| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide unit exhibiting high operability and good pressing touch.SOLUTION: The light guide unit comprises stacked layers of: a first layer including a plurality of first light guide paths 21 for guiding light entering from one end face side to the other end face side of a display 11, and first partition plates 22 partitioning the adjoining first light guide paths 21; and a second layer including a plurality of second light guide paths 31 in a positional relation of three-dimensionally intersecting the first light guide paths 21 when observed from abode the display, for guiding light entering one end face side to the other end face side, and second partition plates 32 partitioning adjoining two light guide paths 31. The unit also includes light-transmitting plates 20, 30, and 40 each having light transmitting property, the light-transmitting plates being respectively disposed on an upper surface of the first layer, on a lower surface of the second layer and on an interface between the first layer and the second layer; and an air layer 50 in at least one space between the upper surface of the first light guide path 21 and the light-transmitting plate 20, between the lower surface of the first light guide path 21 and the light-transmitting plate 30, between the upper surface of the second light guide path 31 and the light-transmitting plate 30, and between the lower surface of the second light guide paths 31 and the light-transmitting plate 40. |
