| 摘要 |
PROBLEM TO BE SOLVED: To maintain a rotation range and size of a movable body to a desired degree, and enhance freedom degree of arrangement of an additional accessory.SOLUTION: A display unit comprises: a projector for projecting a video; a movable screen capable of operating between a first position where the movable screen is outside of a projection range of the projector, and a second position where the movable screen is a projection object of the projector; and a drive mechanism for driving the movable screen. The drive mechanism comprises: a motor; a shaft which rotates by driving the motor; two gears disposed on both end parts of the shaft, and rotating with the shaft; and two arms coupled to two gears, rotated around a rotary shaft along a predetermined direction when the two gears are rotated, and coupled to both end parts of a predetermined direction on the movable screen. The movable screen is rotated and operated between the first and second positions, in linkage with rotation of the two arms around the rotary shaft.SELECTED DRAWING: Figure 61 |
