| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a backlight system for efficiently emitting light rays, saving energy consumption and extending service life by sticking an optical sheet with an adhesive provided with optical adhesive layer, which is less in total reflection of light rays at the interface with the optical member, is excellent in adhesiveness and cohesion and is excellent in long term durability to an adherend emitting light rays, and to provide an optical sheet with adhesive to be used in the backlight system and an illuminating device. <P>SOLUTION: The backlight system 6 is characterized in that an adherend 30 emitting light rays is bonded to an optical film 10 rugged to increase its surface area through an adhesive layer 20 containing an adhesive polymer having a gel fraction of 35-85%. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
