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JPS6161598A - Acoustic device - Google Patents

Acoustic device

Info

Publication number
JPS6161598A
JPS6161598A JP18400784A JP18400784A JPS6161598A JP S6161598 A JPS6161598 A JP S6161598A JP 18400784 A JP18400784 A JP 18400784A JP 18400784 A JP18400784 A JP 18400784A JP S6161598 A JPS6161598 A JP S6161598A
Authority
JP
Japan
Prior art keywords
piezoelectric elements
front panel
ray tube
cathode ray
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18400784A
Other languages
Japanese (ja)
Inventor
Haruo Kawai
川井　春夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18400784A priority Critical patent/JPS6161598A/en
Publication of JPS6161598A publication Critical patent/JPS6161598A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To make a set compact and to improve the tone quality by causing a panel of a cathode ray tube front surface to be a diaphragm. CONSTITUTION:A drive part 2 is provided at the bottom of a front panel 7 disposed at the front surface of a cathode ray tube 1. The drive part 2 is obtained by adhering piezoelectric elements 3 and 4 and a pole plate 5 on the front panel 7 with an adhesive 6. In accordance with the size of the front panel 7, the piezoelectric elements 3 and 4 are laminated to secure power. When a sound signal is inputted to these piezoelectric elements 3 and 4, the compression stress and tensile stress develop on the piezoelectric elements 3 and 4 to distort them. The distortion is transmitted to the front panel 7 to vibrate it, and air is vibrated to emit a sound.

Description

【発明の詳細な説明】 産業上の利用分野 本発明はテレビジョン受像機に用いることのできる音響
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an audio device that can be used in a television receiver.

従来例の構成とその問題点 近年、テレビジョン受像機はその形状をコン７くクト化
する傾向が著しく、そうした傾向の中にあってスピーカ
の配置スペースが問題となっている。Conventional configurations and their problems In recent years, there has been a remarkable tendency for television receivers to become more compact in shape, and within this trend, the space for arranging speakers has become a problem.

又、コンパクトする為に前面にスピーカの配置スペース
がない場合側面にスピーカを配置すると・スピーカの指
向性の為に音質が良くないという欠点があった。In addition, if there is no space for a speaker on the front to make it compact, placing the speaker on the side has the disadvantage that the sound quality is poor due to the directivity of the speaker.

発明の目的 本発明の目的は、前面にスピーカを構成でき、なおかつ
、従来のコントロールパネル部にスピーカの配置スペー
スを必要としない音響装置を提供することである。OBJECTS OF THE INVENTION An object of the present invention is to provide an audio device in which a speaker can be configured on the front surface, and which does not require a space for arranging the speaker in the conventional control panel section.

発明の構成 本発明は、ブラウン管の前面に設けられたガラスあるい
は樹脂等の透明材料により形成された前面板の一部に圧
電素子を貼付け、この圧電素子に音声信号を加えること
により前面板を振動させ放声するようにしたものである
。Structure of the Invention The present invention provides a piezoelectric element attached to a part of a front plate made of a transparent material such as glass or resin provided on the front side of a cathode ray tube, and an audio signal applied to the piezoelectric element to vibrate the front plate. It was designed so that it would let out a loud voice.

実施例の説明 第１図、第２図に本発明の一実施例を示す。ブラウン管
１の前面に配置した前面パネル７の下部に駆動部２を有
する。この駆動部２は前面パネル７に接着剤６により圧
電素子３，４と極板５を接着したものである。前面パネ
ル７の大きさにより圧電素子３，４を積層してパワーを
確保する。この駆動部２、つまシ圧電素子３，４．に音
声（ｉｉ号を入力すると、圧電素子３と４に圧縮応力、
引張応力が発生して歪む。その歪が前面パネル７に伝わ
シ、前面パネル７が振動し、空気を振動させて放音する
ことになる。圧電素子３と４の組合せは同じ方向の歪が
発生するように組合わせる。DESCRIPTION OF EMBODIMENTS FIGS. 1 and 2 show an embodiment of the present invention. A drive unit 2 is provided at the bottom of a front panel 7 placed in front of the cathode ray tube 1. This drive unit 2 has piezoelectric elements 3 and 4 and an electrode plate 5 bonded to a front panel 7 with an adhesive 6. Depending on the size of the front panel 7, piezoelectric elements 3 and 4 are stacked to ensure power. This drive unit 2, the piezoelectric elements 3, 4 . When inputting voice (ii), compressive stress is applied to piezoelectric elements 3 and 4,
Tensile stress occurs and distortion occurs. The distortion is transmitted to the front panel 7, which vibrates, causing the air to vibrate and emit sound. The piezoelectric elements 3 and 4 are combined so that strain occurs in the same direction.

発明の効果 以上のように本発明によれば、ブラウン管前面のパネル
を振動板とするため、コンパクトなセッ゛トを実現する
ことができ、側面スピーカよりも音圧も高く、良い音質
を得ることができる。Effects of the Invention As described above, according to the present invention, since the front panel of the cathode ray tube is used as a diaphragm, a compact set can be realized, and the sound pressure is higher than that of side speakers, and good sound quality can be obtained. I can do it.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の音響装置の一実施例を示す平面図、第
２図はその要部拡大断面図である。 ３．４・・・・・・圧電素子、５・・・・・・極板、６
・・・・・・接着剤、７・・・・・・前面パネル。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名第１
図 第２図FIG. 1 is a plan view showing an embodiment of the acoustic device of the present invention, and FIG. 2 is an enlarged sectional view of the main part thereof. 3.4...Piezoelectric element, 5...Pole plate, 6
...Adhesive, 7...Front panel. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2

Claims (1)

【特許請求の範囲】[Claims] ブラウン管の前面に設けられたガラスあるいは樹脂等の
透明材料により形成された前面板の一部に圧電素子を貼
付けこの圧電素子に音声信号を含んだ信号を加えること
により上記圧電素子の歪を利用して上記前面板を振動さ
せるように構成したことを特徴とする音響装置。A piezoelectric element is pasted on a part of the front panel made of transparent material such as glass or resin, which is provided on the front of the cathode ray tube, and the distortion of the piezoelectric element is utilized by applying a signal including an audio signal to this piezoelectric element. An acoustic device characterized in that the front plate is configured to vibrate when
JP18400784A 1984-09-03 1984-09-03 Acoustic device Pending JPS6161598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18400784A JPS6161598A (en) 1984-09-03 1984-09-03 Acoustic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18400784A JPS6161598A (en) 1984-09-03 1984-09-03 Acoustic device

Publications (1)

Publication Number Publication Date
JPS6161598A true JPS6161598A (en) 1986-03-29

Family

ID=16145692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18400784A Pending JPS6161598A (en) 1984-09-03 1984-09-03 Acoustic device

Country Status (1)

Country Link
JP (1) JPS6161598A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400414A (en) * 1988-09-26 1995-03-21 Electronic-Werke Deutschland Gmbh Loudspeaker
NL1000275C2 (en) * 1995-05-02 1996-11-05 Hollandse Signaalapparaten Bv Acoustic vibration generator.
EP0760996A1 (en) * 1994-05-11 1997-03-12 Noise Cancellation Technologies, Inc. Multimedia personal computer with active noise reduction and piezo speakers
WO1997009852A3 (en) * 1995-09-02 1997-05-01 Verity Group Plc Visual display means incorporating loudspeakers
WO1999037118A1 (en) * 1998-01-16 1999-07-22 Sony Corporation Speaker and electronic apparatus using speaker
WO1999037121A1 (en) * 1998-01-20 1999-07-22 New Transducers Limited Active acoustic devices comprising panel members
WO2000002417A1 (en) * 1998-07-03 2000-01-13 New Transducers Limited Resonant panel-form loudspeaker
WO2000013464A1 (en) * 1998-08-28 2000-03-09 New Transducers Limited Loudspeakers comprising a resonant panel-form member
US6266426B1 (en) 1995-09-02 2001-07-24 New Transducers Limited Visual display means incorporating loudspeakers
GB2360901A (en) * 2000-03-29 2001-10-03 Nokia Mobile Phones Ltd A loudspeaker which uses an electronic display as a diaphragm
US7068800B2 (en) 1998-09-09 2006-06-27 Fujitsu Limited Speaker apparatus

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400414A (en) * 1988-09-26 1995-03-21 Electronic-Werke Deutschland Gmbh Loudspeaker
EP0760996A4 (en) * 1994-05-11 2001-02-14 Noise Cancellation Tech Multimedia personal computer with active noise reduction and piezo speakers
EP0760996A1 (en) * 1994-05-11 1997-03-12 Noise Cancellation Technologies, Inc. Multimedia personal computer with active noise reduction and piezo speakers
NL1000275C2 (en) * 1995-05-02 1996-11-05 Hollandse Signaalapparaten Bv Acoustic vibration generator.
WO1996035313A1 (en) * 1995-05-02 1996-11-07 Hollandse Signaalapparaten B.V. Acoustic vibration generator
WO1997009852A3 (en) * 1995-09-02 1997-05-01 Verity Group Plc Visual display means incorporating loudspeakers
US6266426B1 (en) 1995-09-02 2001-07-24 New Transducers Limited Visual display means incorporating loudspeakers
WO1999037118A1 (en) * 1998-01-16 1999-07-22 Sony Corporation Speaker and electronic apparatus using speaker
EP1414266A2 (en) * 1998-01-20 2004-04-28 New Transducers Limited Active acoustic devices
WO1999037121A1 (en) * 1998-01-20 1999-07-22 New Transducers Limited Active acoustic devices comprising panel members
EP1414266A3 (en) * 1998-01-20 2006-08-16 New Transducers Limited Active acoustic devices
WO2000002417A1 (en) * 1998-07-03 2000-01-13 New Transducers Limited Resonant panel-form loudspeaker
US7174025B2 (en) 1998-07-03 2007-02-06 New Transducers Limited Resonant panel-form loudspeaker
WO2000013464A1 (en) * 1998-08-28 2000-03-09 New Transducers Limited Loudspeakers comprising a resonant panel-form member
US6985596B2 (en) 1998-08-28 2006-01-10 New Transducers Limited Loudspeakers
US7068800B2 (en) 1998-09-09 2006-06-27 Fujitsu Limited Speaker apparatus
GB2360901A (en) * 2000-03-29 2001-10-03 Nokia Mobile Phones Ltd A loudspeaker which uses an electronic display as a diaphragm

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