| 摘要 |
PROBLEM TO BE SOLVED: To express a difference between what can be seen from the front and what can be seen from the direction of a fixed angle. SOLUTION: Arbitrary LED chips of a red LED chip 2aR, a green LED chip 2aG, a red LED chip 2bR, and a green LED chip 2bG of a printed board 1 set in concave hole parts 4a, 4b are lighted up, and the light from the LED chips are reflected directly or on slopes 4a1, 4a3 and vertical plane 4a2, 4a4 and are diffused by a synthetic resin filing material 5a consisting of a high light-diffusive material and is further emitted in the direction of the opening 4a5. Since display segments 31-37 are approximately hexahedrons consisting of a low light-diffusive board-like material, an observer can be recognize them as a difference between the luminous energizes emanated from the upper surfaces of the display segments 31-37 and the sides 31b of the display segments 31-37, and a three-dimensional feeling by the display segments 31-37 can be expressed. |
