Sound-generating device, display device, sound-generating controlling method, and sound-generating controlling device

Patent metadata

Field	Value
Publication number	US-12177645-B2
Application number	US-202117800011-A
Country	US
Kind code	B2
Filing date	May 21, 2021
Priority date	Jun 8, 2020
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

A sound-generating device, a display device, a sound-generating controlling method, and a sound-generating controlling device are provided. The sound-generating device includes: a reflection plate which includes a first sound wave reflection face arranged towards a first direction; a plurality of main loudspeakers, the plurality of main loudspeakers are distributed in an array in a preset three-dimensional space, and the preset three-dimensional space is located at one side of the first sound wave reflection face towards a first direction; the plurality of main loudspeakers include first main loudspeakers with a sound-generating direction towards the first direction, and second main loudspeakers with a sound-generating direction towards a second direction, the second direction is an opposite direction of the first direction; and the sound waves emitted by the second main loudspeakers are transmitted to the first sound wave reflection face and can be reflected by the first sound wave reflection face.

First claim

What is claimed is:

1. A sound-generating device, comprising:
a reflection plate, including a first sound wave reflection face arranged towards a first direction;
a plurality of main loudspeakers, wherein the plurality of main loudspeakers is distributed in an array in a preset three-dimensional space, and the preset three-dimensional space is located at one side of the first sound wave reflection face towards the first direction; and
the plurality of the main loudspeakers, including first main loudspeakers with a direction of sound production towards the first direction, and second main loudspeakers with a direction of sound production towards a second direction, wherein the second direction is opposite to the first direction; and the sound waves emitted by the second main loudspeakers are transmitted to the first sound wave reflection face and can be reflected by the first sound wave reflection face;
wherein the plurality of main loudspeakers is arranged in a plurality of array layers, the plurality of array layers is arranged in sequence along the first direction, centers of sound-generating surfaces of the plurality of main loudspeakers in each of the plurality of array layers are arranged in an array in a plane parallel to the first sound wave reflection face.

2. The sound-generating device according to claim 1 , wherein the plurality of the array layers includes a first array layer and a second array layer arranged alternately, wherein the plurality of the main loudspeakers in the first array layer are all first main loudspeakers and the plurality of the main loudspeakers in the second array layer are all second main loudspeakers.

3. The sound-generating device according to claim 1 , wherein each of the plurality of array layers includes a plurality of first main loudspeakers and a plurality of second main loudspeakers respectively, and the plurality of the first main loudspeakers and the plurality of the second main loudspeakers are spaced apart and uniformly distributed from each other in the array layer.

4. The sound-generating device according to claim 1 , wherein an orthographic projection of the main loudspeaker of one of two adjacent array layers onto a plane of the other array layer does not overlap the main loudspeaker of the other array layer.

5. The sound-generating device according to claim 1 , wherein the sound-generating device includes a shell arranged around the preset three-dimensional space, a sound-generating outlet is provided on a first side face of the shell, and a second side face of the shell opposite to the first side face is the reflection plate,
wherein a portion of the first side face excluding the sound-generating outlet and other side faces of the shell are further provided with a second sound wave reflection face; and the other side is connected to the first side and the second side.

6. A display device, comprising a sound-generating device, wherein the sound-generating device comprises:
a reflection plate, including a first sound wave reflection face arranged towards a first direction;
a plurality of main loudspeakers, wherein the plurality of main loudspeakers is distributed in an array in a preset three-dimensional space, and the preset three-dimensional space is located at one side of the first sound wave reflection face towards the first direction; and
the plurality of the main loudspeakers, including first main loudspeakers with a direction of sound production towards the first direction, and second main loudspeakers with a direction of sound production towards a second direction, wherein the second direction is opposite to the first direction; and the sound waves emitted by the second main loudspeakers are transmitted to the first sound wave reflection face and can be reflected by the first sound wave reflection face;
wherein the plurality of main loudspeakers is arranged in a plurality of array layers, the plurality of array layers is arranged in sequence along the first direction, centers of sound-generating surfaces of the plurality of main loudspeakers in each of the plurality of array layers are arranged in an array in a plane parallel to the first sound wave reflection face.

7. The display device according to claim 6 , wherein the display device further includes a display component, the sound-generating device is arranged on a surface of the display component facing away from the display screen, or arranged inside the display component.

8. The display device according to claim 7 , wherein the display device further includes a plurality of sub-loudspeakers surrounding the display screen provided on the display component, and sound-generating directions of the sub-loudspeakers are arranged facing away from the display screen.

9. A sound-generating controlling method, applied to a display device comprising a sound-generating device, wherein the sound-generating device comprises:
a reflection plate, including a first sound wave reflection face arranged towards a first direction;
a plurality of main loudspeakers, wherein the plurality of main loudspeakers is distributed in an array in a preset three-dimensional space, and the preset three-dimensional space is located at one side of the first sound wave reflection face towards the first direction; and
the plurality of the main loudspeakers, including first main loudspeakers with a direction of sound production towards the first direction, and second main loudspeakers with a direction of sound production towards a second direction, wherein the second direction is opposite to the first direction; and the sound waves emitted by the second main loudspeakers are transmitted to the first sound wave reflection face and can be reflected by the first sound wave reflection face;
wherein the plurality of main loudspeakers is arranged in a plurality of array layers, the plurality of array layers is arranged in sequence along the first direction, centers of sound-generating surfaces of the plurality of main loudspeakers in each of the plurality of array layers are arranged in an array in a plane parallel to the first sound wave reflection face;
wherein the sound-generating controlling method comprises:
acquiring video data and audio data of audio and video data to be output;
performing feature classification on the audio data corresponding to a target output image in the video data, and determining an audio object in the audio data;
performing sound-generating object recognition according to the target output image, and determining a sound-generating object corresponding to the audio object;
determining sound-generating position coordinates of the sound-generating object when the target output image is 3D displayed on the display device; and
sending audio control information to the plurality of the main loudspeakers according to the sound-generating position coordinates, so that the positions of sound sources generated by the plurality of the main loudspeakers are located at the sound-generating position coordinates.

10. The sound-generating controlling method according to claim 9 , wherein the determining sound-generating object position coordinates of the sound-generating object when the target output image is 3D displayed on the display device comprises:
determining a depth image of the target output image when the target output image is 3D displayed on the display device;
determining plane coordinates of the sound-generating object according to the target output image, and determining depth coordinates of the sound-generating object according to the depth image; and
determining the sound-generating position coordinates according to the plane coordinates and the depth coordinates.

11. The sound-gener

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Zhang Shuo
• Shi Tiankuo
• Zhang Xiaomang
• Xi Yanhui
• Ji Zhihua
• Sun Yan
• Zhao Chenxi
• Peng Xiangjun
• Hou Yifan
• Zhang Lianghao
• Tian Li
• Liu Jing
• Sun Wei

Classifications

• H04S2400/11

  Positioning of individual sound objects, e.g. moving airplane, within a sound field (H04S2420/13 takes precedence) · CPC title

• H04R2499/15

  Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops · CPC title

• H04R2201/401

  2D or 3D arrays of transducers · CPC title

• H04R5/02 Primary

  Spatial or constructional arrangements of loudspeakers · CPC title

• H04R3/12

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title