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US 11,650,363 B2Granted
Low refractive layer and electronic device including the same
AssigneeSamsung Display Co., Ltd.
InventorsTaekjoon Lee, Young gu Kim, Sun-young Chang, Jongmin Ok, Hyelim Jang, Jin-soo Jung, Kyungseon Tak
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Abstract
A low refractive layer includes a plurality of hollow inorganic particles and a matrix between the hollow inorganic particles, and capable of exhibiting a good refractive index and improved durability by enhancing the weight ratio of the hollow inorganic particles to the matrix. An electronic device according to an embodiment of the inventive concept including the low refractive layer may exhibit improved reliability and good display quality.
Claims30
A refractive layer comprising:
- a plurality of hollow inorganic particles;
- and
- a matrix between the plurality of hollow inorganic particles,
- wherein a weight ratio of the plurality of hollow inorganic particles to the matrix is 4:6 to 7:3,
- wherein each of the plurality of hollow inorganic particles comprises a core and a shell surrounding the core,
- wherein the shell comprises:
- an inorganic layer defining the core and comprising Fe3O4;
- an organic layer surrounding an outer surface of the inorganic layer;
- and
- a surface treatment layer on an outer surface of the organic layer and comprising a coupling agent,
- wherein the coupling agent comprises:
- a first end comprising an acrylate group coupled to the organic layer of the shell;
- and
- a second end comprising a trihydroxysilyl group coupled to the matrix of the refractive layer,
- wherein the core defined by the inorganic layer of the shell is filled with a gas or a liquid, and
- wherein the shell has a thickness of 7 nm to 10 nm.
13 more elements
An electronic device comprising:
- a light source configured to provide a first light;
- a color converter on the light source, and comprising a first converter configured to wavelength-convert the first light into a second light and a second converter configured to wavelength-convert the first light into a third light;
- and
- a refractive layer on the light source and on at least one of an upper portion or a lower portion of the color converter, wherein
- the refractive layer comprises a plurality of hollow inorganic particles and a matrix between the plurality of hollow inorganic particles, and
- a weight ratio of the plurality of hollow inorganic particles to the matrix is 4:6 to 7:3,
- wherein each of the plurality of hollow inorganic particles comprises a core and a shell surrounding the core,
- wherein the shell comprises:
- an inorganic layer defining the core and comprising Fe3O4;
- an organic layer surrounding an outer surface of the inorganic layer;
- and
- a surface treatment layer on an outer surface of the organic layer and comprising a coupling agent,
- wherein the coupling agent comprises:
- a first end comprising an acrylate group coupled to the organic layer of the shell;
- and
- a second end comprising a trihydroxysilyl group coupled to the matrix of the refractive layer,
- wherein the core defined by the inorganic layer of the shell is filled with a gas or a liquid, and
- wherein the shell has a thickness of 7 nm to 10 nm.
15 more elements
Dependencies are inferred from the claim text.