Eye-protection augmented reality display device and eye-protection augmented reality display method

Abstract

The invention discloses an eye protection augmented reality display device and method, the display device comprises a display panel, a light path assembly used for transmitting the display content of the display panel to the eyes of a user and a liquid crystal display screen, and the liquid crystal display screen is arranged on the side, away from the eyes, of the display panel and the light path assembly; the liquid crystal display screen has a first light-transmitting state and a second light-transmitting state, the liquid crystal display screen is in a transparent state in the first light-transmitting state so that external ambient light can penetrate through the liquid crystal display screen to supplement light to the light path assembly, and the liquid crystal display screen is in a transparent state in the second light-transmitting state so that external ambient light can penetrate through the liquid crystal display screen to supplement light to the light path assembly. The area except the overlapped part of the liquid crystal display screen and the light path assembly is in a transparent state, so that external ambient light can penetrate through the area except the overlapped part of the liquid crystal display screen and the light path assembly to be acquired by human eyes.

Description

Technical Field

[0001] The present application relates to the field of electronic display devices, and in particular to an eye-protection augmented reality display device and an eye-protection enhanced display method. Background Art

[0002] With the rapid development of Internet technology and smart electronic products, online teaching has been used more and more widely. While traditional electronic products used for online teaching, such as tutoring machines and learning tablets, provide convenience for online teaching, their use can also have many negative effects. In particular, myopia problems caused by long-term use of video electronic products can cause great trouble to students and parents. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide an eye-protection augmented reality display device and an eye-protection enhanced display method, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, an eye-protection augmented reality display device is provided, comprising a display panel, an optical path component for transmitting the display content of the display panel to the user's eyes, and a liquid crystal display screen, wherein the liquid crystal display screen is arranged on a side of the display panel and the optical path component away from the human eye; the liquid crystal display screen has a first light-transmitting state and a second light-transmitting state, in the first light-transmitting state, the liquid crystal display screen is in a transparent state, so that external ambient light can pass through the liquid crystal display screen to supplement the optical path component with light, and in the second light-transmitting state, the area other than the overlapping part of the liquid crystal display screen and the optical path component is in a transparent state, so that external ambient light can pass through the area other than the overlapping part of the liquid crystal display screen and the optical path component and be acquired by the human eye.

[0006] Optionally, the optical path component includes a first reflector and a second reflector, the first reflector is configured to reflect the light emitted by the display panel to the second reflector, and the second reflector is configured to reflect the light reflected by the first reflector to the human eye.

[0007] Optionally, the first reflector is a semi-transparent and semi-reflective plane mirror, the second reflector is a semi-transparent and semi-reflective concave mirror, and the first reflector is arranged between the second reflector and the human eye.

[0008] Optionally, the first reflector is a semi-transparent and semi-reflective plane mirror, the second reflector is a reflective concave mirror, and the first reflector is arranged between the second reflector and the human eye.

[0009] Optionally, the optical path component includes a semi-transparent and semi-reflective plane mirror and a semi-transparent and semi-reflective concave mirror, the semi-transparent and semi-reflective concave mirror is arranged perpendicular to the display panel, and the semi-transparent and semi-reflective plane mirror is arranged at an angle of 45° to the display panel.

[0010] Optionally, the liquid crystal display screen further has a fill light state, in which the area other than the overlapping portion of the liquid crystal display screen and the optical path component is in a luminous state, so as to provide fill light for the optical path component through the liquid crystal display screen.

[0011] Optionally, the liquid crystal display screen also has a light-shielding state, in which the liquid crystal display screen is in a completely closed state, so that external ambient light cannot pass through the liquid crystal display screen and affect the light intensity of the optical path component.

[0012] Optionally, an ambient light detection device is further included. The ambient light detection device is arranged on a side of the liquid crystal display screen away from the optical path component and is used to detect the intensity of ambient light to provide a basis for controlling the working state of the liquid crystal display screen.

[0013] Optionally, a display light detection device is also included. The display light detection device is arranged between the display panel and the optical path component, and is used to detect the light intensity of the picture displayed by the display panel in real time to provide a basis for controlling the working state of the liquid crystal display screen.

[0014] Optionally, a protective shell is further included, wherein the protective shell is at least partially made of a transparent material, and the display panel, the optical path component and the liquid crystal display screen are all located inside the protective shell.

[0015] On the other hand, an eye protection enhanced display method is provided, which adopts the eye protection augmented reality display device as described above, and selectively fills the light path component of the eye protection augmented reality display device by controlling the light transmission area and light transmission state of the liquid crystal display screen.

[0016] Optionally, the light-transmitting area and light-transmitting state of the liquid crystal display are controlled according to the intensity of external ambient light.

[0017] Optionally, the light-transmitting area and light-transmitting state of the liquid crystal display screen are adjusted according to the brightness of the display image of the display panel.

[0018] The beneficial effects of the present application are as follows: in the present solution, the intensity and area of ​​the ambient light entering the optical path component are adjusted so that the brightness of the ambient light matches the displayed content, so that the brightness of the ambient light entering the human eye is adapted to the brightness of the displayed content, thereby protecting the human eye;

[0019] By utilizing the selective light transmittance of the liquid crystal display, the state of light transmittance in the entire area or in part of the area can be adjusted, which is convenient for switching between different light transmittance requirements, making the structure for realizing this function simpler and easier to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described in detail below based on the drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the structure of a hyperopia light screen display device;

[0022] Figure 2 It is a schematic diagram of the structure of an augmented reality display device;

[0023] Figure 3 This is a schematic diagram of the overall structure of the eye protection augmented reality display device in this application;

[0024] In the figure:

[0025] 1. Display panel; 2. Semi-transparent and semi-reflective mirror; 3. Reflective concave mirror; 4. Shielding shell; 5. Human eye;

[0026] 11. Display panel; 12. Semi-transparent and semi-reflective plane mirror; 13. Semi-transparent and semi-reflective concave mirror; 14. Human eye;

[0027] 111. display panel; 112. first reflector; 113. second reflector; 114. liquid crystal display; 115. protective case; 116. human eye. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] With the rapid development of Internet technology and smart electronic products, online teaching has been used more and more widely. While traditional electronic products used for online teaching, such as tutoring machines and learning tablets, provide convenience for online teaching, their use can also have many negative effects. In particular, myopia problems caused by long-term use of video electronic products can cause great trouble to students and parents.

[0033] In view of the above problems, the prior art provides a variety of display solutions that can prevent myopia. Among them, the hyperopia light screen with advanced imaging and myopia defocus as the main myopia intervention method has become the main display method for preventing myopia. Figure 1 The structure diagram of a hyperopia light screen display device is shown in the figure, which includes a display panel 1, a semi-transparent and semi-reflective mirror 2, a reflective concave mirror 3, and a shielding shell 4. The working principle is that the light emitted by the display panel is emitted to the reflective concave mirror through the semi-transparent and semi-reflective plane mirror, and the reflected light is emitted through the semi-transparent and semi-reflective plane mirror and enters the human eye 5 to form an image. By adjusting the distance between the display panel, the semi-transparent and semi-reflective plane mirror and the concave mirror, a virtual image magnified in the distance can be formed. When the human eye observes at a specified distance, the virtual image can produce advanced imaging and myopia defocus after entering the human eye, thereby intervening in the development of myopia.

[0034] Because the hyperopia light screen display device is to isolate the external ambient light interference, the shielding shell 4 is added to improve the display effect. This also brings some problems. When watching through the hyperopia light screen, due to the existence of the shielding shell 4, the content being watched is displayed in a dark environment. When the brightness of the displayed content becomes high, it will produce strong glare to the eyes in a dark environment, causing strong discomfort to the eyes, and has no eye protection effect.

[0035] Figure 2 A schematic diagram of the structure of an augmented reality display device is shown in the figure, which includes a display panel 11, a semi-transparent and semi-reflective plane mirror 12 and a semi-transparent and semi-reflective concave mirror 13. The working principle of the augmented reality display device is similar to that of the hyperopia light screen. The light emitted by the display panel 11 is reflected by the semi-transparent and semi-reflective plane mirror 12, reaches the semi-transparent and semi-reflective concave mirror 13 and is further reflected, passes through the semi-transparent and semi-reflective plane mirror 12 and reaches the human eye 14. The main difference is that a semi-transparent and semi-reflective concave mirror 13 is used in the augmented reality device, and there is no shielding shell. Because there is no shielding shell, the external ambient light can directly reach the human eye through the semi-transparent and semi-reflective concave mirror 13 and the semi-transparent and semi-reflective plane mirror 12. Therefore, the augmented reality display device can simultaneously view the display content of the display panel 11 and the external environment.

[0036] Although the ambient light from a distance can enter the human eye under the augmented reality display device, improving the eye protection effect, in some cases, the display content of the augmented reality display device will be affected. For example, when watching in a bright indoor environment, because the indoor ambient light is strong, the contrast of the display content of the augmented reality display device decreases, making the image unclear and unable to be viewed normally.

[0037] Based on the above-mentioned defects of the hyperopia light screen and the augmented reality display device, the present application provides an eye protection augmented reality display device, referring to Figure 3 -*As shown, it includes a display panel, an optical path component for transmitting the display content of the display panel to the user's eyes, and a liquid crystal display screen, wherein the liquid crystal display screen is arranged on a side of the display panel and the optical path component away from the human eye; the liquid crystal display screen has a first light-transmitting state and a second light-transmitting state. In the first light-transmitting state, the liquid crystal display screen is transparent so that external ambient light can pass through the liquid crystal display screen to supplement the optical path component. In the second light-transmitting state, the area other than the overlapping part of the liquid crystal display screen and the optical path component is transparent so that external ambient light can pass through this area of ​​the liquid crystal display screen and be acquired by the human eye.

[0038] In this solution, the intensity and area of ​​ambient light entering the optical path component are adjusted so that the intensity of ambient light entering the display device can be adjusted, and while introducing ambient light, excessive ambient light is prevented from affecting the display. At the same time, the brightness can be matched with the display content, so that the brightness of ambient light entering the human eye is adapted to the brightness of the display content, thereby protecting the human eye.

[0039] By utilizing the selective light transmittance of the liquid crystal display, the state of light transmittance in the entire area or in part of the area can be adjusted, which is convenient for switching between different light transmittance requirements, making the structure for realizing this function simpler and easier to control.

[0040] Among them. Liquid crystal display is a display technology widely used in electronic devices. It uses liquid crystal molecules to control the propagation mode of light, so that the screen can switch between light-transmitting and light-impermeable to present images and information. The light-transmitting property of the liquid crystal display is achieved by controlling the direction of the liquid crystal molecules. Liquid crystal molecules are molecules with a certain orientation, and their arrangement can be changed by an electric field, thereby affecting the propagation of light. Liquid crystal displays are usually composed of a liquid crystal layer, a backlight source, and other auxiliary components. In the operation of the liquid crystal display, when an electric field is applied to the liquid crystal molecules, they rearrange and change the direction of light propagation. This allows light to pass through the liquid crystal molecules, thereby achieving a light-transmitting state. When the electric field disappears, the liquid crystal molecules return to their original arrangement, the light is blocked, and the display becomes opaque.

[0041] The light transmittance of an LCD screen usually refers to the ability to see the surrounding scenery behind the screen when the screen is not displaying content. In this state, the LCD screen acts as a transparent or translucent window, allowing the environment behind to be displayed through the screen.

[0042] When the LCD screen does not display any image or content, if the backlight is turned on, the backlight can penetrate the arrangement of liquid crystal molecules, and you can see the surrounding landscape behind the screen, just like through glass. In this state, the light transmittance of the LCD screen is similar to that of a transparent window.

[0043] When the LCD screen displays content, the liquid crystal molecules are activated and their arrangement is adjusted to control the propagation of light, thereby presenting the desired image or information. In this case, the surrounding landscape behind is blocked and cannot be seen through the display.

[0044] Therefore, the light transmittance of the LCD screen is related to whether the content is displayed and the state of the backlight. When there is no content displayed, you may see the environment behind the screen. At this time, the ambient light can enter the eye-protection augmented reality display device through the LCD screen. When the content is displayed, the screen will block the scenery behind it, and the external ambient light cannot enter the eye-protection augmented reality display device through the LCD screen. This application is based on this characteristic of the LCD screen to achieve ambient light adjustment.

[0045] Specifically, when the eye-protection augmented reality display device in the present application is used in a room with low ambient light brightness, the liquid crystal display screen can be adjusted to a first light-transmitting state. In this state, the entire liquid crystal display screen is transparent, and external ambient light can pass through the liquid crystal display screen into the eye-protection augmented reality display device to achieve full fill light. At this time, on the one hand, the glare of the hyperopia screen in a dark environment can be avoided, and on the other hand, ambient light fill light can be introduced to achieve the effect of eye protection.

[0046] When the eye-protection augmented reality display device in the present application is used in an outdoor environment with high ambient light brightness, the liquid crystal display screen can be adjusted to a second light-transmitting state. In this state, the liquid crystal display screen is transparent only in the area other than the overlapping part with the optical path component, so that external ambient light can pass through the area other than the overlapping part with the liquid crystal display screen and the optical path component and be acquired by the human eye, while the part overlapping with the optical path component is not light-transmitting. At this time, the introduction of ambient light for fill-in light is achieved while avoiding the interference of ambient light on the displayed content, thereby improving the clarity of the displayed content and ensuring that the displayed content plays a role in advanced imaging and myopia defocus intervention in the development of myopia.

[0047] For details, please refer to Figure 3 As shown, in an optional embodiment of the present application, the optical path component includes a first reflector 112 and a second reflector 113, the first reflector 112 is configured to reflect the light emitted by the display panel 111 to the second reflector 113, and the second reflector 113 is configured to reflect the light reflected by the first reflector 112 to the human eye 116.

[0048] During the operation of the eye-protection augmented reality display device described in the present application, the display panel 111 displays the picture, and the light is first transmitted to the first reflector 112. After being reflected on the first reflector 112, the light is irradiated on the second reflector 113, and then reflected by the second reflector 113, and finally enters the human eye 116 to form an image. By adjusting the distance between the display panel 111, the first reflector 112 and the second reflector 113, an enlarged virtual image can be formed. The human eye 116 observes at a specified distance. After the virtual image enters the human eye 116, the effect of advanced imaging and myopia defocus can be produced, thereby intervening in the development of myopia.

[0049] Specifically, in an optional embodiment of the present application, the first reflector 112 is a semi-transparent and semi-reflective plane mirror, the second reflector 113 is a semi-transparent and semi-reflective concave mirror, and the first reflector 112 is arranged between the second reflector 113 and the human eye 116.

[0050] By setting the first reflector 112 as a semi-transparent and semi-reflective plane mirror, the light reflected by the second reflector 113 can pass through the first reflector 112 and enter the human eye 116, thereby saving space and making the display device more compact; the second reflector 113 is set as a semi-transparent and semi-reflective concave mirror, so that in the first light-transmitting state, ambient light can pass through the second reflector 113 and the first reflector 112 and enter the human eye 116.

[0051] It should be pointed out that the above-mentioned second reflector 113 being a semi-transparent and semi-reflective concave mirror is not a limitation of the present application. In another optional embodiment of the present application, the first reflector 112 is a semi-transparent and semi-reflective plane mirror, the second reflector 113 is a reflective concave mirror, and the first reflector 112 is arranged between the second reflector 113 and the human eye 116.

[0052] Furthermore, in the eye-protection augmented reality display device described in this embodiment, the optical path component includes a semi-transparent and semi-reflective plane mirror and a semi-transparent and semi-reflective concave mirror, the semi-transparent and semi-reflective concave mirror is vertically arranged to the display panel 111, and the semi-transparent and semi-reflective plane mirror is arranged at an angle of 45° to the display panel 111.

[0053] It is understandable that the angle between the semi-transparent and semi-reflective plane mirror and the display panel 111 is not limited to 45°. In other embodiments of the present application, it can also be any angle between 30° and 60°, depending on the actual product optical path structure design requirements.

[0054] Based on the above description, the present application has provided two working states of the liquid crystal display screen 114. In other embodiments, the liquid crystal display screen 114 may have other working states in more application scenarios. For example, in the eye protection augmented reality display device disclosed in another optional embodiment of the present application, the liquid crystal display screen 114 also has a fill light state. In the fill light state, the area other than the overlapping part of the liquid crystal display screen 114 and the optical path component is in a luminous state, so as to fill light for the optical path component through the liquid crystal display screen 114. This state is suitable for night environments, and when the ambient light is very dark both indoors and outdoors, if fill light is not performed at this time, the intensity of the ambient light cannot achieve the fill light effect regardless of whether the liquid crystal display is in the first light transmission state or the second light transmission state. Therefore, by actively generating light through the liquid crystal display for fill light, glare in a dark environment can be avoided, thereby achieving an eye protection effect.

[0055] Optionally, in another embodiment of the present application, the LCD screen 114 also has a shading state. In the shading state, the LCD screen 114 is in a completely closed state so that the external ambient light cannot pass through the LCD screen 114 and affect the light intensity of the optical path component. This state is suitable for the situation where the external ambient light is strong and the picture displayed by the display panel 111 is darker, which can avoid the ambient light being too strong and affecting the viewing of the picture.

[0056] Furthermore, the eye protection augmented reality display device described in this embodiment also includes an ambient light detection device, which is arranged on a side of the liquid crystal display screen 114 away from the optical path component, and is used to detect the ambient light intensity to provide a basis for controlling the working state of the liquid crystal display screen 114. During the operation of the eye protection augmented reality display device, the ambient light intensity detection device detects the ambient light intensity in real time, and determines which working state the liquid crystal display screen 114 needs to enter according to the intensity of the ambient light.

[0057] Furthermore, in another optional embodiment of the present application, the eye protection augmented reality display device further includes a display light detection device, which is disposed between the display panel 111 and the optical path component, and is used to detect the light intensity of the display screen of the display panel 111 in real time, so as to provide a basis for controlling the working state of the liquid crystal display screen 114. For example, when the display screen of the display panel 111 has a high brightness, the liquid crystal display screen 114 can be controlled to open a larger range, so that more ambient light can enter, thereby better matching the ambient light with the brightness of the display screen of the display panel 111.

[0058] It is understandable that in another optional embodiment of the present application, the ambient light detection device and the display light detection device are set at the same time, that is, the external ambient light and the brightness of the picture displayed by the display panel 111 can be detected simultaneously, and the working state of the liquid crystal display screen 114 can be controlled by combining the two.

[0059] In another optional embodiment of the present application, the eye protection augmented reality display device further includes a protective shell 115, the protective shell 115 is at least partially made of transparent material, and the display panel 111, the optical path component and the liquid crystal display screen 114 are all located inside the protective shell 115. It should be pointed out that the part of the protective shell 115 made of transparent material must meet the light transmission function of the liquid crystal display screen 114 and the observation requirements of the real scene, that is, the protective shell 115 plays a role in protecting the internal components, but does not form light shielding inside, so as to ensure the normal function of the virtual augmented reality display device.

[0060] At the same time, an embodiment of the present application also provides an eye protection enhanced display method, which adopts the eye protection augmented reality display device as described above, and selectively fills the light path components of the eye protection augmented reality display device by controlling the light transmittance area and light transmittance state of the liquid crystal display screen.

[0061] In an optional embodiment of the present application, the light-transmitting area and light-transmitting state of the liquid crystal display screen are controlled according to the intensity of the external ambient light.

[0062] Specifically, in this embodiment, during the operation of the eye-protection augmented reality display device, the external ambient light intensity is detected by a light intensity detection device, and the detection result is compared with a preset value. When the detected real-time ambient light intensity is greater than the preset light intensity value, the liquid crystal display is controlled to enter the second light-transmitting state; when the detected real-time ambient light intensity is less than the preset light intensity value, the liquid crystal display is controlled to enter the first light-transmitting state.

[0063] It can be understood that the light intensity detection described in the embodiments of the present application and the specific scheme of controlling the liquid crystal display screen through the light intensity signal obtained by the detection are conventional technical means of those skilled in the art and are not specifically limited in the present application. Those skilled in the art can adopt appropriate specific implementation methods according to actual needs.

[0064] In another optional embodiment of the present application, the light-transmitting area and light-transmitting state of the liquid crystal display screen are controlled according to the brightness of the display image of the display panel.

[0065] Furthermore, in another optional embodiment of the present application, the light-transmitting area and light-transmitting state of the liquid crystal display screen are controlled according to the comprehensive data of the intensity of the external ambient light and the brightness of the display screen.

[0066] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0067] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0068] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. An eye protection augmented reality display device, characterized in that: The invention comprises a display panel (111), an optical path component for transmitting the display content of the display panel (111) to the eyes of a user, and a liquid crystal display screen (114); the liquid crystal display screen (114) is arranged on a side of the display panel (111) and the optical path component away from a human eye (116); the liquid crystal display screen (114) has a first light-transmitting state and a second light-transmitting state; in the first light-transmitting state, the liquid crystal display screen (114) is in a transparent state so that external ambient light can pass through the liquid crystal display screen (114) to supplement the optical path component; in the second light-transmitting state, the area other than the overlapping part of the liquid crystal display screen (114) and the optical path component is in a transparent state so that external ambient light can pass through the area other than the overlapping part of the liquid crystal display screen (114) and the optical path component to be acquired by the human eye (116).

2. The eye protection augmented reality display device according to claim 1, characterized in that: The optical path component comprises a first reflector (112) and a second reflector (113), wherein the first reflector (112) is configured to reflect light emitted by the display panel (111) to the second reflector (113), and the second reflector (113) is configured to reflect light reflected by the first reflector (112) to a human eye (116).

3. The eye protection augmented reality display device according to claim 2, characterized in that: The first reflector (112) is a semi-transparent and semi-reflective plane mirror, the second reflector (113) is a semi-transparent and semi-reflective concave mirror, and the first reflector (112) is arranged between the second reflector (113) and the human eye (116).

4. The eye protection augmented reality display device according to claim 2, characterized in that: The first reflector (112) is a semi-transparent and semi-reflective plane mirror, the second reflector (113) is a reflective concave mirror, and the first reflector (112) is arranged between the second reflector (113) and the human eye (116).

5. The eye protection augmented reality display device according to claim 3 or 4, characterized in that: The optical path component comprises a semi-transparent semi-reflective plane mirror and a semi-transparent semi-reflective concave mirror, the semi-transparent semi-reflective concave mirror is arranged perpendicular to the display panel (111), and the semi-transparent semi-reflective plane mirror and the display panel (111) are arranged at an angle of 45 degrees.

6. The eye protection augmented reality display device according to claim 5, characterized in that: The liquid crystal display screen (114) also has a fill light state, in which the area other than the overlapping portion of the liquid crystal display screen (114) and the optical path component is in a luminous state, so as to provide fill light for the optical path component through the liquid crystal display screen (114).

7. The eye protection augmented reality display device according to claim 5, characterized in that: The liquid crystal display screen (114) also has a light-shielding state. In the light-shielding state, the liquid crystal display screen (114) is in a completely closed state so that external ambient light cannot pass through the liquid crystal display screen (114) and affect the light intensity of the optical path component.

8. The eye protection augmented reality display device according to claim 1, characterized in that: It also comprises an ambient light detection device, which is arranged on a side of the liquid crystal display screen (114) away from the optical path component and is used to detect the intensity of ambient light to provide a basis for controlling the working state of the liquid crystal display screen (114).

9. The eye protection augmented reality display device according to claim 1, characterized in that: It also comprises a display light detection device, which is arranged between the display panel (111) and the optical path component and is used to detect the light intensity of the picture displayed by the display panel (111) in real time, so as to provide a basis for controlling the working state of the liquid crystal display screen (114).

10. The eye protection augmented reality display device according to claim 1, characterized in that: It also comprises a protective shell (115), wherein the protective shell (115) is at least partially made of a transparent material, and the display panel (111), the optical path component and the liquid crystal display screen (114) are all located inside the protective shell (115).

11. An eye protection enhanced display method, characterized in that: The eye protection augmented reality display device according to any one of claims 1 to 10 is used to selectively fill light to the optical path component of the eye protection augmented reality display device by controlling the light transmission area and light transmission state of the liquid crystal display screen (114).

12. The eye protection enhanced display method according to claim 11, characterized in that: The light-transmitting area and light-transmitting state of the liquid crystal display screen (114) are controlled according to the intensity of external ambient light.

13. The eye protection enhanced display method according to claim 11 or 12, characterized in that: The light-transmitting area and light-transmitting state of the liquid crystal display screen (114) are adjusted according to the brightness of the display screen of the display panel (111).

Images