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One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board

A technology of capacitive touch screen and positioning method, applied in the direction of electric digital data processing, input/output process of data processing, instruments, etc., can solve the problems of high production cost, many manufacturing processes, expensive price, etc., and achieve reduction of production cost and reduction The effect of material consumption and simplification of production process

Inactive Publication Date: 2009-10-21
SUPER PIONEER
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AI Technical Summary

Problems solved by technology

[0003] Since the existing capacitive touch screen / touch panel needs to be equipped with X / Y upper and lower layers of ITO (transparent conductive material) lines, there are many manufacturing processes and high production costs, and the price is far more expensive than the currently widely used resistive touch screen. Promotion and application of touchpad

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  • One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board
  • One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board
  • One-dimensional contact point positioning method of capacitive touch screen/board and capacitive touch screen/board

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Embodiment Construction

[0015] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0016] The one-dimensional contact positioning method of the capacitive touch screen / board of the present invention is to arrange a single-layer ITO line on the substrate, and each ITO line of the ITO line has a certain capacitance value, and forms an interactive cross arrangement, but is not electrically connected. Graphics; when a finger touches the display screen, the touch IC first determines the position of the touch point in the Y-axis direction according to whether the total capacitance value of the multiple ITO lines touched by the finger changes, and then, according to the capacitance value of each line accounted for by the finger touch The determined ratio of the total capacitance of the ITO line is used to determine the position of the touch point in the X-axis direction.

[0017] attached figure 1 Sh...

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Abstract

The invention discloses a one-dimensional contact point positioning method of a capacitive touch screen / board and the capacitive touch screen / board. The one-dimensional contact point positioning method of the capacitive touch screen / board comprises the following steps: a single-layer ITO circuit is arranged on a base material, and each ITO line of the ITO circuit has determinate capacitance value and forms a figure with alternate crossing arrangement but no electrical connection; and when a finger touches the screen / board, a touch-control IC firstly determines the position of a touch point at the direction of Y axis according to whether the capacitance value of a plurality of ITO lines touched by the finger changes and then determines the position of the touch point at the direction of X axis according to the ratio of the capacitance value of each line to the total capacitance value of the ITO lines determined when the finger touches the screen / board. In the invention, the capacitive touch screen / board is changed from the traditional double-layer ITO circuit positioning into the single-layer ITO circuit positioning, thus not only greatly reducing material consumption, but also simplifying production process and reducing production cost simultaneously, and being beneficial to the large-scale promotion and application of the capacitive touch screen / board.

Description

Technical field: [0001] The invention relates to the technical field of capacitive touch screens / touch panels, in particular to the technical field of contact positioning of capacitive touch screens and touch panels. Background technique: [0002] The capacitive touch screen / touch panel works by using the current induction of the human body. The base material of the traditional capacitive touch screen is provided with X / Y upper and lower layers of ITO (transparent conductive material) lines. Its working principle is to detect the change of the contact capacitance value of the XY axis of the upper and lower layers, and determine the position of the finger touch in the XY axis direction after being processed by the touch IC, and then determine the point coordinates of the finger touch point on the touch screen / touch board . [0003] Since the existing capacitive touch screen / touch panel needs to be equipped with X / Y upper and lower layers of ITO (transparent conductive materi...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 杨文振
Owner SUPER PIONEER
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