公开(公告)号：US09445200B2

公开(公告)日：2016-09-13

申请号：US13651228

申请日：2012-10-12

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hye Jin Kim ,  Woo Seok Yang

IPC: H04R7/26 ,  H04R17/00 ,  H04R7/04 ,  H04R31/00 ,  H04R7/20

CPC classification number: H04R7/26 ,  H04R7/04 ,  H04R7/20 ,  H04R17/00 ,  H04R31/003 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/207 ,  H04R2499/11 ,  H04R2499/15 ,  Y10T156/10

Abstract: The present disclosure relates to a piezoelectric speaker having a weight that enables a frequency response characteristic of the piezoelectric speaker to be uniform by disposing a weight of a flexible material on an acoustic diaphragm or on and below an acoustic diaphragm of the piezoelectric speaker, thereby enhancing flatness of sound. The piezoelectric speaker having the weight includes a piezoelectric device having a piezoelectric layer and an electrode formed on or on and below the piezoelectric layer to apply an electrical signal to the piezoelectric layer; an acoustic diaphragm having a wider area than the piezoelectric device and bonded on one surface of the piezoelectric device; a frame disposed in a form that surrounds a side surface of the acoustic diaphragm; and a weight disposed above the acoustic diaphragm or above and below the acoustic diaphragm on which the piezoelectric device is disposed to thereby control a vibration.

Abstract translation: 本发明涉及一种压电扬声器，其具有能够通过将柔性材料的重量设置在声膜上或压电扬声器的声膜上或下方而使压电扬声器的频率响应特性能够均匀的重量，由此增强 声音平坦度 具有该重量的压电扬声器包括具有压电层和形成在压电层上或之下的电极的压电器件，以将电信号施加到压电层; 隔膜，其压电元件的面积比压电元件宽; 以围绕声膜的侧表面的形式设置的框架; 以及设置在声膜上方或配置有压电装置的声膜上方和下方的重物，从而控制振动。

公开(公告)号：US09219971B2

公开(公告)日：2015-12-22

申请号：US13671502

申请日：2012-11-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hye Jin Kim ,  Sung Q Lee ,  Hong Yeol Lee ,  Kang Ho Park ,  Jong Dae Kim ,  Kun Mo Koo

IPC: H04R17/00 ,  H04R31/00 ,  H04R1/02 ,  H04R17/02 ,  H01L41/29 ,  H04R17/10 ,  H01L41/22 ,  H03H9/17

CPC classification number: H04R31/006 ,  H01L41/22 ,  H01L41/29 ,  H03H9/174 ,  H04R1/02 ,  H04R17/00 ,  H04R17/02 ,  H04R17/10 ,  H04R31/00 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49115

Abstract: A method of manufacturing a piezoelectric speaker comprises forming a piezoelectric thin film and then forming an upper electrode and a lower electrode on and beneath the piezoelectric thin film, respectively, forming a damping material layer for attachment of the piezoelectric thin film below the piezoelectric thin film with the upper and lower electrodes formed thereon and therebeneath, attaching the piezoelectric thin film to an acoustic diaphragm in an inclined structure in which the piezoelectric thin film is horizontally turned from the acoustic diaphragm, and performing drying at room temperature; and fixing the acoustic diaphragm to a frame using an adhesive material with high elasticity.

Abstract translation: 一种制造压电扬声器的方法包括：分别形成压电薄膜，然后在压电薄膜上下形成上电极和下电极，形成用于将压电薄膜连接到压电薄膜下面的阻尼材料层 其上面和下部电极形成在其上并在其下面，将压电薄膜以声学振膜的倾斜结构粘附到声学振膜中，其中压电薄膜从声膜水平转动，并在室温下进行干燥; 并使用高弹性的粘合材料将声膜固定在框架上。