CN204287608U - A kind of head mounted display - Google Patents

Abstract

The utility model discloses a head-mounted display, comprising: an eye mask, a visual magnification optical system, a display module and a frame cover; wherein, the display module further includes a left-eye display module and a right-eye display module; The display module is used to display images for the left eye; the display module for the right eye is used to display images for the right eye; allowing users to experience high-definition 3D visual effects.

Description

a head-mounted display

technical field

The present disclosure relates to a head-mounted display that is worn on a user's head to provide a virtual image, and more particularly, to a head-mounted display that provides a virtual image that allows a user to experience a high-definition 3D visual effect.

Background technique

Head Mount Display is a kind of head-mounted virtual display, also known as glasses-type display and portable theater. It is a popular name, because the glasses-type display looks like glasses, and can display the video image of the audio and video player for a large screen, so it is called video glasses (video glasses). Video glasses were initially demanded and applied to military affairs. The current video glasses are like the stage and status of the big brother and the big mobile phone. In the future, under the circumstance of the great development of 3C integration, it will achieve very rapid development.

At the same time, with the development of science and technology, 3D technology is getting closer and closer to the public. Not only cinemas can watch 3D movies, but even TV channels have 3D channels. Of course, watching 3D movies requires an additional 3D glasses. Although the vast majority of smartphones support the playback of 3D video and images, if the mobile phone is directly used as a display platform for watching 3D video, the 3D effect is not good due to the small screen of the mobile phone, and almost no one will wear 3D glasses. Watch 3D videos on your smartphone. Moreover, the head-mounted stereoscopic viewing devices that appear on the existing market are basically devices that combine mobile phones and head-mounted optical devices; Moreover, in 3D split-screen display, the maximum display effect that can be technically achieved is only half of the resolution of the mobile phone. For example, the mobile phone screen is 1080P, and the maximum split-screen 3D display effect achieved is only 540P, that is, The user's 3D high-definition video experience will be greatly reduced. At the same time, due to the limitation of the size of the mobile phone screen itself, when the mobile phone displays a 16:9 dual screen in 3D split screen, the utilization rate of the mobile phone screen is inevitably relatively low, and the video images displayed on the dual screen in the mobile phone are also relatively small, which will directly As a result, the virtual screen is relatively small and the sense of immersion is low during the 3D viewing process.

Contents of the invention

The utility model provides a head-mounted display worn on the user's head to provide virtual images, in particular to a head-mounted display that provides virtual images that allow users to experience high-definition 3D visual effects, through independent dual-screen display, and head-mounted optical The integrated structure diagram of the device and display screen allows users to experience high-definition 3D visual effects.

In order to achieve the above purpose, the utility model provides a head-mounted display, including: eye mask, visual magnification optical system, display module and frame cover;

Wherein, the display module further includes a left-eye display module and a right-eye display module;

The left eye display module is used to display the left eye image;

The right eye display module is used for displaying the right eye image.

Preferably, in the above display,

The size of the display module is preset;

The display screen of the display module includes, but is not limited to, a liquid crystal display LCD, a light-emitting diode display LED, and an organic light-emitting diode display OLED.

Preferably, in the above display,

The size range of the display module can further be 0.4 inches to 7 inches;

Preferably, in the above display,

The display module further includes a display control unit;

The display control unit is used to control the screen display of the display module.

Preferably, in the above display,

The visual magnification optical system includes a left-eye optical assembly and a right-eye optical assembly, and each set of optical assemblies is a single-piece positive-focus lens or a positive-focus lens group composed of multiple lenses.

Preferably, in the above display,

A distance adjustment mechanism is provided between the left-eye optical assembly and the right-eye optical assembly in the visual magnification optical system for adjusting the distance between the two optical assemblies.

Preferably, in the above display,

The head-mounted display further includes a diopter adjuster, and the diopter adjuster is located near the eye end of the visual magnification optical system.

Preferably, in the above display,

The visual magnification optical system is connected with a focal length adjustment mechanism for adjusting the focal length of the two optical components.

The beneficial effects of the utility model are as follows:

1. The head-mounted display of this utility model has independent dual-screen display, which can effectively improve the display effect of movies and enhance the 3D visual experience.

2. Since the head-mounted display of the present invention has an integrated design of the display screen and the head-mounted optical device, compared with the usual 3D head-mounted stereoscopic viewing equipment, the design is light and handy, the operation is more convenient, and the use is more comfortable.

3. The head-mounted display of the present invention has a simple structure and is easy for industrialization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative labor:

FIG. 1 is a schematic structural view of a head-mounted display according to an embodiment of the present invention;

Figure 2 is an exploded view of Figure 1;

FIG. 3 is an optical schematic diagram of a head-mounted display according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

Fig. 2 is an exploded diagram of a structure of a head-mounted display according to an embodiment of the present invention; the head-mounted display of this embodiment includes an eye mask 1, a visual magnification optical system 2, a mirror frame cover 3, and a display module 4, wherein the eye mask 1 It is connected with one end of the frame cover 2, and the visual magnification optical system is installed at the connection position between the frame cover and the eye mask (the connection position between the frame cover and the eye mask refers to the vicinity of the connection position between the frame cover and the eye mask, that is, the visual magnification optical system can be It can be installed in the frame cover, or it can be installed on the eye mask, or it can be installed at the intersection of the two).

A display module of a head-mounted display embodiment of the present invention further includes a left-eye display module 4L and a right-eye display module 4R; the left-eye display module 4L is used to display left-eye images; the right-eye display Module 4R, for displaying the image for the right eye. The size of the display module is preset; the size range of the display module can further be between 0.4 inches and 7 inches; the display screen of the display module includes, but is not limited to, a liquid crystal display LCD, Light Emitting Diode Display LED and Organic Light Emitting Diode Display OLED. The independent display module can be customized according to the display requirements of the actual product, film and television or games, and can be set to 16:9, 4:3 and other different ratio sizes to improve the utilization rate of the screen; at the same time, the dual-screen independent display can be extremely It meets the requirements of 3D dual-image display well, improves the resolution of 3D display, and enables users to experience high-definition 3D visual effects; effectively avoids single-screen dual-image display and reduces the display pixels of movies or games, resulting in the virtual reality perceived by human eyes. The screen display effect is not clear, and the experience is poor. The display module further includes a display control unit; the display control unit is used to control the screen display of the display module.

In the embodiment of the present utility model, the visual magnification optical system includes two groups of optical components, which are respectively optical components 2L and optical components 2R, preferably two groups of optical components with the same structure, and each group of optical components is a single positive A focus lens or a positive focus lens group composed of multiple lenses, that is, each group of optical components is composed of a positive lens, or a lens group composed of multiple positive lenses, or a lens group composed of multiple negative lenses and positive lenses. The lens components of the optical component may be spherical lenses, aspheric lenses, Fresnel lenses, free-form surface lenses, meniscus lenses, Fresnel lenses, and the like. For example: Each group of optical components in the visual magnification optical system can be composed of a meniscus lens and a convex lens.

The independent display module 4L corresponding to the optical component 2L and the independent display module 4R corresponding to the optical component 2R are relatively independent and have no light interaction; that is, the optical component 2L and the independent display module 4L are integrated, and the optical component 2R and the independent The display module 4R is a whole; the light between the two wholes is independent, and there is no interaction. The overall implementation can be that the optical assembly 2L and the independent display module 4L and the optical assembly 2R and the independent display module 4R are each manufactured as one; or a partition board is established between the optical assembly 2L and 2R and the display modules 4L and 4R. , to cut off the light to achieve the non-interaction of the light and improve the visual viewing effect.

Preferably, a head-mounted display in the embodiment of the present utility model may also include a diopter adjuster (not shown in the drawings), the diopter adjuster is installed at the near-eye end of the visual magnification optical system, and the diopter adjuster can make the diopter in It can be adjusted within a certain range, so that users with a diopter within this range can normally use the head-mounted stereoscopic viewing device without wearing glasses.

Preferably, a distance adjustment mechanism can also be set between the two groups of optical components in the visual magnification optical system, and the adjustment mechanism can be a gear mechanism for adjusting the distance between the two optical components to adapt to the Users with different interpupillary distances. To realize the adjustment of the distance between the two groups of optical components, in addition to using the distance adjustment mechanism, the two groups of optical components can also be fixed at the connection position between the frame and the eye mask through the waist hole, so that the two optical components can be adjusted manually to accommodate users with different interpupillary distances.

Preferably, the visual magnification optical system can also be designed to be connected with a focal length adjustment mechanism (not shown in the drawings), which is used to adjust the focal length of the two optical components, so as to adapt to the images of different pixel densities that are enlarged by the optical system. quality. When this solution is implemented, the two groups of optical components in the visual magnification optical system can be connected to a focal length adjustment mechanism to adjust the focal lengths of the two optical components respectively; the two groups of optical components can also be connected to a focal length adjustment mechanism Realize joint debugging. When each group of optical components is composed of two or more optical elements, the focus adjustment mechanism can be a gear mechanism, and the gear tooth adjustment mechanism converts the rotational motion into the linear motion of the optical elements, by changing the distance between the optical elements Change the focal length of the optical system; and when each group of optical components is composed of only one optical element, only the optical element has the feature of adjustable focal length, the focal length adjustment mechanism can be used to adjust the focal length, such as: liquid lens, the focal length adjustment mechanism to The liquid lens is applied with voltage or mechanical force to change the shape of the liquid to achieve focal length adjustment. Since the focus adjustment is relatively professional, the focus adjustment mechanism can be designed as gear adjustment, and ordinary users can adjust according to the gear to ensure the display effect.

FIG. 3 is an optical schematic diagram of a head-mounted display according to an embodiment of the present invention. In order to better understand the embodiment of the present invention, firstly, the principle of stereoscopic imaging is explained:

The reason why human vision can distinguish between distance and near depends on the gap between the two eyes. A person's two eyes are about 5 cm apart, and the angles of the two eyes will not be the same when looking at anything except the front.

Although the gap is very small, it is transmitted to the brain through the retina, and the brain uses this tiny gap to generate the depth of distance and thus create a three-dimensional effect. Although one eye can see objects, it is not easy to distinguish the distance of objects. According to this principle, if the same image is used to create two images using the difference in the angle of view of the two eyes, and then let the two eyes see one side of the image, and each eyeball sees the image on its own side, the brain can generate the depth of field through the retina. Three-dimensional sense.

The images of the independent display modules 4L and 4R in Fig. 1 enter the left and right eyes of the person through the visual magnification optical system; that is, what the human eye sees after the visual magnification optical system is the magnified image at a certain distance in front of the human eye With virtual images, you can enjoy the effect of watching movies on a large screen in high-definition 3D in theaters.

That is, the head-mounted display displays a left-eye image and a right-eye image on separate screens so that the user's eyes can view a stereoscopic image by synthesizing the two screens. The images displayed on the left-eye and right-eye display modules 4L and 4R become enlarged virtual images via the visual magnification optical system. When the virtual images are focused on the retinas of the left and right eyes, they enter the brain as individual items of information, where they are combined into a stereoscopic image.

Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and equivalent technologies thereof, the utility model is also intended to include these modifications and variations.

Claims (8)

1. a head mounted display, comprising: eyeshade, visual magnifying optics, display module and mirror holder cover;

Wherein, described display module, comprises further, left eye display module and right eye display module;

Left eye display module, for showing left-eye image;

Right eye display module, for showing eye image.

2. head mounted display as claimed in claim 1, is characterized in that:

The size of described display module, for presetting;

The display screen of described display module, including but not limited to, LCDs LCD, light-emitting diode tube display screen LED and organic light emitting diode display screen OLED.

3. head mounted display as claimed in claim 1 or 2, is characterized in that:

The magnitude range of the size of described display module, can be 0.4 inch to 7 inches further.

4. head mounted display as claimed in claim 1 or 2, is characterized in that:

Described display module, comprises further, indicative control unit;

Described indicative control unit, for controlling the screen display of display module.

5. head mounted display as claimed in claim 1, is characterized in that:

Described visual magnifying optics comprises left eye optical assembly and right eye optical module, often organizes the positive focus lens group that optical module is the positive focus lens of monolithic or multiple lens composition.

6. the head mounted display as described in claim 1 or 5, is characterized in that:

Distance adjusting mechanism is provided with, for regulating the distance between two optical modules between left eye optical assembly in described visual magnifying optics and right eye optical module.

7. the head mounted display as described in claim 1 or 5, is characterized in that:

Described head mounted display also comprises diopter regulator, and described diopter regulator is positioned at the nearly eye end of described visual magnifying optics.

8. the head mounted display as described in claim 1 or 5, is characterized in that:

Described visual magnifying optics is connected with focal length setting mechanism, for regulating the focal length of two optical modules.