Light scattering sheet and process for producing the same
AssigneeFUJIFILM Corporation
InventorsKazuhiro Shiojiri, Kazuhiro Oki, Yusuke Ohashi
Life of this patent
Estimating the term…
Abstract
A process for producing a light scattering sheet includes: a coating step of coating a transparent support with a coating solution prepared by dissolving a resin material including at least two kinds selected from polymers and monomers phase-separable with each other in a solvent to form a coating layer; and a drying step of drying the coating layer to form a phase separated concavity and convexity structure on the coating layer by spinodal decomposition, wherein, in the drying step, high speed drying is carried out at a drying speed of 3.0 g/m2·sec or more at a critical phase separation concentration of the coating layer applied to the transparent support.
Claims11
A process for producing a light scattering sheet comprising:
- a coating step of coating a transparent support with a coating solution prepared by dissolving a resin material including at least two kinds selected from polymers and monomers phase-separable with each other in a solvent to form a coating layer;
- and
- a drying step of drying the coating layer to form a phase separated concavity and convexity structure on the coating layer by spinodal decomposition,
- wherein, in the drying step, high speed drying is carried out at a drying speed of 3.0 g/m2·sec or more at a critical phase separation concentration of the coating layer applied to the transparent support.
A light scattering sheet comprising:
- a transparent support;
- and
- a light scattering layer formed on a transparent support, the light scattering layer having a phase separated concavity and convexity structure formed by phase separation of two or more resin materials phase-separable with each other,
- wherein the phase separated concavity and convexity structure is a sea-island structure of the two or more resin materials, and
- a plurality of domains constituting an island have a random shape mainly having a string shape.
Dependencies are inferred from the claim text.