Patent ID: 8085971

Claim:
A planar speaker, comprising: a rectangular frame having a front opening and a back opening; a diaphragm; a flexible surround positioned between the circumference of said front opening of said frame and the edge of said diaphragm so that said diaphragm is suspended in said front opening; a moving-coil driver positioned in said frame and behind said diaphragm, a voice coil of said driver attached to a back surface of said diaphragm so that a back-and-forth movement of said voice coil causes said diaphragm to vibrate; two beams arranged in parallel between two opposing longer wall segments of said frame, behind said diaphragm, and on either side of said driver; and a plurality of suspension elements made of a flexible material, each suspension element having two vertical arm segments at two opposing sides, a lateral bridge element, and two vibration segments positioned between a back end of said arm segments and said bridge segment, respectively, integrally formed together, each vibration segment having a plurality of arcs end-to-end connected into a wave-like shape so as to achieve flexibility, said arm segments attached to a back surface of said diaphragm, said bridge segment attached to a beam so as to constrain a flexible deformation of said diaphragm along said diaphragm's longer side.