Patents by Inventor SuWan WOO
SuWan WOO 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: 20240262209Abstract: The present disclosure relates to a failure detection method for detecting a failure of a current sensor in a converter. A failure detection method of a current sensor in a converter includes recognizing a voltage value of a high voltage battery associated with a vehicle, calculating a reference current value of the converter associated with the high voltage battery based on the recognized voltage value of the high voltage battery and a resistance value of a pre-charge relay, obtaining a sensing current value from the current sensor in the converter, and detecting whether the current sensor in the converter fails using the calculated reference current value and a sensing current value obtained from the current sensor.Type: ApplicationFiled: May 10, 2023Publication date: August 8, 2024Inventors: Hyeonghyeon HAN, Suwan Woo
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Patent number: 11747668Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: GrantFiled: August 12, 2022Date of Patent: September 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Publication number: 20220390794Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: ApplicationFiled: August 12, 2022Publication date: December 8, 2022Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 11428979Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: GrantFiled: May 24, 2021Date of Patent: August 30, 2022Assignee: Samsung Display Co., Ltd.Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Publication number: 20210278722Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 11016330Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: GrantFiled: April 6, 2020Date of Patent: May 25, 2021Assignee: Samsung Display Co., Ltd.Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 11004872Abstract: A display substrate and a method of manufacturing a display substrate, the display substrate including a base substrate; a gate electrode on the base substrate; an insulation layer on the gate electrode; a source electrode and a drain electrode on the insulation layer and overlapping the gate electrode; and a pixel electrode electrically connected to the drain electrode, wherein a cavity is formed between the gate electrode and the insulation layer.Type: GrantFiled: April 18, 2017Date of Patent: May 11, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Nakcho Choi, Suwan Woo, Yeogeon Yoon, Dae-Young Lee, Joonggun Chong, Jonghak Hwang
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Publication number: 20200301179Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.Type: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Inventors: Wan-Soon IM, MinWook PARK, SuWan WOO, Eun-Kil PARK, Jeongman Son, Changil TAE, Kee-Bum PARK, Kyung-Bae KIM, JE HYEONG PARK, JOOHWAN PARK, YU DEOK SEO, Seungho YANG, SEJOON OH, HEEHWAN LEE
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Patent number: 10725331Abstract: A display device includes: a backlight unit configured to emit light; a first substrate positioned in a path of a light emitted from the backlight unit and including a first pixel and a second pixel displaying different colors from each other; a second substrate facing the first substrate; a light amount control layer positioned between the first substrate and the second substrate; a gate line disposed on the first substrate and extending in a first direction; a storage line disposed on the substrate and spaced apart from the gate line; and a data line disposed on the first substrate and extending in a second direction intersecting the first direction. The first pixel includes a first thin film transistor, a first pixel electrode, and a first light conversion unit. The second pixel electrode includes a second thin film transistor, and a second light conversion unit.Type: GrantFiled: November 3, 2017Date of Patent: July 28, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yeogeon Yoon, Kyungbae Kim, Youngmin Kim, Ilgon Kim, Jangil Kim, Cheolwoo Park, Suwan Woo, Seontae Yoon
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Publication number: 20200233260Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 10712596Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.Type: GrantFiled: May 28, 2014Date of Patent: July 14, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wan-Soon Im, MinWook Park, SuWan Woo, Eun-Kil Park, Jeongman Son, Changil Tae, Kee-Bum Park, Kyung-Bae Kim, Je Hyeong Park, Joohwan Park, Yu Deok Seo, Seungho Yang, Sejoon Oh, Heehwan Lee
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Patent number: 10663806Abstract: A liquid crystal display includes a display substrate having pixel electrodes and a curvature along a first direction, an opposite substrate coupled to the display substrate and curved together with the display substrate, and a liquid crystal layer interposed between the display substrate and the opposite substrate. Each pixel electrode comprises a plurality of domains successively arranged along a second direction substantially perpendicular to the first direction, and further comprises branch electrodes positioned within each domain to be inclined with respect to the first and second directions, the branch electrodes of two domains adjacent to each other in the second direction being arranged in alternating manner.Type: GrantFiled: June 28, 2018Date of Patent: May 26, 2020Assignee: Samsung Display Co., Ltd.Inventors: Changil Tae, Suwan Woo
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Patent number: 10649269Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: GrantFiled: January 25, 2019Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 10534224Abstract: A display substrate may include a base substrate having a plurality of pixel areas; and a pixel electrode in the pixel area. The pixel electrode may include a bump portion defining a plurality of domains and at least one slit extending along an edge of the pixel electrode in at least one domain.Type: GrantFiled: December 4, 2018Date of Patent: January 14, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taekyung Yim, Suwan Woo, Keunwoo Park, Nakcho Choi
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Patent number: 10394089Abstract: A display substrate includes a base substrate, a switching device, and a pixel electrode including a first sub pixel electrode and a second sub pixel electrode. The first sub pixel electrode includes an internal electrode and an external electrode. The internal electrode includes a support electrode portion extending in a second direction, and a horizontal internal branch electrode portion extending in a first direction. The external electrode includes a horizontal external branch electrode portion disposed outside the internal electrode and extending in the first direction, and a vertical external branch electrode portion disposed outside the internal electrode and extending in the second direction. The second sub pixel electrode is adjacent to the first sub pixel electrode and has a shape symmetrical to the first sub pixel electrode.Type: GrantFiled: June 5, 2017Date of Patent: August 27, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taekyung Yim, Jang-Il Kim, Hoon Kim, Keunwoo Park, Dong-Chul Shin, Kichul Shin, Suwan Woo
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Publication number: 20190227372Abstract: A curved display device curved in a first direction includes: a first substrate including a plurality of signal lines, an insulating layer which covers the signal lines, a pixel electrode disposed on the insulating layer, and a shielding electrode electrically insulated from the pixel electrode and disposed along a signal line, which extends substantially in a second direction crossing the first direction, among the signal lines; a second substrate disposed opposite to the first substrate and including a common electrode; and a light control layer interposed between the first substrate and the second substrate.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: SuWan WOO, Wan-Soon IM, Kee-Bum PARK, Younggoo SONG, Heehwan LEE, Yongwoo HYUNG
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Publication number: 20190171061Abstract: A color substrate and a display device including the same. The color substrate includes: a substrate including first and second pixel regions spaced apart from each other, and a light shielding region between the first and second pixel regions; a first color conversion layer over the first pixel region and configured to convert incident light into first color light; a second color conversion layer over the second pixel region and configured to convert the incident light into second color light; and a retroreflective layer over the light shielding region and configured to retroreflect incident light through the first and second color conversion layer.Type: ApplicationFiled: January 25, 2019Publication date: June 6, 2019Inventors: Heekeun Lee, Jangil Kim, Keunwoo Park, Suwan Woo, Yeogeon Yoon
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Patent number: 10303020Abstract: A display device includes: a base substrate comprising a first light blocking area extending in a first direction, a second light blocking area extending in a second direction intersecting the first direction and a light transmitting area defined by the first light blocking area and the second light blocking area; a gate line on the base substrate at the first light blocking area; a data line on the base substrate at the second light blocking area; a thin film transistor connected to the gate line and the data line; a protective layer on the thin film transistor; a black matrix on the protective layer at at least one of the first light blocking area and the second light blocking area; and a pixel electrode connected to the thin film transistor through a contact hole defined in the protective layer and the black matrix.Type: GrantFiled: June 15, 2017Date of Patent: May 28, 2019Assignee: Samsung Display Co., Ltd.Inventors: Jangil Kim, Suwan Woo, Keunwoo Park, Yeogeon Yoon, Taekyung Yim, Jonghak Hwang
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Patent number: 10295858Abstract: A curved display device curved in a first direction includes: a first substrate including a plurality of signal lines, an insulating layer which covers the signal lines, a pixel electrode disposed on the insulating layer, and a shielding electrode electrically insulated from the pixel electrode and disposed along a signal line, which extends substantially in a second direction crossing the first direction, among the signal lines; a second substrate disposed opposite to the first substrate and including a common electrode; and a light control layer interposed between the first substrate and the second substrate.Type: GrantFiled: August 24, 2017Date of Patent: May 21, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: SuWan Woo, Wan-Soon Im, Kee-Bum Park, Younggoo Song, Heehwan Lee, Yongwoo Hyung
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Publication number: 20190107756Abstract: A display substrate may include a base substrate having a plurality of pixel areas; and a pixel electrode in the pixel area. The pixel electrode may include a bump portion defining a plurality of domains and at least one slit extending along an edge of the pixel electrode in at least one domain.Type: ApplicationFiled: December 4, 2018Publication date: April 11, 2019Inventors: Taekyung YIM, Suwan WOO, Keunwoo PARK, Nakcho CHOI