Antenna structure, display panel and electronic device

Abstract

Embodiments of the present application provide an antenna structure, a display panel and an electronic device. The antenna structure comprises a millimeter wave antenna radiator, a first connection circuit, a non-millimeter wave antenna radiator and a second connection circuit. By multiplexing the millimeter wave antenna radiator as part of the second connection circuit, the second connection circuit can form a filtering circuit for filtering during transmission of non-millimeter wave signals. In this way, additional filtering circuits are no longer required for non-millimeter wave signals, thereby improving the integration of the entire antenna structure and reducing the occupied area of the entire antenna structure.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more specifically, to an antenna structure, a display panel, and an electronic device. Background Technology

[0002] With the advancement of electronic communication technology, 5G communication (fifth-generation mobile communication) is being used more and more widely. The spectrum of 5G communication includes both millimeter-wave (mm-Wave) and non-mm-wave bands. Millimeter waves have a wider bandwidth than non-mm-wave bands, resulting in higher channel capacity and thus faster data transmission rates. Common electronic devices are equipped with both millimeter-wave and non-mm-wave antennas. However, due to the higher propagation loss and weak penetration of the millimeter-wave band, electronic devices requiring millimeter-wave communication typically use a larger number of millimeter-wave antennas, often arranged in antenna arrays (consisting of two or more antenna elements). With the increasing demand for miniaturization and portability of electronic devices, improving the integration of the entire antenna structure and reducing its footprint has become a pressing issue. Summary of the Invention

[0003] To overcome at least one of the technical problems mentioned in the above background, embodiments of this application provide an antenna structure, the antenna structure comprising:

[0004] A millimeter-wave antenna includes a millimeter-wave radiator and a first connection line, the first connection line being used to connect the millimeter-wave radiator to a millimeter-wave signal processing chip;

[0005] A non-millimeter-wave antenna includes a non-millimeter-wave radiator and a second connection line, the second connection line being used to connect the non-millimeter-wave radiator to a non-millimeter-wave signal processing chip, the millimeter-wave radiator being connected to the second connection line and multiplexed as a part of the second connection line.

[0006] In one possible implementation, the millimeter-wave antenna is configured as at least two, and the at least two millimeter-wave antennas are arranged sequentially to form a millimeter-wave antenna array;

[0007] The millimeter-wave radiators of at least two of the millimeter-wave antennas are connected to the second connection line and multiplexed as part of the second connection line.

[0008] In one possible implementation, at least two of the millimeter-wave antennas are connected in series on the second connection line.

[0009] In one possible implementation, the second connection line includes a non-millimeter-wave connection line connecting adjacent millimeter-wave radiators, the non-millimeter-wave connection line including at least two different line widths.

[0010] In one possible implementation, at least two of the millimeter-wave radiators comprise at least two different antenna sizes.

[0011] In one possible implementation, the first connection line is connected to the millimeter-wave radiator along a first direction, and at least two of the millimeter-wave radiators are arranged along a second direction perpendicular to the first direction; along the second direction, the at least two millimeter-wave radiators have at least two different widths.

[0012] Another object of this application is to provide a display panel, the display panel including a conductive line layer, the conductive line layer including the antenna structure provided in this application.

[0013] In one possible implementation, the display panel includes a display area and a non-display area, with at least a portion of the millimeter-wave radiator and at least a portion of the non-millimeter-wave radiator located in the display area.

[0014] In one possible implementation, the conductive circuit layer is configured as a touch electrode layer.

[0015] Another object of this application is to provide an electronic device, which includes the display panel provided in this application.

[0016] Compared with the prior art, this application has the following beneficial effects:

[0017] This application provides an antenna structure, a display panel, and an electronic device. By multiplexing a millimeter-wave radiator as part of a second connection line, the second connection line can form a filtering circuit to filter non-millimeter-wave signals during transmission. Thus, for non-millimeter-wave signals, an additional filtering circuit is no longer needed, thereby improving the integration of the entire antenna structure and reducing its footprint. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1One of the schematic diagrams of the antenna structure provided in the embodiments of this application;

[0020] Figure 2 One of the equivalent circuit diagrams for non-millimeter-wave signal transmission provided in the embodiments of this application;

[0021] Figure 3 This is a second schematic diagram of the antenna structure provided in the embodiments of this application;

[0022] Figure 4 A second equivalent circuit diagram for non-millimeter-wave signal transmission provided in the embodiments of this application;

[0023] Figure 5 This is the third schematic diagram of the antenna structure provided in the embodiments of this application;

[0024] Figure 6 Fourth schematic diagram of the antenna structure provided in the embodiments of this application;

[0025] Figure 7 This is a schematic diagram of a display panel provided in an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0031] The inventors discovered that in electronic devices equipped with millimeter-wave antennas, the antenna structure typically includes both millimeter-wave and non-millimeter-wave antennas. In some implementations, the millimeter-wave and non-millimeter-wave radiators are relatively independent, resulting in a large overall antenna structure area and hindering device miniaturization. In other implementations, to improve the integration of the overall antenna structure, the millimeter-wave radiator can be reused as part of the non-millimeter-wave radiator. However, non-millimeter-wave antennas using this structure may receive signals from other undesirable frequency bands, thus interfering with the system.

[0032] In view of this, this embodiment provides a solution that can improve the integration of antenna structure and reduce interference from non-millimeter wave communication signals. The solution provided in this embodiment will be described in detail below.

[0033] This embodiment provides an antenna structure, which includes a millimeter-wave antenna and a non-millimeter-wave antenna.

[0034] The millimeter-wave antenna includes a millimeter-wave radiator and a first connection line. The first connection line is used to connect the millimeter-wave radiator to a millimeter-wave signal processing chip.

[0035] The non-millimeter-wave antenna includes a non-millimeter-wave radiator and a second connection line. The second connection line is used to connect the non-millimeter-wave radiator to a non-millimeter-wave signal processing chip, and the millimeter-wave radiator is connected to the second connection line and multiplexed as a part of the second connection line.

[0036] For example, see Figure 1The first connection line includes a millimeter-wave connection line 120, which is used to realize signal transmission between the millimeter-wave radiator 110 and the millimeter-wave signal processing chip 310. The second connection line includes a non-millimeter-wave connection line 220, which and the millimeter-wave radiator 110 can form the second connection line as the feed line of the non-millimeter-wave antenna.

[0037] Please refer to Figure 2 , Figure 2 This is one of the equivalent circuit diagrams for non-millimeter-wave signal transmission in the antenna structure provided in this embodiment. The millimeter-wave radiator 110 can be equivalent to a filter capacitor 111, and the non-millimeter-wave connection line 220 can be equivalent to a filter inductor 221. The filter capacitor 111 and the filter inductor 221 together form a signal filtering circuit.

[0038] Based on the above design, by multiplexing the millimeter-wave radiator 110 as the second connection line, the second connection line can form a filtering circuit, thereby filtering the non-millimeter-wave signal transmission. Thus, compared to a scheme where millimeter-wave and non-millimeter-wave antennas are set up relatively independently, the solution provided in this embodiment eliminates the need for an additional filtering circuit for non-millimeter-wave signals, improving the integration of the entire antenna structure and reducing its footprint. Compared to a scheme where the millimeter-wave radiator is part of the non-millimeter-wave radiator, the solution provided in this embodiment can better filter interference in non-millimeter-wave signals, improving communication quality.

[0039] In one possible implementation, please refer to Figure 3 The millimeter-wave antennas are configured as at least two, and the at least two millimeter-wave antennas are arranged sequentially to form a millimeter-wave antenna array. The millimeter-wave radiators 110 of the at least two millimeter-wave antennas are all connected to the second connection line and multiplexed as part of the second connection line.

[0040] For example, the non-millimeter-wave connection line 220 can connect at least two millimeter-wave radiators 110 in series to form the second connection line. In this way, at least two millimeter-wave radiators 110 and the plurality of non-millimeter-wave connection lines 220 can be used together as the feed line of the non-millimeter-wave radiator 210 to realize signal transmission between the non-millimeter-wave radiator 210 and the non-millimeter-wave signal processing chip 320.

[0041] Please refer to Figure 4 , Figure 4This is a second equivalent circuit diagram for non-millimeter-wave signal transmission in the antenna structure provided in this embodiment. Each millimeter-wave radiator 110 can be equivalent to a filter capacitor 111, and the non-millimeter-wave connection line 220 between two adjacent millimeter-wave radiators 110 can be equivalent to a filter inductor 221. The filter capacitor 111 and the filter inductor 221 together form a signal filtering circuit.

[0042] Based on the above design, the millimeter-wave radiator 110 is connected in series and multiplexed as the feed line of the non-millimeter-wave radiator 210 through the non-millimeter-wave connection line 220, so that the non-millimeter-wave connection line 220 and the millimeter-wave radiator 110 can form a filter circuit, thereby filtering the non-millimeter-wave signal during transmission.

[0043] In one possible implementation, the plurality of non-millimeter-wave interconnects 220 include at least two different linewidths. For example, see [reference needed]. Figure 5 In the plurality of non-millimeter-wave connection lines 220, the linewidth W1 of at least one non-millimeter-wave connection line 220 is not equal to the linewidth W2 of at least another non-millimeter-wave connection line 220. Thus, the non-millimeter-wave connection lines 220 with different linewidths can be equivalent to filter inductors with different inductance values, thereby enabling filtering of noise signals of different frequencies.

[0044] In one possible implementation, at least two of the millimeter-wave radiators 110 comprise at least two different antenna sizes. Thus, the millimeter-wave radiators 110 of different sizes can be equivalent to filter capacitors with different capacitance values, thereby enabling filtering of noise signals at different frequencies.

[0045] Furthermore, the first connection line (i.e., the millimeter-wave connection line 120) is connected to the millimeter-wave radiator 110 along a first direction, and at least two of the millimeter-wave radiators 110 are arranged along a second direction perpendicular to the first direction. Along the second direction, the at least two millimeter-wave radiators 110 have at least two different widths. For example, please refer to... Figure 6 In at least two of the millimeter-wave radiators 110, the width W3 of at least one millimeter-wave radiator 110 in the Y direction is not equal to the width W4 of at least another millimeter-wave radiator 110 in the Y direction. Thus, different signal amplitude weights can be applied to the millimeter-wave radiators 110, and for filtering non-millimeter-wave signals, noise signals of different frequencies can be filtered out.

[0046] It should be noted that, in this embodiment, the number of different line width models of the non-millimeter wave connecting line 220 and the number of different size models of the millimeter wave radiator 110 can be flexibly combined according to actual filtering requirements, so that the filtering circuit composed of the non-millimeter wave connecting line 220 and the millimeter wave radiator 110 can filter signal noise of multiple frequencies. No specific limitation is made in this embodiment.

[0047] In one possible implementation, the non-millimeter-wave radiator 210 may include one or more combinations of 2G signal antennas, 3G signal antennas, 4G signal antennas, and RFID signal antennas. The millimeter-wave radiator 110 may include a 5G signal antenna in the millimeter-wave band.

[0048] Based on the same inventive concept, this embodiment also provides a display panel, the display panel including a conductive line layer, the conductive line layer including the antenna structure provided in this embodiment.

[0049] In one possible implementation, the conductive circuit layer may have a grid-like conductive circuit structure, which may constitute the millimeter-wave radiator 110 and the non-millimeter-wave radiator 210. The conductive circuit layer may also have other circuit structures connected to the grid-like conductive circuit structure, which may constitute the millimeter-wave connection line 120 and the non-millimeter-wave connection line 220. For example, the conductive layer may be a metal circuit layer or an ITO circuit layer used to form the conductive circuit structure in the display panel.

[0050] In one possible implementation, the display panel includes a display module and a touch module, with the conductive circuit layer located in the touch module of the display panel. For example, the touch module has one or more touch circuit layers, each including a grid-like conductive circuit structure for forming touch-sensitive signals. This touch circuit layer can serve as the conductive circuit layer forming the millimeter-wave radiator 110 and the non-millimeter-wave radiator 210 in this embodiment.

[0051] In one possible implementation, since the millimeter-wave radiator 110 and the non-millimeter-wave radiator 210 can be composed of a grid-like conductive line structure in the conductive line layer, the millimeter-wave radiator 110 and the non-millimeter-wave radiator 210 can be disposed in the display area of ​​the display panel without affecting the display effect of the display area.

[0052] For example, please refer to Figure 7The display panel may include a display area 10 and a non-display area 20, wherein the non-display area 20 may be a border area surrounding the display area 10. At least a portion of the millimeter-wave radiator 110 and at least a portion of the non-millimeter-wave radiator 210 may be located in the display area 10. Furthermore, the millimeter-wave connection line 120 and the non-millimeter-wave connection line 220 may extend from the display area 10 to the non-display area 20, and then be electrically connected to the millimeter-wave signal processing chip 310 and the non-millimeter-wave signal processing chip 320 respectively disposed on the back of the display panel. Thus, by placing the millimeter-wave radiator 110 and the non-millimeter-wave radiator 210 in the display area 10, the area of ​​the non-display area 20 can be reduced, increasing the screen-to-body ratio of the display area 10.

[0053] This embodiment also provides an electronic device, which may include the display panel provided in this embodiment. The electronic device may be a mobile phone, tablet computer, smart wearable device, laptop computer, or other device with communication and display functions.

[0054] In summary, the antenna structure, display panel, and electronic device provided in this application, by multiplexing the millimeter-wave radiator as part of the second connection line, allow the second connection line to form a filtering circuit to filter non-millimeter-wave signals during transmission. Thus, for non-millimeter-wave signals, an additional filtering circuit is no longer needed, thereby improving the integration of the entire antenna structure and reducing its footprint.

[0055] Furthermore, by setting up non-millimeter-wave connection lines of different widths or millimeter-wave radiators of different sizes, signal noise of different frequencies can be filtered out for non-millimeter-wave signals, thereby improving the reception quality of millimeter-wave signals.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An antenna structure, characterized in that, The antenna structure includes: A millimeter-wave antenna includes a millimeter-wave radiator and a first connection line, the first connection line being used to connect the millimeter-wave radiator to a millimeter-wave signal processing chip; A non-millimeter-wave antenna includes a non-millimeter-wave radiator and a second connection line. The second connection line connects the non-millimeter-wave radiator to a non-millimeter-wave signal processing chip. The second connection line includes a non-millimeter-wave connecting line. The non-millimeter-wave connecting line and the millimeter-wave radiator together form the second connection line as a feed line for the non-millimeter-wave antenna. The millimeter-wave radiator is connected to the second connection line and multiplexed as a part of the second connection line. The millimeter-wave antenna radiator is equivalent to a filter capacitor on the second connection line, and the non-millimeter-wave connecting line is equivalent to a filter inductor on the second connection line.

2. The antenna structure according to claim 1, characterized in that, The millimeter-wave antenna is configured as at least two, and the at least two millimeter-wave antennas are arranged sequentially to form a millimeter-wave antenna array; The millimeter-wave radiators of at least two of the millimeter-wave antennas are connected to the second connection line and multiplexed as part of the second connection line.

3. The antenna structure according to claim 2, characterized in that, At least two of the millimeter-wave antennas are connected in series on the second connection line.

4. The antenna structure according to claim 2, characterized in that, The second connection line includes a non-millimeter-wave connection line disposed between adjacent millimeter-wave radiators, the non-millimeter-wave connection line including at least two different line widths.

5. The antenna structure according to claim 2, characterized in that, At least two of the millimeter-wave radiators include at least two different antenna sizes.

6. The antenna structure according to claim 5, characterized in that, The first connection line is connected to the millimeter-wave radiator along a first direction, and at least two millimeter-wave radiators are arranged along a second direction perpendicular to the first direction; along the second direction, at least two millimeter-wave radiators have at least two different widths.

7. A display panel, characterized in that, The display panel includes a conductive line layer, and the conductive line layer includes the antenna structure according to any one of claims 1-6.

8. The display panel according to claim 7, characterized in that, The display panel includes a display area and a non-display area, with at least a portion of the millimeter-wave radiator and at least a portion of the non-millimeter-wave radiator located in the display area.

9. The display panel according to claim 7, characterized in that, The conductive circuit layer is configured as a touch electrode layer.

10. An electronic device, characterized in that, The electronic device includes the display panel as described in any one of claims 7-9.

Images