CN103338602A - Display unit back cover and display unit - Google Patents

Abstract

The present invention provides a rear case of a display device and a display device. The rear case of the display device includes a casing, and the casing is provided with an accommodating chamber for accommodating a speaker, and the accommodating chamber is provided with a The sound output part for the sound of the horn. In the above solution, by forming an accommodating cavity capable of accommodating a speaker on the rear shell of the display device, and placing the speaker in the accommodating cavity, the effect of preventing acoustic short circuit and improving the sound quality of the speaker can be achieved; and, since the accommodating cavity directly It is formed on the back shell of the display device, only needs to improve the mold of the back shell of the display device, and does not need to install a speaker box separately, and the cost is low; in addition, using the above scheme, the speaker is installed in the accommodation chamber of the back shell of the display device, and assembled Simple.

Description

Display device rear case and display device

technical field

The invention relates to the technical field of liquid crystal display, in particular to a rear case of a display device and a display device.

Background technique

With the advantages of low power consumption, long service life, and high resolution, liquid crystal display devices have gradually entered thousands of households, and LCD TVs have gradually become mainstream TVs. The sound of the LCD TV is mainly through the built-in speaker. The LCD TV is mainly composed of the front frame, the LCD screen, the middle frame and the rear shell. The speaker of the LCD TV usually adopts the fixed method of "bottom output" or "rear output". "Bottom out" means that the diaphragm of the speaker is facing down, and the sound is transmitted from the lower part of the display device. "Back out" means that the diaphragm of the speaker is facing backward, and the sound is transmitted from the rear of the display device. FIG. 1 and FIG. 2 are structural schematic diagrams of a conventional liquid crystal TV back shell. Usually, the rear shell 1 of the LCD TV is provided with a sound hole 2 corresponding to the position of the speaker.

The built-in speakers of traditional LCD TVs are divided into box speakers and non-box speakers. As shown in Figure 3, the non-box speakers are usually directly fixed on the middle frame of the LCD TV. The diaphragm of the non-box speakers 11. When moving forward or backward, the sound waves are in antiphase, causing the sound waves to cancel each other out. There is a phenomenon of "acoustic short circuit", and the sound quality is poor, especially in the low frequency part; as shown in Figure 3 and Figure 4, while the cabinet The speaker is provided with a box 20 on the outside of the speaker, which can completely isolate the front and back of the speaker's diaphragm 11, so as to prevent "sound break", improve the low frequency effect, and the sound quality is better, but the box speaker needs to manufacture the speaker box separately. Body 20, and fixing the speaker with the cabinet to form a cabinet speaker, and then fixing it in the LCD TV, the cost is relatively high.

Contents of the invention

The object of the present invention is to provide a display device rear case and a display device. The rear case of the display device can be equipped with a speaker, which can achieve the purpose of improving the sound quality of the speaker and reducing the cost.

The technical scheme provided by the present invention is as follows:

A rear case of a display device includes a casing, the casing is provided with an accommodating chamber for accommodating a speaker, and the accommodating chamber is provided with a sound outlet for emitting the sound of the speaker.

Further, the accommodating chamber is formed by a box structure integrally formed with the housing, and the box structure is provided with an opening for the horn to be inserted into the box structure.

Further, the opening of the box structure is provided with a cover part that can cooperate with the opening to open or close the opening.

Further, the sound outlet part includes an opening of the box structure, and the cover part disposed at the opening is provided with a sound outlet hole; and/or,

The sound outlet part includes a sound outlet hole arranged on the box structure.

Further, the cover part includes a cover plate whose structure is adapted to the structure of the opening, and the cover plate is detachably connected in the opening.

Further, the box structure is provided with a fixing part for fixing the horn.

Further, the cover part is provided with a first screw hole for connecting with the box structure through screws and a second screw hole for connecting with the speaker through screws;

The fixing part includes a screw column for matching with the first screw hole, and the screw column is arranged inside the box structure, and its position corresponds to that of the first screw hole.

Further, the box structure is arranged at the bottom of the casing, and the opening direction of the box structure faces the bottom end of the casing.

Further, the casing includes: a front side opposite to a face shell of the display device; and a rear side opposite to the front side; the box structure is disposed on the rear side.

A display device, which includes a display screen, a speaker, and a rear case, the rear case adopts the display device rear case as described above; the speaker is placed in the accommodating chamber of the display device rear case, and the speaker The vibrating membrane is set facing the sound outlet of the accommodating chamber.

The beneficial effects of the present invention are as follows:

In the above solution, by forming an accommodating cavity capable of accommodating the speaker on the back shell of the display device, and placing the speaker in the accommodating cavity, the effect of preventing acoustic short circuit and improving the sound quality of the speaker can be achieved; and, since the accommodating cavity directly It is formed on the back shell of the display device, only needs to improve the mold of the back shell of the display device, and does not need to install a speaker box separately, and the cost is low; in addition, using the above-mentioned solution, the speaker is installed in the accommodating chamber of the back shell of the display device, and assembled Simple.

Description of drawings

FIG. 1 shows a schematic structural view of a liquid crystal TV back shell in the prior art;

FIG. 2 shows a structural schematic diagram of another viewing angle of the liquid crystal TV back shell in the prior art;

Figure 3 shows a schematic diagram of a non-cabinet speaker;

Fig. 4 shows the schematic diagram of the box speaker in the prior art;

Fig. 5 represents the back view of Fig. 2;

FIG. 6 is a schematic structural view of the rear case of the display device provided by the present invention;

Fig. 7 shows a schematic structural diagram of another viewing angle of Fig. 6;

FIG. 8 shows an exploded view of the assembly of the rear shell and the speaker of the display device provided by the present invention.

Detailed ways

In order to solve the problem in the prior art that the LCD TV adopts cabinet speakers with high cost and non-cabinet speakers with poor sound quality, the present invention provides a rear case of a display device, which can be used to install speakers, so that the display device While the sound quality of the speaker is improved, it will not increase the cost.

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

As shown in FIG. 6 to FIG. 8 , the rear case of the display device provided by the present invention includes a housing 100 , and the housing 100 is provided with an accommodating chamber 200 for accommodating a speaker 300 , and the accommodating chamber 200 is provided with a sound outlet for the sound of the horn 300 to be emitted.

Using the above solution, the speaker 300 of the display device can be placed in the accommodation chamber 200 of the rear case of the display device. When the speaker 300 is assembled, the sound output part of the box structure is located in front of the diaphragm of the speaker 300, and the accommodation cavity The chamber 200 can be set around the diaphragm of the speaker 300 in all directions to isolate the front and rear of the diaphragm of the speaker 300, and the sound in front of the diaphragm of the speaker 300 is transmitted from the sound outlet, so that the speaker 300 and the display device The accommodating chamber 200 forms a structure similar to a box speaker to prevent "acoustic short circuit", thereby achieving the purpose of improving the sound quality of the speaker; moreover, the accommodating chamber 200 is directly formed on the casing 100, only need When producing the casing 100, the production mold is improved and designed, and the display device rear case of the present invention can be integrally formed without the need to separately produce and assemble the sound box of the speaker 300. It can be seen that the display device rear case of the present invention While improving the sound quality of the speaker 300, the cost will not be increased; in addition, with the display device rear case of the present invention, the speaker 300 can be conveniently loaded into the accommodating chamber 200 of the display device rear case, and the operation is simple.

Preferred embodiments of the display device provided by the present invention will be described below.

In this embodiment, preferably, as shown in FIGS. 6 to 8 , the accommodating chamber 200 is composed of a box structure 201 integrally formed with the housing 100 , and the box structure 201 is provided with There is an opening, which can be used for installing the speaker 300 into the box structure 201 when the speaker 300 is installed. Of course, it can be understood that the accommodating chamber 200 may also adopt other structures, which will not be listed here.

In order to prevent external dust and the like from entering the box structure 201 through the opening of the box structure 201 and damaging the speaker 300, in this embodiment, the opening of the box structure 201 is equipped with a The cover part 400 of the opening. The rear case of the display device provided in this embodiment can use the cover part 400 to open the opening of the box structure 201 when assembling the speaker 300, and insert the speaker 300 into the box structure 201 from the opening, and when the assembly is completed Finally, the opening of the box structure 201 is sealed with the cover member 400 to prevent the speaker 300 from being damaged by external factors.

In this embodiment, preferably, as shown in FIG. 7 , the cover component 400 includes a cover plate whose structure is adapted to the structure of the opening, and the cover plate is detachably connected to the opening. In the above solution, the cover plate and the box structure 201 are detachably connected. When assembling the speaker 300, the cover plate is removed from the opening of the box structure 201, and the speaker 300 is inserted into the opening. Inside the box structure 201 , and after the assembly is completed, install the cover plate on the opening of the box structure 201 to prevent external factors from damaging the speaker 300 .

It should be noted that, in this embodiment, the opening of the cover member 400 and the box structure 201 is connected in a detachable manner, but in practical applications, the connection method between the cover member 400 and the opening is not limited to this. It can be connected in other ways, as long as it is ensured that the cover part 400 can open or close the opening as required, for example: one side of the cover part 400 is movably connected with one side edge of the opening through a hinge, and the cover part 400 is similar to the opening A "door", when the speaker 300 is assembled or when the speaker 300 needs to be repaired or replaced, the cover part 400 is opened to open the opening, and when the assembly is completed, the cover part 400 is closed to close the opening; or, The cover part 400 is connected to the opening by a mobile connection. When the opening needs to be sealed, the cover part 400 is pushed to move to the opening, and when the opening needs to be opened, the cover part 400 is pushed to move out of the opening; The connection manners of the cover member 400 and the opening are listed one by one again.

In addition, it should be noted that, in this embodiment, the cover member 400 is preferably a cover plate structure. In practical applications, the cover member 400 may also adopt other structures, which will not be listed here.

In this embodiment, preferably, the sound outlet part on the box structure 201 is realized through the sound outlet hole 202 of the cover part 400 at the opening. Using the above scheme, as shown in Figure 7, when the speaker 300 is installed, the diaphragm of the speaker 300 should be set facing the cover part 400, so that the sound of the speaker 300 can be transmitted through the sound hole 202 on the cover part 400. out.

Of course, it can be understood that in practical applications, the opening of the box structure 201 may not be provided with the cover member 400. When the speaker 300 is installed, the diaphragm of the speaker 300 should be set towards the opening, so that the entire opening serves as a box. The sound outlet of the body structure 201; in addition, the sound outlet hole 202 can also be set on the side wall of the box structure 201 as the sound outlet, and the specific position and form of the sound outlet are not limited here.

In addition, in this embodiment, the box structure 201 is further provided with a fixing part capable of fixing the speaker 300 inside the box structure 201 . Preferably, in this embodiment, the speaker 300 is fixed inside the box structure 201 in the following manner:

As shown in Figures 6 to 8, the cover member 400 is provided with a first screw hole 401 for connecting with the box structure by screws and a second screw hole for connecting with the horn 300 by screws (Fig. not marked in); the fixing part includes a screw column 205 for matching with the first screw hole 401, the screw column 205 is arranged inside the box structure 201, and its position is the same as that of the first screw hole 401 The positions of the screw holes 401 are corresponding.

Using the above scheme, the horn 300 is provided with a mounting hole, and the second screw hole and the mounting hole of the horn 300 are threaded with screws, so that the horn 300 can be fixed on the cover part 400, and then the first screw hole 401 and the screw column Screws are inserted inside to fix the cover part 400 at the opening of the box structure 201 , thereby fixing the speaker 300 in the box structure 201 .

Of course, it can be understood that in practical applications, the speaker 300 can also be fixed in the box structure 201 in other ways, for example, the speaker 300 is directly connected to the screw column in the box structure 201 through screws, etc., which will not be described one by one here. List; In addition, the cover component 400 can also be installed on the opening of the box structure 201 in other detachable ways, for example, the cover component 400 is detachably installed on the opening of the box structure 201 in a snap-fitting manner.

In addition, for display devices, especially LCD TVs, the speaker 300 is usually fixed in a "bottom output" or "rear output" manner. "Bottom out" means that the diaphragm of the speaker 300 faces downward, and the sound is emitted from the lower part of the display device. "Back out" means that the diaphragm of the speaker 300 faces backward, and the sound is emitted from the rear of the display device. It should be noted that the orientations of "down", "rear", "bottom" and "rear" referred to in this specification are consistent with the orientations observed by the human perspective under the normal display working state of the display device.

In the display device provided by this embodiment, preferably, as shown in FIG. The bottom end of the housing 100. Using the above solution, the speaker 300 of the display device assembled from the back shell of the display device can be fixed in a "bottom out" manner, as shown in FIG. And the opening of the box structure 201 is facing downward, and the diaphragm of the speaker 300 is fixed in the box structure 201 facing downward, so that the speaker 300 can be fixed on the rear case of the display device in a "bottom-out" fixing method.

Of course, it can be understood that in practical applications, the opening direction of the box structure 201 can also be towards the rear of the housing 100, and the sound hole 202 is not provided on the cover member 400 at the opening, but the sound hole 202 is provided on the box structure 201. A sound hole 202 is opened on the bottom side wall of the speaker 300, and the diaphragm of the speaker 300 is fixed in the box structure 201 downwards. It is also possible to fix the speaker 300 on the back shell of the display device in a "bottom-out" fixing method.

In addition, in practical applications, the opening of the box structure 201 can also face to the rear of the rear case of the display device. Correspondingly, the speaker 300 can be used as " It is fixed on the rear shell of the display device by the fixing method of "back out". Alternatively, the opening of the box structure 201 may also be towards the bottom of the housing 100, and the sound hole 202 is not provided on the cover member 400, and the sound hole 202 is only provided on the rear side wall of the box structure 201, and Fixing the diaphragm of the speaker 300 in the box structure 201 facing backward can also realize fixing the speaker 300 on the rear shell of the display device in a "rear-out" fixing manner.

In addition, preferably in this embodiment, there are two box structures 201 , which are respectively distributed at two ends of the bottom of the casing 100 . Of course, in practical applications, the number of box structures 201 can be adjusted.

Generally, the casing 100 of the rear case of the display device includes: a front side opposite to the front case of the display device and located on a side close to the display screen of the display device; The rear profile of the display side. Since the front side of the rear case of the display device is fastened with the front case of the display device, the display screen and the like are arranged between the rear case and the front case, in order to avoid interference between the box structure 201 on the rear case of the display device and the display screen, as shown in Figure 6 As shown in FIG. 8 , in this embodiment, preferably, the box structure 201 is arranged on the rear side of the housing 100 .

In addition, as shown in FIGS. 6 to 8 , heat dissipation holes 203 may also be provided on the side walls of the box structure 201 , and heat dissipation holes 203 for use in speakers and display devices may also be provided on the side walls of the box structure 201 . Vias 204 through which components are electrically connected.

In addition, it should be noted that the display device rear case provided by the present invention may preferably be a liquid crystal television rear case, and of course may also be a liquid crystal display rear case or a rear case of other liquid crystal display devices.

In addition, the present invention also provides a display device, which includes a display screen, a speaker 300 and a rear case, the rear case adopts the rear case of the display device as described above; the speaker 300 is placed on the rear case of the display device Inside the box structure 201 , and the diaphragm of the speaker 300 is set facing the sound outlet of the box structure 201 . The display device may be a liquid crystal television, a liquid crystal display, or the like.

The above is the preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be regarded as the present invention. protection scope of the invention.

Claims (10)

1. A rear case of a display device, comprising a casing, characterized in that, The casing is provided with an accommodating cavity for accommodating the horn, and the accommodating cavity is provided with a sound outlet for emitting the sound of the horn. 2. The display device rear case according to claim 1, characterized in that, The accommodating chamber is formed by a box structure integrally formed with the housing, and the box structure is provided with an opening for the horn to be inserted into the box structure. 3. The rear case of the display device according to claim 2, characterized in that, The opening of the box structure is provided with a cover part that can cooperate with the opening to open or close the opening. 4. The rear case of the display device according to claim 3, characterized in that, The sound outlet part includes an opening of the box structure, and the cover part disposed at the opening is provided with a sound outlet hole; and/or, The sound outlet part includes a sound outlet hole arranged on the box structure. 5. The rear case of the display device according to claim 3, characterized in that, The cover component includes a cover plate whose structure is adapted to the opening, and the cover plate is detachably connected in the opening. 6. The rear case of the display device according to claim 5, characterized in that, The box structure is provided with a fixing part for fixing the horn. 7. The rear case of the display device according to claim 6, characterized in that, The cover part is provided with a first screw hole for connecting with the box structure through screws and a second screw hole for connecting with the horn through screws; The fixing part includes a screw column for matching with the first screw hole, and the screw column is arranged inside the box structure, and its position corresponds to that of the first screw hole. 8. The display device rear case according to claim 2, characterized in that: The box structure is arranged at the bottom of the casing, and the opening direction of the box structure faces the bottom end of the casing. 9. The rear case of the display device according to claim 2, characterized in that, The casing includes: a front side opposite to a face shell of the display device; and a rear side opposite to the front side; wherein the box structure is arranged on the rear side of the casing. 10. A display device comprising a display screen, a loudspeaker and a rear shell, characterized in that, The rear case adopts the display device rear case according to any one of claims 1 to 9; The speaker is placed in the accommodating chamber of the rear case of the display device, and the diaphragm of the speaker is arranged facing the sound output part of the accommodating chamber.

Images