Projection device and projection system

Abstract

The utility model provides a projection device and a projection system, the projection device comprises a laser host, and the laser host is used for projecting an image light beam; and the wireless charging communication unit is arranged on the laser host, the wireless charging communication unit comprises a wireless communication module and a wireless charging module, the wireless communication module is used for identifying information of the terminal equipment so as to project the information of the terminal equipment, and the wireless charging module is used for charging the terminal equipment. The interactive experience of the terminal equipment and the projection device is improved, and the diversified requirements of a user in different scenes are met.

Description

Technical Field

[0001] The present application relates to the field of projection technology, and in particular to a projection device and a projection system. Background Art

[0002] With the continuous development of society, people's pursuits are also constantly changing. Laser projection products are increasingly used in people's work and life. Among them, the use of laser projection equipment for near field communication (NFC) projection, file transfer and wireless charging brings convenience to people's life and work. Especially in the office environment, users can use NFC to transfer files to terminal devices, such as mobile phones. This type of transmission method has better confidentiality and security than far-field communications such as Wireless Fidelity (WiFi) and Bluetooth.

[0003] Currently, there is a demand for mobile phone screen projection when using the phone at home or in office meetings. When the battery of mobile terminals such as mobile phones is low, users need to find a power source to charge the mobile phone, resulting in poor convenience of the entire screen projection for users.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] The main purpose of this application is to provide a projection device and a projection system, which improves the interactive experience between the terminal device and the projection device and meets the diverse needs of users in different scenarios.

[0006] To achieve the above objectives, in a first aspect, the present application provides a projection device, comprising:

[0007] Laser host, the laser host is used to project image beams;

[0008] A wireless charging communication unit is provided on the laser host. The wireless charging communication unit includes a wireless communication module and a wireless charging module. The wireless communication module is used to identify the information of the terminal device to project the information of the terminal device. The wireless charging module is used to charge the terminal device.

[0009] The beneficial effect of the present application is that through the wireless communication module, namely NFC (near field communication) technology, the user only needs to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional screen projection operation steps and improves the user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of the user when connecting the projection device. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power terminal devices at home or in conference rooms, and provides additional convenience. Overall, this technology significantly improves the interactive experience between the terminal device and the projection device through the combination of NFC one-key projection and wireless charging functions, and meets the diverse needs of users in different scenarios.

[0010] Based on the above technical solution, the present application can also be improved as follows.

[0011] In some optional embodiments, the wireless communication module and the wireless charging module are both located on the same inner wall surface of the laser host.

[0012] It should be noted that such a setting facilitates the integration of circuits and helps optimize the internal space layout of the device, making the device more compact and miniaturized. The overall volume of the projection device can be reduced, making it more portable and suitable for a variety of usage scenarios. When a mobile phone that supports wireless charging is placed on the upper shell of the laser host, the wireless charging function can be realized. This solves the emergency need of low battery on mobile phones at home or in conference rooms, providing additional convenience.

[0013] In some optional embodiments, the wireless charging module and the wireless communication module are integrated on the same circuit board, and the wireless charging module wraps at least a portion of the wireless communication module.

[0014] It should be noted that such a configuration can significantly reduce the area of ​​the circuit board, making the device more compact and miniaturized, reducing the number of independent modules and connecting wires, improving the integration of the circuit board and the simplicity of the overall design. This compact design is suitable for the miniaturization of projection devices.

[0015] In some optional embodiments, the wireless charging module includes a wireless charging coil, and the wireless communication module includes a wireless communication coil, which is located inside the wireless charging coil, wherein the wireless communication coil and the wireless charging coil have different frequencies.

[0016] It should be noted that this design not only optimizes the internal structure and appearance design of the device, but also improves the performance, stability and user experience of the device, while having significant cost-effectiveness and reliability.

[0017] In some optional implementations, the wireless charging module and the wireless communication module are spaced apart.

[0018] It should be noted that the interval setting can be adjusted according to actual conditions, which means that the setting positions of the wireless charging module and the wireless communication module are adjustable.

[0019] In some optional embodiments, the wireless communication module and the wireless charging module are respectively located on different inner side walls of the laser host;

[0020] The laser host has a bearing surface, and the bearing surface is used to bear the wireless charging module.

[0021] It should be noted that the setting of the carrying surface facilitates better placement of the terminal device and charging it through the wireless charging module.

[0022] In some optional embodiments, the wireless charging module further includes an identification portion, which is located on the outer wall of the laser host, and the terminal device is placed in the identification portion.

[0023] It should be noted that, since the wireless charging module is arranged on the inner wall surface of the laser host, the location of the wireless charging module cannot be identified from the appearance of the laser host. Therefore, the setting of the identification area makes it easier for users to find it quickly and place it for charging.

[0024] In some optional embodiments, the identification portion is an identification boss, and the identification portion protrudes from the outer wall surface of the laser host;

[0025] A plurality of anti-slip parts are arranged on the identification part, and the plurality of anti-slip parts are arranged at intervals.

[0026] It should be noted that such a setting not only enhances the recognition function and operational convenience, but also improves the user experience and the safety, durability and reliability of the equipment, while having significant manufacturing and maintenance advantages.

[0027] In some optional embodiments, the anti-slip member is a plastic block or a plastic strip.

[0028] It should be noted that designing the anti-slip parts as plastic blocks or strips can not only provide excellent anti-slip effects and comfortable user experience, but also improve the safety, durability and reliability of the equipment, while having significant manufacturing and maintenance advantages. The diverse selection of plastic materials and their easy molding properties also provide more possibilities for the aesthetic design of the equipment.

[0029] In a second aspect, the present application also provides a projection system, including a projection screen and the above-mentioned projection device, wherein the projection device is used to project a projection picture onto the projection screen.

[0030] The present application provides a projection device and a projection system, wherein the projection system includes a projection screen and a projection device, wherein the projection device is used to project a projection picture onto the projection screen; wherein the projection device includes: a laser host, wherein the laser host is used to project an image beam; and a wireless charging communication unit, wherein the wireless charging communication unit is arranged on the laser host, wherein the wireless charging communication unit includes a wireless communication module and a wireless charging module, wherein the wireless communication module is used to identify information of a terminal device to project the information of the terminal device, and wherein the wireless charging module is used to charge the terminal device.

[0031] Through the wireless communication module, namely NFC (near field communication) technology, users only need to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional projection operation steps and improves user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of users when connecting to the projection device. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power terminal devices at home or in conference rooms and provides additional convenience. Overall, this technology significantly improves the interactive experience between terminal devices and projection devices through the combination of NFC one-click projection and wireless charging functions, and meets the diverse needs of users in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 A schematic diagram of the structure of a wireless charging communication unit at a first viewing angle of a projection device provided in an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the structure of another wireless charging communication unit at a first viewing angle of a projection device provided in an embodiment of the present application;

[0035] Figure 3A schematic diagram of the structure of a projection device at a second viewing angle provided by an embodiment of the present application;

[0036] Figure 4 A schematic diagram of the structure of a wireless charging communication unit of a projection device provided in an embodiment of the present application at a third viewing angle;

[0037] Figure 5 A schematic diagram of a circuit for coupling and communicating between a wireless charging module in a projection device and a mainboard end in the projection device provided in an embodiment of the present application;

[0038] Figure 6 A schematic diagram of a circuit for coupling and communicating between a wireless charging communication unit in a projection device and a mainboard end in the projection device provided in an embodiment of the present application;

[0039] Figure 7 A schematic diagram of the structure of another wireless charging communication unit of the projection device provided in an embodiment of the present application at a third viewing angle;

[0040] Figure 8 A schematic diagram of the structure of another wireless charging communication unit of the projection device provided in an embodiment of the present application;

[0041] Fig. 9 A schematic diagram of the structure of the identification part of the projection device provided in an embodiment of the present application;

[0042] Fig.10 A schematic structural diagram of an anti-slip component in a projection device provided in an embodiment of the present application;

[0043] Fig.11 A schematic structural diagram of another anti-slip component in the projection device provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 100- projection device;

[0046] 110-Laser host;

[0047] 120-wireless charging communication unit;

[0048] 121- wireless communication module;

[0049] 122-wireless charging module;

[0050] 1221-Identification Department;

[0051] 130-base;

[0052] 140- Anti-slip parts. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application. All other embodiments obtained are within the scope of protection of the present application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0054] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Currently, there is a demand for mobile phone screen projection when using the phone at home or in office meetings. When the battery of mobile terminals such as mobile phones is low, users need to find a power source to charge the mobile phone, resulting in poor convenience of the entire screen projection for users.

[0058] In order to overcome the defects in the prior art, the projection device and projection system provided by the present application, through the wireless communication module, namely NFC (near field communication) technology, the user only needs to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional projection operation steps and improves the user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of the user when connecting the projection device. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power terminal devices at home or in conference rooms, and provides additional convenience. Overall, this technology significantly improves the interactive experience between the terminal device and the projection device through the combination of NFC one-key projection and wireless charging functions, and meets the diverse needs of users in different scenarios.

[0059] The contents of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application more clearly and in detail.

[0060] Figure 1 This is a schematic diagram of the structure of a wireless charging communication unit at a first viewing angle of a projection device provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the structure of another wireless charging communication unit at a first viewing angle of a projection device provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the structure of the second viewing angle of the projection device provided in an embodiment of the present application. Figure 4 This is a schematic structural diagram of a wireless charging communication unit at a third viewing angle of a projection device provided in an embodiment of the present application.

[0061] like Figures 1 to 4 As shown, the embodiment of the present application provides a projection device 100, including:

[0062] A laser host 110, the laser host 110 is used to project an image beam;

[0063] The wireless charging communication unit 120 is arranged on the laser host 110. The wireless charging communication unit 120 includes a wireless communication module 121 and a wireless charging module 122. The wireless communication module 121 is used to identify the information of the terminal device to project the information of the terminal device. The wireless charging module 122 is used to charge the terminal device.

[0064] Through the above settings, that is, through the wireless communication module 121, that is, NFC (near field communication) technology, the user only needs to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional projection operation steps and improves user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of the user when connecting the projection device 100. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device 100, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power of terminal devices at home or in conference rooms, and provides additional convenience. Overall, this technology significantly improves the interactive experience of the terminal device and the projection device 100 through the combination of NFC one-key projection and wireless charging functions, meets the diverse needs of users in different scenarios, and meets the emergency needs of low power of the device, providing additional convenience. In general, this technology significantly improves the interactive experience between the terminal device and the projection device 100 through the combination of NFC one-click screen projection and wireless charging functions, and meets the diverse needs of users in different scenarios.

[0065] It should be noted that each structure is described in detail below.

[0066] It should be noted that the laser host 110 may include structures such as a lighting component and a projection lens. The laser host 110 can project an image beam, and the image beam can project an image on a projection screen for users to watch.

[0067] The laser host 110 may include a light source, an optical machine and a lens connected in sequence along the light beam transmission direction. The light source, the optical machine and the lens connected in sequence may form an L-shape, making the structure of the laser host 110 more compact.

[0068] When the projection device 100 is working, the light source of the laser host 110 can provide a laser beam to the optical machine, and the optical machine can modulate the laser beam provided by the light source and project the modulated laser beam onto the lens, so that the laser beam is emitted from the lens to the projection screen and reflected on the projection screen so that the user can view the image.

[0069] Exemplarily, the above optical machine may include a plurality of lens groups, such as a total internal reflection (TIR) ​​prism and a reverse total internal reflection (RTIR) mirror, for forming an illumination light path so that the illumination light beam can be incident on the core device in the optical machine, namely, a light valve, which is used to modulate the light beam and make the modulated light beam incident on the lens group of the lens for imaging. On this basis, another exemplary embodiment, the light valve may be a digital micromirror device (DMD).

[0070] Exemplarily, the above-mentioned lens may be an ultra-short-throw projection lens, which generally includes a refractor and a reflector group, and is used to receive the light beam reflected by the DMD for imaging. The ultra-short-throw projection lens corrects and amplifies the imaging light beam, and after reflection, it is incident on the projection screen for imaging. The ultra-short-throw projection device 100 can achieve a smaller projection ratio (the projection ratio is the ratio of the vertical distance from the center point of the lens light-emitting surface to the plane where the projection screen is located to the width of the display area on the projection screen, where the width of the display area refers to the size of the display area in the horizontal direction), such as less than or equal to 0.3, so the projection device 100 can be closer to the projection screen when projecting an image to reduce the overall space occupied by the laser TV.

[0071] In some embodiments, the overall shape of the projection device 100 may be approximately a rectangular parallelepiped.

[0072] In some other embodiments, the projection device 100 further includes a base 130, and the base 130 carries the laser host 110.

[0073] In some examples, the base 130 may be made of plastic.

[0074] It should be noted that the specific material of the base 130 is not excessively limited in the embodiment of the present application.

[0075] Of course, during manufacturing, the base 130 can also be made of steel plates, plastics or synthetic materials while ensuring strength.

[0076] Specifically, the portion of the projection device 100 corresponding to the wireless communication module 121 and the wireless charging module 122 should be made of non-metallic material, otherwise the communication will be affected, and the remaining portion can be made of metallic material.

[0077] It should be noted that the wireless communication module 121 can be Near Field Communication (NFC), which is a short-range high-frequency wireless communication technology that matches the field frequency between the target device and another third-party device to enable data reading and writing between the two, allowing non-contact point-to-point data transmission between electronic devices, which is a data transmission process. This technology evolved from contactless radio frequency identification (RFID). Near field communication coil modules, i.e., near field communication NFC coil modules, are usually used for near field communication.

[0078] Among them, the target device is the laser host 110 here, and the third-party device can be a terminal device. The purpose is to read the data in the terminal device and perform screen projection, which is more suitable for conference mode, home theater mode, etc.

[0079] In addition, it should be noted that the terminal device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a personal digital assistant (PDA), etc., and the embodiments of the present application are not limited to this.

[0080] It should be noted that the wireless charging module 122 may be a wireless charging technology that utilizes the near-field induction principle to transfer power between two induction coils.

[0081] As mentioned above, the NFC near field communication technology and the wireless charging technology respectively require the use of an NFC coil and a wireless charging coil to identify the coil of a terminal device, and then turn on the NFC coil or the wireless charging coil through its own control circuit.

[0082] Figure 5 A schematic diagram of a circuit for coupling and communicating between a wireless charging module in a projection device and a mainboard terminal in the projection device provided in an embodiment of the present application. In some embodiments, for example Figure 4 and Figure 5 As shown, it is a circuit diagram of the coupling communication between the wireless charging module 122 and the mainboard wireless charging module 122. When a terminal device that supports wireless charging, such as a mobile phone, is placed on the upper shell of the laser host 110, the wireless charging module 122 and the wireless charging IC form a transmitting device to charge RX devices such as mobile phones, and the power is provided by the projection device 100.

[0083] like Figures 1 to 4 As shown, in some optional embodiments, the wireless communication module 121 and the wireless charging module 122 are both located on the same inner wall surface of the laser host 110 .

[0084] It should be noted that such a setting facilitates the integration of circuits, helps optimize the internal space layout of the device, and makes the device more compact and miniaturized. The overall volume of the projection device 100 can be reduced, making it more portable and suitable for a variety of usage scenarios. When a mobile phone that supports wireless charging is placed on the upper shell of the laser host 110, the wireless charging function can be realized. This solves the emergency demand for low battery of the mobile phone at home or in the conference room, and provides additional convenience.

[0085] The design of locating the wireless communication module 121 and the wireless charging module 122 on the same inner wall of the laser host 110 not only optimizes the internal structure and appearance design of the projection device 100, but also improves the performance, stability and user experience of the projection device 100, while having significant cost-effectiveness.

[0086] In some optional embodiments, the wireless charging module 122 and the wireless communication module 121 are integrated on the same circuit board, and the wireless charging module 122 wraps at least a portion of the wireless communication module 121 .

[0087] It should be noted that such a configuration can significantly reduce the area of ​​the circuit board, making the device more compact and miniaturized, reducing the number of independent modules and connecting wires, and improving the integration of the circuit board and the simplicity of the overall design. This compact design is suitable for the miniaturization of the projection device 100.

[0088] In addition, the modules are integrated on the same circuit board, which makes maintenance and replacement more convenient and reduces maintenance costs and time.

[0089] Specifically, the signal is received by the wireless charging module 122 or the wireless communication module 121, and then the signal judgment module judges the converted electrical signal, and then the control module controls the wireless charging module 122 or the wireless communication module 121 to send an electrical signal, so that the terminal device is in charging mode or identification mode, or both modes are performed simultaneously.

[0090] The signal determination module and the control module can be integrated into the CPU chip. Here, the CPU chip, the chip in the wireless charging module 122 and the chip in the wireless communication module 121 are all attached to the circuit board. Here, the control module can be selected from a CPU, an MCU, a single chip microcomputer, etc.

[0091] In some optional embodiments, the wireless charging module 122 includes a wireless charging coil, and the wireless communication module 121 includes a wireless communication coil, which is located inside the wireless charging coil, wherein the wireless communication coil and the wireless charging coil have different frequencies.

[0092] It should be noted that this design not only optimizes the internal structure and appearance design of the device, but also improves the performance, stability and user experience of the device, while having significant cost-effectiveness and reliability.

[0093] In addition, placing the wireless communication coil inside the wireless charging coil helps to optimize the internal space layout of the projection device 100, making the projection device 100 more compact and miniaturized.

[0094] This concentric design makes full use of the space of the coil, reduces the overall volume of the projection device 100, and is suitable for miniaturization and portability. By designing different operating frequencies, the electromagnetic interference between the wireless communication coil and the wireless charging coil can be effectively reduced, and the stability and reliability of their respective functions can be improved. The design of different frequencies ensures the clarity of the identification signal and the charging signal, and avoids signal confusion and interference.

[0095] Figure 6 A schematic diagram of a circuit for coupling communication between a wireless charging communication unit in a projection device and a mainboard end in the projection device provided in an embodiment of the present application. Specifically, in addition to the tag form, NFC can also be in an active form, and near-field communication between two NFC devices is achieved through an NFC chip, such as Figure 6 As shown, the NFC coil and the wireless charging coil are combined into a two-in-one form. In addition to the above functions, fast file transfer between the mobile phone and the projection device 100 can be achieved. This function is achieved through the near-field communication of NFC itself. The main control chip of the projection device 100 communicates with the NFC chip through the I2C or SPI interface. When a mobile phone or other device is close to the projection device 100, an NFC connection is established. The mobile phone application sends the content to be projected to the projection device 100 through NFC communication. After the main control chip of the projection device 100 receives the data, it projects the data in the form of a picture or file. Compared with Bluetooth, NFC has certain advantages in security. Due to the small communication range of NFC, communication can only be carried out when the devices are very close to each other, so relatively high physical contact is required, making it difficult for hackers to attack it. In addition, NFC can also use encryption technology to protect the security of data transmission.

[0096] Figure 7 This is a schematic diagram of the structure of another wireless charging communication unit at a third viewing angle of the projection device provided in an embodiment of the present application. Figure 7 As shown, in some optional implementations, the wireless charging module 122 and the wireless communication module 121 are arranged at intervals.

[0097] It should be noted that the interval setting can be adjusted according to actual conditions, which means that the setting positions of the wireless charging module 122 and the wireless communication module 121 are adjustable.

[0098] In some optional embodiments, the wireless communication module 121 and the wireless charging module 122 are respectively located on different inner side walls of the laser host 110;

[0099] The laser host 110 has a carrying surface, and the carrying surface is used to carry the wireless charging module 122 .

[0100] It should be noted that the setting of the carrying surface facilitates better placement of the terminal device and charging it through the wireless charging module 122.

[0101] In some embodiments, the wireless charging module 122 can be set on the upper end surface, lower end surface, etc. of the laser host 110, and the wireless communication module 121 can be set on the upper end surface, lower end surface, side wall surface, etc. of the laser host 110. Considering that the wireless communication module 121 is used for identification, the setting position is more variable, and the position where the wireless charging module 122 is set requires the terminal device to fit or be placed for a long time, so a relatively flat bearing surface is required.

[0102] Figure 8 A schematic diagram of the structure of another wireless charging communication unit of the projection device provided in the embodiment of the present application. In some embodiments, such as Figure 8 As shown, the wireless communication module 121 is disposed on the base 130 .

[0103] In some embodiments, the wireless charging module 122 is located on the top of the laser host 110 , and the wireless communication module 121 is located on the side column of the laser host 110 ;

[0104] In some embodiments, the wireless charging module 122 is on the top of the laser host 110, and the wireless communication module 121 is located on the base 130 of the laser host 110, and the base 130 is a flat position.

[0105] In some embodiments, the wireless charging module 122 is located on the base 130 of the laser host 110 , and the wireless communication module 121 is located on the top of the laser host 110 .

[0106] In some embodiments, the wireless charging module 122 is located on the base 130 of the laser host 110 , and the wireless communication module 121 is located on the side column of the laser host 110 .

[0107] In other embodiments, the wireless communication module 121 and the wireless charging module 122 are both located at the base 130 of the laser host 110 . The wireless communication module 121 and the wireless charging module 122 can be placed in two-in-one or separately at the base 130 of the laser host 110 .

[0108] Fig. 9 This is a schematic diagram of the structure of the identification part in the projection device provided in the embodiment of the present application, such as Fig. 9 As shown, in some optional embodiments, the wireless charging module 122 further includes an identification portion 1221 , the identification portion 1221 is located on the outer wall of the laser host 110 , and the terminal device is placed in the identification portion 1221 .

[0109] It should be noted that, since the wireless charging module 122 is arranged on the inner wall surface of the laser host 110, the position of the wireless charging module 122 cannot be identified from the appearance of the laser host 110. Therefore, the setting of the identification area makes it easier for users to quickly find it and place it for charging.

[0110] In some embodiments, in order to improve the aesthetics, the identification area can be a label, or a logo, or some patterns, etc., without further limitation here.

[0111] It should be noted that the NFC coil in the above position corresponds to the identification part 1221, which is a passive NFC. The NFC coil only provides a one-touch screen projection function, so the position is not necessarily a flat position. If the NFC is an active NFC design (such as recharging the bus card through NFC), the NFC coil needs to be placed in a stable position to facilitate data transmission. Near-field NFC data transmission is more secure than WIFI and Bluetooth far-field transmission.

[0112] It should be noted that the wireless charging coil may be a TX coil, and the wireless communication coil may be an NFC coil.

[0113] In some embodiments, the TX coil and the NFC coil are both on the top of the whole device, and can be two-in-one or placed separately on the top.

[0114] In other embodiments, the TX coil and the NFC coil are both on the base 130 of the whole device (the base 130 is flat), and can be two-in-one or placed separately on the base 130 .

[0115] Fig.10 This is a schematic structural diagram of an anti-slip component in a projection device provided in an embodiment of the present application. Fig.11A schematic diagram of the structure of another anti-slip member in the projection device provided in an embodiment of the present application is shown in FIG. Figures 9 to 11 As shown, in some optional embodiments, the identification portion 1221 is an identification boss, and the identification portion 1221 protrudes from the outer wall surface of the laser host 110;

[0116] A plurality of anti-slip members 140 are disposed on the identification portion 1221 , and the plurality of anti-slip members 140 are disposed at intervals.

[0117] It should be noted that such a setting not only enhances the recognition function and operational convenience, but also improves the user experience and the safety, durability and reliability of the equipment, while having significant manufacturing and maintenance advantages.

[0118] The identification portion 1221 is designed as a boss, making it more obvious and easy to identify in appearance, and the user can quickly find the identification portion 1221 for operation. The protruding identification portion 1221 provides intuitive physical positioning, and the user can quickly find the identification area by touch, which improves the convenience of operation.

[0119] In addition, a plurality of anti-slip parts 140 are provided on the identification portion 1221, which can effectively prevent the terminal device from sliding during operation by the user, thereby improving the stability and accuracy of the operation.

[0120] In some embodiments, the anti-slip member 140 is generally made of wear-resistant material, which can maintain a good anti-slip effect during long-term use and improve the durability of the device.

[0121] In some optional embodiments, the anti-slip member 140 is a plastic block or a plastic strip.

[0122] It should be noted that designing the anti-slip member 140 as a plastic block or a plastic strip can not only provide excellent anti-slip effect and comfortable user experience, but also improve the safety, durability and reliability of the device, and has significant manufacturing and maintenance advantages. The diverse selection of plastic materials and easy molding characteristics also provide more possibilities for the aesthetic design of the device.

[0123] Plastic materials usually have a higher coefficient of friction and can provide a good anti-slip effect, preventing the user's fingers from slipping during operation and improving the stability and accuracy of the operation.

[0124] In some embodiments, the plastic material is easy to process and shape, and can be formed in one step during the manufacturing process, thereby simplifying the manufacturing process and improving production efficiency.

[0125] In some embodiments, the anti-slip member 140 and the identification portion 1221 are connected in an integrated manner. In other embodiments, the anti-slip member 140 and the identification portion 1221 may also be connected in other manners. As long as the connection method can fix the anti-slip member 140 and the identification portion 1221, the purpose of this embodiment can be achieved. Here, there is no restriction on the connection method between the anti-slip member 140 and the identification portion 1221.

[0126] The projection device provided in the embodiment of the present application includes: a laser host, which is used to project an image beam; a wireless charging communication unit, which is arranged on the laser host, and the wireless charging communication unit includes a wireless communication module and a wireless charging module, the wireless communication module is used to identify the information of the terminal device to project the information of the terminal device, and the wireless charging module is used to charge the terminal device.

[0127] Through the wireless communication module, namely NFC (near field communication) technology, users only need to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional projection operation steps and improves user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of users when connecting to the projection device. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power terminal devices at home or in conference rooms and provides additional convenience. Overall, this technology significantly improves the interactive experience between terminal devices and projection devices through the combination of NFC one-click projection and wireless charging functions, and meets the diverse needs of users in different scenarios.

[0128] In addition, an embodiment of the present application further provides a projection system, including a projection screen and the above-mentioned projection device 100, wherein the projection device 100 is used to project a projection picture onto the projection screen.

[0129] The projection system provided in this embodiment specifically includes a projection device and the projection device in the aforementioned embodiment, and the projection device is used to project a projection picture onto a display film of a projection screen.

[0130] The specific structure, working principle and function of the projection device have been described in detail in the above-mentioned embodiment 1, and will not be repeated here.

[0131] Specifically, in the projection system of this embodiment, the projection device 100 can be any existing projector, such as a laser projector, etc. The projection device 100 can project a projection image onto the display film of the projection screen, so that the display film can display the projection image for people to watch.

[0132] The projection screen comprises a display film, and the front side of the display film is a projection light receiving surface.

[0133] It should be noted that the projection screen includes a diaphragm body and a connecting cloth. The diaphragm body is usually made of hard materials, including multiple optical structure layers, and has a certain degree of hardness, brittleness and rigidity compared to a soft screen. Therefore, when the diaphragm body is stretched, a relatively flat surface can be formed. In this way, at least part of the front area of ​​the diaphragm body can be used as a light receiving area for projecting images, so that the picture and image can be projected on the front of the diaphragm body for display.

[0134] Since the hard material constituting the diaphragm body is usually hard and brittle, if holes or grooves are directly punched on the hard diaphragm body for fixing, the diaphragm body is likely to crack.

[0135] In order to connect and fix the hard diaphragm body, the display diaphragm in this embodiment further includes a soft connecting cloth. The connecting cloth can be bonded to the hard diaphragm body and connected to other fixing structures, thereby completing the fixation of the diaphragm body.

[0136] At this time, the connecting cloth and the diaphragm body are bonded to each other, so the stretching degree of the connecting cloth will also affect the curling or unfolding of the diaphragm body.

[0137] In some examples, in order to achieve connection with the diaphragm body, the connecting cloth has a sufficient size to at least cover the area on the back of the diaphragm body opposite to the front light-receiving area. At this time, the back of the light-receiving area is bonded to the connecting cloth. In this way, when the connecting cloth is in a flat stretched state, the light-receiving area on the diaphragm body for projecting an image will also be stretched, thereby achieving better picture display quality.

[0138] Through the wireless communication module, namely NFC (near field communication) technology, users only need to bring the terminal device close to the tag to automatically read the tag content and start the corresponding terminal device application, and then project the content. This greatly simplifies the traditional projection operation steps and improves user experience and operation efficiency. NFC technology provides a fast and stable connection method, reducing the waiting time and operation complexity of users when connecting to the projection device. Through the combination of NFC technology and wireless charging function, NFC projection and wireless charging technology are integrated into a projection device, which reflects the innovation and practicality of the technology. Users can more easily perform projection and charging operations, reduce dependence on multiple devices and cables, and improve the integration and ease of use of the device. It solves the emergency needs of low power terminal devices at home or in conference rooms and provides additional convenience. Overall, this technology significantly improves the interactive experience between terminal devices and projection devices through the combination of NFC one-click projection and wireless charging functions, and meets the diverse needs of users in different scenarios.

[0139] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0140] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0141] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A projection device, characterized in that: include: A laser host, wherein the laser host is used to project an image beam; A wireless charging communication unit, wherein the wireless charging communication unit is arranged on the laser host, and the wireless charging communication unit comprises a wireless communication module and a wireless charging module, wherein the wireless communication module is used to identify the information of the terminal device to project the information of the terminal device, and the wireless charging module is used to charge the terminal device.

2. The projection device according to claim 1, characterized in that: The wireless communication module and the wireless charging module are both located on the same inner wall surface of the laser host.

3. The projection device according to claim 2, characterized in that: The wireless charging module and the wireless communication module are integrated on the same circuit board, and the wireless charging module wraps at least a portion of the wireless communication module.

4. The projection device according to claim 3, characterized in that: The wireless charging module includes a wireless charging coil, and the wireless communication module includes a wireless communication coil, wherein the wireless communication coil is located inside the wireless charging coil, wherein the wireless communication coil and the wireless charging coil have different frequencies.

5. The projection device according to claim 2, characterized in that: The wireless charging module and the wireless communication module are arranged at intervals.

6. The projection device according to claim 1, characterized in that: The wireless communication module and the wireless charging module are respectively located on different inner side walls of the laser host; The laser host has a bearing surface, and the bearing surface is used to bear the wireless charging module.

7. The projection device according to any one of claims 1 to 6, characterized in that: The wireless charging module also includes an identification portion, which is located on the outer wall of the laser host, and the terminal device is placed in the identification portion.

8. The projection device according to claim 7, characterized in that: The identification portion is an identification boss, and the identification portion protrudes from the outer wall surface of the laser host; A plurality of anti-slip parts are arranged on the identification portion, and the plurality of anti-slip parts are arranged at intervals.

9. The projection device according to claim 8, characterized in that: The anti-slip part is a plastic block or a plastic strip.

10. A projection system, characterized in that: It comprises a projection screen and the projection device according to any one of claims 1 to 9, wherein the projection device is used to project a projection picture onto the projection screen.

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