Title:
LIGHT GUIDE PLATE, SURFACE LIGHT SOURCE DEVICE, DISPLAY DEVICE, AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/155962
Kind Code:
A1
Abstract:
Disclosed is a planar light guide plate having, on the side surface thereof, a light input surface from which light is inputted, said light guide plate outputting, from a light output surface, the light having been inputted from the light input surface. The light guide plate is provided with: a plurality of diffuse reflection sections, which are discretely provided on the light output surface, and which diffusely reflect light; and a plurality of protruding strips, which are provided on the surface on the reverse side of the light output surface, and which extend in the perpendicular direction with respect to the light input surface when viewed from the normal direction of the surface on the reverse side of the light output surface.
Inventors:
SHIMADA RYO (JP)
AYABE TAKAHIRO (JP)
KUROKAWA TAKAFUMI (JP)
OKADA KEIJI (JP)
AYABE TAKAHIRO (JP)
KUROKAWA TAKAFUMI (JP)
OKADA KEIJI (JP)
Application Number:
PCT/JP2019/003174
Publication Date:
August 15, 2019
Filing Date:
January 30, 2019
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
F21S2/00; G02F1/13357; F21Y115/10
Foreign References:
| JP2006164530A | 2006-06-22 | |||
| JP2016143652A | 2016-08-08 | |||
| JP2012142303A | 2012-07-26 | |||
| JP2013200993A | 2013-10-03 | |||
| JP2015046317A | 2015-03-12 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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