Title:
光学フィルム、面光源装置及び液晶表示装置
Document Type and Number:
Japanese Patent JP4019886
Kind Code:
B2
Abstract:
Plural diffusion patterns are formed on a light-incident surface of an optical film, while plural prisms are formed on a light-emitting surface. The diffusion patterns have, in at least one section thereof, a main inclined surface that is curved face with a relatively small inclination and an auxiliary inclined surface that is oppositely inclined to the main inclined surface with a relatively large inclination.
Inventors:
Motohiko Matsushita
Akihiro Funamoto
Shigeru Aoyama
Matsui Yuki
Kenji Kawado
Akihiro Funamoto
Shigeru Aoyama
Matsui Yuki
Kenji Kawado
Application Number:
JP2002287419A
Publication Date:
December 12, 2007
Filing Date:
September 30, 2002
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G02B5/02; G02B6/00; F21V8/00; G02B5/04; G02B5/08; G02F1/13357; F21Y103/00
Domestic Patent References:
| JP2002243945A | ||||
| JP2000222924A | ||||
| JP2000292790A | ||||
| JP11038209A | ||||
| JP2000180612A | ||||
| JP7333410A | ||||
| JP2002260424A |
Foreign References:
| WO2004019082A1 |
Attorney, Agent or Firm:
Masafusa Nakano