A touch-sensitive display device includes a display body, a container, a movable cover and at least two optical modules. The display body has a display surface. The container is connected with the display body. The movable cover pivots on the container so as to have an open position and a storage position. The two optical modules are disposed on the movable cover. When the movable cover is at the open position, the two optical modules protrudes outward from an extended surface of the display surface, such that the two optical modules is exposed outward from the container. When the movable cover rotates from the open position to the storage position, the movable cover drives the two optical modules to move backward to be underneath the extended surface of the display surface, such that the two optical modules are located inside the container.