Patent ID: 7835146

Claim:
A coupling mechanism, for coupling or separating a holding arm and a casing of a display panel, the coupling mechanism at least comprising: a positioning element disposed on the holding arm, wherein the positioning element has a fixing hole; a fixing element for fixing at the fixing hole to connect the holding arm and the casing of the display panel; a pushing pillar for pressing the fixing element to separate the fixing element from the fixing hole, thereby separating the holding arm from the casing of the display panel; a fastening element, disposed on the casing of the display panel; and an elastic element, having elastic characteristic and disposed between the fixing element and the fastening element, wherein one end of the elastic element is fixed on the fastening element, and the other end of the elastic element is against the fixing element, wherein when the elastic element is pressed by a force, the elastic element is compressed, and when the force is disappeared, the elastic element regains its original shape, such that the fixing element is moved back and forth by the elastic element.