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Title:
EDGE LIGHT-TYPE ILLUMINATION DEVICE AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/081394
Kind Code:
A1
Abstract:
Provided are an edge light-type illumination device and a display device with which it is possible to avoid erosion of a reflection pattern and avoid the occurrence of uneven brightness even if a reflecting sheet and a light guiding plate come into contact and grind against one another when receiving oscillations during transport, etc. The edge light-type illumination device (10) comprises: a light guiding plate (11); a light source (12) which is positioned in a lateral face direction of the light guiding plate (11); a reflection pattern (13) which is formed upon the light guiding plate (11); and a reflecting sheet (14) which is positioned on the reflection pattern (13) side of the light guiding plate (11). The edge light-type illumination device (10) is further configured with a protective layer (15) disposed between the reflection pattern (13) and the reflecting sheet (14) in order to protect the obverse face of the reflection pattern (13). The display device (1) is configured using the edge light-type illumination device (10) as an external light illumination device of a display panel.

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Inventors:
YOSHIKAWA TAKAHIRO
Application Number:
PCT/JP2011/077513
Publication Date:
June 21, 2012
Filing Date:
November 29, 2011
Export Citation:
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Assignee:
SHARP KK (JP)
YOSHIKAWA TAKAHIRO
International Classes:
F21S2/00; G02F1/13357; F21Y101/02
Foreign References:
JP2009522717A2009-06-11
JP2009283384A2009-12-03
JP2010262770A2010-11-18
Attorney, Agent or Firm:
UENO, NOBORU (JP)
Ueno 登 (JP)
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Claims: