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US 2023/0419718 A1Published application
Composite piezoelectric element and electronic device having the same
AssigneeLG Display Co., Ltd.
InventorsYuSeon KHO, Yong-Su HAM, YongWoo LEE
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Abstract
A composite piezoelectric element and an electronic device having the same are disclosed, in which the composite piezoelectric element includes insulating films and piezoelectric bodies, which are alternately arranged, wherein the piezoelectric bodies may be categorized into general piezoelectric bodies used as at least one of a haptic actuator, a speaker actuator and a receiver actuator, and a finger scan recognition piezoelectric body for finger scan recognition.
Claims18
A composite piezoelectric element, comprising:
- a plurality of first portions having flexibility;
- and
- a plurality of second portions having different piezoelectric characteristics, each of the plurality of second portions being between the plurality of first portions,
- wherein the plurality of second portions comprises:
- a first piezoelectric body having a first cavity;
- a second piezoelectric body having a second cavity different from the first cavity;
- and
- a third piezoelectric body without a cavity.
5 more elements
Dependencies are inferred from the claim text.