Head-mounted display device

Abstract

The invention provides a head-mounted display device. The head-mounted display device comprises a head-mounted display, a control device and an expansion battery. The control device comprises a device battery and a controller. The controller controls operation of the head-mounted display. The expansion battery and the control device are detachably assembled. After the expansion battery and the control device are assembled, the expansion battery supplies power to the control device and charges the device battery.

Description

Technical Field

[0001] This invention relates to a wearable electronic device, and more particularly to a head-mounted display device. Background Technology

[0002] Generally, a head-mounted display device includes a control unit and a head-mounted display. The control unit is located within the head-mounted display. The control unit drives or controls the head-mounted display to provide images. A battery within the control unit provides power to the control unit. It should be noted that, due to wearable requirements, the size or weight of the battery itself in the control unit is limited. The battery's operating time is also limited. Therefore, the usage time of the head-mounted display device is also limited. Summary of the Invention

[0003] The present invention provides a head-mounted display device that can extend the usage time of the head-mounted display device.

[0004] In one embodiment of the present invention, the head-mounted display device includes a head-mounted display, a control device, and a rechargeable battery. The control device includes a device battery and a controller. The controller is coupled to the device battery and the head-mounted display. The controller controls the operation of the head-mounted display. The rechargeable battery and the control device are detachably assembled. After the rechargeable battery and the control device are assembled, the rechargeable battery supplies power to the control device and charges the device battery.

[0005] Based on the above, after the expansion battery and control device are assembled, the expansion battery can power at least one of the controller and the device battery. Therefore, the usage time of the head-mounted display device can be extended. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention;

[0007] Figure 2 This is a schematic diagram of a control device and an extended battery according to an embodiment of the present invention;

[0008] Figure 3 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention;

[0009] Figure 4 This is a schematic diagram illustrating the use of a head-mounted display device according to an embodiment of the present invention;

[0010] Figure 5 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention;

[0011] Figure 6This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention;

[0012] Figure 7 This is a schematic diagram illustrating the use of a head-mounted display device according to an embodiment of the present invention.

[0013] Explanation of reference numerals in the attached figures

[0014] 100, 300, 400, 500, 500: Head-mounted display devices

[0015] 110, 410: Head-mounted displays

[0016] 120, 220: Control devices

[0017] 121: Device Battery

[0018] 122: Controller

[0019] 130, 230: Extended battery capacity

[0020] 231: Magnetic structure

[0021] 223: Heat dissipation module

[0022] 340, 440, 540: Head fixing element

[0023] 341, 441, 541: First fixing part

[0024] 342, 442, 561: Second fixing part

[0025] 343, 443: Straps

[0026] 350, 450, 550: Connecting cable

[0027] 560: Shoulder strap

[0028] P1, P2: Electrical energy

[0029] S110, S120, S130, S140, S210, S220, S230, S240: Steps

[0030] SD: Display signal Detailed Implementation

[0031] Some embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Component symbols used in the following description, when appearing in different drawings, are considered to be the same or similar components. These embodiments are only a part of the present invention and do not disclose all possible implementations of the invention. More precisely, these embodiments are merely examples in the patent claims of the present invention.

[0032] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the head-mounted display device 100 includes a head-mounted display 110, a control device 120, and a rechargeable battery 130. The head-mounted display device 100 may be, for example, a helmet or glasses for virtual reality (VR), augmented reality (AR), mixed reality (MR), extended reality (XR), or other head-mounted devices well known to those skilled in the art. The head-mounted display 110 may be any type of display module applied to the head-mounted display device 100.

[0033] In this embodiment, the control device 120 includes a device battery 121 and a controller 122. The controller 122 is coupled to the device battery 121 and the head-mounted display 110. The controller 122 controls the operation of the head-mounted display 110. For example, the controller 122 can use a display signal SD to control the head-mounted display 110 to display an image. The expansion battery 130 is detachably assembled with the control device 120. In this embodiment, after the expansion battery 130 and the control device 120 are assembled, the expansion battery 130 can power the control device 120 and charge the device battery 121.

[0034] For example, after the expansion battery 130 and the control device 120 are assembled, the expansion battery 130 can provide bypass power to the control device 120 and charge the device battery 121 at the same time.

[0035] It is worth mentioning that the controller 122 can receive either electrical energy P1 from the device battery 121 or electrical energy P2 from the expansion battery 130. Therefore, the usage time of the head-mounted display device 100 can be extended.

[0036] For example, during the use of the head-mounted display device 100, the control device 120 drives the head-mounted display 110 and determines the power level of the device battery 121. When the power level of the device battery 121 is low (e.g., the power level of the device battery 121 is below a low power threshold), the control device 120 can notify the user through the head-mounted display 110. Therefore, the user can assemble the expansion battery 130 into the control device 120. The controller 122 controls the power transmission path of the expansion battery 130's electrical energy P2. Thus, the expansion battery 130 supplies power to the controller 122 to maintain the normal operation of the head-mounted display device 100 and charges the device battery 121. In this embodiment, the expansion battery 130 can supply power to the controller 122 and charge the device battery 121 through the controller 122.

[0037] In some embodiments, when the device battery 121 is low on power, the extension battery 130 can power the controller 122 and directly charge the device battery 121.

[0038] When the device battery 121 has sufficient charge (e.g., the charge level of device battery 121 is above a high charge threshold), the controller 122 controls the expansion battery 130 to stop charging device battery 121 and continue to supply power to the controller 122. After the expansion battery 130 and the control device 120 are assembled, the controller 122 receives, for example, an assembly completion status signal to prioritize receiving power P2 from the expansion battery 130. In other words, during the assembly of the expansion battery 130 and the control device 120, device battery 121 is used as a backup battery. The controller 122 will only receive power P1 from device battery 121 when the charge level of the expansion battery 130 is insufficient.

[0039] Furthermore, when the expansion battery 130 is removed from the self-control device 120, the device battery 121 supplies power to the controller 122.

[0040] In this embodiment, the expansion battery 130 can be assembled with the control device 120 via magnetic force or any type of connector.

[0041] In this embodiment, the controller 122 is, for example, a central processing unit (CPU), or other programmable general-purpose or special-purpose microprocessor, digital signal processor (DSP), programmable controller, application-specific integrated circuit (ASIC), programmable logic device (PLD), or other similar device, circuit board, or combination of these devices.

[0042] In this embodiment, the device battery 121 is, for example, a lithium-ion (Li-ion) battery, a lithium-polymer (Li-polymer) battery, or other rechargeable batteries suitable for powering wearable devices, but the invention is not limited thereto. The expansion battery 130 is, for example, a portable power source well known to those skilled in the art, but the invention is not limited thereto. In this embodiment, the expansion battery 130 can provide wireless or wired power to the control device 120.

[0043] Please refer to Figure 2 , Figure 2This is a schematic diagram of a control device and an extended battery according to an embodiment of the present invention. In this embodiment, the control device 220 includes a device battery 121, a controller 122, and a heat dissipation module 223. The extended battery 230 includes a magnetic structure 231. The extended battery 230 can be assembled onto the control device 220 via the magnetic structure 231. Furthermore, the control device 220 also includes a magnetic structure (not shown). The extended battery 230 can be fixed to the magnetic structure via the magnetic structure 231.

[0044] In this embodiment, when the expansion battery 230 and the control device 220 are assembled, the heat dissipation module 223 dissipates heat from both the controller 122 and the expansion battery 230. Furthermore, when the expansion battery 230 and the control device 220 are assembled, the heat dissipation module 223 is located between the controller 122 and the expansion battery 230. Therefore, the heat dissipation module 223 can simultaneously dissipate heat from both the controller 122 and the expansion battery 230.

[0045] In this embodiment, the controller 122 is located between the heat dissipation module 223 and the device battery 121, but the present invention is not limited thereto.

[0046] For example, the heat dissipation module 223 may include a fan and / or multiple heat dissipation fins, but the present invention is not limited thereto.

[0047] In this embodiment, the power supply implementation for the device battery 121 and the expansion battery 230 is similar to that in... Figure 1 The implementation of the power supply method for the device battery 121 and the expansion battery 130 in the embodiment is not repeated here.

[0048] Please refer to Figure 1 as well as Figure 3 , Figure 3 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the head-mounted display device 300 includes a head-mounted display 110, a control device 120, a rechargeable battery 130, and a head-mounted fixing element 340. In this embodiment, the head-mounted fixing element 340 includes a first fixing portion 341 and a second fixing portion 342. The first fixing portion 341 is used to fix the head-mounted display 110. The second fixing portion 342 is used to fix the control device 120. In this embodiment, the first fixing portion 341 is located on a first side of the head-mounted fixing element 340. The second fixing portion 342 is located on a second side of the head-mounted fixing element 340. The second side is opposite to the first side.

[0049] Furthermore, the head-fixing element 340 also includes a strap 343. A first fixing part 341 is located on the front side of the strap 343 (i.e., the first side of the head-fixing element 340). A second fixing part 342 is located on the rear side of the strap 343 (i.e., the second side of the head-fixing element 340). Therefore, when a user wears the head-mounted display device 300, the head-mounted display 110 corresponds to the user's face. The control device 120 corresponds to the back of the user's head. The present invention is not limited to the embodiment of the head-fixing element 340 in this embodiment. In some embodiments, the head-fixing element 340 may be, for example, a helmet.

[0050] It is worth mentioning that the head-mounted display 110 is fixed to the first fixing part 341. The control device 120 is separated from the head-mounted display 110 and fixed to the second fixing part 342. Therefore, the weight on the first side of the head fixing element 340 is reduced. Furthermore, the control device 120 balances the center of gravity of the head-mounted display device 300 relative to the first side. In this way, the pressure on the user's face can be reduced during prolonged wear of the head-mounted display device 300, thereby achieving a comfortable user experience.

[0051] In this embodiment, the head-mounted display device 300 also includes a connection cable 350. The controller 122 can control the operation of the head-mounted display 110 via the connection cable 350 and the head-mounted fixing element 340. For example, the controller 122 can provide a display signal SD to the head-mounted display 110 via signal lines (not shown) in the connection cable 350 and the head-mounted fixing element 340 to control the head-mounted display 110. The controller 122 can receive the status of the head-mounted display 110 via the signal lines in the connection cable 350 and the head-mounted fixing element 340.

[0052] Please refer to Figure 1 , Figure 3 as well as Figure 4 , Figure 4 This is a schematic diagram illustrating the use of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the use of the head-mounted display device 300 can be divided into steps S110 to S140. In step S110, the control device 120 is fixed to the second fixing part 342. In step S120, the connecting wire 350 is connected between the control device 120 and the head fixing element 340. In step S130, the head-mounted display device 300 is worn on the user's head. The user can adjust the length and angle of the strap 343 of the head-mounted display device 300 to fit the user's head shape. After step S130, the head-mounted display 110 will be aligned with the user's face. The control device 120 will be aligned with the back of the user's head. In step S140, the user can begin using the head-mounted display device 300.

[0053] When the device battery 121 of the control device 120 is low on power, the control device 120 can notify the user via the head-mounted display 110. Therefore, the user can assemble an expansion battery 130 into the control device 120. Implementation details of the power supply for the expansion battery 130 are already provided. Figure 1 The embodiments are clearly illustrated and will not be repeated here. The expansion battery 130 can be assembled to the control device 120, for example, by magnetic attraction. Details of the assembly described above can be found in [reference needed]. Figure 2 Examples of implementations.

[0054] Please refer to Figure 5 , Figure 5 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the head-mounted display device 400 includes a head-mounted display 410, a control device 220, a rechargeable battery 230, a head-mounted fixing element 440, and a connecting cable 450. The head-mounted fixing element 440 includes a first fixing part 441, a second fixing part 442, and a strap 443. The first fixing part 441 is located on a first side of the head-mounted fixing element 440. The first fixing part 441 can cover at least a portion of the head-mounted display 410. The second fixing part 442 is located on a second side of the head-mounted fixing element 440. The second fixing part 442 can fix the control device 220 to the second side of the head-mounted fixing element 440. Embodiments of the control device 220 and the rechargeable battery 230 have been described previously. Figure 2 The embodiments are clearly illustrated and will not be repeated here.

[0055] Furthermore, a connecting cable 450 is connected between the control device 220 and the head-mounted component 440. Therefore, the controller 122 of the control device 220 can control the head-mounted display 410 via the connecting cable 450 and the signal lines (not shown) in the head-mounted component 440. The head-mounted display device 400 can be adapted to, for example... Figure 4 Steps S110 to S140.

[0056] Please refer to Figure 1 as well as Figure 6 , Figure 6 This is a schematic diagram of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the head-mounted display device 500 includes a head-mounted display 110, a control device 120, a rechargeable battery 130, a head-mounted fixing element 540, a connecting cable 550, and a shoulder strap 560. The head-mounted fixing element 540 includes a first fixing part 541. The first fixing part 541 is used to fix the head-mounted display 110. The first fixing part 541 is located on the front side of the head-mounted fixing element 540. In this embodiment, when the user wears the head-mounted display device 500, the head-mounted display 110 can be aligned with the user's face.

[0057] The shoulder strap 560 includes a second fixing part 561. The second fixing part 561 is used to fix the control device 120. When the user wears the shoulder strap 560, the second fixing part 561 can fix the control device 120 to the front of the user's torso. The present invention is not limited to the embodiment of the shoulder strap 560 in this embodiment.

[0058] The controller 122 can control the operation of the head-mounted display 110 via the connection cable 550 and the head fixation element 540. For example, the controller 122 can provide a display signal SD to the head-mounted display 110 via the signal lines (not shown) in the connection cable 550 and the head fixation element 540 to control the head-mounted display 110. The controller 122 can receive the status of the head-mounted display 110 via the signal lines in the connection cable 550 and the head fixation element 540.

[0059] Please refer to Figure 1 , Figure 6 as well as Figure 7 , Figure 7 This is a schematic diagram illustrating the use of a head-mounted display device according to an embodiment of the present invention. In this embodiment, the use of the head-mounted display device 500 can be divided into steps S210 to S240. In step S210, the control device 120 is fixed to the second fixing part 561 of the shoulder strap 560. In step S220, one end of the connecting wire 550 is connected to the control device 120. In step S230, the other end of the connecting wire 550 is connected to the head fixing element 540. In step S230, the head fixing element 540 is worn on the user's head. The user can adjust the length and angle of the head fixing element 540 to fit the user's head shape. After step S230, the head-mounted display 110 will be aligned with the user's face. The control device 120 will be aligned with the front of the user's torso. In step S240, the user can begin using the head-mounted display device 500. It should be noted that the control device 120 is aligned with the front of the user's torso. Therefore, users can use the head-mounted display device 500 while lying down.

[0060] When the device battery 121 of the control device 120 is low on power, the control device 120 can notify the user via the head-mounted display 110. Therefore, the user can assemble an expansion battery 130 into the control device 120. Implementation details of the power supply for the expansion battery 130 are already provided. Figure 1 The embodiments are clearly illustrated and will not be repeated here. The expansion battery 130 can be assembled to the control device 120, for example, by magnetic attraction. Details of the assembly described above can be found in [reference needed]. Figure 2 Examples of implementations.

[0061] In some embodiments, the control device 120 can be selectively fixed to the rear side of the head-mounted fixing element 540. Therefore, the head-mounted display device 500 can also be adapted to, for example... Figure 4 Steps S110 to S140.

[0062] In summary, when the extended battery and control device are assembled, the extended battery can power at least one of the controller and the device battery. This extends the usage time of the head-mounted display. In one embodiment, the head-mounted display is fixed to a first side of a head-mounting element. The control device is detached from the head-mounted display and fixed to a second side of the head-mounting element. Therefore, the weight on the first side of the head-mounting element is reduced. Furthermore, the weight of the control device balances the center of gravity of the head-mounted display relative to the first side. This reduces pressure on the user's face during prolonged use of the head-mounted display, resulting in a comfortable user experience. In another embodiment, the control device is detached from the head-mounted display and placed in front of the user's torso. Therefore, the user can use the head-mounted display while lying down.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A head-mounted display device, characterized in that, The head-mounted display device includes: Head-mounted displays; Control device, including: Device battery; and A controller, coupled to the device battery and the head-mounted display, configured to control the operation of the head-mounted display; and The extended battery is detachably assembled with the control device. When the extended battery and the control device are assembled, the extended battery supplies power to the control device and charges the device's battery.

2. The head-mounted display device according to claim 1, characterized in that, When the extended battery is removed from the control device, the device battery supplies power to the controller.

3. The head-mounted display device according to claim 1, characterized in that, During the assembly of the extended battery and the control device, the controller preferentially receives electrical energy from the extended battery.

4. The head-mounted display device according to claim 1, characterized in that, The extended battery includes: A magnetic structure, wherein the extended battery is assembled onto the control device via the magnetic structure.

5. The head-mounted display device according to claim 1, characterized in that, The control device further includes: A heat dissipation module is provided to dissipate heat from the controller and the extended battery when the extended battery and the control device are assembled.

6. The head-mounted display device according to claim 1, characterized in that, The head-mounted display device also includes: Head fixation elements, including: A first fixing part is configured to fix the head-mounted display; and The second fixing part is configured to fix the control device.

7. The head-mounted display device according to claim 6, characterized in that: The first fixing part is located on the first side of the head fixing element. The second fixing part is located on the second side of the head fixing element, and The second side is relative to the first side.

8. The head-mounted display device according to claim 6, characterized in that, The head-mounted display device also includes: A connecting cable, wherein the controller controls the operation of the head-mounted display via the connecting cable and the head-mounted fixing element.

9. The head-mounted display device according to claim 1, characterized in that, The head-mounted display device also includes: Head fixation elements, including: A first fixing part is configured to fix the head-mounted display; and Baby carriers, including: The second fixing part is configured to fix the control device.

10. The head-mounted display device according to claim 9, characterized in that, When the user wears the shoulder strap, the second fixing part secures the control device to the front of the user's torso.

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