-
公开(公告)号:US11637147B2
公开(公告)日:2023-04-25
申请号:US17394091
申请日:2021-08-04
Inventor: Shunsuke Isono , Hidenari Kanehara , Sanshiro Shishido , Takeyoshi Tokuhara
IPC: H01L27/30 , H04N5/374 , H04N5/376 , H01L27/146
Abstract: An imaging device including: a semiconductor substrate including a pixel region and a peripheral region; an insulating layer that covers the pixel and peripheral regions; first electrodes located on the insulating layer above the pixel region; a photoelectric conversion layer that covers the first electrodes; a second electrode that covers the photoelectric conversion layer; detection circuitry configured to be electrically connected to the first electrodes; peripheral circuitry configured to be electrically connected to the detection circuitry, and including analog circuitry; and a third electrode electrically connected to the second electrode. The third electrode overlaps the analog circuitry in a plan view, and in all cross-sections perpendicular to a surface of the semiconductor substrate, parallel to the column direction or the row direction, intersecting at least one of the first electrodes, and intersecting the third electrode, no transistor of the digital circuitry is located directly below the third electrode.
-
公开(公告)号:US10951839B2
公开(公告)日:2021-03-16
申请号:US16595292
申请日:2019-10-07
Inventor: Shinichi Machida , Masashi Murakami , Takeyoshi Tokuhara , Masaaki Yanagida , Sanshiro Shishido , Manabu Nakata , Masumi Izuchi
Abstract: An imaging apparatus includes a unit pixel including a pixel electrode; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the pixel electrode and the counter electrode; and a computing circuit that acquires a first signal upon a first voltage being applied between the pixel electrode and the counter electrode, the first signal corresponding to an image captured with visible light and infrared light and a second signal upon a second voltage being applied between the pixel electrode and the counter electrode, the second signal corresponding to an image captured with visible light, and generates a third signal by performing a computation using the first signal and the second signal, the third signal corresponding to an image captured with infrared light.
-
公开(公告)号:US10461130B2
公开(公告)日:2019-10-29
申请号:US15938374
申请日:2018-03-28
Inventor: Takeyoshi Tokuhara , Shinichi Machida
Abstract: An imaging device includes: a photoelectric converter including first and second electrodes, a photoelectric conversion layer therebetween, and an electron-blocking layer between the first electrode and the photoelectric conversion layer; and a signal detection circuit connected to the first electrode. The photoelectric converter is adapted to be applied with a voltage between the first and second electrodes. An electron-blocking material in the electron-blocking layer has an ionization potential higher than both a work function of a conducting material in the first electrode and an ionization potential of a photoelectric conversion material in the photoelectric conversion layer, which allows the photoelectric converter to have a range of the voltage within which a density of current passing between the first and second electrodes when light is incident on the photoelectric conversion layer is substantially equal to that when no light is incident. The range of the voltage is 0.5 V or more.
-
公开(公告)号:US10368027B2
公开(公告)日:2019-07-30
申请号:US16241714
申请日:2019-01-07
Inventor: Shinichi Machida , Takeyoshi Tokuhara , Manabu Nakata , Sanshiro Shishido , Masaaki Yanagida , Masumi Izuchi
Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
-
公开(公告)号:US10212379B2
公开(公告)日:2019-02-19
申请号:US15872016
申请日:2018-01-16
Inventor: Shinichi Machida , Takeyoshi Tokuhara , Manabu Nakata , Sanshiro Shishido , Masaaki Yanagida , Masumi Izuchi
Abstract: An imaging apparatus includes a unit pixel including a pixel electrode, a charge accumulation region electrically connected to the pixel electrode, and a signal detection circuit electrically connected to the charge accumulation region; a counter electrode facing the pixel electrode; a photoelectric conversion layer disposed between the electrodes; and a voltage supply circuit configured to selectively apply any one of first, second, and third voltages between the electrodes. The photoelectric conversion layer exhibits first and second wavelength sensitivity characteristics in a wavelength range when the voltage supply circuit applies the first and second voltages between the electrodes, respectively, and becomes insensitive to light in the wavelength range when the voltage supply circuit applies the third voltage between the electrodes.
-
公开(公告)号:US09857592B2
公开(公告)日:2018-01-02
申请号:US14859203
申请日:2015-09-18
Inventor: Takeyoshi Tokuhara , Seiji Nishiwaki , Tsuguhiro Korenaga , Yoshio Shimbo
CPC classification number: G02B27/0172 , G02B2027/0123 , G02B2027/0134 , G02B2027/0178 , G02C11/10
Abstract: A display device of the disclosure includes a projector including optical elements to project images on left or right eye of an observer and a frame connected to the projector for mounting on the observer. With the frame mounted on the observer, at least part of the projector is placed in visual fields of the eyes, and length from tangent point between leftmost one among lines of sight of the left eye overlapping outline of at least the part and the outline to intersection between an imaginary line through the tangent point parallel to direction of pupillary distance of the observer and rightmost one among lines of sight of the right eye overlapping the outline is shorter than the pupillary distance in a top plan view of the display device.
-
公开(公告)号:US09645401B2
公开(公告)日:2017-05-09
申请号:US14955083
申请日:2015-12-01
Inventor: Seiji Nishiwaki , Takeyoshi Tokuhara , Yoshio Shimbo , Tsuguhiro Korenaga
CPC classification number: G02B27/2214 , G02B3/0043 , G02B17/0856 , G02B27/144 , H04N13/307 , H04N13/344 , H04N13/346
Abstract: An image display device according to an aspect of the present disclosure includes: a display including light-emitting elements arrayed two-dimensionally, and having regions, in each of which a part of the light-emitting elements is located; a mirror lens array including mirror lenses, each of the mirror lenses being disposed correspondingly to one of the regions, reflecting light from the regions, and forming virtual images; and a beam splitter disposed between the display and the mirror lens array, the beam splitter transmitting a part of the light from the regions in a direction of the mirror lens array and reflecting a part of reflected light from the mirror lens array.
-
公开(公告)号:US12266667B2
公开(公告)日:2025-04-01
申请号:US18322621
申请日:2023-05-24
Inventor: Takeyoshi Tokuhara , Yasuo Miyake , Hidenari Kanehara
IPC: H01L27/146 , H04N25/709 , H04N25/77
Abstract: An imaging device includes a photoelectric conversion layer that includes a first surface and a second surface opposite the first surface and that generates signal charge, at least one pixel electrode located on the first surface of the photoelectric conversion layer, a control electrode located on the first surface of the photoelectric conversion layer, a counter electrode located on the second surface of the photoelectric conversion layer and opposite the at least one pixel electrode and the control electrode, and a charge accumulator that is connected to the at least one pixel electrode and that accumulates the signal charge. There is a line segment connecting two points on the at least one pixel electrode to each other and overlapping the control electrode in plan view.
-
公开(公告)号:US12120445B2
公开(公告)日:2024-10-15
申请号:US18516508
申请日:2023-11-21
Inventor: Yasuo Miyake , Yusuke Okada , Takeyoshi Tokuhara , Yoshiaki Satou
IPC: H04N25/75 , H04N25/589 , H04N25/772
CPC classification number: H04N25/75 , H04N25/589 , H04N25/772
Abstract: An imaging device 100 includes a pixel array PA. A first period, a third period, and a second period appear in this order in a first frame. During the first period, pixel signal readout is performed on a first row in the pixel array PA. During the second period, pixel signal readout is performed on a second row in the pixel array PA. Each of the first period and the second period is a high-sensitivity exposure period. The third period is a low-sensitivity exposure period.
-
公开(公告)号:US12119362B2
公开(公告)日:2024-10-15
申请号:US17185129
申请日:2021-02-25
Inventor: Sanshiro Shishido , Shinichi Machida , Takeyoshi Tokuhara , Katsuya Nozawa
IPC: H01L27/14 , G02B5/20 , H01L27/146 , H01L31/0352 , H01L31/0384 , H01L27/142 , H01L31/0256
CPC classification number: H01L27/14625 , G02B5/208 , H01L27/14621 , H01L27/14627 , H01L27/14667 , H01L31/035218 , H01L31/035227 , H01L31/03845 , H01L27/142 , H01L27/14643 , H01L2031/0344
Abstract: A light sensor includes a photoelectric conversion layer and a long-pass filter that is disposed above the photoelectric conversion layer. The photoelectric conversion layer has a spectral sensitivity characteristic having a first peak at a first wavelength that is longer than a cut-on wavelength of the long-pass filter, and a spectral sensitivity of the photoelectric conversion layer at the cut-on wavelength is greater than or equal to 0% and less than or equal to 50% of a spectral sensitivity of the photoelectric conversion layer at the first wavelength.
-
-
-
-
-
-
-
-
-