Patents by Inventor Chae Hon KIM
Chae Hon KIM 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: 12250839Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.Type: GrantFiled: December 6, 2023Date of Patent: March 11, 2025Assignee: Seoul Viosys Co., Ltd.Inventors: Yong Hyun Baek, Ji Hun Kang, Chae Hon Kim, Ji Hoon Park, So Ra Lee
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Publication number: 20250022984Abstract: A light emitting diode includes an n-type nitride semiconductor layer, a V-pit generation layer located over the n-type nitride semiconductor layer and having a V-pit, an active layer located on the V-pit generation layer, and a p-type nitride semiconductor layer located on the active layer. The active layer includes a well layer, which includes a first well layer portion formed along a flat surface of the V-pit generation layer and a second well layer portion formed in the V-pit of the V-pit generation layer. The active layer emits light having at least two peak wavelengths at a single chip level.Type: ApplicationFiled: September 26, 2024Publication date: January 16, 2025Applicant: SEOUL VIOSYS CO., LTD.Inventors: Yong Hyun BAEK, Ji Hun KANG, Chae Hon KIM, Ji Hoon PARK
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Publication number: 20240387770Abstract: A light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The active layer has a single structure of a multi-quantum well in which a plurality of barrier layers and a plurality of well layers are stacked, and the active layer emits white light.Type: ApplicationFiled: July 29, 2024Publication date: November 21, 2024Inventors: Yong Hyun BAEK, Ji Hun KANG, Chae Hon KIM, Ji Hoon PARK
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Patent number: 12125945Abstract: A light emitting diode includes an n-type nitride semiconductor layer, a V-pit generation layer located over the n-type nitride semiconductor layer and having a V-pit, an active layer located on the V-pit generation layer, and a p-type nitride semiconductor layer located on the active layer. The active layer includes a well layer, which includes a first well layer portion formed along a flat surface of the V-pit generation layer and a second well layer portion formed in the V-pit of the V-pit generation layer. The active layer emits light having at least two peak wavelengths at a single chip level.Type: GrantFiled: January 16, 2023Date of Patent: October 22, 2024Assignee: Seoul Viosys Co., Ltd.Inventors: Yong Hyun Baek, Ji Hun Kang, Chae Hon Kim, Ji Hoon Park
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Patent number: 12095001Abstract: A light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The active layer has a single structure of a multi-quantum well in which a plurality of barrier layers and a plurality of well layers are stacked, and the active layer emits white light.Type: GrantFiled: April 12, 2021Date of Patent: September 17, 2024Assignee: Seoul Viosys Co., Ltd.Inventors: Yong Hyun Baek, Ji Hun Kang, Chae Hon Kim, Ji Hoon Park
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Publication number: 20240297208Abstract: A light emitting device for a display including a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, and having a side surface exposing the active layer, in which a portion of the second conductivity type semiconductor layer and the active layer along an edge of the light emitting structure is insulative in a thickness direction to define an insulation region, and the insulation region includes implanted ions.Type: ApplicationFiled: May 10, 2024Publication date: September 5, 2024Applicant: SEOUL VIOSYS CO., LTD.Inventors: Chae Hon KIM, So Ra LEE
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Publication number: 20240222564Abstract: A light emitting diode including a side reflection layer. The light emitting diode includes: a semiconductor stack and a light exit surface having a roughened surface through which light generated from an active layer is emitted; side surfaces defining the light exit surface; and a side reflection layer covering at least part of the side surfaces. The light exit surface is disposed over a first conductivity type semiconductor layer opposite to the ohmic reflection layer, all layers from the active layer to the light exit surface are formed of gallium nitride-based semiconductors, and a distance from the active layer to the light exit surface is 50 ?m or more.Type: ApplicationFiled: March 18, 2024Publication date: July 4, 2024Applicant: Seoul Viosys Co., Ltd.Inventors: Jong Min JANG, Chae Hon KIM, Chang Youn KIM, Jae Hee LIM
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Patent number: 12027571Abstract: A light emitting device for a display including a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, and having a side surface exposing the active layer, in which a portion of the second conductivity type semiconductor layer and the active layer along an edge of the light emitting structure is insulative in a thickness direction to define an insulation region, and the insulation region includes implanted ions.Type: GrantFiled: April 16, 2023Date of Patent: July 2, 2024Assignee: SEOUL VIOSYS CO., LTD.Inventors: Chae Hon Kim, So Ra Lee
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Publication number: 20240136467Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.Type: ApplicationFiled: December 6, 2023Publication date: April 25, 2024Applicant: SEOUL VIOSYS CO., LTD.Inventors: Yong Hyun BAEK, Ji Hun KANG, Chae Hon KIM, Ji Hoon PARK, So Ra LEE
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Patent number: 11935990Abstract: A light emitting diode including a side reflection layer. The light emitting diode includes: a semiconductor stack and a light exit surface having a roughened surface through which light generated from an active layer is emitted; side surfaces defining the light exit surface; and a side reflection layer covering at least part of the side surfaces. The light exit surface is disposed over a first conductivity type semiconductor layer opposite to the ohmic reflection layer, all layers from the active layer to the light exit surface are formed of gallium nitride-based semiconductors, and a distance from the active layer to the light exit surface is 50 ?m or more.Type: GrantFiled: November 29, 2021Date of Patent: March 19, 2024Assignee: Seoul Viosys Co., Ltd.Inventors: Jong Min Jang, Chae Hon Kim, Chang Youn Kim, Jae Hee Lim
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Publication number: 20240063341Abstract: A light-emitting device includes a light generating portion including an active layer interposed between a first conductivity type layer and a second conductivity type layer. The active layer generates light. The light-emitting device further includes a light guide layer disposed on an optical path of light generated from the active layer. The light guide layer includes a textured structure on the optical path. The light guide layer can have a same conductivity type as the first conductivity type layer.Type: ApplicationFiled: October 30, 2023Publication date: February 22, 2024Inventors: Toshiya YOKOGAWA, Chae Hon KIM, Chung Hoon LEE
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Patent number: 11843076Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.Type: GrantFiled: April 3, 2023Date of Patent: December 12, 2023Assignee: Seoul Viosys Co., Ltd.Inventors: Yong Hyun Baek, Ji Hun Kang, Chae Hon Kim, Ji Hoon Park, So Ra Lee
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Patent number: 11804573Abstract: A group III-V light-emitting diode is provided. The light-emitting diode includes a light generating portion including an active layer interposed between a first conductivity type semiconductor layer and a second conductivity type semiconductor layer. The active layer generates light. The light-emitting diode further includes an optical trap disposed on an optical path of light generated from the active layer. The optical trap includes a light absorption layer interposed between light guide layers. The light-emitting diode further includes a side reflector disposed on a side surface of the optical trap.Type: GrantFiled: December 11, 2020Date of Patent: October 31, 2023Assignee: Seoul Viosys Co., Ltd.Inventors: Toshiya Yokogawa, Chae Hon Kim, Chung Hoon Lee
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Publication number: 20230299229Abstract: A display apparatus includes multiple pixels. The pixels can emit one or more colors of light. Light of the same color emitted by two or more of the pixels can have wavelengths that differ by no more than one percent. The pixels can include a stacked structure including two or more subpixels, with each subpixel emitting light of a different color than the other subpixels in the stacked structure.Type: ApplicationFiled: May 22, 2023Publication date: September 21, 2023Applicant: SEOUL VIOSYS CO., LTD.Inventors: Ji Hoon PARK, Ji Hun KANG, Chae Hon KIM, Yong Hyun BAEK, Hyo Shik CHOI
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Publication number: 20230299122Abstract: A light emitting device for a display including a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, and having a side surface exposing the active layer, in which a portion of the second conductivity type semiconductor layer and the active layer along an edge of the light emitting structure is insulative in a thickness direction to define an insulation region, and the insulation region includes implanted ions.Type: ApplicationFiled: April 16, 2023Publication date: September 21, 2023Inventors: Chae Hon KIM, So Ra Lee
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Publication number: 20230246122Abstract: A lighting apparatus includes a light emitting diode, in which the light emitting diode includes an n-type nitride semiconductor layer, an active layer located on the n-type nitride semiconductor layer, and a p-type nitride semiconductor layer located on the active layer. The light emitting diode emits light that varies from yellow light to white light depending on a driving current.Type: ApplicationFiled: April 3, 2023Publication date: August 3, 2023Applicant: SEOUL VIOSYS CO., LTD.Inventors: Yong Hyun BAEK, Ji Hun KANG, Chae Hon KIM, Ji Hoon PARK, So Ra LEE
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Publication number: 20230215977Abstract: A light emitting diode includes an n-type nitride semiconductor layer, a V-pit generation layer located over the n-type nitride semiconductor layer and having a V-pit, an active layer located on the V-pit generation layer, and a p-type nitride semiconductor layer located on the active layer. The active layer includes a well layer, which includes a first well layer portion formed along a flat surface of the V-pit generation layer and a second well layer portion formed in the V-pit of the V-pit generation layer. The active layer emits light having at least two peak wavelengths at a single chip level.Type: ApplicationFiled: January 16, 2023Publication date: July 6, 2023Applicant: SEOUL VIOSYS CO., LTD.Inventors: Yong Hyun BAEK, Ji Hun KANG, Chae Hon KIM, Ji Hoon PARK
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Publication number: 20230197913Abstract: A light emitting device and a light emitting module including the same are disclosed. The light emitting module may include: a circuit board; a plurality of light emitting devices disposed on the circuit board and emitting UV light; a plurality of wavelength conversion portions each disposed on a light emission surface of the light emitting device emitting UV light and converting a wavelength of light emitted from the light emitting device; and a molding portion covering the light emitting devices and the wavelength conversion portions formed on the circuit board. Each of the light emitting devices may include a first semiconductor layer, a second semiconductor layer, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. One surface of the first semiconductor layer may correspond to the light emission surface of the light emitting device.Type: ApplicationFiled: December 16, 2022Publication date: June 22, 2023Applicant: SEOUL VIOSYS CO., LTD.Inventors: Seom Geun LEE, Ki Ho PARK, Jong Min JANG, Chae Hon KIM, Sang Min KIM
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Patent number: 11658263Abstract: A method of fabricating a light emitting device includes (i) determining whether each measurement location is defective or not based on a measurement result of the emission wavelength of each location, (ii) forming a test stacked structure by combining one of the first wafers, one of the second wafers, and one of the third wafers in a set of wafers, and (iii) calculating a combination yield of the test stacked structure based on a count of defective measurement locations that overlap in the test stacked structure.Type: GrantFiled: March 5, 2021Date of Patent: May 23, 2023Assignee: Seoul Viosys Co., Ltd.Inventors: Ji Hoon Park, Ji Hun Kang, Chae Hon Kim, Yong Hyun Baek, Hyo Shik Choi
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Patent number: 11631714Abstract: A light emitting device for a display including a light emitting structure including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, and having a side surface exposing the active layer, in which a portion of the second conductivity type semiconductor layer and the active layer along an edge of the light emitting structure is insulative in a thickness direction to define an insulation region, and the insulation region includes implanted ions.Type: GrantFiled: December 20, 2020Date of Patent: April 18, 2023Assignee: SEOUL VIOSYS CO., LTD.Inventors: Chae Hon Kim, So Ra Lee