发明申请
- 专利标题: PIEZOELECTRIC ARRAY ELEMENTS FOR SOUND RECONSTRUCTION WITH A DIGITAL INPUT
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申请号: US15563829申请日: 2016-04-07
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公开(公告)号: US20180098139A1公开(公告)日: 2018-04-05
- 发明人: Armando Arpys AREVALO CARRENO , David CONCHOUSO GONZALEZ , David CASTRO SIGNORET , Ian G. FOULDS
- 申请人: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
- 国际申请: PCT/IB2016/051986 WO 20160407
- 主分类号: H04R1/00
- IPC分类号: H04R1/00 ; H04R31/00 ; H04R17/00 ; H04R1/02
摘要:
Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.
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