CN220367479U - Augmented reality display device - Google Patents

Abstract

The utility model discloses augmented reality display equipment, and relates to the field of near-eye display equipment. The augmented reality display device includes a display screen including a central display region; the optical system is arranged at the lateral direction of the display screen; the light supplementing structure is arranged on the outer side of the central display area and used for emitting light supplementing rays; the light emitting direction of the light supplementing structure is the same as that of the central display area. According to the augmented reality display device, the light supplementing structure is added on the periphery of the display screen, the light supplementing area is formed on the periphery of the display content of the augmented reality display device, so that the brightness of eyes is kept in a stable range when the eyes watch by using the augmented reality display device, the dazzling glare caused by the sudden increase of the brightness of the display content is reduced, and the eye protection effect is achieved.

Description

Augmented reality display device

Technical Field

The utility model relates to the field of near-eye display equipment, in particular to augmented reality display equipment.

Background

With the development of technology, the application of the enhanced display technology is becoming wider and wider. Augmented reality technology is a technology that combines virtual information with the real world. The augmented reality display device is to form a remote virtual image through an optical imaging element and project the remote virtual image into human eyes, and the virtual image and the real world are combined to obtain richer experience.

In the related art, when the augmented reality display device is applied, if the ambient light entering the field of view of the user is very small due to the fact that the device is provided with a sunshade mirror, the real ambient light is very dark, and the like, if a virtual image picture displayed by the augmented reality display device suddenly lightens, the user feels dazzling, glare is generated, and eye health is not facilitated.

Disclosure of Invention

The aim of the embodiment of the utility model is that: an augmented reality display device is provided that protects a user's eyes by introducing supplemental light around the display content.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an augmented reality display device, comprising:

a display screen including a central display area;

the optical system is arranged at the lateral direction of the display screen;

the light supplementing structure is arranged on the outer side of the central display area and used for emitting light supplementing rays; the light emitting direction of the light supplementing structure is the same as the light emitting direction of the central display area.

Optionally, a sunshade mirror;

in the x direction of the augmented reality display device, the optical system is arranged on one side of the display screen; in the y-direction of the augmented reality display device, the sunshade mirror is on one side of the optical system.

Optionally, the light supplementing structure is disposed on four sides of the central display area, or the light supplementing structure is disposed on two opposite sides of the central display area.

Optionally, the light supplementing structure comprises a light supplementing lamp and a light guide plate;

at least one part of the light guide plate is arranged outside the display screen; the light guide plate comprises an adjacent plate outer side face and an adjacent plate front side face, and the light supplementing lamp is arranged on the outer side of the plate outer side face; the light guide plate comprises a light adjusting part, and the light adjusting part is used for adjusting the light rays emitted into the light guide plate from the outer side surface of the plate to be emitted from the front side surface of the plate.

Optionally, the light guide plate includes a first plate portion and a second plate portion connected to each other; the display screen is installed in the first plate portion, the second plate portion is located the outside of display screen, the portion of adjusting luminance is located the second plate portion.

Optionally, the second plate portions are respectively disposed on four sides of the first plate portion; the light supplementing lamps are arranged on two opposite sides of the light guide plate.

Optionally, the light adjusting part is a concave hole formed in the light guide plate, and the light guide plate forms an orifice of the concave hole on the front side surface of the plate.

Optionally, the light supplementing structure comprises a reflecting plate, the reflecting plate is connected with the light guide plate, and a mounting groove is formed between the inner wall of the reflecting plate and the outer side surface of the light guide plate; the light supplementing lamp is arranged in the mounting groove.

Optionally, the reflecting plate is a U-shaped plate, and two ends of the reflecting plate are connected with the light guide plate.

Optionally, the display screen includes an edge display area, and the edge display area is located outside the central display area; the light supplementing structure is the edge display area.

Optionally, the light supplementing structure comprises a light supplementing lamp and a light homogenizing structure, the light homogenizing structure is arranged on the outer side of the display screen in the width direction and/or the length direction, and the light homogenizing structure is connected with the display screen; the light supplementing lamp is arranged at the rear side of the light homogenizing structure.

The beneficial effects of the utility model are as follows: according to the augmented reality display device, the light supplementing structure is added on the periphery of the display screen, the light supplementing area is formed on the periphery of the display content of the augmented reality display device, so that the brightness of eyes is kept in a stable range when the eyes watch by using the augmented reality display device, the dazzling glare caused by the sudden increase of the brightness of the display content is reduced, and the eye protection effect is achieved.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an augmented reality display device in the related art;

fig. 2 is a schematic diagram of one of light supplementing modes (not shown in the schematic diagram) of an augmented reality display device according to an embodiment of the utility model;

FIG. 3 is a schematic diagram illustrating a second light supplementing mode (not shown) of the augmented reality display device according to an embodiment of the utility model;

FIG. 4 is a schematic view of an augmented reality display device according to an embodiment of the present utility model;

FIG. 5 is a second schematic view of an augmented reality display device according to an embodiment of the present utility model;

fig. 6 is a schematic diagram illustrating cooperation between a light compensating structure and a display screen in a first light compensating structure setting mode of the augmented reality display device according to an embodiment of the utility model;

FIG. 7 is a cross-sectional view A-A' of FIG. 6;

FIG. 8 is a cross-sectional view B-B' of FIG. 6;

fig. 9 is a schematic diagram of a second light-compensating structure setting mode of the augmented reality display device according to an embodiment of the utility model;

fig. 10 is a schematic diagram illustrating cooperation between a light supplementing structure and a display screen in a light supplementing structure setting mode III of the augmented reality display device according to an embodiment of the utility model;

FIG. 11 is a cross-sectional view of C-C' in FIG. 10.

In the figure: 10. a display screen; 101. an outer side surface of the screen; 102. a screen front side; 11. a central display area; 12. an edge display area; 20. an optical system; 21. a semi-transparent semi-reflective plane mirror; 22. a semi-transparent semi-reflective mirror; 30. sunshade mirror; 40. a light supplementing structure; 41. a light supplementing lamp; 42. a light guide plate; 421. a first plate portion; 422. a second plate portion; 423. a light modulation unit; 43. a reflection plate; 44. a light homogenizing structure; 80. light supplementing rays; 90. and (5) human eyes.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "affixed" and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Augmented reality display devices, which require perspective, both to see the real world and to see virtual information; the pixels on the display are formed into a remote virtual image through a series of optical imaging elements and projected into human eyes, and virtual information and a real scene are integrated into a whole, mutually complemented and mutually 'enhanced' through a 'layering' mode. The augmented reality display device, such as AR glasses, AR helmets, and the like, superimposes virtual information in a real scene, so that a user can see the augmented scene, and the augmented reality technology is widely applied to the fields of games, education, medical treatment, industry, and the like, so that the user can obtain more visual experience.

Some augmented reality display devices have set up sunglasses in the place ahead of user's field of view to increase the environment contrast when the user uses the augmented reality display device to watch the shadow, avoid the user to see the virtual image of not clearly throwing to the place ahead of user's field of view when ambient light is too bright. However, after the sunshade mirror is arranged, little or no ambient light enters the field of view of the user, and the eyes of the user adapt to darker ambient light, when the display content is suddenly switched from a picture with low brightness to a picture with high brightness, the user can generate dazzling glare feeling, the eyes of the user are injured, and the user experience is reduced.

In addition, with the augmented reality display device in which the sunshade mirror is not provided, if the real environment in which the user is located is dark, little ambient light is caused to enter the user's field of view, and if the display content is suddenly switched from a low-luminance screen to a high-luminance screen, glare occurs.

In order to solve the problem that the user generates dazzling glare when using the augmented reality display device, the utility model provides an eye-protecting type augmented reality display device, which protects eyes 90 of the user by introducing light supplement around the display content, prevents sudden change of brightness entering the field of view of the user while not affecting the viewing of the user, prevents glare and protects eyes 90.

Referring to fig. 1 to 11, an augmented reality display device will be described.

The augmented reality display device comprises a display screen 10 and an optical system 20. The display screen 10 is used to display content, the display screen 10 being unable to block the front of the user's field of view, but being disposed beside the user's eyes 90. The optical system 20 is used to project the content on the display screen 10 in front of the field of view, and as shown in fig. 1 to 5, the optical system 20 includes one or more optical elements, at least one of which is disposed on the front side of the display screen 10.

It should be noted that, the optical element being disposed on the front side of the display screen 10 means that the optical element is located on the light emitting surface side of the display screen 10, and the light emitted by the display screen 10 may be directly incident on the optical element, so that the optical system 20 may project the display content located beside the user's field of view to the front of the user's field of view.

The present utility model is not limited to the type of optical system 20 of the augmented reality display device, and the optical system 20 may be, but is not limited to, prismatic, freeform, birdBath, optical waveguide, holographic lens. Fig. 1 schematically illustrates an internal structure of a BirdBath type augmented reality display device, and fig. 2 to 5 schematically illustrate a structure of the BirdBath type augmented reality display device according to the present utility model using a BirdBath type optical system 20.

The augmented reality display device comprises a light filling structure 40, the light filling structure 40 is configured to emit light filling 80 around the display content, and fill the light around the display content. The display screen 10 includes a central display area 11, the central display area 11 is used for displaying the image content to be projected, a light supplementing structure 40 is arranged at the outer side of the central display area 11, the light supplementing structure 40 is used for emitting light supplementing 80, so that the light supplementing 80 is located around the display content of the central display area 11, and the light emitting direction of the light supplementing structure 40 is the same as the light emitting direction of the central display area 11. Taking the example that the display screen 10 is arranged above the eyeball in fig. 1 as an example, the central display area 11 of the display screen 10 emits light downwards, and then the light supplementing structure 40 emits light downwards at this time; when the display screen 10 is arranged below the eyeballs, the central display area 11 of the display screen 10 emits light upwards, and then the light supplementing structure 40 emits light upwards; when the display screen 10 is disposed on the left side of the eyeball, the central display region 11 of the display screen 10 emits light to the right, and the light supplementing structure 40 emits light to the right at this time.

The light supplementing structure 40 may be an independent structure disposed outside the display screen 10, or may be a structure that directly uses a display area at an edge of the display screen 10 as the light supplementing structure 40.

Referring to fig. 2 and 3, the position and direction of the light compensating light 80 are illustrated. The display screen 10 includes a screen front side 102 and a screen outer side 101, and light of the display screen 10 is emitted forward from the screen front side 102, and at least one optical element of the optical system 20 is disposed in front of the screen front side 102. The fact that the light emitting direction of the light supplementing structure 40 is the same as the light emitting direction of the central display region 11 means that the direction of the light supplementing light 80 coincides with the normal direction of the screen front side 102.

Referring to fig. 2, the light-compensating structure 40 may be a structure disposed outside the display screen 10, where the entire display screen 10 is used for displaying image content, and the light-compensating light 80 is used for compensating light around the display screen 10. Referring to fig. 3, the display screen 10 includes a central display area 11 and an edge display area 12, the central display area 11 is used for displaying image content by using the edge display area 12 of the display screen 10 as a light supplementing structure 40, and the edge display area 12 is used for emitting high-brightness light supplementing light 80 (such as white light) to supplement light around the central display area 11.

According to the augmented reality display device, the light supplementing light 80 is led around the display content by carrying out the light supplementing on the outer side of the display screen 10 or the outer edge of the display area of the display screen 10, when a user watches videos or images by using the augmented reality display device under the condition that little or no external ambient light enters the visual field of the user, the light supplementing can be carried out to the front of the visual field through the internal light supplementing structure 40, which is equivalent to the supplementary ambient light, so that the eyes 90 have brightness adaptation, the brightness entering the visual field of the user is controlled not to suddenly change while the watching of the user is not influenced, so that the condition of glare is prevented, the eyes are protected more, the health of the eyes is facilitated, and the user experience is improved. Also, the light-compensating light 80 is not directly emitted into the eye 90 from the real environment, but is emitted from a light-compensating structure inside the augmented reality display device, and the light-compensating light 80 does not affect the viewing of virtual images of the display content.

In an embodiment, the augmented reality display device is a head mounted device, which may be, but is not limited to, AR glasses, AR helmets. In other embodiments, the augmented reality display device may also be a non-head mounted device.

Referring to fig. 4 and 5, the augmented reality display device includes a sunshade mirror 30. The sunglasses 30 may be of a removable or non-removable construction.

In the x-direction of the augmented reality display device, the optical system 20 is provided on one side of the display screen 10; the sunshade mirror 30 is at one side of the optical system 20 in the y-direction of the augmented reality display device. In other words, the sunshade lens 30 and the display screen 10 are disposed on adjacent sides of the optical system 20. In some embodiments, the display screen 10 is located on the top side of the augmented reality display device and the sunshade mirror 30 is located on the front side of the augmented reality display device. In other embodiments, the display screen 10 may also be located on the left or right side of the augmented reality display device, with the sunshade mirror 30 located on the front side of the augmented reality display device.

The augmented reality display device comprises the sunshade mirror 30 and the light supplementing structure 40, so that the situation that the contrast between the virtual image and the real environment is low and cannot be seen clearly due to the fact that the ambient light is too old can be avoided, the contrast between the virtual image and the environment during watching can be increased, a good watching effect can be achieved, the condition of dazzling glare caused by sudden increase of brightness of display content can be avoided, and eyes can be protected more. The augmented reality display device has good viewing effect and eye protection effect, and is good in use experience.

The structure of the BirdBath type augmented reality display device is illustrated in fig. 1 to 5. Referring to fig. 1 to 5, the optical system 20 includes a plurality of optical elements including a half mirror 21 and a half mirror 22; in the x-direction of the augmented reality display device, a half mirror 21 is provided on the front side of the display screen 10; in the y-direction of the augmented reality display device, a half mirror 22 is provided on one side of a half mirror 21; the half mirror 22 is concave on the side close to the half mirror 21 and convex on the side away from the half mirror 21. The virtual image imaging principle of the BirdBath type augmented reality display device is not described here in detail.

In an embodiment, the light-compensating structures 40 are disposed on four sides of the central display area 11, in other words, the light-compensating structures 40 surround the periphery of the central display area 11, so that the light-compensating light 80 can be provided around the periphery of the display content of the display screen 10, and a more uniform light-compensating effect can be obtained. In other embodiments, the light supplementing structure 40 may be disposed only on two opposite sides of the central display area 11, and the light supplementing light 80 may be provided only on two sides of the display screen 10.

Several arrangements of the light supplementing structure 40 are provided below.

Light filling structure 40 sets up mode one:

the light supplementing structure 40 specially used for supplementing light is arranged outside the display screen 10, in other words, the light supplementing structure 40 and the display screen 10 are separate components, and the whole screen of the display screen 10 is used for displaying content, so that the edge display area 12 of the display screen 10 is not required to be occupied for supplementing light, and the efficient application of the display screen 10 is ensured.

Referring to fig. 1, 6-8, a peripheral side-in type light supplementing structure 40 is adopted, and the light supplementing structure 40 includes a plurality of light supplementing lamps 41, a light guiding plate 42 and a reflecting plate 43.

At least a portion of the light guide plate 42 is disposed outside the display screen 10. The light guide plate 42 includes an adjacent plate outer side surface and plate front side surface, the light supplement lamps 41 are disposed on the outer side of the plate outer side surface, and the light supplement lamps 41 are disposed at intervals. The light guide plate 42 includes a plurality of light adjusting portions 423 disposed at intervals, and the light adjusting portions 423 are configured to adjust light incident from the outer surface of the plate to be emitted from the front surface of the plate. The light guide plate 42 may be, but is not limited to, an acryl plate, a PC plate.

The light supplement lamp 41 may be, but is not limited to, an LED lamp. The light emitted by the light supplementing lamp 41 is emitted into the light guide plate 42 from the lateral direction of the light guide plate 42, so that the light supplementing ray 80 is emitted from the front side of the light guide plate 42, and the light supplementing ray 80 enters the eyes 90 through the optical system 20 and/or other structures of the augmented reality display device, thereby achieving the effect of supplementing light around the display content; by these dimming parts 423, light coupled to the light guide plate 42 can be decoupled from the light guide plate 42, and a more uniform light supplementing effect can be provided.

Wherein, the light guide plate 42 is at least partially located outside the display screen 10 means that: the surface parallel to the front surface 102 of the display screen 10 is a first surface, the front projection area of the light guide plate 42 projected onto the first surface is a first projection area, the front projection area of the display screen 10 projected onto the first surface is a second projection area, and at least a part of the first projection area is located outside the second projection area.

Referring to fig. 6 to 8, in an embodiment, the light guide plate 42 is disposed at a front side or a rear side of the display screen 10, the light guide plate 42 includes a first plate portion 421 and a second plate portion 422 connected to each other, the second plate portion 422 is located outside the first plate portion 421, the display screen 10 is disposed on the first plate portion 421, and the second plate portion 422 is located outside the display screen 10.

The light adjusting portion 423 is provided in the second plate portion 422, and the light adjusting portion 423 is not provided in the first plate portion 421. The light compensating lamp 41 is side-in type, and the light compensating beam 80 of the light compensating lamp 41 is incident on the light guiding plate 42 from the side of the light guiding plate 42, and the light is not transmitted from the front side surface of the first plate portion 421 where the light adjusting portion 423 is not provided, in other words, the light is not totally reflected in the first plate portion 421 of the light guiding plate 42 and is not emitted from the first plate portion 421 when viewed from the outside. The outer ring of the light guide plate 42 is provided with the dimming part 423, so that the angle adjustment of the light supplementing light 80 can be realized, and the requirement of forward emitting the light supplementing light 80 is met. Since the light supplementing ray 80 is not emitted at the position of the first plate 421, the first plate 421 does not affect the normal display of the display 10 when the light guide plate 42 is disposed at the front side or the rear side of the display 10.

The display screen 10 may be fixed to the first plate 421 by means of fixing such as OCA optical adhesive or vacuum suction, and the first plate 421 also has the function of supporting the display screen 10.

In other embodiments, the annular light guide plate 42, the L-shaped light guide plate 42, etc. may be used to be clamped outside the display screen 10, and the light guide plate 42 is connected to the side of the display screen 10.

Referring to fig. 8, the light adjusting portion 423 is a concave hole provided in the light guiding plate 42, and the concave hole may also be referred to as a mesh, and the light guiding plate 42 has a hole opening of the concave hole formed in a front surface of the plate. Wherein the concave holes may be, but are not limited to, V-shaped holes. In fig. 8, light in the light guide plate 42 is emitted to the right in the drawing at the concave hole position. In other embodiments, the light adjusting portion 423 may be particles provided in the second plate portion 422 and capable of changing the refractive index of the light, or the light adjusting portion 423 may be a protrusion or the like, as long as the light entering from the side at the position of the second plate portion 422 is adjusted to be emitted from the front side of the second plate portion 422.

The augmented reality display device of the present utility model can obtain different uniformity and light output angles of the light supplement based on different configurations of the concave holes and the light supplement lamp 41, thereby having appropriate brightness in the visual field of the eyes 90, preventing glare and protecting the eyes 90. In the specific implementation process, the light emitting angle and the brightness uniformity of the light supplementing area can be adjusted by adjusting the shape, the distribution and the density design of the concave holes. Illustratively, by adjusting the concave aperture sidewall slope design, the light exit area as well as the light exit intensity of a single concave aperture may be adjusted. Referring to fig. 7, the light-filling lamps 41 are disposed at intervals between the outer side surfaces of the light-guiding plate 42, and a uniform light distance d1 is formed between the light-filling lamps 41 and the outer side surfaces of the light-guiding plate 42, so that the light emitted from the light-filling lamps 41 is diffused to a certain extent and then is incident into the light-guiding plate 42, and the light emitted from the light-emitting surface of the light-guiding plate 42 is more uniform. In a specific implementation process, the number of the light compensating lamps 41 and the uniform light interval can be adjusted to make the light emitted by the light compensating lamps 41 more uniform. In a specific implementation, the type of light supplement may be controlled by setting the light supplement lamp 41 to emit a broad spectrum of light.

Referring to fig. 6, the second plate portion 422 is provided with a dimming portion 423, and four sides of the first plate portion 421 are respectively provided with the second plate portion 422, in other words, the four sides of the first plate portion 421 can be used for emitting the light-compensating light 80 outwards, so as to emit the light-compensating light 80 outwards around the display screen 10, and provide a uniform light-compensating effect. With continued reference to fig. 6, two sets of light compensating assemblies are disposed on opposite sides of the light guide plate 42, each set of light compensating assemblies includes at least two light compensating lamps 41 disposed at intervals. The light guide plate 42 is utilized to couple the incident light, the four side edges of the light guide edge are provided with the characteristics of the light adjusting part 423 for light decoupling, and the light supplementing lamps 41 are only arranged on two sides of the light guide plate 42, so that the structure is relatively simple, and meanwhile, a good light supplementing effect can be achieved. Of course, in other embodiments, the light supplement lamps 41 may be provided on all four sides of the light guide plate 42.

Referring to fig. 6 and 7, in order to improve the light supplementing efficiency and the light supplementing effect, the light supplementing structure 40 includes a reflective plate 43, the reflective plate 43 is connected with the light guide plate 42, and a mounting groove is defined between an inner wall of the reflective plate 43 and an outer side surface of the light guide plate 42; the light supplement lamp 41 is provided in the installation groove. The light emitted from the light compensating lamp 41 may be reflected by the inner wall of the reflective plate 43 into the light guide plate 42 to improve the light utilization rate, in other words, the angle of the light emitted from the light compensating lamp 41 is controlled by the reflective plate 43 and coupled to the light guide plate 42. As shown in fig. 7, the reflection plate 43 is wrapped around the outside of the light supplement lamp 41.

As shown in fig. 6 and 7, the reflector 43 is provided at a position corresponding to the position where the light supplement lamp 41 is provided. When the light supplement lamps 41 are provided at opposite sides of the light guide plate 42, the reflection plates 43 are provided at opposite sides of the light guide plate 42, respectively.

With continued reference to fig. 7, the reflective plate 43 is a U-shaped plate, and both ends of the reflective plate 43 are connected to the light guide plate 42. The U-shaped plate is adopted as the reflecting plate 43, so that the reflecting plate 43 can conveniently wrap the light supplementing lamp 41, and the fixing installation of the reflecting plate 43 and the light guide plate 42 can also be conveniently and rapidly realized.

In other embodiments, the reflecting plate 43 may be a V-shaped plate or the like.

In other embodiments, the light supplementing structure 40 may include only the light supplementing lamps 41 and the light guiding plate 42, and the reflective plate 43 is not provided.

The first light supplementing structure 40 is arranged in a first mode, and by combining the side-in type light emitting and guiding technology with the augmented reality display technology, light supplementing is introduced while the augmented reality display content is ensured, so that the brightness of eyes 90 is kept in a stable range, glare is reduced, and an eye protection effect is achieved.

And the light supplementing structure 40 is arranged in a second mode:

the light filling is performed by sacrificing a portion of the display area of the display screen 10, and the portion of the display area of the display screen 10 is used as the light filling structure 40.

Referring to fig. 9, the display screen 10 includes an edge display area 12, and the edge display area 12 is located outside the center display area 11; the light supplementing structure 40 is the edge display region 12. The central display area 11 is used for normally displaying images; the edge display area 12 does not display, but can adjust light according to the display content, thereby achieving the effect of light compensation.

The light supplementing structure 40 is arranged in a third mode:

the light supplementing structure 40 specially used for supplementing light is arranged outside the display screen 10, in other words, the light supplementing structure 40 and the display screen 10 are separate components, and the whole screen of the display screen 10 is used for displaying content, so that the edge display area 12 of the display screen 10 is not required to be occupied for supplementing light, and the efficient application of the display screen 10 is ensured.

Referring to fig. 10 and 11, a peripheral direct type light supplementing structure 40 is adopted, and the light supplementing structure 40 includes a light supplementing lamp 41 and a light homogenizing structure 44. The light homogenizing structure 44 is arranged on the outer side of the display screen 10 in the width direction and/or the length direction, and the light homogenizing structure 44 is connected with the display screen 10; the light supplement lamp 41 is provided at the rear side of the dodging structure 44.

The light supplement lamp 41 may be, but is not limited to, an LED lamp bead. The light homogenizing structure 44 may be, but is not limited to, a light homogenizing film and a diffusion sheet.

The light emitted by the light supplementing lamp 41 is evenly lighted through the even lighting structure 44, so that the influence of lamp shadows is eliminated, and glare caused by excessive brightness of the light supplementing lamp 41 is prevented. Referring to fig. 11, the light filling lamps 41 and the light homogenizing structures 44 are disposed at intervals, so that a light homogenizing distance d2 is formed between the light filling lamps 41 and the light homogenizing structures 44, so that the light emitted from the light filling lamps 41 is prevented from being concentrated in the light homogenizing structures 44, and the light emitted from the light filling lamps 41 is diffused to a certain extent and then is emitted into the light homogenizing structures 44, and the light emitted from the light emitting surfaces of the light homogenizing structures 44 is more uniform.

In other embodiments, the number of light filling lamps 41 may be increased to reduce the light homogenization gap, thereby reducing the volume of the light filling structure 40.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning. In the description of the present specification, reference to the description of the terms "one embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims (11)

1. An augmented reality display device, comprising:

a display screen (10) comprising a central display area (11);

an optical system (20) provided laterally to the display screen (10);

the outside of the central display area (11) is provided with a light supplementing structure (40), and the light supplementing structure (40) is used for emitting light supplementing rays (80); the light emitting direction of the light supplementing structure (40) is the same as the light emitting direction of the central display area (11).

2. The augmented reality display device according to claim 1, characterized by comprising a sunshade mirror (30);

the optical system (20) is arranged on one side of the display screen (10) in the x direction of the augmented reality display device; in the y-direction of the augmented reality display device, the sunshade mirror (30) is on one side of the optical system (20).

3. The augmented reality display device according to claim 1, characterized in that the light filling structure (40) is arranged on four sides of the central display zone (11) or that the light filling structure (40) is arranged on opposite sides of the central display zone (11).

4. An augmented reality display device according to any one of claims 1-3, characterized in that the light supplementing structure (40) comprises a light supplementing lamp (41) and a light guiding plate (42);

at least one part of the light guide plate (42) is arranged outside the display screen (10); the light guide plate (42) comprises an adjacent plate outer side face and an adjacent plate front side face, and the light supplementing lamp (41) is arranged beside the plate outer side face; the light guide plate (42) comprises a dimming part (423), and the dimming part (423) is used for adjusting the light rays entering the light guide plate (42) from the outer side surface of the plate to be emitted from the front side surface of the plate.

5. The augmented reality display device according to claim 4, characterized in that the light guide plate (42) comprises a first plate portion (421) and a second plate portion (422) connected; the display screen (10) is mounted on the first plate portion (421), the second plate portion (422) is located on the outer side of the display screen (10), and the dimming portion (423) is arranged on the second plate portion (422).

6. The augmented reality display device according to claim 5, wherein the second plate portions (422) are provided on four sides of the first plate portion (421), respectively; the light supplementing lamps (41) are arranged on two opposite sides of the light guide plate (42).

7. The augmented reality display device according to claim 4, wherein the dimming part (423) is a concave hole provided in the light guide plate (42), the light guide plate (42) forming an aperture of the concave hole at a front side of the plate.

8. The augmented reality display device according to claim 4, wherein the light supplementing structure (40) comprises a reflecting plate (43), the reflecting plate (43) is connected with the light guide plate (42), and a mounting groove is defined between an inner wall of the reflecting plate (43) and a plate outer side surface of the light guide plate (42); the light supplementing lamp (41) is arranged in the mounting groove.

9. The augmented reality display device according to claim 8, wherein the reflection plate (43) is a U-shaped plate, and both ends of the reflection plate (43) are connected to the light guide plate (42).

10. An augmented reality display device according to any one of claims 1-3, characterized in that the display screen (10) comprises an edge display region (12), the edge display region (12) being located outside the central display region (11); the light supplementing structure (40) is the edge display area (12).

11. An augmented reality display device according to any one of claims 1-3, characterized in that the light filling structure (40) comprises a light filling lamp (41) and a light homogenizing structure (44), the light homogenizing structure (44) being arranged outside the display screen (10) in the width direction and/or in the length direction, the light homogenizing structure (44) being connected to the display screen (10); the light supplementing lamp (41) is arranged at the rear side of the light homogenizing structure (44).