Title:
LIGHT DIFFUSER PLATE
Document Type and Number:
Japanese Patent JP2008292969
Kind Code:
A
Abstract:
To provide a light diffuser plate exhibiting high light diffusing performance even when a small amount of a light diffusing agent is used.
A light diffuser plate comprises a transparent resin composition containing styrene monomer-methacrylic acid copolymer and the light diffusing agent. The light diffusing agent is preferably acrylic or silicon resin particles. The use amount of the light diffusing agent is 0.3-3 pts.mass based on 100 pts.mass the transparent resin. The light diffusing agent has an average particle diameter from 0.6-1.5 m and a standard deviation of particle diameters from 0.01-0.5 m, and an absolute value |n| of a refractive index difference between the styrene monomer-methacrylic acid copolymer and it is at least 0.05.
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Inventors:
HAMAMATSU TOYOHIRO
KIMURA SHINYA
SAKAMOTO TAKASHI
KIMURA SHINYA
SAKAMOTO TAKASHI
Application Number:
JP2007213416A
Publication Date:
December 04, 2008
Filing Date:
August 20, 2007
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO
International Classes:
B32B27/18; G02B5/02; B32B27/30; F21V3/00; F21V3/04; G02F1/1335
Domestic Patent References:
| JP2008292977A | 2008-12-04 | |||
| JP2002293809A | 2002-10-09 | |||
| JP2006116957A | 2006-05-11 | |||
| JP2006106185A | 2006-04-20 | |||
| JP2004050607A | 2004-02-19 | |||
| JP2005239837A | 2005-09-08 | |||
| JP2005181834A | 2005-07-07 |
Attorney, Agent or Firm:
Toru Nakayama