OPTICAL SHEET, SCREEN, AND DISPLAY APPARATUS
First Claim
1. An optical sheet comprising a particle layer includinga transparent retaining part that has a predetermined thickness, anda particle that is accommodated in a cavity formed in the retaining part and includes a first portion and a second portion having different dielectric constants, whereinthe first portion includes a transparent first main portion and a first diffusion component that diffuses light,the second portion includes a transparent second main portion and a second diffusion component that diffuses light, andthe first diffusion component and the second diffusion component have a diameter d satisfying the following conditional expression (1):
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0.1 μ
m<
d<
15 μ
m
(1)
1 Assignment
0 Petitions
Accused Products
Abstract
An optical sheet, a screen, and a display apparatus capable of reducing speckles are provided. An optical sheet (50) includes a particle layer (55) including a transparent retaining part (56) having a predetermined thickness and a particle (60) that is accommodated in a cavity (56a) formed in the retaining part (56) and includes a first portion (61) and a second portion (62) having different dielectric constants. The first portion (61) includes a transparent first main portion (66a) and a first diffusion component (66b) that diffuses light. The second portion (62) includes a transparent second main portion (67a) and a second diffusion component (67b) that diffuses light. The first diffusion component (66b) and the second diffusion component (67b) have a diameter d satisfying the following conditional expression (1): 0.1 μm≤d≤15 μm (1).
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Citations
13 Claims
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1. An optical sheet comprising a particle layer including
a transparent retaining part that has a predetermined thickness, and a particle that is accommodated in a cavity formed in the retaining part and includes a first portion and a second portion having different dielectric constants, wherein the first portion includes a transparent first main portion and a first diffusion component that diffuses light, the second portion includes a transparent second main portion and a second diffusion component that diffuses light, and the first diffusion component and the second diffusion component have a diameter d satisfying the following conditional expression (1):
0.1 μ
m<
d<
15 μ
m
(1)- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
Specification