CN114020176A - Touch sounding projection display screen - Google Patents
Touch sounding projection display screen Download PDFInfo
- Publication number
- CN114020176A CN114020176A CN202111357098.2A CN202111357098A CN114020176A CN 114020176 A CN114020176 A CN 114020176A CN 202111357098 A CN202111357098 A CN 202111357098A CN 114020176 A CN114020176 A CN 114020176A
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- Prior art keywords
- touch
- sound
- screen
- display screen
- projection display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/045—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
Abstract
The invention provides a touch sounding projection display screen, which comprises: the device comprises a structural frame, a transparent touch component, an optical display diaphragm, a sound production back plate, an electromagnetic driver, a circuit and a control processing component; the back surface of the optical display diaphragm is compounded with one surface of the sound production back plate, the transparent touch component is compounded on the front surface of the optical display diaphragm, and the at least one electromagnetic driver is connected with the other surface of the sound production back plate; the structure frame is used for fixing the transparent touch component, the optical display membrane and the sounding back plate; and the circuit and the control processing part are connected with the transparent touch part and the electromagnetic driver. The accurate pronunciation of position according to the touch can to according to the area and the sound that the pressure production different frequency and volume size of touch, realize the sound and picture unification, what sound is touched and what effect.
Description
Technical Field
The invention relates to the field of projection display, the field of screen sounding and the field of interactive sounding, in particular to a projection display screen capable of sounding by touch.
Background
Usually, the display device is only used as a picture display medium, and the sound is usually provided by an additional speaker provided with a random device or by an external sound box. The existing built-in loudspeaker of a machine is utilized to realize audio playback, the audio playback is usually limited by an installation space, the loudspeaker is generally small in size, a good audio playback effect cannot be achieved, and along with the fact that the size of a current display device is larger and larger, no matter the built-in loudspeaker or an external sound system is far away from a display picture, the problems that sound and the display picture are separated and asynchronous are obvious exist, and great influence is caused on the audio-visual experience. In recent years, due to the rise of laser display technology, the thin form of a laser display screen provides good conditions for screen sounding, so that the screen sounding technology is developed immediately, namely, the screen display component is vibrated to generate sound, the sound and picture integrated feeling is greatly improved, but the sound sounding position accuracy is not high enough, and the sound is passively sounded according to audio and video, and the sound at the accurate position cannot be generated according to the external interaction requirements.
Disclosure of Invention
The invention aims to provide a touch sounding projection display screen, which aims to solve the technical problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a touch-tone projection display screen, comprising: the device comprises a structural frame, a transparent touch component, an optical display diaphragm, a sound production back plate, an electromagnetic driver, a circuit and a control processing component; the back surface of the optical display diaphragm is compounded with one surface of the sound production back plate, the transparent touch component is compounded on the front surface of the optical display diaphragm, and the at least one electromagnetic driver is connected with the other surface of the sound production back plate; the structure frame is used for fixing the transparent touch component, the optical display membrane and the sounding back plate; and the circuit and the control processing part are connected with the transparent touch part and the electromagnetic driver.
In some embodiments, the transparent touch member is a capacitive touch screen or a resistive touch screen; the method is used for acquiring touch position, touch area and touch pressure information.
In some embodiments, the optical display film is one of a common projection screen, an optical display coating, a black grid type optical film, or a fresnel optical film made of resin.
In some embodiments, the sound backplate is in the form of a flat plate having a multi-layer structure including a honeycomb layer.
In some embodiments, the sound backing plate has a thickness of 20mm or less and a density of 0.5g/cm3The following.
In some embodiments, the electromagnetic driver can convert the received electric signal into mechanical vibration through magnetic action, vibrate a composite body consisting of the transparent touch component, the optical display membrane and the sounding back plate, and vibrate air to generate sound through the composite body.
In some embodiments, the electromagnetic driver has a plurality of electromagnetic drivers forming an array of electromagnetic drivers on the back side of the generation backplane.
In some embodiments, after obtaining the touch position information or the source position information of the sound in the video, the circuit and the control processing component control one or more electromagnetic drivers on the back of the screen corresponding to the position to work, so as to generate the sound at the accurate position.
In some embodiments, after acquiring the touch area information, the circuit and control processing component controls one or more electromagnetic drivers on the back of the screen at the corresponding position to work, and controls the frequency of the emitted sound according to the size of the touch area, wherein the larger the area, the lower the frequency, and the smaller the area, the higher the frequency.
In some embodiments, after the circuit and the control processing component acquire the touch pressure information, the circuit and the control processing component control one or more electromagnetic drivers on the back of the screen at the corresponding position to work, and control the volume of the emitted sound according to the magnitude of the touch pressure, wherein the greater the pressure is, the smaller the pressure is.
Advantageous effects
The invention provides a touch sounding projection display screen which mainly comprises a screen structure frame assembly, a transparent touch component, an optical display diaphragm, a sounding back plate, an electromagnetic driver, a circuit, a control processing component and a back protection cover plate. When a certain area of the projection display screen is touched, the touched area corresponding to the touched position can accurately generate sound, the sound frequency generated according to the difference of the touch area is different, the sound generated according to the difference of the touch pressure is different, and specific application scenes such as a piano screen, a land mouse, a fruit cutter and the like can be correspondingly developed, so that the projection display screen has a wide market prospect.
Drawings
FIG. 1 is a schematic side view of the entire screen of the present invention.
Fig. 2 is a schematic diagram of the working principle of the screen of the present invention.
Fig. 3 is a schematic layout of the electromagnetic driver of the present invention.
Description of the drawings: 1-structural frame, 2-adhesive, 3-transparent touch component, 4-optical display membrane, 5-sounding back plate, 6-back protective cover plate, 7-circuit and control processing component and 8-electromagnetic driver.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.
As shown in fig. 1-3, a touch-tone projection display screen includes: the structure comprises a structure frame 1, a transparent touch component 3, an optical display diaphragm 4, a sound production back plate 5, an electromagnetic driver 8 and a circuit and control processing component 7; the structural frame 1 and the back protective cover 6 of the screen provide structural support and protection for the whole screen and provide mounting support for all components. The back surface of the optical display diaphragm 4 is compounded with one surface of the sound production back plate 5 through the adhesive 2, the transparent touch component 3 is compounded on the front surface of the optical display diaphragm 4, and the at least one electromagnetic driver 8 is connected with the other surface of the sound production back plate 5; the transparent touch part 3 is a capacitive touch screen or a resistive touch screen; the method is used for acquiring touch position, touch area and touch pressure information.
The screen at least comprises one electromagnetic driver 8, preferably comprises a plurality of electromagnetic drivers 8, and an electromagnetic driver 8 array is formed on the back of the screen according to requirements, so that the more electromagnetic drivers 8 are, the more accurate the sound position sensing is theoretically. The structure frame 1 is used for fixing the transparent touch component 3, the optical display membrane 4 and the sound production back plate 5; the circuit and control processing part 7 is connected to the transparent touch part 3 and the electromagnetic driver 8. The circuit and control processing part 7 provides power supply, signal transmission, analysis and processing functions for the transparent touch part 3 and the electromagnetic driver 8.
After acquiring the touch position information or the source position information of sound in the video, the circuit and control processing part 7 controls one or more electromagnetic drivers 8 on the back of the screen at the corresponding position to work to generate sound at the accurate position.
After acquiring the touch area information, the circuit and control processing part 7 controls one or more electromagnetic drivers 8 on the back of the screen at the corresponding touch position to work, and controls the frequency of the emitted sound according to the size of the touch area, wherein the frequency is lower when the area is larger, the frequency is higher when the area is smaller, namely, the sound is more bass when the area is larger, and the sound is more treble when the area is smaller.
After acquiring the touch pressure information, the circuit and control processing part 7 controls one or more electromagnetic drivers 8 touching the back of the screen at the corresponding position to work, and controls the volume of the emitted sound according to the magnitude of the touch pressure, wherein the greater the pressure, the greater the volume, the smaller the pressure, and the smaller the volume.
In some embodiments, the optical display film 4 is an optical display medium suitable for a projector, and may be a common projection screen, an optical display coating, a black grid type optical film, or a fresnel optical film made of resin, preferably a fresnel optical film.
In some embodiments, the sound-emitting back plate 5 is in the form of a flat plate having a multi-layer structure including a honeycomb layer, has a thickness of 20mm or less, and a density of 0.5g/cm3 or less, and has rigidity and flatness required for projection display and light weight and easy vibration required for sound emission.
In some embodiments, the electromagnetic driver 8 can convert the received electrical signal into mechanical vibration through magnetic action, vibrate the composite body composed of the transparent touch component 3, the optical display membrane 4 and the sound-emitting back plate 5, and vibrate air to generate sound through the composite body.
The embodiment further provides a specific implementation method:
as shown in fig. 1, the touch sound projection display screen is composed of a structural frame 1, a transparent touch part 3, an optical display membrane 4, a sound back plate 5, an electromagnetic driver 8, a circuit and control processing part 7, a back protection cover plate 6 and the like.
The optical film adopts an ultra-short-focus Fresnel optical film. The transparent touch part 3 is a capacitive or resistive touch screen. The sound production backplate 5 adopts the glass fiber aluminum honeycomb panel of the glass fiber skin aluminum honeycomb core, and the sound production panel has the light weight of the intensity that the demonstration needs and the sound production needs concurrently, and thickness is 10 mm. The transparent touch component 3 and the optical display membrane 4, and the optical display membrane 4 and the sound production back plate 5 are compounded together by adopting the adhesive 2 to form a touch display compound body. Between the touch display complex and the structure frame 1, and between each part of the structure frame 1, an elastic connection mode or soft material contact is adopted, so that vibration noise is avoided.
The electromagnetic driver 8 is also connected to the other surface of the sound board by the adhesive 2, converts the received electric signal into mechanical vibration by magnetic action, and vibrates the composite of the transparent touch member 3, the optical display diaphragm 4, and the sound backplate 5 to generate sound. As shown in fig. 1, the transparent touch member 3 and the electromagnetic driver 8 are connected to the circuit and control processing member 7 through connection lines. The electromagnetic drivers 8 are arranged as shown in fig. 3, and the accuracy of cost and sounding position can be considered by adopting the array arrangement of 9 electromagnetic drivers 8.
The transparent touch component 3 acquires touch position information, touch area information and touch pressure information for a scheme screen, the acquired information is analyzed and processed by the circuit and control processing component 7, and finally the electromagnetic driver 8 at the corresponding position is controlled to vibrate at different frequencies and amplitudes to generate different sounds. The circuit and control processing part 7 comprises one or more audio power amplifiers, one or more touch control units and one or more signal analysis processing units so as to deal with touch control, signal analysis processing and sound generation.
The invention further discloses a method for generating sound based on the existing screen, which is characterized in that the electromagnetic driver 8 array is reasonably arranged, the sound can be accurately generated according to the touch position, the sounds with different frequencies and volumes can be generated according to the touch area and the touch pressure, the effect of combining sound and picture and the sound can be realized, the sound generation position is more accurate, the effect of combining sound and picture is greatly improved, and in addition, the touch function is combined, the touch position and the sound generation position are combined, and the unexpected effect and application prospect are generated.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A touch-tone projection display screen, comprising: the device comprises a structural frame, a transparent touch component, an optical display diaphragm, a sound production back plate, an electromagnetic driver, a circuit and a control processing component; the back surface of the optical display diaphragm is compounded with one surface of the sound production back plate, the transparent touch component is compounded on the front surface of the optical display diaphragm, and the at least one electromagnetic driver is connected with the other surface of the sound production back plate; the structure frame is used for fixing the transparent touch component, the optical display membrane and the sounding back plate; and the circuit and the control processing part are connected with the transparent touch part and the electromagnetic driver.
2. The touch-tone projection display screen of claim 1, wherein the transparent touch member is a capacitive touch screen or a resistive touch screen; the method is used for acquiring touch position, touch area and touch pressure information.
3. The touch-tone projection display screen of claim 1, wherein the optical display film is one of a common projection screen, an optical display coating, a black-grid optical film, or a fresnel optical film made of resin.
4. A touch-tone projection display screen in accordance with any one of claims 1 to 3, wherein the sound backplate is in the form of a flat plate having a multi-layer structure comprising a honeycomb layer.
5. The touch-tone projection display screen of claim 4, wherein the sound backplane has a thickness of 20mm or less and a density of 0.5g/cm3The following.
6. A touch-tone projection display screen in accordance with claim 5, wherein the electromagnetic driver is capable of converting the received electrical signal into mechanical vibration by magnetic action, vibrating a composite of the transparent touch member, the optical display membrane and the tone back plate, and generating sound by vibrating air from the composite.
7. A touch-tone projection display screen in accordance with claim 6, wherein the electromagnetic drivers are in plurality, the plurality of electromagnetic drivers forming an array of electromagnetic drivers on the back of the touch-tone plate.
8. The touch-sound projection display screen of claim 1, wherein the circuit and control processing component, after acquiring the touch location information or the source location information of the sound in the video, controls one or more electromagnetic drivers on the back of the screen corresponding to the location to operate, so as to generate the sound at the accurate location.
9. The touch-sound projection display screen of claim 1, wherein the circuit and control processing component, after acquiring the touch area information, controls one or more electromagnetic drivers on the back of the screen at the corresponding touch position to operate, and controls the frequency of the sound generated according to the size of the touch area, wherein the larger the area, the lower the frequency, and the smaller the area, the higher the frequency.
10. The touch-sound projection display screen of claim 1, wherein the circuit and control processing component, after acquiring the touch pressure information, controls one or more electromagnetic drivers on the back of the screen at the corresponding position to operate, and controls the volume of the generated sound according to the magnitude of the touch pressure, and the volume is larger when the pressure is larger, and is smaller when the pressure is smaller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111357098.2A CN114020176A (en) | 2021-11-16 | 2021-11-16 | Touch sounding projection display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111357098.2A CN114020176A (en) | 2021-11-16 | 2021-11-16 | Touch sounding projection display screen |
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| CN114020176A true CN114020176A (en) | 2022-02-08 |
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| CN202111357098.2A Pending CN114020176A (en) | 2021-11-16 | 2021-11-16 | Touch sounding projection display screen |
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| CN214070060U (en) * | 2020-11-24 | 2021-08-27 | 四川长虹电器股份有限公司 | Spontaneous sound laser projection display screen |
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