Patents by Inventor Yong Jo Kim
Yong Jo 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: 11803073Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: June 6, 2022Date of Patent: October 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Publication number: 20220308380Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: June 6, 2022Publication date: September 29, 2022Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 11353730Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: December 17, 2020Date of Patent: June 7, 2022Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Publication number: 20210103172Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: December 17, 2020Publication date: April 8, 2021Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 10871667Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: October 28, 2019Date of Patent: December 22, 2020Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Publication number: 20200057331Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 10459261Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: November 14, 2016Date of Patent: October 29, 2019Assignee: Samsung Display Co., Ltd.Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Patent number: 9846339Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.Type: GrantFiled: June 15, 2016Date of Patent: December 19, 2017Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Tae Ho Kang, Hae Ryeong Park, Yong Jo Kim, Dong Il Yoo, Tae Kyung Yim, Nak Cho Choi
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Publication number: 20170123280Abstract: A liquid crystal display includes a substrate on which a pixel region is defined, a first sub-pixel electrode in the pixel region on the substrate, an insulating layer on the first sub-pixel electrode, a second sub-pixel electrode in the pixel region on the insulating layer, a floating electrode in the pixel region on the insulating layer and disconnected from the second sub-pixel electrode, a liquid crystal layer on the second sub-pixel electrode and the floating electrode, and a common electrode disposed on the liquid crystal layer. The floating electrode includes first to fourth floating electrodes in first to fourth quadrants of the pixel region, respectively. The first to fourth floating electrodes are separated from one another, and the first sub-pixel electrode partially overlaps the second sub-pixel electrode and the first to fourth floating electrodes.Type: ApplicationFiled: June 15, 2016Publication date: May 4, 2017Inventors: Tae Ho KANG, Hae Ryeong PARK, Yong Jo KIM, Dong Il YOO, Tae Kyung YIM, Nak Cho CHOI
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Publication number: 20170059911Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: November 14, 2016Publication date: March 2, 2017Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 9494811Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: January 29, 2014Date of Patent: November 15, 2016Assignee: Samsung Display Co., Ltd.Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Patent number: 9490788Abstract: A semiconductor device includes a first variable delay circuit that delays inputted multiphase signals according to a delay control signal, a selection circuit that selects and outputs two signals of signals output from the first variable delay circuit, a second variable delay circuit that delays one of the two signals according to the delay control signal, a phase comparison circuit that compares a phase of a signal outputted by the second variable delay circuit with a phase of the other of the two signals, a filter that updates the delay control signal according to a signal outputted by the phase comparison circuit, and a delay control signal selection circuit that provides the delay control signal to the first variable delay circuit or the second variable delay circuit.Type: GrantFiled: September 16, 2015Date of Patent: November 8, 2016Assignees: SK HYNIX INC., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Yong-Jo Kim, SeongHwan Cho
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Publication number: 20160149563Abstract: A semiconductor device includes a first variable delay circuit that delays inputted multiphase signals according to a delay control signal, a selection circuit that selects and outputs two signals of signals output from the first variable delay circuit, a second variable delay circuit that delays one of the two signals according to the delay control signal, a phase comparison circuit that compares a phase of a signal outputted by the second variable delay circuit with a phase of the other of the two signals, a filter that updates the delay control signal according to a signal outputted by the phase comparison circuit, and a delay control signal selection circuit that provides the delay control signal to the first variable delay circuit or the second variable delay circuit.Type: ApplicationFiled: September 16, 2015Publication date: May 26, 2016Inventors: Yong-Jo KIM, SeongHwan CHO
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Patent number: 8791969Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.Type: GrantFiled: June 10, 2011Date of Patent: July 29, 2014Assignee: Samsung Display Co., Ltd.Inventors: Yong-Jo Kim, Yoon-Jang Kim, Yoon-Sung Um, Jong-Hee Na, Young-Min Choi
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Patent number: 8773626Abstract: A display substrate includes a gate line, a data line and a pixel electrode. The gate line is extended in a first direction on a base substrate. The data line is extended in a second direction crossing to the first direction. The pixel electrode is disposed on a pixel area of the base substrate. The pixel electrode includes a first sub-electrode and a second sub-electrode spaced apart by an opening portion, and receives a voltage having a same polarity. The opening portion includes a straight line portion extended in the first direction, a diagonal line portion extended in a third direction crossing the first and second directions, and a protrusion portion disposed in a length direction of the straight line portion at a portion of the pixel electrode where the straight line portion and the diagonal line portion meet.Type: GrantFiled: October 6, 2010Date of Patent: July 8, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sung-Hoon Kim, Sang-Yong No, Young-Je Cho, Kook-Hyun Choi, Yong-Jo Kim, Hyo-Seop Kim
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Publication number: 20140146254Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: ApplicationFiled: January 29, 2014Publication date: May 29, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: KOOK-HYUN CHOI, HYO-TAEK LIM, DONG-HO SHIN, YOUNG-JE CHO, YONG-JO KIM, SANG-YONG NO, SUNG-HOON KIM, HYO-SEOP KIM
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Patent number: 8643812Abstract: A display substrate has first and second conductive layers separated from one another by an insulation layer. The first and second conductive layers are used to integrally form on the display substrate, pixel units in a relatively central display area of the substrate and integrated gate driving circuitry as well as associated wirings thereof in one or more peripheral areas. The first and second conductive layers are covered by a first protection layer made of a first electrically insulative material. A second and supplementing protection layer is provided on top of the first protection layer. The supplementing protection layer (buffer layer) is formed of a material different from that of the first protection layer so as to provide supplemental resistance against corrosive chemical agents and supplemental resistance against formation of cracks.Type: GrantFiled: July 1, 2010Date of Patent: February 4, 2014Assignee: Samsung Display Co., Ltd.Inventors: Kook-Hyun Choi, Hyo-Taek Lim, Dong-Ho Shin, Young-Je Cho, Yong-Jo Kim, Sang-Yong No, Sung-Hoon Kim, Hyo-Seop Kim
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Patent number: 8390769Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a substrate, a gate line formed on the substrate, a data line intersecting the gate line and including a source electrode, a drain electrode facing the source electrode, a passivation layer formed on the data line and the drain electrode, a color filter formed on the passivation layer, a cover formed on the color filter and having a contact hole exposing the drain electrode, and a pixel electrode formed on the cover and connected to the drain electrode through the contact hole, wherein the cover includes a dummy hole exposing the color filter.Type: GrantFiled: July 23, 2010Date of Patent: March 5, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-Je Cho, Yoon-Jang Kim, Yun-Jung Cho, Kweon-Sam Hong, Yong-Jo Kim, Kee-Bum Park, Seon-Kyoon Mok, Woo-Jung Shin, Dong-Ho Shin, Kook-Hyun Choi
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Patent number: 8363186Abstract: A thin film transistor includes: a substrate; a thin film transistor formed on the substrate; a first color filter and a second color filter formed on the thin film transistor and each having a through hole; a capping layer formed on the first color filter and the second color filter; and a pixel electrode formed on the capping layer and connected to the thin film transistor through the through hole, wherein the capping layer formed on the first color filter has a first opening exposing the through hole of the first color filter, the size of the first opening is larger than the size of the through hole, the capping layer formed on the second color filter has a second opening disposed inside the through hole of the second color filter, and the size of the second opening is smaller than the size of the through hole. Accordingly, the capping layer completely covers the green color filter which prevents damage to the green color filter in a dry etching process, and also prevents changes of a color coordinate.Type: GrantFiled: May 19, 2010Date of Patent: January 29, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jin-Seuk Kim, Young-Je Cho, Chul Huh, Yong-Jo Kim, Sung-Hoon Kim, Yui-Ku Lee, Chang-Soon Jang
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Publication number: 20120033001Abstract: A display device includes a first display panel facing a second display panel with a liquid crystal layer between them. The first display panel has a first gate line, a second gate line spaced apart from the first gate line, a first and second storage lines both spaced apart from the first gate line, first and second switching elements controlled by a first gate signal applied through the first gate line, a first sub-pixel electrode connected to the first switching element, a second sub-pixel electrode connected to the second switching element, a third switching element controlled by a second gate signal applied through the second gate line, and a coupling electrode connected to the third switching element and having a portion overlapping the second storage line. Different voltages are applied to the first storage line and the second storage line.Type: ApplicationFiled: June 10, 2011Publication date: February 9, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yong-Jo KIM, Yoon-Jang KIM, Yoon-Sung UM, Jong-Hee NA, Young-Min CHOI