Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a substrate, a pixel definition layer, a plurality of light-emitting units, an encapsulation layer and a protective layer. The protective layer is arranged on the encapsulation layer. A microstructure is arranged on the side of the protective layer away from the substrate. The microstructure is used for reflecting ambient light incident on the display panel. The microstructure covers at least the opening area. The microstructure arranged on the light-emitting side of the display panel is used for scattering external ambient light. When the external ambient light is incident on the microstructure, scattering and diffuse reflection occur, specular reflection is greatly reduced, and the glare phenomenon is improved.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) devices are gradually replacing LCD panels due to their advantages such as self-illumination, low power consumption, and the absence of a liquid crystal flow layer, especially in computer monitors and televisions, where more and more LCD panels are being replaced by OLEDs. Currently, OLED display panels typically use circular polarizers to reduce ambient light reflectivity. However, when light passes through a circular polarizer, significant light is lost, thus reducing the display effect and making it unsuitable for curved displays and flexible screens. In contrast, the technology that uses color filters instead of polarizers can address both ambient light reflectivity and emitted light loss issues.

[0003] However, the outermost layer of a color filter on the light-emitting side of a display panel is generally a flat structure. When ambient light is incident, specular reflection can easily occur, causing glare and affecting the display effect. If anti-glare treatment is required, an additional anti-glare film needs to be applied, which increases the process and cost. Therefore, those skilled in the art urgently need a solution to the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and a display device that utilizes microstructures on the light-emitting side of the display panel to scatter ambient light, causing scattering and diffuse reflection when ambient light is incident on the microstructures, thereby greatly reducing specular reflection and improving glare.

[0005] This application discloses a display panel, which includes a substrate, a pixel definition layer, a plurality of light-emitting units, an encapsulation layer, and a protective layer. The pixel definition layer is disposed on the substrate and has a plurality of opening areas. The plurality of light-emitting units are respectively disposed within the plurality of opening areas. The encapsulation layer is disposed on the plurality of light-emitting units for encapsulating the light-emitting units. The protective layer is disposed on the encapsulation layer. A microstructure is disposed on the side of the protective layer away from the substrate, and the microstructure is used to reflect ambient light incident on the display panel. The microstructure at least covers the opening areas.

[0006] Optionally, the protective layer comprises an organic material; the organic material comprises at least a first solid component and a second solid component; the first solid component is disposed on the upper layer of the protective layer, and the second solid component is disposed on the lower layer of the protective layer; the curing shrinkage rate of the first solid component is less than the curing shrinkage rate of the second solid component; the first solid component is used to form wrinkles with the second solid component to form the microstructure after shrinkage occurs during the curing stage of the protective layer.

[0007] Optionally, the curing shrinkage rate of the first solid component is at least 3% less than the curing shrinkage rate of the second solid component; the first solid component is an epoxy resin material or a methacrylic resin material, and the second solid component is an epoxy resin material or a methacrylic resin material; wherein the microstructure includes multiple folded protrusions, the width of the folded protrusions is 3 micrometers to 10 micrometers, and the thickness of the folded protrusions is 1 micrometer to 5 micrometers.

[0008] Optionally, the protective layer includes multiple light-filtering sections, and the microstructure is disposed on the side of the light-filtering section away from the substrate. The multiple light-filtering sections are respectively disposed corresponding to the opening area, and the light-filtering sections are also doped with perylene dyes. The light-filtering sections are used to filter ambient light incident on the display panel from the outside, and the light transmittance of the light-filtering sections is greater than or equal to 70%.

[0009] Optionally, the filter section may further include a plurality of ceramic particles, the refractive index of which is higher than that of the filter section; the ceramic particles are used to scatter the light emitted by the light-emitting unit.

[0010] Optionally, the filter portion includes a first filter portion and a second filter portion, the first filter portion being disposed on the side of the second filter portion away from the substrate; the microstructure is disposed on the side of the first filter portion away from the substrate, and the first filter portion is formed using an organic material comprising at least a first solid inclusion and a second solid inclusion.

[0011] Optionally, the first filter section contains a plurality of ceramic particles, the refractive index of which is higher than that of the filter section; the ceramic particles are used to scatter the light emitted from the light-emitting unit; the second filter section contains a plurality of scattering particles, which are used to scatter the light emitted from the light-emitting unit; the second filter section is also doped with perylene dye; the perylene dye is used to filter ambient light incident into the filter section, and the light transmittance of the filter section is greater than or equal to 70%.

[0012] Optionally, the display panel further includes a black matrix, wherein the black matrix has multiple cutouts corresponding to the multiple opening areas, and multiple light-filtering portions are disposed within the multiple cutouts; the protective layer further includes an extension portion, which covers the black matrix, and a microstructure is disposed on the side of the extension portion away from the black matrix.

[0013] Optionally, the encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer. The organic encapsulation layer is disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer. The first inorganic encapsulation layer is disposed on the light-emitting unit, and the second inorganic encapsulation layer is disposed on the organic encapsulation layer. The organic encapsulation layer includes a first organic layer and a second organic layer. The first organic layer is formed using an organic material that includes at least a first solid inclusion and a second solid inclusion. A wrinkled structure is formed on the side of the first organic layer near the second organic layer.

[0014] This application also discloses a display device, including a driving circuit and the aforementioned display panel, wherein the driving circuit is used to drive the display panel to display.

[0015] This application utilizes a microstructure located on the side of the protective layer furthest from the substrate. This microstructure, situated on the outermost side of the light-emitting side of the display panel, scatters ambient light. This scattering and diffuse reflection significantly reduces specular reflection when ambient light strikes the microstructure, thereby improving glare reduction. This eliminates the need for an anti-glare film, saving on process time and costs. Attached Figure Description

[0016] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 This is a schematic diagram of the display panel according to the first embodiment of this application;

[0018] Figure 2 This is a schematic diagram of another display panel according to the first embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the display panel according to the second embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the display panel according to the third embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the display device of this application.

[0022] Among them, 100 is a display panel; 110 is a substrate; 111 is a pixel definition layer; 112 is an opening area; 113 is a light-emitting unit; 120 is an encapsulation layer; 121 is a first inorganic encapsulation layer; 122 is an organic encapsulation layer; 1221 is a first organic layer; 1222 is a second organic layer; 1223 is a pleated structure; 123 is a second inorganic encapsulation layer; 130 is a protective layer; 131 is a light filter; 1311 is a first light filter; 1312 is a second light filter; 132 is a microstructure; 132a is a pleated protrusion; 133 is an extension; 134 is a ceramic particle; 135 is a scattering particle; 140 is a black matrix; 141 is a hollowed-out part; 200 is a display device; and 210 is a driving circuit. Detailed Implementation

[0023] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0024] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. Furthermore, terms such as "upper," "lower," "left," "right," "vertical," and "horizontal," indicating orientation or positional relationships, are based on the orientation or relative positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description of this application, not indicating that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0026] Figure 1 This is a schematic diagram of the display panel according to the first embodiment of this application, see below. Figure 1As shown, this application discloses a display panel 100, which includes a substrate 110, a pixel definition layer 111, a plurality of light-emitting units 113, an encapsulation layer 120, and a protective layer 130. The pixel definition layer 111 is disposed on the substrate 110 and has a plurality of opening regions 112. The plurality of light-emitting units 113 are respectively disposed in the plurality of opening regions 112. The encapsulation layer 120 is disposed on the plurality of light-emitting units 113 and is used to encapsulate the light-emitting units 113. The protective layer 130 is disposed on the encapsulation layer 120. A microstructure 132 is disposed on the side of the protective layer 130 away from the substrate 110. The microstructure 132 is used to reflect ambient light incident on the display panel 100. The microstructure 132 covers at least the opening regions 112.

[0027] This application provides a microstructure 132 on the side of the protective layer 130 away from the substrate 110. The microstructure 132, located on the outermost side of the light-emitting side of the display panel 100, scatters ambient light. This scattering and diffuse reflection significantly reduces specular reflection when ambient light strikes the microstructure 132, thus improving glare reduction. This eliminates the need for an anti-glare film, saving on process time and costs.

[0028] In this embodiment, the protective layer 130 serves as the outermost film layer on the light-emitting side of the display panel 100, meaning it is disposed on the outermost side of the light-emitting side of the display panel 100. Generally, the protective layer 130 is formed of an organic material with a refractive index higher than that of air. If the side of the protective layer 130 away from the substrate 110 is made into a flat surface, when ambient light is incident on the display panel 100, it will immediately contact the microstructure 132. Through the action of the microstructure 132, most of the ambient light will not undergo specular reflection but diffuse reflection, thus preventing glare caused by specular reflection. Furthermore, by setting the microstructure 132, some light cannot enter the interior of the display panel 100. In this embodiment, the protective layer 130 also serves as the outermost protective layer of the display panel 100, improving the unevenness of the outermost film layer caused by the placement of devices. Meanwhile, a microstructure 132 is provided on the side of the protective layer 130 away from the substrate 110, which also has a scattering effect, scattering the emitted light from the light-emitting unit 113 before emission. Compared to a protective layer 130 with a flat surface, the refractive index of the protective layer 130 is higher than that of air. This causes the large-angle emitted light from the light-emitting unit 113 to be deflected at a large angle when it enters the interface between the protective layer 130 and air, and may even undergo total internal reflection and fail to escape, thus hindering light extraction. By providing the microstructure 132, the large-angle emitted light is deflected in a direction perpendicular to the substrate 110, thereby improving the light extraction efficiency of the display panel 100.

[0029] It is understood that the display panel 100 of this application is applicable to non-external touch display panels 100, that is, the protective layer 130 is set on the outermost layer of the light-emitting side of the display panel 100, so that ambient light is reflected by the microstructure 132 set on the protective layer 130 at the first time, thereby reducing specular reflection and glare. The display panel 100 of this embodiment can be a monitor, television, etc. This embodiment is also applicable to embedded touch display panels 100, and the outermost protective layer 130 can be set as a microstructure 132 to achieve the effect of anti-glare and specular reflection.

[0030] In one embodiment, the protective layer 130 comprises an organic material; the organic material includes at least a first solid inclusion and a second solid inclusion; the first solid inclusion is disposed on the upper layer of the protective layer 130, and the second solid inclusion is disposed on the lower layer of the protective layer 130; the curing shrinkage rate of the first solid inclusion is less than the curing shrinkage rate of the second solid inclusion; the first solid inclusion is used to form wrinkles with the second solid inclusion to form the microstructure 132 after shrinkage occurs during the curing stage of the protective layer 130.

[0031] In this embodiment, the shrinkage rates of the first solid component and the second solid component are different. The shrinkage rate of the first solid component in the upper layer is less than that of the second solid component in the lower layer. During the curing stage of the wet process of the protective layer 130, the shrinkage rates of the first solid component and the second solid component are different. During the curing process, the upper component undergoes buckling deformation under the tensile or compressive stress of the lower component to form a wrinkled morphology, thereby forming the microstructure 132.

[0032] Specifically, the curing shrinkage rate of the first solid component is at least 3% less than the curing shrinkage rate of the second solid component; that is, the curing shrinkage rate of the second solid component is at least 3% greater than the curing shrinkage rate of the first solid component.

[0033] In this embodiment, during the curing process, the second solid inclusion with a larger shrinkage rate can serve as the core layer, while the second solid inclusion with a smaller shrinkage rate can serve as the skin layer. When the second solid inclusion shrinks, it is constrained and inhibited by the skin layer. When the compressive stress accumulated at the interface between the two phases exceeds a certain critical value, in order to release energy, the interface no longer remains flat but instead chooses to buckle and become unstable, forming a periodic wave-like structure, i.e., wrinkles.

[0034] The first solid component is an epoxy resin or a methacrylic resin, and the second solid component is also an epoxy resin or a methacrylic resin. A high crosslinking density results in a larger shrinkage rate for the second solid component. For example, when the second solid component is an epoxy resin, a multifunctional epoxy resin (such as phenolic epoxy) and a rigid curing agent (such as aromatic amine) can be used. When the second solid component is a methacrylic resin, a multifunctional methacrylic monomer (such as ethylene glycol dimethacrylate EGDMA, trimethylolpropane trimethacrylate TMPTMA) can be used. A low crosslinking density results in a relatively small shrinkage rate for the first solid component. For example, when the first solid component is an epoxy resin, a difunctional epoxy resin (such as DGEBA) and a flexible curing agent (such as polyetheramine) can be used, or a flexible toughening agent can be added. When the first solid component is a methacrylic resin, a monofunctional monomer (such as methyl methacrylate MMA) is used, and long-chain flexible monomers or elastomers (such as nitrile rubber) are added for modification. Within a certain range, the greater the difference between the shrinkage rates of the first and second solid contents, the more obvious the corresponding wrinkle morphology.

[0035] Specifically, the microstructure 132 includes multiple wrinkled protrusions 132a, the width L of which is 3 to 10 micrometers, and the thickness H of which is 1 to 5 micrometers. In this embodiment, by adjusting the ratio of the above materials and shrinkage rate, the wrinkled protrusions 132a of the microstructure 132 meet the above parameters, so that the side of the protective layer 130 away from the substrate 110 no longer experiences specular reflection, but diffuse reflection. Importantly, the wrinkled protrusions 132a do not affect the emitted light from the light-emitting unit 113, and to a certain extent, they can also scatter the emitted light, resulting in a wider viewing angle and better display effect at a wider viewing angle for the display panel 100.

[0036] It is understood that this embodiment only uses the first solid inclusion and the second solid inclusion as examples for illustration. In practice, by adjusting the different component materials and proportions in the protective layer 130, different morphologies of wrinkles can be obtained, thereby achieving different optical effects.

[0037] Figure 2 This is a schematic diagram of another display panel according to the first embodiment of this application, see [link / reference]. Figure 2 As shown, based on the above embodiments, this application further uses the protective layer as a color filter. That is, the display panel 100 in this example is a display panel 100 where the polarizer is replaced by a color filter, also known as a COE display panel 100. However, this application saves on the film layer manufacturing process of the color filter by providing a protective layer 130 and using the filter portion 131 in the protective layer 130 to replace the color filter portion 131 in the color filter.

[0038] Specifically, the protective layer 130 includes a plurality of light-filtering portions 131, and the microstructure 132 is disposed on the side of the light-filtering portion 131 away from the substrate 110; the plurality of light-filtering portions 131 are respectively disposed corresponding to the opening area 112, and the light-filtering portions 131 are used to filter the emitted light emitted by the light-emitting unit 113.

[0039] In this embodiment, a microstructure 132 is provided on the side of the protective layer 130 away from the substrate 110. The microstructure 132, located on the outermost side of the light-emitting side of the display panel 100, scatters ambient light, causing scattering and diffuse reflection when ambient light is incident on the microstructure 132, significantly reducing specular reflection and thus improving glare. Furthermore, by using the protective layer 130 as a filter 131, and by providing the filter 131 within the protective layer 130, the amount of ambient light incident on the display panel 100 is reduced. This method replaces the manufacturing process of a color filter 131, thereby saving on the manufacturing process and cost of a color filter.

[0040] For the filter section 131, a perylene dye may also be doped into the filter section 131; the perylene dye is used to filter ambient light incident into the filter section 131, and the light transmittance of the filter section 131 is greater than or equal to 70%.

[0041] The main function of perylene dye materials is to uniformly control the red, green, and blue wavelengths. They allow light in these wavelengths to pass through, but filter out light in other wavelengths, preventing it from passing through the filter element 131, thus replacing the color filter element 131 in a color filter. Furthermore, since the filter element 131 is made of organic materials, it is generally a light-transmitting structure with high transmittance and weak ability to filter ambient light, relying solely on the microstructure 132 to filter ambient light. By increasing the perylene dye and setting the light transmittance to 70%, most ambient light is filtered out without affecting the light emitted from the light-emitting unit 113, thereby avoiding glare problems caused by ambient light incidence.

[0042] In one embodiment, the black matrix 140 in the color filter is still retained. In other words, the protective layer 130 forms a filter portion 131 at the opening of the black matrix 140, and a microstructure 132 is formed on the side of the filter portion 131 away from the substrate 110, thereby avoiding specular reflection. Of course, the thickness of the protective layer 130 (filter portion 131) in the opening region 112 will be greater than the thickness of the black matrix 140.

[0043] In one specific embodiment, the display panel 100 further includes a black matrix 140, the black matrix 140 having a plurality of cutout portions 141 corresponding to a plurality of opening areas 112, and a plurality of light-filtering portions 131 disposed within the plurality of cutout portions 141; the protective layer 130 further includes an extension portion 133, the extension portion 133 covering the black matrix 140, and a microstructure 132 disposed on the side of the extension portion 133 away from the black matrix 140.

[0044] In this embodiment, the microstructure 132 extends from the filter portion 131 to the extension portion 133, so that the protective layer 130 is provided with the microstructure 132 on the side away from the substrate 110. By providing the microstructure 132 on the entire surface of the protective layer 130, the opening area 112 and the non-opening position where the black matrix 140 is located can have a diffuse reflection effect, thus avoiding the problem of specular reflection. Although there is no light emission at the non-opening position of the black matrix 140 and the reflectivity of the black matrix 140 is low, specular reflection will still occur at the position of the black matrix 140 when the ambient light is strong, which will affect the overall appearance.

[0045] Since the protective layer 130 is generally fabricated using a wet process, after the black matrix 140 is completed, a thicker filter portion 131 is formed in the opening area 112 of the black matrix 140, while a thinner extension portion 133 is formed in the non-opening area of ​​the black matrix 140. This results in the thickness of the filter portion 131 being greater than the thickness of the extension portion 133. Of course, the extension portion 133 and the filter portion 131 are formed using the same process, except that the thickness of the extension portion 133 is less than the thickness of the filter portion 131 in the wet process.

[0046] Of course, by controlling the amount of material in the protective layer 130, most of the material in the protective layer 130 can be piled up in the opening area 112, so that the protective layer 130 no longer forms an extension 133, thereby preventing the extension 133 of the microstructure 132 from forming on the black matrix 140.

[0047] In one specific embodiment, the filter section 131 is further provided with a plurality of ceramic particles 134, the refractive index of the ceramic particles 134 being higher than that of the filter section 131; the ceramic particles 134 are used to scatter the light emitted from the light-emitting unit 113.

[0048] The filter section 131 is filled with ceramic particles 134, including silicon oxide particles. The refractive index of the ceramic particles 134 is generally higher than that of the filter section 131. This causes the emitted light from the light-emitting unit 113 to be scattered by the ceramic particles 134 when passing through the filter section 131, thereby increasing the angle of the emitted light and expanding the large-angle optical path. The main function of the ceramic particles 134 is to change the optical path, thereby increasing the luminous efficiency.

[0049] It is worth mentioning that the light-emitting unit 113 used in this embodiment is an RGB light-emitting unit, that is, light-emitting units 113 of different colors are respectively provided in different opening areas 112. The RGB light-emitting unit includes at least three types of light-emitting units 113, such as red light-emitting units, green light-emitting units, and blue light-emitting units. Of course, for display panels 100 with other color light emission types, the color of the light-emitting unit 113 can be selected according to the actual situation.

[0050] Figure 3 This is a schematic diagram of the display panel according to the second embodiment of this application. See also: Figure 3 As shown, this application also discloses another display panel 100, which, based on the above embodiments, forms a corresponding pleated structure 1223 in the encapsulation layer 120 in the same manner as the above protective layer 130.

[0051] Specifically, the encapsulation layer 120 includes a first inorganic encapsulation layer 121, an organic encapsulation layer 122, and a second inorganic encapsulation layer 123. The organic encapsulation layer 122 is disposed between the first inorganic encapsulation layer 121 and the second inorganic encapsulation layer 123. The first inorganic encapsulation layer 121 is disposed on the light-emitting unit 113, and the second inorganic encapsulation layer 123 is disposed on the organic encapsulation layer 122.

[0052] Considering that the organic encapsulation layer 122 and the protective layer 130 are made of similar organic materials, the same method described above for the protective layer 130 can be used to form a wrinkled structure 1223 inside the organic encapsulation layer 122. The scattering effect of the wrinkled structure 1223 makes the light emitted by the light-emitting unit 113 more uniform, especially the compensation light at large angles, which is beneficial to the uniformity of light emitted from the viewing angle. At the same time, the wrinkled structure 1223 can also scatter incident ambient light, thereby improving glare to some extent.

[0053] Specifically, the organic encapsulation layer 122 includes a first organic layer 1221 and a second organic layer 1222. The first organic layer 1221 is disposed below the second organic layer 1222. The first organic layer 1221 is formed of an organic material that includes at least a first solid inclusion and a second solid inclusion. A pleated structure 1223 is formed on the side of the first organic layer 1221 near the second organic layer 1222. The second organic layer 1222 can be formed using a conventional organic encapsulation material.

[0054] In one embodiment, the thickness of the second organic layer 1222 is greater than the thickness of the first organic layer 1221.

[0055] In one embodiment, the refractive index of the second organic layer 1222 is higher than that of the first organic layer 1221. The second organic layer 1222 is formed using a single-component cured material or a multi-component solid inclusion with the same shrinkage rate, resulting in a higher refractive index for the second organic layer 1222 and a lower refractive index for the first organic layer 1221, thus forming a high-low refractive interface between the first organic layer 1221 and the second organic layer 1222. When ambient light is incident on the high-low refractive interface, it is scattered, especially after being reflected at a certain angle and absorbed by the black matrix 140, thereby improving the phenomenon of decreased display clarity caused by external ambient light being reflected by the reflective electrode of the light-emitting unit 113. Moreover, due to the presence of the second organic layer 1222, the wrinkled structure 1223 formed by the first organic layer 1221 does not affect the encapsulation performance, and the wrinkled structure 1223 can reflect or scatter some of the incident ambient light again, avoiding glare.

[0056] In this embodiment, the pleated structure 1223 provided in the organic encapsulation layer 122 can be used alone or in combination with the microstructure 132 in Embodiment 1. With the combined use of the microstructure 132 and the pleated structure 1223, the specular reflection and glare of the display panel 100 are greatly reduced.

[0057] Figure 4 This is a schematic diagram of the display panel according to the third embodiment of this application. See also: Figure 4 As shown, this application also discloses another display panel 100, which, based on the above embodiment one or embodiment two, has a layered arrangement of the filter portion 131 of the opening area 112.

[0058] Specifically, the filter portion 131 includes a first filter portion 1311 and a second filter portion 1312. The first filter portion 1311 is disposed on the side of the second filter portion 1312 away from the substrate 110. The microstructure 132 is disposed on the side of the first filter portion 1311 away from the substrate 110. The first filter portion 1311 is formed using an organic material that includes at least a first solid inclusion and a second solid inclusion.

[0059] In this embodiment, the light filter 131, located at the opening region 112, is disposed in a two-layer structure. Different materials can be added to the two-layer structure to achieve both prevention of ambient light entry and regulation of emitted light. The thickness of the second light filter 1312 is less than or equal to the thickness of the black matrix 140, and the surface of the first light filter 1311 on the side away from the substrate 110 is higher than the outer surface of the black matrix 140.

[0060] The second filter section 1312 is further doped with a perylene dye. This perylene dye filters ambient light incident on the filter section 131, which has a light transmittance of 70% or greater. By placing the perylene dye within the second filter section 1312, and by using other organic materials to form the second filter section 1312, wrinkles during curing shrinkage are avoided. The microstructure 132 is formed solely within the first filter section 1311 using the aforementioned process, thus diffusely reflecting ambient light. Combined with the second filter section 1312, this effectively blocks the incident ambient light. Furthermore, this two-layer configuration prevents the perylene material from entering the wrinkled protrusions 132a within the microstructure 132.

[0061] In one specific embodiment, the first filter section 1311 contains a plurality of ceramic particles 134, the refractive index of which is higher than that of the filter section 131; the ceramic particles 134 are used to scatter the light emitted from the light-emitting unit 113; the second filter section 1312 contains a plurality of scattering particles 135, which are used to scatter the light emitted from the light-emitting unit 113. The size of the ceramic particles 134 is larger than the size of the scattering particles.

[0062] In this embodiment, considering that the first filter 1311 and the second filter 1312 have different functions, the ceramic particles 134 are mainly used to change the light path. Their larger size makes them more suitable for placement within the first filter 1311, thus complementing the wrinkled morphology of the microstructure 132. The second filter 1312 primarily functions as a light filter. By incorporating scattering particles with smaller widths, such as titanium oxide with a radial width of tens of nanometers, the scattering effect of the second filter 1312 is improved.

[0063] It is worth mentioning that in this embodiment, any of the above embodiments can be combined, for example, the organic encapsulation layer 122 can be provided with a first organic layer 1221 and a second organic layer 1222, and a pleated structure 1223 can be provided on the first organic layer 1221. For example, a scheme in which microstructure 132 is provided only in the opening area 112, etc. By combining different schemes, the display panel 100 of this application can achieve better technical effects in many aspects, such as preventing ambient light specular reflection, glare caused by reflection of light entering the display panel 100 by the reflective electrode of the light-emitting unit 113, and the intensity of the emitted light from the light-emitting unit 113.

[0064] Figure 5 This is a schematic diagram of the display device of this application, see [link / reference]. Figure 5 As shown, this application also discloses a display device, the display device 200 including a driving circuit 210 and a display panel 100 in any of the above embodiments, wherein the driving circuit 210 is used to drive the display panel 100 to display.

[0065] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0066] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A display panel, characterized in that, include: Substrate; A pixel definition layer is disposed on the substrate and has multiple opening areas; Multiple light-emitting units are respectively disposed in multiple opening areas; An encapsulation layer is disposed on the plurality of light-emitting units for encapsulating the light-emitting units; as well as A protective layer is disposed on the encapsulation layer; The protective layer has a microstructure on the side away from the substrate. The microstructure is located on the outermost side of the light-emitting side of the display panel and is used to diffusely reflect ambient light incident on the protective layer of the display panel. The microstructure at least covers the opening area. The protective layer is formed of an organic material; the organic material includes at least a first solid component and a second solid component; the first solid component is disposed on the upper layer of the protective layer, and the second solid component is disposed on the lower layer of the protective layer; the curing shrinkage rate of the first solid component is less than the curing shrinkage rate of the second solid component; the first solid component is used to form wrinkles with the second solid component to form the microstructure after shrinkage occurs during the curing stage of the protective layer. The protective layer includes multiple light-filtering sections, and the microstructure is disposed on the side of the light-filtering section away from the substrate. The multiple light-filtering sections are respectively disposed corresponding to the opening area. The light-filtering section includes a first light-filtering section and a second light-filtering section, and the first light-filtering section is disposed on the side of the second light-filtering section away from the substrate. The microstructure is disposed on the side of the first filter portion away from the substrate. The first filter section contains a plurality of ceramic particles, the refractive index of which is higher than that of the filter section; the ceramic particles are used to scatter the light emitted from the light-emitting unit. The second filter section contains a plurality of scattering particles, which are used to scatter the light emitted from the light-emitting unit.

2. The display panel according to claim 1, characterized in that, The first filter portion is formed of an organic material comprising at least a first solid component and a second solid component; The curing shrinkage rate of the first solid component is at least 3% less than the curing shrinkage rate of the second solid component; The first solid component is an epoxy resin material or a methacrylic resin material, and the second solid component is an epoxy resin material or a methacrylic resin material; The microstructure includes multiple folds and protrusions, the width of which is 3 to 10 micrometers and the thickness of which is 1 to 5 micrometers.

3. The display panel according to claim 1, characterized in that, The display panel also includes a black matrix, which has multiple cutouts corresponding to the multiple opening areas, and multiple light-filtering parts are disposed within the multiple cutouts. The protective layer further includes an extension that covers the black matrix, and a microstructure is provided on the side of the extension away from the black matrix.

4. The display panel according to claim 1, characterized in that, The encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer. The organic encapsulation layer is disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer. The first inorganic encapsulation layer is disposed on the light-emitting unit, and the second inorganic encapsulation layer is disposed on the organic encapsulation layer. The organic encapsulation layer includes a first organic layer and a second organic layer, wherein the first organic layer is disposed under the second organic layer; The first organic layer is formed using an organic material comprising at least a first solid inclusion and a second solid inclusion; The first organic layer forms a wrinkled structure on the side near the second organic layer.

5. A display device, characterized in that, The device includes a driving circuit and a display panel as described in any one of claims 1-4, wherein the driving circuit is used to drive the display panel to display.

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