Patent ID: 8243966

Claim:
An assembly structure of a flat speaker, comprising: at least two speaker units, each speaker unit comprising a first electrode, a vibrating film, and a second electrode, wherein the vibrating film is stacked on the second electrode, and is disposed between the first electrode and the second electrode; and at least a connecting structure, for assembling the speaker units, and the connecting structure comprising: a first conductive layer, electrically connected to the first electrodes through a contact area, wherein the first electrode on the contact area has a first length parallel to the first contact area, and the first conductive layer on the first contact area has a third length parallel to the contact area; a second conductive layer, electrically connected to the second electrodes through a second contact area, wherein the second electrode on the second contact area has a second length parallel to the contact area, and the second conductive layer on the second contact area has a fourth length and a fifth length respectively parallel to the second contact area, and the fourth and fifth lengths are less than or equal to the second length; and a first insulating layer, disposed between the first conductive layer and the second conductive layer, wherein when the speaker units are assembled through the connecting structure, the third length is less than or equal to a sum of the first lengths, and a sum of the third length, the fourth length, and the fifth length is less than or equal to a sum of the first lengths and the second lengths.