Low-power-consumption electronic paper mobile phone shell

Abstract

The invention discloses a low-power-consumption electronic paper mobile phone shell. The mobile phone shell comprises a groove formed in a shell body, a mobile phone support with a built-in wireless charging coil and a display assembly. The display assembly comprises a driving PCB and an electronic paper module, and the electronic paper module is connected with the driving PCB; the mobile phone support comprises a base and a supporting ring connected with the base, and a wireless charging coil is arranged in the base. The base is embedded in the groove, and the electronic paper module is clamped between the groove and the base, so that the electronic paper module is exposed outside through the opening; a wireless charging coil in the mobile phone support is used for establishing wireless power supply connection with an external power supply and supplying power to the driving PCB; and the driving PCB is used for receiving a to-be-displayed pattern sent by a user, determining the voltage of each driving pin according to the to-be-displayed pattern, and then driving the electronic paper module to display the to-be-displayed pattern according to the voltage of the driving pin. The problem that a mobile phone shell with a screen is thick and heavy and is charged frequently can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone cases, and particularly to a low-power e-paper mobile phone case. Background Art

[0002] With the popularization of smart devices, users' personalized needs for mobile phone accessories are becoming increasingly strong. As one of the additional functions of smart phones, mobile phone cases with screens can not only provide appearance customization, but also display dynamic content, such as notifications, advertisements, personalized patterns, etc. This function makes the mobile phone case not only a tool for protecting the device, but also an intelligent interactive device.

[0003] However, current mobile phone cases with screens generally rely on built-in button batteries or micro lithium batteries for power supply, resulting in an increase in the thickness and weight of the mobile phone case, significantly affecting the user's holding experience. At the same time, due to the limitation of the battery capacity, such mobile phone cases often cannot meet the user's long-term use requirements, and users have to frequently remove the mobile phone case for charging or battery replacement. Summary of the Invention

[0004] An embodiment of the present invention provides a low-power e-paper mobile phone case. The present invention can avoid the problems of heavy weight and frequent charging of mobile phone cases with screens.

[0005] An embodiment of the present invention provides a low-power e-paper mobile phone case, including: a groove provided on the housing, a mobile phone holder with an internal wireless charging coil, and a display component; the display component includes: a driving PCB board and an e-paper module, and the e-paper module is connected to the driving PCB board; the mobile phone holder includes: a base and a support ring connected to the base, a wireless charging coil is provided inside the base, and an opening is provided on the base; the wireless charging coil is connected to the driving PCB board;

[0006] The base is embedded in the groove, and the e-paper module is clamped between the groove and the base, so that the e-paper module is exposed through the opening;

[0007] The wireless charging coil in the mobile phone holder is used to establish a wireless power supply connection with an external power supply and supply power to the driving PCB board;

[0008] The driving PCB board is used to receive a pattern to be displayed sent by the user, determine the voltage of each driving pin according to the to-be-displayed image, and then drive the e-paper module to display the to-be-displayed pattern according to the voltage of the driving pin.

[0009] Further, the driving PCB board includes a power supply voltage stabilizing unit, a Bluetooth chip, and a segment code driving chip;

[0010] The power supply and voltage stabilization unit is configured to convert the electrical energy received from the wireless charging coil and output a preset operating voltage.

[0011] The Bluetooth chip is used to receive the pattern to be displayed sent by the user.

[0012] The segment code driver chip is used to determine the voltages of the respective driving pins, and then drive the electronic paper module to display the pattern to be displayed according to the voltages of the driving pins.

[0013] Further, an arc-shaped groove is provided on the inner side of the support ring, and a magnet is provided in the groove.

[0014] Further, the electronic paper module includes an FPC backplane, an electronic paper diaphragm, and a PS protective film.

[0015] The surface of the FPC backplane is printed with a segment code type electrode pattern.

[0016] The electronic paper diaphragm is disposed on the upper layer of the FPC backplane.

[0017] The PS protective film is disposed on the upper layer of the electronic paper diaphragm.

[0018] The FPC backplane is connected to the segment code driver chip.

[0019] The electronic paper diaphragm is connected to the FPC backplane.

[0020] Further, driving the electronic paper module to display the pattern to be displayed according to the voltages of the driving pins includes:

[0021] Generating a driving signal for driving the electronic paper module to display a pattern according to the voltages of the driving pins;

[0022] Transmitting the driving signal to the FPC backplane, so that after receiving the driving signal, the FPC backplane controls the electronic paper diaphragm to display the pattern to be displayed according to the driving signal.

[0023] Further, the Bluetooth chip is further configured to reduce the acquisition frequency of the Bluetooth chip when no pattern to be displayed sent by the user is acquired within a preset time period, until it detects that the wireless charging coil re-establishes a power supply connection with an external power supply or acquires a pattern to be displayed sent by the user, and then resumes the default acquisition frequency of the Bluetooth chip.

[0024] Further, the shape of the electronic paper diaphragm is circular; the segment code type electrode pattern is located directly below the electronic paper diaphragm.

[0025] Further, the base and the support ring are connected by a hinge rotating shaft.

[0026] Further, the groove includes a first groove with a circular shape and a second groove with an irregular shape; the e-paper module is clamped between the first groove and the base; the driving PCB board is embedded in the second groove.

[0027] Further, the low-power e-paper mobile phone case further includes an irregular protective layer provided on the upper layer of the driving PCB board.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The embodiment of the present invention provides a low-power e-paper mobile phone case, which includes a groove provided on the case, a mobile phone holder with a built-in wireless charging coil, and a display component. The display component includes a driving PCB board and an e-paper module connected thereto. The mobile phone holder consists of a base and a support ring. The base is built with a wireless charging coil and exposes the e-paper module through an opening. The wireless charging coil is used to establish a power supply connection with an external power supply (such as a mobile phone or a wireless charger that supports reverse wireless charging) and supply power to the driving PCB board. The driving PCB board receives the pattern to be displayed sent by the user and controls the e-paper module to display according to the pattern.

[0030] The e-paper mobile phone case proposed by the present invention abandons the design of an internal battery and uses a built-in wireless charging coil to establish a power supply connection with an external power supply (such as a mobile phone or a wireless charger that supports reverse wireless charging). It only obtains electrical energy from the external power supply when the e-paper module needs to update the pattern and supplies power to the driving PCB board. After receiving the pattern to be displayed sent by the user, the driving PCB board transmits the pattern to the e-paper module for display. Thanks to the characteristic that the e-paper module does not require a continuous power supply when displaying the pattern, the displayed pattern can remain unchanged even in the absence of an external power supply. In this way, the present invention avoids the problems of heaviness, frequent charging, and battery replacement brought by traditional internal batteries, and significantly improves the user experience. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of a low-power e-paper mobile phone case provided by an embodiment of the present invention.

[0032] Figure 2 is a schematic structural diagram of a driving PCB board provided by an embodiment of the present invention.

[0033] Figure 3 is a schematic diagram of a segment code electrode pattern provided by an embodiment of the present invention.

[0034] Figure 4 is a schematic external view of a low-power e-paper mobile phone case provided by an embodiment of the present invention.

[0035] Description of the Reference Numerals:

[0036] 1. Housing; 2. Groove; 3. Mobile phone holder; 4. Display component; 5. Protective layer; 21. First groove; 22. Second groove; 31. Base; 32. Support ring; 41. Electronic paper module; 42. Driving PCB board; 421. Power supply voltage stabilizing unit; 422. Segment code driving chip; 423. Bluetooth chip. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0038] As Figure 1 shown, an embodiment of the present invention provides a low-power electronic paper mobile phone case, which at least includes: a groove provided on the housing 1, a mobile phone holder 3 with a built-in wireless charging coil, and a display component 4; the display component 4 includes: a driving PCB board 42 and an electronic paper module 41, and the electronic paper module 41 is connected to the driving PCB board 42; the mobile phone holder 3 includes: a base 31 and a support ring 32 connected to the base 31, a wireless charging coil is provided in the base 31, and the base 31 is provided with an opening; the wireless charging coil is connected to the driving PCB board 42;

[0039] The base 31 is embedded in the groove 2, and the electronic paper module 41 is clamped between the groove 2 and the base 31, so that the electronic paper module 41 is exposed through the opening;

[0040] The wireless charging coil in the mobile phone holder 3 is used to establish a wireless power supply connection with an external power supply and supply power to the driving PCB board 42; wherein, the external power supply can be a mobile phone or a wireless charger that supports reverse wireless charging;

[0041] The driving PCB board 42 is used to receive a pattern to be displayed sent by the user, determine the voltage of each driving pin according to the to-be-displayed image, and then drive the electronic paper module 41 to display the to-be-displayed pattern according to the voltage of the driving pin.

[0042] It should be noted here that wireless charging is a technology that provides power to a device without physical connection (such as a charging cable). Its principle is based on electromagnetic induction or electromagnetic resonance, and energy is transmitted through the action of an electromagnetic field. The following are the basic principles, working methods and related technical details of wireless charging.

[0043] The core principle of wireless charging is electromagnetic induction. This is a process of transmitting energy through an electromagnetic field generated by an alternating current. A wireless charging system generally consists of two parts: a transmitting end (charger) and a receiving end (such as a mobile phone or a mobile phone holder with a built-in wireless charging coil as described in the present invention).

[0044] Inside the transmitting end, there is a coil through which current is transmitted. When the transmitting end is powered on, the current will flow through the coil of the transmitting end, thus generating an alternating magnetic field. This alternating magnetic field will propagate in the surrounding space (also called an alternating electromagnetic field).

[0045] There is also a coil inside the receiving end. When the receiving end approaches the transmitting end, the alternating magnetic field of the transmitting end will pass through the coil of the receiving end. According to Faraday's law of electromagnetic induction, the alternating magnetic field will induce a current (called an induced current) in the coil of the receiving end. This induced current is then converted into direct current for the device to draw power.

[0046] As Figure 2 shown, in a preferred embodiment, the driving PCB board 42 includes a power supply voltage stabilizing unit 421, a Bluetooth chip 423, and a segment code driving chip 422;

[0047] The power supply voltage stabilizing unit 421 is used to convert the electrical energy received from the wireless charging coil and output a preset working voltage; specifically, the preset working voltage can be 3.3V.

[0048] The Bluetooth chip 423 is used to receive the pattern to be displayed sent by the user;

[0049] The segment code driving chip 422 is used to determine the voltage of each driving pin, and then drive the electronic paper module 41 to display the pattern to be displayed according to the voltage of the driving pin.

[0050] Specifically, the pattern to be displayed can be selected on the APP and transmitted to the Bluetooth chip 423 through Bluetooth communication.

[0051] In a preferred embodiment, an arc-shaped groove is provided on the inner side of the support ring 32, and a magnet is provided in the groove.

[0052] It should be noted here that the magnet is used to adsorb magnetic mobile phone accessories such as magnetic wireless chargers.

[0053] In a preferred embodiment, the electronic paper module 41 includes an FPC backplane, an electronic paper film, and a PS protective film;

[0054] The surface of the FPC backplane is printed with a segment code type electrode pattern;

[0055] The electronic paper film is disposed on the upper layer of the FPC backplane;

[0056] The PS protective film is disposed on the upper layer of the electronic paper film;

[0057] The FPC backplane is connected to the segment code driving chip 422;

[0058] The electronic paper film is connected to the FPC backplane.

[0059] Specifically, as Figure 3 shown, a segment code electrode pattern is printed on the surface of the FPC backplane for realizing the display function of the electronic paper. The segment code electrode pattern is arranged on the FPC backplane according to the required pattern and is connected to the segment code driving chip 422. By controlling the voltage, the electronic ink in the electronic paper film is adjusted to display different patterns or information. The electronic paper film is disposed on the upper layer of the FPC backplane, responsible for carrying the electronic ink particles and realizing the display of the pattern under the action of the electric field. Due to the characteristics of the electronic paper, the displayed pattern can be maintained without continuous power supply. Therefore, in the absence of an external power source, the pattern can be displayed stably for a long time. The PS protective film is disposed on the upper layer of the electronic paper film, playing a protective role to prevent the electronic paper film from being polluted or physically damaged by the external environment. At the same time, it can increase the clarity of the display effect and enhance the compressive resistance.

[0060] It should be noted here that the electronic paper film is composed of millions of microcup structures, and the microstructure size is approximately the diameter of a human hair. Each microcup contains four colored particles (yellow, white, red, blue) suspended in a transparent fluid, including positively charged red and blue particles, and negatively charged yellow and white particles. When a positive electric field or a negative electric field is applied, the corresponding particles will move to the top of the microcup to display the required colors and graphics.

[0061] In a preferred embodiment, driving the electronic paper module 41 to display a pattern to be displayed according to the voltage of the driving pin includes:

[0062] Generating a driving signal for driving the electronic paper module 41 to display a pattern according to the voltage of the driving pin;

[0063] Transmitting the driving signal to the FPC backplane so that after receiving the driving signal, the FPC backplane controls the electronic paper film to display the pattern to be displayed according to the driving signal.

[0064] Specifically, drive signals for driving the electronic paper module 41 to display a pattern are generated according to the voltage of the drive pins. These drive signals are generated by the segment code drive chip 422, and the drive signals are adjusted according to the voltage requirements of the pattern to be displayed, so as to control the change of the electrode pattern on the FPC backplane. The voltage of each drive pin corresponds to a specific display area or color block. Through precise voltage control, the drive signals activate the electronic ink particles in the electronic paper diaphragm to ensure the accurate display of the pattern.

[0065] Then, the drive signals are transmitted to the FPC backplane, so that after receiving the drive signals, the FPC backplane controls the electronic paper diaphragm to display the pattern to be displayed according to the drive signals. The electrode pattern on the FPC backplane changes according to the received drive signals, generating an electric field acting on the electronic ink particles in the electronic paper diaphragm, prompting these particles to move or flip, thereby realizing the display of the pattern. In this way, the electronic paper module can display various personalized patterns or information in real time and accurately according to user needs.

[0066] In a preferred embodiment, the Bluetooth chip 423 is further configured to reduce the acquisition frequency of the Bluetooth chip 423 when the pattern to be displayed sent by the user is not acquired within a preset time period, until it is detected that the wireless charging coil re - establishes a power supply connection with an external power supply or the pattern to be displayed sent by the user is acquired, and then the default acquisition frequency of the Bluetooth chip 423 is restored.

[0067] In a preferred embodiment, the shape of the electronic paper diaphragm is circular; the segment code type electrode pattern is located directly below the electronic paper diaphragm.

[0068] Generally, the shape of the electronic paper diaphragm is consistent with the shape of the segment code type electrode pattern. The shape is not limited to a circle and can also be other geometric shapes.

[0069] In a preferred embodiment, the base 31 and the support ring 32 are connected by a hinge rotating shaft.

[0070] Specifically, the hinge rotating shaft is just an example, and the base 31 and the support ring 32 can also be connected by other connecting parts.

[0071] In a preferred embodiment, the groove 2 includes a first groove 21 with a circular shape and a second groove 22 with an irregular shape; the electronic paper module 41 is clamped between the first groove 21 and the base 31; the drive PCB board 42 is embedded in the second groove 22.

[0072] As Figure 1 shown, in a preferred embodiment, the low - power electronic paper mobile phone case further includes: a protective layer 5 provided on the upper layer of the drive PCB board 42. Among them, the shape of the protective layer can be irregular.

[0073] Specifically, the protective layer 5 is mainly used to protect the driving PCB board 42 and the electronic components on its upper layer from physical damage in the external environment, such as scratching, impact or compression, etc., and extend the service life of the device. The protective layer 5 is designed with an irregular shape, which not only enhances the compressive and impact resistance of the structure, but also can effectively disperse external forces and reduce the direct impact on the electronic components.

[0074] In addition, the material selection of the irregular protective layer 5 has excellent wear resistance and high temperature resistance, and can provide stable protection in different working environments. At the same time, the design of the protective layer 5 takes into account the balance between the aesthetics and functionality of the mobile phone case, and uses transparent or semi-transparent materials, so that it can not only protect the driving PCB board 42, but also does not affect the overall appearance and display effect. The unique design of the protective layer 5 also considers the heat dissipation problem, ensuring that the electronic components can effectively dissipate heat during high-load operation, and avoiding performance degradation or hardware damage caused by overheating.

[0075] The design of this irregular protective layer provides additional physical protection for the low-power e-paper mobile phone case, ensuring that in actual use, the e-paper module, the driving PCB board and other electronic components can operate stably and reliably, thus improving the durability of the device and the user experience.

[0076] In a preferred embodiment, the appearance of the low-power e-paper mobile phone case is as Figure 4 shown.

[0077] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0078] The above is the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and retouches can still be made, and these improvements and retouches are also regarded as the protection scope of the present invention.

Claims

1. A low-power electronic paper mobile phone case, characterized in that: include: A groove provided on the housing, a mobile phone holder with a built-in wireless charging coil, and a display assembly; The display assembly includes: a driving PCB board and an electronic paper module, wherein the electronic paper module is connected to the driving PCB board; the mobile phone holder includes: a base and a support ring connected to the base, wherein a wireless charging coil is arranged in the base, and the base is provided with an opening; the wireless charging coil is connected to the driving PCB board; The base is embedded in the groove, and the electronic paper module is clamped between the groove and the base, so that the electronic paper module is exposed to the outside through the opening; The wireless charging coil in the mobile phone holder is used to establish a wireless power supply connection with an external power supply and to supply power to the driving PCB board; The driving PCB board is used to receive the pattern to be displayed sent by the user, determine the voltage of each driving pin according to the image to be displayed, and then drive the electronic paper module to display the pattern to be displayed according to the voltage of the driving pin.

2. The low-power electronic paper mobile phone case according to claim 1, characterized in that: The driving PCB board includes a power supply voltage stabilization unit, a Bluetooth chip and a segment code driving chip; The power supply stabilizing unit is used to convert the electric energy received from the wireless charging coil and output a preset working voltage; The Bluetooth chip is used to receive the pattern to be displayed sent by the user; The segment code driving chip is used to determine the voltage of each driving pin, and then drive the electronic paper module to display the pattern to be displayed according to the voltage of the driving pin.

3. The low-power electronic paper mobile phone case according to claim 2, characterized in that: An arc-shaped groove is arranged on the inner side of the support ring, and a magnet is arranged in the groove.

4. The low-power electronic paper mobile phone case according to claim 3, characterized in that: The electronic paper module includes an FPC back panel, an electronic paper film and a PS protective film; The surface of the FPC backplane is printed with a segment code electrode pattern; The electronic paper film is arranged on the upper layer of the FPC back plate; The PS protective film is arranged on the upper layer of the electronic paper film; The FPC backplane is connected to the segment code driver chip; The electronic paper film is connected to the FPC back plate.

5. The low-power electronic paper mobile phone case according to claim 4, characterized in that: The method of driving the electronic paper module to display a pattern to be displayed according to the voltage of the driving pin comprises: Generate a driving signal for driving the electronic paper module to display a pattern according to the voltage of the driving pin; The driving signal is transmitted to the FPC back plate, so that after receiving the driving signal, the FPC back plate controls the electronic paper film to display the pattern to be displayed according to the driving signal.

6. The low-power electronic paper mobile phone case according to claim 5, characterized in that: The Bluetooth chip is also used to reduce the acquisition frequency of the Bluetooth chip when the pattern to be displayed sent by the user is not obtained within a preset time period, until it is detected that the wireless charging coil re-establishes a power supply connection with the external power supply or the pattern to be displayed sent by the user is obtained, and then the default acquisition frequency of the Bluetooth chip is restored.

7. The low-power electronic paper mobile phone case according to claim 6, characterized in that: The electronic paper membrane is circular in shape; the segment code electrode pattern is located directly below the electronic paper membrane.

8. The low-power electronic paper mobile phone case according to claim 7, characterized in that: The base is connected to the support ring via a hinge shaft.

9. The low-power electronic paper mobile phone case according to claim 8, characterized in that: The groove includes a first groove with a circular shape and a second groove with an irregular shape; the electronic paper module is clamped between the first groove and the base; and the driving PCB board is embedded in the second groove.

10. The low-power electronic paper mobile phone case according to claim 9, characterized in that: Also includes: An irregular protective layer is set on the upper layer of the driver PCB.

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