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Lens-pinhole array designs in ultra thin under-screen optical sensors for on-screen fingerprint sensing

An optical sensor and optical detector technology, applied in optics, nonlinear optics, acquisition/organization of fingerprints/palmprints, etc., can solve the problems of cumbersome users in the password recovery process

Active Publication Date: 2020-06-19
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, such a password recovery process is cumbersome for the user in various situations and has various practical limitations and inconveniences

Method used

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  • Lens-pinhole array designs in ultra thin under-screen optical sensors for on-screen fingerprint sensing
  • Lens-pinhole array designs in ultra thin under-screen optical sensors for on-screen fingerprint sensing
  • Lens-pinhole array designs in ultra thin under-screen optical sensors for on-screen fingerprint sensing

Examples

Experimental program
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Effect test

Embodiment Construction

[0074] An electronic device or system can be equipped with a fingerprint authentication mechanism to increase the security of access to the device. Such electronic devices or systems can include portable or mobile computing devices, such as smartphones, tablets, wrist-worn devices, and other wearable or portable devices, as well as larger electronic devices or systems, such as portable or desktop personal Computers, ATMs, various terminals for commercial or government use to various electronic systems, databases or information systems, and motorized transportation systems including automobiles, ships, trains, airplanes and others.

[0075] Fingerprint sensing is useful in mobile applications and other applications that use or require secure access. For example, fingerprint sensing can be used to provide secure access to mobile devices and secure financial transactions including online shopping. It is desirable to include robust and reliable fingerprint sensing for mobile devi...

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Abstract

A device (200, 700) for providing on-screen optical sensing of fingerprints by using an under-screen optical sensor module (600a) for improved optical fingerprint sensing is presented. The optical sensor module (600a) includes (1) an optical sensor array (621) of optical detectors to detect light that carries a fingerprint pattern, (2) a pinhole layer (920a, 617i) structured to include an array ofpinholes and located above the optical sensor array (621) to spatially filter incident light to be detected by the optical detectors; and (3) a lens layer (617h) structured to include an array of lenses formed above the pinhole layer (920a, 617i) where the lenses are spatially separated and positioned so that one lens is placed above one corresponding pinhole (951, 959) in the array of pinholes and different lenses in the lens array are placed above different pinholes (951, 959) in the array of pinholes, respectively, to allow the optical sensor array (621) to receive and detect the incidentlight.

Description

[0001] Cross References to Related Applications [0002] This patent document requires the application number 62 / 742,900 filed by the applicant Shenzhen Goodix Technology Co., Ltd. on October 8, 2018, and the title of the invention is "Lens in an off-screen optical sensor for on-screen fingerprint sensing - Priority and benefit of U.S. Provisional Application for "Pinhole Array Design", the disclosure of which is incorporated by reference as part of the disclosure of this patent document. technical field [0003] This patent document relates to the sensing of fingerprints and one or more sensing operations that perform measurements of other parameters in electronic devices or systems, including portable devices such as mobile devices or wearable devices, and larger systems. Background technique [0004] Various sensors can be implemented in an electronic device or system to provide certain desired functionality. There is a growing need for secure access to computers and com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/1382G06V40/1324G06V40/1365G06V40/15G06V40/14G06V40/1394G02F1/13338G06V40/1318G06V40/1329G06V40/1341
Inventor 何毅皮波
Owner SHENZHEN GOODIX TECH CO LTD