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US 9,804,304 B2Granted
Light-diffusing element, polarizer having light-diffusing element, and liquid crystal display device having same
AssigneeNitto Denko Corporation
InventorsAkinori Nishimura, Kozo Nakamura, Hiroyuki Takemoto, Takehito Fuchida
Life of this patent
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Abstract
There is provided a light diffusing element made of a thin film capable of realizing low backscattering and a high haze. A light diffusing element according to an embodiment of the present invention includes: a first region having a first refractive index; and a second region having a second refractive index. The first region and the second region form a fine uneven-shaped and spherical shell-shaped boundary.
Claims12
A light diffusing element, comprising:
- a first region having a first refractive index;
- a second region having a second refractive index, and a refractive index modulation region between the first region and the second region, wherein the refractive index modulation region contains a fine uneven-shaped and spherical shell-shaped boundary formed by the first region and the second region, and a refractive index of material within the refractive index modulation region changes substantially continuously through the refractive index modulation region from the first region to the second region.
A light diffusing element, comprising:
- a matrix;
- and light diffusing fine particles dispersed in the matrix, wherein two regions having different refractive indices at an interface between the matrix and each of the light diffusing fine particles or in a vicinity thereof form a refractive index modulation region containing a fine uneven-shaped and spherical shell-shaped boundary, and a refractive index of material within the refractive index modulation region changes substantially continuously through the refractive index modulation region between the two regions.
Dependencies are inferred from the claim text.