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US 2020/0052172 A1Published application
Light emitting device and method of manufacturing the same, and display device
AssigneeNichia Corporation
InventorKoji ABE
Life of this patent
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Abstract
A light emitting device includes a light emitting element, a light-transmissive member covering the light emitting element, a fluorescent material contained in the light-transmissive member, and a multilayer film disposed on the light-transmissive member and including alternatively layered two types of films of different refractive indices, in which the two types of films are aggregated nano-particles of TiO2 and aggregated nano-particles of SiO2.
Claims13
A method of manufacturing a light emitting device comprising:
- providing a light emitting device, the light emitting device comprising a light emitting element covered by a light-transmissive member that is configured to allow light from the light emitting element to pass through, and a fluorescent material to convert wavelength of light from the light emitting element, the fluorescent material being contained in the light-transmissive member;
- and
- disposing a multilayer film on the light-transmissive member, comprising;
- applying a first slurry comprising first nano-particles dispersed in a first solvent on the light-transmissive member to dispose a first film of aggregated first nano-particles;
- applying a second slurry comprising second nano-particles dispersed in a second solvent on the first film to dispose a second film, the second nano-particles having a refractive index different from a refractive index of the first nano-particles;
- and
- repeating the disposing of the first film and the second film to dispose a multilayer film having a predetermined number of layered films.
4 more elements
Dependencies are inferred from the claim text.