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Multipoint positioning method and device for single-conductive-layer touch screen

一种多点定位、触摸屏的技术，应用在电容测量、电数字数据处理、仪器等方向，能够解决不能进行定位、单点触摸加手势触摸电容屏结构简单、不能实现多点触摸等问题，达到提高精度的效果

Active Publication Date: 2012-12-19
FOCALTECH SYST LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing single-layer conductive layer capacitive touch screen has the technical defect of single-point touch plus gesture touch capacitive screen structure is simple but cannot realize multi-point touch and cannot be positioned

Method used

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  • Multipoint positioning method and device for single-conductive-layer touch screen

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Embodiment Construction

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] The embodiment of the invention discloses a multi-point positioning method of a single conductive layer touch screen, so as to realize accurate multi-point positioning of the single conductive layer touch screen.

[0051] Figure 1b A single conductive layer touch screen multi-point positioning method is shown, including:

[0052] The conductive layer of the single conductive layer touch screen is provided with at least two columns of electrode groups, and th...

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Abstract

An embodiment of the invention discloses a multipoint positioning method and device for a single-conductive-layer touch screen, wherein the multipoint positioning method comprises the following steps of: receiving a touch signal, and generating an original matrix which takes a minimal detection unit as a unit according to the triggering of the touch signal; respectively calculating a capacitance change quantity of each minimal detection unit in a touch signal induction region, and extracting the minimal detection unit of which the capacitance change quantity reaches a minimal calculation threshold value and is equal to a capacitance change quantity maximal value; dividing a calculation matrix corresponding to a minimal detection unit to be divided when the capacitance change quantity is more than the minimal detection unit to be divided under a preset condition; and calculating the position of the minimal detection unit with the capacitance change quantity maximal value in the original matrix, searching the minimal detection unit of which the capacitance change quantity reaches the minimal calculation threshold value and is equal to the capacitance change quantity maximal value from the calculation matrix, and calculating the position of the minimal detection unit in the calculation matrix. According to the multipoint positioning method and the multipoint positioning device, disclosed by the invention, the technical effect of multipoint positioning on the single-conductive-layer touch screen is realized.

Description

technical field [0001] The present invention relates to the technical field of touch screen positioning, and more specifically, to a single conductive layer touch screen multi-point positioning method and device. Background technique [0002] Capacitive screen is a rapidly rising screen type after the application of resistive screen, and is widely used in mobile phones and mobile Internet equipment MID. Existing capacitive screens mainly include single-point touch plus gesture touch application forms and multi-point touch application forms: [0003] For the application form of single-point touch plus gesture touch, its capacitive screen is a pair of triangular substrates forming a unit detection unit (such as Figure 1a As shown), the position of human body touch is determined by detecting the capacitance change of the unit detection unit. The structure of the capacitive screen is provided with a conductive layer as a sensing unit. This kind of single-layer conductive layer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0488G06F2203/04104G06F3/044G06F3/0443G01R27/2605
Inventor 王李冬子张文磊李华
Owner FOCALTECH SYST LTD
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