Display panel and display device

Abstract

The present application relates to a display panel and a display device. The display panel includes an anti-reflection structure layer, and the anti-reflection structure layer includes an anti-reflection film layer, which includes a plurality of refraction units and a plurality of light-shielding units that are arranged in an array and alternately distributed; and a total reflection layer. A part of the ambient light is refracted by the refraction units and reaches the total reflection layer, and then is reflected to the corresponding light-shielding units; the remaining ambient light is absorbed by the light-shielding units. The refraction units can convert the ambient light into more collimated light and directly incident into the display panel, significantly reducing the reflection loss of light in the film layer. Moreover, the total reflection layer can redirect and reuse the ambient light that originally perpendicularly enters the display panel and may be lost, and is absorbed by the light-shielding units, effectively solving the adverse effect of the reflected light on the display effect, improving the overall display brightness of the display panel, and bringing a brighter and clearer visual experience to users.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display panel and a display device. Background Art

[0002] In the field of display technologies, end customers have put forward higher requirements for the optical performance of display panels. However, during the actual use of a display panel, after external environmental light is incident on the display panel, it will undergo multiple refractions and reflections on the surfaces of its internal optical components (such as transparent conductive layers, backlight modules, etc.). Such reflected light is superimposed on the display light emitted by the display panel itself, easily leading to problems such as a decrease in the contrast ratio of the picture, color distortion, and glare, severely restricting the optimization of the display effect.

[0003] To reduce the impact of ambient light reflection on the display effect, existing technologies usually set an anti-reflection film (Anti-Reflection Film) in the display device. This anti-reflection film forms a multi-layer structure by alternately stacking high-refractive-index materials and low-refractive-index materials, and uses the optical path difference principle to cancel out the interference of incident light of a specific wavelength, thereby reducing the reflectivity. However, such anti-reflection films have the following defects. First, the reflectivity suppression effect is limited. Limited by the refractive index range of the materials and the matching accuracy of the film layer thickness, the reduction amplitude of the reflectivity of broadband ambient light is insufficient, making it difficult to cope with complex lighting scenarios. Second, the optical side effects are significant: the multi-layer film structure is prone to introducing additional hue shifts (such as color bias towards blue or yellow), and may reduce the transmittance of the display light, resulting in damage to the display brightness and color gamut performance. Summary of the Invention

[0004] This application provides a display panel and a display device, which can maintain or improve the color performance of the display panel, thereby providing users with a clearer, more vivid, and more comfortable visual experience.

[0005] In a first aspect, this application provides a display panel, including an anti-reflection structure layer, and the anti-reflection structure layer includes:

[0006] An anti-reflection film layer, including a plurality of refraction units and a plurality of light-shielding units that are arranged in an array and alternately distributed; and

[0007] A total reflection layer, a part of the ambient light is guided by the refraction unit and reaches the total reflection layer, and then is reflected to the corresponding light-shielding unit; the remaining light of the ambient light is absorbed by the light-shielding unit.

[0008] In a possible implementation, the refraction unit includes a first light guiding surface and a second light guiding surface, the first light guiding surface has a first preset angle with the plane where the total reflection layer is located, and the second light guiding surface has a second preset angle with the plane where the total reflection layer is located;

[0009] After a part of the ambient light reaches the first light guiding surface, it is refracted to the second light guiding surface and then reflected by the second light guiding surface to the total reflection layer.

[0010] In a possible implementation, the range of the first preset angle and / or the second preset angle is 45° - 75°.

[0011] In a possible implementation, the refraction unit includes a third refraction surface, and the third refraction surface is a curved surface structure that is concave toward the total reflection layer.

[0012] In a possible implementation, the total reflection layer includes a first transparent body and two second transparent bodies, and the two second transparent bodies are symmetrically arranged on both sides of the first transparent body;

[0013] The light refracted by the refraction unit reaches one of the second transparent bodies after passing through the first transparent body, is reflected by it to the other second transparent body, and then is reflected by it to the corresponding light shielding unit.

[0014] In a possible implementation, the first transparent body is made of a solid transparent material; or, the first transparent body is composed of a liquid transparent material filled between the two second transparent bodies.

[0015] In a possible implementation, the refractive index of the first transparent body is greater than that of the second transparent body.

[0016] In a possible implementation, the orthographic projection area of the second transparent body coincides with the orthographic projection area of the light shielding unit; the height of the second transparent body is the same as the width of the plane where the light shielding unit is located.

[0017] In a possible implementation, the light shielding unit is a black matrix structure.

[0018] In a possible implementation, the display panel includes a backlight structure layer and a display structure layer, the display structure layer is stacked on the backlight structure layer, and the anti-reflection structure layer is stacked on the display structure layer.

[0019] In a possible implementation, the display structure layer is provided with a light shielding portion, and the orthographic projection area of the light shielding portion coincides with the orthographic projection area of the light shielding unit.

[0020] In a second aspect, the present application provides a display device, including a liquid crystal cell and the display panel as described in the first aspect, and the display panel is stacked on the liquid crystal cell.

[0021] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0022] The display panel and the display device provided by the embodiments of the present application can convert ambient light into more collimated light through the refraction unit and directly incident into the display panel, significantly reducing the reflection loss of light in the film layer. Moreover, through the total reflection layer, the ambient light that is originally vertically incident into the display panel and may be lost can be redirected and reused, and absorbed by the light shielding unit, effectively solving the adverse effect of the reflected light on the display effect, improving the overall display brightness of the display panel, and bringing a brighter and clearer visual enjoyment to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present invention and, together with the specification, used to explain the principles of the present invention.

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0026] Figure 1 It is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0027] Figure 2 It is a schematic optical path diagram of a display panel provided by an embodiment of the present application;

[0028] Figure 3 It is a schematic structural diagram of a display panel provided by an embodiment of the present application;

[0029] Figure 4 It is a schematic optical path diagram of a display panel provided by an embodiment of the present application.

[0030] Description of the reference numerals in the drawings:

[0031] 1. Anti-reflection structure layer; 11. Anti-reflection film layer; 111. Refraction unit; 1111. First light guiding surface; 1112. Second light guiding surface; 1113. First refractor; 1114. Second refractor; 1115. Third refraction surface; 112. Light shielding unit; 12. Total reflection layer; 121. First transparent body; 122. Second transparent body; 2. Display structure layer; 21. Light shielding portion; 3. Backlight structure layer. Detailed implementation manners

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the protection scope of the present application.

[0033] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0034] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or attitude change or movement state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "on other elements or features". Therefore, the exemplary term "below" can include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0035] In some exemplary embodiments, such as Figures 1 - 4As shown in the figure, a display panel includes an anti-reflection structure layer 1. The anti-reflection structure layer 1 realizes the suppression of ambient light reflection and the improvement of backlight utilization efficiency through the synergistic effect of optical path regulation and energy absorption.

[0036] The anti-reflection structure layer 1 is composed of two composite layers, and the anti-reflection structure layer 1 includes an anti-reflection film layer 11 and a total reflection layer 12. The anti-reflection film layer 11 is located on the incident side of ambient light and adopts a periodic micro-nano array structure, including refractive units 111 and light-shielding units 112 arranged alternately.

[0037] The refractive unit 111 is composed of a high refractive index dielectric material (such as TiO2, n>2.0), and is in the shape of a sub-wavelength grating or a microlens. Its surface curvature and period Λ (usually 100-500nm) are optimized to make the specific angle components in the incident ambient light refract efficiently.

[0038] It is composed of a low refractive index light-absorbing material, and its surface is a diffuse reflection or black body structure, which is used to absorb non-collimated light, such as a black matrix structure. By adjusting the energy band structure (such as doping concentration) of the light-absorbing material in the light-shielding unit 112, short-wave blue light below 450nm can be selectively absorbed, improving the display color gamut (NTSC color gamut is increased by about 5%) while reducing reflection, and realizing color shift suppression.

[0039] The total reflection layer 12 is located below the anti-reflection film layer 11 and is composed of a high-reflection metal or a distributed Bragg reflector. Its function is to totally reflect the collimated light transmitted by the refractive unit 111 and direct it to the light-shielding unit 112.

[0040] When ambient light is incident on the anti-reflection structure layer 1, the light rays in the incident light that meet the critical angle condition of the refractive unit 111 (θ<arcsin(n2 / n1), n1 is the refractive index of air) are refracted into approximately collimated light (divergence angle <±5°), vertically pass through the anti-reflection film layer 11 and reach the total reflection layer 12. The total reflection layer 12 reflects the collimated light back to the light-shielding unit 112, and the secondary reflection of this part of the light is eliminated through the absorption of the light-shielding unit 112.

[0041] Some of the incident light rays directly irradiate the surface of the light-shielding unit 112, and are finally absorbed after multiple diffuse reflections, preventing them from entering the display panel to form interference.

[0042] The anti-reflection film layer 11 is prepared by nanoimprinting or laser interference lithography technology. By controlling the height difference (Δh = 50-150nm) between the refractive unit 111 and the light-shielding unit 112 through a gray-scale mask, the phase matching accuracy is ensured.

[0043] If the total reflection layer 12 is a metal reflection layer, it is deposited by magnetron sputtering; if it is a distributed Bragg reflector structure, SiO2 (n≈1.46) and TiO2 (n≈2.35) are alternately evaporated 3-5 pairs each, and the total thickness is controlled within 1.2-1.5 μm. Of course, it can be understood that the above formation method and thickness are only for illustrative purposes and do not limit the present application.

[0044] In this embodiment, through the collaborative design of refraction-reflection-absorption, the ambient light reflectivity is reduced from 2% of the traditional anti-reflection film to below 0.8%, while achieving a double improvement in display brightness and color performance, effectively solving the contradiction between reflection suppression and light energy utilization in the prior art. Compared with the film stack idea in the related art, the display panel in this embodiment realizes the wavefront control of the incident ambient light by integrating specific arranged microstructures (such as sub-wavelength gratings, microlens arrays, etc.) on the surface or inside of the display panel. On the one hand, the microstructures can convert the incident light at different angles in natural light into an approximately collimated light state, significantly reducing the number and intensity of its reflections inside the display panel (such as at the interfaces of the ITO transparent electrode layer, backlight module BLU, etc.); on the other hand, the light is all reflected and will not enter the lower layer structure of the display panel, improving the backlight utilization rate through optical path optimization, so as to indirectly enhance the display brightness while reducing the ambient light interference. This design takes into account both reflection suppression and light energy utilization, effectively improving the optical performance of the display panel.

[0045] In this embodiment, as Figures 1 - 4 shown, the anti-reflection structure layer 1 is used to direct the ambient light to convert the incident light into an approximately collimated light state.

[0046] First example

[0047] As Figures 1 - 2 shown, the refraction unit 111 includes, for example, a plurality of first refraction bodies 1113, each first refraction body 1113 is arranged adjacent to each other, and each first refraction body 1113 is, for example, in the shape of a triangular prism, so that the refraction unit 111 has a first light guiding surface 1111 and a second light guiding surface 1112. There is a first preset angle α between the first light guiding surface 1111 and the plane where the total reflection layer 12 is located, and there is a second preset angle β between the second light guiding surface 1112 and the plane where the total reflection layer 12 is located. Among them, the range of the first preset angle α is, for example, 45°-75°, and the range of the second preset angle β is, for example, 45°-75°, ensuring that the light can be approximately collimated into the total reflection layer 12.

[0048] After a part of the ambient light reaches the first light guiding surface 1111, it is refracted to the second light guiding surface 1112 and reflected by the second light guiding surface 1112 to the total reflection layer 12. Among them, the second light guiding surface 1112 is a total reflection surface. For example, the ambient light is incident on the first light guiding surface 1111 at an angle of θ < arcsin(n1 / n2) (n1 is the refractive index of air ≈ 1, and n2 is the refractive index of the refracting body material), and after refraction, it reaches the second light guiding surface 1112. Due to the high reflection characteristics of the coating, it is totally reflected and guided as approximately collimated light, vertically passing through the anti-reflection film layer 11 and reaching the total reflection layer 12. The total reflection layer 12 reflects the collimated light back to the light shielding unit 112, and the secondary reflection of this part of the light is eliminated through the absorption effect of the light shielding unit 112.

[0049] The large-angle light rays (θ ≥ arcsin(n2 / n1)) in the incident light that do not satisfy the refraction condition are directly irradiated onto the surface of the light shielding unit 112, and are finally absorbed after multiple diffuse reflections, preventing them from entering the display panel and causing interference.

[0050] Through the collaborative design of the high-refractive-index transparent polymer and the periodic triangular prism structure, the critical angle is effectively increased, enabling the ambient light to be refracted rather than totally reflected within a wide incident angle range, significantly reducing the surface reflection loss, and remarkably enhancing the display contrast and color saturation.

[0051] The second light guiding surface 1112 uses a total reflection coating, combined with a 45° incident angle design, to ensure that the refracted light enters the total reflection layer 12 vertically after total reflection, and then is guided to the light shielding unit 112 through the secondary reflection mechanism, forming a closed optical path of "refraction - total reflection - re-reflection", further reducing the stray light leakage and improving the light absorption efficiency.

[0052] Second Example

[0053] As Figures 3 - 4 shown, the refraction unit 111 includes, for example, a second refracting body 1114, and the second refracting body 1114 is, for example, a concave lens structure, such that the refraction unit 111 has a third refracting surface 1115, and the third refracting surface 1115 is a curved surface structure that is concave towards the total reflection layer 12.

[0054] When the ambient light is incident on the concave surface, it is refracted and focused, passes through the anti-reflection film layer 11, and vertically enters the total reflection layer 12. The concave lens structure realizes the light energy collection within the incident angle range of ±60°, and the utilization rate is increased by 50% compared with the planar structure. The gradient refractive index material reduces the interface reflection and eliminates the ghosting phenomenon.

[0055] In this embodiment, through the concave lens focusing path, an ultra-low reflectivity is achieved. Combined with the matching design of the light shielding unit 112, the display brightness loss is < 2%, which is suitable for outdoor high-brightness display scenarios.

[0056] In this embodiment, as Figures 1 - 4 shown, through the collaborative design of the multilayer reflection unit and the light-shielding unit 112 in the antireflection structure layer 1, combining the microprism structure and the total reflection law, the efficient regulation and absorption of ambient light are achieved.

[0057] Among them, the total reflection layer 12 includes, for example, a first transparent body 121 and two second transparent bodies 122. The two second transparent bodies 122 are symmetrically arranged on both sides of the first transparent body 121 in the thickness direction of the display panel, and the first transparent body 121 and the two second transparent bodies 122 are spliced and connected. Both the first transparent body 121 and the second transparent body 122 are triangular transparent structures, so that the total reflection layer 12 forms a sandwich splicing design of the second transparent body 122, the first transparent body 121, and the second transparent body 122.

[0058] The first transparent body 121 is located in the middle layer and is composed of a low-refractive-index transparent material (such as magnesium fluoride, n2 = 1.38) or a liquid transparent medium (such as a refractive index matching liquid, n2 = 1.35 - 1.40), and its thickness T1 = 50 - 100 nm.

[0059] The second transparent bodies 122 are symmetrically distributed on both sides of the first transparent body 121 and are made of a high-refractive-index transparent material (such as silicon nitride, n1 = 1.9 - 2.0), and the thickness T2 = 80 - 120 nm.

[0060] The refractive index relationship between the first transparent body 121 and the second transparent body 122: satisfies n1 > n2 (in this embodiment, n1 = 1.414n2 is taken) to ensure that total reflection occurs at the interface between the first transparent body 121 and the second transparent body 122.

[0061] The light refracted by the refraction unit 111 reaches one of the second transparent bodies 122 after passing through the first transparent body 121, is reflected by it to the second transparent body 122, and is reflected by the second transparent body 122 to the corresponding light-shielding unit 112.

[0062] Among them, the orthographic projection area of the second transparent body 122 coincides with the orthographic projection area of the light-shielding unit 112, and the height of the second transparent body 122 is the same as the width of the plane where the light-shielding unit 112 is located.

[0063] That is, the antireflection film layer 11 is composed of the refraction unit 111 and the light-shielding unit 112, and the widths of the two are the same, effectively reducing the reflected light. The ambient light enters the total reflection layer 12 through the refraction unit 111, and after total reflection, enters the light-shielding unit 112, achieving antireflection. The orthographic projection of the light-shielding unit 112 completely coincides with the second transparent body 122 to ensure that the reflected light is completely absorbed. The second transparent body 122 adopts an isosceles right triangle design, the width of the right-angle side is W, and the hypotenuse surface is a total reflection surface, forming a 45° angle with the first transparent body 121.

[0064] Light is incident on the hypotenuse of the micro - prism at an angle θ < arcsin(n1 / n2). After two - stage guiding, collimated light is formed and perpendicularly passes through the first transparent body 121. When the collimated light reaches the first transparent body 121, the light is guided to the second transparent body 122. The incident angle is 45°, and total internal reflection occurs. The second transparent body 122 reflects the light to the corresponding light - shielding unit 112, and after absorption, the reflection is eliminated. Light directly irradiates the light - shielding unit 112 at an angle θ ≥ arcsin(n1 / n2), and after multiple diffuse reflections, it is absorbed, preventing it from entering the interior of the display panel. The anti - reflection film layer 11 and the total internal reflection layer 12 are arranged in combination, which can greatly improve the reflection degree of external ambient light.

[0065] In this embodiment, through the collaborative design of the total internal reflection layer 12 with refractive index matching and the micro - prism - light - shielding unit 112, the average reflectance is < 0.4% in a specific wavelength band, while ensuring the display brightness and color purity. Compared with traditional anti - reflection films, its reflectance is reduced by more than 60%, and no additional color compensation layer is required, significantly simplifying the optical structure of the display panel.

[0066] In this embodiment, as Figures 1 - 4 shown, the display panel adopts a multi - layer composite structure. The display panel further includes a display structure layer 2 and a backlight structure layer 3. The anti - reflection structure layer 1, the display structure layer 2, and the backlight structure layer 3 are sequentially arranged from top to bottom. That is, the display structure layer 2 is stacked above the backlight structure layer 3, and the anti - reflection structure layer 1 is stacked on top of the display structure layer 2.

[0067] The display structure layer 2 specifically adopts a (Liquid Crystal Display, abbreviated as LCD) structure, that is, a flat panel display. This structure can realize the display control of images based on the electro - optical effect of liquid crystals.

[0068] The backlight structure layer 3 adopts a backlight structure, and its function is to provide a uniform surface light source for the display structure layer 2, ensuring that the display screen has good brightness and uniformity.

[0069] In this embodiment, as Figures 1 - 4 shown, the light - shielding unit 112 is provided in the anti - reflection structure layer 1, and the light - shielding portion 21 is provided in the display structure layer 2. The orthographic projection area of the light - shielding portion 21 coincides with the orthographic projection area of the light - shielding unit 112. The main purpose of this design is to avoid the light - shielding unit 112 from blocking the display light and ensure the normal emission of the display light.

[0070] Since the light-shielding unit 112 itself will have a certain impact on the emission of the display light, in order to reduce its absorption of the display light, the light-shielding unit 112 is designed with intervals and is made to correspond one by one with the light-shielding portions 21 in the underlying display structure layer 2. At the same time, the widths of the light-shielding unit 112 and the light-shielding portions 21 are kept consistent. Through this design, it can be ensured that the display light only exits through the micro-prism area, effectively reducing the attenuation of the display brightness by the light-absorbing material, having a relatively small impact on the transmittance of the display itself, and not affecting the normal light emission and display of the display panel, thereby improving the display effect and brightness uniformity of the display panel.

[0071] The anti-reflection structure layer 1 further includes a total reflection layer 12. The total reflection layer 12 can reflect the collimated light, which is then absorbed by the light-shielding unit 112 and cannot exit to the display structure layer 2, greatly improving the degree of reflection of the external ambient light.

[0072] Through the collaborative design and optimization of each layer structure of the display panel in this embodiment, the purposes of anti-reflection, improving the display brightness and light utilization efficiency are achieved, and it has good display effects and performance.

[0073] As Figures 1 - 4 shown, the present application also provides a display device, including a liquid crystal cell and the display panel in the above embodiment, and the display panel is laminated on the liquid crystal cell.

[0074] During the actual assembly process, the display panel and the liquid crystal cell are accurately aligned and bonded to ensure that each layer structure of the display panel can work in coordination with the liquid crystal cell. The backlight structure layer 3 of the display panel provides a light source for the liquid crystal cell, the display structure layer 2 realizes the display of images under the control of the liquid crystal cell, and the anti-reflection structure layer 1 reduces the reflection of external light, improving the contrast and clarity of the display picture.

[0075] Through this laminated arrangement, the display device can make full use of the performance advantages of the display panel to achieve high-quality image display. At the same time, the tight combination of the display panel and the liquid crystal cell also ensures the overall stability and reliability of the display device, providing a good visual experience for users.

[0076] Through the reasonable structural design and laminated arrangement of the display device of the present application, the purposes of anti-reflection, improving the display brightness and light utilization efficiency are achieved, and it has good display effects and performance.

[0077] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an" and "the" as used herein may also include the plural. The terms "comprising", "including", "containing" and "having" are inclusive and thus specify the presence of stated features, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0078] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein. Thus, the first element, component, region, layer or section discussed below may be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0079] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A display panel, characterized in that, Comprising an anti-reflection structure layer, the anti-reflection structure layer comprising: An anti-reflection film layer, including a plurality of refraction units and a plurality of light-shielding units which are arranged in an array and alternately distributed; and A total reflection layer, a part of the ambient light is guided by the refraction unit, and after reaching the total reflection layer, is reflected to the corresponding light-shielding unit; The refraction unit includes a first light guiding surface and a second light guiding surface, the second light guiding surface is a total reflection surface, the first light guiding surface has a first preset angle with the plane where the total reflection layer is located, and the second light guiding surface has a second preset angle with the plane where the total reflection layer is located; The light in the ambient light that meets the critical angle condition of the refraction unit is refracted to the second light guiding surface after reaching the first light guiding surface, and is reflected to the total reflection layer by the second light guiding surface; the light in the ambient light that does not meet the critical angle condition of the refraction unit is directly irradiated onto the surface of the light-shielding unit and is absorbed by the light-shielding unit.

2. The display panel according to claim 1, wherein The range of the first preset angle and / or the second preset angle is 45° - 75°.

3. The display panel according to claim 1, wherein The total reflection layer includes a first transparent body and two second transparent bodies, and the two second transparent bodies are symmetrically arranged on both sides of the first transparent body; The light refracted by the refraction unit reaches one of the second transparent bodies after passing through the first transparent body, is reflected by it to the other second transparent body, and is reflected by it to the corresponding light-shielding unit.

4. The display panel according to claim 3, wherein The first transparent body is made of a solid transparent material; or, the first transparent body is composed of a liquid transparent material filled between the two second transparent bodies.

5. The display panel according to claim 3, wherein The refractive index of the first transparent body is greater than the refractive index of the second transparent body.

6. The display panel according to claim 3, characterized in that, The orthographic projection area of the second transparent body coincides with the orthographic projection area of the light-shielding unit; the height of the second transparent body is the same as the width of the plane where the light-shielding unit is located.

7. The display panel according to claim 1, wherein The light-shielding unit is a black matrix structure.

8. The display panel according to claim 1, characterized in that, The display panel includes a backlight structure layer and a display structure layer, the display structure layer is laminated on the backlight structure layer, and the anti-reflection structure layer is laminated on the display structure layer.

9. The display panel according to claim 8, wherein, The display structure layer is provided with a light-shielding portion, and the orthographic projection area of the light-shielding portion coincides with the orthographic projection area of the light-shielding unit.

10. A display device, characterized in that, Including a liquid crystal cell, a display panel according to any one of claims 1-9, the display panel is laminated on the liquid crystal cell.

Images