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公开(公告)号：US20180020171A1
公开(公告)日：2018-01-18
申请号：US15719456
申请日：2017-09-28
Inventor： YASUO MIYAKE , MASASHI MURAKAMI , TOKUHIKO TAMAKI , YOSHIAKI SATOU
IPC: H04N5/353 , H01L27/146 , H04N5/355 , H04N5/378 , H04N5/369
CPC classification number: H04N5/353 , H01L27/14609 , H01L27/14612 , H01L27/14636 , H01L27/14643 , H01L27/14669 , H04N5/3532 , H04N5/35554 , H04N5/3698 , H04N5/378 , Y02E10/549
Abstract: An imaging device includes: unit pixel cells each including first and second electrodes, a photoelectric conversion layer therebetween, a charge accumulation region, and a signal detection circuit; and a voltage supply circuit, the voltage supply circuit supplying a first voltage to the second electrode in an exposure period. The start and end of the exposure period is common to the unit pixel cells. The photoelectric conversion layer has a photocurrent characteristic including first to third voltage ranges. In the third voltage range between the first and second voltage ranges, an absolute value of a rate of change of a current density relative to a bias voltage is less than in the first and second voltage ranges. The voltage supply circuit supplies a second voltage to the second electrode in a non-exposure period such that the bias voltage applied to the photoelectric conversion layer falls within the third voltage range.
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公开(公告)号：US20170214872A1
公开(公告)日：2017-07-27
申请号：US15407084
申请日：2017-01-16
Inventor： MASAAKI YANAGIDA , MASASHI MURAKAMI , SANSHIRO SHISHIDO
CPC classification number: H04N5/363 , H01L27/307 , H04N5/378
Abstract: An imaging device includes: pixel cells arranged in a matrix having rows and columns and including first and second pixel cells in one of the columns, each pixel cell comprising a photoelectric converter and a signal detection circuit detecting an electrical signal in the photoelectric converter and outputting an output signal; first and second output signal lines through which the output signals are output from each of the first and second pixel cells, respectively; and first and second feedback circuits that form, for each of the first and second pixel cells, first and second feedback paths negatively feeding back the electrical signals, respectively. The first and second pixel cells are arranged every n rows in the one of the columns where that n is an integer equal to or greater than two, the rows respectively having the first pixel cells being different from those respectively having the second pixel cells.
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公开(公告)号：US20170163917A1
公开(公告)日：2017-06-08
申请号：US15351075
申请日：2016-11-14
Inventor： TAKAYOSHI YAMADA , MASASHI MURAKAMI , KAZUKO NISHIMURA , HIDENARI KANEHARA , YASUO MIYAKE
IPC: H04N5/355 , H01L27/146 , H04N5/357
CPC classification number: H04N5/35563 , H01L27/14603 , H04N5/23245 , H04N5/357 , H04N5/3696 , H04N5/3698
Abstract: An imaging device according to the present disclosure includes: a counter electrode; a first pixel electrode facing the counter electrode; a second pixel electrode facing the counter electrode; a third pixel electrode facing the counter electrode; a photoelectric conversion layer sandwiched between the first pixel electrode, the second pixel electrode, and the third pixel electrode, and the counter electrode; a first signal detection circuit electrically connected to the first pixel electrode; a second signal detection circuit electrically connected to the second pixel electrode; a first switching element connected between the third pixel electrode and the first signal detection circuit; and a second switching element connected between the third pixel electrode and the second signal detection circuit.
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公开(公告)号：US20160360131A1
公开(公告)日：2016-12-08
申请号：US15164910
申请日：2016-05-26
Inventor： NAOKI SHIMASAKI , MASASHI MURAKAMI
IPC: H04N5/363 , H04N5/3745 , H04N5/378
CPC classification number: H04N5/363 , H04N5/37455 , H04N5/37457 , H04N5/378
Abstract: An imaging device includes: a photoelectric converter generating a signal; a signal detection circuit detecting the signal and including a first transistor having a first control terminal connected to the photoelectric converter, a first input terminal, and a first output terminal, a second transistor having a second control terminal connected to the photoelectric converter, a second input terminal, and a second output terminal, a third transistor having a third control terminal, a third input terminal, and a third output terminal, one of the third input and output terminal connected to one of the second input and output terminal; an output signal line connected to one of the first input and output terminal, and to the other of the third input and output terminal; and a voltage supply circuit connected to the third control terminal, selectively supplying a first voltage or a second voltage to the third control terminal.
Abstract translation: 一种成像装置，包括：产生信号的光电转换器; 检测信号的信号检测电路，包括具有连接到光电转换器的第一控制端的第一晶体管，第一输入端和第一输出端，具有连接到光电转换器的第二控制端的第二晶体管， 输入端子和第二输出端子，具有第三控制端子，第三输入端子和第三输出端子的第三晶体管，所述第三输入和输出端子中的一个连接到所述第二输入和输出端子之一; 连接到第一输入和输出端子之一的输出信号线，以及连接到第三输入和输出端子中的另一个的输出信号线; 以及与第三控制端子连接的电压供给电路，向第三控制端子选择性地供给第一电压或第二电压。
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公开(公告)号：US20200304735A1
公开(公告)日：2020-09-24
申请号：US16815257
申请日：2020-03-11
Inventor： YUTAKA ABE , KAZUKO NISHIMURA , MASASHI MURAKAMI
Abstract: An imaging device includes a photoelectric converter that converts light into signal charge, a charge accumulation region that accumulates the signal charge, a first transistor having a gate connected to the charge accumulation region, and a common gate amplifier circuit that amplifies an output of the first transistor to output to the charge accumulation region. The common gate amplifier circuit includes a second transistor. One of a source and a drain of the second transistor is connected to one of a source and a drain of the first transistor, and the other of the source and the drain of the second transistor is connected to the charge accumulation region.
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Patent Agency Ranking
公开(公告)号：US20190306442A1
公开(公告)日：2019-10-03
申请号：US16352367
申请日：2019-03-13
Inventor： MASASHI MURAKAMI , KAZUKO NISHIMURA , YASUO MIYAKE , YASUNORI INOUE
IPC: H04N5/355
Abstract: An imaging device including: a photoelectric converter including first and second electrodes and a conversion layer therebetween; a voltage supplier; an outputter outputting a signal indicating the potential of the second electrode; and a detector detecting the signal level, in which the change rate of the conversion efficiency of the photoelectric converter with respect to a bias voltage, applied between the electrodes, when the bias voltage is in a first range is greater than when the bias voltage is in a second range greater than the first range, and the voltage supplier, when the detected level is less than a first threshold, causes the potential difference between the electrodes to become a first difference, and, when the detected level is greater than or equal to a second threshold greater than or equal to the first threshold, causes the potential difference to become a second difference greater than the first difference.
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公开(公告)号：US20190238768A1
公开(公告)日：2019-08-01
申请号：US16255679
申请日：2019-01-23
Inventor： TAKAYOSHI YAMADA , YASUO MIYAKE , MASASHI MURAKAMI
IPC: H04N5/363 , H01L27/146 , H04N5/351 , H04N5/378
CPC classification number: H04N5/363 , H01L27/14612 , H04N5/351 , H04N5/378
Abstract: An imaging device according to the present disclosure includes a photoelectric converter that converts light into an electric charge; a transfer transistor; a charge accumulation node coupled to the photoelectric converter via the transfer transistor; a first signal detection transistor having a gate coupled to the charge accumulation node; a first reset transistor one of a source and a drain of which is coupled to the charge accumulation node; and a second reset transistor one of a source and a drain of which is coupled to the photoelectric converter, wherein one of a source and a drain of the first signal detection transistor is coupled to the other of the source and the drain of the first reset transistor and the other of the source and drain of the second reset transistor.
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公开(公告)号：US20180315786A1
公开(公告)日：2018-11-01
申请号：US15961964
申请日：2018-04-25
Inventor： JUNJI HIRASE , MASASHI MURAKAMI
IPC: H01L27/146 , H04N5/369 , G02B7/04
Abstract: An imaging device includes: a pixel including a photoelectric converter including a pixel electrode, a counter electrode, and a photoelectric conversion fila converting light into a charge, an amplification transistor a first gate of which is connected to the pixel electrode, a reset transistor one of second source and drain of which is connected to the pixel electrode, and a feedback transistor one of third source and drain of which is connected to the other of the second source and drain; and a first voltage supply circuit supplying a first voltage to the counter electrode. The reset transistor has such a characteristic that when a voltage equal to or higher than a clipping voltage is supplied between the second gate and the one of the second source and drain, the reset transistor is turned off. The clipping voltage is lower than the first voltage.
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公开(公告)号：US20180249102A1
公开(公告)日：2018-08-30
申请号：US15964108
申请日：2018-04-27
Inventor： YASUO MIYAKE , MASASHI MURAKAMI , TOKUHIKO TAMAKI , YOSHIAKI SATOU
IPC: H04N5/353 , H01L27/146 , H04N5/355 , H04N5/378 , H04N5/369
CPC classification number: H04N5/353 , H01L27/14609 , H01L27/14612 , H01L27/14636 , H01L27/14643 , H01L27/14669 , H04N5/3532 , H04N5/35554 , H04N5/3698 , H04N5/378
Abstract: A method for driving an imaging device which includes unit pixel cells each including a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and second electrode, the photoelectric conversion layer having a photocurrent characteristic including a first voltage range, a second voltage range, and a third voltage range where an absolute value of a rate of change of the current density relative to the bias voltage is less than in the first voltage range and the second voltage range, the method including supplying a first voltage to the second electrode in a first period, and supplying a second voltage different from the first voltage to the second electrode in a second period different from the first period such that the bias voltage applied to the photoelectric conversion layer falls within the third voltage range.
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公开(公告)号：US20160006966A1
公开(公告)日：2016-01-07
申请号：US14741452
申请日：2015-06-17
Inventor： MASASHI MURAKAMI , KAZUKO NISHIMURA , YUTAKA ABE
IPC: H04N5/378 , H04N5/363 , H04N5/3745
CPC classification number: H04N5/378 , H04N5/3575 , H04N5/3745
Abstract: An imaging device comprising: a pixel array that includes pixels arranged in rows and columns, each of the pixels outputting a pixel signal; vertical signal lines each of which is provided for each of the columns; a reference-signal generator that generates a reset signal corresponding to a reset voltage of the pixels; a signal processor that outputs a differential signal corresponding to a difference between the pixel signal and the reset signal; a first switch that is connected between one of the vertical signal lines and the signal processor, the first switch switching between input and interruption of the pixel signal from each of the pixels to the signal processor; and a second switch that is connected between the reference-signal generator and the signal processor, the second switch switching between input and interruption of the reset signal from the reference-signal generator to the signal processor.
Abstract translation: 一种成像装置，包括：像素阵列，包括以行和列排列的像素，每个像素输出像素信号; 垂直信号线各自为每列提供; 参考信号发生器，其生成与像素的复位电压对应的复位信号; 输出对应于像素信号和复位信号之间的差的差分信号的信号处理器; 连接在垂直信号线之一和信号处理器之间的第一开关，第一开关在从像素到信号处理器的像素信号的输入和中断之间切换; 以及连接在参考信号发生器和信号处理器之间的第二开关，第二开关在从参考信号发生器到信号处理器的复位信号的输入和中断之间切换。
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