Mobile phone case with NFC-based e-ink display

Abstract

To provide a mobile phone case with an NFC-based electronic ink display, the design of which greatly improves the compatibility of mobile phones with different models and sizes, and reduces molds and manufacturing process changes required for different mobile phone designs, thereby reducing the manufacturing and adaptation costs.SOLUTION: A mobile phone case includes a protective case, an NFC antenna, and an electronic ink display. The protective case is provided with a receiving cavity for placing a mobile phone, and a connection assembly is provided between the electronic ink display and the NFC antenna. The connection assembly is used to electrically connect the NFC antenna to the electronic ink display or to cut off the electrical connection between the NFC antenna and the electronic ink display. By providing the connection assembly, the NFC antenna and the electronic ink display on the protective case can be separated, whereby different NFC antennas can be combined with electronic ink displays through the same connection assembly, and NFC antennas having various shapes and parameters can be fitted to electronic ink displays through the standardized connection assembly.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to the technical field of mobile phone cases, and particularly to a mobile phone case with an electronic ink display based on NFC.

Background Art

[0002] A mobile phone case is an accessory that protects and decorates the appearance of a mobile phone. An electronic ink display is an innovative new method and technology related to information display. On the same side as most conventional inks, the electronic ink and the lines where its color changes are printed on the surfaces of many materials such as curved plastics, polyester films, paper, and cloth. On a different side from conventional paper, the color of the electronic ink changes in an energized state, and in addition, it can display changing images like a conventional display.

[0003] Existing mobile phone cases with electronic ink displays usually need to be charged after a certain period of use by means of separate power supply, and there is no deformation to a certain extent during use. Due to the charging structure of the mobile phone case, the thickness and weight of the mobile phone case increase simultaneously. Even though the main purpose of the mobile phone case is to protect the mobile phone, the increase in thickness and weight makes it inconvenient to carry and use, and also affects the aesthetics.

Summary of the Invention

Problems to be Solved by the Invention

[0004] In view of the defects and deficiencies of the prior art, the present invention aims to reduce the weight and thickness of the protective case, make the separation between the NFC antenna and the electronic ink display on the protective case suitable through connection components, and different NFC antennas are combined with the electronic ink display through connection components, and to propose a mobile phone case with an electronic ink display based on NFC to achieve the advantage of compatibility of the mobile phone case with an NFC electronic ink display for different models of mobile phones.

Means for Solving the Problems

[0005] To achieve this object, the present invention adopts the following technical solutions.

[0006] A mobile phone case with an electronic ink display based on NFC has a protective case, and the protective case is a mobile phone case with an electronic ink display based on NFC provided with a receiving cavity for placing a mobile phone, and further includes an NFC antenna and an electronic ink display disposed on the back surface of the protective case. A connection assembly is provided between the electronic ink display and the NFC antenna, and the connection assembly is used to electrically connect the NFC antenna to the electronic ink display or to cut off the electrical connection between the NFC antenna and the electronic ink display.

[0007] Preferably, the mobile phone case with an electronic ink display based on NFC further includes a mounting plate disposed on the back surface of the protective case, and a mounting groove for mounting the NFC antenna and the electronic ink display is provided at the upper end of the mounting plate, and the edge of the NFC antenna is tightly adjacent to the edge of the protective case so as to increase the overlapping area by projection between the NFC antenna and the NFC antenna of the mobile phone.

[0008] Preferably, the upper edge of the mounting groove extends to the frame at the upper end of the protective case, and the upper edge of the mounting groove is located higher than the upper inner wall of the upper end of the protective case, so as to increase the overlapping area by projection between the NFC antenna and the NFC antenna of the mobile phone.

[0009] Preferably, the distance between the edge of the mounting groove approaching the side wall of the protective case and the edge of the protective case is set to be less than 5 mm, so as to increase the overlapping area by projection between the NFC antenna and the NFC antenna of the mobile phone.

[0010] Preferably, the mobile phone case with the NFC-based electronic ink display further includes an NFC cover plate, and the NFC cover plate covers the NFC antenna. When the NFC cover plate covers the NFC antenna, the NFC cover plate is located in the same plane as the upper surface of the mounting plate.

[0011] Preferably, at least one of the cross-sections of the upper and lower ends of the protective case is larger than the cross-sections on the left and right sides of the protective case.

[0012] Preferably, a rupture prevention protrusion is provided at the supporting corner of the protective case.

[0013] Preferably, a buffer material is provided in the mounting groove.

[0014] Preferably, buffer protrusions are provided at the edge of the protective case.

[0015] Preferably, a lens frame is attached to the back of the protective case, and the lens frame is connected by a holder and a hinge. When the protective case is placed horizontally, the holder expands to support the mobile phone case.

Advantages of the Invention

[0016] The present invention has the following beneficial effects compared with the prior art. The mobile phone case with an electronic ink display based on NFC comprises a protective case, an NFC antenna and an electronic ink display arranged on the back of the protective case. The protective case is provided with a receiving cavity for placing the mobile phone. A connection assembly is provided between the electronic ink display and the NFC antenna. The connection assembly is used to electrically connect the NFC antenna to the electronic ink display or cut off the electrical connection between the NFC antenna and the electronic ink display. The electronic ink display realizes charging from the mobile phone through the NFC antenna by wirelessly connecting the NFC antenna in the protective case to the NFC antenna built in the mobile phone, so that there is no need to integrate the power supply inside the electronic ink display to reduce the weight and thickness of the protective case. Moreover, by connecting the NFC antenna in the protective case to the NFC antenna built in the mobile phone through wireless matching, the transmission data of the mobile phone device can be displayed on the electronic ink display. By providing the connection assembly, the separation between the NFC antenna and the electronic ink display on the protective case is achieved, so that different NFC antennas can be combined with the electronic ink display through the same connection assembly, and NFC antennas with various shapes and parameters can be adapted to the electronic ink display through the standardized connection assembly. This design greatly improves the compatibility of mobile phones of various models and sizes, reduces the changes in molds and manufacturing processes required for the design of various mobile phones, and reduces the manufacturing and adaptation costs.

Brief Description of the Drawings

[0017] In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, we will briefly explain the drawings required for the description of the embodiments or the prior art below. It is quite obvious that the following described drawings are only part of the embodiments of the present invention, and it is possible to obtain other drawings according to these drawings on the premise that those skilled in the art do not pay creative labor.

[0018] The structures, proportions, sizes, etc. shown in the drawings of this specification are only intended to conform to the content described in the specification to enable those skilled in the art to understand and read, and are not limiting conditions for restricting the implementation of the present invention, so they do not have any technical substantial significance. Any change in structure, change in proportional relationship, or adjustment of size shall still be included within the scope of the technical content disclosed in the present invention on the premise that it does not affect the effects and achievable objectives of the present invention.

[0019]

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DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to more clearly and easily understand the objectives, features, and advantages of the present invention, we will next clearly and completely describe the technical solutions in the embodiments of the present invention in connection with the drawings in the embodiments of the present invention. It will become quite clear that the embodiments described below are only a part of the embodiments of the present invention and not all of the embodiments. All other embodiments obtained on the premise that those skilled in the art do not perform creative labor based on the embodiments of the present invention are all included within the protection scope of the present invention.

[0021] In the description of the present invention, terms such as "upper", "lower", "top", "bottom", "inner", "outer", etc. represent the orientation or positional relationship based on the direction or positional relationship shown in the drawings, and are only for the convenience of the description and simplification of the present invention, and do not explicitly or implicitly imply that the mentioned device or element must be placed along a specific direction or must be arranged and operated along a specific direction. Therefore, it should be understood that it cannot be construed as a limitation to the present invention. When a certain component is regarded as "connected" to another component, it should be clarified that the component may be directly connected to the other component or may be connected to the other component via an intermediate component.

[0022] Next, we will further explain the technical solution of the present invention through specific embodiments in connection with FIGS. 1 to 18.

[0023] A mobile phone 120 case with an NFC-based electronic ink display 200 having a protective case 100, in which a receiving cavity 110 for placing the mobile phone 120 is provided in the protective case 100, further comprising an NFC antenna 400 and an electronic ink display 200 arranged on the back of the protective case 100. A connection assembly 500 is provided between the electronic ink display 200 and the NFC antenna 400, and the connection assembly 500 is used to electrically connect the NFC antenna 400 to the electronic ink display 200 or to cut off the electrical connection between the NFC antenna 400 and the electronic ink display 200. A mobile phone 120 case with an NFC-based electronic ink display 200, characterized in that.

[0024] The protective case 100 includes a frame body 600 and a rear panel 700, and the accommodation cavity 110 is formed by being surrounded by the frame body 600 and the rear panel 700. In this embodiment, the electronic ink display 200 inside the protective case 100 does not require an external connection cable or a terminal plug to operate. When in use, the main control program is activated by means of NFC coil coupling technology to achieve data transmission, and it may be possible to clearly display the transmitted content. It does not require a built-in battery or Bluetooth connection. The image on the protective case 100 can be switched at any time, and wireless transmission may be realized. When the electronic ink display 200 operates, the electronic ink display 200 wirelessly connects to the NFC antenna 400 built into the mobile phone 120 via the NFC antenna 400 inside the protective case 100, and thus charging is achieved from the mobile phone 120 via the NFC antenna 400. As a result, there is no need to integrate the power source inside the electronic ink display 200. When the protective case 100 transmits a new image, it is slightly charged from the mobile phone 120 via NFC. After the transmission is completed, the image displayed on the electronic ink display 200 does not need to be maintained by power. The ink capsule microparticles are transmitted to different positions under the action of positive and negative charges. When the current is cut off, the ink capsule microparticles remain in their current positions, so there is no need to be maintained by power. With a design where the power demand from the mobile phone 120 is extremely small and can be considered negligible, it is possible to reduce the weight and thickness of the protective case 100. Moreover, by connecting the NFC antenna 400 inside the protective case 100 to the NFC antenna 400 built into the mobile phone 120 through wireless matching, it is realized to display the transmitted data of the mobile phone 120 on the electronic ink display 200. By providing the connection assembly 500, the separation between the NFC antenna 400 on the protective case 100 and the electronic ink display 200 is achieved. This is convenient for combining different NFC antennas 400 with the electronic ink display 200 via the same connection assembly 500, and it makes the compatibility of the mobile phone 120 case with the NFC electronic ink display 200 suitable for different models of the mobile phone 120.

[0025] Preferably, in order to electrically connect the NFC antenna 400 to the electronic ink display 200 or cut off the electrical connection between the NFC antenna 400 and the electronic ink display 200, the connection assembly 500 includes a flat cable 510, a connection terminal 520, and a connection element 530. One end of the flat cable 510 is electrically connected to the NFC antenna 400, and a through hole 540 is formed in the flat cable 510. The connection terminal 520 is disposed at one end of the flat cable 510 away from the NFC antenna 400, and the connection element 530 is disposed on the back surface of the protective case 100 and electrically connected to the electronic ink display 200. The connection element 530 can be inserted into or separated from the connection terminal 520 to achieve electrical connection or electrical interruption between the NFC antenna 400 and the electronic ink display 200. In one embodiment, the electronic ink display 200 includes the electronic ink display 200 and a control circuit board 640 electrically connected to the electronic ink display 200, and the connection element 530 is attached to the control circuit board 640 by means of pasting or welding and electrically connected to the control circuit board 640.

[0026] In one embodiment, the frame 600 and the rear panel 700 are integrally formed. The frame 600 is made of a TPU+TPE material and is formed into a rectangle. This is because when the mobile phone 120 drops, the TPE can effectively absorb and disperse the impact force, relieve the impact force received by each component of the mobile phone 120, especially the easily damaged display and the elements inside it. Compared with other rigid materials, due to the flexibility of the TPE, the risk of damage when the mobile phone 120 drops can be minimized, and it can play a protective role. The TPU not only has good anti-collision performance but also has excellent touch and anti-slip performance. When used as the manufacturing material of the frame 600 of the protective case 100, it can not only improve the comfort when holding the mobile phone 120 but also effectively reduce the probability of the mobile phone 120 slipping out of the hand. Moreover, the TPU and TPE materials are compatible with weight reduction compared with metals or other hard materials. When this material is adopted for the frame 600, the weight of the protective case 100 will not increase significantly. This helps to maintain the weight reduction of the mobile phone 120 case and meets the requirements of users for lightweight portable devices. The rear panel 700 is made of tempered glass. The tempered glass used as the material of the rear panel 700 has extremely high transparency and excellent wear resistance, and may provide a clear visual effect. Moreover, due to its high hardness, the tempered glass can effectively withstand scratches and wear caused by daily use and can protect the electronic ink display 200 from damage. In addition, a camera part integrally formed with the upper end of the frame 600 is provided, and the camera part extends in a direction away from the mounting plate 300 from the frame 600.

[0027] In another embodiment, in terms of the external design, the rear panel 700 of the electronic ink display 200 and the frame 600 of the mobile phone 120 are arranged separately, the frame 600 is removably connected to the rear panel 700, and the accommodation cavity 110 is formed by being surrounded by the frame 600 and the rear panel 700. A position limiting edge portion 610 is provided on the side wall of the frame 600, and the position limiting edge portion 610 forms a clamping groove together with the inner wall of the frame 600, and the edge of the rear panel 700 stays in the clamping groove. With the design of this embodiment, the user can not only freely change the pattern on the electronic ink display 200, but also switch the side frame of the protective case 100 according to personal preferences. The frame 600 is made of PC material, and the rear panel 700 is made of tempered glass material. The PC material is a more durable material with high impact resistance, which can better protect the important mobile phone during daily use, does not fade even after long-term use, has a delicate touch, and rounds and smoothes the edges and corners to enhance the protection ability. The tempered glass used as the material of the rear panel 700 has extremely high transparency and excellent abrasion resistance, and may provide a clear visual effect. Moreover, due to the high hardness of the tempered glass, it can effectively withstand scratches and wear caused by daily use, and can protect the electronic ink display 200 from damage. The two components of the PC material frame 600 and the tempered glass rear panel 700, when assembled removably, form a structure with excellent strength and durability.

[0028] Correspondingly, the mobile phone 120 case with the NFC electronic ink display 200 further includes a mounting plate 300 arranged on the back of the protective case 100, and a mounting groove 310 for mounting the NFC antenna 400 and the electronic ink display 200 is provided at the top of the mounting plate 300. By the edge of the NFC antenna 400 being tightly adjacent to the edge of the protective case 100, the overlapping area due to the projection between the NFC antenna 400 and the NFC antenna 400 of the mobile phone 120 is increased, so as to maximize the available installation area of the NFC antenna 400. When the area of the protective case 100 does not increase, the rear panel 700 of the protective case 100 enables the accommodation of a larger area NFC antenna 400 to improve the NFC signal transmission performance of the device.

[0029] In one embodiment based on the above embodiment, the upper edge of the mounting groove 310 extends to the frame at the upper end of the protective case 100, and since the upper edge of the mounting groove 310 is at a position higher than the upper part of the inner wall of the upper end of the protective case 100, the overlapping area due to the projection between the NFC antenna 400 and the NFC antenna 400 of the mobile phone 120 is increased.

[0030] At least one of the cross-sections of the upper and lower ends of the protective case 100 is larger than the cross-sections on the left and right sides of the protective case 100.

[0031] When the mobile phone 120 is placed in the accommodation cavity 110, the plane of the mobile phone 120 forms a first buffer portion 130 and a second buffer portion 140 with the upper and lower end walls and the left and right side walls respectively, and the distance between the first buffer portion 130 and the plane of the mobile phone 120 is larger than the distance between the second buffer portion 140 and the plane of the mobile phone 120. The reason for designing the wall thickness of the upper and lower ends of the protective case 100 to be larger than the wall thickness on the left and right sides is that on the one hand, when the area of the NFC antenna 400 increases, it is necessary to correspondingly increase the installation space in the protective case 100, and by increasing the wall thickness of the upper and lower ends of the protective case 100, the increase in the installation space is achieved. In this way, it not only provides sufficient space for the mounting groove 310 for the large NFC antenna 400, but also plays a role in maintaining the overall size and portability of the protective case 100. The thickened upper and lower end walls not only provide the space required for the installation of the large NFC antenna 400, but also improve the signal strength and enhance the compatibility of the device, so that the ability to transmit signals becomes stronger and it can also interact with NFC devices of various sizes and shapes; on the other hand, such a design enhances the structural strength of the protective case 100 and provides better protection against drops and impacts.

[0032] In the design of this embodiment, the need to mainly protect sensitive components within the mobile phone 120, particularly the NFC antenna 400 and the electronic ink display 200, is taken into account. When the area of the NFC antenna 400 increases as a crucial part of communication, it becomes more vulnerable to the impact when dropped. To mitigate this impact, increasing the wall thickness at the upper and lower ends of the protective case 100 can not only provide stronger physical protection when the mobile phone 120 drops, but also obtain a larger buffer area through the thickened end walls, effectively absorb the impact, and reduce damage to the NFC antenna 400 caused by vibration. Or, for the electronic ink display 200, as a display technology, it is easily damaged by physical impact and is relatively fragile. Therefore, the design of the protective case 100 also helps to protect the electronic ink display 200. Such a design reduces the failure rate caused by dropping or impact during daily use and extends the service life of the device. Moreover, the structure of the protective case 100 also supports the functional expansion of the NFC antenna 400, enabling an increase in the antenna area without increasing the risk of damage.

[0033] In another embodiment based on the above embodiment, by providing the distance between the edge of the mounting groove 310 approaching the side wall of the protective case 100 and the edge of the protective case 100 to be less than 5 mm, the overlapping area by projection between the NFC antenna 400 and the NFC antenna 400 of the mobile phone 120 is increased.

[0034] According to the design of this embodiment, the available installation area of the NFC antenna 400 is maximized, and without increasing the area of the protective case 100, the NFC antenna 400 can obtain a larger installation area within the existing design framework of the protective case 100, saving space and maintaining the lightweight characteristics of the protective case 100.

[0035] Preferably, the mobile phone 120 case with the electronic ink display 200 further includes an NFC cover plate 410, and the NFC cover plate 410 covers the NFC antenna 400. When the NFC cover plate 410 covers the NFC antenna 400, the NFC cover plate 410 is located in the same plane as the upper surface of the mounting plate 300.

[0036] In this embodiment, the NFC cover plate 410 is added to the NFC antenna 400, designed such that the NFC cover plate 410 conforms to the shape of the NFC antenna 400, and when the NFC cover plate 410 covers the NFC antenna 400, the NFC cover plate 410 is located in the same plane as the upper surface of the mounting plate 300. When the NFC cover plate 410 is attached to cover the NFC antenna 400 without gaps, the design of the NFC cover plate 410 enables the NFC antenna 400 to be firmly attached in the groove, avoiding the problem of the NFC antenna 400 loosening or shifting during use. Also, the buffer protection layer formed by such a design effectively absorbs and disperses external pressure, preventing damage to the NFC antenna 400.

[0037] In one embodiment, a rupture prevention protrusion is provided at the supporting corner of the protective case 100.

[0038] Providing rupture prevention protrusions at the four corners of the frame body 600 helps to disperse and absorb impact forces from all angles. When the mobile phone 120 accidentally drops from a high position, the rupture prevention protrusions enable the impact force to be effectively transferred and dispersed, reducing the impact force directly acting on the plane and internal components of the mobile phone 120. This design helps to protect sensitive elements within the mobile phone 120 and the protective case 100, such as the chip, the electronic ink display 200, and the NFC antenna 400 within the mobile phone 120, reducing the possibility of damage.

[0039] In addition, in this embodiment, ribs 150 are further disposed on the inner wall of the protective case 100. Such a design can reduce the damage to the mobile phone 120 during a fall. The protective case 100 includes a frame body 600 and a rear panel 700, and two ribs 150 are respectively disposed on the inner walls at the upper and lower ends of the frame body 600. Such a design helps to enhance the overall strength of the protective case 100. With such an arrangement, when the mobile phone 120 is impacted, the impact force can be absorbed and dispersed, thereby reducing the damage to the internal components of the mobile phone 120.

[0040] In one embodiment, a buffer material 320 is provided in the mounting groove 310.

[0041] In order to reduce the stress of the electronic ink display 200 caused by the fall of the protective case 100, a buffer material 320 is disposed between the rear panel 700 and the electronic ink display 200 in the mounting groove 310. The buffer material 320 is a foam sponge, and the foam sponge can be a high-elastic PORON foam sponge. It is possible to use an adhesive to attach and fix the front and back surfaces of the foam sponge to the bottom surface of the mounting groove 310 and the electronic ink display 200 respectively.

[0042] In one embodiment, buffer protrusions are provided on the edge of the protective case 100.

[0043] If a plurality of buffer protrusions are also arranged on the edge of the protective case 100, when an additional protective layer may be formed on the edge of the mobile phone 120 due to the arrangement of the buffer protrusions, on the one hand, when the mobile phone 120 accidentally drops, the buffer protrusions touch the ground first and the impact force can be dispersed, so that the force directly transmitted to the edge of the mobile phone 120 is reduced, and the risk of damage to the mobile phone 120 is lowered. In addition, by enhancing the structural strength of the edge of the protective case 100 by the buffer protrusions, it can withstand the impact during falling and reduce cracks and damage caused by falling. On the other hand, by increasing the friction between the hand and the protective case 100 to provide a better gripping sensitivity, the user feels better stability when holding the mobile phone 120, and the probability of the mobile phone 120 falling is reduced. Since the friction increases due to the buffer protrusions, the probability of the mobile phone 120 falling is reduced even when the hand is wet or sweaty, and the safety when using the mobile phone 120 is improved. The buffer protrusions may be made of materials such as silicon or rubber.

[0044] A lens frame 900 is attached to the back of the protective case 100, and the lens frame 900 is connected to the holder 910 by a hinge. When the protective case 100 is placed horizontally, the holder 910 expands to support the mobile phone 120 case.

[0045] In the case of the mobile phone 120 with the electronic ink display 200 in this embodiment, a camera unit integrally formed with the upper end of the frame 600 is provided. The camera unit extends in a direction away from the mounting plate 300 from the frame 600, and a ridge line is provided on the back of the protective case 100 approaching the edge. By surrounding the lens frame 900 with the ridge line and approaching both sides of the edge, it plays a role in protecting the camera. In order to free the user's both hands, the mobile phone 120 installed in the protective case 100 is supported on a flat surface. A lens frame 900 is provided on the back of the protective case 100, and a holder 910 is provided on the lens frame 900. The shape of the holder 910 is the same as that of the lens frame 900, and the lens frame 900 is connected to the holder 910 by a hinge. When the holder 910 forms an included angle with the protective case 100 through the hinge, the holder 910 will support the mobile phone 120 located in the protective case 100. Preferably, the holder 910 is connected to the lens frame 900 by a hinge via a damping shaft. Moreover, on the lens frame 900, a concave groove for accommodating the holder 910 and conforming to the shape of the holder 910 is provided, and the holder 910 is made of metal.

[0046] Also, in this embodiment, in order to realize the basic functions of the mobile phone 120 case and facilitate the operation of the mobile phone 120 in the protective case 100, a speaker hole 670, a camera hole 710, an ON / OFF hole, a volume adjustment key hole 650, and a charging hole 680 are provided on the protective case 100. When the mobile phone 120 is assembled into the accommodation cavity 110, the speaker hole 670, the camera hole 710, the ON / OFF hole, the volume adjustment key 650, and the charging hole 680 respectively correspond to the speaker, the camera, the ON / OFF key, the volume adjustment key, and the charging port of the mobile phone 120. Preferably, a lanyard hole 660 is also provided on the protective case 100.

[0047] Preferably, to facilitate the accommodation of the NFC antenna 400 in the accommodation cavity 110, the bottom surface of the accommodation cavity 110 of the protective case 100 is covered with a Mylar film 630, and the NFC antenna 400 is located between the Mylar film 630 and the rear panel 700. The Mylar film 630 can be a PC Mylar film 630.

[0048] The operating principle of the present invention is approximately as follows. When in use, first pass the lanyard through the lanyard hole, then put the mobile phone 120 into the protective case 100, and ensure that the speaker hole 670, camera hole 710, ON / OFF hole, volume adjustment key hole 650 and charging hole 680 of the protective case 100 correspond one-to-one to the speaker, camera, ON / OFF key, volume adjustment key and charging port of the mobile phone 120 respectively. After being correctly installed, the NFC antenna 400 on the protective case 100 corresponds to the NFC antenna 400 unique to the mobile phone 120. The electronic ink display 200 on the protective case 100 achieves charging from the mobile phone 120 through the NFC antenna 400 and the NFC antenna 400 unique to the mobile phone 120. By connecting the electronic ink display 200 to the NFC antenna 400 through the connection assembly 500, the image conversion of the electronic ink display 200 is achieved. Before the next charging, the electronic ink display 200 may always continue to display an image. When product switching or repair is required, it is possible to remove the NFC antenna 400 from the electronic ink display 200 through the connection assembly 500, switch the corresponding parts, and then add different antennas to the same transmission mechanism and apply them to mobile phone cases of different models, so as to improve the assembly efficiency and reduce the assembly cost.

[0049] The above embodiments are only used to explain the technical solutions of the present invention and do not limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that there is still a possibility of modifying the technical solutions described in the above embodiments or replacing some of the technical features therein. However, these corrections or replacements should not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present invention.

Explanation of Reference Numerals

[0050] 100 - Protective Case 110 - Accommodation Chamber 120 - Mobile Phone 130 - First Buffer Portion 140 - Second Buffer Portion 150 - Rib 160 - Flange 200 - Electronic Ink Display 300 - Mounting Plate 310 - Mounting Groove 320 - Buffer Material 400 - NFC Antenna 410 - NFC Cover Plate 500 - Connection Assembly 510 - Flat Cable 520 - Connection Terminal 530 - Connection Element 540 - Through Hole 600 - Frame 610 - Position Limiting Side Portion 620 - ON / OFF Key Portion 630 - Mylar Film 640 - Control Circuit Board 650 - Volume Adjustment Key Hole 660 - Lanyard Hole 670 - Loudspeaker Hole 680 - Charging Hole 700 - Rear Panel 710 - Camera Hole 800 - Glass Cover Plate 900 - Lens Frame 910 - Holder

Claims

1. A mobile phone case with an NFC-based electronic ink display, comprising a protective case, the protective case being provided with a receiving cavity for placing a mobile phone, the mobile phone case further comprising an NFC antenna and an electronic ink display disposed on a rear surface of the protective case, A connection assembly is provided between the electronic ink display and the NFC antenna, the connection assembly being used to electrically connect the NFC antenna to the electronic ink display or to cut off the electrical connection between the NFC antenna and the electronic ink display. A mobile phone case with an NFC-based electronic ink display.

2. The protective case further includes a mounting plate disposed on the rear surface thereof, and a mounting groove is provided at an upper end of the mounting plate for mounting the NFC antenna and the electronic ink display. The edge of the NFC antenna is firmly adjacent to the edge of the protective case, thereby increasing the overlapping area due to projection between the NFC antenna and the NFC antenna of the mobile phone.

2. The NFC-based electronic ink display mobile phone case of claim 1.

3. The upper edge of the mounting groove extends to the frame of the upper end of the protective case, and the upper edge of the mounting groove is located higher than the upper part of the inner wall of the upper end of the protective case, thereby increasing the overlapping area due to projection between the NFC antenna and the NFC antenna of the mobile phone. The NFC-based electronic ink display mobile phone case according to claim 2 .

4. The distance between the edge of the mounting groove approaching the side wall of the protective case and the edge of the protective case is set to less than 5 mm, so that the overlapping area due to projection between the NFC antenna and the NFC antenna of the mobile phone is increased. The NFC-based electronic ink display mobile phone case according to claim 2 .

5. and an NFC cover plate, the NFC cover plate covering the NFC antenna, the NFC cover plate being flush with an upper surface of the mounting plate when the NFC cover plate covers the NFC antenna. The NFC-based electronic ink display mobile phone case according to claim 2 .

6. At least one of the cross sections of the upper and lower ends of the protective case is larger than the cross sections of the left and right sides of the protective case.

2. The NFC-based electronic ink display mobile phone case of claim 1.

7. The mobile phone case with an electronic ink display based on NFC according to claim 6, characterized in that the protective case is provided with a protrusion at a supporting corner thereof for preventing bursting.

8. The NFC-based mobile phone case with electronic ink display according to claim 2, wherein a cushioning material is provided in the mounting groove.

9. The mobile phone case with an electronic ink display based on NFC according to claim 2, wherein the protective case is provided with a buffer protrusion on an edge thereof.

10. A lens frame is attached to the rear of the protective case, and the lens frame is connected to a holder by a hinge, and then when the protective case is placed horizontally, the holder expands to support the mobile phone case.

2. The NFC-based electronic ink display mobile phone case of claim 1.

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