| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide film whose emission face is not damaged even when a pressing force is applied from the emission face side.SOLUTION: A light guide film 5 includes: a base material layer 51 formed of a film; a front face layer 52 formed to cover one face of the base material layer 51; and a back face layer 53 formed to cover the other face of the base material layer 51. A pattern of reflecting light emitted from the other face of the base material layer 51 is formed on a face opposite to the base material layer 51 of the back face layer 53. The modulus of elasticity of the front face layer 52 is equal to or lower than that of the base material layer 51, and the recovery of the front face layer 52 is equal to or higher than that of the base material layer 51. |
