DIAPHRAGM FOR SPEAKER, SPEAKER USING THE SAME, AND ELECTRONIC EQUIPMENT AND DEVICE USING THE SPEAKER

摘要

PROBLEM TO BE SOLVED: To solve the problem that it is difficult to improve the strength of bamboo fiber obtained from bamboo having rigidity, and it is difficult to improve the performance of a bamboo fiber paper diaphragm for a speaker making good use of elasticity. SOLUTION: The diaphragm for the speaker is constituted by using properties of bamboo fiber whose physical machining is easy and incorporating≥5 wt.% bamboo fiber which is not treated by cooking. Material rigidity is improved by ensuring the strength and the elastic modulus of the bamboo fiber obtained from the rigid bamboo and then the diaphragm can have sufficient strength and the elastic modulus, so that the speaker can have high sound quality and high reliability. COPYRIGHT: (C)2008,JPO&INPIT