초록 ▼

Disclosed is a piezoelectric diaphragm with a transparent piezoelectric member and a transparent electrode. Also disclosed is a portable electronic device that has a display means to display an image and a piezoelectric speaker having a transparent piezoelectric member and a transparent electrode. I

Disclosed is a piezoelectric diaphragm with a transparent piezoelectric member and a transparent electrode. Also disclosed is a portable electronic device that has a display means to display an image and a piezoelectric speaker having a transparent piezoelectric member and a transparent electrode. In this portable electronic device, the piezoelectric speaker is disposed in front of the display means.

대표청구항 ▼

1. A piezoelectric speaker, comprising:a piezoelectric diaphragm which is composed of a transparent piezoelectric member and a transparent electrode; a first frame which holds the fringe of said piezoelectric diaphragm on the side of transparent electrode; and a second frame which holds the fringe o

1. A piezoelectric speaker, comprising:a piezoelectric diaphragm which is composed of a transparent piezoelectric member and a transparent electrode; a first frame which holds the fringe of said piezoelectric diaphragm on the side of transparent electrode; and a second frame which holds the fringe of said piezoelectric diaphragm on the side of transparent piezoelectric member; wherein said first and second frames are installed so that an image to be displayed by a display means is seen through transparent parts inside said first and second frames; wherein said transparent piezoelectric member and said transparent electrode composing said piezoelectric diaphragm each are patterned with a transparent pattern; and a terminal disposed on said first frame is provided with a first electrode electrically connected to said transparent electrode and a second electrode electrically connected to the transparent piezoelectric member; and wherein said transparent piezoelectric member and said transparent electrode have the same external dimensions except for a cutout provided along a portion of an edge of said transparent electrode, said cutout corresponding to said second electrode; and said second electrode is electrically connected to said transparent piezoelectric member through said cutout when said first frame is contacted with said piezoelectric diaphragm.