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Projected capacitive type touch sensor

A technology of touch sensor and projected capacitance, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc. It can solve problems such as complex production procedures and achieve the effect of simple technology

Active Publication Date: 2013-06-05
HANNSTAR DISPLAY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the sensing array 9 is a double layer structure, which requires a relatively complicated production procedure during production.

Method used

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  • Projected capacitive type touch sensor
  • Projected capacitive type touch sensor
  • Projected capacitive type touch sensor

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Embodiment Construction

[0024] In order to make the above and other objects, features, and advantages of the present invention more apparent, a detailed description will be given below with reference to the accompanying drawings. In the description of the present invention, the same components are denoted by the same symbols and will be described here.

[0025] Please refer to figure 2 As shown, the projected capacitive touch sensor 1 according to the embodiment of the present invention includes a substrate 11 , a plurality of sensing units 12 , a processing unit 13 and a plurality of wires 141 - 144 . The substrate 11 can be formed of glass, polymer film or other known suitable materials. The plurality of sensing units 12 include an electrode layer 120, which is, for example, but not limited to, a patterned indium tin oxide layer (Indium Tin Oxide, ITO), antimony tin oxide layer (Antimony TinOxide, ATO) Or fluorine tin oxide layer (Fluorine Tin Oxide, FTO). The plurality of sensing units 12 can ...

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Abstract

The invention discloses a projected capacitive type touch sensor comprising a substrate, a plurality of electrode layers and a plurality of dielectric layers. The plurality of electrode layers are arranged on the substrate along a first direction. Each electrode layer is provided with at least one dielectric layer, and the dielectric layer has different widths along a second direction.

Description

technical field [0001] The invention relates to a touch device, in particular to a projected capacitive touch sensor. Background technique [0002] With the popularization of mobile devices, human-machine interface devices are also widely used in mobile devices such as mobile assistants (PDAs), mobile phones and notebook computers, so that their operations are more user-friendly; Humanized operation plays an important role. [0003] At present, the types of touch screens are mainly divided into four types: resistive, capacitive, infrared, and acoustic. Among them, the projected capacitive touch screen is less affected by moisture and the material of the touch surface is less sensitive to the touch detection mechanism. There is no function on it, and it is more suitable for mobile devices used outdoors. [0004] The projected capacitive touch screen mainly detects the capacitance change of the electrode plate caused by a conductive object (conductive object) approaching the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
Inventor 阮一中张弘昌吴昭慧
Owner HANNSTAR DISPLAY CORPORATION
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