Title:
LIGHT DIFFUSION SHEET AND DISPLAY DEVICE PROVIDED WITH THE LIGHT DIFFUSION SHEET
Document Type and Number:
WIPO Patent Application WO/2012/005135
Kind Code:
A1
Abstract:
Disclosed is a light diffusion sheet which diffuses light inputted from the light inputting surface, and outputs the diffused light from the light outputting surface. The light diffusion sheet is provided with: a plurality of recessed sections, each of which has the wall surface that transmits or totally reflects the inputted light, and which is opened in the light outputting surface; at least one light refraction section, which is provided on the light outputting surface between the recessed sections, and refracts the inputted light and the reflected light; and a flat section which is provided so as to form the outer end of the light refraction section on the light outputting surface.
Inventors:
UMEDA TOKIYOSHI
ITOH AKINORI
ITOH AKINORI
Application Number:
PCT/JP2011/064698
Publication Date:
January 12, 2012
Filing Date:
June 27, 2011
Export Citation:
Assignee:
SHARP KK (JP)
UMEDA TOKIYOSHI
ITOH AKINORI
UMEDA TOKIYOSHI
ITOH AKINORI
International Classes:
G02B5/02; G02F1/1335
Domestic Patent References:
| WO2009004696A1 | 2009-01-08 | |||
| WO2007066729A1 | 2007-06-14 |
Foreign References:
| JP2007248938A | 2007-09-27 | |||
| JPH095505A | 1997-01-10 | |||
| JP2000347009A | 2000-12-15 | |||
| JP2005043611A | 2005-02-17 |
Attorney, Agent or Firm:
FUNAYAMA Takeshi et al. (JP)
Takeshi Funayama (JP)
Takeshi Funayama (JP)
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