Patents by Inventor Cheho LEE
Cheho LEE 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: 11258042Abstract: A display apparatus is provided. In the display apparatus, because an inorganic encapsulation layer of a thin film encapsulation layer is not separated from another layer, a lifespan of the display apparatus may be increased.Type: GrantFiled: February 11, 2020Date of Patent: February 22, 2022Assignee: Samsung Display Co., Ltd.Inventors: Jaehyun Kim, Daesang Yun, Cheho Lee
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Patent number: 11217772Abstract: A display apparatus including a base layer including a display region and a non-display region; display elements on the display region and including a first electrode, a light emitting layer, and a second electrode on the light emitting layer; and an upper layer on the display elements, wherein the upper layer includes a first organic layer contacting the second electrode; a first inorganic layer contacting the first organic layer; a second organic layer contacting the first inorganic layer; and a second inorganic layer contacting the second organic layer, wherein the first inorganic layer includes a first and second area, the first area having a refractive index of about 1.60 to about 1.65 with respect to a wavelength of about 633 nm, wherein the first area has a uniform thickness, and wherein a thickness of the second area decreases as a distance from the display region increases.Type: GrantFiled: July 23, 2019Date of Patent: January 4, 2022Assignee: Samsung Display Co., Ltd.Inventors: Soyeon Jeong, Jaehyun Kim, Daesang Yun, Cheho Lee
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Publication number: 20200335722Abstract: A display apparatus is provided. In the display apparatus, because an inorganic encapsulation layer of a thin film encapsulation layer is not separated from another layer, a lifespan of the display apparatus may be increased.Type: ApplicationFiled: February 11, 2020Publication date: October 22, 2020Inventors: Jaehyun KIM, Daesang YUN, Cheho LEE
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Patent number: 10658616Abstract: A display device may include an organic light emitting device and an encapsulation member provided on the organic light emitting device to seal the organic light emitting device. The encapsulation member may include a lower encapsulation layer, which is provided on the organic light emitting device and includes oxynitride and nitride, an organic layer provided on the lower encapsulation layer, and an upper encapsulation layer provided on the organic layer. A content of oxynitride in the lower encapsulation layer may increase with decreasing distance from the organic layer.Type: GrantFiled: October 2, 2018Date of Patent: May 19, 2020Assignee: Samsung Display Co., Ltd.Inventors: Cheho Lee, Soyeon Jeong, Shogo Nishizaki, Daesang Yun
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Publication number: 20200106050Abstract: A display apparatus including a base layer including a display region and a non-display region; display elements on the display region and including a first electrode, a light emitting layer, and a second electrode on the light emitting layer; and an upper layer on the display elements, wherein the upper layer includes a first organic layer contacting the second electrode; a first inorganic layer contacting the first organic layer; a second organic layer contacting the first inorganic layer; and a second inorganic layer contacting the second organic layer, wherein the first inorganic layer includes a first and second area, the first area having a refractive index of about 1.60 to about 1.65 with respect to a wavelength of about 633 nm, wherein the first area has a uniform thickness, and wherein a thickness of the second area decreases as a distance from the display region increases.Type: ApplicationFiled: July 23, 2019Publication date: April 2, 2020Inventors: Soyeon JEONG, Jaehyun KIM, Daesang YUN, Cheho LEE
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Publication number: 20190123301Abstract: A display device may include an organic light emitting device and an encapsulation member provided on the organic light emitting device to seal the organic light emitting device. The encapsulation member may include a lower encapsulation layer, which is provided on the organic light emitting device and includes oxynitride and nitride, an organic layer provided on the lower encapsulation layer, and an upper encapsulation layer provided on the organic layer. A content of oxynitride in the lower encapsulation layer may increase with decreasing distance from the organic layer.Type: ApplicationFiled: October 2, 2018Publication date: April 25, 2019Inventors: Cheho Lee, Soyeon Jeong, Shogo Nishizaki, Daesang Yun
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Patent number: 9966567Abstract: An organic light-emitting diode display includes an organic light-emitting display device including a first electrode, an intermediate layer including an organic emission layer, and a second electrode; a first inorganic encapsulation layer on the second electrode; a second inorganic encapsulation layer on the first inorganic encapsulation layer; and an organic encapsulation layer on the second inorganic encapsulation layer. A refractive index of the first inorganic encapsulation layer is higher than a refractive index of the second inorganic encapsulation layer. The first inorganic encapsulation layer has an extinction coefficient of 0.02 to 0.07 and a refractive index of 2.1 to 2.3 at a blue wavelength.Type: GrantFiled: April 6, 2017Date of Patent: May 8, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jaehyun Kim, Yongjun Park, Cheho Lee
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Patent number: 9905800Abstract: An organic light-emitting display apparatus includes an organic light-emitting device including a first electrode, an intermediate layer including a light-emitting layer, and a second electrode; an organic barrier layer on the second electrode of the organic light-emitting device and having a first side facing the organic light-emitting device and a second side facing in an opposite direction from the first side; a buffer layer contacting the second side of the organic barrier layer; and a first inorganic barrier layer on the second side of the organic barrier layer with the buffer layer therebetween, wherein a water vapor transmission rate of the buffer layer is greater than 10?2 g/(cm2·day).Type: GrantFiled: September 14, 2015Date of Patent: February 27, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jaehyun Kim, Shogo Nishizaki, Cheho Lee
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Publication number: 20170213999Abstract: An organic light-emitting diode display includes an organic light-emitting display device including a first electrode, an intermediate layer including an organic emission layer, and a second electrode; a first inorganic encapsulation layer on the second electrode; a second inorganic encapsulation layer on the first inorganic encapsulation layer; and an organic encapsulation layer on the second inorganic encapsulation layer. A refractive index of the first inorganic encapsulation layer is higher than a refractive index of the second inorganic encapsulation layer. The first inorganic encapsulation layer has an extinction coefficient of 0.02 to 0.07 and a refractive index of 2.1 to 2.3 at a blue wavelength.Type: ApplicationFiled: April 6, 2017Publication date: July 27, 2017Inventors: Jaehyun KIM, Yongjun PARK, Cheho LEE
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Patent number: 9627647Abstract: An organic light-emitting diode display includes an organic light-emitting display device including a first electrode, an intermediate layer including an organic emission layer, and a second electrode; a first inorganic encapsulation layer on the second electrode; a second inorganic encapsulation layer on the first inorganic encapsulation layer; and an organic encapsulation layer on the second inorganic encapsulation layer. A refractive index of the first inorganic encapsulation layer is higher than a refractive index of the second inorganic encapsulation layer. The first inorganic encapsulation layer has an extinction coefficient of 0.02 to 0.07 and a refractive index of 2.1 to 2.3 at a blue wavelength.Type: GrantFiled: August 5, 2015Date of Patent: April 18, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jaehyun Kim, Yongjun Park, Cheho Lee
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Publication number: 20160260926Abstract: An organic light-emitting display apparatus includes an organic light-emitting device including a first electrode, an intermediate layer including a light-emitting layer, and a second electrode; an organic barrier layer on the second electrode of the organic light-emitting device and having a first side facing the organic light-emitting device and a second side facing in an opposite direction from the first side; a buffer layer contacting the second side of the organic barrier layer; and a first inorganic barrier layer on the second side of the organic barrier layer with the buffer layer therebetween, wherein a water vapor transmission rate of the buffer layer is greater than 10?2g/(cm?day).Type: ApplicationFiled: September 14, 2015Publication date: September 8, 2016Inventors: Jaehyun Kim, Shogo Nishizaki, Cheho Lee
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Patent number: 9412972Abstract: An organic light-emitting display apparatus, includes a substrate including display area and a non-display area; a display device in the display area on the substrate; and a thin film encapsulating layer that covers the display device and includes an encapsulating inorganic layer and an encapsulating organic layer, the encapsulating inorganic layer including a plurality of inorganic layers and the encapsulating organic layer including a plurality of organic layers, at least one organic layer among the plurality of organic layers including a plurality of holes, and the plurality of holes being filled with an inorganic layer on the at least one organic layer.Type: GrantFiled: February 23, 2015Date of Patent: August 9, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Changwoo Shim, Hyun Kim, Cheho Lee
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Publication number: 20160093828Abstract: An organic light-emitting diode display includes an organic light-emitting display device including a first electrode, an intermediate layer including an organic emission layer, and a second electrode; a first inorganic encapsulation layer on the second electrode; a second inorganic encapsulation layer on the first inorganic encapsulation layer; and an organic encapsulation layer on the second inorganic encapsulation layer. A refractive index of the first inorganic encapsulation layer is higher than a refractive index of the second inorganic encapsulation layer. The first inorganic encapsulation layer has an extinction coefficient of 0.02 to 0.07 and a refractive index of 2.1 to 2.3 at a blue wavelength.Type: ApplicationFiled: August 5, 2015Publication date: March 31, 2016Inventors: Jaehyun KIM, Yongjun PARK, Cheho LEE
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Publication number: 20160079564Abstract: An organic light-emitting display apparatus, includes a substrate including display area and a non-display area; a display device in the display area on the substrate; and a thin film encapsulating layer that covers the display device and includes an encapsulating inorganic layer and an encapsulating organic layer, the encapsulating inorganic layer including a plurality of inorganic layers and the encapsulating organic layer including a plurality of organic layers, at least one organic layer among the plurality of organic layers including a plurality of holes, and the plurality of holes being filled with an inorganic layer on the at least one organic layer.Type: ApplicationFiled: February 23, 2015Publication date: March 17, 2016Inventors: Changwoo SHIM, Hyun KIM, Cheho LEE