CN108345109B

CN108345109B - Head-mounted virtual reality display device

Info

Publication number: CN108345109B
Application number: CN201710061176.1A
Authority: CN
Inventors: 陈世昌; 莫立邦; 廖家淯; 黄献霆; 黄启峰; 韩永隆
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2017-01-25
Filing date: 2017-01-25
Publication date: 2020-09-01
Anticipated expiration: 2037-01-25
Also published as: CN108345109A

Abstract

This case provides a wear-type virtual reality display device, includes: the display comprises a display body, a positioning bridle and an inflatable cushion module; the inflatable gasket module is arranged in the frame of the display body and comprises: the cotton body, the inflatable cushion, the air channel, the air pump, the air pressure sensor, the contact sensor and the control module; when the contact sensor senses that external pressure is generated, an enabling signal is sent to the control module to drive the air pump to act, so that air is guided into the inflatable cushion through the air channel to expand, and the shape of the foam body is adjusted accordingly; and when the air pressure sensor senses that the pressure in the inflatable cushion part is higher than a specific threshold value interval, the air pressure sensor sends an energy forbidding signal to the control module to control the air pump to stop operating, so that the inflatable cushion module is correspondingly attached to the face of a user.

Description

Head-mounted virtual reality display device

[ technical field ] A method for producing a semiconductor device

The present disclosure relates to a head-mounted virtual reality display device, and more particularly, to a head-mounted virtual reality display device with an inflatable cushion module.

[ background of the invention ]

With the advancement of science and technology, the conventional flat type video display device cannot satisfy the general consumers, and is replaced by a virtual reality display device with three-dimensional stereo light effect. Currently, a head-mounted virtual reality display device is widely used, and the virtual reality display device is mainly worn and fixed on the head of a user through a belt worn on the head. However, these head-mounted virtual reality display devices have many problems in design, for example, when a user wears the virtual reality display device, the positioning strap needs to position the virtual reality display device on the user's face and completely cover the eye region, so that the eyes of the user can correspond to the optical system of the virtual reality display device and the corresponding earphones need to be disposed at the ears, and the positioning strap is usually designed to be tighter to provide a tighter positioning connection. However, the positioning strap is designed to be relatively tight, so that the user is more inconveniently wearing and adjusting the position of the positioning strap, and after wearing, the pad arranged inside the virtual reality display device and contacting the face of the user is usually tightly pressed to force the face of the user, and cannot be adjusted according to the shape of the face of the user. In this way, although the user can enjoy the three-dimensional audio-visual effect by wearing the head-mounted virtual reality display device, the user is likely to feel uncomfortable due to the pressed face when wearing the head-mounted virtual reality display device for a long time.

Therefore, it is an urgent need to develop a head-mounted virtual reality display device that can adjust the inflation of the head so as to provide comfortable contact with the face of the user.

[ summary of the invention ]

The present invention provides a head-mounted virtual reality display device, which can be applied to a wearable device worn on the face, and can be adjusted by inflation according to the shape of the face of a user to match the shape of the face of the user, and provide a comfortable contact experience.

To achieve the above object, a broader aspect of the present invention is to provide a head mounted virtual reality display device, including: a display body having a frame; a positioning strap connected to the frame; and an inflatable cushion module, correspond to set up in this frame, and contain at least: a foam body correspondingly arranged in the frame; an inflatable cushion arranged corresponding to the foam body; a gas passage in communication with the inflatable cushion; a gas pump, which is communicated with the gas channel; a gas pressure sensor arranged in the gas channel; a contact sensor arranged on one side of the foam body; the control module is electrically connected with the gas pump, the gas pressure sensor and the contact sensor; when the touch sensor senses that external pressure is generated, the touch sensor sends an enabling signal to the control module, the control module drives the gas pump to act according to the enabling signal, so that gas is led into the inflatable cushion through the gas channel, the inflatable cushion is filled with the gas to expand, and the foam body can correspondingly adjust the shape of the foam body due to the external pressure and the expansion of the inflatable cushion; and when the air pressure sensor senses that the pressure in the inflatable cushion part is higher than a specific threshold value interval, the air pressure sensor sends a forbidden energy signal to the control module, and the control module controls the air pump to stop operating according to the forbidden energy signal, so that the inflatable cushion module is correspondingly attached to the face of a user.

[ description of the drawings ]

Fig. 1A is a schematic front view of a head-mounted virtual reality display device according to a preferred embodiment of the present disclosure.

Fig. 1B is a schematic back view of the head-mounted virtual reality display device of fig. 1A.

Fig. 2 is an exploded view of the inflatable cushion module of the head-mounted metaverse display device shown in fig. 1A.

Fig. 3 is a schematic cross-sectional view of an inflatable cushion module of a head-mounted metaverse display device according to a first preferred embodiment of the present disclosure.

Fig. 4 is a schematic cross-sectional view of an inflatable cushion module of a head-mounted metaverse display device according to another preferred embodiment of the present invention.

Fig. 5 is a schematic diagram illustrating a control system of an inflatable cushion module of a head-mounted metaverse display device according to a preferred embodiment of the present invention.

Fig. 6A and 6B are schematic exploded views of a gas pump according to a preferred embodiment of the present invention from different viewing angles.

Fig. 7 is a schematic cross-sectional view of the piezoelectric actuator shown in fig. 6A and 6B.

Fig. 8 is a cross-sectional view of the gas pump shown in fig. 6A and 6B.

Fig. 9A to 9E are flow chart diagrams illustrating the operation of the gas pump shown in fig. 6A and 6B.

[ detailed description ] embodiments

Exemplary embodiments that embody features and advantages of this disclosure are described in detail below in the detailed description. It will be understood that the present disclosure is capable of various modifications without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

Referring to fig. 1A and 1B, fig. 1A is a schematic front appearance diagram of a head mounted virtual reality display device according to a preferred embodiment of the present disclosure, and fig. 1B is a schematic back appearance diagram of the head mounted virtual reality display device of fig. 1A. As shown in fig. 1A and 1B, the head-mounted virtual reality display device 1 of the present disclosure includes a display body 2, a positioning strap 3, and an inflatable cushion module 4, and it should be noted that the inflatable cushion module 4 can be widely applied to a wearable device worn on the face in addition to being applied to the head-mounted virtual reality display device 1, so as to be inflated and adjusted according to the shape of the face of a person to match the shape of the face of the user and provide a comfortable contact experience.

Referring to fig. 1A, as shown in the figure, the display body 2 has a frame 20 and a base 21, and in some embodiments, the outer surface of the base 21 further has a fastener 21A for fastening an electronic device 5, for example: the smart phone, but not limited thereto, in other embodiments, the electronic device 5 can also be buckled inside the base 21, and the arrangement manner thereof can be changed according to the actual implementation situation, and is not limited thereto. As shown in the figure, the positioning strap 3 is correspondingly connected to the frame 20 of the display body 2, in some embodiments, the positioning strap 3 may be made of elastic cloth, and the material and the appearance of the positioning strap may be changed according to the actual implementation situation, but not limited thereto. In some embodiments, the head-mounted virtual reality display apparatus 1 further includes an earphone system (not shown), which may be a structure separated from the display body 20 and the positioning strap 3, or a structure that is small and sewn or fixed around the positioning strap 3.

Referring to fig. 1B, as shown in the figure, the back structure of the head-mounted virtual reality display device 1 of the present disclosure can be seen. The display body 2 of the head-mounted virtual reality display device 1 is a box structure, the frame 20 of the display body has an opening 200, the inflatable cushion module 4 is disposed in the frame 20 corresponding to the opening 200, and the appearance of the inflatable cushion module 4 substantially matches the appearance of the frame 20, so that after the inflatable cushion module 4 is disposed in the frame 20, an opening 400 can be defined through the inflatable cushion module 4, and the opening 400 is communicated with the inner space 23 of the display body 2, so that when the head-mounted virtual reality display device 1 is not worn on the head of a user, the inner space 23 of the display body 2 can be communicated with the outside through the opening 400. And, there are many optical components 22 in the display body 2 for adjusting and displaying the audio/video data played by the electronic device 5 in a three-dimensional effect by means of optical path adjustment.

Please refer to fig. 2, which is an exploded view of the inflatable cushion module of the head-mounted metaverse display device shown in fig. 1A. As shown, the inflatable cushion module 4 of the present disclosure at least comprises: the display device includes components such as an inflatable cushion 41, an air pump 42, an air channel 43, an air pressure sensor 44, a foam body 45, a contact sensor 46, and a control module 49 (as shown in fig. 5), but not limited thereto, wherein the foam body 45 is correspondingly disposed in the frame 20 of the display body 2, the inflatable cushion 41 is substantially disposed corresponding to the foam body 45, the air channel 43 is communicated with the inflatable cushion 41, the air pump 42 is communicated with the air channel 43, the air pressure sensor 44 is disposed in the air channel 43, and the contact sensor 46 is disposed on one side of the foam body 46, but not limited thereto. Taking the present embodiment as an example, the inflatable cushion module 4 further includes a substrate 40 and a lining cloth 47, but not limited thereto, wherein the appearance patterns of the substrate 40, the inflatable cushion 41, the air channel 43, the foam body 45 and the lining cloth 47 are substantially corresponding to the frame 20 of the display body 2, and are correspondingly connected to each other and correspondingly disposed in the frame 20. Also, in some embodiments, the inflatable cushion module 4 further includes a release valve 48 disposed on a side surface of the frame 20 of the display body 2 and communicating with the air channel 43 and the inflatable cushion 41 for releasing the inflatable cushion 41. The control module 49 is electrically connected to the air pump 42, the air pressure sensor 44, the contact sensor 46, the release valve 48 and the battery 491, so that the air pump 42 can be controlled to operate or stop operating by the corresponding signals transmitted by the air pressure sensor 44 and the contact sensor 46, or the release valve 48 can be controlled to operate to release pressure by the signals.

Referring to fig. 2 and 3, fig. 3 is a schematic cross-sectional view of an inflatable cushion module of a head-mounted metaverse display device according to a first preferred embodiment of the present invention. As shown in fig. 2 and 3, in the present embodiment, the base plate 40, the inflatable cushion 41, the air channel 43, the foam body 45 and the lining cloth 47 of the inflatable cushion module 4 are sequentially and correspondingly disposed, so when the assembly is completed, as shown in fig. 3, one side of the base plate 40 is directly and correspondingly disposed inside the frame 20, and the other side is the inflatable cushion 41, that is, the inflatable cushion 41 and the air channel 43 are disposed between the base plate 40 and the foam body 45. In some embodiments, the air channel 43 is formed by connecting a plurality of tiny hollow hoses, but not limited thereto, and the air channel 13 is disposed between the inflatable cushion 41 and the foam body 45 and is communicated with the inflatable cushion 41 for air circulation and transmission. In the present embodiment, the inflatable cushion 41 is an integrally formed inflatable structure, and a surface of the inflatable cushion 41 may include a plurality of inflatable cushion holes (not shown). The gas channel 43 also includes a plurality of gas channel holes (not shown), and the number, size and position of the gas channel holes of the gas channel 43 correspond to the plurality of inflatable cushion holes of the inflatable cushion 41, so that the gas channel 43 and the inflatable cushion 41 can be connected and positioned by the gas channel holes and the inflatable cushion holes, and the gas channel 43 and the inflatable cushion 41 can be communicated with each other. And, the gas pump 42 is connected to the gas channel 43 for introducing gas into the gas channel 43 to further inflate the inflatable cushion 41; in the embodiment, the foam body 45 can be, but not limited to, a memory foam body, and the inflatable cushion 41 is disposed adjacent to the foam body 45, so that when the inflatable cushion 41 is inflated, the shape of the foam body 45 can be adjusted correspondingly, so that the foam body 45 can be adjusted correspondingly to the shape of the face of the user.

In the present embodiment, the lining cloth 47 is made of a light, thin and comfortable cloth, which mainly fits the face of the user and provides a soft and comfortable touch. As shown in fig. 3, the contact sensor 46 is correspondingly disposed between the foam body 45 and the lining cloth 47, but not limited thereto, and is used for sensing an external pressure and sending a signal according to the sensed external pressure, so that when the user wears the head-mounted virtual reality display device 1 of the present invention on the head, the display body 2 is correspondingly disposed on the face of the user, and when the lining cloth 47 of the inflatable cushion module 4 disposed in the frame 20 contacts the face of the user, the contact sensor 46 disposed between the lining cloth 47 and the foam body 45 can sense the generation of the external pressure and send an enabling signal to a control module 49 (as shown in fig. 5), the control module 49 drives the gas pump 42 to operate according to the enabling signal, so that the gas is introduced into the inflatable cushion 41 through the gas channel 43, so that the inflatable cushion 41 is inflated by filling the gas, the foam body 45 is correspondingly adjusted in shape according to the external pressure given by the face of the user and the constant pressure provided by the expansion of the inflatable cushion 41, and the foam body 45 can be correspondingly attached to the face of the user, and provides a soft and comfortable wearing feeling.

As for the air pressure sensor 44, as shown in fig. 2 and 3, it is disposed in the air channel 43, but not limited thereto, for sensing the air pressure inside the inflatable cushion 41 and sending a signal according to the sensed air pressure; for example, when it senses that the pressure inside the inflatable cushion 41 is higher than a specific threshold interval, the air pressure sensor 44 sends a disable signal to the control module 49, at this time, the control module 49 controls the air pump 42 to stop operating according to the disable signal, so as to stop inflating the inflatable cushion 41, and further adjust the most suitable air pressure value of the inflatable cushion 41 by setting the value of the threshold interval, so as to provide a more comfortable wearing experience for the user.

Referring to fig. 2 and 4, fig. 4 is a schematic cross-sectional view of an inflatable cushion module of a head-mounted virtual reality display device according to another preferred embodiment of the present invention. As shown in fig. 2 and 4, in the present embodiment, the structure and the operation of the base plate 40, the inflatable cushion 41, the air pump 42, the air channel 43, the air pressure sensor 44, the foam body 45, the contact sensor 46 and the lining cloth 47 of the inflatable cushion module 4 are similar to those of the previous embodiments, and therefore will not be described again, but in the present embodiment, the inflatable cushion 41 and the air channel 43 are disposed inside the covering foam body 45, and the foam body 45 is disposed between the base plate 40 and the lining cloth 47. In other words, the air channel 43 of the present embodiment is disposed inside the inflatable cushion 41 for directly transmitting the air to the inflatable cushion 41, and the inflatable cushion 41 is covered by the foam body 45, when the air pump 42 is activated, the air is transmitted from the air channel 43 to the inflatable cushion 41, so that the inflatable cushion 41 inflates and expands, and further provides a constant pressure, and at this time, the foam body 45 covering the inflatable cushion 41 can correspondingly adjust its shape according to the shape of the face of the user and the pressure provided by the internal inflatable cushion 41, so as to adjust according to the shape of the face of the user, and provide a soft, cushion-covered, buffered and comfortable wearing experience.

Please refer to fig. 5, which is a schematic diagram illustrating a control system of an inflatable cushion module of a head-mounted metaverse display device according to a preferred embodiment of the present invention. In this embodiment, the inflatable cushion module 4 of the head-mounted virtual reality display apparatus 1 further has a control system, which includes a control module 49, a battery 491 and a release valve 48, wherein the control module 49 is electrically connected to the gas pump 42, the gas pressure sensor 44, the contact sensor 46 and the release valve 48, and respectively receives the signals from the air pressure sensor 44 and the contact sensor 46, and controls the air pump 42 to be driven or stopped according to the received signals, and when the control module 49 of the control system drives the gas pump 42 to operate, the gas pump 42 will pump the gas into the gas channel 43, and then the gas is introduced into the inflatable cushion 41, and monitors the gas pressure inside thereof through a gas pressure sensor 44 provided in the gas passage 43, and transmits a disable signal or an enable signal to the control unit 49 when the threshold value is higher or lower than a specific threshold value interval, so as to drive or stop the operation of the gas pump 42 again. As mentioned above, the release valve 48 is a pressure adjusting mechanism, which is disposed on the side surface of the frame 20 of the display body 2 (as shown in fig. 1A and 1B), is in communication with the air channel 43 and the inflatable cushion 41, and is electrically connected to the control module 49, so that when the control module 49 receives a pressure release signal transmitted by the contact sensor 46, it can correspondingly control the release valve 48 to release pressure. The position of the control module 49 is disposed inside the frame 20 of the display main body 2, for example, it can be disposed inside the adjacent release valve 48 or adjacent to the gas pump 42, but not limited thereto. The battery 491 can be a lithium battery or a mercury battery, and is disposed inside the frame 20 of the display body 2, and can be disposed adjacent to the inside of the release valve 48 or other suitable position.

Referring to fig. 1A, fig. 1B, fig. 2 and fig. 5, when the user fits the head-mounted virtual reality display device 1 of the present disclosure on the head of the user, the position of the positioning strap 3 can be adjusted to enable the display body 2 to be disposed on the face of the user, and at this time, the inflatable cushion module 4 disposed in the frame 20 of the display body 2 contacts the face of the user, in this embodiment, the cushion 47 disposed on the outermost layer contacts the face of the user, and the contact sensor 46 senses the generation of an external pressure, so that the contact sensor 46 sends an enable signal to the control module 49 in response to the external pressure, and the control module 49 drives the air pump 42 to actuate according to the received enable signal, so that the air is introduced into the inflatable cushion 41 through the air passage 43, and the inflatable cushion 41 is inflated to expand, so that the foam body 45 can adjust its shape according to the external pressure of the user's face and the expansion of the inflatable cushion. In addition, when the gas pump 42 is driven and fills the inflatable cushion 41 with gas, the control module 49 also controls the air pressure sensor 44 to sense the air pressure inside the inflatable cushion 41, so that when the air pressure sensor 44 senses that the internal pressure of the inflatable cushion 41 is higher than a specific threshold interval, the air pressure sensor 44 sends a disable signal to the control module 49, the control module 49 can control the gas pump 42 to stop operating according to the disable signal, so as to prevent the face discomfort of the user caused by the excessive pressure of the inflatable cushion 41, of course, if the internal pressure of the inflatable cushion 41 is detected to be lower than the specific threshold interval, the pressure sensor 44 also sends an enable signal to the control module 49, and the control module 49 can drive the gas pump 42 again to operate according to the enable signal. Therefore, the inflation degree of the inflatable cushion 41 can be intelligently adjusted by detecting and controlling the air pressure sensor 44, so that when a user wears the inflatable cushion, the foam body 45 can correspondingly adjust the shape of the inflatable cushion 41 along with the inflation degree of the inflatable cushion, the foam body is close to the face of the user, the problem of non-fitting cannot be caused, and meanwhile, the wearing experience of buffering, softness, fluffiness and comfortable fitting of the user can be provided due to inflation of the inflatable cushion 41.

In addition, the inflatable cushion module 4 of the present embodiment has an air pressure adjusting function. As shown in fig. 1A, 1B, 2 and 5, the inflatable cushion module 4 of the present embodiment includes a release valve 48, which is but not limited to a switchable valve structure, disposed on a side surface of the frame 20 of the display body 2. As shown in fig. 2, the visible gas channel 43 may further include a release valve opening 43a, and the inflatable cushion 41 may also include another release valve opening 41a, which are disposed and communicated with the release valve 48. As mentioned above, the release valve 48 is electrically connected to the control module 46, and is used for releasing the gas in the inflatable cushion 41 out of the head-mounted virtual reality display device 1 through the release valve opening 41a and the release valve opening 43a of the gas channel 43 by the release valve 48. Therefore, when the user starts to take off the head mounted virtual reality display device 1, the contact sensor 46 senses that the external pressure provided by the face of the user starts to disappear, and sends an energy prohibiting signal and a pressure releasing signal to the control module 49, and after the control module 49 receives the energy prohibiting signal and the pressure releasing signal, the control module 49 controls the gas pump 42 to stop operating according to the energy prohibiting signal, and further drives the release valve 48 to open according to the pressure releasing signal, so that at least part of the gas in the inflated and expanded inflatable cushion 41 is released out of the head mounted virtual reality display device 1 through the release valve 48. Therefore, the inflatable cushion module 4 can automatically and intelligently adjust the air pressure inside the inflatable cushion module according to the use state, so that the reduction of the service life caused by the long-time inflation state of the inflatable cushion 41 can be avoided, and the head-mounted virtual reality display device 1 can be worn and used by a user in the most comfortable state.

In other embodiments, the release valve 48 may be a knob (not shown), but not limited thereto. The release valve 48 is manually actuated by tightening or loosening the knob to open or close the release valve 48. Therefore, a user can adjust the internal air pressure of the inflatable cushion module 4 through the knob, and the knob is unscrewed according to the requirement of the user, so that the release valve 48 is opened and communicated to the outside of the head-mounted virtual reality display device 1, and the air in the inflatable cushion 41 is released; after the pressure is adjusted to a proper value, the knob is tightened again to close the release valve 48, so as to prevent the gas from being released excessively and causing insufficient pressure. By means of the knob, the inflatable cushion 41 can be tightly attached to the face of the user and is not too tight, so that the user can wear the head-mounted virtual reality display device 1 in the most comfortable state.

Fig. 6A and 6B are exploded structural diagrams of a gas pump according to a preferred embodiment of the present invention at different viewing angles, fig. 7 is a sectional structural diagram of the piezoelectric actuator shown in fig. 6A and 6B, and fig. 8 is a sectional structural diagram of the gas pump shown in fig. 6A and 6B, respectively. As shown in fig. 6A, 6B, 7 and 8, the gas pump 42 is a piezoelectric-actuated gas pump, and includes a gas inlet plate 421, a resonator plate 422, a piezoelectric actuator 423, insulating sheets 424a and 424B, a conducting sheet 425, and the like, wherein the piezoelectric actuator 423 is disposed corresponding to the resonator plate 422, and the gas inlet plate 421, the resonator plate 422, the piezoelectric actuator 423, the insulating sheet 424a, the conducting sheet 425, the other insulating sheet 424B, and the like are sequentially stacked, and the assembled cross-sectional view is as shown in fig. 8.

In the present embodiment, the air intake plate 421 has at least one air intake hole 421a, wherein the number of the air intake holes 421a is preferably 4, but not limited thereto. The air inlet holes 421a penetrate through the air inlet plate 421, so that air can flow from the at least one air inlet hole 421a into the air pump 42 under the action of atmospheric pressure. The air inlet plate 421 has at least one bus bar hole 421b, which is disposed corresponding to the at least one air inlet hole 421a on the other surface of the air inlet plate 421. The bus bar hole 421b has a central concave portion 421c at the central communication position, and the central concave portion 421c is communicated with the bus bar hole 421b, so that the gas entering the bus bar hole 421b from the at least one gas inlet hole 421a can be guided and converged to the central concave portion 421c, thereby realizing gas transmission. In the present embodiment, the air inlet plate 421 has an air inlet hole 421a, a bus bar hole 421b and a central recess 421c, which are integrally formed, and a bus chamber for collecting the air is correspondingly formed at the central recess 421c for temporary storage of the air. In some embodiments, the air inlet plate 421 may be made of, for example, but not limited to, stainless steel. In other embodiments, the depth of the bus chamber formed by the central recess 421c is the same as the depth of the bus bar hole 421b, but not limited thereto. The resonator plate 422 is made of a flexible material, but not limited thereto, and the resonator plate 422 has a hollow hole 422c corresponding to the central recess 421c of the inlet plate 421 for gas to flow through. In other embodiments, the resonator plate 422 may be made of a copper material, but not limited thereto.

The piezoelectric actuator 423 is assembled by a suspension plate 4231, an outer frame 4232, at least one support 4233 and a piezoelectric sheet 4234, wherein the piezoelectric sheet 4234 is attached to a first surface 4231c of the suspension plate 4231 for applying a voltage to generate a deformation to drive the suspension plate 4231 to bend and vibrate, and the at least one support 4233 is connected between the suspension plate 4231 and the outer frame 4232, in this embodiment, the support 4233 is connected between the suspension plate 4231 and the outer frame 4232, two end points of the support 4233 are respectively connected to the outer frame 4232 and the suspension plate 4231 to provide an elastic support, and at least one gap 4235 is further provided between the support 4233, the suspension plate 4231 and the outer frame 4232, and the at least one gap 4235 is communicated with the gas channel 43 for the circulation of a gas. It should be emphasized that the shapes and numbers of the suspension plate 4231, the outer frame 4232 and the support 4233 are not limited to the above embodiments, and can be changed according to the practical application. The outer frame 4232 is disposed around the suspension plate 4231, and has a conductive pin 4232c protruding outward for power connection, but not limited thereto.

The suspension plate 4231 is a stepped structure (as shown in fig. 7), i.e., the second surface 4231b of the suspension plate 4231 further has a protrusion 4231a, and the protrusion 4231a may be, but not limited to, a circular protrusion structure. The protrusions 4231a of the suspension plate 4231 are coplanar with the second surface 4232a of the outer frame 4232, the second surface 4231b of the suspension plate 4231 and the second surface 4233a of the bracket 4233 are also coplanar, and the protrusions 4231a of the suspension plate 4231, the second surface 4232a of the outer frame 4232, the second surface 4231b of the suspension plate 4231 and the second surface 4233a of the bracket 4233 have a specific depth therebetween. The first surface 4231c of the suspension plate 4231, the first surface 4232b of the outer frame 4232 and the first surface 4233b of the support 4233 are flat and coplanar, and the piezoelectric sheet 4234 is attached to the flat first surface 4231c of the suspension plate 4231. In other embodiments, the suspension plate 4231 may be a square structure with a flat surface, and the shape of the square structure may be varied according to the actual implementation. In some embodiments, the suspension plate 4231, the support 4233 and the outer frame 4232 may be integrally formed, and may be made of a metal plate, such as but not limited to stainless steel. In yet other embodiments, the length of the sides of the piezoelectric patches 4234 is less than the length of the sides of the suspension plates 4231. In still other embodiments, the length of the piezoelectric sheet 4234 is equal to the length of the suspension plate 4231, and is also designed to be a square plate-shaped structure corresponding to the suspension plate 4231, but not limited thereto.

In the present embodiment, as shown in fig. 6A, the insulation sheet 424a, the conductive sheet 425 and the another insulation sheet 424b of the gas pump 42 are sequentially disposed under the piezoelectric actuator 423, and the configuration thereof substantially corresponds to the configuration of the outer frame 4232 of the piezoelectric actuator 423. In some embodiments, the insulating

sheets

424a, 424b are made of an insulating material, such as but not limited to plastic, to provide an insulating function. In other embodiments, the conductive sheet 425 may be made of a conductive material, such as but not limited to a metal material, to provide an electrical conduction function. In this embodiment, a conductive pin 425a may also be disposed on the conductive sheet 425 for electrical conduction.

In the present embodiment, as shown in fig. 8, the gas pump 42 is formed by stacking the gas inlet plate 421, the resonator plate 422, the piezoelectric actuator 423, the insulating plate 424a, the conducting plate 425 and the other insulating plate 424b in sequence, and a gap h is formed between the resonator plate 422 and the piezoelectric actuator 423, in the present embodiment, a filling material, such as but not limited to a conductive adhesive, is filled into the gap h between the resonator plate 422 and the periphery of the outer frame 4232 of the piezoelectric actuator 423, so that the depth of the gap h can be maintained between the resonator plate 422 and the protrusion 4231a of the suspension plate 4231 of the piezoelectric actuator 423, and further, the gas flow can be guided to flow more rapidly, and the contact interference between the protrusion 4231a of the suspension plate 4231 and the resonator plate 422 can be reduced because the protrusion 4231a and the resonator plate 422 maintain a proper distance, so that the generation of noise. In other embodiments, the height of the outer frame 4232 of the high voltage electric actuator 423 may be increased to increase a gap when the high voltage electric actuator is assembled with the resonator plate 422, but not limited thereto.

In the present embodiment, after the air inlet plate 421, the resonator plate 422 and the piezoelectric actuator 423 are assembled in sequence, the resonator plate 422 has a movable portion 422a and a fixed portion 422b, the movable portion 422a and the air inlet plate 421 thereon together form a chamber for collecting air, a first chamber 420 is further formed between the resonator plate 422 and the piezoelectric actuator 423 for temporarily storing air, the first chamber 420 is communicated with the chamber at the central recess 421c of the air inlet plate 421 through the hollow hole 422c of the resonator plate 422, and two sides of the first chamber 420 are communicated with the air passage 43 through the gap 4235 between the supports 4233 of the piezoelectric actuator 423.

FIGS. 9A to 9E are views showing the flow of the operation of the gas pump shown in FIGS. 6A and 6B. Referring to fig. 8 and 9A to 9E, the operation flow of the gas pump of the present invention is briefly described as follows. When the gas pump 42 is operated, the piezoelectric actuator 423 is actuated by a voltage to perform reciprocating vibration in the vertical direction with the support 4233 as a fulcrum. As shown in fig. 9A, when the piezoelectric actuator 423 is actuated by a voltage to vibrate downward, because the resonance sheet 422 is a light and thin sheet-like structure, when the piezoelectric actuator 423 vibrates, the resonance sheet 422 also vibrates vertically in a reciprocating manner along with the resonance, that is, the part of the resonance sheet 422 corresponding to the central recess 421c also deforms along with the bending vibration, that is, the part corresponding to the central recess 421c is the movable part 422a of the resonance sheet 422, so that when the piezoelectric actuator 423 vibrates in a downward bending manner, the movable part 422a of the resonance sheet 422 corresponding to the central recess 421c is driven by the bringing in and pushing of the gas and the vibration of the piezoelectric actuator 423, and along with the deformation of the piezoelectric actuator 423 in a downward bending vibration, the gas enters from at least one air inlet hole 421a of the air inlet plate 421 and is collected at the central recess 421c through at least one bus hole 421b, and then flows downward into the first chamber 420 through a hollow hole 422c of the resonance plate 422, which is provided corresponding to the central recess 421 c. Thereafter, the resonator plate 422 vibrates vertically and reciprocally due to the resonance caused by the vibration of the piezoelectric actuator 423, as shown in fig. 9B, at this time, the movable portion 422a of the resonator plate 422 also vibrates vertically and downwardly, and abuts against the protrusion 4231a of the suspension plate 4231 of the piezoelectric actuator 423, so that the distance between the confluence chambers between the region other than the protrusion 4231a of the suspension plate 4231 and the fixing portions 422B at both sides of the resonator plate 422 is not decreased, and the volume of the first chamber 420 is compressed by the deformation of the resonator plate 422, the middle flow space of the first chamber 420 is closed, the gas in the first chamber is pushed to flow to both sides, and further flows downward through the gap 4235 between the supports 4233 of the piezoelectric actuator 423. Then, as shown in fig. 9C, the movable portion 422a of the resonator plate 422 bends upward to vibrate and deform, and returns to the initial position, and the piezoelectric actuator 423 is driven by the voltage to vibrate upward, so as to press the volume of the first chamber 420, but at this time, since the piezoelectric actuator 423 is lifted upward, the gas in the first chamber 420 flows toward both sides, and the gas continuously enters from the at least one air inlet hole 421a of the air inlet plate 421 and then flows into the chamber formed by the central recess 421C. Then, as shown in fig. 9D, the resonance plate 422 resonates upward due to the upward vibration of the piezoelectric actuator 423, and the movable portion 422a of the resonance plate 422 vibrates upward, so as to slow down the gas from continuously entering from the at least one air inlet hole 421a of the air inlet plate 421, and then flows into the chamber formed by the central recess 421 c. Finally, as shown in fig. 9E, the movable portion 422a of the resonator plate 422 also returns to the initial position, so that when the resonator plate 422 performs vertical reciprocating vibration, the maximum distance of the vertical displacement can be increased by the gap h between the resonator plate 422 and the piezoelectric actuator 423, in other words, the gap h between the two structures can enable the resonator plate 422 to generate a larger vertical displacement at the time of resonance. Therefore, a pressure gradient is generated in the flow channel design of the gas pump 42 to make the gas flow at a high speed, and the gas is transmitted from the suction end to the discharge end through the impedance difference in the inlet and outlet directions of the flow channel to complete the gas transmission operation, even if the discharge end has the gas pressure, the gas can still be continuously pushed into the gas channel 43, and the silencing effect can be achieved, so that the gas pump 42 can generate the gas transmission from the outside to the inside by repeating the operation of the gas pump 42 in the figures 9A to 9E.

As mentioned above, the gas is introduced into the gas channel 43 by the actuation of the gas pump 42, so that the introduced gas flows into the inflatable cushion 41, and the inflatable cushion 41 is inflated and expanded, and the foam body 45 can also adjust its shape correspondingly with the expansion degree of the inflatable cushion 41, so that the foam body is close to the face of the user, and the problem of non-fitting is not generated, and meanwhile, because of the inflation and expansion of the inflatable cushion 41, the wearing experience of the user with buffering, softness, fluffiness and comfortable fitting can be provided. .

In summary, the present disclosure provides a head-mounted virtual reality display device, which can be widely applied to a wearable device worn on the face, so that the inflatable cushion module can automatically and intelligently inflate the inflatable cushion and expand the inflatable cushion by the external pressure generated when the user wears the head-mounted virtual reality display device on the face, and the foam body can be adjusted to fit and fix the face of the user according to the adjustment form, and can be adjusted according to different shapes of the face of the user, so as to be flexibly and comfortably wrapped and fixed. In addition, the inflatable cushion module has an air pressure adjusting function, and can automatically and intelligently adjust the internal air pressure according to the use state, so that the service life of the inflatable cushion can be prolonged, and a user can wear the head-mounted virtual reality display device under the most comfortable pressure. In addition, the user can manually adjust the internal pressure of the inflatable cushion by himself, so as to provide more convenient operation and wider application.

Various modifications may be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims.

[ notation ] to show

1: head-mounted virtual reality display device

2: display body

20: rims

200: opening of the container

21: base seat

21 a: buckle tool

22: optical element

23: inner space

3: positioning binding band

4: inflatable cushion module

40: substrate

400: opening of the container

41: inflatable cushion

41 a: relief valve port

42: gas pump

420: the first chamber

421: flow guide plate

421 a: flow guide hole

421 b: bus bar hole

421 c: central concave part

422: resonance sheet

422 a: movable part

422 b: fixing part

422 c: hollow hole

423: piezoelectric actuator

4231: suspension plate

4231 a: convex part

4231 b: second surface

4231 c: first surface

4232: outer frame

4232 a: second surface

4232 b: first surface

4232 c: conductive pin

4233: support frame

4233 a: second surface

4233 b: first surface

4234: piezoelectric patch

4235: voids

424a, 424 b: insulating sheet

425: conductive sheet

425 a: conductive pin

43: gas channel

43 a: relief valve opening

44: air pressure sensor

45: foam body

46: contact sensor

47: lining cloth

48: release valve

49: control module

491: battery with a battery cell

5: electronic device

Claims

1. A head-mounted metaverse display device, comprising:

a display body having a frame;

a positioning strap connected to the frame; and

an inflatable cushion module, correspond to set up in this frame, and contain at least:

a foam body correspondingly arranged in the frame;

an inflatable cushion arranged corresponding to the foam body;

a gas passage in communication with the inflatable cushion;

a gas pump in communication with the gas passage, the gas pump being a piezoelectric actuated gas pump comprising:

an air inlet plate, which is provided with at least one air inlet hole, at least one bus bar hole and a central concave part forming a confluence chamber, wherein the at least one air inlet hole is used for leading in air flow, the bus bar hole is corresponding to the air inlet hole, and the air flow of the air inlet hole is guided to converge to the confluence chamber formed by the central concave part;

a resonance sheet having a hollow hole corresponding to the confluence chamber, and a movable part around the hollow hole; and

a piezoelectric actuator, which is arranged corresponding to the resonance sheet;

wherein, a gap is arranged between the resonance sheet and the piezoelectric actuator to form a cavity, so that when the piezoelectric actuator is driven, airflow is guided in from the at least one air inlet hole of the air inlet plate, is collected to the central concave part through the at least one bus bar hole, and then flows through the hollow hole of the resonance sheet to enter the cavity, and resonance transmission airflow is generated by the piezoelectric actuator and the movable part of the resonance sheet;

a gas pressure sensor arranged in the gas channel;

a contact sensor arranged on one side of the foam body; and

the control module is electrically connected with the gas pump, the air pressure sensor and the contact sensor;

when the touch sensor senses that external pressure is generated, the touch sensor sends an enabling signal to the control module, the control module drives the gas pump to act according to the enabling signal, so that gas is led into the inflatable cushion through the gas channel, the inflatable cushion is filled with the gas to expand, and the foam body can correspondingly adjust the shape of the foam body due to the external pressure and the expansion of the inflatable cushion; and when the air pressure sensor senses that the internal pressure of the inflatable cushion is higher than a specific threshold interval, the air pressure sensor sends a forbidden energy signal to the control module, and the control module controls the air pump to stop operating according to the forbidden energy signal, so that the inflatable cushion module is correspondingly attached to the face of a user.

2. The head-mounted metaverse display device of claim 1, wherein the inflatable cushion module further comprises a substrate disposed corresponding to the bezel.

3. The head-mounted virtual reality display apparatus of claim 2, wherein the inflatable cushion and the air channel are disposed between the substrate and the foam body, and the air channel is disposed between the foam body and the inflatable cushion.

4. The head-mounted metaverse display device of claim 2, wherein the inflatable cushion module further comprises a lining cloth correspondingly disposed on one side of the foam body, and the touch sensor is disposed between the foam body and the lining cloth.

5. The head-mounted virtual reality display device of claim 4, wherein the inflatable cushion and the air channel are disposed within the foam body, and the foam body is disposed between the substrate and the lining cloth.

6. The head-mounted virtual reality display apparatus of claim 1, wherein the inflatable cushion module further comprises a release valve, the release valve is disposed on a side surface of the frame of the display body and is in communication with the air channel and the inflatable cushion.

7. The head mounted metaverse display device of claim 6, wherein the release valve is manually actuated to cause gas to exit the inflatable cushion module through the release valve.

8. The head-mounted virtual reality display device of claim 6, wherein the release valve is electrically connected to the control module, and when the contact sensor senses that the external pressure is reduced or eliminated, the contact sensor sends a pressure relief signal to the control module, and the control module drives the release valve to actuate according to the pressure relief signal, so that the gas is exhausted from the release valve to the inflatable cushion module.

9. The head-mounted metaverse display apparatus of claim 1, wherein the control module comprises a battery for providing power to the control module.

10. The head-mounted metaverse display apparatus of claim 1, wherein the piezoelectric actuator comprises:

a suspension plate having a first surface and a second surface and capable of bending and vibrating;

an outer frame surrounding the suspension plate;

at least one bracket connected between the suspension plate and the outer frame to provide elastic support; and

the piezoelectric sheet is attached to a first surface of the suspension plate and used for applying voltage to drive the suspension plate to vibrate in a bending mode.

11. The head-mounted metaverse display apparatus of claim 10, wherein the suspension plate is a square suspension plate and has a convex portion.

12. The head-mounted virtual reality display apparatus of claim 1, wherein the piezo-actuated gas pump comprises a conductive plate, a first insulating plate and a second insulating plate, wherein the air inlet plate, the resonator plate, the piezo-actuator, the first insulating plate, the conductive plate and the second insulating plate are stacked in sequence.