Antenna Unit, Method for Manufacturing the Same, Display Device, and Electronic Device

Abstract

The present invention relates to an antenna unit, a manufacturing method thereof, a display device, and an electronic device. The antenna unit includes a radiating body, at least one feed line, and a plurality of ground connection portions. The at least one feed line is electrically connected to the radiating body, and the radiating body, the at least one feed line, and the plurality of ground connection portions are provided on the same layer.

Description

Technical Field

[0001] (Cross-reference to Related Applications) This application claims the priority of PCT Patent Application No. PCT / CN2020 / 073931 filed on January 22, 2020, and Chinese Patent Application No. 202010370108.5 filed on April 30, 2020, the entire text of which is incorporated herein by reference as part of this application.

[0002] Embodiments of the present disclosure relate to an antenna unit, a manufacturing method thereof, a display device, and an electronic device.

Background Art

[0003] With the further development of information networks and the increasing amount of information, the 5G network is the first generation of wireless communication system using millimeter waves. Such a communication system can utilize the wider bandwidth provided by millimeter waves to solve the problem of data path congestion. The 5G network communication system has the transmission characteristics of ultra-large capacity and extremely high transmission rate, and is an important communication method in the future. Millimeter waves are electromagnetic waves with a wavelength ranging from 1 mm to 10 mm, and generally correspond to the radio wave spectrum from 30 GHz to 300 GHz. Since a part of this spectrum has a very wide bandwidth that can be continuously used, it can meet the transmission needs of the 5G network.

[0004] In recent years, with the development of wireless communication technology, the requirements for the antenna design of electronic devices have become increasingly high. For example, antennas such as microstrip antennas, microstrip slot antennas, and planar inverted F antennas are usually installed on the back of electronic devices. Due to the influence of the internal structure of electronic devices, the signal strength received on the front of electronic devices becomes weak, affecting the communication quality.

Summary of the Invention

Means for Solving the Problems

[0005] At least one embodiment of the present disclosure provides an antenna unit, which includes a radiating body, at least one feed line, and a plurality of ground connection parts. The at least one feed line is electrically connected to the radiating body, and the radiating body, the at least one feed line, and the plurality of ground connection parts are provided on the same layer.

[0006] For example, in the antenna unit according to at least one embodiment of the present disclosure, the at least one feed line includes a first feed line and a second feed line, the antenna unit is a dual-polarization antenna, the first feed line is located on a first side of the radiating body and is electrically connected to the radiating body, the second feed line is located on a second side of the radiating body and is electrically connected to the radiating body, the plurality of ground connection parts include a first ground connection part, a second ground connection part, a third ground connection part, and a fourth ground connection part, the first ground connection part and the second ground connection part are respectively located on both sides of the first feed line, and the third ground connection part and the fourth ground connection part are respectively located on both sides of the second feed line.

[0007] For example, in the antenna unit according to at least one embodiment of the present disclosure, the second ground connection part is electrically connected to the third ground connection part.

[0008] For example, in the antenna unit according to at least one embodiment of the present disclosure, the first feed line includes a first section close to the radiation body and a second section electrically connected to the first section. The first section is electrically connected to the radiation body, and the second section extends from the first section to between the first ground connection portion and the second ground connection portion. The second feed line includes a third section close to the radiation body and a fourth section electrically connected to the third section. The third section is electrically connected to the radiation body, and the fourth section extends from the third section to between the third ground connection portion and the fourth ground connection portion. The radiation body has a symmetric contour, and the first section and the third section are symmetric with respect to the symmetry axis of the radiation body. The symmetry axis of the radiation body is a diagonal line drawn from the included angle formed by the first side and the second side of the radiation body.

[0009] For example, in the antenna unit according to at least one embodiment of the present disclosure, the radiation body has a square contour.

[0010] For example, in the antenna unit according to at least one embodiment of the present disclosure, the first ground connection portion, the second ground connection portion, the third ground connection portion, and the fourth ground connection portion are arranged along a reference direction. The symmetry axis of the radiation body is perpendicular to the reference direction. At least one of the first section and the third section is perpendicular to the symmetry axis of the radiation body, and at least one of the second section and the fourth section is perpendicular to the reference direction.

[0011] For example, in the antenna unit according to at least one embodiment of the present disclosure, the first ground connection portion, the second ground connection portion, the third ground connection portion, and the fourth ground connection portion are arranged along a reference direction, the symmetry axis of the radiation body forms a first predetermined angle with respect to the reference direction, the first predetermined angle is in the range of 45 degrees ± δ, δ is a predetermined deviation value, at least one of the first section and the third section is perpendicular to the symmetry axis of the radiation body, and at least one of the second section and the fourth section is perpendicular to the reference direction.

[0012] For example, in the antenna unit according to at least one embodiment of the present disclosure, the third ground connection portion and the fourth ground connection portion are arranged along a reference direction, the first ground connection portion and the second ground connection portion are arranged perpendicular to the reference direction, the symmetry axis of the radiation body forms a first predetermined angle with respect to the reference direction, the first predetermined angle is in the range of 45 degrees ± δ, δ is a predetermined deviation value, at least one of the first section and the third section is perpendicular to the symmetry axis of the radiation body, the second section is parallel to the reference direction, and the fourth section is perpendicular to the reference direction.

[0013] For example, in the antenna unit according to at least one embodiment of the present disclosure, the position where the third section is electrically connected to the radiation body and the position where the first section is electrically connected to the radiation body are symmetric with respect to the symmetry axis of the radiation body.

[0014] For example, in the antenna unit according to at least one embodiment of the present disclosure, a first protrusion is provided on the side of the second ground connection portion facing the radiation body, two opposing sides of the first protrusion and the radiation body are parallel to each other, a second protrusion is provided on the side of the third ground connection portion facing the radiation body, and two opposing sides of the second protrusion and the radiation body are parallel to each other.

[0015] For example, in the antenna unit according to at least one embodiment of the present disclosure, the length of the first feed line is greater than the length of the second feed line. The first ground connection portion includes a first main body portion and a first stripe portion. The first stripe portion is located on the side facing the first feed line of the first main body portion and extends parallel to the first feed line. The second ground connection portion includes a second main body portion and a second stripe portion. The second stripe portion is located on the side facing the first feed line of the second main body portion and extends parallel to the first feed line.

[0016] For example, in the antenna unit according to at least one embodiment of the present disclosure, the distance between the first stripe portion and the first feed line is equal to the distance between the first main body portion and the first feed line. The distance between the second stripe portion and the second feed line is equal to the distance between the second main body portion and the second feed line.

[0017] For example, in the antenna unit according to at least one embodiment of the present disclosure, the distance between the first feed line and the first ground connection portion and the second ground connection portion is equal to an integer multiple of the line width of the first feed line. The distance between the second feed line and the third ground connection portion and the fourth ground connection portion is equal to an integer multiple of the line width of the second feed line.

[0018] For example, in the antenna unit according to at least one embodiment of the present disclosure, the distance between the second ground connection portion and the third ground connection portion is greater than 0.2 mm.

[0019] For example, in the antenna unit according to at least one embodiment of the present disclosure, any of the radiation main body, the first feed line, the second feed line, and the plurality of ground connection portions is a metal grid.

[0020] For example, in the antenna unit according to at least one embodiment of the present disclosure, the grid lines of the metal grid are respectively parallel to the contour line of the metal grid.

[0021] For example, in the antenna unit according to at least one embodiment of the present disclosure, the grid lines of the metal grid respectively form a second predetermined angle with the contour line of the metal grid.

[0022] For example, in the antenna unit according to at least one embodiment of the present disclosure, the unit cell of the metal grid is a square, triangle, rhombus, hexagon or octagon.

[0023] For example, in the antenna unit according to at least one embodiment of the present disclosure, at least a part of the radiation body is electrically connected to the at least one feed line.

[0024] For example, in the antenna unit according to at least one embodiment of the present disclosure, a part of the radiation body is electrically connected to the at least one feed line, and a part of the radiation body that is not electrically connected to the at least one feed line is signal-coupled to a part of the radiation body that is electrically connected to the at least one feed line.

[0025] For example, in the antenna unit according to at least one embodiment of the present disclosure, the radiation body includes an antenna radiation part, the at least one feed line includes a feeder part, each of the plurality of ground connection parts includes a reference signal pattern part, the feeder part is electrically connected to the antenna radiation part to provide a signal current to the antenna radiation part, the reference signal pattern part is provided at an interval from the feeder part and the antenna radiation part, and is located on both sides of the feeder part away from the antenna radiation part.

[0026] For example, the antenna unit in at least one embodiment of the present disclosure further includes a bonding portion, the bonding portion includes a signal bonding portion and a plurality of ground bonding portions, the plurality of ground bonding portions are electrically connected to each of the reference signal pattern portions, and the signal bonding portion is electrically connected to the feeder portion.

[0027] For example, in the antenna unit in at least one embodiment of the present disclosure, the distance between the reference signal pattern portion and the antenna radiation portion is 200 microns to 300 microns, and the distance between the reference signal pattern portion and the feeder portion is 250 microns to 400 microns.

[0028] For example, in the antenna unit in at least one embodiment of the present disclosure, the shape of the antenna radiation portion is any one of a trapezoid, a polygon, a circle, and an ellipse.

[0029] For example, in the antenna unit in at least one embodiment of the present disclosure, the antenna radiation portion, the feeder portion, and the reference signal pattern portion include a metal grid formed of a plurality of metal wires, the line width of the plurality of metal wires is 5 microns or less, and the distance between the plurality of metal wires is 200 microns or more.

[0030] For example, at least one embodiment of the present disclosure further provides a display device, the display device includes a display panel, an antenna layer, and a reflection layer. The antenna layer includes at least one of the above-described antenna units, at least one of the antenna units is provided on the display side of the display panel, the reflection layer is provided on the non-display side of the display panel, the display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, the reflection layer is the metal reflector, or the display panel includes an organic light-emitting diode display panel, and the reflection layer is the metal heat dissipation layer of the organic light-emitting diode display panel.

[0031] For example, the display device in at least one embodiment of the present disclosure further includes a cover plate, the cover plate is provided on the display side of the display panel, the antenna layer is provided on the side of the cover plate facing the display panel, and is located between the cover plate and the reflection layer.

[0032] For example, the display device in at least one embodiment of the present disclosure further includes a touch layer provided between the antenna layer and the display panel, and the touch layer and the antenna layer are insulated from each other.

[0033] For example, in the display device in at least one embodiment of the present disclosure, the display panel includes a display area and a non-display area, and at least a part of at least one of the antenna units is provided in the non-display area of the display panel.

[0034] For example, in the display device in at least one embodiment of the present disclosure, the radiation body of at least one of the antenna units includes an antenna radiation part, at least one feed line of at least one of the antenna units includes a feeder part, and each of the plurality of ground connection parts of at least one of the antenna units includes a reference signal pattern part, and the antenna radiation part, the feeder part, and the reference signal pattern part are provided in the display area of the display panel.

[0035] For example, in the display device in at least one embodiment of the present disclosure, at least one of the antenna units further includes a bonding part, and the bonding part is provided in the non-display area of the display panel.

[0036] For example, in the display device in at least one embodiment of the present disclosure, at least one of the antenna units includes a plurality of the antenna units, and at least one of the four edges of the display device is provided with at least one of the antenna units.

[0037] For example, in a display device according to at least one embodiment of the present disclosure, a plurality of the antenna units are provided on any one of the four edges of the display device.

[0038] For example, in a display device according to at least one embodiment of the present disclosure, the four edges of the display device include a first edge, a second edge opposite to the first edge, a third edge, and a fourth edge opposite to the third edge, and the antenna unit includes at least one of a first antenna array provided on the first edge, a second antenna array provided on the second edge, a third antenna array provided on the third edge, and a fourth antenna array provided on the fourth edge.

[0039] For example, in a display device according to at least one embodiment of the present disclosure, each of the first antenna array, the second antenna array, the third antenna array, and the fourth antenna array includes N antenna units arranged in a 1×N array, where N is an integer greater than or equal to 4.

[0040] For example, in a display device according to at least one embodiment of the present disclosure, each of the first antenna array, the second antenna array, the third antenna array, and the fourth antenna array has a symmetric pattern, the first antenna array and the second antenna array are symmetric with respect to a first central axis of the display device, and the third antenna array and the fourth antenna array are symmetric with respect to a second central axis perpendicular to the first central axis of the display device.

[0041] For example, in a display device according to at least one embodiment of the present disclosure, at least one of the antenna units includes four antenna units, and the four antenna units are respectively located in four corner regions of the display device.

[0042] For example, the display device in at least one embodiment of the present disclosure further includes a flexible substrate, and the antenna layer is provided on the flexible substrate.

[0043] For example, the display device in at least one embodiment of the present disclosure further includes a first adhesive layer, and the first adhesive layer is located on the side of the flexible substrate facing the cover plate.

[0044] For example, the display device in at least one embodiment of the present disclosure further includes a second adhesive layer, and the second adhesive layer is located on the side of the flexible substrate facing the reflective layer.

[0045] For example, the display device in at least one embodiment of the present disclosure further includes a flexible circuit board, and at least one feed line of at least one of the antenna units is electrically connected to a plurality of signal transmission lines of the display panel via the flexible circuit board.

[0046] For example, at least one embodiment of the present disclosure further provides an electronic device, and the electronic device includes a display panel, an antenna layer, and a reflective layer. The antenna layer includes at least one of the antenna units described above, at least one of the antenna layers is provided on the display side of the display panel, and the reflective layer is provided on the non-display side of the display panel.

[0047] For example, in the electronic device in at least one embodiment of the present disclosure, the frequency range corresponding to the operating wavelength of the antenna unit is 26.5 GHz to 29.5 GHz or 24.25 GHz to 27.5 GHz.

[0048] For example, in the electronic device according to at least one embodiment of the present disclosure, the display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, the reflective layer is the metal reflector, or the display panel includes an organic light emitting diode display panel, and the reflective layer is the metal heat dissipation layer of the organic light emitting diode display panel.

[0049] For example, in the electronic device according to at least one embodiment of the present disclosure, a positive projection of the light emitting surface of the display panel of at least one of the antenna units onto the plane where the light emitting surface of the display panel is located is within the positive projection of the reflective layer onto the plane where the light emitting surface of the display panel is located.

[0050] For example, in the electronic device according to at least one embodiment of the present disclosure, at least one feed line of at least one of the antenna units includes a first feed line and a second feed line, the antenna unit is a dual polarization antenna, the first feed line is located on a first side of the radiation body and is electrically connected to the radiation body, the second feed line is located on a second side of the radiation body and is electrically connected to the radiation body, the plurality of ground connection parts include a first ground connection part, a second ground connection part, a third ground connection part, and a fourth ground connection part, the first ground connection part and the second ground connection part are respectively located on both sides of the first feed line, and the third ground connection part and the fourth ground connection part are respectively located on both sides of the second feed line.

[0051] At least one embodiment of the present disclosure further provides a manufacturing method of an antenna unit, the manufacturing method includes providing a flexible substrate, forming a metal layer on the flexible substrate, etching the metal to form an antenna, and forming an adhesive protection layer on a side of the antenna away from the display panel.

[0052] For example, the manufacturing method in at least one embodiment of the present disclosure further includes forming an inactivation protection layer between the metal layer and the adhesive protection layer.

[0053] For example, the manufacturing method in at least one embodiment of the present disclosure further includes forming an antenna insulating layer on the side of the metal layer close to the display panel.

Brief Description of the Drawings

[0054] To more clearly show the technical solutions of the embodiments of the present disclosure, the accompanying drawings of the embodiments will be briefly described below. It will be obvious that the accompanying drawings in the following description relate to some embodiments of the present disclosure but do not limit the present disclosure.

[0055]

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Embodiments for Carrying out the Invention

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present disclosure in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present disclosure without creative efforts belong to the protection scope of the present disclosure.

[0057] Unless otherwise specifically defined, the technical or scientific terms used in the present disclosure have the ordinary meanings understood by those of ordinary skill in the technical field related to the present disclosure. Terms such as "first", "second", etc. used in the present disclosure and similar terms do not indicate order, number, or importance, but are only used to distinguish different components. Similarly, words such as "one", "a", "the", etc. do not indicate a quantitative limitation, but indicate that at least one exists. Similar terms such as "including" or "comprising" are intended to cover the components or objects that appear before the term without excluding other components or objects and their equivalents that appear after the term. Similar terms such as "connected" and "linked" are not limited to physical or mechanical connections, and may include electrical connections, directly or indirectly. Terms such as "above" and "below" are only for indicating relative positional relationships, and may change accordingly when the absolute position of the object to be described changes.

[0058] Millimeter waves pose many challenges to the implementation of future 5G terminal devices. One of the main factors affecting the terminal by millimeter waves is the antenna. The use of millimeter waves in 5G networks mainly focuses on several frequency bands of 24 GHz / 28 GHz / 39 GHz / 60 GHz. Since the antenna lengths corresponding to these frequency bands are very short, the antenna space can be reduced. Currently, in the millimeter wave band, the size of a single antenna has reached the millimeter level, making it possible to deploy antenna arrays on terminal devices such as smartphones, laptops, tablets, in-vehicle smart terminals, and wearable smart terminals. Millimeter waves have a large spatial transmission loss, which affects the coverage of millimeter waves. Many LTE (Long Term Evolution) terminals are only equipped with two antennas. However, to meet the need for a wider coverage range, some 5G millimeter wave antennas are equipped with more than eight antennas to form an antenna array. By using the antenna array, terminal devices can obtain more gains, improve the performance of the antenna, and compensate for the lack of coverage. Terminal devices can already be equipped with antennas in multiple frequency bands such as 2G / 3G / 4G, Bluetooth, WIFI, GPS (Global Positioning System), BeiDou, NFC (Near Field Communication), and wireless charging. On the other hand, the use of full screens has continuously reduced the clear space for the antennas of the terminal. At the same time, the use of metal frames and metal back covers restricts the placement positions of the antenna arrays for 5G millimeter waves.

[0059] The inventors of the present invention have focused on the fact that a millimeter-wave antenna array can be provided on a display panel during their studies. However, millimeter-wave antennas usually adopt the form of microstrip antennas. The antenna bandwidth of this form is narrow and cannot meet the requirement of simultaneously covering multiple operating bands of 5G millimeter waves. In this configuration, it is necessary to add a dielectric layer on the display panel to form a substrate, which increases the thickness of the display panel. The monopole antenna using a single-layer radiator has a wider operating band than the microstrip antenna, but due to the omnidirectionality of the directivity map, there is a risk of degrading the performance of the antenna in use.

[0060] At least one embodiment of the present disclosure provides an antenna unit, which includes a radiating body, at least one feed line, and a plurality of ground connection parts. The at least one feed line is electrically connected to the radiating body, and the plurality of ground connection parts, the radiating body, the at least one feed line, and the plurality of ground connection parts are provided on the same layer.

[0061] In the antenna unit in the above embodiment, the radiating body, the at least one feed line, and the plurality of ground connection parts are provided on the same layer. Compared with the prior art, the configuration is simple and the antenna design on the screen is possible.

[0062] At least one embodiment of the present disclosure further provides a display device, which includes a display panel, an antenna layer, and a reflection layer. The antenna layer includes the antenna unit described above. At least one antenna unit is provided on the display side of the display panel. The reflection layer is provided on the non-display side of the display panel. The display panel includes a liquid crystal panel and a backlight module. The backlight module includes a metal reflector, and the reflection layer is the metal reflector. Alternatively, the display panel includes an organic light-emitting diode display panel, and the reflection layer is the metal heat dissipation layer of the organic light-emitting diode display panel. Alternatively, the display panel includes a micro light-emitting diode (Micro LED) display panel or a mini light-emitting diode (Mini LED) display panel, and the reflection layer is a floating metal layer on the non-display side of the display panel.

[0063] At least one embodiment of the present disclosure further provides an electronic device, which includes a display panel, an antenna layer, and a reflection layer. The antenna layer includes the antenna unit described above. At least one antenna layer is provided on the display side of the display panel.

[0064] For example, in some embodiments, at least one feed line includes a first feed line and a second feed line, and the antenna unit is a dual-polarization antenna. The first feed line is located on the first side of the radiation body and is electrically connected to the radiation body. The second feed line is located on the second side of the radiation body and is electrically connected to the radiation body. The plurality of ground connection parts include a first ground connection part, a second ground connection part, a third ground connection part, and a fourth ground connection part. The first ground connection part and the second ground connection part are respectively located on both sides of the first feed line. The third ground connection part and the fourth ground connection part are respectively located on both sides of the second feed line. The embodiment of the present disclosure provides a display device, in which a dual-polarization antenna is provided in the same layer of the display device. Compared with the prior art, the structure is simple and the antenna design on the screen is possible.

[0065] FIG. 1A shows a cross-sectional view of an antenna unit in an embodiment of the present disclosure.

[0066] For example, as shown in FIG. 1A, the antenna unit includes a protective layer 10 and a dual-polarization antenna 30 located on one side of the protective layer 10. The dual-polarization antenna 30 may include a radiation body, a plurality of ground connection portions, and a first feed line and a second feed line extending from the radiation body, which will be described in detail below. As shown in FIG. 1A, the radiation body, the first feed line, the second feed line, and the plurality of ground connection portions of the dual-polarization antenna 30 are provided in the same layer. In some embodiments, as shown in FIG. 1A, the antenna unit may further include a reflective layer REF, and the reflective layer REF is located on the side away from the protective layer of the dual-polarization antenna 30.

[0067] Note that the reflective layer REF may also be regarded as provided in a display device including the above antenna unit.

[0068] One or more layers may be added to or removed from the above antenna unit according to requirements. For example, a dielectric layer may be provided between the dual-polarization antenna 30 and the reflective layer REF. In some embodiments, a flexible substrate may be provided on the side facing the protective layer 10 or away from the protective layer 10 of the dual-polarization antenna 30, and the flexible substrate may be fixed to the protective layer 10 by adhesion, for example. This will be described in detail below.

[0069] FIG. 1B shows a cross-sectional view of a display device in an embodiment of the present disclosure.

[0070] For example, as shown in Figure 1B, the display device includes a display panel 20 having a conductive material layer 210, and the above antenna unit having a protective layer 10 (e.g., a cover plate) and a dual-polarization antenna 30. The protective layer 10 is located on the light-emitting side of the display panel 20. For example, the protective layer 10 may be realized by the cover plate of the display device. The protective layer 10 may be made of a rigid material, such as glass. In some embodiments, the protective layer 10 may be made of a flexible material, such as colorless polyimide (CPI), polyethylene terephthalate (PET), or cyclo olefin polymer (COP).

[0071] For example, in some embodiments, the conductive material layer 210 may be realized as a reflective layer REF.

[0072] For example, the display panel 20 may be various suitable display panels such as, for example, a liquid crystal (LCD) display panel, an organic light-emitting diode (OLED) display panel, a mini light-emitting diode (Mini LED) display panel, or a micro light-emitting diode (Micro LED) display panel, etc., but is not limited thereto. The conductive material layer 210 includes one or more layers having a conductive material in the display panel 20, and the conductive material may be a metal, a metal oxide, a conductive polymer, etc. The conductive material layer 210 includes, in the display panel 20, layers where various circuits and wires made of a conductive material such as copper, ITO, Ag are located, the metal back plate of the display panel 20 (made of a stainless steel material), etc., but is not limited thereto.

[0073] For example, the dual-polarization antenna 30 may be provided in the same layer between the protective layer 10 and the conductive material layer 210 of the display panel 20. As a result, the conductive material layer 210 functions as an antenna reflector. In FIG. 1B, the dual-polarization antenna 30 is located between the display panel 20 and the protective layer 10. However, the embodiments of the present disclosure are not limited thereto, and the dual-polarization antenna 30 may be provided at other positions according to requirements. For example, it may be provided inside the display panel 20 and located between the conductive material layer 210 and the protective layer 10, as long as the conductive material layer 210 functions as an antenna reflector. The dual-polarization antenna 30 may be made of a low-resistance and low-loss metal such as copper, gold, or silver, and can be fabricated by methods such as magnetron sputtering, thermal evaporation, or electroplating, and can be etched to form a patterned configuration.

[0074] FIG. 2A shows a cross-sectional view of a display device according to another embodiment of the present disclosure.

[0075] As shown in FIG. 2A, the display device includes a display panel 20 and an antenna unit, and the antenna unit includes a protective layer 10 and a dual-polarization antenna 30. The descriptions of the protective layer 10, the display panel 20, and the dual-polarization antenna 30 with reference to FIGS. 1A and 1B may also be applicable to the display device of FIG. 2A. In FIG. 2A, the display panel 20 is an LCD display panel and includes a conductive material layer 210, a first substrate 220, a second substrate 230, a liquid crystal layer 240, and a backlight unit 250. The first substrate 220 is provided facing the protective layer 10, the liquid crystal layer 240 is provided between the first substrate 220 and the second substrate 230, and the backlight unit 250 is provided on the side of the second substrate 230 away from the first substrate 220. The conductive material layer 210 includes a metal plate provided on the side of the display panel 20 away from the protective layer 10. In FIG. 2A, the metal plate is provided on the side of the backlight unit 250 away from the protective layer 10 and can function as an antenna reflector for the dual-polarization antenna 30.

[0076] In some embodiments, the display device may include a flexible substrate 40, for example, a flexible thin film. The dual-polarization antenna 30 may be provided on the flexible substrate 40 to form an integrated antenna structure. In FIG. 2A, the dual-polarization antenna 30 is provided on the side facing the protective layer 10 of the flexible substrate 40. However, the embodiments of the present disclosure are not limited thereto. In some embodiments, the dual-polarization antenna 30 may be provided on the side away from the protective layer 10 of the flexible substrate 40. The flexible substrate 40 may be fixed by adhesion.

[0077] For example, in some embodiments, a buffer layer may be provided between the flexible substrate 40 and the dual-polarization antenna 30. For example, the material of the buffer layer includes silica, and the thickness of the buffer layer is, for example, about 100 Å. By providing the buffer layer, the adhesion between the flexible substrate 40 and the dual-polarization antenna 30 can be increased.

[0078] For example, in FIG. 2A, the display device may further include a first adhesive layer 50 and / or a second adhesive layer 60. The first adhesive layer 50 is located on the side facing the protective layer 10 of the flexible substrate 40. Thereby, the flexible substrate 40 provided with the dual-polarization antenna 30 is adhered to the protective layer 10 through the first adhesive layer 50. The second adhesive layer 60 is located on the side facing the conductive material layer 210 of the flexible substrate 40. Thereby, the flexible substrate 40 provided with the dual-polarization antenna 30 may be adhered to the underlying structure (in FIG. 2A, the touch module 70) through the second adhesive layer 60. Of course, the embodiments of the present disclosure are not limited thereto. The dual-polarization antenna 30 may be formed on the protective layer 10 of the display device by other methods, for example, by etching inside the display device.

[0079] In some embodiments, the display device may include a touch module 70. The touch module 70 may be provided between the dual-polarization antenna 30 and the display panel 20. However, this is merely exemplary, and the touch module 70 may be provided at other positions according to requirements. For example, it may be formed in an integrated structure with the display panel 20, and the description thereof is omitted here.

[0080] The control circuit 80 of the display device (for example, including a motherboard 820 and a radio frequency chip 810 provided on the motherboard 820) is provided on the back surface of the display device, that is, on the side away from the protective layer 10 of the display panel 20.

[0081] FIG. 2B shows a cross-sectional view of a display device in another embodiment of the present disclosure. The display device in FIG. 2B is similar to the display device in FIG. 2A. The difference is that the display panel 20' in the display device of FIG. 2B is at least an OLED display panel in some cases. For the sake of clear description, the differences will be mainly described in detail below.

[0082] As shown in FIG. 2B, the display panel 20' includes a conductive material layer 210', a first substrate 220', a second substrate 230', and an OLED light-emitting layer 240' provided between the first substrate 220' and the second substrate 230'. In FIG. 2B, the conductive material layer 210' may include a metal plate provided on the side away from the protective layer 10 of the second substrate 230', and the metal plate can function as an antenna reflector of the dual-polarization antenna 30.

[0083] FIG. 3A shows a configuration diagram of a dual-polarization antenna in an embodiment of the present disclosure.

[0084] As shown in FIG. 3A, the dual-polarization antenna 30A includes a radiating body 310, at least one feed line, and a plurality of ground connection portions. The at least one feed line includes a first feed line 320 and a second feed line 330. The first feed line 320 is located on a first side of the radiating body 310 and is electrically connected to the radiating body 310. The second feed line 330 is located on a second side of the radiating body 310 and is electrically connected to the radiating body 310. In the example of FIG. 3A, the plurality of ground connection portions include a first ground connection portion 3401, a second ground connection portion 3402, a third ground connection portion 3403, and a fourth ground connection portion 3404, which are hereinafter collectively referred to as the ground connection portion 340. The first ground connection portion 3401 and the second ground connection portion 3402 are respectively located on both sides of the first feed line 320, and the third ground connection portion 3403 and the fourth ground connection portion 3404 are respectively located on both sides of the second feed line 339.

[0085] For example, as shown in FIG. 3A, the radiating body 310, the first feed line 320, the second feed line 330, and the plurality of ground connection portions 340 are located in the same layer in the display device. The first feed line 320 extends from a first side of the radiating body 310, and the second feed line 330 extends from a second side adjacent to the first side of the radiating body 310. The first ground connection portion 3401 and the second ground connection portion 3402 are respectively located on both sides of the first feed line 320, and the third ground connection portion 3403 and the fourth ground connection portion 3404 may be respectively located on both sides of the second feed line 330. Thereby, a coplanar waveguide structure is formed by the feed line and the ground connection portion. For example, a first coplanar waveguide is formed by the first ground connection portion 3401 and the second ground connection portion 3402 and a part of the first feed line 320 between both of them, and a second coplanar waveguide is formed by the third ground connection portion 3403 and the fourth ground connection portion 3404 and a part of the second feed line 330 between both of them. With this coplanar waveguide structure, the resonance parameters of the dual-polarization antenna can be adjusted, the bandwidth can be increased, and the radiation performance of the antenna can be improved.

[0086] For example, as shown in FIG. 3A, the radiation body 310 may have a symmetric contour, and the first side and the second side of the radiation body 310 are two adjacent sides of the symmetric contour of the radiation body 310. One of the two diagonals of the radiation body 310 is used as the symmetry axis L of the radiation body 310. As shown by the dashed line in FIG. 3A, the diagonal line drawn from the included angle formed by the first side and the second side of the radiation body 310 may also be used as the symmetry axis L. The first feed line 320 includes a first section 3201 and a second section 3202. Here, the first section 3201 extends from the first side of the radiation body 310, and the second section 3202 extends from the first section 3201 to the gap between the first ground connection portion 3401 and the second ground connection portion 3402. The second feed line 330 includes a third section 3301 and a fourth section 3302. Here, the third section 3301 extends from the second side of the radiation body 310, and the fourth section 3302 extends from the third section 3301 to the gap between the third ground connection portion 3403 and the fourth ground connection portion 3404. The first section 3201 and the third section 3301 may be symmetric with respect to the symmetry axis of the radiation body 310, so that the antenna structure has good symmetry and improves the radiation performance.

[0087] For example, in some embodiments, the radiation body 310 may also have a square contour.

[0088] In FIG. 3A, x indicates a predetermined reference direction, and y indicates a direction perpendicular to the reference direction. Note that the reference direction may be any direction. For the purpose of describing the radiation body of the dual-polarization antenna, the first feed line, the second feed line, and the shape and positional relationship of the plurality of ground connection portions with reference to the reference direction. In actual applications, depending on the position and arrangement direction of the dual-polarization antenna, the reference direction may have different physical meanings. In the embodiments of the present disclosure, the arrangement direction of the third ground connection portion and the fourth ground connection portion may be used as the reference direction. To more clearly describe the structure of the dual-polarization antenna, the positions and shapes of other parts of the dual-polarization antenna are described with reference to the reference direction.

[0089] For example, as shown in FIG. 3A, the first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 are arranged along the x direction. The symmetry axis of the radiation main body 310 is perpendicular to the x direction. The first section 3201 and the third section 3301 (for example, at least one of the first section 3201 and the third section 3301) are perpendicular to the symmetry axis of the radiation main body 310, that is, parallel to the x direction, and the second section 3202 and the fourth section 3302 (for example, at least one of the second section 3202 and the fourth section 3302) are perpendicular to the x direction. Any of the first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 may have a rectangular contour. The first ground connection portion 3401 and the second ground connection portion 3402 extend perpendicular to the second section 3202 of the first feed line 320. The second ground connection portion 3402 and the third ground connection portion 3403 extend perpendicular to the fourth section 3302 of the second feed line 330. The first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 may have the same width. The lengths of the first ground connection portion 3401 and the fourth ground connection portion 3404 are the same, and the lengths of the second ground connection portion 3402 and the third ground connection portion 3403 are the same. The lengths of the first section 3201 and the third section 3301 may be the same, and the lengths of the second section 3202 and the fourth section 3202 may be the same. Here, the length is the size in the extending direction, and the width here is the size in the direction perpendicular to the extending direction. Thereby, a dual-polarized antenna with a polarization direction of ±45 degrees is realized, which has an axisymmetric pattern with respect to the symmetry axis L and improves the radiation performance.

[0090] For example, in some embodiments, as shown in FIG. 3A, the distance D1 between the first feed line 320 and the first ground connection portion 3401 may be equal to the distance D2 between the first feed line 320 and the second ground connection portion 3402. In some embodiments, D1 and D2 may be equal to an integer multiple of the line width W1 of the first feed line 320, that is, D1 = D2 = K1 * W1, where K1 is an integer and K1 ≥ 1. Similarly, the distance D3 between the second feed line 330 and the third ground connection portion 3403 may be equal to the distance D4 between the second feed line 330 and the fourth ground connection portion 3404. In some embodiments, D3 and D4 may be equal to an integer multiple of the line width W2 of the second feed line 330, that is, D3 = D4 = K2 * W2, where K2 is an integer and K2 ≥ 1. K1 and K2 may or may not be equal. In some embodiments, W1 = W2. In some embodiments, D1 = D2 = D3 = D4 = W1 = W2.

[0091] For example, in some embodiments, as shown in FIG. 3A, the distance D5 between the second ground connection portion 3402 and the third ground connection portion 3403 is greater than 0.2 mm, so as to achieve the desired electrical insulation between the two. Of course, the embodiments of the present disclosure are not limited thereto, and the second ground connection portion 3402 and the third ground connection portion 3403 may be electrically connected. The following is a more detailed description.

[0092] For example, as shown in FIG. 3A, the radiation main body 310 may be a metal grid, and due to the structure of the metal grid, the dual-polarization antenna can reduce the influence on the display device. The size and shape of the metal grid are designed to ensure that the light transmittance of the display device is equal to or higher than a predetermined threshold value, for example, higher than 87%. The grid lines of the metal grid of the radiation main body 310 are respectively parallel to the contour line or form a predetermined angle with the contour line. In FIG. 3A, the radiation main body 310 has a square contour, and two parallel sides of the square are parallel to the first direction (forming an angle of 135 degrees with the x direction), and the other two parallel sides are parallel to the second direction (forming an angle of 45 degrees with the x direction). The grid lines of the radiation main body 310 include a plurality of grid lines parallel to the first direction and a plurality of grid lines parallel to the second direction. The four sides of the square contour of the radiation main body 1 are resonant sides, and current is transmitted between two resonant sides where the current opposes each other to generate resonance. As shown in FIG. 3A, when the grid lines are parallel to the contour line, compared with the case where the grid lines are not parallel to the contour line, the current is transmitted from one resonant side of the radiation main body 310 along the grid line through the shortest path to the other opposite resonant side, reducing the radiation generated in other directions that are non-main radiation directions, and the radiation efficiency is higher.

[0093] In some embodiments, the first feed line 320, the second feed line 330, and the first ground connection portions 3401 to the fourth ground connection portions 3404 may be metal grids, and the same or different grid structures as the radiation main body 310 may be adopted. In FIG. 3A, the grid lines of the metal grids of the first feed line 320, the second feed line 330, and the first ground connection portions 3401 to the fourth ground connection portions 3404 respectively form an angle of 45 degrees with the contour line. In some embodiments, the grid lines of the metal grids of the first feed line 320, the second feed line 330, and the first ground connection portions 3401 to the fourth ground connection portions 3404 are designed to be parallel to the contour line, so as to be consistent with the grid structure of the radiation main body 310 and improve the radiation performance of the antenna.

[0094] In FIG. 3A, grid lines are arranged at equal distances to form a square unit lattice. However, the configuration of the metal grid in the embodiments of the present disclosure is not limited to this, and the direction, distance, number of unit lattices, shape, and size of the grid lines may be arranged according to requirements, which will be described in detail below.

[0095] FIG. 3B shows an enlarged view of region A in FIG. 3A.

[0096] For example, in some embodiments, at least a part of the radiation body is electrically connected to at least one feed line. As shown in FIG. 3B, in FIG. 3A, the outer edge of the radiation body 310 in region A and the inner part close to the center of the radiation body 310 are cut, whereby a part of the radiation body 310 is electrically connected to the first feed line 320 and the second feed line 330. In FIG. 3B, due to the cutting method of the grid lines in region A, there is no parallax in the region where the radiation body 310 is located, and the overall visual effect is better.

[0097] For example, in some embodiments, as shown in FIG. 3A, the position where the third section 3301 is electrically connected to the radiation body 310 and the position where the first section 3201 is electrically connected to the radiation body 310 are symmetric with respect to the symmetry axis of the radiation body 310, which is advantageous for the antenna unit to achieve a better radiation effect.

[0098] FIG. 3C shows a partial configuration diagram of a dual-polarization antenna in an embodiment of the present disclosure. FIG. 3D shows a partial configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure.

[0099] As shown in FIG. 3C, a metal grid is installed over the entire surface. The metal grid includes, in addition to the portion forming the dual-polarization antenna (the portion with a dark black line color in the figure), the portion located in the redundant region DM (the portion with a light line color, close to gray in the figure). The metal grid in the redundant region does not contribute to the radiation of the antenna. For example, the arrangement direction and width of the plurality of lines L1 (black lines) of the radiation main body 310 of the dual-polarization antenna are the same as those of the plurality of lines L2 (gray lines) in the redundant region DM. The space between the line L1 and the line L2 is cut by a plurality of breaks K1, thereby blocking the electrical signal of the line L2 and insulating the redundant region DM from the dual-polarization antenna. For example, the region of the radiation main body 310 is partitioned by a plurality of breaks K1. For example, a plurality of diamond-shaped regions are formed between the plurality of lines L1 and the plurality of lines L2. For example, by configuring the metal grid of the remaining portion, the overall homogeneity of the optical characteristics of the display device can be improved.

[0100] For example, as shown in FIG. 3C, a plurality of breaks K2 are also provided in the line L2 of the redundant region. By forming the plurality of breaks K2, the signal connection between the lines L2 is blocked, preventing the line L2 from generating parasitic capacitance with other film layers or the like, and further reducing the influence of the line L2 in the redundant region. At the same time, the plurality of breaks K2 can further enhance the optical effect and improve the light transmittance.

[0101] As shown in FIG. 3D, when the plurality of breaks K1 and the plurality of breaks K2 in FIG. 3C are connected, disconnections KL1, KL2, KL3, and KL4 are obtained. For example, the disconnections KL1 and KL3 are located in the redundant region and are connected by the break K2. That is, the plurality of breaks K2 are distributed on different straight line sections. In FIG. 3C, for the sake of explanation, some of the breaks K1 and K2 are selected and connected. The disconnections KL1 and KL3 are both arranged close to each other in the vertical direction. However, the directions of the disconnections KL2 and KL4 and the disconnections KL1 and KL3 are different from each other. By arranging such scattered disconnections, the influence of the breaks on the display effect can be reduced, the optical visibility effect can be improved, and the light transmittance can be improved.

[0102] In addition, in FIG. 3C, the fracture K1 may be connected as a plurality of broken lines that are not parallel to any of the broken lines KL1, KL2, KL3, and KL4, but the description thereof is omitted here.

[0103] FIG. 4 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. The dual-polarization antenna 30B in FIG. 4 is similar to the dual-polarization antenna 30A in FIG. 3A, and the differences are mainly in the configuration of at least the radiation element 310, the first feed line, and the second feed line. For the sake of simplicity, the differences will be mainly described in detail below.

[0104] As shown in FIG. 4, the first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 similarly have a rectangular contour and are arranged along the x direction (reference direction). The radiation element 310 similarly has a square contour, and the symmetry axis L of the radiation element 310 forms a predetermined first angle with respect to the reference direction. The first predetermined angle may be 45 degrees. In some embodiments, considering the process deviation, the first predetermined angle is in the range of 45 degrees ± δ, where δ is a predetermined deviation value. The first feed line similarly includes a first section 3201 and a second section 3202, and the second feed line similarly includes a third section 3301 and a second section 3302. The first section 3201 and the third section 3301 (for example, at least one of the first section 3201 and the third section 3301) are perpendicular to the symmetry axis L of the radiation element 310, that is, form an angle of 135 degrees with respect to the reference direction. The second section 3202 and the fourth section 3302 (for example, at least one of the second section 3202 and the fourth section 3302) are perpendicular to the reference direction. Thereby, a dual-polarization antenna with polarization directions of 0 degrees and 90 degrees is realized.

[0105] FIG. 5 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. The dual-polarization antenna 30C in FIG. 5 is similar to the dual-polarization antenna 30B in FIG. 4, and the difference lies in at least the configuration of the first feed line and the second feed line. For the sake of simplicity, the following mainly describes the differences in detail.

[0106] As shown in FIG. 5, the first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 similarly have a rectangular contour and are arranged along the x direction (reference direction). The radiation body 310 has a square contour and a symmetry axis L forming a first predetermined angle with respect to the reference direction, and the first predetermined angle may be in the range of 45 degrees ± δ. The first feed line similarly includes a first section 3201 and a second section 3202, and the second feed line similarly includes a third section 3301 and a second section 3302. The difference from FIG. 4 is that in FIG. 5, the first section 3201 of the first feed line is parallel to the reference direction, the second section 3202 of the first feed line is perpendicular to the reference direction, and the third section 3301 and the fourth section 3302 of the second feed line are perpendicular to the reference direction. Thereby, a configuration of another example of a dual-polarization antenna with polarization directions of 0 degrees and 90 degrees is realized. FIG. 6 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. The dual-polarization antenna 30D in FIG. 6 is similar to the dual-polarization antenna 30B in FIG. 4, and the difference lies in at least the configuration of the first feed line, the second feed line, and a plurality of ground connection portions. For the sake of simplicity, the following mainly describes the differences in detail.

[0107] As shown in FIG. 6, the first ground connection portion 3401, the second ground connection portion 3402, the third ground connection portion 3403, and the fourth ground connection portion 3404 similarly have a rectangular contour. As a difference from FIG. 4, the third ground connection portion 3403 and the fourth ground connection portion 3404 in FIG. 6 are arranged along the x-direction (reference direction), and the first ground connection portion 3401 and the second ground connection portion 3402 are arranged along the y-direction (a direction perpendicular to the reference direction). The symmetry axis L of the radiation body 310 forms a first predetermined angle with respect to the reference direction, and the first predetermined angle may be in the range of 45 degrees ± δ. The first section 3201 and the third section 3301 are perpendicular to the symmetry axis L of the radiation body 310. The second section 3202 is parallel to the reference direction, and the fourth section 3302 is perpendicular to the reference direction. Thereby, a configuration of another example of the dual-polarized antenna with polarization directions of 0 degrees and 90 degrees is realized. The dual-polarized antenna has an axisymmetric pattern with respect to the symmetry axis L and has better radiation performance.

[0108] In the above embodiment, four ground connection portions with a rectangular contour are described as an example, but the embodiments of the present disclosure are not limited thereto. Hereinafter, descriptions will be made with reference to FIGS. 7 to 9.

[0109] FIG. 7 shows a configuration diagram of a dual-polarized antenna in another embodiment of the present disclosure. The dual-polarized antenna 30E in FIG. 7 is similar to the dual-polarized antenna 30A in FIG. 3A. As a difference, at least the second ground connection portion and the third ground connection portion are electrically connected to each other. As shown in FIG. 7, the second ground connection portion 3402 and the third ground connection portion 3403 are electrically connected to each other. For example, the whole of one rectangular conductor is formed. Thereby, the dual-polarized antenna has a simpler ground connection structure and is easier to manufacture.

[0110] FIG. 8 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. The dual-polarization antenna 30F in FIG. 8 is similar to the dual-polarization antenna 30A in FIG. 3A. The difference is that protrusions are provided on at least both the second ground connection portion and the third ground connection portion. As shown in FIG. 8, the second ground connection portion includes a second main body 3402A and a first protrusion 3402B that is triangular. The first protrusion 3402B is provided on the side facing the radiation main body 310 of the second main body 3402A. The two opposing sides between the first protrusion 3402B and the radiation main body 310 (the right side of the first protrusion 3402B and the lower left side of the radiation main body 310 in FIG. 8) are parallel to each other. The third ground connection portion includes a rectangular main body 3403A and a second protrusion 3403B that is triangular. The second protrusion 3403B is provided on the side facing the radiation main body 310 of the rectangular main body 3403A. The two opposing sides between the second protrusion 3403B and the radiation main body 310 (the left side of the second protrusion 3403B and the lower right side of the radiation main body 310 in FIG. 8) are parallel to each other. The distance D6 between the first protrusion 3402B and the radiation main body 310 may be equal to the distance D7 between the second protrusion 3403B and the radiation main body 310. Thus, the second ground connection portion and the third ground connection portion are symmetric with respect to the symmetry axis of the radiation main body 310.

[0111] For example, by providing a protrusion on the ground connection portion and changing the resonance configuration of the dual-polarization antenna, the S-parameters of the dual-polarization antenna can be improved. Although both the first protrusion and the second protrusion in the above embodiment are single triangles, the embodiments of the present disclosure are not limited thereto. The shapes, numbers, and sizes of the first protrusion and the second protrusion may be designed according to requirements, as long as at least one side is adjacent to and parallel to the resonance side of the radiation main body 310.

[0112] FIG. 9 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. The dual-polarization antenna 30F in FIG. 9 is similar to the dual-polarization antenna 30B in FIG. 4. The difference is that at least one of the first ground connection portion and the second ground connection portion is provided with an extended stripe portion. As shown in FIG. 9, the first ground connection portion includes a first main body 3401A and a first stripe portion 3401C. The first stripe portion 3401C is provided on the side facing the second section 3202 of the first feed line of the first main body 3401A and extends parallel to the second section 3202 of the first feed line. The second ground connection portion includes a second main body 3402A and a second stripe portion 3402C. The second stripe portion 3402C is provided on the side facing the second section 3202 of the first feed line of the second main body 3402A and extends parallel to the second section 3202 of the first feed line. In FIG. 9, the length of the first feed line is greater than the length of the second feed line. By providing extended stripe portions at the ground connection portions on both sides of the long first feed line, the radiation by the long first feed line is suppressed, and the overall radiation performance of the antenna is optimized.

[0113] For example, in some embodiments, as shown in FIG. 9, the distance between the first stripe portion 3401C and the first feed line is equal to the distance between the first main body portion 3401A and the first feed line. The distance between the second stripe portion 3402C and The first feed line is equal to the distance between the second main body portion 3402A and The first feed line .

[0114] As described above, with reference to FIGS. 7 to 9, various exemplary structures of the ground connection portion are described by taking the structure of a specific dual-polarization antenna as an example. These exemplary structures of the ground connection portion are also applicable to other dual-polarization antennas. For example, the structure of the ground connection portion in FIGS. 7 and 8 may be applied to the dual-polarization antenna described with reference to FIGS. 4 to 6 as described above. The structure of the ground connection portion in FIG. 9 is also applicable to a dual-polarization antenna with feed lines having different lengths, for example, the dual-polarization antenna 30C described with reference to FIG. 5 as described above.

[0115] In the above embodiments, the grid lines of the metal grid of the radiation body 310 of each dual-polarization antenna are parallel to the contour lines respectively, but the embodiments of the present disclosure are not limited thereto. The grid lines of the metal grid of the radiation body 310 may form a second predetermined angle with respect to the contour line. The second predetermined angle may be set to any value according to requirements in order to meet various design requirements. For example, it may be set to any value between 0 degrees and 180 degrees.

[0116] For example, FIG. 10 shows a configuration diagram of a dual-polarization antenna in another embodiment of the present disclosure. As shown in FIG. 10, the grid lines of the metal grid of the radiation body 310 form an angle of 45 degrees with respect to the contour line. In FIG. 10, the grid lines of the first feed line 320, the second feed line 330, and the metal grid of the first ground connection portion 3401 to the fourth ground connection portion 3404 form an angle of 45 degrees with respect to the contour line.

[0117] In the above embodiments, the metal grid has a square unit cell, but the embodiments of the present disclosure are not limited thereto. The shape, size, and number of the unit cells may be arranged according to requirements. For example, the shape of the unit cell of the metal grid includes, but is not limited to, a square, a triangle, a rhombus, a hexagon (e.g., a regular hexagon), an octagon (e.g., a regular octagon), and other shapes, irregular shapes. For example, in some embodiments, the unit cell of the metal grid may be a dodecagon. For example, the dodecagonal unit cell may be formed in a "cross" shape.

[0118] For example, in some embodiments, at least a part of the radiation body is electrically connected to at least one feed line. For example, the radiation body may cut the grid lines of the metal grid, for example, to divide it into a plurality of parts. Here, different parts of the radiation body may or may not be electrically connected to the feed line.

[0119] For example, a part of the radiation body may be arranged to be electrically connected to the feed line. In some embodiments, a part of the radiation body is electrically connected to at least one feed line, and a part of the radiation body that is not electrically connected to at least one feed line of the radiation body is signal-coupled to a part of the radiation body that is electrically connected to at least one feed line of the radiation body. For example, the plurality of divided parts of the radiation body have various shapes such as a square, a triangle, a rhombus, a hexagon (e.g., a regular hexagon), an octagon (e.g., a regular octagon), and other shapes, irregular shapes, etc.

[0120] In the embodiments of the present disclosure, the number of the dual-polarization antennas of the display device may be plural, and the plural dual-polarization antennas may be distributed in the edge region of the display device, which will be described below with reference to FIGS. 11, 12, and 13.

[0121] FIG. 11 shows a plan view of a display device in an embodiment of the present disclosure. As shown in FIG. 11, a plurality of dual-polarization antennas 30 are provided in the display device 100, and for the sake of simplicity in FIG. 11, one dual-polarization antenna is shown by a dotted frame.

[0122] For example, in some embodiments, the four edges of the display device include a first edge, a second edge opposite to the first edge, a third edge, and a fourth edge opposite to the third edge. The antenna unit includes at least one of a first antenna array, a second antenna array, a third antenna array, and a fourth antenna array. The first antenna array is provided on the first edge. The second antenna array is provided on the second edge. The third antenna array is provided on the third edge. The fourth antenna array is provided on the fourth edge.

[0123] For example, as shown in FIG. 11, a plurality of dual-polarization antennas are arranged in at least one antenna array in the display device 100. For example, the first dual-polarization antenna array 101 (e.g., the first antenna array) shown in FIG. 11, the second dual-polarization antenna array 102 (e.g., the second antenna array), the third dual-polarization antenna array 103 (e.g., the third antenna array), and the fourth dual-polarization antenna array 104 (the fourth antenna array) are arranged. The first dual-polarization antenna array 101, the second dual-polarization antenna array 102, the third dual-polarization antenna array 103, and the fourth dual-polarization antenna array 104 may be 5G millimeter-wave multi-input multi-output (MIMO) antenna arrays. The first dual-polarization antenna array 101 is provided at the first edge (the left edge in FIG. 11) of the display device 100. The second dual-polarization antenna array 102 is provided at the second edge (the right edge in FIG. 11) facing the first edge of the display device 100. The third dual-polarization antenna array 103 is provided at the third edge (the upper edge in FIG. 11) of the display device 100. The fourth dual-polarization antenna array 104 is provided at the fourth edge (the lower edge in FIG. 11) facing the third edge of the display device 100. Each of the first dual-polarization antenna array 101, the second dual-polarization antenna array 102, the third dual-polarization antenna array 103, and the fourth dual-polarization antenna array 104 may include a plurality of dual-polarization antennas that are 1×N arrays, provided that N is an integer of 4 or more.

[0124] For example, in some embodiments, a plurality of antenna units are provided at one of the four edges of the display device. For example, an antenna array is provided at the fourth edge (the lower edge in FIG. 11) of the display device, and no antenna array is provided at the other edges.

[0125] For example, in FIG. 11, each of the first dual-polarization antenna array 101, the second dual-polarization antenna array 102, the third dual-polarization antenna array 103, and the fourth dual-polarization antenna array 104 includes four dual-polarization antennas 30 arranged along the edge where the array is located. The ends of the two feed lines of each dual-polarization antenna 30 (i.e., one end located between the two ground connection parts) are provided to face the edge of the display device 100, and thus are drawn out from the edge of the display device 100. However, the embodiments of the present disclosure are not limited thereto, and the number, position of the dual-polarization antenna arrays, the number and arrangement method of the dual-polarization antennas in the array may be arranged according to requirements. For example, the number of dual-polarization antenna arrays may be one, two, or five, each dual-polarization antenna array may include eight, sixteen, or other numbers of dual-polarization antennas, and the dual-polarization antennas in each dual-polarization array may be arranged in a two-dimensional array or other arrays.

[0126] In FIG. 11, each dual-polarization antenna 30 is realized by the dual-polarization antenna described with reference to FIG. 3A as described above, but the embodiments of the present disclosure are not limited thereto. The antenna structure in FIG. 11 is applicable to the structure of the dual-polarization antenna of any of the above embodiments. In some embodiments, the same dual-polarization antenna array may adopt the same dual-polarization antenna structure, and different dual-polarization antenna arrays may adopt different dual-polarization antenna structures.

[0127] Generally, the space used by the antenna in the display device is limited, especially in the case of the 5G millimeter wave MIMO technology. The structure of the dual-polarization antenna in the embodiments of the present disclosure is simple and small in size, and is applicable to the design of the antenna array. A plurality of dual-polarization antennas are arranged in the antenna array to realize a higher communication capacity with a small antenna size in the limited space of the display device. Moreover, the structure of the dual-polarization antenna may be used as a single-polarization antenna or a dual-polarization antenna.

[0128] FIG. 12 shows a plan view of a display device in another embodiment of the present disclosure.

[0129] Similar to FIG. 11, the display device 200 in FIG. 12 is provided with a first dual-polarization antenna array 201, a second dual-polarization antenna array 202, a third dual-polarization antenna array 203, and a fourth dual-polarization antenna array 204, and each array includes four dual-polarization antennas 30. Different from FIG. 11, the display device 200 in FIG. 12 adopts the structure of the dual-polarization antenna described with reference to FIG. 4 as described above. In FIG. 12, since the dual-polarization antenna 30 has an asymmetric structure, each dual-polarization antenna 30 may be symmetrically arranged with respect to the display device, and thereby, the plurality of dual-polarization antennas 30 as a whole are arranged in a symmetric pattern.

[0130] For example, each of the first dual-polarization antenna array 201, the second dual-polarization antenna array 202, the third dual-polarization antenna array 203, and the fourth dual-polarization antenna array 204 may be arranged in a symmetric pattern. Taking the first dual-polarization antenna array 201 as an example, the long first feed lines of two of the four dual-polarization antennas 30 are provided so as to face the upper edge of the display device 200, and the long first feed lines of the other two dual-polarization antennas 30 are provided so as to face the lower edge of the display device 200, whereby the four dual-polarization antennas 30 in the first dual-polarization antenna array 201 are arranged in an axially symmetric pattern, and the axis of symmetry is as shown by the dotted line. The dual-polarization antennas 30 in the second dual-polarization antenna array 202, the third dual-polarization antenna array 203, and the fourth dual-polarization antenna array 204 may be arranged in a similar manner.

[0131] For example, the first dual-polarization antenna array 201, the second dual-polarization antenna array 202, the third dual-polarization antenna array 203, and the fourth dual-polarization antenna array 204 may be arranged symmetrically with respect to each other. As shown in FIG. 11, the first dual-polarization antenna array 201 and the second dual-polarization antenna array 202 are symmetric with respect to the first central axis (e.g., the vertical center line) of the display device 200, and the third dual-polarization antenna array 203 and the fourth dual-polarization antenna array 204 are symmetric with respect to the second central axis (e.g., the horizontal center line) perpendicular to the first central axis of the display device 200.

[0132] In FIG. 12, each dual-polarization antenna 30 is realized by the dual-polarization antenna described with reference to FIG. 4 as described above, but the embodiments of the present disclosure are not limited thereto. The antenna structure in FIG. 12 is applicable to a dual-polarization antenna having an asymmetric pattern in any of the above embodiments, for example, the dual-polarization antenna described with reference to FIGS. 5 and 9 as described above.

[0133] The embodiments of the present disclosure can improve the overall radiation performance of the antenna array by arranging the asymmetric dual-polarization antennas symmetrically.

[0134] FIG. 13 shows a plan view of a display device according to another embodiment of the present disclosure.

[0135] As shown in FIG. 13, the display device 300 includes four dual-polarization antennas 301, 302, 303, and 304, which are respectively located in the upper-left corner region, upper-right corner region, lower-left corner region, and lower-right corner region of the display device. The dual-polarization antennas 301, 302, 303, and 304 adopt the structure of the dual-polarization antenna described with reference to FIG. 6 as described above. The two feed lines of each dual-polarization antenna are respectively located on two adjacent sides of the display device 300. For example, the first feed line of the dual-polarization antenna 301 and the ground connection portions on both sides thereof are located on the third side (upper side) of the display device 300, and the second feed line of the dual-polarization antenna 301 and the ground connection portions on both sides thereof are located on the first side (left side) of the display device 300. The first feed line of the dual-polarization antenna 302 and the ground connection portions on both sides thereof are located on the second side (right side) of the display device 300, and the second feed line of the dual-polarization antenna 302 and the ground connection portions on both sides thereof are located on the third side (upper side) of the display device 300. By analogy, the repeated description is omitted here.

[0136] In the embodiments of the present disclosure, four dual-polarization antennas are provided in the four corner regions of the display device. Compared with the form arranged in the antenna array, the space occupied by the antenna in the display device is further reduced. In FIG. 6, since the two feed lines of the dual-polarization antenna extend along directions perpendicular to each other, it is more appropriate to be arranged in the corner region of the display device, and in this way, it is easier to draw out from the edge of the display device.

[0137] FIG. 14 shows a perspective view of a display device according to an embodiment of the present disclosure. To clearly show the connection between the dual-polarization antenna and the signal transmission line, the structure of other layers of the display device is omitted in FIG. 14. As shown in FIG. 14, the display device further includes a flexible circuit board 60, for example, a flexible printed circuit board (FPC). The first feed line 320 and the second feed line 330 of the dual-polarization antenna are respectively connected to a plurality of signal transmission lines 70 of the display device via the flexible circuit board 60. The plurality of signal transmission lines 70 are located on the back surface of the display device. Referring to FIG. 1, they are located on the light incident side of the display panel 20, that is, on the side away from the protective layer 10 of the conductive material layer 210. The plurality of signal transmission lines 70 are connected to a control circuit, for example, the mother board of the display device, and provide signals from the control circuit to the feed lines of the dual-polarization antenna via the flexible circuit board 60. FIG. 14 shows only the dual-polarization antenna array located at one side edge of the display device. The first feed line and the second feed line of each of the four dual-polarization antennas in the array are one-to-one corresponding connected to the plurality of signal transmission lines 70 via conductive wires on one flexible circuit board 60. However, the number and position of the flexible circuit board 60 are not limited thereto. The feed lines of the dual-polarization antennas on the other side of the display device can also be connected to the corresponding signal transmission lines via other flexible circuit boards 60. For example, for the antenna structure shown in FIG. 11, four flexible circuit boards are respectively provided on the upper side, lower side, left side and right side of the display device 100 to draw out the feed lines of the four dual-polarization antenna arrays respectively. A scale is shown below FIG. 14, but this is merely illustrative and does not strictly limit the sizes of the components in the figure.

[0138] FIG. 15 is a graph of the S-parameters of the dual-polarization antenna of the display device in an embodiment of the present disclosure. As shown in FIG. 15, the S(1,1) parametric curve and the S(2,2) parametric curve of the dual-polarization antenna indicate that the -10 dB operating bandwidth of the dual-polarization antenna is greater than at least 2.5G, and the S(1,1) parametric curve indicates that the port isolation of the dual-polarization antenna is basically -15 dB or less in the range of 24 to 29 GHz. Thus, the dual-polarization antenna in the embodiment of the present disclosure has a desired port isolation in the 5G millimeter-wave frequency band.

[0139] FIG. 16 is a diagram showing the radiation direction of the dual-polarization antenna array of the display device in an embodiment of the present disclosure. Taking the 1×4 dual-polarization antenna array as an example, the two curves in FIG. 16 respectively show the gains in each direction of the two ports of the dual-polarization antenna array. At a frequency of 28 GHz, the difference in the gains in the 0-degree direction of the two ports is greater than 15 dB, that is, the polarization isolation is greater than 15 dB. The dual-polarization antenna array in the embodiment of the present disclosure has a desired polarization isolation in the 5G millimeter-wave frequency band.

[0140] The display device in the embodiment of the present disclosure can be implemented as various types of devices such as, for example, a display, a mobile phone, a television, a tablet, a notebook computer, a desktop computer, and other devices with a display function.

[0141] At least one embodiment of the present disclosure further provides a display device, which includes a display panel, an antenna layer, and a reflection layer. The antenna layer includes at least one antenna unit, the antenna layer is provided on the display side of the display panel, the reflection layer is provided on the non-display side of the display panel, the display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, and the reflection layer is the metal reflector. Or, the display panel includes an organic light-emitting diode display panel, and the reflection layer is the metal heat dissipation layer of the organic light-emitting diode display panel.

[0142] The display device provided in the above embodiments of the present disclosure can enhance the radiation directivity of the antenna by using the metal reflector of the backlight module of the liquid crystal panel or the metal heat dissipation layer of the display panel of the organic light-emitting diode as the reflection layer, endow the antenna with broadband characteristics, reduce the space occupied by the antenna, and enhance the integration degree of the functions of the display panel without affecting the thickness of the display panel.

[0143] A certain embodiment of the present disclosure further provides an electronic device and a method for manufacturing the display panel of the above display device.

[0144] Hereinafter, embodiments of the present disclosure and examples thereof will be described in detail with reference to the drawings.

[0145] FIG. 17 is a schematic configuration diagram of a display device in an embodiment of the present disclosure, FIG. 18 is a schematic diagram of a display panel in an embodiment of the present disclosure, and FIG. 19A is a schematic diagram of an antenna unit in an embodiment of the present disclosure. Hereinafter, a display device in at least one embodiment of the present disclosure will be described in detail with reference to FIGS. 17, 18, and 19A.

[0146] As shown in FIGS. 17 and 18, the display device includes a display panel 1000, an antenna layer 1200, and a reflection layer 1300. The display panel 1000 includes a display area 1101 and a non-display area 1102, and the non-display area 1102 at least partially surrounds the display area 1101. For example, the display panel 1000 includes a display substrate 1100.

[0147] For example, the display panel 1000 may be a liquid crystal panel, an organic light-emitting diode display panel (for example, a rigid or flexible organic light-emitting diode display panel), a quantum dot light-emitting diode display panel, an electronic paper display panel, etc. In the following embodiments, the liquid crystal panel and the organic light-emitting diode display panel are taken as examples to explain the above display panel without limitation.

[0148] For example, the display panel 1000 may include a substrate, and the substrate may be a flexible substrate or a non-flexible substrate. For example, the material of the substrate may include an organic material, and the organic material may include, for example, resin materials such as polyimide (Pi), polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate, but the embodiments of the present disclosure are not limited thereto.

[0149] For example, as shown in FIGS. 17 and 18, the antenna layer 1200 is provided on the first side (i.e., the "display side") for display of the display panel 1000 and is provided along the edge 1103 of the display panel 1000. The display panel 1000 includes four edges 1103 (two are located in the X direction and the other two are located in the Y direction). When there are a plurality of antenna layers 1200, they may be provided on the same edge 1103 or different edges 1103 of the display panel 1000. The extending direction (the Y direction or the X direction in the figure) of the antenna layer 1200 is parallel to the edge 1103 of the display panel 1000 where it is located. A part of the antenna layer 1200 is provided in the non-display area 1102 of the display panel 1000, and the part of the antenna layer 1200 provided in the non-display area 1102 of the display panel 1000 is where signal lines are arranged and connected to other devices, which is advantageous for the narrow bezel design of the display panel 1000. The reflective layer 1300 is provided on the second side (i.e., the "non-display side") facing the first side of the display panel 1000 and is provided opposite to the antenna layer 1200 in the direction perpendicular to the display panel 1000 (the Z direction in FIG. 17, i.e., the thickness direction of the display panel 1000). For example, the reflective layer 1300 may be a metal reflector made of a metal material and serves to increase the radiation intensity of the antenna.

[0150] For example, the material of the reflective layer 1300 may include an opaque metal material, such as copper, gold, aluminum, and any alloy of these metal materials.

[0151] For example, the thickness of the reflective layer 1300 in the direction perpendicular to the display substrate 1100 is 8 microns or more, thereby ensuring the directional characteristics and intensity of the antenna radiation of the antenna layer 1200.

[0152] For example, the antenna layer includes at least one antenna unit. As shown in FIG. 18, the antenna layer 1200 includes a plurality of antenna units 1210, and the plurality of antenna units 1210 are provided in parallel along the edge 1103 of the display panel 1000. One edge 1103 of the display panel 1000 may include four antenna units 1210 (shown in FIG. 18) in the antenna layer 1200, and the antenna units 1210 are provided in parallel without an interval, thereby reducing the occupied space. The greater the number of antenna units 1210, the greater the radiation intensity of the antenna.

[0153] For example, at least a part of at least one antenna unit 1210 is provided in the non-display area of the display panel 1000, thereby reducing the space occupied by the antenna unit in the display area of the display panel and reducing the influence of the antenna unit on the light transmittance of the display panel.

[0154] For example, in some embodiments, the number of antenna units 1210 of the antenna layer 1200 on one edge 1103 of the display panel 1000 may be one, two, three, five, etc., and may be arranged according to the implementation requirements and specific configuration of the terminal device. The embodiments of the present disclosure are not limited thereto. For example, when the antenna layer 1200 includes a plurality of antenna units 1210 on one edge 1103 of the display panel 1000, if the arrangement space permits, an interval between the antenna units 1210 may be provided, and the embodiments of the present disclosure are not limited thereto.

[0155] In the display device of this embodiment, by providing the reflection layer 1300 used for the antenna unit 1210, the radiation directivity of the antenna layer 1200 can be enhanced, the antenna radiation has broadband characteristics, covers a wide frequency band, and the space occupied by the antenna can be reduced. For example, the electromagnetic wave radiated from the antenna can cover the operating bands of n257 (26.5 GHz to 29.5 GHz) and n258 (24.25 GHz to 27.5 GHz) defined by the 3GPP standard (referring to the third-generation mobile communication standard established based on the GSMMAP core network and using WCDMA (registered trademark) as the radio interface). For example, in one example, at least one antenna unit includes a pattern part, and the pattern part includes a feeder part, an antenna radiation part, and a reference signal pattern part. The feeder part is electrically connected to the antenna radiation part to provide a signal current to the antenna radiation part, the reference signal pattern part is provided at an interval from the feeder part and the antenna radiation part, and is located on both sides of the feeder part away from the antenna radiation part. For example, at least one feed line of the antenna unit is the feeder part. For example, the radiation main body is the antenna radiation part. For example, each of the plurality of ground connection parts is the reference signal pattern part.

[0156] For example, in some examples, at least one antenna unit further includes a bonding part, the bonding part is electrically connected to the pattern part, and the bonding part is provided in the non-display area of the display panel.

[0157] As shown in FIGS. 18 and 19A, the antenna unit 1210 includes a pattern portion 1220 and a bonding portion 1230. The pattern portion 1220 is electrically connected to the bonding portion 1230, and the bonding portion 1230 is located in the non-display area 1102 of the display panel 1000. The pattern portion 1220 and the bonding portion 1230 are located in the same film layer and are provided on the first side of the display panel 1000, which helps to reduce the occupied space and further reduce the thickness of the display panel. The pattern portion 1200 is located in the display area 1101 of the display panel 1000 to transmit and receive electromagnetic waves. The bonding portion 1230 is connected to the pattern portion 1220, is located in the non-display area 1102 of the display panel 1000, and provides an electrical signal to the pattern portion 1220.

[0158] For example, in some examples, the pattern portion 1220 is provided in the display area 1101 of the display panel 1000. The pattern portion 1220 is provided opposite to the reflective layer 1230 to ensure the radiation intensity of the antenna.

[0159] For example, in some examples, the bonding portion 1230 may be provided in the non-display area 1102 of the display panel 1000. The bonding portion 1230 is provided in the non-display area 1102 to ensure that the bonding portion 1230 does not affect the display function of the display panel 1000.

[0160] For example, in some embodiments, depending on the design space around the display panel 1000, at least a part of the pattern portion 1220 close to the bonding portion 1230 may be provided in the non-display area 1102 of the display substrate. The embodiments of the present disclosure are not limited thereto.

[0161] For example, in some embodiments, as shown in FIG. 19A, the pattern portion 1220 is formed of a plurality of antenna patterns 1240 (i.e., metal grids) uniformly arranged in an array, and the antenna pattern 1240 includes a plurality of metal wires 1241. The plurality of metal wires 1241 of the antenna pattern 1240 are formed in a rhombic conductive grid. The antenna pattern 1240 transmits and receives electromagnetic waves with the conductive grid. With the above configuration of the antenna pattern, the loss of the input electrical signal can be reduced.

[0162] For example, in other embodiments, the plurality of metal wires 1241 may be formed in a conductive grid of other shapes such as a rectangle or a polygon.

[0163] FIG. 19B is an enlarged view of the M portion in FIG. 19A.

[0164] For example, in some embodiments, the line width of the metal wire 1241 may be 5 microns or less. For example, as shown in FIGS. 19A and 19B, the line width L1 of the metal wire 1241 is the width of the cross-section in the direction perpendicular to the metal wire 1241. For example, the distance DD1 between the metal wires 1241 in the antenna pattern 1240 (for example, the relative perpendicular distance between two adjacent metal wires 1241) is 200 microns or more. With the above size design, the light transmittance of the display panel can be ensured.

[0165] For example, in some embodiments, the material of the metal wire 1241 includes low-resistance and low-loss metals such as copper, gold, and silver.

[0166] For example, in some embodiments, as shown in FIG. 19A, the plurality of antenna patterns 1240 includes a feeder section 1201, an antenna radiation section 1202, and a reference signal pattern section 1203. The feeder section 1201 is configured in a longitudinal shape, the antenna radiation section 1202 is rectangular, and the short side of the length of the feeder section 1201 is electrically connected to the antenna radiation section 1202 to provide a signal current to the antenna radiation section 1202. For example, the bonding section 1230 includes a signal bonding section 1231 and a ground bonding section 1232. The signal bonding section 1231 is connected to the feeder section 1201, and the feeder section 1201 receives the electrical signal transmitted by the signal bonding section 1231 and provides a signal current to the antenna radiation section 1202 by electrical coupling or magnetic coupling. The reference signal pattern section 1203 is provided at a distance from the feeder section 1201 and the antenna radiation section 1202 and is located on both sides of the feeder section 1201 away from the antenna radiation section 1202. The reference signal pattern section 1203 is connected to the ground bonding section 1232 and receives the electrical signal from the ground bonding section 1232. The reference signal pattern section 1203 provides one reference signal to the antenna radiation section 1202 as a ground connection plate of the antenna layer 1200, and the distribution of the signal current of the reference signal pattern section 1203 affects the directional characteristics of the antenna radiation of the antenna radiation section 1202.

[0167] For example, in some embodiments, the distance DD2 between the reference signal pattern portion 1203 and the antenna radiation portion 1202 (the perpendicular distance between the reference signal pattern portion 1203 and the antenna radiation portion 1202, i.e., the width of the gap between the reference signal pattern portion 1203 and the antenna radiation portion 1202) may be 200 microns to 300 microns, and the distance DD3 between the reference signal pattern portion 1203 and the feeder portion 1201 (the perpendicular distance between the reference signal pattern portion 1203 and the feeder portion 1201, i.e., the width of the gap between the reference signal pattern portion 1203 and the feeder portion 1201) may be 250 microns to 400 microns. For example, in FIG. 19A, the distance D2 between the reference signal pattern portion 1203 and the antenna radiation portion 1202 is about 250 microns, and the distance D3 between the reference signal pattern portion 1203 and the feeder portion 1201 is about 330 microns. Here, "about" means that the value can be changed within the range of ±5%. In the above size range, the distances between the reference signal pattern portion 1203 and the antenna radiation portion 1202 and the feeder portion 1201 can ensure the directional characteristics of antenna radiation.

[0168] For example, in other embodiments, the signal bonding portion 1231 and the feeder portion 1201 may be connected, and the antenna radiation portion 1202, the reference signal pattern portion 1203, and the ground bonding portion 1232 may be provided in different film layers of the display panel 1000, but the embodiments of the present disclosure are not limited thereto.

[0169] For example, in some embodiments, the shape of the antenna radiation portion 1202 may be any one of a trapezoid, a polygon, a circle, and an ellipse. FIGS. 20A to 20E show examples of the pattern portion 1220 when the antenna radiation portion 1202 has different shapes.

[0170] For example, as shown in FIG. 20A, the antenna radiation portion 1202a of the pattern portion 1220a is trapezoidal, and the short side of the antenna radiation portion 1202a is electrically connected to face the feeder portion 1201a.

[0171] For example, as shown in FIG. 20B, the antenna radiation portion 1202b of the pattern portion 1220b is elliptical, and the side facing the major axis of the ellipse of the antenna radiation portion 1202b is electrically connected to the feeder portion 1201b.

[0172] For example, as shown in FIG. 20C, the antenna radiation portion 1202c of the pattern portion 1220c is a figure combined by a rectangle and four arcs, and the long side of the antenna radiation portion 1202c is electrically connected facing the feeder portion 1201c. For example, the figure of the antenna radiation portion 1202c may be combined with a rectangle and the number of arcs such as one section, two sections, three sections, etc.

[0173] For example, as shown in FIG. 20D, the antenna radiation portion 1202d of the pattern portion 1220d is hexagonal, and the hexagon is formed by dividing a rectangle with two line segments, and the antenna radiation portion 1202d is electrically connected to the feeder portion 1201d. For example, the figure of the antenna radiation portion 1201d may be heptagonal, octagonal, etc.

[0174] For example, as shown in FIG. 20E, the antenna radiation portion 1202e of the pattern portion 1220e is regular hexagonal, and the antenna radiation portion 1202e is electrically connected to the feeder portion 1201e.

[0175] Note that the shapes of the antenna radiation portions shown in the above embodiments are merely some examples of the embodiments of the present disclosure, and other modified examples of the shapes of the antenna radiation portions are also included in the scope of the embodiments of the present disclosure.

[0176] FIG. 20F is a schematic diagram of the pattern portion of another antenna unit in an embodiment of the present disclosure.

[0177] For example, in some embodiments, as shown in FIG. 20F, a plurality of metal wires 1241f of the antenna pattern 1240f are formed on a rectangular conductive grid. The antenna radiation portion 1202f of the pattern portion 1220f is rectangular, and of course, it may be other shapes shown in the above embodiments, and the embodiments of the present disclosure are not limited thereto.

[0178] For example, in some embodiments, as shown in FIG. 17, the display device further includes a cover plate 1500, which is provided on the first side of the display panel 1000, thereby protecting the display panel 1000 and other components. The antenna layer 1200 is provided on the side of the cover plate 1500 facing the display panel 1000. That is, the cover plate 1500 is provided above the antenna layer 1200 along the Z direction, that is, the antenna layer 1200 is provided on the side of the cover plate 1500 facing the display panel 1000. Thereby, the antenna layer 1200 can be protected and dust can be prevented.

[0179] For example, the cover plate 1500 may be a transparent glass cover plate or a plastic cover plate, thereby ensuring the light transmittance of the display panel 1000. The cover plate 1500 may be made of a transparent material such as glass, silicon wafer, quartz, and plastic.

[0180] For example, the thickness range of the cover plate 1500 is 200 microns to 600 microns.

[0181] For example, in some embodiments, as shown in FIGS. 17 and 19A, the display device further includes a feed line 1400. The feed line 1400 is electrically connected to the bonding portion 1230 and is configured to provide an electrical signal to the antenna unit 1210 and receive an electrical signal from the antenna unit 1210, that is, to provide a signal connection to the antenna unit 1210. For example, the feed line 1400 is electrically connected to the signal bonding portion 1231 of the bonding portion 1230 to provide an electrical signal to the signal bonding portion 1231, and the signal bonding portion 1231 provides a signal current to the feeder portion 1201. The feed line 1400 is electrically connected to the ground bonding portion 1232 of the bonding portion 1230 to further provide an electrical signal to the ground bonding portion 1232, and the ground bonding portion 1232 provides a signal current to the reference signal pattern portion 1203. The distribution of the signal current in the reference signal pattern portion 1203 affects the directional characteristics of the antenna radiation portion.

[0182] For example, in some embodiments, the feed line 1400 may be an LCP (Liquid Crystal Polymer) flexible transmission line, an MPI (Modified PI, modified polyimide) flexible transmission line, etc., and realizes signal transmission between the antenna layer 1200 and other modules of the terminal device. The embodiments of the present disclosure are not limited thereto.

[0183] For example, in some embodiments, the bonding portion 1230 between the feed line 1400 and the antenna layer 1200 is bonded with a conductive adhesive and connected by a method such as anisotropic conductive film (ACF) bonding. The embodiments of the present disclosure are not limited thereto.

[0184] FIG. 21A is a schematic cross-sectional view along line A-B of FIG. 18 of the display panel in an embodiment of the present disclosure.

[0185] For example, in some embodiments, it is a schematic cross-sectional view along line A-B of FIG. 18 of the display panel shown in FIG. 21A, and the display panel 1000 further includes a liquid crystal panel 1000a and a backlight module 1001a. The backlight module 1001a includes a metal reflector 1002a on the side away from the liquid crystal panel 1000a, and the reflective layer 1300 is the metal reflector 1002a or a part of the metal reflector 1002a. In the above design, using the metal reflector 1002a in the backlight module 1001a as the reflective layer 1300 reduces the film layer of the display panel 1000, is advantageous for thinning the display panel 1000, and improves the integration degree of the functions of the display panel 1000.

[0186] For example, the liquid crystal panel 1000a includes an array substrate 1005a and a color filter substrate 1003a. The display substrate 1100 may be the array substrate 1005a or the color filter substrate 1003a. The array substrate 1005a or the color filter substrate 1003a is an example of the display substrate in the above embodiments. The liquid crystal panel 1000a further includes a liquid crystal layer 1004a located between the array substrate 1005a and the color filter substrate 1003a. The liquid crystal layer 1000a is hermetically contacted (i.e., seamless contact) with the array substrate 1005a and the color filter substrate 1003a by a frame sealant. The backlight module 1001a further includes a backlight layer 1006a located between the metal reflector 1002a and the array substrate 1005a. For example, the backlight layer 1006a includes a light guide plate, and an optical signal is transmitted through the light guide plate to the first side of the display panel.

[0187] For example, in some embodiments, the display device includes a touch module 1800a, the touch module 1800a further includes a touch layer 1802a, the touch layer is located between the antenna layer 1200a and the liquid crystal panel 1000a, and the touch layer and the antenna layer are provided for insulation. The display device includes an insulating layer 1801a between the touch layer 1802a and the antenna layer 1200a. The touch layer 1802a is insulated between the insulating layer 1801a and the antenna layer 1200a. For example, the touch layer 1802a can be electrically connected to a touch processor (touch chip) to realize a touch function. For example, the touch layer 1802a can be implemented as various types such as, for example, a resistive or capacitive touch configuration, and the capacitive touch structure can be a self-capacitive type or a mutual-capacitive type. The self-capacitive touch configuration includes a plurality of (same layer) self-capacitive electrodes arranged in an array, and each self-capacitive electrode is electrically connected to the touch processor via a touch lead. Position detection is realized, for example, by detecting a change in the capacitance of the self-capacitive electrode due to the approach of a finger during touch. The mutual-capacitive touch configuration includes excitation electrodes and sense electrodes arranged in the same layer in a crossed manner to enable the touch function of the display substrate. In this touch configuration, for example, the sense electrodes are divided into a plurality of sections, the excitation electrodes are continuous, and at the position where the excitation electrodes and the sense electrodes cross, a bridge electrode located in a layer different from the excitation electrodes and the sense electrodes is provided to electrically connect two adjacent sections of the sense electrodes to each other. By providing the sense electrodes and the excitation electrodes, the touch sensitivity of the display substrate can be improved.

[0188] For example, the material of the touch layer 1802a includes indium tin oxide (ITO), whereby a transparent electrode is obtained, or includes a metal grid, and similarly, a transparent electrode is obtained. The thickness of the touch layer 1802a is 10 microns or more. Specifically, the touch layer includes a touch electrode.

[0189] For example, the material of the insulating layer 1801a includes a transparent insulating material, such as polyethylene terephthalate (PET) insulating material, polyimide (Pi), etc. For example, in some embodiments, as shown in FIG. 21A, the antenna layer 1200 is provided on the touch module 1800a and is located below along the Z direction of the cover plate 1500a. The antenna layer 1200 and the metal reflector 1002a are provided to face each other in the Z direction, improving the radiation directivity of the antenna. As a result, the antenna has broadband characteristics, covers a wide frequency band, and reduces the space occupied by the antenna.

[0190] For example, in other embodiments, the liquid crystal panel 1000a shown in FIG. 21A does not include the touch module 1800a. At this time, the liquid crystal panel 1000a does not have a touch function, and the embodiments of the present disclosure are not limited thereto. For example, in an embodiment, the display device further includes a radio frequency device 1600a and a motherboard 1700a. The radio frequency device 1600a and the motherboard 1700a will be described in detail in the following embodiments. FIG. 21B is a schematic cross-sectional view along line A - B of FIG. 18 of the display panel in another embodiment of the present disclosure.

[0191] For example, in some embodiments, as shown in FIG. 21B, the display device further includes a polarizing film 1900. The polarizing film 1900 is provided on the side where the antenna layer 1200a is away from the display panel (e.g., the liquid crystal panel 1000a). For example, the polarizing film 1900 is provided over the entire surface. For example, the polarizing film has a reflecting effect, reduces the reflection of the metal grid (antenna pattern 1240) of the antenna layer, and further improves the optical effect.

[0192] For example, in other embodiments, the polarizing film 1900 is not provided over the entire surface. For example, at least a part of the orthographic projection of the polarizing film 1900 on the plane where the light emitting surface of the display panel is located overlaps with the orthographic projection of the metal grid (antenna pattern 1240) of the antenna layer 1200a on the plane where the light emitting surface of the display panel is located.

[0193] For example, in some embodiments, as shown in the schematic cross-sectional view along line A-B of FIG. 18 of the display panel shown in FIG. 22, the display panel 1000 further includes an organic light-emitting diode display panel 1000b. The organic light-emitting diode display panel 1000b includes a first substrate 1003b, a second substrate 1005b, and a light-emitting display layer 1004b therebetween. The reflective layer 1300 functions as the metal heat dissipation layer 1002b of the organic light-emitting diode display panel 1000b, reduces the number of film layers of the display panel, is advantageous for thinning the display panel, and improves the integration degree of the functions of the display panel.

[0194] For example, the organic light-emitting diode display panel 1000b includes a second substrate 1005b and a first substrate 1003b. The display substrate 1100 may be the second substrate 1005b or the first substrate 1003b, that is, the second substrate 1005b or the first substrate 1003b is an example of the display substrate in the above embodiments. The organic light-emitting diode display panel 1000b further includes a light-emitting display layer 1004b located between the second substrate 1005b and the first substrate 1003b. In this example, the light-emitting unit of the second substrate 1005b emits, for example, white light. At this time, the first substrate 1003b may be a color filter substrate.

[0195] Also, in another example, the organic light-emitting diode display panel 1000b may not include the first substrate 1003b. At this time, the light-emitting unit on the second substrate can emit color light by itself.

[0196] For example, the display panel 1000b of the organic light-emitting diode includes a touch module 1800b provided on a first substrate 1003b. The touch module 1800b includes a touch layer 1802b and a touch insulating layer 1801b, and the touch insulating layer 1801b is located between the touch layer 1802b and the antenna layer 1200b. The touch layer 1802b is insulated from the antenna layer 1200b via the touch insulating layer 1801b. For example, the touch layer 1802b can be electrically connected to a touch processor (touch chip) to realize a touch function. For example, the touch layer 1802b can be implemented as various types such as, for example, a resistive or capacitive touch configuration, and the capacitive touch structure can be a self-capacitive type or a mutual-capacitive type. The self-capacitive touch configuration includes a plurality of (same layer) self-capacitive electrodes arranged in an array, and each self-capacitive electrode is electrically connected to a touch processor via a touch lead. Position detection is realized, for example, by detecting a change in the capacitance of the self-capacitive electrode due to the approach of a finger during touch. The mutual-capacitive touch configuration includes excitation electrodes and sense electrodes arranged in the same layer in an intersecting manner to enable the touch function of the display substrate. In this touch configuration, for example, the sense electrodes are divided into a plurality of sections, the excitation electrodes are continuous, and at the positions where the excitation electrodes and the sense electrodes intersect, bridge electrodes located in different layers from the excitation electrodes and the sense electrodes are provided to electrically connect two adjacent sections of the sense electrodes to each other. By providing the sense electrodes and the excitation electrodes, the touch sensitivity of the display substrate can be improved.

[0197] For example, the material of the touch layer 1802b includes indium tin oxide (ITO), whereby a transparent electrode is obtained, or includes a metal grid, and similarly, a transparent electrode is obtained. The thickness of the touch layer 1802b is 10 microns or more.

[0198] For example, the material of the touch insulating layer 1801b includes transparent insulating materials such as, for example, polyethylene terephthalate PET insulating material, polyimide (Pi), etc.

[0199] For example, in some embodiments, as shown in FIG. 22, the antenna layer 1200 is provided on the touch module 1800b and is located below the cover plate 1500 along the Z direction. The antenna layer 1200b and the metal heat dissipation layer 1002b are provided opposite to each other in the Z direction, improving the radiation directivity of the antenna. As a result, the antenna has broadband characteristics, covers a wide frequency band, and reduces the space occupied by the antenna.

[0200] For example, in other embodiments, the organic light-emitting diode display panel shown in FIG. 22 may not include the touch module 1800b. At this time, the organic light-emitting diode display panel does not have a touch function, but the embodiments of the present disclosure are not limited thereto.

[0201] For example, in an embodiment, the display device further includes a radio frequency device 1600b and a motherboard 1700b. The radio frequency device 1600b and the motherboard 1700b will be described in detail in the following embodiments.

[0202] For example, an analog simulation of the antenna unit shown in FIG. 19A in the above embodiment is performed. FIG. 23A is a diagram showing the antenna radiation direction when there is no reflection layer in the display device according to an embodiment of the present disclosure, FIG. 23B is a diagram showing the antenna radiation direction when the display device according to an embodiment of the present disclosure includes a reflection layer, and FIG. 24 is a diagram showing the relationship between the port reflection coefficient and the frequency of the antenna layer of the display device according to an embodiment of the present disclosure.

[0203] For example, as shown in FIG. 23A, when there is no reflective layer 1300 on the display panel 1000, the antenna gains of the horizontal signal radiation (for example, obtained by planarizing parallel to the bottom surface at the position where the electric field strength of the beam is maximum) and the vertical signal radiation (for example, obtained by planarizing perpendicular to the bottom surface at the position where the electric field strength of the beam is maximum) in the 0° angular direction are 1.01 dBi. As shown in FIG. 23B, when the reflective layer 1300 is provided on the display panel 1000, the antenna gains of the horizontal signal radiation and the vertical signal radiation in the 0° angular direction are 2.23 dBi. As can be seen from the above results, by providing the reflective layer 1300 on the display panel 1000, the antenna gain is improved by more than 1 time compared to the case where the reflective layer 1300 is not provided. Therefore, by providing the reflective layer 1300, the radiation directivity of the antenna can be improved.

[0204] As shown in FIGS. 17 and 24, when the reflective layer 1300 is provided on the display panel 1000, according to the relationship curve between the port reflection coefficient of the antenna layer 1200 and the frequency, the antenna radiation of the antenna layer 1200 can cover the millimeter-wave frequency bands of n257 (26.5 - 29.5 GHz) and n258 (24.25 - 27.5 GHz) defined by the 3GPP standard. Therefore, by providing the reflective layer 1300 on the display panel 1000, the antenna has broadband characteristics, covers a wide frequency band, and reduces the space occupied by the antenna.

[0205] For example, in an embodiment, the display device 100 may be a display device of a quantum dot light-emitting diode, an electronic paper display device, etc., and may be used in mobile devices such as mobile phones, navigation devices, tablets, and notebook computers, and may also be applied to virtual reality devices and augmented display devices. Of course, it may also be applied to other types of display devices, but the embodiments of the present disclosure are not limited thereto.

[0206] For example, in some embodiments, the display device further includes a radio frequency device, which is located on the side of the reflective layer away from the display substrate. At least one antenna layer includes at least one antenna unit, and at least one antenna unit includes a pattern portion and a bonding portion respectively. The pattern portion is electrically connected to the bonding portion, and the bonding portion is located in the peripheral region of the display substrate. The display panel further includes a feed line, and the feed line signals the bonding portion and the radio frequency device to provide a signal connection to the antenna unit. The antenna layer transmits its signal to the radio frequency device via the feed line to realize an effective connection between the radio frequency front end and the antenna pattern.

[0207] FIG. 25 is a block diagram of a display device according to an embodiment of the present disclosure. As shown in FIG. 25, the display device includes a display panel 1000, an antenna unit 1201, and a mother board 1700. As shown in FIGS. 17, 21A, and 22, the radio frequency device 1600 (the radio frequency device 1600a in FIG. 21A and the radio frequency device 1600b in FIG. 22) is provided on the side of the mother board 1700 (the radio frequency device 1700a in FIG. 21A and the radio frequency device 1700b in FIG. 22) facing the display panel 1000, that is, located on the side of the reflective layer 1300 away from the display panel 1000. The antenna layer 1200 is electrically connected to the radio frequency device 1600 via a feed line 1400, and the feed line 1400 realizes signal transmission between the antenna layer 1200 and the radio frequency device 1600. For example, the radio frequency device 1600 includes a radio frequency integrated circuit (RFIC) and communicates with a communication signal (for example, an RF signal).

[0208] For example, the motherboard 1700 is a printed circuit board (PCB) motherboard and may be connected to the display panel via a flexible circuit board. For example, the motherboard 1700 may be folded onto the second side (i.e., the back side) of the display panel 1000. The motherboard 1700 may include a central controller 1701, a communication processor 1704, and a display processor 1703. The display processor 1703 is electrically connected to the central controller 1701 and the display panel 1000, and provides a display control signal to the display panel 1000 to control the display of the display panel 1000. The communication processor 1704 is electrically connected to the radio frequency device 1600 and the central controller 1701 to realize signal control of the antenna unit 1201.

[0209] For example, the display panel 1000 may be a touch panel 1801 having a touch function. In this embodiment, the motherboard 1700 further includes a touch processor 1702, and the touch processor 1702 is electrically connected to the central processor 1701 and the touch module of the touch panel 1801 to realize the touch function.

[0210] It should be noted that the functional modules included in the above motherboard 1700 are only examples, and the motherboard 1700 can include several other functional modules, which do not limit the embodiments of the present disclosure in any way.

[0211] An embodiment of the present disclosure further provides an electronic device including a display panel, an antenna layer, and a reflective layer. The antenna layer includes at least one antenna unit and is provided on the display side of the display panel. The reflective layer is provided on the non-display side of the display panel. The distance in the thickness direction of the display panel between the antenna layer and the reflective layer is 1 / 8 to 3 / 8 of the operating wavelength of the antenna unit. By arranging the distance between the antenna layer and the reflective layer within the above range, the radiation directivity and intensity of the antenna are improved, and the antenna has broadband characteristics. The relationship between the operating wavelength and the operating frequency of the antenna unit is that the operating wavelength = the speed of light / the operating frequency.

[0212] For example, in other embodiments, for example, when the display panel is an OLED display panel, the distance in the thickness direction of the display panel between the antenna layer and the reflective layer may not be within the range of 1 / 8 of the operating wavelength of the antenna unit to 3 / 8 of the operating wavelength of the antenna unit. Depending on the selection of the display panel, the distance in the thickness direction of the display panel between the antenna layer and the reflective layer is determined, but the embodiments of the present disclosure are not limited thereto.

[0213] FIG. 26A is a schematic cross-sectional view taken along line A-B of FIG. 18 of a display device in another embodiment of the present disclosure. FIG. 26B is a schematic cross-sectional view taken along line A-B of FIG. 18 of a display device in another embodiment of the present disclosure.

[0214] For example, in one embodiment, the display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, and the reflective layer is the metal reflector. As shown in FIG. 26A, the display panel includes a liquid crystal panel 1000c and a backlight module 1001c. The backlight module 1001c includes a metal reflector 1002c on the side away from the liquid crystal panel 1000c, and the reflective layer is the metal reflector 1002c or a part of the metal reflector 1002c. In the above design, by using the metal reflector 1002c in the backlight module 1001c as the reflective layer 1300, the number of film layers of the display panel is reduced, which is beneficial to the thinning of the display panel 1000, and the integration degree of the functions of the display panel is improved. The antenna layer 1200c is provided on the touch module 1800c in an insulating manner and is located below the cover plate 1500c along the Z direction. The antenna layer 1200c is provided opposite to the metal reflector 1002c in the Z direction, so as to improve the radiation directivity of the antenna, have broadband characteristics of the antenna, cover a wide frequency band of frequencies, and reduce the space occupied by the antenna.

[0215] For example, in one embodiment, the frequency range corresponding to the operating wavelength of the antenna radiated from the antenna layer is 26.5 GHz to 29.5 GHz or 24.25 GHz to 27.5 GHz. The frequency in the range of 26.5 GHz to 29.5 GHz is the operating frequency band of n257 defined in the 3GPP standard (the third-generation mobile communication standard based on the GSMMAP core network and using WCDMA (registered trademark) as the air interface). The frequency in the range of 24.25 GHz to 27.5 GHz is the operating frequency band of n258 defined in the 3GPP standard. Both of the above two frequency ranges are within the frequency range of the 5G network.

[0216] For example, as shown in FIG. 26A, the distance range Z1c in the thickness direction of the liquid crystal panel 1000c between the antenna layer 1200c and the reflective layer (metal reflector 1002c) (the distance between the center of the thickness of the antenna and the center of the thickness of the reflective layer) is 0.5 mm to 1.5 mm, for example, 0.7 mm to 1.3 mm, thereby ensuring the intensity of antenna radiation. If the distance between the antenna and the reflective layer is too large or too small, it may reduce the intensity of antenna radiation or the directional characteristics of antenna radiation.

[0217] For example, in one embodiment, the display panel includes an organic light emitting diode display panel, and the reflective layer is the metal heat dissipation layer of the organic light emitting diode display panel. As shown in FIG. 26B, the display panel further includes an organic light emitting diode display panel 1000d. The organic light emitting diode display panel 1000d includes a first substrate 1003d, a second substrate 1005d, and a light emitting display layer 1004d therebetween. The reflective layer functions as the metal heat dissipation layer 1002d of the organic light emitting diode display panel 1000d, reducing the number of film layers of the display panel, being advantageous for thinning of the display panel, and improving the integration degree of the functions of the display panel. The antenna layer 1200d is insulatingly provided on the touch module 1800d and is located below along the Z direction of the cover plate 1500d. By being provided opposite to the metal heat dissipation layer 1002d in the Z direction, the antenna layer 1200d improves the radiation directivity of the antenna, has broadband characteristics of the antenna, covers a frequency band of a wide frequency, and reduces the space occupied by the antenna.

[0218] For example, in one embodiment, the frequency range corresponding to the operating wavelength of the antenna radiated from the antenna layer is 26.5 GHz to 29.5 GHz or 24.25 GHz to 27.5 GHz. The frequencies in the range of 26.5 GHz to 29.5 GHz are the operating frequency bands of n257 defined in the 3GPP standard (the third-generation mobile communication standard established with the GSMMAP core network as the basis and WCDMA (registered trademark) as the air interface), and the frequencies in the range of 24.25 GHz to 27.5 GHz are the operating frequency bands of n258 defined in the 3GPP standard. Both of the above two frequency ranges are within the frequency range of the 5G network.

[0219] For example, as shown in FIG. 22, the distance range Z1d (the distance between the center line of the antenna and the reflective layer) in the thickness direction (i.e., the Z direction) of the display panel 1000d of the organic light-emitting diode with the antenna layer 1200d and the reflective layer (metal heat dissipation layer 1002d) is 0.5 mm to 1.5 mm, for example, 0.7 mm to 1.3 mm. Thereby, the intensity of the antenna radiation is ensured. If the distance between the antenna and the reflective layer is too large or too small, it may reduce the intensity or the directional characteristics of the antenna radiation.

[0220] With the electronic device in the above embodiment, by using the metal reflector in the backlight module of the liquid crystal panel as the reflective layer or using the metal heat dissipation layer of the organic light-emitting diode display panel as the reflective layer, the radiation directivity of the antenna is improved, the antenna has broadband characteristics, the space occupied by the antenna is reduced, and the integration degree of the functions of the display panel is further improved without affecting the thickness of the display panel.

[0221] For example, in the above embodiment, the electronic device may be an electronic paper, a mobile phone, a tablet, a television, a monitor, a notebook computer, a digital photo frame, a navigator, or the like.

[0222] An embodiment of the present disclosure further provides an electronic device including a display panel, an antenna layer, and a reflective layer. The antenna layer includes at least one antenna unit. The antenna layer is provided on the display side of the display panel. The reflective layer is provided on the non-display side of the display panel. The orthographic projection of the antenna unit on the plane where the light-emitting surface of the display panel is located is within the orthographic projection of the reflective layer on the plane where the light-emitting surface of the display panel is located. Since the orthographic projection of the antenna unit on the plane where the light-emitting surface of the display panel is located is within the orthographic projection of the reflective layer on the plane where the light-emitting surface of the display panel is located, the radiation directivity and intensity of the antenna are improved, and the antenna has broadband characteristics.

[0223] FIG. 27 is a plan view of a display device in another embodiment of the present disclosure.

[0224] For example, as shown in FIG. 27, the orthographic projection onto the plane where the light-emitting surface of the display panel of the antenna unit 1210d is located is within the orthographic projection onto the plane where the light-emitting surface of the display panel 1000d of the reflective layer 1300d is located, thereby improving the radiation directivity and intensity of the antenna, and enabling the antenna to have broadband characteristics. When the electronic device includes a plurality of antenna units, the orthographic projection onto the plane where the light-emitting surfaces of the display panels of all the antenna units are located is within the orthographic projection onto the plane where the light-emitting surface of the display panel 1000d of the reflective layer 1300d is located. In this way, the antenna has better radiation efficiency.

[0225] For example, in an embodiment, the display panel includes a liquid crystal panel and a backlight module. The backlight module includes a metal reflector, and the reflective layer is the metal reflector. As shown in FIG. 26A, the display panel includes a liquid crystal panel 1000c and a backlight module 1001c. The backlight module 1001c includes a metal reflector 1002c on the side away from the liquid crystal panel 1000c, and the reflective layer is the metal reflector 1002c or a part of the metal reflector 1002c. In the above design, by using the metal reflector 1002c in the backlight module 1001c as the reflective layer 1300, the number of film layers of the display panel is reduced, which is beneficial for thinning the display panel 1000, and improves the integration degree of the functions of the display panel. The antenna layer 1200c is provided insulatingly on the touch module 1800c (including a touch layer 1801c and an insulating layer 1802c), and is located below the cover plate 1500c along the Z direction. The antenna layer 1200c is provided opposite to the metal reflector 1002c in the Z direction, improving the radiation directivity of the antenna, enabling the antenna to have broadband characteristics, covering a wide frequency band, and reducing the space occupied by the antenna.

[0226] For example, in one embodiment, the display panel further includes an organic light-emitting diode display panel, and the reflective layer is a metal heat dissipation layer of the organic light-emitting diode display panel. As shown in FIG. 26B, the display panel further includes an organic light-emitting diode display panel 1000d. The organic light-emitting diode display panel 1000d includes a first substrate 1003d, a second substrate 1005d, and a light-emitting display layer 1004d therebetween. The reflective layer functions as a metal heat dissipation layer 1002d of the organic light-emitting diode display panel 1000d, reduces the number of film layers of the display panel, is advantageous for thinning of the display panel, and improves the integration degree of the functions of the display panel. The antenna layer 1200d is provided insulatively on the touch module 1800d (including a touch layer 1801d and an insulating layer 1802d), and is located below along the Z direction of the cover plate 1500d. The antenna layer 1200d is provided opposite to the metal heat dissipation layer 1002d in the Z direction, improves the radiation directivity of the antenna, has broadband characteristics of the antenna, covers a frequency band of a wide frequency, and reduces the space occupied by the antenna.

[0227] By using, in the electronic device in the above embodiment, the metal reflector in the backlight module of the liquid crystal panel as the reflective layer or the metal heat dissipation layer of the organic light-emitting diode display panel as the reflective layer, the radiation directivity of the antenna can be improved, the antenna has broadband characteristics, the space occupied by the antenna can be reduced, and the integration degree of the functions of the display panel can be further improved without affecting the thickness of the display panel.

[0228] For example, in one embodiment, at least one antenna unit includes a pattern portion and a bonding portion. The display panel includes a display area and a non-display area. The pattern portion is provided in the display area of the display panel, and the bonding portion is provided in the non-display area of the display panel.

[0229] As shown in FIGS. 18 and 19A, the antenna unit 1210 includes a pattern portion 1220 and a bonding portion 1230 respectively. The pattern portion 1220 is electrically connected to the bonding portion 1230, and the bonding portion 1230 is located in the non-display area 1102 of the display substrate 1100. The pattern portion 1220 and the bonding portion 1230 are located in the same film layer and provided on the first side of the display substrate 1100, thereby reducing the occupied space and being advantageous for further reducing the thickness of the display panel. The pattern portion 1200 is located in the display area 1101 of the display substrate 1100 and is used for transmitting and receiving electromagnetic waves. The bonding portion 1230 is connected to the pattern portion 1220, located in the non-display area 1102 of the display substrate 1100, and is used for providing an electrical signal to the pattern portion 1220.

[0230] For example, in an embodiment, the pattern portion 1220 is provided in the display area 1101 of the display substrate 1100 of the display panel 1000. By providing the pattern portion 1220 with respect to the reflective layer 1230, the intensity of antenna radiation is ensured.

[0231] For example, in an embodiment, the bonding portion 1230 may be provided in the non-display area 1102 of the display substrate 1100 of the display panel 1000. By providing the bonding portion 1230 in the non-display area 1102, it can be ensured that the display function of the display panel 1000 is not affected.

[0232] For example, in one embodiment, at least one antenna unit includes a pattern portion, and the pattern portion includes a metal grid formed of a plurality of metal wires. Here, the line width of the plurality of metal wires is 5 microns or less, and the distance between the plurality of metal wires is 200 microns or more. As shown in FIGS. 29A and 29B, the line width L1 of the metal wire 1241 is the cross-sectional width in the direction perpendicular to the metal wire 1241. The distance D1 between the metal wires 1241 in the antenna pattern 1240 (for example, the relative perpendicular distance between two adjacent metal wires 1241) may be 200 microns or more. With the above size design, the light transmittance on the display panel can be ensured.

[0233] As shown in FIG. 19A, the pattern portion 1220 is formed of a plurality of antenna patterns 1240 (i.e., metal grids) uniformly arranged in an array, and the antenna pattern 1240 includes a plurality of metal wires 1241. The plurality of metal wires 1241 of the antenna pattern 1240 are formed as a diamond-shaped conductive grid. The antenna pattern 1240 is used to transmit and receive electromagnetic waves with the conductive grid. With the above configuration of the antenna pattern, the loss of the input electrical signal can be reduced.

[0234] For example, in other embodiments, the plurality of metal wires 1241 may also be formed as conductive grids of other shapes such as rectangles and polygons.

[0235] For example, in some embodiments, the material of the metal wire 1241 includes low-resistance and low-loss metals such as copper, gold, and silver.

[0236] For example, in one embodiment, as shown in FIG. 3A, at least one feed line of the antenna unit includes a first feed line and a second feed line, and the antenna unit is a dual-polarization antenna. The first feed line 320 is located on the first side of the radiation element 310 and is electrically connected to the radiation element 310. The second feed line 330 is located on the second side of the radiation element 310 and is electrically connected to the radiation element 310. In the example of FIG. 3A, the plurality of ground connection portions include a first ground connection portion 3401, a second ground connection portion 3402, a third ground connection portion 3403, and a fourth ground connection portion 3404, which are hereinafter collectively referred to as the ground connection portion 340. The first ground connection portion 3401 and the second ground connection portion 3402 are respectively located on both sides of the first feed line 320, and the third ground connection portion 3403 and the fourth ground connection portion 3404 are respectively located on both sides of the second feed line 339. For example, as shown in FIG. 3A, the radiation element 310, the first feed line 320, the second feed line 330, and the plurality of ground connection portions 340 are located in the same layer in the display device. For example, a first coplanar waveguide is formed by a part of the first feed line 320 located between both the first ground connection portion 3401 and the second ground connection portion 3402, and a second coplanar waveguide is formed by a part of the second feed line 330 located between both the third ground connection portion 3403 and the fourth ground connection portion 3404. With such a coplanar waveguide configuration, the resonance parameters of the dual-polarization antenna can be adjusted, the bandwidth can be increased, and the radiation performance of the antenna can be further improved.

[0237] For example, in the above embodiment, the electronic device may be an electronic paper, a mobile phone, a tablet, a television, a monitor, a notebook computer, a digital photo frame, a navigator, or the like.

[0238] At least one embodiment of the present disclosure provides a method for manufacturing a display device, and further provides a display panel. The display panel includes a display area and a non-display area that at least partially surrounds the display area. On a first side of the display panel for display, at least one antenna unit is formed along at least one edge of the display panel, and a reflective layer is formed on a second side of the display panel opposite to the first side. The reflective layer and at least one antenna unit are provided to face each other in the thickness direction of the display panel. Here, at least a part of at least one antenna unit is provided in the non-display area of the display panel.

[0239] The display device obtained by the above manufacturing method forms an antenna unit and a reflective layer facing the antenna unit, thereby improving the radiation directivity of the antenna, enabling the antenna to have broadband characteristics, reducing the space occupied by the antenna, further reducing the thickness of the display panel, and improving the integration degree of the functions of the display panel.

[0240] FIG. 28 is a flowchart of a method for manufacturing a display device according to an embodiment of the present disclosure. As shown in FIG. 28, the manufacturing method includes the following steps.

[0241] In step S100, a display panel is provided.

[0242] For example, the display panel may be a liquid crystal display panel or an organic light-emitting diode display panel.

[0243] In step S200, an antenna layer is formed on the display side of the display panel, and the antenna layer includes at least one antenna unit.

[0244] For example, in an embodiment, a touch module is formed on the display panel. After depositing a touch material layer on the display panel by thermal evaporation, electroplating, etc., the touch material layer is etched to form touch electrodes of the touch layer, and then a touch insulating layer is formed on the touch layer by a substrate, spin coating, etc.

[0245] For example, forming an antenna layer on the touch module includes depositing a first metal material on a first side of the display substrate using a magnetron sputtering process to form a first metal layer, and performing an etching process on the first metal layer to form the antenna layer. The antenna layer is formed to include at least one antenna unit, and the antenna unit includes a pattern portion and a bonding portion. The pattern portion is determined by an antenna pattern composed of metal wires formed of the first metal material uniformly arranged in an array.

[0246] For example, in another example, when the display panel does not have a touch function, the antenna layer may be directly formed without forming the touch module on the display side of the display panel.

[0247] For example, at least a part of the antenna layer 1200 is provided in the non-display area 1102 of the display substrate 1100.

[0248] For example, the first metal material includes low-resistance and low-loss metals such as copper, gold, and silver.

[0249] For example, in another embodiment, after depositing the first metal material by thermal evaporation, electroplating, etc. on the first side to form the first metal layer, the first metal layer may be etched to form the antenna layer.

[0250] For example, in an embodiment, manufacturing the antenna unit includes forming the antenna unit on a first side for display of the display panel. Here, forming the antenna unit on the first side for display of the display panel includes forming a flexible substrate on the first side of the display panel, forming a metal layer on the flexible substrate, etching the metal to form an antenna, and forming an adhesive protection layer on a side of the metal layer away from the display panel.

[0251] For example, in one embodiment, manufacturing the antenna unit by forming the antenna unit on the first side of the display for the display panel further includes forming an inactivation protection layer between the metal layer and the adhesive protection layer.

[0252] For example, in one embodiment, manufacturing the antenna unit by forming the antenna unit on the first side of the display for the display panel further includes forming an antenna insulating layer on the side of the metal layer closer to the display panel.

[0253] Figures 29A to 29E are schematic diagrams of the manufacturing process of the antenna unit in the embodiments of the present disclosure. For example, Figures 29A to 29E will be described by taking the formation of the antenna unit shown in Figure 2A as an example.

[0254] As shown in Figure 29A, a flexible substrate 41 is formed on the first side of the display panel. The flexible substrate 41 is, for example, the flexible substrate 40 in Figure 2A. An antenna insulating layer 411 is formed on the flexible substrate 41. For example, an insulating material, such as a silica material, is deposited (for example, by chemical vapor deposition) on the flexible substrate 41 to form the antenna insulating layer 411. For example, the antenna insulating layer 411 may be a buffer layer. For example, the value range of the thickness of the antenna insulating layer 411 is, for example, about 80 Å to 120 Å, or, for example, about 90 Å to 100 Å. For example, the value of the thickness of the antenna insulating layer 411 is, for example, about 100 Å.

[0255] As shown in FIG. 29B, a metal layer 31 is formed on the antenna insulating layer 411. For example, a metal material is deposited on the antenna insulating layer 411 by a method such as a magnetron sputtering manufacturing process, thermal evaporation, electroplating, or a pressing process to form the metal layer 31. For example, the metal layer may be a single-layer metal or a stack of multilayer metals. For example, the single-layer metal includes copper or the like. The stack of multilayer metals includes a stack configuration of MoNb / Cu / CuNi / MoNbNx. The range of the thickness value of the MoNb metal layer is, for example, about 250 Å to 350 Å. The range of the thickness value of the Cu metal layer is, for example, about 6000 Å to 8000 Å. The range of the thickness value of the CuNi metal layer is, for example, about 400 Å to 600 Å. The range of the thickness value of the MoNbNx metal layer is, for example, about 500 Å to 600 Å. The thickness values of the respective layers of the stack of the multilayer metal (MoNb / Cu / CuNi / MoNbNx) are, for example, about 300 Å, 7000 Å, 500 Å, and 550 Å. For example, the antenna insulating layer 411 can improve the bonding strength between the metal layer 31 and the flexible substrate 41.

[0256] As shown in FIG. 29C, an etching process is performed on the metal layer to form an antenna 32 (for example, the dual-polarization antenna 30 shown in FIG. 2A).

[0257] As shown in FIG. 29D, an insulating material is deposited (for example, chemical vapor deposition) on the antenna 32 to form a passivation protection layer 51. For example, the material of the passivation protection layer 51 includes an insulating material such as silica or silicon nitride. For example, the range of the thickness value of the passivation protection layer 51 is, for example, about 1500 Å to 2100 Å. For example, the thickness value of the passivation protection layer 51 is, for example, about 1800 Å. For example, the passivation protection layer 51 protects the antenna 32 and prevents the antenna 32 from being oxidized or corroded.

[0258] As shown in FIG. 29E, an insulating material is deposited (e.g., chemical vapor deposition) on the inactivation protection layer 51 to form an adhesive protection layer 51. The adhesive protection layer 51 is, for example, the first adhesive layer 50 in FIG. 2A. The adhesive protection layer 51 is used to adhere the antenna unit to other film layers, such as the protection layer 10. For example, the range of the value of the thickness of the adhesive protection layer 51 is, for example, about 1.5 μm to 2.5 μm. For example, the value of the thickness of the adhesive protection layer 51 is, for example, about 2 μm.

[0259] In addition, in the embodiments of the present disclosure, "about" indicates that, for example, the value is changed within the range of ±5% or ±15%.

[0260] In step S300, a reflective layer is formed on the non-display side of the display panel.

[0261] For example, the reflective layer is realized as a metal reflector on the side away from the liquid crystal panel of the backlight module of the liquid crystal panel, or as a metal heat dissipation layer of the display panel of the organic light-emitting diode.

[0262] For example, in some embodiments, the manufacturing method further includes forming a feed line and electrically connecting the feed line to the antenna layer, and the feed line provides an electrical signal to the antenna layer by signal-connecting the antenna layer to a radio frequency device. The antenna layer may transmit its signal to the radio frequency device via the feed line to realize an effective connection between the radio frequency front end and the antenna pattern.

[0263] For example, in some embodiments, the manufacturing method further includes forming a cover plate on the display side of the display panel and providing at least one antenna layer on the surface of the first side of the cover plate facing the display substrate. For example, the cover plate is a transparent glass cover plate made of a glass material to ensure the light transmittance of the display panel. In addition, when the antenna layer is formed, the manufacturing method may directly form the cover plate on the side of the antenna layer away from the display panel. The cover plate can protect the antenna layer.

[0264] In addition, in a plurality of embodiments of the present disclosure, the process of the manufacturing method of the display device may include more or fewer operations, and they may be executed sequentially or in parallel. It should be clearly understood that the process of the above-described manufacturing method includes a plurality of operations that occur in a specific order, but the order of the plurality of operations is not limited. The above-described manufacturing method may be performed once or may be performed multiple times according to predetermined conditions.

[0265] Attention should be paid to the following points. (1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures can refer to normal designs. (2) Within a non-contradictory range, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0266] The above description is only an exemplary implementation of the present disclosure and is not used to limit the protection scope of the present disclosure. The protection scope of the present disclosure is determined by the appended claims.

Description of Reference Numerals

[0267] 310 Radiation body 320 Feed line 330 Feed line 340 Ground connection part 1210 Antenna unit

Claims

1. A radiation body, At least one feed line electrically connected to the radiation body, A plurality of ground connection parts, and includes, The radiation body, the at least one feed line, and the plurality of ground connection parts are provided in the same layer, and is an antenna unit, The at least one feed line includes a first feed line and a second feed line, and the antenna unit is a dual-polarization antenna, The first feed line is located on a first side of the radiation body and is electrically connected to the radiation body, and the second feed line is located on a second side of the radiation body and is electrically connected to the radiation body, The plurality of ground connection parts includes a first ground connection part, a second ground connection part, a third ground connection part, and a fourth ground connection part. The first ground connection part and the second ground connection part are respectively located on both sides of the first feed line, and the third ground connection part and the fourth ground connection part are respectively located on both sides of the second feed line, The first feed line includes a first section close to the radiation body and a second section electrically connected to the first section. The first section is electrically connected to the radiation body, and the second section extends from the first section to between the first ground connection part and the second ground connection part, The second feed line includes a third section close to the radiation body and a fourth section electrically connected to the third section. The third section is electrically connected to the radiation body, and the fourth section extends from the third section to between the third ground connection part and the fourth ground connection part, The radiation body has a symmetric contour, and the first section and the third section are symmetric with respect to the symmetry axis of the radiation body. The symmetry axis of the radiation body is a diagonal line drawn from the included angle formed by the first side and the second side of the radiation body, The first ground connection part, the second ground connection part, the third ground connection part, and the fourth ground connection part are arranged along a reference direction, The symmetry axis of the radiation body is perpendicular to the reference direction, At least one of the first section and the third section is perpendicular to the symmetry axis of the radiation body, At least one of the second section and the fourth section is perpendicular to the reference direction, An antenna unit.

2. The second ground connection part is electrically connected to the third ground connection part. The antenna unit according to claim 1.

3. The radiation body has a square contour. The antenna unit according to claim 1.

4. The position where the third section is electrically connected to the radiation body and the position where the first section is electrically connected to the radiation body are symmetric with respect to the symmetry axis of the radiation body. The antenna unit according to claim 1.

5. A first protrusion is provided on the side of the second ground connection part facing the radiation body, and the two opposing sides of the first protrusion and the radiation body are parallel to each other. A second protrusion is provided on the side of the third ground connection part facing the radiation body, and the two opposing sides of the second protrusion and the radiation body are parallel to each other. The antenna unit according to any one of claims 1 to 4.

6. The length of the first feed line is greater than the length of the second feed line. The first ground connection part includes a first main body part and a first stripe part. The first stripe part is located on the side of the first main body part facing the first feed line and extends parallel to the first feed line. The second ground connection part includes a second main body part and a second stripe part. The second stripe part is located on the side of the second main body part facing the first feed line and extends parallel to the first feed line. The antenna unit according to any one of claims 1 to 5.

7. The distance between the first stripe part and the first feed line is equal to the distance between the first main body part and the first feed line, and the distance between the second stripe part and the first feed line is equal to the distance between the second main body part and the first feed line. The antenna unit according to claim 6.

8. The distance between the first feed line and the first ground connection part and the second ground connection part is equal to an integer multiple of the line width of the first feed line, and the distance between the second feed line and the third ground connection part and the fourth ground connection part is equal to an integer multiple of the line width of the second feed line. The antenna unit according to any one of claims 1 to 7.

9. The distance between the second ground connection part and the third ground connection part is greater than 0.2 mm. The antenna unit according to claim 1.

10. Any one of the radiation body, the first feed line, the second feed line, and the plurality of ground connection parts is a metal grid, The antenna unit according to any one of Claims 1 to 9.

11. The grid lines of the metal grid are respectively parallel to the contour line of the metal grid, The antenna unit according to Claim 10.

12. The grid lines of the metal grid respectively form a second predetermined angle with the contour line of the metal grid, The antenna unit according to Claim 10.

13. The unit cell of the metal grid is a square, triangle, rhombus, hexagon, or octagon, The antenna unit according to any one of Claims 10 to 12.

14. At least a part of the radiation body is electrically connected to the at least one feed line, The antenna unit according to Claim 1.

15. A part of the radiation body is electrically connected to at least one feed line, A portion of the radiation body that is not electrically connected to the at least one feed line is signal-coupled to a portion of the radiation body that is electrically connected to the at least one feed line, The antenna unit according to Claim 14.

16. A display device including a display panel, an antenna layer, and a reflection layer, The antenna layer includes at least one antenna unit according to any one of Claims 1 to 15, and at least one of the antenna units is provided on the display side of the display panel, The reflection layer is provided on the non-display side of the display panel, The display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, and the reflection layer is the metal reflector, or the display panel includes an organic light emitting diode display panel, and the reflection layer is the metal heat dissipation layer of the organic light emitting diode display panel, Display device.

17. At least one of the antenna units includes a plurality of the antenna units, and at least one of the four edges of the display device is provided with at least one of the antenna units, The display device according to Claim 16.

18. A plurality of the antenna units are provided on any one of the four edges of the display device, The display device according to Claim 17.

19. An electronic device including a display panel, an antenna layer, and a reflective layer, wherein the antenna layer includes at least one antenna unit according to any one of claims 1 to 15, and at least one of the antenna layers is provided on the display side of the display panel, and the reflective layer is provided on the non-display side of the display panel. Electronic device.

20. The display panel includes a liquid crystal panel and a backlight module, the backlight module includes a metal reflector, and the reflective layer is the metal reflector, or the display panel includes an organic light emitting diode display panel, and the reflective layer is a metal heat dissipation layer of the organic light emitting diode display panel. The electronic device according to claim 19.

21. A positive projection of the light emitting surface of the display panel of at least one of the antenna units onto a plane where the light emitting surface of the display panel is located is within a positive projection of the reflective layer onto the plane where the light emitting surface of the display panel is located. The electronic device according to claim 20.

22. Providing a flexible substrate; Forming a metal layer on the flexible substrate and etching the metal layer to form an antenna, the antenna including a radiation body, at least one feed line connected to the radiation body, and a plurality of ground connection parts; Forming an adhesive protection layer on a side of the antenna away from the display panel. A method for manufacturing an antenna unit, wherein the at least one feed line includes a first feed line and a second feed line, the antenna unit is a dual polarization antenna, the first feed line is located on a first side of the radiation body and is electrically connected to the radiation body, the second feed line is located on a second side of the radiation body and is electrically connected to the radiation body, the plurality of ground connection parts includes a first ground connection part, a second ground connection part, a third ground connection part, and a fourth ground connection part, the first ground connection part and the second ground connection part are respectively located on both sides of the first feed line, and the third ground connection part and the fourth ground connection part are respectively located on both sides of the second feed line. The first feed line includes a first section close to the radiation body and a second section electrically connected to the first section. The first section is electrically connected to the radiation body, and the second section extends from the first section to between the first ground connection part and the second ground connection part. The second feed line includes a third section close to the radiation body and a fourth section electrically connected to the third section. The third section is electrically connected to the radiation body, and the fourth section extends from the third section to between the third ground connection part and the fourth ground connection part. The radiation body has a symmetric contour. The first section and the third section are symmetric with respect to the symmetry axis of the radiation body. The symmetry axis of the radiation body is a diagonal line drawn from the included angle formed between the first side and the second side of the radiation body. The first ground connection part, the second ground connection part, the third ground connection part, and the fourth ground connection part are arranged along a reference direction. The symmetry axis of the radiation body is perpendicular to the reference direction. At least one of the first section and the third section is perpendicular to the symmetry axis of the radiation body, and at least one of the second section and the fourth section is perpendicular to the reference direction. A method for manufacturing an antenna unit.

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