Title:
Optical diffuse reflection board
Document Type and Number:
Japanese Patent JP6213463
Kind Code:
B2
Abstract:
To provide a light diffusion reflecting plate including a substrate having thereon at least a ground coat layer and a top coat layer in contact with this ground coat layer, wherein the ground coat layer is a white coating film layer; the top coat layer contains a white pigment and two kinds of spherical particles; a content of the white pigment is from 2 to 15% by mass; the two kinds of spherical particles are (A) a spherical particle having an average particle size of from 5 to 30 µm and (B) a spherical particle having an average particle size of from 15 to 45 µm; a difference in the average particle size between the spherical particle (A) and the spherical particle (B) is 10 µm or more; and each of the spherical particle (A) and the spherical particle (B) is contained in an amount of from 5 to 17% by mass, respectively in the top coat layer. It is possible to provide a light diffusion reflecting plate having a high degree of whiteness and excellent light diffusion properties and antiglare properties.
Inventors:
Katsuhiro Miyake
Echigo Takuya
Toshihiro Kano
Echigo Takuya
Toshihiro Kano
Application Number:
JP2014516830A
Publication Date:
October 18, 2017
Filing Date:
May 22, 2013
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/08; B32B7/02; B32B15/08; B32B27/20; E04F13/08; F21V7/22; G02B5/02
Domestic Patent References:
| JP2002006399A | ||||
| JP2005248189A | ||||
| JP9304604A | ||||
| JP2009145842A | ||||
| JP2005251708A | ||||
| JP2005077445A | ||||
| JP2003266611A |
Foreign References:
| WO2011027905A1 |
Attorney, Agent or Firm:
Tamotsu Otani
Kenichi Hirasawa
Kenichi Hirasawa
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