Display apparatus and generate virtual image method for moving system thereof

A display apparatus and generate virtual image method for moving system thereof. The display apparatus is set inside a moving apparatus with a transmissive imaging element and generate a light beam projecting on the transmissive imaging element to form a virtual image. The display apparatus includes a display element, a first reflective element, and a second reflective element. The display element emits a light ray. The light ray is incident on the first reflective element through a first optical path, and after being reflected by the first reflective element, the light ray is incident on the second reflective element through a second optical path, and after being reflected by the second reflective element, the light ray exits the second reflective element through a third optical path and causes the display apparatus to generate the light beam. The interval between the center point of the first reflective element and the center point of the second reflective element is greater than that of the center point of