WO2022062632A1 - 一种交互平板 - Google Patents

一种交互平板 Download PDF

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Publication number
WO2022062632A1
WO2022062632A1 PCT/CN2021/108601 CN2021108601W WO2022062632A1 WO 2022062632 A1 WO2022062632 A1 WO 2022062632A1 CN 2021108601 W CN2021108601 W CN 2021108601W WO 2022062632 A1 WO2022062632 A1 WO 2022062632A1
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WO
WIPO (PCT)
Prior art keywords
branch
boundary
antenna assembly
metal
antenna
Prior art date
Application number
PCT/CN2021/108601
Other languages
English (en)
French (fr)
Inventor
邓冰洁
洪国锋
陈彦熙
Original Assignee
广州视源电子科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州视源电子科技股份有限公司 filed Critical 广州视源电子科技股份有限公司
Priority to AU2021348017A priority Critical patent/AU2021348017B2/en
Priority to JP2022571137A priority patent/JP2023525924A/ja
Priority to KR1020227041514A priority patent/KR20230003099A/ko
Priority to CN202180005973.2A priority patent/CN114586235A/zh
Priority to EP21871010.1A priority patent/EP4145627A4/en
Publication of WO2022062632A1 publication Critical patent/WO2022062632A1/zh
Priority to US17/992,850 priority patent/US20230091189A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface

Definitions

  • the embodiments of the present application relate to the field of antenna technologies, and in particular, to an interactive tablet.
  • the interactive tablet needs an antenna to radiate and receive electromagnetic signals to realize the wireless communication function.
  • the display screen 1' is surrounded by a frame 2', and the back of the display screen 1' is a metal backplane.
  • the connection with the frame 2' makes the display screen 1', the frame 2' and the metal backplane connected as a whole.
  • the antenna 3' is arranged inside the interactive tablet and is located in the area of the frame 2'.
  • the antenna requires a certain clearance area, resulting in an increase in the area of the frame, and it is impossible to realize the design of a narrow frame or even a full screen of an interactive flat panel.
  • the purpose of the embodiments of the present application is to provide an interactive tablet to solve the problem that the antenna design on the frame of the existing interactive tablet makes the interactive tablet unable to use a metal frame, and the interactive tablet cannot be designed with a narrow frame or even a full screen.
  • An interactive tablet including:
  • the metal backplane is located on the back of the display screen, and the metal backplane is provided with through holes;
  • the antenna assembly is disposed on the side of the metal backplane facing away from the display screen, and is located in the display area of the display screen, and the antenna assembly is disposed opposite to the through hole;
  • a mainboard which is disposed on the side of the metal backplane facing away from the display screen, and is electrically connected to the antenna assembly.
  • the interactive tablet of the embodiment of the present application includes a display screen, a metal backplane, an antenna assembly, and a main board, wherein the metal backplane is located behind the display screen and is provided with through holes on the metal backplane, and the antenna assembly is provided on the metal backplane facing away from the display screen.
  • the side of the metal backplane is located in the display area of the display screen, the antenna assembly is arranged opposite to the through hole, the mainboard is arranged on the side of the metal backplane facing away from the display screen, and the antenna assembly is electrically connected to the mainboard.
  • the antenna assembly is arranged in the display area of the display screen, and can radiate signals forward through the through holes on the metal back panel and the display screen, without occupying the frame area of the interactive panel, and the frame can be made narrower , which improves the screen ratio of the interactive tablet and even realizes a full-screen design.
  • FIG. 1 is a schematic diagram of an antenna layout of an interactive flat panel in the prior art
  • FIG. 2 is a schematic position diagram of an antenna assembly of an interactive tablet according to an embodiment of the present application
  • FIG. 3 is an exploded schematic diagram of an interactive tablet in an embodiment of the present application.
  • Fig. 4 is the schematic diagram of part A in Fig. 3;
  • FIG. 5 is a schematic diagram of an antenna assembly disassembled from an interactive flat panel according to an embodiment of the present application
  • Fig. 6 is the schematic diagram of part B in Fig. 5;
  • FIG. 7 is a schematic diagram of exposing a backlight layer after decomposing the metal back plate in an embodiment of the present application
  • FIG. 8 is a schematic diagram of the relative positions of the through hole and the light bar in the embodiment of the present application.
  • FIG. 9 is a schematic diagram of the interactive flat panel after disassembling the metal back cover according to the embodiment of the application.
  • FIG. 10 is a schematic diagram of setting decorations on an interactive tablet in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of decomposing decorative parts from an interactive flat panel according to an embodiment of the application.
  • FIG. 12 is a schematic diagram of an antenna assembly according to an embodiment of the present application.
  • FIG. 13 is a schematic diagram of through holes and sprouting of the metal back plate in the embodiment of the application.
  • FIG. 14 is a schematic diagram of a convex hull of a metal backplane in an embodiment of the present application.
  • 15-16 are schematic diagrams of the shielding cover of the antenna assembly in the embodiment of the application.
  • 17-22 are schematic diagrams of an antenna unit of an antenna assembly in an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • connection may be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between the two elements.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • an embodiment of the present application provides an interactive tablet, which includes a display screen 1 , a metal backplane 2 , an antenna assembly 3 , and a mainboard (not shown).
  • the interactive tablet in the embodiment of the present application may be an electronic device with functions such as writing, annotation, painting, multimedia entertainment, and network conference. It can be used in office, teaching, interactive presentation of pictures and texts, etc.
  • the interactive tablet can also include a frame 4, the display screen 1 is embedded in the frame 4, and the metal back plate 2 is located on the back of the display screen 1. After the metal back plate 2 is mechanically connected with the frame 4, the display screen 1 and the frame 4 are connected together. And the metal backplane 2 is connected as a whole.
  • the interactive tablet may also include components such as a speaker and a heat sink.
  • the display screen 1 may be a touch display screen, that is, the display screen 1 may include a backlight layer 12 , a display layer 11 and a touch layer (not shown), and the backlight layer 12 may provide a light source required for display
  • the display layer 11 may be a liquid crystal display layer
  • the touch layer may be a capacitive touch layer, an infrared touch layer, or the like.
  • the metal back plate 2 may be a component located on the back of the display screen 1 for supporting and protecting the display screen 1.
  • the metal back plate 2 can be cut and stamped from a steel plate to have a specific structure, so that the The metal backplane 2 can be connected to the frame 4 and a certain space is provided between the metal backplane 2 and the display screen 1 to accommodate components such as speakers and heat sinks.
  • the antenna assembly 3 can be an assembly for radiating and receiving wireless signals, the main board is disposed on the side of the metal backplane 2 facing away from the display screen 1, and the antenna assembly 3 is electrically connected to the main board.
  • the antenna assembly 3 can pass through a signal transmission line. It is electrically connected to the main board.
  • the antenna assembly 3 can be an antenna assembly such as WiFi, wireless access point, Bluetooth, etc.
  • the antenna assembly 3 can be a WiFi antenna assembly, then the first radiation of the antenna assembly 3
  • the frequency band is the WiFi 2.4G (2.4Ghz ⁇ 2.5GHz) frequency band
  • the second radiation frequency band is the WiFi 5G frequency band.
  • the 2.4G frequency band has strong anti-attenuation ability in indoor environment, good ability to penetrate walls, and 5G (4.9GHz ⁇ 5.9GHz) frequency band anti-interference Strong capability, can provide larger bandwidth, high throughput and high scalability.
  • the metal backplane 2 is located on the back of the display screen 1 , the metal backplane 2 is provided with through holes 21 , and the antenna assembly 3 is provided on the metal backplane 2 facing away from the display screen. 1 side, and is located in the display area of the display screen 1, the antenna assembly 3 and the through-hole 21 are arranged directly opposite.
  • the fact that the antenna assembly 3 is located in the display area of the display screen 1 may refer to: the projection of the antenna assembly 3 on the display screen 1 is in the display area of the display screen 1; the through hole 21 may refer to the metal backplane 2
  • the round holes, square holes or other special-shaped holes passing through the metal back plate 2, the shape of the through holes 21 can be set according to the antenna assembly 3;
  • the unit is disposed opposite to the through hole 21 , so that the wireless signal radiated by the antenna unit can pass through the through hole 21 and then penetrate the display screen 1 and radiate to the front of the display screen 1 .
  • the interactive tablet of the embodiment of the present application includes a display screen, a metal backplane, an antenna assembly, and a main board, wherein the metal backplane is located behind the display screen and is provided with through holes on the metal backplane, and the antenna assembly is provided on the metal backplane facing away from the display screen.
  • the side of the metal backplane is located in the display area of the display screen, the antenna assembly is arranged opposite to the through hole, the mainboard is arranged on the side of the metal backplane facing away from the display screen, and the antenna assembly is electrically connected to the mainboard.
  • the antenna assembly is arranged in the display area of the display screen, and can radiate signals forward through the through holes on the metal back panel and the display screen, without occupying the frame area of the interactive panel, and the frame can be made narrower , which improves the screen ratio of the interactive tablet and even realizes a full-screen design.
  • the antenna assembly is located in the display area of the display screen and does not occupy the frame area of the interactive tablet.
  • the interactive tablet can use a metal frame, so that the metal frame can improve the structural strength of the interactive tablet and have a good appearance.
  • the interactive tablet does not need to set an antenna on the frame, which avoids the problem that the interactive tablet is embedded in the wall, causing the antenna located in the frame to be blocked by the wall, resulting in signal weakening.
  • the antenna assembly is outside the shielding range of the wall, so the radiation capability of the antenna assembly is not affected.
  • the backlight layer 12 of the display screen 1 of the embodiment of the present application may include a plurality of light bars 121 to set a regular array, and the light bars 121 emit light after being powered on to provide the display layer 11
  • the required backlight in one example, the light bar 121 may be a light bar composed of a plurality of LED lights, preferably, the light bar 121 may be composed of a plurality of light emitting diodes.
  • the plurality of light bars 121 are arranged at intervals in the horizontal direction. Of course, the plurality of light bars 121 may also be arranged at intervals in the vertical direction, or in the horizontal and vertical directions.
  • the light bars 121 are arranged at intervals in the horizontal direction as an example, the projection of the through holes 21 of the metal back plate 2 in the backlight layer 12 is between the two light bars 121 , so that the radiation radiated by the antenna assembly 3 is Wireless signals can propagate from between the two light bars 121 to the display layer 11 of the display screen 1 , which can prevent the light bars 121 from interfering with the wireless signals radiated by the antenna assembly 3 and improve the anti-interference ability of the antenna assembly 3 .
  • the interactive tablet further includes a metal back cover 5
  • the main board 6 is disposed on the side of the metal back board 2 facing away from the display screen 1
  • the metal back cover 5 is connected with the back cover 5 .
  • the metal backplane 2 is connected to and covers the main board 6 .
  • the metal back cover 5 is connected with the metal back plate 2 to form an accommodating cavity
  • the main board 6 is located in the accommodating cavity and is mechanically connected with the metal back board 2.
  • the main board 6 and the metal back board 2 are connected by screws
  • the main board 6 is arranged on the side of the metal backplane 2 facing away from the display screen 1, and the main board 6 and the display screen 1 are isolated by the metal backplane 2, which can prevent the main board 6 and the display screen 1 from interfering with each other.
  • the back cover 5 covers the main board 6, which can not only protect the main board 6 from physical impact, dust and water, but also prevent the main board 6 from being subjected to electromagnetic interference.
  • the antenna assembly 3 when the interactive tablet is provided with a metal back cover 5, the antenna assembly 3 is located outside the area covered by the metal back cover 5. It should be noted that the antenna assembly 3 may be Any position outside the area covered by the metal back cover 5 is not limited in the embodiment of the present application on the position of the antenna assembly 3 on the metal back plate 2 .
  • the antenna assembly 3 is arranged outside the area covered by the metal back cover 5, and the metal back cover 5 isolates the motherboard 6 and the antenna assembly 3, which can avoid mutual electromagnetic interference between the motherboard 6 and the antenna assembly 3, and the antenna assembly 3 has good anti-interference ability. , the radiation performance of the antenna assembly 3 is improved.
  • the interactive flat panel may further include a decorative piece 7 , the decorative piece 7 is connected to the metal back plate 2 and covers the antenna assembly 3 , in one example, the decorative element 7 can be detachably connected with the metal backplane 2, for example, the decorative element 7 can be mechanically connected to the metal backplane 2 by means of snaps, screws, etc., to cover the antenna assembly 3, which can avoid the antenna
  • the external leakage of component 3 affects the overall appearance of the interactive tablet, and can also protect the antenna component 3 from physical impact, dust, and water.
  • the material of the decorative piece 7 can be metal, for example, the material of the decorative piece 7 can be made of aluminum, copper, iron, etc., so that the decorative piece 7 made of metal can be used as a shield to avoid the antenna assembly 3
  • the anti-interference performance of the antenna assembly 3 is improved due to electromagnetic interference in the direction behind the metal backplane 2 .
  • the material of the decorative piece 7 can also be a non-metallic material.
  • a spray paint layer is provided on the metal back plate 2 except for the area covered by the antenna assembly 3. More preferably, the decorative piece 7 leaks outside. The surface is also provided with a spray paint layer of the same color.
  • the setting of the spray paint layer can prevent the metal back plate 2 from being rusted due to chemical reactions such as oxidation. Bare, interactive flat panel machine has a good appearance.
  • the antenna assembly 3 may also be located in the area covered by the metal back cover 5 .
  • an accommodation cavity is formed between the metal back cover 5 and the metal back plate 2 , the antenna assembly 3 is arranged in the accommodating cavity and is connected with the metal back plate 2, which is the same as that the antenna assembly 3 is arranged outside the area covered by the metal back cover 5, and the position of the metal back plate 2 facing the antenna assembly 3 is also provided with a pass-through hole.
  • the antenna assembly 3 is arranged in the area covered by the metal back cover 5 , and the antenna assembly 3 does not leak on the outer surface of the interactive flat panel, and an additional decorative member 7 is wirelessly added to cover the leaked antenna assembly 3 .
  • the number of antenna assemblies 3 may be two or more, for example, may include a first antenna assembly and a second antenna assembly, wherein the first antenna assembly is located at In the area covered by the metal back cover 5, the second antenna component is located outside the area covered by the metal back cover 5.
  • the first antenna component may be an AP (wireless access point, Access Point) antenna component
  • the second antenna component is located outside the area covered by the metal back cover 5.
  • the antenna assembly may be a WiFi antenna assembly.
  • the AP (wireless access point, Access Point) antenna assembly is used for the wireless switch of the wireless network, and is also the core of the wireless network.
  • the wireless AP is the access point for the interactive tablet to enter the wired network, mainly used in broadband homes, inside buildings and Inside the campus, wireless APs can cover a radiation range of tens of meters to hundreds of meters.
  • the AP antenna assembly is mainly used to communicate with wireless devices such as screen transmitters in front of the interactive tablet, and only needs to have the function of forward radiation.
  • the first antenna assembly is disposed in the area covered by the metal back cover 5, and the second antenna assembly is disposed outside the area covered by the metal back cover 5.
  • the metal back cover 5 isolates the two antenna assemblies. The isolation of the antenna components is good, and the wireless signals do not interfere with each other.
  • the two antenna assemblies 3 can also be arranged outside the area covered by the metal back cover 5 , or the two antenna assemblies 3 can be arranged within the area covered by the metal back cover 5 .
  • the antenna assembly 3 is arranged inside the metal back cover 5 or outside the metal back cover 5 .
  • connection mode of the antenna assembly 3 and the metal back plate 2 is exemplified below with reference to the accompanying drawings.
  • the antenna assembly 3 includes a dielectric substrate 31 and an antenna unit 32 disposed on the dielectric substrate 31 .
  • the antenna assembly 3 is connected to the metal backplane 2 through the dielectric substrate 31 , and the antenna unit 32 It is disposed opposite to the through hole 21.
  • the dielectric substrate 31 may be a PCB substrate or other substrates, and the dielectric substrate 31 and the metal backplane 2 are detachably connected.
  • the dielectric substrate 31 and the metal backplane 2 can be snapped together. , screw locking, etc., mechanically connected, or bonded by double-sided tape.
  • the antenna assembly 3 in the embodiment of the present application is detachably connected to the metal backplane 2 , which can facilitate disassembly of the antenna assembly 3 and facilitate maintenance and replacement of the antenna assembly 3 of the interactive tablet.
  • the medium substrate 31 is provided with a locking hole 311
  • the metal back plate 2 is provided with a sprout 22 matching the locking hole 311
  • the sprout 22 is provided with an internal thread
  • the buds 22 are embedded in the locking holes 311 to connect the dielectric substrate 31 and the metal backplane 2 by screws.
  • the buds 22 can be formed on the metal backplane 2 by a stamping process.
  • the cylindrical structure with a certain height, Threads can be formed by tapping in the cylindrical structure.
  • the height of the sprouts 22 is generally less than the thickness of the medium substrate 31, so that after the screw is locked into the locking hole, the nut of the screw can press against the medium substrate 31, so as to remove the medium.
  • the base plate 31 is fixed on the metal back plate 2 .
  • the buds 22 are provided on the metal backplane 2 to be mechanically connected to the dielectric substrate 31, and the buds 22 are embedded in the locking holes 311 of the dielectric substrate 31, which can facilitate the positioning of the dielectric substrate 31 and can be quickly assembled on the interactive flat panel Antenna assembly 3.
  • a conductor is also provided between the dielectric substrate 31 and the metal backplane 2.
  • the conductor 2 may be an elastic conductor, such as one of conductive foam, conductive cloth, conductive paint, and metal dome. kind.
  • a conductive foam can be provided between the dielectric substrate 31 and the metal backplane 2, and the conductive foam is around the dielectric substrate 31 to improve the surrounding area of the side of the dielectric substrate 31 facing the metal backplane 2.
  • the electrical connection performance between the exposed copper and the metal backplane 2 makes the antenna assembly 3 have good grounding performance and anti-interference performance.
  • a plurality of convex hulls 23 are provided on the side of the metal back plate 2 facing away from the display screen 1 , the convex hulls 23 are provided with internal threads, and the dielectric substrate 31 is located on the convex hull. 23 , the dielectric substrate 31 and the convex hull 23 are connected by screws, so as to realize the detachable connection between the antenna assembly 3 and the metal back plate 2 . Further, a conductor is disposed between the dielectric substrate 31 and the metal backplane 2 , and the conductor is around the dielectric substrate 311 .
  • the convex hull 23 in the embodiment of the present application has a certain height
  • the dielectric substrate 31 is disposed on the convex hull 23, and there is a certain distance between the dielectric substrate 31 and the metal backplane 2, so that the side of the dielectric substrate 31 and the metal backplane 2 facing each other Electronic components can be arranged.
  • the antenna assembly 3 further includes a first metal shield 35 , and the first metal shield 35 covers the dielectric substrate 31 .
  • the first metal shield 35 may be mechanically connected to the dielectric substrate 31 . and electrical connection, for example, the first metal shield 35 and the dielectric substrate 31 are mechanically and electrically connected through soldering, metal clips, etc., and the first metal shield 35 can protect the entire antenna assembly 3 from electromagnetic interference, The anti-interference ability of the antenna assembly 3 is improved.
  • a first metal shielding cover 35 needs to be added to the antenna assembly 3 to prevent the main board 6 in the metal back cover 5 from causing electromagnetic waves to the antenna assembly 3 interference.
  • the first metal shield 35 may not be added to the antenna assembly 3, Alternatively, a metal decorative element 7 is used as the shielding cover.
  • the number of antenna units 32 on the antenna assembly 3 is two or more, and the antenna assembly 3 may further include a second metal shield 34, each Each of the antenna units 32 is covered by a second metal shield 34 , that is, each antenna unit 32 is provided with a second metal shield 34 , so that the isolation between the antenna units 32 can be improved, and the safety of the antenna assembly 3 can be improved.
  • the distance from the antenna unit 32 to the bottom of the second metal shield 34 is an integer multiple of a quarter wavelength of the electromagnetic wave radiated by the antenna unit 32, so that the forward radiation capability of the antenna unit 32 can be improved , increasing the radiation distance of the antenna unit 32 .
  • a radio frequency chip 33 is further provided on the dielectric substrate 31 of the antenna assembly 3 , and the antenna unit 32 passes through the dielectric substrate 31
  • the signal transmission line is electrically connected to the radio frequency chip 33.
  • the radio frequency chip 33 and the antenna unit 32 are located on the same side of the dielectric substrate 31, so that the overall thickness of the antenna assembly 3 is smaller.
  • the radio frequency chip 33 and the antenna unit 32 are located on different sides of the dielectric substrate 31, so that both sides of the dielectric substrate 31 can be fully utilized and the overall area of the dielectric substrate can be reduced.
  • the antenna assembly 3 in this embodiment of the present application may include a first antenna unit 321 and a second antenna unit 322 .
  • the first antenna unit 321 and the second antenna unit 322 are located on two sides of the radio frequency chip 33 respectively, and are respectively The radio frequency chip is electrically connected through the first signal transmission line 36 and the second signal transmission line 40 . Disposing the first antenna unit 321 and the second antenna unit 322 on both sides of the RF chip 33 can increase the distance between the first antenna unit 321 and the second antenna unit 322, and increase the distance between the first antenna unit 321 and the second antenna unit 322 isolation between.
  • the dielectric substrate 31 is provided with a first square clearance area 38 and a second square clearance area 39 on both sides of the radio frequency chip 33 and on the copper surface 37 , and the first antenna unit 321 is located on the first side.
  • the second antenna unit 322 is located in the second square clearance area 39 .
  • the first antenna unit 321 includes a first feeding branch 3211 , a first L-shaped branch 3212 , a first T-shaped branch 3213 , and a first ground branch 3214 .
  • the first feeding branch 3211 extends from the first boundary 3215 to the first square clearance area 38 and is perpendicular to the first boundary 3215 , and the junction between the first feeding branch 3211 and the first boundary 3215 is connected to the first signal
  • the transmission line 36 is connected, and the first boundary 3215 is a vertical boundary close to the radio frequency chip 33 .
  • the first L-shaped branch 3212 , the first T-shaped branch 3213 and the first ground branch 3214 are located on the side of the first feeding branch 3211 away from the second boundary 3216 , and the second boundary 3216 is adjacent to the first boundary 3215 and is vertical
  • the first L-shaped branch 3212 includes a first branch 32121 and a second branch 32122, the first branch 32121 is connected with the first feeding branch 3211, and the connection point is located between the two ends of the first feeding branch 3211 , the first branch 32121 and the first feeding branch 3211 form an obtuse angle, and the first right angle A formed by the first branch 32121 and the second branch 32122 faces the first boundary 3215 .
  • the first T-shaped branch 3213 includes a third branch 32131 and a fourth branch 32132.
  • the third branch 32131 is located on the side of the first branch 32121 away from the first boundary 3215, and is arranged parallel to the first branch 32121 and spaced apart.
  • the fourth branch 32132 is located on the side of the second branch 32122 away from the first feeding branch 3211, and is arranged in parallel with the second branch 32122.
  • the fourth branch 32132 extends to the third boundary 3217 to connect the copper surface 37, and the third boundary 3217 is a boundary parallel to the second boundary 3216.
  • the first ground branch 3214 includes a fifth branch 32141 and a sixth branch 32142.
  • the fifth branch 32141 extends from the first boundary 3215 into the first square clearance area 38 and is parallel to the first feeding branch 3211.
  • the sixth branch 32142 is The first branches 32121 are arranged in parallel and spaced apart.
  • the second antenna unit 322 includes a second feed branch 3221 , a second L-shaped branch 3222 , a second T-shaped branch 3223 , and a second ground branch 3224 .
  • the second feeding stub 3221 and the first feeding stub 3211 are mirror images of the center line OO of the RF chip 33 , the second feeding stub 3221 is connected to the second signal transmission line 40 , and the second T-shaped stub 3223 is connected to the first
  • the T-shaped branch 3213 is arranged in a mirror image with the center line OO of the RF chip 33
  • the second ground branch 3224 and the first ground branch 3214 are arranged in a mirror image with the center line OO of the RF chip 33 .
  • the second L-shaped branch 3222 includes a seventh branch 32221 and an eighth branch 32222.
  • the seventh branch 32221 is connected to the second feeding branch 3221, and the connection point is located at one end of the second feeding branch 3221 away from the fourth boundary 3225.
  • the branch 32221 and the second feeding branch 3221 form an obtuse angle, the second right angle B formed by the seventh branch 32221 and the eighth branch 32222 faces the fourth boundary 3225 , and the fourth boundary 3225 is close to the RF chip in the second square clearance area 39 33 vertical boundaries.
  • the structure of the second antenna unit 322 may be the same as that of the first antenna unit 321, and the first antenna unit 321 and the second antenna unit 322 use radio frequency
  • the center line OO of the chip 33 is set as a mirror image in the center.
  • the antenna assembly 3 includes a first antenna unit 321 and a second antenna unit disposed on the dielectric substrate 31 . 322 , the first antenna unit 321 and the second antenna unit 322 are arranged in a mirror image with the center line OO of the radio frequency chip 33 as the center.
  • FIG. 22 is a schematic structural diagram of the first antenna unit 321 .
  • the first antenna unit 321 includes a first feeding branch 3211 , a first L-shaped branch 3212 and an L-shaped ground branch 3218 .
  • the first feeding branch 3211 extends from the first boundary 3215 into the first square clearance area 38 and is perpendicular to the first boundary 3215 , and the junction of the first feeding branch 3211 and the first boundary 3215 is connected to the first signal transmission line 36 , the first boundary 3215 is a vertical boundary close to the radio frequency chip 33 .
  • the first L-shaped branch 3212 and the L-shaped ground branch 3218 are located on the side of the first feeding branch 3211 close to the second boundary 3216.
  • the first L-shaped branch 3212 includes a first branch 32121 and a second branch 32122.
  • the first branch 3212 32121 is connected to the first feeding branch 3211, and the connection point is located at the end of the first feeding branch 3211 away from the first boundary 3215.
  • the first branch 32121 and the first feeding branch 3211 form an obtuse angle.
  • the first branch 32121 and The first right angle A formed by the second branch 32122 faces the first border 3215 , and the second border 3216 is a vertical border adjacent to the first border 3215 .
  • the L-shaped grounding branch 3218 includes a ninth branch 32181 and a tenth branch 32182.
  • the ninth branch 32181 is located on the side of the first branch 32121 away from the first boundary 3215, and is arranged parallel to the first branch 32121 and spaced apart.
  • the tenth branch 32182 is located on the side of the second branch 32122 away from the first feeding branch 3211 and is parallel and spaced apart from the second branch 32122 .
  • first antenna unit 321 and the second antenna unit 322 in the antenna assembly 3 of the embodiment of the present application have been described above with reference to FIGS. 17 to 21 . In practical applications, those skilled in the art may also set antenna units of other structures. In addition, the structures of the first antenna unit 321 and the second antenna unit 322 may be the same or different, and the structures of the first antenna unit 321 and the second antenna unit 322 are not limited in this embodiment of the present application.
  • the interactive tablet of the embodiment of the present application includes a display screen, a metal backplane, an antenna assembly, and a main board, wherein the metal backplane is located behind the display screen and is provided with through holes on the metal backplane, and the antenna assembly is provided on the metal backplane facing away from the display screen.
  • the side of the metal backplane is located in the display area of the display screen, the antenna assembly is arranged opposite to the through hole, the main board is arranged on the side of the metal backplane facing away from the display screen, and the antenna assembly is electrically connected to the main board.
  • the antenna assembly is arranged in the display area of the display screen, and can radiate signals forward through the through holes on the metal back panel and the display screen, without occupying the frame area of the interactive panel, and the frame can be made narrower , which improves the screen ratio of the interactive tablet and even realizes a full-screen design.

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Abstract

本申请实施例公开了一种交互平板，包括显示屏、金属背板、天线组件和主板，其中，金属背板位于显示屏后方并且金属背板上设置有通孔，天线组件设置在金属背板背向显示屏的一面，并且位于显示屏的显示区域内，天线组件与通孔正对设置，主板位于金属背板背向显示屏的一面，天线组件与主板电连接。在本申请实施例中，天线组件设置在显示屏的显示区域内，可透过金属背板上的通孔、显示屏向前辐射信号，不占用交互平板的边框区域，边框可以做得更窄，提高了交互平板的屏占比甚至实现全面屏设计。

Description

一种交互平板
本申请要求在2020年9月22日提交中国专利局、申请号为202022089665.8的中国专利申请的优选权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及天线技术领域，尤其涉及一种交互平板。
背景技术
随着科技和通信技术的发展，交互平板的屏幕占比要求越来越高，发展趋势也逐渐向全面屏靠拢。
交互平板实现无线通信功能需要天线来辐射和接收电磁信号，如图1所示，在交互平板中，显示屏1＇四周为边框2＇，显示屏1＇的背面是金属背板，金属背板与边框2＇连接使得显示屏1＇、边框2＇、金属背板连接为一体。目前，在交互平板中，天线3＇设置在交互平板内部且位于边框2＇的区域内。
上述天线的设置方式，天线需要一定的净空区域，导致边框的面积增大，无法实现交互平板窄边框甚至全面屏设计。
发明内容
本申请实施例的目的在于：提供一种交互平板，以解决现有交互平板中天线设计在边框上造成交互平板无法使用金属边框，以及无法实现交互平板窄边框甚至全面屏设计的问题。
为达此目的，本申请实施例采用以下技术方案：
提供一种交互平板，包括：
显示屏；
金属背板，所述金属背板位于所述显示屏的背面，所述金属背板上设置有通孔；
天线组件，所述天线组件设置在所述金属背板背向所述显示屏的一面，并且位于所述显示屏的显示区域内，所述天线组件与所述通孔正对设置；
主板，所述主板设置于所述金属背板背向所述显示屏的一面，所述主板与所述天线组件电连接。
本申请实施例的交互平板包括显示屏、金属背板、天线组件和主板，其中，金属背板位于显示屏后方并且金属背板上设置有通孔，天线组件设置在金属背板背向显示屏的一面，并且位于显示屏的显示区域内，天线组件与通孔正对设置，主板设置于金属背板背向显示屏的一面，天线组件与主板电连接。在本申请实施例中，天线组件设置在显示屏的显示区域内，可透过金属背板上的通孔、显示屏向前辐射信号，不占用交互平板的边框区域，边框可以做得更窄，提高了交互平板的屏占比甚至实现全面屏设计。
附图说明
下面根据附图和实施例对本申请作进一步详细说明。
图1为现有技术中交互平板的天线布局示意图；
图2为本申请实施例的交互平板的天线组件的位置示意图；
图3为本申请实施例中交互平板的分解示意图；
图4为图3中局部A的示意图；
图5为本申请实施例中交互平板分解出天线组件的示意图；
图6为图5中局部B的示意图；
图7为本申请实施例中分解金属背板后暴露背光层的示意图；
图8为本申请实施例中通孔和灯条的相对位置示意图；
图9为本申请实施例中交互平板分解金属后盖后的示意图；
图10为本申请实施例中交互平板设置装饰件的示意图；
图11为本申请实施例中交互平板分解出装饰件的示意图；
图12为本申请实施例的天线组件的示意图；
图13为本申请实施例中金属背板的通孔和抽芽的示意图；
图14为本申请实施例中金属背板的凸包的示意图；
图15-图16为本申请实施例中天线组件的屏蔽罩的示意图；
图17-图22为本申请实施例中天线组件的天线单元的示意图。
图中：
1、显示屏；11、显示层；12、背光层；121、灯条；2、金属背板；21、通孔；22、抽芽；23、凸包；3、天线组件；31、介质基板；311、锁附孔；32、天线单元；321、第一天线单元；3211、第一馈电枝节；3212、第一L形枝节；32121、第一枝节；32122、第二枝节；3213、第一T形枝节；32131、第三枝节；32132、第四枝节；3214、第一接地枝节；32141、第五枝节；32142、第六枝节；3215、第一边界；3216、第二边界；3217、第三边界；3218、L形接地枝节；32181、第九枝节；32182、第十枝节；322、第二天线单元；3221、第二馈电枝节；3222、第二L形枝节；32221、第七枝节；32222、第八枝节；3223、第二T形枝节；3224、第二接地枝节；3225、第四边界；33、射频芯片；34、第二金属屏蔽罩；35、第一金属屏蔽罩；36、第一信号传输线；37、铺铜面；38、第一方形净空区域；39、第二方形净空区域；40、第二信号传输线；4、边框；5、金属后盖；6、主板；7、装饰件。
具体实施方式
为使本申请解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本申请实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
如图2-图6所示，本申请实施例提供一种交互平板，该交互平板包括显示屏1、金属背板2、天线组件3以及主板(图未示出)。
本申请实施例的交互平板可以是具备书写、批注、绘画、多媒体娱乐以及网络会议等功能的电子设备，交互平板可以融入人机交互、平板显示、多媒体信息处理和网络传输等多项技术，可以应用于办公、教学、图文互动演示等场 景。
如图3所示，交互平板还可以包括边框4，显示屏1嵌入边框4中，金属背板2位于显示屏1的背面，金属背板2与边框4机械连接后将显示屏1、边框4以及金属背板2连接为一体，当然，交互平板还可以包括扬声器、散热装置等部件。
在本申请实施例中，显示屏1可以是触摸显示屏，即显示屏1可以包括背光层12、显示层11以及触摸层(图未示)，背光层12可以是提供显示所需的光源的物理层，显示层11可以是液晶显示层，触摸层可以是电容触摸层、红外触摸层等。
金属背板2可以是位于显示屏1的背面用于支持、保护显示屏1的部件，在一个可选实施例中，金属背板2可以通过钢板经过裁切、冲压后具备特定的结构，使得金属背板2可以与边框4连接并且金属背板2与显示屏1之间具备一定的空间以容纳扬声器、散热装置等部件。
天线组件3可以是用于辐射和接收无线信号的组件，主板设置于金属背板2背向显示屏1的一面，该天线组件3与主板电连接，示例性地，天线组件3可以通过信号传输线与主板电连接，在一个可选实施例中，天线组件3可以是WiFi、无线接入点、蓝牙等天线组件，优选地，天线组件3可以是WiFi天线组件，则天线组件3的第一辐射频段为WiFi 2.4G(2.4Ghz～2.5GHz)频段，第二辐射频段为WiFi 5G频段，2.4G频段室内环境中抗衰减能力强，穿墙能力良好，5G(4.9GHz～5.9GHz)频段抗干扰能力强，能提供更大的带宽，吞吐率高，扩展性高。
如图5图6所示，在本申请实施例中，金属背板2位于显示屏1的背面，金属背板2上设置有通孔21，天线组件3设置在金属背板2背向显示屏1的一 面，并且位于显示屏1的显示区域内，天线组件3与通孔21正对设置。需要说明的是，天线组件3位于显示屏1的显示区域内可以是指：天线组件3在显示屏1中的投影在显示屏1的显示区域内；通孔21可以是指金属背板2上贯穿金属背板2的圆孔、方孔或者其他异形孔等，通孔21的形状可以根据天线组件3来设置；天线组件3与通孔21正对设置可以是指：天线组件3上的天线单元与通孔21正对设置，以使得天线单元辐射的无线信号可以透过通孔21后，穿透显示屏1向显示屏1的正前方辐射。
本申请实施例的交互平板包括显示屏、金属背板、天线组件和主板，其中，金属背板位于显示屏后方并且金属背板上设置有通孔，天线组件设置在金属背板背向显示屏的一面，并且位于显示屏的显示区域内，天线组件与通孔正对设置，主板设置于金属背板背向显示屏的一面，天线组件与主板电连接。在本申请实施例中，天线组件设置在显示屏的显示区域内，可透过金属背板上的通孔、显示屏向前辐射信号，不占用交互平板的边框区域，边框可以做得更窄，提高了交互平板的屏占比甚至实现全面屏设计。
进一步地，天线组件位于显示屏的显示区域内，不占用交互平板的边框区域，交互平板可以使用金属边框，从而通过金属边框既可以提高交互平板的结构强度，又具有良好的外观。
进一步地，交互平板无需在边框设置天线，避免了交互平板嵌入墙体造成位于边框的天线被墙体遮挡造成信号减弱的问题，本实施例交互平板中天线组件位于显示屏的显示区域内，交互平板嵌入墙体时天线组件在墙体的遮挡范围外，因此天线组件的辐射能力不受影响。
如图3、图7以及图8所示，本申请实施例的显示屏1的背光层12可以包括多条以设定规律阵列的灯条121，该灯条121通电后发光以提供显示层11所 需要的背光，在一个示例中，灯条121可以是由多个LED灯所组成的灯条，优选地，灯条121可以由多个发光二极管组成。如图7和图8所示，在一个示例中，多个灯条121在水平方向上间隔设置，当然，多个灯条121也可以在竖直方向上间隔设置，或者水平方向和竖直方向上呈栅格状设置。如图8所示，以灯条121在水平方向上间隔设置作为示例，金属背板2的通孔21在背光层12中的投影在两个灯条121之间，使得天线组件3所辐射的无线信号可以从两个灯条121之间向显示屏1的显示层11传播，可以避免灯条121对天线组件3辐射的无线信号造成干扰，提高了天线组件3的抗干扰能力。
如图9和图10所示，在本申请的一个可选实施例中，交互平板还包括金属后盖5，主板6设置于金属背板2背向显示屏1的一面，金属后盖5与金属背板2连接且覆盖主板6。具体地，金属后盖5与金属背板2连接后形成一容纳腔，主板6位于该容纳腔内并且与金属背板2机械连接，在一个示例中，主板6与金属背板2通过螺丝连接，一方面，主板6设置在金属背板2背向显示屏1的一面，通过金属背板2隔离主板6与显示屏1，可以避免主板6与显示屏1相互干扰，另一方面，通过金属后盖5覆盖主板6，既可以保护主板6不受物理撞击、防尘以及防水，又可以避免主板6受到电磁干扰。
如图10和图11所示，在一个可选实施例中，当交互平板设置金属后盖5时，天线组件3位于金属后盖5所覆盖的区域外，需要说明的是，天线组件3可以位于金属后盖5所覆盖的区域外的任意位置，本申请实施例对天线组件3在金属背板2上的位置不作限制。将天线组件3设置在金属后盖5所覆盖的区域外，金属后盖5隔离了主板6和天线组件3，可以避免主板6和天线组件3相互电磁干扰，天线组件3具备良好的抗干扰能力，提高了天线组件3的辐射性能。
如图10和图11所示，当天线组件3设置在金属后盖5所覆盖的区域外时，交互平板还可以包括装饰件7，该装饰件7与金属背板2连接且覆盖天线组件3，在一个示例中，装饰件7可以与金属背板2可拆卸式连接，例如，装饰件7可以通过卡扣、螺丝等连接方式与金属背板2机械连接以覆盖天线组件3，可以避免天线组件3外漏影响交互平板的整机美观，同时也可以起到保护天线组件3不受物理撞击、防尘、放水等作用。
在一个优选实施例中，装饰件7的材质可以为金属，例如，装饰件7的材质可以是铝、铜、铁等材质，从而可以将金属材质的装饰件7作为屏蔽罩，避免天线组件3受到金属背板2后方方向的电磁干扰，提高了天线组件3的抗干扰性能。
当然，装饰件7的材质也可以是非金属材质，在一个可选实施例中，金属背板2上被天线组件3所覆盖以外的区域设置有喷漆层，更优选地，装饰件7外漏的表面也设置有同样颜色的喷漆层，一方面，由于金属背板2的材质为金属，设置喷漆层可以避免金属背板2因为氧化等化学反应被锈蚀，另一方面，通过喷漆层可以避免金属裸露，交互平板整机具有良好的外观。
如图2所示，在本申请的一个可选实施例中，天线组件3还可以位于金属后盖5所覆盖的区域内，具体地，金属后盖5和金属背板2之间形成容纳腔，天线组件3设置在该容纳腔内并且与金属背板2连接，与天线组件3设置在金属后盖5所覆盖的区域外相同，金属背板2正对天线组件3的位置也设置有通孔。本申请实施例将天线组件3设置在金属后盖5所覆盖的区域内，天线组件3不外漏于交互平板外表面，无线额外增加装饰件7来遮盖外漏的天线组件3。
如图2所示，在本申请实施例的交互平板中，天线组件3的数量可以为两个或者两个以上，例如可以包括第一天线组件和第二天线组件，其中，第一天 线组件位于金属后盖5所覆盖的区域内，第二天线组件位于金属后盖5所覆盖的区域外，示例性地，第一天线组件可以是AP(无线接入点，Access Point)天线组件，第二天线组件可以是WiFi天线组件。其中，AP(无线接入点，Access Point)天线组件用于无线网络的无线交换机，也是无线网络的核心，无线AP是交互平板进入有线网络的接入点，主要用于宽带家庭、大楼内部以及园区内部，无线AP可以覆盖几十米至上百米的辐射范围。在交互平板中，AP天线组件主要用于与交互平板前方的传屏器等无线设备通信，具备前向辐射的功能即可。
本申请实施例将第一天线组件设置在金属后盖5所覆盖的区域内，第二天线组件设置在金属后盖5所覆盖的区域外，通过金属后盖5隔离两个天线组件，两个天线组件的隔离度好，无线信号不互相干扰。
当然，在实际应用中，也可以将两个天线组件3均设置在金属后盖5所覆盖的区域外，或者两个天线组件3均设置在金属后盖5所覆盖的区域内，本申请实施例对天线组件3设置在金属后盖5内还是设置在金属后盖5外不作限制。
以下结合附图对天线组件3和金属背板2的连接方式进行示例说明。
在本申请的一个示例中，如图12所示，天线组件3包括介质基板31以及设置在介质基板31上的天线单元32，天线组件3通过介质基板31与金属背板2连接，天线单元32与通孔21正对设置，具体地，介质基板31可以是PCB基板或者其他基板，介质基板31与金属背板2可拆卸式连接，例如介质基板31与金属背板2可以通过卡扣卡合、螺丝锁附等方式机械连接，或通过双面胶粘接。本申请实施例的天线组件3与金属背板2可拆卸式连接，可以方便拆卸天线组件3，方便对交互平板的天线组件3进行维修、更换作业。
如图12和图13所示，在本申请的一个示例中，介质基板31上设置有锁附 孔311，金属背板2设置有与锁附孔311匹配的抽芽22，抽芽22设置有内螺纹，抽芽22嵌入锁附孔311中以通过螺钉连接介质基板31和金属背板2，具体地，抽芽22可以是通过冲压工艺在金属背板2上所形成的、具有一定高度的圆柱体结构，可以在该圆柱体结构内攻牙形成螺纹，例如，抽芽22的高度通常小于介质基板31的厚度，以使得螺钉锁入锁附孔后，螺钉的螺帽可以压紧介质基板31，以将介质基板31固定在金属背板2上。本申请实施例通过在金属背板2上设置抽芽22来与介质基板31机械连接，通过抽芽22嵌入介质基板31的锁附孔311中，可以方便介质基板31定位，能够在交互平板上快速装配天线组件3。
进一步地，介质基板31与金属背板2之间还设置有导电体，可选地，导电体2可以是弹性导电体，如可以是导电泡棉、导电布、导电漆、金属弹片中的一种。以导电泡棉为示例，可以在介质基板31与金属背板2之间设置有导电泡棉，该导电泡棉在介质基板31的四周，以提高介质基板31面向金属背板2的一面的四周的裸露铺铜与金属背板2的电连接性能，使得天线组件3具有良好的接地性能及抗干扰性能。
如图12和图14所示，在本申请的另一个示例中，金属背板2背向显示屏1的一面设置有若干凸包23，凸包23设置有内螺纹，介质基板31位于凸包23上，介质基板31与凸包23通过螺钉连接，以实现天线组件3与金属背板2可拆卸式连接。进一步地，介质基板31与金属背板2之间设置有导电体，导电体在介质基板311的四周。本申请实施例的凸包23具有一定高度，将介质基板31设置在凸包23上，介质基板31与金属背板2之间具有一定的距离，使得介质基板31与金属背板2相向的一面可以布置电子元件。
为了提高天线组件3的抗干扰能力，本申请实施例结合附图对天线组件3的屏蔽结构进行说明。
如图16所示，在一个示例中，天线组件3还包括第一金属屏蔽罩35，第一金属屏蔽罩35覆盖介质基板31，具体地，第一金属屏蔽罩35可以与介质基板31机械连接和电连接，例如，第一金属屏蔽罩35与介质基板31通过焊锡、金属夹扣等方式实现机械连接和电连接，通过第一金属屏蔽罩35可以对保护整个天线组件3不受电磁干扰，提高了天线组件3的抗干扰能力。
在一个示例中，当天线组件3设置在金属后盖5所覆盖的区域内时，天线组件3需要增加第一金属屏蔽罩35，以避免金属后盖5内的主板6对天线组件3造成电磁干扰。
在另一个示例中，当天线组件3设置在金属后盖5所覆盖的区域外时，由于金属后盖5已隔离主板6与天线组件3，天线组件3可以不增加第一金属屏蔽罩35，或者是使用金属材质的装饰件7来作为屏蔽罩。
如图15和16所示，在本申请的一个可选实施例中，天线组件3上天线单元32的数量为两个或者两个以上，天线组件3还可以包括第二金属屏蔽罩34，每个天线单元32均被一个第二金属屏蔽罩34所覆盖，即每个天线单元32均设置有第二金属屏蔽罩34，由此可以提高天线单元32之间的隔离度，提高天线组件3的整体辐射性能，更优选地，天线单元32到第二金属屏蔽罩34的底部的距离为天线单元32辐射的电磁波的四分之一波长的整数倍，从而可以提高天线单元32的前向辐射能力，增加天线单元32的辐射距离。
图15为本申请实施例的天线组件3的天线单元的示意图，在本申请的可选实施例中，天线组件3的介质基板31上还设置有射频芯片33，天线单元32通过介质基板31上的信号传输线与射频芯片33电连接，在一个可选实施例中，射频芯片33与天线单元32位于介质基板31的同一面，从而使得天线组件3的整体厚度更小，在另一个可选实施例中，射频芯片33与天线单元32位于介质 基板31不同面上，从而可以充分利用介质基板31的两面，减小介质基板的整体面积。
如图17所示，本申请实施例的天线组件3可以包括第一天线单元321和第二天线单元322，第一天线单元321和第二天线单元322分别位于射频芯片33的两侧，并且分别通过第一信号传输线36和第二信号传输线40与射频芯片电连接。将第一天线单元321和第二天线单元322设置在射频芯片33的两侧可以增加第一天线单元321与第二天线单元322之间的距离，提高第一天线单元321与第二天线单元322之间隔离度。
如图17所示，介质基板31上设置有位于射频芯片33两侧的、处于铺铜面37的第一方形净空区域38和第二方形净空区域39，第一天线单元321位于第一方形净空区域38内，第二天线单元322位于第二方形净空区域39内。
如图17和18所示，第一天线单元321包括第一馈电枝节3211、第一L形枝节3212、第一T形枝节3213以及第一接地枝节3214。
其中，第一馈电枝节3211自第一边界3215向第一方形净空区域38内延伸且与所第一边界3215垂直，第一馈电枝节3211与第一边界3215的交界处与第一信号传输线36连接，第一边界3215为靠近射频芯片33的竖直边界。
第一L形枝节3212、第一T形枝节3213以及第一接地枝节3214位于第一馈电枝节3211远离第二边界3216的一侧，第二边界3216为与第一边界3215相邻的、垂直的边界，第一L形枝节3212包括第一枝节32121和第二枝节32122，第一枝节32121与第一馈电枝节3211连接，并且连接点位于第一馈电枝节3211的两端点之间，第一枝节32121与第一馈电枝节3211形成一钝角，第一枝节32121和第二枝节32122所形成的第一直角A朝向第一边界3215。
第一T形枝节3213包括第三枝节32131和第四枝节32132，第三枝节32131 位于第一枝节32121远离第一边界3215的一侧，且与第一枝节32121平行间隔设置，第四枝节32132位于第二枝节32122远离第一馈电枝节3211的一侧，且与第二枝节32122平行间隔设置，第四枝节32132延伸至第三边界3217以连接铺铜面37，第三边界3217为与第二边界3216平行的边界。
第一接地枝节3214包括第五枝节32141与第六枝节32142，第五枝节32141自第一边界3215向第一方形净空区域38内延伸且与第一馈电枝节3211平行，第六枝节32142与第一枝节32121平行间隔设置。
如图17和19所示，第二天线单元322包括第二馈电枝节3221、第二L形枝节3222、第二T形枝节3223以及第二接地枝节3224。
其中，第二馈电枝节3221与第一馈电枝节3211以射频芯片33的中心线O-O呈镜像设置，第二馈电枝节3221与第二信号传输线40连接，第二T形枝节3223与第一T形枝节3213以射频芯片33的中心线O-O呈镜像设置，第二接地枝节3224与第一接地枝节3214以射频芯片33的中心线O-O呈镜像设置。
第二L形枝节3222包括第七枝节32221和第八枝节32222，第七枝节32221与第二馈电枝节3221连接，并且连接点位于第二馈电枝节3221远离第四边界3225的一端，第七枝节32221与第二馈电枝节3221形成一钝角，第七枝节32221和第八枝节32222所形成的第二直角B朝向第四边界3225，第四边界3225为第二方形净空区域39中靠近射频芯片33的竖直边界。
如图20所示，在本申请的另一可选实施例中，第二天线单元322的结构可以与第一天线单元321的结构相同，并且第一天线单元321与第二天线单元322以射频芯片33的中心线O-O为中心呈镜像设置。
如图21和图22所示为本申请的另一实施例的天线组件3的示意图，如图21所示，天线组件3包括设置在介质基板31上的第一天线单元321和第二天线 单元322，第一天线单元321与第二天线单元322以射频芯片33的中心线O-O为中心呈镜像设置。
如图22为第一天线单元321的结构示意图，第一天线单元321包括第一馈电枝节3211、第一L形枝节3212和L形接地枝节3218。
第一馈电枝节3211自第一边界3215向第一方形净空区域38内延伸且与第一边界3215垂直，第一馈电枝节3211与第一边界3215的交界处与第一信号传输线36连接，第一边界3215为靠近射频芯片33的竖直边界。
第一L形枝节3212和L形接地枝节3218位于第一馈电枝节3211靠近第二边界3216的一侧，第一L形枝节3212包括第一枝节32121和第二枝节32122，第一枝节32121与第一馈电枝节3211连接，并且连接点位于第一馈电枝节3211远离第一边界3215的一端，第一枝节32121与第一馈电枝节3211形成一钝角，第一枝节32121和第二枝节32122所形成的第一直角A朝向第一边界3215，第二边界3216为与第一边界3215相邻的、垂直的边界。
L形接地枝节3218包括第九枝节32181和第十枝节32182，第九枝节32181位于第一枝节32121远离第一边界3215的一侧，且与第一枝节32121平行间隔设置，第十枝节32182位于第二枝节32122远离第一馈电枝节3211的一侧，且与第二枝节32122平行间隔设置，第十枝节32182延伸至第二边界3216以连接铺铜面37。
以上结合图17-图21说明了本申请实施例的天线组件3中第一天线单元321和第二天线单元322的结构，在实际应用中，本领域技术人员还可以设置其他结构的天线单元，并且第一天线单元321和第二天线单元322的结构可以相同，也可以不相同，本申请实施例对第一天线单元321和第二天线单元322的结构不加以限制。
本申请实施例的交互平板包括显示屏、金属背板、天线组件和主板，其中，金属背板位于显示屏后方并且金属背板上设置有通孔，天线组件设置在金属背板背向显示屏的一面，并且位于显示屏的显示区域内，天线组件与通孔正对设置，主板设置在金属背板背向显示屏的一面，天线组件与主板电连接。在本申请实施例中，天线组件设置在显示屏的显示区域内，可透过金属背板上的通孔、显示屏向前辐射信号，不占用交互平板的边框区域，边框可以做得更窄，提高了交互平板的屏占比甚至实现全面屏设计。
在本说明书的描述中，参考术语“一实施例”、“示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚器件，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以适当组合，形成本领域技术人员可以理解的其他实施方式。
以上结合具体实施例描述了本申请的技术原理。这些描述只是为了解释本申请的原理，而不能以任何方式解释为对本申请保护范围的限制。基于此处的解释，本领域的技术人员不需要付出创造性的劳动即可联想到本申请的其它具体实施方式，这些方式都将落入本申请的保护范围之内。

Claims (28)

  1. 一种交互平板，其特征在于，包括:
    显示屏；
    金属背板，所述金属背板位于所述显示屏背面，所述金属背板上设置有通孔；
    天线组件，所述天线组件设置在所述金属背板背向所述显示屏的一面，并且位于所述显示屏的显示区域内，所述天线组件与所述通孔正对设置；
    主板，所述主板设置于所述金属背板背向所述显示屏的一面，所述主板与所述天线组件电连接。
  2. 根据权利要求1所述的交互平板，其特征在于，所述显示屏包括背光层，所述背光层包括多个阵列形式的灯条，所述通孔在所述背光层的投影位于两个所述灯条之间。
  3. 根据权利要求1所述的交互平板，其特征在于，所述天线组件包括介质基板以及设置在所述介质基板上的天线单元，所述天线组件通过所述介质基板与所述金属背板连接，所述天线单元与所述通孔正对设置。
  4. 根据权利要求3所述的交互平板，其特征在于，所述介质基板与所述金属背板可拆卸式连接。
  5. 根据权利要求3所述的交互平板，其特征在于，所述金属背板背向所述显示屏的一面设置有若干凸包，所述凸包设置有内螺纹，所述介质基板位于所述凸包上，所述介质基板与所述凸包通过螺钉连接。
  6. 根据权利要求5所述的交互平板，其特征在于，所述介质基板与所述金属背板之间设置有导电体，所述导电体在所述介质基板的四周。
  7. 根据权利要求3所述的交互平板，其特征在于，所述介质基板上设置有锁附孔，所述金属背板设置有与所述锁附孔匹配的抽芽，所述抽芽设置有内螺纹， 所述抽芽嵌入所述锁附孔中以通过螺钉连接所述介质基板和所述金属背板。
  8. 根据权利要求7所述的交互平板，其特征在于，所述介质基板与所述金属背板之间设置有导电体，所述导电体在所述介质基板的四周。
  9. 根据权利要求3所述的交互平板，其特征在于，所述天线组件还包括第一金属屏蔽罩，所述第一金属屏蔽罩覆盖所述介质基板。
  10. 根据权利要求9所述的交互平板，其特征在于，所述天线单元的数量至少为两个，所述天线组件还包括第二金属屏蔽罩，每个所述第二金属屏蔽罩覆盖一个所述天线单元。
  11. 根据权利要求3所述的交互平板，其特征在于，所述天线组件还包括位于所述介质基板上的射频芯片，所述天线单元与所述射频芯片连接。
  12. 根据权利要求11所述的交互平板，其特征在于，所述射频芯片和所述天线单元位于所述介质基板的同一面。
  13. 根据权利要求12所述的交互平板，其特征在于，所述天线单元包括第一天线单元和第二天线单元，所述第一天线单元和所述第二天线单元分别位于所述射频芯片的两侧。
  14. 根据权利要求13所述的交互平板，其特征在于，所述介质基板上设置有位于所述射频芯片两侧的、处于铺铜面的第一方形净空区域和第二方形净空区域，所述第一天线单元位于所述第一方形净空区域内，所述第二天线单元位于所述第二方形净空区域内。
  15. 根据权利要求14所述的交互平板，其特征在于，所述第一天线单元包括第一馈电枝节、第一L形枝节、第一T形枝节以及第一接地枝节；
    所述第一馈电枝节自第一边界向所述第一方形净空区域内延伸且与所述第一边界垂直，所述第一馈电枝节与所述第一边界的交界处与第一信号传输线连 接，所述第一边界为靠近所述射频芯片的竖直边界；
    所述第一L形枝节、第一T形枝节以及第一接地枝节位于所述第一馈电枝节远离第二边界的一侧，所述第二边界为与所述第一边界相邻的、垂直的边界，所述第一L形枝节包括第一枝节和第二枝节，所述第一枝节与所述第一馈电枝节连接，并且连接点位于所述第一馈电枝节的两端点之间，所述第一枝节与所述第一馈电枝节形成一钝角，所述第一枝节和所述第二枝节所形成的第一直角朝向所述第一边界；
    所述第一T形枝节包括第三枝节和第四枝节，所述第三枝节位于所述第一枝节远离所述第一边界的一侧，且与所述第一枝节平行间隔设置，所述第四枝节位于所述第二枝节远离所述第一馈电枝节的一侧，且与所述第二枝节平行间隔设置，所述第四枝节延伸至第三边界以连接铺铜面，所述第三边界为与所述第二边界平行的边界；
    所述第一接地枝节包括第五枝节与第六枝节，所述第五枝节自所述第一边界向所述第一方形净空区域内延伸且与所述第一馈电枝节平行，所述第六枝节与所述第一枝节平行间隔设置。
  16. 根据权利要求15所述的交互平板，其特征在于，所述第二天线单元包括第二馈电枝节、第二L形枝节、第二T形枝节以及第二接地枝节；
    所述第二馈电枝节与所述第一馈电枝节以所述射频芯片为中心呈镜像设置，第二T形枝节与所述第一T形枝节以所述射频芯片为中心呈镜像设置，所述第二接地枝节与所述第一接地枝节以所述射频芯片为中心呈镜像设置；
    所述第二L形枝节包括第七枝节和第八枝节，所述第七枝节与所述第二馈电枝节连接，并且连接点位于所述第二馈电枝节远离第四边界的一端，所述第七枝节与所述第二馈电枝节形成一钝角，所述第七枝节和所述第八枝节所形成 的第二直角朝向所述第四边界，所述第四边界为所述第二方形净空区域中靠近所述射频芯片的竖直边界。
  17. 根据权利要求14所述的交互平板，其特征在于，所述第一天线单元包括第一馈电枝节、第一L形枝节和L形接地枝节；
    所述第一馈电枝节自第一边界向所述第一方形净空区域内延伸且与所述第一边界垂直，所述第一馈电枝节与所述第一边界的交界处与第一信号传输线连接，所述第一边界为靠近所述射频芯片的竖直边界，所述第二边界为与所述第一边界相邻的、垂直的边界；
    所述第一L形枝节和所述L形接地枝节位于所述第一馈电枝节靠近所述第二边界的一侧，所述第一L形枝节包括第一枝节和第二枝节，所述第一枝节与所述第一馈电枝节连接，并且连接点位于所述第一馈电枝节远离所述第一边界的一端，所述第一枝节与所述第一馈电枝节形成一钝角，所述第一枝节和所述第二枝节所形成的第一直角朝向所述第一边界；
    所述L形接地枝节包括第九枝节和第十枝节，所述第九枝节位于所述第一枝节远离所述第一边界的一侧，且与所述第一枝节平行间隔设置，所述第十枝节位于所述第二枝节远离所述第一馈电枝节的一侧，且与所述第二枝节平行间隔设置，所述第十枝节延伸至第二边界以连接铺铜面。
  18. 根据权利要求15或17所述的交互平板，其特征在于，所述第二天线单元与所述第一天线单元以所述射频芯片为中心呈镜像设置。
  19. 根据权利要求13所述的交互平板，其特征在于，所述第一天线单元和所述第二天线单元为WiFi天线单元。
  20. 根据权利要求13所述的交互平板，其特征在于，所述第一天线单元和第二天线单元的第一辐射频段为WiFi 2.4G频段，第二辐射频段为WiFi 5G频段。
  21. 根据权利要求1-10任一项所述的交互平板，其特征在于，还包括装饰件，所述装饰件与所述金属背板连接且覆盖所述天线组件。
  22. 根据权利要求21所述的交互平板，其特征在于，所述装饰件的材质为金属。
  23. 根据权利要求1-10任一项所述的交互平板，其特征在于，还包括金属后盖，所述金属后盖与所述金属背板连接且覆盖所述主板。
  24. 根据权利要求23所述的交互平板，其特征在于，所述天线组件位于所述金属后盖所覆盖的区域外。
  25. 根据权利要求23所述的交互平板，其特征在于，所述天线组件位于所述金属后盖所覆盖的区域内。
  26. 根据权利要求23所述的交互平板，其特征在于，所述天线组件包括第一天线组件和第二天线组件，所述第一天线组件位于所述金属后盖所覆盖的区域内，所述第二天线组件位于所述金属后盖所覆盖的区域外。
  27. 根据权利要求26所述的交互平板，其特征在于，所述第一天线组件为无线接入点天线组件，第二天线组件为WiFi天线组件。
  28. 根据权利要求1-10任一项所述的交互平板，其特征在于，所述金属背板被所述天线组件所覆盖以外的区域设置有喷漆层。
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