Display panel, display device and manufacturing method of display panel

Abstract

The invention relates to the technical field of display, particularly provides a display panel, a display device and a manufacturing method of the display panel, and aims to solve the technical problem that the display effect is poor due to the fact that an existing display device has a saltgate effect. To this end, the display panel of the present application comprises: a substrate; the pixel defining layer is located on the substrate and comprises an opening area; a light emitting element defined by the opening region; the scattering layer is located on the side, away from the substrate, of the pixel defining layer and used for scattering light emitted by the light-emitting element. The light emitted by the light-emitting element can be diffused in multiple directions through the scattering layer, blurring of the edge of a single pixel is facilitated, the brightness uniformity of the whole screen is improved, the boundary between pixels becomes less obvious, and therefore the saltgate effect is eliminated, it is ensured that more light can reach the eyes of an observer, and the overall display effect is improved.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and specifically provides a display panel, a display device and a method for manufacturing the display panel. Background Art

[0002] With the rapid development of display devices, users have higher and higher requirements for display devices. For most existing display devices, when the PPI (Pixels Per Inch) is too low or the user's use distance is too close, the user feels like looking through a door with a grid when viewing the image displayed on the display. This phenomenon is called the Sandgate effect, which may lead to poor display effects and low user experience. Summary of the invention

[0003] In order to overcome the above defects, the present application is proposed to provide a solution or at least partially solve the technical problem that the existing display device has a sand gate effect, resulting in poor display effect. The present application provides a display panel, a display device and a method for manufacturing a display panel.

[0004] In a first aspect, the present application provides a display panel, the display panel comprising:

[0005] substrate;

[0006] A pixel defining layer located on the substrate, comprising an opening area;

[0007] a light emitting element defined by the opening area;

[0008] The scattering layer is located on a side of the pixel defining layer away from the substrate and is used for scattering the light emitted by the light emitting element.

[0009] In one embodiment of the present application, the scattering layer is disposed around the opening area, and an orthographic projection of the scattering layer on the substrate and an orthographic projection of the light emitting element on the substrate at least partially overlap.

[0010] In one embodiment of the present application, the orthographic projection of the scattering layer on the substrate covers the orthographic projection of the light emitting element on the substrate.

[0011] In one embodiment of the present application, the orthographic projection of the scattering layer on the substrate coincides with the orthographic projection of the edge of the pixel defining layer close to the light emitting element on the substrate.

[0012] In one embodiment of the present application, the scattering layer includes:

[0013] ontology;

[0014] Scattering particles doped in the body,

[0015] Wherein, light emitting elements emitting light of different colors are defined by different opening areas, and the size of scattering particles in the scattering layer corresponding to the light emitting elements emitting light of different colors is close to the wavelength of the color light.

[0016] In one embodiment of the present application, it also includes:

[0017] A first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, wherein the scattering layer is arranged on the first inorganic encapsulation layer, and the organic encapsulation layer covers the scattering layer.

[0018] In one embodiment of the present application, it also includes:

[0019] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer and a first optical adhesive layer are sequentially arranged in a direction from the pixel defining layer to the substrate, wherein the scattering layer is arranged on the second inorganic encapsulation layer, and the first optical adhesive layer covers the scattering layer.

[0020] In one embodiment of the present application, it further includes: a polarizer layer disposed on a side of the first optical adhesive layer away from the substrate.

[0021] In one embodiment of the present application, it also includes:

[0022] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer and a second optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate,

[0023] Wherein, the color filter layer includes a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one-to-one to the orthographic projection of the light-emitting element on the substrate; and wherein, the scattering layer is arranged on the color filter layer, and the second optical adhesive layer covers the scattering layer.

[0024] In one embodiment of the present application, it also includes:

[0025] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer, a third optical adhesive layer and a fourth optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate.

[0026] Wherein, the color film layer includes a color film surrounded by a black matrix, and the orthographic projection of the color film on the substrate corresponds one-to-one to the orthographic projection of the light-emitting element on the substrate; and wherein, the scattering layer is arranged on the third optical adhesive layer, and the fourth optical adhesive layer covers the scattering layer.

[0027] In one embodiment of the present application, the scattering layer has an uneven surface, and the adjacent layer in contact with the surface has a different refractive index from that of the scattering layer.

[0028] In one embodiment of the present application, it also includes:

[0029] A first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate,

[0030] The scattering layer is disposed on the first inorganic encapsulation layer, the organic encapsulation layer covers the scattering layer, and a surface of the scattering layer in contact with the first inorganic encapsulation layer and / or a surface of the scattering layer in contact with the organic encapsulation layer has an uneven surface.

[0031] In one embodiment of the present application, it also includes:

[0032] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer and a first optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate,

[0033] The scattering layer is arranged on the second inorganic encapsulation layer, the first optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the second inorganic encapsulation layer and / or the surface in contact with the first optical adhesive layer has an uneven surface.

[0034] In one embodiment of the present application, it further includes: a polarizer layer disposed on a side of the first optical adhesive layer away from the substrate.

[0035] In one embodiment of the present application, it also includes:

[0036] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer and a second optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate,

[0037] Wherein, the color filter layer comprises a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one to one with the orthographic projection of the light-emitting element on the substrate;

[0038] And wherein, the scattering layer is arranged on the color filter layer, the second optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the color filter layer and / or the surface in contact with the second optical adhesive layer has an uneven surface.

[0039] In one embodiment of the present application, it also includes:

[0040] A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer, a third optical adhesive layer and a fourth optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate.

[0041] Wherein, the color filter layer comprises a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one to one with the orthographic projection of the light-emitting element on the substrate;

[0042] And wherein the scattering layer is arranged on the third optical adhesive layer, the fourth optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the third optical adhesive layer and / or the surface in contact with the fourth optical adhesive layer has an uneven surface.

[0043] In one embodiment of the present application, it also includes:

[0044] The driving circuit layer is located between the substrate and the pixel defining layer.

[0045] In a second aspect, a display device is provided, comprising the display panel according to any one of claims 1-17.

[0046] In a third aspect, a method for manufacturing a display panel is provided, the method comprising:

[0047] forming a pixel defining layer on a substrate, including an opening region;

[0048] forming a light emitting element in the opening area;

[0049] A scattering layer is formed on a side of the pixel defining layer away from the substrate, for scattering the light emitted by the light emitting element.

[0050] The above one or more technical solutions of this application have at least one or more of the following Beneficial effects:

[0051] The display panel provided by the present application includes: a substrate; a pixel defining layer located on the substrate, including an opening area; a light-emitting element defined by the opening area; and a scattering layer located on the side of the pixel defining layer away from the substrate, used to scatter the light emitted by the light-emitting element. The scattering layer can diffuse the light emitted by the light-emitting element in multiple directions, which helps to blur the edge of a single pixel, improve the brightness uniformity of the entire screen, and make the boundaries between pixels less obvious, thereby eliminating the sand gate effect, ensuring that more light can reach the observer's eyes, and improving the overall display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The disclosure of the present application will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which:

[0053] Figure 1 It is a schematic diagram of the main structure of a display panel in one embodiment of the present application;

[0054] Figure 2 It is a structural schematic diagram of a pixel arrangement method in one embodiment of the present application;

[0055] Figure 3 is a schematic diagram of the dimensions of a scattering layer in one embodiment of the present application;

[0056] Figure 4 This is an example diagram of light scattering by a scattering layer in one embodiment of the present application;

[0057] Figure 5 is a schematic diagram of the relationship between scattered ions and scattering intensity in one embodiment of the present application;

[0058] Figure 6 is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0059] Figure 7 is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0060] Figure 8 is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0061] Fig. 9 It is a flow chart of a method for manufacturing a display panel in one embodiment of the present application. DETAILED DESCRIPTION

[0062] Some embodiments of the present application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0063] Currently, most traditional display devices have the Sandgate effect, that is, when the PPI (Pixels Per Inch) of the display device is too low or the user's usage distance is too close, the user feels like looking through a door with a grid when viewing the image displayed on the monitor, resulting in poor display effect and low user experience.

[0064] To this end, the present application proposes a display panel, a display device, and a method for manufacturing the display panel.

[0065] See attached Figure 1 , Figure 1 It is a schematic diagram of the main structure of a display panel according to an embodiment of the present application.

[0066] like Figure 1 As shown, the display panel in the embodiment of the present application mainly includes a substrate 11;

[0067] A pixel defining layer 13 located on the substrate 11, including an opening area;

[0068] A light emitting element 14 defined by an opening area;

[0069] The scattering layer 16 is located on a side of the pixel defining layer 13 away from the substrate 11 , and is used to scatter the light emitted by the light emitting element 14 .

[0070] The scattering layer can diffuse the light emitted by the light-emitting element in multiple directions, which helps to blur the edges of individual pixels, improve the brightness uniformity of the entire screen, make the boundaries between pixels less obvious, thereby eliminating the salmon effect, ensuring that more light can reach the observer's eyes, and improving the overall display effect.

[0071] In a specific embodiment of the present application, the scattering layer 16 is disposed around the opening area, and the orthographic projection of the scattering layer 16 on the substrate 11 and the orthographic projection of the light emitting element 14 on the substrate 11 at least partially overlap.

[0072] The orthographic projection of the scattering layer 16 and the orthographic projection of the light emitting element 14 overlap on the substrate 11, which means that at least a portion of the light emitted by the light emitting element 14 will directly pass through the scattering layer 16 and be affected by the scattering layer 16, which can optimize the scattering effect of the light, thereby ensuring that the light emitted from the light emitting element 14 can be fully processed by the scattering layer 16, thereby improving the brightness and uniformity of the display panel.

[0073] In a specific embodiment of the present application, the orthographic projection of the scattering layer 16 on the substrate 11 covers the orthographic projection of the light emitting element 14 on the substrate 11 .

[0074] Coverage means that the range of the orthographic projection of the scattering layer 16 on the substrate 11 completely includes the orthographic projection of the light-emitting element 14, that is, all light emitted from the light-emitting element 14 will pass through the scattering layer 16, ensuring comprehensive scattering and distribution of light, thereby improving the brightness and uniformity of the display panel.

[0075] In a specific embodiment of the present application, the orthographic projection of the scattering layer 16 on the substrate 11 coincides with the orthographic projection of the edge of the pixel defining layer 13 close to the light emitting element 14 on the substrate 11 .

[0076] Overlapping means that the range of the orthographic projection of the scattering layer 16 on the substrate 11 is completely consistent with the range of the orthographic projection of the edge of the pixel defining layer 13 close to the light emitting element 14 on the substrate. In other words, the scattering layer 16 is precisely located above the edge of the pixel defining layer 13 close to the light emitting element 14, ensuring that the light emitted from the light emitting element 14 will not be disturbed by the pixel defining layer 13 when passing through the scattering layer 16, so that the light emitted from the light emitting element 14 can be fully scattered and distributed, optimizing the display effect and performance of the display panel.

[0077] Figure 2 This can be used as an example of a pixel arrangement manner in the AA′ section of an embodiment of the present application, wherein P1 is a blue light-emitting element, P2 is a red light-emitting element, and P3 is a green light-emitting element.

[0078] Figure 3 It can be used as a schematic diagram of the size of the scattering layer in one embodiment of the present application. Red, green and blue pixels (RGB pixels for short) correspond to three different scattering layers, respectively called R scattering layer, G scattering layer and B scattering layer. The opening sizes of R / G / B pixels are Dr / Dg / Db, respectively, and the widths of RGB scattering layers are Cr / Cg / Cb, respectively, where Dr≥2Cr, Dg≥2Cg, and Db≥2Cb.

[0079] In a specific embodiment of the present application, the scattering layer 16 includes: a body and scattering particles doped in the body, wherein light-emitting elements 14 emitting light of different colors are defined by different opening areas, and the size of the scattering particles in the scattering layer corresponding to the light-emitting elements 14 emitting light of different colors is close to the wavelength of the color light.

[0080] The body is the main structure of the scattering layer 16, which provides a stable matrix for accommodating and supporting scattering particles. The scattering particles are doped in the body to scatter light. In the display panel, the opening area is usually used to accommodate the light-emitting element. Different opening areas can define different light-emitting elements, which can emit light of different colors.

[0081] In optics, Mie scattering occurs when the size of the scattering particles is close to the wavelength of light. Therefore, by setting the size of the scattering particles in the scattering layer corresponding to the light-emitting elements emitting different colors of light to be close to the wavelength of the color of light, this method can more effectively scatter the light of the corresponding wavelength, optimize the scattering effect of the scattering layer on different colors of light, and thus improve the display effect of the display panel.

[0082] For example, Figure 4 This can be used as an example diagram of light scattering by a scattering layer in an embodiment of the present application.

[0083] Figure 5 It can be used as a schematic diagram of the relationship between scattered ions and scattering intensity in one embodiment of the present application. Figure 5 As shown, the size of the scattering particles added to the RGB scattering layers should be as close as possible to the wavelength of the light itself to achieve a greater scattering intensity. The particle size of the R scattering layer can be within the range of 630±10nm, the particle size of the G scattering layer can be within the range of 530±10nm, and the particle size of the B scattering layer can be within the range of 460±10nm.

[0084] In a specific embodiment of the present application, Figure 1 As shown, the display panel also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17 and a second inorganic encapsulation layer 18 which are sequentially arranged in a direction in which the pixel defining layer 13 is away from the substrate 11, wherein the scattering layer 16 is arranged on the first inorganic encapsulation layer 15, and the organic encapsulation layer 17 covers the scattering layer 16.

[0085] The first inorganic encapsulation layer 15 is the first layer in the encapsulation structure, located above the pixel definition layer 13 and away from the substrate 11. Its main function is to provide mechanical strength and barrier function to prevent harmful substances such as moisture and oxygen from invading the display area, thereby extending the life of the display element. The inorganic encapsulation layer is usually made of silicate, silicon nitride or other inorganic materials, and has excellent barrier properties and chemical stability.

[0086] The organic encapsulation layer 17 covers the scattering layer 16 and is the middle layer in the encapsulation structure. Compared with the inorganic encapsulation layer, the organic encapsulation layer 17 generally has better flexibility and lower stress, and can adapt to more complex curved surfaces and flexible display requirements. The organic encapsulation layer 17 is generally made of polymer materials, such as epoxy resin, polyimide, etc.

[0087] The second inorganic encapsulation layer 18 is the last layer in the encapsulation structure and is located above the organic encapsulation layer 17. Similar to the first inorganic encapsulation layer 15, the second inorganic encapsulation layer 18 also provides mechanical strength and barrier function, further protecting the display area from harmful substances. The combination of two inorganic encapsulation layers and an organic encapsulation layer can significantly improve the barrier performance and reliability of the encapsulation structure.

[0088] In a specific embodiment of the present application, Figure 6 As shown, it also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18 and a first optical adhesive layer 191 which are sequentially arranged in the direction of the pixel defining layer 13 away from the substrate 11, wherein the scattering layer 16 is arranged on the second inorganic encapsulation layer 18, and the first optical adhesive layer 191 covers the scattering layer 16.

[0089] like Figure 6As shown, taking the light emitting element 141 being blue and the light emitting element 142 being red as an example, the size of the scattering particles in the scattering layer 161 corresponding to the light emitting element 141 emitting blue light is close to the wavelength of the blue light, and the size of the scattering particles in the scattering layer 162 corresponding to the light emitting element 142 emitting red light is close to the wavelength of the red light.

[0090] The first optical adhesive layer 191 covers the scattering layer 16 and is one of the outermost layers in the packaging structure. The main function of the optical adhesive layer is to provide optical transparency while ensuring good adhesion between the layers. It is usually made of transparent polymer materials such as acrylic acid, polyurethane, etc. The optical adhesive layer can also play a buffering and protective role to prevent external impacts and scratches from affecting the display screen.

[0091] In a specific embodiment of the present application, Figure 6 As shown, it also includes: a polarizer layer 22 arranged on the side of the first optical adhesive layer 191 away from the substrate 11.

[0092] Polarizers can control the polarization direction of light, allowing only light in a specific direction to pass through while blocking light in other directions. The polarizer layer can be composed of multiple layers of thin films, including polarizing film, protective film and adhesive layer.

[0093] By providing the polarizing layer 22, the polarization direction of light can be controlled, and the interference and reflection of external light can be reduced, thereby improving the clarity of the image.

[0094] In a specific embodiment of the present application, Figure 7 As shown, it also includes:

[0095] A first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18, a color film layer and a second optical adhesive layer 192 are sequentially arranged in a direction in which the pixel defining layer 13 is away from the substrate 11, wherein the color film layer includes a color film 21 surrounded by a black matrix 20, and the orthographic projection of the color film 21 on the substrate 11 corresponds one-to-one to the orthographic projection of the light-emitting element 14 on the substrate 11; and wherein the scattering layer 16 is arranged on the color film layer, and the second optical adhesive layer 192 covers the scattering layer 16.

[0096] The color filter layer is located on the second inorganic encapsulation layer 18 and is a key component for realizing color display in the display panel. The color filter layer includes a color filter 21 surrounded by a black matrix 20. The black matrix 20 is used to separate color filters 21 of different colors to prevent color mixing. Each light-emitting element 14 corresponds to a group of color filters 21 of a specific color, thereby realizing color display.

[0097] The scattering layer 16 is disposed on the color filter layer, and its main function is to improve the display effect, such as increasing the viewing angle, reducing reflection, etc. The scattering layer 16 scatters light so that a relatively consistent display effect can be obtained when the display device is viewed from different angles.

[0098] By using two inorganic encapsulation layers in combination with an organic encapsulation layer, the barrier performance and reliability of the encapsulation structure can be significantly improved.

[0099] The optical adhesive layer (such as OCA adhesive, OCR adhesive, etc.) has good optical properties and adhesion properties, and can be used to fix and seal the various components of the display device while ensuring smooth transmission of light. The second optical adhesive layer 192 can also protect the scattering layer 16 and the color filter layer to prevent them from being damaged by the outside world.

[0100] In a specific embodiment of the present application, Figure 8 As shown, it also includes:

[0101] A first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18, a color film layer, a third optical adhesive layer 193 and a fourth optical adhesive layer 194 are sequentially arranged in the direction in which the pixel defining layer 13 is away from the substrate 11, wherein the color film layer includes a color film 21 surrounded by a black matrix 20, and the orthographic projection of the color film 21 on the substrate 11 corresponds one-to-one to the orthographic projection of the light-emitting element 14 on the substrate 11; and wherein the scattering layer 16 is arranged on the third optical adhesive layer 193, and the fourth optical adhesive layer 194 covers the scattering layer 16.

[0102] Specifically, the third optical adhesive layer 193 can smooth the surface of the color film layer and provide a good adhesion foundation for the scattering layer. The fourth optical adhesive layer 194 covers the scattering layer 16 and plays a role of fixing and sealing, ensuring that the scattering layer is tightly combined with other components of the display device to prevent interference from the external environment.

[0103] In a specific embodiment of the present application, the scattering layer 16 has an uneven surface, and the adjacent layer in contact with the surface has a different refractive index from that of the scattering layer 16 .

[0104] The surface of the scattering layer 16 is uneven, and this structure is the key to the scattering effect. The uneven surface can cause the light to continuously collide with the surface during propagation, thereby changing the propagation direction. This scattering effect can be achieved by controlling the shape, size and distribution of the surface to meet different display requirements.

[0105] The adjacent layer refers to the upper or lower layer of material that is in direct contact with the scattering layer 16. In the present application, the adjacent layer can be a variety of different materials. For example, Figure 1The adjacent layer in the display panel shown may be any one of the first inorganic encapsulation layer 15 and the organic encapsulation layer 17. Figure 6 The adjacent layer in the display panel shown may be any one of the second inorganic encapsulation layer 18 and the first optical adhesive layer 191. Figure 7 The adjacent layer in the display panel shown may be any one of the color filter layer and the second optical adhesive layer 192. Figure 8 The adjacent layer in the display panel may be any one of the third optical adhesive layer 193 and the fourth optical adhesive layer 194 .

[0106] Since the refractive indexes of the scattering layer 16 and the adjacent layers are different, when the light propagates from the scattering layer 16 to the adjacent layers, refraction occurs, which further enhances the scattering effect.

[0107] In a specific embodiment of the present application, Figure 1 As shown, it also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17 and a second inorganic encapsulation layer 18 which are sequentially arranged in the direction in which the pixel defining layer 13 is away from the substrate 11, wherein the scattering layer 16 is arranged on the first inorganic encapsulation layer 15, the organic encapsulation layer 17 covers the scattering layer 16, and the surface of the scattering layer 16 in contact with the first inorganic encapsulation layer 15 and / or the surface in contact with the organic encapsulation layer 17 has an uneven surface.

[0108] Specifically, the structure of the display panel in this embodiment refers to the structure of the display panel in the aforementioned embodiment, which will not be described in detail here.

[0109] In a specific embodiment of the present application, Figure 6 As shown, it also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18 and a first optical adhesive layer 191 which are sequentially arranged in the direction in which the pixel defining layer 13 is away from the substrate 11, wherein the scattering layer 16 is arranged on the second inorganic encapsulation layer 18, the first optical adhesive layer 191 covers the scattering layer 16, and the surface of the scattering layer 16 in contact with the second inorganic encapsulation layer 18 and / or the surface in contact with the first optical adhesive layer 191 has an uneven surface.

[0110] For example, the refractive index of the scattering particles in the scattering layer may be higher than the refractive index of the first optical adhesive layer 191 . For example, the refractive index of the scattering particles may be in the range of 1.6 to 1.8.

[0111] In a specific embodiment of the present application, Figure 6As shown, it also includes: a polarizer layer 22 disposed on the side of the first optical adhesive layer 191 away from the substrate 11. The scattering layer 16 has an uneven surface, and the adjacent layer in contact with the surface has a different refractive index from the scattering layer 16.

[0112] In a specific embodiment of the present application, Figure 7 As shown, it also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18, a color film layer and a second optical adhesive layer 192 which are sequentially arranged in the direction in which the pixel defining layer 13 is away from the substrate 11, wherein the color film layer includes a color film 21 surrounded by a black matrix 20, and the orthographic projection of the color film 21 on the substrate 11 corresponds one-to-one to the orthographic projection of the light-emitting element 14 on the substrate 11; and wherein the scattering layer 16 is arranged on the color film layer, the second optical adhesive layer 192 covers the scattering layer 16, and the surface of the scattering layer 16 in contact with the color film layer and / or the surface in contact with the second optical adhesive layer 192 has an uneven surface.

[0113] Specifically, the structure of the display panel in this embodiment refers to the structure of the display panel in the aforementioned embodiment, which will not be described in detail here.

[0114] In a specific embodiment of the present application, Figure 8 As shown, it also includes: a first inorganic encapsulation layer 15, an organic encapsulation layer 17, a second inorganic encapsulation layer 18, a color film layer, a third optical adhesive layer 193 and a fourth optical adhesive layer 194 which are sequentially arranged in the direction in which the pixel defining layer 13 is away from the substrate 11, wherein the color film layer includes a color film 21 surrounded by a black matrix 20, and the orthographic projection of the color film 21 on the substrate 11 corresponds one-to-one to the orthographic projection of the light-emitting element 14 on the substrate 11; and wherein the scattering layer 16 is arranged on the third optical adhesive layer 193, the fourth optical adhesive layer 194 covers the scattering layer 16, and the surface of the scattering layer 16 in contact with the third optical adhesive layer 193 and / or the surface in contact with the fourth optical adhesive layer 194 has an uneven surface.

[0115] Specifically, the structure of the display panel in this embodiment refers to the structure of the display panel in the aforementioned embodiment, which will not be described in detail here.

[0116] In a specific embodiment of the present application, Figure 1 , Figure 6 , Figure 7 and Figure 8 As shown, a driving circuit layer 12 is also included, and the driving circuit layer 12 is located between the substrate 11 and the pixel defining layer 13 .

[0117] Specifically, the driving circuit layer 12 generally includes a thin film transistor (TFT) array, data lines, scan lines, and power lines. Each pixel corresponds to one or more TFTs, and the TFT acts as an electronic switch to control whether current is allowed to flow through the corresponding pixel. The TFT array is arranged in rows and columns, each row is controlled by a gate line, and each column is provided with a signal by a source line. When the gate line of a specific row is activated, all TFTs in the row are turned on, and then the data signal is provided to the corresponding pixel through the source line.

[0118] Data lines, also called source lines, carry image data signals to each pixel. These signals contain brightness and color information.

[0119] Scan lines, also called gate lines, scan and activate the entire display area row by row, with only one row being selected at a time so that the status of all pixels in that row can be updated.

[0120] The power line is used to provide a stable voltage or current to ensure that the TFT can be turned on and off correctly and to power the light-emitting elements.

[0121] Furthermore, the present application also provides a display device, which includes the aforementioned display panel.

[0122] Furthermore, the present application also provides a method for manufacturing a display panel, such as Fig. 9 As shown, the method for manufacturing the display panel can be specifically implemented through the following steps S10-S30.

[0123] Step S10: forming a pixel definition layer on the substrate, including an opening area.

[0124] Step S20: forming a light emitting element in the opening region.

[0125] Step S30: forming a scattering layer on a side of the pixel defining layer away from the substrate, so as to scatter the light emitted by the light emitting element.

[0126] By providing a scattering layer, the light emitted by the light emitting element can be scattered, thereby reducing the sand door effect and improving the display effect.

[0127] So far, the technical solutions of the present application have been described in conjunction with the specific implementations shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific implementations. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A pixel defining layer located on the substrate, comprising an opening area; a light emitting element defined by the opening area; The scattering layer is located on a side of the pixel defining layer away from the substrate and is used for scattering the light emitted by the light emitting element.

2. The display panel according to claim 1, characterized in that: The scattering layer is disposed around the opening area, and an orthographic projection of the scattering layer on the substrate and an orthographic projection of the light emitting element on the substrate at least partially overlap.

3. The display panel according to claim 2, characterized in that: The orthographic projection of the scattering layer on the substrate covers the orthographic projection of the light emitting element on the substrate.

4. The display panel according to claim 2, characterized in that: The orthographic projection of the scattering layer on the substrate coincides with the orthographic projection of the edge of the pixel defining layer close to the light emitting element on the substrate.

5. The display panel according to claim 1, characterized in that: The scattering layer comprises: ontology; Scattering particles doped in the body, Wherein, light emitting elements emitting light of different colors are defined by different opening areas, and the size of scattering particles in the scattering layer corresponding to the light emitting elements emitting light of different colors is close to the wavelength of the color light.

6. The display panel according to claim 5, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, wherein the scattering layer is arranged on the first inorganic encapsulation layer, and the organic encapsulation layer covers the scattering layer.

7. The display panel according to claim 5, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer and a first optical adhesive layer are sequentially arranged in a direction from the pixel defining layer to the substrate, wherein the scattering layer is arranged on the second inorganic encapsulation layer, and the first optical adhesive layer covers the scattering layer.

8. The display panel according to claim 7, characterized in that: Also includes: A polarizer layer is arranged on a side of the first optical adhesive layer away from the substrate.

9. The display panel according to claim 5, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer and a second optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, Wherein, the color filter layer includes a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one-to-one to the orthographic projection of the light-emitting element on the substrate; and wherein, the scattering layer is arranged on the color filter layer, and the second optical adhesive layer covers the scattering layer.

10. The display panel according to claim 5, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer, a third optical adhesive layer and a fourth optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate. Wherein, the color film layer includes a color film surrounded by a black matrix, and the orthographic projection of the color film on the substrate corresponds one-to-one to the orthographic projection of the light-emitting element on the substrate; and wherein, the scattering layer is arranged on the third optical adhesive layer, and the fourth optical adhesive layer covers the scattering layer.

11. The display panel according to claim 1, characterized in that: The scattering layer has an uneven surface, and an adjacent layer in contact with the surface has a refractive index different from that of the scattering layer.

12. The display panel according to claim 11, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, The scattering layer is disposed on the first inorganic encapsulation layer, the organic encapsulation layer covers the scattering layer, and a surface of the scattering layer in contact with the first inorganic encapsulation layer and / or a surface of the scattering layer in contact with the organic encapsulation layer has an uneven surface.

13. The display panel according to claim 11, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer and a first optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, The scattering layer is arranged on the second inorganic encapsulation layer, the first optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the second inorganic encapsulation layer and / or the surface in contact with the first optical adhesive layer has an uneven surface.

14. The display panel according to claim 13, characterized in that: Also includes: A polarizer layer is arranged on a side of the first optical adhesive layer away from the substrate.

15. The display panel according to claim 11, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer and a second optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate, Wherein, the color filter layer comprises a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one to one with the orthographic projection of the light-emitting element on the substrate; And wherein, the scattering layer is arranged on the color filter layer, the second optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the color filter layer and / or the surface in contact with the second optical adhesive layer has an uneven surface.

16. The display panel according to claim 11, characterized in that: Also includes: A first inorganic encapsulation layer, an organic encapsulation layer, a second inorganic encapsulation layer, a color film layer, a third optical adhesive layer and a fourth optical adhesive layer are sequentially arranged in a direction in which the pixel defining layer is away from the substrate. Wherein, the color filter layer comprises a color filter surrounded by a black matrix, and the orthographic projection of the color filter on the substrate corresponds one to one with the orthographic projection of the light-emitting element on the substrate; And wherein the scattering layer is arranged on the third optical adhesive layer, the fourth optical adhesive layer covers the scattering layer, and the surface of the scattering layer in contact with the third optical adhesive layer and / or the surface in contact with the fourth optical adhesive layer has an uneven surface.

17. The display panel according to claim 1, characterized in that: Also includes: The driving circuit layer is located between the substrate and the pixel defining layer.

18. A display device, characterized in that: The display device comprises the display panel according to any one of claims 1 to 17.

19. A method for manufacturing a display panel, characterized in that: The method comprises: forming a pixel defining layer on a substrate, including an opening region; forming a light emitting element in the opening area; A scattering layer is formed on a side of the pixel defining layer away from the substrate, for scattering the light emitted by the light emitting element.

Images