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Lengthening structure of capacitive type touch bar

A touch bar and capacitive technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of limited length of capacitive touch bar

Inactive Publication Date: 2013-06-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the limitation of the length of the existing capacitive touch strip, the present invention provides an extended structure of a large-scale segmented capacitive touch strip

Method used

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  • Lengthening structure of capacitive type touch bar
  • Lengthening structure of capacitive type touch bar
  • Lengthening structure of capacitive type touch bar

Examples

Experimental program
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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described below.

[0018] Such as figure 1 , figure 2 , image 3 , implement the extension structure of a kind of capacitive touch bar of the present invention, the extension structure of this touch bar is constituted as follows:

[0019] The extension structure of the capacitive touch strip of the present invention adopts n A corresponding staggered arrangement of capacitive plates different from the prior art constitutes a large-scale touch scroll bar.

[0020] Such as figure 1 As shown, the polar plate of the general touch strip is made of copper foil or conductive material, and its length is much greater than the width of the touch strip. The 1st plate of the touch strip and the 1st n The first plate is a right triangle, the middle n - 2 plates are exactly the same parallelogram, n The pole plates are horizontally aligned and arranged on a straight plane; wherein, one side of the ...

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PUM

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Abstract

A lengthening structure of a capacitive type touch bar is a large-length touch scroll bar formed by n capacitance polar plates arranged in a mutually staggered mode, the capacitance polar plates at two ends of the scroll bar are right triangles in shape, the capacitance polar plates in the middle are a parallelogram in shape, and all the capacitance polar plates are respectively connected to corresponding single electrode capacitance switching circuits. The capacitive type touch bar in the structure guarantees the touch flexibility, widens the effective touch range, and can be applied to a large-area touch screen.

Description

technical field [0001] The invention relates to a capacitive touch strip, in particular to an extended structure using segmented single-electrode capacitive plates. technical background [0002] as attached figure 2 As shown in FIG. 1 , it is a schematic structural diagram of a single-electrode capacitive touch strip in the prior art. Scroll bars can use 5 to 8 discrete sensor segments, each in close proximity to the next, each connected to a capacitance-to-digital converter (CDC) of a single-electrode sensor, for example, to the Analog Devices A CIN input pin on the single-electrode capacitance conversion chip AD7147 or AD7148. The human finger forms several capacitors with several sensor segments respectively. When the user moves the finger along the scroll bar, more than one sensor segment is activated at the same time, and the capacitance-digital conversion results of each segment are interpolated to calculate the finger specific location. [0003] Attached above fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 何小刚吕青
Owner TAIYUAN UNIV OF TECH