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Fingerprint identification device and electronic equipment

A fingerprint recognition and fingerprint technology, applied in character and pattern recognition, computing, computer components, etc., can solve problems such as secondary breakdown of circuit boards, narrow size requirements, unfavorable fingerprint recognition module safety, etc., to ensure reliability and safety, to ensure anti-static, to achieve the effect of electrostatic discharge

Pending Publication Date: 2022-08-05
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, as the thickness of the mobile phone decreases, the size requirements for the fingerprint identification module applied on the side of the mobile phone become narrower and narrower, which will make the ESD protection design on the fingerprint identification module more and more difficult to be compatible.
If no effective ESD discharge path can be generated, the static electricity will accumulate through the parts of the fingerprint identification module such as the reinforcing steel sheet, which may cause a secondary breakdown of the circuit board, or discharge the static electricity to the fingerprint identification module. Other weak positions of the group are even more detrimental to the security of the fingerprint recognition module

Method used

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  • Fingerprint identification device and electronic equipment
  • Fingerprint identification device and electronic equipment
  • Fingerprint identification device and electronic equipment

Examples

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0032] It should be understood that the embodiments of the present application can be applied to optical fingerprint systems, including but not limited to optical fingerprint recognition systems and products based on optical fingerprint imaging. The embodiments of the present application only take the optical fingerprint system as an example for description, but should not be implemented in this application. The examples constitute any limitation, and the embodiments of the present application are also applicable to other systems using optical imaging technology, and the like.

[0033] Existing fingerprint identification modules usually add ESD protection design on the flexible printed circuit (FPC), such as adding a wire ground terminal (GND) design on the edge of the FPC, the reinforcing steel sheet in the fingerprint identificati...

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Abstract

The invention discloses a fingerprint identification device and electronic equipment. The fingerprint identification device comprises a fingerprint sensing chip; the substrate is arranged below the fingerprint sensing chip, the substrate comprises a first connecting area and a first grounding area, the first connecting area is located in the center area of the substrate, the first grounding area is located around the first connecting area and located in the edge area of the substrate, and the fingerprint sensing chip is electrically connected with the substrate through the first connecting area. According to the fingerprint identification device and the electronic equipment, the safety performance of the fingerprint identification device can be improved.

Description

technical field [0001] The present application relates to the technical field of fingerprint identification, and more particularly, to a fingerprint identification device and an electronic device. Background technique [0002] During the use of the capacitive fingerprint identification module, it is necessary to directly touch the fingerprint identification area of ​​the fingerprint identification module with a finger. Since the human body has static electricity, in the process of fingerprint identification, when the finger touches the fingerprint identification area, it will be instantly discharged, which will affect the accuracy and sensitivity of the fingerprint identification module. Therefore, the fingerprint identification module needs a targeted Electro-Static discharge (ESD) protection design during design. [0003] With the development of electronic devices such as existing mobile phones, the size requirements for fingerprint identification modules are becoming mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/13
CPCG06V40/1306
Inventor 陈柏宇肖瑜程雷刚
Owner SHENZHEN GOODIX TECH CO LTD
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