WO2022042000A1 - 一种电子设备 - Google Patents

一种电子设备 Download PDF

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Publication number
WO2022042000A1
WO2022042000A1 PCT/CN2021/102642 CN2021102642W WO2022042000A1 WO 2022042000 A1 WO2022042000 A1 WO 2022042000A1 CN 2021102642 W CN2021102642 W CN 2021102642W WO 2022042000 A1 WO2022042000 A1 WO 2022042000A1
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WO
WIPO (PCT)
Prior art keywords
display panel
electronic device
antenna elements
array antenna
flexible board
Prior art date
Application number
PCT/CN2021/102642
Other languages
English (en)
French (fr)
Inventor
黄国书
Original Assignee
深圳市万普拉斯科技有限公司
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 深圳市万普拉斯科技有限公司 filed Critical 深圳市万普拉斯科技有限公司
Publication of WO2022042000A1 publication Critical patent/WO2022042000A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • 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
    • 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
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Definitions

  • the present application relates to the field of communication technologies, and in particular, to an electronic device with an antenna.
  • the antenna In electronic equipment with wireless communication function, there is always a device that radiates electromagnetic energy to space and receives electromagnetic energy from space, and this device is the antenna.
  • the function of the antenna is to transmit digital or analog signals modulated to the radio frequency to the space wireless channel, or to receive digital or analog signals modulated at the radio frequency from the space wireless channel.
  • metal mesh Metal Mesh
  • AOD Antenna on display
  • the present application provides an electronic device to solve the problem that it is difficult to balance the antenna radiation performance and the touch display performance of the electronic device with the existing on-screen antenna technology.
  • An electronic device provided by the present application includes a display panel, the display panel has a display area and a frame area surrounding the periphery of the display area, the electronic device further includes: an array antenna disposed on the light-emitting side of the display panel, and located in the frame area; a radio frequency integrated circuit chip; and a transmission line, electrically connecting the radio frequency integrated circuit chip and the array antenna.
  • FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
  • Fig. 2 is the assembly schematic diagram of the array antenna and the display panel
  • Fig. 3 is the partial structure schematic diagram of the electronic device shown in Fig. 1;
  • FIG. 4 is a cross-sectional view of an array antenna, a radio frequency integrated circuit chip and a transmission line on a flexible board;
  • Fig. 5 is the partial enlarged schematic diagram of the dotted line selected area shown in Fig. 2;
  • 6 to 10 are schematic diagrams of the arrangement of antenna elements in the frame area.
  • the electronic devices mentioned in the embodiments of this application may be implemented by using various types of terminals.
  • these terminals can be mobile devices such as smart phones, digital broadcasting terminals, PDAs (Personal Digital Assistants or tablet computers), portable multimedia players, navigators, portable computers, etc., or can be worn on the limbs.
  • wearable devices with corresponding functions embedded in clothing, jewelry, accessories, etc. such as smart watches, smart glasses, and head mounted displays (HMD).
  • HMD head mounted displays
  • FIG. 2 is a schematic diagram of the assembly of an array antenna and a display panel
  • FIG. 3 is a schematic diagram of a partial structure of the electronic device shown in FIG. 1 . Please refer to FIGS. 1 to 3 together.
  • the electronic device 10 includes a display panel 11 , an array antenna 12 , a radio frequency integrated circuit (RFIC) chip 13 , and a transmission line 14 .
  • RFIC radio frequency integrated circuit
  • the display panel 11 is provided with a display area (Active Area, AA) 111 and a bezel area (Bezel Area) 112.
  • the display area 111 is also called an effective display area, which determines the total area of the display panel 11 that can display images.
  • the bezel area 112 Also called a non-display area, it is disposed around the display area 111 , and the display panel 11 may be provided with various types of wirings in the frame area 112 .
  • the number and position of the frame areas 112 are determined according to the overall structure of the electronic device 10 .
  • the electronic device 10 may have four frame areas 112 , up, down, left, and right, or may include only two frame areas 112 .
  • the frame area 112 may be an area surrounding the periphery of the display area 111 .
  • the display panel 11 is not only used for displaying images, but also can be integrated with a structural unit implementing a touch function, so it is also called a touch screen, and the touch screen can also be used as an input unit of the electronic device 10 .
  • the electronic device 10 also includes a casing (such as a frame, a casing, a cover plate, etc.) for defining the appearance of the device.
  • a casing such as a frame, a casing, a cover plate, etc.
  • the embodiments of the present application are arranged in front and rear orientations.
  • the casings are collectively referred to as front casings.
  • the body 101 , the cover plate and the rear case (not shown in the figure), various electronic components of the electronic device 10 are contained in the space formed by the assembly of the three.
  • the transparent cover plate covers and protects the display panel 11.
  • the light transmission performance of the cover plate directly affects the light transmission performance of the electronic device 10. The better the light transmission performance of the cover plate, the better the light transmission performance of the electronic device 10. Therefore, in practice In application scenarios, the cover plate can be a transparent glass cover plate.
  • the front case 101 is not a complete plate body, but a window is opened in the middle thereof, so the front case 101 can also be called a front frame 101, the front frame 101 is pressed and held on a transparent cover, and covers
  • the frame area 112 of the display panel 11 forms the frame of the electronic device 10
  • the display area 111 of the display panel 11 is exposed through the window of the front case 101 to define the display interface of the electronic device 10 .
  • the front case 101 is assembled with the rear case, and the front case 101, the cover and the display panel 11 together form the front surface of the electronic device 10.
  • the front frame 101 is not provided, the transparent cover plate covers and protects the display panel 11, and the cover plate is fixed to the frame area 112 of the display panel 11, for example, through a transparent optical Adhesive (Optically Clear Adhesive, OCA) is used for bonding, thereby forming a frame (commonly referred to as a black frame) of the electronic device 10 .
  • a transparent optical Adhesive Optically Clear Adhesive, OCA
  • the display area 111 of the display panel 11 is exposed through a transparent cover plate to define the display interface of the electronic device 10 .
  • the transparent cover plate and the display panel 11 together form the front surface of the electronic device 10 .
  • the array antenna 12 is disposed on the light-emitting side of the display panel 11 and is located in the frame area 112 of the display panel 11 .
  • the transparent cover plate covers the array antenna 12, and the transparent optical glue applied between the transparent cover plate and the display panel 11, and used to realize the fixed connection between the two, can cover the array antenna 12, which is beneficial to keep the array antenna
  • the position of 12 is fixed, and the polarization direction of the array antenna 12 is kept from being deflected.
  • the RFIC chip 13 is disposed on the back side of the display panel 11 , and the array antenna 12 is electrically connected to the RFIC chip 13 through the transmission line 14 .
  • the array antenna 12 is controlled by the RFIC chip 13 to transmit or receive electromagnetic waves loaded with different information. .
  • the array antenna 12 is arranged in the frame area 112 of the display panel 11 , and the display area 111 of the electronic device 10 is not shielded by the antenna, so the existing touch function and light transmittance of the electronic device 10 will not be affected, which can ensure Its display function, in addition, the array antenna 12 does not necessarily need to use metal mesh technology (of course, metal mesh technology can also be used, which will be explained in detail later), and it can meet the requirements of radiation performance without a large area.
  • the embodiments of the application are favorable for taking into account the antenna radiation performance and the touch display performance of the electronic device 10 .
  • the array antenna 12 and the RFIC chip 13 are disposed on opposite sides of the display panel 11 .
  • the transmission line 14 needs to be bent and span the side of the display panel 11 .
  • the electronic device 10 may be provided with a flexible board 15 .
  • the array antenna 12 , the RFIC chip 13 and the transmission line 14 are carried on the flexible board 15 , and the flexible board 15 can be bent according to the predetermined design due to its bendable characteristics.
  • the flexible board 15 when the flexible board 15 is not bent In a flat state, the array antenna 12 and the RFIC chip 13 are located at opposite ends of the flexible board 15, respectively. Then, the end of the flexible board 15 carrying the array antenna 12 is fixed on the light-emitting side of the display panel 11 and located in the frame area 112 of the flexible board 15. inside, and the flexible board 15 is bent. As shown in FIG.
  • one end of the bent flexible board 15 and the array antenna 12 thereon are fixed on the light-emitting side of the display panel 11 and located in the frame area 112 .
  • the array antenna 12 is carried on the side of the flexible board 15 that faces away from the display panel 11.
  • the RFIC chip 13 follows the other end of the flexible board 15 to move towards the back side of the display panel 11, and finally moves to the display panel 11. A predetermined position on the back side of the panel 11 .
  • the electronic device 10 can reuse its own flexible printed circuit board (Flexible Printed Circuit, FPC) as the flexible board 15, for example, the flexible board 15 can be an FPC that electrically connects the display panel 11 and the main circuit board .
  • the main circuit board can be regarded as the core circuit board of the electronic device, which is used to control all electronic components of the electronic device 10, and the FPC is used to electrically connect the main circuit board with the display panel 11, so as to transmit the control signal of the main circuit board.
  • the display panel 11 is controlled to display images, and the touch signal of the display panel 11 is transmitted to the main circuit board, so that the main circuit board generates corresponding control signals.
  • the flexible board 15 As the FPC as an example, please refer to FIG. 4 .
  • the flexible board 15 When the flexible board 15 is in an unbent flat state, the light exiting direction along the display panel 11 (the direction shown by the arrow in FIG. 4 ) Above, the flexible board 15 , the array antenna 12 , the transmission line 14 and the RFIC chip 13 are arranged in layers in sequence.
  • the array antenna 12 is located on the flexible board 15 , and the transparent cover 102 is bonded to the array antenna 12 through a first adhesive layer (eg, OCA) 41 .
  • a first adhesive layer eg, OCA
  • the transmission line 14 is located on the upper layer of the array antenna 12 , and a second adhesive layer 42 , such as an adhesive sheet or a film (PrePreg, PP), can be bonded between the two.
  • a second adhesive layer 42 such as an adhesive sheet or a film (PrePreg, PP)
  • the RFIC chip 13 is located on the upper layer of the transmission line 14 and is electrically connected to the transmission line 14 .
  • an insulating second adhesive layer 42 is provided between the array antenna 12 and the transmission line 14 in FIG. 4 , the two are electrically connected, and the structure for realizing the electrical connection between the two is not shown in FIG. 4 .
  • the embodiment of the present application has considered the influence on the radiation performance after the combination of the array antenna 12 and the cover plate becomes a black frame, and pre-compensation can be made in the design of the array antenna 12 to prevent the gain from decreasing. Therefore, after assembly The radiation performance of the array antenna 12 can still be ensured.
  • the pre-compensation method includes, but is not limited to, for example, for the array antenna 12 using the metal grid technology, the area of the radiator of the array antenna 12 in the frame area 112 can be increased.
  • the array antenna 12 may also use an antenna-in-package (Antenna-in-Package, AiP) technology.
  • the array antenna 12 includes, but is not limited to, a patch antenna or a millimeter-wave antenna, which can transmit signals to the transmission line 14 by direct connection or coupling.
  • the direct connection method is also called physical contact.
  • a via hole may be formed in the second adhesive layer 42, and the array antenna 12 and the transmission line 14 are connected through the via hole.
  • the coupling (Couple or slot) mode can be a capacitive coupling mode, for example, a capacitor is formed between the array antenna 12 and the transmission line 14, and a signal is transmitted between the two through the capacitor.
  • a first conductive layer 43 is used as the ground layer of the array antenna 12 to ground the array antenna 12, for example, it can block electromagnetic interference from the display panel 11
  • the second conductive layer 45 is used as the ground layer of the RFIC chip 13, used to ground the RFIC chip 13 .
  • FIG. 5 is a partial enlarged schematic view of the region selected by the dotted line shown in FIG. 2 .
  • the array antenna 12 includes several antenna elements 121 , which can be divided into receiving antenna elements for receiving electromagnetic waves and transmitting antenna elements for transmitting electromagnetic waves according to functions.
  • These antenna elements 121 are all electrically connected to a single port of the RFIC chip 13 through the transmission line 14 , that is, the RFIC chip 13 is provided with a plurality of ports, the transmission line 14 includes a plurality of traces 141 , and each port of the RFIC chip 13 is connected correspondingly
  • a wire 141 is electrically connected to the antenna element 121 of the array antenna 12 through the wire 141 .
  • one antenna element 121 can be connected to two traces 141 . For example, when four antenna elements 121 are arranged, eight traces 141 are connected to eight ports of the RFIC chip 13, respectively.
  • the transmission line 14 can adopt a stripline design, that is, these traces 141 can be stripline, which can reduce the radiation loss during the signal transmission process, reduce the occurrence of interference and interference, and avoid interruption due to short circuit of the signal. problem occurs.
  • These traces 141 may be electrically connected to the RFIC chip 13 by way of communication posts or electromagnetic coupling.
  • the array antenna 12 can transmit or receive electromagnetic waves through these antenna elements 121 operating based on multiple-in multiple-out (MIMO). Since MIMO operation is implemented using each antenna element 121, each antenna element 121 operates in Tx (transport, transmit) and Rx (receive, receive) modes.
  • MIMO multiple-in multiple-out
  • the specific arrangement of the antenna elements 121 in the frame area 112 is not limited in the embodiment of the present application. The following description will only be given by taking those shown in FIGS. 5 to 9 as an example.
  • these transmitting antenna elements Tx and receiving antenna elements Rx are arranged along a direction parallel to the lateral side of the display panel 11 (x direction in FIG. 6 ), or, as shown in FIG. 7 , these transmitting antennas Both the element Tx and the receiving antenna element Rx are arranged in a direction parallel to the vertical side of the display panel 11 (the y direction in FIG. 7 ).
  • the spacing d3 of any two adjacent receiving antenna elements Rx is an integral multiple of the half wavelength of the electromagnetic wave, while the spacing d1 between two adjacent transmitting antenna elements Tx, and the spacing d2 between adjacent transmitting antenna elements Tx and receiving antenna elements Rx , and this embodiment of the present application does not limit its value.
  • the array antenna 12 can be regarded as a MIMO antenna with good angular resolution.
  • the polarization directions of the transmitting antenna elements Tx and the receiving antenna elements Rx are the same, for example, both can be horizontal polarization direction or vertical polarization direction, so that the array antenna 12 has a two-position scanning function, and can identify the left and right or upper and lower sides. Electromagnetic wave signal.
  • a part of the transmitting antenna elements Tx and the receiving antenna elements Rx are arranged along a first direction, and the other part is arranged along a second direction, and the first direction and the second direction are perpendicular, as shown in FIG.
  • the two transmitting antenna elements Tx are arranged along the second direction y
  • the two receiving antenna elements Rx are arranged along the first direction x
  • the remaining two receiving antenna elements Rx are arranged along the second direction y
  • the first The direction x is a horizontal direction
  • the second direction y is a vertical direction.
  • one transmitting antenna element Tx and two receiving antenna elements Rx are arranged along the first direction x
  • two receiving antenna elements Rx and one transmitting antenna element Tx are arranged along the second direction y.
  • the spacing d3 of any two adjacent receiving antenna elements Rx is an integer multiple of the half wavelength of the electromagnetic wave, and the ratio of length to width of any antenna element is greater than 1, that is, the length and width are different.
  • the ratio of the length W3 to the width W2 of the two horizontally arranged receiving antenna elements Rx is greater than 1, that is, W3/W2>1
  • the ratio of the length W4 to the width W5 of the two vertically arranged transmitting antenna elements Tx is greater than 1, That is, W4/W5>1.
  • the polarization directions of these transmitting antenna elements Tx and receiving antenna elements Rx are the same.
  • the polarization direction shown by the blank arrow in FIG. 9 is the vertical polarization direction.
  • the polarization directions can also be horizontal polarization directions. The same direction enables the array antenna 12 to identify the electromagnetic wave signals from the left and right sides or the upper and lower sides at the same time.
  • the transmitting antenna elements Tx and the receiving antenna elements Rx may adopt the arrangement shown in FIG. 8 , but the polarization directions of the transmitting antenna elements Tx and the receiving antenna elements Rx are different,
  • the antenna elements arranged in the second direction y are the vertical polarization directions shown by the blank arrows
  • the antenna elements arranged along the first direction x are the horizontal polarization directions shown by the blank arrows, so that the array antenna 12 It can realize three-dimensional scanning function, identify electromagnetic wave signals from up, down, left and right, and has a large signal receiving range.
  • the respective numbers of the transmitting antenna elements Tx and the receiving antenna elements Rx are not limited to the exemplary descriptions in FIGS. 6 to 10 .
  • the surfaces of the antenna elements 121 can be coated with fluorine paint. The application of the fluorine paint on the antenna elements 121 can improve the service life and telecommunication reliability of the array antenna 12 .
  • first and second are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as “first” and “second” may expressly or implicitly include one or more features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.

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  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

本申请公开了一种电子设备，包括阵列天线、射频集成电路芯片以及传输线，阵列天线设置于显示面板的出光侧，且位于其边框区内，传输线电连接射频集成电路芯片和阵列天线。

Description

一种电子设备
交叉引用
本发明要求在2020年08月25日提交中国专利局、申请号为202010868831.6、发明名称为“一种电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请涉及通信技术领域，具体涉及一种具有天线的电子设备。
背景技术
在具有无线通信功能的电子设备中，总存在一个向空间辐射电磁能量和从空间接收电磁能量的装置，这个装置就是天线。天线的作用是将调制到射频频率的数字信号或模拟信号发射到空间无线信道，或从空间无线信道接收调制在射频频率上的数字或模拟信号。
当前，在智能手机等电子设备中，业界通常采用例如金属网格(Metal Mesh)技术实现屏上天线(Antenna on display,AOD)，核心在于显示屏(例如在偏光片上)增加金属网格层作为天线辐射体，为确保天线的辐射性能，金属网格层的面积需要足够大，这会影响显示屏的透光度和触控功能。可见，现有技术很难兼顾天线辐射性能和触控显示性能。
发明内容
有鉴于此，本申请提供一种电子设备，以解决现有屏上天线技术很难兼顾电子设备的天线辐射性能和触控显示性能的问题。
本申请提供的一种电子设备，包括显示面板，所述显示面板具有显示区和围绕于显示区外围的边框区，所述电子设备还包括：阵列天线，设置于所述显示面板的出光侧，且位于所述边框区内；射频集成电路芯片；传输线， 电连接所述射频集成电路芯片和阵列天线。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例的电子设备的结构示意图；
图2是阵列天线与显示面板的装配示意图；
图3是图1所示的电子设备的局部结构示意图；
图4是阵列天线、射频集成电路芯片及传输线在柔性板上的剖视图；
图5是图2所示的虚线选定区域的局部放大示意图；
图6～图10是天线元件在边框区的排布示意图。
具体实施方式
下面结合附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，本申请下文所描述实施例仅是一部分实施例，而非全部。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。在不冲突的情况下，下述各个实施例及其技术特征可以相互组合。
本申请实施例提及的电子设备，可利用各种不同类型的终端来实现。示例性地，这些终端可以为智能手机、数字广播终端、PDA(Personal Digital Assistant,个人数字助理或平板电脑)、便携式多媒体播放器、导航仪、便携式计算机等移动设备，也可以为可佩戴于肢体或者嵌入于衣物、首饰、配件等中的具有相应功能的可穿戴设备，例如智能手表、智能眼镜、头戴式显示器(Head mounted display,HMD)。
下文以图1所示的智能手机为例，来描述本申请实施例的电子设备。图2是阵列天线与显示面板的装配示意图，图3是图1所示的电子设备的局部结构示意图。请一并参阅图1～图3，电子设备10包括显示面板11、阵列天线12、射频集成电路(Radio Frequency Integrated Circuit,RFIC)芯片13、以及传输线(Transmission Line)14。
显示面板11设置有显示区(Active Area,AA)111和边框区(Bezel Area)112，显示区111又称为有效显示区域，其决定了显示面板11的可显示图像的总面积，边框区112又称为非显示区，其围绕显示区111设置，显示面板11在边框区112内可以设置有各类走线。
边框区112的数量及位置根据电子设备10的整体结构而定，电子设备10可以具有上下左右四个边框区112，也可以仅包括上下两个边框区112。电子设备10的显示面板11为圆形时，边框区112可以是围绕于显示区111外围的区域。显示面板11不仅用于显示图像，还可以集成有实现触控功能的结构单元，因此又称为触摸屏，该触摸屏还可用作电子设备10的输入单元。
电子设备10还包括用于限定设备外观的壳体(例如框架、外壳、盖板等)，为便于描述，本申请实施例按照前后方位设置，概括言之，将所述壳体统称为前壳体101、盖板和后壳体(图未示)，电子设备10的各种电子元器件被包含在这三者相装配形成的空间中。
透明的盖板覆盖并保护显示面板11，盖板的透光性能直接影响到电子设备10的透光性能，盖板的透光性能越好、电子设备10的透光性能越佳，因此在实际应用场景中，盖板可以为透明玻璃盖板。
前壳体101并非一完整的板体，而是在其中部开设有窗口，由此该前壳体101还可以称为前框101，该前框101压持于透明的盖板上，并且覆盖显示面板11的边框区112，由此形成电子设备10的边框，而显示面板11的显示区111通过前壳体101的窗口予以暴露，以此界定了电子设备10的显示界面。前壳体101与后壳体相组装，前壳体101、盖板和显示面板11一起形成 电子设备10的前表面。
而对于采用全面屏技术的电子设备10，其并未设置有前述前框101，透明的盖板覆盖并保护显示面板11，且盖板与显示面板11的边框区112相固定，例如通过透明光学胶(Optically Clear Adhesive,OCA)粘接，由此形成电子设备10的边框(即通常所称的黑边框)。显示面板11的显示区111通过透明的盖板予以暴露，以此界定电子设备10的显示界面。透明的盖板和显示面板11一起形成电子设备10的前表面。
请一并参阅图1和图2所示，阵列天线12设置于显示面板11的出光侧，且位于显示面板11的边框区112内。透明的盖板覆盖于阵列天线12上，涂敷于透明的盖板和显示面板11之间、并用于实现两者固定连接的透明光学胶，可以覆盖阵列天线12，于此有利于保持阵列天线12的位置固定，保持阵列天线12的极化方向不发生偏转。
RFIC芯片13设置于显示面板11的背侧，阵列天线12通过传输线14被电连接至RFIC芯片13，于此，阵列天线12在RFIC芯片13的控制下，执行发送或接收加载有不同信息的电磁波。
基于上述，阵列天线12布局于显示面板11的边框区112，电子设备10的显示区111内并无天线遮蔽，因此并不会影响电子设备10既有的触控功能以及透光度，可确保其显示功能，另外，阵列天线12并不必须要采用金属网格技术(当然也可以采用金属网格技术，后文予以具体阐述)，无需较大面积也可以满足对辐射性能的要求，因此本申请实施例有利于兼顾电子设备10的天线辐射性能和触控显示性能。
在本申请实施例中，阵列天线12和RFIC芯片13设置于显示面板11的相对两侧，为了适应于此，如图2和图3所示，传输线14需要弯折并跨越显示面板11的侧边，为了确保信号传输的稳定性以及结构连接的稳定性，同时也有利于确保阵列天线12、RFIC芯片13和传输线14的定位，所述电子设备10可以设置柔性板15。
阵列天线12、RFIC芯片13和传输线14承载于柔性板15上，柔性板15的可弯折特性决定了其可以按照预定设计进行弯折，如图2所示，在柔性板15处于未弯折的平整状态下，阵列天线12和RFIC芯片13分别位于柔性板15的相对两端，然后，将柔性板15承载有阵列天线12的一端固定于显示面板11的出光侧，且位于其边框区112内，并对柔性板15进行弯折，如图3所示，弯折后的柔性板15的一端以及其上的阵列天线12即固定于显示面板11的出光侧，且位于边框区112内，此时阵列天线12承载于柔性板15的背向显示面板11的一侧上，在弯折过程中，RFIC芯片13跟随柔性板15另一端朝向显示面板11的背侧移动，并最终移动至显示面板11背侧的预定位置。
在一实施例中，所述电子设备10可以复用自身的柔性印刷电路板(Flexible Printed Circuit,FPC)作为柔性板15，例如，柔性板15可以为电连接显示面板11和主电路板的FPC。其中，主电路板可视为电子设备的核心电路板，用于控制电子设备10的所有电子元器件，FPC用于将主电路板与显示面板11电连接，从而将主电路板的控制信号传输给显示面板11以控制其显示图像，以及将显示面板11的触控信号传输给主电路板，以使主电路板产生相对应的控制信号。
以柔性板15为所述FPC为例，请参阅图4所示，在柔性板15处于未弯折的平整状态下，在沿显示面板11的出光方向(如图4中箭头所示的方向)上，柔性板15、阵列天线12、传输线14和RFIC芯片13依次分层设置。如图4中的(a)所示，阵列天线12位于柔性板15上，透明的盖板102通过第一胶层(例如OCA)41与阵列天线12粘接。如图4中的(b)所示，传输线14位于阵列天线12的上一层，且两者之间可通过第二胶层42，例如粘合片或胶片(PrePreg,PP)粘接。如图4中的(c)所示，RFIC芯片13位于传输线14的上一层，并与传输线14导电连接。
应理解，虽然图4中阵列天线12和传输线14之间设有绝缘的第二胶层42，但两者电连接，图4中未示出实现两者电连接的结构。另外，在装配前， 本申请实施例已经考量阵列天线12与盖板结合变为黑边框后对辐射性能的影响，可以在阵列天线12的设计上预做补偿，防止增益下降，因此在装配后仍能确保阵列天线12的辐射性能。其中，预做补偿的方式包括但不限于为：例如对于采用金属网格技术的阵列天线12，可以增大阵列天线12的辐射体在边框区112的面积。当然，阵列天线12也可以采用封装天线(Antenna-in-Package,AiP)技术。
所述阵列天线12包括但不限于为贴片天线或毫米波天线，其可以采用直接连接或耦合方式将讯号传送至传输线14。其中，直接连接方式又称为物理连接(Physical Contact)，例如可以在前述第二胶层42开设有导孔(Via hole)，阵列天线12和传输线14通过该导孔连接。耦合(Couple或slot)方式可以为电容耦合方式，例如在阵列天线12和传输线14之间形成电容，并通过该电容在两者之间传输迅号。
请继续参阅图4，未弯折的柔性板15背向阵列天线12的一侧，依次分层设置有第一导电层43、绝缘胶层44和第二导电层45，所述第一导电层43作为阵列天线12的接地层，用于将阵列天线12接地，例如可以阻挡来自显示面板11的电磁干扰，所述第二导电层45作为RFIC芯片13的接地层，用于将RFIC芯片13接地。
图5是图2所示的虚线选定区域的局部放大示意图。在本申请实施例中，如图5所示，阵列天线12包括若干天线元件121，按照功能可以划分为用于接收电磁波的接收天线元件和用于发送电磁波的发送天线元件。这些天线元件121均通过传输线14被电连接至RFIC芯片13的单个端口，也就是说，RFIC芯片13设置有多个端口，传输线14包括多条走线141，RFIC芯片13的每一端口对应连接一条走线141，并通过该走线141电连接至阵列天线12的天线元件121。另外，一个天线元件121可以连接两条走线141。例如，当布置四个天线元件121时，八条走线141分别被连接至RFIC芯片13的八个端口。
其中，传输线14可以采用带线型设计，即这些走线141可以为带状线，可以减少信号传输过程中的辐射损耗，并降低干扰与被干扰的情况发生，还可以避免因讯号短路而中断的问题发生。这些走线141可以通过联通柱或电磁耦合方式与RFIC芯片13电连接。
另外，所述阵列天线12可以通过基于多输入多输出(multiple-in multiple-out,MIMO)操作的这些天线元件121来发送或接收电磁波。由于使用各个天线元件121来实现MIMO操作，所以各个天线元件121在Tx(transport,发送)和Rx(receive,接收)模式下进行操作。
这些天线元件121在边框区112的具体排列方式，本申请实施例不予以限定。下面仅以图5～图9所示为例进行描述。
如图6所示，这些发送天线元件Tx和接收天线元件Rx均沿平行于显示面板11横边的方向(如图6中的x方向)排布，或者，如图7所示，这些发送天线元件Tx和接收天线元件Rx均沿平行于显示面板11竖边的方向(如图7中的y方向)排布。其中，任意相邻两个接收天线元件Rx的间距d3为电磁波半波长的整数倍，而相邻两个发送天线元件Tx的间距d1，以及相邻发送天线元件Tx和接收天线元件Rx的间距d2，本申请实施例并不限制其取值。当d1＝n*d3，且n为接收天线元件Rx的数量时，阵列天线12即可视为MIMO天线，具有良好的角度解析度。
这些发送天线元件Tx和接收天线元件Rx的极化方向相同，例如均可以为水平极化方向或者竖直极化方向，使得阵列天线12具有二位扫描功能，可以辨识来自左右或者上下两侧的电磁波讯号。
在另一实施例中，这些发送天线元件Tx和接收天线元件Rx中的一部分沿第一方向排布，另一部分沿第二方向排布，所述第一方向和第二方向相垂直，如图8所示，两个发送天线元件Tx均沿第二方向y排布，两个接收天线元件Rx沿第一方向x排布，剩余两个接收天线元件Rx沿第二方向y排布，第一方向x为水平方向，对应地，第二方向y为竖直方向。又如图9所示， 沿第一方向x排布有一个发送天线元件Tx和两个接收天线元件Rx，沿第二方向y排布有两个接收天线元件Rx和一个发送天线元件Tx。
在图8和图9所示的排布结构中，任意相邻两个接收天线元件Rx的间距d3为电磁波半波长的整数倍，任一个天线元件的长宽之比大于1，即长宽不同，例如水平排列的两个接收天线元件Rx的长度W3和宽度W2之比大于1，即W3/W2>1，竖直排列的两个发送天线元件Tx的长度W4和宽度W5之比大于1，即W4/W5>1。
这些发送天线元件Tx和接收天线元件Rx的极化方向相同，例如图9中空白箭头示出的极化方向为竖直极化方向，当然极化方向还可以均为水平极化方向，极化方向相同使得阵列天线12可以同时辨识来自左右两侧或上下两侧的电磁波讯号。
在图10所示的实施例中，这些发送天线元件Tx和接收天线元件Rx可以采用图8所示的排布方式，但是，这些发送天线元件Tx和接收天线元件Rx的极化方向不相同，例如，沿第二方向y排布的天线元件为空白箭头所示的竖直极化方向，而沿第一方向x排布的天线元件为空白箭头所示的水平极化方向，使得阵列天线12可以实现三维扫描功能，辨识来自上下左右的电磁波讯号，具有接收较大的讯号接收范围。
应理解，这些天线元件121在边框区112的还可以采用其他排列方式，另外，发送天线元件Tx和接收天线元件Rx各自的数量也并不限于图6～图10的示例性描述。为了进一步提高阵列天线12的辐射性能，这些天线元件121的表面可以涂敷有氟涂料，氟涂料在天线元件121上的应用能够提高阵列天线12的使用寿命和电讯可靠性。
尽管已经相对于一个或多个实现方式示出并描述了本申请，但本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本申请包括所有此修改和变型，并且由前述实施例的技术方案进行支撑。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在于执行所 述组件的指定功能(例如其在功能上是等价的)的任意组件(除非另外指示)，即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。
即，以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利用本说明书及附图内容所作的等效结构变换，例如各实施例之间技术特征的结合，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。
另外，在前述实施例的描述中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者多个特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。

Claims (10)

  1. 一种电子设备，包括显示面板，所述显示面板具有显示区和围绕于显示区外围的边框区，其中，所述电子设备还包括：
    阵列天线，设置于所述显示面板的出光侧，且位于所述边框区内；
    射频集成电路芯片；
    传输线，电连接所述射频集成电路芯片和阵列天线。
  2. 根据权利要求1所述的电子设备，其中，所述射频集成电路芯片设置于所述显示面板的背侧。
  3. 根据权利要求1所述的电子设备，其中，所述电子设备还包括柔性板，所述阵列天线、传输线和射频集成电路芯片承载于柔性板上，弯折后的柔性板的一端位于显示面板的出光侧，且位于所述边框区内，弯折后的柔性板的另一端位于所述显示面板的背侧，所述阵列天线承载于所述柔性板的背向所述显示面板的一侧上。
  4. 根据权利要求3所述的电子设备，其中，所述电子设备还包括用于驱动所述显示面板进行显示的主电路板，所述柔性板为电连接所述显示面板和主电路板的柔性印刷电路板。
  5. 根据权利要求3或4所述的电子设备，其中，对于未弯折的柔性板，在沿所述显示面板的出光方向上，所述柔性板、阵列天线、传输线和射频集成电路芯片依次分层设置。
  6. 根据权利要求5所述的电子设备，其中，所述未弯折的柔性板背向所述阵列天线的一侧，依次分层设置有第一导电层、绝缘胶层和第二导电层，所述第一导电层作为所述阵列天线的接地层，所述第二导电层作为所述射频集成电路芯片的接地层。
  7. 根据权利要求1所述的电子设备，其中，所述阵列天线包括极化方向相同的若干发送天线元件和接收天线元件，所述若干发送天线元件和接收天线元件均沿平行于显示面板侧边的方向排布，任意相邻两个所述接收天线元 件的间距为电磁波半波长的整数倍。
  8. 根据权利要求1所述的电子设备，其中，所述阵列天线包括极化方向相同的若干发送天线元件和接收天线元件，所述若干发送天线元件和接收天线元件中的一部分沿第一方向排布，另一部分沿第二方向排布，其中，所述第一方向和第二方向分别平行于所述显示面板的相垂直的两个侧边，任意相邻两个天线元件的间距为电磁波半波长的整数倍，任一个天线元件的长宽之比大于1。
  9. 根据权利要求1所述的电子设备，其中，所述阵列天线包括若干发送天线元件和接收天线元件，其中一部分沿第一方向排布，另一部分沿第二方向排布，其中，所述第一方向和第二方向分别平行于所述显示面板的相垂直的两个侧边，沿所述第一方向和第二方向排布的天线元件的极化方向不相同，任意相邻两个天线元件的间距为电磁波半波长的整数倍，任一个天线元件的长宽之比大于1。
  10. 根据权利要求1所述的电子设备，其中，所述传输线为带状线。
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