Abstract: A display device is provided. The display device includes a screen body, a first angle adjustment mechanism, a connecting arm, a second angle adjustment mechanism, and a pedestal. The screen body is provided with a first set of positioning holes and a second set of positioning holes. A first angle adjustment mechanism is selectively connected to the screen body through the first set of positioning holes or the second set of positioning holes, so that the screen body is disposed vertically or horizontally. The first angle adjustment mechanism is pivotally connected to the connecting arm, so that the screen body and the connecting arm are rotatable relative to each other. The second angle adjustment mechanism is pivotally connected to the connecting arm and the pedestal, so that the connecting arm and the pedestal are rotatable relative to each other.

Abstract: The present invention provides a foldable structure for a point of sale (POS). The foldable structure comprises: a screen, a back plate of which is provided with a screen mounting part; a connecting arm, two ends of which are respectively provided with a first mounting part and a second mounting part; a base, a side plate of which is provided with a base mounting part; a first rotating member, coupled between the screen mounting part of the screen and the first mounting part of the connecting arm; and a second rotating member, coupled between the base mounting part of the base and the second mounting part of the connecting arm. The first rotating member and the second rotating member are rotated, and the connecting arm is folded to expand the screen and the base into a desktop type or a pulled-up vertical type, or the connecting arm is folded to gather the base against the back plate of the screen to form a wall-mounted type.