JP2008042619A - Image display device - Google Patents

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JP2008042619A
JP2008042619A JP2006215623A JP2006215623A JP2008042619A JP 2008042619 A JP2008042619 A JP 2008042619A JP 2006215623 A JP2006215623 A JP 2006215623A JP 2006215623 A JP2006215623 A JP 2006215623A JP 2008042619 A JP2008042619 A JP 2008042619A
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speaker
diaphragm
diaphragms
image display
display device
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JP4627747B2 (en
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Akihisa Suzuki
晶久 鈴木
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Sharp Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device which can obtain high sound pressure in a saved space and is very suitable without any image disturbance. <P>SOLUTION: Speaker parts 2 includes: first diaphragms 21b; second diaphragms 21c; third diaphragms 21d; and a vibration means 23 for vibrating the diaphragms 21. The speaker parts 2 are arranged to face each other at both the sides of a substantially cylindrically formed speaker frame 1, so as to allow the right and left diaphragms 21 to be alternately arranged. The speaker frame 1 includes sound output holes 11 for outputting sound to an external part from parts between the respective diaphragms 21. Consequently, a speaker device A is constituted. The speaker device A with the constitution is internally mounted on an image display device body composed of a liquid crystal TV. Thus, vibrations generated from the respective speaker parts 2 are canceled each other, so that the high sound pressure is obtained with reduced space, while extremely reducing the vibrations to be the cause of the image disturbance. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はスピーカー装置を備えた画像表示装置に関する。   The present invention relates to an image display device provided with a speaker device.

液晶テレビやスピーカー装置を備えた液晶パネル等の画像表示装置に用いられるスピーカー装置は、画像表示装置自体が薄型ともあって高品位の音質が得られるスピーカー装置を組み込むことが極めて難しい。   A speaker device used in an image display device such as a liquid crystal television or a liquid crystal panel provided with a speaker device is extremely difficult to incorporate a speaker device that can obtain high-quality sound because the image display device itself is thin.

ここで、小口径であっても十分な駆動範囲と耐入力を得ることにより低音再生を可能にする、としたスピーカー装置を例示すると、このスピーカ装置は、マグネットの上下部にトッププレートとボトムプレートを設置し、外周にヨークを設置して上下部磁気ギャップを形成し、上下部ボイスコイルをこれらの磁気ギャップに半分オフセットした状態で配置し、振動板をデュアルギャップ用ボイスコイルの上部に載置し、これらを上下部ダンパーで支持しているものがある（例えば特許文献１参照）。
特開平９−１８２１８８号公報（第１頁、図１） Here, an example of a speaker device that enables low-frequency reproduction by obtaining a sufficient driving range and input resistance even with a small diameter is shown. This speaker device has a top plate and a bottom plate on the upper and lower portions of the magnet. The upper and lower voice coils are placed half offset from these magnetic gaps, and the diaphragm is placed on top of the dual gap voice coil. However, there is one in which these are supported by upper and lower dampers (see, for example, Patent Document 1).
JP-A-9-182188 (first page, FIG. 1)

仮に、上記した先行のスピーカー装置を上記した画像表示装置に組み込んだ場合、鳴音させる部材である振動板が旧来と変わらず一枚であるため、性能の向上には限界があった。
しかも、液晶を用いた画像表示装置は、装置に振動を与えると画像が乱れやすい。これは、そもそも液晶ディスプレイは、２枚のガラスの中に電極・液晶が縦横に配置され、夫々の電極に入力する信号をコントロールして、液晶分子の向きを変えることで光の通過を制御している。仮に外力等による振動がガラスに伝わるとガラスそのものが振動して、２枚のガラスの間隔が部位によって時間的に変化してしまう。
そうなると、ガラス間に充填された液晶分子の向きが変化することになり、その結果、画像が乱れてしまうのである。 If the above-described preceding speaker device is incorporated in the above-described image display device, there is a limit to improvement in performance because there is only one diaphragm that is a member for sounding, as before.
In addition, an image display device using liquid crystal tends to be disturbed when vibration is applied to the device. In the first place, the liquid crystal display has electrodes and liquid crystals arranged vertically and horizontally in two pieces of glass, and controls the signal input to each electrode and controls the passage of light by changing the direction of the liquid crystal molecules. ing. If vibration due to an external force or the like is transmitted to the glass, the glass itself vibrates and the interval between the two glasses changes with time depending on the part.
As a result, the orientation of the liquid crystal molecules filled between the glasses changes, and as a result, the image is disturbed.

したがって、液晶を用いた画像表示装置にスピーカー装置を組み込む場合、より性能の良い（高音圧）のスピーカー装置を組み込むことで、返って、大きな振動を液晶ディスプレイに与えることになり、上記したスペース的な問題点の他に、高品位の音質が得られるスピーカー装置を組み込むことが極めて難しかった。   Therefore, when a speaker device is incorporated into an image display device using liquid crystal, incorporating a speaker device with better performance (high sound pressure) returns a large vibration to the liquid crystal display. In addition to these problems, it has been extremely difficult to incorporate a speaker device that can provide high-quality sound quality.

そこで本発明は、このような状況に鑑みてなされたものであり、上記問題点を解決できる画像表示装置を提供することを目的とする。   Accordingly, the present invention has been made in view of such a situation, and an object thereof is to provide an image display apparatus capable of solving the above-described problems.

上記技術課題を達成するために、本発明にかかる画像表示装置は、下記の技術的手段を講じた。
すなわち、本発明にかかる画像表示装置は、スピーカー装置を備えた画像表示装置であって、前記スピーカー装置は、振動板と、該振動板と係合され前記振動板を起振させる振動手段とを備えてなるスピーカー部が、略筒状に形成されたスピーカーフレームの両側に対向配置されてなり、前記スピーカーフレームは、前記振動板同士の間から外部に音声を出力させる音声出力孔が設けられてなることを特徴とする。
また、本発明にかかる画像表示装置は、略筒状に形成されたスピーカーフレーム内に所定間隔をおいて並設された複数の振動板が振動杆を介して接続され、その複数の前記振動板のうち、一端に配置された振動板と係合され前記振動板を起振させる振動手段が前記スピーカーフレームに支持されて、夫々の前記振動板が同調可能に構成されてなるスピーカー部が、前記スピーカーフレームの両側に対向配置されたスピーカー装置を備えた画像表示装置であって、前記スピーカー部は、前記振動手段が係合された前記振動板以外の前記振動板に、対向配置された一方の前記振動杆を挿通させる連通孔が設けられて、夫々の前記スピーカー部を構成する夫々の複数の前記振動板が交互に配置されて、前記スピーカーフレームの両側に当該スピーカー部が対向配置され、前記スピーカーフレームは、交互に配置された複数の前記振動板同士の間から外部に音声を出力させる音声出力孔が設けられていることを特徴とする。 In order to achieve the above technical problem, the image display apparatus according to the present invention has the following technical means.
That is, the image display device according to the present invention is an image display device including a speaker device, and the speaker device includes a diaphragm and a vibration unit that is engaged with the diaphragm and vibrates the diaphragm. The speaker part provided is arranged opposite to both sides of a substantially cylindrical speaker frame, and the speaker frame is provided with an audio output hole for outputting audio from between the diaphragms to the outside. It is characterized by becoming.
In the image display device according to the present invention, a plurality of diaphragms arranged in parallel at a predetermined interval in a speaker frame formed in a substantially cylindrical shape are connected via a vibration rod, and the plurality of diaphragms Among them, a speaker unit that is engaged with a vibration plate disposed at one end and that vibrates the vibration plate is supported by the speaker frame, and each of the vibration plates is configured to be tuned. An image display device including a speaker device disposed opposite to both sides of a speaker frame, wherein the speaker unit is disposed opposite to the diaphragm other than the diaphragm engaged with the vibration means. A communication hole through which the vibration rod is inserted is provided, and the plurality of diaphragms constituting each of the speaker units are alternately arranged, and the speaker is arranged on both sides of the speaker frame. Parts are opposed, the speaker frame, characterized in that the sound output holes for outputting sound to the outside from between the plurality of vibrating plates are arranged alternately is provided.

本発明によれば、振動板と、その振動板と係合され振動板を起振させる振動手段とを備えてなるスピーカー部を、略筒状に形成され音声出力孔を設けたスピーカーフレームの両側に対向配置してスピーカー装置を構成し、そのスピーカー装置を画像表示装置に組み込んだから、スピーカー部夫々から発生した振動が相殺されて振動を大幅に低減することができる。したがって、当該スピーカー装置を、液晶を用いた画像表示装置に組み込んでも画像を乱すことがない。   According to the present invention, the speaker unit comprising the diaphragm and the vibration means that is engaged with the diaphragm and vibrates the diaphragm is formed on both sides of the speaker frame that is formed in a substantially cylindrical shape and provided with an audio output hole. Since the speaker device is configured so as to be opposed to each other and the speaker device is incorporated in the image display device, vibrations generated from the respective speaker portions are canceled out, and the vibrations can be greatly reduced. Therefore, even if the speaker device is incorporated in an image display device using liquid crystal, the image is not disturbed.

また、スピーカー部を構成する振動板を複数で構成し、対向配置した夫々の振動板を交互に配置するようにしたから、省スペースでもって更に高音圧を得ることができる上に、スピーカー部夫々から発生した振動が相殺されて振動を大幅に低減することができる。したがって、高音圧を得つつ画像の乱れがない極めて好適な画像表示装置を提供できる。   In addition, since a plurality of diaphragms constituting the speaker unit are configured and the opposed diaphragms are alternately arranged, a higher sound pressure can be obtained with a small space, and each speaker unit can be obtained. The vibration generated from the above is canceled out and the vibration can be greatly reduced. Therefore, it is possible to provide a very suitable image display device that obtains high sound pressure and has no image distortion.

次に本発明にかかる画像表示装置の実施の形態について、添付図面を参照しながら説明する。
本実施の形態にかかる画像表示装置は、図１に示すように、スピーカーフレーム１と一対のスピーカー部２とを備えて構成されたスピーカー装置Ａと、液晶テレビからなる画像表示装置本体Ｂとを備えて構成されている。なお、画像表示装置本体Ｂは、周知の構造のものであるため詳細な説明は省略し、本発明の要部であるスピーカー装置Ａを図２及び図３を参照しながら詳述する。 Next, embodiments of an image display apparatus according to the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the image display device according to the present embodiment includes a speaker device A configured to include a speaker frame 1 and a pair of speaker units 2, and an image display device main body B including a liquid crystal television. It is prepared for. Since the image display device main body B has a well-known structure, a detailed description thereof is omitted, and the speaker device A, which is a main part of the present invention, will be described in detail with reference to FIGS.

スピーカーフレーム１は、薄板状部材でもって両端部が略すり鉢状に形成されると共に中間部が略筒状に形成されている。このスピーカーフレーム１は、その内部に後述する複数の振動板２１が並設されるが、その振動板２１同士間となる所要位置に夫々の振動板２１から外部に音声が出力されるように長孔状の音声出力孔１１が複数開口されている。   The speaker frame 1 is a thin plate-like member, and both end portions are formed in a substantially mortar shape, and the intermediate portion is formed in a substantially cylindrical shape. The speaker frame 1 is provided with a plurality of diaphragms 21 which will be described later in parallel. The speaker frame 1 is long so that sound is output from the respective diaphragms 21 to a required position between the diaphragms 21. A plurality of hole-like sound output holes 11 are opened.

また、略すり鉢状に形成された両端部の傾斜面には後述する夫々の第１振動板２１ｂの音抜け用孔１２（空気抜け用孔）が設けられ、略すり鉢状に形成された一方側の端部の端面には、後述する筒部２３ｃが遊挿される開口部１３が設けられている。   In addition, the inclined surfaces of both end portions formed in a substantially mortar shape are provided with sound escape holes 12 (air escape holes) of each first diaphragm 21b described later, and one side formed in a substantially mortar shape. An opening 13 is provided on the end surface of the end of the cylinder.

スピーカー部２は、振動板２１と、振動杆２２と、振動手段２３とを備えて構成されている。   The speaker unit 2 includes a vibration plate 21, a vibration rod 22, and vibration means 23.

振動板２１は、スピーカーフレーム１の略すり鉢状に形成された端部に配設され、そのスピーカーフレーム１の略すり鉢状の頂部にエッジ２１ａを介して接続された左右の第１振動板２１ｂと、その第１振動板２１ｂから所要の間隔をおいてエッジ２１ａを介してスピーカーフレーム１内壁に接続された左右の第２振動板２１ｃと、その第２振動板２１ｃから所要の間隔をおいてエッジ２１ａを介してスピーカーフレーム１内壁に接続された左右の第３振動板２１ｄと備えてなる。   The diaphragm 21 is disposed at the end of the speaker frame 1 formed in a substantially mortar shape, and the left and right first diaphragms 21b connected to the substantially mortar-shaped top of the speaker frame 1 via an edge 21a. The left and right second diaphragms 21c connected to the inner wall of the speaker frame 1 via the edge 21a with a predetermined distance from the first diaphragm 21b, and the edge with a predetermined distance from the second diaphragm 21c The left and right third diaphragms 21d are connected to the inner wall of the speaker frame 1 through 21a.

これら左右の第１振動板２１ｂ、左右の第２振動板２１ｃ、左右の第３振動板２１ｄの配置関係は、図示したように、左の第１振動板２１ｂと左の第２振動板２１ｃとの間に右の第３振動板２１ｄが配置され、左の第２振動板２１ｃと左の第３振動板２１ｄとの間に右の第２振動板２１ｃが配置され、そして右端に右の第１振動板２１ｂが配置されており、後述する振動杆２２を挿通させる挿通孔２１ｅが左右の第２振動板２１ｃと左右の第３振動板２１ｄの夫々に設けられている。この挿通孔２１ｅは、可能な限り振動板２１の中心寄りにして一箇所であることが好ましいが、２個所、あるいは、３個所にする場合は、等配となるような配置とすることが好適である（なお、図示は中心寄りにして一箇所である場合を誇張表現して中心からずれた位置に記載してある）。なお、これら左右の第１〜第３振動板２１ｄは、平坦状に形成されている。   As shown in the drawing, the left and right first diaphragm 21b, the left and right second diaphragm 21c, and the left and right third diaphragm 21d are arranged so that the left first diaphragm 21b and the left second diaphragm 21c. The right third diaphragm 21d is disposed between the left second diaphragm 21c and the left third diaphragm 21d, and the right second diaphragm 21c is disposed at the right end. One diaphragm 21b is disposed, and insertion holes 21e through which a vibration rod 22 described later is inserted are provided in each of the left and right second diaphragms 21c and the left and right third diaphragms 21d. This insertion hole 21e is preferably as close to the center of the diaphragm 21 as possible, but in the case of two places or three places, it is preferable to have an even arrangement. (In the drawing, the case where there is only one place closer to the center is exaggerated and described at a position shifted from the center). The left and right first to third diaphragms 21d are formed in a flat shape.

振動杆２２は、第１振動板２１ｂと第２振動板２１ｃとを、また、第２振動板２１ｃと第３振動板２１ｄとを結ぶように、対向配置されたスピーカー部２の第２振動板２１ｃと第３振動板２１ｄに形成された挿通孔２１ｅを介して夫々架設された棒状部材であり、後述する振動手段２３によって起振された第１振動板２１ｂと、第２振動板２１ｃ及び第３振動板２１ｄとが同調するようになっている。   The diaphragm 22 has the first diaphragm 21b and the second diaphragm 21c, and the second diaphragm of the speaker unit 2 disposed so as to connect the second diaphragm 21c and the third diaphragm 21d. 21c and a third member 21d are rod-like members installed through insertion holes 21e formed in the third diaphragm 21d. The first diaphragm 21b, the second diaphragm 21c, and the second diaphragm 21 The three diaphragms 21d are synchronized with each other.

振動手段２３は、拡径された一端側が第１振動板２１ｂのエッジ２１ａと接続されたテーパー部２３ｂとそのテーパー部２３ｂと接続された筒部２３ｃとで構成された振動伝達部２３ａと、テーパー部２３ｂと筒部２３ｃとの交差部から張り出すように設けられ外周部がスピーカーフレーム１に接続されたダンパー２３ｄと、筒部２３ｃの外周に巻回されたボイスコイル２３ｅと、略すり鉢状に形成された一方側のスピーカーフレーム１端面に設けられた開口部１３を中心にして、そのスピーカーフレーム１端面に取り付けられた略円筒状のマグネット２３ｆと、そのマグネット２３ｆの終端面と接続されると共に筒部２３ｃに遊挿された断面視略T字状のポール２３ｇとを備えてなり、スピーカーフレーム１を挟んでその両側に対向配置されている。   The vibration means 23 includes a vibration transmitting portion 23a formed of a tapered portion 23b whose one end side whose diameter has been increased is connected to the edge 21a of the first diaphragm 21b, and a cylindrical portion 23c connected to the tapered portion 23b, and a tapered shape. A damper 23d provided so as to project from the intersection of the portion 23b and the tube portion 23c and having an outer peripheral portion connected to the speaker frame 1, a voice coil 23e wound around the outer periphery of the tube portion 23c, and a substantially mortar shape Centering on the formed opening 13 provided on the end surface of the speaker frame 1 on one side, a substantially cylindrical magnet 23f attached to the end surface of the speaker frame 1 is connected to the end surface of the magnet 23f. It is provided with a substantially T-shaped pole 23g in section view inserted loosely into the tube portion 23c, and is opposed to both sides of the speaker frame 1 ing.

以上のように構成されたスピーカー装置Ａは、液晶テレビからなる画像表示装置本体Ｂに内装される。
そして、対向配置された夫々のボイスコイル２３ｅに電気信号（音声信号）を流すことにより、固定された磁石に対してボイスコイル２３ｅが前後し、それが、振動伝達部２３ａ、第１振動板２１ｂ、振動杆２２、第２振動板２１ｃ、第３振動板２１ｄとに伝播する。
このようにして、第１振動板２１ｂ、第２振動板２１ｃ、第３振動板２１ｄの夫々が前後に振動して音が発生し、発生した音が音声出力孔１１を介して外部に鳴音する。このとき、スピーカー部２夫々から発生した振動が相殺されて振動が大幅に低減する。 The speaker device A configured as described above is housed in an image display device main body B composed of a liquid crystal television.
The voice coil 23e moves back and forth with respect to the fixed magnet by flowing an electric signal (sound signal) through each of the opposed voice coils 23e, which are the vibration transmitting portion 23a and the first diaphragm 21b. , And propagates to the vibrating bar 22, the second diaphragm 21c, and the third diaphragm 21d.
In this way, each of the first diaphragm 21b, the second diaphragm 21c, and the third diaphragm 21d vibrates back and forth to generate sound, and the generated sound is generated outside through the sound output hole 11. To do. At this time, the vibration generated from each of the speaker units 2 is canceled and the vibration is greatly reduced.

このように本実施の形態にかかる画像表示装置に内装されるスピーカー装置Ａは、略筒状に形成されたスピーカーフレーム１の両側に、第１振動板２１ｂ、第２振動板２１ｃ、第３振動板２１ｄとそれらの振動板２１を起振させる振動手段２３とを備えてなるスピーカー部２を、左右の振動板２１が交互となるように対向配置し、スピーカーフレーム１に振動板２１同士の間から外部に音声を出力させる音声出力孔１１を設けたから、省スペースでもって高音圧を得ることができる上に、スピーカー部２夫々から発生した振動が相殺されて振動を大幅に低減することができる。したがって、高音圧を得つつ画像の乱れがない極めて好適な画像表示装置を提供できる。   As described above, the speaker device A installed in the image display device according to the present embodiment has the first diaphragm 21b, the second diaphragm 21c, and the third diaphragm on both sides of the speaker frame 1 formed in a substantially cylindrical shape. The speaker unit 2 including the plates 21d and the vibration means 23 that vibrates the diaphragms 21 is disposed to face each other so that the left and right diaphragms 21 are alternately arranged. Since the sound output hole 11 for outputting sound from the outside to the outside is provided, high sound pressure can be obtained with a small space, and vibration generated from each of the speaker portions 2 is canceled and vibration can be greatly reduced. . Therefore, it is possible to provide a very suitable image display device that obtains high sound pressure and has no image distortion.

以上、具体的な実施の形態について説明したが、本発明は上記実施の形態に限定されず、発明の要旨を変更しない範囲で適宜変更して実施できることは言うまでもない。   Although specific embodiments have been described above, the present invention is not limited to the above-described embodiments, and it is needless to say that the embodiments can be appropriately modified and implemented without changing the gist of the invention.

例えば、本実施の形態では、左右の振動板２１の数を夫々３つにしているが、左右の振動板２１の数を夫々一つ、すなわち、スピーカーフレーム１を共用してスピーカー部２を対向配置（したがって振動杆２２を通す挿通孔２１ｅは不要となる）したり、左右の振動板２１の数を上記した３つ以外の複数で構成しても良い。
また、本実施の形態では、スピーカーフレーム１を略円筒状のものを例示しているが、矩形体状のものでも良い。 For example, in this embodiment, the number of left and right diaphragms 21 is three, but the number of left and right diaphragms 21 is one, that is, the speaker frame 1 is shared and the speaker unit 2 is opposed. Arrangement (therefore, the insertion hole 21e through which the vibration rod 22 is passed becomes unnecessary), or the number of left and right diaphragms 21 may be a plurality other than the above three.
Further, in the present embodiment, the speaker frame 1 is illustrated as having a substantially cylindrical shape, but may be a rectangular shape.

本実施の形態にかかる画像表示装置の概略を示した正面図である。It is the front view which showed the outline of the image display apparatus concerning this Embodiment. スピーカー装置の正面図である。It is a front view of a speaker apparatus. 同、縦断側面図である。FIG.

符号の説明Explanation of symbols

Ａ スピーカー装置
Ｂ 画像表示装置本体
１ スピーカーフレーム
１１ 音声出力孔
１２ 音抜け用孔
１３ 開口部
２ スピーカー部
２１ 振動板
２１ａ エッジ
２１ｂ 第１振動板
２１ｃ 第２振動板
２１ｄ 第３振動板
２１ｅ 挿通孔
２２ 振動杆
２３ 振動手段
２３ａ 振動伝達部
２３ｂ テーパー部
２３ｃ 筒部
２３ｄ ダンパー
２３ｅ ボイスコイル
２３ｆ マグネット
２３ｇ ポール A Speaker device B Image display device body 1 Speaker frame 11 Audio output hole 12 Sound hole 13 Opening portion 2 Speaker portion 21 Diaphragm 21a Edge 21b First diaphragm 21c Second diaphragm 21d Third diaphragm 21e Insertion hole 22 Vibrating rod 23 Vibrating means 23a Vibration transmitting portion 23b Taper portion 23c Tube portion 23d Damper 23e Voice coil 23f Magnet 23g Pole

Claims (2)

スピーカー装置を備えた画像表示装置であって、
前記スピーカー装置は、
振動板と、該振動板と係合され前記振動板を起振させる振動手段とを備えてなるスピーカー部が、略筒状に形成されたスピーカーフレームの両側に対向配置されてなり、
前記スピーカーフレームは、前記振動板同士の間から外部に音声を出力させる音声出力孔が設けられてなることを特徴とする画像表示装置。 An image display device including a speaker device,
The speaker device is
A speaker portion comprising a diaphragm and a vibration means that engages with the diaphragm and vibrates the diaphragm is disposed opposite to both sides of a substantially cylindrical speaker frame,
The image display apparatus according to claim 1, wherein the speaker frame is provided with a sound output hole for outputting sound from between the diaphragms to the outside. 略筒状に形成されたスピーカーフレーム内に所定間隔をおいて並設された複数の振動板が振動杆を介して接続され、その複数の前記振動板のうち、一端に配置された振動板と係合され前記振動板を起振させる振動手段が前記スピーカーフレームに支持されて、夫々の前記振動板が同調可能に構成されてなるスピーカー部が、前記スピーカーフレームの両側に対向配置されたスピーカー装置を備えた画像表示装置であって、
前記スピーカー部は、
前記振動手段が係合された前記振動板以外の前記振動板に、対向配置された一方の前記振動杆を挿通させる連通孔が設けられて、夫々の前記スピーカー部を構成する夫々の複数の前記振動板が交互に配置されて、前記スピーカーフレームの両側に当該スピーカー部が対向配置され、
前記スピーカーフレームは、交互に配置された複数の前記振動板同士の間から外部に音声を出力させる音声出力孔が設けられていることを特徴とする画像表示装置。 A plurality of diaphragms arranged in parallel at a predetermined interval in a speaker frame formed in a substantially cylindrical shape are connected via a vibration rod, and among the plurality of diaphragms, a diaphragm disposed at one end; A speaker device in which vibration means for engaging and oscillating the diaphragm is supported by the speaker frame, and the speaker parts configured such that each of the diaphragms can be tuned is disposed opposite to both sides of the speaker frame. An image display device comprising:
The speaker unit is
The diaphragm other than the diaphragm engaged with the vibration means is provided with a communication hole through which one of the opposed vibrating rods is inserted, and each of the plurality of the above-described speaker portions constituting the speaker unit is provided. The diaphragms are alternately arranged, and the speaker parts are arranged opposite to both sides of the speaker frame,
The image display apparatus, wherein the speaker frame is provided with an audio output hole for outputting audio from between a plurality of the alternately arranged diaphragms.
JP2006215623A 2006-08-08 2006-08-08 Image display device Expired - Fee Related JP4627747B2 (en)

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JPH02260899A (en) * 1989-03-31 1990-10-23 Kenwood Corp Nondirectional acoustic transducer and speaker system
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WO2011052543A1 (en) * 2009-10-26 2011-05-05 シャープ株式会社 Speaker system, video display device, and television receiver
EP2495992A1 (en) * 2009-10-26 2012-09-05 Sharp Kabushiki Kaisha Speaker system, video display device, and television receiver
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JPWO2011052543A1 (en) * 2009-10-26 2013-03-21 シャープ株式会社 Speaker system, video display device, and television receiver
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