| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical touch panel which can be used even under an environment in which the illuminance of disturbance light is high. <P>SOLUTION: This optical touch panel 10 is provided with: a coordinate input region 11; a light emitting element 12 for emitting the rays of light of an infrared region; a light receiving element 13 for receiving the visible rays of light of the infrared region; a light emission side optical waveguide 14 connected to the light emitting element 12; and a light reception side optical waveguide 15 connected to the light receiving element 13. An outgoing edge 14a of the light emission side optical waveguide 14 is faced to an incident end 15a of the light reception side optical waveguide 15 with the coordinate input region 11 interposed. The light reception side optical waveguide 15 is provided with an organic colored layer 16 on the surface. The transmittance of the visible rays of light of the organic colored layer 16 is low, and the transmittance of the infrared rays of light of the same is high. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
