Patents by Inventor Tetsuo Ariyoshi
Tetsuo Ariyoshi 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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Publication number: 20250102809Abstract: A display device includes a light guide plate; an input grating on a first surface of the light guide plate and configured to generate a diffracted transmission beam; an output grating on the first surface of the light guide plate and spaced apart from the input grating, wherein the output grating is configured to generate a first output beam emitted from the light guide plate; and an optical efficiency enhancement layer on a second surface of the light guide plate and overlapping at least one of the input grating and the output grating in a traveling direction of the input beam, the second surface being opposite to the first surface.Type: ApplicationFiled: December 11, 2024Publication date: March 27, 2025Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangwoo HA, Tetsuo ARIYOSHI, Sornoon PARK, llseop WON, Jongpil WON
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Patent number: 12196969Abstract: A display device includes a light guide plate; an input grating on a first surface of the light guide plate and configured to generate a diffracted transmission beam; an output grating on the first surface of the light guide plate and spaced apart from the input grating, wherein the output grating is configured to generate a first output beam emitted from the light guide plate; and an optical efficiency enhancement layer on a second surface of the light guide plate and overlapping at least one of the input grating and the output grating in a traveling direction of the input beam, the second surface being opposite to the first surface.Type: GrantFiled: June 14, 2022Date of Patent: January 14, 2025Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangwoo Ha, Tetsuo Ariyoshi, Soomoon Park, Ilseop Won, Jongpil Won
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Patent number: 12072535Abstract: Provided is a display device including a light guide plate; a reflective prism configured to reflect an imaging beam toward the light guide plate, wherein the imaging beam reflected by the reflective prism travels within the light guide plate at an angle greater than a critical angle of the light guide plate; and a diffraction grating configured to diffract the imaging beam traveling within the light guide plate to an angle less than or equal to the critical angle of the light guide plate, wherein the reflective prism includes a first surface in contact with the light guide plate, and a second surface configured to reflect the imaging beam.Type: GrantFiled: March 18, 2022Date of Patent: August 27, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soomoon Park, Tetsuo Ariyoshi, Ilseop Won, Jongpil Won, Sangwoo Ha
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Patent number: 11908982Abstract: A light-emitting diode (LED) package includes an LED chip on a substrate, an adhesive phosphor film on the LED chip, a cell lens on the adhesive phosphor film, and a lateral reflective layer covering respective lateral surfaces of the LED chip, the adhesive phosphor film, and the cell lens, a lateral surface of the lateral reflective layer being coplanar with a lateral surface of the substrate.Type: GrantFiled: April 29, 2021Date of Patent: February 20, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jongsup Song, Tetsuo Ariyoshi, Taehyun Lee
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Patent number: 11762256Abstract: A light emitting diode (LED) package includes a substrate having a pair of first wiring electrodes and a pair of second wiring electrodes, an LED chip on the substrate, the LED chip being electrically connected to the pair of first wiring electrodes, a wavelength conversion film on the LED chip, an electrochromic film on the wavelength conversion film, the electrochromic film electrically connected to the pair of second wiring electrodes, and the electrochromic film being configured to have a first color before application of a voltage and to be transparent after application of the voltage, an optical lens on the electrochromic film, and a lateral structure having a reflective layer covering at least a portion of a lateral surface of each of the LED chip and the wavelength conversion film, and a color layer on the reflective layer and having a second color.Type: GrantFiled: July 9, 2021Date of Patent: September 19, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jongsup Song, Tetsuo Ariyoshi, Taehyun Lee
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Publication number: 20230011039Abstract: A display device includes a light guide plate; an input grating on a first surface of the light guide plate and configured to generate a diffracted transmission beam; an output grating on the first surface of the light guide plate and spaced apart from the input grating, wherein the output grating is configured to generate a first output beam emitted from the light guide plate; and an optical efficiency enhancement layer on a second surface of the light guide plate and overlapping at least one of the input grating and the output grating in a traveling direction of the input beam, the second surface being opposite to the first surface.Type: ApplicationFiled: June 14, 2022Publication date: January 12, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangwoo Ha, Tetsuo Ariyoshi, Soomoon Park, Ilseop Won, Jongpil Won
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Publication number: 20230011557Abstract: Provided is a display device including a light guide plate; a reflective prism configured to reflect an imaging beam toward the light guide plate, wherein the imaging beam reflected by the reflective prism travels within the light guide plate at an angle greater than a critical angle of the light guide plate; and a diffraction grating configured to diffract the imaging beam traveling within the light guide plate to an angle less than or equal to the critical angle of the light guide plate, wherein the reflective prism includes a first surface in contact with the light guide plate, and a second surface configured to reflect the imaging beam.Type: ApplicationFiled: March 18, 2022Publication date: January 12, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soomoon PARK, Tetsuo ARIYOSHI, Ilseop WON, Jongpil WON, Sangwoo HA
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Publication number: 20230008461Abstract: An optical device for exit pupil expansion (EPE) for improving a field of view (FOV) and luminance uniformity, and a display apparatus including the same are provided. The optical device includes: an input part into which a virtual image is input; and an EPE part configured to receive the virtual image from the input part, perform one-dimensional (1D) EPE and two-dimensional (2D) EPE to combine the virtual image with an external real image, and output the combined image.Type: ApplicationFiled: January 28, 2022Publication date: January 12, 2023Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sangwoo HA, Tetsuo Ariyoshi, Heejin Kim, Soomoon Park, Jongpil Won
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Publication number: 20220163861Abstract: A light emitting diode (LED) package includes a substrate having a pair of first wiring electrodes and a pair of second wiring electrodes, an LED chip on the substrate, the LED chip being electrically connected to the pair of first wiring electrodes, a wavelength conversion film on the LED chip, an electrochromic film on the wavelength conversion film, the electrochromic film electrically connected to the pair of second wiring electrodes, and the electrochromic film being configured to have a first color before application of a voltage and to be transparent after application of the voltage, an optical lens on the electrochromic film, and a lateral structure having a reflective layer covering at least a portion of a lateral surface of each of the LED chip and the wavelength conversion film, and a color layer on the reflective layer and having a second color.Type: ApplicationFiled: July 9, 2021Publication date: May 26, 2022Inventors: Jongsup SONG, Tetsuo ARIYOSHI, Taehyun LEE
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Publication number: 20220109089Abstract: A light-emitting diode (LED) package includes an LED chip on a substrate, an adhesive phosphor film on the LED chip, a cell lens on the adhesive phosphor film, and a lateral reflective layer covering respective lateral surfaces of the LED chip, the adhesive phosphor film, and the cell lens, a lateral surface of the lateral reflective layer being coplanar with a lateral surface of the substrate.Type: ApplicationFiled: April 29, 2021Publication date: April 7, 2022Inventors: Jongsup SONG, Tetsuo ARIYOSHI, Taehyun LEE
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Patent number: 11217574Abstract: A light emitting diode (LED) module includes a substrate, an LED package, a light sensor and a lens. The LED package includes a light emitting region and is mounted on an upper surface of the substrate. The light sensor includes a light receiving region and is mounted on the upper surface of the substrate horizontally adjacent the LED package. The lens is vertically aligned over the light emitting region of the LED package and at least partially overlaps the light receiving region of the light sensor.Type: GrantFiled: April 14, 2020Date of Patent: January 4, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Jongsup Song, Tetsuo Ariyoshi, Taehyun Lee, Seolyoung Choi
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Publication number: 20210043614Abstract: A light emitting diode (LED) module includes a substrate, an LED package, a light sensor and a lens. The LED package includes a light emitting region and is mounted on an upper surface of the substrate. The light sensor includes a light receiving region and is mounted on the upper surface of the substrate horizontally adjacent the LED package. The lens is vertically aligned over the light emitting region of the LED package and at least partially overlaps the light receiving region of the light sensor.Type: ApplicationFiled: April 14, 2020Publication date: February 11, 2021Inventors: Jongsup Song, Tetsuo Ariyoshi, Taehyun Lee, Seolyoung Choi
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Patent number: 10678036Abstract: An optical device is provided. The optical device includes a first surface that defines a concave light incident surface facing a central axis and a light source; a second surface disposed opposite the first surface which is configured to reflect light incident on the concave light incident surface; and an inclined light exit surface between the first surface and the second surface. The second surface includes a concave first reflective portion curving toward the first surface, and a substantially flat second reflective portion which portion is interposed between a first reflective portion edge of the first reflective portion and an outer second surface edge of the second surface. The first reflective portion is configured to totally reflect light incident at a predetermined angle or more with respect to a top surface of the light source once to the light exit surface.Type: GrantFiled: June 28, 2018Date of Patent: June 9, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Woo Ha, Tetsuo Ariyoshi, Kyung Mi Moon, Jong Sup Song, Jong Pil Won
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Publication number: 20190155009Abstract: An optical device is provided. The optical device includes a first surface that defines a concave light incident surface facing a central axis and a light source; a second surface disposed opposite the first surface which is configured to reflect light incident on the concave light incident surface; and an inclined light exit surface between the first surface and the second surface. The second surface includes a concave first reflective portion curving toward the first surface, and a substantially flat second reflective portion which portion is interposed between a first reflective portion edge of the first reflective portion and an outer second surface edge of the second surface. The first reflective portion is configured to totally reflect light incident at a predetermined angle or more with respect to a top surface of the light source once to the light exit surface.Type: ApplicationFiled: June 28, 2018Publication date: May 23, 2019Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sang Woo HA, Tetsuo ARIYOSHI, Kyung Mi MOON, Jong Sup SONG, Jong Pil WON
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Patent number: 9989197Abstract: An optical device and a light source module including the same are provided. The optical device includes a first surface having an incident portion; a second surface emitting light incident through the incident portion outwardly; a support portion protruding from the first surface; and a blocking portion surrounding an outer portion of the support portion, the blocking portion being stepped with respect to the first surface.Type: GrantFiled: May 19, 2016Date of Patent: June 5, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won Soo Ji, Tetsuo Ariyoshi, Sang Woo Ha
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Patent number: 9897266Abstract: A light source module includes a light source, a light guide plate on the light source and including at least one recess portion in an upper surface thereof, and a filter sheet on an upper surface of the light guide plate and having a pattern. The pattern may be configured to partially reflect and partially transmit light emitted from the light source through the light guide plate.Type: GrantFiled: September 29, 2016Date of Patent: February 20, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung Mi Moon, Sang Woo Ha, Jong Sup Song, Tetsuo Ariyoshi, Jun Cho, Won Soo Ji
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Patent number: 9841161Abstract: There is provided a lens for a light emitter which includes: a bottom surface; an incident surface connected to the bottom surface at a central region of the bottom surface and disposed on or above a light source to allow light emitted from the light source to be made incident thereto and travel in an interior of the lens; and an output surface connected to the bottom surface at an edge of the bottom surface and configured to allow the light which has traveled in the interior of the lens to be emitted outwardly therefrom, wherein the central region of the bottom surface protrudes with respect to the other region of the bottom surface.Type: GrantFiled: March 4, 2015Date of Patent: December 12, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won Soo Ji, Sung A Choi, Sang Woo Ha, Tetsuo Ariyoshi
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Publication number: 20170261161Abstract: A light source module includes a light source, a light guide plate on the light source and including at least one recess portion in an upper surface thereof, and a filter sheet on an upper surface of the light guide plate and having a pattern. The pattern may be configured to partially reflect and partially transmit light emitted from the light source through the light guide plate.Type: ApplicationFiled: September 29, 2016Publication date: September 14, 2017Applicant: Samsung Electronics Co., Ltd.Inventors: Kyung Mi MOON, Sang Woo HA, Jong Sup SONG, Tetsuo ARIYOSHI, Jun CHO, Won Soo JI
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Publication number: 20160356453Abstract: An optical device and a light source module including the same are provided. The optical device includes a first surface having an incident portion; a second surface emitting light incident through the incident portion outwardly; a support portion protruding from the first surface; and a blocking portion surrounding an outer portion of the support portion, the blocking portion being stepped with respect to the first surface.Type: ApplicationFiled: May 19, 2016Publication date: December 8, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won Soo JI, Tetsuo ARIYOSHI, Sang Woo HA
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Publication number: 20160131327Abstract: There is provided a light source module including a light emitting device, and an optical device including a first surface disposed above the light emitting device and having a hollow recessed in a light emitting direction in a central portion through which an optical axis passes, and a second surface disposed to be opposite to the first surface and configured to refract light incident through the hollow to be emitted to the outside. The optical device includes a plurality of ridges disposed on the second surface and periodically arranged in a direction from the optical axis to an edge connected to the first surface.Type: ApplicationFiled: August 12, 2015Publication date: May 12, 2016Inventors: Kyung Mi MOON, Tetsuo ARIYOSHI, Jong Pil WON, Seung Gyun JUNG, Jun CHO, Won Soo JI, Sung A CHOI