WO2018184219A1

WO2018184219A1 - Head-mounted display device

Info

Publication number: WO2018184219A1
Application number: PCT/CN2017/079759
Authority: WO
Inventors: 徐振华; 严绍军
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2017-04-07
Filing date: 2017-04-07
Publication date: 2018-10-11
Also published as: CN108513628A

Abstract

A head-mounted display device (1) comprises: a glasses main body (10), wherein one end of the glasses main body (10) is provided with a wearing portion (120) matched to a user, and the other end of the glasses main body (10) is provided with a lens mounting space (210); a lens (30), disposed in the lens mounting space (210); a lens mounting portion (20), disposed on the glasses main body (10) and close to the lens (30), wherein the lens mounting portion (20) comprises a mounting surface close to the lens (30); and a moisture absorbing panel (40), disposed on the mounting surface of the lens mounting portion (20). When the head-mounted display device (1) is worn on the head of a user, the face of the user and the wearing portion (120) of the head-mounted display device (1) together form a relatively closed space. When moisture levels increase due to perspiration of the user, the increased moisture in the air can be absorbed by the moisture absorbing panel (40), preventing moisture from adhering to the lens surface (30).

Description

Head mounted display device

Technical field

The present invention relates to the field of display device technologies, and in particular, to a head mounted display device.

Background technique

The virtual display technology is virtualized into the real world through devices such as computers or mobile terminals, and projected onto the human retina through the display screen and the visual system. The essence is to present a user's perspective as the main body, and can observe the objects in the three-dimensional space in real time without restriction, and give the user an immersive experience. Virtual display technology has been widely used in entertainment, military training, medical training, product 3D virtual display and other fields.

Users often use a head-mounted display product to view realistic images produced by virtual reality technology. However, most of the current head-mounted display products, especially the head-mounted display products with outdoor use scenarios, whether at normal temperature or high temperature, cannot be leaked due to the watch-type experience when the head-mounted display product is worn. The lens part is required to have a good sealing property, which causes the user to wear a head-mounted display product for a long time, the user's face is stuffy, and it is easy to sweat and emit heat, resulting in an increase in humidity in the air, which is hotter. When moisture contacts the lower temperature lens, it is easy to fog and fog in the lens, which ultimately affects the user's viewing experience.

Summary of the invention

The present invention provides a head mounted display device comprising:

a lens body, one end of the lens body is provided with a wearing portion for cooperation with a user, and the other end of the lens body is provided with a lens mounting space;

a lens disposed in the lens mounting space;

a lens mounting portion disposed on the lens body and adjacent to the lens, the lens mounting portion including a mounting surface adjacent to the lens;

The moisture absorbing panel is disposed on the mounting surface of the lens mounting portion.

When the head-mounted display device of the present invention is worn on the user's head for use, the user's face and the wearing portion of the head-mounted display device together form a relatively closed space, which causes the user to be sealed after sweating. The humidity in the air in the space increases. At this time, the moisture absorbing panel can absorb the moisture in the air which is increased by the user's sweating, so as to prevent the moisture from adhering to the lens, and the fogging effect of the lens can be prevented.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a perspective view of a head mounted display device according to an embodiment of the invention.

2 is an exploded perspective view of a moisture absorbing panel and a lens main body of a head mounted display device according to an embodiment of the invention.

3 is a front elevational view of a head mounted display device in accordance with an embodiment of the present invention.

4 is a perspective view of another head mounted display device according to an embodiment of the invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

The terminology used in the present invention is for the purpose of describing particular embodiments, and is not intended to limit the invention. The singular forms "a", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

For the current user who wears the head-mounted display product for a long time, it is easy to sweat and cause fog on the lens, which affects the user's viewing experience. The current practice is to apply an anti-fog film on the lens of the head-mounted display product. However, the existing coating technology can only support a limited number of anti-fog and cannot be used for a long time.

In order to solve the above problems in the prior art, the present invention provides a head mounted display device. The head-mounted display device of the present invention will be described in detail below with reference to the accompanying drawings. The features of the embodiments and embodiments described below may be combined with each other without conflict.

Referring to FIG. 1 to FIG. 3, a head-mounted display device 1 according to an embodiment of the present invention includes:

The lens main body 10 is provided with a wearing portion 120 for engaging with a user, and the other end of the lens main body 10 is provided with a lens mounting space 210.

The lens 30 is disposed in the lens mounting space 210.

The lens mounting portion 20 is disposed on the lens body 10 and adjacent to the lens 30. The lens mounting portion 20 includes a mounting surface adjacent to the lens 30.

The moisture absorbing panel 40 is disposed on a mounting surface of the lens mounting portion 20. The lens mounting portion 20 is disposed adjacent to the lens 30, so that the moisture absorbing panel 40 disposed on the mounting surface of the lens mounting portion 20 facilitates dehumidification and defogging of the lens 30.

When the head-mounted display device 1 of the present invention is worn on the user's head for use, the face of the user and the wearing portion 120 of the eyeglass body 10 of the head-mounted display device 1 together form a relatively closed space when the user After sweating, the humidity in the air in the closed space is increased. At this time, the moisture absorbing panel 40 can absorb the moisture in the air which is increased by the user's sweating, so as to prevent the moisture from adhering to the lens 30, and can To prevent fogging of the lens 30.

In one embodiment, the moisture absorbing panel 40 includes a surrounding portion 400 corresponding to the structure and size of the lens mounting space 210 . The surrounding portion 400 is disposed around the outer periphery of the lens mounting space 210 . The edge can provide a better defogging effect on the lens 30.

Further, the enclosure 400 includes a first enclosure frame 410 (corresponding to the upper circumference of the lens installation space 210), and a second enclosure frame 420 that is bent and connected to the first enclosure frame 410 (corresponding to The side periphery of the lens mounting space 210 and the third surrounding frame 430 (corresponding to the lower circumference of the lens mounting space 210) are connected to the second surrounding frame 420. After the moisture absorbing panel 40 is mounted on the mounting surface of the lens mounting portion 20, the first surrounding frame 410, the second surrounding frame 420, and the third surrounding frame 430 are respectively located at the upper portion, the side portion, and the lower portion of the lens 30. A more comprehensive defogging effect is achieved on the lens 30. Optionally, the first enclosure frame 410, the second enclosure frame 420, and the third enclosure frame 430 are integrally formed.

In an embodiment, the head mounted display device 1 further includes a distance sensor 60. The lens body 10 is placed on the moisture absorption panel 40 with a groove portion 440 corresponding to the distance sensor 60. After the moisture absorbing panel 40 is mounted on the mounting surface of the lens mounting portion 20, the distance sensor 60 is exposed from the groove portion 440 to the moisture absorbing panel 40 so as not to affect the normal operation of the distance sensor 60.

In one embodiment, the number of the lens mounting spaces 210 is two, and the number of the lenses 30 is also two. The two lenses 30 are respectively disposed in the two lens mounting spaces 210. A gap portion 211 is formed between the two lens mounting spaces 210, and the moisture absorbing panel 40 further includes a protruding portion 450 corresponding to the gap portion 211. After the moisture absorbing panel 40 is mounted on the mounting surface of the lens mounting portion 20, the protruding portion 450 is attached to the gap portion 211, which can better separate the side of the lens 30 close to the gap portion 211. Fog effect.

In an embodiment, the eyeglass body 10 is further provided with a nose pad portion 130. The nose pad portion 130 is formed on the lens mounting portion 20, and the nose pad portion 130 is disposed on the moisture absorption panel 40. Corresponding notch portion 460. After the moisture absorbing panel 40 is attached to the mounting surface of the lens mounting portion 20, the nose pad portion 130 is exposed from the notch portion 460 to the moisture absorbing panel 40 so as not to affect the normal use of the nose pad portion 130.

In one embodiment, the moisture absorbing panel 40 is detachably disposed on the mounting surface of the lens mounting portion 20, so that the moisture absorbing panel 40 can be replaced when the moisture absorbing effect of the moisture absorbing panel 40 is weakened. The manner in which the moisture absorbing panel 40 is disposed on the mounting surface of the lens mounting portion 20 may include, but is not limited to, the following two types: (1) The moisture absorbing panel 40 is disposed on the mounting surface of the lens mounting portion 20 by adhesive glue. (2) The moisture absorbing panel 40 is provided on the mounting surface of the lens mounting portion 20 by a Velcro.

In one embodiment, the moisture absorbing panel 40 can be made of, but not limited to, a PTFE (polytetrafluoroethylene) material or a fluororesin material. When the user wears the head-mounted display device 1 and the moisture-absorbing panel 40 is exposed to an open environment of normal temperature and humidity, the moisture absorption panel 40 has a higher humidity than the surrounding environment, and can automatically release moisture to keep the heel again. The ambient humidity is consistent for the user to use next time. And the moisture absorbing panel 40 can Repeated moisture absorption/dehumidification to achieve recycling and ultimately achieve long-lasting lens anti-fog.

Further, the area of the moisture absorbing panel 40 is not less than 20 cm ² . When the moisture absorbing panel 40 is made of PTFE or fluororesin, the minimum area is not less than 20 cm ² . That is to say, if the area of the lens 30 is large, the area of the moisture absorbing panel 40 to be used should be correspondingly increased to enhance the moisture absorption effect, thereby better absorbing the user's use, the face and the head mounted display device 1 The wearing portion 120 of the lens main body 10 is attached to the moisture of the formed relatively sealed space.

Optionally, an accommodating cavity 110 is formed in the spectacles body 10, and the lens mounting portion 20, the mounting surface, and the moisture absorbing panel 40 are all located in the accommodating cavity 110. That is to say, when the user uses the face, the wearing portion 120 of the eyeglass body 10 of the head-mounted display device 1 is attached to each other, so that the accommodating cavity 110 forms a relatively closed space. After the user wears the head mounted display device 1, the size of the sealed space formed may be different due to the degree of tightness of the wearing and the difference in facial features of the person. To ensure a better moisture absorption effect, the The area of the moisture absorbing panel 40 is calculated based on the estimated maximum volume of the closed space.

In an embodiment, the outer peripheral surface of the wearing portion 120 is further provided with a mask (like a gasket) for attaching to the face of the user for the user to wear. Further, the outer peripheral surface of the wearing portion 120 is further provided with a plurality of mounting holes 70 for mounting the mask. Alternatively, the mask may include, but is not limited to, a foam type mask.

In an embodiment, the head mounted display device 1 is VR (Virtual Reality) glasses, AR (Augmented Reality) glasses, or FPV (First Person View) glasses.

Referring to FIG. 4, in an embodiment, the head mounted display device 1 of the present invention further includes a wearing portion 50. The wearing portion 50 is disposed on the lens main body 10 for engaging the wearing portion. The lens main body 10 is fixed to the user. When the user uses the head mounted display device 1 of the present invention, the head worn portion 50 is placed over the head, and the wearing portion 120 is attached to the face to fix the head mounted display device 1 of the present invention.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. The terms "including", "comprising" or "comprising" or "comprising" are intended to include a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also other items not specifically listed Elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The method and apparatus provided by the embodiments of the present invention are described in detail above. The principles and implementations of the present invention are described in the specific examples. The description of the above embodiments is only used to help understand the method of the present invention and At the same time, there will be changes in the specific embodiments and the scope of application according to the idea of the present invention, and the contents of the present specification should not be construed as limiting the present invention. .

The disclosure of this patent document contains material that is subject to copyright protection. This copyright is the property of the copyright holder. The copyright owner has no objection to the reproduction of the patent document or the patent disclosure in the official records and files of the Patent and Trademark Office.

Claims

A head mounted display device, comprising:

a lens body, one end of the lens body is provided with a wearing portion for cooperation with a user, and the other end of the lens body is provided with a lens mounting space;

a lens disposed in the lens mounting space;

a lens mounting portion disposed on the lens body and adjacent to the lens, the lens mounting portion including a mounting surface adjacent to the lens;

The moisture absorbing panel is disposed on the mounting surface of the lens mounting portion.
The head-mounted display device according to claim 1, wherein the moisture absorbing panel comprises a hem portion corresponding to the lens mounting space, and the dam portion is enclosed in the lens mounting space. The outer periphery.
The head-mounted display device according to claim 2, wherein the enclosure comprises a first enclosure frame, a second enclosure frame bent to the first enclosure frame, and a bent connection And a third enclosed frame of the second enclosure frame.
The head mounted display device according to claim 1, wherein the moisture absorbing panel has an area of not less than 20 cm 2 .
The head mounted display device according to claim 1, further comprising a distance sensor disposed on the lens body; wherein the moisture absorbing panel is provided with a groove portion corresponding to the distance sensor.
The head mounted display device according to claim 1, wherein the moisture absorbing panel is detachably provided on a mounting surface of the lens mounting portion.
The head mounted display device according to claim 6, wherein the moisture absorbing panel is disposed on a mounting surface of the lens mounting portion by an adhesive.
The head mounted display device according to claim 6, wherein the moisture absorbing panel is disposed on a mounting surface of the lens mounting portion by a Velcro.
A head mounted display device according to claim 1, wherein said moisture absorbing surface The board is made of PTFE or fluororesin.
The head-mounted display device according to claim 1, wherein the number of the lens mounting spaces is two, and a gap portion is formed between the two lens mounting spaces; the moisture absorbing panel includes The corresponding portion of the gap portion.
The head-mounted display device according to claim 1, wherein the eyeglass main body is further provided with a nose pad portion, and the moisture absorption panel is provided with a notch portion corresponding to the nose pad portion.
The head-mounted display device according to claim 1, further comprising a wearing portion, wherein the wearing portion is disposed on the lens body for engaging the lens body with the wearing portion Fixed.
The head-mounted display device according to claim 1, wherein a accommodating cavity is formed in the spectacles main body, and the lens mounting portion and the mounting surface are both located in the accommodating cavity.
The head mounted display device according to claim 1, wherein the wearing portion is further provided with a mask for attaching to a face of the user.