CN107422845A - A kind of virtual reality wears display device and picture display process - Google Patents

Abstract

The invention discloses a kind of virtual reality to wear display device, including wears display device body, and the display device body of wearing includes：Left display screen, right display screen, the left display screen, right display screen mutually form angle；Left optical mirror slip is provided with front side of the left display screen along the left display screen glazed thread transmission direction, right optical mirror slip is provided with front side of the right display screen along the right display screen glazed thread transmission direction.The present invention can form the angle of visual field more than 120 ° using the left and right display screen of angle, and the left and right optical mirror slip of relative set is mutually, so as to increase the angle of visual field and greatly improve feeling of immersion of the user to virtual reality scenario, telepresenc.

Description

A virtual reality head-mounted display device and screen display method

technical field

The invention relates to the field of virtual reality technology, in particular to a virtual reality head-mounted display device and a screen display method.

Background technique

Field of View (FOV for short), in the display system, the field of view is the angle between the edge of the display and the connecting line of the eye; as shown in Figure 2, ∠AOB is the horizontal field of view, ∠BOC is the vertical field of view field angle.

The human visual system includes; monocular FOV refers to the field of view of a single eye, and binocular FOV refers to the total field of view of the two eyes. Among them, the human binocular FOV field of view angle is about 200 degrees to 220 degrees.

At present, the field of view of a virtual reality helmet (VR helmet) usually refers to the horizontal field of view, which is basically 80° FOV and 90° FOV of a 5.7-inch screen, and the largest field of view is 100°, 110°, 120° °, but the field of view is usually limited to within 120°. The size of its field of view determines the presence and immersion of the user experience.

At present, the field of view of virtual reality helmets is limited to within 120°, and some virtual reality helmets are even limited to 80°. However, human peripheral vision can see a field of view of about 200°, and the virtual reality helmets on the market can only require users to look straight ahead when using them, and the peripheral vision cannot see any scene.

Therefore, when a user uses a virtual reality helmet to experience a virtual reality scene, the user feels that the virtual reality scene is always separated by a window, and cannot truly immerse into the virtual reality world. None of the virtual reality helmets on the market can really meet the needs of users, and users can't really appreciate the charm of virtual reality at all.

Contents of the invention

The purpose of the present invention is to provide a virtual reality head-mounted display device and a screen display method, which can effectively solve the problem of reducing user experience due to the limited viewing angle.

The technical scheme provided by the invention is as follows:

The present invention provides a virtual reality head-mounted display device, which includes a head-mounted display device body. The head-mounted display device body includes: a left display screen and a right display screen, and the left display screen and the right display screen form an angle with each other; A left optical lens is provided on the front side of the left display screen along the light transmission direction on the left display screen, and a right optical lens is provided on the front side of the right display screen along the light transmission direction on the right display screen.

Further, the left angle formed by the left display screen and the reference line is 10°-30°, and the right angle formed by the right display screen and the reference line is 10°-30°; the reference line refers to A straight line from the midpoint of the side of the left display screen away from the right display screen to the midpoint of the side of the right display screen away from the left display screen.

Further, the left major axis of the left optical lens and the right major axis of the right optical lens are both 55-80 cm, and the left minor axis of the left optical lens and the right minor axis of the right optical lens are both 50-60 mm.

Further, the distance from the left focal point of the left optical lens to the right vertical line where the right endpoint of the left major axis on the left optical lens is located is 25-35mm, and the right vertical line is perpendicular to the left major axis; The distance from the right focal point of the right optical lens to the left vertical line where the left end point of the right major axis on the right optical lens is located is 25-35 mm; the left vertical line is perpendicular to the right major axis.

Further, the installation distance between the left focus point of the left optical lens and the right focus point of the right optical lens is 58-78 mm.

Further, the left optical lens and the right optical lens are both plano-convex lenses or biconvex lenses or convex-convex lenses; when the left optical lens and the right optical lens are both plano-convex lenses, the left plane of the left optical lens is parallel to the left The display screen is arranged, and the right plane of the right optical lens is arranged parallel to the right display screen.

The present invention also provides a screen display method for a virtual reality head-mounted display device, including the virtual reality head-mounted display device, and further comprising the following steps: S10, acquiring the screen data to be displayed of the virtual reality head-mounted display device; S20, according to the left display Screen, the angle formed by the right display screen, the image data to be displayed is re-projected to form the image data; S30, the left display screen and the right display screen on the virtual reality head-mounted display screen data.

Further, the step S20 further includes: S21, according to the 10°-30° left angle formed by the left display screen and the reference line, re-projecting the image data to be displayed to form left image data; S22, According to the 10°-30° right angle formed by the right display screen and the reference line, the right image data is formed after re-projecting the image data to be displayed; the step S30 further includes: S31, in the virtual Displaying the left picture data on the left display screen of the reality head-mounted display device; S32. Displaying the right picture data on the right display screen of the virtual reality head-mounted display device.

The present invention also provides a screen display method for a virtual reality head-mounted display device, which includes the virtual reality head-mounted display device, and further includes the following steps: S10, according to the angle formed by the left display screen and the right display screen, respectively capture virtual The picture data of the reality head-mounted display device; S20. Display the picture data on the left display screen and the right display screen of the virtual reality head-mounted display device respectively.

Further, the step S10 further includes: S11. According to the 10°-30° left angle formed between the left display screen and the reference line, according to the left shooting angle of 10°-30°, capture the image of the virtual reality head-mounted display device. Left picture data; S12. According to the 10°-30° right angle formed between the right display screen and the reference line, according to the right shooting angle of 10°-30°, ingest the right picture data of the virtual reality head-mounted display device; The step S20 further includes: S21, displaying the left picture data on the left display screen on the virtual reality head-mounted display device; S22, displaying the left picture data on the right display screen on the virtual reality head-mounted display device Right frame data.

Compared with the prior art, the present invention has the following advantages:

1. The present invention utilizes the left and right display screens which form an included angle with each other, and the corresponding left and right optical lenses can form a field of view greater than 120°, thereby increasing the field of view and greatly improving the user's perception of virtual reality. The sense of immersion and presence in the real scene.

2. In the present invention, the left display screen and the reference line, and the right display screen and the reference line form 10-30° respectively, so that the viewing angle of the head-mounted display device increases to 220°.

3. In the present invention, the display screen becomes larger, and its optical lens also becomes larger correspondingly, so that the user can watch all the pictures displayed on the display screen. Since the user's eye distance is fixed and inconvenient, the focal point will change accordingly when the optical lens becomes larger. In order to better meet the user's experience, the focal point is not located on the center line of the optical lens, but on the left The focus point and the right focus point are close to each other.

4. In the present invention, the prepared picture data to be displayed can be played on the virtual reality helmets on the market; since the left and right display screens form an included angle in the present invention, if it is played directly, the viewing angle of the present invention It is different from the viewing angle of virtual reality helmets on the market. In order to make the viewing angle in the present invention consistent with the viewing angle of the virtual reality helmets on the market, the data to be displayed is re-projected and then played to improve user experience.

5. In the present invention, the image data to be displayed can be produced directly according to the angle formed by the left and right display screens, so that its viewing angle is consistent with that of the virtual reality helmets on the market, improving user experience.

Description of drawings

In the following, preferred embodiments will be described in a clear and understandable manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of a virtual reality head-mounted display device and a screen display method will be further described.

Fig. 1 is a schematic diagram of a display screen and an optical mirror on a virtual reality head-mounted display device;

Fig. 2 is a schematic diagram of a human perspective system;

Fig. 3 is a schematic diagram of an 80° field of view when viewing a display screen;

Fig. 4 is a schematic diagram of a 90° field of view angle when viewing a display screen;

Fig. 5 is a schematic diagram of a 110° field of view angle when viewing a display screen;

6 is a schematic diagram of a display screen and an optical mirror on a virtual reality head-mounted display device in the present invention;

7 is a schematic cross-sectional view of a display screen and an optical mirror on a virtual reality head-mounted display device in the present invention;

Fig. 8 is a schematic diagram projected on a display screen;

Fig. 9 is a schematic diagram projected on two display screens forming an angle.

Explanation of reference numbers:

10—left display 11—right display

20—left optical lens 21—right optical lens

detailed description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

As shown in Figures 1 to 7, according to an embodiment of the present invention, a virtual reality head-mounted display device includes a head-mounted display device body, and the head-mounted display device body includes: a left display screen 10, a right display screen 11. The left display screen 10 and the right display screen 11 form an included angle with each other, and the included angle is within 30°; The left optical lens 20 is provided with a right optical lens 21 on the front side of the right display screen 11 along the light transmission direction on the right display screen 11 . Preferably, the left angle ∠a formed by the left display screen 10 and the reference line H is 10°-30° (equivalent to the angle formed by the left display screen 10 and the horizontal direction is 10°-30°), For example, the left included angle ∠a is 10°, 15°, 20°, 25°, 30°, etc.; the right included angle ∠b formed by the right display screen 11 and the reference line H is 10°～30° (equivalent to The angle formed by the right display screen 11 and the horizontal direction is 150°～170°), for example, the right angle ∠b is 10°, 15°, 20°, 25°, 30°, etc.; the reference line H It refers to a straight line from the midpoint of the side of the left display screen 10 away from the right display screen 11 to the midpoint of the side of the right display screen 11 far away from the left display screen 10 .

Currently, the field of view (the total angle between the left edge seen by the left eye and the right edge seen by the right eye) of virtual reality helmets on the market is 80°, 90°, and 110°, as shown in Figure 3, Figure 4, and Figure 5 . The entire display system includes a display screen and optical lenses. The display screen is divided into two, the left and right sides are the content seen by one eye respectively, and the two eyes intersect to form the position in the space, giving people a three-dimensional effect. Then the display area on a single screen is very limited. If you need to increase the field of view, one way is to enlarge the screen. Another way is to get your eyes closer to the screen. The latter is obviously unrealistic because the eyes are already close enough to the screen. .

The virtual reality head-mounted display device provided by the present invention can be a virtual reality helmet, virtual reality glasses, etc., and besides including two display screens and two optical lenses, it also includes other conventional components, such as a nose pad, a fixed shell, etc. . The main improvement of the present invention is that two display screens are used, and each eye corresponds to one screen; as shown in Fig. 6 and Fig. 7, the two display screens form an angle with the horizontal front direction. In this way, the display area of each eye is increased respectively. However, the binocular field of view angle ∠FOV can reach 200 degrees or even larger. According to personal experience, the size of the market angle ∠FOV can be adjusted through the structure; that is, the size of the left angle ∠a and the right angle ∠b can be adjusted to reduce or increase the field of view angle ∠FOV.

The three-dimensional feeling presented to the user by the traditional virtual reality screen is that the 3D model is projected onto the 2D screen, and then transmitted to the human eye through the refraction of the optical lens, so that the human eye feels a three-dimensional object.

For the improvement of the above embodiment, in this embodiment, the left major axis on the left optical lens 20 and the right major axis of the right optical lens 21 are both 55-80 cm, for example: the left major axis and the right major axis can be 55 cm . , 53cm, 55cm, 58cm, 60cm, etc.

The distance from the left focal point f of the left optical lens 20 to the right vertical line where the right end point of the left major axis of the left optical lens 20 is located is 25-35mm, for example: 25mm, 28mm, 30mm, 32mm, 35mm, etc. The right vertical line is perpendicular to the left major axis; the distance from the right focus point g of the right optical lens 21 to the left vertical line where the left end point of the right major axis of the right optical lens 21 is located is 25-35mm , for example: 25mm, 28mm, 30mm, 32mm, 35mm, etc.; the left vertical line is perpendicular to the right long axis.

The installation distance between the left focus point f of the left optical lens 20 and the right focus point g of the right optical lens 21 is 58-78 mm, for example, the installation distance is 58, 62 mm, 66 mm, 70 mm, 74 mm, 78 mm, etc.

The left optical lens 20 and the right optical lens 21 are plano-convex lenses or biconvex lenses or convex-convex lenses; when the left optical lens 20 and the right optical lens 21 are plano-convex lenses, the left plane of the left optical lens 20 is parallel to The left display screen 10 is arranged, and the right plane of the right optical lens 21 is arranged parallel to the right display screen 11 .

The invention uses two large screens (left and right display screens), the left and right display screens form an included angle within 30°, and the improvement of the left and right optical lens structures makes the helmet with a large viewing angle into reality. Then, through the principle of VR imaging and projection, the projection software algorithm is carried out, so that the virtual reality screen is presented to the user at a real angle, bringing the ultimate sense of immersion and substitution to the user.

Limit the included angle of the structure within 30 degrees, use larger-diameter elliptical optical lenses, and then adjust the field of view angle to more than 200 degrees through optical lens refraction, and present the real angle of virtual reality to users, so that users can see In a scene as large as the real world, users will not see windows, and will not see structural black frames with limited viewing angles on both sides, which is full of sense of immersion. When the market angle ∠FOV is adjusted to 200 degrees or above, the user will not be able to see any black frame in the peripheral vision, and will be completely immersed in the virtual reality screen.

As shown in FIGS. 1 to 9 , according to another embodiment of the present invention, a screen display method of a virtual reality head-mounted display device, including a virtual reality head-mounted display device, includes the following steps: S10, acquiring a virtual reality head-mounted display device Display the screen data to be displayed of the device;

S20. According to the angle formed by the left display screen 10 and the right display screen 11, perform secondary projection on the image data to be displayed to form image data;

Preferably, the step S20 further includes: S21, according to the 10°-30° left angle ∠a formed by the left display screen 10 and the reference line, re-projecting the image data to be displayed to form a left image data;

S22. According to the 10°-30° right angle ∠b formed by the right display screen 11 and the reference line, perform secondary projection on the image data to be displayed to form right image data;

S30. Display the picture data on the left display screen 10 and the right display screen 11 of the virtual reality head-mounted display device respectively.

Preferably, the step S30 further includes: S31, displaying the left picture data on the left display screen 10 of the virtual reality head-mounted display device;

S32. Display the right picture data on the right display screen 11 on the virtual reality head-mounted display device;

Preferably, the virtual reality head-mounted display device includes: a left display screen 10 and a right display screen 11, and the left display screen 10 and the right display screen 11 form an angle within 30°; along the left display screen A left optical lens 20 is provided on the front side of the left display screen 10 in the direction of light transmission on 10 , and a right optical lens 21 is provided on the front side of the right display screen 11 along the direction of light transmission on the right display screen 11 .

Preferably, the left angle ∠a formed by the left display screen 10 and the reference line H is 10°-30°, and the right angle ∠b formed by the right display screen 11 and the reference line H is 10°-30°. 30°; the reference line H refers to the distance from the midpoint of the left display screen 10 away from the right display screen 11 to the midpoint of the right display screen 11 away from the left display screen 10 side straight line.

Preferably, the left major axis on the left optical lens 20 and the right major axis of the right optical lens 21 are both 55-80 cm, and the left minor axis on the left optical lens 20 and the right minor axis of the right optical lens 21 are both 55-80 cm. It is 50-60mm.

Preferably, the distance from the left focal point f of the left optical lens 20 to the right vertical line where the right end point of the left long axis on the left optical lens 20 is located is 25-35mm, and the right vertical line is perpendicular to the left long axis; the distance from the right focus point g of the right optical lens 21 to the left vertical line where the left end point of the right long axis on the right optical lens 21 is 25-35 mm; the left vertical line is perpendicular to the right long axis.

Preferably, the installation distance between the left focus point f of the left optical lens 20 and the right focus point g of the right optical lens 21 is 58-78 mm.

Preferably, the left optical lens 20 and the right optical lens 21 are plano-convex lenses; the left plane of the left optical lens 20 is arranged parallel to the left display screen 10, and the right plane of the right optical lens 21 is parallel to the The above-mentioned right display screen 11 is set.

Specifically, for the screen data to be displayed that can be viewed with virtual reality helmets or virtual reality glasses on the market, such as game videos, when using the virtual reality head-mounted display device provided by the present invention to watch game videos, it is first necessary to After the game video is re-projected according to the left angle ∠a and the right angle ∠b (please refer to the prior art for the principle of re-projection, and will not repeat it here), the game video is displayed on the left display screen 10 and the right display screen 11 respectively. on display. Correct the left angle ∠a formed by the left display screen 10 and the reference line of the present invention, and the right angle ∠b formed by the right display screen 11 and the reference line; so that when the user uses the virtual reality head-mounted display device provided by the present invention , and when using virtual reality helmets or glasses on the market, the viewing angle is the same, and the displayed image is consistent.

As shown in Figures 1 to 9, according to yet another embodiment of the present invention, a screen display method for a virtual reality head-mounted display device, including a virtual reality head-mounted display device, includes the following steps: S10, according to the left display screen 10 and the angle formed by the right display screen 11, respectively ingest the picture data of the virtual reality head-mounted display device;

Preferably, the step S10 further includes: S11. According to the 10°-30° left angle ∠a formed between the left display screen 10 and the reference line, according to the left shooting angle of 10°-30°, capture the virtual reality head The left screen data of the display device;

S12. According to the 10°-30° right included angle ∠b formed by the right display screen 11 and the reference line, according to the right shooting angle of 10°-30°, ingest the right picture data of the virtual reality head-mounted display device;

S20. Display the picture data on the left display screen 10 and the right display screen 11 of the virtual reality head-mounted display device respectively.

Preferably, the step S20 further includes: S21, displaying the left picture data on the left display screen 10 on the virtual reality head-mounted display device;

S22. Displaying the right picture data on the right display screen 11 on the virtual reality head-mounted display device;

Preferably, the virtual reality head-mounted display device includes: a left display screen 10 and a right display screen 11, and the left display screen 10 and the right display screen 11 form an angle within 30°; along the left display screen A left optical lens 20 is provided on the front side of the left display screen 10 in the direction of light transmission on 10 , and a right optical lens 21 is provided on the front side of the right display screen 11 along the direction of light transmission on the right display screen 11 .

Preferably, the left angle ∠a formed by the left display screen 10 and the reference line H is 10°-30°, and the right angle ∠b formed by the right display screen 11 and the reference line H is 10°-30°. 30°; the reference line H refers to the distance from the midpoint of the left display screen 10 away from the right display screen 11 to the midpoint of the right display screen 11 away from the left display screen 10 side straight line.

Preferably, the left major axis on the left optical lens 20 and the right major axis of the right optical lens 21 are both 55-80 cm, and the left minor axis on the left optical lens 20 and the right minor axis of the right optical lens 21 are both 55-80 cm. It is 50-60mm.

Preferably, the distance from the left focal point f of the left optical lens 20 to the right vertical line where the right end point of the left long axis on the left optical lens 20 is located is 25-35 mm, and the right vertical line is perpendicular to the left long axis; the distance from the right focus point g of the right optical lens 21 to the left vertical line where the left end point of the right long axis on the right optical lens 21 is 25-35 mm; the left vertical line is perpendicular to the right long axis.

Preferably, the installation distance between the left focus point f of the left optical lens 20 and the right focus point g of the right optical lens 21 is 58-78 mm.

Preferably, the left optical lens 20 and the right optical lens 21 are plano-convex lenses; the left plane of the left optical lens 20 is arranged parallel to the left display screen 10, and the right plane of the right optical lens 21 is parallel to the The above-mentioned right display screen 11 is set.

Specifically, when making the picture data to be displayed, the left picture data can be photographed or made according to the left angle ∠a between the left display screen 10 and the reference line. The right picture data can be photographed or produced according to the right angle ∠b between the right display screen 11 and the reference line. When using the virtual reality head-mounted display device provided by the present invention to watch, the left picture data can be played directly on the left display screen 10, and the right picture data can be played on the right display screen 11, without secondary projection; thereby providing the user's experience.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can be made without departing from the principle of the present invention. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A virtual reality head-mounted display device, comprising a head-mounted display device body, characterized in that, the head-mounted display device body includes: A left display screen and a right display screen, wherein the left display screen and the right display screen form an included angle with each other; A left optical lens is provided on the front side of the left display screen along the light transmission direction on the left display screen, and a right optical lens is provided on the front side of the right display screen along the light transmission direction on the right display screen. 2. The virtual reality head-mounted display device as claimed in claim 1, characterized in that: The left angle formed by the left display screen and the reference line is 10°-30°, and the right angle formed by the right display screen and the reference line is 10°-30°; The reference line refers to a straight line from the midpoint of the side of the left display screen away from the right display screen to the midpoint of the side of the right display screen away from the left display screen. 3. The virtual reality head-mounted display device as claimed in claim 1, characterized in that: The left major axis of the left optical lens and the right major axis of the right optical lens are both 55-80 cm, and the left minor axis of the left optical lens and the right minor axis of the right optical lens are both 50-60 mm. 4. The virtual reality head-mounted display device as claimed in claim 3, characterized in that: The distance from the left focal point of the left optical lens to the right vertical line where the right endpoint of the left major axis on the left optical lens is located is 25-35 mm, and the right vertical line is perpendicular to the left major axis; The distance from the right focal point of the right optical lens to the left vertical line where the left end point of the right major axis on the right optical lens is located is 25-35mm; the left vertical line is perpendicular to the right major axis. 5. The virtual reality head-mounted display device as claimed in claim 4, characterized in that: The installation distance between the left focus point of the left optical lens and the right focus point of the right optical lens is 58-78 mm. 6. The virtual reality head-mounted display device according to any one of claims 1-5, characterized in that: The left optical lens and the right optical lens are both plano-convex lenses or biconvex lenses or convex-convex lenses; When the left optical lens and the right optical lens are plano-convex lenses, the left plane of the left optical lens is arranged parallel to the left display screen, and the right plane of the right optical lens is arranged parallel to the right display screen. 7. A screen display method for a virtual reality head-mounted display device, comprising the virtual reality head-mounted display device according to claims 1 to 6, further comprising the following steps: S10. Acquiring the image data to be displayed of the virtual reality head-mounted display device; S20. According to the angle formed by the left display screen and the right display screen, perform secondary projection on the image data to be displayed to form image data; S30. Display the image data on the left display screen and the right display screen of the virtual reality head-mounted display device respectively. 8. The screen display method of a virtual reality head-mounted display device according to claim 7, wherein the step S20 further comprises: S21. According to the 10°-30° left angle formed between the left display screen and the reference line, perform secondary projection on the image data to be displayed to form left image data; S22. According to the 10°-30° right angle formed between the right display screen and the reference line, perform secondary projection on the image data to be displayed to form right image data; The step S30 further includes: S31. Display the left picture data on the left display screen on the virtual reality head-mounted display device; S32. Display the right picture data on the right display screen of the virtual reality head-mounted display device. 9. A screen display method for a virtual reality head-mounted display device, comprising the virtual reality head-mounted display device according to claims 1 to 6, further comprising the following steps: S10. According to the angle formed by the left display screen and the right display screen, respectively ingest the screen data of the virtual reality head-mounted display device; S20. Display the image data on the left display screen and the right display screen of the virtual reality head-mounted display device respectively. 10. The screen display method of a virtual reality head-mounted display device according to claim 9, wherein the step S10 further comprises: S11. According to the 10°-30° left angle formed by the left display screen and the reference line, according to the left shooting angle of 10°-30°, ingest the left picture data of the virtual reality head-mounted display device; S12. According to the 10°-30° right angle formed by the right display screen and the reference line, according to the right shooting angle of 10°-30°, ingest the right picture data of the virtual reality head-mounted display device; The step S20 further includes: S21. Display the left picture data on the left display screen on the virtual reality head-mounted display device; S22. Display the right picture data on the right display screen of the virtual reality head-mounted display device.