CN108345109B - head-mounted virtual reality display - Google Patents

Abstract

The present case provides a head-mounted virtual reality display device, comprising: a display body, a positioning strap and an inflatable cushion module; the inflatable cushion module is arranged in the frame of the display body, and comprises: a cotton body, an inflatable cushion, a gas channel, a gas pump, an air pressure sensor, a contact sensor and a control module; when the contact sensor senses that an external pressure is generated, an enable signal is sent to the control module to drive the gas pump to operate, so that the gas is introduced into the inflatable cushion from the gas channel to expand, and the foam body adjusts its shape accordingly; and when the air pressure sensor senses that the internal pressure of the inflatable cushion is higher than a specific threshold range, the air pressure sensor sends a disable signal to the control module to control the gas pump to stop operating, so that the inflatable cushion module can fit the user's face accordingly.

Description

head-mounted virtual reality display

【Technical field】

This case is about a head-mounted virtual reality display device, especially a head-mounted virtual reality display device with an inflatable cushion module.

【Background technique】

With the advancement of technology, traditional flat-screen audio-visual display devices can no longer satisfy general consumers, and instead are replaced by virtual reality display devices with three-dimensional stereo light effects. Currently, a head-mounted virtual reality display device is widely used, and the virtual reality display device is worn and fixed on the user's head mainly through a strap worn on the head. However, there are many problems in the design of these head-mounted virtual reality display devices. For example, when the user wears the virtual reality display device, the virtual reality display device needs to be positioned on the The user's face must completely cover the eye area, so that the user's eyes can correspond to the optical system of the virtual reality display device, and the corresponding earphones must also be set at the position of the ears, so as to locate Straps are usually designed to be tighter to provide a tighter positioning connection. However, because the positioning strap is designed to be tight, it is more inconvenient for the user to wear and adjust its position, and when the wearing is completed, it is placed inside the virtual reality display device and is used to contact the user's face. The pads typically press tightly against the user's face and are less able to adjust to the shape of the user's face. In this way, although the user can enjoy the three-dimensional sound, light, audio and video effects by wearing the head-mounted virtual reality display device, when the user wears the device for a long time, the user will easily feel the discomfort of the pressure on the face. .

In view of this, how to develop a head-mounted virtual reality display device that can improve the deficiencies of the aforementioned known technologies, and develop a head-mounted virtual reality display device that can adapt to the shape of an individual's face and adjust the inflation to provide a comfortable contact with the user's face, It is a problem that urgently needs to be solved.

[Content of the invention]

The main purpose of this case is to provide a head-mounted virtual reality display device, which can also be applied to a wearable device worn on the face, so that it can be inflated and adjusted according to the shape of the individual's face to match the shape of the user's face, and Provides a comfortable touch experience.

In order to achieve the above purpose, a broader implementation aspect of the present case is to provide a head-mounted virtual reality display device, comprising: a display body having a frame; a positioning strap connected to the frame; and an inflatable A type cushion module, correspondingly disposed in the frame, and at least comprising: a foam body, corresponding to the frame; an air cushion, corresponding to the foam body; an air channel, connected to the air cushion a gas pump, 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; and a control module, connected with the gas pump, the gas pressure The sensor and the contact sensor are electrically connected; wherein, when the contact sensor senses that an external pressure is generated, the contact sensor sends an enabling signal to the control module, and the control module drives the gas pump to act according to the enabling signal , the gas is introduced into the inflatable cushion through the gas channel, so that the inflatable cushion is filled with gas to generate expansion, and the foam body can adjust its shape correspondingly according to the external pressure and the expansion of the inflatable cushion; and, when When the air pressure sensor senses that the internal pressure of the inflatable cushion is higher than a certain threshold interval, the air pressure sensor sends a disable signal to the control module, and the control module controls the gas pump to stop operation according to the disable signal , so that the inflatable cushion module can fit the user's face correspondingly.

【Description of drawings】

FIG. 1A is a schematic diagram of the front appearance of a head-mounted virtual reality display device according to a preferred embodiment of the present invention.

FIG. 1B is a schematic view of the rear appearance of the head-mounted virtual reality display device of FIG. 1A .

FIG. 2 is a schematic diagram of an exploded structure of an inflatable cushion module of the head-mounted virtual reality display device shown in FIG. 1A .

3 is a schematic cross-sectional structural diagram of an inflatable cushion module of the head-mounted virtual reality display device according to the first preferred embodiment of the present invention.

4 is a schematic cross-sectional structural diagram of an inflatable cushion module of a head-mounted virtual reality display device according to another preferred embodiment of the present invention.

FIG. 5 is a schematic structural diagram of the control system of the inflatable cushion module of the head-mounted virtual reality display device according to the preferred embodiment of the present invention.

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

FIG. 7 is a schematic cross-sectional structure diagram of the piezoelectric actuator shown in FIGS. 6A and 6B .

FIG. 8 is a schematic cross-sectional structure diagram of the gas pump shown in FIGS. 6A and 6B .

9A to 9E are flow charts showing the operation of the gas pump shown in FIGS. 6A and 6B .

【Detailed ways】

Some typical embodiments embodying the features and advantages of the present case will be described in detail in the description of the latter paragraph. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and diagrams therein are essentially for illustrative purposes rather than limiting the present case.

Please refer to FIGS. 1A and 1B . FIG. 1A is a schematic front view of the head-mounted virtual reality display device according to the preferred embodiment of the present invention, and FIG. 1B is a schematic view of the rear view of the head-mounted virtual reality display device of FIG. 1A . As shown in FIG. 1A and FIG. 1B , the head-mounted virtual reality display device 1 of this case includes a display body 2 , a positioning strap 3 , an inflatable cushion module 4 and other components. It is worth mentioning that the inflatable cushion In addition to being applied to the head-mounted virtual reality display device 1, the pad module 4 can also be widely used in a wearable device worn on the face, so that it can be inflated and adjusted according to the shape of the individual's face to match the shape of the user's face. , and can provide a comfortable touch experience.

Please continue to refer to FIG. 1A . As shown in the figure, the display body 2 has a frame 20 and a base 21 . In some embodiments, the outer surface of the base 21 further has a fastener 21 a for clamping an electronic device 5 , such as a smart type mobile phone, but not limited to this, in other embodiments, the electronic device 5 can also be buckled in the interior of the base 21, and its setting method can be arbitrarily changed according to the actual operation situation, not limited. And, 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 can be made of elastic cloth, and its material and appearance are also the same It can be changed arbitrarily according to the actual operation situation, and it is not limited to this. In some embodiments, the head-mounted virtual reality display device 1 may further be provided with an earphone system (not shown), which may be a structure provided separately from the display body 20 and the positioning strap 3, or may be a The structures that are small and sewn and fixed to the periphery of the positioning belt 3 are not limited to this.

Please refer to FIG. 1B , as shown in the figure, the rear structure of the head-mounted virtual reality display device 1 of the present application can be seen. The display body 2 of the head-mounted virtual reality display device 1 is a box structure, and its frame 20 has an opening 200 , and the inflatable cushion module 4 is disposed on the frame 20 corresponding to the opening 200 . In addition, the appearance of the inflatable cushion module 4 is roughly consistent with the appearance of the frame 20, so when the inflatable cushion module 4 of the present case is correspondingly disposed inside the frame 20, it is still 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. Therefore, when the head-mounted virtual reality display device 1 is not worn on the When the user's head is on, the inner space 23 of the display body 2 can communicate with the outside through the opening 400 . In addition, the display body 2 further has a plurality of optical elements 22 for adjusting and presenting a three-dimensional effect by adjusting the optical path of the audio and video data played by the electronic device 5 .

Please refer to FIG. 2 , which is an exploded schematic diagram of the inflatable cushion module of the head-mounted virtual reality display device shown in FIG. 1A . As shown in the figure, the inflatable cushion module 4 of the present case at least includes: an inflatable cushion 41, an air pump 42, an air passage 43, an air pressure sensor 44, a foam body 45, a contact sensor 46 and a control module 49 (as shown in FIG. 5). (shown) and other components, but not limited to this, wherein the foam body 45 is correspondingly arranged in the frame 20 of the display body 2, the air cushion 41 is arranged roughly corresponding to the foam body 45, and the air passage 43 is connected with the air cushion 41. The gas pump 42 communicates with the gas channel 43, the air pressure sensor 44 is arranged in the gas channel 43, and the contact sensor 46 is arranged on one side of the foam body 46, but not limited thereto. Taking this embodiment as an example, the inflatable cushion module 4 further includes structures such as a substrate 40 and a lining cloth 47 , but not limited thereto, wherein the substrate 40 , the inflatable cushion 41 , the air passage 43 , the foam body 45 and the lining cloth 47 The appearances of the components are roughly corresponding to the frame 20 of the display main body 2 , so that they can be connected to each other and arranged correspondingly within the frame 20 . And, in some embodiments, the inflatable cushion module 4 further includes a release valve 48, which is communicated with the side surface of the frame 20 of the display body 2 and communicated with the air passage 43 and the air cushion 41, It is used to relieve the pressure of the air cushion 41 . As for the control module 49, it is electrically connected to the gas pump 42, the air pressure sensor 44, the contact sensor 46, the release valve 48, the battery 491 and other components, so as to control the gas through the corresponding signals sent by the air pressure sensor 44 and the contact sensor 46. The pump 42 is activated or deactivated, or the release valve 48 is actuated to release pressure by means of these signals.

Please refer to FIG. 2 and FIG. 3 at the same time. FIG. 3 is a schematic cross-sectional structure diagram of the inflatable cushion module of the head-mounted virtual reality display device according to the first preferred embodiment of the present invention. As shown in FIG. 2 and FIG. 3 , in this embodiment, the substrate 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 arranged correspondingly in sequence, so the After the assembly is completed, as shown in FIG. 3 , one side of the substrate 40 is directly corresponding to the inside of the frame 20 , and the other side is the inflatable cushion 41 , that is, the inflatable cushion 41 and the gas channel 43 are disposed in the substrate 40 and the foam body 45. In some embodiments, the air passage 43 is formed by connecting a plurality of tiny hollow hoses, but not limited to this, and the air passage 13 is arranged between the inflatable cushion 41 and the foam body 45, and is connected with the inflator. The pads 41 communicate with each other for gas circulation and transmission. In this embodiment, the inflatable cushion 41 may be, but not limited to, an integrally formed inflatable and expandable 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 are corresponding to the plurality of inflatable cushion holes of the air cushion 41. The holes of the air cushion are engaged and positioned and communicate with the air passage 43 and the air cushion 41 , so as to realize the air circulation between the air passage 43 and the air cushion 41 . And, the gas pump 42 is communicated with the gas channel 43 for introducing the gas into the gas channel 43, so as to further inflate the inflatable cushion 41; and in this embodiment, the foam body 45 may be but not limited to A memory foam body, and because the inflatable cushion 41 is adjacent to the foam body 45, when the inflatable cushion 41 is inflated, the shape of the foam body 45 can be adjusted accordingly, so that the foam body 45 can be adjusted accordingly. It can be adjusted to fit the user's face.

In this embodiment, the interlining cloth 47 can be made of a thin and comfortable cloth, which mainly fits the user's face and provides a soft and comfortable touch. And 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 to this, it is used to sense an external pressure, and can be based on the sensed external pressure. A signal is sent out, so that when the user wears the head-mounted virtual reality display device 1 of the present case on the head, the display body 2 is correspondingly arranged on the user's face, and when the display body 2 is arranged in the frame 20 . When the lining cloth 47 of the inflatable cushion module 4 is in contact with the user's face, the contact sensor 46 disposed between the lining cloth 47 and the foam body 45 can sense the generation of an external pressure, and then send An enable signal is sent to the control module 49 (as shown in FIG. 5 ), and the control module 49 drives the gas pump 42 to act according to the enable signal, so that the gas is introduced into the inflatable cushion 41 through the gas channel 43 to fill the inflatable cushion 41 The gas expands and makes the foam body 45 adjust its shape correspondingly in response to the external pressure given by the user's face and the constant pressure provided by the expansion of the inflatable cushion 41, so that the foam body 45 can be correspondingly attached. Fits the user's face and provides a soft and comfortable wearing experience.

As for the air pressure sensor 44, as shown in FIG. 2 and FIG. 3, it is disposed in the air channel 43, but not limited to this, for sensing the air pressure inside the inflatable cushion 41, and can transmit according to the sensed air pressure output a signal; for example, when it senses that the pressure inside the air 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 That is, the gas pump 42 is controlled to stop according to the disable signal, so as to stop inflating the inflatable cushion 41, and the most suitable air pressure value of the inflatable cushion 41 can be adjusted by setting the value of the threshold interval. It can provide users with a more comfortable wearing experience.

Please refer to FIG. 2 and FIG. 4 at the same time. FIG. 4 is a schematic cross-sectional structure diagram 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 FIG. 4 , in this embodiment, the substrate 40 , the inflatable cushion 41 , the air pump 42 , the air channel 43 , the air pressure sensor 44 , the foam body 45 , and the contact sensor 46 of the inflatable cushion module 4 The structure and operation mode of the components such as the lining cloth 47 are similar to those in the previous embodiment, so they will not be repeated here. And the foam body 45 is disposed between the substrate 40 and the lining cloth 47 . In other words, the gas channel 43 of this embodiment is arranged in the inflatable cushion 41 to directly transmit the gas to the inflatable cushion 41 , and the inflatable cushion 41 is covered by the foam body 45 . When the air pump 42 After the actuation, the gas will be transmitted into the inflatable cushion 41 through the air passage 43, so that the inflatable cushion 41 is inflated and expanded, thereby providing a constant pressure. At this time, the foam body 45 covering the inflatable cushion 41 can respond to the user The shape of the face and the pressure provided by the inner air cushion 41 can be adjusted accordingly, so that it can be adjusted according to the shape of the user's face and provide a soft, air-cushioned, cushioned and comfortable wearing experience.

Please refer to FIG. 5 , which is a schematic structural diagram of the control system of the inflatable cushion module of the head-mounted virtual reality display device according to the preferred embodiment of the present invention. In this embodiment, the inflatable cushion module 4 of the head-mounted virtual reality display device 1 further has a control system, and the control system includes a control module 49 , a battery 491 and a release valve 48 , wherein the control module 49 is connected with the control module 49 , respectively. The gas pump 42, the air pressure sensor 44, the contact sensor 46 and the release valve 48 are electrically connected, and respectively receive signals from the air pressure sensor 44 and the contact sensor 46, and control the gas pump 42 to drive or stop according to the received signals, and when After the control module 49 of the control system drives the gas pump 42 to act, the gas pump 42 will drive the gas into the gas channel 43 , and then introduce the gas into the inflatable cushion 41 , and monitor its interior through the air pressure sensor 44 disposed in the gas channel 43 . When the gas pressure is higher or lower than a certain threshold value interval, a disable signal or an enable signal is sent to the control unit 49 to drive or stop the operation of the gas pump 42 again. In addition, as mentioned above, the release valve 48 is a pressure regulating mechanism, which is arranged in communication with the side surface of the frame 20 of the display body 2 (as shown in FIG. 1A and FIG. 1B ), and is connected with the gas channel 43 and the inflation gas The pad 41 is connected and is electrically connected with the control module 49 , so when the control module 49 receives a pressure relief signal sent by the contact sensor 46 , it can correspondingly control the release valve 48 to perform pressure relief action. As for the position where the control module 49 is set, it is set on the inner side of the frame 20 of the display body 2 , for example, it can be set on the inner side of the release valve 48 or the position adjacent to the gas pump 42 , which is not limited to this. . In addition, the battery 491 can be, but not limited to, a lithium battery or a mercury battery for providing power to the control module 49 , and its location is also arranged inside the frame 20 of the display body 2 , and can also be adjacent to The inner side of the release valve 48 or other suitable positions are not limited thereto.

Please refer to FIG. 1A , FIG. 1B , FIG. 2 and FIG. 5 at the same time, when the user sets the head-mounted virtual reality display device 1 of the present case on his head, he can adjust the position of the positioning strap 3 , so that the display body 2 can be correspondingly arranged on the user's face. At this time, the inflatable cushion module 4 arranged in the frame 20 of the display body 2 will be in contact with the user's face. Take this embodiment as an example , the lining cloth 47 arranged on the outermost layer will be in contact with the user's face, and at the same time of contact, the contact sensor 46 will correspondingly sense the generation of an external pressure, so the contact sensor 46 will respond to the external pressure. The pressure sends an enabling signal to the control module 49, and the control module 49 drives the gas pump 42 to act according to the received enabling signal, so that the gas is introduced into the inflatable cushion 41 through the gas channel 43, and the inflatable cushion 41 is filled with gas to generate By expanding, the foam body 45 can also adjust its shape in response to the external pressure on the user's face and the expansion of the inflatable cushion. In addition, when the gas pump 42 drives 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 . When the internal pressure is higher than a certain threshold range, the air pressure sensor 44 will send a disable signal to the control module 49, and the control module 49 can control the gas pump 42 to stop the operation according to the disable signal, so as to avoid inflation Excessive pressure of the cushion 41 causes discomfort to the user's face. Of course, if the internal pressure of the inflatable cushion 41 is detected to be lower than this specific threshold range, the pressure sensor 44 will also send an enabling signal to the control module 49, and the control module 49 can drive the gas pump 42 to act again according to the enabling signal. Through the detection and regulation of the air pressure sensor 44 , the expansion degree of the inflatable cushion 41 can be adjusted intelligently. Therefore, when the user wears it, the foam body 45 can also adjust its shape correspondingly according to the expansion degree of the inflatable cushion 41 . , so that it is close to the shape of the user's face without causing the problem of non-fitting. At the same time, due to the inflation and expansion of the inflatable cushion 41, the user can be provided with a cushioning, soft and fluffy, comfortable wearing experience.

In addition, the inflatable cushion module 4 of this embodiment has an air pressure adjustment function. As shown in FIG. 1A , FIG. 1B , FIG. 2 and FIG. 5 , the inflatable cushion module 4 of the present embodiment includes a release valve 48 , which is but is not limited to a switchable valve structure, and is disposed on the display body 2 on the side surface of the frame 20. And as shown in FIG. 2 , it can be seen that the gas channel 43 may further include a release valve opening 43a, the inflatable cushion 41 may also include another release valve port 41a and other structures, all of which are correspondingly arranged and communicated with the release valve 48 . And as mentioned above, the release valve 48 is electrically connected to the control module 46 for releasing the gas in the inflatable cushion 41 through the release valve port 41a thereof and the release valve opening 43a of the gas passage 43, and released by the release valve 48 Released outside the head-mounted virtual reality display device 1 . Therefore, when the user starts to take off the head-mounted virtual reality display device 1, and the contact sensor 46 senses that the external pressure provided by the user's face begins to disappear, it sends a disable signal and a pressure release signal to the control Module 49, after the control module 49 receives the disabling signal and the pressure relief signal, it will control the gas pump 42 to stop according to the disabling signal, and will also drive the release valve 48 to open according to the pressure relief signal, so that the gas has been inflated. At least part of the gas inside the inflatable cushion 41 is released to the outside of the head-mounted virtual reality display device 1 via the release valve 48 . In this way, the inflatable cushion module 4 can automatically and intelligently adjust the air pressure inside it according to the use state, which can prevent the inflatable cushion 41 from being in an inflated state for a long time and cause a shortened service life, and can also provide the user with the most comfortable Wear and use the head-mounted virtual reality display device 1 of this case in the state of

In other embodiments, the release valve 48 can also be a knob (not shown), but not limited thereto. The release valve 48 is manually actuated, and the release valve 48 is opened or closed by tightening or unscrewing the knob. Thereby, the user can adjust the internal air pressure of the inflatable cushion module 4 through the knob, and according to the user's needs, turn the knob to open the release valve 48 and connect it to the head-mounted virtual reality display device 1 In addition, the gas inside the inflatable cushion 41 is released; and after adjusting to an appropriate pressure, the release valve 48 is closed by tightening the knob again to avoid excessive release of gas and insufficient pressure. The setting of the knob enables the inflatable inflatable cushion 41 to closely fit the user's face without being too tight, so as to enable the user to wear and use the head-mounted virtual reality display device of the present case in the most comfortable state. 1.

6A and 6B are schematic exploded structural views of the gas pump according to the preferred embodiment of the present invention from different viewing angles, FIG. 7 is a cross-sectional structural schematic view of the piezoelectric actuator shown in FIGS. 6A and 6B , and FIG. 8 is a schematic view of FIGS. 6A and 6B A schematic diagram of the cross-sectional structure of the gas pump shown. As shown in FIGS. 6A, 6B, 7 and 8, the gas pump 42 is a piezoelectrically actuated gas pump, and includes an air intake plate 421, a resonance plate 422, a piezoelectric actuator 423, insulating plates 424a, 424b and conductive plates Sheet 425 and other structures, wherein the piezoelectric actuator 423 is arranged corresponding to the resonance sheet 422, and the air intake plate 421, the resonance sheet 422, the piezoelectric actuator 423, the insulating sheet 424a, the conductive sheet 425 and another insulating sheet The sheets 424b and the like are stacked in sequence, and the assembled cross-sectional view is shown in FIG. 8 .

In this 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 four, but not limited thereto. The air inlet hole 421a penetrates through the air inlet plate 421, and is used for gas to flow into the gas pump 42 from the at least one air inlet hole 421a according to the action of atmospheric pressure from outside the device. The intake plate 421 has at least one bus row hole 421b corresponding to the at least one intake hole 421a on the other surface of the intake plate 421 . There is a central concave portion 421c at the center of the bus bar hole 421b, 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 air inlet hole 421a can be guided and converged Concentrate on the central recess 421c for gas transfer. In this embodiment, the air inlet plate 421 has an integrally formed air inlet hole 421a, a bus bar hole 421b and a central concave portion 421c, and a confluence chamber for converging gas is formed at the central concave portion 421c for temporarily storing the gas. . In some embodiments, the material of the air intake plate 421 may be, for example, but not limited to, stainless steel. In other embodiments, the depth of the bus chamber formed by the central concave portion 421c is the same as the depth of the bus hole 421b, but not limited thereto. The resonance plate 422 is made of a flexible material, but not limited thereto, and a hollow hole 422c is provided on the resonance plate 422, which is disposed corresponding to the central concave portion 421c of the air inlet plate 421, so as to allow the gas to circulate . In other embodiments, the resonant plate 422 may be formed 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 bracket 4233 and a piezoelectric sheet 4234 , wherein the piezoelectric sheet 4234 is attached to the first part of the suspension plate 4231 . The surface 4231c is used to apply a voltage to generate deformation to drive the suspension board 4231 to bend and vibrate, and the at least one bracket 4233 is connected between the suspension board 4231 and the outer frame 4232. In this embodiment, the bracket 4233 is connected to the Between the suspension board 4231 and the outer frame 4232, the two ends are respectively connected to the outer frame 4232 and the suspension board 4231 to provide elastic support, and there is at least one gap 4235 between the bracket 4233, the suspension board 4231 and the outer frame 4232. , the at least one gap 4235 is communicated with the gas channel 43 for gas circulation. It should be emphasized that the type and quantity of the hover board 4231 , the outer frame 4232 and the brackets 4233 are not limited to the foregoing embodiments, and can be changed according to practical application requirements. In addition, the outer frame 4232 is disposed around the outer side of the suspension board 4231, and has a conductive pin 4232c protruding outward for power supply connection, but not limited thereto.

The suspension board 4231 is a stepped surface structure (as shown in FIG. 7 ), which means that the second surface 4231b of the suspension board 4231 further has a convex portion 4231a, and the convex portion 4231a can be but not limited to a circular convex up the structure. The protruding portion 4231a of the hoverboard 4231 is coplanar with the second surface 4232a of the outer frame 4232, and the second surface 4231b of the hoverboard 4231 and the second surface 4233a of the bracket 4233 are also coplanar, and the protruding portion of the hoverboard 4231 is also coplanar. 4231a and the second surface 4232a of the outer frame 4232, the second surface 4231b of the suspension board 4231 and the second surface 4233a of the bracket 4233 have a specific depth. The first surface 4231c of the suspension board 4231 is a flat coplanar structure with the first surface 4232b of the outer frame 4232 and the first surface 4233b of the bracket 4233, and the piezoelectric sheet 4234 is attached to the flat surface of the suspension board 4231. at the first surface 4231c. In other embodiments, the shape of the suspension board 4231 can also be a plate-like square structure with flat surfaces on both sides. In some embodiments, the suspension board 4231 , the bracket 4233 and the outer frame 4232 can be integrally formed, and can be formed of a metal plate, such as but not limited to stainless steel. In other embodiments, the side length of the piezoelectric sheet 4234 is smaller than the side length of the suspension board 4231 . In other embodiments, the side length of the piezoelectric sheet 4234 is equal to the side length of the suspension board 4231 , and is also designed to be a square plate-like structure corresponding to the suspension board 4231 , but not limited thereto.

In this embodiment, as shown in FIG. 6A , the insulating sheet 424a , the conductive sheet 425 and the other insulating sheet 424b of the gas pump 42 are sequentially disposed under the piezoelectric actuator 423 , and their shapes are roughly corresponding to the piezoelectric actuator 423 . In the form of the outer frame 4232 of the piezoelectric actuator 423 . In some embodiments, the insulating sheets 424a and 424b are made of insulating material, such as but not limited to plastic, so as to provide an insulating function. In other embodiments, the conductive sheet 425 may be formed 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 can also be disposed on the conductive sheet 425 to realize the electrical conduction function.

In this embodiment, as shown in FIG. 8 , the gas pump 42 is sequentially stacked by an air intake plate 421 , a resonance sheet 422 , a piezoelectric actuator 423 , an insulating sheet 424 a , a conductive sheet 425 , and another insulating sheet 424 b , etc. formed, and there is a gap h between the resonance plate 422 and the piezoelectric actuator 423 . In this embodiment, it is the gap between the resonance plate 422 and the periphery of the outer frame 4232 of the piezoelectric actuator 423 A filling material, such as but not limited to conductive glue, is filled in h, so that the depth of the gap h can be maintained between the resonant plate 422 and the convex portion 4231a of the suspension plate 4231 of the piezoelectric actuator 423, so as to guide the airflow The flow is more rapid, and since the convex portion 4231a of the suspension plate 4231 and the resonance plate 422 maintain a proper distance, the contact interference is reduced, and the noise generation can be reduced. In other embodiments, the height of the outer frame 4232 of the high-voltage electric actuator 423 can also be increased to increase a gap when it is assembled with the resonance plate 422 , but not limited to this.

In this embodiment, after the air intake plate 421 , the resonance sheet 422 and the piezoelectric actuator 423 are assembled in sequence, the resonance sheet 422 has a movable portion 422 a and a fixed portion 422 b . A chamber for converging gas is formed together with the gas inlet plate 421 thereon, and a first chamber 420 is further formed between the resonance plate 422 and the piezoelectric actuator 423 for temporarily storing the gas, and the first chamber 420 is communicated with the cavity at the central concave portion 421c of the air inlet plate 421 through the hollow hole 422c of the resonant plate 422 , and the two sides of the first cavity 420 are connected between the brackets 4233 of the piezoelectric actuator 423 . The gap 4235 is in communication with the gas channel 43 .

FIGS. 9A to 9E are flow charts showing the operation of the gas pump shown in FIGS. 6A and 6B. Please refer to FIG. 8 and FIG. 9A to FIG. 9E , the operation flow of the gas pump of the present application is briefly described as follows. When the gas pump 42 is actuated, the piezoelectric actuator 423 is actuated by a voltage to reciprocate vertically with the support 4233 as a fulcrum. As shown in FIG. 9A, when the piezoelectric actuator 423 is actuated by a voltage and vibrates downward, since the resonant plate 422 is a light and thin sheet-like structure, when the piezoelectric actuator 423 vibrates, The resonant sheet 422 will also perform vertical reciprocating vibration with the resonance, that is, the portion of the resonance sheet 422 corresponding to the central concave portion 421c will also be deformed by bending vibration, that is, the portion corresponding to the central concave portion 421c is the resonant sheet 422. The movable portion 422a is formed so that when the piezoelectric actuator 423 bends and vibrates downward, the movable portion 422a of the resonance plate 422 corresponding to the central concave portion 421c will be brought in and pushed by the gas and the piezoelectric actuator 423 will vibrate. driven by the piezoelectric actuator 423, and as the piezoelectric actuator 423 bends and vibrates and deforms downward, the gas enters through at least one air inlet hole 421a on the air inlet plate 421, and passes through at least one bus bar hole 421b to be collected to the center of the center At the concave portion 421c, the cavity 422c on the resonance plate 422 corresponding to the central concave portion 421c flows downward into the first chamber 420. Afterwards, driven by the vibration of the piezoelectric actuator 423, the resonant plate 422 also resonates and vibrates vertically, as shown in FIG. vibrates downward, and sticks against the convex part 4231a of the suspension plate 4231 of the piezoelectric actuator 423, so that the area other than the convex part 4231a of the suspension plate 4231 and the fixed parts 422b on both sides of the resonance plate 422 are connected. The space between the confluence chambers will not be reduced, and the deformation of the resonant sheet 422 is used to compress the volume of the first chamber 420 and close the intermediate circulation space of the first chamber 420, so that the gas in it is pushed to the two sides. side flow, and then pass through the gap 4235 between the brackets 4233 of the piezoelectric actuator 423 and cross flow downward. After that, as shown in FIG. 9C, the movable portion 422a of the resonance plate 422 is deformed by bending and vibrating upwards, and returns to the initial position, and the piezoelectric actuator 423 is driven by the voltage to vibrate upwards, which also squeezes the first chamber. 420, but at this time, since the piezoelectric actuator 423 is lifted upward, the gas in the first chamber 420 will flow to both sides, and the gas will continue to flow from at least one inlet hole on the inlet plate 421. 421a enters, and then flows into the cavity formed by the central recess 421c. Afterwards, as shown in FIG. 9D, the resonance plate 422 is resonated upward by the upward vibration of the piezoelectric actuator 423. At this time, the movable portion 422a of the resonance plate 422 also vibrates upwards, thereby slowing down the continuous self-emission of the gas. At least one air intake hole 421a on the air intake plate 421 enters, and then flows into the cavity formed by the central concave portion 421c. Finally, as shown in FIG. 9E, the movable portion 422a of the resonance plate 422 also returns to the initial position. From this embodiment, it can be seen that when the resonance plate 422 performs vertical reciprocating vibration, it can be actuated by the piezoelectric actuator. The gap h between the two structures can increase the maximum distance of the vertical displacement. In other words, setting the gap h between the two structures can make the resonance plate 422 have a larger vertical displacement during resonance. Therefore, a pressure gradient is generated in the design of the flow channel of the gas pump 42, so that the gas flows at a high speed, and the gas is transmitted from the suction end to the discharge end through the impedance difference between the inlet and outlet directions of the flow channel to complete the gas delivery operation. Even when there is air pressure at the discharge end, the gas can still be continuously pushed into the gas channel 43, and the effect of muteness can be achieved. In this way, repeating the action of the gas pump 42 in Figs. 9A to 9E can make the gas pump 42 generate An outside-in gas transport.

As mentioned above, through the action of the above-mentioned gas pump 42, the gas is introduced into the gas channel 43, 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 follow the inflatable cushion. The shape of the inflatable cushion 41 is adjusted accordingly to make it close to the shape of the user's face without causing the problem of non-fitting. At the same time, due to the inflation and expansion of the inflatable cushion 41, the user can be provided with cushioning, soft and fluffy , Comfortable and fit wearing experience. .

To sum up, the present application provides a head-mounted virtual reality display device, which can be widely used in wearable devices worn on the face. It can cause the inflatable cushion module to automatically and intelligently inflate the inflatable cushion, and make the inflatable cushion expand, so that the foam body can be adjusted correspondingly, so that it can be fitted and fixed with the user's face, and can adapt to It is adjusted to the different shapes of the individual face for a soft and comfortable fit. In addition, the inflatable cushion module has an air pressure adjustment function, which can automatically and intelligently adjust the internal air pressure according to the use state, which not only prolongs the service life of the inflatable cushion, but also allows the user to wear the headset under the most comfortable pressure. virtual reality display device. In addition, the user can also manually adjust the internal pressure of the inflatable cushion to provide more convenient operation and wider application.

This case can be modified by Shi Jiangsi, a person who is familiar with this technology, but all of them do not deviate from the protection of the scope of the patent application attached.

【Symbol Description】

1: Head-mounted virtual reality display device

2: Display body

20: Border

200: Opening

21: Pedestal

21a: Buckle

22: Optical Components

23: Interior Space

3: Positioning the straps

4: Inflatable cushion module

40: Substrate

400: Opening

41: Inflatable cushion

41a: Release valve port

42: Gas pump

420: First Chamber

421: Deflector

421a: Orifice

421b: Busbar hole

421c: Center recess

422: Resonance sheet

422a: Movable part

422b: Fixed part

422c: Hollow Hole

423: Piezoelectric Actuators

4231: Hoverboard

4231a: convex part

4231b: Second Surface

4231c: First Surface

4232: Outer frame

4232a: Second Surface

4232b: First surface

4232c: Conductive pins

4233: Bracket

4233a: Second Surface

4233b: First Surface

4234: Piezoelectric Sheet

4235: void

424a, 424b: insulating sheet

425: Conductive sheet

425a: Conductive pins

43: Gas channel

43a: Release valve opening

44: Air pressure sensor

45: Foam body

46: Contact sensor

47: Interlining

48: Release valve

49: Control module

491: Battery

5: Electronic device

Claims (12)

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.

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