OLED display panel and display device

Abstract

The invention discloses an OLED display panel and a display device. The OLED display panel comprises a driving backboard (1), an OLED light-emitting device (2), a packaging structure (3) and a color resistance structure (4), wherein the OLED light-emitting device (2), the packaging structure (3) and the color resistance structure (4) are arranged on the driving backboard (1); wherein the packaging structure (3) and the color resistance structure (4) are located on the side, away from the driving backboard (1), of the OLED light-emitting device (2), and the color resistance structure (4) comprises a color resistance layer (41), a first shading matrix (42) and a second shading matrix (43); the first shading matrix (42) is located on the side, away from the driving backboard (1), of the color resistance layer (41), and the second shading matrix (43) is located on the side, facing the driving backboard (1), of the color resistance layer (41). According to the OLED display panel, the color separation phenomenon of the display panel in a dark state can be weakened, and the color separation problem of the display panel in the dark state is improved.

Description

[0001] This application is a divisional application. The application number of the original application is 201980002509.0, and the original application date is November 20, 2019. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The present disclosure relates to the field of display technology, and in particular to an OLED display panel and a display device. Background Art

[0003] Organic electroluminescent display (OLED) has gradually begun to erode the market of liquid crystal display (LCD) due to its advantages such as faster response speed, thin thickness and high contrast. In particular, its ability to bend and bend has made it the preferred technology for flexible display devices.

[0004] Since there is a large amount of metal in the OLED light-emitting structure, the reflectivity of the external ambient light is high. Therefore, it is currently generally adopted to attach a circular polarizer to reduce the reflection of the OLED substrate to the external ambient light. Moreover, after attaching the circular polarizer, a flexible touch substrate is generally attached. However, the flexible touch substrate and the circular polarizer are both thick, which will affect the flexibility and folding performance of the entire OLED module. In view of this, in order to achieve a better folding effect and reduce the bending radius, the COE (CF on Encapsulation) technology is currently proposed, that is, on the thin-film encapsulated light-emitting device, a low-temperature yellow light process is used to form a color resistance layer. This structure has the effects of reducing panel reflection, improving color purity, and reducing panel thickness. However, when the display panel of this structure is in the off state (also called dark state), there will be color separation under the illumination of point light source and line light source. So far, the cause and solution of this problem have not been clarified. Summary of the invention

[0005] The present application discloses an OLED display panel and a display device, the purpose of which is to improve the color separation phenomenon of the COE OLED display panel in a dark state.

[0006] In order to achieve the above objectives, the present disclosure provides the following technical solutions:

[0007] An OLED display panel comprises a driving backplane and an OLED light-emitting device, a packaging structure and a color-resistance structure arranged on the driving backplane; wherein the packaging structure and the color-resistance structure are located on a side of the OLED light-emitting device away from the driving backplane, and the color-resistance structure comprises a color-resistance layer, a first shading matrix and a second shading matrix; the first shading matrix is ​​located on a side of the color-resistance layer away from the driving backplane, and the second shading matrix is ​​located on a side of the color-resistance layer facing the driving backplane.

[0008] Optionally, at least one scattering layer is provided on a side of the OLED light-emitting device facing away from the driving backplane, and the scattering layer comprises an organic material film and scattering particles arranged in the organic material film.

[0009] Optionally, the encapsulation structure has two inorganic insulating layers and a first organic insulating layer located between the two inorganic insulating layers;

[0010] The first organic insulating layer is configured as the scattering layer.

[0011] Optionally, the color resist layer is configured as the scattering layer.

[0012] Optionally, the color resist layer includes red resist, green resist and blue resist, and the particle sizes of the scattering particles respectively included in the red resist, green resist and blue resist decrease in sequence.

[0013] Optionally, the display panel further includes a second organic insulating layer located between the encapsulation structure and the color resist structure;

[0014] The second organic insulating layer is configured as a scattering layer.

[0015] Optionally, the display panel further includes a touch structure located on a side of the packaging structure away from the driving backplane; the touch structure is located between the packaging structure and the color resist structure, or the touch structure is located on a side of the color resist structure away from the driving backplane.

[0016] Optionally, the display panel further includes a third organic insulating layer located between the touch structure and the color resist structure; the third organic insulating layer is configured as the scattering layer.

[0017] Optionally, the display panel further comprises a touch structure located on a side of the packaging structure away from the driving backplane, the touch structure comprising two layers of touch electrodes and a fourth organic insulating layer located between the two layers of touch electrodes;

[0018] The fourth organic insulating layer is configured as the scattering layer.

[0019] Optionally, the display panel further includes a touch structure located on a side of the packaging structure away from the driving backplane, and a fifth organic insulating layer located on a side of the touch structure and the color resist structure away from the driving backplane;

[0020] The fifth organic insulating layer is configured as the scattering layer.

[0021] Optionally, the scattering particles are inorganic scattering particles, and the inorganic scattering particles are one or a mixture of titanium oxide, zirconium oxide, silicon oxide, calcium carbonate, and barium sulfate.

[0022] Optionally, the particle size of the inorganic scattering particles is 40 nm to 700 nm, and the mass percentage of the inorganic scattering particles in the organic material film is 1% to 15%.

[0023] Optionally, the scattering particles are organic scattering particles, the ratio of the refractive index of the organic scattering particles to that of the organic material film is 0.7-0.99, and the mass percentage of the organic scattering particles in the organic material film is 5%-40%.

[0024] Optionally, the display panel includes a touch structure, and the touch structure is located on a side of the color resistance structure away from the driving backplane;

[0025] The display panel further includes a third light shielding matrix located on a side of the touch control structure away from the driving backplane.

[0026] Optionally, the OLED light-emitting device has a first electrode layer electrically connected to the driving backplane, and a surface of the first electrode layer facing away from the driving backplane is a rough surface.

[0027] Optionally, the driving backplane includes a flat layer facing the OLED light-emitting device, and the first electrode layer of the OLED light-emitting device is arranged on the flat layer;

[0028] The surface of the planarization layer is configured as a rough surface, so that the surface of the first electrode layer formed on the planarization layer is rough.

[0029] Optionally, the planar layer includes two film layers.

[0030] Optionally, the flat layer is made of silicone series, acrylic series, or epoxy resin series material.

[0031] A display device comprises any one of the above-mentioned OLED display panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a process in which external ambient light is reflected by the first electrode layer in each RGB pixel in the display panel;

[0033] Figure 2 A schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present disclosure;

[0034] Figure 3 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0035] Figure 4 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0036] Figure 5 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0037] Figure 6 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0038] Figure 7 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0039] Figure 8 A schematic diagram of a cross-sectional structure of a display panel provided in another embodiment of the present disclosure;

[0040] Fig. 9 The histogram of color separation degree of display panels with various different settings in dark state. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0042] like Figure 2 and Figure 7 As shown, an embodiment of the present disclosure provides an OLED display panel, including a driving backplane 1 and an OLED light-emitting device 2, a packaging structure 3 and a color-resistance structure 4 arranged on the driving backplane 1; wherein the packaging structure 3 and the color-resistance structure 4 are located on the side of the OLED light-emitting device 2 away from the driving backplane 1, and the color-resistance structure 4 includes a color-resistance layer 41, a first shading matrix 42 and a second shading matrix 43; the first shading matrix 42 is located on the side of the color-resistance layer 41 away from the driving backplane 1, and the second shading matrix 43 is located on the side of the color-resistance layer 41 facing the driving backplane 1.

[0043] The inventors have found through research that the surface of the electrode layer in the OLED light-emitting device 2 is smooth, which is equivalent to a reflector, and the light is directional mirror-reflected. The first electrode layer 21 electrically connected to the driving backplane 1 is prepared and formed on the driving backplane 1, and the source-drain electrode (SD) 10 and other structures provided in the driving backplane 1 will cause the surface of the first electrode layer 21 on the side away from the driving backplane 1 to be uneven, such as Figure 1As shown, after the external ambient light is reflected by the first electrode layer 21 in each RGB pixel, the reflected light will have different reflection paths or spatial distributions of light intensity, so the white balance on a certain path or spatial angle may be destroyed, so that different colors will be seen at different positions, which can easily lead to color separation of the reflected light of the display panel in the off state. In addition, the opening of the color-resistance structure has a certain diffraction effect on the reflected light, which will further enhance the phenomenon of color separation of the reflected light. Therefore, the display panel prepared using the COE (CF on Encapsulation) technology will have a more obvious color separation phenomenon in the dark state.

[0044] In view of this discovery, in the OLED display panel provided by the embodiment of the present disclosure, Figure 2 and Figure 7 As shown, the color resist structure 4 is designed to be in the form of a color resist layer 41 and two light-shielding matrix layers, and the two light-shielding matrix layers (a first light-shielding matrix 42 and a second light-shielding matrix 43) are respectively arranged on both sides of the color resist layer 41 to solve the color separation problem of the display panel in a dark state.

[0045] Conventional COE OLED display panels only have one layer of shading matrix, which is arranged on the side of the color resist layer facing the driving backplane. The inventors have found that using a double-layer shading matrix and arranging the double-layer shading matrix on both sides of the color resist layer can significantly reduce the color separation phenomenon of the display panel in the dark state.

[0046] Specifically, in the OLED display panel provided by the embodiment of the present disclosure, the double-layer shading matrix is ​​respectively arranged on both sides of the color resist layer, and may be adjacent to the color resist layer or not adjacent to the color resist layer; for example, Figure 2 and Figure 7 The arrangement shown in the figure is to arrange the first shading matrix 42, the color resist layer 41 and the second shading matrix 43 adjacent to each other in sequence; or, you can also refer to Figure 4 In the arrangement shown in , the second shading matrix 43 is arranged between the film layers of the packaging structure, so that the second shading matrix 43 is not adjacent to the color resist layer.

[0047] Specifically, Fig. 9 is a histogram of the color separation degree of the display panel in the dark state obtained according to the experimental data analysis results. max An indicator that characterizes the degree of color separation of a display panel in a dark state. Fig. 9There are four groups of histograms along the horizontal axis, which respectively represent the dark state reflected light experimental data results of four specific embodiments of the display panel. In the four specific embodiments, the display panel includes a driving backplane, an OLED light-emitting device, a packaging structure and a color resistance structure arranged in sequence; the driving backplane includes a glass substrate and a thin film transistor array (TFT array) located on the glass substrate, and the OLED light-emitting device includes an anode, a light-emitting structure and a cathode arranged in sequence; the display panels of the above four specific embodiments are different in that: in embodiment a, the driving backplane includes a flat layer located on the TFT array, and the anode (i.e., the first electrode layer) of the OLED light-emitting device is formed on the flat layer, and the flat layer adopts a conventional acrylic series material and is a single-layer film layer (i.e., a single-layer PLN); in embodiment b, the driving backplane includes a flat layer located on the TFT array, and the anode of the OLED light-emitting device is formed on the flat layer, and the flat layer adopts a conventional acrylic series material and has two film layers (i.e., a double-layer PLN); in embodiment c, the driving backplane includes a flat layer located on the TFT array, and the anode of the OLED light-emitting device is formed on the flat layer, and the flat layer is a single-layer film layer and adopts an organic silicon series material (i.e., SOG PLN); Example d, the anode of the OLED light-emitting device is directly formed on the glass substrate of the driving backplane, and the surface of the film layer is very flat (ie, a flat anode).

[0048] Specifically, Fig. 9 In the figure, each group of histograms has two experimental data, which are experimental data results obtained under two different color resist structures. The specific settings of the two different color resist structures are: A. Bottom layer BM, that is, the color resist structure includes a color resist layer and a layer of shading matrix (BM), and the shading matrix is ​​located on the side of the color resist layer facing the driving backplane. This color resist structure is the color resist structure of a conventional COE OLED display panel; B. Double layer BM, that is, the color resist structure includes a color resist layer and two layers of shading matrix, and the two layers of shading matrix are respectively arranged on both sides of the color resist layer. This color resist structure is a color resist structure of the OLED display panel of the embodiment of the present disclosure.

[0049] like Fig. 9 As shown, by comparing the two data A and B in the four groups of histograms, it can be seen that the ΔΕab of data B in each group of experimental data is max Compared with data A, the ΔΕab of data B in the three histograms a, c, and d is significantly reduced. max It is roughly 1 / 2 of data A, and the ΔΕab of data B in group b histogram is maxIt is even close to 1 / 3 of data A. It can be directly concluded from the above data results that the double-layer BM setting can significantly reduce the color separation degree of the reflected light of the display panel in the dark state compared with the bottom BM setting. In other words, compared with the conventional setting of only setting a layer of BM on the side of the color resist layer facing the driving backplane, the double-layer BM layer is set on both sides of the color resist layer, which can effectively reduce the color separation degree of the reflected light of the display panel in the dark state. It can be verified that the display panel of the embodiment of the present disclosure can significantly reduce the color separation degree of the reflected light in the dark state.

[0050] In a specific embodiment, Figures 3 to 8 As shown, the OLED display panel provided by the embodiment of the present disclosure has at least one scattering layer 6 on the side of the OLED light-emitting device 2 away from the driving backplane 1, and the scattering layer 6 includes an organic material film and scattering particles (also called light diffusion particles) 61 arranged in the organic material film. Optionally, the scattering particles can be uniformly distributed in the organic material film.

[0051] In the OLED display panel provided by the embodiment of the present disclosure, a scattering layer 6 is provided on the light-emitting side of the OLED light-emitting device 2. The scattering particles 61 in the scattering layer 6 can scatter the light so that the path of the reflected light or the spatial distribution of the light intensity in each pixel is more uniform, thereby reducing the color separation phenomenon caused by the directional reflection of the first electrode layer 21, thereby achieving the effect of further improving the color separation phenomenon of the display panel.

[0052] Optionally, the scattering particles 61 may be inorganic scattering particles, and the inorganic scattering particles may be one or a mixture of zirconium oxide, silicon oxide, calcium carbonate, barium sulfate, titanium dioxide (titanium oxide), and specifically may be a mixture of powders of different materials.

[0053] Optionally, the particle size of the inorganic scattering particles may be 40 nm to 700 nm, and the mass percentage of the inorganic scattering particles in the organic material film may be 1% to 15%.

[0054] Optionally, the scattering particles 61 may be organic scattering particles, which may be one or a mixture of microspheres such as silicone microspheres, polyacrylic acid series, polymethyl methacrylate (PMMA), polystyrene (PS), etc., and the refractive index of the organic scattering particles is less than the refractive index of the organic material film.

[0055] Optionally, the ratio of the refractive index of the organic scattering particles to the organic material film is between 0.7-0.99, and the refractive index may specifically be between 1.2-1.6; further optionally, the mass percentage of the organic scattering particles in the organic material film is between 5% and 40%.

[0056] In a specific implementation manner, Figure 2 , Figure 3 and Figure 7 As shown, the encapsulation structure 3 has two inorganic insulating layers 31 and a first organic insulating layer 32 located between the two inorganic insulating layers 31 .

[0057] Optional, such as Figure 3 As shown, the first organic insulating layer 32 is configured as a scattering layer 6 , that is, the first organic insulating layer 32 includes an organic material film and scattering particles 61 disposed in the organic material film.

[0058] Of course, the encapsulation structure 3 is not limited to the above three layers, but may also be a structure of more than three layers of alternating organic and inorganic layers.

[0059] In a specific implementation manner, Figure 2 , Figure 4 and Figure 7 As shown, the color resist structure 4 has a color resist layer 41 .

[0060] Optional, such as Figure 4 As shown, the color resist layer 41 is configured as a scattering layer 6. That is, the color resist layer 41 includes an organic material film and scattering particles 61 disposed in the organic material film.

[0061] Exemplarily, the color resist layer 41 specifically includes red resist, green resist and blue resist. Specifically, the particle sizes of the scattering particles 61 respectively contained in the red resist, the green resist and the blue resist can be reduced in sequence, and can be specifically matched with the wavelength of the output light of each resist. For example, the particle size of the scattering particles 61 contained in the red resist can be 1 / 5λ~λ, where λ is the wavelength of red light; the size setting of the scattering particles 61 in the green resist and the blue resist is similar. In this way, when each color light encounters the scattering particles 1, not only a scattering effect can be generated, but also a diffraction phenomenon can occur, thereby further increasing the uniformity of the path of the reflected light in each pixel or the spatial distribution of the light intensity, so as to further improve the color separation phenomenon of the display panel.

[0062] In a specific implementation manner, Figure 7 As shown, the display panel of the embodiment of the present disclosure may include a second organic insulating layer 71 located between the encapsulation structure 3 and the color resist structure 4. The second organic insulating layer 71 is configured as a scattering layer 6, that is, the second organic insulating layer includes an organic material film and scattering particles 61 disposed in the organic material film.

[0063] In a specific implementation manner, Figure 2 , Figure 6 and Figure 8As shown, the OLED display panel provided by the embodiment of the present disclosure may further include a touch structure 5 located on a side of the packaging structure 3 away from the driving backplane 1 , and a third organic insulating layer 72 located between the touch structure 5 and the color resist structure 4 .

[0064] For example, the touch structure 5 can be disposed between the color resist structure 4 and the packaging structure 3. Figures 2 to 6 Alternatively, the touch structure 5 may also be disposed on the side of the color resist structure 4 away from the packaging structure 3, for details, see Figure 7 and Figure 8 .

[0065] For example, Figure 6 and Figure 8 As shown, the third organic insulating layer 72 is configured as the scattering layer 6 , that is, the third organic insulating layer 72 includes an organic material film and scattering particles 61 disposed in the organic material film.

[0066] For example, Figure 2 and Figure 7 As shown, the touch control structure 5 has two layers of touch control electrodes 51 and a fourth organic insulating layer 52 located between the two layers of touch control electrodes 51 .

[0067] Optionally, the fourth organic insulating layer 52 may also be configured as a scattering layer 6 , that is, the fourth organic insulating layer 52 includes an organic material film and scattering particles 61 disposed in the organic material film.

[0068] Exemplarily, the two layers of touch electrodes 51 are respectively two layers of driving electrodes and sensing electrodes made of metal.

[0069] In a specific implementation manner, Figure 7 and Figure 8 As shown, when the touch structure 5 is located on the side of the color-resistance structure 4 away from the packaging structure 3, the display panel provided by the embodiment of the present disclosure may further include a third light-shielding matrix 9 located on the side of the touch structure 5 away from the driving backplane 1. Specifically, the third light-shielding matrix 9 can block the light reflected by the touch electrode from being emitted, so as to reduce the reflection of the display panel to the external ambient light.

[0070] In a specific implementation manner, Figure 2 , Figure 5 and Figure 7 As shown, the OLED display panel provided by the embodiment of the present disclosure further includes a fifth organic insulating layer 73 located on the side of the color resist structure 4 and the touch control structure 5 away from the driving backplane 1 .

[0071] For example, Figure 5As shown, the fifth organic insulating layer 73 may be configured as the scattering layer 6 , that is, the fifth organic insulating layer 73 includes an organic material film and scattering particles 61 disposed in the organic material film.

[0072] In a specific embodiment, Figure 2 As shown, the OLED light emitting device 2 has a first electrode layer 21 electrically connected to the driving backplane 1, and the surface of the first electrode layer 21 facing away from the driving backplane 1 is a rough surface.

[0073] In the OLED display panel provided by the embodiment of the present disclosure, the surface of the first electrode layer 21 on the side facing away from the driving backplane 1 is set to be a rough surface, so that its surface is no longer smooth, so that the first electrode layer 21 diffusely reflects the light instead of reflecting it in a direction. In this way, the uneven path of the reflected light of each RGB pixel or the spatial distribution of the light intensity can be reduced, thereby achieving the technical effect of reducing the color separation phenomenon of the display panel in the dark state and improving the color separation problem of the display panel.

[0074] In a specific embodiment, Figure 2 As shown, the driving backplane 1 includes a planar layer 12 facing the OLED light-emitting device 2 , and the first electrode layer 21 of the OLED light-emitting device 2 is arranged on the planar layer 12 .

[0075] Specifically, the driving backplane 1 generally includes a base substrate 11 and a thin film transistor array (TFT array) manufactured on the base substrate 11, a planar layer 12 is arranged on the TFT array, and the first electrode layer 21 is generally prepared by a magnetron sputtering process on the planar layer 12, and is electrically connected to the TFT array through vias in the planar layer 12.

[0076] Exemplarily, the surface of the planar layer 12 is configured as a rough surface, so that the surface of the first electrode layer 21 formed on the planar layer 12 can be roughened.

[0077] Exemplarily, the first electrode layer 21 may be an anode, and the OLED light-emitting device 2 further includes a light-emitting structure layer 22 and a transparent cathode 23 .

[0078] In a specific embodiment, the flat layer 12 may include two film layers, that is, two film layers are formed through two preparation processes to complete the production of the flat layer 12. The surface of the flat layer 12 formed in this way can be flatter, and then the surface of the first electrode layer 21 formed on the flat layer 12 can be flatter, reducing the degree of surface unevenness, thereby weakening the phenomenon of color separation of reflected light in the dark state.

[0079] Furthermore, the planar layer 12 is made of organic silicon series material (SOG). Similarly, the planar layer 12 made of organic silicon series material will have a flatter surface, thereby making the surface of the first electrode layer 21 flatter, thereby achieving the effect of reducing the color separation phenomenon of reflected light in the dark state.

[0080] Exemplarily, the planar layer 12 may also be made of acrylic acid series, epoxy resin series and other materials, which are not described in detail here.

[0081] Specifically, in order to more intuitively reflect the improvement effect of the display panel provided by each embodiment of the present disclosure on the color separation phenomenon in the dark state, Fig. 9 The dark state reflected light experimental data results of four specific embodiments of the display panel are given in FIG. Fig. 9 As shown, there are four groups of histograms in the horizontal axis direction, which respectively represent the dark state reflected light experimental data results under the following four specific embodiments: Embodiment a, the first electrode layer of the OLED light-emitting device is arranged on the flat layer, and the flat layer is a single film layer (single-layer PLN), Embodiment b, the first electrode layer of the OLED light-emitting device is arranged on the flat layer, and the flat layer has two film layers (double-layer PLN), Embodiment c, the first electrode layer of the OLED light-emitting device is arranged on the flat layer, and the flat layer adopts organic silicon series materials (SOG PLN), Embodiment d, the first electrode layer of the OLED light-emitting device is directly arranged on the flat substrate (flat anode). Each group of histograms has two experimental data (bottom layer BM and double-layer BM), and the two experimental data correspond to two different color resistance structures.

[0082] like Fig. 9 As shown, by comparing the histograms of groups b, c, and d with group a (comparing the data of the same color resist structure), it can be seen that the ΔΕab of the histograms of groups b, c, and d is max ΔΕab relative to group a max There is a significant decrease in the ΔΕab in the histograms of groups c and d. max Even smaller than group a ΔΕab max 1 / 2 of the total color separation, it can be concluded that: relative to the conventional display panel setting of single-layer PLN, setting PLN as a double-layer, selecting silicone series materials to prepare PLN, or other methods that can make the anode surface flat, can effectively reduce the color separation of the light reflected by the display panel in the dark state, and the flatter the anode surface, the better the effect of reducing the color separation. In summary, the experimental data analysis results show intuitively that the display panel provided by each embodiment of the present disclosure can significantly reduce the color separation of the reflected light in the dark state.

[0083] Illustratively, the OLED display panel provided in the embodiment of the present disclosure is a flexible foldable display panel, and the base substrate of the driving backplane is a flexible substrate.

[0084] For example, the OLED display panel provided by the embodiment of the present disclosure is as follows: Figure 2 As shown, in addition to the driving backplane 1, the OLED light-emitting device 2, the packaging structure 3, the touch structure 5 and the color resistance structure 4, other film layer structures may also be included, such as an upper protective layer 81 and a lower protective layer 82, which will not be repeated here.

[0085] In addition, an embodiment of the present disclosure further provides a display device, which includes any one of the above-mentioned OLED display panels.

[0086] Illustratively, the display device provided in the embodiments of the present disclosure may be a smart phone, a tablet computer, a monitor, or the like.

[0087] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

[0088] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present disclosure without departing from the spirit and scope of the embodiments of the present disclosure. Thus, if these modifications and variations of the embodiments of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. An OLED display panel, comprising a driving backplane and an OLED light-emitting device, a packaging structure and a color resistance structure arranged on the driving backplane; wherein: The packaging structure and the color resistance structure are located on a side of the OLED light-emitting device away from the driving backplane; At least one scattering layer is provided on a side of the OLED light emitting device facing away from the driving backplane, and the scattering layer comprises an organic material film and scattering particles arranged in the organic material film.

2. The OLED display panel according to claim 1, wherein: The encapsulation structure comprises two inorganic insulating layers and a first organic insulating layer located between the two inorganic insulating layers; The first organic insulating layer is configured as the scattering layer.

3. The OLED display panel according to claim 1, wherein: The color group structure includes a color resist layer; the color resist layer is configured as the scattering layer.

4. The OLED display panel according to claim 3, wherein: The color resist layer includes red resist, green resist and blue resist, and the particle sizes of the scattering particles respectively included in the red resist, green resist and blue resist decrease in sequence.

5. The OLED display panel according to claim 1, wherein: Also included is a second organic insulating layer located between the encapsulation structure and the color resist structure; The second organic insulating layer is configured as a scattering layer.

6. The OLED display panel according to claim 1, wherein: It also includes a touch structure located on a side of the packaging structure away from the driving backplane; the touch structure is located between the packaging structure and the color resistance structure, or the touch structure is located on a side of the color resistance structure away from the driving backplane.

7. The OLED display panel according to claim 6, wherein: It also includes a third organic insulating layer located between the touch control structure and the color resistance structure; The third organic insulating layer is configured as the scattering layer.

8. The OLED display panel according to claim 6, wherein: The touch control structure comprises two layers of touch control electrodes and a fourth organic insulating layer located between the two layers of touch control electrodes; The fourth organic insulating layer is configured as the scattering layer.

9. The OLED display panel according to claim 6, wherein: It also includes a fifth organic insulating layer located on a side of the touch control structure and the color resistance structure away from the driving backplane; The fifth organic insulating layer is configured as the scattering layer.

10. The OLED display panel according to claim 1, wherein: The scattering particles are inorganic scattering particles, and the inorganic scattering particles are one or a mixture of titanium oxide, zirconium oxide, silicon oxide, calcium carbonate, and barium sulfate.

11. The OLED display panel according to claim 10, wherein: The particle size of the inorganic scattering particles is 40nm-700nm, and the mass percentage of the inorganic scattering particles in the organic material film is 1%-15%.

12. The OLED display panel according to claim 1, wherein: The scattering particles are organic scattering particles, the refractive index ratio of the organic scattering particles to the organic material film is 0.7-0.99, and the mass percentage of the organic scattering particles in the organic material film is 5%-40%.

13. The OLED display panel according to any one of claims 1 to 12, wherein: It includes a touch structure, and the touch structure is located on a side of the color resistance structure away from the driving backplane; The display panel further includes a third light shielding matrix located on a side of the touch control structure away from the driving backplane.

14. The OLED display panel according to any one of claims 1 to 12, wherein: The OLED light emitting device has a first electrode layer electrically connected to the driving backplane, and a surface of the first electrode layer facing away from the driving backplane is a rough surface.

15. The OLED display panel according to claim 14, wherein: The driving backplane comprises a flat layer facing the OLED light-emitting device, and the first electrode layer of the OLED light-emitting device is arranged on the flat layer; The surface of the flat layer is configured as a rough surface, so that the surface of the first electrode layer formed on the flat layer is rough.

16. The OLED display panel according to claim 15, wherein: The flat layer includes two film layers.

17. The OLED display panel according to claim 15, wherein: The flat layer is made of silicone series, acrylic series, or epoxy resin series materials.

18. A display device comprising the OLED display panel according to any one of claims 1 to 17.

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