CN101043765A - Narrow speaker unit and image display apparatus - Google Patents
Narrow speaker unit and image display apparatus Download PDFInfo
- Publication number
- CN101043765A CN101043765A CN 200710089396 CN200710089396A CN101043765A CN 101043765 A CN101043765 A CN 101043765A CN 200710089396 CN200710089396 CN 200710089396 CN 200710089396 A CN200710089396 A CN 200710089396A CN 101043765 A CN101043765 A CN 101043765A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- vibration section
- speaker unit
- length direction
- narrow speaker
- 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
Links
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention provides an inclined cone shaped slender loudspeaker unit, which can lighten the dividing vibration; wherein, a vibrating board (11) is slender shaped in long direction and short direction seeing from a sounding side, and has a cone shaped vibrating part (12a and 12b) integrated under the state of arrangement in the long direction. The vibrating part (12a and 12b) is an inclined cone shape, which makes a coil form (15a and 15b) wound with a voice coil of the driving core decline to a side of a center line (CL) from the long direction of the vibrating part (12a and 12b).
Description
Technical field
The present invention relates to a kind of narrow speaker unit and the image display device of narrow speaker unit has been installed.
Background technology
In the last few years, in the television receiver field, be the center with liquid crystal indicator (LCD), Plasmia indicating panel flat-panel monitors such as (PDP), picture maximizes developed.When the television receiver that will have large-scale picture was arranged in the room, in order to reduce to be provided with the space as far as possible, requirement can reduce the design of offscreen front panel part area as far as possible.Therefore, the width of the front panel around the picture of installation loudspeaker unit (the following loud speaker that also abbreviates as sometimes) becomes very narrow and small.And generally speaking, loud speaker is installed in the front panel inside of portion about picture or picture bottom.
Install for the front panel around the narrow and small picture of this width is inner and to be generally circular loud speaker, must make the diameter of oscillating plate of loud speaker as far as possible little.Small-bore loud speaker is difficult to obtain sufficient acoustic pressure, thereby can't obtain high tone quality.If therefore use the loud speaker of patent documentation 1 described oscillating plate for oval (oval) shape, can make the oscillating plate of the area of oscillating plate greater than circle, therefore can increase acoustic pressure.As described in patent documentation 2, patent documentation 3, oscillating plate does not use ellipse, and uses roughly rectangular loud speaker can obtain same effect yet.The oscillating plate that will have ellipse or this elongated shape of rectangle is referred to as narrow speaker.
And in the dynamic speaker with general diffuser, can be created in the resonance of diffuser under several frequencies and can't carry out the sonorific what is called of vibration accurately and cut apart vibration.When vibration is cut apart in generation, produce crest or low ebb in the playback frequency characteristic, noise, abnormal sound appear in the playback sound.To cut apart vibration and various schemes occurred in order to alleviate, one of them is as described in the patent documentation 4, comprises the so-called oblique cone type loud speaker that the central shaft with the central shaft of voice coil loudspeaker voice coil and oscillating plate (diffuser) staggers.In oblique cone type loud speaker, can disperse to cut apart the resonance frequency that vibration produces, therefore to compare with the general loud speaker of non-oblique cone type, the playback frequency characteristic is comparatively smooth, can reduce the noise of playback sound.
In above-mentioned narrow speaker, for alleviate cut apart the vibration and make it for the oblique cone type be effective.Put down in writing the narrow speaker of oblique cone type in the patent documentation 5.
Patent documentation 1: the spy opens flat 6-269086 communique
Patent documentation 2: the spy opens flat 8-154296 communique
Patent documentation 3: open flat 6-13294 communique in fact
Patent documentation 4: the spy opens flat 9-284886 communique
Patent documentation 5: real fair 7-9485 communique
Summary of the invention
As mentioned above, as the loud speaker that is installed to the narrow and small front panel inside of width around the picture in the such image display device of television receiver, thereby the oscillating plate area increases acoustic pressure, also vibration is cut apart in reduction, preferably uses the narrow speaker of oblique cone type in order to enlarge.In order to improve tonequality, wish further to reduce the vibration of cutting apart of oblique cone type narrow speaker.And, when oblique cone type narrow speaker is installed to image display device, need to consider the sound radial pattern of oblique cone type narrow speaker uniqueness, make the installation site of narrow speaker, towards optimization.The optimum position that oblique cone type narrow speaker is not configured in the radial pattern of having considered that this narrow speaker is intrinsic, towards state under when being installed to image display device, can destroy expansion sense, the location sense of sound.Therefore, preferred use can utilize the image display device of the speciality of oblique cone type narrow speaker to greatest extent.
The present invention produces in view of above problem just, and its purpose is to provide a kind of can further reduce the oblique cone type narrow speaker unit of cutting apart vibration.Other purposes of the present invention are to provide a kind of and are installed to image display device and can improve the expansion sense of sound, the narrow speaker unit of location sense when using.Other purposes of the present invention also are to provide a kind of image display device that narrow speaker unit is installed, and it is less that it cuts apart vibration, and tonequality is higher.The present invention also aims to provide a kind of image display device that narrow speaker unit is installed, the radial pattern that it has considered oblique cone type narrow speaker, expansion sense, the location sense that can improve sound.
The present invention is in order to solve above-mentioned existing problem, a kind of narrow speaker unit is provided, it is observed from the sound emission surface is the elongated shape with short direction and length direction, it is characterized in that, have: oscillating plate, have conical first and second vibration section, this first and second vibration section is respectively the elongated shape with above-mentioned short direction and above-mentioned length direction, and is integrally formed with the state of arranging on above-mentioned length direction; First drive division, at the driving center that makes above-mentioned first vibration section from the middle position of the above-mentioned length direction of above-mentioned first vibration section to being installed under the state of above-mentioned length direction deflection on above-mentioned first vibration section, be used to drive above-mentioned first vibration section; With second drive division, at the driving center that makes above-mentioned second vibration section from the middle position of the above-mentioned length direction of above-mentioned second vibration section to being installed under the state of above-mentioned length direction deflection on above-mentioned second vibration section, be used to drive above-mentioned second vibration section.
As one of this structure (the first structure example), a kind of narrow speaker unit is provided, it is characterized in that above-mentioned first, second drive division is installed on above-mentioned first, second vibration section under the state of deflection each other to the inside at above-mentioned length direction respectively.
Two (second structure example) as this structure provide a kind of narrow speaker unit, it is characterized in that, above-mentioned first, second drive division is installed on above-mentioned first, second vibration section under the oblique state of lateral deviation outwardly away from each other at above-mentioned length direction respectively.
Three (the 3rd structure examples) as this structure, a kind of narrow speaker unit is provided, it is characterized in that, above-mentioned first drive division is to being installed under the state of the outside of above-mentioned length direction deflection on above-mentioned first vibration section, and above-mentioned second drive division is being installed on above-mentioned second vibration section under the state of the medial deviation of above-mentioned length direction.
The 4th structure example as having developed the above-mentioned first structure example provides a kind of narrow speaker unit, it is characterized in that, above-mentioned first vibration section in the length of above-mentioned length direction greater than the length of above-mentioned second vibration section at above-mentioned length direction.
The 5th structure example as having developed the above-mentioned second structure example provides a kind of narrow speaker unit, it is characterized in that, above-mentioned first vibration section in the length of above-mentioned length direction greater than the length of above-mentioned second vibration section at above-mentioned length direction.
The 6th structure example as having developed above-mentioned the 3rd structure example provides a kind of narrow speaker unit, it is characterized in that, above-mentioned second vibration section in the length of above-mentioned length direction greater than the length of above-mentioned first vibration section at above-mentioned length direction.
The present invention provides a kind of image display device in order to solve above-mentioned problem, it is characterized in that, with the narrow speaker unit of the first structure example with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion.And a kind of image display device is provided, it is characterized in that the narrow speaker unit that second structure is routine is the central portion that left and right directions is configured to the bottom of display frame front panel on every side with above-mentioned length direction.And provide a kind of image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the narrow speaker unit of the 3rd structure example with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the outside that the inboard of the left and right directions of above-mentioned bottom, above-mentioned second vibration section are positioned at above-mentioned left and right directions.
And, a kind of image display device is provided, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the narrow speaker unit of the 4th structure example with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the outside that the inboard of the left and right directions of above-mentioned bottom, above-mentioned second vibration section become above-mentioned left and right directions.And provide a kind of image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the narrow speaker unit of the 4th structure example with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the inboard that the outside of the left and right directions of above-mentioned bottom, above-mentioned second vibration section are positioned at above-mentioned left and right directions.And provide a kind of image display device, it is characterized in that, with the narrow speaker unit of the 4th structure example with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion, make above-mentioned first vibration section be positioned at above-mentioned about downside, above-mentioned second vibration section of portion be positioned at above-mentioned about the upside of portion.
Further, provide a kind of image display device, it is characterized in that, with the narrow speaker unit of the 5th structure example with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion.A kind of image display device is provided, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the narrow speaker unit of the 6th structure example with above-mentioned length direction, makes above-mentioned second vibration section be positioned at the inboard that the outside of the left and right directions of above-mentioned bottom, above-mentioned first vibration section are positioned at above-mentioned left and right directions.
According to narrow speaker unit of the present invention, cut apart vibration by further reduction, can improve tonequality.And, when being installed to image display device and using, can improve expansion sense, the location sense of sound according to narrow speaker unit of the present invention.
According to image display device of the present invention, can obtain to cut apart vibration less, the image display device of high tone quality.And according to image display device of the present invention, can obtain to consider the oblique cone type narrow speaker radial pattern and improve the expansion sense of sound, the image display device of location sense.
Description of drawings
Fig. 1 is the front view of the narrow speaker unit that relates to of expression first execution mode of the present invention.
Fig. 2 is the lateral parts sectional view of the narrow speaker unit of Fig. 1.
Fig. 3 is the summary plane graph of radial pattern of sound of the narrow speaker unit of presentation graphs 1.
Fig. 4 is the front view of example of the image display device of expression narrow speaker unit that Fig. 1 has been installed.
Fig. 5 is the front view of the narrow speaker unit that relates to of expression second execution mode of the present invention.
Fig. 6 is the summary plane graph of sound radial pattern of the narrow speaker unit of presentation graphs 5.
Fig. 7 is the perspective view of example of the image display device of expression narrow speaker unit that Fig. 5 has been installed.
Fig. 8 is the front view of the narrow speaker unit that relates to of expression the 3rd execution mode of the present invention.
Fig. 9 is the summary plane graph of sound radial pattern of the narrow speaker unit of presentation graphs 8.
Figure 10 is the front view of example of the image display device of expression narrow speaker unit that Fig. 8 has been installed.
Figure 11 is the front view of the narrow speaker unit that relates to of expression the 4th execution mode of the present invention.
Figure 12 is the summary plane graph of sound radial pattern of the narrow speaker unit of expression Figure 11.
Figure 13 is the front view of first example of the image display device of expression narrow speaker unit that Figure 11 has been installed.
Figure 14 is the front view of second example of the image display device of expression narrow speaker unit that Figure 11 has been installed.
Figure 15 is the front view of the 3rd example of the image display device of expression narrow speaker unit that Figure 11 has been installed.
Figure 16 is the front view of the narrow speaker unit that relates to of expression the 5th execution mode of the present invention.
Figure 17 is the perspective view of example of the image display device of expression narrow speaker unit that Figure 16 has been installed.
Figure 18 is the front view of the narrow speaker unit that relates to of expression the 6th execution mode of the present invention.
Figure 19 is the front view of example of the image display device of expression narrow speaker unit that Figure 18 has been installed.
Figure 20 is the front view of the narrow speaker unit that relates to of expression the 7th execution mode of the present invention.
Figure 21 is the performance plot that is used for the frequency characteristic of frequency characteristic under the comparison embodiment of the present invention and existing example.
Embodiment
(first execution mode)
Fig. 1 is the front view of the narrow speaker unit that relates to of expression first execution mode of the present invention, and Fig. 2 is the lateral parts sectional view of the narrow speaker unit of Fig. 1.As shown in Figure 1 and Figure 2, the narrow speaker unit 10 of first execution mode has an oscillating plate 11.Oscillating plate 11 is a rectangle of having removed the angle from as the top view of sound emission surface the time, has onesize two vibration section 12a, 12b.Vibration section 12a, 12b are connected by connecting portion 12c.Two vibration section 12a, 12b and connecting portion 12c become one, and form an oscillating plate 11.In first execution mode and following every other execution mode, also available ellipse substitutes rectangle.The present invention is as long as oscillating plate and two vibration sections are respectively the elongated shapes that has short direction and length direction when the sound emission surface is observed.
The peripheral end of oscillating plate 11 is fixed on the framework 14 by edge 13.Edge 13 comprises the situation of separating with oscillating plate 11 and is the situation of a part of the peripheral end of oscillating plate 11. Vibration section 12a, 12b from peripheral end begin till the peristome, the degree of depth deepens the pyramid type of " mortar shape " gradually, is fixed with the speech coil framework 15a cylindraceous, the 15b that are wound with voice coil loudspeaker voice coil (not shown) in the side setting of the back side of oscillating plate 11 on the above-mentioned peristome.Dust cover 16a, 16b are installed on vibration section 12a, the 12b, are fixed with the peristome of speech coil framework 15a, 15b with obstruction.
In Fig. 1, the short direction (above-below direction of figure) of oscillating plate 11 ( vibration section 12a, 12b) is called Width, length direction (left and right directions of figure) is called length direction.And if vibration section 12a, 12b are rectangle, then short direction is a short side direction, and length direction is a long side direction, if vibration section 12a, 12b are oval, then short direction is the minor axis direction, and length direction is the major diameter direction.Distance between a pair of chain-dotted line L1, the L4 at the center length direction both ends of oscillating plate 11, that pass through edge 13 is as the length D of oscillating plate 11.As can be seen from Figure 1, vibration section 12a be the position of speech coil framework 15a on the length direction of vibration section 12a to oblique cone type as the medial deviation of centre line C L one side of connecting portion 12c.Wherein, centre line C L is the center line of the length D of oscillating plate 11.And, vibration section 12b also be the position of speech coil framework 15b on the length direction of vibration section 12b to oblique cone type as the medial deviation of centre line C L one side.The position of speech coil framework 15a, 15b is positioned at the center of Width.
The position of having twined speech coil framework 15a, the 15b of voice coil loudspeaker voice coil is the driving center when making vibration section 12a, 12b vibration respectively.Therefore, narrow speaker unit 10 is that mind-set centre line C L one lateral deviation tiltedly in the driving of vibration section 12a, 12b, the driving center begins the oblique cone type that moves to centre line C L one lateral deviation from the central authorities of length direction respectively in vibration section 12a, 12b.
D11＝D14，D12＝D13，D11＞D12，D13＜D14
As shown in Figure 2, be fixed on the bottom of framework 14 by rivet and adhesive etc. at the top board 17 of central portion formation opening.Be wholely set pole piece 110 on the end yoke 19, the cross section of end yoke 19 and pole piece 110 is roughly T word shape.On the bottom of speech coil framework 15a, inserted the leading section of pole piece 110.Speech coil framework 15a inserts the magnetic gap of formation between the end lead to the peristome that forms on the top board 17 and the pole piece 110.On the top board 17, the magnet 18 of ring-type is arranged, on magnet 18, end yoke 19 is arranged by adhesive by adhesive.Framework 14, top board 17, magnet 18, end yoke 19 are fixed parts of narrow speaker unit 10.
As mentioned above, in the peristome that forms, be fixed with speech coil framework 15a on the diffuser that constitutes vibration section 12a, dust cover 16a covers peristome.And vibration section 12a also can be formed by the material beyond the paper, and material is not limited.Interior all ends of the vibration isolator 111 of ring-type are by the outer peripheral face of adhesive to speech coil framework 15a, and peripheral end arrives framework 14 by adhesive.The speech coil framework 15a that is wound with voice coil loudspeaker voice coil by vibration isolator 111, got involved the edge 13 of the diffuser of vibration section 12a, with respect to framework 14 by resiliency supported.Vibration section 12a, edge 13, speech coil framework 15a, dust cover 16a, vibration isolator 111 are movable parts of narrow speaker unit 10.Speech coil framework 15a, top board 17, magnet 18, end yoke 19, the pole piece 110 that is wound with voice coil loudspeaker voice coil is the drive divisions that drive vibration section 12a, 12b.
Only represented the structure of vibration section 12a one side at this, but the structure of vibration section 12b one side is also identical.In the narrow speaker unit 10 of first execution mode, framework 14 relative vibration section 12a, 12b are common means, and miscellaneous part is independent respectively the setting in vibration section 12a, 12b.
10, one oscillating plates 11 of narrow speaker unit according to first execution mode of above explanation have two vibration section 12a, 12b, and vibration section 12a, 12b are respectively the oblique cone types, therefore cut apart vibration and compare and can reduce with existing loudspeaker unit.
Below consider the sound radial pattern of narrow speaker unit 10 uniquenesses of first execution mode, for how narrow speaker unit 10 is installed to image display device and uses better and describe.Fig. 3 (A) is a summary plane graph of observing narrow speaker unit 10 from the end of length direction, and Fig. 3 (B) is the summary plane graph that the vertical configuration of the length direction of narrow speaker unit 10 is also observed from the side.Generally speaking, the directive property of narrow speaker unit is that Width is bigger than length direction, therefore in narrow speaker unit 10, similarly, the radial pattern of the sound that is sent by narrow speaker unit 10 becomes the radial pattern P1 shown in Fig. 3 (A) when the end of length direction is observed.Because vibration section 12a, 12b are respectively that speech coil framework 15a, 15b are to the oblique oblique cone type of centre line C L one lateral deviation, therefore shown in Fig. 3 (B), when the radial pattern of the sound that sends from vibration section 12a is observed from the side, be the radial pattern P12a that tilts upward, the radial pattern of the sound that sends from vibration section 12b is the radial pattern P12b that tilts downwards when observing from the side.
The narrow speaker unit 10 of first execution mode is owing to radial pattern P1, the P12a, the P12b that have shown in Fig. 3 (A), (B), therefore as shown in Figure 4, preferably narrow speaker unit 10 is configured to image display device 100 display frame (being designated hereinafter simply as picture) 101 about.Particularly, preferably with the length direction be with narrow speaker unit 10 above-below direction be installed to front panel 102 about use on the 102L of portion, the 102R.The inside of the 102L of portion, 102R about narrow speaker unit 10 is installed in need not be described once more.During from visual observation image display device 100, generally can't discern narrow speaker unit 10, but this for summary represent narrow speaker unit 10 the installation site, towards, can discern the state diagram of narrow speaker unit 10.Forwardly on the panel 102,, be formed for emitting the pore of sound, from this hole, emit from the sound that narrow speaker unit 10 sends corresponding to the part that narrow speaker unit 10 is installed.
Fig. 4 represents the direction of the sound that sends from narrow speaker unit 10 with the arrow summary.Unblanketed arrow is represented the radial pattern P1 that illustrates according to Fig. 3 (A), the state of sound direction expansion to the left and right.Hypographous arrow is represented the radial pattern P12a, the P12b that cause for the oblique cone type because of vibration section 12a, 12b that illustrate according to Fig. 3 (B), the state that sound is expanded up and down.So, narrow speaker unit 10 is installed to front panel 102 about in the image display device 100 of the 102L of portion, 102R, sound from about narrow speaker unit 10 up and down about expansion, therefore can obtain good sound expansion sense.
(second execution mode)
In second execution mode, be that the center describes with difference with first execution mode, suitably omitted the explanation of common ground.Fig. 5 is the front view of the narrow speaker unit that relates to of expression second execution mode of the present invention.As shown in Figure 5, the narrow speaker unit 20 of second execution mode has an oscillating plate 21.Oscillating plate 21 is a rectangle of having removed the angle from as the top view of sound emission surface the time, has onesize two conical vibration section 22a, 22b.Vibration section 22a, 22b are connected by connecting portion 22c.The peripheral end of oscillating plate 21 is fixed to framework 24 by edge 23.
As can be seen from Figure 5, vibration section 22a be the position of speech coil framework 25a and dust cover 26a on the length direction of vibration section 22a to as with the oblique cone type of the outside deflection of the opposite side of centre line C L of connecting portion 22c.Wherein, centre line C L is the center line of the length D of oscillating plate 21.And, vibration section 22b also be the position of speech coil framework 25b and dust cover 26b on the length direction of vibration section 22b to oblique cone type as the outside deflection of an opposite side with centre line C L.Vibration section 22a, 22b dispose in the longitudinal direction symmetrically with respect to centre line C L.In the narrow speaker unit 20 of second execution mode, the interval D 24 of the interval D 23 of the interval D 222 of the interval D 21 of line L1 and line L2, line L2 and centre line C L, centre line C L and line L3, line L3 and line L4 has following relation.
D21＝D24，D22＝D23，D21＜D22，D23＞D24
In the narrow speaker unit 20 of this second execution mode, the same with the narrow speaker unit 10 of first execution mode, vibration section 22a, 22b make the oblique cone type of driving center from the central deflection of the length direction of vibration section 22a, 22b, therefore can make to cut apart to vibrate to compare reduction with existing loudspeaker unit.
Below consider the sound radial pattern of narrow speaker unit 20 uniquenesses of second execution mode, for how narrow speaker unit 20 is installed to image display device and uses better and describe.When the radial pattern of the sound that is sent by narrow speaker unit 20 is observed from the end of length direction, the same with first execution mode, become the radial pattern P1 shown in Fig. 3 (A).Fig. 6 is the summary plane graph that the length direction landscape configuration of narrow speaker unit 20 is also observed from the side.Because vibration section 22a, 22b are respectively speech coil framework 25a, 25b (driving center) the oblique cone types to length direction outside deflection, therefore the radial pattern of the sound that sends from vibration section 22a becomes the radial pattern P22a that tilts to Fig. 6 inboard (centre line C L one side), and the radial pattern of the sound that sends from vibration section 22b also becomes to the inside the radial pattern P22b that (centre line C L one side) tilts.
The narrow speaker unit 20 of second execution mode is owing to have as shown in Figure 6 radial pattern P22a, P22b, therefore as shown in Figure 7, preferably narrow speaker unit 20 is configured to image display device 200 display frame 201 below.Particularly, be the central portion that left and right directions is installed to the bottom 202B of front panel 202 with the length direction preferably with narrow speaker unit 20, use as center loudspeaker.In narrow speaker unit 20, radial pattern P22a, the P22b of the sound that sends from vibration section 22a, 22b all to centre line C L one lateral deviation to, therefore as shown in Figure 7, radial pattern P22a, P22b are synthesized, as with shown in the arrow of shade, sound is forwards emitted from the center of the length direction of narrow speaker unit 20.In Fig. 7, omitted diagram based on the state of emitting of the sound of radial pattern P1.
Therefore, in the image display device 200 of the central authorities of the bottom 202B that narrow speaker unit 20 is installed to front panel 202, can obtain the location sense of good sound.In addition, the narrow speaker unit of the 202L of portion, 202R is not particularly limited about being installed to, and for example uses the narrow speaker unit 10 of first execution mode to get final product.
(the 3rd execution mode)
In the 3rd execution mode, be that the center describes with difference with first execution mode, suitably omitted the explanation of common ground.Fig. 8 is the front view of the narrow speaker unit that relates to of expression the 3rd execution mode of the present invention.As shown in Figure 8, the narrow speaker unit 30 of the 3rd execution mode has an oscillating plate 31.Oscillating plate 31 is a rectangle of having removed the angle from the top view as the sound emission surface, has onesize two conical vibration section 32a, 32b.Vibration section 32a, 32b are connected by connecting portion 32c.The peripheral end of oscillating plate 31 is fixed to framework 34 by edge 33.
As can be seen from Figure 8, vibration section 32a be the position of speech coil framework 35a and dust cover 36a on the length direction of vibration section 32a to as with the oblique cone type of the outside deflection of the opposite side of centre line C L of connecting portion 32c.Wherein, centre line C L is the center line of the length D of oscillating plate 31.On the other hand, vibration section 32b be the position of speech coil framework 35b and dust cover 36b on the length direction of vibration section 32b to oblique cone type as the medial deviation of centre line C L one side.In the narrow speaker unit 30 of the 3rd execution mode, the interval D 34 of the interval D 33 of the interval D 32 of the interval D 31 of line L1 and line L2, line L2 and centre line C L, centre line C L and line L3, line L3 and line L4 has following relation.
D31＝D33，D32＝D34，D31＜D32，D33＜D34
In the narrow speaker unit 30 of the 3rd execution mode, the same with the narrow speaker unit 10 of first execution mode, vibration section 32a, 32b make the oblique cone type of driving center from the central deflection of the length direction of vibration section 32a, 32b, therefore can make to cut apart to vibrate to compare reduction with existing loudspeaker unit.
Below consider the sound radial pattern of narrow speaker unit 30 uniquenesses of the 3rd execution mode, for how narrow speaker unit 30 is installed to image display device and uses better and describe.When the radial pattern of the sound that is sent by narrow speaker unit 30 is observed from the end of length direction, the same with first execution mode, become the radial pattern P1 shown in Fig. 3 (A).Fig. 9 is the summary plane graph that the length direction landscape configuration of narrow speaker unit 30 is also observed from the side.Because vibration section 32a, 32b be respectively speech coil framework 35a, 35b (driving center) oblique cone type that end one lateral deviation is oblique to length direction, therefore the radial pattern of the sound that sends from vibration section 32a, 32b becomes the radial pattern P32a, the P32b that tilt to the right side of Fig. 9.
The narrow speaker unit 30 of the 3rd execution mode is owing to have as shown in Figure 9 radial pattern P32a, P32b, therefore as shown in figure 10, preferably narrow speaker unit 30 is configured to image display device 300 display frame 301 below.Particularly, preferably with the length direction be the end of the left and right directions of the left and right directions bottom 302B that is installed to front panel 302 with narrow speaker unit 30.More specifically, make narrow speaker unit 30 with speech coil framework 35a, 35b to the right (inboard) deflection towards, be installed to the left part of bottom 302B as left speaker, with speech coil framework 35a, 35b to the left (inboard) deflection towards, be installed to the right part of bottom 302B as right loud speaker.So, from the narrow speaker unit 30 as left speaker, shown in the arrow of band shade, sound is emitted left, and from the narrow speaker unit 30 as right loud speaker, shown in the arrow of band shade, sound is emitted to the right.
In image display device shown in Figure 10 300, center loudspeaker 303 is installed at the central portion of bottom 302B.Center loudspeaker 303 not necessarily, but preferred the setting.If narrow speaker unit 30 is installed to the left and right end portions of the bottom 302B of front panel 302 as Figure 10, then can obtain good sound expansion sense.If center loudspeaker 303 also is installed, then can improve the localization of sound sense of picture 301 central authorities.
(the 4th execution mode)
In the 4th execution mode, be that the center describes with difference with first execution mode, suitably omitted the explanation of common segment.Figure 11 is the front view of the narrow speaker unit that relates to of expression the 4th execution mode of the present invention.As shown in figure 11, the narrow speaker unit 40 of the 4th execution mode has an oscillating plate 41.Oscillating plate 41 is a rectangle of having removed the angle from the top view as the sound emission surface, has two conical vibration section 42a, 42b.Vibration section 42a, 42b are connected by connecting portion 42c.The narrow speaker unit 10 of the narrow speaker unit 40 and first execution mode is different, and the size of vibration section 42a, 42b differs from one another.In example shown in Figure 11, vibration section 42a is longer than vibration section 42b.The peripheral end of oscillating plate 41 is fixed to framework 44 by edge 43.
As can be seen from Figure 11, vibration section 42a be the position of speech coil framework 45a and dust cover 46a on the length direction of vibration section 42a to oblique cone type as the medial deviation of centre line C L one side of connecting portion 42c.In the 4th execution mode, centre line C L is not positioned at the central authorities of the length D of oscillating plate 41.And, vibration section 42b also be the position of speech coil framework 45b and dust cover 46b on the length direction of vibration 42b to oblique cone type as the medial deviation of centre line C L one side.In the narrow speaker unit 40 of the 4th execution mode, the interval D 44 of the interval D 43 of the interval D 42 of the interval D 41 of line L1 and line L2, line L2 and centre line C L, centre line C L and line L3, line L3 and line L4 has following relation.
D41＞D42，D43＜D44，D41＞D44，D42＞D43
In the narrow speaker unit 40 of the 4th execution mode, the same with the narrow speaker unit 10 of first execution mode, vibration section 42a, 42b are respectively the oblique cone types, therefore can make to cut apart to vibrate to compare reduction with existing loudspeaker unit.Further, because the varying in size of vibration section 42a, 42b, therefore in each vibration section 42a, 42b, produce the resonance frequency of cutting apart vibration and become and differ from one another.Therefore, the narrow speaker unit 40 of the 4th execution mode is compared with the narrow speaker unit 10 of first execution mode, can further reduce and cut apart vibration.
Below consider the sound radial pattern of narrow speaker unit 40 uniquenesses of the 4th execution mode, for how narrow speaker unit 40 is installed to image display device and uses better and describe.Figure 12 (A) is a summary plane graph of observing narrow speaker unit 40 from the end of length direction, and Figure 12 (B) is the summary plane graph that the length direction landscape configuration of narrow speaker unit 40 is also observed from the side.Shown in Figure 12 (A), when the radial pattern of the sound that sends from narrow speaker unit 40 is observed from the end of length direction, be and the identical radial pattern P1 of first execution mode shown in Fig. 3 (A).Because vibration section 42a, 42b are respectively that speech coil framework 45a, 45b are to the oblique oblique cone type of centre line C L one lateral deviation, therefore shown in Figure 12 (B), when the radial pattern of the sound that sends from vibration section 42a, 42b is observed from the side, become radial pattern P42a, the P42b of the expansion of tilting laterally respectively.Because vibration section 42a, 42b vary in size, so the acoustic pressure of radial pattern P42a is greater than the acoustic pressure of radial pattern P42b.
Because the narrow speaker unit 40 of the 4th execution mode has as shown in figure 12 radial pattern P42a, P42b, therefore as first example as shown in figure 13, preferred disposition is below the picture 401 of image display device 400.Particularly, be the left and right end portions that left and right directions is installed to the bottom 402B of front panel 402 with the length direction preferably, so that the bigger vibration section 42a of area is positioned at the inboard each other with narrow speaker unit 40.So, from the narrow speaker unit 40 as left speaker, shown in the arrow of band shade, sound (inboard) is to the right emitted, and from the narrow speaker unit 40 as right loud speaker, shown in the arrow of band shade, sound (inboard) is left emitted.
In image display device shown in Figure 13 400, can obtain the good sound location sense (so-called good centrally-located) of picture 401 central authorities.And the vibration section 42b that area is little compares with vibration section 42a, and therefore the high frequency of can resetting is well compared with the narrow speaker unit 10 of first execution mode, has good high frequency reproducing characteristics.Further, because vibration section 42b separates in the left and right end portions of bottom 402B, therefore in the high frequency of the left and right sides, obtain good separation.
Figure 14 represents the installation method of narrow speaker unit 40 image display device 410 as second example.As shown in figure 14, second example is, is the left and right end portions that left and right directions is installed to the bottom 412B of front panel 412 with narrow speaker unit 40 with the length direction, so that the bigger vibration section 42a of area is positioned at the outside each other.So, from the narrow speaker unit 40 as left speaker, shown in the arrow of band shade, sound (outside) is left emitted, and from the narrow speaker unit 40 as right loud speaker, shown in the arrow of band shade, sound (outside) is to the right emitted.In this image display device shown in Figure 14 410, can obtain the good sound expansion sense of intermediate frequency.
Figure 15 represents the installation method of narrow speaker unit 40 image display device 420 as the 3rd example.As shown in figure 15, the 3rd example is, with narrow speaker unit 40 with the length direction be above-below direction be installed to front panel 422 about the 422L of portion, 422R so that the less vibration section 42b of area is positioned at upside.In image display device shown in Figure 15 420, the same during with Fig. 4, can obtain sound from about narrow speaker unit 40 up and down about the expansion sense of good sound of expansion.And by the little vibration section 42b of area, high frequency is reset well.In addition, also narrow speaker unit 40 can be installed, but preferably as Figure 15, make vibration section 42b be positioned at upside so that vibration section 42b is positioned at downside.
(the 5th execution mode)
In the 5th execution mode, be that the center describes with difference with second execution mode, suitably omitted the explanation of common ground.Figure 16 is the front view of the narrow speaker unit that relates to of expression the 5th execution mode of the present invention.As shown in figure 16, the narrow speaker unit 50 of the 5th execution mode has an oscillating plate 51.Oscillating plate 51 is a rectangle of having removed the angle from the top view as the sound emission surface, has two conical vibration section 52a, 52b.Vibration section 52a, 52b are connected by connecting portion 52c.The narrow speaker unit 20 of the narrow speaker unit 50 and second execution mode is different, and the size of vibration section 52a, 52b differs from one another.In example shown in Figure 16, vibration section 52a is longer than vibration section 52b.The peripheral end of oscillating plate 51 is fixed to framework 54 by edge 53.
As can be seen from Figure 16, vibration section 52a be the position of speech coil framework 55a and dust cover 56a on the length direction of vibration section 52a to as with the oblique cone type of the outside deflection of the opposite side of centre line C L of connecting portion 52c.In the 5th execution mode, centre line C L is not positioned at the central authorities of the length D of oscillating plate 51 yet.And, vibration section 52b also be the position of speech coil framework 55b and dust cover 56b on the length direction of vibration section 52b to oblique cone type as the outside deflection of an opposite side with centre line C L.In the narrow speaker unit 50 of the 5th execution mode, the interval D 54 of the interval D 53 of the interval D 52 of the interval D 51 of line L1 and line L2, line L2 and centre line C L, centre line C L and line L3, line L3 and line L4 has following relation.
D51＜D52，D53＞D54，D51＞D54，D52＞D53
In the narrow speaker unit 50 of the 5th execution mode, the same with the narrow speaker unit 20 of second execution mode, vibration section 52a, 52b are respectively the oblique cone types that makes driving center deflection, therefore can make to cut apart to vibrate to compare reduction with existing loudspeaker unit.Further, because therefore varying in size of vibration section 52a, 52b compared with the narrow speaker unit 20 of second execution mode, can further reduce and cut apart vibration.
Below consider the sound radial pattern of narrow speaker unit 50 uniquenesses of the 5th execution mode, for how narrow speaker unit 50 is installed to image display device and uses better and describe.When the radial pattern of the sound that sends from narrow speaker unit 50 is observed from the end of length direction, be and the identical radial pattern P1 of first execution mode shown in Fig. 3 (A).Because vibration section 52a, 52b are respectively speech coil framework 55a, the 55b oblique cone types to the outside deflection opposite with centre line C L, therefore the same with Fig. 6, when the radial pattern of the sound that sends from vibration section 52a, 52b is observed from the side, become the radial pattern of the expansion of tilting to the inside respectively.But because the varying in size of vibration section 52a, 52b, the therefore acoustic pressure that produces greater than the radial pattern of vibration section 52b of the acoustic pressure that produces from the radial pattern of vibration section 52a.
Because the narrow speaker unit 50 of the 5th execution mode has above-mentioned radial pattern, therefore as shown in figure 17, preferably narrow speaker unit 50 is configured in image display device 500 picture 501 about.Particularly, preferably make narrow speaker unit 50 with the length direction be above-below direction be installed to front panel 502 about the 502L of portion, 502R.In Figure 17,52a is configured in upside with the vibration section, also vibration section 52b can be configured to upside.
In narrow speaker unit 50, the radial pattern of the sound that sends from vibration section 52a, 52b is all to the centre line C L lopsidedness, and therefore as shown in figure 17, radial pattern is synthesized, as with shown in the arrow of shade, sound is forwards emitted from the center of the length direction of narrow speaker unit 20.In image display device 500, the inboard of the length direction in vibration section 52a, 52b can obtain clear and definite location.In Figure 17, example the situation on top of the narrow speaker unit 50 about tweeter 503 is installed in.Sound is expanded to all directions from tweeter 503.
(the 6th execution mode)
In the 6th execution mode, be that the center describes with difference with the 3rd execution mode, suitably omitted the explanation of common ground.Figure 18 is the front view of the narrow speaker unit that relates to of expression the 6th execution mode of the present invention.As shown in figure 18, the narrow speaker unit 60 of the 6th execution mode has an oscillating plate 61.Oscillating plate 61 is a rectangle of having removed the angle from the top view as the sound emission surface, has two conical vibration section 62a, 62b.Vibration section 62a, 62b are connected by connecting portion 62c.The narrow speaker unit 30 of narrow speaker unit 60 and the 3rd execution mode is different, and the size of vibration section 52a, 62b differs from one another.In example shown in Figure 180, vibration section 62a is longer than vibration section 62b.The peripheral end of oscillating plate 61 is fixed to framework 64 by edge 63.
As can be seen from Figure 18, vibration section 62a be the position of speech coil framework 65a and dust cover 66a on the length direction of vibration section 62a to oblique cone type as the medial deviation of centre line C L one side of connecting portion 62c.In the 6th execution mode, centre line C L is not positioned at the central authorities of the length D of oscillating plate 61 yet.And, vibration section 62b be the position of speech coil framework 65b and dust cover 66b on the length direction of vibration section 62b to oblique cone type as the outside deflection of an opposite side with centre line C L.In the narrow speaker unit 60 of the 6th execution mode, the interval D 64 of the interval D 63 of the interval D 62 of the interval D 61 of line L1 and line L2, line L2 and centre line C L, centre line C L and line L3, line L3 and line L4 has following relation.
D61＞D62，D63＞D64，D61＞D63，D62＞D64
In the narrow speaker unit 60 of the 6th execution mode, the same with the narrow speaker unit 30 of the 3rd execution mode, vibration section 62a, 62b are respectively the oblique cone types that makes driving center deflection, therefore can make to cut apart to vibrate to compare reduction with existing loudspeaker unit.Further, because therefore varying in size of vibration section 62a, 62b compared with the narrow speaker unit 30 of the 3rd execution mode, can further reduce and cut apart vibration.
Below consider the sound radial pattern of narrow speaker unit 60 uniquenesses of the 6th execution mode, for how narrow speaker unit 60 is installed to image display device and uses better and describe.When the radial pattern of the sound that sends from narrow speaker unit 60 is observed from the end of length direction, be and the identical radial pattern P1 of first execution mode shown in Fig. 3 (A).Because vibration section 62a, 62b be respectively speech coil framework 65a, 65b (driving center) oblique cone type that end one lateral deviation is oblique to length direction, therefore the radial pattern of the sound that sends from vibration section 62a, 62b becomes the radial pattern that tilts in the opposite direction to the side with the center of driving deflection.But because the varying in size of vibration section 62a, 62b, the therefore acoustic pressure that produces greater than radial pattern of the acoustic pressure that produces from the radial pattern of vibration section 62a from vibration section 62b.
Because the narrow speaker unit 60 of the 6th execution mode has above-mentioned radial pattern, therefore as shown in figure 19, preferably narrow speaker unit 60 is configured in image display device 600 picture 601 below.Particularly, preferably making narrow speaker unit 60 is the end of the left and right directions of the left and right directions bottom 602B that is installed to front panel 602 with the length direction.More specifically, make narrow speaker unit 60 make vibration section 62a be positioned at the outside state under so that speech coil framework 65a, 65b to the right (inboard) deflection towards, be installed to the left part of bottom 602B as left speaker, make state that vibration section 62a is positioned at the outside down so that speech coil framework 65a, 65b to the left (inboard) deflection towards, be installed to the right part of bottom 602B as right loud speaker.So, from about narrow speaker unit 60, as the band shade arrow shown in, sound direction is to the left and right emitted.
In image display device shown in Figure 19 600, center loudspeaker 603 is installed at the central portion of bottom 602B.Center loudspeaker 603 not necessarily, but preferred the setting.If narrow speaker unit 60 is installed to the left and right end portions of the bottom 602B of front panel 602 as Figure 19, then can obtain good sound expansion sense.If center loudspeaker 603 also is installed, then can improve the localization of sound sense of picture 601 central authorities.
(the 7th execution mode)
In the 7th execution mode, be that the center describes with difference with first to the 6th execution mode, suitably omit the explanation of same section.Figure 20 is the side view of the narrow speaker unit that relates to of expression the 7th execution mode of the present invention.The essential structure of the narrow speaker unit 70 of the 7th execution mode is identical with the narrow speaker unit of first to the 6th execution mode 10,20,30,40,50,60.But difference is, in the narrow speaker unit 10,20,30,40,50,60 of first to the 6th execution mode, independent respectively setting the in top board 17 relative two vibration sections, but in narrow speaker unit 70, two vibration sections are provided with a shared top board 170.Narrow speaker unit 70 according to the 7th execution mode can improve mechanical strength.Particularly, help intensity to strengthen when framework 14 (24,34,44,54,64) during by nonmetal formation such as resins.And, when top board 170 being fixed to framework 14 (24,34,44,54,64), can reduce work hours.
(comparison of frequency characteristic)
Utilize the execution mode of the narrow speaker unit that Figure 21 relatively the present invention relates to and the frequency characteristic of existing narrow speaker unit at this.In Figure 21, in the narrow speaker unit 10,20,30,40,50,60 of above-mentioned first to the 6th execution mode, represent the frequency characteristic of the narrow speaker unit 40 of the 4th execution mode as representative.Figure 21 (A) is the frequency characteristic of the narrow speaker unit 40 of the 4th execution mode.Figure 21 (B) is the narrow speaker unit that has two big or small identical vibration sections of magnetic track formula on the oscillating plate that is called as the magnetic track formula, is that two vibration sections all are not the frequency characteristics of the conventional example of oblique cone type.
In the narrow speaker unit of two vibration sections conventional example that is not the oblique cone type, as among Figure 21 (B) by shown in the situation that circle surrounded of dotted line, sound pressure level is lower under 7 to 10kHz, becomes the playback sound of sound oppressiveness.Relative with it, in the narrow speaker unit 40 of the 4th execution mode shown in Figure 21 (A), sound pressure level is flat substantially under 7 to 10kHz, and sound is not dull yet, but bright playback sound.
This only example the frequency characteristic of narrow speaker unit 40 of the 4th execution mode, but first to the 3rd, the 5th, the narrow speaker unit 10,20,30,50,60 of the 6th execution mode is compared with the conventional example of Figure 21 (B), also can obtain good frequency characteristic.
(variation)
In each execution mode of above explanation, represented that an oscillating plate has the structure of two vibration sections, also oscillating plate has vibration section more than three or three.In this case, two vibration sections in the vibration section more than three or three so long as the structure of the respective embodiments described above get final product.And the narrow speaker unit of each execution mode is preferred for the such image display device of television receiver, also can be used as the loudspeaker unit that is installed to audio frequency apparatus and uses.
The present invention can carry out various changes in the scope that does not break away from its purport, the invention is not restricted to the respective embodiments described above.
Claims (15)
1. narrow speaker unit, it is observed from the sound emission surface is the elongated shape with short direction and length direction, it is characterized in that having:
Oscillating plate has conical first and second vibration section, and this first and second vibration section is respectively the elongated shape with above-mentioned short direction and above-mentioned length direction, and is integrally formed with the state of arranging on above-mentioned length direction;
First drive division, at the driving center that makes above-mentioned first vibration section from the middle position of the above-mentioned length direction of above-mentioned first vibration section to being installed under the state of above-mentioned length direction deflection on above-mentioned first vibration section, be used to drive above-mentioned first vibration section; With
Second drive division, at the driving center that makes above-mentioned second vibration section from the middle position of the above-mentioned length direction of above-mentioned second vibration section to being installed under the state of above-mentioned length direction deflection on above-mentioned second vibration section, be used to drive above-mentioned second vibration section.
2. narrow speaker unit according to claim 1 is characterized in that, above-mentioned first, second drive division is installed on above-mentioned first, second vibration section under the state of deflection each other to the inside at above-mentioned length direction respectively.
3. narrow speaker unit according to claim 1 is characterized in that, above-mentioned first, second drive division is installed on above-mentioned first, second vibration section under the oblique state of lateral deviation outwardly away from each other at above-mentioned length direction respectively.
4. narrow speaker unit according to claim 1, it is characterized in that, above-mentioned first drive division is being installed on above-mentioned first vibration section under the state of above-mentioned length direction outside deflection, and above-mentioned second drive division is to being installed under the state of above-mentioned length direction medial deviation on above-mentioned second vibration section.
5. narrow speaker unit according to claim 2 is characterized in that, above-mentioned first vibration section in the length of above-mentioned length direction greater than the length of above-mentioned second vibration section at above-mentioned length direction.
6. narrow speaker unit according to claim 3 is characterized in that, above-mentioned first vibration section in the length of above-mentioned length direction greater than the length of above-mentioned second vibration section at above-mentioned length direction.
7. narrow speaker unit according to claim 4 is characterized in that, above-mentioned second vibration section in the length of above-mentioned length direction greater than the length of above-mentioned first vibration section at above-mentioned length direction.
8. an image display device is characterized in that, with the described narrow speaker unit of claim 2 with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion.
9. an image display device is characterized in that, is the central portion that left and right directions is configured to the bottom of display frame front panel on every side with the described narrow speaker unit of claim 3 with above-mentioned length direction.
10. image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the described narrow speaker unit of claim 4 with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the outside that the inboard of the left and right directions of above-mentioned bottom, above-mentioned second vibration section are positioned at above-mentioned left and right directions.
11. image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the described narrow speaker unit of claim 5 with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the outside that the inboard of the left and right directions of above-mentioned bottom, above-mentioned second vibration section are positioned at above-mentioned left and right directions.
12. image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the described narrow speaker unit of claim 5 with above-mentioned length direction, makes above-mentioned first vibration section be positioned at the inboard that the outside of the left and right directions of above-mentioned bottom, above-mentioned second vibration section are positioned at above-mentioned left and right directions.
13. image display device, it is characterized in that, with the described narrow speaker unit of claim 5 with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion, make above-mentioned first vibration section be positioned at above-mentioned about downside, above-mentioned second vibration section of portion be positioned at above-mentioned about the upside of portion.
14. an image display device is characterized in that, with the described narrow speaker unit of claim 6 with above-mentioned length direction be above-below direction be configured to respectively front panel around the display frame about portion.
15. image display device, it is characterized in that, is the left and right end portions that left and right directions is configured to the bottom of the front panel around the display frame respectively with the described narrow speaker unit of claim 7 with above-mentioned length direction, makes above-mentioned second vibration section be positioned at the inboard that the outside of the left and right directions of above-mentioned bottom, above-mentioned first vibration section are positioned at above-mentioned left and right directions.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006083952 | 2006-03-24 | ||
| JP2006083952 | 2006-03-24 | ||
| JP2007020707 | 2007-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101043765A true CN101043765A (en) | 2007-09-26 |
Family
ID=38808885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710089396 Pending CN101043765A (en) | 2006-03-24 | 2007-03-23 | Narrow speaker unit and image display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101043765A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105282666A (en) * | 2015-08-28 | 2016-01-27 | 国光电器股份有限公司 | Miniature loudspeaker |
| CN108877597A (en) * | 2017-05-11 | 2018-11-23 | 乐金显示有限公司 | Show equipment |
| CN109040573A (en) * | 2017-06-08 | 2018-12-18 | 株式会社理光 | Method of compensating for hand shake and blur correcting device |
-
2007
- 2007-03-23 CN CN 200710089396 patent/CN101043765A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105282666A (en) * | 2015-08-28 | 2016-01-27 | 国光电器股份有限公司 | Miniature loudspeaker |
| CN105282666B (en) * | 2015-08-28 | 2019-01-01 | 国光电器股份有限公司 | Microspeaker |
| CN108877597A (en) * | 2017-05-11 | 2018-11-23 | 乐金显示有限公司 | Show equipment |
| US10820082B2 (en) | 2017-05-11 | 2020-10-27 | Lg Display Co., Ltd. | Display apparatus |
| CN108877597B (en) * | 2017-05-11 | 2021-01-08 | 乐金显示有限公司 | Display device |
| US11395055B2 (en) | 2017-05-11 | 2022-07-19 | Lg Display Co., Ltd. | Display apparatus |
| US11503391B2 (en) | 2017-05-11 | 2022-11-15 | Lg Display Co., Ltd. | Display apparatus |
| US11871170B2 (en) | 2017-05-11 | 2024-01-09 | Lg Display Co., Ltd. | Display apparatus |
| US11991492B2 (en) | 2017-05-11 | 2024-05-21 | Lg Display Co., Ltd. | Display apparatus |
| CN109040573A (en) * | 2017-06-08 | 2018-12-18 | 株式会社理光 | Method of compensating for hand shake and blur correcting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1164143C (en) | Loudspeaker device | |
| CN1905759A (en) | Loudspeaker damper and method of mounting loudspeaker damper | |
| CN1225763C (en) | Colour cathode-ray tube | |
| US20080085019A1 (en) | Display Device Comprising a Panel Acoustic Transducer, and Transparent Panel Acoustic Transducer | |
| CN1893732A (en) | Speaker system and speaker enclosure | |
| CN215956626U (en) | Display device and sound-emitting screen | |
| CN1961608A (en) | Loudspeaker | |
| CN1732710A (en) | Loudspeaker | |
| CN101031164A (en) | Speaker system with broad directivity | |
| CN1891009A (en) | Plane speaker having coil plate guide device | |
| CN1575035A (en) | Loudspeaker device | |
| CN109256070A (en) | A kind of panel display apparatus of screen Self-sounding | |
| CN1753576A (en) | Electrostatic ultrasonic transducer and ultrasonic speaker | |
| CN202713598U (en) | Dual-drive thin speaker | |
| CN1496189A (en) | Miniature all sound interval laudspeaker | |
| WO2019131041A1 (en) | Display apparatus | |
| KR100866558B1 (en) | Elongated speaker unit, and image dispaly device equipped with the same | |
| US8452032B2 (en) | Nested compound loudspeaker drive unit | |
| CN1734528A (en) | Flat panel display apparatus, stand and speaker apparatus | |
| KR101122204B1 (en) | Speaker device having speaker grille capable of displaying and speaker array using the same | |
| CN109862484A (en) | A kind of loudspeaker | |
| CN101043765A (en) | Narrow speaker unit and image display apparatus | |
| CN1653848A (en) | Bass reflex type speaker device, mounting structure and mounting method for speaker device | |
| CN1522094A (en) | Electroacoustic transducer, and electronic device using the same | |
| CN1819709A (en) | Speaker diaphragm, speaker unit and speaker apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070926 |