CN110543077A

CN110543077A - Projection curtain and projection arrangement

Info

Publication number: CN110543077A
Application number: CN201910773786.3A
Authority: CN
Inventors: 李万银
Original assignee: Shenzhen Hai Yi Zhi Xin Technology Co Ltd
Current assignee: Shenzhen Hai Yi Zhi Xin Technology Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2019-12-06

Abstract

The invention provides a projection curtain and a projection device, wherein the projection curtain comprises a curtain substrate, the curtain substrate is woven by textile threads and has patterns with at least two colors; the color-changing coating is coated on the curtain substrate, and when a light column irradiates the color-changing coating, the color of the surface of the curtain substrate irradiated by the light column is presented as a single color; the sound box is arranged on the curtain substrate and used for playing sound. The projection curtain of the invention is a picture when not projecting, which can beautify the environment and play a good role in decorating the scene where the projection curtain is placed, and the color-changing coating changes the color of the curtain substrate into a single color (such as white, dark gray or other colors suitable for projection) when the light column irradiates the projection curtain, thereby being used for projecting and displaying images.

Description

projection curtain and projection arrangement

Technical Field

The invention relates to the technical field of image display, in particular to a projection curtain and a projection device.

Background

With the rapid development of projection technology, projection is more and more popular, and a plurality of scenes using the projection are available in daily life and work. A projection device is a display device for generating large-sized pictures. The projection device has an imaging principle that an illumination beam generated by a light source is converted into an image beam through a light valve, the image beam is converted into a projection beam through a projection lens, and the projection beam is projected onto a projection screen.

a projection screen is one of the most commonly used products in projector peripheral devices, and in the case of watching a film in a home theater or presenting a document in a meeting and a large-scale event, a projector is often used to project an image onto a projection screen, so that the image to be presented is completely and clearly presented on a white projection screen. However, the traditional projection curtain not only has single function, but also lacks aesthetic property when being placed in a playing scene such as a living room, and the layout in a house is ugly.

Therefore, the present invention provides a new projection curtain and a new projection apparatus to solve the above technical problems.

disclosure of Invention

In view of the deficiencies of the prior art, one aspect of the present invention provides a projection curtain comprising:

A curtain substrate woven from textile threads and having a pattern of at least two colors;

The color-changing coating is coated on the curtain substrate, and when a light column irradiates the color-changing coating, the color of the surface of the curtain substrate irradiated by the light column is presented as a single color;

the sound box is arranged on the curtain substrate and used for playing sound.

Illustratively, the color shifting coating includes an organic polymer containing grains of silver halide and copper oxide.

Illustratively, the organic polymer comprises polyvinyl chloride.

Illustratively, the sound box is disposed on a side of the curtain substrate opposite the color changing coating.

Illustratively, the loudspeaker box comprises: sound source access equipment, a signal amplifier and a loudspeaker.

Illustratively, the speaker includes a sound board, the speaker sounding by exciting bending waves in the sound board.

Exemplarily, the projection curtain further comprises a bluetooth module, which is used for realizing bluetooth connection with the projector.

Illustratively, the projection curtain further comprises:

the lamps are arranged around the projection curtain;

And the sound sensor is used for converting the acquired sound into an electric signal so as to control the flickering of the lamp.

Illustratively, the conducting array is arranged around the projection curtain and is controlled by the electric signal to be conducted and cut off, so as to control the flickering of the lamp, wherein the conducting array comprises a triode array.

Yet another aspect of the present invention provides a projection apparatus, the projection system comprising:

A projector for generating and projecting an image;

The projection curtain is described above.

The projection curtain comprises a curtain substrate, wherein the curtain substrate is woven by textile threads and has patterns with at least two colors, so that at least the surface of the curtain substrate for projection is a picture; the curtain substrate is characterized by further comprising a color-changing coating coated on the curtain substrate, and when the color-changing coating is irradiated by the light column, the color of the surface, irradiated by the light column, of the curtain substrate is made to be a single color. Therefore, the projection curtain is a picture with exquisite patterns when not projected, can beautify the environment and play a good role in decorating the scene where the projection curtain is placed, and the color-changing coating changes the color of the curtain substrate into a single color (such as white, dark gray or other colors suitable for projection) when the light column irradiates the projection curtain, so that the projection curtain can be used for projecting and displaying images and the projection function of the projection curtain can still be ensured to be realized.

In addition, the projection curtain also comprises a sound box arranged on the curtain substrate and used for playing sound, so that the projection curtain is presented as a mural sound box projection curtain, the mural sound box projection curtain is hung on a wall and feels a picture with exquisite patterns, and the tone quality effect is clear and natural.

Drawings

The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

in the drawings:

FIG. 1 illustrates a schematic partial cross-sectional view of a projection curtain in one embodiment of the invention;

FIG. 2 shows a schematic block diagram of a projection curtain in one embodiment of the invention;

FIG. 3 shows a schematic block diagram of a sound box included in a projection curtain in one embodiment of the invention;

Fig. 4 shows a schematic view of a projection device in an embodiment of the invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

It is to be understood that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals refer to like elements throughout.

It will be understood that when an element or layer is referred to as being "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it can be directly on, adjacent to, connected or coupled to the other elements or layers or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to" or "directly coupled to" other elements or layers, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present invention.

Spatial relational terms such as "under," "below," "under," "above," "over," and the like may be used herein for convenience in describing the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "under" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.

the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of the associated listed items.

In order to provide a thorough understanding of the present invention, a detailed structure will be set forth in the following description in order to explain the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

In order to solve the technical problems of single function and poor aesthetic property of the existing projection curtain, the invention provides a projection curtain, which comprises:

The sound box is arranged on the curtain substrate and used for playing sound.

In addition, the projection curtain also comprises a sound box for playing sound, so that the projection curtain is a mural type sound box projection curtain, the mural type sound box projection curtain is hung on a wall to feel a picture, the tone quality effect is clear and natural, the indoor environment is beautified, users can enjoy beautiful music and the like, and the use experience of the users is improved.

The projection apparatus of the present invention is explained and illustrated with reference to fig. 1, 2 and 3, wherein fig. 1 shows a schematic partial cross-sectional view of a projection curtain in one embodiment of the present invention; FIG. 2 shows a schematic block diagram of a projection curtain in one embodiment of the invention; fig. 3 shows a schematic block diagram of a sound box included in a projection curtain in an embodiment of the invention.

In one example, as shown in fig. 1, the projection curtain 100 of the present invention includes a curtain substrate 101 woven from textile threads, which may be textile threads of any suitable organic polymer material, such as polyvinyl chloride (PVC) or polyester resin (PET), or a combination thereof, to form the curtain substrate 101 having a pattern of at least two colors, thereby rendering the curtain substrate as a picture. Alternatively, the patterns can be other embroidered patterns or color spray patterns.

The curtain substrate may be woven into a picture, for example, by cross-stitch or other suitable weaving, the pattern of which may be freely custom-selected according to the needs of the user. In which the curtain substrate 101 is shown in figure 1 only as a box for simplicity, it is conceivable that the picture could be a plane, or a plane with small holes or a plane with small pits, etc.

Projection screens can be generally classified into reflective type and transmissive type; reflective for front projection and transmissive for rear projection; the forward projection curtain is divided into a plane curtain and an arc curtain; the flat screen may be classified into a glass fiber screen, a glass bead screen, a metal screen, an embossed plastic screen, an elastic screen, etc. (the embossed plastic is classified into white plastic, gray plastic, silver plastic, etc.), and in this embodiment, the type of the projection screen is not particularly limited.

Optionally, a light shielding layer (not shown) is further disposed on the curtain substrate, and the light shielding layer is disposed on a surface of the curtain substrate opposite to the surface for projection and used for shielding light and preventing light loss, and the light shielding layer can be black ink.

in one example, as shown in fig. 1, the projection curtain 100 further includes a color-changing coating 102, which is coated on the curtain substrate 101, for example, on a surface of the curtain substrate for projection, and when a light column is irradiated on the projection curtain 100, the color of the surface of the curtain substrate irradiated by the light column is made to appear as a single color, for example, the color of the surface of the curtain substrate for projection is changed into a single color, optionally, the color of the pattern of the at least two colors is changed into a single color, and the color of the curtain substrate is made to appear as a single color, for example, dark gray, white, etc., and the color can be freely customized according to actual needs.

The color shifting coating 102 can be any suitable coating that can shift color under light column illumination, such as a color shifting coating comprising an organic polymer containing grains of silver halide and copper oxide, and further, an organic polymer comprising polyvinyl chloride or a polyester resin, i.e., a color shifting coating comprising polyvinyl chloride or a polyester resin containing grains of silver halide and copper oxide. Alternatively, the silver halide may include silver chloride, silver bromide, silver iodide, or a combination thereof.

When a strong light beam strikes the screen, silver halide is decomposed into silver and halogen: 2AgX ═ 2Ag + X2, the face of the screen substrate coated with the color-changing coating darkens, becomes dark gray, performs video projection, and when the projector is turned off, the silver and halogen on the screen recombine to produce silver halide under the action of the catalyst copper oxide: 2Ag + X2 is 2AgX, can normally show the picture of weaving again, and when not using the projector, the projection curtain belongs to an ornament in the room, improves the room aesthetic property.

In another example, other materials capable of increasing the projection effect may be added to the color-changing coating 102, for example, nanoparticles are added, the nanoparticles may include Ti nanoparticles, or other noble metal nanoparticles, or ceramic powder may be added, the noble metal nanoparticles may play a role in scattering, so as to improve the optical efficiency of projection, the brightness of the curtain, and the viewing angle range, and the ceramic powder may make the projection curtain have a metal texture, so as to improve the contrast between the brightness of the curtain and the curtain.

In other embodiments, the raw materials of the color-changing coating layer can include flame retardant, plasticizer, stiffening agent and the like besides polyvinyl chloride, so as to improve the performance of the curtain.

In one example, the projection screen may further include a bezel (not shown) disposed on at least two opposing sides of the projection screen, or alternatively, on the peripheral edge of the projection screen, for securing the screen substrate, and hooks or other mounting features may also be provided on the bezel for hanging the projection screen to a wall or other suitable support surface.

in one example, as shown in fig. 2, the projection curtain further includes a bluetooth module 104 for making a bluetooth connection with the projector so that audio information can be received from the projector. The bluetooth module 104 is a PCBA board integrated with bluetooth function, and is used for short distance wireless communication, where the bluetooth module 104 may be a bluetooth voice module, and the bluetooth module generally consists of a chip, a PCB board, and peripheral devices. The bluetooth module 104 may be any type of bluetooth module and is not particularly limited herein.

Alternatively, in other embodiments, the bluetooth module 104 may also be implemented by other communication modules capable of implementing communication between the projection curtain and the projector, for example, in the foregoing embodiments, data transmission and interaction are performed between the modules and devices through a data transmission module, which may be a wired data transmission module or a wireless data transmission module, where the wired data transmission module may include, but is not limited to, ethernet or other suitable wired communication manner, and the wireless data transmission module may include an Internet network, a mobile communication network (such as a GPRS network, a GSM network, a 2G network, a 3G network, a 4G network, an LTE network, or a future 5G network, etc.), a WIFI network, and the like.

the width-to-height ratio of the projection screen directly affects the quality of the picture, and the display picture is more wonderful only when the width-to-height ratio of the projection screen is completely matched with the natural resolution of the projector and the resolution (resolution) of the signal source. The width-to-height ratio of the projection screen is mainly as follows: 1.33: 1 (4: 3), mainly video/PC images, diagonal x 0.8; a width; 1.78: 1 (16: 9), primarily high definition television images (HDTV); 1.85: 1, mainly wide screen television signal images; 2.35: 1, it is mainly applied to wide-screen stereo image display. At present, 4: 3. 16: the video picture of 9 is most commonly used, and the user can select the screen with which ratio according to the display ratio of the projector.

In another embodiment, as shown in fig. 2, the projection curtain 100 further comprises a sound box 103 disposed on the curtain substrate, specifically, on the side of the curtain substrate opposite to the color changing coating. The sound box is used for playing the sound of the image displayed on the projection curtain. And this audio amplifier setting can hang on the wall with the projection curtain together on the projection curtain to can make the projection curtain present the projection curtain for having mural formula audio amplifier.

The loudspeaker box may be any suitable loudspeaker box, and optionally, as shown in fig. 3, the loudspeaker box 103 may include a sound source access device 1031, a signal amplifier 1032, and a speaker 1033. The sound source access device 1031 is used for receiving sound signals, and the signal amplifier 1032 is used for amplifying and outputting the sound signals to the loudspeaker 1033.

In this embodiment, the speaker 1033 is not adapted to be a horn, and the speaker 1033 includes a sound emitting plate which emits sound by exciting a bending wave in the sound emitting plate, and the sound emitting plate emits sound at 180 ° on a plane, ensuring that harmonious and powerful sound can be heard at any position in a room. In one example, speakers 1033 also include smart exciters (not shown) that excite the sound board to produce sounds.

An intelligent exciter, i.e. a driver, which may be, for example, a driver for a conventional loudspeaker, including a voice coil or the like, has a very small effective stroke, typically not exceeding 2m/m 2; secondly, the voice coil part needs light weight, small volume and large magnetic force, for example, the voice coil part is made of high-magnetic material, and generally, the density of magnetic beams is more than 10000 Gauss, so that the voice coil part has better expressive force. For example, to increase the output, two drivers or four drivers or other suitable number of drivers may be used to increase the output sound pressure, and with multiple drivers, a better frequency response curve can be obtained, as for the use of several drivers depending on the size and weight of the sound board area.

in one example, the projection screen further includes a lamp, wherein the lamp is disposed around the projection screen, for example, the lamp can be disposed around the edge of the projection screen, and does not obstruct the area where the projection is normally performed, or the lamp can be embedded in a frame of the projection screen, and the frame can be transparent, so that the lamp can be observed by the outside when the lamp emits light. Alternatively, the lamps may be LED lamps, fluorescent lamps, etc., wherein a plurality of lamps may be provided and have different colors, such as red, yellow, blue-green, etc., for added aesthetics.

in one example, the projection curtain further comprises a sound sensor for converting the acquired sound signal into an electrical signal to control the flashing of the lights. The acoustic sensor may comprise a capacitive or magneto-acoustic sensor. The capacitance type sound sensor obtains the conversion from a sound signal to an electric signal by changing capacitance through sound vibration, and an electret microphone is common at present; the magnetoelectric sound sensor drives a lead to cut magnetic lines of force to generate current by using sound vibration so as to achieve the conversion of sound signals to electric signals and flow into the moving coil microphone. When the projector plays videos or music, the sensor in the curtain can control the lamp to flicker according to signals fed back by the circuit, so that a user can have an atmosphere when watching the videos or listening to the music.

Furthermore, the projection curtain further comprises a conducting array which is arranged on the periphery of the projection curtain and is controlled to be conducted and cut off by the electric signal, so that the lamp is controlled to flicker, wherein the conducting array comprises a triode array. The electric signal of the sensor changes with the strength of the sound signal, when the sound signal reaches a certain strength, the collector of the triode is changed from low level to high level, the circuit is conducted, thereby controlling the lamp to be on or off and realizing the flicker.

in conclusion, the projection screen provided by the invention is provided with the mural sound box, and sounds are generated at 180 degrees on the plane, so that harmonious and powerful sounds can be heard at any position in a room. In addition, the projection curtain of the invention is a pair of murals when not in use, thus beautifying the family environment. Through the combination of curtain and mural formula bluetooth speaker, the background color of changing the curtain under different environment automatically realizes the audio amplifier and decorates and the multiple functions of projection.

Next, referring to fig. 4, a projection apparatus 10 according to another embodiment of the present invention is described, which includes the projection curtain 100 of the foregoing embodiment.

The projection curtain comprises a curtain substrate, wherein the curtain substrate is woven by textile yarns and has patterns with at least two colors; the curtain comprises a curtain substrate, and is characterized by further comprising a color-changing coating layer and a color-changing coating layer, wherein the color-changing coating layer is coated on the curtain substrate and used for enabling the curtain substrate to be illuminated by light columns to present a single color when the color-changing coating layer is illuminated by the light columns. Therefore, the projection curtain is a picture with exquisite patterns when not projected, can beautify the environment and play a good role in decorating the scene where the projection curtain is placed, and the color-changing coating changes the color of the curtain substrate into a single color (such as white, dark gray or other colors suitable for projection) when the light column irradiates the projection curtain, so that the projection curtain can be used for projecting and displaying images and the projection function of the projection curtain can still be ensured to be realized.

in addition, the projection curtain also comprises a sound box arranged on the curtain substrate and used for playing sound, specifically, the sound box is arranged on the surface of the curtain substrate opposite to the color-changing coating, and the sound box is arranged on the projection curtain and can be hung on a wall together with the projection curtain, so that the projection curtain can be presented as the projection curtain with the mural sound box, the effect of the sound quality is clear and natural when the projection curtain is hung on the wall.

Optionally, as shown in fig. 3, the sound box 103 may include an audio source access device 1031, a signal amplifier 1032 and a speaker 1033. The sound source access device 1031 is used for receiving sound signals, and the signal amplifier 1032 is used for amplifying and outputting the sound signals to the loudspeaker 1033.

It should be noted that other details of the projection curtain 100 are not repeated in the present embodiment, but those skilled in the art should appreciate that the technical features of the projection curtain 100 in the foregoing can be applied to the present embodiment without conflict.

As an example, as shown in fig. 4, the projection apparatus 10 includes a projector 110 for generating and projecting an image, and the projector is horizontally rotatable and vertically rotatable when projection is required.

the projector 110 may be any projection device having a projection function well known to those skilled in the art, for example, the projector includes a control unit, a lens unit, an operation unit, and the like.

Illustratively, the projector 110 further includes various elements for performing projector functions, such as a light source module, an image processing unit for applying image processing (e.g., a/D conversion, synchronization signal separation, rewriting/reading data to/from the frame memory) to a video signal from the outside, a driving unit for driving the display device in accordance with image data from the image processing unit, and the like.

In one example, the projector further includes a light source module, an optical-mechanical module, and a projection lens. The light source module is used for providing an illumination light beam.

The illumination device further includes a color separation optical system, and the light source module emits illumination light adjusted to have a substantially uniform illuminance distribution toward the color separation optical system. The light source device has, for example, a semiconductor laser as a light source. The color separation optical system separates illumination light from the light source device into red light LR, green light LG, and blue light LB. The color separation optical system has a 1 st dichroic mirror, a 2 nd dichroic mirror, a 1 st mirror, a 2 nd mirror, a 3 rd mirror, a relay lens, and the like.

The optical-mechanical module is used for converting the illumination light beam into an image light beam. The projection lens is used to convert the image beam into a projection beam and project the projection beam (i.e. a light beam) to form a picture on the projection screen 100, and the projection lens may be a lens assembly composed of a plurality of lenses.

The projection screen 100 may be an elegant screen substrate 101 woven from textile threads, the surface of the screen substrate 101 (i.e., the surface facing the projector) being provided with a color-changing coating 102, and when an intense light beam is emitted to the projection screen 100, silver halide is decomposed into silver and halogen: 2AgX 2Ag + X2, the drawing colour of curtain can become dark grey, carry out video projection, projection curtain 100 still has the function of audio amplifier simultaneously, can go to connect the bluetooth of projection curtain 100 through the bluetooth after the projector starts, all audio frequencies play after the audio amplifier through projection curtain 100, and this projection curtain 100 does not have loudspeaker, pronounces through arousing the bending wave in the soundboard, it is plane 180 pronunciation, it can hear harmonious powerful sound to have guaranteed everywhere in the room. When the projector is turned off, the silver and the halogen on the projection screen 100 are combined again to generate silver halide under the action of the catalyst copper oxide: 2Ag + X2 is 2AgX, and can normally display textile pictures, and when the projector is not used, the curtain belongs to a decoration in a room.

The projection device 10 may be a device including a projector, a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a personal digital assistant, or the like. The projection device 10 includes one or more processors, one or more memory devices. Optionally, the projection device may further include at least one of an input device, an output device, and an image sensor, which may be interconnected via a bus system and/or other form of connection mechanism (not shown). It should be noted that the components and structure of the projection device 10 are exemplary only, and not limiting, and the electronic device may have other components and structures as desired, such as a transceiver for transmitting and receiving signals.

The processor may be a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the projection device to perform desired functions. The processor is capable of executing the instructions stored in the memory device to perform the functions of the various modules and components of the projection device described herein. For example, a processor can include one or more embedded processors, processor cores, microprocessors, logic circuits, hardware Finite State Machines (FSMs), Digital Signal Processors (DSPs), or a combination thereof.

The storage device, i.e., the memory used to store processor-executable instructions, may include one or more computer program products, which may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, Random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, Read Only Memory (ROM), hard disk, flash memory, etc. On which one or more computer program instructions may be stored that may be executed by a processor to implement the functions of the embodiments of the invention described herein (as implemented by the processor) and/or other desired functions. Various applications and various data, such as various data used and/or generated by the applications, may also be stored in the computer-readable storage medium.

the input device may be a device used by a user to input instructions and may include one or more of a keyboard, a mouse, a microphone, a touch screen, and the like.

The output device may output various information (e.g., images or sounds) to an external (e.g., user), and may include one or more of a display, a speaker, and the like.

A communication interface (not shown) is used for communication between the projection apparatus and other devices, including wired or wireless communication. The projection device may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In one exemplary embodiment, the communication interface receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication interface further comprises a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In addition, the embodiment of the invention also provides a computer storage medium, and the computer storage medium is stored with the computer program. When the computer program is executed by a processor, each constituent module in the aforementioned projection apparatus of the aforementioned embodiments can be realized. For example, the computer storage medium may include, for example, a memory card of a smart phone, a storage component of a tablet computer, a hard disk of a personal computer, a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), a portable compact disc read only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer-readable storage medium may be any combination of one or more computer-readable storage media.

Although the illustrative embodiments have been described herein with reference to the accompanying drawings, it is to be understood that the foregoing illustrative embodiments are merely exemplary and are not intended to limit the scope of the invention thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as set forth in the appended claims.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another device, or some features may be omitted, or not executed.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the method of the present invention should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some of the modules according to embodiments of the present invention. The present invention may also be embodied as apparatus programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

Claims

1. A projection curtain, the projection curtain comprising:

the sound box is arranged on the curtain substrate and used for playing sound.

2. The projection curtain of claim 1, wherein the color shifting coating comprises an organic polymer comprising grains of silver halide and copper oxide.

3. The projection curtain of claim 2, wherein the organic polymer comprises polyvinyl chloride.

4. The projection curtain of claim 1, wherein the acoustic boxes are disposed on a side of the curtain substrate opposite the color changing coating.

5. The projection curtain of claim 4, wherein the sound box comprises: sound source access equipment, a signal amplifier and a loudspeaker.

6. the projection curtain of claim 5, wherein the speaker comprises a sound board, the speaker to emit sound by exciting bending waves in the sound board.

7. The projection curtain of claim 1, wherein the projection curtain further comprises a bluetooth module to enable a bluetooth connection with the projector.

8. The projection curtain of claim 1, wherein the projection curtain further comprises:

the lamps are arranged around the projection curtain;

9. The projection curtain of claim 8,

And the conducting array is arranged on the periphery of the projection curtain and is controlled by the electric signal to conduct and cut off so as to control the flickering of the lamp, wherein the conducting array comprises a triode array.

10. A projection device, the projection device comprising:

A projector for generating and projecting an image;

The projection curtain of any of claims 1-9.