Head-mounted display device and signal transmission system thereof

Abstract

The invention discloses a head-mounted display device and a signal transmission system thereof. The system comprises: a temple component, a frame component and a rotating shaft component; wherein the rotating shaft component comprises a photoelectric slip ring, wherein a stator optical fiber outlet and a rotor optical fiber outlet of the photoelectric slip ring are respectively connected one-to-one with a first optical fiber of the temple component and a second optical fiber of the frame component; a stator conductor outlet and a rotor conductor outlet of the photoelectric slip ring are respectively connected one-to-one with a first conductor of the temple component and a second conductor of the frame component; a rotor part and a stator part of the photoelectric slip ring are respectively fixedly connected with the outer shells of the temple component and the frame component; the invention realizes optical fiber transmission of data and electric power conductor transmission between the temple component and the frame component by setting the photoelectric slip ring, so that both the optical fiber transmission part and the conductor transmission part can be rotated at any angle, thereby avoiding signal attenuation of FPC or other wires caused by bending of the temple component, thereby improving the reliability and service life of the head-mounted display device.

Description

Technical Field

[0001] The present invention relates to the technical field of head-mounted display devices, and in particular to a signal transmission system of a head-mounted display device and the head-mounted display device. Background Art

[0002] At present, there are two main designs for the temples of mainstream head-mounted display devices on the market. One is a strap design, and the temples do not need to be bent; the other is similar to ordinary glasses, and the temples can be bent.

[0003] In the prior art, the transmission of signals between the temple components and the device body (i.e., the frame components) in a head-mounted display device is usually designed using a flexible printed circuit (FPC). However, the number of times a flexible printed circuit board can be bent is limited. Multiple bendings will cause irreversible damage to the flexible printed circuit board, thereby affecting the quality of signal transmission. The more signal lines there are, the greater the impact.

[0004] Therefore, how to avoid signal attenuation caused by the bending of the temple components of the FPC or other wires and improve the reliability and service life of the head-mounted display device is an urgent problem to be solved today. Summary of the invention

[0005] The purpose of the present invention is to provide a signal transmission system for a head-mounted display device and a head-mounted display device, so as to utilize a photoelectric slip ring to realize optical fiber data transmission and wire power transmission, thereby improving the reliability and service life of the head-mounted display device.

[0006] In order to solve the above technical problems, the present invention provides a signal transmission system for a head mounted display device, comprising: a temple component, a frame component and a rotating shaft component;

[0007] Wherein, the rotating shaft component includes a photoelectric slip ring, and the stator optical fiber outlet line and the rotor optical fiber outlet line of the photoelectric slip ring are respectively connected one-to-one with the first optical fiber of the temple component and the second optical fiber of the frame component, so as to transmit the optical signal between the temple component and the frame component; the stator wire outlet line and the rotor wire outlet line of the photoelectric slip ring are respectively connected one-to-one with the first wire of the temple component and the second wire of the frame component, so as to transmit the electric energy between the temple component and the frame component; the rotor part and the stator part of the photoelectric slip ring are respectively fixedly connected with the outer shells of the temple component and the frame component, so as to rotate the rotor part and the stator part accordingly when the temple component is folded and unfolded.

[0008] Optionally, the temple component includes: a mainboard module, a codec module, a first optical transceiver module, a first power supply module, the first optical fiber and a first wire;

[0009] Wherein, one end of the first optical fiber is connected to the first optical transceiver module, and the other end of the first optical fiber is connected to the stator optical fiber outlet or the rotor optical fiber outlet for transmitting optical signals;

[0010] The first optical transceiver module is used to complete the conversion between the optical signal transmitted by the first optical fiber and the first electrical signal; wherein the first electrical signal is the electrical signal transmitted between the first optical transceiver module and the encoding and decoding module;

[0011] The codec module is connected to the display device and / or the data acquisition device of the frame component through the first optical transceiver module, the first optical fiber and the rotating shaft component, and the codec module is used to complete the conversion between the data transmitted by the mainboard module and the first electrical signal, so that the mainboard module controls the display device and / or the data acquisition device through the data transmitted to the codec module;

[0012] The first power supply module is connected to the mainboard module, the codec module and the first optical transceiver module respectively. The first power supply module is connected to the stator wire output and the rotor wire output through the first wire to supply power to the temple component or to the temple component and the frame component.

[0013] Optionally, the frame component includes: a codec control module, a second optical transceiver module, a display device, a data acquisition device, a second power supply module, a second optical fiber and a second wire;

[0014] Wherein, one end of the second optical fiber is connected to the second optical transceiver module, and the other end of the second optical fiber is connected to the rotor optical fiber outlet or the stator optical fiber outlet for transmitting optical signals;

[0015] The second optical transceiver module is used to complete the conversion between the optical signal transmitted by the second optical fiber and the second electrical signal; wherein the second electrical signal is the electrical signal transmitted between the second optical transceiver module and the encoding and decoding control module;

[0016] The codec control module is connected to the mainboard module via the second optical transceiver module, the second optical fiber and the shaft component, and the codec control module is used to complete the conversion between the data transmitted by the display device and the data acquisition device and the second electrical signal, so as to realize the data transmission between the display device and the data acquisition device and the mainboard module respectively;

[0017] The second power supply module is respectively connected to the codec control module, the second optical transceiver module, the display device and the data acquisition device. The second power supply module is connected to the rotor wire output line and the rotor wire output line through the second wire to supply power to the frame component or to the frame component and the temple component.

[0018] Optionally, the stator part of the photoelectric slip ring is fixedly connected to the outer shell of the frame component, and the rotor part of the photoelectric slip ring is fixedly connected to the outer shell of the temple component; the stator optical fiber outlet is connected to the second optical fiber, the stator wire outlet is connected to the second wire, the rotor optical fiber outlet is connected to the first optical fiber, and the rotor wire outlet is connected to the first wire.

[0019] Optionally, the rotating shaft component further includes a front hinge and a rear hinge;

[0020] The stator part is fixedly connected to the front hinge, the rotor part is fixedly connected to the rear hinge, and the front hinge and the rear hinge are fixedly connected to the outer shells of the temple part and the frame part respectively.

[0021] Optionally, the front hinge includes a front lower hinge, and the rear hinge includes a rear upper hinge;

[0022] Among them, the front lower hinge includes a first hollow cylinder and a first hinge plate, and the stator part is fixedly installed in the first hollow cylinder by means of the first bottom surface of the first hollow cylinder; the first hinge plate is fixedly connected to the second bottom surface of the first hollow cylinder, and is used to be fixedly connected to the outer shell of the temple component or the frame component; the rear upper hinge includes a second hollow cylinder and a second hinge plate, and the rotor part is fixedly installed in the second hollow cylinder by means of the first bottom surface of the second hollow cylinder; the second hinge plate is fixedly connected to the second bottom surface of the second hollow cylinder, and is used to be fixedly connected to the outer shell of the frame component or the temple component.

[0023] Optionally, a stator wire outlet hole is provided on the side of the first hollow cylinder, and a rotor wire outlet hole is provided on the side of the second hollow cylinder.

[0024] Optionally, the rotor part is provided with an annular rotor fixing plate, and the rotor fixing plate is provided with a preset number of rotor fixing screw holes;

[0025] Among them, the rear upper hinge also includes an annular fixing plate arranged on the outside of the first bottom surface of the second hollow cylinder, the annular fixing plate is provided with the preset number of fixing screw holes, and the preset number of rotor fixing screws are inserted and installed between the rotor fixing screw holes.

[0026] Optionally, the front hinge further includes a front upper hinge, and the rear hinge includes a rear lower hinge;

[0027] Among them, the front upper hinge includes a first cylinder and a third hinge piece, one end of the first cylinder can be rotatably sleeved in the second hollow cylinder through the second bottom surface of the second hollow cylinder; the third hinge piece is fixedly connected to the other end of the first cylinder, and is used to be fixedly connected to the outer shell of the frame component or the temple component; the rear lower hinge includes a second cylinder and a fourth hinge piece, one end of the second cylinder can be rotatably sleeved in the first hollow cylinder through the second bottom surface of the first hollow cylinder; the fourth hinge piece is fixedly connected to the other end of the second cylinder, and is used to be fixedly connected to the outer shell of the temple component or the frame component.

[0028] In addition, the present invention also provides a head-mounted display device, including: a signal transmission system of the head-mounted display device as described above.

[0029] A signal transmission system for a head-mounted display device provided by the present invention comprises: a temple component, a frame component and a rotating shaft component; wherein the rotating shaft component comprises a photoelectric slip ring, wherein a stator optical fiber outlet line and a rotor optical fiber outlet line of the photoelectric slip ring are respectively connected one-to-one with a first optical fiber of the temple component and a second optical fiber of the frame component, so as to transmit an optical signal between the temple component and the frame component; a stator conductor outlet line and a rotor conductor outlet line of the photoelectric slip ring are respectively connected one-to-one with a first conductor of the temple component and a second conductor of the frame component, so as to transmit electric energy between the temple component and the frame component; a rotor part and a stator part of the photoelectric slip ring are respectively fixedly connected with the outer shells of the temple component and the frame component, so as to rotate the rotor part and the stator part correspondingly when the temple component is folded and unfolded;

[0030] It can be seen that the present invention realizes data optical fiber transmission and power wire transmission between the temple part and the frame part by setting the photoelectric slip ring in the shaft part, so that the optical fiber transmission part and the wire transmission part can be rotated at any angle, avoiding the signal attenuation of the FPC or other wires caused by the bending of the temple part, thereby improving the reliability and service life of the head-mounted display device; and using optical fiber to transmit signals improves the data transmission rate. In addition, the present invention also provides a head-mounted display device, which also has the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 A structural block diagram of a signal transmission system for a head mounted display device provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of a photoelectric slip ring provided by an embodiment of the present invention;

[0034] Figure 3 for Figure 2 A side view of the optoelectronic slip ring shown;

[0035] Figure 4 for Figure 2 A top view of the optoelectronic slip ring shown;

[0036] Figure 5 A component display diagram of a rotating shaft component provided by an embodiment of the present invention;

[0037] Figure 6 for Figure 2 The assembly diagram of the rotating shaft component shown;

[0038] Figure 7 for Figure 6 A side view of the shaft assembly shown;

[0039] Figure 8 A schematic diagram of the installation of a signal transmission system in a head mounted display device provided by an embodiment of the present invention;

[0040] Fig. 9 A schematic diagram of the position of the rotating shaft component when the temple component is folded in the head mounted display device provided by an embodiment of the present invention;

[0041] Fig.10 A schematic diagram of the rotation of the shaft component when the temple component is folded in the head mounted display device provided by an embodiment of the present invention;

[0042] Fig.11 A schematic diagram of the position of the rotating shaft component when the temple component is unfolded in the head mounted display device provided by an embodiment of the present invention;

[0043] Fig.12 A schematic diagram of the rotation of the shaft component when the temple component is unfolded in the head-mounted display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Please refer to Figure 1 , Figure 1 This is a structural block diagram of a signal transmission system of a head mounted display device provided by an embodiment of the present invention. The system may include: a temple component 10, a shaft component 20 and a frame component 30;

[0046] Among them, the rotating shaft component 20 includes a photoelectric slip ring 21, and the stator optical fiber outlet and the rotor optical fiber outlet of the photoelectric slip ring are respectively connected one-to-one with the first optical fiber 15 of the temple component 10 and the second optical fiber 31 of the frame component 30, so as to transmit the optical signal between the temple component 10 and the frame component 30; the stator wire outlet and the rotor wire outlet of the photoelectric slip ring 21 are respectively connected one-to-one with the first wire 16 of the temple component 10 and the second wire 32 of the frame component 30, so as to transmit the electric energy between the temple component 10 and the frame component 30; the rotor part and the stator part of the photoelectric slip ring 21 are respectively fixedly connected with the outer shells of the temple component 10 and the frame component 30, so as to rotate the rotor part and the stator part accordingly when the temple component 10 is folded and unfolded.

[0047] It can be understood that the rotating shaft component 20 in this embodiment can include an optoelectronic slip ring 21; the optoelectronic slip ring 21 can combine an optical fiber slip ring and a transmission electronic slip ring to form an optoelectronic hybrid merge ring, and the optical fiber part of the optoelectronic slip ring 21 is used to transmit high-speed data, and the slip ring wire part of the optoelectronic slip ring 21 is used to transmit electric power; and the optoelectronic slip ring 21 can be rotated at any angle, and the internal optical fiber and wire are always kept connected, such as Figures 2 to 4 As shown, the rotor part and the stator part of the optoelectronic slip ring 21 can rotate relative to each other at any angle, and the rotation will not affect the transmission of data and electric energy of the optical fiber and wire inside the optoelectronic slip ring 21.

[0048] Specifically, the optical fiber part and the conductor part of the optical slip ring 21 in the present embodiment can be connected from the rotor part and the stator part of the optical slip ring 21 respectively. Figures 2 to 4As shown, the optoelectronic slip ring 21 may include two stator outgoing wires (i.e., stator optical fiber outgoing wires and stator wire outgoing wires) and two rotor outgoing wires (i.e., rotor stator optical fiber outgoing wires and rotor stator wire outgoing wires). Accordingly, the stator optical fiber outgoing wires and rotor optical fiber outgoing wires of the optoelectronic slip ring 21 in this embodiment may be connected one-to-one with the optical fiber of the temple component 10 (i.e., the first optical fiber 15) and the optical fiber of the frame component 30 (i.e., the second optical fiber 31), respectively, for transmitting the optical signal between the temple component 10 and the frame component 30, so as to realize data transmission between the temple component 10 and the frame component 30; the stator wire outgoing wires and rotor wire outgoing wires of the optoelectronic slip ring 21 in this embodiment may be connected one-to-one with the wire of the temple component 10 (i.e., the first wire 16) and the wire of the frame component 30 (i.e., the second wire 32), respectively, for transmitting the electric energy between the temple component 10 and the frame component 30, so as to realize the electric energy power transmission between the temple component 10 and the frame component 30.

[0049] Correspondingly, the specific connection relationship between the two stator outgoing wires and the two rotor outgoing wires of the optoelectronic slip ring 21 in this embodiment and the temple component 10 and the frame component 30 can be set by the designer according to practical scenarios and user needs. For example, the rotor optical fiber outgoing wire and the rotor wire outgoing wire of the optoelectronic slip ring 21 can be connected to the first optical fiber 15 and the first wire 16 of the temple component 10, respectively, and the stator optical fiber outgoing wire and the stator wire outgoing wire of the optoelectronic slip ring 21 can be connected to the second optical fiber 31 and the second wire 32 of the frame component 30, respectively; or, the rotor optical fiber outgoing wire and the rotor wire outgoing wire of the optoelectronic slip ring 21 can be connected to the second optical fiber 31 and the second wire 32 of the frame component 30, respectively, and the stator optical fiber outgoing wire and the stator wire outgoing wire of the optoelectronic slip ring 21 can be connected to the first optical fiber 15 and the first wire 16 of the temple component 10, respectively. For the temple component 10 and the frame component 30, as long as the two stator output lines of the optoelectronic slip ring 21 can be connected to the same component (i.e., the temple component 10 or the frame component 30), the two rotor output lines of the optoelectronic slip ring 21 can be connected to another component (i.e., the frame component 30 or the temple component 10), this embodiment does not impose any restrictions on this.

[0050] It should be noted that, in this embodiment, the rotor part and the stator part of the optoelectronic slip ring 21 are respectively fixedly connected to the outer shells of the temple part 10 and the frame part 30, so that the temple part 10 and the frame part 30 can be foldably connected through the optoelectronic slip ring 21, that is, the temple part 10 connected to the frame part 30 can be folded (such as Fig. 9 as shown) and expanded (as Fig.11 As shown), when the temple component 10 is folded and unfolded, the rotor part and the stator part rotate accordingly, such as the folding angle of the temple component 10 can be the same as the rotation angle of the rotor part.

[0051] Correspondingly, in this embodiment, the component to which the rotor part of the photoelectric slip ring 21 is fixedly connected can be the same as the component to which the two rotor outgoing wires are connected, and the component to which the stator part of the photoelectric slip ring 21 is fixedly connected can be the same as the component to which the two stator outgoing wires are connected; for example, the stator part of the photoelectric slip ring 21 can be fixedly connected to the outer shell of the frame component 30, and the rotor part of the photoelectric slip ring 21 can be fixedly connected to the outer shell of the temple component 10; the stator optical fiber outgoing wire of the photoelectric slip ring 21 can be connected to the second optical fiber 31 of the frame component 30, the stator wire outgoing wire of the photoelectric slip ring 21 can be connected to the second wire 32 of the frame component 30, the rotor optical fiber outgoing wire of the photoelectric slip ring 21 can be connected to the first optical fiber 15 of the temple component 10, and the rotor wire outgoing wire of the photoelectric slip ring 21 can be connected to the first wire 16 of the temple component 10.

[0052] Specifically, the specific fixed connection method of the rotor part and the stator part of the optoelectronic slip ring 21 in this embodiment to the outer shell of the temple part 10 and the outer shell of the frame part 30, respectively, can be set by the designer according to practical scenarios and user needs. For example, the shaft part 20 can also include a front hinge and a rear hinge; wherein the stator part is fixedly connected to the front hinge, and the rotor part is fixedly connected to the rear hinge, and the front hinge and the rear hinge are fixedly connected to the outer shells of the temple part 10 and the frame part 30, respectively. In other words, the stator part can be fixed on the front hinge, and the stator part and the front hinge will not produce relative rotation; the rotor part can be fixed on the rear hinge, and the rotor part and the rear hinge will not produce relative rotation, and can rotate with the rotation of the rear hinge. The stator part can be fixedly connected to the outer shell of the frame part 30 or the temple part 10 through the front hinge, and the rotor part can be fixedly connected to the outer shell of the temple part 10 or the frame part 30 through the rear hinge; for example, the stator part can be fixedly connected to the outer shell of the frame part 30 (such as Figure 8 The rotor part can be fixedly connected to the outer shell of the temple part 10 through a rear hinge.

[0053] In this embodiment, the front hinge includes a front lower hinge, and the rear hinge includes a rear upper hinge; wherein the front lower hinge includes a first hollow cylinder and a first hinge piece, and the stator part is fixedly mounted in the first hollow cylinder by being sleeved on the first bottom surface of the first hollow cylinder; the first hinge piece is fixedly connected to the second bottom surface of the first hollow cylinder, and is used to be fixedly connected to the outer shell of the temple part 10 or the frame part 30; the rear upper hinge includes a second hollow cylinder and a second hinge piece, and the rotor part is fixedly mounted in the second hollow cylinder by being sleeved on the first bottom surface of the second hollow cylinder; the second hinge piece is fixedly connected to the second bottom surface of the second hollow cylinder, and is used to be fixedly connected to the outer shell of the frame part 30 or the temple part 10. That is to say, the front lower hinge in this embodiment can be sleeved and fixedly mounted on the side of the stator part, and the rear upper hinge can be sleeved and fixedly mounted on the side of the rotor part.

[0054] Correspondingly, this embodiment does not limit the specific sleeve fixing installation method of the front lower hinge and the stator part and the rear upper hinge and the rotor part. Figure 5 As shown, the rotor portion may be provided with an annular rotor fixing plate, and the annular fixing plate is provided with a preset number (such as Figure 5 Correspondingly, the rear upper hinge also includes an annular fixing plate arranged on the outside of the first bottom surface of the second hollow cylinder, the annular fixing plate is provided with a preset number of fixing screw holes, and a preset number of rotor fixing screws are inserted and installed between the rotor fixing screw holes and the fixing screw holes, so that the rear upper hinge can be sleeved and fixedly installed on the side of the rotor part. The side of the first hollow cylinder of the front lower hinge can be provided with a target number (such as 3 or 4) of stator fixing screw holes, and the front lower hinge can be sleeved on the side of the stator part and the stator fixing screws can be installed in the stator fixing screw holes to fix the front lower hinge to the stator part. Figure 6 As shown, the rear upper hinge and the rotor fixing plate can be fixed together with the rotor fixing screws, and the stator part and the front lower hinge can be fixed together with the stator fixing screws.

[0055] Furthermore, in order to ensure the stability of the connection between the rotating shaft component 20 and the outer shell of the temple component 10 and the frame component 30, as shown in FIG. Figure 5 and Figure 6 As shown, the front hinge in this embodiment may also include a front upper hinge, and the rear hinge may include a rear lower hinge; wherein, the front upper hinge includes a first cylinder and a third hinge piece, one end of the first cylinder is rotatably sleeved in the second hollow cylinder through the second bottom surface of the second hollow cylinder; the third hinge piece is fixedly connected to the other end of the first cylinder, and is used to be fixedly connected to the outer shell of the frame component 30 or the temple component 10; the rear lower hinge includes a second cylinder and a fourth hinge piece, one end of the second cylinder is rotatably sleeved in the first hollow cylinder through the second bottom surface of the first hollow cylinder; the fourth hinge piece is fixedly connected to the other end of the second cylinder, and is used to be fixedly connected to the outer shell of the temple component 10 or the frame component 30.

[0056] Correspondingly, for the two components, the temple component 10 and the frame component 30, the front upper hinge and the front lower hinge can be fixedly connected to the outer shell of the same component (i.e., the frame component 30 or the temple component 10), and the rear upper hinge and the rear lower hinge can be fixedly connected to the outer shell of the other component (i.e., the temple component 10 or the frame component 30); for example, the stator part can be fixedly connected to the outer shell of the frame component 30 through the front upper hinge and the front lower hinge, and the rotor part can be fixedly connected to the outer shell of the temple component 10 through the rear upper hinge and the rear lower hinge.

[0057] Further, such as Figure 7As shown, the side of the first hollow cylinder of the front lower hinge may be provided with a stator wire outlet hole, so that the stator optical fiber outlet and the stator wire outlet of the optoelectronic slip ring 21 can be connected with the optical fiber and the wire in the frame part 30 or the temple part 10 through the stator wire outlet hole; the side of the second hollow cylinder of the rear upper hinge is provided with a rotor wire outlet hole, so that the rotor optical fiber outlet and the rotor wire outlet of the optoelectronic slip ring 21 can be connected with the optical fiber and the wire in the temple part 10 or the frame part 30 through the rotor wire outlet hole.

[0058] Specifically, Figures 8 to 10 As shown, when the temple component 10 is folded, the front hinge and the rear hinge can be 90°, and the rotor part of the optoelectronic slip ring 21 rotates 90°; Fig.11 and Fig.12 As shown, when the temple component 10 is folded, the front hinge and the rear hinge can be 180°, and the rotor part of the optoelectronic slip ring 21 rotates 180°.

[0059] It should be noted that if Figure 1 As shown, the temple component 10 in this embodiment may include: a main board module 11, a codec module 12, a first optical transceiver module 14, a first power supply module 13, a first optical fiber 15 and a first wire 16; wherein, one end of the first optical fiber 15 is connected to the first optical transceiver module 14, and the other end of the first optical fiber 15 is connected to the stator optical fiber outlet or the rotor optical fiber outlet for transmitting optical signals; the first optical transceiver module 14 is used to complete the conversion between the optical signal transmitted by the first optical fiber 15 and the first electrical signal; wherein the first electrical signal is the electrical signal transmitted between the first optical transceiver module 14 and the codec module 12; the codec module 12 transmits the optical signal to the stator optical fiber through the first optical transceiver module 14. The first optical fiber 15 and the rotating shaft component 20 are connected to the display device 36 and / or the data acquisition device 37 of the frame component 30. The codec module 12 is used to complete the conversion between the data transmitted by the mainboard module 11 and the first electrical signal, so that the mainboard module 11 controls the display device 36 and / or the data acquisition device 37 through the data transmitted to the codec module 12; the first power supply module 13 is respectively connected to the mainboard module 11, the codec module 12 and the first optical transceiver module 14. The first power supply module 13 is connected to the stator wire outlet and the rotor wire outlet through the first wire 16, and is used to power the temple component 10 or the temple component 10 and the frame component 30.

[0060] That is to say, in this embodiment, the mainboard module 11 in the temple component 10 can be connected to the codec module 12. The mainboard module 11 can be the system operation and data processing center of the head-mounted display device. The data that needs to be displayed in the display device 36 of the frame component 30 can be sent to the codec module 12, and at the same time, the data from the codec module 12 (such as the data collected by the data acquisition device 37 in the display device 36) can be received and processed.

[0061] Correspondingly, the codec module 12 in this embodiment can be connected to the first optical transceiver module 14, and is used to encode the data from the mainboard module 11 according to the corresponding encoding rules, convert it into a corresponding electrical signal (i.e., a first electrical signal) and send it to the first optical transceiver module 14; decode the electrical signal (i.e., the first electrical signal) from the first optical transceiver module 14 using the corresponding decoding rules, convert it into corresponding data and send it to the mainboard module 11. In other words, the codec module 12 can complete the conversion between the data transmitted by the mainboard module 11 and the first electrical signal, so that the mainboard module 11 can be connected to the display device 36 and / or the data acquisition device 37 of the frame component 30 in turn through the codec module 12, the first optical transceiver module 14 and the first optical fiber 15 in the temple component 10, thereby realizing data transmission between the mainboard module 11 and the display device 36 and / or the data acquisition device 37, such as Figure 1 As shown, when the frame component 30 includes a display device 36 and a data acquisition device 37, the mainboard module 11 can be connected to the display device 36 and the data acquisition device 37 of the frame component 30 in sequence through the codec module 12, the first optical transceiver module 14 and the first optical fiber 15 in the temple component 10, so as to realize data transmission between the mainboard module 11 and the display device 36 and the data acquisition device 37 respectively.

[0062] Accordingly, the first optical transceiver module 14 in the present embodiment may be an optical transceiver module in the temple component 10. The first optical transceiver module 14 may receive data of an electrical signal from the codec module 12, convert the electrical signal into a corresponding optical signal, and send it to the second optical transceiver module 33 in the frame component 30 through the first optical fiber 15; receive an optical signal from the first optical fiber 15, convert the optical signal into a corresponding electrical signal, and send it to the codec module 12. In other words, the first optical transceiver module 14 may complete the conversion between the optical signal transmitted by the first optical fiber 15 and the first electrical signal, so that the data that the mainboard module 11 needs to send to the display device 36 and / or the data acquisition device 37 may be converted into an optical signal and sent to the frame component 30 through the first optical fiber 15, and the optical signal transmitted by the second optical fiber 31 corresponding to the data that the display device 36 and / or the data acquisition device 37 needs to send to the mainboard module 11 may be converted into corresponding data through the optoelectronic slip ring 21, the first optical transceiver module 14 and the codec module 12 in sequence and sent to the mainboard module 11.

[0063] Specifically, the first optical fiber 15 in this embodiment can be an optical fiber line set in the temple component 10, one end of the first optical fiber 15 can be connected to the optical fiber output line (such as the rotor optical fiber output line) of the optoelectronic slip ring 21, and the other end of the first optical fiber 15 can be connected to the first optical transceiver module 14 to transmit optical signals.

[0064] Correspondingly, the first power supply module 13 in the present embodiment can be a power supply module in the temple component 10. For example, when the temple component 10 of the head mounted display device supplies power to the frame component 30, the first power supply module 13 can use the battery in the temple component 10 or external power supply to supply power to the temple component 10 (such as the mainboard module 11, the codec module 12, and the first optical transceiver module 14) and supply power to the frame component 30 (such as the mainboard module 11, the codec module 12, and the first optical transceiver module 14) through the first wire 16. Figure 1 The second power supply module 34 in the head mounted display device supplies power to the temple component 10; when the frame component 30 of the head mounted display device supplies power to the temple component 10, the first power supply module 13 can use the electric energy transmitted by the frame component 30 through the first wire 16 to power the temple component 10 (such as the mainboard module 11, the codec module 12, and the first optical transceiver module 14).

[0065] Correspondingly, the first wire 16 in this embodiment can be an electric energy transmission line set in the temple component 10, one end of the first wire 16 can be connected to the wire output line (such as the rotor wire output line) of the optoelectronic slip ring 21, and the other end of the first optical fiber 15 can be connected to the first power supply module 13 to transmit electric energy power.

[0066] Among them, Figure 1 As shown, the frame component 30 in this embodiment may include: a codec control module 35, a second optical transceiver module 33, a display device 36, a data acquisition device 37, a second power supply module 34, a second optical fiber 31 and a second wire 32; wherein one end of the second optical fiber 31 is connected to the second optical transceiver module 33, and the other end of the second optical fiber 31 is connected to the rotor optical fiber outlet or the stator optical fiber outlet for transmitting optical signals; the second optical transceiver module 33 is used to complete the conversion between the optical signal transmitted by the second optical fiber 31 and the second electrical signal; wherein the second electrical signal is the electrical signal transmitted between the second optical transceiver module 33 and the codec control module 35; the codec control module 35 The second optical transceiver module 33 is connected to the main board module 11 through the second optical transceiver module 33, the second optical fiber 31 and the rotating shaft component 20. The codec control module 35 is used to complete the conversion between the data transmitted by the display device 36 and the data acquisition device 37 and the second electrical signal, so as to realize the data transmission between the display device 36 and the data acquisition device 37 and the main board module 11 respectively. The second power supply module 34 is respectively connected to the codec control module 35, the second optical transceiver module 33, the display device 36 and the data acquisition device 37. The second power supply module 34 is connected to the rotor wire outlet and the rotor wire outlet through the second wire 32, and is used to supply power to the frame component 30 or to the frame component 30 and the temple component 10.

[0067] That is to say, the second optical transceiver module 33 in the present embodiment can be an optical transceiver module in the frame component 30. The second optical transceiver module 33 can receive the data signal (i.e., optical signal) transmitted by the second optical fiber 31, convert the optical signal into an electrical signal (i.e., second electrical signal), and send it to the codec control module 35; receive the electrical signal (i.e., second electrical signal) from the codec control module 35, convert the electrical signal into an optical signal, and send it to the first optical transceiver module 14 of the temple component 10 through the second optical fiber 31. That is to say, the second optical transceiver module 33 can complete the conversion between the optical signal transmitted by the second optical fiber 31 and the second electrical signal, so that the data that the display device 36 and the data collector need to send to the main board module 11 of the temple component 10 can be converted into an optical signal and sent to the temple component 10 through the second optical fiber 31, and the optical signal transmitted by the first optical fiber 15 corresponding to the data that the main board module 11 needs to send to the display device 36 and the data collector can be converted into corresponding data through the optoelectronic slip ring 21, the second optical transceiver module 33 and the codec control module 35 in sequence and sent to the display device 36 and the data acquisition device 37.

[0068] Specifically, the second optical fiber 31 in this embodiment can be an optical fiber line arranged in the mirror frame component 30, one end of the second optical fiber 31 can be connected to the optical fiber outlet of the optoelectronic slip ring 21 (such as the stator optical fiber outlet), and the other end of the second optical fiber 31 can be connected to the second optical transceiver module 3322 to transmit optical signals.

[0069] Accordingly, the codec module 12 in this embodiment can be connected to the second optical transceiver module 33, and is used to receive the display data transmitted in the form of the second electrical signal from the second optical transceiver module 33, decode it according to the corresponding decoding rules, and send the display data content to the display device 36; receive the data from the data acquisition device 37, encode it according to the corresponding encoding rules, and transmit the data to the second optical transceiver module 33. In other words, the codec control module 35 can complete the conversion between the data transmitted by the display device 36 and the data acquisition device 37 and the second electrical signal, and realize the data transmission between the display device 36 and the data acquisition device 37 and the main board module 11.

[0070] Specifically, the display device 36 in this embodiment can be a device for displaying the received data to be displayed; the data acquisition device 37 in this embodiment can be a device for collecting environmental data. This embodiment does not limit the specific device types of the display device 36 and the data acquisition device 37. For example, the display device 36 can include an OLED (organic light emitting diode) screen and / or an optical waveguide display; the data acquisition device 37 can include any one or more of a camera, an ambient light sensor, a temperature and humidity sensor, and a PPG (photoplethysmography) sensor.

[0071] Correspondingly, the second power supply module 34 in this embodiment can be a power supply module in the frame component 30. For example, when the temple component 10 of the head-mounted display device supplies power to the frame component 30, the second power supply module 34 can supply power to the frame component 30 (such as the second optical transceiver module 33, the codec control module 35, the display device 36 and the data acquisition device 37) through the power transmission of the second wire 32. When the frame component 30 of the head-mounted display device supplies power to the temple component 10, the second power supply module 34 can use the battery in the frame component 30 or external power supply to supply power to the frame component 30 and supply power to the temple component 10 through the second wire 32.

[0072] Correspondingly, the second wire 32 in this embodiment can be an electric energy transmission line set in the frame component 30, one end of the second wire 32 can be connected to the wire output line (such as the stator wire output line) of the optoelectronic slip ring 21, and the other end of the first optical fiber 15 can be connected to the second power supply module 34 to transmit electric energy power.

[0073] It should be noted that this embodiment is demonstrated by taking the signal transmission system composed of a frame component 30 and a temple component 10 in a head-mounted display device as an example. The shell connection and signal transmission between the frame component 30 and the other temple component can be implemented in the same or similar manner as the system provided in this embodiment, and this embodiment does not impose any restrictions on this.

[0074] In the present embodiment, the embodiment of the present invention realizes data fiber optic transmission and power wire transmission between the temple component 10 and the frame component 30 by setting the photoelectric slip ring 21 in the shaft component 20, so that the optical fiber transmission part and the wire transmission part can be rotated at any angle, avoiding signal attenuation of the FPC or other wires after the temple component 10 is bent, thereby improving the reliability and service life of the head-mounted display device; and using optical fiber to transmit signals improves the data transmission rate.

[0075] Corresponding to the above system embodiment, an embodiment of the present invention further provides a head-mounted display device. The head-mounted display device described below and the signal transmission system of the head-mounted display device described above can refer to each other.

[0076] A head-mounted display device includes: a signal transmission system for the head-mounted display device provided by the above embodiment.

[0077] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the head-mounted display device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0078] The above is a detailed introduction to a signal transmission system of a head-mounted display device and a head-mounted display device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A signal transmission system for a head mounted display device, characterized in that: include: Temple parts, frame parts and shaft parts; Wherein, the rotating shaft component comprises a photoelectric slip ring, the stator optical fiber outlet line and the rotor optical fiber outlet line of the photoelectric slip ring are respectively connected one-to-one with the first optical fiber of the temple component and the second optical fiber of the frame component, so as to transmit the optical signal between the temple component and the frame component; the stator conductor outlet line and the rotor conductor outlet line of the photoelectric slip ring are respectively connected one-to-one with the first conductor of the temple component and the second conductor of the frame component, so as to transmit the electric energy between the temple component and the frame component; the rotor part and the stator part of the photoelectric slip ring are respectively fixedly connected with the outer shells of the temple component and the frame component, so as to rotate the rotor part and the stator part correspondingly when the temple component is folded and unfolded; The rotating shaft component also includes a front hinge and a rear hinge; Wherein, the stator part is fixedly connected to the front hinge, the rotor part is fixedly connected to the rear hinge, and the front hinge and the rear hinge are fixedly connected to the outer shells of the temple component and the frame component respectively; The front hinge comprises a front lower hinge, and the rear hinge comprises a rear upper hinge; Wherein, the front lower hinge comprises a first hollow cylinder and a first hinge piece, the stator part is fixedly installed in the first hollow cylinder by sleeve-engaging the first bottom surface of the first hollow cylinder; the first hinge piece is fixedly connected to the second bottom surface of the first hollow cylinder, and is used to be fixedly connected to the outer shell of the temple component or the frame component; the rear upper hinge comprises a second hollow cylinder and a second hinge piece, the rotor part is fixedly installed in the second hollow cylinder by sleeve-engaging the first bottom surface of the second hollow cylinder; the second hinge piece is fixedly connected to the second bottom surface of the second hollow cylinder, and is used to be fixedly connected to the outer shell of the frame component or the temple component; A stator wire outlet hole is arranged on the side of the first hollow cylinder, and a rotor wire outlet hole is arranged on the side of the second hollow cylinder.

2. The signal transmission system for a head mounted display device according to claim 1, characterized in that: The temple components include: a mainboard module, a codec module, a first optical transceiver module, a first power supply module, the first optical fiber and a first wire; Wherein, one end of the first optical fiber is connected to the first optical transceiver module, and the other end of the first optical fiber is connected to the stator optical fiber outlet or the rotor optical fiber outlet for transmitting optical signals; The first optical transceiver module is used to complete the conversion between the optical signal transmitted by the first optical fiber and the first electrical signal; wherein the first electrical signal is the electrical signal transmitted between the first optical transceiver module and the encoding and decoding module; The codec module is connected to the display device and / or the data acquisition device of the frame component through the first optical transceiver module, the first optical fiber and the rotating shaft component, and the codec module is used to complete the conversion between the data transmitted by the mainboard module and the first electrical signal, so that the mainboard module controls the display device and / or the data acquisition device through the data transmitted to the codec module; The first power supply module is connected to the mainboard module, the codec module and the first optical transceiver module respectively. The first power supply module is connected to the stator wire output and the rotor wire output through the first wire to supply power to the temple component or to the temple component and the frame component.

3. The signal transmission system for a head mounted display device according to claim 2, characterized in that: The frame components include: a codec control module, a second optical transceiver module, a display device, a data acquisition device, a second power supply module, a second optical fiber and a second wire; Wherein, one end of the second optical fiber is connected to the second optical transceiver module, and the other end of the second optical fiber is connected to the rotor optical fiber outlet or the stator optical fiber outlet for transmitting optical signals; The second optical transceiver module is used to complete the conversion between the optical signal transmitted by the second optical fiber and the second electrical signal; wherein the second electrical signal is the electrical signal transmitted between the second optical transceiver module and the encoding and decoding control module; The codec control module is connected to the mainboard module via the second optical transceiver module, the second optical fiber and the shaft component, and the codec control module is used to complete the conversion between the data transmitted by the display device and the data acquisition device and the second electrical signal, so as to realize the data transmission between the display device and the data acquisition device and the mainboard module respectively; The second power supply module is respectively connected to the codec control module, the second optical transceiver module, the display device and the data acquisition device. The second power supply module is connected to the rotor wire output line and the rotor wire output line through the second wire to supply power to the frame component or to the frame component and the temple component.

4. The signal transmission system for a head mounted display device according to claim 2, characterized in that: The stator part of the photoelectric slip ring is fixedly connected to the outer shell of the frame component, and the rotor part of the photoelectric slip ring is fixedly connected to the outer shell of the temple component; the stator optical fiber outlet is connected to the second optical fiber, the stator wire outlet is connected to the second wire, the rotor optical fiber outlet is connected to the first optical fiber, and the rotor wire outlet is connected to the first wire.

5. The signal transmission system for a head mounted display device according to claim 1, characterized in that: The rotor part is provided with an annular rotor fixing plate, and the rotor fixing plate is provided with a preset number of rotor fixing screw holes; Among them, the rear upper hinge also includes an annular fixing plate arranged outside the first bottom surface of the second hollow cylinder, the annular fixing plate is provided with the preset number of fixing screw holes, and the preset number of rotor fixing screws are inserted and installed between the rotor fixing screw holes.

6. The signal transmission system for a head mounted display device according to claim 1, characterized in that: The front hinge further comprises a front upper hinge, and the rear hinge comprises a rear lower hinge; Among them, the front upper hinge includes a first cylinder and a third hinge piece, one end of the first cylinder can be rotatably sleeved in the second hollow cylinder through the second bottom surface of the second hollow cylinder; the third hinge piece is fixedly connected to the other end of the first cylinder, and is used to be fixedly connected to the outer shell of the frame component or the temple component; the rear lower hinge includes a second cylinder and a fourth hinge piece, one end of the second cylinder can be rotatably sleeved in the first hollow cylinder through the second bottom surface of the first hollow cylinder; the fourth hinge piece is fixedly connected to the other end of the second cylinder, and is used to be fixedly connected to the outer shell of the temple component or the frame component.

7. A head mounted display device, characterized in that: include: A signal transmission system for a head mounted display device as claimed in any one of claims 1 to 6.

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