Patents by Inventor Yoon-Hyeung Cho
Yoon-Hyeung Cho 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: 12096651Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: GrantFiled: August 21, 2023Date of Patent: September 17, 2024Assignee: Samsung Display Co., Ltd.Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Patent number: 11974455Abstract: A display device includes a substrate; a light-emitting element layer on the substrate; a first thin-film encapsulation layer that is on the light-emitting element layer, has an upper surface conforming an upper surface of the light-emitting element layer, and includes a recessed portion; a bank layer on the first thin-film encapsulation layer and having an opening overlapping the recessed portion; a wavelength conversion layer in the opening on the first thin-film encapsulation layer and at least partially in the recessed portion; a first inorganic layer on the bank layer and the wavelength conversion layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer.Type: GrantFiled: September 3, 2021Date of Patent: April 30, 2024Assignee: Samsung Display Co., Ltd.Inventors: Myung Chul Yeo, Yong Tack Kim, Eung Seok Park, Hee Wook Yoon, Yoon Hyeung Cho
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Patent number: 11925051Abstract: A display device includes: a first base having a display area; light-emitting elements on the first base; and an encapsulation layer over the light-emitting elements. The encapsulation layer includes: a first inorganic layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer. The first inorganic layer includes: a first buffer layer on the light-emitting elements; a first barrier layer on the first buffer layer; a first porous layer on the first barrier layer; a second barrier layer on the first porous layer; and a second buffer layer on the second barrier layer. A refractive index of the first buffer layer, the first barrier layer, and the first porous layer are different from one another, and the refractive index of the first porous layer is smaller than the refractive index of the first buffer layer and the first barrier layer.Type: GrantFiled: May 7, 2021Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yong Tack Kim, Eung Seok Park, Jae Hyuk Lee, Yoon Hyeung Cho, Dong Uk Choi
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Patent number: 11895861Abstract: A display device includes a base; a light emitting element on the base; a capping layer on the light emitting element; a thin-film encapsulation layer including a first inorganic layer on the capping layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer; and a wavelength conversion pattern on the thin-film encapsulation layer and overlapping the light emitting element, wherein the first inorganic layer includes two sub-inorganic layers having different refractive indices.Type: GrantFiled: April 2, 2021Date of Patent: February 6, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yong Tack Kim, Cheol Eon Park, Hak Joong Yong, Yun Kyu Lee, Yoon Hyeung Cho
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Publication number: 20230397454Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Patent number: 11818937Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.Type: GrantFiled: December 6, 2021Date of Patent: November 14, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yo Han Kim, Yong Tack Kim, Yoon Hyeung Cho, Jong Jin Park, Deok Chan Yoon, Yun Kyu Lee, Dong Uk Choi
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Patent number: 11778854Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: GrantFiled: October 14, 2022Date of Patent: October 3, 2023Assignee: Samsung Display Co., Ltd.Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Publication number: 20230060725Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: ApplicationFiled: October 14, 2022Publication date: March 2, 2023Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Publication number: 20230060021Abstract: A display device includes a first substrate; light-emitting elements disposed on the first substrate; an encapsulation film covering the light-emitting elements; a second substrate facing the first substrate; a first outermost film disposed on the second substrate to face the encapsulation film and including AOXNY (where A is a metal or non-metal element and X>Y); and a filler material disposed between the encapsulation film and the first outermost film and placed in direct contact with the first outermost film.Type: ApplicationFiled: October 17, 2022Publication date: February 23, 2023Inventors: Jung Hyun SON, Yo Han KIM, Yong Tack KIM, Byoung Duk LEE, Yoon Hyeung CHO
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Patent number: 11489021Abstract: A color conversion substrate includes a base including a first light transmitting region and a light shielding region around the first light transmitting region; a first color filter on the base in the first light transmitting region; a first wavelength conversion pattern in a first microcavity on the first color filter including a first wavelength shifter; and a light shielding member on the base and in the light shielding region. The first microcavity includes an open side, and the light shielding member directly contacts the first wavelength conversion pattern at the open side of the first microcavity.Type: GrantFiled: January 28, 2020Date of Patent: November 1, 2022Assignee: Samsung Display Co., Ltd.Inventors: Yoon Hyeung Cho, Yo Han Kim, Byoung Duk Lee, Yong Tack Kim, Jong Jin Park, Yun Ah Chung, Young Cheol Joo
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Patent number: 11489142Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: GrantFiled: December 30, 2021Date of Patent: November 1, 2022Assignee: Samsung Display Co., Ltd.Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Patent number: 11476311Abstract: A display device includes a first substrate; light-emitting elements disposed on the first substrate; an encapsulation film covering the light-emitting elements; a second substrate facing the first substrate; a first outermost film disposed on the second substrate to face the encapsulation film and including AOXNY (where A is a metal or non-metal element and X>Y); and a filler material disposed between the encapsulation film and the first outermost film and placed in direct contact with the first outermost film.Type: GrantFiled: October 7, 2019Date of Patent: October 18, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jung Hyun Son, Yo Han Kim, Yong Tack Kim, Byoung Duk Lee, Yoon Hyeung Cho
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Patent number: 11476439Abstract: A display device is provided. The display device includes: a first base; light-emitting elements on the first base and in the pixels, respectively; a second base facing the first base; and a light-blocking/supporting member between the light-emitting elements and the second base and at a boundary of each of the pixels, wherein the light-blocking/supporting member includes a light-blocking portion and a plurality of supporting portions in the light-blocking portion.Type: GrantFiled: January 22, 2021Date of Patent: October 18, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jung Hyun Son, Yo Han Kim, Yoon Hyeung Cho, Jeong Su Kim, Jong Jin Park, Hae Gu Yeo, Byoung Duk Lee
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Patent number: 11430968Abstract: A display device, including: a display panel including a light emitting element and an encapsulation layer covering the light emitting element; a color conversion panel overlapping the display panel, the color conversion panel including a color conversion element; a column spacer between the display panel and the color conversion panel; a filling layer filling a space between the display panel and the color conversion panel and surrounding the column spacer; and a buffer layer between the column spacer and the encapsulation layer of the display panel, the buffer layer including silicon oxycarbide (SiOxCy).Type: GrantFiled: August 21, 2020Date of Patent: August 30, 2022Assignee: Samsung Display Co., Ltd.Inventors: Yohan Kim, Jongjin Park, Won Min Yun, Seungju Lee, Sumin Jung, Young Cheol Joo, Yoon Hyeung Cho
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Publication number: 20220199948Abstract: A display device includes a substrate; a light-emitting element layer on the substrate; a first thin-film encapsulation layer that is on the light-emitting element layer, has an upper surface conforming an upper surface of the light-emitting element layer, and includes a recessed portion; a bank layer on the first thin-film encapsulation layer and having an opening overlapping the recessed portion; a wavelength conversion layer in the opening on the first thin-film encapsulation layer and at least partially in the recessed portion; a first inorganic layer on the bank layer and the wavelength conversion layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer.Type: ApplicationFiled: September 3, 2021Publication date: June 23, 2022Inventors: Myung Chul YEO, Yong Tack KIM, Eung Seok PARK, Hee Wook YOON, Yoon Hyeung CHO
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Patent number: 11362309Abstract: A display device comprises a first substrate comprising at least one light-emitting element; a second substrate facing the first substrate, wherein light emitted from the light-emitting element is to be incident on the second substrate; and a filling layer between the first substrate and the second substrate, wherein the filling layer comprises a filling pattern comprising a first pattern part on the first substrate and having a curve portion formed in at least a part thereof.Type: GrantFiled: January 27, 2020Date of Patent: June 14, 2022Assignee: Samsung Display Co., Ltd.Inventors: Yun Ah Chung, Yo Han Kim, Jong Woo Kim, Jong Jin Park, Byoung Duk Lee, Yoon Hyeung Cho, Young Cheol Joo, Jae Heung Ha
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Patent number: 11349094Abstract: An organic light emitting element includes a first electrode a second electrode that faces the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including quantum dots, and a hole transport layer between the first electrode and the emission layer. The quantum dots include at least one of a Group I-VI compound, a Group II-VI compound, and a Group III-VI compound. The hole transport layer includes at least one of a p-doped Group I-VI compound, a p-doped Group II-VI compound, and a p-doped Group III-VI compound.Type: GrantFiled: December 1, 2016Date of Patent: May 31, 2022Assignee: Samsung Display Co., Ltd.Inventors: Dong Chan Kim, Yi Su Kim, Byoung Duk Lee, Yoon Hyeung Cho
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Patent number: 11342525Abstract: A display device is provided. The display device includes a plurality of pixels; a first base; an organic light emitting element on the first base and in each of the pixels; a second base facing the first base; and a filling pattern layer between the organic light emitting elements and the second base, the filling pattern layer including a first pattern portion and a second pattern portion alternately arranged along a same direction in a plan view, wherein the first pattern portion is in each of the pixels, the second pattern portion is at a boundary of each of the pixels and contacts the first pattern portion, and a refractive index of the second pattern portion is smaller than that of the first pattern portion.Type: GrantFiled: September 25, 2019Date of Patent: May 24, 2022Assignee: Samsung Display Co., Ltd.Inventors: Yo Han Kim, Yoon Hyeung Cho, Yong Tack Kim, Jong Jin Park, Seung In Baek, Yun Ah Chung, Young Cheol Joo
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Publication number: 20220149332Abstract: Provided is an organic electroluminescent display device, including a substrate, an organic light-emitting device on the substrate, and an encapsulation layer formed on the organic light-emitting device and the substrate. The encapsulation layer includes an inorganic layer and a polymer organic layer alternatingly stacked with an intermediate layer formed of a first organic monomer between the inorganic layer and the polymer organic layer, and one surface of the intermediate layer is bonded to the inorganic layer through bonding sites on a surface of the inorganic layer and another surface of the intermediate layer is bonded to the organic layer by polymerization.Type: ApplicationFiled: December 30, 2021Publication date: May 12, 2022Inventors: Min-Ho Oh, Yoon-Hyeung Cho, Yong-Tak Kim, So-Young Lee, Jong-Woo Kim, Ji-Young Moon
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Publication number: 20220093691Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.Type: ApplicationFiled: December 6, 2021Publication date: March 24, 2022Inventors: Yo Han KIM, Yong Tack KIM, Yoon Hyeung CHO, Jong Jin PARK, Deok Chan YOON, Yun Kyu LEE, Dong Uk CHOI