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Patent Agency Ranking
公开(公告)号：US20210264181A1
公开(公告)日：2021-08-26
申请号：US16985888
申请日：2020-08-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjin Park , Changeun Kang , Moonkyu Song , Seongwook Song
Abstract: A display device is provided. The display device includes a display panel including a pixels; a fingerprint recognition sensor including an image sensor disposed under a first surface of the display panel; and a processor to control the display panel and the fingerprint recognition sensor. A portion of display pixels are configured to emit light in a fingerprint recognition mode. The image sensor includes pixels, at least a portion of the pixels are phase detection pixels. The image sensor generates a fingerprint image signal and a fingerprint phase signal based on reflected light received while the portion of display pixels emit light. The main processor is further configured to perform an anti-spoofing operation or a fingerprint authentication operation based on the fingerprint image signal and the fingerprint phase signal.
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公开(公告)号：US20220217291A1
公开(公告)日：2022-07-07
申请号：US17561050
申请日：2021-12-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungmin Kim , Changeun Kang , Hoyong Na , Jihun Shin , Youngtae Jang , Youngkyun Jeong
Abstract: An image sensor includes a pixel array, in which a plurality of pixels are arranged, and a row driver for controlling the plurality of pixels. Each of the plurality of pixels includes a first photodiode, a second photodiode having a larger light-receiving area than the first photodiode, a first floating diffusion node in which charges generated by the first photodiode are stored, a first capacitor connected to the first floating diffusion node, and a capacitor control transistor having one end connected in series to the first capacitor. For each of the plurality of pixels, the row driver adjusts capacitance of the first floating diffusion node by using the capacitor control transistor for each of a plurality of preset operation modes during a readout period of the first photodiode.
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公开(公告)号：US11348376B2
公开(公告)日：2022-05-31
申请号：US16985888
申请日：2020-08-05
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Dongjin Park , Changeun Kang , Moonkyu Song , Seongwook Song
Abstract: A display device is provided. The display device includes a display panel including a pixels; a fingerprint recognition sensor including an image sensor disposed under a first surface of the display panel; and a processor to control the display panel and the fingerprint recognition sensor. A portion of display pixels are configured to emit light in a fingerprint recognition mode. The image sensor includes pixels, at least a portion of the pixels are phase detection pixels. The image sensor generates a fingerprint image signal and a fingerprint phase signal based on reflected light received while the portion of display pixels emit light. The main processor is further configured to perform an anti-spoofing operation or a fingerprint authentication operation based on the fingerprint image signal and the fingerprint phase signal.
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公开(公告)号：US11665444B2
公开(公告)日：2023-05-30
申请号：US17561050
申请日：2021-12-23
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kyungmin Kim , Changeun Kang , Hoyong Na , Jihun Shin , Youngtae Jang , Youngkyun Jeong
Abstract: An image sensor includes a pixel array, in which a plurality of pixels are arranged, and a row driver for controlling the plurality of pixels. Each of the plurality of pixels includes a first photodiode, a second photodiode having a larger light-receiving area than the first photodiode, a first floating diffusion node in which charges generated by the first photodiode are stored, a first capacitor connected to the first floating diffusion node, and a capacitor control transistor having one end connected in series to the first capacitor. For each of the plurality of pixels, the row driver adjusts capacitance of the first floating diffusion node by using the capacitor control transistor for each of a plurality of preset operation modes during a readout period of the first photodiode.
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5.发明授权公开(公告)号：US11610424B2
公开(公告)日：2023-03-21
申请号：US16796456
申请日：2020-02-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Jongboo Kim , Changeun Kang , Seoungjae Yoo , Yuncheol Han
Abstract: Systems and methods are described for registering a fingerprint based on optical fingerprint recognition. A fingerprint recognition window is displayed and a fingerprint frequency of a user fingerprint is analyzed based on reflected light received through the fingerprint recognition window using a fingerprint recognition sensor driven by a pixel binning scheme based on a first binning size. The first binning size may be evaluated based on the fingerprint frequency. If the first binning size is not appropriate for registering the user fingerprint, a second binning size is selected. Fingerprint information of the user fingerprint may be obtained again based on using the fingerprint recognition sensor driven by a pixel binning scheme based on the second binning size.
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