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1.发明授权公开(公告)号：US11847843B2
公开(公告)日：2023-12-19
申请号：US17946553
申请日：2022-09-16
Applicant: Silead Inc.
Inventor： Fengyun Yan , Zhanqi Xie , Yungang Sun , Zhenguo Yang , Xiaochi Zhang
CPC classification number: G06V20/647 , G06V10/10 , G06V40/1318 , G06V40/1347 , G06V40/1365
Abstract: The present disclosure provides an under-screen optical fingerprint identification apparatus and a fingerprint identification method. The under-screen optical fingerprint identification apparatus comprises: a photodetection array which has a photosensitive area on which a photosensitive pixel array is provided, wherein the photosensitive pixel array comprises at least three types of pixels; and a fingerprint contact identification area located above the photodetection array and comprising a light-emitting layer and a cover layer, wherein the cover layer has a contact area, and the light-emitting layer has an identification area corresponding to the contact area, wherein the identification area comprises light-emitting units, each of which comprises a light-transmitting area and at least three light-emitting areas located therearound for emitting detection light of corresponding wavebands, wherein the detection light is reflected by an object to be identified to form signal light which passes through the filter layers and reaches corresponding three types of pixels.
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公开(公告)号：US20220329044A1
公开(公告)日：2022-10-13
申请号：US17533578
申请日：2021-11-23
Applicant: SILEAD Inc.
Inventor： Shujuan Li , Yongsheng Hou , Zhanqi Xie
Abstract: Provided are a vertical-cavity surface-emitting laser, a manufacturing method, a distance measuring device, and an electronic device. The vertical-cavity surface-emitting laser includes a lower electrode, a substrate, a lower Bragg reflector, an active area, a current limiting layer, an upper Bragg reflector, a protective layer, and an upper electrode. The upper electrode includes at least two sub-electrodes, the at least two sub-electrodes are electrically connected, and the at least two sub-electrodes define one or more light-exiting windows. Each sub-electrode is provided with a corresponding light-exiting window so that the luminous power is increased. Each sub-electrode defines the light-exiting window, and a plurality of sub-electrodes are electrically connected so that the distribution uniformity of the light spots is increased, and the quality of the laser beam is improved.
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3.发明申请公开(公告)号：US20230010056A1
公开(公告)日：2023-01-12
申请号：US17946553
申请日：2022-09-16
Applicant: Silead Inc.
Inventor： Fengyun Yan , Zhanqi Xie , Yungang Sun , Zhenguo Yang , Xiaochi Zhang
Abstract: The present disclosure provides an under-screen optical fingerprint identification apparatus and a fingerprint identification method. The under-screen optical fingerprint identification apparatus comprises: a photodetection array which has a photosensitive area on which a photosensitive pixel array is provided, wherein the photosensitive pixel array comprises at least three types of pixels; and a fingerprint contact identification area located above the photodetection array and comprising a light-emitting layer and a cover layer, wherein the cover layer has a contact area, and the light-emitting layer has an identification area corresponding to the contact area, wherein the identification area comprises light-emitting units, each of which comprises a light-transmitting area and at least three light-emitting areas located therearound for emitting detection light of corresponding wavebands, wherein the detection light is reflected by an object to be identified to form signal light which passes through the filter layers and reaches corresponding three types of pixels.
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