| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide sheet having grooves of light shielding lines formed along the edge, easily preventing the deformation/breakage of the sheet at terminal portions of the grooves of the light shielding lines.SOLUTION: The light shielding line 13 and the inside light shielding line 15 are formed along the edge 10d of the light guide sheet 10 which is formed of a translucent urethane resin. Colored light shielding agent is filled inside the light shielding lines 13, 15. The light shielding line 13 has a bent portion 13c, and the terminal portion 13a formed at a position apart from the edge 10d of the sheet, and so the edge 10d of the light guide sheet 10 can be cut while easily preventing the deformation/breakage of the urethane resin between the terminal portion 13a and the edge 10d. |
