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    HYBRID IMAGE PIXELS FOR PHASE DETECTION AUTO FOCUS
    11.
    发明公开
    HYBRID IMAGE PIXELS FOR PHASE DETECTION AUTO FOCUS 审中-公开

    公开(公告)号：US20230395626A1

    公开(公告)日：2023-12-07

    申请号：US17832335

    申请日：2022-06-03

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Xiaodong Yang ,  Guansong Liu ,  Wei Deng ,  Chin Poh Pang ,  Da Meng ,  Hongjun Li

    IPC: H01L27/146 ,  H04N5/232 ,  H04N5/369

    CPC classification number: H01L27/14627 ,  H01L27/14645 ,  H04N5/232122 ,  H04N5/36961

    Abstract: Image sensors for Phase-Detection Auto Focus (PDAF) are provided. An image sensor includes a pixel including a plurality of photodiodes disposed in a semiconductor material according to an arrangement. The arrangement defines a first image subpixel comprising a plurality of first photodiodes, a second image subpixel comprising a plurality of second photodiodes, and a third image subpixel including a plurality of third photodiodes, and a phase detection subpixel comprising a first photodiode, a second photodiode, or a third photodiodes. The pixel can include a plurality of first micro-lenses disposed individually overlying at least a subset of the plurality of photodiodes of the first, second and third image subpixels. The pixel can also include a second micro-lens disposed overlying the phase detection subpixel, a first micro-lens of the first micro-lenses having a first radius less than a second radius of the second micro-lens.

    Flexible exposure control for image sensors with phase detection auto focus pixels
    12.
    发明授权
    Flexible exposure control for image sensors with phase detection auto focus pixels 有权

    公开(公告)号：US11356626B2

    公开(公告)日：2022-06-07

    申请号：US16855850

    申请日：2020-04-22

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Rui Wang ,  Eiichi Funatsu ,  Woon Il Choi ,  Keiji Mabuchi ,  Chin Poh Pang ,  Qingfei Chen ,  Da Meng ,  Vivian Wang

    IPC: H04N5/369 ,  H01L27/146 ,  H04N5/355 ,  H04N5/378

    Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.

    IMAGE SENSOR WITH ANALOG BINNED READOUT OF IMAGE SENSING PHOTODIODES WITH PHASE DETECTION PHOTODIODES
    13.
    发明申请
    IMAGE SENSOR WITH ANALOG BINNED READOUT OF IMAGE SENSING PHOTODIODES WITH PHASE DETECTION PHOTODIODES 有权

    公开(公告)号：US20210337147A1

    公开(公告)日：2021-10-28

    申请号：US16855854

    申请日：2020-04-22

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Qingfei Chen ,  Chin Poh Pang ,  Qingwei Shan

    IPC: H04N5/378 ,  H04N5/3745 ,  H01L27/146

    Abstract: An imaging device includes a first pixel circuit having a first plurality of photodiodes that includes a phase detection autofocus photodiode with image sensing photodiodes. A first buffer transistor having a first threshold voltage is coupled to the first plurality of photodiodes to generate a first output signal. A second pixel circuit is included having a second plurality of photodiodes that are all image sensing photodiodes. A second buffer transistor having a second threshold voltage is coupled to the second plurality of photodiodes to generate a second output signal. The first threshold voltage is less than the second threshold voltage. A driver is coupled to receive a combination of the first and second output signals to generate a total output signal. An influence of the first output signal dominates the second output signal in the total output signal because the first threshold voltage is less than the second threshold voltage.

    FLEXIBLE EXPOSURE CONTROL FOR IMAGE SENSORS WITH PHASE DETECTION AUTO FOCUS PIXELS
    14.
    发明申请
    FLEXIBLE EXPOSURE CONTROL FOR IMAGE SENSORS WITH PHASE DETECTION AUTO FOCUS PIXELS 有权

    公开(公告)号：US20210337144A1

    公开(公告)日：2021-10-28

    申请号：US16855850

    申请日：2020-04-22

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Rui Wang ,  Eiichi Funatsu ,  Woon Il Choi ,  Keiji Mabuchi ,  Chin Poh Pang ,  Qingfei Chen ,  Da Meng ,  Vivian Wang

    IPC: H04N5/369 ,  H01L27/146 ,  H04N5/355 ,  H04N5/378

    Abstract: An imaging device includes a photodiode array. The photodiodes include a first set of photodiodes configured as image sensing photodiodes and a second set of photodiodes configured as phase detection auto focus (PDAF) photodiodes. The PDAF photodiodes are arranged in at least pairs in neighboring columns and are interspersed among the image sensing photodiodes. Transfer transistors are coupled to corresponding photodiodes. The transfer transistors coupled to the image sensing photodiodes included in an active row of are controlled in response to a first transfer control signal or a second transfer control signal that control all of the image sensing photodiodes of the active row. A transfer transistor is coupled to one of a pair of the PDAF photodiodes of the active row. The first transfer transistor is controlled in response to a first PDAF control signal that is independent of the first or second transfer control signals.

    RGBC color filter array patterns to minimize color aliasing
    16.
    发明授权
    RGBC color filter array patterns to minimize color aliasing 有权
    RGBC彩色滤镜阵列图案，以最大限度地减少色彩混叠

    公开(公告)号：US09521381B2

    公开(公告)日：2016-12-13

    申请号：US15098151

    申请日：2016-04-13

    Applicant: OMNIVISION TECHNOLOGIES, INC.

    Inventor： Raymond Wu ,  Jizhang Shan ,  Chin Poh Pang

    IPC: H04N3/14 ,  H04N9/04 ,  H04N5/369 ,  G06T3/40 ,  H04N5/378

    CPC classification number: H04N9/045 ,  G06T3/4015 ,  H04N5/3696 ,  H04N5/378 ,  H04N2209/047

    Abstract: Implementations of a color filter array comprising a plurality of tiled minimal repeating units. Each minimal repeating unit includes at least a first set of filters comprising three or more color filters, the first set including at least one color filter with a first spectral photoresponse, at least one color filter with a second spectral photoresponse, and at least one color filter with a third spectral photoresponse; and a second set of filters comprising one or more broadband filters positioned among the color filters of the first set, wherein each of the one or more broadband filters has a fourth spectral photoresponse with a broader spectrum than any of the first, second, and third spectral photoresponses, and wherein the individual filters of the second set have a smaller area than any of the individual filters in the first set. Other implementations are disclosed and claimed.

    Abstract translation: 包括多个平铺的最小重复单元的滤色器阵列的实现。 每个最小重复单元至少包括包含三个或更多个滤色器的第一组滤光器，第一组包括具有第一光谱光响应的至少一个滤色器，至少一个具有第二光谱光响应的滤色器，以及至少一种颜色 滤光片与第三光谱光响应; 以及第二组滤波器，包括位于所述第一组滤色器之间的一个或多个宽带滤光器，其中所述一个或多个宽带滤光器中的每一个具有比所述第一，第二和第三滤色器中的任一个宽的光谱的第四光谱光响应 光谱光响应，并且其中第二组的各个滤波器具有比第一组中的任何一个滤波器小的面积。 公开并要求保护其他实施方式。

    Image sensor with shared microlens and polarization pixel
    17.
    发明授权
    Image sensor with shared microlens and polarization pixel 有权

    公开(公告)号：US11367744B2

    公开(公告)日：2022-06-21

    申请号：US16704877

    申请日：2019-12-05

    Applicant: OmniVision Technologies, Inc.

    Inventor： Chin Poh Pang ,  Boyang Zhang ,  Guansong Liu ,  Peng Lin

    IPC: H01L27/146 ,  H04N5/369 ,  H04N5/378

    Abstract: An image sensor pixel comprises a subpixel and a polarization pixel. The subpixel includes a group of photodiodes disposed in semiconductor material, a shared microlens optically aligned over the group of photodiodes, and a subpixel color filter disposed between the group of photodiodes and the shared microlens. The polarization pixel includes a first photodiode disposed in the semiconductor material, an unshared microlens optically aligned over the first photodiode, and a polarization filter disposed between the first photodiode and the unshared microlens. The shared microlens has a first lateral area. The unshared microlens has a second lateral area less than the first lateral area of the shared microlens.

    Image sensor with shared microlens between multiple subpixels
    18.
    发明授权
    Image sensor with shared microlens between multiple subpixels 有权

    公开(公告)号：US11367743B2

    公开(公告)日：2022-06-21

    申请号：US16666129

    申请日：2019-10-28

    Applicant: OmniVision Technologies, Inc.

    Inventor： Xiaodong Yang ,  Guansong Liu ,  Peng Lin ,  Chin Poh Pang ,  Da Meng

    IPC: H01L27/146 ,  H04N5/232 ,  H04N9/04

    Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.

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