Head-mounted display device

Abstract

A head-mounted display device disclosed by the present invention comprises a display main body and a plurality of microphones, the display main body comprises a shell, the shell is provided with a plurality of pickup holes extending along the length direction of the shell, the microphones are installed in the shell, and one microphone is arranged corresponding to one pickup hole. According to the technical scheme, the pickup effect of the head-mounted display equipment is improved.

Description

Technical Field

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

[0002] Head-mounted display devices have very broad application prospects in many fields such as communications, education, medical treatment, culture, and manufacturing. Vision, hearing, and touch are the three major ways for people to interact with the outside world. With the development of the times, people's requirements for vision, hearing, touch, etc. are gradually increasing. However, the sound pickup effect of current head-mounted display devices is too poor to meet existing needs. Summary of the invention

[0003] The main purpose of the present invention is to provide a head-mounted display device, aiming to improve the sound pickup effect of the head-mounted display device.

[0004] To achieve the above-mentioned object, the head mounted display device proposed by the present invention comprises:

[0005] A display body, the display body comprising a shell, the shell being provided with a plurality of sound pickup holes extending along a length direction of the shell; and

[0006] A plurality of microphones are installed on the housing, and one microphone is arranged corresponding to one sound pickup hole.

[0007] Optionally, a limiting column is provided at the edge of the sound pickup hole, a positioning hole is provided on the microphone, and the limiting column is inserted into the positioning hole.

[0008] Optionally, at least two limiting posts are provided corresponding to the same sound pickup hole, and the two limiting posts are respectively provided at opposite corners of the corresponding sound pickup hole.

[0009] Optionally, there are 3 to 8 sound pickup holes.

[0010] Optionally, the shell includes a front shell and a rear shell, the rear shell is a side facing the human body, and the plurality of sound pickup holes are all located on an upper end surface of the rear shell.

[0011] Optionally, the upper end surface of the rear shell is inclined downward in a direction close to the human body.

[0012] Optionally, the plurality of sound pickup holes are arranged to extend in a vertical direction.

[0013] Optionally, the shell includes a front shell and a rear shell, the rear shell is the side facing the human body, an installation groove is provided on the inner side of the rear shell, one installation groove is corresponding to one sound pickup hole, the installation groove is connected with the sound pickup hole, and the microphone is sealed and pasted in the installation groove.

[0014] Optionally, the head mounted display device further comprises a sealing mesh cloth and a sealing foam adhesive, and the sealing mesh cloth and the microphone are adhered to the corresponding sound pickup hole via the sealing foam adhesive.

[0015] Optionally, the head mounted display device further includes a flexible circuit board, and the plurality of microphones are connected together via the flexible circuit board.

[0016] The head-mounted display device in the technical solution of the present invention includes a display body and multiple microphones. The display body includes a shell, and the multiple microphones are installed on the shell. The shell is provided with multiple sound pickup holes extending along the length direction of the shell, and one sound pickup hole corresponds to one microphone setting. Sound is picked up from multiple different positions through the multiple sound pickup holes, thereby increasing the sound pickup range of the head-mounted display device, thereby improving the sound pickup effect of the head-mounted display device, and thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a rear shell at one viewing angle in an embodiment of a head mounted display device of the present invention;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the middle and rear shell from another perspective;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 A cross-sectional view of the middle and rear shell from one perspective;

[0022] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0023] Description of Figure Numbers:

[0024]

[0025]

[0026] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Reference Figures 1 to 3 The present invention provides a head mounted display device, comprising:

[0032] A display body, the display body comprising a shell, the shell being provided with a plurality of sound pickup holes 121 extending along the length direction of the shell; and

[0033] A plurality of microphones 21 are installed on the housing, and one microphone 21 is disposed corresponding to one sound pickup hole 121 .

[0034] The head-mounted display device in the technical solution of the present invention includes a display body and multiple microphones 21. The display body includes a shell, and the multiple microphones 21 are installed on the shell. The shell is provided with multiple sound pickup holes 121 extending along the length direction of the shell, and one sound pickup hole 121 corresponds to one microphone 21. Sound is picked up from multiple different positions through the multiple sound pickup holes 121, thereby increasing the sound pickup range of the head-mounted display device, thereby improving the sound pickup effect of the head-mounted display device, and thereby improving the user experience.

[0035] The head mounted display device in the technical solution of the present invention can be AR glasses, VR glasses, MR glasses, etc. The text, pictures, animations and other contents in the textbook can be presented to students in the form of AR, so that students can understand and remember the knowledge more intuitively. Or the real scene can be simulated through virtual reality technology, so that players can experience an immersive gaming experience in the game.

[0036] Specifically, a limiting column 123 is provided on the edge of the pickup hole 121, and a positioning hole is provided on the microphone 21, and the limiting column 123 is inserted into the positioning hole. By providing the limiting column 123, the microphone 21 is limited, thereby further increasing the stability of the microphone 21. The limiting column 123 and other structures are simple and the installation cost is low. In other embodiments, corresponding mounting holes can be provided on the microphone 21 and the shell, and then the microphone 21 is screwed to the shell through screw connectors and corresponding mounting holes. The screw locking method is simple and reliable, has strong stability, low cost, and is easy to install, thereby improving installation efficiency and cost.

[0037] Furthermore, at least two limiting posts 123 are provided corresponding to the same sound pickup hole 121, and the two limiting posts 123 are respectively provided at the diagonal positions of the corresponding sound pickup hole 121. By providing two positioning holes at the diagonal positions of the sound pickup hole 121, the microphone 21 is limited from different directions, thereby further increasing the stability of the microphone 21. Of course, in other embodiments, the two limiting posts 123 may also be respectively provided at two adjacent corners of the sound pickup hole 121.

[0038] In this embodiment, the sound pickup holes 121 are provided in 3 to 8 numbers. If the sound pickup holes 121 are provided in more than 8 numbers, a corresponding number of microphones 21 need to be provided, thereby increasing the cost of the head-mounted display device. At the same time, too many sound pickup holes 121 also need to occupy a larger installation space, thereby increasing the volume of the head-mounted display device, which is not conducive to the miniaturization of the head-mounted display device. At the same time, the microphone 21 needs to be electrically connected to the main control board through a line. If more sound pickup holes 121 are provided, the complexity of the internal circuit of the head-mounted display device is increased. If the sound pickup holes 121 provided are less than 3, the head-mounted display device has fewer sound pickup holes 121, and the sound pickup effect of the head-mounted display device is poor, thereby reducing the user experience.

[0039] It is understandable that in order to increase the comfort of the head-mounted display device, the heavier components are generally installed on the rear shell 12, because if the mass of the front shell is large, the head-mounted display device may tilt forward, thereby causing the upper end of the shell to be spaced from the human body, while the lower end of the shell is subjected to greater pressure, thereby reducing the discomfort when wearing the head-mounted display device. Therefore, in this embodiment, the shell includes a front shell and a rear shell 12, the rear shell 12 is a side facing the human body, and the plurality of pickup holes 121 are all located on the upper end surface of the rear shell 12. That is, the microphone 21 will also be installed on the rear shell 12 accordingly, so that the center of the head-mounted display device moves backward, so that when the human body wears the head-mounted display device, the front shell will not tilt forward, so that the part of the rear shell 12 that contacts the human body can be evenly stressed, thereby increasing the user experience.

[0040] Reference Figure 4 and Figure 5 , further, the upper end surface of the rear shell 12 is tilted downward in the direction close to the human body. It can be understood that the rear shell 12 includes a first shell and a second shell, wherein the first shell is the upper end surface of the rear shell 12, the sound pickup hole 121 is also provided on the first shell, and the second shell is used to abut against the forehead of the user, and the connection between the first shell and the second shell is in an arc transition, thereby avoiding damage to the human body by the edges and corners at the connection between the first shell and the second shell; further, the upper end surface of the rear shell 12 is tilted downward in the direction close to the human body, that is, the first shell is tilted downward in the direction close to the human body, which increases the installation space between the front shell and the rear shell 12 on the one hand, and also makes the user, when subjected to external impact, if the first shell is arranged perpendicular to the second shell, then when the user is impacted in the horizontal direction, the impact of the first shell on the forehead of the human body is greater, and if the first shell is tilted, the first shell can disperse the impact force in the horizontal direction, thereby reducing damage to the human body.

[0041] It can be understood that since the sound pickup hole 121 is arranged on the upper end surface of the rear shell 12, dust and other impurities are easily introduced into the sound pickup hole 121, and the sound pickup hole 121 is easily blocked, thereby reducing the sound pickup effect of the microphone 21; therefore, in this embodiment, the upper end surface of the rear shell 12 is arranged to be inclined downward in the direction close to the human body, so that the dust falling into the rear shell 12 will fall downward along the inclined direction of the rear shell 12, thereby reducing the accumulation of dust on the rear shell 12 and reducing the dust falling into the sound pickup hole 121. In this way, the sound pickup effect of the microphone 21 is improved.

[0042] Furthermore, the first shell and the second shell are integrally injection molded, thereby increasing the connection strength between the first shell and the second shell, and the injection molding cost is low.

[0043] The microphone 21 is arranged relative to the sound pickup hole 121, that is, the microphone 21 is installed on the side of the rear shell 12 facing the front shell, and is arranged relative to the sound pickup hole 121, that is, the microphone 21 is installed in close contact with the rear shell 12, so as to ensure the sealing of the connection between the microphone 21 and the sound pickup hole 121, that is, when the sound pickup hole 121 extends along the thickness direction of the upper end surface of the rear shell 12, the path between the sound pickup hole 121 and the microphone 21 will be shorter, and the sound pickup effect will be better. However, in this embodiment, the plurality of sound pickup holes 121 are all arranged to extend in the vertical direction. That is, the sound pickup hole 121 of the present application does not extend along the thickness direction of the upper end surface of the rear shell 12, but extends along the vertical direction of the human body. The reason for this is that if the sound pickup hole 121 extends along the thickness direction of the upper end surface of the rear shell 12, although the length of the sound pickup hole 121 is the shortest at this time, the direction of the sound pickup hole 121 is facing the forehead of the human body, so that the sound reception of the microphone 21 is easily interfered by the forehead of the human body, thereby reducing the sound reception effect of the head-mounted display device.

[0044] Therefore, the sound pickup hole 121 in the technical solution of the present invention extends in the vertical direction, so that the opening direction of the sound pickup hole 121 is set, thereby reducing the sound pickup effect of the microphone 21 due to interference from the human body, thereby improving the sound pickup effect of the microphone 21 and improving the user experience.

[0045] Reference Figure 3 and Figure 4In this embodiment, the shell includes a front shell and a rear shell 12, the rear shell 12 is the side facing the human body, and an installation groove 122 is provided on the inner side of the rear shell 12, one installation groove 122 is corresponding to one sound pickup hole 121, the installation groove 122 is connected to the sound pickup hole 121, and the microphone 21 is sealed and pasted in the installation groove 122. Among them, by setting the installation groove 122, the installer can accurately know the installation position of the microphone 21, thereby improving the installation efficiency of the installer, and at the same time reducing the installation error of the microphone 21, thereby improving the yield rate of the head-mounted display device; further, the microphone 21 is pasted in the installation groove 122, and the installation groove 122 can also be used as a glue storage groove. After the microphone 21 is pasted in the installation groove 122, glue is poured into the installation groove 122, so that not only the microphone 21 is firmly fixed in the installation groove 122 of the rear shell 12, thereby improving the stability of the microphone 21; at the same time, the sealing effect between the microphone 21 and the sound pickup hole 121 is further increased, thereby improving the sound pickup effect of the microphone 21, thereby improving the user experience.

[0046] Specifically, the front shell and the rear shell 12 are detachably connected. On the one hand, the detachable connection method is simple and reliable, which is convenient for the inspection and maintenance of the components inside the head-mounted display device; in one embodiment, the detachable connection can be to set screw holes on the front shell and the rear shell 12, and then the front shell and the rear shell 12 are detachably connected through screw connectors. The screw locking method is convenient to install, has high installation strength and low cost; in another embodiment, the detachable connection between the front shell and the rear shell 12 can also be achieved by setting a snap-on structure on the front shell and the rear shell 12, and then performing a snap-on connection. The snap-on connection method is simple and reliable, and does not require the aid of other installation tools; at the same time, compared with the screw locking installation method, the snap-on connection will not leave any installation holes on the surface of the front shell and the rear shell 12, thereby increasing the aesthetic effect of the head-mounted display device and thereby improving the user experience.

[0047] Furthermore, the head mounted display device further comprises a sealing mesh 24 and a sealing foam adhesive 23, wherein the sealing mesh 24 and the microphone 21 are adhered to the corresponding sound pickup hole 121 through the sealing foam adhesive 23. The sealing foam adhesive 23 has high adhesion strength, stable performance, and low cost, thereby reducing the possibility of the microphone 21 loosening, thereby increasing the service life of the head mounted display device.

[0048] Furthermore, the sealing mesh 24 prevents dust accumulated in the sound pickup hole 121 from falling into the sound receiving hole of the microphone 21, thereby blocking the sound receiving hole of the microphone 21 and reducing the user experience. Therefore, by setting the sealing mesh 24, dust is isolated from falling between the sound pickup hole 121 and the microphone 21, and the sealing mesh 24 does not affect the normal passage of sound.

[0049] In this embodiment, the head mounted display device further includes a flexible circuit board 22, and the plurality of microphones 21 are connected together through the flexible circuit board 22. It can be understood that the microphone 21 converts the sound signal into an electrical signal and outputs it, which can be to transmit the electrical signal to the speaker, and then the speaker converts the electrical signal into a sound signal and then transmits it to the user's ear. Of course, it can also transmit the electrical signal to the lighting component to instruct the corresponding lighting component to emit light of the corresponding color, that is, the sound received by the microphone 21 can have different transmission paths. In the technical solution of the present invention, a flexible circuit board 22 is set for each microphone 21, and each flexible circuit board 22 can analyze and process the electrical signal converted by the microphone 21, so as to make corresponding processing. If multiple microphones 21 are connected to the main control board of the head mounted display device through wires, the main control board needs to perform more data analysis and processing, and it is necessary to increase the function integration of the main control board, thereby increasing the volume and cost of the main control board. Then, the technical solution of the present invention is equivalent to integrating the corresponding functions of the main control board into the flexible circuit board 22, which is equivalent to decomposing a large main control board into a small main control board and multiple small flexible circuit boards 22, so as to facilitate the installation of the user and the installation layout in the housing. At the same time, the flexible circuit board 22 is safer and more stable than the guide.

[0050] Furthermore, it also includes a plurality of reinforcing plates 25, which are all installed on the flexible circuit board 22 and are located on the side of the flexible circuit board 22 away from the microphone 21, and one microphone 21 is provided corresponding to one reinforcing plate 25. It can be understood that the material of the flexible circuit board 22 is relatively soft, so that the microphone 21 is not easy to install during installation, and the flexible circuit board 22 and the sealing mesh 24 are also easy to wrinkle during pasting. If the flexible circuit board 22 is bent during installation, it is easy to cause the circuit on the flexible circuit board 22 to be damaged; therefore, by providing the reinforcing plates 25, the flexible circuit board 22 is more neat, which facilitates the installation and fixation of the microphone 21 and the flexible circuit board 22, and also facilitates the installation and fixation between the flexible circuit board 22 and the sealing mesh 24.

[0051] It should be noted that since multiple microphones 21 are connected through the same flexible circuit board 22, and the flexible circuit board 22 will eventually be electrically connected to the main control board of the head-mounted display device, and since the flexible circuit board 22 is flexible, in order to prevent the flexible circuit board 22 from shaking during the process of taking the head-mounted display device, some positions of the flexible circuit board 22 need to be pasted and fixed. At this time, a reinforcement plate 25 also needs to be set to facilitate the pasting and fixation of the flexible circuit board 22.

[0052] Furthermore, the flexible circuit board 22 is provided with an avoidance hole, which is connected to the sound pickup hole 121 and arranged opposite to the microphone 21, so that the sound can enter the microphone 21 through the sound pickup hole 121 and the avoidance hole in sequence.

[0053] In this embodiment, the flexible circuit board 22 also includes a displacement sensor 30, which is installed on the rear shell 12, and the displacement sensor 30 is located on the side of the rear shell 12 facing the human body. The displacement sensor 30 is electrically connected to the main control board. The displacement sensor 30 is used to sense the distance between it and the human body. When the human body wears the head-mounted display device, the displacement sensor 30 will detect that the distance between it and the human body reaches a predetermined value, thereby automatically controlling the head-mounted display device to start through the main control board. When the user takes off the head-mounted display device, the displacement sensor 30 will detect that the distance between it and the human body is greater than the predetermined value, thereby automatically controlling the head-mounted display device to turn off, thereby avoiding the situation where the user forgets to turn off the device after taking it off, reducing the power consumption of the head-mounted display device, and increasing the battery life of the head-mounted display device.

[0054] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A head mounted display device, It is characterized in that include: A display body, the display body comprising a shell, the shell being provided with a plurality of sound pickup holes extending along the length direction of the shell; and A plurality of microphones are installed on the housing, and one microphone is arranged corresponding to one sound pickup hole.

2. The head mounted display device according to claim 1, It is characterized in that A limiting column is arranged at the edge of the sound pickup hole, a positioning hole is arranged on the microphone, and the limiting column is inserted into the positioning hole.

3. The head mounted display device according to claim 2, It is characterized in that At least two limiting posts are provided corresponding to the same sound pickup hole, and the two limiting posts are respectively arranged at the diagonal positions of the corresponding sound pickup hole.

4. The head mounted display device according to claim 1, It is characterized in that The number of the sound pickup holes is 3 to 8.

5. The head mounted display device according to claim 1, It is characterized in that The shell comprises a front shell and a rear shell, the rear shell is a side facing the human body, and the plurality of sound pickup holes are all located on the upper end surface of the rear shell.

6. The head mounted display device according to claim 5, It is characterized in that The upper end surface of the rear shell is inclined downward in a direction close to the human body.

7. The head mounted display device according to claim 6, It is characterized in that The plurality of sound pickup holes are all extended along the vertical direction.

8. The head mounted display device according to claim 1, It is characterized in that The shell includes a front shell and a rear shell, the rear shell is the side facing the human body, and an installation groove is provided on the inner side of the rear shell, one installation groove is corresponding to one sound pickup hole, the installation groove is connected with the sound pickup hole, and the microphone is sealed and pasted in the installation groove.

9. The head mounted display device according to claim 8, It is characterized in that The head mounted display device further comprises a sealing mesh and a sealing foam adhesive, and the sealing mesh and the microphone are adhered to the corresponding sound pickup holes through the sealing foam adhesive.

10. The head mounted display device according to claim 1, It is characterized in that The head mounted display device further comprises a flexible circuit board, and the plurality of microphones are connected together via the flexible circuit board.

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