| 摘要 |
This information display device is capable of input with an input body such as a general writing implement, and moreover, is capable at the time of said input of identifying and detecting the tip input portion of the input body even if said tip portion touches the display at the same time as the little finger of the hand holding said input body, the base of said finger, etc. This information display device is provided with an information display body (P) having a display (D), and a sheet-form optical waveguide (W) arranged on the surface of the display (D) and configuring a position sensor (A). In the sheet-form optical waveguide (W), a lattice-form core (2) is held between a sheet-form undercladding layer and an overcladding layer (3), and the modulus of elasticity of the core (2) is set greater than the modulus of elasticity of the undercladding layer and the modulus of elasticity of the overcladding layer (3). Further, intersections in the lattice-form core (2) are interrupted by gaps in at least one of the intersecting directions so are discontinuous. |
