WO2017113126A1

WO2017113126A1 - Head-mounted display device

Info

Publication number: WO2017113126A1
Application number: PCT/CN2015/099585
Authority: WO
Inventors: 朱剑磊
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2017-07-06
Also published as: CN107407804A

Abstract

A head-mounted display device (100), comprising a first optical system (10) and a second optical system (20). The first optical system comprises N first display screens (11), and the second optical system comprises N second display screens (21). Light emitted by the N first display screens is focused on a second optical element (13) by means of N first optical elements (12). Light focused on the second optical element is focused on the left eye by means of the second optical element. Light emitted by the N second display screens is focused on a fourth optical element (23) by means of N third optical elements (22). Light focused on the fourth optical element is focused on the right eye by means of the fourth optical element. Since N is greater than 2 and light emitted by the N first display screens and by the N second display screens can be focused on human eyes by means of the optical elements, the resolution and viewing angle of the head-mounted display device are improved.

Description

Head mounted display device

Technical field

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

Background technique

A Head Mounted Display (HMD) refers to a display device that can be worn on the head. The HMD generally uses a "near-eye optical system" to display multimedia information such as images on a display screen a few centimeters from the eyeball. Most of the existing HMDs are one display or two micro displays. For example, OCULUS VR, LeTV helmet, etc., enter the left and right eyes through a display screen. Another example is the SONY, ZEISIS, etc. The HMD uses two micro-displays, and the images displayed by the two micro-displays enter the left and right eyes respectively. It can be seen that whether it is a display or two micro-displays, the resolution seen by the user's single eye is only the resolution of a corresponding display or part of the display, the resolution is low, and the viewing angle range that can be viewed by the human eye. Limited.

Summary of the invention

Embodiments of the present invention provide a head mounted display device, in order to improve the resolution and viewing angle of the head mounted display device.

A second aspect of the embodiments of the present invention provides a head mounted display device including a first optical system and a second optical system; the first optical system includes N first display screens, N first optical components, and a second optical display, the N first display screens are in one-to-one correspondence with the N first optical elements, and the light emitted by the N first display screens is focused by the N first optical elements a second optical element, the light focused on the second optical element being focused by the second optical element to the left eye; the second optical system comprising N second display screens, N third optical elements, and fourth An optical element, the N second display screens are in one-to-one correspondence with the N first optical elements, and the light emitted by the N second display screens is focused on the fourth by the N third optical elements An optical element, the light focused on the fourth optical element being focused by the fourth optical element to the right eye; the N being an integer greater than or equal to 2.

The head-mounted display device disclosed by the invention has higher resolution and viewing angle than the prior art. improve.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic structural view showing the optical components of a head mounted display device according to an embodiment of the present invention;

2 is a schematic structural diagram of optical components of a head mounted display device according to another embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an optical component of a head mounted display device according to another embodiment of the present 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 an embodiment of the invention, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of the present invention.

Embodiments of the present invention provide a head mounted display device, in order to improve the resolution and viewing angle of the head mounted display device. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present invention are used to distinguish different objects, and are not intended to describe a specific order. .

Referring to FIG. 1, the head-mounted display device provided by the present invention includes a first optical system 10 and a second optical system 20; the first optical system 10 includes N first display screens 11, N first optical components. 12, and the second optical component 13, the N first display screens 11 are in one-to-one correspondence with the N first optical components 12, and the light emitted by the N first display screens 11 is focused by the N first optical components 12. The second optical element 13, the light focused on the second optical element 13 is focused by the second optical element 13 to the left eye, and the second optical system 20 includes N second display screens 21, N third optical elements 22, and Four optical components 23, N The two display screens 21 are in one-to-one correspondence with the N first optical elements 22, and the light emitted by the N second display screens 21 is focused by the N third optical elements 22 on the fourth optical element 23, focusing on the fourth optical element 23. Light is focused by the fourth optical element to the right eye, and N is an integer greater than or equal to two.

It can be seen that the head-mounted display device of the present invention has a first optical system 10 and a second optical system 20 respectively corresponding to the left and right eyes. The first optical system 10 includes N first display screens 11, and the second optical system 20 Including N second display screens 21, the light emitted by the N first display screens 11 is focused by the N first optical elements 12 on the second optical element 13, and the light focused on the second optical elements 13 passes through the second optical elements 13. Focusing on the left eye, the light emitted by the N second display screens 21 is focused by the N third optical elements 22 onto the fourth optical element 23, and the light focused on the fourth optical element 23 is focused by the fourth optical element 23 to the right eye. Since N is greater than 2, and the N first display screens 11 and the N second display screens 21 can be focused on the human eye through the optical element, the left eye and the right eye can respectively receive N first displays. The optical splicing content displayed by the two display screens of the screen 11 and the N second display screens is such that the head-mounted display device of the present invention has improved resolution and improved viewing angle compared to the prior art.

Alternatively, the first optical system 10 and the second optical system 20 are identical in structure.

For example, the first optical system 10 and the second optical system 20 are identical in structure, and the first display system 11 includes a first display screen 11 that is identical to the second display screen 21 included in the second optical system 20, and the first display screen The number of 11 is the same as the number of the second display screens 21, the first optical element 10 includes the first optical element 12 and the second optical element 20 includes the third optical element 22, and the first optical element 12 The number is the same as the number of the third optical elements 22, and the second optical element 13 included in the first optical system 10 is the same as the fourth optical element 23 included in the second optical system 20.

Alternatively, the first optical element 12, the second optical element 13, the third optical element 22, and the fourth optical element 23 are focusing mirrors.

For example, as shown in FIG. 2, the first optical element 12, the second optical element 13, the third optical element 22, and the fourth optical element 23 are each a focusing lens group composed of a plurality of optical lenses. The first optical element 12 and the third optical element 21 may be the same focusing mirror group or different focusing mirror groups; the second optical element 13 and the fourth optical element 23 may be the same focusing mirror group or may be Different focusing mirror groups; the first optical element 12, the second optical element 13, the third optical element 22, and the fourth optical element 23 may be the same focusing mirror group or different focusing mirror groups; The invention is not limited.

Optionally, the focusing mirror group includes a color changing lens.

For example, the color-changing lens is a color-changing glass. The color-changing glass is a glass that changes its color under irradiation of light of a suitable wavelength, and returns to its original color when the light source is removed. For example, the light intensity is high, and the color of the glass is deep. Low luminosity. On the contrary, the light intensity is low, the color of the glass is light, and the light transmittance is high. It can be seen that adding color-changing glass to the focusing mirror group can adjust the light transmittance through the color change of the color-changing glass, so that the human eye can adapt to the change of the ambient light, thereby reducing the visual fatigue, thereby protecting the eye. Optionally, the position of the color lens in the focusing lens group may be the position closest to the display screen, or the position farthest from the display screen, or other positions, which is not limited by the present invention.

Alternatively, the second optical element 13 and the fourth optical element 23 comprise convex lenses.

For example, as shown in FIG. 3, since the convex lens has a function of collecting light, the second optical element 13 included in the first optical system and the fourth optical element 23 included in the second optical system may be convex lenses.

Alternatively, the first optical element 12, the second optical element 13, the third optical element 22, and the fourth optical element 23 are detachably replaceable.

Optionally, the distance between any two adjacent first display screens 11 can be adjusted within a first preset range, and the distance between any two adjacent second display screens 21 can be at a second preset. Adjustment within range.

For example, the distance between any two adjacent first display screens 11 can be adjusted within a first predetermined range to indicate a non-compact structure with a gap between two adjacent first display screens 11, The first preset range may be determined according to the focal length of the first optical component 12, and the distance between any two adjacent second display screens 21 may be adjusted within the second preset range to indicate two adjacent second displays. Between the screens 21 is a non-closed structure with a gap, and the second predetermined range can be determined according to the focal length of the third optical element 22.

Optionally, each of the first optical elements 12 is disposed under the optical path corresponding to the first display screen 11, and the optical axes of the first optical elements 12 are perpendicular to the corresponding first display screen 11; the third optical elements 22 are correspondingly disposed. Below the optical path of the second display screen 21, and the optical axis of each of the third optical elements 22 is perpendicular to the corresponding second display screen 21.

For example, in order to cause parallel light to enter the first optical element 12 and the third optical element 22, each first optical element 12 is placed under the optical path corresponding to the first display screen 11, and the optical axis of each first optical element 12 Vertically to the first display screen 11, and each third optical element 22 is placed under the optical path corresponding to the second display screen 21, and the optical axis of each of the third optical elements 22 vertically corresponds to the second display screen 21. In order to make the human eye view all the pictures displayed on the display screen, it is necessary to make the light emitted by the display screen enter the first optical element 12 as much as possible, such as the first optical element 12 and the first display screen 11 are large and in the first display screen. Directly under 11 Further, the first optical element 12 is larger than the first display 11 and the first display 11 is vertically projected into the first optical element 12. The third optical element 22 is the same as the second display screen 21 and will not be described again. In other embodiments, the display area of the first display screen 11 or the second display screen 21 may be larger than the cross-sectional area of the first optical element 12 or the third optical element 22 in order to achieve panoramic display.

Alternatively, the first optical system 10 and the second optical system 20 can be close to each other and can be used by users of different lay lengths.

For example, the head-mounted display device disclosed in the present invention further includes an adjustment mechanism, which is adjusted in order to enable different users to comfortably use the head-mounted display device disclosed by the present invention. The mechanism can adjust the position of the first optical system 10 and the second optical system 20, for example, the adjustment mechanism rotates counterclockwise, the first optical system 10 moves horizontally to the left, and the second optical system 20 moves horizontally to the right, the adjustment mechanism is clockwise Rotation, the first optical system 10 is horizontally shifted to the right, and the second optical system 20 is horizontally shifted to the left. It can be seen that the position of the first optical system 10 and the second optical system 20 can be adjusted by the user through the adjustment mechanism, thereby being different. Used by users of the distance.

Alternatively, the distance between the N first display screens 11 and the N first optical elements 12 can be adjusted synchronously; the distance between the N second display screens 21 and the N third optical elements 22 can be adjusted synchronously.

For example, myopia is imaged in front of the retina of the eye, and hyperopia is imaged behind the retina of the eye. Therefore, the user can synchronously adjust the N first display screens 11 and the N first optical elements 12 according to actual conditions. The distance between the two second display screens 21 and the N third optical elements 22 are adjusted to adjust the position of the image. For example, the near vision syncs the N first display screens 11 and the N first frames. The distance between the optical elements 12 is reduced, and the distance between the N second display screens 21 and the N third optical elements 22 is simultaneously reduced. For example, the far vision syncs the N first display screens 11 and N. The distance between the first optical elements 12 is increased, and the distance between the N second display screens 21 and the N third optical elements 22 is simultaneously increased.

Wherein, the distance between each of the first display screens 11 and the N first optical elements 12 is synchronously adjusted, and the distance between the N second display screens 21 and the N third optical elements 22 is synchronously adjusted, which can be adopted by the present invention. The disclosed head mounted display device further includes another adjustment mechanism that can synchronously adjust the position of the display screen and the optical element, such as the other adjustment mechanism rotating counterclockwise, the N first display screens 11 moving vertically downward The N first optical elements 12 move vertically upwards, for example, the other adjustment mechanism rotates clockwise, the N first display screens 11 move vertically upward, and the N first optical elements 12 move vertically downwards. move. The N second display screens are identical to the N third optical components, and are not described herein.

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or some of the technical features are replaced by equivalents; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

A head mounted display device, comprising: a first optical system and a second optical system; the first optical system comprising N first display screens, N first optical elements, and second optical elements, The N first display screens are in one-to-one correspondence with the N first optical elements, and the light emitted by the N first display screens is focused on the second optical elements by the N first optical elements. Light focused on the second optical element is focused by the second optical element to the left eye; the second optical system includes N second display screens, N third optical elements, and a fourth optical element, The N second display screens are in one-to-one correspondence with the N first optical elements, and the light emitted by the N second display screens is focused by the N third optical elements on the fourth optical element, focusing Light from the fourth optical element is focused by the fourth optical element to the right eye; the N is an integer greater than or equal to 2.
The head mounted display device according to claim 1, wherein the first optical system and the second optical system are identical in structure.
The head mounted display device according to claim 1, wherein the first optical element, the second optical element, the third optical element, and the fourth optical element are focusing mirror groups.
The head mounted display device according to claim 3, wherein the focusing lens group comprises a color changing lens.
A head mounted display device according to claim 1, wherein said second optical element and said fourth optical element comprise convex lenses.
The head mounted display device according to any one of claims 1 to 5, wherein the first optical element, the second optical element, the third optical element, and the fourth optical element are Disassembly and replacement.
The head-mounted display device according to any one of claims 1 to 5, wherein a distance between any two adjacent first display screens is adjustable within a first preset range, any two The distance between adjacent ones of the second display screens can be adjusted within a second predetermined range.
The head-mounted display device according to any one of claims 1 to 5, wherein each of the first optical elements is disposed under the optical path corresponding to the first display screen, and the optical axes of the respective first optical elements are perpendicular to the corresponding a first display screen; each of the third optical elements is disposed under the optical path corresponding to the second display screen, and an optical axis of each of the third optical elements is perpendicular to the corresponding second display screen.
A head mounted display device according to any one of claims 1 to 5, wherein the first optical system and the second optical system are close to or away from each other.
The head mounted display device according to any one of claims 1 to 5, wherein a distance between the N first display screens and the N first optical elements is synchronously adjustable; The distance between the second display screen and the N third optical elements can be adjusted synchronously.