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公开(公告)号：US20230309335A1
公开(公告)日：2023-09-28
申请号：US18325713
申请日：2023-05-30
发明人： Juncheol BAE , Wonseok JANG , Wonjae JOO , Dongmok WHANG
IPC分类号： H10K50/818 , H10K50/852 , H10K50/856 , H10K71/00
CPC分类号： H10K50/818 , H10K50/852 , H10K50/856 , H10K71/00
摘要： Provided a light emitting device including a reflective layer including a plurality of nanostructures that are periodically two-dimensionally arranged, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein the planarization layer includes a conductive material that is transparent with respect to light emitted by the organic emission layer, and wherein the planarization layer is disposed on upper surfaces of the plurality of nanostructures such that an air gap is provided between adjacent nanostructures of the plurality of nanostructures.
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公开(公告)号：US20220020949A1
公开(公告)日：2022-01-20
申请号：US17245482
申请日：2021-04-30
发明人： Juncheol BAE , Wonseok JANG , Wonjae JOO , Dongmok WHANG
摘要： Provided a light emitting device including a reflective layer including a plurality of nanostructures that are periodically two-dimensionally arranged, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein the planarization layer includes a conductive material that is transparent with respect to light emitted by the organic emission layer, and wherein the planarization layer is disposed on upper surfaces of the plurality of nanostructures such that an air gap is provided between adjacent nanostructures of the plurality of nanostructures.
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公开(公告)号：US20210159460A1
公开(公告)日：2021-05-27
申请号：US17141799
申请日：2021-01-05
发明人： Wonjae JOO , Jisoo KYOUNG
摘要： A light-emitting device includes a metal reflection layer having a phase modulation surface, a color conversion layer provided on the phase modulation surface of the metal reflection layer, a first electrode provided on the color conversion layer, a hole injection and transport layer provided on the first electrode, a blue organic light-emitting layer provided on the hole injection and transport layer, an electron injection and transport layer provided on the blue organic light-emitting layer, and a second electrode provided on the electron injection and transport layer. The phase modulation surface of the metal reflection layer generates magnetic resonance with respect to incident light. The color conversion layer includes a photoluminescent material.
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公开(公告)号：US20200243800A1
公开(公告)日：2020-07-30
申请号：US16752067
申请日：2020-01-24
发明人： Wonjae JOO , Jisoo KYOUNG
摘要： A light-emitting device includes a metal reflection layer having a phase modulation surface, a color conversion layer provided on the phase modulation surface of the metal reflection layer, a first electrode provided on the color conversion layer, a hole injection and transport layer provided on the first electrode, a blue organic light-emitting layer provided on the hole injection and transport layer, an electron injection and transport layer provided on the blue organic light-emitting layer, and a second electrode provided on the electron injection and transport layer. The phase modulation surface of the metal reflection layer generates magnetic resonance with respect to incident light. The color conversion layer includes a photoluminescent material.
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公开(公告)号：US20190384074A1
公开(公告)日：2019-12-19
申请号：US16557347
申请日：2019-08-30
发明人： Wonjae JOO , Juhyung KANG , Soojin KIM , Mark L. BRONGERSMA , Shanhui FAN
摘要： A multi-stack graphene structure includes a graphene stack that includes graphene layers including amorphous graphene and thin film dielectric layers. The graphene layers include amorphous graphene. The graphene layers and the thin dielectric layers are alternately stacked on one another. The multi-stack graphene structure also includes an electric field former configured to apply an electric field to the graphene layers.
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公开(公告)号：US20190198817A1
公开(公告)日：2019-06-27
申请号：US16230527
申请日：2018-12-21
CPC分类号： H01L51/5265 , H01L27/3211 , H01L27/322 , H01L33/465 , H01L51/5012 , H01L51/5056 , H01L51/5072 , H01L51/5092 , H01L51/5206 , H01L51/5218 , H01L51/5221 , H01L51/5271 , H01L51/5275 , H01L2251/5315
摘要： A light emitting device including a micro cavity having a phase modulation surface and a display apparatus including the light emitting device are provided. The light emitting device includes a reflective layer including a phase modulation surface; a first electrode disposed on the phase modulation surface of the reflective layer; a light emitting structure disposed on the first electrode; and a second electrode disposed on the light emitting structure. The phase modulation surface may include a plurality of nano scale patterns that are regularly or irregularly arranged. The reflective layer and the second electrode may constitute the micro cavity having a resonance wavelength of the light emitting device.
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公开(公告)号：US20230247860A1
公开(公告)日：2023-08-03
申请号：US18132835
申请日：2023-04-10
发明人： Hyun KOO , Sunjin SONG , Wonjae JOO , Sunghyun HAN
IPC分类号： H10K50/86 , H10K50/17 , H10K50/852 , H10K50/856 , H10K59/35 , H10K59/80
CPC分类号： H10K50/865 , H10K50/171 , H10K50/852 , H10K50/856 , H10K59/351 , H10K59/876
摘要： Provide is a light emitting device including a reflective layer including a phase modulation surface, a planarization layer disposed on the reflective layer, a first electrode disposed on the planarization layer, an organic emission layer disposed on the first electrode and configured to emit visible light that includes light of a first wavelength and light of a second wavelength that is shorter than the first wavelength, and a second electrode disposed on the organic emission layer, wherein the reflective layer and the second electrode form a micro cavity configured to resonate the light of the first wavelength, and wherein the planarization layer includes a light absorber configured to absorb the light of the second wavelength.
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公开(公告)号：US20220037613A1
公开(公告)日：2022-02-03
申请号：US17165522
申请日：2021-02-02
申请人： SAMSUNG ELECTRONICS CO., LTD. , IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
发明人： Sunjin SONG , Seokho SONG , Wonjae JOO
摘要： Provided is a light-emitting device including a reflective layer including a plurality of nano-structures two-dimensionally disposed regularly and a low-refractive-index layer disposed adjacent to the plurality of nano-structures, a first electrode disposed on the reflective layer, an organic emission layer disposed on the first electrode, and a second electrode disposed on the organic emission layer, wherein each of the plurality of nano-structures includes a non-metallic material, and the low-refractive-index layer includes a dielectric material having a second refractive index lower than a first refractive index of the non-metallic material.
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公开(公告)号：US20220020828A1
公开(公告)日：2022-01-20
申请号：US17135546
申请日：2020-12-28
申请人： SAMSUNG ELECTRONICS CO., LTD. , IUCF-HYU ( INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
发明人： Sunghoon LEE , Seokho SONG , Wonjae JOO
摘要： A light emitting device includes a metal reflective layer including a phase modulation surface on which oblong phase modulation elements are formed; a first electrode provided on the metal reflective layer; an organic emission layer that is provided on the first electrode and that emits light; and a second electrode provided on the organic emission layer, wherein the oblong phase modulation elements are arranged to form a geometric phase lens.
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公开(公告)号：US20210288290A1
公开(公告)日：2021-09-16
申请号：US17154314
申请日：2021-01-21
发明人： Sunghoon LEE , Wonjae JOO , Sunjin SONG , Hyun KOO , Sunghyun HAN
摘要： A light emitting device includes a first electrode; a white organic light emission structure provided on the first electrode; a second electrode provided on the white organic light emission structure; and a reflective layer provided on an opposite side of the first electrode from the white organic light emission structure and including a first reflective region, a second reflective region, and a third reflective region having different heights from one another and forming different separation distances from the second electrode. A plurality of recesses may be provided in at least one of the first reflective region, the second reflective region, and the third reflective region on a surface of the reflective layer, and thus the color purity of the light emitting device may be improved.
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