Passive photo frame and photo frame assembly

Abstract

The embodiment of the utility model provides a passive photo frame and a photo frame assembly, the passive photo frame comprises a frame body, a display part and a passive driving circuit, the display part is installed on the frame body, the display part is used for displaying images, and the resolution ratio of the display part is larger than or equal to 180 dpi; and / or the resolution ratio of the display part is greater than or equal to 1600 * 960, and the passive driving circuit is arranged in the frame body and is used for driving the display part to display an image, so that when the resolution ratio of the display part is greater than or equal to 180dpi, the display part can present a high-quality image. When the resolution of the display part is larger than or equal to 1600 * 960, it is ensured that the display part can present high-quality images. The passive driving circuit is arranged on the frame body and is used for driving the display part to display an image. According to the passive photo frame, the passive driving circuit directly obtains electric energy from the external equipment, a battery does not need to be arranged, the thickness of the passive photo frame is small, on one hand, the attractiveness of the passive photo frame is improved, and on the other hand, the space needed for placing the passive photo frame is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of photo frames, and in particular to a passive photo frame and a photo frame assembly. Background Art

[0002] With the development of technology, traditional photo frames have been gradually replaced by electronic photo frames. The electronic photo frames include a frame, a display unit and a battery. The display unit and the battery are both installed in the frame, and the display unit is electrically connected to the battery so that the battery can power the display unit. However, the clarity of the pictures displayed by the display unit in the related art is poor, and the presence of the battery causes the electronic photo frame to be thicker. The thicker electronic photo frame not only affects the aesthetics of the electronic photo frame, but also makes it impossible to place the electronic photo frame in a small space. Utility Model Content

[0003] The embodiments of the present application provide a passive photo frame and a photo frame assembly, aiming to solve the problems in the related art in that the clarity of the picture displayed on the display portion is poor, the thickness of the electronic photo frame affects the aesthetics of the electronic photo frame, and the electronic photo frame cannot be placed in a small space.

[0004] In a first aspect, an embodiment of the present application provides a passive photo frame, comprising:

[0005] frame;

[0006] A display unit is mounted on the frame, the display unit is used to display images, and the resolution of the display unit is greater than or equal to 180 dpi; and / or the resolution of the display unit is greater than or equal to 1600*960;

[0007] The passive driving circuit is provided in the frame body and is used for driving the display unit to display an image.

[0008] In some embodiments, the display portion includes electronic paper and / or an ink screen.

[0009] In some embodiments, the frame is provided with a wireless communication interface, and the wireless communication interface is used for wireless communication with an external device.

[0010] In some embodiments, the wireless communication interface includes wireless LAN and / or Bluetooth.

[0011] In a second aspect, an embodiment of the present application provides a photo frame assembly, comprising:

[0012] A passive photo frame as described above;

[0013] A base is provided, wherein the base can supply power to the passive photo frame so that the passive photo frame updates display content.

[0014] In some embodiments, the base is provided with a power connection terminal, and the power connection terminal is used to connect to the mains power; and / or,

[0015] The base includes a shell and a battery, and the battery is installed in the shell.

[0016] In some embodiments, the base includes a transmitting antenna capable of emitting a radio frequency signal;

[0017] The passive driving circuit includes an antenna circuit, a communication circuit, a microprocessor and a power supply circuit. The communication circuit is connected to the antenna circuit, the microprocessor is connected to the communication circuit, and wirelessly communicates with the base through the communication circuit and the antenna circuit. The power supply circuit is connected to the antenna circuit to convert the radio frequency signal emitted by the base into electrical energy through the antenna circuit.

[0018] In some embodiments, a positioning structure is further provided between the base and the frame, and the positioning structure includes a positioning portion and a matching portion adapted to the positioning portion, one of the positioning portion and the matching portion is provided on the base, and the other is provided on the frame.

[0019] In some embodiments, the positioning portion includes a positioning groove, and the matching portion includes a positioning protrusion.

[0020] In some embodiments, the frame comprises:

[0021] A frame body for mounting the display unit;

[0022] A rotating connection structure is rotatably connected between the frame body and the base so that the angle between the frame body and the base is adjustable, wherein the rotating connection structure is provided with the matching portion.

[0023] In some embodiments, the rotating connection structure includes a plurality of connecting rods, and the heads and tails of the plurality of connecting rods are hinged in sequence. The plurality of connecting rods include two first connecting rods at the edge, one of the two first connecting rods is connected to the frame body, and the other of the two first connecting rods is connected to the base, and the other of the two first connecting rods is provided with the matching part.

[0024] In some embodiments, one of the two first connecting rods is detachably connected to the frame body.

[0025] The passive photo frame of the present application embodiment mainly consists of three parts: a frame, a display unit, and a passive drive circuit. The display unit is mounted on the frame. When the display unit has a resolution greater than or equal to 180 dpi, the display unit can display high-quality images. When the display unit has a resolution greater than or equal to 1600*960, the display unit can also display high-quality images. The passive drive circuit is located in the frame and is used to drive the display unit to display images. The passive drive circuit directly draws power from an external device, eliminating the need for a battery. This makes the passive photo frame thinner, improving its aesthetics while reducing the space required for placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0027] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0028] Figure 1 A schematic structural diagram of a passive photo frame provided in an embodiment of the present application;

[0029] Figure 2 A schematic structural diagram of a photo frame assembly provided in an embodiment of the present application;

[0030] Figure 3 for Figure 2 The structure diagram of the photo frame assembly shown is that the frame body and the base are at a first angle;

[0031] Figure 4 for Figure 2 The schematic diagram of the structure of the photo frame assembly shown is that the frame body and the base are at a second angle;

[0032] Figure 5 for Figure 2 An exploded schematic diagram of the picture frame assembly is shown;

[0033] Figure 6 One of the structural diagrams of the passive driving circuit provided in the embodiment of the present application;

[0034] Figure 7 This is the second structural diagram of the passive driving circuit provided in an embodiment of the present application.

[0035] Description of reference numerals:

[0036] 100. Photo frame assembly;

[0037] 10. Passive photo frame, 1. Frame, 11. Frame body, 12. Rotating connection structure, 121. Connecting rod, 1211. First connecting rod, 2. Display unit, 3. Passive driving circuit, 31. Antenna circuit, 32. Communication circuit, 33. Microprocessor, 34. Power supply circuit, 341. Matching circuit, 342. Rectifier circuit, 343. Energy storage circuit, 344. Current speed conversion circuit;

[0038] 20. Base, 201. Power terminal, 202. Housing;

[0039] 30. Positioning structure, 301. Positioning portion, 302. Matching portion;

[0040] 401, card convex, 402, card slot. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only 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 those skilled in the art without creative work are within the scope of protection of the present application.

[0042] The present invention provides a passive photo frame and a photo frame assembly. Figure 1 This is a schematic diagram of the structure of the passive photo frame provided in an embodiment of the present application. Figure 2 This is a schematic diagram of the structure of the photo frame assembly provided in an embodiment of the present application. Figure 3 for Figure 2 The structure diagram of the photo frame assembly shown is that the frame body and the base are at a first angle. Figure 4 for Figure 2 The photo frame assembly shown is a structural diagram of the frame body and the base being at a second angle. Figure 5 for Figure 2 An exploded schematic diagram of the picture frame assembly is shown. Figure 6 This is one of the structural diagrams of the passive driving circuit provided in the embodiment of the present application. Figure 7 This is the second schematic diagram of the passive driving circuit provided in the embodiment of the present application. Figure 1 、 Figure 3 and Figure 6 The passive photo frame 10 includes a frame 1, a display unit 2, and a passive driving circuit 3. The display unit 2 is mounted on the frame 1 and is used to display images. The resolution of the display unit 2 is greater than or equal to 180 dpi and / or the resolution of the display unit 2 is greater than or equal to 1600*960. The passive driving circuit 3 is provided on the frame 1 and is used to drive the display unit 2 to display images.

[0043] The passive photo frame 10 of the embodiment of the present application mainly consists of three parts: a frame 1, a display unit 2, and a passive drive circuit 3. The display unit 2 is mounted on the frame 1. When the resolution of the display unit 2 is greater than or equal to 180 dpi, it is ensured that the display unit 2 can present a high-quality image. When the resolution of the display unit 2 is greater than or equal to 1600*960, it is ensured that the display unit 2 can present a high-quality image. The passive drive circuit 3 is arranged on the frame 1 and is used to drive the display unit 2 to display an image. The passive drive circuit 3 directly obtains power from an external device, eliminating the need for a battery. This makes the passive photo frame 10 thinner, which not only improves the aesthetics of the passive photo frame 10, but also reduces the space required for placing the passive photo frame 10.

[0044] It should be noted that the resolution of the display unit 2 is greater than or equal to 180dpi, which means that the resolution performance of the display unit 2 reaches or exceeds the standard of 180 pixels per inch. The DPI (Dots Per Inch) here is a unit of measurement for resolution, which is used to describe the number of pixels that an image or display screen has in length and width, that is, the number of points sampled, displayed or output per inch of length. Specifically, resolution is an important indicator to measure the fineness of an image or display screen. When the resolution is higher, it means that at the same size, the image or screen can display more pixels, thereby presenting a more delicate and clear picture. Therefore, the resolution of the display unit 2 is greater than or equal to 180dpi, which means that the display unit 2 has a certain degree of clarity and fineness in display effect, and can better present image or text content.

[0045] The resolution of the display unit 2 is greater than or equal to 1600*960, which means that the resolution performance of the display unit 2 reaches or exceeds the standard of 1600 horizontal pixels and 960 vertical pixels. The resolution here is expressed by the number of pixels in the horizontal and vertical directions, that is, there are 1600 pixels in the width of the screen and 960 pixels in the height. Specifically, this way of expressing the resolution directly gives the number of pixels in the length and width of the screen, so that the display capability of the screen can be described more specifically. When the resolution is higher, it means that the screen can display more pixels, thereby being able to present more delicate and clear images or text content.

[0046] In one embodiment, the display unit 2 includes electronic paper and / or an e-ink screen. The electronic paper and / or e-ink screen displays content by reflecting ambient light, eliminating glare and flicker, providing a comfortable reading experience for the viewer. Electronic paper and / or e-ink screens do not emit harmful light such as blue light, minimizing eye irritation and preventing eye fatigue and vision loss caused by long-term viewing. Electronic paper and / or e-ink screens consume almost no power when displaying static content, requiring only a small amount of power to refresh or change images. This significantly reduces the energy consumption of the passive photo frame 10. Due to their low power consumption, passive photo frames 10 equipped with electronic paper and / or e-ink screens typically have a long battery life and can be used for weeks or even months without frequent charging. Electronic paper and / or e-ink screens are typically ultra-thin and lightweight, which, to a certain extent, allows the display unit 2 to be thinner, improving the aesthetics of the passive photo frame 10 while reducing the space required for its placement.

[0047] In one embodiment, the frame 1 is provided with a wireless communication interface. This wireless communication interface eliminates the need for physical cables to connect the passive photo frame 10 to external devices, thereby avoiding tedious wiring work and making the passive photo frame 10 more mobile. The wireless communication interface generally supports plug-and-play functionality. The user only needs to turn on the external device and configure the corresponding wireless connection parameters to quickly connect and communicate with the passive photo frame 10. The wireless communication interface allows the connection between the frame 1 and the external device to be unrestricted by geographical location. As long as it is within the coverage area of ​​wireless communication, stable communication can be achieved. The wireless communication interface avoids the procurement, installation, and maintenance costs of physical cables, while reducing downtime and repair costs caused by cable failures. The wireless communication interface makes device connection and communication more efficient and convenient, thereby improving the operating efficiency and production benefits of the passive photo frame 10.

[0048] It should be noted that wireless communication interfaces include wireless LAN and / or Bluetooth. When wireless LAN, or Wi-Fi, is used, Wi-Fi typically offers high data transfer rates, meeting the needs of high-speed data transmission, such as the rapid transfer of high-definition video and large files. Wi-Fi also has a relatively wide coverage area and provides stable wireless connectivity within its coverage area. When Bluetooth is used, it offers low energy consumption. Bluetooth is suitable for short-range wireless communications and is ideal for close-range data transmission and synchronization between devices. The pairing and connection process for Bluetooth devices is relatively simple, requiring no specialized knowledge, improving the user experience. Bluetooth supports simultaneous connection of multiple devices, facilitating data transfer and sharing between devices. Combining wireless LAN and Bluetooth provides more flexible and diverse wireless connection options to meet the needs of diverse scenarios. Furthermore, when using both wireless LAN and Bluetooth, they complement each other in terms of coverage, data transfer rate, and power consumption, leveraging their respective strengths. Combining wireless LAN and Bluetooth provides more convenient and efficient wireless connection services, thereby enhancing the overall user experience.

[0049] Reference Figures 2 to 5 Secondly, embodiments of the present application provide a photo frame assembly 100, comprising the passive photo frame 10 described above and a base 20. The base 20 is capable of powering the passive photo frame 10, allowing the passive photo frame 10 to update its displayed content. This generally results in a simpler design for the passive photo frame 10, eliminating the need for internal batteries and enhancing its overall appearance. Because the base 20 can power the passive photo frame 10, users do not need to frequently replace batteries, saving time and costs. Power from the base 20 enables the passive photo frame 10 to receive and update displayed content, such as photos and messages, enhancing its practicality.

[0050] It should be noted that the passive photo frame 10 may be designed to support display content in multiple formats and types, such as image formats such as JPEG and PNG, as well as dynamic information display.

[0051] There are many ways to enable the base 20 to power the passive photo frame 10. For example, in one embodiment, the base 20 is provided with a power connection terminal 201, which is used to connect to the mains. This ensures that the base 20 receives a stable and continuous power supply, enabling the base 20 to continuously and stably power the passive photo frame 10. Since the mains is the primary source of electricity, its power supply network is relatively complete and the risk of power outages is low. Therefore, connecting to the mains through the power connection terminal 201 of the base 20 can effectively reduce the risk of the base 20 interrupting power supply to the photo frame assembly 100 due to a power outage. In addition, the mains power system is usually equipped with comprehensive safety protection measures, such as grounding protection and overload protection. By connecting to the mains through the power connection terminal 201 of the base 20, the photo frame assembly 100 can enjoy these safety protections, thereby reducing the risk of electrical accidents.

[0052] It should be noted that the design of the power connection terminal 201 on the base 20 generally complies with standardized electrical interface specifications, so that the power connection terminal 201 on the base 20 is universal and easy to operate when connected to the mains.

[0053] There are multiple ways in which the base 20 can power the passive photo frame 10. In one embodiment, the base 20 includes a housing 202 and a battery, and the battery is installed in the housing 202. In this way, the battery and the base 20 are integrated together, which can simplify the battery management process. That is, the user can conveniently control the switch and status of the battery through the interface or switch on the base 20, thereby realizing powering the passive photo frame 10 with the battery.

[0054] In one embodiment, the base 20 includes a transmitting antenna capable of emitting radio frequency signals.

[0055] It's important to note that transmitting antennas can emit radio frequency signals. Radio frequency signals are electromagnetic waves that propagate through space. Transmitting antennas operate based on the principle of electromagnetic radiation: when alternating current flows through the transmitting antenna, electromagnetic radiation is generated.

[0056] Reference Figure 6The passive driving circuit 3 includes an antenna circuit 31, a communication circuit 32, a microprocessor 33 and a power supply circuit 34. The communication circuit 32 is connected to the antenna circuit 31, and the microprocessor 33 is connected to the communication circuit 32. The microprocessor 33 communicates wirelessly with the base 20 through the communication circuit 32 and the antenna circuit 31. The power supply circuit 34 is connected to the antenna circuit 31 to convert the radio frequency signal emitted by the base 20 into electrical energy through the antenna circuit 31. In this way, the antenna circuit 31 is a key part for receiving and converting radio frequency signals. When the radio frequency signal emitted by the base 20 arrives, the antenna circuit 31 captures these signals. The communication circuit 32 is connected to the antenna circuit 31 and is responsible for processing the radio frequency signals received by the antenna circuit 31. These signals are converted into digital or analog signals for further processing by the microprocessor 33. The microprocessor 33 is the core of the passive driving circuit 3. The microprocessor 33 communicates with the antenna circuit 31 through the communication circuit 32, and receives and processes the information in the radio frequency signal. The power supply circuit 34 is connected to the antenna circuit 31 , and uses the radio frequency signal received by the antenna circuit 31 to convert it into electrical energy through circuit processing such as rectification and filtering, so that the power supply circuit 34 can power the display unit 2 .

[0057] Because the photo frame assembly 100 transmits radio frequency signals through the base 20, the passive drive circuit 3 is able to capture and convert these signals into electrical energy, achieving wireless energy transmission, reducing the need for cables and power outlets, and improving the flexibility and convenience of the photo frame assembly 100. The microprocessor 33 in the passive drive circuit 3 is able to process the information contained in the radio frequency signals received from the base 20, enabling wireless data transmission and processing, and enhancing the automation and intelligence level of the photo frame assembly 100. Because the passive drive circuit 3 utilizes radio frequency signals for power supply and communication, it reduces the need for traditional cables and power supplies, reducing energy consumption and environmental pollution. Furthermore, this technology reduces the frequency of battery replacement and maintenance, further reducing the cost and environmental impact of the photo frame assembly 100.

[0058] Reference Figure 7 In some embodiments, the power supply circuit 34 includes a matching circuit 341, a rectifier circuit 342, and an energy storage circuit 343 connected in sequence. The matching circuit 341 and the antenna circuit 31 can cooperate to better obtain the radio frequency signal of the external device. The rectifier circuit 342 can rectify the first electric energy output by the matching circuit 341 to facilitate the energy storage circuit 343 to store electric energy.

[0059] It should be noted that, in other embodiments, the power supply circuit 34 further includes a current speed-changing circuit 344, which is disposed between the rectifier circuit 342 and the energy storage circuit 343. The current speed-changing circuit 344 is capable of changing the current transmitted to the energy storage circuit 343. The current speed-changing circuit 344 can provide a variety of charging currents, thereby providing a variety of charging circuits for charging the energy storage circuit 343 to meet different needs.

[0060] For example, the current speed-varying circuit 344 can process the electric energy provided by the rectifier circuit 342 to provide a first charging current or a second charging current, where the first charging current is less than the second charging current. This can also be understood as the first charging current being a slow charge for the energy storage circuit 343, and the second charging current being a fast charge for the energy storage circuit 343. For another example, the current speed-varying circuit 344 can provide three or more different charging currents to suit different usage scenarios.

[0061] Reference Figures 3 to 5 In one embodiment, a positioning structure 30 is further provided between the base 20 and the frame 1. The positioning structure 30 includes a positioning portion 301 and a matching portion 302 adapted to the positioning portion 301. One of the positioning portion 301 and the matching portion 302 is provided on the base 20, and the other is provided on the frame 1. In this way, the positioning portion 301 and the matching portion 302 cooperate with each other to ensure accurate positioning between the base 20 and the frame 1, which can effectively prevent the base 20 and the frame 1 from being misaligned or offset during the connection process, thereby improving the connection accuracy of the photo frame assembly 100.

[0062] It should be noted that there are various types of positioning portion 301 and mating portion 302. For example, in one embodiment, positioning portion 301 includes a positioning groove, and mating portion 302 includes a positioning protrusion. By cooperating and installing positioning portion 301 and positioning protrusion, the base 20 and frame 1 can be positioned and installed. Since the cooperating installation process of positioning groove and positioning protrusion is relatively simple, the operator only needs to align the positioning protrusion with the positioning groove and insert it, which reduces the difficulty of positioning and assembly. The cooperating installation design of positioning groove and positioning protrusion makes the connection between base 20 and frame 1 easy to disassemble.

[0063] Reference Figures 3 to 5In one embodiment, the frame 1 includes a frame body 11 and a rotating connection structure 12. The frame body 11 is used to mount the display unit 2. The rotating connection structure 12 is rotatably connected between the frame body 11 and the base 20 so that the angle between the frame body 11 and the base 20 is adjustable. The rotating connection structure 12 is provided with a mating portion 302. In this way, the rotating connection structure 12 allows the angle between the frame body 11 and the base 20 to be adjusted. The adjustable angle design improves user comfort. For example, by adjusting the angle between the frame body 1 and the base 20, it is easier for the user to view the image displayed on the display unit 2. In addition, by adjusting the angle between the frame body 1 and the base 20, the angle of the display screen can be made more consistent with the user's viewing habits, reducing eye fatigue and discomfort.

[0064] Reference Figure 3 and Figure 5 In one embodiment, the rotating connection structure 12 includes a plurality of connecting rods 121, which are hingedly connected end to end. The plurality of connecting rods 121 include two first connecting rods 1211 located at the edge, one of which is connected to the frame body 11, and the other of which is connected to the base 20. The other of the two first connecting rods 1211 is provided with a mating portion 302. In this manner, the plurality of connecting rods 121 are hingedly connected end to end, forming a flexible and stable structure. This design enables the plurality of connecting rods 121 to move relative to each other under the action of external forces, thereby adjusting the angle between the frame body 11 and the base 20. Due to the hinged design of the connecting rods 121, the angle between the frame body 11 and the base 20 can be flexibly adjusted, meeting the angle requirements of the frame body 1 in different application scenarios and improving the versatility and practicality of the photo frame assembly 100. The mating portion 302 provided on the other of the two first connecting rods 1211 can be positioned and mated with the positioning portion 301 provided on the base 20, thereby ensuring the fixed installation between the rotating connection structure 12 and the base 20. The rotating connection structure 12 formed by the hinged connection of multiple connecting rods 121 has high stability and load-bearing capacity. This design ensures that the frame body 11 remains stable when subjected to external forces, reducing the risk of damage. The design of the connecting rods 121 and the hinged portion makes the rotating connection structure 12 easy to disassemble and reinstall, which facilitates maintenance and upgrades of the photo frame assembly 100, reducing maintenance costs and time.

[0065] It should be noted that in other embodiments, the rotating connection structure 12 includes a first connecting segment, a second connecting segment, and a deformable portion connecting the first and second connecting segments. The deformable portion is capable of deforming to change the angle between the first and second connecting segments. The first connecting segment is connected to the frame body 11, and the second connecting segment is connected to the base 20. The second connecting segment is provided with a mating portion 302. The presence of the deformable portion allows for flexible adjustment of the angle between the first and second connecting segments. This design allows the relative position between the frame body 11 and the base 20 to be varied, thereby adapting to different usage scenarios and requirements. Users can adjust the angle to change the tilt angle or direction of the frame body 11 according to actual needs, thereby enhancing the flexibility and adaptability of the photo frame assembly 100. The first and second connecting segments are connected by the deformable portion, forming a stable and reliable structure. The design of the deformable portion makes the angle adjustment process controllable and smooth, preventing damage to the rotating connection structure 12 caused by sudden changes or impacts.

[0066] It should be noted that there are many types of deformation parts, for example, the deformation part may include metal, rubber or plastic, etc. Specifically, this application does not limit this.

[0067] Reference Figure 5 In one embodiment, one of the two first connecting rods 1211 is detachably connected to the frame body 11. This detachable connection design makes installation and removal between the frame body 11 and the first connecting rod 1211 very simple and quick. Users can easily connect or disconnect them without using complex tools or performing tedious operations. If the frame body 11 or the first connecting rod 1211 malfunctions or requires maintenance, the detachable connection design allows the user to easily separate them for convenient repair or replacement. This reduces maintenance costs and time, and improves the reliability and service life of the device.

[0068] It should be noted that there are various ways to achieve a detachable connection between one of the two first connecting rods 1211 and the frame body 11. For example, in one embodiment, one of the two first connecting rods 1211 and the frame body 11 is connected via a snap-fit ​​structure, which includes a snap-fit ​​protrusion 401 and a snap-fit ​​groove 402 adapted to the snap-fit ​​protrusion 401. One of the snap-fit ​​protrusion 401 and the snap-fit ​​groove 402 is provided on the frame body 11, and the other is provided on one of the two first connecting rods 1211. The snap-fit ​​protrusion 401 and the snap-fit ​​groove 402 are installed in conjunction with each other, thereby achieving a detachable connection between one of the two first connecting rods 1211 and the frame body 11, which has a simple structure and is easy to operate. In other embodiments, one of the two first connecting rods 1211 and the frame body 11 can also be fixed to the frame body 11 by magnetic attraction or by screwing with a screw connection. Specifically, this application is not limited to this.

[0069] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0070] The passive photo frame and photo frame assembly provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only intended to help understand the method and core concept of the present application. At the same time, for those skilled in the art, based on the concept of the present application, there may be changes in the specific implementation methods and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A passive photo frame, characterized in that: include: frame; A display unit installed in the frame, the display unit is used to display images, and the resolution of the display unit is greater than or equal to 180dpi; and / or the resolution of the display portion is greater than or equal to 1600*960; The passive driving circuit is provided in the frame body and is used for driving the display unit to display an image.

2. The passive photo frame according to claim 1, characterized in that: The display unit includes electronic paper and / or ink screen; and / or, The frame is provided with a wireless communication interface, and the wireless communication interface is used for wireless communication with external equipment.

3. The passive photo frame according to claim 2, characterized in that: The wireless communication interface includes wireless LAN and / or Bluetooth.

4. A photo frame assembly, characterized in that: include: The passive photo frame according to any one of claims 1 to 3; A base is provided, wherein the base can supply power to the passive photo frame so that the passive photo frame updates display content.

5. The photo frame assembly according to claim 4, characterized in that: The base is provided with a power connection terminal, and the power connection terminal is used to connect to the mains power; and / or, The base includes a shell and a battery, and the battery is installed in the shell.

6. The photo frame assembly according to claim 5, wherein: The base includes a transmitting antenna, and the transmitting antenna is capable of emitting a radio frequency signal; The passive driving circuit includes an antenna circuit, a communication circuit, a microprocessor and a power supply circuit. The communication circuit is connected to the antenna circuit, the microprocessor is connected to the communication circuit, and wirelessly communicates with the base through the communication circuit and the antenna circuit. The power supply circuit is connected to the antenna circuit to convert the radio frequency signal emitted by the base into electrical energy through the antenna circuit.

7. The photo frame assembly according to any one of claims 4 to 6, characterized in that: A positioning structure is further provided between the base and the frame. The positioning structure includes a positioning portion and a matching portion adapted to the positioning portion. One of the positioning portion and the matching portion is provided on the base, and the other is provided on the frame.

8. The photo frame assembly according to claim 7, wherein: The frame includes: A frame body for mounting the display unit; A rotating connection structure is rotatably connected between the frame body and the base so that the angle between the frame body and the base is adjustable, wherein the rotating connection structure is provided with the matching portion.

9. The photo frame assembly according to claim 8, wherein: The rotating connection structure includes multiple connecting rods, and the head and tail of the multiple connecting rods are hinged in sequence. The multiple connecting rods include two first connecting rods at the edge, one of the two first connecting rods is connected to the frame body, and the other of the two first connecting rods is connected to the base, and the other of the two first connecting rods is provided with the matching part.

10. The photo frame assembly according to claim 9, wherein: One of the two first connecting rods is detachably connected to the frame body.

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