Display apparatus and display terminal

Abstract

Disclosed in the present application are a display apparatus and a display terminal. The display apparatus comprises a display screen and a micro-lens array, wherein the micro-lens array is located on one side of a display surface of the display screen and is placed opposite the display screen; the micro-lens array comprises a plurality of lens structures; and the spacing between the display screen and the micro-lens array is a first spacing, which is greater than the focal length of each lens structure and less than twice the focal length of each lens structure.

Description

Display device and display terminal

[0001] This application claims priority to Chinese patent application No. 202311516945.4 filed on November 13, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of display technology, and in particular to a display device and a display terminal. Background Art

[0003] Display technology is evolving from two-dimensional to three-dimensional. Typically, 3D displays utilize slightly different two-dimensional images viewed by the viewer's left and right eyes, which are then synthesized into a three-dimensional image in the brain. Because the images viewed by both eyes differ in position from the synthesized three-dimensional image in the brain, prolonged viewing can cause a Vergence and Accommodation Conflict (VAC) between the eye lens's convergence and accommodation functions.

[0004] To overcome the VAC effect, related technologies increase the viewpoint so that a single eye can see the three-dimensional effect, and the positions of the three-dimensional images observed by a single eye and both eyes are consistent, thereby avoiding the conflict between the convergence and accommodation functions. However, this will result in a decrease in resolution (PPI, Pixel Per Inch, pixels per inch).

[0005] Therefore, there is an urgent need to improve the above technical problems. Summary of the Invention

[0006] The present application provides a display device and a display terminal, which can improve the display resolution of three-dimensional display of the display device.

[0007] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0008] The present application provides a display device, comprising:

[0009] Display screen;

[0010] a microlens array, located on one side of a display surface of the display screen and opposite to the display screen, the microlens array comprising a plurality of lens structures;

[0011] The distance between the display screen and the microlens array is a first distance, and the first distance is greater than the focal length of the lens structure and less than 2 times the focal length of the lens structure.

[0012] The present application also provides a display terminal, the display terminal including a display device, the display device including:

[0013] Display screen;

[0014] a microlens array, located on one side of a display surface of the display screen and opposite to the display screen, the microlens array comprising a plurality of lens structures;

[0015] The distance between the display screen and the microlens array is a first distance, and the first distance is greater than the focal length of the lens structure and less than 2 times the focal length of the lens structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a front view schematic diagram of a display device provided in an embodiment of the present application;

[0017] FIG2 is a schematic diagram of a top view of a display device provided in an embodiment of the present application;

[0018] FIG3 is a schematic diagram of the three-dimensional display principle of a display device provided in an embodiment of the present application;

[0019] FIG4 is a diagram illustrating the display principle of the virtual-real combination mode of the display device provided by an embodiment of the present application;

[0020] FIG5 is a diagram illustrating the principles of the real image mode and the virtual image mode;

[0021] FIG6 is a diagram illustrating the display principle of a double virtual image mode in the related art;

[0022] FIG. 7 is a diagram showing data of resolution improvement of a display device provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0024] As shown in FIGS. 1 and 2, the present application provides a display device, which includes a display screen 11 and a microlens array 12. The microlens array 12 is located on the display surface side of the display screen 11 and is opposed to the display screen 11. The microlens array 12 includes a plurality of lens structures 120. Among them, the distance between the display screen 11 and the microlens array 12 is a first distance g1, and the first distance g1 is greater than the focal length f1 of the lens structure and less than 2 times the focal length f1 of the lens structure.

[0025] In this embodiment, the display device is a three-dimensional display device and can be used to view three-dimensional images.

[0026] In this embodiment, the display screen 11 can be an LCD panel, an OLED panel, a Mini-LED panel, a Micro-LED panel, etc. The display screen 11 includes a display area AA, and a plurality of pixels are provided in the display area AA.

[0027] In this embodiment, the microlens array 12 is disposed on the display surface side of the display screen 11, and the microlens array 12 covers the display surface. The microlens array 12 includes a plurality of lens structures 120, and each lens structure 120 has the same focal length, the same shape, and the same size. It should be noted that due to the influence of the manufacturing process of the microlens array 12, there may be certain deviations in the focal length f1, shape, and size of each lens structure. At this time, it should also be understood that the lens structures 120 are the same. The plurality of lens structures 120 can be connected and arranged, thereby simplifying the assembly process of the display device and the microlens array 12.

[0028] The distance between the microlens array 12 and the display screen 11 is the first distance g1. It should be noted that the first distance g1 is the distance between the optical center of the lens structure 120 and the display surface of the display screen 11. The distances between the optical centers of the plurality of lens structures 120 and the display surface of the display screen 11 are the same.

[0029] The first distance g1 is greater than the focal length f1 of the lens structure and less than 2 times the focal length f1 of the lens structure, that is, f1 < g1 < 2*f1. Therefore, the image of the display screen 11 forms a real image on the side of the microlens array 12 away from the display screen 11 after being converged by the microlens array 12, that is, the display screen 11 and the real image are on both sides of the microlens array 12. Since when the first distance g1 is fixed, the size of the real image's pattern is smaller than that of the virtual image's pattern, that is, the number of pixels per inch of the real image is greater than that of the virtual image, thereby improving the resolution of the display device.

[0030] Since the positions of the images observed by the two eyes and the three-dimensional image synthesized in the brain are different, long-term observation will cause the VAC effect.

[0031] In order to overcome the VAC effect, in the display device of the present application, as shown in Figures 1 to 3, the display screen 11 includes a plurality of first pixels p1 and a plurality of second pixels p2, and a lens structure 120 corresponds to at least one first pixel p1 and one second pixel p2; wherein, the light emitted by the first pixel p1 converges at the first viewpoint through the lens structure 120, and the light emitted by the second pixel p2 converges at the second viewpoint through the lens structure 120, and the first viewpoint and the second viewpoint are spaced apart, and the distance between the first viewpoint and the second viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm.

[0032] In this embodiment, one lens structure 120 corresponds to at least one first pixel p1 and one second pixel p2, that is, the orthographic projection of one lens structure 120 on at least the display surface of the display screen 11 covers at least one first pixel p1 and one second pixel p2, and light emitted from the first pixel p1 and the second pixel p2 is converged by the same lens structure 120. The light emitted from the first pixel p1 is converged at a first viewpoint by the lens structure 120, and the light emitted from the second pixel p2 is converged at a second viewpoint by the lens structure 120.

[0033] The horizontal range of the human pupil is typically 2 mm to 8 mm. To achieve a 3D effect with a single eye, the distance between the first and second viewpoints must be within the range of the pupil. This means the distance between the first and second viewpoints must be greater than or equal to 2 mm and less than or equal to 8 mm.

[0034] In this embodiment, the light emitted by the first pixel p1 and the second pixel p2 is slightly different, so that the images viewed at the first viewpoint and the second viewpoint are slightly different, thereby generating a three-dimensional effect through parallax.

[0035] In the display device of the present application, as shown in Figures 1 and 2, the display screen 11 includes multiple third pixels p3 and multiple fourth pixels p4, and a lens structure 120 corresponds to at least one third pixel p3 and one fourth pixel p4. The light emitted by the third pixel p3 converges at the third viewpoint through the lens structure 120, and the light emitted by the fourth pixel p4 converges at the fourth viewpoint through the lens structure 120. The third viewpoint and the fourth viewpoint are arranged at intervals; wherein, the distance between the third viewpoint and the fourth viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm, and the distance between any one of the first viewpoint and the second viewpoint and any one of the third viewpoint and the fourth viewpoint is greater than 8 mm.

[0036] In this embodiment, the display screen 11 further includes a third pixel p3 and a fourth pixel p4, and one lens structure 120 corresponds to at least one third pixel p3 and one fourth pixel p4. That is, the orthographic projection of one lens structure 120 on at least the display surface of the display screen 11 covers at least one third pixel p3 and one fourth pixel p4, and light emitted from the third pixel p3 and the fourth pixel p4 is converged by the same lens structure 120.

[0037] Similarly, the distance between the third viewpoint and the fourth viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm, so that a single eye can see the third viewpoint and the fourth viewpoint, thereby being able to see a three-dimensional effect.

[0038] The distance between any one of the first viewpoint and the second viewpoint and any one of the third viewpoint and the fourth viewpoint is greater than 8 mm. In other words, the distance between any one of the first viewpoint and the second viewpoint and the third viewpoint is greater than 8 mm, and the distance between any one of the first viewpoint and the second viewpoint and the fourth viewpoint is greater than 8 mm.

[0039] Through the above settings, the first viewpoint and the second viewpoint can be observed by the same eye, and the third viewpoint and the fourth viewpoint can be observed by another eye, so that images can be observed from different observation angles, improving the perspective continuity of the three-dimensional scene.

[0040] In the display device of the present application, as shown in Figures 2 and 4, the display device also includes a main lens 13, which is arranged on the side of the microlens array 12 facing away from the display screen 11; wherein the microlens array 12 causes the image of the display screen 11 to form a first real image v1, and the main lens 13 is located on the side of the first real image v1 facing away from the microlens array 12, and the distance between the first real image v1 and the main lens 13 is a second distance g2, and the second distance g2 is greater than zero and less than the focal length f2 of the main lens.

[0041] In this embodiment, the display device may be a VR (Virtual Reality) display device.

[0042] In this embodiment, the display device includes a main lens 13, which is disposed on the side of the microlens array 12 facing away from the display screen 11. The image on the display screen 11 is converged by the microlens array 12 to form a first real image v1 located on the side of the microlens array 12 facing away from the display screen 11. The first real image v1 is located between the microlens array 12 and the main lens 13, and the first real image v1 is within the focal length f2 of the main lens.

[0043] The distance between the first real image v1 and the main lens 13 is the second distance g2. It should be noted that the second distance g2 is the distance from the first real image v1 to the optical center of the main lens 13. Since the second distance g2 is greater than zero and less than the focal length f2 of the main lens, that is, 0 < g2 < f2, the first real image v1 is converged by the main lens 13 to form a second virtual image v2. The second virtual image v2 is located on the side of the display screen 11 away from the main lens 13, and the second virtual image v2 is the final image. At this time, the second virtual image v2 and the display screen 11 are on the same side of the microlens array 12, and the first real image v1 and the main lens 13 are on the other side of the microlens array 12.

[0044] Figure 4 shows the virtual-real combination mode. The virtual-real combination mode means that the first real image v1 is formed by the microlens array 12, and the first real image v1 forms a second virtual image v2 through the main lens 13, and the second virtual image v2 is the final image. In the virtual-real combination mode, f1 < g1 < 2*f1, 0 < g2 < f2.

[0045] In this embodiment, by adopting the virtual-real combination mode, compared with the double virtual image mode, the display resolution can be significantly improved. This is because the display resolution in the real image mode is higher than that in the virtual image mode.

[0046] The following will be described with reference to FIGS. 5 and 6. As shown in FIG. 5, (a) in FIG. 5 shows the real image mode, and (b) shows the virtual image mode; the other conditions of the real image mode and the virtual image mode are the same, and the difference is that the distance between the display screen 11 and the microlens array 12 in (a) is g1, and the distance between the display screen 11 and the microlens array 12 in (b) is g1'.

[0047] In the real image mode, the first real image v1 and the display screen 11 are on both sides of the microlens array 12, and f1 < g1 < 2*f1; where f1 is the focal length f1 of the lens structure.

[0048] In the virtual image mode, the first virtual image v3 and the display screen 11 are on the same side of the microlens array 12, and 0 < g1' < f1. Where f1 is the focal length f1 of the lens structure.

[0049] According to the combination of the Gaussian imaging formula and the similar triangle formula, the display pixel size of the first real image v1 in the real image mode can be obtained as x1 = (L1 - f1)u1 / f1; the display pixel size of the first virtual image v3 in the virtual image mode is x3 = (L1' + f1)u1 / f1.

[0050] Among them, L1 is the distance between the first real image v1 and the microlens array 12, L1' is the distance between the first virtual image v3 and the microlens array 12, f1 is the focal length f1 of the lens structure, and u1 is the pixel size of the display screen 11. From the above formula, it can be obtained that the pixel size x3 of the first virtual image v3 is larger than the pixel size x1 of the first real image v1. Therefore, the resolution of the first virtual image v3 is lower.

[0051] As shown in FIG. 6, FIG. 6 is an explanatory diagram of the display principle of the double virtual image mode in the related art. The double virtual image mode means that the first virtual image v3 is formed by the microlens array 12, and the first virtual image v3 forms the third virtual image v4 through the main lens 13. The third virtual image v4 is the final image. For the convenience of comparison and explanation, in FIG. 6, the display screen 11, the microlens array 12, and the main lens 13 are the same as those in FIG. 4. The difference is that the distance between the display screen 11 and the microlens array 12 is g1', and the distance L1' between the first virtual image v3 and the microlens array 12, that is, g1'≠g1, L1'≠L1. In the double virtual image mode, 0 < g1' < f1, 0 < g'2 < f2.

[0052] Since the pixel size x3 of the first virtual image v3 is larger than the pixel size x1 of the first real image v1, therefore, the pixel size of the final image in the virtual-real combination mode is smaller than the pixel size of the final image in the double virtual image mode, that is, the resolution of the virtual-real combination mode is higher than that of the double virtual image mode.

[0053] FIG. 7 shows a resolution improvement data graph of the display device provided by the embodiment of the present application. It is assumed that the focal length f1 of the lens structure in the double virtual image mode and the virtual-real combination mode is f1, the focal length f2 of the main lens is f2, and g2 = g2'. The position of the final image plane is the same, that is, the distance L2 between the second virtual image v2 and the main lens 13 is equal to the distance L2' between the third virtual image v4 and the main lens 13. In the double virtual image mode, 0 < g1' < f1, 0 < g2' < f2; in the virtual-real combination mode, f1 < g1 < 2*f1, 0 < g2 < f2.

[0054] For example, when f1 = 5 mm, f2 = 65 mm, g2 = g2' = 61 mm, and L2 = L2' = 1000 mm, let g1 be designed to be 3.8 mm to 4.6 mm respectively, and g1' = 6 mm. It can be calculated that the resolution ratio of the virtual-real combination mode scheme to the double virtual image mode scheme between the final image planes is 1.9 to 5.6 times respectively.

[0055] Please refer to Figure 7 . The horizontal axis represents the first spacing g1, and the vertical axis represents the ratio of the resolution of the final image formed by the virtual-real combined mode to the resolution of the final image formed by the dual virtual image mode. The resolution ratios between the final image planes for the virtual-real combined mode and the dual virtual image mode are 1.9 to 5.6 times, respectively. For example, when g1 is 4.2 mm, the resolution ratio between the final image planes for the virtual-real combined mode and the dual virtual image mode is 2.8 times, indicating that the virtual-real combined mode of the present application can significantly improve display resolution.

[0056] In the display device of the present application, the focal length f1 of the lens structure is smaller than the focal length f2 of the main lens, and the first distance g1 is smaller than the second distance g2.

[0057] In this embodiment, the lens structure 120 is used to enable the image on the display screen 11 to form a three-dimensional display, and the focal length f1 of the lens structure ranges from 1 mm to 20 mm.

[0058] In this embodiment, the main lens 13 is used to magnify the three-dimensional image, and the focal length f2 of the main lens ranges from 20 mm to 100 mm.

[0059] It should be noted that the focal length f1 of the lens structure and the focal length f2 of the main lens can be adjusted according to the size of the display screen 11 and the position of the viewer, and this application does not impose any restrictions on this.

[0060] In the display device of the present application, the lens structure 120 is a strip convex lens, and multiple strip convex lenses are arranged along the first direction D1 and extend along the second direction D2; wherein, in the first direction D1, the length of the short side of the strip convex lens is equal to an integer multiple of the width of the pixel in the display screen 11.

[0061] In this embodiment, the lens structure 120 may be a strip convex lens. The long axis of the strip convex lens is in the second direction D2, and the plurality of strip convex lenses are arranged along the first direction D1. The cross-sectional shape of the strip convex lens perpendicular to the second direction D2 includes at least one arcuate segment. The strip convex lens may be a plano-convex lens or a biconvex lens.

[0062] Typically, a 3D display device requires multiple horizontal viewpoints to accommodate different viewers, while the number of vertical viewpoints can be smaller. Therefore, in some embodiments, the first direction D1 can be horizontal, and the second direction D2 can be vertical. This allows for multiple horizontal viewpoints to meet the viewing needs of multiple viewers.

[0063] In this embodiment, the length of the side of the strip convex lens in the first direction D1 is the short side. The length of the short side of the strip convex lens is equal to an integer multiple of the width of the pixel on the display screen 11. The pixel width refers to the size of the pixel in the first direction D1. This arrangement enables multiple pixels to be converged through the same strip convex lens to form an image, achieving a three-dimensional effect that can be viewed by one eye.

[0064] Optionally, in some embodiments, the angle between the second direction D2 and the first direction D1 is 90 degrees. That is, the first direction D1 is perpendicular to the second direction D2. For example, the first direction D1 can be a horizontal direction, and the second direction D2 can be a vertical direction, but the present invention is not limited thereto.

[0065] Optionally, in some embodiments, the angle between the second direction D2 and the first direction D1 is greater than 0 degrees and less than 90 degrees. With the above configuration, the optical interference between the display screen 11 and the microlens array 12 can be improved, thereby reducing the moiré phenomenon.

[0066] In the display device of the present application, the lens structure 120 is a convex lens, and a plurality of convex lenses are arranged in at least two directions. The display screen 11 includes a plurality of pixels, and the convex lenses are arranged in alignment with the pixels.

[0067] In this embodiment, the lens structure 120 is a convex lens, which is arranged in at least two directions. The angle between the two directions can be greater than 0 degrees and less than or equal to 90 degrees. The convex lens can be a block convex lens, and multiple convex lenses can be connected to simplify the assembly process of the convex lens and the display screen 11.

[0068] The orthographic projection of the convex lens on the display surface of the display screen 11 can be circular, rectangular, triangular, pentagonal, etc. This application does not limit the shape of the convex lens. The convex lens is arranged in alignment with the pixel, that is, the orthographic projection of the convex lens on the display screen 11 is aligned with the pixel, and at least one pixel is located within the orthographic projection of the convex lens on the display screen 11.

[0069] It should be understood that the shape of the convex lens can be adaptively set according to the shape of the pixel, so that the convex lens and the pixel are aligned.

[0070] The present application also provides a display terminal, which includes the above-mentioned display device.

[0071] In this embodiment, the display terminal may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, a VR device, or the like.

[0072] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0073] The above is a detailed introduction to a display device and a display terminal provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display device, comprising: Display screen; A micro lens array, located on one side of the display surface of the display screen and opposite to the display screen, the micro lens array comprising a plurality of lens structures; Wherein, the distance between the display screen and the microlens array is a first distance, and the first distance is greater than the focal length of the lens structure and less than 2 times the focal length of the lens structure.

2. The display device according to claim 1, wherein: The display screen includes a plurality of first pixels and a plurality of second pixels, and one lens structure corresponds to at least one of the first pixels and one of the second pixels; Among them, the light emitted by the first pixel is converged at a first viewpoint through the lens structure, and the light emitted by the second pixel is converged at a second viewpoint through the lens structure, the first viewpoint and the second viewpoint are set at an interval, and the distance between the first viewpoint and the second viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm.

3. The display device according to claim 2, wherein: The display screen includes a plurality of third pixels and a plurality of fourth pixels, one lens structure corresponds to at least one third pixel and one fourth pixel, light emitted by the third pixel is converged at a third viewpoint through the lens structure, light emitted by the fourth pixel is converged at a fourth viewpoint through the lens structure, and the third viewpoint and the fourth viewpoint are spaced apart; The distance between the third viewpoint and the fourth viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm, and the distance between any one of the first viewpoint and the second viewpoint and any one of the third viewpoint and the fourth viewpoint is greater than 8 mm.

4. The display device according to any one of claims 1 to 3, wherein: The display device further comprises a main lens, wherein the main lens is arranged on a side of the microlens array away from the display screen; The microlens array enables the image on the display screen to form a first real image, the main lens is located on a side of the first real image away from the microlens array, and the distance between the first real image and the main lens is a second distance, which is greater than zero and less than the focal length of the main lens.

5. The display device according to claim 4, wherein: The focal length of the lens structure is smaller than the focal length of the main lens, and the first spacing is smaller than the second spacing.

6. The display device according to claim 4, wherein: The focal length of the lens structure ranges from 1 mm to 20 mm, and the focal length of the main lens ranges from 20 mm to 100 mm.

7. The display device according to claim 1, wherein: The lens structure is a strip convex lens, and a plurality of the strip convex lenses are arranged along a first direction and extend along a second direction.

8. The display device according to claim 7, wherein: In the first direction, the length of the short side of the strip convex lens is equal to an integral multiple of the width of a pixel in the display screen.

9. The display device according to claim 7 or 8, wherein: An included angle between the second direction and the first direction is greater than 0 degree and less than or equal to 90 degrees.

10. The display device according to claim 1, wherein: The lens structure is a convex lens, a plurality of the convex lenses are arranged in at least two directions, the display screen includes a plurality of pixels, and the convex lenses are arranged in alignment with the pixels.

11. The display device according to claim 10, wherein: The shape of the orthographic projection of the convex lens on the display surface of the display screen includes a circle, a rectangle, a triangle, and a pentagon.

12. A display terminal, comprising a display device, wherein the display device comprises: Display screen; A micro lens array, located on one side of the display surface of the display screen and opposite to the display screen, the micro lens array comprising a plurality of lens structures; Wherein, the distance between the display screen and the microlens array is a first distance, and the first distance is greater than the focal length of the lens structure and less than 2 times the focal length of the lens structure.

13. The display terminal according to claim 12, wherein: The display screen includes a plurality of first pixels and a plurality of second pixels, and one lens structure corresponds to at least one of the first pixels and one of the second pixels; Among them, the light emitted by the first pixel is converged at a first viewpoint through the lens structure, and the light emitted by the second pixel is converged at a second viewpoint through the lens structure, the first viewpoint and the second viewpoint are set at an interval, and the distance between the first viewpoint and the second viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm.

14. The display terminal according to claim 13, wherein: The display screen includes a plurality of third pixels and a plurality of fourth pixels, one lens structure corresponds to at least one third pixel and one fourth pixel, light emitted by the third pixel is converged at a third viewpoint through the lens structure, light emitted by the fourth pixel is converged at a fourth viewpoint through the lens structure, and the third viewpoint and the fourth viewpoint are spaced apart; The distance between the third viewpoint and the fourth viewpoint is greater than or equal to 2 mm and less than or equal to 8 mm, and the distance between any one of the first viewpoint and the second viewpoint and any one of the third viewpoint and the fourth viewpoint is greater than 8 mm.

15. The display terminal according to any one of claims 12 to 14, wherein: The display device further comprises a main lens, wherein the main lens is arranged on a side of the microlens array away from the display screen; The microlens array enables the image on the display screen to form a first real image, the main lens is located on a side of the first real image away from the microlens array, and the distance between the first real image and the main lens is a second distance, which is greater than zero and less than the focal length of the main lens.

16. The display terminal according to claim 15, wherein: The focal length of the lens structure is smaller than the focal length of the main lens, and the first spacing is smaller than the second spacing.

17. The display terminal according to claim 15, wherein: The focal length of the lens structure ranges from 1 mm to 20 mm, and the focal length of the main lens ranges from 20 mm to 100 mm.

18. The display terminal according to claim 12, wherein: The lens structure is a strip convex lens, and a plurality of the strip convex lenses are arranged along a first direction and extend along a second direction; Wherein, in the first direction, the length of the short side of the strip convex lens is equal to an integral multiple of the width of a pixel in the display screen.

19. The display terminal according to claim 18, wherein: An included angle between the second direction and the first direction is greater than 0 degree and less than or equal to 90 degrees.

20. The display terminal according to claim 12, wherein: The lens structure is a convex lens, a plurality of the convex lenses are arranged in at least two directions, the display screen includes a plurality of pixels, and the convex lenses are arranged in alignment with the pixels.

Images