Patent Application
20180103305
The invention is related to a speaker assembly, and more particularly to a speaker assembly for display device.
The speaker assembly is an important component in the display device. The max sound pressure level (max SPL) of one speaker assembly is positively related to the volume of the speaker assembly. However, if the volume of one speaker assembly is increased, the volume or the thickness of the display device utilizing the speaker assembly will be increased as well. Hence, how to increase the max SPL of one speaker assembly without increasing the volume thereof, or how to maintain the max SPL of one speaker assembly while decreasing the volume thereof is a problem to be solved.
In one embodiment of the disclosure, a speaker assembly has a mounting box and a speaker. The mounting box has one bottom plate, a first sidewall, a second sidewall, and a third sidewall. The speaker is mounted on the mounting box. The third sidewall is between the first sidewall and the second sidewall, and the speaker and the three sidewalls define an opening.
In another embodiment of the disclosure, a display device has a casing, a backlight module and the aforementioned speaker assembly. The backlight module is in the casing, and the speaker assembly is located in a space defined by the casing and the backlight module.
In order to make the aforementioned and other features of the present invention more comprehensible, several embodiments accompanied with figures are described in detail below.
The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus are not limitative of the present invention, and wherein:
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawings.
Please refer to
The speaker 1200 and the speaker 1300 are installed on the edge of the bottom plate 1140, so the speaker 1200, the speaker 1300, the sidewalls 1110˜1130 together define an opening 1150.
Please now refer to
In one embodiment, the mounting box 1100, the speaker 1200, the speaker 1300, and the back surface 2210 of the backlight module 2200 together form a resonant cavity. Hence, the shape of the back surface 2210 conforms to the shape of the first sidewall 1110, the second sidewall 1120, the third sidewall 1130, the speaker 1200, and the speaker 1300.
In one embodiment, the height H3 of the third sidewall 1130 is less than the height HS of the speaker 1200 or the speaker 1300. In another embodiment, the height H3 of the third sidewall 1130 is less than the average height H1 of the first sidewall 1110 or the average height H2 of the second sidewall 1120. In one embodiment, the top surface of the first sidewall 1110 is uneven so as to conform to the shape of the back surface 2210. Similarly, the top surface of the second sidewall 1120 is uneven so as to conform to the shape of the back surface 2210.
In one embodiment, to reduce the noise result from the vibration and the collision between the casing 2100 and the speaker assembly 1000, the speaker assembly 1000 further has a first fixing component 1400 directly connected and fixed to the first sidewall 1110 and a second fixing component 1500 directly connected and fixed to the second sidewall 1120. In one embodiment, the first fixing component 1400 is a screw hole so that the first fixing component 1400 can be fixed on the casing 2100 by a screw. Similarly, the second fixing component 1500 can also be fixed on the casing 2100 by a screw. In another embodiment, the first fixing component 1400 can be fixed on the back surface 2210 of the backlight module 2200 by a screw. The second fixing component 1500 can be fixed on the back surface 2210 of the backlight module 2200 by a screw.
In another embodiment, the speaker assembly 1000 may have only one speaker when the space left by the back surface 2210 and the casing 2100 is not enough for the speaker assembly with two speakers.
In another embodiment, the speaker assembly 1000 may have no aforementioned fixing component. Instead, please refer to
In yet another embodiment, please refer to
Accordingly, when the speaker 1200 and the speaker 1300 are driven by electric currents to vibrate, the collision between the speaker assembly 1000″ and the casing 2100 or the collision between the speaker assembly 1000″ and the back surface 2210 may be reduced by the fixing mechanism aforementioned. That is, the noise result from the vibration and the collision between devices may be reduced.
Please now refer to
In yet another embodiment, please refer back to
While designing a speaker assembly of the embodiment of the disclosure for a display device, one having ordinary skill in the art may firstly measure the space left by the casing 2100 and the backlight module 2200. Then, according to the shape of the space, he or she may design a speaker assembly as shown in
In summary, the opening defined by the sidewalls and the speakers provides an option for installation of the supplemental magnets. With the opening of the speaker assembly, the display device incorporating the disclosed speaker assembly outputs a higher sound pressure than that from a display incorporating a conventional speaker assembly. Thus, the disclosed speaker assembly brings better sound quality to consumers. In addition, due to the fact that the opening formed in the disclosed speaker assembly fits to the back surface of the backlight module, the display device incorporating the disclosed speaker assembly has a thinner screen thickness and less weight than conventional displays.
