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Capacitive sensor, capacitive sensing device, and electronic device

A capacitive sensor and capacitive technology, applied in the field of sensing, can solve the problems of high manufacturing cost of capacitive sensors and low sensing accuracy of capacitive sensors, and achieve the effect of low manufacturing cost and high sensing accuracy

Active Publication Date: 2017-03-22
柳州梓博科技有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the passivation layer between the protective cover or coating layer (Coating layer) and the sensing electrode, the sensing accuracy of the capacitive sensor is relatively low. In addition, due to the need to set the protective cover or coating Layer (Coating layer), also causes the manufacturing cost of described capacitive sensor to be higher

Method used

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  • Capacitive sensor, capacitive sensing device, and electronic device
  • Capacitive sensor, capacitive sensing device, and electronic device
  • Capacitive sensor, capacitive sensing device, and electronic device

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Embodiment Construction

[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. For convenience or clarity, the thickness and size of each layer shown in the drawings and the number of related elements may be exaggerated, omitted, or schematically shown. Also, the size of elements does not entirely reflect an actual size, and the number of related elements does not entirely reflect an actual number. Due to reasons such as different sizes of the drawings, the numbers of the same or similar or related elements ...

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Abstract

The present invention provides a capacitive sensor, a capacitive sensing device, and an electronic device. The capacitive sensor includes an insulating substrate, a plurality of sensing units and a passivation layer. The insulating substrate includes a first surface and a second surface disposed opposite to the first surface. The plurality of sensing units are formed on a second surface of the insulating substrate. Each of the sensing units comprises: a sensing electrode formed on the second surface of the insulating substrate; a first insulating layer formed on the sensing electrode, the first insulating layer being provided with a through hole leading to the sensing electrode; and a sensing circuit formed on the first insulating layer and connected to the sensing electrode through the through hole. The passivation layer is formed on the sensing circuit. The capacitive sensing device comprises the capacitive sensor. The electronic device comprises the capacitive sensor.

Description

technical field [0001] The invention relates to the field of sensing technology, in particular to a capacitive sensor, a capacitive sensing device, and electronic equipment. Background technique [0002] With the development of society, more and more electronic devices (such as: mobile phones, tablet computers, wearable devices, and various smart products such as smart homes) are generally equipped with one or more sensors. The sensors include, for example, a touch sensor that senses a user's touch operation, a biological information sensor that senses biological information of a human body, and the like. Currently, touch sensors, biological information sensors, etc. mostly use capacitive sensors to perform sensing operations. [0003] Taking a biological information sensor as an example, generally, the biological information sensor generally includes a substrate, a sensing circuit disposed on the substrate, a sensing electrode disposed on the sensing circuit, and a sensing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044G06F3/041G06K9/00
CPCG06F3/0412G06F3/044G06F2203/04111G06V40/1306G06F3/0443
Inventor 李问杰
Owner 柳州梓博科技有限公司
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