Title:
ILLUMINATION DEVICE AND LIQUID-CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/005320
Kind Code:
A1
Abstract:
The disclosed illumination device is provided with: a light-guide; a plurality of light sources arrayed along an end face of the light-guide; an optical element that collimates the light emitted by the light sources and inputs said collimated light into the light-guide; and a plurality of stripe-shaped switching regions provided inside the light-guide along the propagation direction of light propagating inside the light-guide. Each switching region can switch between a propagation state, in which the light propagating inside the light-guide is not emitted outside the light-guide, and an emission state, in which the light propagating inside the light-guide is emitted outside the light-guide.
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Inventors:
YOSHIDA HIDEFUMI
KAMADA TSUYOSHI
SHIBATA SATOSHI
KAMADA TSUYOSHI
SHIBATA SATOSHI
Application Number:
PCT/JP2011/065555
Publication Date:
January 12, 2012
Filing Date:
July 07, 2011
Export Citation:
Assignee:
SHARP KK (JP)
YOSHIDA HIDEFUMI
KAMADA TSUYOSHI
SHIBATA SATOSHI
YOSHIDA HIDEFUMI
KAMADA TSUYOSHI
SHIBATA SATOSHI
International Classes:
F21S2/00; F21V9/40; G02B6/00; G02F1/13; G02F1/1334; G02F1/13357; F21Y101/02
Domestic Patent References:
| WO2011083617A1 | 2011-07-14 |
Foreign References:
| JP2009199926A | 2009-09-03 |
Attorney, Agent or Firm:
FUNAYAMA Takeshi et al. (JP)
Takeshi Funayama (JP)
Takeshi Funayama (JP)
Download PDF:
Claims: