Light diffusion plate and its production process

Details Light diffusion plate and its production process Light diffusion plate and its production process

2007-12-04

2010-06-01

Sample, David R (Department: 1794)

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

C428S220000, C428S221000, C427S162000, C427S163100, C427S163400, C427S164000, C427S165000, C359S453000, C359S443000, C359S456000, C359S457000

Reexamination Certificate

active

07727626

ABSTRACT:
A light diffusion plate has a substrate and a light diffusion layer formed on the substrate. The light diffusion layer is composed of at least two layers: a first light diffusion layer containing a first matrix and a first light diffusion agent having a refractive index difference Δn1of 0.04≦Δn1≦0.2 with the first matrix, and a second light diffusion layer containing a second matrix and a second light diffusion agent having a refractive index difference Δn2of 0.005≦Δn2≦0.01 with the second matrix. The volume fraction of the first light diffusion agent in the first light diffusion layer is less than 40%, the volume fraction of the second light diffusion agent in the second light diffusion layer is at least 40% and the total thickness of the light diffusion layers is from 5 to 200 μm after curing.

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U.S. Appl. No. 12/364,057, filed Feb. 2, 2009, Inokuma, et al.
U.S. Appl. No. 12/503,877, filed Jul. 16, 2009, Inokuma, et al.

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