CN117452661A - Display device and display terminal - Google Patents

Display device and display terminal Download PDF

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Publication number
CN117452661A
CN117452661A CN202311516945.4A CN202311516945A CN117452661A CN 117452661 A CN117452661 A CN 117452661A CN 202311516945 A CN202311516945 A CN 202311516945A CN 117452661 A CN117452661 A CN 117452661A
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China
Prior art keywords
lens
display screen
distance
display device
display
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CN202311516945.4A
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Chinese (zh)
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张桂洋
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to CN202311516945.4A priority Critical patent/CN117452661A/en
Publication of CN117452661A publication Critical patent/CN117452661A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
    • G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application discloses a display device and a display terminal. The display device comprises a display screen and a micro-lens array, wherein the micro-lens array is positioned on one side of a display surface of the display screen and is opposite to the display screen, and the micro-lens array comprises a plurality of lens structures; the distance between the display screen and the micro lens array is a first distance, and the first distance is larger than the focal length of the lens structure and smaller than 2 times of the focal length of the lens structure. This application is through setting the interval with microlens array and display screen to first interval, and first interval is greater than the focal length of lens structure and is less than 2 times the focal length of lens structure, consequently, the picture of display screen forms the real image that is located microlens array and deviates from display screen one side after microlens array gathers. Since the first interval is fixed, the size of the pattern of the real image is smaller than that of the pattern of the virtual image, i.e. the number of pixels per inch of the real image is larger than that of the virtual image, thereby improving the resolution of the display device.

Description

Display device and display terminal
Technical Field
The application relates to the technical field of display, in particular to a display device and a display terminal.
Background
Display technology has evolved from two-dimensional display to three-dimensional display, and generally, a three-dimensional display scheme is to observe slightly different two-dimensional images with the left and right eyes of an observer and then to synthesize the three-dimensional images in the brain. Since the positions of the images observed by both eyes and the three-dimensional image synthesized in the brain are different, long-term observation causes a conflict between the convergence of the lens of the eye and the accommodation function (VAC, vergence and Accommodation Conflict).
In order to overcome the VAC effect, the related art enables a single eye to see a three-dimensional effect by increasing a viewing point, and positions of three-dimensional images observed by the single eye and both eyes are identical, thereby avoiding convergence and adjustment function conflicts, but this may result in a decrease in resolution (PPI, pixel Per Inch).
Therefore, there is a need to improve the above technical problems.
Disclosure of Invention
The application provides a display device and a display terminal, which can improve the display resolution of three-dimensional display of the display device.
In order to solve the technical problems, the technical scheme provided by the application is as follows:
the application provides a display device, the display device includes:
a display screen;
the micro-lens array is positioned on one side of the display surface of the display screen and is opposite to the display screen, and the micro-lens array comprises a plurality of lens structures;
the distance between the display screen and the micro lens array is a first distance, and the first distance is larger than the focal length of the lens structure and smaller than 2 times the focal length of the lens structure.
In the display device of the present application, the display screen includes a plurality of first pixels and a plurality of second pixels, and one of the lens structures corresponds to at least one of the first pixels and one of the second pixels;
the light emitted by the first pixel is converged at a first view point through the lens structure, the light emitted by the second pixel is converged at a second view point through the lens structure, the first view point and the second view point are arranged at intervals, and the distance between the first view point and the second view point is greater than or equal to 2 mm and less than or equal to 8 mm.
In the display device of the present application, the display screen includes a plurality of third pixels and a plurality of fourth pixels, one of the lens structures at least corresponds to one of the third pixels and one of the fourth pixels, light emitted by the third pixel is converged at a third view point through the lens structure, light emitted by the fourth pixel is converged at a fourth view point through the lens structure, and the third view point and the fourth view point are arranged at intervals;
wherein a 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 a 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 the display device of the application, the display device further comprises a main lens, wherein the main lens is arranged on one side of the micro lens array, which is away from the display screen;
the micro lens array enables the image of the display screen to form a first real image, the main lens is located on one side, away from the micro lens array, of the first real image, the distance between the first real image and the main lens is a second distance, and the second distance is larger than zero and smaller than the focal length of the main lens.
In the display device of the present application, the focal length of the lens structure is smaller than the focal length of the main lens, and the first pitch is smaller than the second pitch.
In the display device of the present application, 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.
In the display device of the present application, the lens structure is a strip-shaped convex lens, and a plurality of strip-shaped convex lenses are arranged along a first direction and extend along a second direction;
in the first direction, the length of the short side of the strip-shaped convex lens is equal to an integral multiple of the width of the pixels in the display screen.
In the display device of the present application, an included angle between the second direction and the first direction is greater than 0 degrees and less than or equal to 90 degrees.
In the display device of the application, the lens structure is a convex lens, a plurality of convex lenses are at least distributed along two directions, the display screen comprises a plurality of pixels, and the convex lenses are arranged in alignment with the pixels.
The application also provides a display terminal, which comprises the display device.
The beneficial effects are that: the application discloses a display device and a display terminal. The display device comprises a display screen and a micro-lens array, wherein the micro-lens array is positioned on one side of a display surface of the display screen and is opposite to the display screen, and the micro-lens array comprises a plurality of lens structures; the distance between the display screen and the micro lens array is a first distance, and the first distance is larger than the focal length of the lens structure and smaller than 2 times the focal length of the lens structure. This application is through setting the interval with microlens array and display screen to first interval, and first interval is greater than the focal length of lens structure and is less than 2 times the focal length of lens structure, consequently, the picture of display screen forms the real image that is located microlens array and deviates from display screen one side after microlens array gathers. Since the first interval is fixed, the size of the pattern of the real image is smaller than that of the pattern of the virtual image, i.e. the number of pixels per inch of the real image is larger than that of the virtual image, thereby improving the resolution of the display device.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic front view of a display device according to an embodiment of the present application;
fig. 2 is a schematic top view of a display device according to an embodiment of the present disclosure;
fig. 3 is a schematic three-dimensional display principle diagram of a display device according to an embodiment of the present application;
fig. 4 is a schematic illustration of display of virtual-real combination mode of the display device according to the embodiment of the present application;
FIG. 5 is a schematic illustration of a real image mode and a virtual image mode;
fig. 6 is a schematic illustration of the display of the dual virtual image mode in the related art;
fig. 7 is a resolution enhancement data diagram of a display device according to an embodiment of the present application.
Reference numerals illustrate:
the display screen 11, the display area AA, the first pixel p1, the second pixel p2, the third pixel p3, the fourth pixel p4, the microlens array 12, the lens structure 120, the focal length f1 of the lens structure 120, the main lens 13, the focal length f2 of the main lens 13, the first pitch g1, the second pitch g2, the first real image v1, the second virtual image v2, the first virtual image v3, the third virtual image v4, the pitch L1 of the first real image v1 and the microlens array 12, the pitch L1 of the first virtual image v3 and the microlens array 12 ', the pitch L2 of the second virtual image v2 and the main lens 13, the pitch L2' of the third virtual image v4 and the main lens 13, the pixel size x1 of the first real image v1, the pixel size x3 of the first virtual image v3, the first direction D1, and the second direction D2.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application. In this application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
As shown in fig. 1 and 2, the present application provides a display device, which includes a display screen 11 and a microlens array 12, where the microlens array 12 is located on a display surface side of the display screen 11 and is opposite to the display screen 11, and the microlens array 12 includes a plurality of lens structures 120; 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.
In this embodiment, the display device is a three-dimensional display device, and may be used to view a three-dimensional image.
In this embodiment, the display screen 11 may be an LCD panel, an OLED panel, a Mini-LED panel, a Micro-LED panel, or the like. The display screen 11 includes a display area AA provided with a plurality of pixels.
In the present embodiment, the microlens array 12 is provided on the display surface side of the display panel 11, and the microlens array 12 covers the display surface. The microlens array 12 includes a plurality of lens structures 120, each lens structure 120 having 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 some deviation in the focal length f1, shape and size of each lens structure, and it should be understood that the lens structures 120 are the same. The plurality of lens structures 120 may be disposed in a connected manner, thereby simplifying the assembly process of the display device and the microlens array 12.
The distance between the microlens array 12 and the display screen 11 is a first distance g1, and it should be noted that the first distance g1 is a distance between the optical center of the lens structure 120 and the display surface of the display screen 11. The optical centers of the plurality of lens structures 120 are spaced apart from the display surface of the display screen 11 by the same distance.
The first pitch 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, i.e. f1< g1<2 x f1. Therefore, the pictures of the display screen 11 are converged by the micro lens array 12 to form a real image on one side of the micro lens array 12 away from the display screen 11, that is, the display screen 11 and the real image are located on two sides of the micro lens array 12. Since the first pitch g1 is set, the size of the pattern of the real image is smaller than that of the pattern of the virtual image, i.e., 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.
Since the positions of the images observed by both eyes and the three-dimensional image synthesized in the brain are different, the VAC effect is caused by long-time observation.
To overcome VAC effect, in the display device of the present application, as shown in fig. 1 to 3, the display screen 11 includes a plurality of first pixels p1 and a plurality of second pixels p2, and one lens structure 120 corresponds to at least one first pixel p1 and one second pixel p2; the light emitted by the first pixel p1 is converged at the first view point through the lens structure 120, the light emitted by the second pixel p2 is converged at the second view point through the lens structure 120, the first view point and the second view point are arranged at intervals, and the distance between the first view point and the second view point is greater than or equal to 2 mm and less than or equal to 8 mm.
In this embodiment, one lens structure 120 corresponds to at least one first pixel p1 and one second pixel p2, that is, at least one first pixel p1 and one second pixel p2 are covered by a front projection of one lens structure 120 on at least a display surface of the display screen 11, and light rays emitted from the first pixel p1 and the second pixel p2 are converged by the same lens structure 120. The light emitted by the first pixel p1 is converged at the first view point through the lens structure 120, and the light emitted by the second pixel p2 is converged at the second view point through the lens structure 120.
The movement range of the pupil of the human eye in the horizontal direction is generally 2 mm to 8 mm, and in order for the single eye to see the three-dimensional effect, it is necessary to locate the distance between the first viewpoint and the second viewpoint within the movement range of the pupil. That is, 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.
In the present embodiment, the light emitted from the first pixel p1 and the second pixel p2 are slightly different, so that the images viewed from the first viewpoint and the second viewpoint are slightly different, and a three-dimensional effect is generated via parallax.
In the display device of the present application, as shown in fig. 1 and 2, the display screen 11 includes a plurality of third pixels p3 and a plurality of fourth pixels p4, one lens structure 120 at least corresponds to one third pixel p3 and one fourth pixel p4, light emitted by the third pixel p3 is converged at a third view point through the lens structure 120, light emitted by the fourth pixel p4 is converged at a fourth view point through the lens structure 120, and the third view point and the fourth view point are arranged at intervals; the distance between the third viewpoint and the fourth viewpoint is more 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 more than 8 mm.
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, at least one lens structure 120 covers at least one third pixel p3 and one fourth pixel p4 in a front projection on the display surface of the display screen 11, and the light rays emitted from the third pixel p3 and the fourth pixel p4 are converged by the same lens structure 120.
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 the third viewpoint and the fourth viewpoint can be seen by a single eye, and thus a three-dimensional effect can be seen.
The distance between any one of the first view point and the second view point and any one of the third view point and the fourth view point is more than 8 mm. That is, 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.
Through the arrangement, the first view point and the second view point can be observed by the same eye, and the third view point and the fourth view point can be observed by the other eye, so that images can be observed from different observation view angles, and the view angle continuity of the three-dimensional scene is improved.
In the display device of the present application, as shown in fig. 2 and 4, the display device further includes a main lens 13, where the main lens 13 is disposed on a side of the microlens array 12 facing away from the display screen 11; the micro lens array 12 forms a first real image v1 on the image of the display screen 11, the main lens 13 is located on a side of the first real image v1 away from the micro lens array 12, and a distance between the first real image v1 and the main lens 13 is a second distance g2, where the second distance g2 is greater than zero and smaller than a focal length f2 of the main lens.
In this embodiment, the display device may be a VR (Virtual Reality) display apparatus.
In this embodiment, the display device includes a main lens 13, and the main lens 13 is disposed on a side of the microlens array 12 away from the display screen 11. The pictures of the display screen 11 are converged by the micro lens array 12 to form a first real image v1 positioned on one side of the micro lens array 12 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 located within the focal length f2 of the main lens.
The distance between the first real image v1 and the main lens 13 is a second distance g2, and the second distance g2 is the distance between the first real image v1 and the optical center of the main lens 13. Since the second distance g2 is greater than zero and smaller than the focal length f2 of the main lens, i.e., 0< g2< f2, the first real image v1 forms a second virtual image v2 after converging through the main lens 13. The second virtual image v2 is located on the side of the display screen 11 facing away from the main lens 13, the second virtual image v2 being the final image. At this time, the second virtual image v2 and the display screen 11 are positioned on the same side of the microlens array 12, and the first real image v1 and the main lens 13 are positioned on the other side of the microlens array 12.
Fig. 4 shows a virtual-real combining mode. The virtual-real combination mode is that a first real image v1 is formed through the microlens array 12, 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 binding mode, f1< g1<2 x f1,0< g2< f2.
In this embodiment, by adopting the virtual-real combination mode, the display resolution can be significantly improved compared to the dual virtual mode. This is because the display resolution in the real image mode is higher than the display resolution in the virtual image mode.
This is explained below in connection with fig. 5 and 6. As shown in fig. 5, fig. 5 (a) shows a real image mode and (b) shows a virtual image mode; the other conditions of the real image mode and the virtual image mode are identical, except that (a) the distance between the display panel 11 and the microlens array 12 is g1, and (b) the distance between the display panel 11 and the microlens array 12 is g1'.
In the real image mode, the first real image v1 and the display screen 11 are respectively located at two sides of the microlens array 12, and f1< g1<2×f1; wherein f1 is the focal length f1 of the lens structure.
In the virtual image mode, the first virtual image v3 is located on the same side of the microlens array 12 as the display screen 11, and 0< g1' < f1. Wherein f1 is the focal length f1 of the lens structure.
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 calculated as x1= (L1-f 1) u1/f1; the display pixel size of the first virtual image v3 in the virtual image mode is x3= (L1' +f1) u1/f1.
Where 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, u1 is the pixel size of the display screen 11, as can be obtained by the above formula, the pixel size x3 of the first virtual image v3 is larger than the pixel size x1 of the first real image v1, and therefore the resolution of the first virtual image v3 is lower.
As shown in fig. 6, fig. 6 is a schematic illustration of the display of the dual virtual image mode in the related art. The dual virtual image mode refers to a first virtual image v3 formed through the microlens array 12, and the first virtual image v3 forms a third virtual image v4 through the main lens 13. The third virtual image v4 is the final image. For comparison, in fig. 6, the display screen 11, the microlens array 12, and the main lens 13 are the same as those in fig. 4, except that the distance between the display screen 11 and the microlens array 12 is g1', and the distance between the first virtual image v3 and the microlens array 12 is L1', that is, g1 'noteqg 1, L1' noteql 1. In the dual virtual image mode, 0< g1'< f1,0< g'2< f2.
Since the pixel size x3 of the first virtual image v3 is larger than the pixel size x1 of the first real image v1, the pixel size of the final image of the virtual-real combination mode is smaller than the pixel size of the final image of the double virtual image mode, i.e., the resolution of the virtual-real combination mode is larger than the resolution of the double virtual image mode.
Fig. 7 shows a resolution enhancement data map of a display device provided in an embodiment of the present application. Let the focal length f1 of the lens structure in the dual virtual image mode and the virtual-real combined mode be f1, the focal length f2 of the main lens be f2, and g2=g2'. The final imaging plane position is the same, i.e. 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. 0< g1'< f1,0< g2' < f2 in the dual virtual image mode; in the virtual-real binding mode, f1< g1<2 x f1,0< g2< f2.
For example, when f1=5 mm, f2=65 mm, g2=g2 ' =61 mm, l2=l2 ' =1000 mm, let g1 be designed to be 3.8 mm to 4.6 mm, g1' =6 mm, respectively. As can be seen from the calculation, the resolution ratio of the virtual-real combination mode scheme to the double virtual image mode scheme between the final imaging planes is 1.9 to 5.6 times, respectively.
Referring to fig. 7, the abscissa is the first interval g1, and the ordinate is the ratio of the resolution of the final imaging of the virtual-real combination mode to the resolution of the final imaging of the dual virtual image mode. The ratio of resolution of the virtual-real combination mode scheme to that of the double virtual image mode scheme between the final imaging planes is 1.9 to 5.6 times respectively. For example, when g1 is 4.2 mm, the resolution ratio of the virtual-real combination mode scheme between the final imaging plane is 2.8 times as compared with the dual virtual image mode scheme, that is, the virtual-real combination mode of the present application can display improved display resolution.
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 pitch g1 is smaller than the second pitch g2.
In the present embodiment, the lens structure 120 is used to form a three-dimensional display on the screen of the display screen 11, and the focal length f1 of the lens structure ranges from 1 mm to 20 mm.
In the present embodiment, the main lens 13 is for magnifying a three-dimensional image, and the focal length f2 of the main lens ranges from 20 mm to 100 mm.
It should be noted that, the focal length f1 of the lens structure and the focal length f2 of the main lens may be adjusted according to the size of the display screen 11 and the position of the viewer, which is not limited in this application.
In the display device of the present application, the lens structure 120 is a strip-shaped convex lens, and a plurality of strip-shaped convex lenses are arranged along the first direction D1 and extend along the second direction D2; wherein the length of the short side of the strip-shaped convex lens in the first direction D1 is equal to an integer multiple of the width of the pixels in the display screen 11.
In this embodiment, the lens structure 120 may be a strip-shaped convex lens. The long axis direction of the strip-shaped convex lenses is the second direction D2, and the plurality of strip-shaped convex lenses are distributed along the first direction D1. The sectional shape of the strip-shaped convex lens in the direction perpendicular to the second direction D2 at least comprises a section of arc. The strip-shaped convex lens can be a plano-convex lens or a biconvex lens.
In general, a plurality of viewpoints needs to be provided in a horizontal direction of a three-dimensional display device to provide different viewers' views, and the number of viewpoints may be small in a vertical direction. Thus, in some embodiments, the first direction D1 may be a horizontal direction and the second direction D2 may be a vertical direction. Therefore, a plurality of viewpoints in the horizontal direction are realized, and the viewing requirements of a plurality of viewers are met.
In this embodiment, the side length of the strip-shaped convex lens in the first direction D1 is a short side. The length of the short sides of the strip-shaped lenticular lenses is equal to an integer multiple of the width of the pixels in the display screen 11. The width of a pixel refers to the size of the pixel in the first direction D1. Through the arrangement, a plurality of pixels can be converged and imaged through the same strip-shaped convex lens, and a three-dimensional effect can be observed by a single eye.
Optionally, in some embodiments, the second direction D2 forms an angle with the first direction D1 of 90 degrees. I.e. the first direction D1 is perpendicular to the second direction D2. For example, the first direction D1 may be a horizontal direction and the second direction D2 may be a vertical direction, but is not limited thereto.
Optionally, in some embodiments, the second direction D2 forms an angle with the first direction D1 that is greater than 0 degrees and less than 90 degrees. By the above arrangement, the optical interference between the display panel 11 and the microlens array 12 can be improved, and the moire phenomenon can be improved.
In the display device of the present application, the lens structure 120 is a convex lens, and the plurality of convex lenses are arranged along at least two directions, and the display screen 11 includes a plurality of pixels, where the convex lenses are aligned with the pixels.
In this embodiment, the lens structure 120 is a convex lens, and the convex lenses are arranged along at least two directions. The angle between the two directions may be greater than 0 degrees and less than or equal to 90 degrees. The convex lens may be a block-shaped convex lens, and a plurality of convex lenses are connected, so that the assembling process of the convex lens and the display screen 11 can be simplified.
The front projection of the convex lens on the display surface of the display screen 11 may be circular, rectangular, triangular, pentagonal, etc. The shape of the convex lens is not limited in this application. The lenticular lenses are positioned in register with the pixels, that is, the front projection of the lenticular lenses onto the display screen 11 is in register with the pixels, at least one pixel being located within the front projection of the lenticular lenses onto the display screen 11.
It should be appreciated that the shape of the convex lens may be adaptively set according to the shape of the pixel, such that the convex lens is positioned in alignment with the pixel.
The application also provides a display terminal, which comprises the display device.
In this embodiment, the display terminal may be: any product or component with display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, a VR device and the like.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The display device and the display terminal provided by the embodiments of the present application are described in detail, and specific examples are applied to illustrate the principles and the implementation of the present application, and the description of the above embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A display device, comprising:
a display screen;
the micro-lens array is positioned on one side of the display surface of the display screen and is opposite to the display screen, and the micro-lens array comprises a plurality of lens structures;
the distance between the display screen and the micro lens array is a first distance, and the first distance is larger than the focal length of the lens structure and smaller 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, one of the lens structures corresponding to at least one of the first pixels and one of the second pixels;
the light emitted by the first pixel is converged at a first view point through the lens structure, the light emitted by the second pixel is converged at a second view point through the lens structure, the first view point and the second view point are arranged at intervals, and the distance between the first view point and the second view point 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 of the lens structures corresponds to at least one of the third pixels and one of the fourth pixels, light emitted from the third pixel is converged by the lens structure at a third view point, light emitted from the fourth pixel is converged by the lens structure at a fourth view point, and the third view point and the fourth view point are spaced apart;
wherein a 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 a 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. A display device according to any one of claims 1 to 3, further comprising a main lens disposed on a side of the microlens array facing away from the display screen;
the micro lens array enables the image of the display screen to form a first real image, the main lens is located on one side, away from the micro lens array, of the first real image, the distance between the first real image and the main lens is a second distance, and the second distance is larger than zero and smaller than the focal length of the main lens.
5. The display device of claim 4, wherein a focal length of the lens structure is less than a focal length of the main lens, and wherein the first pitch is less than the second pitch.
6. The display device of claim 4, wherein the lens structure has a focal length in the range of 1 mm to 20 mm and the main lens has a focal length in the range of 20 mm to 100 mm.
7. The display device according to claim 1, wherein the lens structure is a stripe-shaped convex lens, and a plurality of the stripe-shaped convex lenses are arranged along a first direction and extend along a second direction;
in the first direction, the length of the short side of the strip-shaped convex lens is equal to an integral multiple of the width of the pixels in the display screen.
8. The display device of claim 7, wherein the second direction is at an angle greater than 0 degrees and less than or equal to 90 degrees from the first direction.
9. The display device according to claim 1, wherein the lens structure is a convex lens, a plurality of the convex lenses are arranged along at least two directions, the display screen includes a plurality of pixels, and the convex lenses are arranged in alignment with the pixels.
10. A display terminal comprising a display device according to any one of claims 1 to 9.
CN202311516945.4A 2023-11-13 2023-11-13 Display device and display terminal Pending CN117452661A (en)

Priority Applications (1)

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CN202311516945.4A CN117452661A (en) 2023-11-13 2023-11-13 Display device and display terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311516945.4A CN117452661A (en) 2023-11-13 2023-11-13 Display device and display terminal

Publications (1)

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CN117452661A true CN117452661A (en) 2024-01-26

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CN202311516945.4A Pending CN117452661A (en) 2023-11-13 2023-11-13 Display device and display terminal

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