| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide film capable of suppressing unevenness in brightness of a liquid crystal display surface and being made thin, when being used in an edge light-type backlight unit, and to provide a backlight unit and a portable terminal.SOLUTION: A light guide film used in an edge light-type backlight unit and having flexibility, includes sticking prevention means on its back surface. The light guide film includes: a plurality of light scattering portions disposed on a back surface side and scattering incident light to a front surface side; and a plurality of raised portions as the sticking prevention means, present around the plurality of light scattering portions and projecting to a back surface side. Alternatively, the light guide film has the plurality of raised portions as the sticking prevention means, projecting to the back surface side, and the raised portions are substantially annularly disposed. An average height (H) of the raised portions from a back surface average interface is preferably 0.1 μm or more and 5 μm or less. |
