Patents by Inventor Seong-Jin Jeong
Seong-Jin Jeong 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: 20250098379Abstract: A display device includes a substrate, a light emitting device disposed on the substrate, a first layer disposed on the light emitting device, a high refractive index layer disposed on the first layer and overlapping the light emitting device, and a low refractive index layer disposed on the first layer and having a lower refractive index than the high refractive index layer, wherein a side surface of the high refractive index layer and a side surface of the low refractive index layer are in contact with each other, and to form an inclined surface, and an angle of the inclined surface is in a range of about 45 to about 80 degrees.Type: ApplicationFiled: June 6, 2024Publication date: March 20, 2025Applicant: Samsung Display Co., LTD.Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
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Patent number: 12245456Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.Type: GrantFiled: March 15, 2022Date of Patent: March 4, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seong Jin Jeong, Jin Sook Bang, Sang Hoon Yim, Eun Jeong Hong, Kwan Hee Lee
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Publication number: 20240237500Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.Type: ApplicationFiled: August 30, 2023Publication date: July 11, 2024Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
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Publication number: 20240164170Abstract: A display device includes a plurality of pixels including a first pixel representing green, where each of the pixels includes a light emitting element including an anode, a light emitting layer, and a cathode. The display device further includes a control layer disposed in a direction in which the light emitting element emits light and overlapping the first pixel, and a transmittance of the control layer at a first wavelength band, within a green wavelength band, is lower than a transmittance at a remaining visible light region such that a decrease in a front luminance spectrum by the control layer is greater than a decrease in a side luminance spectrum by the control layer.Type: ApplicationFiled: October 20, 2023Publication date: May 16, 2024Inventors: Jin Sook BANG, Ilhoo PARK, Jinouk SONG, Sang Hoon YIM, Seong Jin JEONG
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Publication number: 20240138242Abstract: A display device according to an embodiment includes: a substrate; a transistor on the substrate; a pixel electrode electrically connected to the transistor; a pixel defining layer on the pixel electrode and having a first opening overlapping the pixel electrode; an emission layer on the pixel electrode; a common electrode on the pixel definition layer and the emission layer; an encapsulation layer on the common electrode; a light extraction pattern on the encapsulation layer and having a first refractive index; and a reflection control layer covering the light extraction pattern and having a second refractive index different from the first refractive index.Type: ApplicationFiled: August 29, 2023Publication date: April 25, 2024Inventors: Jinouk SONG, Ilhoo PARK, Jin Sook BANG, Sang Hoon YIM, Seong Jin JEONG
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Publication number: 20230027280Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.Type: ApplicationFiled: August 3, 2022Publication date: January 26, 2023Applicant: Samsung Display Co., LTD.Inventors: Seong Jin JEONG, Jin Sook BANG, Sang Hoon YIM, Eun Jeong HONG, Kwan Hee LEE
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Publication number: 20230028269Abstract: A display device includes a first light emitting element, a second light emitting element, and a third light emitting element that are disposed on a substrate and emitting light of different colors, respectively; a first insulation layer disposed on the first light emitting element, the second light emitting element, and the third light emitting element, and including at least one opening; and a second insulation layer disposed on the first insulation layer, and disposed in the at least one opening, wherein a refractive index of the second insulation layer is higher than a refractive index of the first insulation layer, and the at least one opening overlaps at least one of the first light emitting element, the second light emitting element, and the third light emitting element in a plan view, and does not overlap at least another one in a plan view.Type: ApplicationFiled: March 15, 2022Publication date: January 26, 2023Applicant: Samsung Display Co., LTD.Inventors: Seong Jin JEONG, Jin Sook BANG, Sang Hoon YIM, Eun Jeong HONG, Kwan Hee LEE
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Patent number: 9831438Abstract: A compound, an organic light-emitting device, and a flat display apparatus, the compound being represented by Formula 1, below:Type: GrantFiled: December 9, 2014Date of Patent: November 28, 2017Assignees: SAMSUNG DISPLAY CO., LTD., SEOUL NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY R & DB FOUNDATIONInventors: Se-Hun Kim, Seong-Jin Jeong, Jong-In Hong, Mi-Kyung Kim, Chang-Woong Chu
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Patent number: 9673400Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.Type: GrantFiled: June 18, 2014Date of Patent: June 6, 2017Assignees: Samsung Display Co., Ltd., SNU R&DB FoundationInventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong
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Patent number: 9634257Abstract: A heterocyclic compound of Formula 1 below and an organic light-emitting device including the same are provided. X1 to X4, L1, L2, n, m, and Ar1 to, Ar4 in Formula 1 are defined as in the specification.Type: GrantFiled: March 24, 2014Date of Patent: April 25, 2017Assignees: Samsung Display Co., Ltd., Seoul National University R&DB FoundationInventors: Se-Hun Kim, Mi-Kyung Kim, Jong-In Hong, Dong-Hyun Kim, Seong-Jin Jeong, Hwan-Hee Cho, Chang-Woong Chu
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Publication number: 20160020400Abstract: A compound, an organic light-emitting device, and a flat display apparatus, the compound being represented by Formula 1, below:Type: ApplicationFiled: December 9, 2014Publication date: January 21, 2016Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Se-Hun KIM, Seong-Jin JEONG, Jong-In HONG, Mi-Kyung KIM, Chang-Woong CHU
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Publication number: 20150034917Abstract: A heterocyclic compound of Formula 1 below and an organic light-emitting device including the same are provided. X1 to X4, L1, L2, n, m, and Ar1 to, Ar4 in Formula 1 are defined as in the specification.Type: ApplicationFiled: March 24, 2014Publication date: February 5, 2015Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, SAMSUNG DISPLAY CO., LTD.Inventors: Se-Hun Kim, Mi-Kyung Kim, Jong-In Hong, Dong-Hyun Kim, Seong-Jin Jeong, Hwan-Hee Cho, Chang-Woong Chu
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Publication number: 20140374717Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.Type: ApplicationFiled: June 18, 2014Publication date: December 25, 2014Inventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong