NFC function control circuit, NFC ink screen structure and mobile phone shell

Abstract

The utility model relates to an NFC function control circuit, an NFC ink screen structure and a mobile phone shell. The NFC function control circuit comprises an antenna loop; the trigger module is arranged on the antenna loop and is used for enabling the antenna loop to be temporarily conducted when being pressed; the NFC circuit is arranged in the antenna loop and is used for receiving and / or sending an NFC signal through the antenna loop; and the delay disconnection module is arranged in the antenna loop and is used for controlling the preset conduction time of the antenna loop. According to the scheme provided by the invention, the NFC function can be automatically disconnected within the preset time after being started, so that the NFC function is effectively prevented from being started for a long time, the energy consumption of the application end is effectively reduced, the continuous heating of the application end is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to an NFC function control circuit, an NFC ink screen structure, and a mobile phone case. Background Art

[0002] With the rapid development of mobile communication technology, NFC (near-field communication) technology has been widely used in smartphones due to its convenience and security, providing users with convenient services such as mobile payment, information exchange, and access control. NFC technology is also used in mobile phone cases with ink screens, allowing NFC ink screen mobile phone cases to update the display pattern through NFC technology.

[0003] In related technologies, NFC ink screen mobile phone cases generally use passive activation to achieve communication with mobile phones through NFC technology. Due to the automatic trigger mechanism of some mobile phone systems, once the NFC ink screen mobile phone case is connected to the above-mentioned mobile phone with an automatic trigger mechanism, the NFC function of the mobile phone will remain in a continuous connection state, causing the mobile phone to generate unnecessary power consumption and continuous heating, thereby affecting the user experience. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related technology, the present application provides an NFC function control circuit, an NFC ink screen structure and a mobile phone case, which can automatically disconnect within a preset time after the NFC function is activated, effectively avoiding the NFC function from being turned on for a long time, thereby effectively reducing the energy consumption of the application end and avoiding continuous heating of the application end, thereby improving the user experience.

[0005] In a first aspect, the present application provides an NFC function control circuit, comprising:

[0006] Antenna loop;

[0007] A trigger module provided in the antenna loop, for temporarily turning on the antenna loop when pressed;

[0008] an NFC circuit provided in the antenna loop, configured to receive and / or send NFC signals via the antenna loop; and

[0009] The time-delay disconnection module provided in the antenna loop is used to control the antenna loop to be turned on for a preset time.

[0010] In some embodiments, the trigger module includes: a touch switch, a micro switch, a key switch, and a membrane switch.

[0011] In some embodiments, the NFC circuit and the trigger module are arranged in series in the antenna loop.

[0012] In some embodiments, the time-delay disconnection module and the trigger module are arranged in parallel in the antenna loop.

[0013] In some embodiments, the time-delay disconnection module includes: a self-locking module and a time-delay control circuit;

[0014] The self-locking module and the trigger module are arranged in parallel in the antenna loop; the delay control circuit is coupled to the self-locking module; wherein, when the delay control circuit is in operation, it controls the self-locking module to be turned on for a preset time.

[0015] In some embodiments, the delay control circuit includes at least one of a 555 timer circuit, an RC delay circuit, and a digital logic delay circuit.

[0016] In some embodiments, the NFC circuit is electrically connected to the delayed disconnection module; wherein, when in operation, the NFC circuit provides an operating voltage to the delayed disconnection module.

[0017] A second aspect of the present application provides an NFC ink screen structure, comprising: an ink screen and the NFC function control circuit described in the first aspect of the present application;

[0018] The ink screen is electrically connected to the NFC circuit of the NFC function control circuit so that the ink screen displays a pattern according to the NFC signal received by the NFC circuit.

[0019] The third aspect of the present application provides a mobile phone case, comprising: a shell and the NFC ink screen structure described in the second aspect of the present application, wherein the ink screen of the NFC ink screen structure is arranged on the back of the shell.

[0020] In some embodiments, a trigger area is provided on the side or back of the housing, and the trigger module of the NFC ink screen structure is provided in the trigger area.

[0021] The technical solution provided by this application may have the following beneficial effects:

[0022] The technical solution of the present application, by providing a trigger module and a delayed disconnection module, enables the user to briefly turn on the antenna circuit through the delayed disconnection module after pressing the trigger module, thereby controlling the temporary activation of the NFC function, so that the NFC function is automatically disconnected within a preset time after being activated, effectively avoiding the NFC function from being activated for a long time, thereby effectively reducing the energy consumption of the application end and avoiding continuous heating of the application end, thereby improving the user experience; in addition, it avoids continuous heating, thereby effectively reducing damage to the device caused by continuous heating, and at the same time can ensure the normal operation of the NFC function of the device, prevent the device from affecting effective communication with other NFC devices due to the NFC function being occupied, and improve the stability of the NFC function.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0025] Figure 1 1 is a schematic structural diagram of an NFC function control circuit according to an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the structure of the NFC ink screen shown in an embodiment of the present application;

[0027] Figure 3 It is a structural schematic diagram of a mobile phone case shown in an embodiment of the present application.

[0028] Figure numerals: 100, antenna loop; 200, trigger module; 300, NFC circuit; 400, delayed disconnection module; 410, self-locking module; 420, delay control circuit; 500, ink screen; 600, shell; 610, trigger area. DETAILED DESCRIPTION

[0029] The following describes embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate embodiments of the present application, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0031] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0032] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] In related technologies, NFC ink screen mobile phone cases generally use passive activation to achieve communication with mobile phones through NFC technology. Due to the automatic trigger mechanism of some mobile phone systems, once the NFC ink screen mobile phone case is connected to the above-mentioned mobile phone with an automatic trigger mechanism, the NFC function of the mobile phone will remain in a continuous connection state, causing the mobile phone to generate unnecessary power consumption and continuous heating, thereby affecting the user experience.

[0034] To address the above issues, an embodiment of the present application provides an NFC function control circuit that can automatically disconnect the NFC function within a preset time after it is activated, effectively preventing the NFC function from being turned on for a long time, thereby effectively reducing energy consumption on the application side and avoiding continuous heating on the application side, thereby improving the user experience.

[0035] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0036] Figure 1 It is a structural diagram of the NFC function control circuit shown in an embodiment of the present application.

[0037] See also Figure 1 The NFC function control circuit of the present application includes an antenna loop 100, a trigger module 200, an NFC circuit 300 and a delayed disconnection module 400.

[0038] The antenna loop 100 is used to receive and transmit NFC signals. It is understood that when the antenna loop 100 is turned on, the antenna loop 100 can receive NFC signals and generate corresponding voltages for other circuits or modules within the loop to operate.

[0039] The trigger module 200 is disposed within the antenna loop 100. When pressed, the trigger module 200 temporarily turns on the antenna loop 100. It should be understood that when a user presses the trigger module 200, the triggering operation causes the antenna loop 100 to temporarily turn on. Specifically, the trigger module 200 temporarily turns on the antenna loop 100, thereby completing the loop and generating voltage upon receiving an NFC signal to power other circuits or modules within the loop.

[0040] In some embodiments, the trigger module 200 may include one of a tact switch, a micro switch, a push button switch, and a membrane switch. It should be understood that the tact switch, the micro switch, the push button switch, and the membrane switch are all through physical contact, that is, by pressing the button used for triggering or the corresponding area on the switch, the metal shrapnel, the conductive rubber or the optical circuit in the switch is changed, thereby achieving the conduction of the circuit; when the button is released to trigger the operation, the above-mentioned metal shrapnel, the conductive rubber or the optical circuit returns to its original state, causing the circuit to be disconnected. The tact switch, the micro switch, the push button switch, and the membrane switch in this application can all be implemented using relevant technologies, which will not be described in detail here. Among them, the size specifications of the trigger module 200 can be miniature design specifications, so that the space occupied by the trigger module 200 can be reduced, making the trigger module 200 suitable for use on a mobile phone case.

[0041] The NFC circuit 300 is provided in the antenna loop 100, and the NFC circuit 300 is used to receive and / or send NFC signals through the antenna loop 100. It should be understood that when the NFC function control circuit of the present application is applied to the ink screen, the NFC circuit 300 can be used only to receive NFC signals through the antenna loop 100. Specifically, after the NFC circuit 300 receives the electrical signal from the antenna loop 100, it amplifies, filters, and digitizes the electrical signal to form a display signal for controlling the ink screen to display a pattern. Among them, the NFC circuit 300 of the present application can adopt the NFC module in the related technology, which will not be described in detail here.

[0042] In some embodiments, the NFC circuit 300 and the trigger module 200 are arranged in series with the antenna loop 100. It is understood that the NFC circuit 300 and the trigger module 200 are arranged in series. When the trigger module 200 is controlled to turn on the antenna loop 100, the antenna loop 100 can provide an operating voltage to the NFC circuit 300, and the NFC circuit 300 can receive NFC signals through the antenna loop 100.

[0043] The delayed disconnection module 400 is provided in the antenna circuit 100. The delayed disconnection module 400 is used to control the antenna circuit 100 to be on for a preset time. The preset time can be set according to the user's actual needs. For example, if the preset time is 15 seconds, the delayed disconnection module 400 will control the antenna circuit 100 to automatically disconnect after 15 seconds of being on. This enables automatic delayed disconnection of the antenna circuit 100, thereby realizing automatic disconnection control of the NFC function.

[0044] In some embodiments, the delayed disconnect module 400 and the trigger module 200 are arranged in parallel with the antenna circuit 100. It is understood that the delayed disconnect module 400 and the trigger module 200 are arranged in parallel. Because the delayed disconnect module 400 and the trigger module 200 are arranged in parallel, the delayed disconnect module 400 and the trigger module 200 do not affect each other's control over the conduction of the antenna circuit 100. In other words, the trigger module 200 controlling the antenna circuit 100 to be turned on and then turned off instantaneously does not affect the delayed disconnect module 400 controlling the antenna circuit 100 to be turned on and then turned off after a preset time, effectively ensuring the stability of the automatic disconnection control process of the NFC function.

[0045] The NFC function control circuit of the present application is provided with a trigger module and a delayed disconnection module, so that after the user presses the trigger module, the antenna circuit is instantaneously turned on, and the delayed disconnection module located on the antenna circuit is activated. The antenna circuit is then briefly turned on by the delayed disconnection module, so that the NFC circuit located on the antenna circuit works within a preset time, thereby controlling the temporary activation of the NFC function, so that the NFC function is automatically disconnected within a preset time after being activated, effectively avoiding the NFC function being turned on for a long time, thereby effectively reducing the energy consumption of the application end and avoiding continuous heating of the application end, thereby improving the user experience.

[0046] In some embodiments, the delayed-off module 400 may include a self-locking module 410 and a delay control circuit 420. The self-locking module 410 is arranged in parallel with the trigger module 200 in the antenna circuit 100. In other words, the self-locking module 410 and the trigger module 200 are arranged in parallel. The delay control circuit 420 is coupled to the self-locking module 410. The self-locking module 410 may utilize a component that switches on and off based on an input voltage level. For example, the self-locking module 410 may be a transistor or a relay. The self-locking function is achieved by cooperating with the voltage level input of the delayed-off module 400.

[0047] The delay control circuit 420 controls the self-locking module 410 to conduct for a preset time. Specifically, after being activated, the delay control circuit 420 can first output a first electrical level to the self-locking module 410, controlling the self-locking module 410 to conduct, thereby controlling the antenna circuit 100 to conduct. After the delay control circuit 420 is activated, the preset time begins to be counted. After the timer expires, the delay control circuit 420 outputs a second electrical level to the self-locking module 410, causing the self-locking module 410 to disconnect. At this time, the antenna circuit 100 is controlled to disconnect, thereby powering off the NFC circuit 300 and disabling the NFC function. The first electrical level can be a high level, and the second electrical level can be a low level.

[0048] In some embodiments, the delay control circuit 420 can be at least one of a 555 timer circuit, an RC delay circuit, and a digital logic delay circuit. In this application, both the self-locking module 410 and the delay control circuit 420 can be implemented using related technologies, which will not be described in detail here.

[0049] In some embodiments, the NFC circuit 300 is electrically connected to the delayed disconnection module 400, wherein the NFC circuit 300 provides an operating voltage to the delayed disconnection module 400 during operation. It is understood that the delayed disconnection module 400 can be activated by the NFC circuit 300 when the NFC circuit 300 is in operation. In this way, after the trigger module 200 is manipulated to conduct the antenna circuit 100 and the NFC circuit 300 is activated, the NFC circuit 300 is used to control the delayed disconnection module 400, thereby achieving delayed disconnection control of the antenna circuit 100 by activating the delayed disconnection module 400.

[0050] Compared with directly controlling the conduction or disconnection of the antenna circuit 100 by setting a relevant switch, for example, in the related art, the antenna circuit 100 is controlled to be on or off by setting a manual start switch, the above-mentioned method of the present application can automatically disconnect the circuit after the antenna circuit 100 is turned on, without having to operate the switch again, thereby effectively ensuring the normal operation of the equipment and reducing energy consumption.

[0051] Figure 2 This is a structural diagram of the NFC ink screen structure shown in an embodiment of the present application.

[0052] This application also provides an embodiment of an NFC ink screen structure.

[0053] Please also see Figure 2 The NFC e-ink screen structure of the present application includes an e-ink screen 500 and the NFC function control circuit described above. The e-ink screen 500 is electrically connected to the NFC circuit 300 of the NFC function control circuit, so that the e-ink screen 500 displays a pattern based on the NFC signal received by the NFC circuit 300.

[0054] Among them, the NFC ink screen structure of the present application, through the NFC function control circuit described earlier in the present application, can set a trigger module and a delayed disconnection module, so that after the user presses the trigger module, the antenna circuit is briefly turned on through the delayed disconnection module, thereby controlling the temporary opening of the NFC function, so that the NFC function is automatically disconnected within a preset time after being activated, effectively avoiding the NFC function from being turned on for a long time, thereby effectively reducing the energy consumption of the application end and avoiding continuous heating of the application end, thereby improving the user experience.

[0055] Figure 3 It is a structural schematic diagram of a mobile phone case shown in an embodiment of the present application.

[0056] The present application also provides an embodiment of a mobile phone case.

[0057] Please also see Figure 3The mobile phone case of the present application includes a shell 600 and the NFC ink screen structure described above in the present application. The ink screen 500 of the NFC ink screen structure is arranged on the back of the shell 600.

[0058] The mobile phone case of the present application is provided with an ink screen 500 on the back of the shell 600, and uses the NFC signal received by the NFC circuit 300 electrically connected to the ink screen 500 to control the display pattern of the ink screen 500.

[0059] In some embodiments, a trigger area 610 is provided on the side or back of the housing 600, and the trigger module 200 of the NFC ink screen structure is provided in the trigger area 610. The trigger module 200 is provided in the trigger area 610 located on the side or back of the housing 600, so that the process of controlling the on / off switch of the NFC function of the ink screen can be more convenient, that is, when the user is holding the mobile phone case after the mobile phone is assembled, the user can directly control the on / off switch of the NFC function of the ink screen through the fingers of the same hand holding the mobile phone case. Specifically, the trigger module 200 can be located under the surface of the housing 600 corresponding to the trigger area 610, so as to protect the trigger module 200 and reduce the occurrence of false triggering of the trigger module 200.

[0060] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have their own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the description are not necessarily required for this application. In addition, it is understood that the steps in the method of the embodiment of the present application can be adjusted in sequence, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0061] The embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An NFC function control circuit, characterized in that: include: Antenna loop; A trigger module provided in the antenna loop, for temporarily turning on the antenna loop when pressed; an NFC circuit provided in the antenna loop, configured to receive and / or send NFC signals via the antenna loop; and The time-delay disconnection module provided in the antenna loop is used to control the antenna loop to be turned on for a preset time.

2. The NFC function control circuit according to claim 1, characterized in that: The trigger module includes: one of a touch switch, a micro switch, a key switch, and a membrane switch.

3. The NFC function control circuit according to claim 1, characterized in that: The NFC circuit and the trigger module are arranged in series in the antenna loop.

4. The NFC function control circuit according to claim 1, characterized in that: The time-delay disconnection module and the trigger module are arranged in parallel in the antenna loop.

5. The NFC function control circuit according to claim 4, characterized in that: The time-delay disconnection module includes: a self-locking module and a time-delay control circuit; The self-locking module and the trigger module are arranged in parallel in the antenna loop; the delay control circuit is coupled to the self-locking module; wherein, when the delay control circuit is in operation, it controls the self-locking module to be turned on for a preset time.

6. The NFC function control circuit according to claim 5, characterized in that: The delay control circuit includes at least one of a 555 timer circuit, an RC delay circuit, and a digital logic delay circuit.

7. The NFC function control circuit according to any one of claims 1 to 6, characterized in that: The NFC circuit is electrically connected to the delayed disconnection module; wherein, the NFC circuit provides an operating voltage to the delayed disconnection module when in operation.

8. An NFC ink screen structure, characterized in that: include: An ink display and an NFC function control circuit according to any one of claims 1 to 7; The ink screen is electrically connected to the NFC circuit of the NFC function control circuit so that the ink screen displays a pattern according to the NFC signal received by the NFC circuit.

9. A mobile phone case, characterized in that: include: A shell and the NFC ink screen structure according to claim 8, wherein the ink screen of the NFC ink screen structure is arranged on the back of the shell.

10. The mobile phone case according to claim 9, characterized in that: A trigger area is provided on the side or back of the shell, and the trigger module of the NFC ink screen structure is provided in the trigger area.

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