Patents by Inventor Wal Jun Kim
Wal Jun 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: 11925093Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.Type: GrantFiled: December 5, 2022Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyunbae Park, Seunghee Lee, Wal Jun Kim, Kiwan Ahn, Joosun Yoon
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Publication number: 20230363232Abstract: A color conversion panel includes a substrate including a display area including a color conversion layer, a first pixel area, a second pixel area, and a non-pixel area, and a plurality of color filter layers on the substrate. The color filter layers include a first color filter layer in the first pixel area and defining in the non-pixel area, a first alignment pattern, and a first opening spaced from the first alignment pattern, the first pixel area and the second pixel area, and a second color filter layer in the second pixel area, covering the first alignment pattern of the first color filter layer and defining in the non-pixel area a second alignment pattern which overlaps the first opening of the first color filter layer and exposes a portion of the first color filter layer at the first opening, to outside the second color filter layer.Type: ApplicationFiled: February 9, 2023Publication date: November 9, 2023Inventors: SEUNGHUI SEO, TAE WOO LIM, MOON-KEUN CHOI, WAL JUN KIM, HYUNBAE PARK, Hyelynn Song
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Publication number: 20230345791Abstract: A color conversion substrate includes a base substrate including a display area and a non-display area which is adjacent to the display area in a first direction, a color filter layer in the display area, a light blocking member in the non-display area, extending in the first direction and defining a pattern groove of the light blocking member, the pattern groove being in the non-display area, and a refractive layer facing the base substrate with both the color filter layer and the light blocking member therebetween. The refractive layer extends into the pattern groove of the light blocking member and fills the pattern groove.Type: ApplicationFiled: December 19, 2022Publication date: October 26, 2023Inventors: WAL JUN KIM, HYUNBAE PARK, KIWAN AHN, YONGJAE JANG
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Publication number: 20230157053Abstract: A display device may include a first substrate including an upper surface; a second substrate including a rear surface facing the upper surface; a sealing member disposed between the first substrate and the second substrate; light emitting elements disposed on the upper surface; a circuit layer disposed between the first substrate and the light emitting elements, and including driving elements respectively connected to the light emitting elements; an alignment pattern disposed on the upper surface and spaced apart from the light emitting elements; a color filter layer including color filters disposed on the rear surface, and having a penetration portion aligned with the alignment pattern; a filling member disposed between the color filter layer and the light emitting elements; and a filling member blocking portion disposed between the filling member and the penetration portion in a plan view, wherein the filling member may be spaced apart from the penetration portion.Type: ApplicationFiled: September 22, 2022Publication date: May 18, 2023Inventors: DONGGYU KANG, SEDONG KIM, YEONTAEK JEONG, WAL JUN KIM
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Publication number: 20230109521Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.Type: ApplicationFiled: December 5, 2022Publication date: April 6, 2023Inventors: HYUNBAE PARK, SEUNGHEE LEE, WAL JUN KIM, KIWAN AHN, Joosun YOON
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Patent number: 11569308Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.Type: GrantFiled: January 25, 2021Date of Patent: January 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyunbae Park, Seunghee Lee, Wal Jun Kim, Kiwan Ahn, Joosun Yoon
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Publication number: 20210273022Abstract: A color-converting substrate includes a color-converting part including a wavelength-converting particle configured to change a wavelength of an incident light to emit a light having a color different from the incident light, a color filter pattern filtering the light emitted from the color-converting part, and a light-reflective layer disposed between the color-converting part and the color filter pattern to selectively reflect a light having a wavelength same as the wavelength of the incident light.Type: ApplicationFiled: January 25, 2021Publication date: September 2, 2021Inventors: HYUNBAE PARK, SEUNGHEE LEE, WAL JUN KIM, KIWAN AHN, Joosun YOON
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Patent number: 11067801Abstract: A head-mounted display device includes a display including a substrate and a plurality of display elements disposed on the substrate, a first polarizing layer disposed on the display, a reflective layer disposed on the first polarizing layer, a light-separating layer disposed on the reflective layer, a lens disposed on the light-separating layer, and a second polarizing layer disposed on the lens.Type: GrantFiled: September 19, 2018Date of Patent: July 20, 2021Assignee: Samsung Display Co., Ltd.Inventors: Wal Jun Kim, Jin Yeong Kim, Ki Wan Ahn, Joo Sun Yoon, Yong Jae Jang
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Patent number: 10347704Abstract: An organic light-emitting diode (OLED) display device includes a substrate, a first gate electrode on the substrate, a second gate electrode on the first gate electrode and at least partially overlapping the first gate electrode, a semiconductor pattern between the first gate electrode and the second gate electrode and at least partially overlapping the first and second gate electrodes, a connecting electrode on the second gate electrode and electrically connected to the semiconductor pattern, and a pixel electrode on the connecting electrode and electrically connected to the connecting electrode.Type: GrantFiled: October 13, 2017Date of Patent: July 9, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wal Jun Kim, Yong Jae Jang, Ki Wan Ahn, Joo Sun Yoon
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Publication number: 20190086671Abstract: A head-mounted display device includes a display including a substrate and a plurality of display elements disposed on the substrate, a first polarizing layer disposed on the display, a reflective layer disposed on the first polarizing layer, a light-separating layer disposed on the reflective layer, a lens disposed on the light-separating layer, and a second polarizing layer disposed on the lens.Type: ApplicationFiled: September 19, 2018Publication date: March 21, 2019Inventors: Wal Jun Kim, Jin Yeong Kim, Ki Wan Ahn, Joo Sun Yoon, Yong Jae Jang
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Publication number: 20180108720Abstract: An organic light-emitting diode (OLED) display device includes a substrate, a first gate electrode on the substrate, a second gate electrode on the first gate electrode and at least partially overlapping the first gate electrode, a semiconductor pattern between the first gate electrode and the second gate electrode and at least partially overlapping the first and second gate electrodes, a connecting electrode on the second gate electrode and electrically connected to the semiconductor pattern, and a pixel electrode on the connecting electrode and electrically connected to the connecting electrode.Type: ApplicationFiled: October 13, 2017Publication date: April 19, 2018Inventors: Wal Jun KIM, Yong Jae JANG, Ki Wan AHN, Joo Sun YOON
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Patent number: 9835565Abstract: An inspection device of a display device includes a first illumination unit providing a first incident light to the display device at a first incident angle, a second illumination unit providing a second incident light to the display device at a second incident angle, a third illumination unit providing a third incident light to the display device at a third incident angle, and a defect detector receiving at least one of a first reflection light obtained from the first incident light reflected by the display device at a first reflection angle, a second reflection light obtained from the second incident light reflected by the display device at a second reflection angle, and a third reflection light obtained from the third incident light reflected by the display device at a third reflection angle to detect defects of the display device.Type: GrantFiled: June 22, 2015Date of Patent: December 5, 2017Assignee: Samsung Display Co., Ltd.Inventors: Wal jun Kim, JoongYoung Ryu, Seung-Young Baeck, Changhyun Ryu, Deok joo Lim
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Patent number: 9488598Abstract: An inspecting apparatus includes: a stage including a top surface on which a multilayer structure comprising a first layer and a second layer is placed; a first light irradiation unit which faces a first side surface of the multilayer structure and provides light to a first side surface of the first layer or a first side surface of the second layer; an image capture unit which is on the stage, receives scattered light from the multilayer structure and generates image information of the multilayer structure from the received scattered light, and a control unit which detects foreign body information of the multilayer structure based on the image information of the multilayer structure. The scattered light comprises the light which is provided from the first light irradiation unit and is scattered within the multilayer structure.Type: GrantFiled: November 3, 2014Date of Patent: November 8, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wal Jun Kim, Seung Young Baeck
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Publication number: 20160187262Abstract: An inspection device of a display device includes a first illumination unit providing a first incident light to the display device at a first incident angle, a second illumination unit providing a second incident light to the display device at a second incident angle, a third illumination unit providing a third incident light to the display device at a third incident angle, and a defect detector receiving at least one of a first reflection light obtained from the first incident light reflected by the display device at a first reflection angle, a second reflection light obtained from the second incident light reflected by the display device at a second reflection angle, and a third reflection light obtained from the third incident light reflected by the display device at a third reflection angle to detect defects of the display device.Type: ApplicationFiled: June 22, 2015Publication date: June 30, 2016Inventors: Wal jun KIM, JoongYoung RYU, Seung-Young BAECK, Changhyun RYU, Deok joo LIM
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Patent number: 9230770Abstract: The present invention relates to a conductive nanostructure, a method for molding the same, and a method for manufacturing a field emitter using the same. More particularly, the present invention relates to a field-emitting nanostructure comprising a conductive substrate, a conductive nanostructure arranged on the conductive substrate, and a conductive interfacial compound disposed in the interface between the conductive substrate and the conductive nanostructure, as well as to a method for molding the same, and a method for manufacturing a field emitter using the same.Type: GrantFiled: February 23, 2011Date of Patent: January 5, 2016Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Yong Hyup Kim, Wal Jun Kim
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Publication number: 20150346107Abstract: An inspecting apparatus includes: a stage including a top surface on which a multilayer structure comprising a first layer and a second layer is placed; a first light irradiation unit which faces a first side surface of the multilayer structure and provides light to a first side surface of the first layer or a first side surface of the second layer; an image capture unit which is on the stage, receives scattered light from the multilayer structure and generates image information of the multilayer structure from the received scattered light, and a control unit which detects foreign body information of the multilayer structure based on the image information of the multilayer structure. The scattered light comprises the light which is provided from the first light irradiation unit and is scattered within the multilayer structure.Type: ApplicationFiled: November 3, 2014Publication date: December 3, 2015Inventors: Wal Jun KIM, Seung Young BAECK
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Publication number: 20130134860Abstract: The present invention relates to a conductive nanostructure, a method for molding the same, and a method for manufacturing a field emitter using the same. More particularly, the present invention relates to a field-emitting nanostructure comprising a conductive substrate, a conductive nanostructure arranged on the conductive substrate, and a conductive interfacial compound disposed in the interface between the conductive substrate and the conductive nanostructure, as well as to a method for molding the same, and a method for manufacturing a field emitter using the same.Type: ApplicationFiled: February 23, 2011Publication date: May 30, 2013Applicant: SEOUL NATIONAL UNIVERSITY R &DB FOUNDATIONInventors: Yong Hyup Kim, Wal Jun Kim
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Patent number: 8232716Abstract: Field emission devices (FEDs) are provided. In one embodiment, an FED includes an electron emitter, a tube spaced apart from the electron emitter and having a first opening and a second opening, and a gate electrode disposed on an outer surface of the tube. The first opening is disposed at one end of the tube adjacent to the electron emitter, and the second opening is disposed at the other end of the tube. The FED further includes an anode that is spaced apart from the second opening and collects secondary electrons emitted from the second opening.Type: GrantFiled: February 17, 2011Date of Patent: July 31, 2012Assignee: SNU R&DB FoundatonInventors: Yong Hyup Kim, Wal Jun Kim
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Patent number: 8070929Abstract: Techniques for forming metal catalyst particles on a metal tip, and nanostructures on a metal tip are provided.Type: GrantFiled: August 21, 2008Date of Patent: December 6, 2011Assignee: SNU R&DB FoundationInventors: Yong Hyup Kim, Wal Jun Kim
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Publication number: 20110140602Abstract: Field emission devices (FEDs) are provided. In one embodiment, an FED includes an electron emitter, a tube spaced apart from the electron emitter and having a first opening and a second opening, and a gate electrode disposed on an outer surface of the tube. The first opening is disposed at one end of the tube adjacent to the electron emitter, and the second opening is disposed at the other end of the tube. The FED further includes an anode that is spaced apart from the second opening and collects secondary electrons emitted from the second opening.Type: ApplicationFiled: February 17, 2011Publication date: June 16, 2011Applicant: SNU R&DB FOUNDATIONInventors: Yong Hyup Kim, Wal Jun Kim