Display panel and display device

Abstract

This application provides a display panel and a display device. The display panel includes: a substrate; a plurality of light-emitting units located on one side of the substrate; a plurality of lens units correspondingly disposed above the light-emitting sides of the plurality of light-emitting units; the surface of the lens unit includes a first region and a second region located around the first region; wherein the surface of the lens unit is provided with a plurality of micro-patterns, including a plurality of first micro-patterns located in the first region and a plurality of second micro-patterns located in the second region; the arrangement density of the first micro-patterns is greater than the arrangement density of the second micro-patterns. This display panel can improve the overall brightness of the display panel and improve the brightness uniformity of the display panel, thereby optimizing the display effect of the display panel.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] In the development of modern display technology, micro light-emitting diode (Micro LED) displays have become the focus of next-generation display technology due to their advantages such as high brightness, high contrast and long lifespan.

[0003] However, due to limitations in the epitaxial characteristics of red light, the luminous efficiency of red Micro LED chips is significantly lower than that of blue and green Micro LED chips. Furthermore, Micro LED chips also suffer from issues with luminous uniformity. Specifically, the brightness in the central region of the chip is typically lower than that at the edges, resulting in uneven luminous distribution. These problems lead to a significant reduction in the overall brightness of the display panel, impacting display quality and user experience.

[0004] The above problems indicate that traditional Micro LED display technology has technical bottlenecks in achieving efficient red light emission and uniform light output, and new solutions are urgently needed to improve the performance and display effect of display panels.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] Based on this, embodiments of this application provide a display panel and a display device that can improve the overall brightness of the display panel and enhance the brightness uniformity of the display panel, thereby optimizing the display effect of the display panel.

[0007] According to some embodiments, this application provides a display panel, including:

[0008] substrate;

[0009] Multiple light-emitting units are located on one side of the substrate;

[0010] Multiple lens units are correspondingly disposed above the light-emitting side of the multiple light-emitting units; the surface of each lens unit includes a first region and a second region located outside the first region;

[0011] The lens unit surface is provided with multiple micro-patterns, including multiple first micro-patterns located in the first region and multiple second micro-patterns located in the second region; the arrangement density of the first micro-patterns is greater than the arrangement density of the second micro-patterns.

[0012] In some embodiments, the spacing between two adjacent first micro-patterns is smaller than the spacing between two adjacent second micro-patterns.

[0013] In some embodiments, the spacing between two adjacent first micropatterns ranges from 0.5 μm to 10 μm, and the spacing between two adjacent second micropatterns ranges from 0.5 μm to 20 μm.

[0014] In some embodiments, the micropattern is a concave hole, and the opening size of the first micropattern is smaller than the opening size of the second micropattern.

[0015] In some embodiments, the inner surface of the micropattern is configured as a continuous and closed conical surface.

[0016] In some embodiments, the micropattern is raised, and the bottom surface size of the first micropattern is smaller than the bottom surface size of the second micropattern.

[0017] In some embodiments, the spacing between two adjacent lens units gradually increases from the center of the light-emitting side of the light-emitting unit toward the edge.

[0018] In some embodiments, the spacing between two adjacent lens units ranges from 1.5 μm to 35 μm.

[0019] In some embodiments, the light-emitting unit includes a red light-emitting unit, a blue light-emitting unit, and / or a green light-emitting unit;

[0020] The arrangement density of the micro-patterns on the surface of the lens unit above the red light-emitting unit is greater than the arrangement density of the micro-patterns on the surface of the lens unit above the other light-emitting units.

[0021] In some embodiments, the micropattern of the lens unit above the red light-emitting unit is raised, and the micropattern of the lens unit above other color light-emitting units is recessed.

[0022] In some embodiments, the lens unit above the red light-emitting unit has the same radius of curvature as the lens units above other color light-emitting units.

[0023] In some embodiments, the height of the protrusion is greater than the depth of the recess.

[0024] According to some embodiments, this application also provides a display device, including the display panel provided in the foregoing embodiments.

[0025] The embodiments of this application may have, or at least have, the following advantages:

[0026] In this embodiment, by setting a lens unit above the light-emitting side of the light-emitting unit, the light propagation path is changed by the lens unit, thereby reducing total internal reflection of light at the interface between the light-emitting unit and the air, and extracting more light from inside the light-emitting unit, thus improving the light extraction efficiency.

[0027] The lens unit surface has multiple micro-patterns that can refocus or collimate diverging light, causing the light to propagate in a more concentrated direction. This not only reduces light loss and improves light utilization, making the light that finally reaches the display panel surface brighter and more concentrated, thus effectively improving the overall brightness of the display panel, but also reduces light scattering on the display panel, reducing glare and enhancing image contrast and clarity.

[0028] The lens unit surface includes a first region and a second region located around the first region. In this embodiment, the first micro-pattern disposed in the first region has a greater arrangement density than the second micro-pattern disposed in the second region. This micro-pattern arrangement can effectively balance the brightness difference between the middle and edge regions of the light-emitting unit, making the overall light output of the light-emitting unit more uniform, thereby improving the uniformity and image consistency of the display panel.

[0029] The embodiments of this application effectively improve the overall brightness of the display panel, enhance the contrast and clarity of the image, and also improve the brightness uniformity and image consistency of the display panel, thus achieving a higher quality display effect.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0031] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0032] Figure 1 This is a schematic cross-sectional view of a display panel provided in some embodiments of this application;

[0033] Figure 2 A top view of the lens unit in a display panel provided in some embodiments of this application;

[0034] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0035] Figure 4 A top view of the lens unit in a display panel provided for other embodiments of this application;

[0036] Figure 5 Schematic diagram of the cross-sectional structure of the display panel provided in other embodiments of this application;

[0037] Figure 6 for Figure 5 The diagram shows a top view of the lens unit in the display panel.

[0038] Figure 7 A cross-sectional structural schematic diagram of a display panel provided for some embodiments of this application;

[0039] Figure 8 A cross-sectional structural schematic diagram of a display panel provided in some embodiments of this application;

[0040] Figure 9 A schematic cross-sectional view of the lens unit corresponding to the red light emitting unit in a display panel provided in some embodiments of this application;

[0041] Figure 10 A schematic cross-sectional view of the lens unit corresponding to other light-emitting units in a display panel provided in some embodiments of this application;

[0042] Figure 11 This is a schematic diagram of the structure of a display device provided in some embodiments of this application.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100, Substrate; 200, Transparent encapsulation layer; R, Red light-emitting unit; B, Blue light-emitting unit; G, Green light-emitting unit; 300, Lens unit; 301, First micro-pattern; 302, Second micro-pattern; 300A, First region; 300B, Second region; 10, Display device; 11, Display panel. Detailed Implementation

[0045] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] It should be understood that when an element or layer is referred to as “on” or “adjacent to” other elements or layers, it may be directly on or adjacent to other elements or layers, or there may be intervening elements or layers.

[0048] It should be understood that although the terms first, second, etc., may be used to describe various elements, components, regions, layers, doping types, and / or portions, these elements, components, regions, layers, doping types, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, doping type, or portion from another element, component, region, layer, doping type, or portion. Therefore, without departing from the teachings of this invention, the first element, component, region, layer, doping type, or portion discussed below may be referred to as the second element, component, region, layer, or portion.

[0049] Spatial relation terms such as “…above” can be used herein to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as “…above” will be oriented “below” other elements or features. Therefore, the exemplary term “…above” can include both above and below orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0050] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, in this specification, the term “and / or” includes any and all combinations of the associated listed items.

[0051] Embodiments of the invention are described herein with reference to cross-sectional views that serve as schematic diagrams of ideal embodiments (and intermediate structures), thus allowing for the anticipation of variations in the illustrated shapes due to, for example, manufacturing techniques and / or tolerances. Therefore, embodiments of the invention should not be limited to the specific shapes of the regions shown herein, but rather include shape deviations due to, for example, manufacturing techniques. Consequently, the regions shown in the figures are substantially schematic, and their shapes do not represent the actual shapes of regions of the device, nor do they limit the scope of the invention.

[0052] Due to limitations in the epitaxial characteristics of red light, the luminous efficiency of red micro-light-emitting diode (Micro LED) chips is significantly lower than that of blue and green Micro LED chips. Furthermore, Micro LED chips also suffer from issues with luminous uniformity. Specifically, the brightness in the central region of the chip is typically lower than that at the edges, resulting in uneven luminous distribution. These problems lead to a significant reduction in the overall brightness of the display panel, impacting display quality and user experience.

[0053] The above problems indicate that traditional Micro LED display technology has technical bottlenecks in achieving efficient red light emission and uniform light output, and new solutions are urgently needed to improve the performance and display effect of display panels.

[0054] Based on this, this application provides a display panel and a display device that can improve the overall brightness and brightness uniformity of the display panel, thereby optimizing the display effect. Details will be described in subsequent embodiments.

[0055] This application provides a display panel. Please refer to [link / reference needed]. Figure 1 The display panel may specifically include a substrate 100, multiple light-emitting units, and multiple lens units 300. The multiple light-emitting units may be located on one side of the substrate 100.

[0056] As an example, Micro LEDs can be selected to fabricate the above-mentioned light-emitting unit; or, the above-mentioned light-emitting unit can be set as an organic light-emitting diode (OLED) or a quantum light-emitting diode (QLED), etc., and this application does not make any specific limitation in this regard.

[0057] For example, such as Figure 1 As shown, the aforementioned light-emitting unit may specifically include a red light-emitting unit R, a blue light-emitting unit B, and / or a green light-emitting unit G. Here, the red light-emitting unit R indicates that the light emitted by the unit is red, and so on.

[0058] like Figure 1 As shown, multiple lens units 300 are correspondingly disposed above the light-emitting side of multiple light-emitting units. The surface of the lens unit 300 may include a first region 300A and a second region 300B located around the first region 300A.

[0059] The surface of the lens unit 300 may be provided with multiple micro-patterns, including multiple first micro-patterns 301 located in the first region 300A and second micro-patterns 302 located in the second region 300B. The arrangement density of the first micro-patterns 301 is greater than that of the second micro-patterns 302.

[0060] Generally, when light emitted from a light-emitting unit passes through the interface between the light-emitting unit and air, it encounters a sudden change in refractive index, causing some light to be trapped inside the light-emitting unit or substrate due to total internal reflection. In this embodiment, by providing a lens unit 300 above the light-emitting side of the light-emitting unit, the lens unit 300 changes the light propagation path, thereby reducing total internal reflection at the interface between the light-emitting unit and air, extracting more light from inside the light-emitting unit, and improving light extraction efficiency.

[0061] The light emitted by the light-emitting unit typically diverges in various directions. In this embodiment, the lens unit 300 has multiple micro-patterns on its surface. These micro-patterns can refocus or collimate the diverged light, causing it to propagate in a more concentrated direction. This not only reduces light loss and improves light utilization, resulting in brighter and more concentrated light reaching the display panel surface, thus effectively improving the overall brightness of the display panel, but also reduces light scattering on the display panel, lowering glare and enhancing image contrast and clarity. For example, compared to a lens unit 300 without micro-patterns, this embodiment can improve light extraction efficiency by at least 10% by providing multiple micro-patterns on the surface of the lens unit 300.

[0062] The lens unit 300 surface includes a first region 300A and a second region 300B located around the first region 300A. In this embodiment, the first micro-pattern 301 disposed in the first region 300A has a higher arrangement density than the second micro-pattern 302 disposed in the second region 300B. Since the light emission from the central region of the light-emitting unit is weaker, increasing the density of the micro-pattern enhances light extraction and collimation, thereby increasing the brightness of the central region. Conversely, since the light emission from the edge region is stronger, decreasing the density of the micro-pattern appropriately reduces light extraction and collimation, thus decreasing the brightness of the edge region. This micro-pattern arrangement effectively balances the brightness difference between the central and edge regions of the light-emitting unit, making the overall light output of the light-emitting unit more uniform, thereby improving the uniformity and image consistency of the display panel.

[0063] The embodiments of this application effectively improve the overall brightness of the display panel, enhance the contrast and clarity of the image, and also improve the brightness uniformity and image consistency of the display panel, thus achieving a higher quality display effect.

[0064] In some embodiments, please refer to Figure 2 The spacing between two adjacent first micro-patterns 301 is smaller than the spacing between two adjacent second micro-patterns 302.

[0065] It should be noted that the spacing between two adjacent first micro-patterns 301 in the above embodiments refers to the shortest distance between the edge of one first micro-pattern 301 and the edge of the adjacent first micro-pattern 301, for example... Figure 3 S1 is shown. Similarly, the spacing between two adjacent second micro-patterns 302 described in the above embodiments refers to the shortest distance between the edge of one second micro-pattern 302 and the edge of the other adjacent second micro-pattern 302.

[0066] In other embodiments, the spacing between two adjacent first micro-patterns 301 may also be equal to the spacing between two adjacent second micro-patterns 302.

[0067] In some embodiments, the spacing between two adjacent first micro-patterns 301 can range from 0.5 μm to 10 μm, but is not limited thereto. As an example, the spacing between two adjacent first micro-patterns 301 can specifically be 0.5 μm, 1 μm, 2 μm, 5 μm, or 10 μm, etc.

[0068] In some embodiments, the spacing between two adjacent second micro-patterns 302 can range from 0.5 μm to 20 μm, but is not limited thereto, as long as it is greater than the spacing between two adjacent first micro-patterns 301. As an example, the spacing between two adjacent second micro-patterns 302 can specifically be 0.5 μm, 5 μm, 10 μm, 15 μm, or 20 μm, etc.

[0069] The multiple micro-patterns disposed on the surface of the lens unit 300 may have the same or different shapes, and this application does not specifically limit them. Considering the fill factor of the lens unit 300 (the ratio of the effective light-transmitting area of ​​the unit element to the total area of ​​the unit), the micro-patterns may also be combinations of several different shapes and / or sizes.

[0070] This application does not impose specific limitations on the arrangement of multiple micropatterns on the surface of the lens unit 300, as long as the arrangement density of the first micropattern 301 is greater than the arrangement density of the second micropattern 302. As an example, the multiple micropatterns can be arranged in a hexagonal or quadrilateral array.

[0071] As an example, the micropattern is specifically manifested as a concave hole. In some embodiments, the opening size of the first micropattern 301 may be smaller than the opening size of the second micropattern 302. This allows the first micropattern 301 to have a larger specific surface area, increasing the number of reflections and refractions of light on the surface of the lens unit 300, making the light more uniformly scattered and distributed, thereby further improving brightness uniformity and image consistency, and enhancing light extraction efficiency.

[0072] In other embodiments, the opening size of the first micropattern 301 may also be equal to the opening size of the second micropattern 302. Since the opening size of the micropatterns in different regions is consistent, the process steps such as parameter setting and equipment adjustment during preparation can be reduced, simplifying the production process and thus improving production efficiency.

[0073] As an example, the opening size of the micropattern can specifically range from 0.5 μm to 10 μm; for example, the opening size of the micropattern can specifically be 0.5 μm, 1 μm, 2 μm, 5 μm, or 10 μm, etc. Exemplarily, the concave depth of the micropattern can specifically range from 0.5 μm to 1.5 μm; for example, the concave depth of the micropattern can specifically be 0.5 μm, 0.75 μm, 1 μm, 1.25 μm, or 1.5 μm, etc. By controlling the opening size and / or concave depth of the micropattern on the surface of the lens unit 300 within the above-mentioned ranges, a good light-gathering effect can be achieved while keeping the manufacturing difficulty within a reasonable range, enabling the lens unit 300 to meet application requirements and be manufactured economically and efficiently under limited technical conditions.

[0074] In some embodiments, the inner surface of the micropattern may specifically be represented as a continuous and closed conical surface, but is not limited thereto; in this case, please refer to Figure 5 and Figure 6 The micropattern can be represented as a concave triangular pyramid. In other embodiments, the inner surface of the micropattern can be represented as a concave hemispherical surface.

[0075] This application does not specifically limit the formation method of the above-mentioned recessed holes. The specific formation method can be comprehensively considered based on factors such as the complexity and precision requirements of the required recessed holes, as well as production scale and cost. As an example, the required recessed holes can be formed on the surface of the lens unit 300 by means of, but not limited to, photolithography, reactive ion etching, or laser direct writing. Among them, the above-mentioned photolithography can be, for example, ordinary mask photolithography or grayscale mask photolithography.

[0076] As an example, the micropattern is specifically manifested as a protrusion. In some embodiments, the bottom surface size of the first micropattern 301 is smaller than the bottom surface size of the second micropattern 302. This allows the first micropattern 301 to have a larger specific surface area, increasing the number of reflections and refractions of light on the surface of the lens unit 300, making the light more uniformly scattered and distributed, thereby further improving brightness uniformity and image consistency, and enhancing light extraction efficiency.

[0077] In other embodiments, the bottom surface size of the first micro-pattern 301 may also be equal to the bottom surface size of the second micro-pattern 302. Since the micro-patterns in different regions have the same bottom surface size, the process steps such as parameter setting and equipment adjustment during preparation can be reduced, simplifying the production process and thus improving production efficiency.

[0078] For example, please refer to Figure 7 The micro-patterns may specifically be represented as raised hemispheres, but are not limited thereto. For other embodiments, please refer to... Figure 8 The micro-patterns can also be specifically represented as raised cones.

[0079] This application does not specifically limit the formation method of the above-mentioned protrusions. The specific formation method can be comprehensively considered based on factors such as the complexity and precision requirements of the required protrusions, as well as production scale and cost. As an example, the required protrusions can be formed on the surface of the lens unit 300 by means of, but not limited to, photosensitive glass thermoforming process or hot pressing molding process.

[0080] In some embodiments, the spacing between two adjacent lens units 300 (also called lens unit pitch) gradually increases from the center of the light-emitting side of the light-emitting unit toward the edge.

[0081] In some embodiments, the spacing between two adjacent lens units 300 can specifically range from 1.5 μm to 35 μm, but is not limited thereto. The spacing between two adjacent lens units 300 can specifically be 1.5 μm, 5 μm, 10 μm, 20 μm, or 35 μm, etc.

[0082] In one embodiment, the spacing between two adjacent lens units 300 is 1.5 μm at the center of the light-emitting side of the light-emitting unit; and the spacing between two adjacent lens units 300 is 10 μm at the edge of the light-emitting side of the light-emitting unit. The spacing between two adjacent lens units 300 gradually increases from 1.5 μm to 10 μm along the direction from the center to the edge of the light-emitting side of the light-emitting unit. For example, the spacing between two adjacent lens units 300 can be successively 1.5 μm, 2 μm, 3 μm, 5 μm, 7 μm, and 10 μm along the direction from the center to the edge of the light-emitting side of the light-emitting unit, but is not limited thereto.

[0083] This application does not specifically limit the size of the lens unit 300 in its embodiments. In some embodiments, please continue to refer to... Figure 1 The orthographic projection of the lens unit 300 onto the light-emitting unit can cover the top surface of the light-emitting unit. When the orthographic projection of the lens unit 300 completely covers the top surface of the light-emitting unit, all the light emitted by the light-emitting unit can be captured and redirected by the lens unit 300. In this way, some light rays can be avoided from being blocked or scattered during the emission process, resulting in optical loss, thereby further reducing light loss and improving light extraction efficiency.

[0084] In some embodiments, the orthogonal projection diameter of the lens unit 300 on the corresponding light-emitting unit can specifically range from 3μm to 100μm. For example, the orthogonal projection diameter of the lens unit 300 on the corresponding light-emitting unit can specifically be 3μm, 10μm, 20μm, 50μm, or 100μm, etc.

[0085] In some embodiments, please continue reading Figure 1 The arrangement density of the micro-patterns on the surface of the lens unit 300 above the red light-emitting unit R is greater than the arrangement density of the micro-patterns on the surface of the lens unit 300 above other light-emitting units.

[0086] As an example, the arrangement density of the micro-patterns on the surface of the lens unit 300 above the red light-emitting unit R is greater than the arrangement density of the micro-patterns on the surface of the lens unit 300 above other light-emitting units.

[0087] In some embodiments, the micropattern of the lens unit 300 above the red light-emitting unit R is presented as a protrusion, while the micropattern of the lens unit 300 above other color light-emitting units can be presented as a recess. For example, the micropattern of the lens unit 300 above the green light-emitting unit G and / or the blue light-emitting unit B can be presented as a recess.

[0088] This can be combined Figure 9 and Figure 10 To understand this, the lens unit 300 above the red light-emitting unit R can be considered as a virtual lens with a radius of curvature D2 (e.g., Figure 9 Additional micro-patterns are added to the (shown by the dashed line); the lens unit 300 above other color light-emitting units can be understood as a virtual lens with a radius of curvature d1 (such as...). Figure 10 Micro-patterns are etched onto the surface (shown by the dashed line).

[0089] Since the luminous efficiency and lifespan of the red light-emitting unit R are generally lower than those of the green light-emitting unit G and the blue light-emitting unit B, the lens unit 300 significantly improves the luminous efficiency of the red light-emitting unit R. To address this issue, the above embodiment adds a protrusion to the surface of the lens unit 300 above the red light-emitting unit R to provide stronger light extraction, enhance light scattering and guiding effects, and allow more red light to be effectively emitted. Furthermore, recesses are formed on the surface of the lens unit 300 above other color light-emitting units to avoid excessive light modulation and appropriately optimize light collimation and distribution.

[0090] The above embodiments optimize the characteristics of light-emitting units of different colors, thereby improving the overall optical performance of the display panel. Through differentiated pattern design, a balanced improvement in the light efficacy of red, green, and blue colors can be achieved without significantly increasing manufacturing complexity and cost, thus improving the display effect of the display panel.

[0091] In some embodiments, the lens unit 300 above the red light-emitting unit R may have the same radius of curvature as the lens units 300 above other color light-emitting units. For example, the lens unit 300 above the green light-emitting unit G and / or the blue light-emitting unit B may have the same radius of curvature as the lens unit 300 above the red light-emitting unit R.

[0092] This can be combined Figure 9 and Figure 10 To understand this, the radius of curvature of the lens unit 300 above the red light-emitting unit R is D2, and the radius of curvature of the lens unit 300 above the other color light-emitting units is d1; in the above embodiment, D2 = d1.

[0093] In some embodiments, the height of the protrusion is greater than the depth of the recess.

[0094] This can be combined Figure 9 and Figure 10 To understand this, the height of the protrusion is D1-D2, and the depth of the concave hole is d1-d2; in the above embodiment, D1-D2>d1-d2 can be satisfied.

[0095] As an example, the height D1-D2 of the micro-pattern protrusion of the lens unit 300 above the red light-emitting unit R can specifically range from 0.8μm to 1.2μm. For example, the height D1-D2 of the micro-pattern protrusion of the lens unit 300 above the red light-emitting unit R can specifically be 0.8μm, 0.9μm, 1μm, 1.1μm, or 1.2μm, etc.

[0096] In some embodiments, please continue reading Figure 1The display panel may also include a transparent encapsulation layer 200. The transparent encapsulation layer 200 is located on the side of the substrate 100 where the light-emitting unit is disposed, and can be used to encapsulate the light-emitting unit.

[0097] In the above embodiments, the lens unit 300 may be disposed on the surface of the transparent encapsulation layer 200 away from the substrate 100.

[0098] Those skilled in the art will understand that the structures shown in the accompanying drawings are merely schematic diagrams of a portion of the structure related to the present application and do not constitute a limitation on other components applied thereto. In actual embodiments, the display panel may include more or fewer components than shown in the figures, or combine certain components, or have different component arrangements.

[0099] Based on the same inventive concept, embodiments of this application also provide a display device. Please refer to... Figure 11 The display device 10 includes the display panel 11 provided in the above embodiment. The display device 10 can be any electronic device with display function, such as an in-vehicle display device, a mobile phone, a computer, a smart wearable device (e.g., a smartwatch), etc., and the embodiments of this application do not limit it.

[0100] The specific limitations of the display panel 11 have been described in detail in the foregoing embodiments and will not be repeated here. The display device 10 can also achieve all the technical effects that the display panel 11 can achieve, and will not be described in detail here either.

[0101] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features of the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0102] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: substrate; Multiple light-emitting units are located on one side of the substrate; Multiple lens units are correspondingly disposed above the light-emitting side of the multiple light-emitting units; the surface of each lens unit includes a first region and a second region located outside the first region; The lens unit has a plurality of micro-patterns on its arc-shaped surface protruding away from the substrate, including a plurality of first micro-patterns located in the first region and a plurality of second micro-patterns located in the second region; the arrangement density of the first micro-patterns is greater than the arrangement density of the second micro-patterns.

2. The display panel according to claim 1, characterized in that, The spacing between two adjacent first micro-patterns is smaller than the spacing between two adjacent second micro-patterns.

3. The display panel according to claim 2, characterized in that, The spacing between two adjacent first micro-patterns ranges from 0.5 μm to 10 μm, and the spacing between two adjacent second micro-patterns ranges from 0.5 μm to 20 μm.

4. The display panel according to claim 2, characterized in that, The micro-pattern is a concave hole, and the opening size of the first micro-pattern is smaller than the opening size of the second micro-pattern.

5. The display panel according to claim 4, characterized in that, The inner surface of the micropattern is configured as a continuous and closed conical surface.

6. The display panel according to claim 2, characterized in that, The micro-pattern is raised, and the bottom surface size of the first micro-pattern is smaller than the bottom surface size of the second micro-pattern.

7. The display panel according to claim 1, characterized in that, The spacing between two adjacent lens units gradually increases from the center of the light-emitting side of the light-emitting unit toward the edge.

8. The display panel according to claim 7, characterized in that, The spacing between two adjacent lens units ranges from 1.5 μm to 35 μm.

9. The display panel according to claim 1, characterized in that, The light-emitting unit includes a red light-emitting unit, a blue light-emitting unit, and / or a green light-emitting unit; The arrangement density of the micro-patterns on the surface of the lens unit above the red light-emitting unit is greater than the arrangement density of the micro-patterns on the surface of the lens unit above the other light-emitting units.

10. The display panel according to claim 9, characterized in that, The micro-pattern of the lens unit above the red light-emitting unit is raised, while the micro-pattern of the lens unit above the other color light-emitting units is recessed.

11. The display panel according to claim 10, characterized in that, The lens unit above the red light-emitting unit has the same radius of curvature as the lens units above the other color light-emitting units.

12. The display panel according to claim 11, characterized in that, The height of the protrusion is greater than the depth of the concave hole.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 12.

Images