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An extension structure of a capacitive 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: 2016-04-27
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • An extension structure of a capacitive touch bar
  • An extension structure of a capacitive touch bar
  • An extension structure of a capacitive touch bar

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Embodiment Construction

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

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

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

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

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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 polar plates. Background technique [0002] As attached figure 2 Shown is a schematic diagram of the structure of a single-electrode capacitive touch strip in the prior art. The scroll bar can use 5 to 8 discrete sensor segments, each sensor segment is closely adjacent to the next sensor segment, and each segment needs to be connected to the capacitance-to-digital converter (CDC) of a single-electrode sensor, for example, to ADI A CIN input pin on the AD7147 or AD7148 single-electrode capacitance conversion chip. A human finger forms several capacitances with several sensor segments. When the user moves the finger along the scroll bar, more than one sensor segment is activated at the same time. The capacitance-digital conversion result of each segment is subjected to some interpolation operation to calculate the finger The ...

Claims

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Application Information

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