. Through the description of the specific embodiments, a more in-depth and specific understanding of the technical means and effects adopted by the present invention to achieve the predetermined purpose can be obtained. However, the accompanying drawings are only fo...

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Abstract

The invention relates to an object location detector of a capacitance type touch panel as well as an object location method. The object location detector of the capacitance type touch panel comprises a complex capacitance induction element, a basic negative capacitance compensation element, an analog-digital converter and a microprocessor; the basic negative capacitance compensation element is used to compensate the basic capacitance value of the capacitance induction element so as to obtain the variation of the capacitance value; and the microprocessor is used to calculate the position of the object under touch control according to the variation of capacitance value; and has the advantage of simple location. The object location method of the capacitance type touch panel comprises the following steps: stating an initial value of a sensor; inputting the negative capacitance compensation quantity of a channel; inputting the induction capacitance gain margin of the channel; measuring the capacitance value of the channel; and locating the object under touch control according to the capacitance value of the channel. The method for locating the object on the capacitance type touch panel needs no complex algorithm for locating the object on the touch panel, and makes the location of the object on the touch panel simpler.

Description

technical field [0001] The present invention relates to a capacitive touch panel, in particular to a method that uses a negative capacitance compensation unit to compensate the basic capacitance, so as to reduce the influence of the basic capacitance on the operation dynamic range of the analog-to-digital converter, so that the object positioning of the touch panel can be improved. Easier object location detector and object location method for capacitive touch panel. Background technique [0002] With the development of society and the advancement of technology, various touch panels are widely used in devices such as personal computers and mobile phones. Among them, capacitive touch panels are more and more widely used. [0003] In the existing capacitive touch panel in the past, when positioning an object (such as a finger), a set of analog numbers (digits are digits, the following Both are called digital) conversion values, and the position of the object is determined ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96
Inventor 黄俊中王尊民林俊佑林泽琦
Owner ELAN MICROELECTRONICS CORPORATION
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