PROJECTION APPARATUS AND CONTROL METHOD

The invention provides a projection apparatus configured to be disposed on a vehicle door (104L,104R), and a control method of the projection apparatus. The projection apparatus includes an illumination source (112), a projection display apparatus (114) and a controller (120). The illumination source is configured to provide an illumination beam. The projection display apparatus is disposed on a transmission path of the illumination beam, and is configured to convert the illumination beam into a projection beam. The controller is coupled to the projection display apparatus. The controller determines whether the vehicle door is a first vehicle door or a second vehicle door according to an opening operation of the vehicle door, and correspondingly causes the projection beam to display an image (IM1, IM2).