TW202146976A - Head mounted display - Google Patents

Abstract

A head mounted display including a frame, a display, and a forehead pad is provided. The frame has a body and a fixed rod, wherein the body has a first part, a second part and a connecting part connected between the first part and the second part, and the fixed rod is disposed on the first part. The display is arranged on the lower edge of the first part of the body. The forehead pad is arranged on the inner edge of the first part of the body, and has a forehead portion and a buckle portion. The buckle portion is buckled on the fixed rod, wherein the buckle portion is rotated relative to the fixed rod to adjust an angle between the forehead and the body.

Description

head mounted display

The present invention relates to a display, and more particularly, to a head mounted display device.

Augmented Reality (AR) glasses of the prior art, one way of wearing is to hang on the ears like ordinary glasses, and the other way of wearing is to be more tightly worn on the user's skull, It can be to add eye pads at the lens of the display to lean around the human eye.

However, due to the size of the user's head, the first method may have the problem of not wearing tightly enough, so when the user's head swings, the AR glasses are easy to loosen. In the second method, because the eye pads compress the blood vessels around the eyes for a long time, the eyes are prone to fatigue and hypoxia.

The "prior art" paragraph is only used to help understand the present disclosure, so the content disclosed in the "prior art" paragraph may contain some that do not constitute the prior art known to those with ordinary skill in the art. The content disclosed in the "prior art" paragraph does not represent the content or the problem to be solved by one or more embodiments of the present invention, and has been known or recognized by those with ordinary knowledge in the technical field before the application of the present invention.

The present invention provides a head-mounted display device which is comfortable to wear and conforms to various head shapes of users, and improves the wearing stability of users.

A head-mounted display device of the present invention includes a frame, a display and a forehead pad. The frame has a main body part and a fixed rod part, wherein the main body part has a first part, a second part and a connecting part connected between the first part and the second part, and the fixed rod part is arranged on the first part . The display is arranged on the lower edge of the first part of the main body part. The forehead pad is arranged on the inner edge of the first part of the main body, and has a forehead rest and a buckle part. The angle relative to the body part.

In an embodiment of the present invention, the aforementioned forehead pad is detachably assembled to the frame.

In an embodiment of the present invention, the shape of the above-mentioned body portion is fixed and has no deformability.

In an embodiment of the present invention, along a first direction, the first part is parallel to the first direction, the second part and the connecting part are inclined to the first direction, and the height of the second part is higher than that of the first part.

In an embodiment of the present invention, the inclination angle of the second portion relative to the first portion is between 20 and 90 degrees.

In an embodiment of the present invention, the above-mentioned fixed rod portion is a round rod or a polygonal rod.

In an embodiment of the present invention, the fixing rod portion has a first positioning structure, the buckle portion has a second positioning structure, and the first positioning structure and the second positioning structure conform to each other.

In an embodiment of the present invention, one of the above-mentioned first positioning structure and the second positioning structure is a convex point, and the other one of the first positioning structure and the second positioning structure is a concave point.

In an embodiment of the present invention, the frame further includes a signal input element disposed on the lower edge of the second portion, wherein the signal input element is electrically connected to the display.

In an embodiment of the present invention, the above-mentioned head-mounted display device further includes a signal cable embedded in the main body, wherein the signal input element is electrically connected to the display through the signal cable.

In an embodiment of the present invention, the forehead pad is higher than the display along the height direction.

In an embodiment of the present invention, a surface of the forehead rest portion relatively far from the buckle portion has a groove.

In an embodiment of the present invention, the above-mentioned head-mounted display device further includes a first elastic member disposed on the inner edge of the second portion.

In an embodiment of the present invention, the above-mentioned first elastic member includes a plurality of elastic ribs, and any two adjacent elastic ribs are separated by a certain distance.

In an embodiment of the present invention, the above-mentioned elastic ribs are arranged in a V-shape.

In an embodiment of the present invention, the above-mentioned first elastic member is a spring.

In an embodiment of the present invention, the head-mounted display device further includes an adjustment band extending from the body portion and located below the second portion.

In an embodiment of the present invention, the above-mentioned adjustment belt includes a belt body and an adjustment piece, the belt body is connected between the main body portion and the adjustment piece, and the adjustment piece is correspondingly located below the second portion.

In an embodiment of the present invention, the above-mentioned head-mounted display device further includes a second elastic member disposed on the inner edge of the adjustment belt.

In an embodiment of the present invention, the above-mentioned head-mounted display device further includes a goggle disposed on the outer edge of the first portion of the body portion, wherein the display is located between the goggle and the forehead pad.

Based on the above, the forehead pad of the head-mounted display device of the present invention can adjust the angle of the forehead rest portion relative to the body portion of the frame, so it can be applied to users with different head shapes.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

1 is a schematic diagram of a head-mounted display device according to an embodiment of the present invention, FIG. 2 is a partial exploded schematic diagram of the head-mounted display device of FIG. 1 from different viewing angles, and FIG. 3 is a configuration of the head-mounted display device of FIG. 1 . Schematic of wearing it on the user's head. Please refer to FIG. 1 , FIG. 2 and FIG. 3 simultaneously, the head-mounted display device 1 includes a frame 2 , a display 3 and a forehead pad 4 . The frame 2 has a body portion 21 and a fixed rod portion 22, wherein the shape of the body portion 21 is ring-like so as to be able to be fitted on the user's head, and the body portion 21 has a first portion 211 and a second portion 212 and a connecting portion 213 connected between the first portion 211 and the second portion 212 . The fixed rod portion 22 is disposed on the first portion 211 , and the axial direction of the fixed rod portion 22 is parallel to the second direction Y. As shown in FIG. Specifically, the first portion 211 has an accommodating space S, and the fixing rod portion 22 is disposed in the accommodating space S.

The display 3 is arranged and connected to the lower edge of the first part 211 of the main body part 21 , wherein the display 3 may be an augmented reality (Augmented Reality, AR) display or a virtual reality (virtual reality, VR) display. Types can be selected according to needs. The forehead pad 4 is disposed on the inner edge of the first portion 211 of the main body portion 21 , wherein the forehead pad 4 has a forehead rest portion 41 and a buckle portion 42 . The buckling portion 42 is used for buckling on the fixing rod portion 22 , wherein the buckling portion 42 can rotate relative to the fixing rod portion 22 to adjust the angle of the forehead rest 41 relative to the body portion 21 .

The aforementioned forehead pad 4 is detachably assembled to the frame 2 , so whether to replace a different forehead pad 4 can be determined according to the user's needs. Specifically, the shape of the frame 2 in this embodiment is fixed, and the body portion 21 has no deformability. Therefore, when the user's head can conform to the size of the body portion 21 of the frame 2 of the head-mounted display device 1 , it can be The forehead pad 4 is not used; and when the user's head is smaller than the body portion 21 of the frame 2 of the head-mounted display device 1, the forehead pad 4 is installed again, so that the head-mounted display device 1 can be adapted to the user's body. skull. In addition, referring to FIG. 2 , the forehead pad 4 can be detached from the frame 2 and replaced with a different forehead pad 4 , which also has the advantage of convenient cleaning of the forehead pad 4 .

Referring to FIG. 2 , the first portion 211 of the main body portion 21 has a “ㄇ” shape, so the first portion 211 has parallel portions along a first direction X and a second direction Y. Referring to FIG. 1 , in a third direction Z, the height of a part of the second part 212 is higher than that of the first part 211 , wherein the second part 212 and the connecting part 213 have an inclination angle with respect to the first direction X, and the second The inclination angle of the portion 212 relative to the first portion 211 is between 20 and 90 degrees, with the first direction X as the reference line. The inclination angle of the second portion 212 relative to the first portion 211 can be selected according to design requirements.

4 and 5 are schematic views of a part of the first part of the frame body and different viewing angles of the forehead pad. Please refer to FIG. 4 and FIG. 5 , the fixing rod portion 22 is a round rod, and the fixing rod portion 22 and the body portion 21 are integrally formed, and the side shape of the buckle portion 42 of the forehead pad 4 is similar to a C shape, so the buckle portion 42 It can be snapped on the fixed rod part 22 and can be rotated relative to the fixed rod part 22 . The buckle portion 42 and the fixing rod portion 22 can be adapted in size so that after the user stops rotating the forehead pad 4, the buckle portion 42 will no longer rotate relative to the fixing rod portion 22; that is, the forehead rest 41 is opposite to the body portion The angle of 21 is fixed.

In the embodiment shown in FIG. 6A , a positioning structure may be provided on the fixing rod portion 22 and the buckle portion 42 , and the positioning effect can be achieved by engaging the positioning structures with each other. Specifically, the fixing rod portion 22' may have a first positioning structure 221, and correspondingly, the buckle portion 42' may have a second positioning structure 421, and the first positioning structure 221 and the second positioning structure 421 are compatible with each other The so-called conformal means that the two elements have corresponding shapes. For example, the first positioning structure 221 is a convex point, and the second positioning structure 421 is a concave point, but it is also possible that the first positioning structure 221 is a concave point and the second positioning structure 421 is a convex point; or, the first positioning structure The 221 can be a convex rib and the second positioning structure 421 can be a groove, which is determined according to the actual design. One of the first positioning structures 221 and the second positioning structures 421 may be provided in plural, and the other may be provided in one or in plural. Through the mutual engagement of the convex point and the concave point (or the convex rib and the groove), after the user stops adjusting the forehead pad 4, the relative rotation angle of the locking part 42' and the fixing rod part 22' can be fixed, Furthermore, the angle of the forehead rest 41 relative to the main body 21 is fixed. In addition, the engagement of the convex point and the concave point will give back a paragraph-like feel to the user.

FIG. 6B is a schematic diagram of the fixed rod portion being a polygonal rod. Incidentally, as shown in FIG. 6B, the fixed rod portion 22" can also be a polygonal rod, and the shape of the buckle portion 42" can be adapted to the contour and size of the polygonal rod; therefore, the user can stop rotating the forehead pad. After 4, the buckle portion 42" will no longer rotate relative to the fixed rod portion 22", and the angle of the polygonal rod will also give the user a paragraph-like feel.

Please continue to refer to FIG. 1 , FIG. 2 and FIG. 3 , the frame 2 further includes a signal input element 5 disposed on the lower edge of the second portion 212 , and the signal input element 5 can receive an external image source (not shown) in a wired or wireless manner. ), wherein the signal input element 5 is electrically connected to the display 3 to transmit the received signal (image information) to the display 3 . The signal input element 5 and the display 3 can be electrically connected in a wireless manner, or can be electrically connected in a wired manner.

Specifically, the head-mounted display device 1 further includes a signal cable 6 hidden in the body portion 21 , and the signal cable 6 connects the signal input element 5 and the display 3 . And the signal input element 5 is electrically connected with the display 3 through the signal cable 6 . The electrical connection in a wired manner will make the signal transmission between the signal input element 5 and the display 3 more reliable and prevent the possibility of disconnection.

It is worth mentioning that, in the prior art, in order to meet different head shapes, the designer designs the frame to be a stretchable structure, but the signal transmission lines embedded in the frame are often stretched or retracted due to the need of the frame. As the frame stretches, the signal transmission line is constantly stretched or shortened by force, and it is often torn off, resulting in poor signal transmission or no signal.

However, in this embodiment, since the shape of the frame 2 is fixed and does not have the ability to deform, the forehead pad 4 can be disassembled or adjusted to meet the shape and size of the user's head, so it is arranged on the main body. The signal cable 6 in 21 will not be elongated or shortened, and the length of the signal cable 6 is fixed, which improves the reliability of signal transmission between the signal input element 5 and the display 3 .

Please continue to refer to FIG. 1 and FIG. 3 , along the third direction Z (height direction), the position of the forehead pad 4 is higher than the position of the display 3 ; therefore, the user is wearing the head-mounted display device 1 and adjusting the forehead pad 4 , it will not interfere with the user's line of sight when viewing the display 3 .

In addition, referring to FIG. 4 , a surface of the forehead rest portion 41 relatively far away from the buckle portion 42 has a groove R. The provision of the groove R allows the forehead rest 41 to have greater deformability to adapt to the shape of the user's forehead. In addition, the arrangement of the groove R makes the forehead portion 41 not directly contact the user's forehead in a comprehensive manner, but allows a surplus space between the user's forehead and the forehead portion 41 to buffer, thereby increasing the wear resistance of the user. Comfort and breathability. The material of the forehead rest 41 can be, for example, a soft material such as silicone, foam, or rubber, and the invention is not limited thereto.

Please continue to refer to FIGS. 1 , 2 and 3 , the head-mounted display device 1 further includes a first elastic member 7 disposed on the inner edge of the second portion 212 . The first elastic member 7 provides the same function as the forehead pad 4 , and both can be deformed to better conform to the shape of the user's head, so that the user can wear the head-mounted display device 1 comfortably.

FIG. 7 is a partial schematic view of FIG. 1 from different angles, wherein FIG. 7 mainly shows the first elastic member 7 . Referring to FIG. 7 , in this embodiment, the first elastic member 7 can be made of suitable materials such as thermoplastic polyurethanes (TPU), thermoplastic elastomers (TPE) or foam, and the first elastic member 7 The piece 7 is made into a block shape, wherein the first elastic piece 7 is also detachably assembled to the inner edge of the second part 212 . In addition, in order to improve the elastic deformation ability of the first elastic member 7, the first elastic member 7 may include a plurality of elastic ribs 71, and there is a distance between any two adjacent elastic ribs 71, wherein the arrangement shape of the elastic ribs 71 can be V-shaped. The elastic ribs 71 are arranged at a distance, which can improve the degree of compression of the first elastic member 7, so that it can more closely fit the head shapes of different users.

FIG. 8 is a schematic diagram of another embodiment of the first elastic member. Please refer to Fig. 8, the first elastic member 7' can also be selected from a spring with the same elastic deformation ability.

As can be seen from the above, the first elastic members 7 and 7' are mainly used to expand and contract according to the size of the user's head, so that the head-mounted display device 1 can closely fit the user's head without causing compression to the user. In addition to the feeling, it will not be thrown off when the user shakes his head because it is too loose. Therefore, it can be applied to users with different head shapes.

Please continue to refer to FIG. 1 and FIG. 3 , the head-mounted display device 1 further includes an adjustment belt 8 extending from the main body portion 21 and located below the second portion 212 , wherein the adjustment belt 8 corresponds to the lower part of the back of the user's head. The adjustment belt 8 includes a belt body 81 and an adjustment piece 82 , wherein the belt body 81 is connected between the body portion 21 and the adjustment piece 82 , and the adjustment piece 82 is correspondingly located under the second portion 212 , and the adjustment piece 82 can be a knob, and The belt body 81 can be tightened or loosened by rotating the knob to suit the size of the user's head. In addition, the head-mounted display device 1 may further include a second elastic member 83 disposed on the inner edge of the adjustment band 8 . The second elastic member 83 may be foam or the same material as the first elastic member 7 .

In other embodiments, the forehead pad 4 , the first elastic member 7 and the second elastic member 83 may be made of the same material, but not limited thereto.

The head-mounted display device 1 may further include a goggle 9 disposed on the outer edge of the first portion 211 of the body portion 21, and the display 3 is located between the goggles 9 and the forehead pad 4, and the goggles 9 are used to avoid external The object touches the display 3 , for example, droplets adhere to the display 3 or the object directly hits the display 3 to cause damage.

Referring to FIG. 3 , when the user wants to wear the head-mounted display device 1 , the user can initially install the forehead pad 4 on the fixing rod 22 of the frame 2 through the buckle portion 42 , and then attach the head-mounted display device 1 The display device 1 is put on the head, so that the forehead rest 41 of the forehead pad 4 is initially set against the user's forehead, and the first elastic member 7 disposed on the inner edge of the second part 212 of the main body 21 of the frame 2 will It abuts on the upper side of the back of the user's head, and the adjusting belt 8 is located at the lower side of the back of the user's head, and by rotating the adjusting member 82, which is a knob, after the belt body 81 of the adjusting belt 8 is tightened, it is arranged on the back of the user's head. The second elastic member 83 with the inner edge of the main body 81 also abuts at the lower side of the back of the user's head.

Then, the user can adjust the angle of the forehead rest 41 relative to the first part 211 of the body part 21, and let the forehead rest 41 abut against the user's forehead at an angle that the user feels comfortable, wherein the buckle part 42 can be set At the lower side of the forehead rest portion 41 , when the forehead rest portion 41 is rotated to adjust the angle of the forehead rest portion 41 relative to the first portion 211 of the body portion 21 , the forehead rest portion 41 will not affect the user’s viewing of the display 3 . Sight.

In addition, the forehead pad 4 is a rotatable component independent of the frame 2, and the display 3 is fixed on the lower side of the first part 211 of the frame 2. Therefore, when the forehead pad 4 is adjusted, the display 3 will not be affected. Angle relative to frame 2.

In addition, the groove R on the inner side of the forehead rest 41 forms a spare space, so that the forehead rest 41 does not fully fit on the user's forehead, allowing the user to wear the head-mounted display device. The whole process of 1 can have better comfort.

It can also be seen from FIG. 3 that the body portion 21 of the frame 2 and the adjustment belt 8 just form a Y-shaped structure, which means that the three points formed by the forehead pad 4 , the first elastic member 7 and the second elastic member 83 are not aligned. On the same straight line, but form a triangle, forming a stable structure. Therefore, even if the user shakes his head in the process of wearing the head-mounted display device 1 , the head-mounted display device 1 is not easily released from the user's head.

In addition, although the above description is based on one fixed rod portion 22, those skilled in the art can split the fixed rod portion 22 into two or more, and the forehead pad 4 can also be split into two or more, so as to meet the requirements more comprehensively. User's head shape.

To sum up, the forehead pad of the head-mounted display device of the present invention can adjust the angle of the forehead rest portion relative to the main body portion of the frame, so it can be applied to users with different head shapes.

In addition, the forehead pad is not located in the line of sight of the user, so the angle adjustment of the forehead pad does not interfere with the display, nor does it affect the angle of the display relative to the frame.

In addition, the removable forehead pad has the advantage of being easily removed for cleaning.

However, the above are only preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the description of the invention, All still fall within the scope of the patent of the present invention. In addition, it is not necessary for any embodiment of the present invention or the claimed scope of the present invention to achieve all of the objects or advantages or features disclosed in the present invention. In addition, the abstract section and the title are only used to aid the search of patent documents and are not intended to limit the scope of the present invention. In addition, terms such as "first" and "second" mentioned in this specification or the scope of the patent application are only used to name the elements or to distinguish different embodiments or scopes, and are not used to limit the number of elements. upper or lower limit.

1: Head-mounted display device 2: Frame 21: Main body 211: Part 1 212: Part II 213: Connector 22, 22', 22": fixed rod 221: The first positioning structure 3: Display 4: Forehead pad 41: Forehead 42, 42', 42": Buckle part 421: Second positioning structure 5: Signal input element 6: Signal cable 7: The first elastic piece 71: Elastic Rib 8: Adjust the belt 81: with body 82: Adjustment pieces 83: Second elastic piece 9: Goggles S: accommodating space R: groove X: first direction Y: the second direction Z: third direction

FIG. 1 is a schematic diagram of a head-mounted display device according to an embodiment of the present invention. FIG. 2 is a partial exploded schematic view of the head-mounted display device of FIG. 1 from different viewing angles. FIG. 3 is a schematic diagram of the head-mounted display device of FIG. 1 being worn on a user's head. 4 and 5 are schematic views of a part of the first part of the frame body and different viewing angles of the forehead pad. FIG. 6A is a schematic diagram of the fixing rod portion and the buckle portion having a positioning structure. FIG. 6B is a schematic diagram of the fixed rod portion being a polygonal rod. FIG. 7 is a partial schematic view of FIG. 1 from different angles. FIG. 8 is a schematic diagram of another embodiment of the first elastic member.

1: Head-mounted display device

2: Frame

21: Main body

211: Part 1

212: Part II

213: Connector

3: Display

4: Forehead pad

5: Signal input element

6: Signal cable

7: The first elastic piece

8: Adjust the belt

81: with body

82: Adjustment pieces

83: Second elastic piece

9: Goggles

X: first direction

Y: the second direction

Z: third direction

Claims (20)

A head-mounted display device, comprising: a frame having a main body part and a fixing rod part, wherein the main body part has a first part, a second part and a connecting part connected between the first part and the second part, and the fixing rod part is provided in the first part; a display disposed on the lower edge of the first portion of the body portion; and a forehead pad, disposed on the inner edge of the first part of the body part, has a forehead rest part and a buckle part, the buckle part is buckled on the fixing rod part, Wherein, the buckle portion rotates relative to the fixed rod portion to adjust the angle of the forehead portion relative to the body portion. The head-mounted display device of claim 1, wherein the forehead pad is detachably assembled to the frame. The head-mounted display device according to claim 1, wherein the shape of the body portion is fixed and has no deformability. The head-mounted display device of claim 1, wherein along a first direction, the first part is parallel to the first direction, the second part and the connecting part are inclined to the first direction, and the second The height of the part is higher than the first part. The head-mounted display device according to claim 4, wherein the inclination angle of the second portion relative to the first portion is between 20 and 90 degrees. The head-mounted display device according to claim 1, wherein the fixed rod portion is a round rod or a polygonal rod. The head-mounted display device as claimed in claim 6, wherein the fixing rod portion has a first positioning structure, the buckle portion has a second positioning structure, and the first positioning structure and the second positioning structure are mutually Conformal. The head-mounted display device of claim 7, wherein one of the first positioning structure and the second positioning structure is a bump, and the other of the first positioning structure and the second positioning structure is Pits. The head-mounted display device of claim 1, wherein the frame further comprises a signal input element disposed on the lower edge of the second portion, and the signal input element is electrically connected to the display. The head-mounted display device of claim 1, further comprising a signal cable hidden in the body portion, wherein the signal input element is electrically connected to the display through the signal cable. The head-mounted display device of claim 1, wherein the forehead pad is higher than the display along a height direction. The head-mounted display device as claimed in claim 1, wherein a surface of the forehead portion relatively far away from the buckle portion has a groove. The head-mounted display device of claim 1, further comprising a first elastic member disposed on the inner edge of the second portion. The head-mounted display device of claim 13, wherein the first elastic member comprises a plurality of elastic ribs, and any two adjacent elastic ribs are separated by a distance. The head-mounted display device according to claim 14, wherein the arrangement shape of the elastic ribs is V-shape. The head-mounted display device according to claim 13, wherein the first elastic member is a spring. The head-mounted display device as claimed in claim 1, further comprising an adjustment band extending from the body portion and positioned below the second portion. The head-mounted display device as claimed in claim 17, wherein the adjustment belt comprises a belt body and an adjustment piece, the belt body is connected between the main body part and the adjustment piece, and the adjustment piece is correspondingly located under the second part square. The head-mounted display device as claimed in claim 18, further comprising a second elastic member disposed on the inner edge of the adjustment belt. The head-mounted display device of claim 1, further comprising a goggle disposed on the outer edge of the first portion of the body portion, wherein the display is located between the goggle and the forehead pad.

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