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    Active pixel sensor and flat panel detector
    1.
    发明授权
    Active pixel sensor and flat panel detector 有权

    公开(公告)号：US11933924B2

    公开(公告)日：2024-03-19

    申请号：US17488259

    申请日：2021-09-28

    Applicant: BOE TECHNOLOGY GROUP CO., LTD.

    Inventor： Jiangbo Chen ,  Fanli Meng ,  Zeyuan Li ,  Yao Lu ,  Tuo Sun ,  Yanzhao Li ,  Ding Ding

    IPC: G01T1/20 ,  H01L27/146 ,  H04N5/32 ,  H04N25/75

    CPC classification number: G01T1/20184 ,  H01L27/14676 ,  H04N5/32 ,  H04N25/75

    Abstract: The present disclosure provides an active pixel sensor and a flat panel detector. The active pixel sensor includes: a light sensing device configured to convert light sensed by the light sensing device into charges and supply the charges to a floating diffusion node; an amplification sub-circuit configured to amplify a signal according to a potential at the floating diffusion node and output the amplified signal through the output terminal; an adjustment sub-circuit configured to adjust, in response to a first control signal, a conversion gain from an amount of the light sensed by the light sensing device to the potential at the floating diffusion node; and a read sub-circuit configured to transmit a voltage of the input terminal of the read sub-circuit to the output terminal of the read sub-circuit according to a scan signal provided by the scan line.

    Flat panel detector and medical image detection device
    2.
    发明授权
    Flat panel detector and medical image detection device 有权

    公开(公告)号：US11594653B2

    公开(公告)日：2023-02-28

    申请号：US17356194

    申请日：2021-06-23

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Fanli Meng ,  Jiangbo Chen ,  Zeyuan Li ,  Yao Lu ,  Ning Dang

    IPC: H01L31/08 ,  A61B6/00 ,  H01L31/0224

    Abstract: The present disclosure provides a flat panel detector and a medical image detection device. The flat panel detector includes a base substrate, wherein the base substrate is divided into a plurality of detection units, each detection unit includes a first absorbing layer and a second absorbing layer, both of which are arranged on the base substrate in a laminating manner, the second absorbing layer is located on one side, away from the base substrate, of the first absorbing layer, and an energy level of rays absorbed by the second absorbing layer is smaller than that of rays absorbed by the first absorbing layer; a voltage supply electrode structure; and an output circuit, electrically connected to the voltage supply electrode structure and configured to output a first detection signal of the first absorbing layer and a second detection signal of the second absorbing layer.

    Detection substrate and ray detector
    3.
    发明授权
    Detection substrate and ray detector 有权

    公开(公告)号：US11948948B2

    公开(公告)日：2024-04-02

    申请号：US17406951

    申请日：2021-08-19

    Applicant: BOE Technology Group Co., Ltd.

    Inventor： Jiangbo Chen ,  Fanli Meng ,  Zeyuan Li ,  Yao Lu ,  Liye Duan ,  Yanzhao Li

    IPC: H01L27/146

    CPC classification number: H01L27/14603 ,  H01L27/14614 ,  H01L27/14623 ,  H01L27/14659 ,  H01L27/14663

    Abstract: A detection substrate and a ray detector are disclosed. The detection substrate includes a base substrate; a plurality of detection pixel circuits, located on the base substrate; a first passivation layer, located on the side, facing away from the base substrate, of the detection pixel circuits; a planarization layer, located on the side, facing away from the base substrate, of the first passivation layer, where the surface of the side, facing away from the first passivation layer, of the planarization layer is a plane; and a plurality of photosensitive devices; where the photosensitive devices are electrically connected to the detection pixel circuits in a one-to-one correspondence through vias penetrating through the first passivation layer and the planarization layer, and each photosensitive device includes a first portion and a second portion.

    Acoustic wave transducer and driving method thereof
    4.
    发明授权
    Acoustic wave transducer and driving method thereof 有权

    公开(公告)号：US11904360B2

    公开(公告)日：2024-02-20

    申请号：US17266445

    申请日：2020-05-21

    Applicant: Beijing BOE Technology Development Co., Ltd. ,  BOE Technology Group Co., Ltd.

    Inventor： Liye Duan ,  Mengjun Hou ,  Yao Lu ,  Zongmin Liu

    IPC: B06B1/06 ,  B06B3/04 ,  H10N30/87 ,  H10N30/00

    CPC classification number: B06B1/0607 ,  B06B3/04 ,  H10N30/1051 ,  H10N30/875

    Abstract: The present disclosure provides an acoustic wave transducer and a driving method thereof. The acoustic wave transducer includes cell groups, at least part of which each include acoustic wave transducer cells configured to perform a same operation, each acoustic wave transducer cell being configured to perform at least one of: converting an acoustic wave signal into an electrical signal and converting an electrical signal into an acoustic wave signal; and array element signal terminals, each of which is coupled to at least two adjacent cell groups, and is coupled to different cell groups through different switch devices, each switch device being configured to control connection and disconnection between the array element signal terminal and the cell group coupled to the switch device, and the cell groups coupled to an array element signal terminal and the cell groups coupled to an adjacent array element signal terminal are partly the same.

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