Display panel for realizing lossless naked-eye 3D

Abstract

The utility model discloses a display panel for realizing lossless naked-eye 3D. The display panel comprises a display panel and a micro-lens array arranged on the light-emitting side of the display panel, the micro-lens array comprises two cylindrical lens layers arranged in the light emitting direction, transparent electrode layers are arranged on the outer sides of the two cylindrical lens layers respectively, a photoelectric refraction material layer is arranged between the two cylindrical lens layers, and photoelectric refraction materials have the first state and the second state which are the same as the refractive indexes of the two cylindrical lens layers respectively. According to the naked eye 3D display device, the light of the display panel is alternately projected to the eyes of a person through the lens array, so that the display panel alternately displays pictures of the left eye and the right eye, and naked eye 3D display with lossless resolution can be realized.

Description

Technical Field

[0001] This utility model relates to the field of naked-eye 3D display technology, and in particular to a display panel that realizes lossless naked-eye 3D. Background Technology

[0002] With the development of technology, people have higher and higher requirements for image display. Naked-eye 3D display technology has become a research hotspot in imaging technology because it can enable observers to obtain 3D visual effects without the need for external devices.

[0003] Currently, most glasses-free 3D displays use lenticular lenses, which project corresponding pixels for the left and right eyes separately through the refraction principle of the lens, achieving image separation. However, in the actual process of using lenticular lenses to achieve glasses-free 3D displays, the horizontal image resolution is often halved. Although increasing the number of pixels can reduce the impact of image resolution loss, the vertical image remains unaffected, leading to problems with the aspect ratio when displaying 3D images. Moreover, the resolution of display panels is nearing its limit in current technology, and it is impossible to endlessly increase pixel density. At the same time, increasing pixel density significantly increases the optical design difficulty of 3D displays and also greatly affects the manufacturing yield, resulting in a substantial increase in cost and unsatisfactory 3D display effects. At present, gaming monitors and high refresh rate monitors are also under development. The human eye has a limit to its perception of refresh rate, and in 3D displays, reducing the refresh rate and increasing the display resolution is a better solution. Summary of the Invention

[0004] Purpose of the invention: To address the above-mentioned shortcomings, this utility model proposes a display panel that enables lossless naked-eye 3D. By using a lens array, the light from the display panel is alternately projected onto the user's two eyes, thereby enabling the display panel to alternately display images for the left and right eyes.

[0005] Technical solution:

[0006] This utility model provides a display panel for realizing lossless naked-eye 3D, including a display panel and a microlens array disposed on the light-emitting side of the display panel;

[0007] The microlens array includes two cylindrical lens layers arranged along the light-emitting direction, a transparent electrode layer arranged on the outer side of each cylindrical lens layer, and a photoelectric refractive material layer disposed between the two cylindrical lens layers. The photoelectric refractive material has a first state and a second state with the same refractive index as the two cylindrical lens layers, respectively.

[0008] Specifically, the photoelectric refractive material layer also has a third state that is different from the refractive index of both cylindrical lens layers.

[0009] Specifically, one of the two transparent electrode layers is an applied layer and the other is a grounded layer.

[0010] Specifically, the microlens array is configured as two, and each microlens array includes a first transparent electrode layer, a cylindrical lens layer and a second transparent electrode layer arranged sequentially along the light emission direction;

[0011] The first transparent electrode layer is disposed on one side of the plane of the cylindrical lens layer;

[0012] The second transparent electrode layer is disposed on one side of the curved surface of the cylindrical lens layer and has a predetermined interval with the cylindrical lens layer, and the photoelectric refractive material layer is disposed in the predetermined interval.

[0013] More specifically, the photoelectric refractive material in each microlens array has a first state of discharge and a second state of charge, wherein the first state has a first refractive index and the second state has a second refractive index, the first refractive index being the same as the refractive index of the cylindrical lens layer in the microlens array, and the second refractive index being different from the refractive index of the cylindrical lens layer in the microlens array.

[0014] More specifically, the second transparent electrode layers of the first microlens array and the second microlens array are configured as the same layer and grounded.

[0015] More specifically, a pixel structure is provided between the display panel and the microlens array. The cylindrical lens length direction of the cylindrical lens layer in the first microlens array has a first angle α with the long side direction of the pixel structure, and the cylindrical lens length direction of the cylindrical lens layer in the second microlens array has a second angle β with the long side direction of the pixel structure, and α = -β.

[0016] Specifically, one of the cylindrical lenses in the two cylindrical lens layers is underfocused, and the other is overfocused.

[0017] More specifically, the focal lengths of the cylindrical lenses in the two cylindrical lens layers are f1 and f2, respectively, and their distances from the light-emitting surface of the display panel are d1 and d2, respectively, where d1>d2, then d1≥1.1f1, d2≤0.9f2.

[0018] Specifically, the display panel is a high refresh rate display panel with a refresh rate higher than 120Hz.

[0019] Beneficial effects: This utility model uses a lens array to alternately project the light from the display panel onto the human eyes, so that the display panel can alternately display the images for the left and right eyes, thus achieving naked-eye 3D display without loss of resolution. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a stereoscopic view of a display panel for realizing lossless naked-eye 3D according to an embodiment of the present invention.

[0022] Figure 2 This is a side view of a display panel for realizing lossless naked-eye 3D according to an embodiment of the present invention;

[0023] Figure 3 This is an example diagram of the cylindrical lens layer of this utility model.

[0024] Wherein, 1 is the microlens array, 2 is the pixel structure, and 3 is the display panel;

[0025] 11 is the first transparent electrode layer, 12 is the cylindrical lens layer, 13 is the second transparent electrode layer, 14 is the photoelectric refractive material layer, and 15 is the substrate. Detailed Implementation

[0026] To make the objectives, technical solutions and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0028] The present invention provides a display panel for achieving lossless naked-eye 3D, comprising a display panel and a microlens array disposed on the light-emitting side of the display panel; wherein, the microlens array is used to alternately project the light from the display panel onto the human eyes, so as to realize that the display panel alternately displays the images for the left and right eyes.

[0029] In this invention, the microlens array includes two cylindrical lens layers arranged along the light emission direction, and a transparent electrode layer arranged on the outer side of each cylindrical lens layer. One of the two transparent electrode layers is a charged layer and the other is a grounded layer. A photoelectric refractive material layer is disposed between the two cylindrical lens layers. The photoelectric refractive material layer has a first state and a second state with the same refractive index as the two cylindrical lens layers, and a third state with a different refractive index from both cylindrical lens layers.

[0030] In this invention, the aforementioned settings reduce the requirements for the deflection speed of the photoelectric refractive material in the photoelectric refractive material layer, thus lowering costs. This invention can achieve a 50% refresh rate loss by changing the state of the photoelectric refractive material layer, turning the two cylindrical lens layers on and off respectively. This allows the left and right eye images to be displayed in two frames, achieving lossless 3D image resolution. Alternatively, by changing the state of the photoelectric refractive material layer and turning off both cylindrical lens layers, the displayed 2D image resolution is also lossless. In this embodiment, the display panel can display both 2D and 3D images, and can also achieve lossless 2D image display. Furthermore, only one electric field is generated between the two transparent electrode layers in this invention, and the electric fields do not interfere with each other, resulting in a purer 3D display image.

[0031] In this invention, the photoelectric refractive material layer may have only a first state and a second state with the same refractive index as the two cylindrical lens layers, thus achieving lossless display of 3D image resolution, and only achieving lossless display of 3D image resolution.

[0032] In this invention, the cylindrical lenses in the two cylindrical lens layers can be either convex or concave lenses. Specifically, when the cylindrical lens in one cylindrical lens layer is a convex lens, the cylindrical lens in the other cylindrical lens layer is a concave lens.

[0033] In this invention, one of the cylindrical lenses in the two cylindrical lens layers is underfocused and the other is overfocused, thereby minimizing the moiré pattern problem in 3D display.

[0034] Specifically, the focal lengths of the cylindrical lenses in the two cylindrical lens layers are f1 and f2, respectively, and their distances from the light-emitting surface of the display panel are d1 and d2, respectively. Where d1>d2, then d1≥1.1f1 and d2≤0.9f2 must be satisfied.

[0035] More specifically, d1-f1=f2-d2.

[0036] More specifically, f1 = f2.

[0037] In this invention, the display panel is a high refresh rate display panel with a refresh rate higher than 120Hz.

[0038] In this invention, the photoelectric refractive material is a high-speed deflection liquid crystal. Furthermore, the photoelectric refractive material can be the same liquid crystal material as the display panel.

[0039] In another embodiment of this utility model, refer to Figure 1 , 2 The microlens array 1 can be configured as two arrays, arranged sequentially along the light emission direction, including a first microlens array and a second microlens array. The first microlens array projects all the light from the display panel 3 into one eye of the person, and the second microlens array projects all the light from the display panel 3 into the other eye of the person. The two arrays work alternately every other frame to achieve alternating projection, thereby enabling the display panel 3 to alternately display the images of the left and right eyes, thus enabling the left and right eyes of the person to alternately receive the entire image of the display panel 3.

[0040] In this embodiment, we continue to refer to... Figure 1 , 2 Each microlens array includes a first transparent electrode layer 11, a cylindrical lens layer 12, and a second transparent electrode layer 13 arranged sequentially along the light emission direction; wherein, the first transparent electrode layer 11 is disposed on one side of the plane of the cylindrical lens layer 12, and the second transparent electrode layer 13 is disposed on one side of the curved surface of the cylindrical lens layer 12, and has a predetermined interval with the cylindrical lens layer 12, and photoelectric refractive material is disposed in the predetermined interval to form a photoelectric refractive material layer 14.

[0041] In this embodiment, the second transparent electrode layer of the first microlens array and the second transparent electrode layer of the second microlens array can be respectively disposed on both sides of the substrate 15.

[0042] In this embodiment, the photoelectric refractive material in each microlens array has a first state of discharge and a second state of charge. The first state has a first refractive index and the second state has a second refractive index. The first refractive index is the same as the refractive index of the cylindrical lens layer in the microlens array, and the second refractive index is different from the refractive index of the cylindrical lens layer in the microlens array.

[0043] Preferably, the second transparent electrode layer of the first microlens array and the second transparent electrode layer of the second microlens array can be set as the same layer, and the second transparent electrode layer is grounded. With this design, this embodiment can reduce the transparent electrode layer in structure, thereby reducing the thickness of the display.

[0044] In this utility model, reference continues to be made to... Figure 1 , 2 A pixel structure 2 is also provided between the display panel 3 and the microlens array 1. To ensure a simpler software layout algorithm, maximize computational efficiency, and reduce resource consumption, the major axis direction of the pixel structure 2 is defined as the first direction, and the minor axis direction is defined as the second direction. The length direction of the cylindrical lens in the first microlens array has a first angle α with the first direction. Figure 3 As shown, the cylindrical lens length direction of the cylindrical lens layer in the second microlens array has a second angle β with the first direction, and α = -β. That is, when viewed from the direction perpendicular to the pixel structure, the cylindrical lens layers in the two microlens arrays have opposite tilt angles relative to the first direction. Therefore, in the subsequent software image arrangement algorithm, the corresponding rules can be obtained according to the aforementioned structural design to perform fast image arrangement.

[0045] This invention utilizes two lens layers to project the corresponding image onto the left and right eyes of the viewer, respectively. The image to be displayed to the left and right eyes is alternately displayed in two frames. By changing the state of the photoelectric refractive material, the two lens layers can be turned on and off, achieving lossless naked-eye 3D display while sacrificing half the refresh rate. Furthermore, by changing the state of the photoelectric refractive material, the two lens layers can also be turned off, in which case the display panel can display 2D images with lossless resolution.

[0046] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of the present invention as described above, which are not provided in the details for the sake of brevity.

[0047] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this utility model should be included within the protection scope of this utility model.

Claims

1. A display panel for implementing lossless naked-eye 3D, characterized by, Includes a display panel and a microlens array disposed on the light-emitting side of the display panel; The microlens array includes two cylindrical lens layers arranged along the light-emitting direction, a transparent electrode layer arranged on the outer side of each cylindrical lens layer, and a photoelectric refractive material layer disposed between the two cylindrical lens layers. The photoelectric refractive material has a first state and a second state with the same refractive index as the two cylindrical lens layers, respectively.

2. The display panel for achieving lossless naked 3D according to claim 1, wherein, The photoelectric refractive material layer also has a third state that is different from the refractive index of the two cylindrical lens layers.

3. The display panel for achieving lossless naked 3D according to claim 1, wherein, Of the two transparent electrode layers, one is an applied layer and the other is a grounded layer.

4. The display panel for achieving lossless naked-eye 3D according to claim 1, characterized in that, The microlens array is configured as two, and each microlens array includes a first transparent electrode layer, a cylindrical lens layer and a second transparent electrode layer arranged sequentially along the light emission direction. The first transparent electrode layer is disposed on one side of the plane of the cylindrical lens layer; The second transparent electrode layer is disposed on one side of the curved surface of the cylindrical lens layer and has a predetermined interval with the cylindrical lens layer, and the photoelectric refractive material layer is disposed in the predetermined interval.

5. The display panel for achieving lossless naked 3D according to claim 4, wherein, Each microlens array has a first state of discharge and a second state of charge. The first state has a first refractive index and the second state has a second refractive index. The first refractive index is the same as the refractive index of the cylindrical lens layer in the microlens array, and the second refractive index is different from the refractive index of the cylindrical lens layer in the microlens array.

6. The display panel for achieving lossless naked 3D according to claim 4, wherein, The second transparent electrode layers of the two microlens arrays are configured as the same layer and grounded.

7. The display panel for achieving lossless naked 3D according to claim 4, wherein, A pixel structure is provided between the display panel and the microlens array. In the first microlens array, the length direction of the cylindrical lens layer of the cylindrical lens layer has a first angle α with the long side direction of the pixel structure. In the second microlens array, the length direction of the cylindrical lens layer of the cylindrical lens layer has a second angle β with the long side direction of the pixel structure, and α = -β.

8. The display panel for achieving lossless naked 3D according to any one of claims 1-7, wherein, One of the cylindrical lenses in the two cylindrical lens layers is underfocused, and the other is overfocused.

9. The display panel for achieving lossless naked 3D according to claim 8, wherein, focal lengths of the cylindrical lenses in the two cylindrical lens layers are f 1 and f 2, respectively, and distances from the light emitting surface of the display panel are d 1 and d 2, respectively, wherein d 1> d 2, then d 1≥1.1 f 1, d 2≤0.9 f 2.

10. The display panel for achieving lossless naked 3D of claim 1, wherein, The display panel is a high refresh rate display panel with a refresh rate higher than 120Hz.

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