Patent Publication Number: US-11641059-B2

Title: Wireless communication structure, display panel and wireless communication device

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     This application claims priority to Chinese Patent Application No. 202210433184.5, filed on Apr. 24, 2022, which is hereby incorporated by reference in its entirety. 
     TECHNICAL FIELD 
     The present application relates to the technical field of display devices, and particularly to a wireless communication structure, a display panel and a wireless communication device. 
     BACKGROUND 
     Handheld wireless communication devices (e.g. cell phones, smart watches, etc.) are becoming increasingly functional, and market requirements for device appearance and wireless communication performance are also becoming more and more demanding. In the era of the 5th generation mobile communications (5G), since both millimeter-waves (mm-waves) and non-millimeter waves (non-millimeter-waves) are involved, types and numbers of antennas in a handheld wireless communication device are increasing. In addition, functions of near field communication (NFC) are becoming increasingly popular, so NFC coils also have been provided in more and more handheld wireless communication devices. 
     Meanwhile, screen-to-body ratios of the handheld wireless communication devices are becoming higher and higher. Therefore, since overall sizes of the devices cannot be significantly increased, arranging wireless communication modules in display panels is a critical technology trend in foreseeable future. However, internal spaces of the display panels are limited and have optical requirements, so how to arrange the wireless communication modules in the display panels has become an important technical problem to be solved urgently. 
     SUMMARY 
     Embodiments of the present application provide a wireless communication structure, a display panel, and a wireless communication device, in order to solve the problem of how to arrange the wireless communication module in a limited space and ensure a desired optical performance of the display panel. 
     An embodiment of a first aspect of the present application provides a wireless communication structure comprising: a loop structure comprising a first connection end, a second connection end and a coil body, at least a part of the coil body being connected between the first connection end and the second connection end; an antenna connected to the coil body, wherein the antenna comprises a non-millimeter-wave antenna, the non-millimeter-wave antenna comprises a non-millimeter-wave radiating portion and a non-millimeter-wave feeding portion, and the non-millimeter-wave radiating portion is connected to the coil body; wherein the coil body is provided with one or more first blocking portions, the one or more first blocking portions are configured to allow wireless signal currents transmitted and/or received by the loop structure to pass through and block non-millimeter-wave wireless signal currents transmitted and/or received by the non-millimeter-wave antenna. 
     According to an implementation of the first aspect of the present application, the one or more first blocking portions comprise a plurality of first blocking portions, and the plurality of first blocking portions are arranged on both sides of the non-millimeter-wave radiating portion. 
     According to any implementation of the first aspect of the present application, the antenna further comprises one or more millimeter-wave antenna units, and the one or more millimeter-wave antenna units are connected to the coil body. 
     According to any implementation of the first aspect of the present application, at least one of the millimeter-wave antenna units is reused as a part of the non-millimeter-wave radiating portion. 
     According to any implementation of the first aspect of the present application, the coil body is provided with one or more second blocking portions, the one or more second blocking portions are configured to allow wireless signal currents transmitted and/or received by the loop structure and non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna to pass through, and the one or more second blocking portions are configured to block millimeter-wave currents transmitted and/or received by the one or more millimeter-wave antenna units, wherein line widths of one or more the second blocking portions are greater than line widths of the one or more first blocking portions. 
     According to any implementation of the first aspect of the present application, the one or more second blocking portions comprise a plurality of second blocking portions, and the plurality of second blocking portions are arranged on both sides of one of the one or more millimeter-wave antenna units. 
     According to any implementation of the first aspect of the present application, the non-millimeter wave radiating portion further comprises a first connection wire for connecting a millimeter-wave antenna unit to the non-millimeter-wave feeding portion, and the first connection wire is a part of the coil body. 
     According to any implementation of the first aspect of the present application, the one or more millimeter-wave antenna units comprise a plurality of millimeter-wave antenna units, and two or more of the plurality of millimeter-wave antenna units form a millimeter-wave antenna array in combination. 
     According to any implementation of the first aspect of the present application, each of the plurality of millimeter-wave antenna units in the millimeter-wave antenna array is connected to the coil body, and one of the one or more first blocking portions is arranged between adjacent millimeter-wave antenna units in the millimeter-wave antenna array. 
     According to any implementation of the first aspect of the present application, the coil body is provided with a second blocking portion, the second blocking portion is connected between adjacent millimeter-wave antenna units, the second blocking portion is configured to allow wireless signal currents transmitted and/or received by the loop structure and non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna to pass through, and the second blocking portion is configured to block millimeter-wave currents transmitted and/or received by the millimeter-wave antenna units. 
     According to any implementation of the first aspect of the present application, the millimeter-wave antenna units are spaced apart from the non-millimeter-wave radiating portion on an extending path of the coil body, and at least one of the one or more first blocking portions is arranged between the millimeter-wave antenna units and the non-millimeter-wave radiating portion. 
     According to any implementation of the first aspect of the present application, the loop structure is configured to transmit and/or receive wireless signals in non-millimeter-wave band, the coil body is configured to transmit and/or receive wireless signals in non-millimeter-wave band by coupling. 
     An embodiment of a second aspect of the present application further provides a display panel comprising the wireless communication structure according to any of the above embodiments of the first aspect. 
     According to an implementation of the second aspect of the present application, the display panel further comprises a touch layer, wherein the touch layer comprises mesh-shaped metal wiring, and both the loop structure and the antenna are positioned in the touch layer. 
     According to any implementation of the second aspect of the present application, the display panel comprises a first area and a second area surrounding the first area, the first area is a display area, the second area comprises a display area and/or a non-display area, and the loop structure is positioned in the second area; wherein the coil body is arranged in the second area and surrounds the first area. 
     An embodiment of a third aspect of the present application provides a wireless communication device, comprising the display panel according to any of the above embodiments of the second aspect. 
     In the wireless communication structure provided by an embodiment of the present application, the wireless communication structure includes the loop structure and the antenna. The loop structure includes the first connection end, the second connection end and the coil body, and is configured to transmit and/or receive wireless signals on the coil body through the first connection end and the second connection end. Since the antenna is connected to the coil body of the loop structure, at least a part of the coil body may transmit and/or receive wireless signals of the loop structure and wireless signals of the antenna at the same time. An overall area occupied by the loop structure and the antenna can be reduced, so that two or more antennas may be disposed in a limited space, and thus the influence on the optical performance of the display screen can be reduced, so that a desired optical performance of the display screen is ensured. Besides, a patterning process of the antenna is simplified, thereby improving the manufacturing efficiency of the antenna and reducing the manufacturing cost. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Features, objects and advantages of the present application will be clearer from the detailed description of following reference drawings of non-limited embodiments, wherein the same or similar reference numerals and/or letters mean the same or similar features. 
         FIG.  1    is a schematic structural view of a wireless communication structure of a display panel according to a first embodiment of a first aspect of the present application. 
         FIG.  2    is a schematic structural view of a wireless communication structure of a display panel according to a second embodiment of a first aspect of the present application. 
         FIG.  3    is a schematic structural view of a wireless communication structure of a display panel according to a third embodiment of a first aspect of the present application. 
         FIG.  4    is a schematic structural view of a wireless communication structure of a display panel according to a fourth embodiment of a first aspect of the present application. 
         FIG.  5    is a schematic structural view of a wireless communication structure of a display panel according to a fifth embodiment of a first aspect of the present application. 
         FIG.  6    is a schematic structural view of a wireless communication structure of a display panel according to a sixth embodiment of a first aspect of the present application. 
         FIG.  7    is a schematic structural view of a wireless communication structure of a display panel according to a seventh embodiment of a first aspect of the present application. 
         FIG.  8    is a partial magnified structural view of  FIG.  7   . 
         FIG.  9    is a schematic structural view of a wireless communication structure of a display panel according to an eighth embodiment of a first aspect of the present application. 
         FIG.  10    is a schematic structural view of a wireless communication structure of a display panel according to a ninth embodiment of a first aspect of the present application. 
         FIG.  11    is a schematic structural view of a wireless communication structure of a display panel according to a tenth embodiment of a first aspect of the present application. 
         FIG.  12    is a partial magnified structural view of  FIG.  11   . 
         FIG.  13    is a partial magnified structural view of  FIG.  11    in an eleventh embodiment. 
         FIG.  14    is a partial magnified structural view of  FIG.  11    in a twelfth embodiment. 
         FIG.  15    is a schematic structural view of a wireless communication structure of a display panel according to a thirteenth embodiment of a first aspect of the present application. 
         FIG.  16    is a schematic structural view of a wireless communication structure of a display panel according to a fourteenth embodiment of a first aspect of the present application. 
         FIG.  17    is a partial magnified structural view of  FIG.  11    in a fifteenth embodiment. 
         FIG.  18    is a schematic structural view of a wireless communication structure of a display panel according to a sixteenth embodiment of a first aspect of the present application. 
         FIG.  19    is a schematic structural view of a wireless communication structure of a display panel according to a seventeenth embodiment of a first aspect of the present application. 
         FIG.  20    is a schematic structural view of a wireless communication structure of a display panel according to an eighteenth embodiment of a first aspect of the present application. 
         FIG.  21    is a schematic structural view of a display panel according to a nineteenth embodiment of a first aspect of the present application. 
         FIG.  22    is a schematic structural view of a display panel according to a twentieth embodiment of a first aspect of the present application. 
         FIG.  23    is a schematic structural view of a display panel according to a twenty first embodiment of a first aspect of the present application. 
         FIG.  24    is a schematic structural view of a display panel according to a twenty second embodiment of a first aspect of the present application. 
         FIG.  25    is a partial magnified structural view of  FIG.  13    in a twenty third embodiment. 
         FIG.  26    is a schematic structural view of a wireless communication structure of a display panel according to a twenty fourth embodiment of a first aspect of the present application. 
         FIG.  27    is a schematic structural view of a wireless communication structure of a display panel according to a twenty fifth embodiment of a first aspect of the present application. 
         FIG.  28    is a schematic structural view of a wireless communication structure of a display panel according to a twenty sixth embodiment of a first aspect of the present application. 
         FIG.  29    is a schematic structural view of a wireless communication structure of a display panel according to a twenty seventh embodiment of a first aspect of the present application. 
         FIG.  30    is a partial cross-sectional view of  FIG.  29   . 
         FIG.  31    is a schematic structural view of a wireless communication structure of a display panel according to a twenty eighth embodiment of a first aspect of the present application. 
         FIG.  32    is a partial cross-sectional view of  FIG.  31   . 
         FIG.  33    is a schematic structural view of a wireless communication structure of a display panel according to a twenty ninth embodiment of a first aspect of the present application. 
         FIG.  34    is a schematic structural view of a wireless communication structure of a display panel according to a thirtieth embodiment of a first aspect of the present application. 
         FIG.  35    is a schematic structural view of a wireless communication structure of a display panel according to a thirty first embodiment of a first aspect of the present application. 
         FIG.  36    is a schematic structural view of a wireless communication structure of a display panel according to a thirty second embodiment of a first aspect of the present application. 
         FIG.  37    is a schematic structural view of a wireless communication structure of a display panel according to a thirty third embodiment of a first aspect of the present application. 
         FIG.  38    is a schematic structural view of a wireless communication structure of a display panel according to a thirty fourth embodiment of a first aspect of the present application. 
         FIG.  39    is a schematic structural view of a wireless communication structure of a display panel according to a thirty fifth embodiment of a first aspect of the present application. 
         FIG.  40    is a partial cross-sectional view of  FIG.  14   . 
         FIG.  41    is a schematic structural view of a wireless communication device according to a first embodiment of a second aspect of the present application. 
         FIG.  42    is a schematic structural view of a wireless communication device according to a second embodiment of a second aspect of the present application. 
         FIG.  43    is a schematic structural view of a wireless communication device according to a third embodiment of a second aspect of the present application. 
         FIG.  44    is a schematic structural view of a wireless communication device according to a fourth embodiment of a second aspect of the present application. 
         FIG.  45    is a schematic structural view of a wireless communication device according to a fifth embodiment of a second aspect of the present application. 
         FIG.  46    is a schematic structural view of a wireless communication device according to a sixth embodiment of a second aspect of the present application. 
         FIG.  47    is a schematic structural view of a wireless communication device according to a seventh embodiment of a second aspect of the present application. 
         FIG.  48    is a schematic structural view of a wireless communication device in the related art. 
     
    
    
     DETAILED DESCRIPTION 
     Features and exemplary embodiments of various aspects of the present application are described in detail below. In the following detailed description, numerous specific details are presented to provide a thorough understanding of the present application. However, it will be apparent for those skilled in the art that the present application may be implemented without some of these specific details. The following description of the embodiments is merely for providing a better understanding of the present application by illustrating examples of the present application. In the drawings and the following description, at least some of well know structures and techniques have not been shown to avoid unnecessary obscurity of the present application. In addition, size of some structures may be exaggerates for clarity. Furthermore, the features, structures, or characteristics described below may be combined in one or more embodiments by any suitable manner. 
     In the description of the present application, it should be noted that, unless otherwise specified, directional or positional relationships indicated by terms “upper”, “lower”, “left”, “right”, “inner”, “outer” and the like are merely used for the ease and simplicity of description of the present application, and are not used for indicating or implying that apparatuses or elements modified by these terms must be positioned in the indicated directions, or configured or operating in the indicated directions, and therefore should not be interpreted as a limitation on the present application. In addition, terms “first”, “second”, and the like are merely used for the purpose of description and should not be interpreted as indicating or implying relative importance. 
     The directional terms appearing in the following description are referred to directions shown in the drawings and do not limit the specific structures of the present application. In the description of the present application, it should be further noted that, unless otherwise clearly specified and limited, the terms “mounted” and “connected” should be understood in a broad sense, for example, a connection may refer to a fixed, a detachable or an integrated connection (which may be a direct connection or a indirect connection). For those with ordinary skills in the art, the specific meaning of the terms mentioned above in the present application can be understood in accordance with specific contexts. 
     With the development of display technology and wireless communication technology, screen-to-body ratios of display apparatuses in devices with wireless communication functions are continually increasing, and types and numbers of transmission modules used to achieve wireless communication in the devices are also increasing. For example, in the era of 5th generation mobile communications, spectrum of wireless communication covers both millimeter waves and non-millimeter waves. Therefore, a wireless communication device with 5G mm-wave functions, such as a mobile phone, not only may have provided therein a first type antenna that can be used for millimeter waves, but also usually may have provided therein wireless communication modules that can be used for non-millimeter waves (such as those used for 5G, 4G, WLAN (wireless local area network), BT (Bluetooth), GNSS (global navigation satellite system), etc.). At the same time, NFC (Near Field Communication) is also becoming increasingly popular, and therefore, more and more mobile phones also have NFC coils provided therein. 
     However, the higher the screen-to-body ratio of the display apparatus in the wireless communication device is, the more liable it is to limit the positions where the wireless communication modules can be positioned, and the more liable it is to block the wireless communication modules when the device is being used (for example, the device is being held by hand or placed on a metal table), which results in significant degradation of antenna performance and affects user&#39;s wireless experience. In view of the above, it is contemplated that the wireless communication modules are integrated in the display apparatus of the wireless communication device, for example, in a design manner of Antenna-on-Display (AoD), which has become a possible direction of development for antenna designs in wireless communication devices. 
     In some embodiments, with reference to  FIG.  48   , take the wireless communication device  1  being a mobile phone as an example, wireless communication modules integrated in a display apparatus  10  of a mobile phone may include a 5G millimeter-wave antenna  01 , a WiFi/BT antenna  021 , a Long Term Evolution (LTE) antenna  022 , an NFC coil  023 , and a 5G non-millimeter-wave antenna  024 . Typically, the 5G millimeter-wave antenna  01 , the WiFi/BT antenna  021 , the LTE antenna  022 , the NFC coil  023  and the 5G non-millimeter-wave antenna  024  are arranged in the display apparatus  10  independently from one another. However, an internal space of the display apparatus  10  is limited, and how to arrange the wireless communication modules in the limited space and ensure desired optical and touch effects of the display panel has become a technical problem to be solved urgently. 
     In order to solve the problem above, the present application is presented. For a better understanding of the present application, the wireless communication structure, the display panel and the wireless communication device of embodiments of the present application are described in detail below with reference to  FIG.  1    to  FIG.  47   . 
     Reference is made to  FIG.  1   , which is a schematic structural view of a display panel according to a first embodiment of the present application. 
     As shown in  FIG.  1   , the display panel provided by an embodiment of the present application includes a wireless communication structure. The wireless communication structure may be configured in various manners. As shown in  FIG.  1   , the wireless communication structure provided by an embodiment of the first aspect of the present application includes a loop structure  100  and antenna  200 . The loop structure  100  includes a first connection end  110 , a second connection end  120 , and a coil body  130 . At least a part of the coil body  130  is connected between the first connection end  110  and the second connection end  120 . The antenna  200  is connected to the coil body  130 . 
     In the wireless communication structure provided by an embodiment of the present application, the wireless communication structure includes the loop structure  100  and the antenna  200 . The loop structure  100  includes the first connection end  110 , the second connection end  120  and the coil body  130 , and is configured to transmit and/or receive wireless signals on the coil body  130  through the first connection end  110  and the second connection end  120 . Since the antenna  200  is connected to the coil body  130  of the loop structure  100 , at least a part of the coil body  130  may transmit and/or receive wireless signals of the loop structure  100  and wireless signals of the antenna  200  at the same time. An overall area occupied by the loop structure  100  and the antenna  200  can be reduced, so that two or more antennas  200  may be arranged in a limited space, and thus the influence on the optical performance of the display screen can be reduced, so that a desired optical performance of the display screen is ensured. Besides, a patterning process of the antenna  200  is simplified, thereby improving the manufacturing efficiency of the antenna  200  and reducing the manufacturing cost. 
     Optionally, the antenna includes a feeding portion and a radiating portion, either of which may be connected to the coil body  130 . Alternatively, both the feeding portion and the radiating portion are connected to the coil body  130 . In an embodiment of the present application, the radiating portion of the antenna  200  being connected to the coil body  130  is taken as an example for illustration. 
     As an optional embodiment, with further reference to  FIG.  1   , when the wireless communication structure is used in a display panel, the display panel further includes a touch layer  300  including mesh-shaped metal wires, which are illustrated as light-colored mesh-shaped lines in  FIG.  1   . The touch layer  300  includes a touch structure for realizing a touch function of the display panel. The loop structure  100  and the antenna  200  are arranged in the touch layer  300 , which means the touch structure, the loop structure  100  and the antenna  200  are arranged on a same layer. When the loop structure  100  and the antenna  200  are arranged in the touch layer  300 , at least one loop structure  100  is connected to the antenna  200 . This can reduce the number of cutting points of the mesh-shaped metal wires, thus improving degradation of touch performance and experience due to expansion of touch blind areas caused by the disposition of the antenna  200  in the touch layer  300 , that is, a desired touch performance of the display screen can be ensured. Additionally, at least one loop structure  100  is connected to the antenna  200 , which can reduce the number of cutting points of the mesh-shaped metal wires, so that patterns formed by mesh-shaped metal wires in different areas tend to be uniform, which can also improve optical effect of the display panel. 
     Optionally, the loop structure  100  is a looped coil, which can be configured in various manners. For example, the loop structure  100  includes at least one of a NFC coil, a wireless power charging (WPC) coil, a LTE coil, a global positioning GNSS coil, a WLAN coil, a frequency modulation (FM) coil, and the like. The NFC coil, the WPC coil, the LTE coil, the GNSS coil, the WLAN coil, the FM coil and the like may each be configured as a looped coil, to facilitate the connection of the antenna  200  therewith. 
     Optionally, the loop structure  100  includes at least one of the NFC coil and the WPC coil. Because a size of the loop structure  100  including the NFC coil and/or the WPC coil is generally large. For example, the loop structure  100  including the NFC coil and/or the WPC coil are arranged close to and around edges of the display panel to facilitate the connection of the antenna  200  with the loop structure 100  including the NFC coil and/or the WPC coil, and the antenna  200  is able to be arranged closer to the edges of the display panel. As such, the degradation of the optical and touch effects of the display panel caused by the antenna  200  can be insignificant, and a feeding path of the antenna  200  can be short, so the feeding loss can be low and a desired radiation performance of antenna  200  is achieved. 
     Optionally, the loop structure  100  is configured to transmit and/or receive wireless signals in non-millimeter-wave band. Transmitting and/or receiving wireless signals in non-millimeter-wave band refers to receiving and/or sending wireless signals in non-millimeter-wave band, that is, to transmit and/or receive means to receive and/or send herein. 
     For example, the loop structure  100  is a coupled coil configured to transmit the wireless signals in the non-millimeter-wave band through coupling. The loop structure  100  is configured to transmit signals through coupling, and the antenna  200  is configured to transmit signals through radiation, that is, the wireless communication structure may be configured to implement two different manners of wireless signal transmission. 
     Optionally, the loop structure  100  and the antenna  200  are each configured for wireless communication and have a corresponding frequency band. 
     For example, the loop structure  100  is the NFC coil, of which a communication frequency band is, for example, 13.56 MHz. Alternatively, the loop structure  100  is the WPC coil, and a communication frequency band of a commonly used WPC coil is, for example, higher than or equal to 100 kHz. The NFC coil and the WPC coil are coupled coils used in non-mobile wireless communication (because currently the NFC coil and the WPC coil need to be geologically referenced to a counterpart communication apparatus). 
     The loop structure  100  may include a coupling portion and a feeding portion. For example, the coil body  130  is the coupling portion of the loop structure  100 . The first connection end  110  and the second connection end  120  are the feeding portion of the loop structure  100 . The loop structure  100  may be configured for short-distance point-to-point wireless communication. 
     Optionally, the loop structure  100  may further include the FM coil. A common FM frequency band is 87 MHz to 108 MHz, and the FM coil is applied to long-distance non-mobile wireless communication. 
     There are various manners to set the number of antennas  200 . As shown in  FIG.  1   , the number of antennas  200  may be one. 
     Alternatively, reference is made to  FIG.  2   , which is a schematic structural view of a display panel according to a second embodiment of the first aspect. The structure of the embodiment illustrated in  FIG.  2    is partially the same as the structure of the embodiment illustrated in  FIG.  1   , which will not be described in detail here, and differences therebetween will be described below. In addition, the following description herein will be directed to differences between various embodiments associated with respective drawings. 
     As shown in  FIG.  2   , a plurality of antennas  200  may be included, and the plurality of antennas  200  are arranged in a spaced manner on an extending path of the coil body  130 . 
     The antenna  200  may be arranged in various manners. In some optional embodiments, with further reference to  FIG.  1    and  FIG.  2   , the antenna  200  includes a non-millimeter-wave antenna  202 . The non-millimeter-wave antenna  202  includes a non-millimeter-wave radiating portion  2021  and a non-millimeter-wave feeding portion  2022 . The non-millimeter-wave radiating portion  2021  is connected to the coil body  130 . 
     In these optional embodiments, the non-millimeter-wave radiating portion  2021  is connected to the coil body  130 , and thus the non-millimeter-wave radiating portion  2021  and the coil body  130  are connected to each other, so that the number of cutting points of the mesh-shaped metal wires can be reduced. This can ensure a desired optical performance of the display screen and simplify patterning process of the antenna  200 , thereby improving the manufacturing efficiency of the antenna  200  and reducing the manufacturing cost. 
     For example, frequencies of non-millimeter waves commonly used in mobile wireless communication are higher than 410 MHz and lower than 7.125 GHz, that is, the non-millimeter-wave antenna  202  refers to an antenna configured to transmit and/or receive wireless signals having frequencies higher than 410 MHz and lower than 7.125 GHz. The coil body  130  is configured to transmit wireless signals through coupling, and frequencies of wireless signals transmitted by the coil body  130  through coupling may be lower than 410 MHz. 
     Optionally, the non-millimeter-wave antenna  202  is an antenna configured for mobile wireless communication. The non-millimeter-wave antenna  202  herein generally refers to the non-millimeter-wave antenna  202  configured for mobile wireless communication and the non-millimeter-wave antenna  202  configured for mobile communication (including a cellular antenna, a WLAN antenna, a Bluetooth antenna, a GNSS antenna and the like for 5G and the previous generations). 
     Optionally, the non-millimeter-wave radiating portion  2021  may have various shapes. For example, as shown in  FIG.  1    and  FIG.  2   , the non-millimeter-wave radiating portion  2021  is rectangular. In other embodiments, as shown in  FIG.  3   , the non-millimeter-wave radiating portion  2021  may be special shaped. When the non-millimeter-wave radiating portion is connected to the coil body  130 , in order to control the influence of the loop structure  100  on the non-millimeter-wave antenna  202 , various configurations may be used to block non-millimeter-wave currents on the loop structure  100 . 
     An impedance of a conductor includes a resistance and a reactance. 
     Resistance=ρ (L/A), where p is a resistivity of the conductor, L is a length of the conductor, and A is a current distribution area corresponding to currents applied to the conductor. Given that intrinsic electrical and structural size parameters of the conductor are of constant values, when a signal frequency increases, a distribution area of a current in the conductor will decrease due to the skin effect (that is, the higher the frequency of the signal is, the more likely it is to concentrate the corresponding current on a thin layer near a surface of the conductor), that is, A will decrease, resulting in an increase in the resistance. 
     Since reactance=inductive reactance—capacitive reactance, the reactance and the inductive reactance are positively correlated. Inductive reactance=jwL, where w is an angular frequency and w=2πf, where f is a frequency, and L is an inductance; therefore, when the signal frequency increases, the inductive reactance increases. In addition, due to the skin effect mentioned above, an inductance corresponding to the high-frequency signal will also increase, which further increases the inductive reactance. 
     To sum up, when a frequency of a signal increases, flow of its corresponding current in the conductor will be blocked. Therefore, under same conductor conditions, a current corresponding to a high-frequency signal is more likely to be blocked than a current corresponding to a low-frequency signal. In addition, when a width of the conductor becomes smaller, the inductance of the conductor will increase, and therefore, the inductive reactance will further increase, so that flow of the current corresponding to the high-frequency signal will be further blocked. That is, by adjusting the size of the conductor, currents corresponding to different frequency signals can be desirably blocked or allowed to pass through. 
     When the loop structure  100  includes the NFC coil, a frequency band of wireless signals in millimeter-wave band transmitted and/or received by the millimeter-wave antenna unit  210  is higher than the NFC frequency band. Therefore, under same conductor conditions, the millimeter-wave currents corresponding to the frequencies of the wireless signals in the millimeter-wave band are more liable to be blocked and less liable to be allowed to pass through compared to the currents corresponding to the NFC frequency band. Therefore, by adjusting the size of the coil body  130 , the millimeter-wave currents can be desirably blocked and the currents corresponding to the NFC frequency band can be desirably allowed to pass through. 
     When the loop structure  100  includes the NFC coil and the antenna  200  includes the non-millimeter-wave antenna  202 , the frequencies of the wireless signals in the non-millimeter-wave band transmitted and/or received by the non-millimeter-wave antenna  202  are higher than the NFC frequency band. Therefore, under same conductor conditions, the non-millimeter-wave currents corresponding to the frequencies of the wireless signals in the non-millimeter-wave band are more liable to be blocked and less liable to be allowed to pass through compared to the currents corresponding to the NFC frequency band. Therefore, by adjusting the size of the coil body  130 , the non-millimeter-wave currents can be desirably blocked and the currents corresponding to the NFC frequency band can be desirably allowed to pass through. 
     In some embodiments, as shown in  FIG.  1    to  FIG.  3   , a width of at least a part of the non-millimeter-wave radiating portion  2021  is different from a line width of at least a part of the coil body  130 , so that at least a part of the coil body  130  can allow the wireless signal currents transmitted and/or received by the loop structure  100  to pass through and block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . The non-millimeter-wave currents refer to currents of the frequencies corresponding to wireless signals in non-millimeter-wave band transmitted and/or received by the non-millimeter-wave antenna  202 , and wireless signal currents transmitted and/or received by the loop structure  100  refer to currents corresponding to the frequencies of wireless signals transmitted and/or received by the loop structure  100 . 
     In these optional embodiments, the line width of at least a part of the non-millimeter-wave radiating portion  2021  is different from the line width of at least a part of the coil body  130 , so that the currents for transmitting the signals of the frequency band corresponding to the non-millimeter-wave antenna  202  can pass through the non-millimeter-wave radiating portion  2021 , but cannot pass through the coil body  130 . Therefore, signal currents of the non-millimeter-wave antenna  202  and the loop structure  100  can be isolated from each other. 
     That is, in these embodiments, by appropriately configuring the line width of the coil body  130  and the line width of the non-millimeter-wave radiating portion  2021 , the currents corresponding to the frequencies of wireless signals transmitted and/or received by the non-millimeter-wave antenna  202  and the loop structure  100  can be isolated from each other. 
     Optionally, a line width of at least a part of the coil body  130  is not greater than a line width of the non-millimeter-wave radiating portion  2021 . 
     In these optional embodiments, because the line width of at least a part of the coil body  130  is relatively small, at least the part of the coil body  130  has a relatively high impedance. Therefore, at least the part of the coil body  130  has a desired filtering and blocking effect on the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . Therefore, in an embodiment of the present application, by configuring the line width of at least a part of the coil body  130  as being relatively small, currents of wireless signals transmitted and/or received by the non-millimeter-wave antenna  202  and the loop structure  100  can be isolated from each other. 
     In some other optional embodiments, as shown in  FIG.  4   , a first blocking portion  141  is arranged on the coil body  130 . The first blocking portion  141  is configured to allow the wireless signal currents transmitted and/or received by the loop structure  100  to pass through, and block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . 
     In an embodiment of the present application, by providing the coil body  130  with the first blocking portion  141 , the wireless signal currents transmitted and/or received by the loop structure  100  can pass through the first blocking portion  141 , and the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202  are blocked by the first blocking portion  141 , which can achieve the isolation between the wireless signal currents transmitted and/or received by the non-millimeter-wave antenna  202  and the loop structure  100 . 
     In the embodiments mentioned above, when the first blocking portion  141  is configured to achieve the isolation between the currents transmitted and/or received by the non-millimeter-wave antenna  202  and the loop structure  100 , optionally, as shown in  FIG.  4   , the number of the first blocking portion  141  may be one. One first blocking portion  141  may be arranged on a side of the non-millimeter-wave antenna  202  close to or away from the first connection end  110 . 
     For example, as shown in  FIG.  4   , one first blocking portion  141  may be arranged between at least one non-millimeter-wave antenna  202  and the second connection end  120 . In these optional embodiments, the currents of the non-millimeter-wave feeding portion  2022  may flow to the first blocking portion  141  or to the first connection end  110 , so that the non-millimeter-wave antenna  202  can transmit and/or receive non-millimeter-wave wireless signals in various frequency bands. 
     Alternatively, in some other embodiments, as shown in  FIG.  5   , the number of the first blocking portions  141  may be two or more, and two or more first blocking portions  141  are arranged on both sides of the non-millimeter-wave antenna  202 . 
     In these optional embodiments, two or more first blocking portions  141  include a first blocking portion  141   a  positioned on a side of the non-millimeter-wave antenna  202  close to the first connection end  110  and a first blocking portion  141   b  positioned on a side of the non-millimeter-wave antenna  202  away from the first connection end  110 . The currents flowing out of the non-millimeter-wave feeding portion  2022  can flow to the first blocking portion  141   a  and the first blocking portion  141   b , so that the non-millimeter-wave antenna  202  can transmit and/or receive the wireless signals in various frequency bands. In addition, by appropriately arranging the positions of the first blocking portion  141   a  and the first blocking portion  141   b , the frequency band corresponding to the non-millimeter-wave antenna  202  can be controlled, so as to achieve the purpose of precisely controlling the frequency bands of wireless signals received by the non-millimeter-wave antenna  202 . 
     In some optional embodiments, as shown in  FIG.  6   , the number of the non-millimeter-wave antennas  202  is two or more, and two or more non-millimeter-wave antennas  202  are arranged in a spaced manner on an extending path of the coil body  130 . 
     When the number of the non-millimeter-wave antennas  202  is two or more, the number of the first blocking portions  141  may be one, two or more. The first blocking portion  141  may be arranged between the non-millimeter-wave antenna  202  and the first connection end  110  and/or between the non-millimeter-wave antenna  202  and the second connection end  120 , the first blocking portion  141  may also be arranged between non-millimeter-wave radiating portions  2021  of two adjacent non-millimeter-wave antennas  202 . 
     Optionally, in order to achieve the isolation of the wireless signal currents transmitted and/or received by the non-millimeter-wave antenna  202  and the loop structure  100 , the line width of the first blocking portion  141  is different from the line width of the coil body  130 , so that the wireless signal currents transmitted and/or received by the loop structure  100  can pass through the first blocking portion  141 , but the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202  cannot pass through the first blocking portion  141 . 
     Optionally, as shown in  FIG.  7    and  FIG.  8   , the non-millimeter-wave radiating portion  2021  includes a non-millimeter-wave wire, and the line width of the first blocking portion  141  is smaller than the width of the non-millimeter-wave wire in the non-millimeter-wave radiating portion  2021 , so that the first blocking portion  141  can block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . In these optional embodiments, the line width of the first blocking portion  141  is relatively small, so that the first blocking portion  141  has a relatively high impedance. Therefore, the first blocking portion  141  has a desired filtering and blocking effect on the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . 
     With reference to  FIG.  9   , in some optional embodiments, the antenna  200  further includes a millimeter-wave antenna unit  210  connected to the coil body  130 . 
     In these optional embodiments, the millimeter-wave antenna unit  210  is connected to the coil body  130 , and the millimeter-wave antenna unit  210  and the coil body  130  are connected to each other. This can ensure a desired optical performance of the display screen and simplify patterning process of the antenna  200 , thereby improving the manufacturing efficiency of the antenna  200  and reducing the manufacturing cost. 
     When the antenna  200  and the loop structure  100  are arranged in the touch layer  300 , the millimeter-wave antenna unit  210  and the coil body  130  are connected to each other, which can reduce the cutting points of the mesh-shaped metal wiring and ensure a desired touch effect of the touch layer  300  at the same time. 
     Optionally, the millimeter-wave antenna unit  210  may have various shapes, for example, the shape of the millimeter-wave antenna unit  210  may be a square, a diamond, or the like. 
     Optionally, with reference to  FIG.  10   , two or more millimeter-wave-antenna units  210  form a millimeter-wave antenna array  201  in combination. In an embodiment of the present application, the number of millimeter-wave antenna units  210  is two or more, and two or more millimeter-wave antenna units  210  are arranged adjacently or in an array to form the millimeter-wave antenna array  201 , which can improve the antenna gain and compensate for the large radiation path loss, and can achieve the effect of beam scanning to cover a wide space to reduce the wireless communication blind areas and achieve a desired user wireless experience. 
     Optionally, transmission frequencies of the millimeter-wave antenna array  201  are different form the transmission frequencies of non-millimeter-wave antenna  202 . For example, frequencies of millimeter waves commonly used in the mobile wireless communication are higher than 24.25 GHz, that is, the millimeter-wave antenna array  201  refers to an antenna array that transmits and/or receives wireless signals with frequencies higher than 24.25 GHz. 
     Optionally, the millimeter-wave antenna array  201  and the non-millimeter-wave antenna  202  are antennas configured for mobile wireless communication. 
     When the antenna  200  of the wireless communication structure includes the millimeter-wave antenna array  201  and the non-millimeter-wave antennas  202 , the millimeter-wave antenna array  201  and the non-millimeter-wave antennas  202  may be arranged in various manners. 
     Optionally, the coil body  130  includes a first connection segment  131  and a second connection segment  132 . The first connection segment  131  is connected between the first connection end  110  and the antenna  200 . The second connection segment  132  is connected between the second connection end  120  and the antenna  200 . When two or more millimeter-wave antenna units  210  form the millimeter-wave antenna array  201  in combination, the coil body  130  further includes a third connection segment  133 . The third connection segment  133  is connected between two adjacent millimeter-wave antenna units  210  in a same millimeter-wave antenna array  201 . 
     The first connection segment  131 , the second connection segment  132  and the third connection segment  133  may be arranged in various manners. For example, the first connection segment  131  may include one wire, or the first connection segment  131  may include multiple wires arranged side by side, or the first connection segment  131  may include multiple wires arranged side by side and bridge wires connecting the wires arranged side by side. Likewise, the second connection segment  132  and/or the third connection segment  133  may include a wire, or the second connection segment  132  and/or the third connection segment  133  may include multiple wires arranged side by side, or the second connection segment  132  and/or the third connection segment  133  may include multiple wires arranged side by side and bridge wires connecting the wires arranged side by side. 
     In some optional embodiments, as shown in  FIG.  10   , the millimeter-wave antenna unit  210  and the non-millimeter-wave radiating portion  2021  are spaced apart from each other on the extending path of the coil body  130 , to avoid a significant degradation of wireless communication quality because of the antennas being blocked (for example, by a human hand, a human head and metals, etc.) at the same time. This can also increase the spatial coverage of the antenna radiation beams, which reduces wireless communication blind areas. In addition, the mutual negative influences between the millimeter-wave antenna array  201  and the non-millimeter-wave antenna  202  or between multiple non-millimeter-wave antennas can be reduced to improve the quality of wireless communication. 
     When the loop structure  100  includes the NFC coil and the antenna  200  includes non-millimeter-wave antenna  202  and a millimeter-wave antenna array  201 , the frequencies of the millimeter-wave wireless signals transmitted and/or received by the millimeter-wave antenna array  201  are higher than the frequencies of the non-millimeter-wave wireless signals transmitted and/or received by the non-millimeter-wave antenna  202 , and the frequencies of the non-millimeter-wave wireless signals transmitted and/or received by the non-millimeter-wave antenna  202  are higher than the NFC frequency band. Therefore, under same conductor conditions, the millimeter-wave currents corresponding to the frequencies of the millimeter-wave wireless signals are more liable to be blocked and less liable to pass through compared to the currents corresponding to the frequencies of the non-millimeter-wave wireless signals, and the non-millimeter-wave currents corresponding to the frequencies of the non-millimeter-wave wireless signals are more liable to be blocked and less liable to pass through compared to the currents corresponding to the NFC frequency band. Therefore, by adjusting the size of the coil body  130 , the millimeter-wave currents can be desirably blocked and the non-millimeter-wave currents and the currents corresponding to the NFC frequency band can desirably pass through, or, by adjusting the size of the coil body  130 , the millimeter-wave currents and the non-millimeter-wave currents can be desirably blocked, and the currents corresponding to the NFC frequency band can desirably pass through. 
     When the millimeter-wave antenna unit  210  and the non-millimeter-wave radiating portion  2021  are arranged on the coil body  130  in a spaced manner, the currents of wireless signals transmitted and/or received by the millimeter-wave antenna array  201  and the non-millimeter-wave antennas  202  can be isolated through various manners. 
     Optionally, the line width of at least a part of the coil body  130  is not greater than the width of the millimeter-wave antenna unit  210 . That is, the line width of at least a part of the coil body  130  is relatively small and the impedance of at least a part of the coil body  130  is relatively high. The millimeter-wave currents can be desirably blocked, so that the coil body  130  may have a desired filtering and blocking effect on the millimeter-wave currents transmitted and/or received by the millimeter-wave antenna array  201  to ensure a desired performance of the millimeter-wave antenna array  201 . That is, in an embodiment, by appropriately designing the line width of the coil body  130 , the coil body  130  can block the millimeter-wave currents. 
     Optionally, the line width of the first connection segment  131  is not greater than the sum of the line widths of millimeter-wave wires in the millimeter-wave antenna unit  210 . As shown in  FIG.  9    to  FIG.  10   , when the first connection segment  131  extends along a first direction X, the width direction of the first connection segment  131  and the millimeter-wave wire is a second direction Y; and when the first connection segment  131  extends along the second direction Y, the width direction of the first connection segment  131  and the millimeter-wave wire is the first direction X. 
     In an embodiment of the present application, the line width of the first connection segment  131  is relatively small, so that the first connection segment  131  has a relatively high impedance. Therefore, the first connection segment  131  may have a desired filtering and blocking effect on the non-millimeter-wave currents and the millimeter-wave currents. However, the first connection segment  131  has a desired passing effect on the currents of the NFC frequency band. Therefore, in an embodiment of the present application, the currents of the loop structure  100  can desirably pass through the first connection segment  131 , but the non-millimeter-wave currents and the millimeter-wave currents are significantly blocked by the first connection segment  131 . 
     Optionally, the line width of the first connection segment  132  is not greater than the sum of the line widths of the millimeter-wave wires in the millimeter-wave antenna units  210 . As shown in  FIG.  9    to  FIG.  10   , when the second connection segment  132  extends along the first direction X, the width direction of the second connection segment  132  and the millimeter-wave wire is the second direction Y; when the second connection segment  132  extends along the second direction Y, the width direction of the second connection segment  132  and the millimeter-wave wire is the first direction X. 
     As mentioned above, the line width of the second connection segment  132  is relatively small, so that the millimeter-wave currents can be desirably blocked and the non-millimeter-wave currents can desirably pass through, that is, the blocking of the millimeter-wave currents can be desirably achieved by the second connection segment  132 , which can ensure a desired performance of the millimeter-wave antenna array  201  and the millimeter-wave antenna unit  210 , and does not significantly affect other non-millimeter-wave currents and the currents of the NFC frequency band. 
     The number of the third connection segments  133  may be set in various manners. As shown in  FIG.  12   , the third connection segment  133  between two adjacent millimeter-wave antenna units  210  may include one wire. Alternatively, as shown in  FIG.  13   , the third connection segment  133  between two adjacent millimeter-wave antenna units  210  may include two or more wires. 
     Optionally, as shown in  FIG.  12   , when the third connection segment  133  between two adjacent millimeter-wave antenna units  210  include one wire, the line width of one wire in the third connection segments  133  is not greater than the sum of the line widths of the millimeter-wave wires in the millimeter-wave antenna unit  210 . As shown in  FIG.  13   , when the third connection segment  133  between two adjacent millimeter-wave antenna units  210  include two or more wires, the sum of the line widths of two or more wires in the third connection segment  133  is not greater than the sum of the line widths of the millimeter-wave wires in the millimeter-wave antenna unit  210 . As shown in  FIG.  12    and  FIG.  13   , when the first direction X is perpendicular to the second direction Y, the third connection segment  133  extends along the second direction Y, and the width direction of the third connection segment  133  and the millimeter-wave wire is the first direction X. In some other embodiments, when the third connection segment  133  extends along the first direction X, the width direction of the third connection segment  133  and the millimeter-wave wire is the second direction Y. 
     In an embodiment of the present application, the line width of the third connection segment  133  is relatively small, so that the third connection segments  133  have a relatively high impedance. Therefore, the third connection segments  133  may have a desired filtering and blocking effect on the millimeter-wave currents. However, the third connection segment  133  can have a desired passing effect on non-millimeter-wave frequencies of mobile communication in 5G and the previous generations, WLAN or BT and the like, and the currents of the NFC frequency band and the like. The third connection segment  133  may have various shapes, as shown in  FIG.  12    and  FIG.  13   , the shape of the third connection segment  133  may be a straight line, that is, the third connection segment  133  extends along one direction. Alternatively, as shown in  FIG.  14   , the third connection segment  133  may be in the shape of a folded line, that is, the third connection segment  133  extends along a bending path. Alternatively, the third connection segment  133  may be in the shape of an arc. Alternatively, the third connection segment  133  are formed by a combination of at least two of a straight line, a folded line, and an arc. 
     Alternatively, a line width of at least a part of the coil body  130  is not greater than a line width of the non-millimeter-wave radiating portion  2021 . That is, the line width of at least a part of at least one of the first connection segment  131 , the second connection segment  132  and the third connection segments  133  is not greater than the width of the non-millimeter-wave radiating portion  2021 . Optionally, the line width of at least a part of at least one of the first connection segment  131 , the second connection segment  132  and the third connection segments  133  is not greater than the width of the non-millimeter-wave wire in the non-millimeter-wave radiating portion  2021 . 
     For example, the line width of at least a part of the first connection segment  131  is not greater than the width of the non-millimeter-wave radiating portion  2021 . When the non-millimeter-wave radiating portion  2021  is in the shape of block, the non-millimeter-wave radiating portion  2021  can be understood as including one non-millimeter-wave wire. When the non-millimeter-wave radiating portion  2021  include multiple non-millimeter-wave wires, that the line width of at least a part of the first connection segment  131  is not greater than the width of the non-millimeter-wave radiating portion  2021  means that the line width of at least a part of the first connection segment  131  is not greater than the sum of the widths of the multiple non-millimeter-wave wires in the non-millimeter-wave radiating portion  2021 . 
     Optionally, the line widths of the first connection segment  131 , the second connection segment  132  and the third connection segments 133  are each set to be not greater than the line width of the non-millimeter-wave wire. In this way, the non-millimeter-wave currents can be significantly blocked by the first connection segment  131 , the second connection segment  132  and the third connection segment  133 , so that the independence of each non-millimeter-wave radiating portion  2021  in the millimeter-wave antenna array  201  can be desirably ensured, thereby ensuring the performance of the millimeter-wave antenna array  201 . 
     Optionally, at least one of the first connection segment  131 , the second connection segment  132  and the third connection segments  133  can block the non-millimeter-wave currents. At least one of the first connection segment  131 , the second connection segment  132  and the third connection segments  133  can block the millimeter-wave currents. So that neither the non-millimeter-wave currents nor the millimeter-wave currents can pass through at least a part of the coil body  130 . Even when the millimeter-wave antenna array  201  and the non-millimeter-wave radiating portion  2021  of the non-millimeter-wave antenna  202  are both connected to the coil body  130 , the wireless signal currents of the non-millimeter-wave antenna  202  and the millimeter-wave antenna array  201  can be blocked on the loop structure  100 , so that a desired performance of the non-millimeter-wave antenna  202  and the millimeter-wave antenna array  201  can be designed and ensured. 
     In some optional embodiments, with further reference to  FIG.  11   , the millimeter-wave antenna unit  210  and the non-millimeter-wave radiating portion  2021  may be arranged on the coil body  130  in a spaced manner. The first blocking portion  141  are arranged on the coil body  130 , to block the non-millimeter-wave currents and the millimeter-wave currents in the coil body  130 . 
     Optionally, with reference to  FIG.  15   , the number of antennas  200  is two or more, and the first connection segment  131  is connected between one of the antennas  200  (for example, the non-millimeter-wave antenna  202 ) and the first connection end  110 . The second connection segment  132  includes a first sub-segment  132   a  and a second sub-segment  132   b . The first sub-segment  132   a  is connected between two adjacent antennas  200  (for example, the first sub-segment  132   a  is connected between the adjacent non-millimeter-wave antenna  202  and the millimeter-wave antenna array  201 ). The second sub-segment  132   b  is connected between another antenna  200  (for example, the millimeter-wave antenna array  201 ) and the second connection end  120 . The first sub-segment  132   a  is configured to implement the connection between two adjacent antennas  200 , and the second sub-segment  132   b  is configured to implement the connection between the antenna  200  and the second connection end  120 . That is, the second connection segment  132  is divided into multiple segments, and part of the second connection segment  132  (for example, the first sub-segment  132   a ) is configured to implement the connection between two adjacent antennas  200 , and part of the second connection segment  132  (for example, the second sub-segment  132   b ) is configured to implement the connection between the antenna  200  and the second connection end  120 . 
     As shown in  FIG.  15   , the antennas  200  can be divided into three groups. Two of the three groups of antennas  200  are arranged opposite to each other along the first direction X, that is, the two groups of antennas  200  are arranged on edges of two opposite sides of the display panel along the first direction X, respectively (the two groups of antennas  200  are not necessarily on exactly the same position relative to the respective edges of the display panel). Another one of the three groups of antennas  200  are arranged opposite to the first connection end  110  and the second connection end  120  along the second direction Y, so that the first connection end  110 , the second connection end  120  and the three groups of antennas  200  are distributed around the periphery of the display panel in a spaced manner, and the antennas  200  are distributed at different positions of the display panel. When a user uses different gestures to operate the display panel, there can always be at least one antenna  200  in a position that is not blocked by the user, so the stability of the antennas  200  for transmitting and/or receiving the wireless signals can be improved, and a desired user&#39;s wireless experience can be ensured. 
     In some other optional embodiments, as shown in  FIG.  16   , the first connection end  110 , the second connection end  120 , and the antennas  200  may be arranged along the first direction X in a spaced manner. That is the first connection end  110  and the second connection end  120  are arranged by the side of one of the antennas  200 . 
     In still some other embodiments, with further reference to  FIG.  15   , when the antenna  200  of the wireless communication structure include the millimeter-wave antenna unit  210  and the non-millimeter-wave antenna  202 , at least one millimeter-wave antenna unit  210  is reused as at least a part of the non-millimeter-wave radiating portion  2021 . 
     In these optional embodiments, wiring structure of the wireless communication structure can be further simplified, and when the wireless communication structure is arranged in the display panel, the display effect of the display panel can be improved. Additionally, at least one millimeter-wave antenna unit  210  and at least a part of the non-millimeter-wave radiating portion  2021  may be reused as each other, which can reduce the distribution area of the wireless communication structure, so that more antennas  200  can be arranged in a small space. 
     That at least one millimeter-wave antenna unit  210  is reused as at least a part of the non-millimeter-wave radiating portion  2021  may means that one millimeter-wave antenna unit  210  is reused as at least a part of the non-millimeter-wave radiating portion  2021 , or at least two adjacent millimeter-wave antenna units  210  are connected by the third connection segment  133  and reused as at least a part of the non-millimeter-wave radiating portion  2021 . That at least two adjacent millimeter-wave antenna units  210  are connected by the third connection segment  133  and reused as at least a part of the non-millimeter-wave antenna  202  means that at least two adjacent millimeter-wave antenna units  210 , when connected by the third connection segment  133 , can have the function of the non-millimeter-wave radiating portion  2021  and be configured to transmit and/or receive the non-millimeter-wave wireless signals. 
     When at least one millimeter-wave antenna unit  210  is reused at least a part of the non-millimeter-wave radiating portion  2021 , the at least one millimeter-wave antenna unit  210  can be connected to the non-millimeter-wave feeding portion  2022 , for example, the at least one millimeter-wave antenna unit  210  can be connected to the non-millimeter-wave feeding portion  2022  by a part of the coil body  130 . So that the at least two adjacent millimeter-wave antenna units  210  are able to be connected to a radio frequency integrated circuit of the non-millimeter-wave antenna  202 , the function of the non-millimeter-wave antenna  202  can be achieved. 
     When at least two adjacent millimeter-wave antenna units  210  are connected by the third connection segment  133  and reused as at least a part of the non-millimeter-wave radiating portion  2021 , at least two adjacent millimeter-wave antenna units  210  may be connected in series or in parallel with each other and reused as at least a part of the non-millimeter-wave radiating portion  2021 . 
     In these optional embodiments, the reusing of at least a part of the non-millimeter-wave antenna  202 , at least a part of the millimeter-wave antenna array  201  and at least a part of the loop structure  100  can further reduce the area occupied by the various type of antennas  200  and simplify disposition pattern of the various types of antennas  200 . Therefore, the cutting points of mesh-shaped metal wiring can be reduced, and desired display performance and touch performance of the display panel can be ensured. 
     When at least one millimeter-wave antenna unit  210  and at least a part of the non-millimeter-wave radiating portion  2021  are reused as each other, the non-millimeter-wave radiating portion  2021  and the non-millimeter-wave feeding portion  2022  may be connected to each other in various manners. 
     In some optional embodiments, as shown in  FIG.  17   , the non-millimeter-wave radiating portion  2021  includes a first connection wire  2024  connecting the non-millimeter-wave feeding portion  2022  and the millimeter-wave antenna unit  210 , and the first connection wire  2024  is part of the coil body  130 . That is, the non-millimeter-wave feeding portion  2022  and the non-millimeter-wave radiating portion  2021  are connected to each other by using part of the coil body  130 . The first connection wire  2024  may include one or multiple wires. 
     Optionally, the coil body  130  is divided into a first connection segment  131 , a second connection segment  132  and third connection segment  133 . The first connection segment  131  is positioned between the millimeter-wave antenna unit  210  and the first connection end  110 . As shown in  FIG.  17   , when the non-millimeter-wave radiating portion  2021  is positioned on a side of the millimeter-wave antenna unit  210  close to the first connection end  110 , the first connection wire  2024  may be part of the first connection segment  131 . In other embodiments, the second connection segment  132  is positioned between the millimeter-wave antenna unit  210  and the second connection end  120 , when the non-millimeter-wave radiating portion  2021  is positioned on a side of the millimeter-wave antenna unit  210  close to the second connection end  120 , the first connection wire  2024  may be part of the second connection segment  132 . 
     Optionally, as shown in  FIG.  18   , second blocking portions  142  are arranged on the coil body  130  and configured to allowed the wireless signal currents transmitted and/or received by the loop structure  100  and the non-millimeter-wave currents of the wireless signals transmitted and/or received by the non-millimeter-wave antennas  202  to pass through, and block the millimeter-wave currents transmitted and/or received by the millimeter-wave antenna unit  210 , and the line width of the second blocking portion  142  is greater than the line width of the first blocking portion  141 . 
     In these optional embodiments, by arranging the second blocking portion  142  on the coil body  130 , millimeter-wave currents can be desirably blocked, and a desired performance of the millimeter-wave antenna unit  210  can be designed and ensured. 
     In addition, non-millimeter-wave currents can pass through the second blocking portion  142 . As shown in  FIG.  18   , when two millimeter-wave antenna units  210  are reused as at least part of the non-millimeter-wave radiating portion  2021 , a second blocking portion  142  is arranged between two millimeter-wave antenna units  210 , where the second blocking portion  142  does not block non-millimeter-wave currents. 
     The second blocking portion  142  may be configured in various manners. For example, the second blocking portion  142  may be configured by changing the width of at least part of the coil body  130  (that is, by changing the thickness of the coil body  130 ), to achieve the goal of blocking millimeter-wave currents. The user can configure the position, width, length, shape, layer numbers and the number of the second blocking portions  142  according to the frequencies of the wireless signals in the non-millimeter-wave band transmitted and/or received by the non-millimeter-wave antennas  202  and the frequencies of the wireless signals transmitted and/or received by the loop structure  100  in actual use, to block the millimeter-wave currents, thus achieving the design of targeted operating frequency of the millimeter waves. 
     Optionally, as shown in  FIG.  18   , in order to illustrate the positions of the second blocking portions  142  more clearly, the width of the second blocking portion  142  is set to be greater than the width of the coil body  130 . 
     The second blocking portion  142  may be arranged in various positions. Optionally, the number of the second blocking portions  142  is two or more, and two or more second blocking portions  142  are positioned on both sides of the millimeter-wave antenna unit  210  to block millimeter-wave currents, thus implementing the design of the targeted operating frequency of the millimeter waves. 
     Optionally, when two or more millimeter-wave antenna units  210  form the millimeter-wave antenna array  201  in combination, each millimeter-wave antenna unit  210  in the millimeter-wave antenna array  201  is connected to the coil body  130 . 
     When the first blocking portion  141  and the second blocking portion  142  are arranged on the coil body  130 , the first blocking portion  141  and the second blocking portion  142  may be arranged in various positions. For example, the first blocking portion  141  and/or the second blocking portion  142  may be arranged between adjacent millimeter-wave antenna units  210  in the same millimeter-wave antenna array  201 . 
     The first blocking portion  141  and the second blocking portion  142  may be arranged on any one of the first connection segment  131 , the second connection segment  132  and the third connection segment  133 . 
     In some other optional embodiments, as shown in  FIG.  19   , the first blocking portion  141  may be arranged on the third connection segment  133 . Optionally, two or more millimeter-wave antenna units  210  in a same millimeter-wave antenna array  201  are divided into two or more groups, the millimeter-wave antenna units  210  in each group are reused as one non-millimeter-wave antenna  202 , and the first blocking portion  141  is arranged between two adjacent groups of millimeter-wave antenna units  210 . 
     For example, as shown in  FIG.  20   , two or more millimeter-wave antenna units  210  in the millimeter-wave antenna array  201  are reused as the non-millimeter-wave antenna  202  in  FIG.  20   , and the first blocking portion  141  may be arranged between the two or more millimeter-wave antenna units  210  in the millimeter-wave antenna array  201  and other millimeter-wave antenna units  210 . 
     Optionally, in  FIG.  20   , for example, the first blocking portion  141  includes a first sub-blocking portion  141   a , a second sub-blocking portion  141   b , and a third sub-blocking portion  141   c . Currents flowing out of the non-millimeter-wave feeding portion  2022  may flow to the first sub-blocking portion  141   a , or currents flowing out of the non-millimeter-wave feeding portion  2022  may flow to the second sub-blocking portion  141   b.    
     Optionally, the non-millimeter-wave antenna  202  in  FIG.  20    is a non-millimeter-wave antenna  202  corresponding to multiple frequencies, that is, the currents flowing out of the non-millimeter-wave feeding portion  2022  to the first sub-blocking portion  141   a  and the second sub-blocking portion  141   b  are currents with frequencies within the frequencies corresponding to the non-millimeter-wave antenna  202 . 
     Alternatively, the non-millimeter-wave antenna  202  in  FIG.  20    is a non-millimeter-wave antenna  202  covering a single targeted frequency band. For example, when the currents flowing out of the non-millimeter-wave feeding portion  2022  flow to the second sub-blocking portion  141   b , the currents are currents with frequencies within the targeted frequencies corresponding to the non-millimeter-wave antenna  202 . Appropriately designing a wire path between the non-millimeter-wave feeding portion  2022  and the first sub-blocking portion  141   a  may have beneficial effects on the performance of the targeted frequencies corresponding to the non-millimeter-wave antenna  202 . 
     Optionally, two or more millimeter-wave antenna units  210  in the millimeter-wave antenna array  201  may be reused as two non-millimeter-wave radiating portions  2021 , and the first blocking portion  141  can be arranged between the two or more millimeter-wave antenna units  210  of the different millimeter-wave antenna arrays  201 . For example, the millimeter-wave antenna array  201  in  FIG.  20    includes four millimeter-wave antenna units  210 . Two adjacent millimeter-wave antenna units  210  are reused as the non-millimeter-wave radiating portion  2021 , then the first blocking portion  141  may be arranged in the middle of the four millimeter-wave antenna units  210 . That is, two or more millimeter-wave antenna units  210  in a same millimeter-wave antenna array  201  are divided into two groups, and each group includes two millimeter-wave antenna units  210 . 
     In other embodiments, as shown in  FIG.  21   , when at least one millimeter-wave antenna unit  210  is reused as the non-millimeter-wave radiating portion  2021 , the first blocking portion  141  in the millimeter-wave antenna array  201  may be arranged between three millimeter-wave antenna units  210  and another millimeter-wave antenna unit  210 . 
     In other embodiments, as shown in  FIG.  22   , when the number of millimeter-wave antenna units  210  is five, the first blocking portion  141  may be arranged between two millimeter-wave antenna units  210  and the other three millimeter-wave antenna units  210 , or the first blocking portion  141  may be arranged between one millimeter-wave antenna unit  210  and the other four millimeter-wave antenna units  210 . 
     Optionally, the line width of the second blocking portion  142  is not greater than the width of the millimeter-wave antenna unit  210  to block the millimeter-wave currents. The arrangement in which the line width of the second blocking portion  142  is not greater than the width of the millimeter-wave antenna unit  210  is the same as the arrangement in which the first blocking portion  142  is not greater than the width of the millimeter-wave antenna unit  210 , which will not be repeated here. 
     Optionally, as shown in  FIG.  23   , when at least one millimeter-wave antenna unit  220  is reused as at least a part of the non-millimeter-wave radiating portion  2021 , the currents flowing out of the non-millimeter-wave feeding portion  2022  may flow to the non-millimeter-wave radiating portion  2021  formed through reusing the millimeter-wave antenna unit  220 , or the currents flowing out of the non-millimeter-wave feeding portion  2022  may flow to the non-millimeter-wave radiating portion  2021  formed through reusing the non-millimeter-wave antenna unit  220 . That is, the non-millimeter-wave feeding portion  2022  may be connected to two non-millimeter-wave radiating portions  2021 , and at least a part of one of the non-millimeter-wave radiating portions  2021  is formed by reusing at least one millimeter-wave antenna unit  220 . Therefore, the non-millimeter-wave antenna  202  covering multiple frequency bands may be formed, that is, the non-millimeter-wave antenna  202  may transmit and/or receive wireless signals of different frequency bands with different non-millimeter-wave radiating portions  2021 . 
     Optionally, with further reference to  FIG.  23   , the millimeter antenna unit  220  and other parts of the mesh lines may also together form the non-millimeter-wave radiating portion  2021 . Optionally, with further reference to  FIG.  23   , the non-millimeter-wave antenna  202  may further include a grounded portion  2023 . 
     Optionally, when the number of the millimeter-wave antenna arrays  201  is two or more, at least one millimeter-wave antenna unit  210  in one of the millimeter-wave antenna arrays  201  may be reused as part of the non-millimeter-wave antenna  202 . Alternatively, as shown in  FIG.  24   , in two or more millimeter-wave antenna arrays  201 , at least one millimeter-wave antenna unit  210  in each millimeter-wave antenna array  201  may be reused as part of the non-millimeter-wave antenna  202  to increase the number of the non-millimeter-wave antennas  202 . 
     In some other optional embodiments, as shown in  FIG.  25   , the non-millimeter-wave radiating portion  2021  further includes a second connection wire  202  connecting the non-millimeter-wave feeding portion  2022  to the millimeter-wave antenna unit  210 . The line width of a second connection wire  2025  is different from the line width of the coil body  130 , so that the coil body  130  can allow the wireless signal currents transmitted and/or received by the loop structure  100  to pass through and block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . 
     In these optional embodiments, when at least a part of the non-millimeter-wave radiating portion  2021  and at least one millimeter-wave antenna unit  210  are reused as each other, there is no connection between the second connection wire  2025  and the coil body  130 . The non-millimeter-wave wireless signals, the millimeter-wave wireless signals, and the wireless signals transmitted and/or received by the loop structure  100  can be isolated from one another by changing the line width of the coil body  130 . 
     The line width of a second connection wire  2025  is different from the line width of the coil body  130 , so that the coil body  130  can allow the wireless signal currents transmitted and/or received by the loop structure  100  to pass through and block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 , thereby the coil body  130  can block the non-millimeter-wave currents transmitted and/or received by the non-millimeter-wave antenna  202 . 
     In these optional embodiments, when at least a part of the non-millimeter-wave radiating portion  2021  and at least one millimeter-wave antenna unit  210  are reused as each other, and there is no connection between the coil body  130  and the second connection wire  2025  positioned between the non-millimeter-wave radiating portion  2021  and the non-millimeter-wave feeding portion  2022 , the non-millimeter-wave wireless signals and the millimeter-wave wireless signals can be blocked on the coil body  130  by appropriately setting the line width of the coil body  130 . 
     The loop structure  100  and the antenna  200  may be arranged in various positions, as shown in  FIG.  1    to  FIG.  25   , in some optional embodiments, the display panel further includes a touch layer  300 . The touch layer  300  includes the mesh-shaped metal wiring. The loop structure  100  and the antenna  200  are both positioned in the touch layer  300 . In these optional embodiments, the loop structure  100  and the antenna  200  are arranged in the touch layer  300 , so that the loop structure  100  and the antenna  200  can reuse the mesh-shaped metal wiring without adding an additional structure layer, which can reduce the overall thickness of the display panel. In addition, when the at least one loop structure  100  and the antenna  200  are connected to each other, the cutting points of the mesh-shaped metal wiring can be reduced to ensure desired touch effects of the touch layer  300  and the optical effects of the display panel. 
     Optionally, when the antenna  200  is positioned in the touch layer  300 , as shown in  FIG.  12    and  FIG.  13   , the millimeter-wave antenna unit  210  of the millimeter-wave antenna array  201  includes multiple first wires  211  extending along the first direction X and multiple second wires  212  extending along the second direction Y. The first direction X intersects the second direction Y. For example, the first direction X and the second direction Y are perpendicular to each other, or an angle between the first direction X and the second direction Y is 30 degrees, 45 degrees, 60 degrees, etc., as long as the first direction X intersects the second direction Y. 
     In these optional embodiments, the millimeter-wave antenna unit  210  includes the first wires  211  and the second wires  212  intersecting the first wires  211 , that is, the millimeter-wave antenna unit  210  is mesh-shaped, which can increase the distribution area of the millimeter-wave wires in the millimeter-wave antenna unit  210 . This can reduce the impedance of the millimeter-wave antenna unit  210  and reduce energy loss of the millimeter-wave antenna unit  210  and energy reflection caused by impedance mismatch, so that the millimeter-wave antenna unit  210  can desirably transmit and/or receive the wireless signals in the millimeter-wave band. In addition, the millimeter-wave antenna unit  210  may directly use metal wires in the mesh-shaped metal wiring as the first wires  211  and the second wires  212 , which can further simplify the manufacturing of the millimeter-wave antenna unit  210 . 
     The millimeter-wave antenna unit  210  includes the first wires  211  and the second wires  212  intersecting the first wires  211 , that is, the millimeter-wave wires include the first wires  211  and the second wires  212  intersecting the first wires  211 . Optionally, the touch layer  300  may be formed by intersecting multiple first touch wires parallel to the first wires  211  and multiple second touch wires parallel to the second wires  212 . 
     In some other embodiments, as shown in  FIG.  26   , the display panel may further include an antenna layer, and the loop structure  100  and the antenna  200  are positioned in the antenna layer. In these optional embodiments, by adding a non-mesh-shaped antenna layer in the display panel, the impedance of the antenna  200  and the impedance of the loop structure  100  can be reduced, energy loss of the antenna  200  and the loop structure  100  and the energy reflection caused by impedance mismatch can be reduced, thus the performance of the antenna  200  and the loop structure  100  can be improved. Optionally, the loop structure  100  and the antenna  200  in the antenna layer may be manufactured by etching. In other embodiments, the antenna layer may be independently arranged and attached on the display panel. The loop structure  100  and the antenna  200  in the antenna layer may be manufactured by other implementations. 
     When the loop structure  100  and the antenna  200  are arranged in the antenna layer, the millimeter-wave antenna unit  210  can be in the shape of block, so as to increase the distribution area of conductive materials in the millimeter-wave antenna unit  210  and reduce the impedance of the millimeter-wave antenna unit  210 . This can reduce energy loss of the millimeter-wave antenna unit  210  and the energy reflection caused by impedance mismatch, so that the millimeter-wave antenna unit  210  can have a better performance of transmitting and/or receiving the millimeter-wave wireless signals. 
     When the millimeter-wave antenna unit  210  is in the shape of block, the millimeter-wave antenna unit  210  may be in a shape of a square, a diamond, a circle, or the like. 
     Optionally, when the loop structure  100  and the antenna  200  are arranged by adding the antenna layer in the display panel, and the display panel itself includes the touch layer  300 , the antenna layer may be arranged on a side of the touch layer  300  facing the cover plate of the display panel, or the antenna layer is arranged on a side of the touch layer  300  facing away from the cover plate of the display panel. 
     In some optional embodiments, as shown in  FIG.  27   , when the coil body  130  includes multiple coils, the multiple coils may be connected in series, in parallel or coupled with one another. Multiple coil bodies  130  may be arranged as intersecting one another or being spaced apart from one another. 
     Optionally, the multiple coils include an inner coil  101   a  and an outer coil  101   b  surrounding a side of the inner coil  101   a  away from the center of the wireless communication structure. That is, the outer coil  101   b  is arranged closer to the edges of the wireless communication structure. When the coil  101  includes the inner coil  101   a  and the outer coil  101   b , the antenna  200  may be connected to the inner coil  101   a  and/or the outer coil  101   b . For example, as shown in  FIG.  27   , the antenna  200  is connected to the outer coil  101   b , when the wireless communication structure is arranged in the display panel, the antenna  200  is arranged closer to the edges of the display panel, which can reduce the influence of the antenna  200  on the display effect of the display panel. In addition, when the antenna  200  is arranged in the touch layer  300 , since the edges of the display panel are less frequently touched by the user for control, the antenna  200  is arranged close to the edges of the display panel, which can reduce the influence of the antenna  200  on the touch effect of the display panel. 
     When the number of antennas  200  is two, some of the antennas  200  may be connected to the inner coil  101   a , and the other antennas  200  may be connected to the outer coil  101   b . Alternatively, part of an antenna  200  is connected to the inner coil  101   a , and the other part of the same antenna  200  is connected to the outer coil  101   b.    
     In some other embodiments, as shown in  FIGS.  28  and  29   , the antenna  200  further includes millimeter-wave antennas  210  and millimeter-wave feeding portions  220  connected to the respective millimeter-wave antenna units  210 . The millimeter-wave antenna units  210  are connected to the inner coil  101   a . The millimeter-wave antenna units  210 , the inner coil  101   a  and the outer coil  101   b  may be arranged on a same layer, and the outer coil  101   b  and at least a part of the millimeter-wave feeding portion  220  may be arranged on different layers. When the millimeter-wave antenna units  210  are connected to the inner coil  101   a , there are intersections between the millimeter-wave feeding portions  220  and the outer coil  101   b , so that the outer coil  101   b  and at least a part of the millimeter-wave feeding portions  220  being arranged on the different layers can ensure that the millimeter-wave feeding portions  220  and the outer coil  101   b  are insulated from each other. 
     Optionally, the millimeter-wave feeding portion  220  includes a first conductive portion  221 , a second conductive portion  222 , and a bridge segment  223  connected between the first conductive portion  221  and the second conductive portion  222 . The first conductive portion  221 , the second conductive portion  222  and the outer coil  101   b  may be arranged on a same layer. The bridge segment  223  and the outer coil  101   b  may be arranged on the different layers, so as to ensure that the millimeter-wave feeding portion  220  and the outer coil  101   b  are insulated from each other. 
     In some other embodiments, the outer coil  101   b  and the entire millimeter-wave feeding portions  220  may be arranged on the different layers. Optionally, when the loop structure  100  and the antenna  200  are arranged in the touch layer  300 , the touch layer  300  includes first touch electrodes and second touch electrodes arranged on a same layer. When connection portions between adjacent first touch electrodes are arranged on the same layer, adjacent second touch electrodes need to be connected to one another by bridges. The bridges and the second touch electrodes are arranged on the different layers. Optionally, the bridge segment  223  and the bridge of the touch layer  300  may be arranged on a same layer to further reduce the number of layers of the display panel, thus making the display panel lighter and thinner. 
     Optionally, with further reference to  FIG.  27    and  FIG.  28   , the inner coil  101   a  and the outer coil  101   b  are spaced apart from each other and connected in parallel with each other. The inner coil  101   a  and the outer coil  101   b  are arranged independently of each other. Both the inner coil  101   a  and the outer coil  101   b  are connected between the first connection end  110  and the second connection end  120 . Alternatively, as shown in  FIG.  30   , the inner coil  101   a  and the outer coil  101   b  may be an inner coil part and an outer coil part of a helical coil, respectively, that is, the inner coil  101   a  and the outer coil  101   b  are connected in series with each other. When the inner coil  101   a  and the outer coil  101   b  are arranged as a helical coil, at least one of the first connection end  110  and the second connection end  120  overlaps part of the coil, and at least one of the first connection end  110  and the second connection end  120  may be arranged on a layer different from the coil body  130 . 
     As shown in  FIG.  30    and  FIG.  31   , an embodiment of the present application takes that the first connection end  110  and part of the coil body  130  overlap and are arranged on different layers as an example for illustration. When the coil body  130  is configured as multiple turns, the first connection end  110  may overlap the multi-turn coil body  130  in the extending path of the first connection end  110 . As shown in  FIG.  31   , the first connection end  110  overlaps the coil body  130 . Optionally, as shown in  FIG.  31   , the first connection end  110  includes a first segment  111 , a second segment  112  and a spanning segment  113  connecting the first segment  111  and the second segment  112 . The first segment  111  and the second segment  112  are positioned on both sides of the coil body  130 , respectively. The spanning segment  113  and the coil body  130  are arranged on the different layers. An insulation layer is arranged between the spanning segment  113  and the coil body  130 . Optionally, when the loop structure  100  is arranged in the touch layer  300 , the spanning segment  113  and the bridges connecting the touch electrodes may be arranged on a same layer. 
     Optionally, as shown in  FIG.  32   , the multiple coils include a first coil  101   e  and a second coil  101   f . The first coil  101   e  and the second coil  101   f  are both connected between the first connection end  110  and the second connection end  120 . Part of the first circle  101   e  is positioned on a side of the second coil  101   f  away from the center of the wireless communication structure, and part of the second coil  101   f  is positioned on a side of the first coil  101   e  away from the center of the wireless communication structure. The antenna  200  may be connected to the first coil  101   e  and/or the second coil  101   f.    
     As shown in  FIG.  32   , a top portion of the first coil  101   e  is positioned inside a top portion of the second coil  101   f , and a side portion of the first coil  101   e  is positioned outside a side portion of the second coil  101   f . Lengths of the first coil  101   e  and the second coil  101   f  can be made similar or the same, so that currents in a same frequency band can flow on the first coil  101   e  and the second coil  101   f.    
     In some optional embodiments, as shown in  FIG.  33   , the coil body  130  includes multiple coils. The multiple coils include a coupled coil  101   c  and a direct-fed coil  101   d . The direct-fed coil  101   d  is connected between the first connection end  110  and the second connection end  120 . The coupled coil  101   c  is connected to the direct-fed coil  101   d  through coupling, which means that there is no direct connection between the coupled coil  101   c  and other parts of the coil body  130  and the coupled coil  101   c  is configured to generate signals by coupling with the direct-fed coil  101   d.    
     When the coil body  130  includes the coupled coil  101   c  and the direct-fed coil  101   d , the antenna  200  may be connected to the coupled coil  101   c  and/or the direct-fed coil  101   d . For example, as shown in  FIG.  33   , the coupled coil  101   c  is positioned on a side of the direct-fed coil  101   d  away from the center of the wireless communication structure, and the antenna  200  is connected to the coupled coil  101   c . In these optional embodiments, when the wireless communication structure is arranged in the display panel, the coupled coil  101   c  is positioned on a side of the direct-fed coil  101   d  close to the edges of the display panel, and the antenna  200  is connected to the coupled coil  101   c , so that the antenna  200  is arranged closer to the edges of the display panel. For example, when the antenna  200  is arranged in the touch layer  300 , the influence of the antenna  200  on the touch effect of the touch layer  300  can be reduced. In addition, the antenna  200  is arranged close to the edges of the display panel instead of close to the center of the display panel, which can also reduce the influence of the antenna  200  on the display effect of the display panel. 
     In other optional embodiments, as shown in  FIG.  34   , the direct-fed coil  101   d  is positioned on a side of the coupled coil  101   c  away from the center of the wireless communication structure, and the antenna  200  is connected to the direct-fed coil  101   d . When the wireless communication structure is arranged in the display panel, the antenna  200  is arranged closer to the edges of the display panel. In addition, in an embodiment of the present application, by providing the coupled coil  101   c , the performance of transmitting and/or receiving the wireless signals of the loop structure  100  can be further improved. For example, when the loop structure  100  is the NFC coil, the coupled coil  101   c  can enhance the performance of transmitting and/or receiving the wireless signals of the NFC coil. 
     In some optional embodiments, as shown in  FIG.  35   , the display panel includes a first area M and a second area N surrounding the first area M. The loop structure  100  is positioned in the second area N. The second area N surrounds the first area M, so that the second area N is arranged closer to the edges of the display panel. The loop structure  100  and the antenna  200  are both positioned in the second area N, which can reduce the influence of the loop structure  100  and the antenna  200  on the display effect of the display panel. When the loop structure  100  and the antenna  200  are arranged in the touch layer  300 , the influence of the loop structure  100  and the antenna  200  on the touch effect can also be reduced. Optionally, the antenna  200  may be positioned in the second area N, or the antenna  200  may be partially arranged in the first area M. 
     The second area N may be configured in various manners. For example, the second area N may include a display area; and/or the second area N is a non-display area. When the second area N includes a non-display area, the loop structure  100  and the antenna  200  are positioned in the non-display area, which can desirably reduce the influence of the loop structure  100  on the display effect and the touch effect. The loop structure  100  may be arranged in the first area M in various manners. For example, as shown in  FIG.  35   , the loop structure  100  is arranged in the second area N and around the first area M, which can increase an extension length of the loop structure  100  and increase the extension length of the coil body  130  of the loop structure  100 , so as to implement a designed target frequency band and enhance the wireless performance of the frequency band. 
     Optionally, as shown in  FIG.  35   , the first connecting end  110  and the second connecting end  120  are arranged close to each other. The coil body  130  extends around the first area M from the first connecting end  110  and then is connected to the second connecting end  120 . The distance between the first connecting end  110  and the second connecting end  120  is small, which not only facilitates the integration of a connector for transmitting signals from/to the first connecting end  110  and a connector for transmitting signals from/to the second connecting end  120 , but also increases the extension length of the coil body  130  to implement the designed target frequency band, thereby enhancing the wireless performance of the frequency band. 
     In some embodiments, as shown in  FIG.  36   , the coil body  130  extends along a winding path. A same coil body  130  includes a first extension segment  130   a  and a second extension segment  130   b  that overlap each other in a direction approaching the edges of the wireless communication structure. In these optional embodiments, the coil body  130  extends along the winding path, and one part overlaps another part of the coil body  130  in the direction approaching the edges of the wireless communication structure, which can increase the extension length of the coil body  130  to implement the designed target frequency band, and improve the wireless performance of the coil body  130 . 
     Optionally, the antenna  200  is connected to the second extension segment  130   b . When the wireless communication structure is arranged in the display panel, the second extension segment  130   b  is closer to the edges of the display panel than the first extension segment  130   a . When the antenna  200  is connected to the second extension segment  130   b , the antenna  200  is closer to the edges of the display panel, which can reduce the influence of the antenna  200  on the touch effect and display effect of the display panel. 
     Optionally, as shown in  FIG.  37   , when the coil body  130  includes the inner coil  101   a  and the outer coil  101   b , the first extension segment  130   a  and the second extension segment  130   b  may be arranged on the inner coil  101   a , which can also increase the extension length of the coil body  130 , so as to implement the designed target frequency band and improve the wireless performance of the coil body  130 . Optionally, as shown in  FIG.  37   , when the coil body  130  includes the inner coil  101   a  and the outer coil  101   b , the first extension segment  130   a  and the second extension segment  130   b  may be arranged on the inner coil  101   a , which can also increase the extension length of the coil body  130 , so as to implement the designed target frequency band and improve the wireless performance of the coil body  130 . 
     In some optional embodiments, as shown in  FIG.  38   , at least a part of the coil body  130  includes a first segment  130   c  and a second segment  130   d  connected to each other, that is, at least a part of the coil body  130  is provided with a double-stranded wire, which can reduce the impedance of the coil body  130  and thus reduce energy loss and energy reflection caused by impedance mismatch, thereby improving the wireless performance of the coil body  130 . 
     Optionally, the antenna  200  is not aligned with the first segment  130   c  or the second segment  130   d , that is, the antenna  200  is connected to the non-double-stranded wire portion of the coil body  130 , which can simplify the connection between the antenna  200  and the coil body  130 . 
     In any one of the embodiments above, the millimeter-wave antenna unit  210  of the millimeter-wave antenna array  201  may be a unit of single-polarization millimeter-wave antenna array  201 . Alternatively, as shown in  FIG.  39   , the millimeter-wave antenna unit  210  of the millimeter-wave antenna array  201  is a dual-polarization millimeter-wave antenna unit  210 . 
     In any of the above embodiments, different parts of the coil body  130  may be arranged on a same layer, that is, the first connection segment  131 , the second connection segment  132  and the third connection segment  133  may be arranged on a same layer. Alternatively, different parts of the coil body  130  may be positioned on the different layers. For example, at least two of the first connection segment  131 , the second connection segment  132  and the third connection segment  133  are positioned on different film layers. Different parts of at least one of the first connection segment  131 , the second connection segment  132  and the third connection segment  133  may be positioned on a same layer. Alternatively, different parts of at least one of the first connection segment  131 , the second connection segment  132  and the third connection segment  133  may be positioned on different layers. For example, different parts of the first connection segment  131  may be positioned on different layers, different parts of the second connection segment  132  may be positioned on different layers, and/or different parts of the third connection segment  133  may be positioned on different layers. 
     Reference is made to  FIG.  40   , which is a partial cross-sectional view taken along line A-A in  FIG.  14   . Optionally, the second connection segment  132  and the antenna  200  may be arranged on a same layer, and the third connection segment  133  and the second connection segment  132  may be arranged on different layers. 
     As shown in  FIG.  41    to  FIG.  47   , in a second aspect, an embodiment of the present application further provides a wireless communication device, including the display panel according to any foregoing embodiment of the first aspect. Since the wireless communication device provided by an embodiment in the second aspect of the present application includes the display panel of any of the above embodiments, the wireless communication device provided by an embodiment in the second aspect of the present application has the beneficial effects of the display panel of any of the above embodiments of the first aspect, and will not be repeated here. 
     The wireless communication apparatus in an embodiment of the present application include but are not limited to a device with display functions, such as a cell phone, a wireless wearable device, a personal digital assistant (PDA), a tablet computer, an e-book, a television, an access control, a smart fixed phone, a console, or the like. 
     In some optional embodiments, as shown in  FIG.  41   , the wireless communication device further includes a first circuit board  400  and a second circuit board  500 . The first circuit board  400  is provided with a first transmission line in communication with the first connecting end  110  and/or the second connecting end  120  of at least one coil body  130 . The second circuit board  500  is provided with a second transmission line in communication with the millimeter-wave antenna array  201 . 
     Optionally, as shown in  FIG.  41   , the antenna  200  includes at least two millimeter-wave antenna units  210 . Two or more millimeter-wave antenna units  210  form a millimeter-wave antenna array  201 . A plurality of millimeter-wave antenna arrays  201  may be provided. Each of the plurality of millimeter-wave antenna arrays  201  is provided with a separate circuit board. The circuit boards corresponding to the plurality of millimeter-wave antenna arrays  201  may be the second circuit boards  500 , so that the millimeter-wave antenna array  201  can transmit signals with the corresponding second circuit board  500  nearby. 
     The first circuit board  400  and the second circuit board  500  may be arranged in various manners. For example, the first circuit board  400  and the second circuit board  500  may be provided separately from each other. In some optional embodiments, as shown in  FIG.  41   , the first circuit board  400  and the second circuit board  500  are integrally provided, which can simplify the structure of the wireless communication device. 
     Optionally, the wireless communication device may further include a first integrated circuit in communication with the first connecting end  110  and/or the second connecting end  120  through the first transmission line. The first integrated circuit may be arranged in various positions. The first integrated circuit may be arranged on the first circuit board  400 , or the first integrated circuit may be directly arranged on a printed circuit board (PCB) of the wireless communication device. 
     Optionally, the wireless communication device may further include a second integrated circuit  510  in communication with the millimeter-wave antenna array  201  through the second transmission line. The second integrated circuit  510  may be arranged in various positions. The second integrated circuit  510  may be arranged on the second circuit board  500 , or the second integrated circuit  510  may be directly arranged on the PCB of the wireless communication device. In an embodiment of the present application, the first integrated circuit being arranged on the PCB of the wireless communication device and the second integrated circuit  510  being arranged on the second circuit board  500  is taken as an example for illustration. 
     When the loop structure  100  is an NFC coil, the first integrated circuit is an NFC radio frequency integrated circuit. When the second integrated circuit  510  is in communication with the millimeter-wave antenna array  201 , the second integrated circuit  510  is a millimeter-wave radio frequency integrated circuit. Due to the filtering and frequency selecting feature of the millimeter-wave radio frequency circuit, the NFC current and the current in other non-millimeter-wave bands are significantly blocked by the millimeter-wave radio frequency circuit, and NFC current and signals in other non-millimeter-wave band do not have significant influence on the millimeter-wave radio frequency circuit, so that a desired performance of the millimeter-wave radio frequency circuit can be ensured. 
     Optionally, when the number of millimeter-wave antenna arrays  201  is two or more, the number of the second circuit boards  500  and the number of the second integrated circuits  510  are two or more. The second integrated circuits  510  are in communication with the millimeter-wave antenna arrays  201  through the second transmission lines on the second circuit boards  500 . Two or more second circuit boards  500  may be provided separately from each other, and a first circuit board  400  may be provided integrally with any of second circuit boards  500 . Alternatively, two or more second circuit boards  500  may be integrally provided, that is, a first circuit board  400  may be provided integrally with two or more second circuit boards  500 , which can further simplify the structure of the wireless communication device. 
     In some optional embodiments, the wireless communication device further includes a first connection socket  420  and a second connection socket  520 . The first connection socket  420  is provided on the first circuit board  400  and is in communication with the first transmission line on the first circuit board  400 , and is configured to enable the communication between the first integrated circuit and the coil body  130  through the first connection socket  420 . The second connection socket  520  is provided on the second circuit board  500  and is in communication with the second integrated circuit  510  on the second circuit board  500 , and is configured to enable the signal transmission between the second integrated circuit  510  and the PCB of the wireless communication device. 
     That is, when the first integrated circuit is provided on the PCB of the wireless communication device, and the second integrated circuit  510  is provided on the second circuit board  500 , the first connection socket  420  is configured to enable the communication between the coil body  130  and the first integrated circuit, and the second connection socket  520  is configured to enable the communication between the second integrated circuit  510  and the PCB of the wireless communication device. 
     The first connection socket  420  and the second connection socket  520  may be arranged in various manners. For example, when the first circuit board  400  and the second circuit board  500  are provided separately from each other, the first connection socket  420  and the second connection socket  520  are provided separately from each other. 
     In some optional embodiments, as shown in  FIG.  41   , when the first circuit board  400  and the second circuit board  500  are integrally provided, the first connection socket  420  and the second connection socket  520  are integrally provided, which can further simplify the structure of the wireless communication device. 
     In some optional embodiments, as shown in  FIG.  42   , the antenna  200  further includes the non-millimeter-wave antenna  202 . At least one millimeter-wave antenna unit  210  is reused as part of the non-millimeter-wave antenna  202 . The wireless communication device may further include a third circuit board  600 . The third circuit board  600  is provided with a third transmission line. The third transmission line is in communication with the millimeter-wave antenna unit  210  reused as the non-millimeter-wave antenna  202 . 
     At least two of the third circuit board  600 , the second circuit board  500  and the first circuit board  400  are integrally provided to simplify the structure of the wireless communication device. When there are two or more millimeter-wave antenna arrays  201 , there are two or more second circuit boards  500 , and at least one of the third circuit board  600  and the first circuit board  400  may be integrally provided with at least one second circuit board  500 . 
     Optionally, the wireless communication device further includes a third connection socket  620  provided on the third circuit board  600  and in communication with the third transmission line. Optionally, the third circuit board  600  further includes a third integrated circuit  610 . The third connection socket  620  is in communication with the third integrated circuit  610  and is configured to enable the communication between the third integrated circuit  610  and the PCB of the display apparatus. 
     The third integrated circuit  610  is in communication with the non-millimeter-wave antenna  202 , so that the third integrated circuit  610  is a non-millimeter-wave radio frequency integrated circuit. Because both the non-millimeter-wave radio frequency integrated circuit and the NFC radio frequency integrated circuit have the filtering and frequency selecting feature, signals in other non-millimeter-wave bands do not have a significant influence on the NFC radio frequency integrated circuit, or NFC signals do not have a significant influence on the radio frequency integrated circuits corresponding to other non-millimeter-wave bands, so as to ensure a desired performance of the NFC radio frequency integrated circuit or radio frequency integrated circuits corresponding to other non-millimeter-wave bands. 
     Similarly, the third integrated circuit  610  is a non-millimeter-wave radio frequency integrated circuit, the second integrated circuit  510  is a millimeter-wave radio frequency integrated circuit, and the first integrated circuit is a NFC radio frequency integrated circuit. Due to the filtering and frequency selecting feature of the NFC radio frequency circuit, signals in the millimeter-wave band and the non-millimeter-wave band do not have a significant influence on the performance of the NFC radio frequency integrated circuit. 
     When the wireless communication device includes three different types of connection sockets including the first connection socket  420 , the second connection socket  520  and the third connection socket  620 , at least two of the first connection socket  420 , the second connection socket  520  and the third connection socket  620  are integrally provided to simplify the structure of the wireless communication device. When there are two or more antennas  200 , there are two or more second connection sockets  520 , and the third connection socket  620  and the first connection socket  420  may be integrally formed with at least one second connection socket  520 . 
     Optionally, as shown in  FIG.  42   , the first circuit board  400 , one of the second circuit boards  500  and the third circuit board  600  are integrally provided, and the first connection socket  420 , one of the second connection sockets  520  and the third connection socket  620  are integrally arranged to simplify the structure of the display apparatus as much as possible. 
     As shown in  FIG.  43   , the wireless communication device provided by the embodiments of the present application includes a display panel. The display panel is provided with the loop structure  100  and the antenna  200 . The antenna  200  includes the millimeter-wave antenna array  201  and the non-millimeter-wave antenna  202 . Both the millimeter-wave antenna array  201  and the non-millimeter-wave antenna  202  are connected to the loop structure  100 . The millimeter-wave antenna array  201  includes the millimeter-wave antenna units  210  and the millimeter-wave feeding portions  220 , and two or more millimeter-wave antenna units  210  are included in a same millimeter-wave antenna array  201 . The non-millimeter-wave antenna  202  includes the non-millimeter-wave radiating portion  2021  and the non-millimeter-wave feeding portion  2022 . The non-millimeter-wave radiating portion  2021  is formed by reused two or more millimeter-wave antenna units  210  connected to each other. The non-millimeter-wave feeding portion  2022  is the feeding portion of the non-millimeter wave antenna  202 . 
     With reference to  FIG.  44    to  FIG.  45   , the wireless communication device further includes the first circuit board  400 , the second circuit board  500  and the third circuit board  600 . The first circuit board  400  is provided with a first connection socket  420  configured to communicate with the loop structure  100 . The second circuit board  500  is provided with the second integrated circuit  510  and the second connection socket  520 . The third circuit board  600  is provided with the third integrated circuit  610  and the third connection socket  620 . In an embodiment of the present application, the second circuit board  500  and the third circuit board  600  being integrally formed and the second connection socket  520  and the third connection socket  620  being integrally formed is taken as an example for illustration. 
     In other embodiments, as shown in  FIG.  45   , the first circuit board  400 , the second circuit board  500  and the third circuit board  600  may be integrally formed, and the first connection socket  420 , the second connection socket  520  and the third connection socket  620  may also be integrally formed. 
     As shown in  FIG.  46    and  FIG.  47   , the wireless communication device further includes a substrate  700 . The loop structure  100  and the antenna  200  are arranged in the touch layer  300 . The touch layer  300  is arranged on the substrate  700 . As shown in  FIG.  46   , the second circuit board  500  and the third circuit board  600  may be arranged in the non-display area of the wireless communication device. Alternatively, as shown in  FIG.  47   , the second circuit board  500  and the third circuit board  600  are flexible circuit boards. The second integrated circuit  510  and the third integrated circuit  610  may be bonded by a chip on film (COF) process to the second circuit board  500  and the third circuit board  600 . The second circuit board  500  and the third circuit board  600  are bent to a non-display side of the wireless communication device. 
     In other optional embodiments, the first circuit board  400  may also be a flexible circuit board and is bent to the non-display side of the wireless communication device. When the first circuit board  400 , the second circuit board  500  and the third circuit board  600  are integrally formed, the second integrated circuit  510  and the third integrated circuit  610  may be bonded to a same circuit board by the COF process. 
     Although the present application has been described with reference to the preferred embodiments, various modifications may be made thereto and components thereof may be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, various technical features mentioned in various embodiments can be combined in any manner. This application is not limited to the specific embodiments disclosed herein, instead, it includes all technical solutions that fall within the scope of the claims.