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US 12,707,216 B2Granted
Diaphragm, sound generation device, and method for manufacturing sound generation device
AssigneeLG Electronics Inc.
InventorsSungdan Lee, Keunyoung Lee, Duho Lee
Life of this patent
Estimating the term…
Abstract
Embodiments relate to a diaphragm having high rigidity and high internal loss. The diaphragm may comprise: a matrix-shaped structure including a plurality of through-holes; and a graphene layer disposed in at least a part of the plurality of through-holes and coupled to the structure.
Claims15
A diaphragm comprising:
- a structure including a first material formed in a matrix shape including a plurality of through holes;
- and
- a graphene layer combined with the structure to be located in at least one of the plurality of through holes to fill the at least a portion of the through holes.
A sound generating device comprising:
- a vibrating portion;
- and
- a driver configured to support the vibrating portion and cause the vibrating portion to vibrate,
- wherein the vibrating portion comprises:
- a structure formed in a matrix shape including a plurality of through holes, and
- a graphene layer combined with the structure to be located in at least one of the plurality of through holes to fill the at least a portion of the through holes.
3 more elements
A method of manufacturing a sound generating device, the method comprising:
- forming a structure having a structure formed in a matrix shape including a plurality of through holes and comprised of a first material in a first solution including graphene particles;
- forming a graphene film by combining the graphene particles with the structure to be located in at least one of the plurality of through holes to fill the at least a portion of the through holes;
- and
- compressing the graphene film to form a shape using a mold.
1 more element
Dependencies are inferred from the claim text.