Sensing unit, touch screen detector and touch device

A touch screen detection and sensing unit technology, applied in the direction of instruments, computing, electrical digital data processing, etc., can solve problems such as interference and submersion of the measured capacitance signal, improve linearity, eliminate screen shielding layer and related processes, and enhance anti-corrosion The effect of interference ability

Inactive Publication Date: 2013-01-30
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, stray capacitance will change with many factors such as temperature, location, internal and ex...

Method used

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  • Sensing unit, touch screen detector and touch device
  • Sensing unit, touch screen detector and touch device
  • Sensing unit, touch screen detector and touch device

Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0022] The embodiment of the present invention proposes a novel self-capacitance detection method. When the sensing unit is touched, the touch point can divide the sensing unit into two resistances, and the self-capacitance detection can be determined by considering these two resistances at the same time. The position of the touch point on the sensing unit. Such as image 3As shown, it is a schematic diagram of the detection principle of the touch device according to the embodiment of the present invention. When a finger touches the se...

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PUM

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Abstract

The invention provides a sensing unit, a touch screen detector and a touch device. The touch device comprises a substrate, a plurality of non-crossing sensing units and a detection module. The sensing units are formed on the substrate. Each sensing unit is provided with first electrodes and second electrodes opposite to each other and comprises a plurality of first structures and a plurality of second structures, and the first structures are connected end to end through the second structures. By the use of the sensing unit, the touch screen and the touch device, signal-to-noise ratio of a circuit can be increased effectively, circuit noise can be lowered, and sensing linearity can be improved.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of electronic equipment, in particular to a sensing unit, a touch screen detection device and a touch control device. Background technique [0002] At present, the application range of touch screen has rapidly expanded from the small commercial market such as bank automatic teller machines and industrial computers to mobile phones, PDA (personal digital assistant), GPS (global positioning system), PMP (MP3, MP4, etc.), and even tablet computers. and other mass consumer electronics fields. The touch screen has the advantages of simple, convenient and humanized touch operation, so the touch screen is expected to become the best interface for human-computer interaction and has been widely used in portable devices. [0003] Capacitive touch screens are generally divided into two categories: self-capacitance and mutual capacitance. Such as figure 1 Shown is a structural diagram of a c...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/045
Inventor 李振刚黄臣杨云
Owner BYD CO LTD
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