Low-flash-point anti-glare display panel and display device

Abstract

The invention provides a low-flash-point anti-glare display panel and a display device. The display panel comprises a substrate, a light-emitting layer, a diffusion layer and an anti-glare layer which are arranged in a stacked mode in the first direction. The substrate is located on the backlight side of the light-emitting layer, the diffusion layer is located on the light-emitting side of the light-emitting layer, and the anti-glare layer is located on the side, away from the light-emitting layer, of the diffusion layer; the diffusion layer comprises a first medium and a second medium, the second medium is distributed in the first medium along a second direction, the second direction is perpendicular to the first direction, and the refractive index of the second medium is greater than that of the first medium. When light emitted by the light-emitting layer is to be emitted to the first medium from the second medium, due to the fact that the refractive index of the second medium is larger than that of the first medium, the light can be reflected in the second medium until the light is emitted to the anti-glare layer, due to the fact that the light is scattered, generation of random moire fringes is reduced, and flash points are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display panels and display devices, and in particular to a low-flash point anti-glare display panel and a display device. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the disclosure that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] When a screen without anti-glare function is exposed to strong external light, glare will occur due to mirror reflection, which will interfere with the user's reading of the screen.

[0004] In the related art, in order to achieve an anti-glare effect, the surface of the screen is usually designed to be a frosted matte surface, so that the external strong light is changed from mirror reflection to diffuse reflection, thus no glare is generated.

[0005] However, the frosted anti-glare layer with random microstructure interacts with the regular pixel array of the display to form random moiré fringes, which appear as small dot-like flickers. When the observer's head moves towards the display, it becomes particularly obvious, showing a shimmering vision, causing people to feel focusing problems and eye fatigue. This small dot-like flicker is called sparkle defect. Summary of the invention

[0006] In view of this, the purpose of the present disclosure is to provide a low flash point anti-glare display panel and a display device, which at least to a certain extent solve one of the technical problems in the related art.

[0007] Based on the above purpose, the first aspect of the exemplary embodiment of the present disclosure provides a low flash point anti-glare display panel, including:

[0008] A base substrate, a light emitting layer, a diffusion layer and an anti-glare layer stacked along a first direction;

[0009] The base substrate is located on the backlight side of the light-emitting layer, the diffusion layer is located on the light-emitting side of the light-emitting layer, and the anti-glare layer is located on the side of the diffusion layer away from the light-emitting layer;

[0010] The diffusion layer includes a first medium and a second medium. The second medium is distributed in the first medium along a second direction. The second direction is perpendicular to the first direction. The refractive index of the second medium is greater than that of the first medium.

[0011] In some exemplary embodiments, the second medium includes a strip-shaped structure.

[0012] In some exemplary embodiments, an axis of the second medium is parallel to the first direction.

[0013] In some exemplary embodiments, there is a deflection angle between the axis of the second medium and the first direction.

[0014] In some exemplary embodiments, the diffusion layer includes at least two groups of the second media stacked along the first direction.

[0015] In some exemplary embodiments, the deflection angles between the axes of different groups of the second media and the first direction are different.

[0016] In some exemplary embodiments, a diameter of the second medium is smaller than one tenth of a size of a sub-pixel of the light emitting layer.

[0017] In some exemplary embodiments, a distance between adjacent second media is smaller than one tenth of a size of a sub-pixel of the light-emitting layer.

[0018] In some exemplary embodiments, the diffusion layer has a thickness of 10 μm to 90 μm.

[0019] Based on the same inventive concept, a second aspect of the exemplary embodiments of the present disclosure provides a low-flash point anti-glare display device, comprising the display panel as described in the first aspect.

[0020] It can be seen from the above that the low flash point anti-glare display panel and display device provided by the embodiment of the present disclosure include: a base substrate, a light emitting layer, a diffusion layer and an anti-glare layer stacked along a first direction; the base substrate is located on the backlight side of the light emitting layer, the diffusion layer is located on the light emitting side of the light emitting layer, and the anti-glare layer is located on the side of the diffusion layer away from the light emitting layer; the diffusion layer includes a first medium and a second medium, the second medium is distributed and arranged in the first medium along a second direction, the second direction is perpendicular to the first direction, and the refractive index of the second medium is greater than that of the first medium. When the light emitted by the light emitting layer is about to be emitted from the second medium to the first medium, since the refractive index of the second medium is greater than that of the first medium, the light will be reflected in the second medium until it is emitted to the anti-glare layer, and since the light is scattered, the generation of random moiré fringes is reduced, and the appearance of flash points is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present disclosure or related technologies, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1aA schematic diagram of a screen without anti-glare function;

[0023] Figure 1b A schematic diagram of a screen with anti-glare function;

[0024] Figure 1c A schematic diagram of the light path of a screen without anti-glare function;

[0025] Figure 1d A schematic diagram of the optical path of a screen with anti-glare function;

[0026] Figure 1e is another schematic diagram of the light path of a screen with anti-glare function;

[0027] Figure 2 A schematic structural diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure;

[0028] Figure 3a This is a schematic diagram of the display effect of the green pixel before the light is scattered under the microscope;

[0029] Figure 3b This is a schematic diagram of the display effect after the light of the green pixel is scattered under a microscope;

[0030] Figure 4 A schematic diagram of sub-pixel size provided for an exemplary embodiment of the present disclosure;

[0031] Figure 5 A schematic diagram of the microstructure of a diffusion layer provided for an exemplary embodiment of the present disclosure;

[0032] Figure 6a Another structural schematic diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure;

[0033] Figure 6b Another structural schematic diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure;

[0034] Figure 7 Another structural schematic diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure;

[0035] Figure 8 Another microscopic structural diagram of a diffusion layer provided for an exemplary embodiment of the present disclosure;

[0036] Fig. 9 Another structural schematic diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure;

[0037] Fig.10Another schematic structural diagram of a low-flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present disclosure more clear, the principles and spirit of the present disclosure will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and implement the present disclosure, and are not intended to limit the scope of the present disclosure in any way. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0039] It should be understood herein that any number of elements in the drawings is for illustration rather than limitation, and any naming is only for distinction rather than having any limiting meaning.

[0040] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connecting" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The article "one" or "a" before an element does not exclude the existence of multiple such elements.

[0041] The principle and spirit of the present disclosure are explained in detail below with reference to several representative embodiments of the present disclosure.

[0042] refer to Figure 1a The surface of a screen without anti-glare function is smooth. When exposed to strong external light, the smooth surface will produce mirror reflection, resulting in the generation of glare areas, which will interfere with the user's reading of the screen.

[0043] refer to Figure 1b The surface of the screen with anti-glare function is rough. When exposed to strong external light, the rough surface will produce diffuse reflection, thereby avoiding the generation of glare areas and improving the user's reading effect.

[0044] Specifically, the surface of the screen with anti-glare function is a cover plate with AG (Anti-Glare), and the surface of the cover plate is designed to be a frosted matte surface.

[0045] The inventors of the present disclosure discovered that the AG cover glass of the screen with anti-glare function in the related art will produce small dot-shaped flicker compared to the ordinary cover glass of the screen without anti-glare function. When the observer's head moves towards the display, it will become particularly obvious, showing a shimmering visual effect, causing people to feel focusing problems and eye fatigue. This small dot-shaped flicker is called flash point defect.

[0046] Furthermore, the inventors of the present disclosure have also found that the reasons for the poor flash point in the above-mentioned related technologies are:

[0047] The frosted, random microstructured anti-glare layer interacts with the regular pixel array of the display to form random moiré fringes, which appear as small dot-like flashes.

[0048] refer to Figure 1c , a screen without anti-glare function will not affect the light path emitted by the screen itself, so no flash points will be generated.

[0049] refer to Figure 1d The screen with anti-glare function has rough and uneven pits on its surface, which is the scattering anti-glare layer. It will affect the light path emitted by the screen itself. The random microstructured anti-glare layer interacts with the regular pixel array of the display to form random moiré fringes, which are small point-like flashes.

[0050] Specifically, the particle uniformity of the AG surface is an important factor affecting the flash point. If the particles are small and uniform, the flash point is slight. If the particle size difference is very large, the flash point is more severe. Therefore, in the related art, the flash point of the AG surface is reduced mainly by reducing the surface roughness. However, it has great limitations because the flash point is negatively correlated with the PPI. The lower the PPI, the more severe the flash point. Obviously, reducing the surface roughness cannot solve this problem.

[0051] refer to Figure 1e , which shows a more detailed light path when a screen with anti-glare function produces flash points. Among them, due to the rough and uneven pits on the surface of the OLED screen with anti-glare function (Anti-Glare), the light path emitted by the screen itself is affected, and flash points (Bright) formed by the concentration of light paths and dark areas (Dark) formed by the deviation of light paths will be generated, which will interfere with the user (Viewer) reading the screen.

[0052] In order to solve the above problems, the present disclosure provides a low flash point anti-glare display panel and display device, which can be applied to the field of OLED display folding, such as the field of rigid glass substrate folding. The display panel includes: a base substrate, a light-emitting layer, a diffusion layer and an anti-glare layer stacked along a first direction; the base substrate is located on the backlight side of the light-emitting layer, the diffusion layer is located on the light-emitting side of the light-emitting layer, and the anti-glare layer is located on the side of the diffusion layer away from the light-emitting layer; the diffusion layer includes a first medium and a second medium, the second medium is distributed in the first medium along a second direction, the second direction is perpendicular to the first direction, and the refractive index of the second medium is greater than that of the first medium.

[0053] Among them, when the light emitted by the light-emitting layer is about to be emitted from the second medium to the first medium, since the refractive index of the second medium is greater than that of the first medium, the light will be reflected in the second medium until it is emitted to the anti-glare layer. Since the light is scattered, the generation of random moiré fringes is reduced and the appearance of flash points is reduced.

[0054] The present invention achieves the anti-glare effect by optimizing the surface of CG (Crystal Gloss) to obtain AG. Specifically, the original glass reflective surface is changed into a matte surface (with uneven granular surface) by chemical etching or spraying, and the roughness of the glass surface is changed, so that the surface has a matte effect, thereby achieving the effect of diffuse reflection.

[0055] The designed diffusion layer breaks up one light path into nine light paths, thereby achieving the effect of eliminating flash points (Anti-Sparkle).

[0056] After introducing the basic principles of the present disclosure, various non-limiting embodiments of the present disclosure are described in detail below.

[0057] refer to Figure 2 , which is a structural schematic diagram of a low flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure.

[0058] Low flash point anti-glare display panel, including:

[0059] The base substrate 100, the light emitting layer 200, the diffusion layer 300 and the anti-glare layer 400 are stacked along a first direction.

[0060] In this exemplary embodiment, the base substrate 100 is located on the backlight side of the light emitting layer 200 .

[0061] Among them, the base substrate 100 is the foundation of the display device, and it is the supporting structure of all other functional layers. In OLED (organic light emitting diode) technology, the base substrate 100 can be rigid, such as glass, or flexible, such as plastic. The base substrate 100 not only provides mechanical support, but also provides the functions of heat conduction and electrical insulation.

[0062] In a specific implementation, the base substrate 100 includes a rigid glass substrate and a flexible plastic substrate.

[0063] In this exemplary embodiment, the diffusion layer 300 is located on the light emitting side of the light emitting layer 200 .

[0064] The diffusion layer 300 provided in the present disclosure is used to disperse the light emitted by the light-emitting layer 200 to reduce the generation of random moiré fringes and the occurrence of flash points.

[0065] In this exemplary embodiment, the diffusion layer 300 has a thickness of 10 μm to 90 μm.

[0066] As a specific example, the diffusion layer 300 has a thickness of 10 μm, 20 μm, 60 μm or 90 μm.

[0067] In this exemplary embodiment, the diffusion layer 300 includes a first medium 302 and a second medium 304 . The second medium 304 is distributed in the first medium 302 along a second direction that is perpendicular to the first direction. The refractive index of the second medium 304 is greater than that of the first medium 302 .

[0068] In specific implementation, since the refractive index of the second medium 304 is greater than that of the first medium 302 , when the light emitted by the light emitting layer 200 passes through the second medium 304 , it is totally reflected in the second medium 304 , and after exiting the diffusion layer 300 , the light emitted by the light emitting layer 200 is dispersed.

[0069] refer to Figure 3a , which shows the display effect of the green pixel under the microscope before the light is scattered, reference Figure 3b , which shows the display effect after the light of the green pixel is scattered under a microscope.

[0070] In this exemplary embodiment, the second medium 304 includes a strip structure.

[0071] In a specific implementation, the second medium 304 is a thin and long fiber structure, and the shape can be a cylinder or a cuboid.

[0072] In this exemplary embodiment, the diameter of the second medium 304 is smaller than one tenth of the size of the sub-pixel 202 of the light emitting layer 200 .

[0073] In specific implementation, diameter refers to the distance between the center and two points on the edge of a plane figure or solid (such as a circle, conic section, sphere, cube).

[0074] In a specific implementation, each pixel unit is composed of a plurality of sub-pixels 202, usually red, green and blue (RGB). These sub-pixels 202 produce the desired color through different brightness combinations.

[0075] In this exemplary embodiment, the distance between adjacent second media 304 is less than one tenth of the size of the sub-pixel 202 of the light emitting layer 200 .

[0076] refer to Figure 4 As a specific example, when the size of the sub-pixel 202 is 20μm to 60μm, assuming that the size of the R sub-pixel in the sub-pixel 202 is 26μm*26μm, the size of the G sub-pixel is 26μm*32μm, and the size of the B sub-pixel is 32μm*52μm, the distance between the R sub-pixel and the G sub-pixel is 19μm, and the distance between the G sub-pixel and the B sub-pixel is 19μm.

[0077] For the sub-pixel 202 of the above size, the diameter of the second medium 304 is 0.1 μm to 1 μm, and the spacing between adjacent second mediums 304 is 0.1 μm to 1 μm.

[0078] In this exemplary embodiment, the axis of the second medium 304 is parallel to the first direction.

[0079] refer to Figure 5 , which is a microstructure of the diffusion layer 300 .

[0080] It should be noted that the reference Figure 5 It can be seen that the second medium 304 in the diffusion layer 300 is not straight in the actual product. This is because the second medium 304 is a fiber structure with an extremely fine diameter and has a certain irregular curvature. The axis of the second medium 304 is defined as being parallel to the first direction in the aforementioned exemplary embodiment only to describe its orientation.

[0081] In a specific implementation, the axis of the second medium 304 is parallel to the first direction, so that the light emitted by the light emitting layer 200 is totally reflected in the second medium 304 when passing through the second medium 304 .

[0082] It should be noted that when light is incident from a denser medium to a less dense medium, when the incident angle exceeds a certain angle C (critical angle), the refracted light disappears completely. The incident angle of the short side is small and total reflection will not occur. Total reflection will only occur when the incident angle of the long side is greater than the critical angle.

[0083] In this exemplary embodiment, the anti-glare layer 400 is located on a side of the diffusion layer 300 away from the light-emitting layer 200 .

[0084] The anti-glare layer 400 is used for anti-glare.

[0085] It should be noted that the anti-glare technologies in the related art can be used to realize the anti-glare layer 400 in the present disclosure. The improvement of the present disclosure is to reduce the flash point generated by the anti-glare layer 400 through the diffusion layer 300, rather than improving the anti-glare layer 400 itself.

[0086] In practice, anti-glare technology can be achieved by adding special coatings or textures to the surface of glass or plastic. The specific implementation methods of anti-glare technology include:

[0087] By chemical etching or spraying, the original reflective surface of the glass is changed into a matte surface (the surface is uneven and granular), and the roughness of the glass surface is changed, so that the surface has a matte effect and achieves the effect of diffuse reflection.

[0088] Utilizing the scattering ability of microparticles, the scattering type of microparticles with a particle diameter close to the wavelength of light is basically Mie scattering. In this case, the side scattering is more, so a large part of the incident light is reflected as diffuse reflection.

[0089] The panel technology combines anti-glare coating and low-reflection coating to reduce screen reflections and improve contrast performance while maintaining excellent image brightness, detail and clarity.

[0090] In the above exemplary embodiments, only the core structure of the low flash point anti-glare display panel provided by the exemplary embodiments of the present disclosure is introduced. Figure 2 In some possible implementations, there are some necessary connecting structures between these core structures, such as PDL layer, CVD and TFE.

[0091] In specific implementation, the PDL layer is located between the substrate such as the TFT (Thin Film Transistor) backplane and the OLED light-emitting layer. Its function is to form the physical boundary of each sub-pixel and ensure the independent light emission of each sub-pixel, thereby improving the display resolution and color accuracy.

[0092] PDL (Pixel Definition Layer) is an important component in OLED display technology. It is located below the OLED layer and its main function is to separate and define each sub-pixel to ensure that OLED colors do not interfere with each other. PDL forms a pattern on the panel through exposure (a photolithography process used in TFT production) to leave space for organic light-emitting materials (sub-pixels).

[0093] PDL usually uses polyimide (PI) material and forms a specific structure on the panel through a photolithography process. It not only defines the shape and size of the pixels, but also ensures the isolation between pixels, prevents crosstalk, and at the same time improves the aperture ratio of the device and enhances the display effect.

[0094] In the production process of OLED displays, PDL is the last mask located below the OLED layer in the TFT process. It is a relatively thick layer that is used to define each sub-pixel so that the OLED colors do not interfere with each other. PDL prevents the electrodes of the sub-pixels from shorting and ensures that the organic materials do not overflow into the defined areas and mix.

[0095] PDL is a key layer used to define and separate pixels in OLED display technology, and it plays a vital role in improving display effects and device performance.

[0096] In specific implementation, CVD (Chemical Vapor Deposition) technology is applied in display screen manufacturing. CVD is a technology for depositing thin films on a substrate, which forms thin films through chemical reactions between gas and solid materials.

[0097] CVD technology can also be used to deposit various barrier and insulating layers to ensure electronic and optical performance in the display.

[0098] The advantage of CVD technology is that it can be carried out at low temperatures, which is very important for sensitive semiconductor devices and display components. In addition, CVD technology can achieve high-purity, high-uniformity and high-adhesion thin film deposition, which is crucial to improving the performance and reliability of display screens.

[0099] In display manufacturing, the specific application of CVD technology may involve a variety of different chemical gases and reaction conditions to meet the requirements of different materials and performance.

[0100] In specific implementation, TFE (Thin Film Encapsulation) is one of the key technologies in flexible OLED displays. Since the organic light-emitting materials in OLED displays are very sensitive to water vapor and oxygen, these factors will cause the performance of the display to deteriorate, so an effective encapsulation technology is needed to protect the organic materials and extend the service life of the display.

[0101] In traditional rigid OLEDs, glass is often used as an encapsulation material, but due to the lack of flexibility of glass, it is not suitable for flexible displays. Therefore, flexible OLED displays use thin film encapsulation technology, which uses multiple layers of thin films to replace glass encapsulation to provide the necessary protection. TFE technology prevents external contamination by stacking inorganic and organic films on the organic material layer. The inorganic film can prevent the penetration of water vapor and oxygen, but since the properties of the inorganic film are uneven, inserting the organic film helps stabilize the inorganic film.

[0102] The multi-layer structure design of TFE makes the permeation path of water vapor and oxygen longer, making it difficult for them to reach the light-emitting layer. This encapsulation method not only provides flexibility, but also effectively blocks water vapor and oxygen, protecting the organic layer of the OLED display from damage.

[0103] TFE is one of the key technologies to realize flexible OLED displays. It ensures the high performance and long life of the display by providing effective encapsulation protection.

[0104] In the above exemplary embodiments, only the necessary structure of the low flash point anti-glare display panel provided by the exemplary embodiments of the present disclosure is introduced. In some possible implementations, the low flash point anti-glare display panel may also include other structures, such as a polarizer layer (POL) and an optical adhesive layer (OCA). Specifically:

[0105] refer to Figure 6a , low flash point anti-glare display panel, including:

[0106] A base substrate (PANEL, a light emitting layer is arranged on the base substrate), a diffusion layer, a polarizer layer (POL), an optical adhesive layer (OCA) and a crystal glossy coating (CG) are stacked along a first direction.

[0107] refer to Figure 6b , low flash point anti-glare display panel, including:

[0108] A substrate (PANEL, a light-emitting layer is arranged on the substrate), a polarizer layer (POL), a diffusion layer, an optical adhesive layer (OCA) and a crystal glossy coating (CG) are stacked along a first direction.

[0109] In specific implementation, Crystal Gloss (CG) is applied to the surface of the display to provide higher optical transparency and more vivid color performance. CG coating forms a smooth surface on the display, making the image sharper and brighter, while also providing a better touch experience. CG coating can also reduce the presence of fingerprints and stains, making the screen easier to clean.

[0110] In this exemplary implementation, the reflective surface of the glass with a crystal glossy coating is changed into a matte surface (a granular surface with uneven surfaces) by chemical etching or spraying, and the roughness of the glass surface is changed, so that the surface has a matte effect and achieves a diffuse reflection effect. Spraying AG is to atomize the active AG liquid into small particles, spray it onto the surface of the glass or film, and form a rough coating, which is dried and solidified to achieve an anti-glare effect. Etched AG usually refers to frosted AG, which uses a solution made of frosted powder to wash the glass surface, supplemented by chemical corrosion, to perform a matte diffuse reflection treatment on the surface.

[0111] In specific implementation, the application of optical adhesive layer (OCA) in the field of display screens is mainly used as one of the raw materials of touch screens, used for bonding materials on touch screens, and plays a capacitive touch sensing effect. Its advantages include reducing glare, increasing contrast, improving strength, avoiding Newton rings, making the product surface smoother, and expanding the visible area without borders. The die-cutting processing of OCA optical adhesive can have a variety of structures, such as protective film + heavy release + OCA adhesive + light release.

[0112] In new display technologies such as foldable screen mobile phones, OCA has bendable properties.

[0113] In specific implementation, the main function of the polarizer layer (POL) polarizer is to control the polarization direction of a specific light beam. When natural light passes through the polarizer, only the light whose vibration direction is parallel to the transmission axis of the polarizer can pass through, while the light perpendicular to the transmission axis is absorbed, thereby generating polarized light.

[0114] In OLED (organic light-emitting diode) displays, polarizers are used mainly to reduce the reflection interference of external ambient light and improve display contrast. OLED displays do not require backlights or color filters, but in order to reduce the reflection of ambient light, circular polarizers are usually added externally. This circular polarizer consists of a linear polarizer and a quarter-wave plate, which can convert natural light into circularly polarized light, and then through a series of conversions, ultimately suppress the reflection interference of external ambient light.

[0115] refer to Figure 7 , which is another structural schematic diagram of a low-flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure.

[0116] With Figure 2 The difference between the illustrated embodiment and the illustrated embodiment is that, in this exemplary embodiment, the diffusion layer 300 includes at least two groups of the second medium 304 stacked along the first direction.

[0117] In the specific implementation, considering that in high PPI projects, the sub-pixels 202 are relatively dense and the size of the sub-pixels 202 is relatively small, for example, less than 20 μm. In this case, the effect of scattering light by a layer of the second medium 304 is not obvious. In this case, at least one layer of the second medium 304 is added to improve the effect of scattering light.

[0118] In a specific implementation, the diameter and spacing of the second medium 304 in the two layers of the second medium 304 can be adjusted according to actual needs, on the basis that the diameter of the second medium 304 is smaller than one tenth of the size of the sub-pixel 202 of the light-emitting layer 200, and the spacing between adjacent second media 304 is smaller than one tenth of the size of the sub-pixel 202 of the light-emitting layer 200.

[0119] As a specific example, a layer of the second medium 304 closer to the anti-glare layer 400 has a larger diameter and a larger spacing than a layer of the second medium 304 closer to the anti-glare layer 400 .

[0120] refer to Figure 8 , which is another structural schematic diagram of a low-flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure.

[0121] With Figure 2 The difference between the illustrated embodiment is that, in this exemplary embodiment, there is a deflection angle between the axis of the second medium 304 and the first direction.

[0122] During specific implementation, the deflection angle is less than 15°.

[0123] In specific implementation, there is a deflection angle between the axis of the second medium 304 and the first direction, which can not only achieve the effect of total reflection in the second medium 304 when the light emitted by the light-emitting layer 200 passes through the second medium 304, but also achieve the effect of directional diffusion of light.

[0124] refer to Fig. 9 , which is a microstructure of the diffusion layer 300 .

[0125] It should be noted that, reference Fig. 9 It can be seen that the second medium 304 in the diffusion layer 300 is not straight in the actual product. This is because the second medium 304 is a fiber structure with an extremely fine diameter and has a certain irregular curvature. The deflection angle between the axis of the second medium 304 and the first direction defined in the aforementioned exemplary embodiment is only for describing its orientation.

[0126] Through the effect of directional diffusion of light, this exemplary embodiment can be applied to some directional anti-peep products, such as anti-peep screen for the co-pilot of a vehicle, so that the driver cannot see the co-pilot screen clearly.

[0127] refer to Fig.10 , which is another structural schematic diagram of a low-flash point anti-glare display panel provided by an exemplary embodiment of the present disclosure.

[0128] With Figure 2 The difference between the illustrated embodiments is that, in this exemplary embodiment, the diffusion layer 300 includes at least two groups of second media 304 stacked along the first direction, and the deflection angles between the axes of different groups of second media 304 and the first direction are different.

[0129] In specific implementation, there is a deflection angle between the axis of the second medium 304 and the first direction, which can not only achieve the effect of total reflection in the second medium 304 when the light emitted by the light-emitting layer 200 passes through the second medium 304, but also achieve the effect of directional diffusion of light.

[0130] Furthermore, a diffusion structure with a two-way deflection angle is used to focus the light in a vertical direction, which is suitable for products such as mobile phones and notebooks that require a wide viewing angle for privacy protection.

[0131] Based on the same inventive concept, corresponding to the display panel of any of the above embodiments, the present disclosure further provides a low flash point anti-glare display device, including the display panel as described in any of the above exemplary embodiments.

[0132] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0133] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0134] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

[0135] Although the spirit and principle of the present disclosure have been described with reference to several specific embodiments, it should be understood that the present disclosure is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present disclosure is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims. The scope of the attached claims conforms to the broadest interpretation, thereby including all such modifications and equivalent structures and functions.

Claims

1. A low flash point anti-glare display panel, characterized in that: include: A base substrate, a light emitting layer, a diffusion layer and an anti-glare layer stacked along a first direction; The base substrate is located on the backlight side of the light-emitting layer, the diffusion layer is located on the light-emitting side of the light-emitting layer, and the anti-glare layer is located on the side of the diffusion layer away from the light-emitting layer; The diffusion layer includes a first medium and a second medium. The second medium is distributed in the first medium along a second direction. The second direction is perpendicular to the first direction. The refractive index of the second medium is greater than that of the first medium.

2. The display panel according to claim 1, characterized in that: The second medium includes a strip-shaped structure.

3. The display panel according to claim 2, characterized in that: The axis of the second medium is parallel to the first direction.

4. The display panel according to claim 2, characterized in that: There is a deflection angle between the axis of the second medium and the first direction.

5. The display panel according to claim 2, characterized in that: The diffusion layer includes at least two groups of the second media stacked along the first direction.

6. The display panel according to claim 5, characterized in that: The deflection angles between the axes of different groups of the second media and the first direction are different.

7. The display panel according to claim 2, characterized in that: The diameter of the second medium is smaller than one tenth of the size of a sub-pixel of the light-emitting layer.

8. The display panel according to claim 2, characterized in that: The distance between adjacent second media is smaller than one tenth of the size of the sub-pixel of the light-emitting layer.

9. The display panel according to claim 1, characterized in that: The diffusion layer has a thickness of 10 μm to 90 μm.

10. A low flash point anti-glare display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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