| 摘要 |
PROBLEM TO BE SOLVED: To expand a reproduction frequency band of a screen speaker system without greatly changing a structure. SOLUTION: The screen speaker system 10 which has a screen 12 for projecting a video image by a projector and drives the screen 12 to emit a sound from the speaker 12 is provided with: a driver 50 for driving the screen 12; and at least one piezoelectric element 70 which are piezoelectric elements for driving the screen 12 and perform reproduction in a frequency band higher than a reproduction frequency band in the driver 50. COPYRIGHT: (C)2007,JPO&INPIT
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