Far field screen and electronic product

Abstract

The application discloses a far image screen and an electronic product with the same, wherein the far image screen comprises a display screen, a semi-transparent and semi-reflective layer and a concave reflecting layer, the concave reflecting layer is provided with a light supplementing device for supplementing light for the semi-transparent and semi-reflective layer, the light supplementing device comprises a light supplementing light source and a focal length adjusting device, and the focal length adjusting device is used for controlling the focal length of the light supplementing light source to be consistent with the focal length of the concave reflecting layer. In the scheme, the light supplementing device is arranged in the far image screen, the semi-transparent and semi-reflective layer can be supplemented with light, and there is no completely black area, thereby avoiding the occurrence of myopia caused by the phenomenon similar to visual deprivation during the use of the far image screen. Meanwhile, the light supplementing device further comprises the focal length adjusting device, the light emitted by the light supplementing light source can be adjusted, the focal length is the same as the focal length of the picture reflected directly through the concave reflecting layer, and the comfort of the human eye when watching the far image screen is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, in particular to a far-view screen and electronic products with the same. BACKGROUND

[0002] At present, myopia is one of the eye diseases with the highest prevalence rate. Studies have shown that the increase in the incidence of myopia is closely related to long-time close-range viewing of electronic products. The far-view screen is proposed to solve the problem of close-range viewing. The far-view screen uses the principle of concave reflection imaging to form a virtual image that is upright and enlarged, and the image distance can be adjusted by designing the curvature and structure position of the concave screen. When using the far-view screen, the picture displayed on the screen is enlarged and zoomed out. Therefore, although the far-view screen is relatively close to the human eye, the image seen by the human eye is relatively far, usually several meters away, so the purpose of improving close-range viewing can be achieved.

[0003] The traditional far-view screen structure has a problem that the viewed picture changes with the viewing distance. For example, when the distance between the human eye and the far-view screen increases, the viewed picture only occupies a small part of the field of view, and the other positions in the field of view are black, forming a phenomenon similar to visual deprivation, which is easy to cause myopia. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a far-view screen which can solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the following technical solutions are adopted in the present application:

[0006] On the one hand, a far-view screen is provided, which comprises a display screen, a semi-transparent and semi-reflective layer, and a concave reflecting layer, wherein a light supplementing device for supplementing light for the semi-transparent and semi-reflective layer is arranged on the concave reflecting layer, the light supplementing device comprises a light supplementing light source and a focal length adjusting device, and the focal length adjusting device is used to control the focal length of the light supplementing light source to be consistent with the focal length of the concave reflecting layer.

[0007] Optionally, the concave reflecting layer is a spherical mirror, a cylindrical mirror or a free-form mirror.

[0008] Optionally, the focal length adjusting device is a plano-convex lens, and the radius of curvature of the concave reflecting layer is the same as the radius of curvature of the plano-convex lens.

[0009] Optionally, the focal length adjusting device is a biconvex lens, and the focal length of the concave reflecting layer is the same as the focal length of the biconvex lens.

[0010] Optionally, the focal length adjusting device is a liquid crystal lens or a liquid lens.

[0011] Optionally, the display screen is an electronic product with an LCD, OLED or MicroLED screen.

[0012] Optionally, the light supplement source is an incandescent lamp, an LED lamp or a fluorescent lamp.

[0013] Optionally, the concave reflecting layer has a reflecting area for reflecting the light reflected by the half-transmission half-reflection layer and an extension area located at the periphery of the reflecting area, and the light supplement device is arranged in the extension area.

[0014] Optionally, the light supplement source is arranged at the side of the extension area away from the reflecting area, and the focal length adjusting device is arranged at the side of the extension area close to the reflecting area.

[0015] Optionally, the application further comprises a light reflecting prism arranged to reflect the light emitted by the light supplement source to the half-transmission half-reflection layer.

[0016] Optionally, the light reflecting prism is arranged at the side of the focal length adjusting device away from the light supplement source.

[0017] Optionally, the light supplement device is arranged symmetrically at the center of the concave reflecting layer.

[0018] Optionally, the light supplement device is arranged annularly at the periphery of the concave reflecting layer.

[0019] Optionally, the light supplement source is a point light source or a line light source.

[0020] In another aspect, the application provides an electronic product comprising the teleidoscope as described above.

[0021] The application has the following advantages: in the application, the light supplement device is arranged in the teleidoscope to supplement the light of the half-transmission half-reflection layer, so that there is no completely black area in the half-transmission half-reflection layer, and the phenomenon of form deprivation similar to myopia is avoided.

[0022] Meanwhile, the light supplement device further comprises a focal length adjusting device, which can adjust the light emitted by the light supplement source so that the focal length of the light is the same as the focal length of the picture reflected by the concave reflecting layer, so that the position of the light obtained by the human eye and the position of the picture displayed by the display screen are in the same imaging plane, thereby ensuring the comfort of the human eye when viewing the teleidoscope. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described in detail below with reference to the drawings and embodiments.

[0024] Figure 1 Fig. 1 is a structural schematic diagram of a prior art teleidoscope;

[0025] Figure 2 Fig. 2 is a structural schematic diagram of a teleidoscope according to an embodiment of the application.

[0026] Figure 3 Structure diagram of the structure of the light supplement device on the concave reflecting layer according to the embodiment of the present application;

[0027] Figure 4 Structure diagram of the structure of the light supplement device on the concave reflecting layer according to the embodiment of the present application;

[0028] Figure 5 Structure diagram of the light path of the light supplement device according to the embodiment of the present application.

[0029] In the figure:

[0030] 1, display screen; 2, half-transmission half-reflection layer; 3, concave reflecting layer;

[0031] 100, display screen; 200, half-transmission half-reflection layer; 300, concave reflecting layer; 400, light supplement device; 410, light supplement light source; 420, focal length adjusting device; 430, light reflecting prism. DETAILED DESCRIPTION

[0032] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are described in further detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In the present application, unless explicitly defined and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the present application, it should be understood that the terms "an embodiment", "an example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0036] In the description of the present application, the terms "an embodiment", "an example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0037] In addition, it should be understood that although the present application is described in terms of embodiments, each embodiment does not necessarily contain only one independent technical solution, and the description of the present application is only for the sake of clarity. Those skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0038] Because the traditional electronic device is prone to myopia after long-term use, especially for teenagers, the myopia incidence of teenagers in China can reach about 70%, which has seriously affected the physical quality of teenagers. Therefore, the prior art provides a far image screen, which can replace the traditional electronic product to a certain extent to solve the problem of myopia caused by close-range viewing of electronic products.

[0039] The far image screen uses the principle of concave reflection imaging to form a virtual image that is erect and enlarged, and the image distance can be adjusted by designing the curvature and structural position of the concave screen. Referring to Figure 1 The basic structure of the far image screen includes a display screen 1, a semi-transparent and semi-reflective layer 2, and a concave reflective layer 3. The light emitted by the display screen 1 is reflected by the semi-transparent and semi-reflective layer 2 and then enters the concave reflective layer 3, forming a virtual image that is erect and enlarged on the side of the concave reflective layer 3 away from the semi-transparent and semi-reflective layer 2. However, the imaging size of the far image screen remains unchanged when the angles and distances between the various components of the far image screen remain unchanged. When viewing, the size of the viewing screen changes with the viewing distance, for example, when the distance between the eye and the far image screen increases, the viewed screen only occupies a small part of the field of view, and other positions in the field of view are black, forming a phenomenon similar to visual deprivation, which is also prone to myopia.

[0040] Based on this, referring to Figures 2-5As shown, the embodiment of the present application provides a far image screen, which comprises a display screen 100, a semi-transparent and semi-reflective layer 200, and a concave reflecting layer 300, wherein the concave reflecting layer 300 is provided with a light supplementing device 400 for supplementing light for the semi-transparent and semi-reflective layer 200, and the light supplementing device 400 comprises a light supplementing light source 410 and a focal length adjusting device 420, wherein the focal length adjusting device is used for controlling the focal length of the light supplementing light source 410 to be consistent with the focal length of the concave reflecting layer 300.

[0041] In the present application, the light supplementing device 400 is arranged in the far image screen, which can supplement light for the semi-transparent and semi-reflective layer 200, so that there is no completely black area, and the phenomenon of visual deprivation is avoided, and the occurrence of myopia is avoided.

[0042] The semi-transparent and semi-reflective layer 200 in the present application comprises a display area for displaying the picture of the display screen 100 and a non-display area other than the display area, and when the position of the human eye and the screen of the far image screen changes, the display area of the semi-transparent and semi-reflective layer 200 changes, for example, when the user is close to the far image screen, the display area increases, and the non-display area decreases, and when the user is far away from the far image screen, the display area decreases, and the non-display area increases; the display area displaying the picture usually has high brightness, and the non-display area is usually black, and the brightness difference between the two is too large, which can cause the user to have a visual phenomenon similar to visual deprivation, and cause eye fatigue (similar to watching TV in a dark room, the light is more dazzling). The light supplementing device 400 can supplement light for the non-display area, so that it is no longer black, and the large brightness difference between the display area is no longer formed, thereby reducing the stimulation to the eyes.

[0043] Meanwhile, the light supplementing device 400 in the present application further comprises a focal length adjusting device 420, which can adjust the light emitted by the light supplementing light source 410, so that the focal length is the same as the focal length of the picture reflected directly through the concave reflecting layer 300, so that the position of the human eye obtaining the light supplementing light and the position of the human eye obtaining the picture displayed by the display screen 100 are on the same imaging surface, thereby ensuring the comfort of the human eye when watching the far image screen.

[0044] The concave reflecting layer 300 in the present application can be a spherical mirror, a cylindrical mirror or a free-form mirror.

[0045] Specifically, the present application provides a specific scheme of focal length adjustment, which is described with reference to Figure 3 、 4 As shown, in the present embodiment, the concave reflecting layer 300 is a cylindrical mirror, the focal length adjusting device 420 is a plano-convex lens, and the curvature radius of the concave reflecting layer 300 is the same as the curvature radius of the plano-convex lens.

[0046] It can be understood that the above scheme is not as a limitation of the present application, and other schemes can also be used to adjust the focal length in other embodiments, for example, in another optional embodiment of the present application, the focal length adjusting device 420 is a double convex lens, and the focal length of the concave reflecting layer 300 is the same as the focal length of the double convex lens.

[0047] It should be noted that the focal length adjustment in the above scheme is a fixed adjustment based on the structure of the concave reflecting layer 300, that is, after the structure of the concave reflecting layer 300 is determined, a focal length adjusting device with a fixed focal length is provided to adjust the focal length of the light supplementing light source 410. However, in other embodiments of the present application, a scheme in which the focal length of the focal length adjusting device 420 is variable can also be used, for example, the focal length adjusting device 420 can use a liquid crystal lens.

[0048] A liquid lens is an optical element that uses liquid to adjust the shape and focal length of the lens. A liquid lens is usually surrounded by a transparent container or film, filled with liquid inside. By adjusting the shape of the liquid, the curvature and focal length of the lens can be changed, thereby achieving focal length adjustment.

[0049] The main features of a liquid lens include: fast response: liquid lenses can usually adjust the focal length quickly, making them suitable for applications that require fast zooming, such as real-time photography and machine vision. No mechanical movement: Compared with traditional mechanical zoom lenses, liquid lenses do not need to move the parts of the lens, so they can achieve mechanical movement-free focal length adjustment. Compact design: Since liquid lenses do not require complex mechanical components, they can be designed more compactly, suitable for small devices and applications. Variable focal length: By changing the shape of the liquid inside the liquid lens, the focal length between wide-angle and telephoto can be changed.

[0050] The display screen 100 described in the present application is an electronic product with an LCD, OLED or MicroLED screen.

[0051] LCD (Liquid Crystal Display): LCD is composed of liquid crystal molecules, which are located between two layers of glass. The arrangement of liquid crystal molecules adjusts the degree of light transmission through an electric field, thereby forming an image.

[0052] OLED (Organic Light Emitting Diode): OLED is composed of thin film layers of organic compounds that can emit light. OLEDs can be flexible, so they are also suitable for curved screens.

[0053] MicroLED (Micro Light Emitting Diode): MicroLED is composed of very small LEDs, each LED pixel is self-luminous, similar to OLED.

[0054] Optionally, the light supplement source 410 is an incandescent lamp, an LED lamp, or a fluorescent lamp. In this embodiment, an LED is used as the light supplement source 410. An LED (Light Emitting Diode) lamp is a lighting device that uses semiconductor materials to emit light. Compared with traditional incandescent lamps and fluorescent lamps, LED lamps have higher energy efficiency, longer service life, and more design flexibility.

[0055] Here are some features and advantages of LED lamps:

[0056] High energy efficiency: LED lamps have higher energy efficiency and can convert electrical energy into light energy more effectively, so they consume less power at the same brightness.

[0057] Long service life: LED lamps have a longer service life than traditional lamps, typically tens of thousands to hundreds of thousands of hours, thus reducing the cost and trouble of more frequent replacement.

[0058] Fast response: LED lamps have fast on and off response speed and do not require preheating time.

[0059] Energy saving and environmentally friendly: Due to their high energy efficiency and low energy consumption, LED lamps can reduce energy consumption and greenhouse gas emissions, making them more environmentally friendly.

[0060] Shock and impact resistant: LED lamps are made of semiconductor materials and have strong shock and impact resistance, making them suitable for a variety of environments.

[0061] Design flexibility: LED lamps have small size and multiple color options, allowing for different designs to meet various lighting needs.

[0062] No ultraviolet radiation: LED lamps do not produce ultraviolet radiation, making them more beneficial for lighting objects and human health.

[0063] Cold light source: LED lamps produce relatively little heat and do not produce significant heat like incandescent lamps, making them suitable for temperature-sensitive applications.

[0064] Dimming performance: Many LED lamps can be dimmed, allowing users to adjust the brightness as needed.

[0065] Further, the concave reflecting layer 300 in this embodiment has a reflection area for reflecting the reflected light of the semi-transmissive and semi-reflective layer 200 and an extension area located around the reflection area, and the light supplement device 400 is arranged in the extension area.

[0066] The concave reflecting layer 300 is arranged to include a reflecting area and an extension area, the reflecting area is used to reflect the light reflected by the transflective layer 200, therefore, the light supplement device 400 arranged in the extension area will not cause the occlusion of the picture displayed by the display screen 100, meanwhile, in the process of using the traditional far image screen, the position displaying black is located at the peripheral part of the picture, in the present application, the extension area is correspondingly arranged, so that the propagation distance of the light supplement light is shorter, and the product structure can be more compact. Meanwhile, the light supplement device 400 does not need to interfere with the light of the display picture itself, so that the display picture will not be distorted or color difference will not be caused.

[0067] The specific arrangement mode of the light supplement device 400 is exemplified in the embodiment of the present application, referring to Figure 3 , the light supplement light source 410 is arranged on the side of the extension area away from the reflecting area, and the focal length adjusting device is arranged on the side of the extension area close to the reflecting area. In order to realize the propagation of the light, the embodiment further includes a reflecting prism 430, the reflecting prism 430 is arranged to reflect the light emitted by the light supplement light source 410 to the transflective layer 200. The reflecting prism 430 is arranged on the side of the focal length adjusting device away from the light supplement light source 410. That is, the light supplement light source 410, the focal length adjusting device and the reflecting prism 430 are arranged from outside to inside in sequence, the light emitted by the light supplement light source 410 is reflected to the transflective layer 200 after the focal length is adjusted by the focal length adjusting device and the reflecting prism 430.

[0068] It can be understood that the light supplement light source 410, the focal length adjusting device 420 and the reflecting prism 430 are arranged from outside to inside in sequence, which is not regarded as a limitation to the present application, referring to Figure 4 , in other embodiments of the present application, the light supplement light source 410, the focal length adjusting device 420 and the reflecting prism 430 can also be arranged from inside to outside in sequence.

[0069] In the present application, in order to ensure the uniformity and balance of the light supplement light emitted by the transflective layer 200, the light supplement device 400 is arranged in a central symmetry on the concave reflecting layer 300. Preferably, the light supplement device 400 is arranged in a ring shape around the peripheral part of the concave reflecting layer 300.

[0070] In the present application, the light supplement light source 410 is a plurality of discrete point light sources or a continuous linear light source.

[0071] Referring to Figure 3 , 4 , in the embodiment, a plurality of discrete LEDs are used as the light supplement light source 410.

[0072] The far-field screen also comprises an ambient light intensity detection device for detecting the ambient light of the place where the far-field screen is used, and the light supplementing intensity of the light supplementing device 400 can be adjusted according to the light intensity of the ambient light, so that the display picture and the ambient light do not form a strong contrast to affect the eyesight.

[0073] Meanwhile, the embodiment also provides an electronic product comprising the far-field screen.

[0074] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without any creative effort, and these embodiments will all fall within the protection scope of the present application.

Claims

1. A telecentric screen, characterized by, The display screen (100), the semi-transparent and semi-reflective layer (200), and the concave reflective layer (300) are provided with a light supplementing device (400) for supplementing light for the semi-transparent and semi-reflective layer (200), the light supplementing device (400) comprising a light supplementing light source (410) and a focal length adjusting device (420) for controlling the focal length of the light supplementing light source (410) to be consistent with the focal length of the concave reflective layer (300), so that the position of the light supplementing light obtained by the human eye and the position of the display screen (100) are in the same imaging plane. The semi-transparent and semi-reflective layer (200) comprises a display area for displaying the display screen (100) and a non-display area other than the display area; the light supplementing device (400) supplements light for the non-display area. The concave reflective layer (300) has a reflection area for reflecting light reflected by the semi-transparent and semi-reflective layer (200) and an extension area located at the periphery of the reflection area, and the light supplementing device (400) is arranged in the extension area.

2. The far field screen of claim 1, wherein, The concave reflective layer (300) is a spherical mirror, a cylindrical mirror or a free-form mirror.

3. The far field screen of claim 2, wherein, The focal length adjusting device (420) is a plano-convex lens, and the radius of curvature of the concave reflective layer (300) is the same as the radius of curvature of the plano-convex lens.

4. The far field screen of claim 2, wherein, The focal length adjusting device (420) is a lenticular lens, and the focal length of the concave reflective layer (300) is the same as the focal length of the lenticular lens.

5. The far field screen of claim 2, wherein, The focal length adjusting device (420) is a liquid crystal lens or a liquid lens.

6. The far field screen of claim 5, wherein, The display screen (100) is an electronic product with an LCD, OLED or MicroLED screen.

7. The far field screen of any one of claims 1-6, wherein, The light supplementing light source (410) is an incandescent lamp, an LED lamp or a fluorescent lamp.

8. The far field screen of claim 1, wherein, The light supplementing light source (410) is arranged on the side of the extension area away from the reflection area, and the focal length adjusting device (420) is arranged on the side of the extension area close to the reflection area.

9. The far field screen of claim 1, wherein, A light reflecting prism (430) is further arranged to reflect the light emitted by the light supplementing light source (410) to the semi-transparent and semi-reflective layer (200).

10. The far field screen of claim 9, wherein, The light reflecting prism (430) is arranged on the side of the focal length adjusting device (420) away from the light supplementing light source (410).

11. The far field screen of claim 10, wherein, The light supplementing device (400) is arranged symmetrically with the center of the concave reflective layer (300).

12. The far field screen of claim 11, wherein, The light supplementing device (400) is arranged annularly around the periphery of the concave reflective layer (300).

13. The far field screen of claim 11, wherein, The light supplementing light source (410) is a plurality of discrete point light sources or a continuous linear light source.

14. An electronic product, characterized by comprising: The far-field screen according to any one of claims 1-13. The far-field screen according to any one of claims 1-13.

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