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Flat panel loudspeaker, display device and display equipment

A flat panel speaker and sound technology, applied in the field of speakers, can solve problems such as poor sound quality

Pending Publication Date: 2021-09-14
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a flat-panel speaker, a display device and a display device to solve the technical problem of poor sound quality in some frequency ranges in the prior art

Method used

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  • Flat panel loudspeaker, display device and display equipment
  • Flat panel loudspeaker, display device and display equipment
  • Flat panel loudspeaker, display device and display equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 2 As shown, in this embodiment, the panel speaker is used to output the signal to be played as sound. The panel speaker includes a plate structure 10 , a voice coil 20 , a voice coil frame 30 , and a magnetic field generating device 40 . Among them, the number of voice coils 20 is multiple, and multiple voice coils 20 are concentrically arranged; the number of voice coils 20 and voice coil bobbin 30 is equal, and one-to-one correspondence; each voice coil 20 is wound on the corresponding voice coil bobbin 30 and is electrically connected to the magnetic field generating device 40; the voice coil bobbin 30 corresponding to each voice coil 20 is installed and fixed on the board structure 10. A plurality of voice coils 20 are divided into a first voice coil 21 and a second voice coil 22, the number of the first voice coil 21 is one; the first voice coil 21 is used to excite the first signal into sound, the so-called first signal is Refers to all frequency...

Embodiment 2

[0059] In this example, if Figure 4 and Figure 5 As shown, the magnetic field generating device 40 includes three magnets 41 arranged at intervals; the three magnets 41 are arranged at intervals; that is, each magnet 41 is concentrically sleeved inside by at least one magnet 41, or at least one magnet 41 is concentrically sleeved Internal.

[0060] In this embodiment, the number of voice coils 20 is two, and the two voice coils 20 are respectively the first voice coil 21 and the second voice coil 22, wherein the first voice coil 21 is arranged on the outer magnet 41 and the middle magnet 41, and is electrically connected to the magnet 41 located in the outer ring; the second voice coil 22 is set in the gap between the magnet 41 of the inner ring and the magnet 41 in the middle, and is electrically connected to the magnet 41 located in the middle .

[0061] It should be noted that, as far as the implementation of the present invention is concerned, simple transformations c...

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Abstract

The invention relates to a flat panel loudspeaker, a display device and display equipment. The flat panel loudspeaker comprises a plate structure, voice coils, voice coil frameworks and a magnetic field generating device. The number of the voice coils is multiple, and the multiple voice coils are concentrically arranged. The voice coils and the voice coil frameworks are equal in number and are in one-to-one correspondence; each voice coil is wound on the corresponding voice coil framework and is electrically connected with the magnetic field generating device; the voice coil framework corresponding to each voice coil is fixedly arranged on the plate structure; the plurality of voice coils are divided into a first voice coil and a second voice coil, and the number of the first voice coil is one; the first voice coil is used for exciting a first signal into sound, and the first signal is a signal of all frequency bands in a signal to be played; and each second voice coil is used for exciting a second signal into sound, and each second signal is a specific frequency band signal in the signals to be played.

Description

technical field [0001] The present invention relates to the technical field of loudspeakers, and in particular to a flat-panel loudspeaker, a display device including the flat-panel loudspeaker, and a display device including the display device. Background technique [0002] Flat-panel speakers have the advantages of good directivity, small sound attenuation, and high fidelity. Therefore, in recent years, flat-panel speakers have been widely used in home theater systems, multimedia computer audio and other fields. [0003] During the working process of the flat-panel speaker, there will be a problem of uneven radiation sound pressure in the effective frequency band, resulting in deterioration of sound quality. Specifically, with figure 1 Take the frequency response curve shown as an example. The frequency response curve a is the frequency response curve of an ideal loudspeaker, which can radiate sound pressure uniformly in the effective frequency band and produce a flat tar...

Claims

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Application Information

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IPC IPC(8): H04R9/04H04R9/02H04R9/06
CPCH04R9/045H04R9/046H04R9/025H04R9/06H04R2499/15H04R2209/041
Inventor 姬雅倩于静王雷韩艳玲李佩笑勾越
Owner BOE TECH GRP CO LTD
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