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Optical sensor for integration in a display

An optical sensor and display technology, applied in the field of optical sensors, can solve problems such as complicated manufacturing, detracting from user experience, and difficulty in forming a flush surface

Active Publication Date: 2018-08-03
FINGERPRINT CARDS ANACATUM IP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The need for dicing makes it difficult to create a flush surface on the front of the device, detracting from the user experience and complicating manufacturing
The presence of mechanical buttons also takes up valuable device real estate

Method used

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  • Optical sensor for integration in a display
  • Optical sensor for integration in a display
  • Optical sensor for integration in a display

Examples

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Embodiment Construction

[0023] The following detailed description is exemplary in nature and is not intended to limit the disclosure or the application and uses of the disclosure. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary, accompanying drawings or the following detailed description.

[0024] Referring to the drawings, and as described in greater detail herein, embodiments of the present disclosure provide systems and methods for optically imaging an input object, such as a fingerprint. In particular, systems and methods are described wherein the optical sensor includes one or more reflective surfaces and apertures to limit the angle of light reaching the detector elements such that the light reaching each detector element corresponds to a smaller area on the imaged object . The combination of aperture and reflective surface acts as a folded collimator that minimizes the thickness of the dete...

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Abstract

Systems and methods for optical imaging are disclosed. An optical sensor for imaging a biometric input object on a sensing region includes a transparent layer having a first side and a second side opposite the first side; a first set of apertures disposed above the first side of the transparent layer; a reflective layer disposed below the second side of transparent layer configured to receive light transmitted through the first set of apertures and to reflect the received light; and a plurality of detector elements positioned to detect the reflected light.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application Serial No. 62 / 262,863 (filed December 3, 2015, entitled "Displays Integrating Optical Fingerprint Sensors with Transparent Layers"), the entire contents of which are expressly incorporated by reference. [0003] This application is also related to U.S. Patent Application Serial No. 15 / 087785, entitled "Displays Integrating Optical Fingerprint Sensors with "Optical Sensors for Integration Above Display Backplanes"), the entire contents of which are expressly incorporated by reference. technical field [0004] The present disclosure relates generally to optical sensors, and more particularly to optical sensors that may be integrated into display stacks. Background technique [0005] Object imaging is useful in a variety of applications. For example, a biometric identification system images a biometric object for authentication and / or verificatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/04G01J1/02G06K9/00
CPCG02F1/13318G02F1/13338G02F1/133512G06V40/1318G01J1/0271G01J1/0437G06V40/12G06V40/1359G06V40/1341G02F1/133514G02F1/133528G02F1/133536G02F1/1368
Inventor P.维克波尔德特P.史密斯A.A.富马尼M.米恩科
Owner FINGERPRINT CARDS ANACATUM IP AB