Title:
防眩性光学積層体
Document Type and Number:
Japanese Patent JP5823264
Kind Code:
B2
Abstract:
An optical laminate having a light transparent base material and an anti-dazzling layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer has a concavoconvex surface. The concavoconvex shape simultaneously satisfies the following formulae (I) 1.2<=thetaa<=2.5 and (II) 0.004<=psi<=0.18, wherein thetaa represents the average inclination angle of the concavoconvex part; Rz represents the average roughness of concavoconvexes; Sm represents the average spacing of the concavoconvexes; and psi represents the ratio, between Rz and Sm, defined by psi=Rz/Sm. The optical laminate has an internal haze value of not less than 0% and not more than 50%, and the optical laminate has a surface haze value of not less than 0.5% and not more than 4.5%.
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Inventors:
Iwata Yumitsu
Goichi Mikami
Yoshimura Nishimura
Takashi Kodama
Goichi Mikami
Yoshimura Nishimura
Takashi Kodama
Application Number:
JP2011258153A
Publication Date:
November 25, 2015
Filing Date:
November 25, 2011
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
G02B5/02; B32B7/02; G02F1/1335
Domestic Patent References:
| JP2000338310A |
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroyuki Nagai
Mari Asano
Enoki Yasutaka
Hiroyuki Nagai
Mari Asano
Enoki Yasutaka