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    Organic image sensors without color filters
    1.
    发明授权
    Organic image sensors without color filters 有权

    公开(公告)号：US11785789B2

    公开(公告)日：2023-10-10

    申请号：US17392996

    申请日：2021-08-03

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gae Hwang Lee ,  Kwang Hee Lee ,  Sung Young Yun ,  Dong-Seok Leem ,  Yong Wan Jin

    IPC: H01L27/30 ,  H10K39/32 ,  H10K19/20 ,  H10K19/00

    CPC classification number: H10K39/32 ,  H10K19/20 ,  H10K19/201

    Abstract: An organic image sensor may be configured to obtain a color signal associated with a particular wavelength spectrum of light absorbed by the organic image sensor may omit a color filter. The organic image sensor may include an organic photoelectric conversion layer including a first material and a second material. The first material may absorb a first wavelength spectrum of light, and the second material may absorb a second wavelength spectrum of light. The organic photoelectric conversion layer may include stacked upper and lower layers, and the respective material compositions of the lower and upper layers may be first and second mixtures of the first and second materials. A ratio of the first material to the second material in the first mixture may be greater than 1/1, and a ratio of the first material to the second material in the second mixture may be less than 1/1.

    Fingerprint sensors and fingerprint sensor arrays and devices
    8.
    发明授权
    Fingerprint sensors and fingerprint sensor arrays and devices 有权

    公开(公告)号：US11151349B2

    公开(公告)日：2021-10-19

    申请号：US16729993

    申请日：2019-12-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Gae Hwang Lee ,  Kyung Bae Park ,  Sung Jun Park ,  Sung Young Yun ,  Yong Wan Jin ,  Chul Joon Heo

    IPC: G06K9/00 ,  H01L51/52

    Abstract: A fingerprint sensor may include first and second electrodes, a light absorption layer isolated from direct contact with the first and second electrodes, and an insulation layer between the first electrode and the light absorption layer and further between the second electrode and the light absorption layer. A reflective layer may be between the light absorption layer and the first electrode. The insulation layer may include a first insulation layer between the first electrode and the light absorption layer, and a second insulation layer between the second electrode and the light absorption layer. A fingerprint sensor array including a plurality of fingerprint sensors may at least partially expose a plurality of sub-pixels of a display panel on which the fingerprint sensor array is located.

    Photoelectric devices and image sensors and electronic devices
    10.
    发明授权
    Photoelectric devices and image sensors and electronic devices 有权

    公开(公告)号：US10998514B2

    公开(公告)日：2021-05-04

    申请号：US16178691

    申请日：2018-11-02

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyung Bae Park ,  Takkyun Ro ,  Kiyohiko Tsutsumi ,  Chul Joon Heo ,  Yong Wan Jin

    IPC: H01L27/146 ,  H01L51/00 ,  H01L51/42 ,  H01L27/30 ,  H01L51/44

    Abstract: A photoelectric device includes a first photoelectric conversion layer including a heterojunction that includes a first p-type semiconductor and a first n-type semiconductor, a second photoelectric conversion layer on the first photoelectric conversion layer and including a heterojunction that includes a second p-type semiconductor and a second n-type semiconductor. A peak absorption wavelength (λmax1) of the first photoelectric conversion layer and a peak absorption wavelength (λmax2) of the second photoelectric conversion layer are included in a common wavelength spectrum of light that is one wavelength spectrum of light of a red wavelength spectrum of light, a green wavelength spectrum of light, a blue wavelength spectrum of light, a near infrared wavelength spectrum of light, or an ultraviolet wavelength spectrum of light, and a light-absorption full width at half maximum (FWHM) of the second photoelectric conversion layer is narrower than an FWHM of the first photoelectric conversion layer.

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