Fingerprint key structure, key pressure detection method and electronic device
A button and fingerprint technology, applied in the electronic field, can solve the problems of limited functions, occupy a large space, and cannot meet the requirements of light and thin smart terminals, etc., and achieve the effect of long service life and small space occupation
Active Publication Date: 2017-08-18
SHENZHEN GOODIX TECH CO LTD
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Problems solved by technology
[0003] 1. The pressure that can be achieved by this design method is only one level, correspondingly it can only correspond to a single operation, and the functions that can be defined are limited;
[0004] 2. For smart terminals with fewer and fewer buttons, the buttons configured are all buttons with high frequency of use, and the mechanical buttons are easily damaged;
[0005] 3. The design of adding Dome mechanical buttons at the bottom of the fingerprint recognition module will result in a thicker button structure as a whole and take up a lot of space, which cannot meet the thin and light requirements of smart terminals
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[0034] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments, and the preferred embodiments of the present invention are shown in the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein, on the contrary, these embodiments are provided for the purpose of making the disclosure of the present invention more thorough and comprehensive. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the prese...
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The embodiment of the present invention belongs to the field of electronics and relates to a fingerprint key structure, a key pressure detection method, and an electronic device, the fingerprint key structure includes a laminated structure, wherein the laminated structure comprises a cover plate, a chip layer, a wiring layer, a filling layer and a support plate electrode which are sequentially stacked, and the bottom of the wiring layer is provided with a pressure sensor, The pressure sensor forms a capacitor with the support plate electrode. By the embodiment of the present invention, a plurality of gradation pressures can be realized to define different key functions while the fingerprint keys are thinner, the space is less and the service life is longer.
Description
technical field [0001] The embodiments of the present invention belong to the field of electronics, and in particular relate to a fingerprint button structure, a method for detecting button pressure, and electronic equipment. Background technique [0002] At present, in the field of smart terminals, fingerprint recognition and buttons are often combined to form fingerprint buttons. The fingerprint buttons of existing smart terminals are to add Dome (disc) mechanical buttons at the bottom of the fingerprint recognition module to realize fingerprint recognition and pressing functions. . Using the design of adding Dome mechanical buttons at the bottom of the fingerprint recognition module to realize the fingerprint recognition and pressing functions has at least the following problems: [0003] 1. The pressure that can be achieved by this design method is only one level, correspondingly it can only correspond to a single operation, and the functions that can be defined are lim...
Claims
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Login to View More IPC IPC(8): G06K9/00H03K17/96
CPCH03K17/964G06V40/1306
Inventor 蔡军
Owner SHENZHEN GOODIX TECH CO LTD