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Exciting device

A vibration excitation device and vibration excitation technology, which is applied in the direction of flat diaphragm, sensor type, instrument, etc., can solve the problems of not being able to set display panels on large panels, increasing the number of parts, and increasing costs.

Inactive Publication Date: 2005-02-02
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned exciter and the small panel are obstacles, and other devices such as a display panel cannot be installed behind the large panel.
In addition, when multiple exciters are installed, the number of parts increases and the cost increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0095] figure 1 It is an exploded perspective view of an example of a vibration excitation device that can be mounted on the surface of a display panel, figure 2 yes figure 1 A sectional view of the 2-2 line.

[0096] figure 1 The vibration excitation device 10 shown has a transparent substrate 2 , a vibration excitation member 3A, and a vibration generating mechanism 4 . The above-mentioned transparent substrate 2 is a rectangular plate-shaped object formed of a high-transparency material such as acrylic resin, polycarbonate, glass, or the like.

[0097] The vibration-exciting member 3A is made of a magnetic material such as iron or ferrite, and has a much smaller area than the transparent substrate 2 . The vibrating member 3A is mounted at a position on the Y2 side around the transparent substrate 2 from the surface on the Z2 side. In addition, the above-mentioned vibrating member 3A has an elongated shape with a long longitudinal dimension when the X direction is defi...

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PUM

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Abstract

A vibration excitation device, the vibration excitation part (32A) which is elongated along the X direction is arranged on the vibration substrate (31) which is elongated along the X direction, and the two ends of the vibration excitation part (32A) are fixed on on the vibration substrate (31). In addition, a piezoelectric element (33) functioning as a vibration generating mechanism is provided on an X-direction middle portion of the vibration excitation member (32A). The vibrating substrate (31) is directly or indirectly fixed on the sounding vibrating body, and the vibration of the vibrating component (32A) is transmitted to the sounding vibrating body through the vibrating substrate (31), so that the sounding vibrating body is in a sounding state. The vibrating device can emit sound from the sound-emitting vibrating body of the machine body.

Description

technical field [0001] The invention relates to a display device emitting sound from the surface of a display panel. Background technique [0002] As a flat panel speaker, it is shown in the following patent document 1. In this Patent Document 1, a small panel smaller than the large panel is stacked on top of the large panel, and an exciter is provided on the small panel. When the exciter is driven on the speaker, the small panel vibrates, and the vibration of the small panel is transmitted to the large panel so that sound can be emitted from the large panel and the small panel. [0003] 【Patent Document 1】 [0004] Special Form No. 2002-505814 [0005] Portable small electronic player, instead of installing speakers inside, you can connect headphones or external speakers to enjoy music, etc. When a planar speaker is mounted on such an electronic device, it is necessary to output a sound with a certain level of loudness, so it is necessary to mount a diaphragm formed wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/16H04M1/03H04R7/04H04R17/00
CPCH04R2440/05H04R17/00H04R2499/15G06F1/1637H04M1/03G06F1/1626G06F1/1616H04R7/045G06F1/1688
Inventor 铃木克俊斋藤功一堀野武信樋口真一铃木胜二三石哲也
Owner ALPS ALPINE CO LTD
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