CN113329197A

CN113329197A - Solid immersion type OLED audio system

Info

Publication number: CN113329197A
Application number: CN202110520804.4A
Authority: CN
Inventors: 李中华
Original assignee: NARUEMS
Current assignee: NARUEMS
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-08-31

Abstract

The invention relates to the field of display equipment, in particular to a solid immersion type OLED audio system which comprises an OLED display panel for a TV, a vibrator, an amplifier and a controller, wherein the vibrator is arranged behind the OLED display panel and generates sound vibration, and the controller receives a sound signal of the OLED display panel through a sound output terminal and transmits the sound signal to the vibrator through the amplification effect of the amplifier. The invention applies vibration to the display screen to be used as a panel loudspeaker, simultaneously controls a plurality of vibrators without using other bar-shaped loudspeakers or loudspeaker systems, and can enjoy multichannel sound content such as 5.1 sound channels and the like through a television; through attaching a plurality of vibrators, form and can play stereophonic solid state immersive OLED audio system through virtual volume, improve audio system's definition and location sense.

Description

Solid immersion type OLED audio system

Technical Field

The invention relates to the field of display equipment, in particular to a solid immersion type OLED audio system.

Background

In the related art, korean patent No. 101704517B1 discloses a display device for generating sound by panel vibration, which includes a display panel for displaying an image, a sound-generating driver contacting a surface of the display panel and vibrating the display panel to generate sound, and a support structure covering and supporting at least a rear surface of the display panel, with an air gap space defined between the support structure and a lower surface of the display panel, the air gap space being provided at an edge of the support structure, and allowing the display panel to vibrate via the sound-generating driver. US10674271B2 discloses a flat panel speaker and display device including a diaphragm having a flat panel shape and a driving unit mounted on a back surface of the diaphragm and vibrating the diaphragm, a fixing member is fixedly provided on an outer periphery of the diaphragm in a circumferential direction, a first support member is provided on a radially inner side of the fixing member and fixed to the back surface of the diaphragm and an upper surface of a bottom plate of the fixing member, and has a hardness value smaller than that of the fixing member and/or a value of internal loss thereof larger than that of the fixing member, and a second support member is provided on a radially outer side of the first support member and fixed to the back surface of the diaphragm and the upper surface of the bottom plate of the fixing member, and has a hardness value smaller than that of the first support member and/or a value of internal loss thereof larger than that of the first support member.

Fig. 5 to 7 are schematic diagrams illustrating a sound field position and a sound field positioning method of a speaker in the prior art, in the above solutions, due to a restriction of an installation position or a problem of characteristics of the speaker itself, a sound radiation direction may not be directed to a front of a viewer, and a problem of radiation output of sound in a local direction may exist.

Disclosure of Invention

The present invention is to solve the above problems, and provides a solid-state immersive OLED audio system capable of simultaneously controlling a plurality of vibrators without using an additional bar speaker or a speaker system, and enjoying multi-channel audio contents such as 5.1 channels through a television itself, which adopts the following technical solutions:

a solid immersion type OLED audio system comprises an OLED display panel for a TV, a vibrator, an amplifier and a controller, wherein the vibrator is arranged behind the OLED display panel and generates vibration for generating sound, and the controller receives a sound signal of the OLED display panel through a sound output terminal and transmits the sound signal to the vibrator through the amplification effect of the amplifier.

On the basis of the scheme, the number of the vibrators is 4-10, and the vibrators are arranged in parallel along the horizontal direction for 1-3 rows.

Preferably, the vibrator is a vibrating voice coil.

On the basis of the scheme, the number of the vibrators is at least 7, the vibrators are distributed in 3 rows from top to bottom, the first row is a left vibrator, a central vibrator and a right vibrator, the second row surrounds the left vibrator and surrounds the right vibrator, and the third row surrounds the rear left vibrator and surrounds the rear right vibrator.

On the basis of the scheme, the controller transmits different sound signals to the three rows of vibrators respectively.

Preferably, an acoustic sensor is disposed in front of the OLED display panel, a functional relationship between an acoustic signal measured by the acoustic sensor and an acoustic signal generated by the vibrator is set as a first transfer function, and the controller includes a second transfer function that is an inverse function of the first transfer function.

The invention has the beneficial effects that: the scheme can be used as a panel speaker by applying vibration to the display screen, and simultaneously control a plurality of vibrators without using an additional bar-shaped speaker or a speaker system, so that multichannel sound content such as 5.1 sound channels can be enjoyed through the television. In addition, the invention solves the problem of sound distortion caused by the fact that the original display screen loudspeaker is attached to the back of the display screen due to the fact that the frame of the display screen is thin, and the solid immersion type OLED audio system capable of playing stereo through virtual volume is formed by attaching the plurality of vibrators, so that the definition and the positioning sense of the audio system are improved.

Drawings

FIG. 1: the invention has a schematic structure;

FIG. 2: embodiment 2 of the invention vibrator installation position schematic diagram;

FIG. 3: the invention is a sound source positioning schematic diagram;

FIG. 4: the system of the invention is a surround sound schematic diagram;

FIG. 5: a sound field schematic diagram of a loudspeaker sounding to two sides in the prior art;

FIG. 6: a sound field diagram of a loudspeaker sounding downwards in the prior art;

FIG. 7: the sound source location in the prior art is schematically shown.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

The scheme adopts the OLED display panel, and utilizes self-luminous Organic Light Emitting Diodes (OLEDs), so that the OLED display panel has the advantages of high response speed, high luminous efficiency, high brightness, large view angle and the like. The OLED display panel uses Self-Light Emitting (Self-Light Emitting) elements, and does not require a backlight used for a liquid crystal display device using non-Light Emitting elements, thereby achieving lightweight and thin production characteristics. The OLED display panel has characteristics of excellent viewing angle and contrast, power consumption, capability of realizing dc low voltage driving, high response speed, good external impact resistance and wide application temperature range, as compared with a liquid crystal display device, and the internal constituent elements are solid.

As shown in fig. 1, 3 and 4, the solid-state immersive OLED audio system includes a TV OLED display panel 10, a vibrator 20, an amplifier 30 and a controller 40, wherein the vibrator 20 is disposed behind the OLED display panel 10 and generates vibration generating sound, and the controller 40 receives a sound signal of the OLED display panel 10 through a sound output terminal and transmits the sound signal to the vibrator 20 through an amplification effect of the amplifier 30. The vibrator 20 generates vibration after receiving the signal from the controller 40, and drives the OLED display panel 10 to vibrate and generate sound, and the direction of the generated sound field can be extended forward to the position of the audience, so as to avoid the sound from being generated from the side surface or the bottom surface. Preferably, in order to optimize the sound production effect and form a multi-channel audio system, the number of the vibrators 20 is 4 to 10, and the vibrators 20 are arranged in parallel along the horizontal direction for 1 to 3 rows, so that the sound production by the vibrators 20 at different positions can achieve the immersive sound effect. Preferably, the vibrator 20 may be a vibration voice coil.

In order to further optimize the audio system and ensure the degree of restoration of the sound effect, a sound sensor is disposed in front of the OLED display panel 10, a functional relationship between a sound signal measured by the sound sensor and a sound signal generated by the vibrator 20 is set as a first transfer function, the controller 40 includes a second transfer function, the second transfer function is an inverse function of the first transfer function, and the sound signal sent by the controller 40 is adjusted through the first transfer function and the second transfer function. Since the vibrator 20 needs to be adhered to the OLED display panel 10 through a substance having a certain hardness as a medium, which affects the first transfer function, the first transfer function or the medium may be adjusted as needed. In the generation of the first transfer function, the vibration application frequency can be mainly concentrated between 100Hz and 1000Hz to increase the reliability of the transfer function.

Example 2

The difference between this embodiment and embodiment 1 is that, as shown in fig. 2, the number of the vibrators 20 is at least 7, and the vibrators are distributed in 3 rows from top to bottom, the first row is a left vibrator, a central vibrator and a right vibrator, the second row surrounds the left vibrator and the right vibrator, the third row surrounds the rear left vibrator and the rear right vibrator, and through the installation and arrangement of the vibrators 20, the controller 40 transmits different sound signals to the vibrators 20 in each row, thereby effectively improving the definition and the sense of localization of the surround audio system. And three different sets of second transfer functions may be employed for three rows of differently positioned vibrators 20, respectively.

The present invention has been described above by way of example, but the present invention is not limited to the above-described specific embodiments, and any modification or variation made based on the present invention is within the scope of the present invention as claimed.

Claims

1. The solid immersion type OLED audio system is characterized by comprising an OLED display panel (10) for the TV, a vibrator (20), an amplifier (30) and a controller (40), wherein the vibrator (20) is arranged behind the OLED display panel (10) and generates vibration generating sound, and the controller (40) receives a sound signal of the OLED display panel (10) through a sound output terminal and transmits the sound signal to the vibrator (20) through the amplification effect of the amplifier (30).

2. A solid immersion OLED audio system as claimed in claim 1, characterized in that the number of vibrators (20) is 4 to 10 and is arranged in parallel in horizontal direction in 1 to 3 rows.

3. A solid immersion OLED audio system as claimed in claim 1, characterized in that said vibrator (20) is a vibrating voice coil.

4. A solid state immersive OLED audio system according to claim 2, wherein the number of vibrators (20) is at least 7 and is distributed in 3 rows from top to bottom, the first row being a left vibrator, a center vibrator and a right vibrator, the second row surrounding the left vibrator and surrounding the right vibrator, and the third row surrounding the rear left vibrator and surrounding the rear right vibrator.

5. A solid state immersive OLED audio system according to claim 4, wherein said controller (40) delivers different sound signals to each of the three rows of vibrators (20).

6. A solid immersion OLED audio system as claimed in claim 1, characterized in that a sound sensor is arranged in front of the OLED display panel (10), the functional relationship between the sound signal measured by the sound sensor and the sound signal generated by the vibrator (20) is set to a first transfer function, and the controller (40) includes a second transfer function, which is the inverse of the first transfer function.