JP2001189978A - Panel-type speaker - Google Patents
Panel-type speakerInfo
- Publication number
- JP2001189978A JP2001189978A JP2000077754A JP2000077754A JP2001189978A JP 2001189978 A JP2001189978 A JP 2001189978A JP 2000077754 A JP2000077754 A JP 2000077754A JP 2000077754 A JP2000077754 A JP 2000077754A JP 2001189978 A JP2001189978 A JP 2001189978A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- diaphragm
- display device
- type speaker
- exciter
- 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.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＤＭ方式のパネル
型スピーカに関するものであり、特に、表示装置と組合
せたパネル型スピーカに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel type speaker of a DM system, and more particularly to a panel type speaker combined with a display device.
【０００２】[0002]
【従来の技術】本出願人の先願に係わる特願平９ー５９
８８９号には、パネル型スピーカが開示されている。こ
のパネル型スピーカは、磁気回路とボイスコイルとから
構成されるエキサイターと、このエキサイターによって
励振される振動板とを備えている。このパネル型スピー
カは、従来のスピーカのように振動板が剛体として前後
に並進運動（ピストン運動）を行うのではなく、振動板
が撓み振動を行う。このことから、このパネル型スピー
カは、ＤＭ（ Distributed Mode ) 方式のスピーカ、あ
るいは、振動モード方式の平面スピーカとも称されてい
る。2. Description of the Related Art Japanese Patent Application No. 9-59 relating to the prior application of the present applicant.
No. 889 discloses a panel type speaker. The panel type speaker includes an exciter including a magnetic circuit and a voice coil, and a diaphragm excited by the exciter. In this panel type speaker, the diaphragm does not perform a translational motion (piston motion) back and forth as a rigid body as in a conventional speaker, but the diaphragm performs flexural vibration. For this reason, this panel type speaker is also called a DM (Distributed Mode) type speaker or a vibration mode type planar speaker.
【０００３】本出願人の他の先願に係わる特願平１０ー
１５０６４１号には、振動板の中にエキサイターを埋め
込んだ構造の両面型のパネル型スピーカが開示され、同
じく特願平１０ー３０７８７０号には複数の領域に分割
されたコア層から成る振動板のそれぞれにエキサイター
が取付けられたパネル型スピーカが開示されている。Japanese Patent Application No. 10-150641 related to another prior application of the present applicant discloses a double-sided panel type speaker having a structure in which an exciter is embedded in a diaphragm. Japanese Patent No. 307870 discloses a panel type speaker in which an exciter is attached to each of diaphragms composed of a core layer divided into a plurality of regions.
【０００４】[0004]
【発明が解決しようとする課題】上述のように、ＤＭ方
式のパネル型スピーカについては、本出願人によって既
に種々の新規な構造が開示されている。しかしながら、
このパネル型スピーカの振動板はその特徴である高音質
を実現するために比較的広い面積を必要とする。このた
め、液晶表示装置や、プラズマ表示装置などのように、
同様に比較的広い平面表示パネルを必要とする表示装置
と組合わせる場合、表示用と発音用のそれぞれに必要な
空間が過大になってしまうという問題がある。従って、
本発明の一つの目的は、表示装置と組合せても過大な空
間を必要とせず、小型・高音質でしかも構成が簡易で安
価なパネル型スピーカを提供することある。As described above, the present applicant has already disclosed various novel structures for the DM type panel type speaker. However,
The diaphragm of this panel-type speaker requires a relatively large area to realize the characteristic high sound quality. For this reason, like a liquid crystal display device or a plasma display device,
Similarly, when combined with a display device that requires a relatively wide flat display panel, there is a problem that the space required for each of the display and sound generation becomes excessively large. Therefore,
One object of the present invention is to provide an inexpensive panel-type speaker that is small in size, has high sound quality, has a simple configuration, and does not require an excessive space when combined with a display device.
【０００５】[0005]
【課題を解決するための手段】上記従来技術の課題を解
決するための本発明のパネル型スピーカは、磁気回路と
ボイスコイルとを含むエキサイターと、このエキサイタ
ーによって励振される平板状の振動板とを備えている。
そして、このパネル型スピーカの振動板は、液晶パネル
やプラズマ・パネルなどで構成される表示装置の表示面
を覆う光学フィルターを兼ねることによって表示空間と
音響発生空間とを共用させ、表示用と発音用に過大な空
間を必要とせず、高音質でしかも構成が簡易で安価なパ
ネル型スピーカを実現している。A panel type speaker according to the present invention for solving the above-mentioned problems of the prior art comprises an exciter including a magnetic circuit and a voice coil, and a flat diaphragm excited by the exciter. It has.
The diaphragm of the panel-type speaker also serves as an optical filter that covers the display surface of a display device composed of a liquid crystal panel, a plasma panel, or the like, so that the display space and the sound generation space are shared, and the sound is used for display and sound generation. This realizes an inexpensive panel-type speaker that does not require excessive space for use, has high sound quality, has a simple configuration, and is simple.
【０００６】[0006]
【発明の実施の形態】本発明の一つの好適な実施の形態
によれば、上記光学フィルタを兼ねる振動板は、前記表
示装置に着脱自在に取付けられる。According to one preferred embodiment of the present invention, the diaphragm also serving as the optical filter is detachably attached to the display device.
【０００７】本発明の他の好適な実施の形態によれば、
表示装置に着脱自在に取付けられる振動板は枠体に保持
され、この枠体の内部に音声増幅器が内蔵されることに
より高音質でしかも高出力のスピーカが実現される。According to another preferred embodiment of the present invention,
A diaphragm detachably attached to the display device is held by a frame, and a sound amplifier with high sound quality and high output is realized by incorporating an audio amplifier inside the frame.
【０００８】本発明の更に他の好適な実施の形態によれ
ば、上記エキサイターは、表示装置の外縁部分において
この表示装置の後方に配置され、このエキサイターと振
動板とは振動伝達用の棒状体によって連結されることに
より、一層の小型化が達成される。According to still another preferred embodiment of the present invention, the exciter is disposed behind the display device at an outer edge portion of the display device, and the exciter and the diaphragm are connected to a rod-shaped body for transmitting vibration. By the connection, further miniaturization is achieved.
【０００９】本発明の更に他の好適な実施の形態によれ
ば、表示装置はフロント照明型の液晶表示パネルで構成
され、上記パネル型スピーカの振動板がその端部に配置
された発光素子の発生した光を液晶表示装置の表面に導
くフロント照明板を兼ねることにより一層の小型化・低
廉化が実現される。According to still another preferred embodiment of the present invention, the display device comprises a front-illumination type liquid crystal display panel, and the diaphragm of the panel type speaker is provided at the end thereof. By also serving as a front illumination plate for guiding the generated light to the surface of the liquid crystal display device, further miniaturization and lower cost can be realized.
【００１０】[0010]
【実施例】図１は、本発明の一実施例のパネル型スピー
カ１０を据置き型の液晶表示装置２０と共に示す斜視図
である。この実施例のパネル型スピーカ１０は、光学フ
ィルタを兼ねた振動板１１と、この振動板１１の四方の
周辺部の裏面に取付けられたエキサイター１２ａ〜１２
ｃと、振動板１１をその周辺部において保持する枠体１
３と、この光学フィルタを兼ねた振動板１１を液晶表示
装置２０の表示面を覆うように表示装置に取付けるため
の取付け具１４と、コネクタ１５と、ケ−ブル１６とを
備えている。FIG. 1 is a perspective view showing a panel type speaker 10 according to one embodiment of the present invention together with a stationary liquid crystal display device 20. FIG. The panel-type speaker 10 of this embodiment includes a diaphragm 11 also serving as an optical filter, and exciters 12 a to 12 attached to the back surfaces of the four sides of the diaphragm 11.
c, and a frame 1 for holding the diaphragm 11 at a peripheral portion thereof
3, a fixture 14 for attaching the diaphragm 11 also serving as an optical filter to the display device so as to cover the display surface of the liquid crystal display device 20, a connector 15, and a cable 16.
【００１１】４個のエキサイター１２ａ〜１２ｄは、エ
キサイター１２ａによって代表して図２の断面図に示す
ように、マグネットＭ、インナーヨークＩＹ、アウター
ヨークＯＹ、ボイスコイルＶＣ及びサブパネルＳＰを備
えている。エキサイター１２ａのボイスコイルＶＣの前
端面は、光学フィルタを兼ねた振動板１１の裏面にサブ
パネルＳＰを介して接着によって固定されている。この
エキサイター１２ａの背面は、接着などによって枠体１
３に固定されている。枠体１３の内部には、必要に応じ
て、音声増幅器を内蔵することもできる。The four exciters 12a to 12d each include a magnet M, an inner yoke IY, an outer yoke OY, a voice coil VC, and a sub-panel SP, as shown in the cross-sectional view of FIG. The front end surface of the voice coil VC of the exciter 12a is fixed to the back surface of the diaphragm 11 also serving as an optical filter by bonding via a sub-panel SP. The back surface of the exciter 12a is
It is fixed to 3. An audio amplifier can be built in the frame 13 as needed.
【００１２】振動板１１は、アクリルやポリカーボネイ
トなどの樹脂を素材とし、内部に適宜な色素が含有され
たり、あるいは、表面に光学薄膜が形成されることによ
り、所望の光学フィルタ特性を発揮するように構成され
ている。また、この光学フィルタは表示画面以外の箇所
で発生し、この表示画面に入射する光に対する偏光フィ
ルタの機能を有していてもよい。この光学フィルタを兼
ねた振動板１１は、その周辺部分において、適宜な弾性
を有するクッション層１７を介在させながら枠体１３に
保持されている。The diaphragm 11 is made of a resin such as acrylic or polycarbonate and contains a suitable pigment inside, or an optical thin film is formed on the surface so as to exhibit desired optical filter characteristics. Is configured. Further, the optical filter may be generated in a portion other than the display screen, and may have a function of a polarizing filter for light incident on the display screen. The diaphragm 11 also serving as an optical filter is held by a frame 13 in a peripheral portion thereof with a cushion layer 17 having appropriate elasticity interposed therebetween.
【００１３】ボイスコイルＶＣに流れる音声周波数帯の
電流の強弱と極性とに応じてボイスコイルＶＣが前後に
（図中の左右に）振動する。このボイスコイルＶＣの前
端面には薄い円板形状のサブパネルＳＰが接着固定さ
れ、このサブパネルＳＰが振動板１１に接着剤や両面接
着テープなどを介して固定されている。従って、ボイス
コイルＶＣの左右への振動に伴って振動板１１に撓み振
動が励振される。この振動板１１に励振された撓み振動
によってこの振動板１１に接する空気中に疎密の層が励
振され、音が発生する。すなわち、エキサイター１２ａ
と振動板１１とによってＤＭ式のパネル型スピーカが形
成される。The voice coil VC vibrates back and forth (left and right in the figure) according to the strength and polarity of the current in the voice frequency band flowing through the voice coil VC. A thin disk-shaped sub-panel SP is adhered and fixed to the front end face of the voice coil VC, and the sub-panel SP is fixed to the diaphragm 11 via an adhesive or a double-sided adhesive tape. Accordingly, bending vibration is excited on the diaphragm 11 with the left and right vibrations of the voice coil VC. The sparse and dense layer is excited in the air in contact with the diaphragm 11 by the flexural vibration excited by the diaphragm 11 to generate sound. That is, the exciter 12a
The diaphragm 11 forms a DM type panel type speaker.
【００１４】上述した構造の４個のエキサイター１２ａ
〜１２ｄが、振動板１１の四方に取付けられ、周辺部分
から撓み振動が励振される。好適には、左側の２個のエ
キサイター１２ａと１２ｂからは左側の音Ｌが発生さ
れ、右側の２個のエキサイター１２ｃ，１２ｄからは右
側の音Ｒが発生されるという具合にステレオモードで動
作せしめられる。左右のエキサイターが発生した左右の
音は、振動板１１の中心部分を通過して互いに反対側に
伝播する。この際、各エキサイターで励振された音のう
ち高周波成分ほど大きな伝播損失を生ずるため、高周波
成分ほど反対側まで伝播し難くなる。The four exciters 12a having the structure described above
12d are attached to the four sides of the diaphragm 11, and bending vibration is excited from the peripheral portion. Preferably, the left exciter 12a and the left exciter 12b generate a left sound L, and the two right exciters 12c and 12d generate a right sound R. Can be The left and right sounds generated by the left and right exciters pass through the central portion of the diaphragm 11 and propagate to opposite sides. At this time, the higher the frequency component of the sound excited by each exciter, the greater the propagation loss, so the higher the frequency component, the more difficult it is to propagate to the opposite side.
【００１５】このように視聴者による左右の弁別能力が
高い高周波成分ほど、左右それぞれの発生された側に偏
って存在するようになるため、振動板１１が連続した単
体であってもステレオ動作機能が発揮される。このよう
に、振動板１１が光学フィルタを兼ねることにより、光
学フィルタ用と発音用とに個別に広い空間を割り当てる
必要がなくなり、オーディオ・ビィデオ装置の全体の大
型化が回避される。特に、表示画面とほぼ同一の広い振
動板が使用されるため、低周波成分の再現性が向上し、
ゲームや映画などの臨場感が向上するという利点があ
る。As described above, since the high frequency component having the higher left and right discriminating ability by the viewer exists more deviatedly on the side where the left and right are generated, even if the diaphragm 11 is a continuous single body, the stereo operation function is provided. Is exhibited. As described above, since the diaphragm 11 also serves as an optical filter, it is not necessary to individually allocate a large space for the optical filter and for the sound generation, thereby avoiding an increase in the size of the entire audio / video device. In particular, because a wide diaphragm almost the same as the display screen is used, the reproducibility of low frequency components is improved,
There is an advantage that the realism of games and movies is improved.
【００１６】同時に、振動板と光学フィルタの共通化に
伴って部品の材料費や、加工費や、組み立て費用が削減
され、全体の製造費用が安価になる。また、表示画面と
音源とが一致するため、視聴者はスピーカが表示装置の
左右に置かれている場合と比べてより自然な感じを受け
る。At the same time, with the use of the diaphragm and the optical filter in common, the material cost, processing cost, and assembly cost of parts are reduced, and the overall manufacturing cost is reduced. In addition, since the display screen matches the sound source, the viewer feels more natural than when the speakers are placed on the left and right sides of the display device.
【００１７】図３は、本発明の他の実施例のパネル型ス
ピーカ１０の構成を示す斜視図である。この実施例のパ
ネル型スピーカは、据置き型の表示装置ではなくパソコ
ンなどの携帯型の電子装置の液晶表示パネルに着脱自在
に取付けられる。本図中、図１と同一の参照符号を付し
た構成要素は、図１に関して既に説明した構成要素と同
一のものであり、これらについては重複する説明を省略
する。この例では、枠体１３の裏面の上下の縁にスポン
ジなどを素材とするクッション座１８，１９が付加され
ている。FIG. 3 is a perspective view showing the structure of a panel type speaker 10 according to another embodiment of the present invention. The panel-type speaker of this embodiment is detachably attached to a liquid crystal display panel of a portable electronic device such as a personal computer instead of a stationary display device. In this figure, the components denoted by the same reference numerals as those in FIG. 1 are the same as the components already described with reference to FIG. 1, and a duplicate description thereof will be omitted. In this example, cushion seats 18 and 19 made of sponge or the like are added to the upper and lower edges of the back surface of the frame 13.
【００１８】以上、エキサイタ１２ａ〜１２ｄーの裏面
を枠体１３に固定する構成を例示した。しかしながら、
これらのエキサイターの裏面を枠体１３に固定すること
なく自由端とする構成、すなわち、エキサイターのサブ
パネルを振動板に接着固定することにより、このエキサ
イターを振動板に宙づりの状態で取付ける構成とするこ
ともできる。The configuration in which the back surfaces of the exciters 12a to 12d are fixed to the frame 13 has been described above. However,
A configuration in which the back surfaces of these exciters are free ends without being fixed to the frame 13, that is, a configuration in which the exciters are attached to the diaphragm in a suspended state by adhesively fixing the sub-panel of the exciter to the diaphragm. Can also.
【００１９】図４は、本発明の他の実施例のパネル型ス
ピーカ１０の構成を示す部分側面図である。この実施例
のパネル型スピーカは、携帯電話器などの小型の携帯型
の電子装置のバックライト型（背景照明型）の液晶表示
パネル２０ａと一体に構成されている。本図中、図１と
同一の参照符号を付した構成要素は、図１に関して既に
説明した構成要素と同一のものであり、これらについて
は重複する説明を省略する。FIG. 4 is a partial side view showing the structure of a panel type speaker 10 according to another embodiment of the present invention. The panel type speaker of this embodiment is integrally formed with a backlight type (background illumination type) liquid crystal display panel 20a of a small portable electronic device such as a mobile phone. In this figure, the components denoted by the same reference numerals as those in FIG. 1 are the same as the components already described with reference to FIG. 1, and a duplicate description thereof will be omitted.
【００２０】この例では、適宜な個数設置されるエキサ
イターの一つを代表して図示されているエキサイター１
２ａが、液晶表示パネル２０ａの端部において、この液
晶表示パネル２０ａの後方に配置される。すなわち、液
晶表示パネル２０ａの裏面に取付けられた枠体１３ｂ
に、軟質ゴムや発泡プラスチックなどの比較的柔軟な弾
性素材で構成される弾性体層１５ａを介在させながらエ
キサイター１２ａが固定される。In this example, an exciter 1 shown as a representative of one of an appropriate number of exciters is provided.
2a is disposed at the end of the liquid crystal display panel 20a behind the liquid crystal display panel 20a. That is, the frame 13b attached to the back surface of the liquid crystal display panel 20a
Then, the exciter 12a is fixed with an elastic layer 15a made of a relatively soft elastic material such as soft rubber or foamed plastic interposed therebetween.
【００２１】このエキサイター１２ａと振動板１１との
間が円形断面形状の棒状体１４ａによって連結され、エ
キサイター１２ａで発生した振動がこの棒状体１４ａを
通して光学フィルタを兼ねる振動板１１に伝達される。
棒状体１４ａが連結される箇所の振動板１１の表面は、
軟質ゴムや発泡プラスチックなどの比較的柔軟な素材で
構成される弾性体層１６ａを介在させながら枠体１３ａ
に固定される。エキサイター１２ａで代表して図示され
るエキサイターの設置個数は、振動板の四隅にそれぞれ
１個ずつの計４個、あるいは、左右のそれぞれに１個ず
つの計２個等、必要な音響特性に応じて適宜な個数を選
択することができる。The exciter 12a and the diaphragm 11 are connected by a rod 14a having a circular cross section, and the vibration generated by the exciter 12a is transmitted to the diaphragm 11 also serving as an optical filter through the rod 14a.
The surface of the diaphragm 11 where the rods 14a are connected,
The frame 13a is interposed with an elastic layer 16a made of a relatively soft material such as soft rubber or foamed plastic.
Fixed to The number of exciters 12a, which are shown as representatives of the exciter 12a, depends on the required acoustic characteristics, such as a total of four exciters at each of the four corners of the diaphragm, or a total of two exciters at each of the left and right. To select an appropriate number.
【００２２】このように、エキサイター１２ａと振動板
１１との間を振動伝達用の棒状体１４ａで連結する構成
とすることにより、このエキサイターを振動板１１に直
接固定する構成に比べて振動板１１の寸法を小さくでき
る。この実施例の構造は、携帯電話機などの小型化が特
に必要な電子機器を一層小型化するうえで、特に有効で
ある。As described above, the structure in which the exciter 12a and the diaphragm 11 are connected to each other by the rod 14a for transmitting the vibration allows the diaphragm 11 to be fixed as compared with the structure in which the exciter is directly fixed to the diaphragm 11. Can be reduced in size. The structure of this embodiment is particularly effective in further reducing the size of electronic equipment such as a mobile phone which particularly requires downsizing.
【００２３】図５は、本発明の更に他の実施例のパネル
型スピーカ１０の構成を示す部分側面図である。この実
施例のパネル型スピーカは、図４の実施例のバックライ
ト型の液晶表示パネル２０ａをフロント照明型（前面照
明型）の液晶表示パネル２０ｂに置き換えると共に、こ
のフロント照明型の液晶表示パネル２０ｂに必要なフロ
ント照明板を振動板１１' に兼用させた構成となっい
る。本図中、図４と同一の参照符号を付した構成要素
は、図４に関して既に説明した構成要素と同一のもので
あり、これらについては重複する説明を省略する。FIG. 5 is a partial side view showing the structure of a panel speaker 10 according to still another embodiment of the present invention. The panel-type speaker of this embodiment replaces the backlight-type liquid crystal display panel 20a of the embodiment of FIG. 4 with a front-illumination-type (front-illumination-type) liquid-crystal display panel 20b. The front illuminating plate required for the above is also used as the diaphragm 11 '. In this figure, the components denoted by the same reference numerals as those in FIG. 4 are the same as the components already described with reference to FIG. 4, and a duplicate description thereof will be omitted.
【００２４】振動板１１' の端部に設置されたランプや
フォトダイオードなどで構成される発光素子１７ａから
振動板１１' の内部に照明光が入射される。この振動板
１１' は、透明なアクリルなどを素材とし、表示側には
反射防止膜が形成され、光学フィルタとして機能する。
振動板１１' の裏面、すなわち液晶表示パネル２０ｂと
対向する側には、エッチングなどによって粗面が形成さ
れる。振動板１１' の内部を伝播する照明光の一部は、
上記振動板１１' の裏側に形成された粗面で乱反射さ
れ、照明光として液晶表示パネル２０の前面に入射す
る。Illumination light enters the inside of the diaphragm 11 'from a light emitting element 17a, such as a lamp or a photodiode, provided at the end of the diaphragm 11'. The vibration plate 11 'is made of a material such as transparent acryl, and has an anti-reflection film formed on the display side to function as an optical filter.
A rough surface is formed on the back surface of the diaphragm 11 ', that is, on the side facing the liquid crystal display panel 20b by etching or the like. A part of the illumination light propagating inside the diaphragm 11 '
The light is irregularly reflected by the rough surface formed on the back side of the vibration plate 11 ′, and enters the front surface of the liquid crystal display panel 20 as illumination light.
【００２５】この液晶表示パネル２０ｂの前面に入射し
た照明光は、この液晶表示パネル２０ｂ上のピクセル単
位で制御される反射率の違いに応じた強度の反射光とな
って振動板１１' の表面側に形成された光学フィルタを
通して振動板１１' の前方に放射され、反射光の強弱か
ら成る画像を感得させる。The illumination light incident on the front surface of the liquid crystal display panel 20b becomes reflected light having an intensity corresponding to the difference in the reflectance controlled on a pixel-by-pixel basis on the liquid crystal display panel 20b and becomes the surface of the diaphragm 11 '. The light is radiated in front of the diaphragm 11 'through the optical filter formed on the side, and an image composed of the intensity of reflected light is perceived.
【００２６】このように、振動板１１' に、光学フィル
タだけでなくフロント照明板をも兼用させることによ
り、表示装置としてバックライト照明機構が不要なフロ
ント照明型の構成を採用することが可能になり、表示・
音響装置全体として一層の小型化と低廉化が実現され
る。As described above, by using not only an optical filter but also a front illuminating plate for the diaphragm 11 ', a front illuminating type configuration which does not require a backlight illuminating mechanism as a display device can be adopted. Display
Further reduction in size and cost can be realized as a whole of the acoustic device.
【００２７】[0027]
【発明の効果】以上詳細に説明したように、本発明のパ
ネル型スピーカは、その振動板が表示装置の画面を覆う
光学フィルタを兼ねるように構成されているため、この
パネル型スピーカを表示装置と組合わせても過大な空間
を必要とせず、小型・高音質でしかも安価なオーディオ
・ビデオ装置を提供できるという利点がある。As described in detail above, the panel type speaker of the present invention is configured so that its diaphragm also serves as an optical filter for covering the screen of the display device. There is an advantage that it is possible to provide an inexpensive audio / video apparatus which does not require an excessive space even when combined with the apparatus, and which is small in size and high in sound quality.
【００２８】また、本発明の好適な実施例によれば、エ
キサイターが表示装置の後方に配置され、このエキサイ
ターと振動板とが振動伝達用の棒状体によって連結され
る構成であるから、光学フィルタを兼ねた振動板が一層
小型になり、表示機能と音響出力機能とを兼ね備えた装
置の一層の小型化が実現される。Further, according to the preferred embodiment of the present invention, the exciter is arranged behind the display device, and the exciter and the diaphragm are connected by the vibration transmitting rod-shaped member. The size of the diaphragm having both the display function and the sound output function can be further reduced.
【００２９】本発明の更に他の好適な実施の形態によれ
ば、フロント照明型の液晶表示パネルのフロント照明板
を兼ねる構成であるから、バックライト照明機構が不要
なフロント照明型の液晶パネルを容易に構成でき、表示
機能と音響出力機能とを兼ね備えた装置の一層の小型化
が実現される。According to still another preferred embodiment of the present invention, the front illumination type liquid crystal display panel is also used as a front illumination plate, so that a front illumination type liquid crystal panel which does not require a backlight illumination mechanism is provided. A device that can be easily configured and has both a display function and a sound output function can be further reduced in size.
【図１】本発明の一実施例のパネル型スピーカの構成を
液晶表示装置と共に示す斜視図である。FIG. 1 is a perspective view showing a configuration of a panel type speaker according to one embodiment of the present invention together with a liquid crystal display device.
【図２】図１中のエキサイター１２ａ〜１２ｄをエキサ
イター１２ａで代表して示す断面図である。FIG. 2 is a sectional view showing exciters 12a to 12d in FIG. 1 as representative of the exciters 12a.
【図３】本発明の他の実施例のパネル型スピーカの構成
を、パソコンなどの携帯用電子装置の液晶表示パネルと
共に示す斜視図である。FIG. 3 is a perspective view showing a configuration of a panel speaker according to another embodiment of the present invention, together with a liquid crystal display panel of a portable electronic device such as a personal computer.
【図４】本発明の更に他の実施例のパネル型スピーカの
構成を、携帯電話機などの携帯用電子装置のバックライ
ト型の液晶表示パネルと共に示す斜視図である。FIG. 4 is a perspective view showing a configuration of a panel-type speaker according to still another embodiment of the present invention, together with a backlight-type liquid crystal display panel of a portable electronic device such as a mobile phone.
【図５】本発明の更に他の実施例のパネル型スピーカの
構成を、携帯電話機などの携帯用電子装置のフロント照
明型の液晶表示パネルと共に示す斜視図である。FIG. 5 is a perspective view showing a configuration of a panel-type speaker according to still another embodiment of the present invention, together with a front-illuminated liquid crystal display panel of a portable electronic device such as a mobile phone.
10 パネル型スピーカ 11 光学フィルタを兼ねる振動板 11' フロント照明型の液晶表示パネルの光学フィル
タとフロント照明板とを兼ねる振動板 12a-12d エキサイター 14a 振動伝達用棒状体 17a 発光素子 20 表示装置 20a バックライト型の液晶表示パネル 20b フロント照明型の液晶表示パネル M マグネット IY インナーヨーク OY アウターヨーク VC ボイスコイル SP サブパネル10 Panel-type speaker 11 Vibration plate that also functions as an optical filter 11 'Vibration plate that also functions as an optical filter of a front illumination type liquid crystal display panel and a front illumination plate 12a-12d Exciter 14a Vibration transmission rod 17a Light emitting element 20 Display device 20a Back Light type LCD panel 20b Front illumination type LCD panel M magnet IY Inner yoke OY Outer yoke VC Voice coil SP Sub panel
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０４Ｒ 5/02 Ｈ０４Ｒ 7/02 Ｄ 7/02 7/04 7/04 Ｇ０２Ｆ 1/1335 ５３０ Ｆターム(参考） 2H091 FA08X FA23X FA37X FA45X FB02 FC26 FD06 GA17 LA03 LA11 LA13 5D016 AA01 AA13 EC02 GA03 5D017 AA04 AA09 AA10 AE22 AE24 AE30 5G435 AA18 BB06 BB12 EE22 LL03 LL07 LL08 LL12 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H04R 5/02 H04R 7/02 D 7/02 7/04 7/04 G02F 1/1335 530 F term (reference 2H091 FA08X FA23X FA37X FA45X FB02 FC26 FD06 GA17 LA03 LA11 LA13 5D016 AA01 AA13 EC02 GA03 5D017 AA04 AA09 AA10 AE22 AE24 AE30 5G435 AA18 BB06 BB12 EE22 LL03 LL07 LL08 LL12 LL08 LL12
Claims (6)
ターと、このエキサイターによって励振される平板状の
振動板とを備えた振動モード（ＤＭ）方式のパネル型ス
ピーカであって、前記振動板は表示装置の表示面を覆う
光学フィルタを兼ねたことを特徴とするパネル型スピー
カ。1. A panel type speaker of a vibration mode (DM) system comprising: an exciter including a magnetic circuit and a voice coil; and a plate-like diaphragm excited by the exciter. A panel-type speaker, which also serves as an optical filter for covering a display surface of the device.
脱自在に取付けられることを特徴とするパネル型スピー
カ。2. The panel-type speaker according to claim 1, wherein the diaphragm serving also as the optical filter is detachably attached to the display device.
保持され、この枠体の内部に音声増幅器が内蔵されたこ
とを特徴とするパネル型スピーカ。3. The panel-type speaker according to claim 2, wherein the diaphragm detachably attached to the display device is held by a frame, and an audio amplifier is built in the frame.
この表示装置の後方に配置され、このエキサイターと前
記振動板とは振動伝達用の棒状体によって連結されたこ
とを特徴とするパネル型スピーカ。4. The display device according to claim 1, wherein the exciter is disposed behind the display device at an outer edge portion of the display device, and the exciter and the diaphragm are connected by a rod for transmitting vibration. Characteristic panel type speaker.
ら成るパネル型表示装置であることを特徴とするパネル
型スピーカ。5. The panel-type speaker according to claim 1, wherein the display device is a panel-type display device including a liquid crystal display device or a plasma display device.
り、前記振動板はその端部に配置された発光素子が発生
した光を前記液晶表示パネルの前面に導くフロント照明
板を兼ねたことを特徴とするパネル型スピーカ。6. The liquid crystal display panel according to claim 1, wherein the display device is a front-illumination type liquid crystal display panel, and the diaphragm emits light generated by a light emitting element disposed at an end thereof. A panel-type speaker, which also serves as a front lighting plate leading to the front of the panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000077754A JP4381548B2 (en) | 1999-10-18 | 2000-03-15 | Panel type speaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11-294895 | 1999-10-18 | ||
| JP29489599 | 1999-10-18 | ||
| JP2000077754A JP4381548B2 (en) | 1999-10-18 | 2000-03-15 | Panel type speaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001189978A true JP2001189978A (en) | 2001-07-10 |
| JP4381548B2 JP4381548B2 (en) | 2009-12-09 |
Family
ID=26560029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000077754A Expired - Lifetime JP4381548B2 (en) | 1999-10-18 | 2000-03-15 | Panel type speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4381548B2 (en) |
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