JP2006229605A - Equipment having loudspeaker and display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide AV equipment and a planar display unit for easily reinforcing bass and radiating the reinforced bass. <P>SOLUTION: The display unit 10 is divided into a video part 26 having an internal space, and a voice part 27 equipped with a loudspeaker 17 and outputting a voice emitted from the loudspeaker 17 to the outside. The display unit 10 is equipped with a communicating means 30 for internally communicating the video part 26 with the voice part 27, and the internal space of the video part 26 is used as an acoustic capacity. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present application relates to a display device including a speaker that outputs sound.

  In recent video equipment, slimming and space saving tend to be regarded as important. Further, since the flat display device such as a plasma display device is thin, the volume of the speaker cabinet is small.

  Furthermore, in order to make use of the design of the flat display device, speakers and cabinets in which the speakers are arranged are also being downsized.

  FIG. 1 shows an example of a conventional flat display device. As shown in the figure, a conventional flat display device 40 includes a video display space 41 including a display panel 41a and the like for displaying video, and a speaker 42, and outputs sound emitted by the speaker to the outside. Audio output space 43, and the video display space 41 and the audio output space 43 are separated by a partition 44. In the video display space 41, members for displaying video such as a display panel and a substrate are arranged. Moreover, although not shown in figure, the opening for outputting the audio | voice emitted from a speaker to the exterior is formed in the right and left of the lower surface of the flat type display apparatus 40 (patent document 1).

JP 2002-218358 A

  However, cabinet capacity reduction and speaker miniaturization are disadvantageous for bass reproduction and result in insufficient bass reproduction, so it is not possible to perform sufficient bass reproduction and it is difficult to obtain powerful sound. ing.

  On the other hand, the signal source has been improved in quality, and further improvement in the bass reproduction capability is desired.

  The problem to be solved by the present application includes the above-described problem as an example.

  Accordingly, an object of the present application is to provide an AV device and a flat display device that can easily radiate and emit bass.

  Hereinafter, the present application will be described. In addition, in order to make an understanding of this application easy, the reference sign of an accompanying drawing is attached in brackets, However, This application is not limited to the form of illustration.

  The apparatus having the speaker according to claim 1 is divided into an interior so as to have a plurality of spaces, and the speaker is provided in at least one space, and the one space is configured to receive sound emitted from the speaker. A device having a speaker functioning as a space for outputting to the outside, comprising a communication means for internally communicating the one space and another space, and using the other space as an acoustic volume To do.

  The display device according to claim 2 is divided into a video unit having a space inside and a sound unit (27) that includes a speaker (17) and outputs sound emitted from the speaker to the outside. The display device (10) includes communication means (25a, 30) for internally communicating the video unit and the audio unit, and uses the internal space of the video unit as an acoustic volume.

  The flat display device according to claim 3 includes a display panel (12) for displaying an image, a case main body (13) covering an outer periphery and a rear surface of the display panel, and an interior of the case main body. In a display device including a video unit including a panel and having a space inside, and a partition (25) that is provided with a speaker and that outputs a sound emitted from the speaker to the outside, and a partition (25). The partition is formed with a hole (25a) that communicates the inside of the video unit and the inside of the audio unit.

  Hereinafter, with reference to FIG. 2 thru | or FIG. 9, each embodiment of the flat type display apparatus by this application is described. The flat display device body 11 described below refers to a thin video display device using a PDP (plasma display panel), a liquid crystal panel, an EL (electro luminescence) panel, or the like.

  FIG. 2 is a front view of the flat display device, and FIG. 3 is a structural diagram of the flat display device. 4 to 9 show another embodiment of the flat display device of FIGS. 2 and 3, FIG. 4 is a structural diagram of the flat display device of another embodiment, and FIG. 5 shows another embodiment. FIG. 6 is a configuration diagram of the flat display device shown in FIG. 5, FIG. 7 is a front view of the flat display device of another embodiment, and FIG. 8 is a plan view of the other embodiment. 8A is a configuration diagram, FIG. 8B is an attachment state diagram of FIG. 8A, FIG. 9 shows a flat display device of another embodiment, and FIG. ) Is a configuration diagram, and FIG. 9B is an attachment state diagram of FIG. In the following description, the front and back in FIG. 2 are described as front and back for convenience, and the vertical and horizontal directions are expressed as vertical and horizontal for the flat display device for convenience.

  As shown in FIGS. 2 and 3, the flat display device 10 of this embodiment includes a flat display device body 11 and a table 20 on which the flat display device body 11 is placed. .

  The flat display device main body 11 includes a display panel 12 for displaying an image made of a PDP, and a case main body 13 that covers an outer periphery and a rear surface of the display panel 12. Note that a substrate 14 or the like on which an electric circuit is formed is disposed on the back surface of the display panel 12. The substrate 14 includes various circuits necessary for functioning as a television receiver in addition to the drive circuit of the display panel 12.

  Below the front surface of the flat display device body 11, there are openings 15, 15 in which a plurality of small-diameter holes are formed on the left and right. A speaker unit 16 that outputs sound is disposed on the back surface of the opening 15.

  The case body 13 is formed of a molded product and covers the back of all components such as the display panel 12, the substrate 14, and the speaker unit 16.

  The speaker unit 16 includes, for example, a speaker main body 17 including a diaphragm for emitting sound, an attachment member 18 for attaching the speaker main body 17 to another member, and an audio signal input to the speaker main body 17. Input terminal 19. Further, the speaker body 17 and the input terminal 19 are electrically connected, and the input terminal 19 is electrically connected to an audio output signal output from the substrate 14. Further, the speaker body 17, the mounting member 18, and the input terminal 19 are integrally formed. The speaker unit 16 is attached to the case body 13 by the attachment member 18.

  For example, a dynamic speaker is used as the speaker body 17, but the speaker body 17 may be any type. The speaker body 17 is appropriately selected in consideration of the intended use, the space where the speaker body 17 is installed, and the like.

  In addition, a partition body 25 that is divided into upper and lower portions is provided inside the case body 13. Inside the case main body 13 is a space (hereinafter referred to as “video space portion 26”) serving as a video display section for displaying video composed of the display panel 12, the substrate 14 and the like, and a speaker unit. It is divided into a space (hereinafter referred to as “audio space unit 27”) as an audio output unit that outputs 16 audio.

  Generally, the bass reproduction capability of the speaker unit 16 is determined by the bass reproduction capability of the cabinet in which the speaker unit 16 is installed only. Therefore, in general, in a thin flat display device such as a plasma display device, the size of the cabinet is inevitably reduced due to its structure, and the bass reproduction capability is lowered.

  In the present application, in view of the above-described problems, a part of the partition 25 is provided with a hole 25a that allows the video space portion 26 and the audio space portion 27 to communicate with each other. Further, the hole 25 a is provided with a duct 30 extending vertically downward with respect to the partition body 25. In this way, it is possible to cause the video space 26 to function as an acoustic volume for reproducing sound output from the speaker body 17. In the flat display device 10 according to the present embodiment, a specific frequency band is adjusted by the duct 30 using the internal space of the video space portion 26. Specifically, the length of the duct 30 is adjusted so as to raise the peak of a specific frequency band (so as to resonate at a specific frequency) according to the size of the video space portion 26. ing. In the flat display device 10 according to the present embodiment, the length of the duct 30 is adjusted (set) so that the resonance frequency of the duct 30 coincides with the resonance frequency of the image space portion 26 in particular.

  By doing so, the flat display device 10 of the present embodiment can increase the peak of a specific frequency band by adjusting the length of the duct 30 and output it, so that the bass can be easily enhanced.

  The video space unit 26 of the present embodiment functions as the video unit of the present application, and the audio space unit 27 of the present embodiment functions as the audio unit of the present application. Moreover, the hole 25a and the duct 30 of this embodiment function as a communication means of this application.

  Next, the operation when sound is output in the flat display device of the present application will be described.

  When an audio signal is supplied from the substrate 14 to the input terminal 19 of the speaker unit 16, reproduced sound is emitted from the speaker body 17. The released reproduced sound resonates with the length of the video space 26 and the duct 30 functioning as an acoustic volume, and is transmitted to the opening 15 while transmitting the resonated reproduced sound, and the reproduced sound is transmitted from the opening 15. Released to the outside.

  As shown in FIG. 4, in the flat display device 10 </ b> A, instead of the duct 30 of the embodiment shown in FIG. 3, a hole 35 may be simply formed in a part of the partition 25. In this case, by adjusting the size of the hole 35 according to the size of the video space portion 26, the peak of a specific frequency band can be raised to enhance the bass.

  In addition, the video space part 26 of this embodiment comprises the video part of this application, the audio | voice space part 27 comprises the audio | voice part of this application, and the hole 25a and the duct 30 comprise the communication means of this application.

  As described above, the flat display device 10 of the present embodiment forms the hole 25a in a part of the partition 25 that partitions the video space part 26 and the audio space part 27, and includes the duct 30 in the hole 25a. The video space is made to function as an acoustic volume of the audio space. Further, the length of the duct 30 is set so that the resonance frequency of the duct 30 matches the resonance frequency of the image space portion 26. Specifically, the flat display device 10 of the present embodiment uses the video space portion 26 as an acoustic volume, and the duct 30 disposed so as to communicate the video space portion 26 and the audio space portion 27. The length is adjusted.

  In this way, the flat display device 10 of the present embodiment can enhance the low frequency efficiency, and functions as a flat display device having a sufficient low frequency reproduction function.

  Further, as shown in FIGS. 5 and 6, the flat display device 10 of the present embodiment includes a case main body 31 that functions as the video space portion 26 and a case main body 32 that functions as the audio space portion 27. The case main body 31 functioning as the video space section 26 may be placed on the case main body 32 functioning as the audio space section 27. The case bodies 31 and 32 are each formed in a box shape. As described above, the flat display device 10 </ b> A includes the video space unit 26 and the audio space unit 27 as separate bodies, each of which functions separately and independently and is configured to be separable.

  In this case, as shown in FIG. 6, a hole 31 a is formed on the surface of the lower end portion of the case body 31 that functions as the video space portion 26 that contacts the case body 32 that functions as the audio space portion 27. A hole 32a is formed on the surface of the upper end portion of the case main body 32 functioning as the audio space section 27 in contact with the case main body 31 functioning as the video space section 26. The holes 31 a and 32 a are formed in the same shape, and the holes 31 a and 32 a are formed when the case body 31 that functions as the video space portion 26 is placed on the case body 32 that functions as the sound space portion 27. They are formed to overlap each other. The shape of the holes 31a and 32a may be any shape such as a circular shape or a rectangular shape. Although not shown, the case main body 32 functioning as the audio space portion 27 and the case main body 31 functioning as the video space portion 26 are fixed by screwing using a plate-shaped attachment or the like. , 32 are formed at appropriate positions, and hooks are hooked into the holes and fixed. The fixing method may be any method.

  In addition, although not shown in the drawings, the holes 31a and 32a are provided with a lid such as a plate for closing the holes 31a and 32a, and the lid is removed when the image space 26 functions as an acoustic volume. When the video space portion 26 and the audio space portion 27 function separately and independently, the lid body is attached to the holes 31a and 32a, and the holes 31a and 32a are closed and used.

  Further, as shown in FIG. 7, the flat display device 10 of the present embodiment is a plane in which a case main body 33 that functions as an audio space portion is fixed to both sides of the case main body 31 that functions as a video space portion. The type display device 10B may be used. In such a case, although not illustrated, as in the embodiment of FIGS. 5 and 6, both side portions of the case body 31 functioning as the video space portion 26 that contacts the case body 33 functioning as the audio space portion 27. A hole 31a is formed on the surface, and a hole 32a is formed on the side surface of the case main body 33 functioning as the audio space portion 27 in contact with the case main body 31 functioning as the video space portion 26 so as to overlap the hole. What is necessary is just to form.

  Further, in combination with the embodiments shown in FIG. 5 to FIG. It does not matter even if it is the structure which can be attached or removed to each side.

  As described above, in the flat display devices 10A and 10B, the video space portion 26 and the audio space portion 27 are configured as separate bodies, and the audio space portion 27 is formed on both the lower side or the left and right sides of the flat display device body 11. If it is configured to be freely installable on the side, it is convenient because the user can freely select the arrangement form of the audio space unit 27 with respect to the video space unit 26 in consideration of the environment of the installation location.

  Further, as shown in FIG. 8, the flat display device 10 according to the present embodiment is configured such that the video space unit 26 and the audio space unit 27 are provided separately, and the video space unit 26 is arranged on the audio space unit 27. In this case, the case main body 32 having the speaker 17 may be provided with a substantially cylindrical end body 33 extending in the upward vertical direction from the upper end portion of the case main body 32. The end body 33 functions as a duct that communicates the inside of the audio space portion 27 and the video space portion 26, and functions as the video space portion 26 through the hole 31 a of the case body 31 that functions as the video space portion 26. The case body 31 is formed so as to extend inside.

  In this way, the volume of the audio space 27 cannot be increased, and there are many components such as the speaker 17 and a member for mounting the speaker 17, and the end body 33 cannot be formed in the audio space 27. This is effective when the end body 33 is disturbed when the end space 33 is present in the audio space 27.

  Further, as shown in FIG. 9, the flat display device 10 of the present embodiment includes a video space unit 26 and an audio space unit 27 as separate bodies, and the video space unit 26 is arranged on the audio space unit 27. In this case, the case main body 32 having the speaker 17 may be provided with a substantially cylindrical end body 34 that extends downward from the upper end of the case main body 32 in the vertical direction. The end body 34 functions as a duct that allows the audio space 27 and the video space 26 to communicate with each other, and is formed to extend inside the case body 32 that functions as the audio space 27.

  In this way, there are many parts such as the substrate 14 in the video space portion 26, and the end body 34 functioning as a duct cannot be formed in the video space portion 26, or the end body 34 is formed in the video space portion. It is effective when it is in the way when it exists in H.26.

  In the embodiment shown in FIGS. 8 and 9, the end bodies 33 and 34 are provided in the case main body 32 that functions as the audio space section 27, but the end bodies 33 and 34 are used as the video space section 26. You may make it provide in the case main body 31 which functions.

  Note that the lower end surface of the case main body 31 functioning as the video space portion 26 and the upper end surface of the case main body 32 functioning as the audio space portion 27 of the present embodiment function as a partitioning body of the present application. The parts 33 and 34 function as a duct of the present application.

  Furthermore, the present application is not limited to the above embodiment, and may be implemented in various forms. For example, the present invention can be applied to all devices having a speaker such as a display device such as a cathode ray tube television, a cassette with a radio, a CD player, and an MD player.

It is a structural diagram of a conventional flat display device. It is a front view of the flat type display apparatus of this application. It is a structural diagram of the flat display device of the present application. It is a block diagram which shows the flat type display apparatus of other embodiment. It is a front view which shows the flat type display apparatus of other embodiment. FIG. 6 is a configuration diagram of the flat display device shown in FIG. 5. It is a front view which shows the flat type display apparatus of other embodiment. FIG. 8A is a configuration diagram, and FIG. 8B is an attachment state diagram of FIG. 8A, showing a flat display device of another embodiment. FIG. 9A is a configuration diagram, and FIG. 9B is an attachment state diagram of FIG. 9A, showing a flat display device according to another embodiment.

Explanation of symbols

10, 10A, 10B Flat display device 12 Display panel 13 Case body 17 Speaker 25 Partition 25a Hole 26 Video space 27 Audio space 30 Duct

Claims (11)

The interior is divided so as to have a plurality of spaces, and a speaker is provided in at least the one space, and the one space functions as a space for outputting the sound emitted from the speaker to the outside. A device having
A device having a speaker, comprising a communication means for communicating the one space and another space inside, and using the other space as an acoustic volume.   In a display device that is divided into a video unit having a space inside and a voice unit that includes a speaker and outputs sound emitted from the speaker to the outside, the video unit and the voice unit communicate with each other internally. A display device comprising: a communication unit configured to use the internal space of the video unit as an acoustic volume. A display panel for displaying images,
A case main body that covers the outer periphery and the rear surface of the display panel;
A partition that divides the inside of the case body into a video unit including the display panel and having a space inside, and a sound unit including a speaker and outputting sound emitted from the speaker to the outside;
In a display device comprising:
The display device according to claim 1, wherein a hole that communicates the inside of the video unit and the inside of the audio unit is formed in the partition.   The display device according to claim 3, wherein a duct extending in a vertical direction with respect to the partition is formed in the hole.   The display device according to claim 4, wherein the duct is used as an acoustic tube.   The length of the duct or the size of the hole is set according to the volume of the video part so that the bass of the sound radiated from the voice part is enhanced. Display device.   6. The display device according to claim 4, wherein the length of the duct is set so that a resonance frequency of the duct matches a resonance frequency of a space of an image portion.   The display device according to claim 3, wherein the video unit and the audio unit are separable.   The display device according to claim 4, wherein the duct extends from the partition toward the inside of the video unit.   The display device according to claim 4, wherein the duct extends from the partition toward the inside of the audio unit.   The display device according to claim 3, wherein the audio unit is provided on a lower side of the video unit or on both left and right sides of the video unit.

Images