Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COMPOSITE OPTICAL SHEET
Document Type and Number:
Japanese Patent JP2013137392
Kind Code:
A
Abstract:

To provide a composite optical sheet capable of improving quality of products using the optical sheet by suppressing damage on protrusions of the optical sheet so as to contribute to a cost reduction, a surface light source device including the optical sheet, a transmissive image display device, and a method of manufacturing the composite optical sheet.

A light guide unit 30 includes a light guide plate 31, and a white reflection sheet 35. The light guide plate 31 has a plurality of protrusions 32 provided on a reflection surface 31d. The white reflection sheet 35 is arranged opposite to the reflection surface 31d, and integrated with the light guide plate 31 by being joined with the protrusions 32. The light guide plate 31 and the white reflection sheet 35 are separated from each other in spaces between the protrusions 32 adjacent with each other on the light guide plate 31.


Inventors:
Oku, Hisanori
Sumiya, Hidenori
Application Number:
JP2011000287852
Publication Date:
July 11, 2013
Filing Date:
December 28, 2011
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO CHEMICAL CO LTD
International Classes:
G02B5/02; B32B3/30; B32B7/02; F21S2/00; G02B5/00; G02B5/08; G02F1/13357; F21Y101/02; F21Y103/00
Attorney, Agent or Firm:
長谷川 芳樹
清水 義憲
三上 敬史



 
Previous Patent: OPTICAL SHEET

Next Patent: MICROSCOPE