Light diffusion sheet
AssigneeKimoto Co., Ltd.
InventorsYoshihisa Kimura, Kenji Fukui, Junji Ichinokawa, Teruo Ohnuma
Life of this patent
Estimating the term…
Abstract
There is provided a light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface, wherein the uneven surface of the light diffusion layer exhibits an arithmetical mean deviation of 2.0 μm or more in three-dimensional surface roughness measurement and/or ten point height of irregularities of 10.0 μm or more in three-dimensional surface roughness measurement. This light diffusion sheet is high luminance in the front direction, is excellent in light-diffusing property, and is resistant to damage.
Claims21
A light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface, said resin particles having a mean particle diameter of 16.0-30.0 μm, wherein the uneven surface of the light diffusion layer exhibits ten point height of irregularities of 10.0 μm or more in three-dimensional surface roughness measurement, and wherein said resin particles have a coefficient of variation of particle diameter distribution of less than 50% and are present in an amount of 180-270 parts by weight per 100 parts by weight of said binder resin.
A light diffusion sheet comprising a light diffusion layer formed on a transparent substrate and containing a binder resin and resin particles that impart an uneven surface, said resin particles having a mean particle diameter of 16.0-30.0 μm, wherein the uneven surface of the light diffusion layer exhibits an arithmetical mean deviation of 2.0 μm or more in three-dimensional surface roughness measurement and ten point height of irregularities of 10.0 μm or more in three-dimensional surface roughness measurement, and wherein said resin particles have a coefficient of variation of particle diameter distribution of less than 50% and are present in an amount of 180-270 parts by weight per 100 parts by weight of said binder resin.
Dependencies are inferred from the claim text.