Wireless charging terminal and wireless charging system

Abstract

The present disclosure provides a wireless charging terminal and a wireless charging system, belonging to the technical fields of wireless communications and display. The wireless charging terminal of the present disclosure comprises a display panel, a power management chip, and an electrical module. The display panel has a display area and a non-display area surrounding the display area; the display panel comprises a base substrate, a display function layer provided on the base substrate, and an antenna layer provided on the side of the display function layer facing away from the base substrate; the antenna layer comprises an antenna array, the antenna array comprising a plurality of antenna sub-arrays; each antenna sub-array comprises at least one radiation element located in the display area and a feed structure extending from the display area to the non-display area, the radiation elements belonging to the same antenna sub-array being electrically connected to the feed structure; and the radiation elements are configured to receive wireless charging signals provided by an external transmitter, and feed same into the power management chip by means of the feed structures. The power management chip is used for converting the wireless charging signals into electric energy and supplying power to the electrical module.

Description

Wireless charging terminal and wireless charging system TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of wireless communication and display, and particularly relates to a wireless charging terminal and a wireless charging system. BACKGROUND

[0002] The existing terminal is limited by the development of battery material, and the battery capacity cannot meet the needs of terminal power consumption, resulting in frequent charging. Today, almost all electronic devices, such as mobile phones, electronic watches, notebook computers, etc., charge mainly in the form of wired power transmission, that is, a wired charger is connected to an alternating current power source at one end and a portable electronic device battery at the other end. This wired charging method, on the one hand, is easy to damage the terminal mainboard interface due to frequent plugging and unplugging of the charger; on the other hand, it may also accidentally cause electric shock danger.

[0003] Wireless charging applies a new energy transmission technology-wireless power supply technology. This technology makes the charger free from the restriction of the line, realizing the complete separation of the charger and the power source. It shows better advantages than the traditional wired charging in safety, flexibility, etc. SUMMARY

[0004] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a wireless charging terminal and a wireless charging system.

[0005] In a first aspect, a technical solution adopted to solve the technical problems of the present disclosure is a wireless charging terminal, comprising a display panel, a power management chip and a power consumption module;

[0006] The display panel has a display area and a non-display area surrounding the display area; the display panel comprises a substrate, a display function layer disposed on the substrate, and an antenna layer disposed on the side of the display function layer away from the substrate;

[0007] The antenna layer comprises an antenna array, and the antenna array comprises a plurality of antenna sub-arrays; each antenna sub-array comprises at least one radiation unit located in the display area and a feeding structure extending from the display area to the non-display area; the radiation unit and the feeding structure belonging to the same antenna sub-array are electrically connected;

[0008] The radiation unit is used for receiving a wireless charging signal provided by an external transmitter and feeding the wireless charging signal into the power management chip through the feeding structure; the power management chip is used for converting the wireless charging signal into electric energy and supplying power to the power consumption module.

[0009] In some embodiments, the antenna layer comprises an antenna substrate and a radiation layer disposed on the side of the antenna substrate away from the substrate;

[0010] The radiation units and the feeding structure are located in the radiation layer.

[0011] In some embodiments, the radiation units in the antenna subarray include a plurality; the feeding structure includes a first feeding line and a second feeding line;

[0012] For any of the antenna subarrays, the first feeding line and the second feeding line are respectively connected in series to a plurality of the radiation units in sequence.

[0013] In some embodiments, the wireless charging terminal further includes a first dielectric layer disposed on the antenna substrate close to the display functional layer side; the first dielectric layer is located in the display area;

[0014] The first feeding line includes a first sub-section located in the display area and a second sub-section located in the non-display area; except for the connection position of the first sub-section and the second sub-section, the line width of the first sub-section is greater than that of the second sub-section;

[0015] The second feeding line includes a third sub-section located in the display area and a fourth sub-section located in the non-display area; except for the connection position of the third sub-section and the fourth sub-section, the line width of the third sub-section is greater than that of the fourth sub-section.

[0016] In some embodiments, the second sub-section includes at least a first monotonically decreasing area; along the extension direction away from the display area, the line width of the second sub-section located in the first monotonically decreasing area monotonically decreases, and the ratio of the line width of the first sub-section to the narrowest line width of the second sub-section is between 8 and 1.25;

[0017] The fourth sub-section includes at least a second monotonically decreasing area; along the extension direction away from the display area, the line width of the fourth sub-section located in the second monotonically decreasing area monotonically decreases, and the ratio of the line width of the third sub-section to the narrowest line width of the fourth sub-section is between 8 and 1.25.

[0018] In some embodiments, the line width of the first sub-section is the same as that of the third sub-section; the narrowest line width of the second sub-section is the same as that of the fourth sub-section.

[0019] In some embodiments, the shapes of the radiation units, the first sub-section and the third sub-section are all grid-shaped.

[0020] In some embodiments, the radiation layer further includes a plurality of spaced-apart redundant structure portions, the redundant structure portions are located in the display area, and the shapes of the redundant structure portions are grid-shaped.

[0021] The plurality of redundant structural parts are arranged around and spaced apart from the radiating unit and the feeding structure.

[0022] In some embodiments, the antenna substrate is a transparent substrate.

[0023] In some embodiments, the non-display area includes a bending area and a binding area located on a side of the bending area away from the display area.

[0024] The display panel further includes a feeding network arranged on a side of the antenna layer away from the substrate;

[0025] The feeding structure extends from the display area to the binding area and is connected to the feeding network, the feeding network is connected to the power management chip, and when the display panel is in a bent state, the feeding network and the power management chip are bent to the back light side of the wireless charging terminal.

[0026] In some embodiments, at least part of the plurality of antenna subarrays are energy conversion antennas.

[0027] The feeding network includes a first feeding port and a second feeding port arranged one-to-one corresponding to the feeding structure of the energy conversion antenna, a first feeding part electrically connected to the first feeding port, a first phase delay line electrically connected to the second feeding port, and N levels of first power dividers and combiners in cascade connection; N is a positive integer greater than or equal to 2.

[0028] The first feeding port is connected to a first feeding line of the energy conversion antenna, and the second feeding port is connected to a second feeding line of the energy conversion antenna; the first level of the first power dividers and combiners is connected to the power management chip; and the Nth level of the first power dividers and combiners is electrically connected to the first feeding part and the first phase delay line corresponding to the same energy conversion antenna.

[0029] In some embodiments, the first feeding port and the second feeding port corresponding to the same feeding structure have a phase difference of 90°.

[0030] In some embodiments, at least part of the plurality of antenna subarrays are energy conversion antennas.

[0031] The feeding network includes a first feeding port and a second feeding port arranged one-to-one corresponding to the feeding structure of the energy conversion antenna, a first phase shifter electrically connected to the first feeding port, a second phase shifter electrically connected to the second feeding port, and N levels of first power dividers and combiners in cascade connection; N is a positive integer greater than or equal to 2.

[0032] The first feeding port is in a binding connection with a first feeding line of the energy conversion antenna, and the second feeding port is in a binding connection with a second feeding line of the energy conversion antenna; the first power divider of the first stage is in a binding connection with the power management chip; the first power divider of the Nth stage is in an electrical connection with the first phase shifter and the second phase shifter corresponding to the same energy conversion antenna.

[0033] In some embodiments, at least part of the plurality of antenna subarrays are energy conversion antennas; the antenna charging terminal further comprises a beamforming chip;

[0034] The feeding network comprises a first feeding port and a second feeding port arranged in a one-to-one correspondence with a feeding structure of the energy conversion antenna, a first feeding part in an electrical connection with the first feeding port, a first phase delay line in an electrical connection with the second feeding port, and a first power divider in an electrical connection with the first feeding part and the first phase delay line corresponding to the same energy conversion antenna;

[0035] The first feeding port is in a binding connection with a first feeding line of the energy conversion antenna, and the second feeding port is in a binding connection with a second feeding line of the energy conversion antenna; the first power divider is in a binding connection with the beamforming chip; the beamforming chip is in a binding connection with the power management chip through a radio frequency signal line.

[0036] In some embodiments, the wireless charging terminal comprises a relay feeding board and a master control board; the feeding network is integrated on the relay feeding board, and the power management chip is integrated on the master control board;

[0037] In a state where the display panel is in a folded state, the relay feeding board and the master control board are folded to a backlight side of the wireless charging terminal.

[0038] In some embodiments, the wireless charging terminal comprises a master control board, and the feeding network and the power management chip are both integrated on the master control board; in a state where the display panel is in a folded state, the master control board is folded to a backlight side of the wireless charging terminal.

[0039] In some embodiments, the plurality of antenna subarrays further comprise a communication antenna;

[0040] The feeding network further comprises a third feeding port and a fourth feeding port arranged in a correspondence with a feeding structure of the communication antenna, a second feeding part in an electrical connection with the third feeding port, a second phase delay line in an electrical connection with the fourth feeding port, and a second power divider in an electrical connection with the second feeding part and the second phase delay line corresponding to the same communication antenna;

[0041] The third feeding port is connected with a first feeding line of the communication antenna, and the fourth feeding port is connected with a second feeding line of the communication antenna; and the second power division and combination device is connected with the power management chip.

[0042] In some embodiments, at least one of the plurality of energy conversion antennas is multiplexed as a communication antenna.

[0043] In a second aspect, the embodiments of the present disclosure further provide a wireless charging system, comprising a transmitter and the wireless charging terminal according to any one of the first aspect.

[0044] The transmitter is configured to send a wireless charging signal to the radiation unit.

[0045] The radiation unit is configured to receive the wireless charging signal and feed the power management chip through the feeding structure.

[0046] The power management chip is configured to convert the wireless charging signal into electric energy and supply power to the power-consuming module.

[0047] In some embodiments, the power management chip comprises a communication module, an energy conversion module and a receiving processor.

[0048] The receiving processor is configured to, according to a current power state of the wireless charging terminal, send a response signal to the communication module when the current power state indicates that the power is insufficient; and perform identity authentication on the transmitter according to the received data packet, and send authentication passing information to the energy conversion module and feedback to the transmitter.

[0049] The communication module is configured to receive the response signal and transmit the response signal to the transmitter through the communication antenna in the antenna array; and in response to receiving the data packet, send the data packet to the receiving processor.

[0050] When the transmitter is located within the coverage range of the response signal, the transmitter is further configured to, in response to the response signal, send a data packet to the communication antenna in the antenna array; and after identity authentication, send a wireless charging signal to the energy conversion antenna in the antenna array.

[0051] The energy conversion module is configured to, after identity authentication of the transmitter is passed, convert the wireless charging signal into electric energy and supply power to the power-consuming module in response to receiving the wireless charging signal. BRIEF DESCRIPTION OF DRAWINGS

[0052] FIG. 1 is a schematic diagram of a wireless charging terminal according to an embodiment of the present disclosure;

[0053] FIG. 2 is a partial plan view of a display panel in an unbent state according to an embodiment of the present disclosure;

[0054] FIG. 3 is a partial film layer schematic diagram of a display panel in an unbent state according to an embodiment of the present disclosure;

[0055] FIG. 4 is a plan view of a single antenna subarray according to an embodiment of the present disclosure;

[0056] FIG. 5 is a schematic diagram of a line width transition region of a first feed line and a second feed line according to an embodiment of the present disclosure;

[0057] FIG. 6 is a directivity diagram of a main beam according to an embodiment of the present disclosure;

[0058] FIG. 7 is a specific plan schematic diagram of a display panel in an unbent state according to an example 1 according to an embodiment of the present disclosure;

[0059] FIG. 8 is a film layer schematic diagram of a display panel in a bent state according to an embodiment of the present disclosure;

[0060] FIG. 9a is a specific plan schematic diagram of a display panel in an unbent state according to an example 2 according to an embodiment of the present disclosure;

[0061] FIG. 9b is a cross-sectional view of a phase shifter integrated on a feed network according to an embodiment of the present disclosure;

[0062] FIG. 10a is a specific plan schematic diagram of a display panel in an unbent state according to an example 3 according to an embodiment of the present disclosure;

[0063] FIG. 10b is a cross-sectional view of a beamforming chip bound to a feed network according to an embodiment of the present disclosure;

[0064] FIG. 11 is a schematic diagram of a scanning effect of a beam at different angles according to an embodiment of the present disclosure;

[0065] FIG. 12 is a schematic diagram of an axial ratio test result corresponding to a beam scanning at different angles according to an embodiment of the present disclosure;

[0066] FIG. 13 is a schematic diagram of an inter-board connection relationship according to an example according to an embodiment of the present disclosure;

[0067] FIG. 14 is a schematic diagram of an inter-board connection relationship according to another example according to an embodiment of the present disclosure;

[0068] FIG. 15 is a specific plan schematic diagram of a display panel in an unbent state according to an example 4 according to an embodiment of the present disclosure;

[0069] FIG. 16 is a schematic diagram of antenna multiplexing according to an embodiment of the present disclosure;

[0070] FIG. 17 is a schematic diagram of a wireless charging system according to an embodiment of the present disclosure;

[0071] FIG. 18 is a schematic diagram of a power management chip according to an embodiment of the present disclosure;

[0072] FIG. 19 is a schematic diagram of another power management chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0073] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure and not all the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the claimed present disclosure, but only represents selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0074] Unless otherwise defined, technical terms or scientific terms used in the present disclosure should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. The terms "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are used to distinguish different components. Similarly, the terms "one", "a" or "the" and similar terms do not denote a quantity limitation, but mean that at least one exists. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like only represent relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0075] In the present disclosure, "multiple or several" means two or more. The term "and / or" describes the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0076] In the related art, the technical forms that can realize wireless transmission of energy include the following: inductive coupling and resonant coupling, microwave radiation and laser radiation. Among them, inductive coupling and resonant coupling can be classified as non-radiation type transmission, both of which mainly rely on coils to realize electromagnetic energy coupling transmission at low frequencies (a few kHz to 30 MHz). Inductive coupling wireless charging technology has taken a place in the consumer electronics market, but the action distance is very short, only centimeters; the magnetic coupling resonance type has a longer action distance, up to meters, and the non-radiation type transmission is suitable for medium and short distance application scenarios; but when the transmission distance requirement reaches meters, even ten meters and hundreds of meters, it needs to rely on radiation. Microwave can realize long-distance wireless energy transmission; microwave is more prone to dispersion in free space, but has better robustness, safety and cost performance. Therefore, microwave wireless energy transmission will become a mainstream technical solution to realize long-distance wireless energy transmission.

[0077] Microwave radio wave transmission is to convert electromagnetic waves into electric current, and then transmit the electric current through a circuit. The radio wave transmission system mainly consists of a microwave transmitting device and a microwave receiving device. The microwave transmitting device transmits radio waves, and the microwave receiving device captures radio wave energy and adjusts with the load to obtain stable direct current. In theory, this wireless charging method has a longer transmission distance than electromagnetic induction and magnetic resonance, which can reach more than 10 meters; at the same time, it can also realize automatic charging anytime and anywhere.

[0078] The challenge of realizing wireless transmission on the display terminal comes from the screen. Improving the screen ratio is the goal of continuous innovation of developers in recent years, such as launching thinner, frameless design screens and 18:9 screen aspect ratio full-screen mobile phones. Since the antenna cannot be transparent and must be placed outside the screen area, the area available for antenna design on the display terminal has been reduced by more than 50%, and the width of the top and bottom frame of the screen has been reduced to 3mm-4mm. Moreover, due to the change of the screen aspect ratio, the frame of the display terminal also begins to become narrower. These changes mean that the integrated antenna in the display terminal must be shortened. However, the reduction of antenna area and length will directly affect the radiation performance and efficiency of the antenna, and the transmission and reception performance will be affected, which will bring various disadvantages, such as including shortening the battery life, reducing the radiation range, and reducing the transmission rate. With the further compression of the internal space of the mobile phone, it is difficult to find a flat plane for antenna design, not to mention the antenna for wireless charging.

[0079] The electromagnetic wave propagates in space and gradually diverges. In order to improve the transmission efficiency, the aperture of the transmitting antenna needs to be increased, so that the microwave power is emitted in a more concentrated beam with higher gain; or the aperture of the receiving antenna is increased, so that more energy is captured by the receiving antenna. However, in actual application, on the one hand, the size of the transmitting and receiving antenna aperture is often limited, resulting in that the transmission efficiency is restricted by the antenna aperture in a long distance. On the other hand, the frequency spectrum distribution of the radio frequency energy available for collection in the environment is relatively dispersed, and for the display terminal, the incoming direction and polarization state of the environmental radio frequency energy are uncertain.

[0080] Therefore, the wireless charging terminal provided by the embodiments of the present disclosure essentially integrates the radiation unit of the antenna on the screen side of the display panel, forms a receiving antenna with high aperture efficiency, and realizes efficient energy receiving and conversion, thereby realizing efficient wireless charging.

[0081] The wireless charging terminal provided by the embodiments of the present disclosure specifically uses wireless charging technology to supply power to the power module. The power module includes but is not limited to a battery and other power devices. Specifically, the wireless charging terminal relates to a long-distance wireless charging, and the "long distance" includes but is not limited to a distance of more than 10 meters.

[0082] FIG. 1 is a schematic diagram of the wireless charging terminal provided by the embodiments of the present disclosure, FIG. 2 is a partial planar schematic diagram of the display panel in an unfolded state provided by the embodiments of the present disclosure, and FIG. 3 is a partial film layer schematic diagram of the display panel in an unfolded state provided by the embodiments of the present disclosure.

[0083] As shown in FIG. 1, the wireless charging terminal 100 includes a display panel 10, a power management chip 20, and a power module 30. The display panel 10 is integrated with an antenna array 1, which receives a wireless charging signal provided by an external transmitter 200 (see FIG. 17 below) and transmits the wireless charging signal to the power management chip 20; the power management chip 20 is used to convert the wireless charging signal into electric energy and supply power to the power module 30, thereby realizing wireless charging.

[0084] As shown in FIG. 2 and FIG. 3, the display panel 10 has a display area AA and a non-display area BB surrounding the display area AA; the display panel 10 includes a substrate 101, a display function layer 102 disposed on the substrate 101, and an antenna layer 103 disposed on a side of the display function layer 102 away from the substrate 101. The display function layer 102 at least includes a light emitting unit (not shown in the figure) and a pixel driving circuit (not shown in the figure) for driving the light emitting unit.

[0085] As shown in FIG. 2, the antenna layer 103 includes an antenna array 1, the antenna array 1 includes a plurality of antenna sub-arrays 11; the antenna sub-array 11 includes at least one radiating unit 111 located in the display area AA and a feeding structure 112 extending from the display area AA to the non-display area BB; the radiating unit 111 and the feeding structure 112 belonging to the same antenna sub-array 11 are electrically connected.

[0086] The radiating unit 111 is configured to receive or emit a radiation signal. The feeding structure 112 is configured to transmit the radiation signal received by the radiating unit 111 to the power management chip 20, and transmit the radiation signal sent by the power management chip 20 to the radiating unit 111.

[0087] Optionally, as shown in FIG. 2, the number of radiating units 111 included in each antenna sub-array 11 is the same, each antenna sub-array 11 includes M radiating units 111, and M is a positive integer greater than or equal to 2. The plurality of antenna sub-arrays 11 are arranged side by side along a first direction X, and the M radiating units 111 are arranged side by side along a second direction Y. The first direction X and the second direction Y intersect. For example, the first direction X and the second direction Y are perpendicular.

[0088] Optionally, the feeding structure 112 includes one feeding line, that is, the antenna sub-array 11 is a single-polarized antenna.

[0089] Optionally, the feeding structure 112 includes two feeding lines, respectively denoted as a first feeding line 1121 and a second feeding line 1122, that is, the antenna sub-array 11 is a dual-polarized antenna.

[0090] The wireless charging terminal 100 provided by the embodiments of the present disclosure arranges the radiating units 111 in the plurality of antenna sub-arrays 11 in the display area AA of the display panel 10 instead of the non-display area BB. On the one hand, the display area AA has a large area and has enough space to place the radiating units 111, so that the radiating units 111 are no longer limited in size, which is conducive to forming a receiving antenna with high aperture efficiency, thereby realizing efficient reception of electromagnetic wave energy and further realizing efficient wireless charging. On the other hand, the structure in the display area AA of the display panel 10 is relatively simple and the electromagnetic environment is relatively stable, and is not easily disturbed by the circuit of the main control board 110.

[0091] In some embodiments, since the main structure (for example, the radiating unit 111) of the antenna array 1 is arranged in the display area AA, cross-layer electrical connection cannot be achieved, and it is difficult to achieve complex antenna structure design. Therefore, the antenna sub-array 11 of the present disclosure adopts a microstrip line form. As shown in FIG. 3, the antenna layer 103 includes an antenna substrate 1031 and a radiating layer 1032 arranged on the side of the antenna substrate 1031 away from the substrate substrate 101; the radiating unit 111 and the feeding structure 112 are both located in the radiating layer 1032.

[0092] Optionally, the radiating units 111 in the antenna subarray 11 include a plurality of radiating units; in the case that the feeding structure 112 includes one feeding line, for any antenna subarray 11, the feeding structure 112 is connected to the plurality of radiating units 111 in sequence.

[0093] Optionally, FIG. 4 is a plan view of a single antenna subarray according to an embodiment of the present disclosure. As shown in FIG. 4, the radiating units 111 in the antenna subarray 11 include a plurality of radiating units; the feeding structure 112 includes a first feeding line 1121 and a second feeding line 1122; for any antenna subarray 11, the first feeding line 1121 and the second feeding line 1122 are connected to the plurality of radiating units 111 in sequence respectively.

[0094] As shown in FIG. 4, in the second direction Y, the adjacent radiating units 111 are arranged with a spacing. The first feeding line 1121 includes a first main body extension 1121a and a plurality of first connecting portions 1121b; for any first connecting portion 1121b, the two ends of the first connecting portion 1121b are connected to the first main body extension 1121a and one radiating unit 111 respectively; the number of the first connecting portions 1121b is the same as the number of the radiating units 111. Similarly, the second feeding line 1122 includes a second main body extension 1122a and a plurality of second connecting portions 1122b; for any second connecting portion 1122b, the two ends of the second connecting portion 1122b are connected to the second main body extension 1122a and one radiating unit 111 respectively.

[0095] As shown in FIG. 4, the extension directions of the first main body extension 1121a and the second main body extension 1122a are both the second direction Y, and are different from the extension directions of the first connecting portions 1121b and the second connecting portions 1122b. The extension line of the first main body extension 1121a and the extension line of the second main body extension 1122a are arranged to sandwich the plurality of radiating units 111 of the corresponding antenna subarray 11.

[0096] As shown in FIG. 4, the extension directions of the first connecting portions 1121b and the second connecting portions 1122b are different. For example, the angle between the extension line of the first connecting portion 1121b and the extension line of the second connecting portion 1122b is 90°.

[0097] In some embodiments, the contour shape of the radiating unit 111 includes, but is not limited to, any one of a quadrilateral, a hexagon, and an octagon. Optionally, as shown in FIG. 4, the contour shape of the radiating unit 111 is an octagon.

[0098] In some embodiments, as shown in FIG. 3, the display panel 10 further includes a first dielectric layer 104 arranged on the side of the antenna substrate 1031 close to the display functional layer 102; the first dielectric layer 104 is located in the display area AA.

[0099] FIG. 5 is a schematic view of a line width transition region of the first feed line and the second feed line according to an embodiment of the present disclosure. As shown in FIG. 5, the first feed line 1121 includes a first sub-section 21a1 located in the display area AA and a second sub-section 21a2 located in the non-display area BB. Except for the connection position of the first sub-section 21a1 and the second sub-section 21a2, the line width of the first sub-section 21a1 is greater than that of the second sub-section 21a2. The second feed line 1122 includes a third sub-section 22a1 located in the display area AA and a fourth sub-section 22a2 located in the non-display area BB. Except for the connection position of the third sub-section 22a1 and the fourth sub-section 22a2, the line width of the third sub-section 22a1 is greater than that of the fourth sub-section 22a2.

[0100] At the connection position of the first sub-section 21a1 and the second sub-section 21a2, the line widths of the two are the same. At the connection position of the third sub-section 22a1 and the fourth sub-section 22a2, the line widths of the two are the same.

[0101] In the present embodiment, since the display area AA of the display panel 10 is provided with the first dielectric layer 104 and the non-display area BB is not provided with the first dielectric layer 104, the impedances of the first feed line 1121 and the second feed line 1122 are different between the display area AA and the non-display area BB. In this regard, the line width of the first feed line 1121 (and the second feed line 1122) is transitioned to improve impedance adaptation.

[0102] In some embodiments, as shown in FIG. 5, the second sub-section 21a2 includes at least a first monotonically decreasing region CC1. In the extension direction away from the display area AA, the line width of the second sub-section 21a2 located in the first monotonically decreasing region CC1 monotonically decreases. The fourth sub-section 22a2 includes at least a second monotonically decreasing region CC2. In the extension direction away from the display area AA, the line width of the fourth sub-section 22a2 located in the second monotonically decreasing region CC2 monotonically decreases.

[0103] In the present embodiment, the line width monotonically decreases to improve impedance adaptation.

[0104] Optionally, the ratio of the line width of the first sub-section 21a1 to the narrowest line width of the second sub-section 21a2 is between 8 and 1.25. For example, the line width of the first sub-section 21a1 is in the range of 0.5 mm to 0.8 mm, and the line width of the second sub-section 21a2 is in the range of 0.1 mm to 0.4 mm.

[0105] Optionally, the ratio of the line width of the third sub-section 22a1 to the narrowest line width of the fourth sub-section 22a2 is between 8 and 1.25. For example, the line width of the third sub-section 22a1 is in the range of 0.5 mm to 0.8 mm, and the line width of the fourth sub-section 22a2 is in the range of 0.1 mm to 0.4 mm.

[0106] Optionally, the line width of the first sub-section 21a1 is the same as that of the third sub-section 22a1; the narrowest line width of the second sub-section 21a2 is the same as that of the fourth sub-section 22a2.

[0107] For example, the thickness of the first dielectric layer 104 is 150um, and the thickness of the antenna substrate 1031 is 40um; when the impedance of the first sub-section 21a1 and the second sub-section 21a2 is both 50Ω, and the impedance of the third sub-section 22a1 and the fourth sub-section 22a2 is both 50Ω, the line width of the first sub-section 21a1 and the third sub-section 22a1 is both 0.5mm, and the narrowest line width of the second sub-section 21a2 and the fourth sub-section 22a2 is both 0.1mm.

[0108] In some embodiments, as shown in FIG. 4, the shape of the radiation unit 111 is grid-shaped, i.e., the radiation unit 111 is a metal network structure, which enhances the transmittance of the radiation unit 111.

[0109] In some embodiments, as shown in FIG. 5, the shape of the first sub-section 21a1 and the third sub-section 22a1 is both grid-shaped, i.e., the first sub-section 21a1 and the third sub-section 22a1 are both metal network structures, which enhances the transmittance of the feed structure 112 in the display area AA.

[0110] Optionally, the shape of the radiation unit 111, the first sub-section 21a1 and the third sub-section 22a1 is all grid-shaped, which improves the transmittance of the display area AA. The experimental measurement shows that the transmittance of the display area AA is above 86%, and the transmittance between 80% and 92% is also acceptable according to the type of the screen.

[0111] For example, the thickness of the first dielectric layer 104 is 150um, and the thickness of the antenna substrate 1031 is 40um. In order to be compatible with the grid design of the first sub-section 21a1 and the third sub-section 22a1, the line width of the first sub-section 21a1 and the third sub-section 22a1 needs to be as large as possible to accommodate more grids; when the impedance of the first sub-section 21a1 and the third sub-section 22a1 is 36Ω, and the impedance of the second sub-section 21a2 and the fourth sub-section 22a2 is both 50Ω, the line width of the first sub-section 21a1 and the third sub-section 22a1 is both 0.8mm, and the narrowest line width of the second sub-section 21a2 and the fourth sub-section 22a2 is both 0.1mm. In this way, the transmission loss of the grid-shaped feed line (e.g., the first feed line 1121 and the second feed line 1122) in the display area AA is relatively small. At the same time, in combination with the structure shown in FIG. 4, the impedance adaptation is improved by the monotonically decreasing manner of the feed line width.

[0112] Exemplarily, the thickness of the first dielectric layer 104 is 150 um, and the thickness of the antenna substrate 1031 is 40 um. In order to reduce the transmission loss, the impedance of the first sub-section 21a1 and the third sub-section 22a1 is set as 50 Ω, and the impedance of the second sub-section 21a2 and the fourth sub-section 22a2 is set as 17 Ω. At this time, the line width of the first sub-section 21a1 and the third sub-section 22a1 is 0.5 mm, and the narrowest line width of the second sub-section 21a2 and the fourth sub-section 22a2 is 0.4 mm.

[0113] In some embodiments, as shown in FIG. 5, the second sub-section 21a2 and the fourth sub-section 22a2 are both solid metal tracks, so as to reduce the transmission loss.

[0114] In some embodiments, as shown in FIG. 2, the radiation layer 1032 further comprises a plurality of spaced-apart redundancy structure portions 12, the redundancy structure portions 12 are located in the display area AA, the shape of the redundancy structure portions 12 is grid-shaped, the plurality of redundancy structure portions 12 are distributed around the radiation units 111 and the feed structure 112, and are spaced apart from the radiation units 111 and the feed structure 112 respectively, the distance between the redundancy structure portions 12 and the radiation units 111 is between 1 um and 50 um, and preferably between 3 um and 20 um, so as to ensure that the redundancy structure portions 12 and the radiation units 111 are macroscopically structurally continuous and microscopically physically disconnected, and the redundancy portions do not affect the performance of the radiation portions.

[0115] In this embodiment, the grid-shaped redundancy structure portions 12 are additionally provided around the radiation units 111 and the feed structure 112, so as to avoid display color difference; meanwhile, the plurality of redundancy structure portions 12 are spaced apart, so as to avoid affecting the radiation of the radiation units 111.

[0116] In some embodiments, the antenna substrate 1031 is a transparent substrate. Exemplarily, the material of the antenna substrate 1031 can be selected from high-transparency organic materials such as cycloolefin polymer (COP), polyethylene terephthalate (PET), transparent polyimide (CPI), polymethyl methacrylate (PMMA), etc.

[0117] Optionally, the material of the antenna substrate 1031 is high-transmittance CPI material, which has a transmittance of 91%, and has characteristics such as high strength, high toughness, and bending resistance. Meanwhile, part of the structure of the antenna substrate 1031 is located in the display area AA, and the high-transmittance CPI material is selected, so as to avoid affecting the light-emitting performance of the display panel 10.

[0118] In some embodiments, the material of the substrate substrate 101 can be selected from general polyimide (PI) material. If it is required to realize double-sided transparent display, the material of the substrate substrate 101 can be selected from high-transmittance CPI material, so as to realize maximum light-emitting efficiency. In some embodiments, the material of the substrate substrate 101 can be selected from general polyimide (PI) material. If it is required to realize double-sided transparent display, the material of the substrate substrate 101 can be selected from high-transmittance CPI material, so as to realize maximum light-emitting efficiency.

[0119] In some embodiments, the plurality of antenna subarrays 11 includes any one of 4, 5, and 6; the at least one radiating unit 111 includes any one of 3, 4, and 5.

[0120] Optionally, as shown in FIG. 2, the plurality of antenna subarrays 11 includes 5, and the radiating unit 111 includes 4. One of the antenna subarrays 11 is a communication antenna, and the other four antenna subarrays 11 are energy conversion antennas 11B; the first direction X group array, for example, four energy conversion antennas 11B, is equivalent to a 4x4 array of radiating units 111. At this time, the effective radiation clearance area of the antenna array 1 in the display area AA is only 190um (for example, 150um of the first dielectric layer 104 and 40um of the antenna substrate 1031), and the thickness of the first dielectric layer 104 is relatively thin, and the radiation efficiency is relatively low. In this case, as shown in FIG. 6, for the above-mentioned 4x4 array of radiating units 111, the highest gain is about 9.1dBi, and the 3dB beam width of the main beam in the horizontal and vertical planes is about 26°, that is, it can cover the area within 13 degrees of the normal column axis.

[0121] It should be noted that the more the number of antenna subarrays 11, the higher the antenna gain. However, in order to balance the spatial range covered by the beam of a single antenna subarray 11, the number of antenna subarrays 11 should not be set too much, so the number of antenna subarrays 11 can be set according to the actual antenna gain requirement and the spatial range covered by the beam of a single antenna subarray 11, and the specific value is not limited. The more the number of radiating units 111, the higher the antenna gain. However, in order to reduce the loss of the feed structure 112 and the feed network 2, the number of radiating units 111 should not be set too much, so the number of radiating units 111 can be set according to the actual antenna gain requirement and the loss range of the feed structure 112 and the feed network 2, and the specific value is not limited.

[0122] Optionally, the plurality of antenna subarrays 11 includes 5, and the radiating unit 111 includes 3. One of the antenna subarrays 11 is a communication antenna, and the other four antenna subarrays 11 are energy conversion antennas 11B; the first direction X group array, for example, four energy conversion antennas 11B, is equivalent to a 3x4 array of radiating units 111.

[0123] Optionally, the plurality of antenna subarrays 11 includes 6, and the radiating unit 111 includes 3. One of the antenna subarrays 11 is a communication antenna, and the other five antenna subarrays 11 are energy conversion antennas 11B; the first direction X group array, for example, five energy conversion antennas 11B, is equivalent to a 3x5 array of radiating units 111.

[0124] In some embodiments, the thickness of the first dielectric layer 104 is between 150um and 460um.

[0125] Optionally, the thickness of the first dielectric layer 104 is 460 um.

[0126] The embodiment increases the effective radiation clearance of the radiation unit 111 in the display area AA by increasing the thickness of the first dielectric layer 104, thereby improving the radiation efficiency and gain. Under the same other structures, the maximum gain can be increased from 9.1 dBi to 12.5 dBi, and the radiation efficiency can be increased from 24% to 51% when the thickness of the first dielectric layer 104 is 460 um compared with 150 um.

[0127] In order to balance the light output efficiency of the display area AA, the thickness of the first dielectric layer 104 can be selected between 200 um and 300 um.

[0128] In some embodiments, FIG. 7 is a specific planar schematic diagram of the display panel in the unbent state under Example 1 provided by the embodiment of the present disclosure, as shown in FIG. 7, the non-display area BB includes a bending area BB1 and a binding area BB2 located on the side of the bending area BB1 away from the display area AA; the display panel 10 further includes a feed network 2 arranged on the side of the antenna layer 103 away from the substrate 101; the feed structure 112 extends from the display area AA to the binding area BB2 and is bound and connected with the feed network 2, and the feed network 2 is bound and connected with the power management chip 20.

[0129] FIG. 8 is a film layer schematic diagram of the display panel in the bent state provided by the embodiment of the present disclosure, as shown in FIG. 8, when the display panel 10 is in the bent state, the feed network 2 and the power management chip 20 are bent to the backlight side of the wireless charging terminal 100.

[0130] In some embodiments, as shown in FIG. 8, the display panel 10 further includes a first coating layer 105 located in the bending area BB1 and arranged on the side of the radiation layer 1032 away from the antenna substrate 1031, the first coating layer 105 covers the radiation layer 1032 located in the bending area BB1, that is, the feed structure 112 located in the bending area BB1, for example, the second sub-section 21a2 and the fourth sub-section 22a2 located in the bending area BB1, thereby avoiding excessive tension of the feed structure 112 in the bending process, protecting the feed structure 112 in the bending area BB1, and preventing the metal wire from deforming and breaking.

[0131] In some embodiments, as shown in FIG. 8, the display panel 10 further includes a second coating layer 106 located in the bending area BB1 and arranged on the side of the display functional layer 102 away from the substrate 101, the second coating layer 106 covers the display functional layer 102 located in the bending area BB1, protecting the signal traces of the display functional layer 102 located in the bending area BB1 in the bending process, and preventing the signal traces from deforming and breaking.

[0132] Exemplarily, the material of the first coating layer 105 and the second coating layer 106 can be selected from organic materials.

[0133] In some embodiments, as shown in FIG. 8, the wireless charging terminal 100 further includes a back plate 107 disposed on the side of the substrate 101 away from the display functional layer 102; the back plate 107 is located in the display area AA. After the display functional layer 102 is bent, the substrate 101 located in the binding area BB2 can be bonded to the back plate 107 by using the first adhesive layer 108. After the antenna layer 103 is bent, the antenna substrate 1031 (or the first reference electrode 1033 located in the binding area BB2 and disposed on the antenna substrate 1031) located in the binding area BB2 can also be bonded to the back plate 107 by using the first adhesive layer 108. It should be noted that FIG. 8 is only a schematic diagram, and the bending conditions of the antenna layer 103 and the display functional layer 102 are shown for the convenience of understanding. In fact, both of them are bonded and fixed to the back plate 107 by the first adhesive layer 108, but the positions are different.

[0134] In some embodiments, the back plate 107 includes a back adhesive 1071 disposed on the side of the substrate 101 away from the display functional layer 102, and a heat dissipation film 1072 disposed on the side of the back adhesive 1071 away from the substrate 101.

[0135] In some embodiments, as shown in FIG. 8, the back plate 107 includes a back adhesive 1071 disposed on the side of the substrate 101 away from the display functional layer 102, a heat dissipation film 1072 disposed on the side of the back adhesive 1071 away from the substrate 101, a second adhesive layer 1073 disposed on the side of the heat dissipation film 1072 away from the back adhesive 1071, and a support plate 1074 disposed on the side of the second adhesive layer 1073 away from the heat dissipation film 1072.

[0136] The second adhesive layer 1073 can be double-sided adhesive, which is used to bond the support plate 1074 to the heat dissipation film 1072.

[0137] In some embodiments, as shown in FIG. 8, the wireless charging terminal 100 further includes a display chip 40 and a flexible printed circuit board 50 disposed on the side of the display functional layer 102 away from the substrate 101; both the display chip 40 and the flexible printed circuit board 50 are located in the bending area BB1 and are bound and connected with the signal lines in the display functional layer 102. In the bending state, the display chip 40 and the flexible printed circuit board 50 are bent to the back light side of the wireless charging terminal 100.

[0138] It should be noted that the electrical connection structure of the antenna array 1 is similar to the electrical connection of the control circuit of the display panel 10. The bending of the display panel 10 can be performed first, and then the binding chip or control board and the like can be performed. The process flow is compatible with the existing production line.

[0139] In some embodiments, as shown in FIG. 3 or FIG. 8, the antenna layer 103 further comprises a first reference electrode 1033 located in the non-display area BB and disposed on the side of the antenna substrate 1031 away from the radiation layer 1032. Exemplarily, the first reference electrode 1033 can be a ground line. The display function layer 102 at least comprises a second reference electrode (not shown in the figure), which can be reused as the reference electrode of the radiation unit 111 and the first feed line 1121 while serving as the signal line of the pixel driving circuit in the display function layer 102, thereby improving the overall integration, simplifying the circuit complexity, and reducing the cost.

[0140] In some embodiments, as shown in FIG. 8, the wireless charging terminal further comprises a polarizer 109 disposed on the side of the radiation layer 1032 away from the antenna substrate 1031, a second dielectric layer 1010 disposed on the side of the polarizer 109 away from the radiation layer 1032, and a cover plate 1011 disposed on the side of the second dielectric layer 1010 away from the polarizer 109.

[0141] As shown in FIG. 8, the polarizer 109, the second dielectric layer 1010, and the cover plate 1011 are all located in the display area AA.

[0142] In some embodiments, the display panel 10 is an organic light emitting diode (OLED) display panel 10.

[0143] In some embodiments, the antenna polarization is a key factor of charging efficiency, and in fact, the polarization of the antenna radiation field can be divided into linear polarization and circular polarization. Since circular polarization can radiate and receive radio frequency energy in any plane, it has superior radio frequency energy collection capability. Circular polarization can also provide energy conversion efficiency by reducing polarization mismatch loss.

[0144] In this embodiment, circular polarization is achieved by adopting a double feed line. Specifically, two linear polarizations with the same amplitude and phase can be combined into linear polarization. If the two linear polarizations are combined with the same amplitude and a phase difference of 90°, right-handed circular polarization is formed. Conversely, if the two linear polarizations are combined with the same amplitude and a phase difference of -90°, left-handed circular polarization is formed.

[0145] In the display area AA, the antenna subarray 11 can be mainly divided into two types, one is a communication antenna 11A for information interaction with the transmitter 200, and the other is an energy conversion antenna 11B for wireless energy reception.

[0146] As shown in FIG. 7, at least part of the plurality of antenna subarrays 11 is the energy conversion antenna 11B. Alternatively, part of the plurality of antenna subarrays 11 is the energy conversion antenna 11B, and the remaining part is the communication antenna 11A. Taking five antenna subarrays 11 as an example, four of them are energy conversion antennas 11B, and one is a communication antenna 11A.

[0147] As shown in FIG. 7, the feeding network 2 includes the first feeding port 21 and the second feeding port 22 which are arranged one-to-one corresponding to the feeding structure 112 of the energy conversion antenna 11B, the first feeding part 201 which is electrically connected with the first feeding port 21, the first phase delay line 202 which is electrically connected with the second feeding port 22, and the first power divider 203 which is cascaded with N stages. N is a positive integer greater than or equal to 2. The first feeding port 21 is connected with the first feeding line 1121 of the energy conversion antenna 11B in a binding manner, and the second feeding port 22 is connected with the second feeding line 1122 of the energy conversion antenna 11B in a binding manner. The first-stage first power divider 203 is connected with the power management chip 20 in a binding manner, and the N-stage first power divider 203 is electrically connected with the first feeding part 201 and the first phase delay line 202 corresponding to the same energy conversion antenna 11B.

[0148] Taking four energy conversion antennas 11B as an example, N is 3, and a three-stage two-way first power divider 203 can be selected. The first end of the first-stage first power divider 203 is connected with the power management chip 20 in a binding manner, and the two branch ends of the first-stage first power divider 203 are respectively electrically connected with the first ends of two second-stage first power dividers 203. The two branch ends of the second-stage first power divider 203 are respectively electrically connected with the first ends of two third-stage first power dividers 203. The two branch ends of the third-stage first power divider 203 are respectively electrically connected with the first end of the first feeding part 201 and the first end of the first phase delay line 202. The second end of the first feeding part 201, i.e., the first feeding port 21, is connected with the first feeding line 1121 of the energy conversion antenna 11B in a binding manner. The second end of the first phase delay line 202, i.e., the second feeding port 22, is connected with the second feeding line 1122 of the energy conversion antenna 11B in a binding manner.

[0149] Optionally, the first feeding port 21 and the second feeding port 22 corresponding to the same feeding structure 112 have a phase difference of 90°. As shown in FIG. 7, the first phase delay line 202 is a 90° phase delay line. Specifically, the first phase delay line 202 includes three first delay sub-sections 202a, a second delay sub-section 202b and a third delay sub-section 202c which are connected in sequence, wherein the extension directions of the first delay sub-section 202a and the third delay sub-section 202c are the same, and are perpendicular to the extension direction of the second delay sub-section 202b. The extension direction of the second delay sub-section 202b is the same as the extension direction of the first feeding part 201, so that the first feeding port 21 and the second feeding port 22 form a phase difference of 90°.

[0150] In this embodiment, the 90° phase delay line is designed at the feeding network 2, and then the power synthesis is performed through the first power divider 203, so as to realize the narrow beam with high gain.

[0151] It should be noted that the present disclosure only shows one way to realize circular polarization, of course, the method of realizing circularly polarized radiation includes but is not limited to the embodiment, for example, there can also be a corner cutting method, a slot method, a load loading, a cross slot, etc., however, in actual application, it needs to be considered that the radiation unit 111 of the present disclosure is integrated in the display area AA, under the condition of ensuring that the way of realizing circular polarization does not affect the normal display of the display area AA, similar modifications and improvements can be made, which are also considered within the protection scope of the present disclosure.

[0152] In some embodiments, Figure 9a is a specific plan view of the display panel in the unfolded state under Example 2 provided by the embodiment of the present disclosure, which is different from the structure shown in Figure 7 in that the phase shifters are integrated on the feed network 2. Figure 9b is a cross-sectional view of the phase shifters integrated on the feed network provided by the embodiment of the present disclosure. As shown in Figures 9a and 9b, at least part of the plurality of antenna subarrays 11 is the energy conversion antenna 11B. The feed network 2 includes a first feed port 21 and a second feed port 22 which are arranged one by one corresponding to the feed structure 112 of the energy conversion antenna 11B, a first phase shifter 60 electrically connected with the first feed port 21, a second phase shifter 70 electrically connected with the second feed port 22, and N-stage first power dividers 203 which are cascaded with each other; N is a positive integer greater than or equal to 2; the first feed port 21 is boundedly connected with the first feed line 1121 of the energy conversion antenna 11B, and the second feed port 22 is boundedly connected with the second feed line 1122 of the energy conversion antenna 11B; the first-stage first power divider 203 is boundedly connected with the power management chip 20; the N-stage first power divider 203 is electrically connected with the first phase shifter 60 and the second phase shifter 70 corresponding to the same energy conversion antenna 11B.

[0153] Taking four energy conversion antennas 11B as an example, N is 3, and a 3-stage 1-to-2 first power divider 203 can be selected. The first end of the first-stage first power divider 203 is boundedly connected with the power management chip 20, and the two branch ends of the first-stage first power divider 203 are respectively electrically connected with the first ends of two second-stage first power dividers 203; the two branch ends of the second-stage first power divider 203 are respectively electrically connected with the first ends of two third-stage first power dividers 203; the two branch ends of the third-stage first power divider 203 are respectively electrically connected with the first end of the first phase shifter 60 and the first end of the second phase shifter 70 corresponding to the same energy conversion antenna 11B. The second end of the first phase shifter 60, i.e., the first feed port 21, is boundedly connected with the first feed line 1121 of the energy conversion antenna 11B; the second end of the second phase shifter 70, i.e., the second feed port 22, is boundedly connected with the second feed line 1122 of the energy conversion antenna 11B.

[0154] The embodiment adopts phase shifters to realize switching of different polarizations and different beams. As shown in FIG. 9a, for the first feeding port 21 and the second feeding port 22 of each antenna subarray 11, a first phase shifter 60 and a second phase shifter 70 are respectively adopted to regulate the phase.

[0155] For example, for outputting a left-handed circular polarization main beam, specifically, the phase of each first phase shifter 60 is set to 0°, and the phase of each second phase shifter 70 is set to 90°.

[0156] For example, for outputting a right-handed circular polarization main beam, specifically, the phase of each first phase shifter 60 is set to 90°, and the phase of each second phase shifter 70 is set to 0°.

[0157] For example, for outputting a vertical polarization main beam, specifically, the phase of each first phase shifter 60 is set to 0°, and the phase of each second phase shifter 70 is set to 0°.

[0158] For example, for outputting a horizontal polarization main beam, specifically, the phase of each first phase shifter 60 is set to 0°, and the phase of each second phase shifter 70 is set to 180°.

[0159] For example, for realizing beam scanning on the basis of a vertical polarization beam, taking four energy conversion antennas 11B as an example, the four energy conversion antennas 11B sequentially arranged along the first direction X are respectively denoted as a first energy conversion antenna 11B, a second energy conversion antenna 11B, a third energy conversion antenna 11B and a fourth energy conversion antenna 11B. The phase PS1 of the first phase shifter 60 corresponding to the first energy conversion antenna 11B and the phase PS2 of the second phase shifter 70 are both set to 0°+α; the phase PS3 of the first phase shifter 60 corresponding to the second energy conversion antenna 11B and the phase PS4 of the second phase shifter 70 are both set to 0°+2α; the phase PS5 of the first phase shifter 60 corresponding to the third energy conversion antenna 11B and the phase PS6 of the second phase shifter 70 are both set to 0°+3α; the phase PS7 of the first phase shifter 60 corresponding to the fourth energy conversion antenna 11B and the phase PS8 of the second phase shifter 70 are both set to 0°+4α. Wherein, α represents a certain phase value. Here, realizing beam scanning on the basis of a vertical polarization beam can make the antenna array 1 have a wider coverage range, for example, making each antenna subarray 11 have a phase gradient, i.e. PS1 and PS2 are shifted by α, PS3 and PS4 are shifted by 2α, PS5 and PS6 are shifted by 3α, and PS7 and PS8 are shifted by 4α, and different directional beams can be realized according to the size of α.

[0160] For example, for beam scanning based on a left-hand circularly polarized beam, taking four energy conversion antennas 11B as an example, the four energy conversion antennas 11B arranged sequentially along the first direction X are respectively denoted as a first energy conversion antenna 11B, a second energy conversion antenna 11B, a third energy conversion antenna 11B, and a fourth energy conversion antenna 11B. The phase PS1 of the first phase shifter 60 corresponding to the first energy conversion antenna 11B is set to 0°+α, and the phase PS2 of the second phase shifter 70 is set to 90°+α; the phase PS3 of the first phase shifter 60 corresponding to the second energy conversion antenna 11B is set to 0°+2α, and the phase PS4 of the second phase shifter 70 is set to 90°+2α; the phase PS5 of the first phase shifter 60 corresponding to the third energy conversion antenna 11B is set to 0°+3α, and the phase PS6 of the second phase shifter 70 is set to 90°+3α; the phase PS7 of the first phase shifter 60 corresponding to the fourth energy conversion antenna 11B is set to 0°+4α, and the phase PS8 of the second phase shifter 70 is set to 90°+4α. Wherein, α represents a certain phase value, and adjacent feeding ports are different by 90° to form a circularly polarized beam scanning.

[0161] In some embodiments, FIG. 10a is a specific plan view of the display panel in the unfolded state under Example 3 provided by the embodiments of the present disclosure, which is different from the structure shown in FIG. 7 in that the feeding network 2 is bound to the beamforming chip 80. FIG. 10b is a cross-sectional view of the feeding network bound to the beamforming chip 80, as shown in FIGS. 10a and 10b, at least part of the plurality of antenna subarrays 11 is an energy conversion antenna 11B; the wireless charging terminal 100 further comprises a beamforming chip 80; the feeding network 2 comprises a first feeding port 21 and a second feeding port 22 corresponding to the feeding structure 112 of the energy conversion antenna 11B, a first feeding part 201 electrically connected to the first feeding port 21, a first phase delay line 202 electrically connected to the second feeding port 22, and a first power divider 203 electrically connected to the first feeding part 201 and the first phase delay line 202 corresponding to the same energy conversion antenna 11B; the first feeding port 21 is bound to the first feeder 1121 of the energy conversion antenna 11B, and the second feeding port 22 is bound to the second feeder 1122 of the energy conversion antenna 11B; the first power divider 203 is bound to the beamforming chip 80; the beamforming chip 80 is bound to the power management chip 20 through a radio frequency signal line.

[0162] Taking the four energy conversion antennas 11B as an example, four 1:2 first power division and combination devices 203 can be selected. One end of the first power division and combination device 203 is connected to one end of the beamforming chip 80, and the two branch ends of the first power division and combination device 203 are respectively electrically connected to the first end of the first feeding part 201 and the first end of the first phase delay line 202. The second end of the first feeding part 201, that is, the first feeding port 21, is connected to the first feeding line 1121 of the energy conversion antenna 11B; and the second end of the first phase delay line 202, that is, the second feeding port 22, is connected to the second feeding line 1122 of the energy conversion antenna 11B.

[0163] Optionally, the first feeding port 21 and the second feeding port 22 corresponding to the same feeding structure 112 have a phase difference of 90°. As shown in FIG. 10a, the first phase delay line 202 is a 90° phase delay line. Specifically, the first phase delay line 202 includes three segments of first delay sub-segments, second delay sub-segments and third delay sub-segments connected in sequence, wherein the first delay sub-segments and the third delay sub-segments have the same extension direction, and the extension direction of the second delay sub-segments is perpendicular to the extension direction of the first delay sub-segments and the third delay sub-segments. The extension direction of the second delay sub-segments is the same as the extension direction of the first feeding part 201, so that the first feeding port 21 and the second feeding port 22 form a phase difference of 90°.

[0164] The difference between the embodiment and the feeding network 2 shown in FIG. 9a is that the phase delay line and the beamforming chip 80 are used to realize the switching of circularly polarized beams and different beams. Taking the formation of a circularly polarized beam as an example, a 90° phase delay line is designed at the feeding network 2, and then power synthesis is performed through the power division and combination device, and the combination of the two is connected to the beamforming chip 80. By controlling the beamforming chip 80, the phase difference of different energy conversion antennas 11B is realized, so that the horizontal plane beam scanning is realized.

[0165] Of course, in addition to using the above-mentioned 90° phase delay line, other phases can also be used to realize the switching of different polarizations and different beams. The selection of the phase delay line is not listed here.

[0166] Figure 11 is a schematic diagram of the scanning effect of the beam at different angles according to an embodiment of the present disclosure. As shown in Figure 11, when all the energy conversion antennas 11B are fed with the same amplitude and the same phase, a normal main beam is formed, denoted as main_beam, and the 3dB beam width is about 26°, and the gain is about 9dBi. On this basis, when the beam is scanned by the phase shifter (as shown in Figure 9a) or the beamforming chip 80 (as shown in Figure 10a), according to the size of the phase difference of the energy conversion antennas 11B, the beam will move in the horizontal plane. The scanning effect of the beam at different angles (deflection angles of the normal direction of the main beam) beam1-beam6 is different, and the 3dB beam width is basically about 26°-32°. As the beam moves away from the normal axis, for example, beam6, the gain gradually decreases. When the gain roll-off is 3dB, the beam inclination angle is about ±35°. It can be seen that, compared with the normal main beam main_beam which can only form a beam with a width of about 26°, the design scheme of the integrated phase shifter or the beamforming chip 80 has a wider coverage space of the beam with scanning capability, and the 3dB beam width is increased from 26° to 70° (±35° coverage space).

[0167] However, as the beam moves away from the normal axis, the axial ratio gradually increases, and the circular polarization degree decreases. As shown in Figure 12, the axial ratio of the beam6 is relatively high. It should be noted that the endpoint trajectory of the instantaneous electric field vector of an arbitrary polarized wave is an ellipse, and the ratio of the major axis 2A to the minor axis 2B of the ellipse is called the axial ratio AR. The axial ratio is an important performance indicator of a circularly polarized antenna, which represents the purity of circular polarization. The bandwidth with an axial ratio of not more than 3dB is defined as the circular polarization bandwidth of the antenna. It is an important indicator for measuring the difference in signal gain of the whole machine in different directions. Ideally, it is a perfect circle, i.e. the axial ratio is 1 (0dB), and the present disclosure requires that the in-band axial ratio is less than 3dB. Based on this, the present disclosure adjusts the size of the phase difference of the energy conversion antennas 11B by controlling the phase shifter or the beamforming chip 80, so that the beam scanning not only improves the beam coverage space, but also ensures that the axial ratio meets the requirement that the in-band axial ratio is less than 3dB.

[0168] In some embodiments, FIG. 13 is a schematic diagram of an inter-board connection relationship in an example provided by the embodiments of the present disclosure, as shown in FIG. 13, the wireless charging terminal 100 includes a relay feeding board 90 and a master control board 110; the feeding network 2 is integrated on the relay feeding board 90, and the power management chip 20 is integrated on the master control board 110; the relay feeding board 90 is in a bonded connection with the display panel 10, specifically, the feeding network 2 integrated on the relay feeding board 90 is in a bonded connection with the feeding structure 112 on the display panel 10; the relay feeding board 90 is also in a bonded connection with the master control board 110, the master control board 110 includes a plurality of layers of dielectric layers and metal trace layers, and the bonded ends of the power management chip 20 and the relay block electric board are respectively arranged on opposite sides of the master control board 110, and the bonded ends are in an electrical connection with the power management chip 20 through penetrating the plurality of layers of dielectric layers.

[0169] In a state that the display panel 10 is in a bending state, the relay feeding board 90 and the master control board 110 are bent to the backlight side of the wireless charging terminal 100.

[0170] In the embodiments, the relay feeding board 90 and the master control board 110 are independently arranged, and different relay feeding boards 90 can be replaced according to different types of antennas required. For example, the relay feeding board 90 can be replaced between the relay feeding boards 90 shown in FIGS. 7, 9a and 10a; or, other polarization modes, such as horizontal polarization, vertical polarization and the like, can also be selected for the relay feeding board 90.

[0171] For example, the relay feeding board 90 can use a single-layer printed circuit board. The relay feeding board 90 includes a third reference electrode 901 and a substrate layer 902. The third reference electrode 901 is used as a reference ground for the feeding network 2.

[0172] In some embodiments, FIG. 14 is a schematic diagram of an inter-board connection relationship in another example provided by the embodiments of the present disclosure, as shown in FIG. 14, the wireless charging terminal 100 includes a master control board 110, and the feeding network 2 and the power management chip 20 are integrated on the master control board 110.

[0173] The main control board 110 includes multiple layers of dielectric layers and metal trace layers, wherein, one layer of metal trace layer closest to the radiation layer 1032 is arranged with the feeding network 2, and one layer of metal trace layer farthest from the radiation layer 1032 is arranged with the binding pins (not shown in the figure) of the power management chip 20. The binding end of the feeding network 2 is electrically connected with the binding pins through penetrating the multiple layers of dielectric layers. For example, the main control board 110 includes 6 layers of metal trace layers, wherein, the 4th, 5th and 6th layers mainly transmit radio frequency signals; the 6th layer is the binding area BB2, the 1st and 3rd layers are used for transmitting radio frequency signals and power signals, the 2nd layer is a ground layer, and the 1st layer is the surface layer signal trace, which needs to be welded with control IC, input and output interface, resistance, capacitance and inductance components. The more functions and components of the main control board 110, the more layers of the main control board 110, so that all components can be arranged and the crosstalk between them is small.

[0174] In the bent state of the display panel 10, the main control board 110 is bent to the backlight side of the wireless charging terminal 100.

[0175] In this embodiment, since the feeding network 2 and the power management chip 20 are integrated on the main control board 110, only the main control board 110 needs to be bound with the display panel 10 once in the process stage.

[0176] In some embodiments, as shown in FIG. 7, the plurality of antenna subarrays 11 further includes a communication antenna 11A; the feeding network 2 further includes a third feeding port 23 and a fourth feeding port 24 corresponding to the feeding structure 112 of the communication antenna 11A, a second feeding part 204 electrically connected with the third feeding port 23, a second phase delay line 205 electrically connected with the fourth feeding port 24, and a second power divider 206 electrically connected with the second feeding part 204 and the second phase delay line 205 corresponding to the same communication antenna 11A; the third feeding port 23 is bound and connected with the first feeding line 1121 of the communication antenna 11A, and the fourth feeding port 24 is bound and connected with the second feeding line 1122 of the communication antenna 11A; the second power divider 206 is bound and connected with the power management chip 20.

[0177] A 1:2 second power divider 206 is selected. The first end of the second power divider 206 is bound and connected with the power management chip 20, and the two branch ends of the second power divider 206 are respectively electrically connected with the first end of the second feeding part 204 and the first end of the second phase delay line 205; the second end of the second feeding part 204, i.e., the third feeding port 23, is bound and connected with the first feeding line 1121 of the communication antenna 11A; the second end of the second phase delay line 205, i.e., the fourth feeding port 24, is bound and connected with the second feeding line 1122 of the communication antenna 11A.

[0178] Optionally, the third feeding port 23 and the fourth feeding port 24 have a phase difference of 90°. As shown in FIG. 7, the second phase delay line 205 is a 90° phase delay line. Specifically, the second phase delay line 205 includes a fourth delay sub-section (not shown in the figure), a fifth delay sub-section (not shown in the figure) and a sixth delay sub-section (not shown in the figure) connected in sequence, wherein the fourth delay sub-section and the sixth delay sub-section have the same extension direction, and the extension direction of the fifth delay sub-section is perpendicular to the extension direction of the fourth delay sub-section and the sixth delay sub-section, and the extension direction of the fifth delay sub-section is the same as the extension direction of the second feeding part 204, so that the third feeding port 23 and the fourth feeding port 24 form a phase difference of 90°.

[0179] In this embodiment, the 90° phase delay line is designed at the feeding network 2, and then the power is combined by the second power splitter-combiner 206, so as to realize a narrow beam with high gain.

[0180] In some embodiments, FIG. 15 is a specific planar schematic diagram of the display panel in the unfolded state under Example 4 provided by the embodiment of the present disclosure. The communication antenna 11A can also use a single-port antenna, and the corresponding part of the feeding network 2 selects a third feeding part 207 of a single port.

[0181] Specifically, the feeding network 2 further includes a fifth feeding port 25 corresponding to the feeding structure 112 of the communication antenna 11A, and a third feeding part 207 electrically connected to the fifth feeding port 25. The feeding structure 112 of the communication antenna 11A includes a third feeding line, which feeds a plurality of radiation units 111. The third feeding line extends from the display area AA to the binding area BB2 and is bound and connected to the fifth feeding port. The fifth feeding port is bound and connected to the power management chip 20 through the third feeding part 207.

[0182] Of course, the structure of the communication antenna 11A and the feeding network 2 as shown in FIG. 15 can also be applied to the structure of the communication antenna 11A and the feeding network 2 in FIGS. 9a and 10a, and the repeated parts will not be described again.

[0183] In some embodiments, FIG. 16 is a schematic diagram of antenna multiplexing of the embodiment of the present disclosure. As shown in FIG. 16, each of the plurality of antenna sub-arrays 11 is an energy conversion antenna 11B, and at least one energy conversion antenna 11B is multiplexed as a communication antenna 11A for information interaction with an external transmitter 200.

[0184] In some embodiments, each of the plurality of antenna sub-arrays 11 is an energy conversion antenna 11B. The communication antenna 11A uses the original antenna of the wireless charging terminal 100 to interact with the external transmitter 200. In this way, the display area AA only integrates the energy conversion antenna 11B, providing layout space for energy conversion.

[0185] For example, the communication antenna 11A can use the 2G, 3G, 4G or 5G communication antenna 11A originally carried by the wireless charging terminal 100 itself, so that the wireless charging terminal 100 saves a transceiver link, simplifies the circuit complexity, and is lower in cost. For the wireless charging terminal 100, the communication antenna 11A and the energy conversion antenna 11B are arranged separately, which can also simplify the complexity of the whole machine. At the same time, the communication antenna 11A and the energy conversion antenna 11B both use existing communication frequency bands for information exchange, and the frequency band, process and module are relatively mature, which can greatly reduce the cost.

[0186] In some embodiments, the energy conversion antenna 11B is a millimeter wave antenna. For example, the energy conversion antenna 11B has a working frequency band of 5.8 GHz or above.

[0187] For the above embodiments and their combinations, it can be known that the present disclosure integrates a wireless energy collection link on the basis of an existing communication terminal, receives wireless energy (for example, a wireless charging signal) from the transmitter 200 through the antenna array 1 arranged on the side of the screen, rectifies the wireless energy into direct current to supply other modules of the wireless charging terminal 100, or stores the wireless energy into the battery of the wireless charging terminal 100, and realizes long-distance wireless charging. The display integrated wireless charging terminal 100 mainly consists of the antenna array 1 integrated with the screen, the feed network 2 and the power management chip 20. The antenna array 1 is arranged in the display area AA of the screen, can fully utilize the effective space of the screen, has a large receiving aperture efficiency, and is prepared by grid metalization, has high transmittance, and has less influence on display. The feed network 2 and the power management chip 20 are located inside the terminal, the whole process flow is compatible with the existing display terminal production flow, has high integration degree, and can make the display terminal have more functions.

[0188] In addition, the present disclosure also provides a wireless charging system, and FIG. 17 is a schematic diagram of the wireless charging system provided by the embodiment of the present disclosure. As shown in FIG. 17, the wireless charging system includes the transmitter 200 and the wireless charging terminal 100. The wireless charging terminal 100 can be any of the above embodiments and the structural components thereof.

[0189] When the transmitter 200 and the wireless charging terminal 100 operate in the same network coverage, and in the case that the wireless charging terminal 100 requests for charging, the transmitter 200 is configured to send a wireless charging signal to the wireless charging terminal 100. The wireless charging terminal 100 receives the wireless charging signal through the on-screen integrated antenna array 1 and transmits to the power management chip 20; the power management chip 20 rectifies the wireless charging signal into direct current for the power consuming module 30. The power consuming module 30 includes but is not limited to a battery, other power consuming devices. Exemplarily, the wireless charging terminal 100 specifically relates to a long-distance wireless charging, where the definition of "long-distance" can be understood as within the coverage of the communication network.

[0190] As shown in FIG. 2, the wireless charging terminal 100 includes an antenna array 1, a power management chip 20 and a power consuming module 30; wherein the antenna array 1 includes a plurality of antenna sub-arrays 11; the antenna sub-array 11 includes at least one radiating element 111 located in the display area AA and a feeding structure 112 extending from the display area AA to the non-display area BB; the radiating element 111 and the feeding structure 112 belonging to the same antenna sub-array 11 are electrically connected.

[0191] In specific implementation, the transmitter 200 is configured to send a wireless charging signal to the radiating element 111; the radiating element 111 is configured to receive the wireless charging signal and feed into the power management chip 20 through the feeding structure 112; the power management chip 20 is configured to convert the wireless charging signal into electric energy and supply power to the power consuming module 30.

[0192] In some embodiments, the wireless charging terminal 100 further includes a feeding network 2; the transmitter 200 is configured to send a wireless charging signal to the radiating element 111; the radiating element 111 is configured to receive the wireless charging signal and transmit to the feeding network 2 through the feeding structure 112; the feeding network 2 is configured to feed the wireless charging signal into the power management chip 20; the power management chip 20 is configured to convert the wireless charging signal into electric energy and supply power to the power consuming module 30.

[0193] In some embodiments, FIG. 18 is a schematic diagram of a power management chip according to an embodiment of the present disclosure. As shown in FIG. 18, the power management chip 20 includes a communication module 2001, an energy conversion module 2002, and a receiving processor 2003. The antenna array 1 integrated on the screen side can obtain the wireless charging signal transmitted from the transmitter 200 through a single or composite transmission path. The energy conversion module 2002 converts the wireless charging signal into electrical energy and performs energy distribution, which can be distributed to other electrical devices or stored in the battery for energy storage. The communication module 2001 obtains the corresponding control signal from the signal transmitted by the transmitter 200, so that the receiving processor 2003 can adjust the working state of the wireless charging terminal 100 according to the information. For example, when the position of the wireless charging terminal 100 changes, or the power information of the wireless charging terminal 100 changes, the receiving processor 2003 can send the changed information to the transmitter 200 in the form of a feedback signal, so that the transmitter 200 adjusts the composite signal according to the feedback signal to meet the needs of the wireless charging terminal 100.

[0194] For example, in a charging process, specifically, the receiving processor 2003 is configured to send a response signal to the communication module 2001 according to the current power state of the wireless charging terminal 100. When the current power state indicates that the power is insufficient, the communication module 2001 is configured to receive the response signal and transmit the response signal to the communication antenna 11A in the antenna array 1 to the transmitter 200. When the transmitter 200 is located within the coverage range of the response signal, the transmitter 200 is configured to send a data packet to the communication antenna 11A in the antenna array 1 in response to the response signal. The communication module 2001 is further configured to send the data packet to the receiving processor 2003 in response to receiving the data packet. The receiving processor 2003 is further configured to authenticate the transmitter 200 according to the received data packet, and send the authentication pass information to the energy conversion module 2002 and feedback to the transmitter 200. The transmitter 200 is further configured to select corresponding power parameters such as wireless terminal device type, position, angle, signal strength, etc. of the wireless terminal device after the authentication passes, and transmit the wireless charging signal to the energy conversion antenna 11B in the antenna array 1. The energy conversion module 2002 is configured to convert the wireless charging signal into electrical energy and supply power to the power module 30 in response to receiving the wireless charging signal after the authentication of the transmitter 200 passes.

[0195] The frequency f0 of the communication antenna 11A and the frequency f1 of the energy conversion antenna 11B can be the same or different, as long as they are matched with the transmitting antenna of the transmitter 200 and meet the information transmission requirement. As shown in FIG. 7, the communication antenna 11A and the energy conversion antenna 11B adopt the same antenna form, in which the first group is used for communication and the other four groups are used for wireless energy collection. If the frequency f0 of the communication transmitting antenna and the frequency f1 of the energy conversion transmitting antenna are different at the transmitter 200 side, the frequency f0 of the communication antenna 11A and the frequency f1 of the energy conversion antenna 11B in the antenna array 1 at the screen side need to be designed to the frequency matched with the transmitting antenna of the transmitter 200.

[0196] In some embodiments, FIG. 19 is a schematic diagram of another power management chip provided by the embodiments of the present disclosure. As shown in FIG. 18, the communication antenna 11A is not arranged at the screen side of the wireless charging terminal 100, but the 2G, 3G, 4G or 5G communication antenna 11A originally carried by the wireless charging terminal 100 itself is adopted. Therefore, the power management chip 20 does not arrange a communication module, i.e., the power management chip 20 includes the energy conversion module 2002 and the receiving processor 2003.

[0197] The embodiments of the present disclosure provide a long-distance wireless charging terminal 100, which is compatible with the existing display terminal in structure and realizes higher degree of integration in function.

[0198] It can be understood that the above embodiments are only exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered to be within the protection scope of the present disclosure.

Claims

1. A wireless charging terminal, comprising a display panel, a power management chip and a power consumption module; The display panel has a display area and a non-display area surrounding the display area; The display panel comprises a substrate, a display functional layer disposed on the substrate, and an antenna layer disposed on the side of the display functional layer away from the substrate; The antenna layer comprises an antenna array, the antenna array comprises a plurality of antenna sub-arrays; the antenna sub-array comprises at least one radiation unit located in the display area and a feeding structure extending from the display area to the non-display area; The radiating units belonging to the same antenna subarray are electrically connected with the feeding structure; The radiating units are used to receive wireless charging signals provided by an external transmitter and feed the power management chip through the feeding structure; The power management chip is used to convert the wireless charging signals into electric energy and supply power to the power consumption module.

2. The wireless charging terminal of claim 1, wherein, The antenna layer comprises an antenna substrate and a radiating layer disposed on the side of the antenna substrate away from the substrate; The radiating units and the feeding structure are both located in the radiating layer.

3. The wireless charging terminal of claim 2, wherein, The radiating units in the antenna subarray comprise a plurality of radiating units; The feeding structure comprises a first feeding line and a second feeding line; For any antenna subarray, the first feeding line and the second feeding line are respectively connected in series with a plurality of radiating units in turn.

4. The wireless charging terminal of claim 3, wherein, The wireless charging terminal further comprises a first dielectric layer disposed on the side of the antenna substrate close to the display functional layer; The first dielectric layer is located in the display area; The first feeding line comprises a first sub-section located in the display area and a second sub-section located in the non-display area; Except for the connection position of the first sub-section and the second sub-section, the line width of the first sub-section is greater than that of the second sub-section; The second feeding line comprises a third sub-section located in the display area and a fourth sub-section located in the non-display area; Except for the connection position of the third sub-section and the fourth sub-section, the line width of the third sub-section is greater than that of the fourth sub-section.

5. The wireless charging terminal of claim 4, wherein, The second sub-section at least comprises a first monotonically decreasing area; The line width of the second sub-section located in the first monotonically decreasing area monotonically decreases along the extension direction away from the display area, and the ratio of the line width of the first sub-section to the narrowest line width of the second sub-section is between 8 and 1.25; The fourth sub-section at least comprises a second monotonically decreasing area; The line width of the fourth sub-section located in the second monotonically decreasing area monotonically decreases along the extension direction away from the display area, and the ratio of the line width of the third sub-section to the narrowest line width of the fourth sub-section is between 8 and 1.

25.

6. The wireless charging terminal of claim 5, wherein, The line width of the first sub-section is the same as that of the third sub-section; The narrowest line width of the second sub-section is the same as that of the fourth sub-section.

7. The wireless charging terminal according to any one of claims 4 to 6, wherein The shapes of the radiating units, the first sub-section and the third sub-section are all grid-shaped.

8. The wireless charging terminal according to any one of claims 2 to 6, wherein The radiating layer further comprises a plurality of interval arranged redundant structure parts, the redundant structure parts are located in the display area, and the shapes of the redundant structure parts are grid-shaped; A plurality of the redundant structure parts are distributed around the radiating units and the feeding structure, and are respectively arranged at intervals from the radiating units and the feeding structure.

9. The wireless charging terminal according to any one of claims 2 to 6, wherein The antenna substrate is a transparent substrate. 10.The wireless charging terminal of claim 1, wherein, The non-display area comprises a bending area and a binding area located on the side of the bending area away from the display area. The display panel further comprises a feed network arranged on a side of the antenna layer away from the substrate; The feed structure extends from the display area to the binding area, is connected with the feed network in a binding mode, the feed network is connected with the power management chip in a binding mode; and when the display panel is in a bending state, the feed network and the power management chip are bent to a backlight side of the wireless charging terminal. 11.The wireless charging terminal of claim 10, wherein, At least part of the plurality of antenna subarrays is an energy conversion antenna; The feed network comprises a first feed port and a second feed port arranged one-to-one corresponding to the feed structure of the energy conversion antenna, a first feed part electrically connected with the first feed port, a first phase delay line electrically connected with the second feed port, and a first power divider cascaded with N stages; N is a positive integer greater than or equal to 2; The first feed port is connected with a first feed line of the energy conversion antenna in a binding mode, and the second feed port is connected with a second feed line of the energy conversion antenna in a binding mode; the first-stage first power divider is connected with the power management chip in a binding mode; the N-stage first power divider is electrically connected with the first feed part and the first phase delay line corresponding to the same energy conversion antenna. 12.The wireless charging terminal of claim 11, wherein, The first feed port and the second feed port corresponding to the same feed structure have a phase difference of 90°. 13.The wireless charging terminal of claim 10, wherein, At least part of the plurality of antenna subarrays is an energy conversion antenna; The feed network comprises a first feed port and a second feed port arranged one-to-one corresponding to the feed structure of the energy conversion antenna, a first phase shifter electrically connected with the first feed port, a second phase shifter electrically connected with the second feed port, and a first power divider cascaded with N stages; N is a positive integer greater than or equal to 2; The first feed port is connected with a first feed line of the energy conversion antenna in a binding mode, and the second feed port is connected with a second feed line of the energy conversion antenna in a binding mode; the first-stage first power divider is connected with the power management chip in a binding mode; the N-stage first power divider is electrically connected with the first feed part and the first phase delay line corresponding to the same energy conversion antenna. 14.The wireless charging terminal of claim 10, wherein, At least part of the plurality of antenna subarrays is an energy conversion antenna; the antenna charging terminal further comprises a beamforming chip; The feed network comprises a first feed port and a second feed port arranged one-to-one corresponding to the feed structure of the energy conversion antenna, a first feed part electrically connected with the first feed port, a first phase delay line electrically connected with the second feed port, and a first power divider electrically connected with the first feed part and the first phase delay line corresponding to the same energy conversion antenna; The first feed port is connected with a first feed line of the energy conversion antenna in a binding mode, and the second feed port is connected with a second feed line of the energy conversion antenna in a binding mode; the first power divider is connected with the beamforming chip in a binding mode; the beamforming chip is connected with the power management chip through a radio frequency signal line in a binding mode.

15. The wireless charging terminal according to any one of claims 10 to 14, wherein The wireless charging terminal comprises a relay feeding plate and a master control plate; the feeding network is integrated on the relay feeding plate, and the power management chip is integrated on the master control plate; In the bending state of the display panel, the relay feeding plate and the master control plate are bent to the backlight side of the wireless charging terminal.

16. The wireless charging terminal according to any one of claims 10 to 14, wherein The wireless charging terminal comprises a master control plate, and the feeding network and the power management chip are integrated on the master control plate; in the bending state of the display panel, the master control plate is bent to the backlight side of the wireless charging terminal.

17. The wireless charging terminal according to any one of claims 10 to 14, wherein The plurality of antenna sub-arrays further comprises a communication antenna; The feeding network further comprises a third feeding port and a fourth feeding port corresponding to the feeding structure of the communication antenna, a second feeding part electrically connected to the third feeding port, a second phase delay line electrically connected to the fourth feeding port, and a second power divider electrically connected to the second feeding part and the second phase delay line corresponding to the communication antenna; The third feeding port is bound to the first feeding line of the communication antenna, and the fourth feeding port is bound to the second feeding line of the communication antenna; the second power divider is bound to the power management chip.

18. The wireless charging terminal according to any one of claims 11 to 14, wherein, At least one of the plurality of energy conversion antennas is multiplexed as a communication antenna.

19. A wireless charging system comprising a transmitter and a wireless charging terminal according to any one of claims 1-18; The transmitter is configured to send a wireless charging signal to the radiation unit; The radiation unit is configured to receive a wireless charging signal and feed the power management chip through the feeding structure; The power management chip is configured to convert the wireless charging signal into electrical energy and supply power to the power-consuming module.

20. The wireless charging system of claim 19, wherein, The power management chip comprises a communication module, an energy conversion module, and a receiving processor; The receiving processor is configured to send a response signal to the communication module according to the current power state of the wireless charging terminal when the current power state indicates insufficient power; And, according to the received data packet, identity authentication is performed on the transmitter, and authentication pass information is sent to the energy conversion module and fed back to the transmitter; The communication module is configured to receive the response signal and transmit the response signal to the transmitter through the communication antenna in the antenna array; And, in response to receiving the data packet, the data packet is sent to the receiving processor; When the transmitter is located in the coverage range of the response signal, the transmitter is further configured to send a data packet to the communication antenna in the antenna array in response to the response signal; And, after identity authentication, a wireless charging signal is transmitted to the energy conversion antenna in the antenna array; The energy conversion module is configured to convert the wireless charging signal into electrical energy and supply power to the power-consuming module in response to receiving the wireless charging signal after the identity authentication of the transmitter is passed.

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