Patents by Inventor Yoshiaki Kouyama
Yoshiaki Kouyama has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11953781Abstract: An apparatus includes a light source unit that emits color light beams having different wavelengths; a light intensity modulation element including pixels, and subjecting the color light beams to intensity modulation to generate an image; a diffraction element configured to simultaneously illuminate at least two pixel regions at different pixel positions, with different color light beams, by diffracting the respective color light beams from the light source unit toward pixel regions at different pixel positions on the light intensity modulation element; and a control unit that changes diffraction angles of the respective color light beams in the diffraction element within a predetermined period. The control unit also sequentially switches illumination regions for the pixel regions by the respective color light beams, to allow all of the color light beams to time-divisionally illuminate any pixel region of the pixel regions within the predetermined period.Type: GrantFiled: December 11, 2019Date of Patent: April 9, 2024Assignee: Sony Semiconductor Solutions CorporationInventor: Yoshiaki Kouyama
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Publication number: 20230350344Abstract: User experience is improved. An information processing device includes: a grouping unit (21) that groups a plurality of pixels configuring one or more objects included in one piece of image data into one or more groups; a phase adjustment unit (22) that allocates, to the plurality of pixels, a phase pattern having a phase difference different for each of the one or more groups; and a calculation unit (30) that generates hologram data from the image data to which the phase pattern is added.Type: ApplicationFiled: May 26, 2021Publication date: November 2, 2023Applicant: SONY GROUP CORPORATIONInventors: Shihhao WEN, Masato AKAO, Yoshiaki KOUYAMA
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Patent number: 11796904Abstract: A phase modulator of the present disclosure includes a phase distribution arithmetic unit that generates, in a case of reproducing the same reproduction image over a plurality of frames or a plurality of subframes by a light phase modulation element, target phase distribution data that is allowed to reproduce the same reproduction image in at least two adjacent frames among the plurality of frames or in at least two adjacent subframes among the plurality of subframes and that changes phase distribution in the light phase modulation element.Type: GrantFiled: July 24, 2018Date of Patent: October 24, 2023Assignees: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Yoshiaki Kouyama, Osamu Akimoto, Takahiro Mochizuki, Masa Tanaka
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Patent number: 11676546Abstract: A display apparatus includes a light source, an optical phase modulator, a drive circuit, and a controller. The optical phase modulator includes a plurality of pixels, and modulates a phase of light from the light source for each of the pixels by displaying a phase distribution pattern indicated by phase distribution data. The drive circuit performs voltage application to the optical phase modulator based on the phase distribution data. The controller divides a pixel region in the optical phase modulator into a plurality of division regions. The controller causes the drive circuit to perform voltage application based on adjustment data to perform display in at least one division region of the plurality of division regions. The adjustment data is for determining an amount of voltage application performed by the drive circuit. The amount of voltage application corresponds to the phase distribution data. The display is based on the adjustment data.Type: GrantFiled: November 25, 2019Date of Patent: June 13, 2023Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Yoshiaki Kouyama
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Publication number: 20230176437Abstract: An information processing device (100) includes an adjustment unit (123) that shifts a phase distribution range of light passing through a phase modulation element with respect to a phase-modulatable range of the phase modulation element in such a way that a difference between a median value of the phase-modulatable range and an average value of the phase distribution range becomes small.Type: ApplicationFiled: April 5, 2021Publication date: June 8, 2023Inventor: YOSHIAKI KOUYAMA
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Patent number: 11630339Abstract: A display element according to an embodiment of the present technology includes an optical control layer and a lens layer. The optical control layer modulates incident light for each pixel. The lens layer includes an incident surface, a plurality of refractive lenses disposed for each pixel, and a plurality of diffractive lenses disposed for each pixel to face the plurality of refractive lenses, and emits light incident from the incident surface and passing through the plurality of refractive lenses and the plurality of diffractive lenses to the optical control layer.Type: GrantFiled: December 24, 2019Date of Patent: April 18, 2023Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Yoshiaki Kouyama
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Patent number: 11353763Abstract: A phase modulation device of the present disclosure includes: a light source; and an optical phase modulation element including a plurality of pixels in each of which liquid crystal molecules are arrayed, and including a plurality of pixel regions each including the plurality of pixels, the optical phase modulation element modulating, for each of the pixels, a phase of incident light entering the plurality of pixel regions from the light source. The optical phase modulation element includes, as the plurality of pixel regions, at least one first alignment region where an alignment direction of the liquid crystal molecules is a first direction parallel with a polarization axis of the incident light, and at least one second alignment region where an alignment direction of the liquid crystal molecules is a second direction parallel with the polarization axis of the incident light and different from the first direction by 180 degrees.Type: GrantFiled: April 16, 2019Date of Patent: June 7, 2022Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Yoshiaki Kouyama
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Publication number: 20220082887Abstract: A display apparatus of the present disclosure includes: a light source unit that emits color light beams having different wavelengths; a light intensity modulation element including pixels, and subjecting the color light beams to intensity modulation to generate an image; a diffraction element configured to simultaneously illuminate at least two pixel regions at different pixel positions, with different color light beams, by diffracting the respective color light beams from the light source unit toward pixel regions at different pixel positions on the light intensity modulation element; and a control unit that changes diffraction angles of the respective color light beams in the diffraction element within a predetermined period, and sequentially switches illumination regions for the pixel regions by the respective color light beams, to allow all of the color light beams to time-divisionally illuminate any pixel region of the pixel regions within the predetermined period.Type: ApplicationFiled: December 11, 2019Publication date: March 17, 2022Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventor: Yoshiaki KOUYAMA
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Publication number: 20220084475Abstract: A display apparatus according to the present disclosure includes: a light source; an optical phase modulator; a drive circuit; and a controller. The optical phase modulator includes a plurality of pixels. The optical phase modulator modulates a phase of light from the light source for each of the pixels by displaying a phase distribution pattern indicated by phase distribution data. The drive circuit performs voltage application to the optical phase modulator. The voltage application is based on the phase distribution data. The controller divides a pixel region in the optical phase modulator into a plurality of division regions. The controller causes the drive circuit to perform voltage application based on adjustment data to perform display in at least one division region of the plurality of division regions. The adjustment data is for determining an amount of voltage application performed by the drive circuit. The amount of voltage application corresponds to the phase distribution data.Type: ApplicationFiled: November 25, 2019Publication date: March 17, 2022Inventor: YOSHIAKI KOUYAMA
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Publication number: 20220066261Abstract: A display element according to an embodiment of the present technology includes an optical control layer and a lens layer. The optical control layer modulates incident light for each pixel. The lens layer includes an incident surface, a plurality of refractive lenses disposed for each pixel, and a plurality of diffractive lenses disposed for each pixel to face the plurality of refractive lenses, and emits light incident from the incident surface and passing through the plurality of refractive lenses and the plurality of diffractive lenses to the optical control layer.Type: ApplicationFiled: December 24, 2019Publication date: March 3, 2022Inventor: YOSHIAKI KOUYAMA
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Publication number: 20210141261Abstract: A phase modulation device of the present disclosure includes: a light source; and an optical phase modulation element including a plurality of pixels in each of which liquid crystal molecules are arrayed, and including a plurality of pixel regions each including the plurality of pixels, the optical phase modulation element modulating, for each of the pixels, a phase of incident light entering the plurality of pixel regions from the light source. The optical phase modulation element includes, as the plurality of pixel regions, at least one first alignment region where an alignment direction of the liquid crystal molecules is a first direction parallel with a polarization axis of the incident light, and at least one second alignment region where an alignment direction of the liquid crystal molecules is a second direction parallel with the polarization axis of the incident light and different from the first direction by 180 degrees.Type: ApplicationFiled: April 16, 2019Publication date: May 13, 2021Inventor: YOSHIAKI KOUYAMA
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Patent number: 10991329Abstract: A control circuit according to an embodiment of the disclosure performs control of active matrix driving by a field inversion driving method to cause a vertical effective display period in one field period to be close to a start time of the one field period upon observation of a waveform of a signal outputted from the control circuit with display resolution of 200 ?sec or display resolution lower than display resolution of 200 ?sec. The one field period is defined by a vertical start signal.Type: GrantFiled: May 26, 2016Date of Patent: April 27, 2021Assignee: SONY CORPORATIONInventors: Seiichiro Jinta, Yoshiaki Kouyama
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Publication number: 20200159102Abstract: A phase modulator of the present disclosure includes a phase distribution arithmetic unit that generates, in a case of reproducing the same reproduction image over a plurality of frames or a plurality of subframes by a light phase modulation element, target phase distribution data that is allowed to reproduce the same reproduction image in at least two adjacent frames among the plurality of frames or in at least two adjacent subframes among the plurality of subframes and that changes phase distribution in the light phase modulation element.Type: ApplicationFiled: July 24, 2018Publication date: May 21, 2020Inventors: YOSHIAKI KOUYAMA, OSAMU AKIMOTO, TAKAHIRO MOCHIZUKI, MASA TANAKA
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Publication number: 20180151138Abstract: A control circuit according to an embodiment of the disclosure performs control of active matrix driving by a field inversion driving method to cause a vertical effective display period in one field period to be close to a start time of the one field period upon observation of a waveform of a signal outputted from the control circuit with display resolution of 200 ?sec or display resolution lower than display resolution of 200 ?sec. The one field period is defined by a vertical start signal.Type: ApplicationFiled: May 26, 2016Publication date: May 31, 2018Inventors: SEIICHIRO JINTA, YOSHIAKI KOUYAMA
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Patent number: 8096669Abstract: A surface light source device includes a light source facing a reflective surface of a reflecting member, and a light-controlling member composed of a transparent material and disposed across the light source from the reflecting member in such a manner as to face the reflective surface, the light-controlling member guiding light emitted from the light source in a predetermined direction. The light-controlling member has on a surface thereof remote from the reflective surface projections arranged on a plane. The projections have profiles of at least one kind, each having a symmetry axis or a symmetry plane. The symmetry axes or the symmetry planes of the projections are tilted at a predetermined angle with respect to a direction in which the light controlling member faces the reflecting member.Type: GrantFiled: January 15, 2009Date of Patent: January 17, 2012Assignee: Sony CorporationInventors: Atsushi Ito, Yoshiaki Kouyama
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Patent number: 8075151Abstract: A surface light source device includes a diffusing member which diffuses light, a reflective member which reflects light, plural light sources provided aligned in a flat manner between the diffusing member and the reflective member, and a light control member provided between the plural light sources and the reflective member as well as arranged in a state that a gap is imposed between the reflective member and the light control member, which has a light-guiding function of guiding part of light emitted from respective light sources in an alignment direction of the light sources, in which the light control member has a rugged structure portion in which geometric shapes in cross section are continuously formed on at least one surface.Type: GrantFiled: April 14, 2009Date of Patent: December 13, 2011Assignee: Sony CorporationInventors: Atsushi Ito, Yoshiaki Kouyama
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Publication number: 20090262521Abstract: A surface light source device includes a diffusing member which diffuses light, a reflective member which reflects light, plural light sources provided aligned in a flat manner between the diffusing member and the reflective member, and a light control member provided between the plural light sources and the reflective member as well as arranged in a state that a gap is imposed between the reflective member and the light control member, which has a light-guiding function of guiding part of light emitted from respective light sources in an alignment direction of the light sources, in which the light control member has a rugged structure portion in which geometric shapes in cross section are continuously formed on at least one surface.Type: ApplicationFiled: April 14, 2009Publication date: October 22, 2009Applicant: Sony CorporationInventors: Atsushi Ito, Yoshiaki Kouyama
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Publication number: 20090185364Abstract: A surface light source device includes a light source facing a reflective surface of a reflecting member, and a light-controlling member composed of a transparent material and disposed across the light source from the reflecting member in such a manner as to face the reflective surface, the light-controlling member guiding light emitted from the light source in a predetermined direction. The light-controlling member has on a surface thereof remote from the reflective surface projections arranged on a plane. The projections have profiles of at least one kind, each having a symmetry axis or a symmetry plane. The symmetry axes or the symmetry planes of the projections are tilted at a predetermined angle with respect to a direction in which the light controlling member faces the reflecting member.Type: ApplicationFiled: January 15, 2009Publication date: July 23, 2009Inventors: Atsushi ITO, Yoshiaki Kouyama