Patents by Inventor Joon-Hoo Choi
Joon-Hoo Choi 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: 20230189568Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: ApplicationFiled: February 7, 2023Publication date: June 15, 2023Inventors: Woo Ho JEONG, SE MYUNG KWON, YOON HO KIM, SEOK JE SEONG, JOON HOO CHOI
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Patent number: 11659750Abstract: Provided is a tiled display. The tiled display includes: a first display device including a first display area including pixels, a second display device including a second display area including pixels adjacent to the first display area, and a seam between the first display area and the second display area. Each of the first display device and the second display device includes: a first base part supporting a respective one of the first display device and the second display device, a thin-film transistor layer on the first base part, the thin-film transistor layer including thin-film transistors included in the pixels and including connection lines in the seam, and bridge electrodes in the seam to couple between the connection lines of the first display device and the second display device.Type: GrantFiled: August 24, 2021Date of Patent: May 23, 2023Assignee: Samsung Display Co., Ltd.Inventors: Kwi Hyun Kim, Sang Yong No, Tae Ho Kang, Hwa Rang Lee, Joon Hoo Choi, Ji Yeon Choi
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Patent number: 11600678Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: GrantFiled: May 4, 2021Date of Patent: March 7, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woo Ho Jeong, Se Myung Kwon, Yoon Ho Kim, Seok Je Seong, Joon Hoo Choi
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Publication number: 20220102476Abstract: Provided is a tiled display. The tiled display includes: a first display device including a first display area including pixels, a second display device including a second display area including pixels adjacent to the first display area, and a seam between the first display area and the second display area. Each of the first display device and the second display device includes: a first base part supporting a respective one of the first display device and the second display device, a thin-film transistor layer on the first base part, the thin-film transistor layer including thin-film transistors included in the pixels and including connection lines in the seam, and bridge electrodes in the seam to couple between the connection lines of the first display device and the second display device.Type: ApplicationFiled: August 24, 2021Publication date: March 31, 2022Inventors: Kwi Hyun KIM, Sang Yong NO, Tae Ho KANG, Hwa Rang LEE, Joon Hoo CHOI, Ji Yeon CHOI
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Publication number: 20220085264Abstract: A display device includes: a first substrate; a plurality of metal layers on the first substrate and separated from each other; a buffer layer on the metal layer; a semiconductor layer on the buffer layer; a gate conductive layer on the semiconductor layer; a data conductive layer connected to the semiconductor layer; and a light-emitting element connected to the data conductive layer, wherein the metal layer includes a first portion partially overlapping the semiconductor layer in a third direction perpendicular to the surface of the first substrate, a second portion where the metal layer completely overlaps the semiconductor layer in the third direction, and a third portion where the metal layer does not overlap the semiconductor layer in the third direction.Type: ApplicationFiled: September 14, 2021Publication date: March 17, 2022Inventors: Seung Bo SHIM, Chang Woo KWON, Bong-Kyun KIM, Jin SueK KIM, Hyo Suk PARK, Ho Kil OH, Eung Gyu LEE, Wan-Soon IM, Joon Hoo CHOI
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Publication number: 20220069168Abstract: A display device includes: a substrate, a partition wall on the substrate and defining an opening, a first bank on the substrate and integrally formed with the partition wall, a first electrode on the partition wall and the first bank, and a light emitting element located in the opening and electrically connected to the first electrode.Type: ApplicationFiled: June 14, 2021Publication date: March 3, 2022Inventors: Hoon KIM, Myeong Su SO, Eun Je JANG, Jang Bog JU, Joon Hoo CHOI
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Publication number: 20210257430Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: ApplicationFiled: May 4, 2021Publication date: August 19, 2021Inventors: WOO HO JEONG, SE MYUNG KW0N, YOON HO KIM, SEOK JE SEONG, JOON HOO CHOI
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Patent number: 10998393Abstract: An organic fight-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: GrantFiled: March 18, 2020Date of Patent: May 4, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woo Ho Jeong, Se Myung Kwon, Yoon Ho Kim, Seok Je Seong, Joon Hoo Choi
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Publication number: 20200219954Abstract: An organic fight-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Woo Ho JEONG, Se Myung KWON, Yoon Ho KIM, Seok Je SEONG, Joon Hoo CHOI
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Patent number: 10622430Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: GrantFiled: February 7, 2019Date of Patent: April 14, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Woo Ho Jeong, Se Myung Kwon, Yoon Ho Kim, Seok Je Seong, Joon Hoo Choi
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Publication number: 20190378886Abstract: An organic light-emitting display device comprises a first thin-film transistor disposed on a substrate; and a second thin-film transistor disposed on the substrate and spaced apart from the first thin-film transistor. The first thin-film transistor comprises a first semiconductor layer, a first conductive layer disposed on the first semiconductor layer and that overlaps the first semiconductor layer, and a first insulating layer disposed between the first semiconductor layer and the first conductive layer. The second thin-film transistor comprises a second semiconductor layer, and a second conductive layer disposed on the second semiconductor layer and that overlaps the second semiconductor layer.Type: ApplicationFiled: February 7, 2019Publication date: December 12, 2019Inventors: Woo Ho Jeong, Se Myung Kwon, Yoon Ho Kim, Seok Je Seong, Joon Hoo Choi
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Patent number: 9761640Abstract: A display panel is disclosed. The display panel includes a substrate, a plurality of first unit pixel and a plurality of second unit pixel. The substrate includes a first region and a second region extending in a first direction. The plurality of first unit pixels is disposed in the first region of the substrate. The first unit pixel has a first area. The plurality of second unit pixel is disposed in the second region of the substrate. The second unit pixel has a second area which is smaller than the first area.Type: GrantFiled: August 12, 2016Date of Patent: September 12, 2017Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gyu Kim, Joon-Hoo Choi, Sung-Jae Moon
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Patent number: 9634072Abstract: An organic light-emitting display device includes: a substrate; an active layer on the substrate; a gate electrode insulated from the active layer and overlapping with the active layer; a source electrode including a first source electrode layer, connected to the active layer, and a second source electrode layer connected to the first source electrode layer, the second source electrode layer being larger than the first source electrode layer; a drain electrode including a first drain electrode layer connected to the active layer, and a second drain electrode layer connected to the first drain electrode layer, the second drain electrode layer being larger than the first drain electrode layer; a first electrode directly connected to a top surface of the source electrode or the drain electrode; an intermediate layer on the first electrode and including an organic emission layer; and a second electrode on the intermediate layer.Type: GrantFiled: March 13, 2013Date of Patent: April 25, 2017Assignee: Samsung Display Co., Ltd.Inventors: Chun-Gi You, Joon-Hoo Choi
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Patent number: 9601553Abstract: An organic light-emitting display having an improved aperture ratio, the organic light-emitting display including a rear electrode, an opposite electrode, and a pixel electrode between the rear electrode and the opposite electrode. Here, an insulating layer is interposed between the pixel electrode and the rear electrode, wherein the pixel electrode, the insulating layer, and the rear electrode are configured as a capacitor of the organic light-emitting display. In such a structure, as the capacitor is disposed in a light-emitting area where the pixel electrode exists, it is not necessary to provide an additional space for a capacitor, thus improving an aperture ratio of the display.Type: GrantFiled: September 23, 2011Date of Patent: March 21, 2017Assignee: Samsung Display Co., Ltd.Inventors: June-Woo Lee, Jong-Moo Huh, Joon-Hoo Choi
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Patent number: 9570534Abstract: An organic light emitting diode display includes: a substrate including a first and a second gate electrode formed over a first and a second region, respectively, a first and a second gate insulator formed on the first and the second gate electrode, respectively, a first and a second semiconductor layer formed on the first and the second gate insulator, respectively, the first semiconductor layer including a first channel region, the second semiconductor layer including a second channel region, an interlayer insulator formed over the substrate and over at least part of the first and second semiconductor layers, a first and a second etching stop layer formed over the first and second channel regions, respectively, and surrounded by the interlayer insulator, and a first and a second source electrode and a first and a second drain electrode contacting the first and the second semiconductor layer, respectively, through the interlayer insulator.Type: GrantFiled: November 19, 2015Date of Patent: February 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Kyu-Sik Cho, Won-Kyu Lee, Tae-Hoon Yang, Byoung-Kwon Choo, Sang-Ho Moon, Bo-Kyung Choi, Yong-Hwan Park, Joon-Hoo Choi, Min-Chul Shin, Yun-Gyu Lee
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Publication number: 20160351633Abstract: A display panel is disclosed. The display panel includes a substrate, a plurality of first unit pixel and a plurality of second unit pixel. The substrate includes a first region and a second region extending in a first direction. The plurality of first unit pixels is disposed in the first region of the substrate. The first unit pixel has a first area. The plurality of second unit pixel is disposed in the second region of the substrate. The second unit pixel has a second area which is smaller than the first area.Type: ApplicationFiled: August 12, 2016Publication date: December 1, 2016Inventors: Dong-Gyu KIM, Joon-Hoo CHOI, Sung-Jae MOON
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Patent number: 9466657Abstract: A display panel is disclosed. The display panel includes a substrate, a plurality of first unit pixel and a plurality of second unit pixel. The substrate includes a first region and a second region extending in a first direction. The plurality of first unit pixels is disposed in the first region of the substrate. The first unit pixel has a first area. The plurality of second unit pixel is disposed in the second region of the substrate. The second unit pixel has a second area which is smaller than the first area.Type: GrantFiled: April 3, 2015Date of Patent: October 11, 2016Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gyu Kim, Joon-Hoo Choi, Sung-Jae Moon
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Patent number: 9461263Abstract: The organic light emitting display apparatus includes a substrate; a buffer film on the substrate, the buffer film including a via hole, a thin film transistor (TFT) on the buffer film, the TFT including an active layer, a gate electrode, a source electrode, and a drain electrode, a first electrode electrically connected to one of the source electrode and the drain electrode and corresponding to the via hole; an intermediate layer on the first electrode, the intermediate layer including an organic emission layer, and a second electrode on the intermediate layer.Type: GrantFiled: November 14, 2012Date of Patent: October 4, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Chun-Gi You, Joon-Hoo Choi, Jong-Hyun Park, Kyung-Hoon Park, Jeong-Hwan Kim, Seong-Kweon Heo
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Patent number: 9349979Abstract: An organic light-emitting display device and a method of manufacturing the same. The organic light-emitting display device includes: a substrate; an active layer on the substrate; a gate electrode insulated from the active layer and overlapping the active layer; a source electrode including a first source electrode layer connected to the active layer and a second source electrode layer connected to the first source electrode layer and being larger than the first source electrode layer; a drain electrode including a first drain electrode layer connected to the active layer and a second drain electrode layer connected to the first drain electrode layer and being larger than the first drain electrode layer; a first electrode electrically connected to the source electrode or the drain electrode; an intermediate layer on the first electrode and including an organic emission layer; and a second electrode on the intermediate layer.Type: GrantFiled: March 15, 2013Date of Patent: May 24, 2016Assignee: Samsung Display Co., Ltd.Inventors: Chun-Gi You, Joon-Hoo Choi
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Publication number: 20160141353Abstract: A display panel is disclosed. The display panel includes a substrate, a plurality of first unit pixel and a plurality of second unit pixel. The substrate includes a first region and a second region extending in a first direction. The plurality of first unit pixels is disposed in the first region of the substrate. The first unit pixel has a first area. The plurality of second unit pixel is disposed in the second region of the substrate. The second unit pixel has a second area which is smaller than the first area.Type: ApplicationFiled: April 3, 2015Publication date: May 19, 2016Inventors: Dong-Gyu KIM, Joon-Hoo CHOI, Sung-Jae MOON