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公开(公告)号：US11627264B2
公开(公告)日：2023-04-11
申请号：US16670238
申请日：2019-10-31
发明人： Shinya Igarashi , Noriyuki Shikina
摘要： A photoelectric conversion device includes a pixel unit having pixels arranged to form rows and columns, each including a transfer transistor that transfers charge in a photoelectric converter to an output unit, and a pixel control unit that controls the pixels. The pixel control unit is configured to supply a control signal in accordance with an exposure period individually defined for pixel blocks of the pixel unit to pixels of each pixel block and read out, from each pixel, a first signal obtained when the photoelectric converter is in a reset state and a second signal based on charge accumulated in the photoelectric converter during the exposure period. A period excluding both the exposure period and a readout period of the second signal corresponds to a reset period of the photoelectric converter. The transfer transistor is off in a readout period of the first and second signals.
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公开(公告)号：US12075541B2
公开(公告)日：2024-08-27
申请号：US17876723
申请日：2022-07-29
IPC分类号： G09G3/3233 , F21S43/145 , H05B45/60
CPC分类号： H05B45/60 , F21S43/145 , G09G3/3233 , G09G2300/0814 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/08 , G09G2320/0233 , G09G2320/0242 , G09G2330/10
摘要： A light emitting device includes pixel circuits arranged to form rows and columns and each including a light emitting element, signal lines each extending in a column direction and configured to supply a pixel signal to the pixel circuits, row selection lines each extending in a row direction and configured to supply a row selection signal to the pixel circuits, and column selection lines each extending in the column direction and configured to supply a column selection signal to the pixel circuits. At least one of the pixel circuits includes a light emission control circuit configured to allow the light emitting element of a pixel circuit indicated by the row selection signal and the column selection signal to emit light in a brightness according to the pixel signal that is being supplied to the pixel circuit.
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公开(公告)号：US11984071B2
公开(公告)日：2024-05-14
申请号：US17828158
申请日：2022-05-31
发明人： Kohei Murayama , Shinya Igarashi
IPC分类号： G09G3/3225 , H04N23/63
CPC分类号： G09G3/3225 , H04N23/63 , G09G2320/041 , G09G2320/0673
摘要： A light emitting apparatus includes a light emitting element, a temperature measurement device, a driving control unit, a calculation unit configured to calculate a correction value of a driving control parameter based on a measured temperature; and a change unit configured to change a coefficient of a function based on the measured temperature. The calculation unit calculates the correction value with respect to the measured temperature based on a function obtained by expressing a first function, which expresses a relationship between the measured temperature and the correction value, by a combined function of a plurality of third functions each generated by changing a coefficient of a second function, and the change unit changes, based on the measured temperature, the coefficient of the second function to generate the plurality of third functions.
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公开(公告)号：US20230122042A1
公开(公告)日：2023-04-20
申请号：US18047191
申请日：2022-10-17
发明人： Shinya Igarashi , Taichi Kasugai
摘要： A device includes a pixel unit, a selection unit, and a first generation unit. The pixel unit has a plurality of pixels arranged in a plurality of rows. Each pixel includes a quenching circuit configured to receive a signal for determining start and end of an exposure period and a photodiode coupled to the quenching circuit. The selection unit is configured to simultaneously receive a plurality of clock signals of different periods and select a clock signal to be outputted from the plurality of clock signals. The first generation unit is configured to generate the signal by using the outputted clock.
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公开(公告)号：US20230043411A1
公开(公告)日：2023-02-09
申请号：US17876723
申请日：2022-07-29
IPC分类号： H05B45/60 , F21V3/00 , F21S43/145 , H04N5/225 , G09G3/3233
摘要： A light emitting device includes pixel circuits arranged to form rows and columns and each including a light emitting element, signal lines each extending in a column direction and configured to supply a pixel signal to the pixel circuits, row selection lines each extending in a row direction and configured to supply a row selection signal to the pixel circuits, and column selection lines each extending in the column direction and configured to supply a column selection signal to the pixel circuits. At least one of the pixel circuits includes a light emission control circuit configured to allow the light emitting element of a pixel circuit indicated by the row selection signal and the column selection signal to emit light in a brightness according to the pixel signal that is being supplied to the pixel circuit.
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6.发明申请公开(公告)号：US20210044766A1
公开(公告)日：2021-02-11
申请号：US16944222
申请日：2020-07-31
发明人： Noriyuki Shikina , Shinya Igarashi
IPC分类号： H04N5/353 , H04N5/369 , H04N5/3745 , G06T7/55
摘要： Provided is a photoelectric conversion device including: a plurality of pixel circuits each including a photoelectric conversion unit configured to generate charges by photoelectric conversion and a transistor configured to transfer the charges from the photoelectric conversion unit; and a plurality of exposure control circuits each including a capacitor configured to hold a signal corresponding to an exposure period in the photoelectric conversion unit and a comparator circuit configured to compare a potential of a first terminal of two terminals of the capacitor with a threshold potential. Each of the plurality of exposure control circuits controls an exposure period of the photoelectric conversion unit by outputting a signal based on a comparison result caused by the comparator circuit to a control terminal of the transistor and driving the transistor.
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7.发明授权公开(公告)号：US11758296B2
公开(公告)日：2023-09-12
申请号：US16944222
申请日：2020-07-31
发明人： Noriyuki Shikina , Shinya Igarashi
IPC分类号： H04N25/50 , G06T7/55 , H04N25/79 , H04N25/771 , H04N25/778 , H04N25/57 , H04N25/53 , H04N25/77 , H04N25/59 , H04N25/78 , H04N25/40 , H04N25/533
CPC分类号： H04N25/50 , G06T7/55 , H04N25/40 , H04N25/53 , H04N25/57 , H04N25/59 , H04N25/77 , H04N25/771 , H04N25/778 , H04N25/78 , H04N25/79 , G06T2207/30248 , H04N25/533
摘要： Provided is a photoelectric conversion device including: a plurality of pixel circuits each including a photoelectric conversion unit configured to generate charges by photoelectric conversion and a transistor configured to transfer the charges from the photoelectric conversion unit; and a plurality of exposure control circuits each including a capacitor configured to hold a signal corresponding to an exposure period in the photoelectric conversion unit and a comparator circuit configured to compare a potential of a first terminal of two terminals of the capacitor with a threshold potential. Each of the plurality of exposure control circuits controls an exposure period of the photoelectric conversion unit by outputting a signal based on a comparison result caused by the comparator circuit to a control terminal of the transistor and driving the transistor.
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公开(公告)号：US20230047907A1
公开(公告)日：2023-02-16
申请号：US17881719
申请日：2022-08-05
发明人： Daichi Seto , Shinya Igarashi , Tetsuro Yamamoto
IPC分类号： H01L27/32
摘要： A light emitting device has a structure in which a first substrate and a second substrate are stacked. The device includes a plurality of light emitting elements, and a driving circuit configured to drive the plurality of light emitting elements. Part of the driving circuit is arranged in the first substrate, and another part of the driving circuit is arranged in the second substrate.
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公开(公告)号：US10771775B2
公开(公告)日：2020-09-08
申请号：US15717794
申请日：2017-09-27
摘要： An imaging device comprising a plurality of pixels and a processing unit. The plurality of pixels includes (i) a light-receiving pixel arranged to receive incident light and output a light signal based on the incident light, and (ii) a reference pixel arranged to output a pixel signal for configuring a failure detection signal. The processing unit is arranged to determine whether or not the failure detection signal is correct based on abnormality information indicating the abnormality of the reference pixel.
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公开(公告)号：US20200154067A1
公开(公告)日：2020-05-14
申请号：US16670238
申请日：2019-10-31
发明人： Shinya Igarashi , Noriyuki Shikina
摘要： A photoelectric conversion device includes a pixel unit having pixels arranged to form rows and columns, each including a transfer transistor that transfers charge in a photoelectric converter to an output unit, and a pixel control unit that controls the pixels. The pixel control unit is configured to supply a control signal in accordance with an exposure period individually defined for pixel blocks of the pixel unit to pixels of each pixel block and read out, from each pixel, a first signal obtained when the photoelectric converter is in a reset state and a second signal based on charge accumulated in the photoelectric converter during the exposure period. A period excluding both the exposure period and a readout period of the second signal corresponds to a reset period of the photoelectric converter. The transfer transistor is off in a readout period of the first and second signals.
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