Display panel and wearable device
By setting a radiating layer and a ground layer for a transparent antenna in the smartwatch display panel, the interference problem of the display panel circuit to the transparent antenna is solved, improving signal stability and performance and meeting the requirements of high-performance communication.
Patent Information
- Application Number
- CN202520636041.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-03
AI Technical Summary
The display panel circuitry of existing smartwatches interferes with the transparent antenna, affecting its performance and making it difficult to meet the growing demand for high-performance communication.
A radiating layer and a ground layer for a transparent antenna are set in the display panel. The radiating layer is located on the side of the non-wiring layer away from the wiring layer, and the ground layer is located between the non-wiring layer and the wiring layer to shield the display panel circuit and other metal parts from interference signals.
It improves the signal transmission stability and performance of transparent antennas, meets the high-performance communication requirements of smartwatches, saves antenna design space, and keeps the display effect unaffected.
Smart Images

Figure CN223926775U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of wearable devices, and more specifically, relates to a display panel and a wearable device. Background Technology
[0002] Wearable devices are becoming increasingly smaller, while performance requirements are rising. Simultaneously, smartwatches are acquiring more and more functions and larger display panels, leading to less design space and greater difficulty in antenna design. For these reasons, some consumer electronics manufacturers are experimenting with transparent antennas integrated into the display panel. However, the display panel's own circuitry can interfere with the transparent antenna, affecting its performance. Utility Model Content
[0003] The purpose of this application is to provide a display panel and a wearable device to solve the technical problem in the prior art where the circuitry of the display panel itself interferes with the transparent antenna, affecting the performance of the transparent antenna.
[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a display panel, the display panel comprising:
[0005] Wiring layer;
[0006] Non-routing layer; The non-routing layer is set on top of the routing layer;
[0007] A transparent antenna includes a radiating layer and a ground layer that are matched to each other. The radiating layer is located on the side of the non-wiring layer away from the wiring layer, and the ground layer is located between the non-wiring layer and the wiring layer.
[0008] Optionally, the non-wiring layer includes a glass layer, a radiating layer is disposed on the side of the glass layer away from the wiring layer, and a ground layer is disposed on the side of the glass layer facing the wiring layer.
[0009] Optionally, the radiating layer includes a first transparent film and a first metal trace, the first metal trace being attached to one side of the first transparent film, and the side of the first transparent film having the first metal trace facing the non-wiring layer.
[0010] Optionally, the width of the first metal trace is less than or equal to 2 micrometers.
[0011] Optionally, the ground plane includes a second transparent film and a second metal trace, the second metal trace being attached to one side of the second transparent film, the side of the second transparent film having the second metal trace facing the non-wiring layer or the wiring layer.
[0012] Optionally, the width of the second metal trace is less than or equal to 2 micrometers.
[0013] Optionally, the radiating layer can be rectangular, square, or circular.
[0014] Alternatively, the strata may be rectangular, square, or circular.
[0015] Optionally, the transparent antenna includes at least one frequency band selected from cellular communication, WiFi, Bluetooth, satellite positioning, and satellite communication.
[0016] This application also provides a wearable device, which includes the aforementioned display panel.
[0017] Optionally, the wearable device also includes:
[0018] Housing; the display panel is mounted on the housing;
[0019] Motherboard; The motherboard is housed within the casing;
[0020] Antenna matching unit; The antenna matching unit is located on the motherboard and communicates with the display panel.
[0021] Antenna transceiver; the antenna matching unit is located on the motherboard, and the antenna transceiver and the antenna matching unit are connected for communication.
[0022] The beneficial effects of the display panel and wearable device provided in this application are as follows: Compared with the prior art, the display panel in this application adopts a transparent antenna, which can save antenna design space without affecting its appearance and optical characteristics of the display screen. The radiating layer of the transparent antenna is set on the side of the non-wiring layer away from the wiring layer, which can effectively radiate and receive electromagnetic signals. The ground layer is set between the non-wiring layer and the wiring layer. The ground layer can shield the interference signals generated by the wiring layer lines and other metal parts, so that the radiating layer can work in a relatively stable electromagnetic environment. The stability of its signal transmission is greatly improved, thereby improving the performance of the entire antenna. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of a display panel in one embodiment of this application;
[0025] Figure 2 This is a schematic diagram of the display panel in another embodiment of this application;
[0026] Figure 3 This is a schematic diagram of the radiation layer arrangement in an embodiment of this application;
[0027] Figure 4 This is a schematic diagram of the stratigraphic arrangement in one embodiment of this application;
[0028] Figure 5 This is a schematic diagram of the stratigraphic arrangement in another embodiment of this application;
[0029] Figure 6 This is a schematic diagram of the external plan of the wearable device in the embodiments of this application;
[0030] Figure 7 This is a schematic diagram of the internal structure of the wearable device in an embodiment of this application.
[0031] The following are the labeling elements in the figure:
[0032] Display panel 1; transparent antenna 11; radiating layer 111; first transparent film 1111; first metal trace 1112; ground layer 112; wiring layer 12; non-wiring layer 13; glass layer 131; housing 2; motherboard 3; antenna matching unit 31; antenna transceiver 32; battery 4; base 5. Detailed Implementation
[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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. Therefore, they should not be construed as limitations on this application.
[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0037] In the current technological development, the wearable device field, especially smartwatches, is undergoing significant changes. With continuous technological advancements, smartwatches are gradually becoming smaller in size. At the same time, market and user demands for performance are constantly increasing. Functionally, smartwatches have evolved from simple timekeeping tools into comprehensive devices integrating health monitoring, mobile payment, multi-band communication, navigation, and positioning. Furthermore, to enhance the user's visual experience, their display sizes are also continuously increasing.
[0038] These development trends have brought numerous challenges to the internal design of smartwatches. Due to the need to accommodate more functional modules and complex circuits, the internal design space of smartwatches is severely compressed. This limited space makes internal layout extremely difficult. Among these challenges, antenna design is particularly prominent. Traditional antenna design methods struggle to adapt to such a confined and complex spatial environment, posing a serious challenge to stable signal transmission.
[0039] To address this issue, some consumer electronics products, especially smartwatches, have begun experimenting with incorporating transparent antennas onto the display screen. Theoretically, transparent antennas can open up new pathways for signal transmission within a limited space, offering a feasible solution to the antenna design dilemmas of smartwatches. In practical applications, transparent antennas typically employ monopole, IFA, or loop antenna forms.
[0040] Monopole antennas are simple in structure, being linear conductors, with whip antennas being a common example. Transparent antennas are typically made of transparent conductive materials. Their advantages lie in their relatively easy design and manufacturing, and good radiation performance over a wide frequency band. For instance, in small wearable devices such as smartwatches, transparent monopole antennas can effectively receive and transmit signals in specific frequency bands, while their transparency does not affect the device's appearance or display.
[0041] IFA, or inverted-F antenna, is a miniaturized antenna named for its shape resembling an inverted letter "F". This type of antenna reduces size by bending the conductor while maintaining good performance. In transparent antenna applications, IFAs made from transparent conductive materials meet the requirements of device miniaturization while ensuring sufficient radiation efficiency and bandwidth. They are widely used in mobile devices such as smartphones and tablets, and are also an ideal form of transparent antenna for space-constrained wearable devices.
[0042] A loop antenna is a ring-shaped structure made of conductive material, and it is divided into single-turn and multi-turn loop antennas. Loop antennas have a certain directionality, which can enhance signal radiation or reception in a specific direction in some applications. In transparent antenna design, using transparent materials to fabricate loop antennas can achieve efficient signal transmission, and due to their ring structure, they can better adapt to the internal structure of some devices with special spatial layout requirements, while maintaining the transparency of the device's appearance.
[0043] While the aforementioned antennas can achieve a degree of transparency, the complexity of a smartwatch's internal structure, coupled with the influence of the display's own circuitry and other metal components such as the metal casing and buttons, presents significant challenges in practical applications. The display's own circuitry generates various electromagnetic signals during operation, which, like chaotic noise, intertwine and interfere with the signals transmitted by the transparent antenna. Simultaneously, the internal metal components reflect, scatter, and absorb the electromagnetic waves transmitted and received by the transparent antenna, altering their original propagation paths and intensities. In this complex electromagnetic environment, the performance of transparent antennas using the aforementioned antenna designs often falls short of ideal standards. Signal attenuation, distortion, and phase deviation occur during transmission, severely impacting the stability of the transparent antenna's signal transmission. Today, smartwatches offer increasingly sophisticated functions, requiring not only basic calls and text messaging but also high-speed data transmission capabilities such as online music playback, real-time navigation, and high-definition video calls. This places higher demands on the performance of transparent antennas. However, existing interference conditions prevent transparent antennas from meeting the growing high-performance communication needs of smartwatches, becoming one of the bottlenecks hindering their further development.
[0044] To address the aforementioned issues, this application provides a display panel 1. Please refer to [link / reference]. Figure 1 The display panel 1 provided in the embodiments of this application will now be described. The display panel 1 includes:
[0045] Wiring layer 12;
[0046] Non-routing layer 13; Non-routing layer 13 is disposed on routing layer 12;
[0047] Transparent antenna 11; Transparent antenna 11 includes a mutually matched radiating layer 111 and a ground layer 112, the radiating layer 111 is disposed on the side of the non-wiring layer 13 away from the wiring layer 12, and the ground layer 112 is disposed between the non-wiring layer 13 and the wiring layer 12.
[0048] Display panel 1 typically consists mainly of a wiring layer 12 and a non-wiring layer 13. Display panel 1 has a multi-layer structure. The wiring layer 12 refers to the layer structure where various circuit lines are arranged on the display screen. For example, the wiring layer 12 may include the lines in the display layer, which are responsible for transmitting the electrical signals required for display to various pixels and other components to achieve functions such as image display. The wiring layer 12 may also include a touch sensing layer, whose lines are responsible for detecting user touch input. The non-wiring layer 13 refers to the layer structure without wiring superimposed on the wiring layer 12, such as a glass layer 131, an anti-reflective layer, an anti-scratch layer, a polarizing film layer, etc. These layer structures are usually placed on top of the wiring layer 12, which is the outer layer of the wiring layer 12 in terms of the device, and achieve different effects through their own characteristics.
[0049] In this embodiment, the display panel 1 also includes a transparent antenna 11, which is further divided into a radiating layer 111 and a ground layer 112. The radiating layer 111 and the ground layer 112 are matched to achieve efficient energy transmission and coordinated radiation characteristics. The radiating layer 111 is located on the side of the non-wiring layer 13 opposite to the wiring layer 12. Its main function is to radiate and receive electromagnetic signals, and it is a key part of realizing the antenna communication function. The ground layer 112 is located between the non-wiring layer 13 and the wiring layer 12. In addition to reflecting signals, stabilizing radiation, and improving impedance matching, its existence is of great significance in this embodiment. In the traditional transparent antenna 11 design, the presence of the wiring layer 12 of the display screen itself and other metal parts inside the smartwatch will cause strong interference to the antenna signal. These interference sources will change the electromagnetic field distribution around the antenna, causing signal attenuation, distortion and other problems in signal transmission, thus making the antenna performance substandard.
[0050] However, in the display panel 1 of this embodiment, the ground layer 112 plays a crucial shielding role. The ground layer 112 can shield and guide interference signals generated by the wiring layer 12 and other metal parts, preventing them from directly affecting the normal operation of the radiating layer 111. In this way, the influence of the display screen's own wiring and other metal parts on the transparent antenna 11 is effectively eliminated. As a result, the radiating layer 111 can operate in a relatively stable electromagnetic environment, and its signal transmission stability is greatly improved, thereby enhancing the overall performance of the antenna. This allows the transparent antenna 11 to better meet the growing high-performance communication needs of smartwatches, such as more stable multi-band communication and more accurate positioning signal reception.
[0051] Furthermore, when the display panel 1 of this embodiment is used in various devices such as mobile phones and wearable devices, it can save antenna design space without affecting the appearance and optical characteristics of the display screen, thus creating better conditions for the design of other antennas and components.
[0052] Please see Figure 2 In some embodiments of this application, the non-wiring layer 13 includes a glass layer 131, a radiating layer 111 is disposed on the side of the glass layer 131 away from the wiring layer 12, and a ground layer 112 is disposed on the side of the glass layer 131 facing the wiring layer 12.
[0053] Glass layer 131 is a very common layer structure in display panel 1, and is usually a non-wiring layer 13. In this embodiment, the transparent antenna 11 is arranged using the non-wiring glass layer 131. Glass layer 131 has a certain mechanical strength, which can provide a stable support structure for the various parts of the transparent antenna 11 set on it, ensuring the stability of the entire display screen structure.
[0054] The radiating layer 111 is located on the side of the glass layer 131 facing away from the wiring layer 12, that is, closer to the outside space. This arrangement allows the radiating layer 111 to effectively radiate and receive electromagnetic signals in a relatively open environment. The ground layer 112 is located on the side of the glass layer 131 facing the wiring layer 12, and its role is crucial. When interference signals are generated by the wiring layer 12 of the display itself or other metal parts inside the smartwatch, the ground layer 112 can act as a shield. When interference signals encounter the ground layer 112 during propagation, the ground layer 112 can reflect, absorb, and guide these interference signals, preventing them from directly propagating to the radiating layer 111, thereby effectively eliminating the influence of these interference sources on the radiating layer 111.
[0055] From an overall perspective, this design, which explicitly defines the non-wiring layer 13 as the glass layer 131 and rationally positions the radiating layer 111 and the ground layer 112, significantly improves the performance of the transparent antenna 11. Through the isolation provided by the glass layer 131 and the shielding effect of the ground layer 112, the electromagnetic environment of the transparent antenna 11 is greatly improved, allowing the radiating layer 111 to operate stably and ensuring the stability and accuracy of signal transmission. This optimizes the communication functions of the smartwatch, enabling more stable frequency switching and signal strength maintenance during multi-band communication, and more accurate signal reception during positioning, thereby enhancing the overall user experience and functional performance of the smartwatch.
[0056] like Figure 2As shown, other protective or functional layers, such as anti-scratch layers, polarizing film layers, etc., can be provided on the side of the radiation layer 111 away from the non-wiring layer 13, which can protect the anti-scratch layer and polarizing film layer.
[0057] Please see Figure 3 In some embodiments of this application, the radiating layer 111 includes a first transparent film 1111 and a first metal trace 1112. The first metal trace 1112 is attached to one side of the first transparent film 1111, and the side of the first transparent film 1111 with the first metal trace 1112 faces the non-wiring layer 13.
[0058] In this embodiment, the radiating layer 111 mainly consists of a first transparent film 1111 and a first metal trace 1112. The first transparent film 1111 is the basic carrier of the radiating layer 111. It has the characteristic of being transparent and will not block the display content of the screen, thus ensuring the normal visual effect of the screen. At the same time, the first transparent film 1111 also provides an attachment surface for the first metal trace 1112, allowing the first metal trace 1112 to be attached to the first transparent film 1111 by means of electroplating, deposition, etc.
[0059] The first metal trace 1112 can conduct current. When a suitable electrical signal is input, a changing electromagnetic field is generated around it, thereby radiating the signal. Conversely, when an external electromagnetic signal acts on the metal trace, a current is induced within it, thus receiving the signal. The first metal trace 1112 is attached to one side of the first transparent film 1111, forming a patch structure, which can also reduce manufacturing difficulty to some extent. The transparent antenna 11 can be made of materials with high optical transmittance and low sheet resistance. For example, the first transparent film 1111 can be made of polyester film, polycarbonate, indium tin oxide, etc., and the first metal trace 1112 can be made of metal materials such as silver and copper. The first metal trace 1112 is the core component of the radiating layer 111 in realizing its electromagnetic signal radiation and reception functions.
[0060] The first transparent film 1111 has one side of the first metal trace 1112 facing the non-wiring layer 13. This arrangement places the first metal trace 1112 between the first transparent film 1111 and the non-wiring layer 13, thereby providing stable support and protection for it.
[0061] Please see Figure 4 and Figure 5 In some embodiments of this application, the ground layer 112 includes a second transparent film and a second metal trace, the second metal trace being attached to one side of the second transparent film, and the side of the second transparent film having the second metal trace facing the non-wiring layer 13 or the wiring layer 12.
[0062] In this embodiment, the ground layer 112 mainly consists of a second transparent film and a second metal trace. Similar to the first transparent film 1111, the second transparent film is transparent, thus preventing obstruction of the normal display screen and providing a substrate for the second metal trace to attach. It serves to protect the second metal trace and acts as a structural layer within the overall screen structure.
[0063] The second metal trace is attached to the second transparent film. The second metal trace is a key component of the ground layer 112 to achieve the function of shielding against interference. Metal has good conductivity. When there are external interference signals (such as electromagnetic interference generated by the circuitry of the display screen itself, or interference reflected or generated by other metal parts inside the smartwatch), the second metal trace can guide or absorb the interference signals through induced current, thereby reducing the impact of interference signals on the radiating layer 111 of the transparent antenna 11 and other circuit components.
[0064] Since the ground layer 112 is located inside the wiring layer 12, it inherently provides good support and protection. Therefore, the side of the second transparent film with the second metal trace can face either the non-wiring layer 13 or the wiring layer 12. Figure 4 As shown, the side of the second transparent film with the second metal trace can face the non-wiring layer 13. Thus, during fabrication, the radiating layer 111 and the ground layer 112 can be fabricated on both sides of the non-wiring layer 13 first, with the first metal trace 1112 sandwiched between the first transparent film 1111 and the non-wiring layer 13, and the second transparent film and non-wiring layer 13, providing good protection for both while ensuring the matching correspondence between the radiating layer 111 and the ground layer 112 in the transparent antenna 11. Then, the non-wiring layer 13, which combines the radiating layer 111 and the ground layer 112, can be assembled with the other layers of the display panel 1. Figure 5 As shown, the side of the second transparent film with the second metal trace can face the wiring layer 12. During assembly, the second transparent film with the second metal trace attached can be directly attached to the wiring layer 12.
[0065] In some embodiments of this application, the width of the first metal trace 1112 is less than or equal to 2 micrometers. In this embodiment, the width of the first metal trace 1112 is less than or equal to 2 micrometers. The reason for controlling the width of the first metal trace 1112 within this range is to achieve an effect that is invisible to the naked eye. Because the display screen is the interface through which the smartwatch directly interacts with the user, the integrity and aesthetics of its display are crucial. If the width of the first metal trace 1112 is large, the trace's existence will be clearly visible to the naked eye, affecting the visual effect of the screen display and potentially causing lines or patterns to interfere with the screen content, thus reducing the user experience. When the width is less than or equal to 2 micrometers, under normal viewing distance and visual conditions, the human eye cannot distinguish the existence of these metal traces, thereby ensuring the clarity and aesthetics of the screen display.
[0066] Similarly, in some embodiments of this application, the width of the second metal trace is less than or equal to 2 micrometers, thereby achieving an effect that is invisible to the naked eye.
[0067] The radiation layer 111 and the ground layer 112 can be designed into various shapes as needed. The shapes of the two can be the same or different. In some embodiments of this application, the radiation layer 111 is one of a rectangle, a square, and a circle; or, the ground layer 112 is one of a rectangle, a square, and a circle. Rectangles, squares, and circles are all common shapes, relatively simple in manufacturing processes, easy to achieve large-scale production, and can meet most needs.
[0068] In some embodiments of this application, the transparent antenna 11 includes at least one frequency band selected from cellular communication, WiFi, Bluetooth, satellite positioning, and satellite communication.
[0069] The transparent antenna 11 in this embodiment supports at least one frequency band from cellular communication, WiFi, Bluetooth, satellite positioning, and satellite communication. This means that the transparent antenna 11 can support one or more frequency bands. Among these frequency bands, cellular communication provides wearable devices with mobile network connectivity, enabling them to access the operator's network while on the move, just like a mobile phone, and realize voice calls, SMS sending and receiving, and high-speed data transmission. Different operators in different regions use different cellular communication frequency bands, such as the common GSM, CDMA, LTE, and 5G bands. The transparent antenna 11's support for cellular communication frequency bands allows wearable devices to access the internet and communicate independently without a mobile phone. WiFi is a widely used indoor wireless local area network technology, with common frequency bands being 2.4GHz and 5GHz. Bluetooth is mainly used for short-range device-to-device communication, and its operating frequency band is usually around 2.4GHz. Satellite positioning systems determine the device's geographical location by receiving satellite signals. These systems operate in specific frequency bands, such as the L1 band of GPS. The transparent antenna 11 supporting satellite positioning frequency bands enables wearable devices to achieve accurate positioning, playing an important role in outdoor sports, navigation, and other scenarios. Satellite communication enables global coverage, especially in remote areas or places without terrestrial network coverage. Satellite communication uses higher frequency bands, such as the Ka band. A transparent antenna 11 with satellite communication frequency band support allows wearable devices to maintain uninterrupted communication even in extreme environments.
[0070] Based on the aforementioned display panel 1, this application also provides a wearable device, please refer to... Figure 6 In some embodiments of this application, the wearable device includes the display panel 1 described in the above embodiments. Wearable devices using this display panel 1 integrate the transparent antenna 11 into the display panel 1, reducing the need for separate space reserved for the antenna and effectively solving the problem of limited internal space in wearable devices. This allows the wearable device to integrate more functional modules while remaining compact and lightweight, achieving higher space utilization. Due to the reasonable structural design of the transparent antenna 11, the display effect of the display panel 1 is guaranteed, providing users with a clear and comfortable visual experience. The special design of the transparent antenna 11 and the shielding effect of the ground layer 112 greatly improve the antenna performance, reduce interference, and enable the wearable device to maintain a stable communication connection in various complex environments. This wearable device can be a smartwatch, smart bracelet, smart glove, or other device with a display screen.
[0071] Please see Figure 7 In some embodiments of this application, the wearable device further includes:
[0072] Housing 2; display panel 1 is disposed on housing 2;
[0073] Motherboard 3; Motherboard 3 is located inside housing 2;
[0074] Antenna matching device 31; Antenna matching device 31 is mounted on motherboard 3 and is communicatively connected to display panel 1;
[0075] Antenna transceiver 32 and antenna matching unit 31 are mounted on motherboard 3, and antenna transceiver 32 and antenna matching unit 31 are communicatively connected.
[0076] The housing 2 is the external structure of the wearable device, serving to protect internal components and provide overall support. Taking a smartwatch as an example, the housing 2 typically includes a mid-frame and a bottom shell. The display panel 1 is located on the housing 2. As the main interface for user interaction with the device, it not only displays various information but also integrates special structures such as the transparent antenna 11, achieving integration of display and communication functions. The motherboard 3 is the core control component of the wearable device, located within the housing 2. It integrates key components such as the processor, memory, and storage, responsible for handling and coordinating various functions of the device, such as data processing and system operation. The antenna matching unit 31 is located on the motherboard 3 and communicates with the display panel 1. Its main function is to match the impedance between the antenna and the transceiver to ensure that the antenna can effectively radiate and receive electromagnetic signals. By adjusting the parameters of the antenna matching unit 31, the antenna performance can be optimized, improving signal transmission efficiency and quality. The antenna transceiver 32 is also located on the motherboard 3 and communicates with the antenna matching unit 31. It is responsible for converting electrical signals into electromagnetic signals and radiating them through the antenna, while simultaneously receiving electromagnetic signals from the antenna and converting them back into electrical signals.
[0077] The feeding mode of the transparent antenna 11 can be selected according to requirements, and different feeding modes will affect the antenna's performance and operation. Common feeding modes include direct feeding and coupled feeding. Direct feeding connects the signal source directly to the antenna's feeding point. This method is simple and direct, but may be affected by the antenna structure and the surrounding environment. Coupled feeding transmits the signal to the antenna through electromagnetic coupling, which has a certain degree of flexibility and anti-interference capability. In addition, wearable devices usually include a battery 4 to provide power to the wearable device and ensure that the device can operate normally. The flip watch also has a base 5 to enable the watch to flip.
[0078] The various components of wearable devices can be designed and arranged according to requirements, such as... Figure 7In the implemented embodiment, the wearable device is a smartwatch, which, from top to bottom, consists of a display panel 1, a motherboard 3, and a battery 4, all contained within the mid-frame of a housing 2. A transparent antenna 11 is disposed within the display panel 1, while an antenna matching unit 31 and an antenna transceiver 32 are disposed on the motherboard 3. When the watch needs to send signals, such as making calls, sending text messages, or connecting to WiFi, the antenna transceiver 32 first generates an electrical signal of the corresponding frequency. These electrical signals are transmitted to the antenna matching unit 31, which processes the signals and adjusts the signal impedance to match the impedance of the transparent antenna 11, reducing signal reflection and loss during transmission. The matched signal is then transmitted to the radiating layer 111 of the transparent antenna 11, where the radiating layer 111 converts the electrical signals into electromagnetic waves and radiates them into the surrounding space. A ground layer 112 is disposed between the non-wiring layer 13 and the wiring layer 12, serving to shield and guide electromagnetic waves, reducing interference from other components to the radiating layer 111, and enabling more efficient electromagnetic wave radiation. When external signals, such as communication signals from a base station or WiFi signals, are received by the radiating layer 111 of the transparent antenna 11, these electromagnetic waves are converted into electrical signals. These electrical signals are then impedance-matched by the antenna matching unit 31 before being transmitted to the antenna transceiver 32. The antenna transceiver 32 amplifies and demodulates the received signals, converting them into digital signals that the watch can recognize, and then transmits them to the motherboard 3 for further processing and analysis.
[0079] The motherboard, as the core control component of the watch, is responsible for coordinating the operation of all other parts. It not only controls the display panel to show the corresponding content but also manages the operation of the antenna transceiver and antenna matching unit, processing and responding accordingly to user commands and received external signals. The battery provides power to the entire watch, ensuring the normal operation of all components.
[0080] The following table is a summary of this application. Figure 7 The measured antenna efficiency table in the illustrated embodiment.
[0081]
[0082] As can be seen from the table above, the wearable device in this application embodiment has a wide antenna coverage frequency, relatively good measured efficiency, and small fluctuation in antenna efficiency value, resulting in a relatively stable signal.
[0083] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A display panel, characterized by, The display panel comprises: a wiring layer; a non-wiring layer; the non-wiring layer is arranged on the wiring layer; a transparent antenna; the transparent antenna comprises a radiation layer and a ground layer matched with each other, the radiation layer is arranged on a side of the non-wiring layer away from the wiring layer, and the ground layer is arranged between the non-wiring layer and the wiring layer.
2. The display panel of claim 1, wherein, The non-wiring layer comprises a glass layer, the radiation layer is arranged on a side of the glass layer away from the wiring layer, and the ground layer is arranged on a side of the glass layer facing the wiring layer.
3. The display panel of claim 1, wherein, The radiation layer comprises a first transparent film and a first metal trace, the first metal trace is attached to a side of the first transparent film, and the first transparent film has a side of the first metal trace facing the non-wiring layer.
4. The display panel of claim 3, wherein, The width of the first metal trace is less than or equal to 2 microns.
5. The display panel of any one of claims 1 to 4, wherein, The ground layer comprises a second transparent film and a second metal trace, the second metal trace is attached to a side of the second transparent film, and the second transparent film has a side of the second metal trace facing the non-wiring layer or the wiring layer.
6. The display panel of claim 5, wherein, The width of the second metal trace is less than or equal to 2 microns.
7. The display panel of claim 1, wherein, The radiation layer is one of a rectangle, a square, and a circle. Alternatively, the ground layer is one of a rectangle, a square, and a circle.
8. The display panel of any one of claims 1 to 4, wherein, The transparent antenna comprises at least one frequency band of cellular communication, WiFi, Bluetooth, satellite positioning, and satellite communication.
9. A wearable device, comprising: The wearable device comprises the display panel of any one of claims 1-8.
10. The wearable device of claim 9, wherein, The wearable device further comprises: a housing; the display panel is arranged on the housing; a mainboard; the mainboard is arranged in the housing; an antenna matching device; the antenna matching device is arranged on the mainboard, and the antenna matching device is in communication connection with the display panel; an antenna transceiver; the antenna transceiver is arranged on the mainboard, and the antenna transceiver is in communication connection with the antenna matching device.