Antenna device and head-mounted display equipment

Abstract

The utility model relates to an antenna device and head-mounted display equipment. The antenna device is applied to the head-mounted display equipment, the head-mounted display equipment comprises a display part and a wearing part, and the antenna device comprises a first radiation unit arranged on the display part and used for radiating and receiving electromagnetic waves in a first polarization direction; the second radiation unit is arranged on the wearing part and is used for radiating and receiving electromagnetic waves in a second polarization direction; wherein the first polarization direction and the second polarization direction form omnidirectional polarization, and compared with the mode that only the first radiation unit is used for receiving the electromagnetic waves, the antenna device can receive the electromagnetic waves from the mobile equipment in any direction, so that the signal receiving quality of the antenna device is improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to an antenna device and a head-mounted display device. Background Technology

[0002] Head-mounted displays (HUDs) receive electromagnetic waves transmitted by mobile devices through a radiating element to display the images transmitted by the mobile devices. However, in HUDs, the radiating element of the antenna device can only receive electromagnetic waves in a portion of the polarization direction, and since mobile devices typically move in different directions from the HUD, the antenna device suffers from poor signal reception quality. Utility Model Content

[0003] To overcome the problems existing in related technologies, this application provides an antenna device and a head-mounted display device.

[0004] According to a first aspect of the embodiments of this application, an antenna device is provided. The antenna device is applied to a head-mounted display device, the head-mounted display device including a display unit and a wearing unit, and the antenna device includes:

[0005] A first radiating unit is disposed on the display unit for radiating and receiving electromagnetic waves in a first polarization direction;

[0006] The second radiation unit is disposed on the wearing part for radiating and receiving electromagnetic waves in the second polarization direction;

[0007] The first polarization direction and the second polarization direction form omnidirectional polarization, and the antenna device is capable of receiving electromagnetic waves from mobile devices in any direction.

[0008] In some embodiments of this application, the antenna device further includes:

[0009] Radio frequency transceiver;

[0010] The signal processing circuit is communicatively connected to the radio frequency transceiver, the first radiating unit, and the second radiating unit.

[0011] In some embodiments of this application, the antenna device further includes:

[0012] A selection switch is communicatively connected between the signal processing circuit, the first radiating unit, and the second radiating unit. The selection switch is used to select whether the signal processing circuit is connected to the first radiating unit and / or the second radiating unit.

[0013] In some embodiments of this application, the selection switch further includes:

[0014] A fixed terminal is communicatively connected to the signal processing circuit.

[0015] The selection terminal is communicatively connected to the first radiation unit and the second radiation unit;

[0016] The control terminal controls the connection between the fixed terminal and the selection terminal to select the signal processing circuit to be connected to the first radiation unit and / or the second radiation unit.

[0017] In some embodiments of this application, the radio frequency transceiver includes a first radio frequency transceiver and a second radio frequency transceiver; the signal processing circuit includes a first signal processing circuit and a second signal processing circuit, wherein the first signal processing circuit is communicatively connected to the first radio frequency transceiver, and the second signal processing circuit is communicatively connected to the second radio frequency transceiver.

[0018] The first fixed terminal of the selection switch is communicatively connected to the first signal processing circuit, the second fixed terminal of the selection switch is communicatively connected to the second signal processing circuit, the first selection terminal of the selection switch is communicatively connected to a portion of the first radiation unit, the second selection terminal of the selection switch is communicatively connected to another portion of the first radiation unit, the third selection terminal of the selection switch is communicatively connected to a portion of the second radiation unit, and the fourth selection terminal of the selection switch is communicatively connected to another portion of the second radiation unit.

[0019] In some embodiments of this application, the radio frequency transceiver includes a first radio frequency transceiver and a second radio frequency transceiver; the signal processing circuit includes a first signal processing circuit and a second signal processing circuit, wherein the first signal processing circuit is communicatively connected to the first radio frequency transceiver, and the second signal processing circuit is communicatively connected to the second radio frequency transceiver.

[0020] The selection switch includes:

[0021] A first selection switch, the fixed end of the first selection switch is communicatively connected to the first signal processing circuit, the first selection end of the first selection switch is communicatively connected to a portion of the first radiation unit, and the second selection end of the first selection switch is communicatively connected to a portion of the second radiation unit.

[0022] The second selection switch has a fixed terminal that is communicatively connected to the second signal processing circuit, a first selection terminal that is communicatively connected to another part of the first radiation unit, and a second selection terminal that is communicatively connected to another part of the second radiation unit.

[0023] In some embodiments of this application, the second radiating unit is communicatively connected to the radio frequency transceiver via a flexible circuit section.

[0024] In some embodiments of this application, the antenna device further includes:

[0025] A processor is configured to detect the signal strength of the first radiating unit and the second radiating unit, so as to select the corresponding first radiating unit and / or second radiating unit according to the signal strength.

[0026] According to a second aspect of the embodiments of this application, a head-mounted display device is provided, the head-mounted display device including a display part, a wearing part, and an antenna device as described above.

[0027] In some embodiments of this application, the wearing part includes:

[0028] A strap, which is connected to the display unit;

[0029] The second radiating unit is disposed within the strap;

[0030] or,

[0031] A first strap, the first end of which is connected to the first end of the display unit;

[0032] A headrest portion, wherein a first end of the headrest portion is connected to a second end of the first strap;

[0033] The second strap has a first end connected to the second end of the headrest portion and a second end connected to the second end of the display portion.

[0034] The second radiation unit is disposed within the first strap and / or the second strap and / or the headrest portion.

[0035] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0036] The antenna device includes a first radiating element disposed on the display section and a second radiating element disposed on the wearable section. The first radiating element and the second radiating element form omnidirectional polarization. By selecting the first radiating element and the second radiating element, electromagnetic waves from any mobile device can be received. Compared with receiving electromagnetic waves only with the first radiating element, the signal reception quality of the antenna device is improved.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0039] Figure 1 This is a schematic diagram of the structure of a head-mounted display device according to an exemplary embodiment.

[0040] Figure 2 This is a schematic diagram of the structure of an antenna device according to an exemplary embodiment.

[0041] Figure 3 This is a schematic diagram of the structure of an antenna device according to another exemplary embodiment.

[0042] Figure 4 This is a schematic diagram of the structure of a selection switch according to an exemplary embodiment.

[0043] Figure 5 This is a schematic diagram of the structure of an antenna device according to another exemplary embodiment.

[0044] Figure 6 This is a schematic diagram of the structure of an antenna device according to another exemplary embodiment.

[0045] Figure 7 This is a schematic diagram of the structure of an antenna device according to another exemplary embodiment.

[0046] In the picture:

[0047] 10-Display unit; 20-Wearing unit; 31-First radiating unit; 32-Second radiating unit; 33-Auxiliary radiating unit; 41-RF transceiver; 42-Signal processing circuit; 43-Selection switch; 100-Computer equipment; 101-Computing unit; 102-ROM; 103-RAM; 104-Bus; 105-Input / output interface; 106-Input unit; 107-Output unit; 108-Storage unit; 109-Communication unit; 411-First RF transceiver; 412-Second RF transceiver; 421-First signal processing circuit; 422-Second signal processing circuit; 423-Third signal processing circuit; 424-Fourth signal processing circuit; 431-Fixed terminal; 432-Selection terminal; 433-Control terminal; FEM-Amplifier; SAW-First filter; BPF-Second filter; DPX-Duplexer. Detailed Implementation

[0048] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of methods consistent with some aspects of this invention as detailed in the appended claims. It should also be understood that the term "and / or" as used in this invention refers to and includes any or all possible combinations of one or more associated listed items.

[0049] When a mobile device captures a picture, the built-in antenna module converts the picture data into electromagnetic waves and sends them to a head-mounted display device. The head-mounted display device receives the electromagnetic waves transmitted by the mobile device through a radiating unit and displays the corresponding picture.

[0050] In related technologies, a head-mounted display device is provided, which includes a radiating unit disposed on the display section. However, since the display section is usually positioned in front of the user's face, when the mobile device moves behind or directly above the user, the quality of the electromagnetic waves received by the radiating unit is poor, and it may even be unable to receive the electromagnetic waves transmitted by the mobile device. Moreover, when the user walks or looks down, the radiating unit cannot be directly facing the drone, which also results in poor quality of the electromagnetic waves received by the radiating unit. The quality of the received electromagnetic waves affects the display effect of the head-mounted display device.

[0051] Based on this, this application provides an antenna device that, by providing a second radiating element in the wearing part, can receive electromagnetic waves from the mobile device when the user wears the head-mounted display device and is away from the mobile device. Compared to receiving electromagnetic waves only with the first radiating element, the antenna device can receive electromagnetic waves from the mobile device in any direction, thereby improving the signal reception quality of the antenna device.

[0052] An exemplary embodiment of this application provides an antenna device applied to a head-mounted display device, such as... Figure 1 As shown, the head-mounted display device includes a display unit 10 and a wearing unit 20. The antenna device includes a first radiating element 31 and a second radiating element 32. The first radiating element 31 is disposed on the display unit 10 and is used to radiate and receive electromagnetic waves in a first polarization direction. The second radiating element 32 is disposed on the wearing unit 20 and is used to radiate and receive electromagnetic waves in a second polarization direction. The first and second polarization directions form omnidirectional polarization, enabling the antenna device to receive electromagnetic waves from the mobile device in any direction.

[0053] In this embodiment, the antenna device includes a first radiating element disposed on the display section and a second radiating element disposed on the wearing section. By disposing of the second radiating element on the wearing section, the second radiating element can receive electromagnetic waves from the mobile device when the user wears the head-mounted display device and is away from the mobile device. Compared to receiving electromagnetic waves only with the first radiating element, the antenna device can receive electromagnetic waves from the mobile device in any direction, thereby improving the signal reception quality of the antenna device.

[0054] For example, the number of the first radiation unit 31 and the second radiation unit 32 can be one or more. When the first radiation unit 31 and the second radiation unit 32 are omnidirectional radiation units, they can radiate and receive electromagnetic waves in both the first polarization direction and the second polarization direction. That is, both the first radiation unit 31 and the second radiation unit 32 can receive electromagnetic waves from the mobile device in any direction. The number of the first radiation unit 31 and the second radiation unit 32 has little impact on the signal strength of the radiated and received electromagnetic waves. When the first radiation unit 31 and the second radiation unit 32 are directional radiation units, the first radiation unit 31 can only radiate and receive electromagnetic waves in the first polarization direction, and the second radiation unit 32 can only radiate and receive electromagnetic waves in the second polarization direction. The first radiation unit 31 and the second radiation unit 32 can jointly receive electromagnetic waves from the mobile device in any direction. That is, having only the first radiation unit 31 or the second radiation unit 32 may result in situations where electromagnetic waves cannot be radiated and received. The number and placement of the first radiation unit 31 and the second radiation unit 32 have a significant impact on the signal strength of the radiated and received electromagnetic waves.

[0055] For example, the first radiating element 31 can be a first antenna, the second radiating element 32 can be a second antenna, and the mobile device can be aerial photography equipment (such as aerial photography drones, airships, and other flying equipment used for aerial photography), shooting terminals (such as mobile phones, cameras, etc.). The display unit 10 is used to display the images transmitted by the mobile device.

[0056] In one embodiment, such as Figure 2 As shown, the radio frequency (RF) circuit includes an RF transceiver 41 and a signal processing circuit 42. The signal processing circuit 42 is communicatively connected to the RF transceiver 41, the first radiating unit 31, and the second radiating unit 32. The RF transceiver 41 is used to emit electromagnetic waves before processing and to receive electromagnetic waves after processing. The signal processing circuit 42 can perform filtering and amplification on the electromagnetic waves emitted by the RF transceiver 41 and received by the first and second radiating units 31 to avoid interference in the electromagnetic waves.

[0057] In this embodiment, the electromagnetic waves transmitted between the radio frequency transceiver and the first and second radiating units are processed by the signal processing circuit to avoid interference in the electromagnetic waves, thereby improving the signal transmission and reception quality of the antenna device.

[0058] For example, the signal processing circuit 42 can be directly connected to the first radiating unit 31 and the second radiating unit 32 without any other electrical components in between. Alternatively, they can be indirectly connected, with other electrical components in between.

[0059] In one embodiment, the antenna device further includes a selection switch 43. The selection switch 43 is communicatively connected between the signal processing circuit 42, the first radiating element 31, and the second radiating element 32, and is used to select whether the signal processing circuit 42 is connected to the first radiating element 31 and / or the second radiating element 32.

[0060] In this embodiment, the signal strengths of the first and second radiating units differ during the movement of the mobile device. To reduce the complexity of the radio frequency circuit structure, the first and second radiating units share the signal processing circuit and the radio frequency transceiver, requiring a selection switch to select the first and / or second radiating units. This selection switch allows the use of a radiating unit with higher signal strength for electromagnetic wave radiation and reception, avoiding the use of a radiating unit with lower signal strength, thereby improving the signal transmission and reception quality of the antenna device.

[0061] For example, when the signal strength of the first radiating unit 31 is detected to be greater than the signal strength of the second radiating unit 32, the selection switch 43 selects the signal processing circuit 42 to be connected to the first radiating unit 31. The signal processing circuit 42 can process the electromagnetic waves received by the first radiating unit 31 and transmit them to the radio frequency transceiver 41. The signal processing circuit 42 can also process the signals emitted by the radio frequency transceiver 41 and transmit them to the first radiating unit 31, which then radiates them to the mobile device.

[0062] For example, the radio frequency transceiver 41, the signal processing circuit 42, and the selection switch 43 may be disposed on the display unit 10 to prevent damage during the wearing of the head-mounted display device.

[0063] For example, such as Figure 3As shown, there can be multiple signal processing circuits. At least one signal processing circuit includes two amplifiers (FEMs), a first filter (SAW), a second filter (BPF), and a duplexer (DPX). The first and second terminals of both amplifiers (FEMs) are communicatively connected to the radio frequency transceiver 41. The third terminal of one amplifier (FEM) is communicatively connected to the first terminal of the first filter (SAW), and the third terminal of the other amplifier (FEM) is communicatively connected to the first terminal of the second filter (BPF). The second terminals of the first filter (SAW) and the second filter (BPF) are communicatively connected to the first and second terminals of the duplexer (DPX). The third terminal of the duplexer (DPX) is communicatively connected to the selection switch 43. The first filter (SAW) is used to filter electromagnetic waves in the 2.4 GHz band, allowing only electromagnetic waves in the 2.4 GHz band to pass through. The second filter (BPF) is used to filter electromagnetic waves in the 5.8 GHz band, allowing only electromagnetic waves in the 5.8 GHz band to pass through.

[0064] In one embodiment, such as Figure 4 As shown, the selection switch 43 includes a fixed terminal 431, a selection terminal 432, and a control terminal 433. The fixed terminal 431 is communicatively connected to the signal processing circuit 42. The selection terminal 432 is communicatively connected to the first radiation unit 31 and the second radiation unit 32. The control terminal 433 controls the conduction between the fixed terminal 431 and the selection terminal 432 to select whether the signal processing circuit 42 is connected to the first radiation unit 31 or the second radiation unit 32.

[0065] In this embodiment, the simple structure of the selection switch allows for controlled switching between the first and second radiating elements, reducing the number of electrical components in the signal processing circuit and thus lowering the complexity of the antenna device structure. Furthermore, when a radiating element with high signal strength is detected, the signal processing circuit can establish a communication connection with the high-signal-strength radiating element via the selection terminal of the selection switch, further reducing the complexity of antenna device control.

[0066] For example, when the signal strength of the first radiating unit 31 is detected to be greater than the signal strength of the second radiating unit 32, the control terminal 433 controls the fixed terminal 431 to conduct with the selection terminal 432, which is communicatively connected to the first radiating unit 31. When the signal strength of the first radiating unit 31 is detected to be less than the signal strength of the second radiating unit 32, the control terminal 433 controls the fixed terminal 431 to conduct with the selection terminal 432, which is communicatively connected to the second radiating unit 32. The control terminal 433 can communicate with a processor.

[0067] In one embodiment, such as Figure 5As shown, the radio frequency transceiver 41 includes a first radio frequency transceiver 411 and a second radio frequency transceiver 412. The signal processing circuit 42 includes a first signal processing circuit 421 and a second signal processing circuit 422. There are multiple first radiating units 31 and multiple second radiating units 32. The first signal processing circuit 421 is communicatively connected to the first radio frequency transceiver 411, and the second signal processing circuit 422 is communicatively connected to the second radio frequency transceiver 412. The first fixed terminal of the selection switch 43 is communicatively connected to the first signal processing circuit 421, the second fixed terminal of the selection switch 43 is communicatively connected to the second signal processing circuit 422, the first selection terminal of the selection switch 43 is communicatively connected to a portion of the first radiating units 31, the second selection terminal of the selection switch 43 is communicatively connected to another portion of the first radiating units 31, the third selection terminal of the selection switch 43 is communicatively connected to a portion of the second radiating units 32, and the fourth selection terminal of the selection switch 43 is communicatively connected to another portion of the second radiating units 32.

[0068] In this embodiment, since the mobile device may be located at different positions of the user during movement, multiple first radiating elements and multiple second radiating elements are provided, allowing the first and second radiating elements to also be located at different positions of the user. By selecting a switch to connect the antenna radiating element with the highest signal strength and the corresponding signal processing circuit, the signal transmission and reception quality of the antenna device is improved. Moreover, by setting a single selection switch, multiple radiating elements can be connected to the signal processing circuit, reducing the number of redundant electrical components in the signal processing circuit and thus reducing the complexity of the antenna device structure.

[0069] For example, there are two first radiation units 31 and two second radiation units 32. The signal strength of each first radiation unit 31 and each second radiation unit 32 is detected. Select switch 43 turns on the two radiation units with the highest signal strength among the first radiation unit 31 and the second radiation unit 32.

[0070] For example, by controlling the connection between the first fixed terminal and the first selected terminal, and between the second fixed terminal and the second selected terminal, the first signal processing circuit 421 is connected to the first radiating unit 31, and the second signal processing circuit 422 is connected to the first radiating unit 31. By controlling the connection between the first fixed terminal and the third selected terminal, and between the second fixed terminal and the second selected terminal, the first signal processing circuit 421 is connected to the second radiating unit 32, and the second signal processing circuit 422 is connected to the first radiating unit 31. By controlling the connection between the first fixed terminal and the first selected terminal, and between the second fixed terminal and the fourth selected terminal, the first signal processing circuit 421 is connected to the first radiating unit 31, and the second signal processing circuit 422 is connected to the second radiating unit 32. By controlling the connection between the first fixed terminal and the third selected terminal, and between the second fixed terminal and the fourth selected terminal, the first signal processing circuit 421 is connected to the second radiating unit 32, and the second signal processing circuit 422 is connected to the second radiating unit 32.

[0071] In one embodiment, the radio frequency transceiver 41 includes a first radio frequency transceiver 411 and a second radio frequency transceiver 412. The signal processing circuit 42 includes a first signal processing circuit 421 and a second signal processing circuit 422. The first signal processing circuit 421 is communicatively connected to the first radio frequency transceiver 411. The second signal processing circuit 422 is communicatively connected to the second radio frequency transceiver 412. The selection switch 43 includes a first selection switch and a second selection switch. The fixed terminal 431 of the first selection switch is communicatively connected to the first signal processing circuit 421, the first selection terminal of the first selection switch is communicatively connected to a portion of the first radiating units 31, and the second selection terminal of the first selection switch is communicatively connected to a portion of the second radiating units 32. The fixed terminal 431 of the second selection switch is communicatively connected to the second signal processing circuit 42, the first selection terminal of the second selection switch is communicatively connected to another portion of the first radiating units 31, and the second selection terminal of the second selection switch is communicatively connected to another portion of the second radiating units 32.

[0072] In this embodiment, since the mobile device may be located at different positions of the user during movement, multiple first radiating units and multiple second radiating units are configured so that the first and second radiating units can also be located at different positions of the user. Because the first and second radiating units are divided into two parts and located at different positions, signals can be transmitted and received correspondingly through two radio frequency transceivers and two signal processing circuits. By setting two selection switches to respectively activate the first signal processing circuit and the radiating unit, and the second signal processing circuit and the radiating unit, the antenna device can be divided into two systems for radiating and receiving electromagnetic waves, reducing mutual interference and thus improving the reliability of the antenna device.

[0073] It is understandable that the RF circuit may not include a selection switch. In this case, the RF transceiver 41 includes a first RF transceiver 411, a second RF transceiver 412, and a third RF transceiver. The signal processing circuit 42 includes a first signal processing circuit 421, a second signal processing circuit 422, and a third signal processing circuit. The first terminal of the first signal processing circuit 421 is communicatively connected to the first RF transceiver 411, and the second terminal of the first signal processing circuit 421 is communicatively connected to a portion of the first radiating unit 31. The first terminal of the second signal processing circuit 422 is communicatively connected to the second RF transceiver 412, and the second terminal of the second signal processing circuit 422 is communicatively connected to another portion of the first radiating unit 31. The first terminal of the third signal processing circuit is communicatively connected to the third RF transceiver, and the second terminal of the third signal processing circuit is communicatively connected to the second radiating unit 32.

[0074] In one embodiment, the second radiating unit 32 is communicatively connected to the radio frequency transceiver 41 via a flexible connection section.

[0075] In this embodiment, because the flexible electrical connection has good flexibility, it can be bent without being damaged when the user wears the head-mounted display device, thereby improving the reliability of the antenna assembly.

[0076] In one embodiment, the flexible electrical connection includes a flexible radio frequency cable or a flexible printed circuit board (FPC).

[0077] In this embodiment, since the flexible radio frequency cable and flexible circuit board have low loss, the loss of electromagnetic waves transmitted between the radio frequency transceiver and the second radiating unit can be reduced, thereby improving the efficiency of the antenna device.

[0078] In one embodiment, the antenna device further includes a processor. The processor is used to detect the signal strength of the first radiating element 31 and the second radiating element 32, so as to select the corresponding first radiating element 31 and / or second radiating element 32 according to the signal strength.

[0079] In this embodiment, the mobile device may be located at different positions of the user during movement. The quality of the electromagnetic waves received by the first and second radiating units differs depending on their position. By using a processor to detect the signal strength of the first and second radiating units respectively, and selecting the first and / or second radiating units with higher signal strength as the receiving units for electromagnetic waves, the signal reception quality of the antenna device is improved.

[0080] For example, the processor can communicate with an RF transceiver 41 and a selection switch 43. The RF transceiver 41 detects the signal strength of the first radiating unit 31 and the second radiating unit 32, and the selection switch 43 selects the corresponding first radiating unit 31 and / or second radiating unit 32. When the mobile device is in front of the user, the processor detects that the signal strength of the first radiating unit 31 is greater than the signal strength of the second radiating unit 32, and selects the first radiating unit 31 to receive the electromagnetic waves radiated by the mobile device. When the mobile device is behind the user, the processor detects that the signal strength of the second radiating unit 32 is greater than the signal strength of the first radiating unit 31, and selects the second radiating unit 32 to receive the electromagnetic waves radiated by the mobile device. In addition, when the mobile device and the user are in different relative directions, the processor can also select one or more radiating units with the highest signal strength from multiple second radiating units 32 and multiple first radiating units 31 to receive the electromagnetic waves radiated by the mobile device.

[0081] An exemplary embodiment of this disclosure provides an antenna device, such as... Figure 6 and Figure 7As shown, the antenna device includes two first radiating elements 31, two second radiating elements 32, two auxiliary radiating elements 33, a first radio frequency transceiver 411, a second radio frequency transceiver 412, a first signal processing circuit 421, a second signal processing circuit 422, a third signal processing circuit 423, a fourth signal processing circuit 424, and a selection switch 43. The two first radiating elements 31 and the two auxiliary radiating elements 33 are all located in the display section 10 of the head-mounted display device. The two second radiating elements 32 are all located in the wearing section 20 of the head-mounted display device. The first terminal of the first radio frequency transceiver 411 is communicatively connected to the first terminal of the first signal processing circuit 421, and the second terminal of the first signal processing circuit 421 is communicatively connected to the first fixed terminal of the selection switch 43. The first selection terminal of the selection switch 43 is communicatively connected to one of the first radiating elements 31, and the third selection terminal of the selection switch 43 is communicatively connected to one of the second radiating elements 32. The second terminal of the first radio frequency transceiver 411 is communicatively connected to the first terminal of the third signal processing circuit 423, and the second terminal of the third signal processing circuit 423 is communicatively connected to one of the auxiliary radiating elements 33. The first terminal of the second RF transceiver 412 is communicatively connected to the first terminal of the second signal processing circuit 422, and the second terminal of the second signal processing circuit 422 is communicatively connected to the second fixed terminal of the selection switch 43. The second selection terminal of the selection switch 43 is communicatively connected to another first radiating unit 31, and the fourth selection terminal of the selection switch 43 is communicatively connected to another second radiating unit 32. The second terminal of the second RF transceiver 412 is communicatively connected to the first terminal of the fourth signal processing circuit 424, and the second terminal of the fourth signal processing circuit 424 is communicatively connected to another auxiliary radiating unit 33. The first fixed terminal of the selection switch 43 can be turned on with any one of the first, second, third, and fourth selection terminals, and the second fixed terminal of the selection switch 43 can be turned on with any one of the first, second, third, and fourth selection terminals.

[0082] For example, electromagnetic waves can be received by at least two of the two first radiation units 31, two second radiation units 32, and two auxiliary radiation units 33.

[0083] For example, by providing two auxiliary radiating units 33, a third signal processing circuit 423, and a fourth signal processing circuit 424, the signal strength of the antenna device can be further enhanced.

[0084] For example, by reading the signal strengths of the two first radiating elements 31 and the two second radiating elements 32 in real time, the selection switch 43 selects the two radiating elements with the strongest signal strength as the radiating elements for receiving electromagnetic waves, thereby improving the signal reception quality of the antenna device. Since the two first radiating elements 31 are located in the display unit 10 and the two second radiating elements 32 are located in the wearing unit 20, when the mobile device is in front of the user, receiving electromagnetic waves through the two first radiating elements 31 improves the signal reception quality. When the mobile device is behind the user, receiving electromagnetic waves through the two second radiating elements 32 improves the signal reception quality. Furthermore, when the mobile device is located in other positions of the user, receiving electromagnetic waves through different combinations of the two first radiating elements 31, the two second radiating elements 32, and the two auxiliary radiating elements 33 also improves the signal reception quality.

[0085] An exemplary embodiment of this disclosure provides a head-mounted display device, such as... Figure 1 As shown, the head-mounted display device includes a display unit 10, a wearing unit 20, and an antenna device as described above.

[0086] In one embodiment, the wearing part 20 includes a strap. The strap is connected to the display part 10. The second radiation unit 32 is disposed within the strap.

[0087] In this embodiment, since the strap is located on the user's left, right, or rear side when the user wears the head-mounted display device, the range of electromagnetic waves received by the antenna device is expanded by placing the second radiating element on the strap. Furthermore, when the user moves away from the mobile device, electromagnetic waves from the mobile device are received through the second radiating element. Compared to receiving electromagnetic waves with the first radiating element, the signal reception quality of the antenna device is improved, thereby enhancing the display effect of the head-mounted display device.

[0088] For example, there are multiple second radiating units 32. The multiple second radiating units 32 are located on opposite sides inside the strap.

[0089] In one embodiment, the wearing part 20 includes a first strap, a second strap, and a headrest portion. A first end of the first strap is connected to a first end of the display part 10. A first end of the headrest portion is connected to a second end of the first strap. A first end of the second strap is connected to a second end of the headrest portion, and a second end of the strap is connected to a second end of the display part 10. A second radiation unit 32 is disposed within the first strap, the second strap, and / or the headrest portion.

[0090] In this embodiment, since the first strap, second strap, and headrest are not located in front of the user when wearing the head-mounted display device, the range of electromagnetic waves received by the antenna device is expanded by placing the second radiating unit within the first strap and / or the second strap and / or the headrest. Furthermore, when the mobile device is not located in front of the user, receiving electromagnetic waves from the mobile device through the second radiating unit improves the signal reception quality of the antenna device compared to receiving electromagnetic waves through the first radiating unit, thereby enhancing the display effect of the head-mounted display device.

[0091] For example, there are multiple second radiating units 32. Some of the second radiating units 32 are located on the first strap, and some of the second radiating units 32 are located on the second strap.

[0092] For example, there are multiple second radiating units 32. The multiple second radiating units are located on opposite sides inside the occipital region.

[0093] For example, there are multiple first radiating units 31. The multiple first radiating units 31 are located on opposite sides of the display unit 10.

[0094] For example, the number of first radiating elements 31 is multiple. Figure 6 As shown, a plurality of antenna sections are provided on the surface of the display unit 10. The number of antenna sections is plurality, and at least some of the antenna sections are symmetrically arranged on the surface of the display unit 10. A first radiating element 31 is provided within at least some of the antenna sections, and an auxiliary radiating element 33 is provided within at least some of the antenna sections.

[0095] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered illustrative only, and the true scope and spirit of the invention are indicated by the claims.

[0096] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. An antenna device, characterized by The antenna device is applied to a head-mounted display device, the head-mounted display device comprising a display part and a wearing part, and the antenna device comprising: a first radiation unit arranged on the display part and configured to radiate and receive electromagnetic waves of a first polarization direction; a second radiation unit arranged on the wearing part and configured to radiate and receive electromagnetic waves of a second polarization direction; wherein the first polarization direction and the second polarization direction form an omnidirectional polarization, and the antenna device is capable of receiving electromagnetic waves from a movable device in any direction.

2. The antenna device of claim 1, wherein, The antenna device further comprises: a radio frequency transceiver; a signal processing circuit, which is in communication connection with the radio frequency transceiver, the first radiation unit and the second radiation unit.

3. The antenna device of claim 2, wherein, The antenna device further comprises: a selection switch, which is in communication connection between the signal processing circuit, the first radiation unit and the second radiation unit, and is configured to select the signal processing circuit to be in conduction with the first radiation unit and / or the second radiation unit.

4. The antenna device of claim 3, wherein The selection switch further comprises: a fixed end in communication connection with the signal processing circuit; a selection end in communication connection with the first radiation unit and the second radiation unit; a control end configured to control the conduction between the fixed end and the selection end, so as to select the signal processing circuit to be in conduction with the first radiation unit and / or the second radiation unit.

5. The antenna device of claim 4, wherein, The radio frequency transceiver comprises a first radio frequency transceiver and a second radio frequency transceiver; the signal processing circuit comprises a first signal processing circuit and a second signal processing circuit, the first signal processing circuit being in communication connection with the first radio frequency transceiver, and the second signal processing circuit being in communication connection with the second radio frequency transceiver; a first fixed end of the selection switch being in communication connection with the first signal processing circuit, a second fixed end of the selection switch being in communication connection with the second signal processing circuit, a first selection end of the selection switch being in communication connection with a part of the first radiation unit, a second selection end of the selection switch being in communication connection with another part of the first radiation unit, a third selection end of the selection switch being in communication connection with a part of the second radiation unit, and a fourth selection end of the selection switch being in communication connection with another part of the second radiation unit.

6. The antenna device of claim 4, wherein, The radio frequency transceiver comprises a first radio frequency transceiver and a second radio frequency transceiver; the signal processing circuit comprises a first signal processing circuit and a second signal processing circuit, the first signal processing circuit being in communication connection with the first radio frequency transceiver, and the second signal processing circuit being in communication connection with the second radio frequency transceiver; The selection switch comprises: a first selection switch, a fixed end of the first selection switch being in communication connection with the first signal processing circuit, a first selection end of the first selection switch being in communication connection with a part of the first radiation unit, and a second selection end of the first selection switch being in communication connection with a part of the second radiation unit. A second selection switch, a fixed end of the second selection switch being in communication connection with the second signal processing circuit, a first selection end of the second selection switch being in communication connection with another part of the first radiation unit, and a second selection end of the second selection switch being in communication connection with another part of the second radiation unit.

7. The antenna device according to any one of claims 2 to 6, characterized in that The second radiation unit is in communication connection with the radio frequency transceiver through a flexible circuit part.

8. The antenna device according to any one of claims 1 to 6, characterized in that The antenna device further comprises: A processor for detecting signal strengths of the first radiation unit and the second radiation unit, and selecting corresponding first radiation unit and / or second radiation unit according to the signal strengths.

9. A head-mounted display device, comprising: The head-mounted display device comprises a display part, a wearing part, and the antenna device as claimed in any one of claims 1 to 8.

10. The head-mounted display device of claim 9, wherein, The wearing part comprises: A strap connected with the display part; wherein the second radiation unit is arranged in the strap; or, A first strap, a first end of the first strap being connected with a first end of the display part; A headrest part, a first end of the headrest part being connected with a second end of the first strap; A second strap, a first end of the second strap being connected with a second end of the headrest part, and a second end of the strap being connected with a second end of the display part; wherein the second radiation unit is arranged in the first strap and / or the second strap and / or the headrest part.

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