WO2003061338A1

WO2003061338A1 - Light exhibiting speaker

Info

Publication number: WO2003061338A1
Application number: PCT/CN2002/000760
Authority: WO
Inventors: Lei Gao; Fei Lu; Qingsi Liu
Original assignee: Lei Gao; Fei Lu; Qingsi Liu
Priority date: 2001-12-21
Filing date: 2002-10-28
Publication date: 2003-07-24
Also published as: WO2003061338A8; CN1219413C; CN1427650A; AU2002338169A1

Abstract

The present invention discloses a light exhibiting speaker with a transduction system, which comprises: a luminescence system with luminescence elements; and electroacoustic transduction system including a exciter for translating electrical signal into mechanical oscillations and translating mechanical oscillation into sound energy, wherein, said vibrating membrane in the radiator is comprised by luminescence elements, so that said vibrating membrane becomes luminescence vibrating membrane. Light exhibiting speaker according to the present invention provides acousto-optic function, and has compact structure, and it also can be used in a variety of occasions where need to combine acoustic with optic.

Description

TECHNICAL FIELD

The present invention relates to a speaker, and particularly to a light display speaker. Background technique

In the field of audio, while pursuing beautiful sound quality, people are also trying to organically combine sound and light in order to add a warm and perfect sound and light effect to consumers' home life and work environment. There are many types of traditional speakers, such as electric speakers, piezoelectric speakers, electrostatic speakers, flexural vibration flat panel speakers, electromagnetic speakers, etc., but there has not been any light display speaker that organically combines sound and light.

In order to achieve the acousto-optic effect, the sound usually uses a simple combination of the speaker and the lighting, and the light emitting diode is arranged around the speaker. The structure is complicated, the maintenance is inconvenient, and the acousto-optic effect is not ideal. In addition, some lighting and audio products use light sources with high heat, which can be damaged if they are inadvertently used, and the dazzling light stimulus can cause adverse effects on people. Summary of the Invention

An object of the present invention is to provide a light display speaker, which integrates a light-emitting system and an electro-acoustic transduction system into one body. While satisfying the sound emission function of a traditional speaker, it can also emit light that changes with the rhythm of music to achieve a sound-light effect. Synergy.

In order to achieve the object of the present invention, a light display speaker is provided, which includes a transduction system. The transduction system includes: a light-emitting system including a light-emitting component; and an electro-acoustic transduction system. The electro-acoustic transduction system includes An exciter that converts electrical signals into mechanical vibrations and a radiator that converts mechanical vibrations into acoustic energy, wherein the light-emitting member constitutes a diaphragm in the radiator, and the diaphragm becomes a light-emitting diaphragm.

In an embodiment of the present invention, the light emitting diaphragm is an acousto-optic member containing a long afterglow luminous powder. In another embodiment of the present invention, the light emitting diaphragm is an electroluminescence diaphragm, which has a layer structure and is composed of at least a transparent electrode layer, an electrode layer, and a light emitting layer sandwiched between two electrodes.

In still another embodiment of the present invention, the light emitting diaphragm is composed of a conventional diaphragm and an electroluminescent film provided on a surface of the conventional diaphragm.

In the embodiment of the present invention, the exciter may be an electromagnetic exciter or a piezoelectric exciter. One of a magnetic device, a magnetostrictive exciter, and a sheet-shaped exciter.

Regardless of the use of electroluminescent diaphragms or light emitting components made of long afterglow luminescent materials, the power consumption is low, the light emitted is soft and clear, no harmful rays, the light source does not generate heat, and it will not affect the speaker itself, the surrounding environment and people. Cause any adverse effects.

The light display speaker of the present invention has a compact structure and can be widely used in various fields such as stage audio, car audio, home audio, public broadcasting system, Hi-Fi audio, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a structural diagram of a flat panel light display speaker;

FIG. 2 is a structural diagram of a cone-shaped light display speaker;

FIG. 3 is a structural diagram of a bending vibration flat panel light display speaker; FIG.

4a to 4d are schematic structural diagrams of four embodiments of the electroluminescence diaphragm;

5a to 5c are schematic diagrams of light emitting patterns, characters, symbols and the like of the electroluminescence diaphragms thereof; FIGS. 6a and 6b are schematic diagrams of structures of embodiments of matrix and dot matrix electroluminescence diaphragms;

6c is a schematic diagram of a thin film transistor (TFT) array as a basic layer structure of an electroluminescent diaphragm electrode layer;

7a is a schematic diagram of a structure of a dot matrix electroluminescence diaphragm with a touch screen;

7b is a front view of a dot matrix electroluminescent diaphragm with a touch screen;

7c is a schematic diagram of a three-primary-color module of a light-emitting layer of the light-emitting diaphragm of FIG. 7a;

8a to 8c are schematic diagrams of several kinds of light-emitting electrical components of a light display speaker;

FIG. 9 is a control circuit diagram of a lattice electroluminescence diaphragm;

Fig. 10 is a schematic diagram of an electromagnetic exciter used in the light display speaker of the present invention; Fig. 11 is a schematic diagram of a piezoelectric exciter used in the light display speaker of the present invention; Schematic diagram of a magnetostrictive exciter used;

13 is a schematic diagram of a thin-film exciter used in the light display speaker of the present invention; and

FIG. 14 is a schematic diagram of another sheet type shaker used in the light display speaker of the present invention. detailed description

The embodiments are described below in detail with reference to the drawings to further explain the present invention. 1 to 3 show schematic structural diagrams of three types of light display speakers. The speakers in the figure each include an exciter part that converts electrical signals into mechanical vibrations and a radiator part that converts mechanical vibrations into acoustic energy. In addition, the light-emitting diaphragm and its accessories constituting the radiator also constitute a light-emitting system.

Figure 1 shows a piston-type rigid vibration flat-panel light display speaker, the basic structure of which is the same as traditional products. It includes: a magnetic steel (excitation) part, a basin frame 3, and a vibration part provided on the basin frame 3. The magnetic steel part is composed of a T-shaped armature 5, a magnet 6, and a splint 7. The components of the vibration part include a rubber diaphragm 1, a diaphragm 2, a cone-shaped horn 4, an acoustic diaphragm 9, and an elastic wave 8. The diaphragm 2 uses a light-emitting vibration. The film and the rubber ring 1 may be a light-emitting rubber ring. The light-emitting diaphragm radiates sound energy through vibration.

The cone-shaped light display speaker shown in FIG. 2 includes: a magnetic steel part, a basin frame 13 and a diaphragm part provided on the basin frame 13; the magnetic steel part is composed of a T-shaped armature 15, a magnet 16 and a cleat 17; The rubber ring 11, the sound basin 12, the dust cover 14, the voice coil 19 and the elastic wave 18 are composed. Among them, the sound basin (or diaphragm) 12, the rubber ring 11 and the dust cover 14 can adopt acousto-optic components, that is, a light emitting sound basin (or diaphragm), a light emitting rubber ring, and a light emitting dust cover. The light emitting cone (or diaphragm) radiates sound energy through piston-type rigid vibration.

As shown in Fig. 3, the curved flat panel light display speaker is composed of an exciter 32 and a light emitting diaphragm 32, which is a light emitting composite honeycomb structure diaphragm. The light-emitting composite honeycomb diaphragm 32 can be realized by providing a light-emitting layer on the surface of a conventional composite honeycomb diaphragm, or it can have an electroluminescence layer structure. The light emitting composite honeycomb diaphragm radiates acoustic energy through bending vibration.

Hereinafter, embodiments of the light emitting diaphragm of the light display speaker in the present invention will be described in detail. The light emitting radiator also functions as a light emitting system.

The light-emitting diaphragms of the light display speakers described above are all acousto-optic members containing long afterglow luminous powder. Long afterglow noctilucent material is a kind of natural light, light or ultraviolet light, which absorbs and stores the obtained energy, and then continuously release it in the form of visible light. It directly manifests as long-term light emission in the dark, and the afterglow time can be longer than 3-15 hours. This type of product can be used repeatedly, with a lifespan of up to 10 years, and the material is harmless to the human body. Has good physical and chemical stability; material particles can be controlled between 400 mesh-80 mesh, suitable for different device manufacturing processes; material saturation excitation time is 1-20 minutes, multiple colors, colorful, long afterglow luminescent materials can be used for multiple A transparent or translucent medium. Such as plastic, glaze, ink, glass, chemical fiber, resin, etc. Therefore, the acousto-optic component composed of a long afterglow material and other materials is easy to implement. It can be directly mixed with other materials to make a long afterglow light-emitting component, such as the aforementioned light-emitting diaphragm, light-emitting rubber ring, and Photoacoustic basin (or diaphragm), light-emitting rubber ring, light-emitting dust cover, and light-emitting composite honeycomb diaphragm.

The light-emitting diaphragm of the above-mentioned light display speaker may be implemented by providing a light-emitting layer on the front surface of the vibrating portion. According to the design requirements, the light-emitting layer may be disposed on the surface of the diaphragm, or the surface of the rubber ring, or the surface of the dust cover, or the surface of the diaphragm and the rubber capsule, or the surface of the diaphragm and the surface of the dust cover.

The light-emitting layer on the member may be a long-glow luminous material light-emitting coating.

The light emitting layer of the above member may also be an electroluminescence film, and the electroluminescence film is driven to emit light by a driving power source. Electroluminescence (or electroluminescence) (EL), whose English name is Electroluminescence, is characterized by load capacitance. EL electroluminescence products have the characteristics of low power consumption, no harmful rays, flexibility, soft light emission, fast start, no inertia, large viewing angle, good fog transmission performance, and clear light emission.

The above-mentioned light-emitting film is preferably an electroluminescence diaphragm. 4a-d are schematic structural diagrams of four embodiments of the electroluminescence diaphragm.

The basic structure of the electroluminescence diaphragm is shown in Fig. 4a. It adopts a layer structure and is composed of a transparent electrode 26, an electrode 22, and a light emitting layer 24 between the two electrodes. The electrode layer of the electroluminescence diaphragm may be transparent. When the driving power is applied to the two electrodes and the corresponding conditions are met, the electric field forces generated between the two electrodes respectively excite the holes and electrons injected by the two electrodes into a singlet exciton, and the exciton emits light after attenuation; Or when the electrons are directly excited to generate a transition and then return to the original state, the extra energy is released in the form of light. This light is generated in the light-emitting layer, and the light is transmitted to the outside through the transparent electrode and the transparent substrate so that the human eye can see it. See. In order to transmit more light from the light-emitting layer, a reflective surface is formed on one side of the electrode, so that more light is reflected.

In order to meet the requirements of the sound quality of the acousto-optic component for its physical properties and the requirements of the light-emitting layer for changes in light, its structure can be appropriately changed based on the basic structure, such as: The color of the light emitted by the acousto-optic component is Variable; the brightness of the light emitted by the acousto-optic component can be changed; the light emitted by the acousto-optic component can form graphics, characters, symbols, etc.

In order to meet the design requirements, in addition to designing more complex drive circuits on the basic circuit, there must be slight structural changes at the same time. For example, at least one insulating layer or carrier layer 23, 25 is provided on both sides of the light emitting layer 24 shown in Figs. 4b-d. This structure can prolong the luminous life of the acousto-optic member, and the layer structure on the two sides of the light-emitting layer, which can reduce the quenching of electrons or holes, can make the poles farther from the light-emitting body. When the light-emitting body is an inorganic substance, the layer structure on both sides of the light-emitting body is called an insulating layer; when the light-emitting body is an organic substance, the layer structure on both sides of the light-emitting body is called a fluid-carrying layer. At the same time, it is conceivable that the color and brightness of the light emitted by the acousto-optic component are related to the substance and amount of the luminous body. Luminous body here refers to all electroluminescent materials that can emit light of various colors, and the amount of substance is determined as needed. In addition, acousto-optic components may require different colors of light or pattern changes, so the number of light emitting layers can also be increased.

In some cases, a protective layer 27 may also be provided on the outer side of the transparent electrode 26, see FIG. 4c. A filter layer may be provided inside or outside the protective layer of the transparent electrode layer. The protective layer may be composed of a transparent portion and an opaque portion. A touch screen structure may also be fixed outside the protective layer of the transparent electrode layer.

In order to make the light-emitting diaphragm achieve certain physical properties to meet the requirements of sound and light, as shown in FIG. 4D, a base layer structure 21 can be added on the outside of the electrode 22, and a protective layer 27 can be added on the outside of the transparent electrode 26. To protect the acousto-optic member from emitting light. The material used for this base layer can be the material used for the corresponding components of ordinary speakers, such as mixed pulp, PP glue, aluminum, composite honeycomb structure materials, etc. The base layer can be a transparent base layer.

5a to 5c are schematic diagrams of light emitting patterns, characters, symbols, etc. of the electroluminescence diaphragm. In FIG. 5a, in the same plane, the electrode 22 is composed of several parts constituting a pattern, and each part is not conductive with each other. The different parts of the electrode form a figure, a scheme, a symbol, etc. This figure is a "8" shape, and each part is non-conducting, and the transparent electrode layer 26 and the light emitting layer 24 are a complete plane, respectively. When in the working state, under the control of the control circuit, the digital changes of 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 can be displayed.

In FIG. 5b, in the same plane, the light emitting layer 24 is composed of several parts constituting a pattern. The different parts of the light-emitting layer 26 constitute graphics, characters, symbols, etc. This figure is a "2" character, and the 2 character is a light-emitting layer. The electrode 22 and the transparent electrode 26 in this figure are respectively a complete plane, so that when the display is in the working state, the light emitted by the display forms a "2" character.

In FIG. 5c, in the same plane, the transparent electrode 26 is composed of several parts constituting a pattern, and each part is not conductive with each other. The different parts of the transparent electrode 26 constitute figures, characters, symbols, etc. This figure is a "8" character, and each part is not conductive with each other. The electrode layer and the light-emitting layer are respectively a complete plane. In this way, when the display is in the working state, under the control of the circuit, the acousto-optic component will show 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 number changes.

Figure 6a is a schematic diagram of a matrix structure electroluminescence diaphragm, which uses a layer structure including an electrode layer 22, a transparent electrode layer 26, and a light-emitting layer 24; the electrode layer 22 and the transparent electrode layer 26 are composed of a number of parallel It consists of thin conductive strips. Each thin conductive strip is provided with wires 29 and 30. The two electrodes are perpendicular to each other according to the thin conductive strips and are superimposed on both sides of the light-emitting layer 24, respectively. The whole has a matrix structure.

FIG. 6b is a schematic diagram of a dot matrix electroluminescence diaphragm. The electrode layer 22 is composed of several parts that are not conductive with each other. It is divided into components. The transparent electrode layer 26 is composed of several parts that are not conductive with each other. The light-emitting layer 24 is composed of several isolated parts. The overall structure is a dot matrix structure, where 21 is a base layer and 27 is a protective layer. Under the control of the control circuit, each dot matrix can emit light independently. In this way, changing patterns, characters, and symbols can be composed, that is, an image is formed, which can be black and white or color. In addition, the two electrodes can also be directly made into graphics, characters, symbols, etc., and produce the effect of pattern change under the control of the circuit.

Figure 6c is a schematic diagram of the basic layer structure of a thin film transistor (TFT) array as the electrode layer of an electroluminescence diaphragm. In this light emitting diaphragm, the electrode layer 22 of the electroluminescent diaphragm is composed of a thin film transistor array. The thin film transistor in this layer is driven by a driving circuit to perform two functions. One is to provide a controlled current to drive electroluminescence, and the other is to continue to provide current after the address period to ensure that each pixel emits light continuously. The electrode layer of the electroluminescence diaphragm is composed of several thin film transistors. The advantage is that only a small current is needed when the light emitting diaphragm emits light, so power consumption can be reduced.

The structure of a dot matrix electroluminescence diaphragm with a touch screen is shown in Figs. 7a and 7b.

Figures 7a and 7b show that the layer structure of a capacitive transparent touch screen function is continuously compounded on the basis of forming a dot matrix structure to complete the light display function, so that the light member can not only output clear sound and images, but also complete the signal. Enter. In FIG. 7a, 21 is a base layer, 22 is a strip electrode, 24 is a light-emitting layer, 26 is a transparent strip electrode, 27 is a protective layer 27, and a transparent electrode sensor 33 is laminated on the outside of the protective layer 27. A transparent protective layer 34 is compounded on the outside of the sensor 33. This transparent protective layer not only plays a role in protecting the screen, but also has good durability and light transmittance. More importantly, as a part of the display diaphragm, it has little effect on the acoustics, and also plays a role in some frequency ranges. Good effect.

FIG. 7b shows that the dot matrix electroluminescence diaphragm adds a layer of frame electrode 35 to the frame. When a voltage is applied to the frame electrode 35, an electric field is formed in the transparent electrode 27. When a finger can touch the conductive body, When displaying the outer surface, current will flow from the frame to the touch point. According to the position of the touch point on the display screen, the controller of the control circuit will recognize it and process the input signal.

In addition, since the touch screen also has a resistive type, an infrared type, a sonic screen type, etc., it can be more easily implemented by adding a layer structure or an auxiliary device to the display, so it will not be described in detail.

FIG. 7c is a schematic diagram of the three primary color modules of the light emitting layer of the light emitting diaphragms of FIGS. 6b and 7a. In the process of practical application, people often need patterns with various color changes. Therefore, the light-emitting layer and the electrode layer are superimposed according to the corresponding shapes. The transparent electrode is a complete plane. The materials in the light-emitting layer can emit different colors of light or R, G, and B three-color pigments as required. Under the control of the circuit diagram, Produce different patterns, different color changes. The combination of this form of electrode, light-emitting layer, and transparent electrode is the most widely used form of the structure of the art image display layer of the light-emitting speaker sound-light display member.

When the light display speaker adopts electroluminescence, the acousto-optic member (electroluminescence diaphragm) 41 as shown in FIG. 8a is connected with the voice coil 42 and the sound source 43 in parallel. When the speaker is in the working state, the audio current from the sound source 43 flows through the voice coil 42 to drive the vibration system to produce sound. Because the electroluminescence is a capacitive load, the voltage of the two poles of the electroluminescence at a certain moment is equal to the voltage of the sound, but the current does not flow through the electroluminescence. In this way, the acousto-optic component emits light when the two poles of the electroluminescence substance reach a certain condition. This light has the effect of flickering and flickering in the change of the audio current frequency.

FIG. 8b shows a case where the electroluminescent diaphragm 41 is directly driven by the driving power source 44 and the voice coil 42 is driven by the sound source signal 43 alone. In this way, whether the speaker is working or not, its acousto-optic components can emit light. When the driving power source outputs a stable voltage at a set frequency, the acousto-optic component will emit light with stable brightness under the corresponding conditions; if the voltage and frequency of the driving power source are changed, the acousto-optic component will emit under the corresponding conditions Flickering light effect, flickering light.

Figure 8c is a circuit diagram of the acousto-optic component that can produce the effect of flickering when it has a certain brightness. Some of the acousto-optic components 41 are directly driven to emit light by the driving power source 44, and some of the light-emitting components 41 'are connected in parallel with the voice coil 42 and then connected to the sound source 43, so that the light display speaker can emit light in the working or non-working state, and in the working state Variations in light intensity, etc.

In order to obtain the desired light display effect, the two electrodes of the acousto-optic member, the light-emitting layer, and the protective layer can be processed into a dot matrix structure capable of generating graphics and characters as required. An image processing circuit can control the dots on the acousto-optic member. The array emits light, producing orderly changes in color, brightness, graphics, text, symbols, etc.

FIG. 9 is a control circuit diagram of a dot matrix (or matrix) electroluminescence diaphragm. The control circuit of the dot matrix electroluminescence diaphragm includes: power supply 1 ', microprocessor 2', driving circuit 3 ', audio signal input circuit 4', and channel selection circuit 5 '. The audio signal input circuit 4' is connected to the micro processing The input terminal of the driver 2 ', the channel selection circuit 5' is connected between the output terminal of the driving circuit 3 'and the corresponding electrode lead of the dot matrix electroluminescent diaphragm 6', the other output terminal of the driving circuit 3 'and the audio output signal The corresponding electrode leads of the dot matrix electroluminescent diaphragm 6 'are respectively connected, and the two control terminals of the driving circuit 3' are connected to the microprocessor 2 '. The audio signal strength displays the image (or pattern) in the setting mode. The power supply adopts AC and DC power supply, which can be selected through the transfer switch S1. The alternating current part is composed of a transformer, a bridge reactor, a voltage stabilizing integrated block and a filter capacitor. DC power is supplied by batteries and the circuit operates at 5 volts.

The microprocessor CPU is the core of the entire control. It samples its amplitude and frequency from the audio signal input circuit 4 'and processes it to output the image to the driving part and channel selection part according to a certain relationship, so that it produces color and shape changes. The pattern, the pattern changing mode, speed, color, etc., can be controlled by it, and it can produce a variety of display modes such as chasing, cyclic or changing with the strength of the audio signal.

The audio signal input circuit receives the audio output signal of the audio equipment, and after conversion, enters the corresponding input terminal of the CPU, and after the CPU processes, outputs the corresponding signal to control the acousto-optic component. The circuit consists of a transistor and a number of resistors. Its function is to decompose the frequency and amplitude of the music signal for the microprocessor to sample.

The driving circuit receives the control signal from the CPU and generates an alternating signal, and drives the acousto-optic component to emit light with low power consumption. The driving circuit 3 'is composed of an inverter and two triacs (Q4, Q6). The triac Q4 is connected to the output of the inverter, and the triac Q6 is used to control the output of audio signals. The inverter can use a universal inverter circuit. The icon inverter is composed of IMP560 circuit and its external potentiometer (R16, R17), inductor L2, diode Dl, resistor (R14), capacitor (C6, C7, C11). . The signal frequency can be changed by adjusting potentiometer R17, and the amplitude of the signal can be changed by adjusting potentiometer 16. IMP560 AC signal (pin 7) is output through resistor R20 and triac Q4.

The channel selection circuit 5 'is composed of a plurality of triacs. Icon Triac (Ql, Q2,

Q3, Q5, Q7-10) are respectively connected between the above-mentioned IMP560 circuit output terminal (pin 6) and the corresponding electrode lead of the dot matrix electroluminescent film 6 '. The channel selection circuit receives a control signal from the microprocessor, selects a pattern control channel, and generates a changing pattern.

Hereinafter, an embodiment of an exciter for converting an electric signal into a mechanical vibration in the present invention will be described in detail.

10 to 14 show embodiments of an exciter used in the light display speaker in the present invention. In the embodiment shown in FIG. 10, the light emitting diaphragm of the light display speaker is a cone cone, which is a typical structure similar to an ordinary speaker. The exciter of this embodiment is a conventional electromagnetic exciter, which includes a T-shaped armature 101, a magnet 102, a splint 103, and a voice coil 104.

However, such a conventional exciter has a large size and a heavy weight, which limits the application range of the light display speaker using it as the exciter. In order to combine the devices that transmit audiovisual information into one The organic whole, especially the diaphragm of the light display speaker is used as a display screen with the function of displaying images, and its exciter is required to be light and thin, so that the whole machine can be conveniently installed and carried. Hereinafter, a schematic diagram of a piezoelectric exciter is shown in conjunction with FIG. 11. The piezoelectric exciter is composed of a piezoelectric ceramic 111 and a metal plate 112. The metal plate 112 is fixed on one side of the piezoelectric ceramic 111. The audio signal provided to the piezoelectric ceramic 111 causes the piezoelectric ceramic 111 to be deformed by extension or contraction during operation, thereby causing the metal plate 112 to undergo bending changes. Mechanical vibration.

FIG. 12 shows a magnetostrictive exciter, which is composed of a magnetostrictive material 121, a coil 122, a prestressing member 123, and a telescopic vibration transmission assembly 124. When line coil 122 is provided with an audio signal, an alternating magnetic field is generated around line coil 122. The magnetostrictive material 121 undergoes a rapid vibration that is elongated or shortened under the action of an alternating magnetic field, and this vibration is transmitted to the radiator through the telescopic vibration transmission assembly 124.

An example of a thin-film exciter is shown in FIG. 13. In this sheet-type exciter, a buffer (loose) layer 133 and 135 are respectively coated on the upper and lower sides of the vibrating film 134 with metal wiring; and the outer sides of the buffer (loose) layers 133 and 135 are respectively coated with Layer rubber magnets 132 and 136; on the upper side of the rubber magnet 132 is a light emitting diaphragm 131, and on the lower side of the rubber magnet 136 is a non-light emitting diaphragm 137. Among them, the vibrating film 134, the buffer layers 133 and 135, and the rubber magnets 132 and 136 constitute an exciter. When the light display speaker is operating, the vibration film 134 applied with audio signals generates relative vibration under the action of the rubber magnets 132 and 136, and this vibration is transmitted to the buffer (loose) layers 133 and 135 and the rubber magnets 132 and 136 to The outermost diaphragms 131 and 137 generate sound.

Fig. 14 shows another example of the thin-film exciter. In this sheet-type exciter, the light-emitting diaphragm 141 is a diaphragm having a basic layer structure containing polyurethane rubber; and on the underside of the light-emitting diaphragm 141 having a urethane rubber is a layer with a multilayer coil Polymer vibration film 142; Below the vibration film 142 is a frame 143 with a buffer structure and a neodymium iron boron magnet. When the light display speaker is in the working state, the audio signal passes through the multilayer wire of the diaphragm 142, and the coil drives the diaphragm 142 to generate vibration under the effect of the magnetic field force. The vibration of the diaphragm 142 is transmitted to the light-emitting diaphragm 141 to generate a sound. The vibration film 142 and the frame 143 constitute an exciter. The exciter of the invention is not limited to this, and other exciters capable of converting electrical signals into mechanical vibrations, and having light and thin characteristics, which are convenient for the whole machine to be conveniently installed and carried, can also be used.

The light display speaker of the present invention organically combines the speaker and the display, and its structure Compact, can be widely used as sound and light components of audio, car audio, home audio, Hi-Fi audio, public address system, computer, monitor, telephone, mobile phone and anti-theft alarm equipment.

In summary, although the present invention has been disclosed as above through several preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and changes without departing from the spirit and scope of the present invention. Retouching, therefore, the protection scope of the present invention shall be defined by the appended claims.

Claims

Claim book

1. A light display speaker comprising a transduction system, characterized in that: the transduction system includes: a light-emitting system, the light-emitting system including a light-emitting member; and

An electro-acoustic transduction system, the electro-acoustic transduction system includes an exciter that converts electrical signals into mechanical vibrations and a radiator that converts mechanical vibrations into acoustic energy,

The light emitting member constitutes a diaphragm in the radiator, and the diaphragm is a light emitting diaphragm.

2. The light display speaker according to claim 1, wherein the light emitting diaphragm is an acousto-optic member containing a long afterglow luminous powder.

3. The light display speaker according to claim 1, wherein: the light-emitting system is an electro-optic conversion system, and a layer structure constituting a basic light-emitting condition on the light-emitting diaphragm includes at least one electrode layer, at least A transparent electrode layer, at least one light emitting layer, and the like.

4. The light display speaker according to claim 3, wherein: the light-emitting diaphragm is an electroluminescence diaphragm, which has a layer structure comprising a transparent electrode layer, an electrode layer, and an electrode sandwiched between two electrode layers. Composition of luminescent layer.

5. The light display speaker according to claim 4, wherein at least one insulating layer is provided on each side of the light emitting layer of the electroluminescence diaphragm.

6. The light display speaker according to claim 4, wherein at least one carrier layer is provided on each side of the light emitting layer of the electroluminescence diaphragm.

The light display speaker according to claim 4, wherein a protective layer is provided on an outer side surface of the transparent electrode layer of the electroluminescence diaphragm.

The light display speaker according to claim 7, wherein a filter layer is provided inside or outside the protective layer of the transparent electrode layer.

9. The light display speaker according to claim 7, wherein a touch screen structure is fixed to the outside of the protective layer of the transparent electrode layer.

The light display speaker according to claim 4, wherein the electrode layer of the electroluminescence diaphragm is transparent.

11. The light display speaker according to claim 4, wherein: the electrode layer of the field light-emitting diaphragm is a thin film transistor.

12. The light display speaker according to claim 4, wherein: said electroluminescence A base layer or a protective layer is provided on the outer side of the electrode layer of the diaphragm.

13. The light display speaker according to claim 4, wherein in the same plane, the electrode layer is composed of several parts constituting a pattern, and each part is not conductive with each other.

14. The light display speaker according to claim 4, characterized in that: in the same plane, the light emitting layer is composed of several parts constituting a pattern.

15. The light display speaker according to claim 4, characterized in that: in the same plane, the transparent electrode layer is composed of several parts constituting a pattern, and each part is not conductive with each other.

16. The light display speaker according to claim 4, wherein: the transparent electrode layer and the electrode layer of the electroluminescence diaphragm are connected in parallel with a voice coil and connected to a sound source.

17. The light display speaker according to claim 4, wherein the transparent electrode layer and the electrode layer of the electroluminescence diaphragm are directly connected to a driving power source.

18. The light display speaker according to claim 4, characterized in that: the electrode layer of the electroluminescence diaphragm is composed of several parts that are non-conductive, and the transparent electrode layer is composed of several parts that are non-conductive, The light-emitting layer is composed of a plurality of mutually isolated parts in a dot matrix structure. A base layer is provided outside the electrode layer, and a protective layer is provided outside the transparent electrode layer.

19. The light display speaker according to claim 18, wherein a transparent electrode sensor is laminated on the outside of the protective layer, and a transparent protective layer is compounded on the outside of the transparent electrode sensor.

20. The light display speaker according to claim 18, wherein each part of the light emitting layer of the dot matrix structure is made of a material capable of emitting different colors.

21. The light display loudspeaker according to claim 20, wherein each part of the light emitting layer of the dot matrix structure is made of light emitting materials of three primary colors of red, green and blue.

22. The light display speaker according to claim 4, characterized in that: the electrode layer and the transparent electrode layer of the electroluminescence diaphragm are each composed of a plurality of parallel thin conductive strips which are not conductive with each other, and each thin conductive The wires are provided with wires, and the two electrode layers are superimposed on both sides of the light emitting layer in a manner that the thin conductive bars are perpendicular to each other, and the whole has a matrix structure.

23. The light display speaker according to claim 18 or 22, wherein the control circuit of the electroluminescence diaphragm comprises a microprocessor, a drive circuit, an audio signal input circuit, and a channel selection circuit, and an audio signal input circuit Connected to the input end of the microprocessor, the channel selection circuit is connected between the output end of the drive circuit and the corresponding electrode lead of the electroluminescent diaphragm, and the other output end of the drive circuit and the audio output signal are connected to the field effect, respectively The corresponding electrode leads of the light-emitting diaphragm, the two control terminations of the driving circuit are connected to the microprocessor, and under the control of the microprocessor, the electroluminescent diaphragm The image of the setting mode is displayed according to the strength of the AC signal and the audio signal of the drive circuit.

24. The light display speaker according to claim 23, wherein the channel selection circuit comprises a plurality of bidirectional thyristors.

The light display speaker according to claim 23, wherein: the driving circuit is composed of an inverter and two bidirectional thyristors, one connected to an output terminal of the inverter, and the other bidirectionally controllable Silicon is used to control the output of audio signals.

26. The light display speaker according to claim 3, wherein the light-emitting diaphragm is composed of a conventional diaphragm and an electroluminescent film provided on the surface of the conventional diaphragm, and the electro-luminescent film is driven by a driving power source or an audio signal Glow.

27. The light display speaker according to claim 1, wherein the exciter is an electromagnetic exciter composed of a T-shaped armature, a magnet, a cleat, and a voice coil.

The light display speaker according to claim 1, wherein the exciter is a piezoelectric exciter composed of a piezoelectric ceramic and a metal plate.

29. The light display speaker according to claim 1, wherein the exciter is a magnetostrictive exciter composed of a magnetostrictive material, a wire reed, a prestressed member, and a vibration transmission component.

The light display speaker according to claim 1, wherein the exciter is a sheet-shaped exciter composed of a vibrating plate with metal wiring, a loose (buffering) layer, and a rubber magnet.

The light display speaker according to claim 30, wherein the vibrator is covered with a loose (buffer) layer on the upper and lower sides of the vibration plate, and rubber magnets are respectively coated on the outside of the loose (buffer) layer. .

32. The light display speaker according to claim 1, wherein: the exciter is a thin sheet composed of a polymer diaphragm arranged in a multilayer coil and a frame of a neodymium iron boron magnet with a buffer structure. Exciter.

The light display loudspeaker according to claim 32, wherein the vibration exciter is covered with a frame with a buffer layer on the side of the polymer diaphragm and fixed with a plurality of NdFeB magnets. .

The light display speaker according to any one of claims 1 to 33, wherein the light display speaker can be used as a sound and light of a sound system, a car audio, a Hi-Fi sound, or a broadcast television system. Parts used.

35. The light display speaker according to any one of claims 1 to 33, wherein: The light display speaker can be used as an acousto-optic component of a computer, a television, or a display.

36. The light display speaker according to any one of claims 1 to 33, wherein the light display speaker can be used as a sound or light component of a telephone or a mobile phone.

The light display speaker according to any one of claims 1 to 33, wherein the light display speaker can be used as an acousto-optic component of an anti-theft alarm device, an advertisement, a publicity board, or a small gift.