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公开(公告)号：US20220204796A1
公开(公告)日：2022-06-30
申请号：US17593438
申请日：2020-03-03
发明人： Jae Hoon JUNG , Hee Yeon YOO , Hye Jung HONG , Hyo Jin KO , Duk Ki KIM , Jun Bo SIM , Sung Chan JO , Jong Hyuk KANG , Keun Kyu SONG , Hyun Min CHO
IPC分类号： C09D11/50 , H01L33/00 , H01L25/075
摘要： A method for manufacturing a display device comprises the steps of: spraying, on a target substrate having a first electrode and a second electrode formed thereon, an element ink comprising a first element solvent and light-emitting elements dispersed in the first element solvent; forming a second element solvent in which at least some bonds of the first element solvent are decomposed by irradiating light to the first element solvent and mounting the light-emitting elements on the first electrode and the second electrode; and removing the second element solvent.
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公开(公告)号：US20220037559A1
公开(公告)日：2022-02-03
申请号：US17319602
申请日：2021-05-13
发明人： Hyo Jin KO , Duk Ki KIM , Jun Bo SIM , Na Mi HONG , Yong Hwi KIM , Chang Hee LEE , Jae Kook HA
摘要： A light emitting element ink comprises a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers, and an insulating film surrounding outer surfaces of the plurality of semiconductor layers, and a thickener dispersed in the light emitting element solvent, wherein the thickener includes a compound represented by Chemical Structural Formula 1 as a polyol-based compound capable of forming a hydrogen bond with the light emitting element solvent or another thickener, and the thickener has a boiling point in a range of about 200° C. to about 450° C.
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公开(公告)号：US20220109083A1
公开(公告)日：2022-04-07
申请号：US17320925
申请日：2021-05-14
发明人： Chang Hee LEE , Dong Uk KIM , Se Hun KIM , Hyo Jin KO , Dong Hoon KWAK , Young Il KIM , Ji Yoon KIM
摘要： A light emitting element includes a first surface corresponding to an end of the light emitting element, a second surface corresponding to another end of the light emitting element, a first semiconductor layer adjacent to the first surface, the first semiconductor layer including a first type of semiconductor, a second semiconductor layer adjacent to the second surface, the second semiconductor layer including a second type of semiconductor different from the first type of semiconductor, and an active layer disposed between the first semiconductor layer and the second semiconductor layer. An area of the first surface is larger than an area of the second surface, and a distance between the first surface and the second surface is shorter than a length defined by the first surface.
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公开(公告)号：US20210391308A1
公开(公告)日：2021-12-16
申请号：US17241943
申请日：2021-04-27
发明人： Jun Bo SIM , Duk Ki KIM , Yong Hwi KIM , Hyo Jin KO , Chang Hee LEE , Chan Woo JOO , Jae Kook HA , Na Mi HONG
IPC分类号： H01L25/075 , H01L27/12 , H01L33/24 , H01L33/38 , H01L33/44 , H01L33/62 , B82B3/00 , C09D11/50 , C09D11/322 , C09D11/38 , C09D11/037
摘要： A light-emitting element ink, a display device, and a method of fabricating the display device are provided. The light-emitting element ink includes a light-emitting element solvent, light-emitting elements dispersed in the light-emitting element solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film that surrounds parts of outer surfaces of the semiconductor layers, and a surfactant dispersed in the light-emitting element solvent, the surfactant including a fluorine-based and/or a silicon-based surfactant.
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公开(公告)号：US20220139871A1
公开(公告)日：2022-05-05
申请号：US17451284
申请日：2021-10-18
发明人： Na Mi HONG , Hyo Jin KO , Duk Ki KIM , Jun Bo SIM , Chang Hee LEE , Jae Kook HA , Gyu Bong KIM , Hoi Lim KIM
IPC分类号： H01L23/00 , H01L25/16 , C09D11/033 , C09K11/62
摘要： A light-emitting element ink and a method of manufacturing a display device using the light-emitting element ink are provided. The light-emitting element ink comprises a solvent, a dispersant mixed with the solvent, and a plurality of light-emitting elements dispersed in the solvent, each of the light-emitting elements including a plurality of semiconductor layers and an insulating film surrounding parts of outer surfaces of the semiconductor layers, wherein the dispersant includes an aqueous dispersant or an organic dispersant, if the dispersant is the aqueous dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of less than 7, and if the dispersant is the organic dispersant, the solvent has a hydrogen bonding parameter, of Hansen's solubility parameters, of 7 or greater.
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公开(公告)号：US20220093818A1
公开(公告)日：2022-03-24
申请号：US17360596
申请日：2021-06-28
发明人： Jun Bo SIM , Duk Ki KIM , Hyo Jin KO , Chang Hee LEE , Jae Kook HA , Na Mi HONG , Jong Hyuk KANG , Won Ho LEE , Hyun Deok IM , Eun A CHO
IPC分类号： H01L33/00 , H01L27/15 , H01L33/32 , H01L33/24 , H01L33/06 , C09D11/50 , C09D11/52 , C09D11/037 , C09D11/033
摘要： An ink for manufacturing a display device includes a solvent; and light emitting elements disposed in the solvent, wherein the light emitting elements include a first semiconductor layer including a first type of semiconductor and a second semiconductor layer including a second type of semiconductor, and an electrical conductivity of the ink is about 1.5 μS/m or less. Also provided are a method of manufacturing a display device using the ink and a display device manufactured by the method.
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公开(公告)号：US20210332256A1
公开(公告)日：2021-10-28
申请号：US17233288
申请日：2021-04-16
发明人： Jun Bo SIM , Hyo Jin KO , Duk Ki KIM , Chang Hee LEE , Jae Kook HA
摘要： A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.
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公开(公告)号：US20220223772A1
公开(公告)日：2022-07-14
申请号：US17445801
申请日：2021-08-24
发明人： Chang Hee LEE , Young Il KIM , Hyo Jin KO , Dong Hoon KWAK , Dong Uk KIM , Se Hun KIM , Ji Yoon KIM
IPC分类号： H01L33/62 , H01L25/075 , H01L27/12 , H01L33/00 , H01L33/24
摘要： A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.
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9.发明申请公开(公告)号：US20220165786A1
公开(公告)日：2022-05-26
申请号：US17454459
申请日：2021-11-10
发明人： Se Hun KIM , Chang Hee LEE , Jae Kook HA , In Pyo KIM , Jun Bo SIM , Hyo Jin KO , Chan Woo JOO , Na Mi HONG
摘要： A method of manufacturing a light emitting element includes: forming a plurality of light emitting patterns on a stack substrate; forming a polysilazane layer on the plurality of light emitting patterns; forming a first insulating film by curing the polysilazane layer; and forming a second insulating film on the first insulating film. The forming of the first insulating film includes photocuring the polysilazane layer by irradiating ultraviolet rays onto the polysilazane layer. The forming of the plurality of light emitting patterns includes: forming a light emitting stack structure on the stack substrate; and etching the light emitting stack structure.
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10.发明申请公开(公告)号：US20220093817A1
公开(公告)日：2022-03-24
申请号：US17476993
申请日：2021-09-16
发明人： Hyo Jin KO , Duk Ki KIM , Yong Hwi KIM , Jun Bo SIM , Na Mi HONG , Jong Hyuk KANG , Gyu Bong KIM , Hoi Lim KIM , Sae Na YUN , Chang Hee LEE , Hyun Deok IM , Eun A CHO , Jae Kook HA
IPC分类号： H01L33/00 , H01L27/15 , H01L33/24 , H01L33/38 , H01L33/44 , B82B3/00 , C09D11/52 , C09D11/50 , C09D11/033
摘要： An ink includes a solvent, and light-emitting elements dispersed in the solvent, each of the light-emitting elements comprising semiconductor layers and an insulating film partially surrounding outer surfaces of the semiconductor layers, wherein the solvent has Hansen solubility parameters of a polarity parameter between about 4 and about 9 and a hydrogen bonding parameter between about 6 and about 11.
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