CN115774335B - Virtual image display device - Google Patents
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- CN115774335B CN115774335B CN202211412225.9A CN202211412225A CN115774335B CN 115774335 B CN115774335 B CN 115774335B CN 202211412225 A CN202211412225 A CN 202211412225A CN 115774335 B CN115774335 B CN 115774335B
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Abstract
The invention discloses a virtual image display device, which comprises a shell, a display structure and a lens structure. The lens structure is used for amplifying the picture displayed by the display structure and projecting the picture to human eyes. The display structure comprises a main display module and two first auxiliary display modules. The main display module is arranged in parallel with the top plate of the shell and extends along the first direction. The two first auxiliary display modules are connected with two opposite edges of the main display module extending along the second direction, and extend along the direction away from the main display module in the third direction. The first auxiliary display module is used for displaying auxiliary images to increase the angle of view provided by the virtual image display device in a first direction. The two first auxiliary display modules are respectively positioned on two opposite sides of the lens structure.
Description
Technical Field
The invention relates to the technical field of virtual image display, in particular to virtual image display equipment.
Background
Virtual Reality (VR) is a Virtual world that utilizes computer simulation to generate a three-dimensional space, and provides a sense simulation of the user about vision, etc., so that the user can feel as if he is experiencing his environment, and can observe things in the three-dimensional space instantly and without limitation. The VR image display device includes a housing, a display screen housed in the housing, and a lens structure. The display picture on the display screen is projected to human eyes after being reflected by the refraction and reflection of the lens group. The two eyes of a person respectively correspond to a Field of View (FOV), and pictures seen by the left eye and the right eye are fused to form a 3D stereoscopic display effect. Wherein, the maximum field angle after binocular fusion can reach 200 degrees or more. However, due to structural limitations, the angle of view available with existing VR image display devices cannot fully cover the range of angles of view of the human eye, resulting in a black area for the human eye to perceive portions beyond the angle of view of the VR image display device.
Disclosure of Invention
The embodiment of the invention discloses virtual image display equipment which can cover the maximum field angle of human eyes, further achieve the effect of full viewing angle and is beneficial to improving the use experience of users.
In order to achieve the above object, the present invention discloses a virtual image display apparatus including:
a housing having a top plate and a plurality of sidewalls; the top plate and the side wall enclose an accommodating space;
The display structure is accommodated in the shell and used for displaying images; the display structure comprises a main display module and two first auxiliary display modules; the main display module is arranged in parallel with the top plate and extends along a first direction; the first auxiliary display module is connected with the edge of the main display module extending along the second direction and extends along the direction away from the main display module in the third direction; the main display module is used for displaying a main image; the first auxiliary display module is used for displaying auxiliary images so as to improve the angle of view provided by the virtual image display device in the first direction; wherein the first direction, the second direction and the third direction are perpendicular to each other; and
The lens structure is used for amplifying the picture displayed by the display structure and then projecting the picture to the pupil of the human eye; the lens structure and the top plate are symmetrically arranged on two sides of the main display module; the two first auxiliary display modules are respectively positioned on two opposite sides of the lens structure; wherein the first auxiliary display module extends to the rear of the pupil of the human eye when the virtual image display device is worn.
Compared with the prior art, the invention has the beneficial effects that:
By arranging the two first auxiliary display modules to be matched with the main display module, the image display is realized, so that the horizontal visual field angle of the human eyes is enlarged when the virtual image display device is worn, the oversized visual field angle exceeding 180 degrees can be provided, and the black area seen by the pupils of the human eyes is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a virtual image display apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of the housing of fig. 1.
Fig. 3 is a schematic perspective view of another angle of the display structure shown in fig. 1.
Fig. 4 is a schematic view of the display structure depicted in fig. 1 during manufacture.
Fig. 5 is a schematic view of a viewing angle of the virtual image display apparatus of fig. 1.
Fig. 6 is a schematic cross-sectional view of the virtual image display apparatus of fig. 1 along section line VI-VI.
Fig. 7 is a schematic perspective view of a virtual image display device according to a second embodiment of the invention
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.
The technical scheme of the invention will be further described with reference to the examples and the accompanying drawings.
Example 1
Fig. 1 is a schematic perspective view of a virtual image display device according to a first embodiment of the invention. In at least one embodiment of the present invention, the virtual image display apparatus 100a may be a head-mounted virtual image display apparatus. The virtual image display apparatus 100a includes a housing 10, a display structure 20, and a lens structure 30. The display structure 20 and the lens structure 30 are accommodated in the housing 10.
Referring to fig. 1 and 2, the housing 10 includes a top plate 11, an upper sidewall 13, a lower sidewall 14, a left sidewall 15 and a right sidewall 16. The top plate 11, the upper side wall 13, the lower side wall 14, the left side wall 15, and the right side wall 16 together define a housing space 101. The accommodating space 101 is used for accommodating the display structure 20 and the lens structure 30. The upper side wall 13 and the lower side wall 14 are symmetrically arranged, and the left side wall 15 and the right side wall 16 are symmetrically arranged. The upper side wall 13, the lower side wall 14, the left side wall 15 and the right side wall 16 are connected end to end, and arc-shaped chamfers are formed at the connection positions. In at least one embodiment of the present invention, each of the top plate 11, the left side wall 15, and the right side wall 16 has a substantially rectangular parallelepiped plate shape; the edges of the upper side wall 13 and the lower side wall 14 away from the top plate 11 are curved. The upper side wall 13 and the lower side wall 14 are formed by extending two opposite edges of the top plate 11 extending in the first direction X perpendicularly to the third direction Z. The lower side wall 14 is notched 103 at the edge remote from the top plate 11. In at least one embodiment of the present invention, the notch 103 is generally "V" shaped. In use, the notch 103 is for receiving a nose bridge of a person. The left side wall 15 and the right side wall 16 are formed by extending two opposite edges of the top plate 11 along the second direction Y perpendicularly to the third direction Z. In at least one embodiment of the present invention, the first direction X, the second direction Z, and the third direction Y are perpendicular to each other to form a rectangular coordinate system.
Please refer to fig. 1-3, which are schematic diagrams illustrating the display structure 20. The display structure 20 comprises a main display module 21, two first auxiliary display modules 23 and two second auxiliary display modules 25. In at least one embodiment of the present application, the connection between the main display module 21 and the first auxiliary display module 23 and the second auxiliary display module 25 is combined using a curved surface cutting technique, and the first auxiliary display module 23 and the second auxiliary display module 25 are manufactured from a flexible display material. As shown in fig. 4, four corners of the rectangular display screen may be cut out into four equal-sized rectangles to form the main display module 21, the first auxiliary display module 23, and the second auxiliary display module 25 during the manufacturing process. Since the material of which the display structure 20 is made does not have stretching ability, a slit 201 is provided between the first auxiliary display module 23 and the adjacent second auxiliary display module 25. In at least one embodiment of the present application, the shape of the cutout 201 is a rectangular area cut out during the manufacturing process. That is, there is no display area at the junction of the first auxiliary display module 23 and the adjacent second auxiliary display module 25, thereby reducing the difficulty in manufacturing the display module 20. In other embodiments, the main display module 21, the first auxiliary display module 23 and the second auxiliary display module 25 are in a spliced structure, so that different PPIs can be adopted for the (Pixel per Inch, PPI) of the main display module 21, the first auxiliary display module 23 and the second auxiliary display module 25. In a preferred embodiment, the visual edge position (i.e., at a large field angle) has less impact on the viewing experience of the person than the visual center position, which may be implemented using a lower definition display module. That is, the PPI of the main display module 21 is greater than the PPI of the first auxiliary display module 23 and the second auxiliary display module 25. In at least one embodiment of the present application, when the first auxiliary display module 23 and the second auxiliary display module 25 are partially wrapped behind the pupil 200 of the human eye while the virtual image display device 100a is worn, the angle of view provided by the virtual image display device 100a may cover the angle of view of the pupil 200 of the human eye, so as to achieve a full view effect.
The main display module 21 is disposed in parallel with the top plate 11. The main display module 21 is directly opposite to the pupil 200 of the human eye when the virtual image display apparatus 100a is worn. The main display module 21 is used for displaying a main image. In at least one embodiment of the present invention, the main display module 21 is substantially rectangular and is adapted to the size of the top plate 11; wherein the main display module 21 has two main display areas symmetrically arranged along the second direction Y, corresponding to the left pupil and the right pupil, respectively. In other embodiments of the present invention, the main display module 21 may include two separate sub-displays symmetrically disposed along the second direction Y, corresponding to the left pupil and the right pupil, respectively.
The two first auxiliary display modules 23 are symmetrically disposed at both sides of the main display module 21 and surround the sides of the lens structure 30. The two first auxiliary display modules 23 are disposed parallel to the left sidewall 15 and the right sidewall 16, respectively, and perpendicular to the top plate 11. That is, the first auxiliary display module 23 is connected to an edge of the main display module 21 in the second direction Y. The two first auxiliary display modules 23 are used to display auxiliary images to increase the angle of view that the virtual image display device 100a can provide in the first direction X. When the virtual image display apparatus 100a is worn, two of the first auxiliary display modules 23 are located at the left and right sides of the human eye pupil 200, respectively. In at least one embodiment of the present invention, as shown in fig. 5, two of the first auxiliary display modules 23 are used to cooperate with the main display module 21 to optimize the viewing angle of the virtual image display apparatus 100 in the horizontal direction.
The connection between the first auxiliary display module 23 and the main display module 21 forms an arc chamfer. In at least one embodiment of the present invention, as shown in fig. 6, the arc length AB of the arc chamfer at the connection between the first auxiliary display module 23 and the main display module 21 may range from 1 mm to 30 mm, and may be 5mm, 10 mm, 20 mm, or the like.
When the virtual display device 100a is worn, a perpendicular line between the edge of the first auxiliary display module 23 away from the main display module 21 and the adjacent pupil 200 of the human eye is taken as a first connecting line L1, a perpendicular line between the pupil 200 of the human eye and the top plate 11 is taken as a second connecting line L2, and an included angle between the first connecting line L1 and the second connecting line L2 is defined as a first included angle Φ1; the first included angle phi 1 may vary from 80 deg. to 100 deg., and may be, for example, 85 deg., 90 deg., 95 deg., etc. Accordingly, the auxiliary image displayed by the first auxiliary display module 23 located at the side of the human eye pupil 200 may be further projected to the human eye pupil 200, increasing the angle of view provided by the virtual display device 100a in the first direction X, and reducing the black area seen by the human eye pupil 200, compared to a structure having only the main display module 21.
The two second auxiliary display modules 25 are symmetrically disposed on both sides of the main display module 21 and surround the sides of the lens structure 30. The two second auxiliary display modules 25 are respectively disposed parallel to the upper sidewall 13 and the lower sidewall 14 and perpendicular to the top plate 11. That is, the second auxiliary display module 25 is connected to an edge of the main display module 21 in the first direction X. The two second auxiliary display modules 25 are used to display auxiliary images to increase the angle of view provided by the virtual image display apparatus 100. When the virtual image display apparatus 100a is worn, two of the second auxiliary display modules 25 are located above and below the pupil 200 of the human eye, respectively.
In at least one embodiment of the present invention, as shown in fig. 5, the second auxiliary display module 25 corresponding to the upper sidewall 13 is used to cooperate with the main display module 21 to optimize the angle of view of the virtual image display apparatus 100 in the vertical direction and above the pupil 200 of the human eye.
As shown in fig. 5, the second auxiliary display module 25 corresponding to the lower sidewall 14 is used to cooperate with the main display module 21 to optimize the angle of view of the virtual image display apparatus 100a in the vertical direction and below the pupil 200 of the human eye. The connection between the second auxiliary display module 25 and the main display module 21 forms an arc chamfer. When the virtual display device 100a is worn, a perpendicular line between the edge of the second auxiliary display module 25 located above the human eye pupil 200 and the human eye pupil 200 adjacent to the edge of the main display module 21 is taken as a third connecting line L3, and an included angle between the third connecting line L3 and the second connecting line L2 is defined as a second included angle phi 2; the second included angle may vary from 40 ° to 80 °, and exemplary may be 50 °,60 °,70 °, etc. The second auxiliary display module 25 located below the human eye pupil 200 is far away from the perpendicular line between the edge of the main display module 21 and the human eye pupil 200 adjacent thereto as a fourth connecting line L4, and an included angle between the fourth connecting line L4 and the second connecting line L2 is defined as a third included angle Φ3; the third included angle phi 3 may vary from 50 deg. to 90 deg., and exemplary angles may be 60 deg., 70 deg., 80 deg., etc. Accordingly, the auxiliary image displayed by the second auxiliary display module 25 located at the side of the human eye pupil 200 can be further projected to the human eye pupil 200, increasing the angle of view provided by the virtual display device 100a in the second direction Y, and reducing the black area seen by the human eye pupil 200, compared to a structure having only the main display module 21.
The lens structure 30 is used for magnifying the image displayed by the display structure 20 and projecting the magnified image to the human eye. The lens structure 30 and the top plate 11 are symmetrically arranged at two sides of the main display module 21; the first auxiliary display module 23 and the second auxiliary display module 25 cover the sides of the lens structure 30. The lens structure 30 includes a first lens group 31 and a second lens group 32. Wherein the first lens group 31 and the second lens group 32 are disposed opposite to the two main display areas of the main display module 21, respectively. In at least one embodiment of the present invention, each of the first lens group 31 and the second lens group 32 includes at least two lenses.
The above-mentioned virtual image display apparatus 100a, by providing the first auxiliary display module 23 and the second auxiliary display module 25 to display the auxiliary image matched with the main image displayed by the main display module 21, makes the angle of view of the human eye in the horizontal direction and the vertical direction enlarged when the virtual image display apparatus is worn, can provide an oversized viewing angle exceeding 180 °, and reduces the black area seen by the pupil 200 of the human eye. Meanwhile, the main display module 21 and the first and second auxiliary display modules 23 and 25 are set to have different pixel densities, so that the manufacturing cost of the virtual image display apparatus 100a can be reduced.
Example two
Fig. 7 is a schematic perspective view of the virtual image display apparatus 100b according to the second embodiment. The virtual image display apparatus 100b of the second embodiment has a similar structure to the virtual image display apparatus 100a of the first embodiment. That is, the description of the virtual image display apparatus 100a in the first embodiment is basically applicable to the virtual image display apparatus 100b in the second embodiment, and the main difference between them is that: the display structure 20. Specifically, in the second embodiment, the display structure 20 includes the main display module 21 and two first auxiliary display modules 23. The main display module 21 and the two first auxiliary display modules 23 are integrally formed and made of flexible and stretchable display materials, so that a display area still exists at the junction of the first auxiliary display module 23 and the adjacent second auxiliary display module 25, and the display area of the display structure 20 can be increased. That is, the main display module 21 and the first auxiliary display module 23 have the same PPI. Meanwhile, there is no disconnected position between the main display module 21 and the first auxiliary display module 23, i.e., the cutout 201 is not present.
The above-mentioned virtual image display apparatus 100b, by setting the first auxiliary display module 23 to display an auxiliary image matched with the main image displayed by the main display module 21, such that the angle of view of the human eye in the horizontal direction is enlarged when the virtual image display apparatus 100b is worn, can provide an ultra-large viewing angle exceeding 180 °, reducing the black area seen by the pupil 200 of the human eye. Meanwhile, the main display module 21 and the first auxiliary display module 23 are integrally formed, so that the manufacturing difficulty of the virtual image display apparatus 100b can be reduced.
The virtual image display device disclosed in the embodiment of the present invention is described in detail, and specific examples are applied to illustrate the principles and embodiments of the present invention, where the description of the above embodiments is only for helping to understand the electronic device, the shooting direction control method and the core idea thereof; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present invention, the present disclosure should not be construed as limiting the present invention in summary.
Claims (10)
1. A virtual image display apparatus, characterized in that the virtual image display apparatus comprises:
a housing having a top plate and a plurality of sidewalls; the top plate and the side walls enclose an accommodating space;
The display structure is accommodated in the shell and used for displaying images; the display structure comprises a main display module and two first auxiliary display modules; the main display module is arranged in parallel with the top plate and extends along a first direction; the two first auxiliary display modules are respectively connected with two opposite edges of the main display module extending along the second direction and extend along the direction away from the main display module in the third direction; the main display module is used for displaying a main image; the first auxiliary display module is used for displaying auxiliary images so as to improve the angle of view provided by the virtual image display device in the first direction; wherein the first direction, the second direction and the third direction are perpendicular to each other; and
The lens structure is used for amplifying the picture displayed by the display structure and then projecting the picture to the pupil of the human eye; the lens structure and the top plate are symmetrically arranged on two sides of the main display module; the two first auxiliary display modules are respectively positioned on two opposite sides of the lens structure; wherein the first auxiliary display module extends to the rear of the pupil of the human eye when the virtual image display device is worn.
2. The virtual image display apparatus according to claim 1, wherein: the main display module and the first auxiliary display module are of an integrated structure.
3. The virtual image display apparatus according to claim 1, wherein: when the virtual image display device is worn, a perpendicular line between the edge of the first auxiliary display module far away from the main display module and the pupil of the human eye adjacent to the edge of the first auxiliary display module is used as a first connecting line, a perpendicular line between the pupil of the human eye and the top plate is used as a second connecting line, an included angle between the first connecting line and the second connecting line is defined as a first included angle, and the first included angle is 80-100 degrees.
4. The virtual image display apparatus according to claim 1, wherein: the virtual image display device further comprises two second auxiliary display modules; the two second auxiliary display modules are connected with two opposite edges of the main display module extending along the first direction, and form an included angle with the main display module in the third direction; the second auxiliary display module is used for displaying auxiliary images so as to improve the angle of view provided by the virtual image display device in the second direction; when the virtual image display device is worn, the two second auxiliary display modules are respectively positioned above and below the pupils of the human eyes.
5. The virtual image display apparatus according to claim 4, wherein: the main display module, the first auxiliary display module and the second auxiliary display module are of a splicing structure; the first auxiliary display module and the second auxiliary display module are manufactured from flexible display materials; and a notch is arranged between the adjacent first auxiliary display module and the second auxiliary display module on the same side of the main display module.
6. The virtual image display apparatus according to claim 5, wherein: the pixel density of the main display module is greater than that of the first auxiliary display module and the second auxiliary display module.
7. The virtual image display apparatus according to claim 4, wherein: when the virtual image display device is worn, a perpendicular line from the pupil of the human eye to the top plate is used as a second connecting line, a perpendicular line between the edge, away from the main display module, of the second auxiliary display module above the pupil of the human eye and the pupil of the human eye adjacent to the edge is used as a third connecting line, and an included angle between the third connecting line and the second connecting line is defined as a second included angle; the second included angle is 40-80 degrees.
8. The virtual image display apparatus according to claim 4, wherein: when the virtual image display device is worn, a perpendicular line from the pupil of the human eye to the top plate is used as a second connecting line, a perpendicular line connecting the edge, away from the main display module, of the second auxiliary display module located below the pupil of the human eye and the adjacent pupil of the human eye is used as a fourth connecting line, an included angle between the fourth connecting line and the second connecting line is defined as a third included angle, and the third included angle is 50-90 degrees.
9. The virtual image display apparatus according to claim 1, wherein: the virtual image display device provides a field angle in the range of 80 ° -100 ° when worn.
10. The virtual image display apparatus according to claim 1, wherein: an arc chamfer is formed at the joint of the first auxiliary display module and the main display module; the arc length of the arc chamfer ranges from 1 millimeter to 30 millimeters.
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