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Gain compensation detection method and terminal equipment of curved surface fingerprint sensor

A fingerprint sensor and gain compensation technology, applied in the field of fingerprint identification, can solve problems such as increased product cost and limited OLED display capacity, and achieve the effect of overcoming fingerprint signal distortion and facilitating accuracy

Active Publication Date: 2021-11-12
SHENZHEN FUSHI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, installing an optical fingerprint recognition module under the screen will increase the cost of the product, and is also limited by the production capacity of OLED displays.

Method used

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  • Gain compensation detection method and terminal equipment of curved surface fingerprint sensor
  • Gain compensation detection method and terminal equipment of curved surface fingerprint sensor
  • Gain compensation detection method and terminal equipment of curved surface fingerprint sensor

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0035] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances; in other words, the described ...

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Abstract

The present application provides a detection method for gain compensation of a curved surface fingerprint sensor, comprising: acquiring a sensing signal generated by the curved surface fingerprint sensor in a test environment, the sensing signal at least including the sensing signal of each first coordinate point ; According to the sensing signal, the sensing signal of the first coordinate point of each row is valued to obtain a plurality of row sensing signals; the first gain compensation reference value of the first coordinate point of each row is set; according to the first coordinate of each row The multiple relationship between the line sensing signal corresponding to the point one-to-one and the first gain compensation reference value obtains a plurality of first gain compensation corresponding to the first coordinate points of the plurality of rows; and outputting the plurality of First gain compensation. In addition, the present application also provides a terminal device, a method for controlling the gain of a curved fingerprint sensor, a curved fingerprint sensor, and an electronic device.

Description

technical field [0001] The present application relates to the technical field of fingerprint identification, and in particular to a method for detecting a gain compensation of a curved surface fingerprint sensor and a terminal device. Background technique [0002] In order to improve security and user convenience, more and more electronic devices such as mobile communication devices and portable tablet computers have adopted biometric identification systems. Especially the capacitive fingerprint chip, due to its small structure and stable performance, has been more and more recognized by customers and has been widely promoted. [0003] With the popularization of full-screen technology and fingerprint recognition technology in mobile terminals, on modern mobile portable devices, an optical fingerprint recognition module is usually set at the bottom of the screen to perform the fingerprint recognition function. However, installing an optical fingerprint recognition module und...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06K9/00G06F3/044
CPCG06F3/0418G06F3/044G06V40/13
Inventor 杜俊涛
Owner SHENZHEN FUSHI TECH CO LTD
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