-
公开(公告)号：US11276841B2
公开(公告)日：2022-03-15
申请号：US15514301
申请日：2015-09-18
发明人： Hong Yoon , Joo Young Lee , Hyun Hee Lee , Dong Hyun Kim , Min Seok Kim , Seo Hyun Kim , Kwang Je Woo
摘要： The present invention relates to a light extraction substrate for an organic light emitting element and, more specifically, to a light extraction substrate for an organic light emitting element that can enhance the light extraction efficiency of the organic light emitting element by optimizing a stack structure that can maximize scattering efficiency, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element and an organic light emitting element comprising the same, the light extraction substrate comprising: a base substrate; a plurality of light scattering objects arranged on the base substrate; a matrix layer formed on the base substrate to cover the plurality of light scattering objects; and a planarization layer that is formed on the matrix layer and of which the surface makes contact with an organic light emitting element, wherein at least one of the cover matrix layer, the planarization layer, and the light scattering objects has a different index of refraction.
-
公开(公告)号：US20170352839A1
公开(公告)日：2017-12-07
申请号：US15538517
申请日：2015-12-16
发明人： Dong Hyun Kim
CPC分类号： H01L51/5268 , H01L51/0048 , H01L51/0096 , H01L51/0097 , H01L51/5275 , H01L51/56 , H01L2251/303 , H01L2251/5369 , Y02E10/549
摘要： The present invention relates to a light extracting substrate for an organic light emitting device, a method of manufacturing same, and an organic light emitting device including same and, more particularly, to: a light extracting substrate for an organic light emitting device, the light extracting substrate being capable of not only maximizing the light extraction efficiency of an organic light emitting device through an undulating structure formed on a surface contacting the organic light emitting device and through a scattering structure having a maximized refractive index difference, but also of being manufactured through a simple process constituted of anode oxidation and wet coating; a method of manufacturing same; and an organic light emitting device including same. To this end, the present invention provides a light extracting substrate for an organic light emitting device, a method of manufacturing same, and an organic light emitting device including same, the light extracting substrate characterized by comprising: a base substrate; a plurality of nanotubes formed on the base substrate; and a coating layer formed on the plurality of nanotubes, sealing the top of the plurality of nanotubes, forming an air layer inside each of the plurality of nanotubes, and having undulations formed on the surface thereof due to capillary action induced by the plurality of nanotubes during forming.
-
3.发明申请公开(公告)号：US20170279083A1
公开(公告)日：2017-09-28
申请号：US15514301
申请日：2015-09-18
发明人： Hong Yoon , Joo Young Lee , Hyun Hee Lee , Dong Hyun Kim , Min Seok Kim , Seo Hyun Kim , Kwang Je Woo
CPC分类号： H01L51/5268 , G02B5/0242 , H01L51/0096 , H01L51/0097 , H01L51/5275 , H01L2251/5369 , Y02E10/549
摘要： The present invention relates to a light extraction substrate for an organic light emitting element and, more specifically, to a light extraction substrate for an organic light emitting element that can enhance the light extraction efficiency of the organic light emitting element by optimizing a stack structure that can maximize scattering efficiency, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element and an organic light emitting element comprising the same, the light extraction substrate comprising: a base substrate; a plurality of light scattering objects arranged on the base substrate; a matrix layer formed on the base substrate to cover the plurality of light scattering objects; and a planarization layer that is formed on the matrix layer and of which the surface makes contact with an organic light emitting element, wherein at least one of the cover matrix layer, the planarization layer, and the light scattering objects has a different index of refraction.
-
公开(公告)号：US10033012B2
公开(公告)日：2018-07-24
申请号：US15539864
申请日：2015-12-18
发明人： Joo Young Lee , Dong Hyun Kim , Seo Hyun Kim
摘要： The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, the method capable of complicating or diversifying the path of a light that is emitted by forming cracks on a matrix layer that can induce scattering of the light emitted from the organic light emitting diode, thereby further improving light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; and a mixture firing step of firing the mixture which has been coated to form, on the base substrate, the matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed, wherein in the mixture firing step, cracks that can induce scattering of the light emitted from the light emitting diode are formed on the matrix layer due to the difference in the coefficient of thermal expression (CTE) of the base substrate and the first metal oxide.
-
公开(公告)号：US20170263893A1
公开(公告)日：2017-09-14
申请号：US15508732
申请日：2015-09-03
发明人： Dong Hyun Kim , Seo Hyun Kim , Eui Soo Kim , Kyoung Wook Park , Il Hee Baek , Chang Min Song , Gun Sang Yoon , Hong Yoon , Joo Young Lee , Hyun Hee Lee , Eun Ho Choi
CPC分类号： H01L51/5268 , C23C14/48 , C23C14/5806 , H01L51/5215 , H01L51/56 , H01L2251/303
摘要： The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting diode and, more specifically, to a method for manufacturing a light extraction substrate for an organic light-emitting diode, which can improve light extraction efficiency of an organic light-emitting diode and can also remarkably reduce a manufacturing process, manufacturing costs, and manufacturing time. To this end, the present invention provides a method for manufacturing a light extraction substrate for an organic light-emitting diode, the method comprising: an ion injection step of injecting, into the inside of the base material, an ion from one side of a base material arranged on a transparent electrode of an organic light-emitting diode, so as to form an ion injection layer inside the base material; and a heat treatment step of forming, inside the base material, a pore layer having a plurality of pores having a different refractive index from that of the base material, through the application of thermal energy to the ion injection layer, wherein the plurality of pores are induced through the gasification of the ion.
-
公开(公告)号：US20170256745A1
公开(公告)日：2017-09-07
申请号：US15508715
申请日：2015-09-03
发明人： Eun Ho Choi , Seo Hyun Kim , Joo Young Lee , Dong Hyun Kim , Eui Soo Kim
CPC分类号： H01L51/5268 , B03C1/015 , H01F1/0045 , H01F1/0063 , H01F41/24 , H01F41/30 , H01L51/5215 , H01L51/56 , H01L2251/303
摘要： The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting diode and, more specifically, to a method for manufacturing a light extraction substrate for an organic light-emitting diode, capable of increasing light extraction efficiency and structural stability of an organic light-emitting diode by improving the dispersibility of light scattering particles, distributed inside a matrix layer, and substrate adhesion. To this end, the present invention provides a method for manufacturing a light extraction substrate for an organic light-emitting diode, the method comprising: a first mixing step of mixing transparent magnetic nanoparticles with a volatile first solution; a second mixing step of mixing, with a second solution including nonmagnetic oxide particles, a mixed liquid formed through the first mixing step and light scattered particles; a coating step of coating a base substrate with a coating solution formed through the second mixing step; and a magnetic field application step of applying a magnetic field to the coating solution side on the lower part of the base substrate so as to magnetically align the transparent magnetic nanoparticles included inside the coating solution.
-
公开(公告)号：US10153458B2
公开(公告)日：2018-12-11
申请号：US15539892
申请日：2015-12-18
发明人： Joo Young Lee , Yoon Young Kwon , Dong Hyun Kim , Seo Hyun Kim
IPC分类号： H01L51/00 , H01L51/52 , H01L31/0232 , H01L51/50
摘要： The present invention relates to an organic light emitting diode, and more specifically, to an organic light emitting diode capable of significantly increasing light extraction efficiency through optimization of a corrugated structure, which is formed by being transferred from an inner light extraction layer, thereby enabling excellent light-emitting efficiency. To this end, provided in the present invention is the organic light emitting diode comprising: a first substrate; the inner light emitting layer formed on the first substrate; a first electrode formed on the inner light emitting layer; an organic light emitting layer formed on the first electrode; and a second electrode formed on the organic light emitting layer, wherein corrugation is formed on the surface of the inner light emitting layer, wherein the corrugation is sequentially transferred onto the first electrode, the organic light emitting layer, and the second electrode, and wherein the surface of the second electrode comprises the corrugated structure, wherein the corrugated structure comprises a plurality of convex portions and a plurality of concave portions, which are formed between the convex portions that are adjacent, and wherein the depth/pitch ratio with respect to the pitch between the convex portions that are adjacent and the depth of the concave portions is 0.1 to 7.
-
公开(公告)号：US20170346042A1
公开(公告)日：2017-11-30
申请号：US15539864
申请日：2015-12-18
发明人： Joo Young Lee , Dong Hyun Kim , Seo Hyun Kim
CPC分类号： H01L51/5268 , H01L51/0096 , H01L51/0097 , H01L51/5012 , H01L51/5206 , H01L51/5221 , H01L51/56 , H01L2251/303 , H01L2251/5338
摘要： The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, the method capable of complicating or diversifying the path of a light that is emitted by forming cracks on a matrix layer that can induce scattering of the light emitted from the organic light emitting diode, thereby further improving light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; and a mixture firing step of firing the mixture which has been coated to form, on the base substrate, the matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed, wherein in the mixture firing step, cracks that can induce scattering of the light emitted from the light emitting diode are formed on the matrix layer due to the difference in the coefficient of thermal expression (CTE) of the base substrate and the first metal oxide.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.016 秒)
