Patents by Inventor Joung-Keun Park
Joung-Keun Park 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: 11552151Abstract: A display device includes: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion including all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: May 26, 2021Date of Patent: January 10, 2023Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
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Publication number: 20210280654Abstract: A display device includes: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion including all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: ApplicationFiled: May 26, 2021Publication date: September 9, 2021Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
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Patent number: 11024690Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: September 10, 2019Date of Patent: June 1, 2021Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
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Publication number: 20200006454Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: ApplicationFiled: September 10, 2019Publication date: January 2, 2020Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
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Patent number: 10418433Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: January 9, 2018Date of Patent: September 17, 2019Assignee: Samsung Display Co., Ltd.Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
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Publication number: 20180158891Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: ApplicationFiled: January 9, 2018Publication date: June 7, 2018Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
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Patent number: 9871086Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: September 26, 2016Date of Patent: January 16, 2018Assignee: Samsung Display Co., Ltd.Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
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Patent number: 9825110Abstract: An organic light emitting display device including a substrate, a semiconductor device disposed on the substrate, an insulation layer including an inclined structure disposed on the semiconductor device, a first electrode disposed on the insulation layer, a pixel defining layer disposed on the insulation layer and the first electrode, the pixel defining layer having a pixel opening exposing the first electrode positioned on the inclined structure, an organic light emitting layer disposed on the exposed first electrode and the pixel defining layer, and a second electrode disposed on the organic light emitting layer and the pixel defining layer. Light generated from the organic light emitting layer may be directed in different directions by the inclined structure.Type: GrantFiled: April 22, 2015Date of Patent: November 21, 2017Assignee: Samsung Display Co., Ltd.Inventor: Joung-Keun Park
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Patent number: 9660010Abstract: An organic light emitting display device includes a substrate, a first insulating layer, a extension of a drain electrode, a second insulating layer, a first electrode, an emission layer, and a second electrode. The substrate has a display region and a transparent region. The first insulating layer is disposed on the substrate. The extension of drain electrode is disposed on the first insulating layer. The second insulating layer is disposed on the extension of a drain electrode such that an edge portion of the extension of a drain electrode is free from overlap with the second insulating layer. The first electrode is disposed on the second insulating layer and in contact with the edge portion of the extension of a drain electrode. The emission layer is disposed on the first electrode. The second electrode is disposed on the emission layer.Type: GrantFiled: June 2, 2015Date of Patent: May 23, 2017Assignee: Samsung Display Co., Ltd.Inventors: Sang-Ho Park, Joung-Keun Park, Ki-Wan Ahn, Joo-Sun Yoon, Seung-Min Lee, Yong-Jae Jang
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Patent number: 9653609Abstract: A thin film transistor including a substrate; a first gate electrode on the substrate; a first insulating layer covering the substrate and the first gate electrode; a semiconductor on the first insulating layer and overlapping the first gate electrode; a second insulating layer covering the first insulating layer and the semiconductor; a second gate electrode on the second insulating layer and crossing the first gate electrode in plane; a third insulating layer covering the second gate electrode and the second insulating layer; a first source electrode and a first drain electrode on the third insulating layer and connected to the semiconductor; and a second source electrode and a second drain electrode on a same layer as the first source electrode and the first drain electrode and connected to the semiconductor.Type: GrantFiled: May 21, 2015Date of Patent: May 16, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee jun Yoo, Sang Ho Park, Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon, Seung Min Lee, Yong Jae Jang, Jae Hyuk Jang, Kwang Young Choi, Jung Hyun Kim
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Publication number: 20170012096Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: ApplicationFiled: September 26, 2016Publication date: January 12, 2017Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
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Patent number: 9455308Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: May 27, 2015Date of Patent: September 27, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon
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Publication number: 20160181333Abstract: An organic light emitting display device includes a substrate including a light-emitting region and a transparent region; a first transistor disposed in the light-emitting region, a second transistor disposed in the light-emitting region and disposed adjacent to the first transistor; a capacitor disposed in the light-emitting region, and disposed adjacent to the first transistor, and including a first capacitor electrode and a second capacitor electrode overlapping with the first capacitor electrode; and a pixel defining layer disposed on the first transistor, the second transistor and the capacitor, and including a first opening disposed in the light-emitting region and a second opening disposed in the transparent region, and including an opaque material.Type: ApplicationFiled: June 24, 2015Publication date: June 23, 2016Inventors: Sang-Ho PARK, Joung-Keun PARK, Byung-Tae RYU, Hee-Jun YOO, Ja-Eun LEE
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Publication number: 20160155858Abstract: A thin film transistor including a substrate; a first gate electrode on the substrate; a first insulating layer covering the substrate and the first gate electrode; a semiconductor on the first insulating layer and overlapping the first gate electrode; a second insulating layer covering the first insulating layer and the semiconductor; a second gate electrode on the second insulating layer and crossing the first gate electrode in plane; a third insulating layer covering the second gate electrode and the second insulating layer; a first source electrode and a first drain electrode on the third insulating layer and connected to the semiconductor; and a second source electrode and a second drain electrode on a same layer as the first source electrode and the first drain electrode and connected to the semiconductor.Type: ApplicationFiled: May 21, 2015Publication date: June 2, 2016Inventors: Hee jun YOO, Sang Ho PARK, Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON, Seung Min LEE, Yong Jae JANG, Jae Hyuk JANG, Kwang Young CHOI, Jung Hyun KIM
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Publication number: 20160087017Abstract: An organic light emitting display device including a substrate, a semiconductor device disposed on the substrate, an insulation layer including an inclined structure disposed on the semiconductor device, a first electrode disposed on the insulation layer, a pixel defining layer disposed on the insulation layer and the first electrode, the pixel defining layer having a pixel opening exposing the first electrode positioned on the inclined structure, an organic light emitting layer disposed on the exposed first electrode and the pixel defining layer, and a second electrode disposed on the organic light emitting layer and the pixel defining layer. Light generated from the organic light emitting layer may be directed in different directions by the inclined structure.Type: ApplicationFiled: April 22, 2015Publication date: March 24, 2016Inventor: Joung-Keun PARK
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Publication number: 20160035809Abstract: An organic light emitting display device includes a substrate, a first insulating layer, a power supply electrode, a second insulating layer, a first electrode, an emission layer, and a second electrode. The substrate has a display region and a transparent region. The first insulating layer is disposed on the substrate. The power supply electrode is disposed on the first insulating layer. The second insulating layer is disposed on the power supply electrode such that an edge portion of the power supply electrode is free from overlap with the second insulating layer. The first electrode is disposed on the second insulating layer and in contact with the edge portion of the power supply electrode. The emission layer is disposed on the first electrode. The second electrode is disposed on the emission layer.Type: ApplicationFiled: June 2, 2015Publication date: February 4, 2016Inventors: Sang-Ho PARK, Joung-Keun PARK, Ki-Wan AHN, Joo-Sun YOON, Seung-Min LEE, Yong-Jae JANG
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Patent number: 9202896Abstract: A method of manufacturing a thin film transistor (TFT), including forming an oxide semiconductor pattern including a first region, a second region and a third region on a substrate, directly plasma processing the first region and the second region of the oxide semiconductor pattern, forming an insulating layer on the substrate to cover the oxide semiconductor pattern, forming a gate electrode on the insulating layer to overlap the third region, and forming a source electrode and a drain electrode that are insulated from the gate electrode and that contact the first region, the second region being disposed between the first region and the third region.Type: GrantFiled: August 6, 2013Date of Patent: December 1, 2015Assignee: Samsung Display Co., Ltd.Inventors: Joo-Sun Yoon, Ki-Wan Ahn, Joung-Keun Park
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Publication number: 20150279908Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: ApplicationFiled: May 27, 2015Publication date: October 1, 2015Inventors: Joung-Keun PARK, Ki Wan AHN, Joo Sun YOON
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Patent number: 9099680Abstract: A display device and method of manufacturing the same, the display device having a substrate, a plurality of scattering patterns which are located on the substrate and comprise crystallized metal oxide, a first electrode which is located on the scattering patterns, an organic light-emitting layer which is located on the first electrode, and a second electrode which is located on the organic light-emitting layer.Type: GrantFiled: November 25, 2013Date of Patent: August 4, 2015Assignee: Samsung Display Co., Ltd.Inventors: Ki Wan Ahn, Joung Keun Park, Hee Jun Yoo, Joo Sun Yoon, Yong Jae Jang, Jae Hyuk Jang
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Patent number: 9059124Abstract: Provided is a display device, including: a substrate; signal lines including a gate line, a data line, and a driving voltage line that collectively define an outer boundary of a pixel area; a transistor connected to the signal line; a first electrode extending across the pixel area and formed on the signal line and the transistor, and connected to the transistor, the first electrode having a first portion overlying only the signal line and the transistor, and a second portion comprising all of the first electrode not included in the first portion; a pixel defining layer formed on only the first portion of the first electrode; an organic emission layer formed on substantially the entire second portion but not on the first portion; and a second electrode formed on the pixel defining layer and the organic emission layer.Type: GrantFiled: June 13, 2014Date of Patent: June 16, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Joung-Keun Park, Ki Wan Ahn, Joo Sun Yoon