Display panel and method of manufacturing the same

Abstract

The application relates to a display panel and a manufacturing method thereof. The display panel comprises a spacer layer, a light-emitting functional layer, an encapsulation layer, a filter color resistance layer and a touch layer. The spacer layer comprises a spacer portion and a plurality of pixel openings surrounded by the spacer portion. The light-emitting functional layer comprises a plurality of light-emitting devices arranged at intervals. The light-emitting devices are at least partially located in the pixel openings, and the spacer portion is located between two adjacent light-emitting devices. The encapsulation layer is located on a side of the light-emitting functional layer and the spacer layer away from a substrate. The filter color resistance layer is located on a side of the encapsulation layer away from the substrate. The touch layer is located on a side of the encapsulation layer away from the substrate, and the touch layer comprises a plurality of touch electrodes. The filter color resistance layer only comprises a plurality of color resistance portions. The touch layer comprises at least one touch metal layer, and the at least one touch metal layer comprises a black conductive layer. In a direction perpendicular to a plane where the substrate is located, the filter color resistance layer and the touch layer are stacked.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and a method for manufacturing the same. Background Technology

[0002] OLED (Organic Light Emitting Diode) display panels are one of the hottest topics in the field of display panel research today. OLED display panels have advantages such as low energy consumption, low cost, self-emissiveness, wide viewing angle and fast response speed.

[0003] However, the manufacturing process of OLED display panels is complex in related technologies. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and its manufacturing method to address the problem of the complexity of OLED display panel manufacturing methods in related technologies.

[0005] According to a first aspect of this application, a display panel is provided, comprising:

[0006] Base;

[0007] A spacer layer, located on one side of the substrate, the spacer layer including a spacer portion and a plurality of pixel openings surrounded by the spacer portion;

[0008] A light-emitting functional layer is located on one side of the substrate. The light-emitting functional layer includes a plurality of light-emitting devices arranged at intervals. The light-emitting devices are at least partially located within the pixel opening. On a plane parallel to the substrate, the intervals are located between two adjacent light-emitting devices.

[0009] An encapsulation layer is located on the side of the light-emitting functional layer and the spacer layer away from the substrate;

[0010] A color filter layer is located on the side of the encapsulation layer away from the substrate;

[0011] A touch layer is located on the side of the encapsulation layer away from the substrate. The touch layer includes a plurality of touch electrodes, and the orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the corresponding spacer portion on the substrate.

[0012] The color filter layer includes only a plurality of color resist parts, and the orthographic projection of the color resist part on the substrate at least partially overlaps with the orthographic projection of the corresponding pixel opening on the substrate.

[0013] The touch layer includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer;

[0014] The color filter layer and the touch layer are stacked in a direction perpendicular to the plane of the substrate.

[0015] In some embodiments, the plurality of color resist portions include a plurality of first color resist portions, a plurality of second color resist portions, and a plurality of third color resist portions, with a first gap portion between at least partially adjacent and different types of color resist portions, the orthographic projection of the first gap portion on the substrate falling within the range of the orthographic projection of the corresponding gap portion on the substrate; or,

[0016] The plurality of color resist portions include a plurality of first color resist portions, a plurality of second color resist portions, and a plurality of third color resist portions. At least some of the adjacent and different types of color resist portions have overlapping portions. The orthographic projection of the overlapping portion on the substrate is located within the range of the orthographic projection of the corresponding spacing portion on the substrate.

[0017] In some implementations, it also includes:

[0018] A planarization layer is located on the side of the color filter layer away from the substrate. The planarization layer has a visible light transmittance of greater than 90%. The planarization layer covers the surface of the color filter layer away from the substrate. The planarization layer comprises an organic material.

[0019] In some embodiments, the touch layer is located between the color filter layer and the encapsulation layer.

[0020] In some embodiments, the color filter layer is located on the side of the planarization layer away from the encapsulation layer.

[0021] In some embodiments, in a direction perpendicular to the plane of the substrate, the touch layer includes a first touch metal layer and a second touch metal layer stacked in a direction perpendicular to the plane of the substrate, and a first touch insulating layer located between the first touch metal layer and the second touch metal layer, wherein the first touch insulating layer includes a first through-hole.

[0022] The second touch metal layer includes a plurality of touch electrodes, and the first touch metal layer includes a plurality of bridging electrodes. Two adjacent and corresponding touch electrodes are electrically connected through the first through hole and the corresponding bridging electrode.

[0023] At least the second touch metal layer includes a black conductive layer.

[0024] According to a second aspect of this application, a method for manufacturing a display panel is provided, comprising:

[0025] Provide a base;

[0026] A spacer layer is formed on one side of the substrate, the spacer layer including spacer portions and a plurality of pixel openings surrounded by the spacer portions;

[0027] A light-emitting functional layer is formed on one side of the substrate. The light-emitting functional layer includes a plurality of spaced light-emitting devices. The light-emitting devices are at least partially located within the pixel opening. On a plane parallel to the substrate, the spacer portion is located between two adjacent light-emitting devices.

[0028] An encapsulation layer is formed on the side of the light-emitting functional layer and the spacer layer away from the substrate;

[0029] A color filter layer is formed on the side of the encapsulation layer away from the substrate, wherein the color filter layer includes only a plurality of color filter portions, and the orthographic projection of the color filter portion on the substrate at least partially overlaps with the orthographic projection of the corresponding pixel opening on the substrate;

[0030] A touch layer is formed on the side of the encapsulation layer away from the substrate. The touch layer includes a plurality of touch electrodes. The orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the corresponding spacing portion on the substrate. The touch layer includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer. The color filter layer is stacked with the touch layer in a direction perpendicular to the plane of the substrate.

[0031] In some implementations, it also includes:

[0032] A planarization layer is formed on the side of the color filter layer away from the substrate. The planarization layer has a visible light transmittance of greater than 90%. The planarization layer covers the surface of the color filter layer away from the substrate. The planarization layer comprises an organic material.

[0033] In some embodiments, the step of forming the touch layer on the side of the encapsulation layer away from the substrate is performed before the step of forming the color filter layer on the side of the encapsulation layer away from the substrate; or,

[0034] The step of forming a touch layer on the side of the encapsulation layer away from the substrate is performed after the step of forming a planarization layer on the side of the color filter layer away from the substrate.

[0035] In some embodiments, after the step of forming the touch layer on the side of the encapsulation layer away from the substrate, the following feature is included:

[0036] In a direction perpendicular to the plane of the substrate, the touch layer includes a first touch metal layer and a second touch metal layer stacked in a direction perpendicular to the plane of the substrate, and a first touch insulating layer located between the first touch metal layer and the second touch metal layer, wherein the first touch insulating layer includes a first through hole;

[0037] The second touch metal layer includes a plurality of touch electrodes, and the first touch metal layer includes a plurality of bridging electrodes. Two adjacent and corresponding touch electrodes are electrically connected through the first through hole and the corresponding bridging electrode.

[0038] At least the second touch metal layer includes a black conductive layer.

[0039] In this embodiment, the color filter layer includes only multiple color resist portions, and the touch layer includes at least one touch metal layer, wherein the at least one touch metal layer includes a black conductive layer. The color filter layer and the touch layer are stacked in a direction perpendicular to the plane of the substrate. That is, the color filter layer does not include a black matrix (BM). In this case, in the manufacturing process of the display panel, it is not necessary to set a photomask to create the black matrix, saving a photomask and simplifying the manufacturing process and structure of the display panel. At the same time, the touch layer includes at least one touch metal layer that is a black conductive layer, so that the touch metal layer of the black conductive layer can block the light emitted by adjacent light-emitting devices from being emitted through the adjacent parts of two adjacent color resist portions. That is, the touch metal layer of the black conductive layer divides different sub-pixels, and the touch metal layer of the black conductive layer can function as a black matrix. The touch metal layer of the black conductive layer can also prevent ambient light from being reflected to the human eye, thus improving the display quality. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of a first partial cross-sectional structure of a display panel provided for some embodiments of this application.

[0042] Figure 2 This is a schematic diagram of a second partial cross-sectional structure of a display panel provided for some embodiments of this application.

[0043] Figure 3 This is a schematic diagram of a third partial cross-sectional structure of a display panel provided in some embodiments of this application.

[0044] Figure 4 This is a schematic diagram of a fourth partial cross-sectional structure of a display panel provided in some embodiments of this application.

[0045] Figure 5This is a schematic flowchart illustrating a method for manufacturing a display panel according to some embodiments of this application.

[0046] Figure 6 This is a schematic diagram of a display device provided for some embodiments of this application.

[0047] Reference numerals: Display panel 100; Display device 200; Substrate 11; Array composite layer 12; First electrode layer 13; Spacer layer 14; Light-emitting material layer 15; Second electrode 16; Encapsulation layer 17; Touch layer 20; Filter color resist layer 30; Planarization layer 25; Spacer portion 141; Pixel opening 142; Light-emitting device 51; Touch electrode 231; Color resist portion 31; First electrode 131; First color resist portion 311; Second color resist portion 312; Third color resist portion 313; First gap portion Q11; First dashed coil Q1; Overlapping portion Q12; Second dashed coil Q2; First light-emitting device 511; Second light-emitting device 512; Third light-emitting device 513; First touch metal layer 21; First touch insulating layer 22; Second touch metal layer 23; Second touch insulating layer 24; Bridging electrode 211; First through hole 221; Light-emitting functional layer 50. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] Among the related technologies, there is the problem of the complexity of the manufacturing method of OLED display panels.

[0055] To address the complexity of OLED display panel manufacturing methods in related technologies and to simplify the manufacturing process and structure of display panels, this application provides a display panel and its manufacturing method, aiming to simplify the manufacturing process and structure of the display panel.

[0056] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of a first partial cross-sectional structure of a display panel provided for some embodiments of this application. Figure 2 This is a schematic diagram of a second partial cross-sectional structure of a display panel provided for some embodiments of this application. Figure 3 This is a schematic diagram of a third partial cross-sectional structure of a display panel provided in some embodiments of this application. Figure 4 This is a schematic diagram of a fourth partial cross-sectional structure of a display panel provided in some embodiments of this application.

[0057] Firstly, please refer to Figures 1 to 4 This application provides a display panel 100, which includes a substrate 11, a spacer layer 14, a light-emitting functional layer 50, an encapsulation layer 17, a color filter layer 30, and a touch layer 20. The spacer layer 14 is located on one side of the substrate 11 and includes a spacer portion 141 and a plurality of pixel openings 142 surrounded by the spacer portion 141. The light-emitting functional layer 50 is located on one side of the substrate 11 and includes a plurality of spaced-apart light-emitting devices 51, at least partially located within the pixel openings 142. On a plane parallel to the substrate 11, the spacer portion 141 is located between adjacent light-emitting devices 51. The encapsulation layer 17 is located on the side of the light-emitting functional layer 50 and the spacer layer 14 away from the substrate 11. The color filter layer 30 is located on the side of the encapsulation layer 17 away from the substrate 11. The touch layer 20 is located on the side of the encapsulation layer 17 away from the substrate 11. On the side of layer 17 away from substrate 11, touch layer 20 includes a plurality of touch electrodes 231, the orthographic projection of touch electrodes 231 on substrate 11 at least partially overlaps with the orthographic projection of corresponding spacing portion 141 on substrate 11; wherein, color filter layer 30 includes only a plurality of color resist portions 31, the orthographic projection of color resist portion 31 on substrate 11 at least partially overlaps with the orthographic projection of corresponding pixel opening 142 on substrate 11; touch layer 20 includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer; in a direction perpendicular to the plane of substrate 11, color filter layer 30 and touch layer 20 are stacked.

[0058] For example, the color filter layer 30 is a color filter layer.

[0059] For example, in some embodiments, the display panel 100 includes a substrate 11 and an array composite layer 12 disposed on one side of the substrate 11. The film structure of the array composite layer 12 may include a film layer containing multiple transistors and multiple drive lines in multiple driving circuits. In some embodiments, multiple light-emitting devices 51 are disposed on the side of the array composite layer 12 away from the substrate 11. The light-emitting device 51 includes a first electrode 131.

[0060] For example, the spacer layer 14 includes a spacer portion 141 and a plurality of pixel openings 142 surrounded by the spacer portion 141; that is, in some embodiments, the spacer layer 14 can be a pixel definition layer, the spacer portion 141 can be a pixel definition structure, and on a plane parallel to the substrate 11, the pixel definition layer includes a plurality of pixel definition structures and a pixel opening 142 surrounded by the plurality of pixel definition structures.

[0061] For example, the light-emitting functional layer 50 is located on one side of the substrate 11. The light-emitting functional layer 50 includes a plurality of spaced-apart light-emitting devices 51. The light-emitting devices 51 are at least partially located within pixel openings 142. On a plane parallel to the substrate 11, the spacers 141 are located between two adjacent light-emitting devices 51. In some embodiments, the first electrode layer 13 is disposed on the side of the array composite layer 12 away from the substrate 11. The first electrode layer 13 includes a plurality of arrayed first electrodes 131. The spacer layer 14 is disposed on the side of the first electrode layer 13 away from the substrate 11. The spacer layer 14 includes spacers 141 and a plurality of pixel openings 142 surrounded by the spacers 141. The pixel openings 142 expose the corresponding first electrodes 131.

[0062] For example, the light-emitting functional layer 50 includes a plurality of light-emitting devices 51. Each light-emitting device 51 includes a first electrode 131, a light-emitting material layer 15, and a second electrode 16, which are sequentially stacked along a direction away from the substrate 11. The light-emitting material layer 15 is located at least within the pixel opening 142, and the second electrode 16 is located on the side of the pixel definition structure and the light-emitting material layer 15 away from the substrate 11.

[0063] For example, the encapsulation layer 17 may be a thin film encapsulation layer, which may include inorganic material film layers and organic material film layers that are sequentially stacked and alternately arranged in a direction away from the substrate 11.

[0064] For example, in some embodiments, the color filter layer 30 and the touch layer 20 are stacked in a direction perpendicular to the plane of the substrate 11, such as... Figure 1 and Figure 2 In some embodiments, the color filter layer 30 can be disposed on the side of the touch layer 20 away from the substrate 11. In some embodiments, the color filter layer 30 and the touch layer 20 are stacked in a direction perpendicular to the plane of the substrate 11, such as... Figure 3 and Figure 4 In one embodiment, the touch layer 20 may be disposed on the side of the color filter layer 30 away from the substrate 11.

[0065] For example, the touch layer 20 is located on the side of the encapsulation layer 17 away from the substrate 11. The touch layer 20 includes a plurality of touch electrodes 231, and the orthographic projection of the touch electrodes 231 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding spacer 141 on the substrate 11. The touch layer 20 can be a mutual capacitive touch layer or a self-capacitive touch layer. The plurality of touch electrodes 231 may include touch driving electrodes and a plurality of touch receiving electrodes. The structure of the touch layer 20 is not limited to this. The orthographic projection of the touch electrodes 231 on the substrate 11 may be located within the range of the orthographic projection of the spacer 141 on the substrate 11.

[0066] For example, the color filter layer 30 includes only a plurality of color resist portions 31, and the orthographic projection of the color resist portion 31 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding pixel opening 142 on the substrate 11; the orthographic projection of the corresponding pixel opening 142 on the substrate 11 may be located within the range of the orthographic projection of the corresponding color resist portion 31 on the substrate 11.

[0067] For example, the color filter layer 30 includes only a plurality of color filter portions 31. In some embodiments, the color filter layer 30 does not include a black matrix (BM). In this case, in the manufacturing process of the display panel, it is not necessary to set up a photomask to manufacture the black matrix, saving a photomask and simplifying the manufacturing process and structure of the display panel.

[0068] For example, the touch layer 20 includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer; the touch layer 20 includes at least one touch metal layer that is a black conductive layer, such that the touch metal layer of the black conductive layer can block the light emitted by the adjacent light-emitting device 51 from being emitted through the adjacent parts of the two adjacent color resist portions 31, that is, the touch metal layer of the black conductive layer divides different sub-pixels, the touch metal layer of the black conductive layer can function as a black matrix, and the touch metal layer of the black conductive layer can also prevent ambient light from being reflected to the human eye, thereby improving the display quality.

[0069] For example, the color filter layer 30 and the touch layer 20 are stacked on a plane parallel to the substrate 11. This avoids placing the touch electrodes between two adjacent color filter portions 31, as is the case with the black matrix. This can prevent manufacturing defects when integrating the touch layer 20 and the color filter layer 30. For example, it can prevent the position of the touch electrodes from shifting, causing fluctuations in the thickness or width of the color filter portion 31. It can also prevent the thickness mismatch between the touch layer 20 and the color filter layer 30, thereby improving the manufacturing yield of the display panel and simplifying the structure of the display panel.

[0070] For example, the material of the black conductive layer may include, but is not limited to, black metals or black metal oxides.

[0071] In this embodiment, the color filter layer 30 includes only a plurality of color resist portions 31, and the touch layer 20 includes at least one touch metal layer, wherein the at least one touch metal layer includes a black conductive layer; the color filter layer 30 and the touch layer 20 are stacked in a direction perpendicular to the plane of the substrate 11. That is, the color filter layer 30 does not include a black matrix (BM). In this case, in the manufacturing process of the display panel, it is not necessary to set a photomask to create a black matrix, saving a photomask and simplifying the manufacturing process and structure of the display panel. At the same time, the touch layer 20 includes at least one touch metal layer that is a black conductive layer, so that the touch metal layer of the black conductive layer can block the light emitted by the adjacent light-emitting device 51 from being emitted through the adjacent parts of the two adjacent color resist portions 31. That is, the touch metal layer of the black conductive layer divides different sub-pixels, and the touch metal layer of the black conductive layer can function as a black matrix. The touch metal layer of the black conductive layer can also prevent ambient light from being reflected to the human eye, thus improving the display quality.

[0072] In some implementations, such as Figure 1 and Figure 3 As shown, the plurality of color resist portions 31 include a plurality of first color resist portions 311, a plurality of second color resist portions 312 and a plurality of third color resist portions 313. At least some of the adjacent and different types of color resist portions 31 have a first gap portion Q11 between them. The orthographic projection of the first gap portion Q11 on the substrate 11 is located within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11.

[0073] For example, such as Figure 1 and Figure 3 As shown by the first dashed coil Q1, at least some adjacent and different types of color resist portions 31 have a first gap portion Q11, that is, on a plane parallel to the substrate 11, some adjacent color resist portions 31 are spaced apart.

[0074] In some implementations, such as Figure 2 and Figure 4 As shown, the plurality of color resist portions 31 include a plurality of first color resist portions 311, a plurality of second color resist portions 312 and a plurality of third color resist portions 313. At least some of the adjacent and different types of color resist portions 31 have overlapping portions Q12. The orthographic projection of the overlapping portions Q12 on the substrate 11 is located within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11.

[0075] For example, such as Figure 2 and Figure 4 As shown in the second dashed coil Q2, at least some of the adjacent and different types of color resist parts 31 have overlapping portions Q12, that is, on a plane parallel to the substrate 11, some adjacent color resist parts 31 overlap.

[0076] For example, comparison Figure 1and Figure 2 , or comparison Figure 3 and Figure 4 Compared to the implementation of the overlapping portion Q12, the implementation with the first gap portion Q11 results in a smaller distance between the surface of the planarization layer 25 away from the substrate 11 and the bottom surface of the color filter layer 30. This is more suitable for embodiments where the color filter layer 30 is located on the side of the touch layer 20 away from the substrate 11, thereby reducing the thickness of the display panel and facilitating the stretchable and rollable display panel. In the implementation with the overlapping portion Q12, since the overlapping portion Q12 involves the stacking of two adjacent color filter portions 31 (i.e., a protrusion exists in the overlapping portion Q12), the distance between the surface of the planarization layer 25 away from the substrate 11 and the bottom surface of the color filter layer 30 is larger. However, without the large gap of the first gap portion Q11, the planarization of the surface of the planarization layer 25 away from the substrate 11 is better, making it more suitable for embodiments where the color filter layer 30 is located between the touch layer 20 and the substrate 11. This better planarization facilitates the placement of the touch layer 20.

[0077] For example, the first color resist portion 311, the second color resist portion 312, and the third color resist portion 313 are color resists of different colors. The first color resist portion 311 is one of red, green, and blue color resists. The second color resist portion 312 is one of red, green, and blue color resists that is different from the first color resist portion 311. The third color resist portion 313 is one of red, green, and blue color resists that is different from both the first color resist portion 311 and the second color resist portion 312.

[0078] For example, the plurality of light-emitting devices 51 includes a plurality of first light-emitting devices 511, a plurality of second light-emitting devices 512, and a plurality of third light-emitting devices 513, wherein the first light-emitting devices 511, the second light-emitting devices 512, and the third light-emitting devices 513 emit light of different colors. The first light-emitting device 511 is one of a red light-emitting device, a green light-emitting device, and a blue light-emitting device; the second light-emitting device 512 is one of a red light-emitting device, a green light-emitting device, and a blue light-emitting device that is different from the first light-emitting device 511; and the third light-emitting device 513 is one of a red light-emitting device, a green light-emitting device, and a blue light-emitting device that is different from both the first light-emitting device 511 and the second light-emitting device 512.

[0079] For example, the first color resist 311 and the first light-emitting device 511 are color resist 31 and light-emitting device 51 of the same color, the second color resist 312 and the second light-emitting device 512 are color resist 31 and light-emitting device 51 of the same color, and the third color resist 313 and the third light-emitting device 513 are color resist 31 and light-emitting device 51 of the same color. For example, the first color resist 311 is a red color resist, and the first light-emitting device 511 is a red light-emitting device. The orthographic projection of the first color resist 311 on the substrate 11 overlaps with the orthographic projection of the first light-emitting device 511 on the substrate 11, the orthographic projection of the second color resist 312 on the substrate 11 overlaps with the orthographic projection of the second light-emitting device 512 on the substrate 11, and the orthographic projection of the third color resist 313 on the substrate 11 overlaps with the orthographic projection of the third light-emitting device 513 on the substrate 11.

[0080] For example, the first light-emitting device 511, the second light-emitting device 512, and the third light-emitting device 513 include light-emitting material layers 15 that emit light of different colors. The light-emitting material layer 15 may include an emission layer (EML) and may also include other film layers besides the emission layer (EML). For example, it may include one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole block layer (HBL), and an electron block layer (EBL).

[0081] For example, one of the first electrode 131 and the second electrode 16 is an anode, and the other of the first electrode 131 and the second electrode 16 is a cathode.

[0082] In some embodiments, the display panel 100 further includes a planarization layer 25. The planarization layer 25 is located on the side of the color filter layer 30 away from the substrate 11, the planarization layer 25 has a visible light transmittance of greater than 90%, the planarization layer 25 covers the surface of the color filter layer 30 away from the substrate 11, and the planarization layer 25 comprises an organic material.

[0083] For example, since the color filter layer 30 does not include a black matrix, the surface of the color filter layer 30 away from the substrate 11 is not flat. A flattening layer 25 is required to flatten the surface of the color filter layer 30 away from the substrate 11, so as to provide a flat surface for the subsequent film layer. At the same time, the flattening layer 25 can prevent the color filter portion 31 from falling off or peeling off.

[0084] For example, the planarization layer 25 includes organic materials, and the planarization layer 25 can be manufactured by coating, spin coating and other processes. It does not require photomask patterning, saves a photomask, and simplifies the structure of the display panel 100.

[0085] For example, the light needs to pass through the planarization layer 25, which has a visible light transmittance greater than 90%. The visible light transmittance of the planarization layer 25 can be greater than any value of 80%, 85%, 90%, 92%, 95%, or 98%.

[0086] In some implementations, such as Figure 1 and Figure 2 As shown, the touch layer 20 is located between the color filter layer 30 and the encapsulation layer 17.

[0087] For example, such as Figure 1 and Figure 2 As shown, the film structure of the display panel 100 includes an array composite layer 12, a first electrode layer 13, a spacer layer 14, a light-emitting material layer 15, a second electrode 16, an encapsulation layer 17, a touch layer 20, a color filter layer 30, and a planarization layer 25, which are sequentially stacked on one side of the substrate 11. Figure 1 It is illustrated that at least some of the adjacent and different types of color resist portions 31 have a first gap portion Q11, and the orthographic projection of the first gap portion Q11 on the substrate 11 is within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11. Figure 2 It is illustrated that at least some of the adjacent and different types of color resist portions 31 have an overlapping portion Q12, and the orthographic projection of the overlapping portion Q12 on the substrate 11 is within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11.

[0088] For example, the touch layer 20 is located between the color filter layer 30 and the encapsulation layer 17. In the manufacturing process of the display panel 100, the touch layer 20 is manufactured first and then the color filter layer 30 is manufactured. This can avoid the high temperature and other conditions during the manufacturing process of the touch layer 20 from reducing the performance of the color filter layer 30.

[0089] In some implementations, such as Figure 3 and Figure 4 As shown, the color filter layer 30 is located on the side of the planarization layer 25 away from the encapsulation layer 17.

[0090] For example, such as Figure 3 and Figure 4 As shown, the film structure of the display panel 100 includes an array composite layer 12, a first electrode layer 13, a spacer layer 14, a light-emitting material layer 15, a second electrode 16, an encapsulation layer 17, a color filter layer 30, a touch layer 20, and a planarization layer 25, which are sequentially stacked on one side of the substrate 11. Figure 3It is illustrated that at least some of the adjacent and different types of color resist portions 31 have a first gap portion Q11, and the orthographic projection of the first gap portion Q11 on the substrate 11 is within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11. Figure 4 It is illustrated that at least some of the adjacent and different types of color resist portions 31 have an overlapping portion Q12, and the orthographic projection of the overlapping portion Q12 on the substrate 11 is within the range of the orthographic projection of the corresponding spacing portion 141 on the substrate 11.

[0091] For example, the touch layer 20 is located on the side of the color filter layer 30 away from the substrate 11, which increases the distance between the touch electrode in the touch layer 20 and the second electrode 16, thereby reducing the coupling capacitance between the touch electrode in the touch layer 20 and the second electrode 16 and improving touch performance.

[0092] In some implementations, such as Figures 1 to 4 As shown, in the direction perpendicular to the plane of the substrate 11, the touch layer 20 includes a first touch metal layer 21 and a second touch metal layer 23 stacked in the direction perpendicular to the plane of the substrate 11, and a first touch insulating layer 22 located between the first touch metal layer 21 and the second touch metal layer 23. The first touch insulating layer 22 includes a first through-hole 221. The second touch metal layer 23 includes a plurality of touch electrodes 231. The first touch metal layer 21 includes a plurality of bridging electrodes 211. Two adjacent and corresponding touch electrodes 231 are electrically connected through the first through-hole 221 and the corresponding bridging electrode 211. At least the second touch metal layer 23 includes a black conductive layer.

[0093] For example, two adjacent and corresponding touch electrodes 231 are electrically connected to the corresponding bridging electrode 211 through the first through hole 221. For example, two adjacent touch electrodes 231 belonging to the same touch driving electrode are electrically connected to the corresponding bridging electrode 211 through the first through hole 221. For example, two adjacent touch electrodes 231 belonging to the same touch receiving electrode are electrically connected to the corresponding bridging electrode 211 through the first through hole 221.

[0094] For example, the touch layer 20 includes a first touch metal layer 21 and a second touch metal layer 23 stacked in the direction perpendicular to the plane of the substrate 11. The second touch metal layer 23 includes a plurality of touch electrodes 231, and the first touch metal layer 21 includes a plurality of bridging electrodes 211. At least the second touch metal layer 23 includes a black conductive layer, so that the touch metal layer with the largest area and closest to the human eye is black, which can reduce the reflection of ambient light on the touch layer and thus improve the display effect.

[0095] For example, Figure 1The illustration shows that the touch layer 20 includes a first touch metal layer 21, a first touch insulating layer 22, and a second touch metal layer 23, which are sequentially stacked along a direction away from the substrate 11. The touch layer 20 may also include a second touch insulating layer 24 located on the side of the second touch metal layer 23 away from the substrate 11. In some embodiments, the second touch insulating layer 24 may include an organic material, thereby planarizing the surface of the touch layer 20 away from the substrate 11.

[0096] For example, in some embodiments, the touch layer 20 may also include a third touch insulating layer (not shown) located between the first touch metal layer 21 and the encapsulation layer 17.

[0097] For example, in some other embodiments, in the direction of the plane of the vertical substrate 11, the touch layer 20 includes a first touch metal layer 21 and a second touch metal layer 23 stacked in the direction of the plane of the vertical substrate 11. The first touch metal layer 21 may include a plurality of touch electrodes, and the second touch metal layer 23 includes a plurality of bridging electrodes. At least the first touch metal layer 21 includes a black conductive layer, so that the touch metal layer with the largest area is black, which can reduce the reflection of ambient light on the touch layer, thereby improving the display effect.

[0098] Please see Figure 5 , Figure 5 This is a schematic flowchart illustrating a method for manufacturing a display panel according to some embodiments of this application.

[0099] Secondly, this application also provides a method for manufacturing a display panel, which can be used to manufacture the display panel 100 described above. The method for manufacturing the display panel includes steps S100, S200, S300, S400, S500, and S600.

[0100] Step S100: Provide a substrate.

[0101] For example, a base 11 is provided.

[0102] Step S200: A spacer layer is formed on one side of the substrate, the spacer layer including a spacer portion and a plurality of pixel openings surrounded by the spacer portion.

[0103] For example, a spacer layer 14 is formed on one side of the substrate 11. The spacer layer 14 includes a spacer portion 141 and a plurality of pixel openings 142 surrounding the spacer portion 141.

[0104] For example, the spacer layer 14 can be a pixel definition layer, which includes a pixel definition structure and a plurality of pixel openings 142 surrounding the pixel definition structure on a plane parallel to the substrate 11.

[0105] Step S300: A light-emitting functional layer is formed on one side of the substrate. The light-emitting functional layer includes a plurality of spaced light-emitting devices. The light-emitting devices are at least partially located within the pixel opening. On a plane parallel to the substrate, the spacer is located between two adjacent light-emitting devices.

[0106] For example, a light-emitting functional layer 50 is formed on one side of the substrate 11. The light-emitting functional layer 50 includes a plurality of spaced light-emitting devices 51. The light-emitting devices 51 are at least partially located within the pixel opening 142. On a plane parallel to the substrate 11, the spacer portion 141 is located between two adjacent light-emitting devices 51.

[0107] Step S400: An encapsulation layer is formed on the side of the light-emitting functional layer and the spacer layer away from the substrate.

[0108] For example, an encapsulation layer 17 is formed on the side of the light-emitting functional layer 50 and the spacer layer 14 away from the substrate 11.

[0109] In step S500, a color filter layer is formed on the side of the encapsulation layer away from the substrate, wherein the color filter layer includes only a plurality of color filter portions, and the orthographic projection of the color filter portion on the substrate at least partially overlaps with the orthographic projection of the corresponding pixel opening on the substrate.

[0110] For example, a color filter layer 30 is formed on the side of the encapsulation layer 17 away from the substrate 11. The color filter layer 30 includes only a plurality of color filter portions 31, and the orthographic projection of the color filter portion 31 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding pixel opening 142 on the substrate 11.

[0111] For example, the color filter layer 30 includes only a plurality of color filter portions 31. In some embodiments, the color filter layer 30 does not include a black matrix (BM). In this case, in the manufacturing process of the display panel, it is not necessary to set up a photomask to manufacture the black matrix, saving a photomask and simplifying the manufacturing process and structure of the display panel.

[0112] In step S600, a touch layer is formed on the side of the encapsulation layer away from the substrate. The touch layer includes a plurality of touch electrodes. The orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the corresponding spacing portion on the substrate. The touch layer includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer. The color filter layer is stacked with the touch layer in a direction perpendicular to the plane of the substrate.

[0113] For example, a touch layer 20 is formed on the side of the encapsulation layer 17 away from the substrate 11. The touch layer 20 includes a plurality of touch electrodes 231. The orthographic projection of the touch electrodes 231 on the substrate 11 at least partially overlaps with the orthographic projection of the corresponding spacing portion 141 on the substrate 11. The touch layer 20 includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer. In a direction perpendicular to the plane of the substrate 11, a color filter layer 30 is stacked with the touch layer 20.

[0114] For example, the touch layer 20 includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer; the touch layer 20 includes at least one touch metal layer that is a black conductive layer, such that the touch metal layer of the black conductive layer can block the light emitted by the adjacent light-emitting device 51 from being emitted through the adjacent parts of the two adjacent color resist portions 31, that is, the touch metal layer of the black conductive layer divides different sub-pixels, the touch metal layer of the black conductive layer can function as a black matrix, and the touch metal layer of the black conductive layer can also prevent ambient light from being reflected to the human eye, thereby improving the display quality.

[0115] For example, in some embodiments, step S500 is manufactured before step S600, and can be used to manufacture... Figure 3 or Figure 4 The display panel 100 shown.

[0116] For example, in some other embodiments, step S500 is manufactured after step S600, and can be used to manufacture... Figure 1 or Figure 2 The display panel 100 shown.

[0117] For example, steps S500 and S600 are performed sequentially, so that the color filter layer 30 and the touch layer 20 are stacked on the plane parallel to the substrate 11. This avoids placing the touch electrodes between two adjacent color filter portions 31, as is the case with the black matrix. This can prevent manufacturing defects when the touch layer 20 and the color filter layer 30 are integrated. For example, it can prevent the position of the touch electrodes from shifting, causing fluctuations in the thickness or width of the color filter portion 31. It can also prevent the thickness mismatch between the touch layer 20 and the color filter layer 30, thereby improving the manufacturing yield of the display panel and simplifying the structure of the display panel.

[0118] For example, in the manufacturing of the display panel, the color filter layer 30 does not include a black matrix (BM). In this case, in the manufacturing process of the display panel, it is not necessary to set up a photomask to create the black matrix, saving a photomask and simplifying the manufacturing process and structure of the display panel. At the same time, the touch layer 20 includes at least one touch metal layer that is a black conductive layer. This allows the touch metal layer of the black conductive layer to block the light emitted by adjacent light-emitting devices 51 from escaping through adjacent portions of the two adjacent color filter layers 31. That is, the touch metal layer of the black conductive layer divides different sub-pixels. The touch metal layer of the black conductive layer can function as a black matrix and can also prevent ambient light from reflecting into the human eye, thus improving display quality.

[0119] In some embodiments, the method of manufacturing the display panel further includes: step S700, forming a planarization layer 25 on the side of the color filter layer 30 away from the substrate 11, the planarization layer 25 having a visible light transmittance greater than 90%, the planarization layer 25 covering the surface of the color filter layer 30 away from the substrate 11, the planarization layer 25 comprising an organic material.

[0120] For example, in some embodiments, step S500 is manufactured before step S600, and step S700 is performed after step S500 and before step S600, which can manufacture the product. Figure 3 or Figure 4 The display panel 100 shown.

[0121] For example, in some other embodiments, step S500 is manufactured after step S600, and step S700 is performed after step S500, which can manufacture the product. Figure 1 or Figure 2 The display panel 100 shown.

[0122] In some embodiments, the step of forming the touch layer 20 on the side of the encapsulation layer 17 away from the substrate 11 (step S600) is performed before the step of forming the color filter layer 30 on the side of the encapsulation layer 17 away from the substrate 11 (step S500), and can be manufactured to form... Figure 1 or Figure 2 The display panel 100 shown.

[0123] In some embodiments, the step of forming the touch layer 20 on the side of the encapsulation layer 17 away from the substrate 11 (step S600) is performed after the step of forming the planarization layer 25 on the side of the color filter layer 30 away from the substrate 11 (step S500), and can be manufactured to form... Figure 3 or Figure 4 The display panel 100 shown.

[0124] In some implementations, combined Figures 1 to 4 As shown, after the step of forming the touch layer 20 on the side of the encapsulation layer 17 away from the substrate 11, the touch layer 20 includes the following features: in the direction perpendicular to the plane of the substrate 11, the touch layer 20 includes a first touch metal layer 21 and a second touch metal layer 23 stacked in the direction perpendicular to the plane of the substrate 11, and a first touch insulating layer 22 located between the first touch metal layer 21 and the second touch metal layer 23, the first touch insulating layer 22 including a first through-hole 221; the second touch metal layer 23 includes a plurality of touch electrodes 231, the first touch metal layer 21 includes a plurality of bridging electrodes 211, and two adjacent and corresponding touch electrodes 231 are electrically connected through the first through-hole 221 and the corresponding bridging electrode 211; at least the second touch metal layer 23 includes a black conductive layer.

[0125] It should be noted that in some of the above methods, the touch electrodes are in the form of a grid, and the touch electrodes include multiple curved segments or multiple arc segments. In this case, the display panel 100 is particularly suitable for stretchable or rollable display panels. During the stretching or rolling process, the touch electrodes are less likely to break, thus improving the stretching and rolling performance of the display panel 100.

[0126] It should be noted that in some of the above methods, with Figures 1 to 4 Unlike the previous version, the touch layer 20 may consist of only one touch metal layer, and this touch metal layer is a black conductive layer. This reduces the number of touch metal layers and reduces the risk of defects such as breakage of the touch electrodes or touch metal layers during stretching or rolling, thereby improving the stretching and rolling performance of the display panel 100.

[0127] Please see Figure 6 , Figure 6 This is a schematic diagram of a display device 200 provided for some embodiments of this application.

[0128] Secondly, please refer to Figure 6 This application provides a display device 200, which includes a display panel 100 of any one of the above features, or a display panel 100 that combines any of the above features.

[0129] For example, the display device 200 may be a mobile phone, a laptop, a television, etc., but is not limited to these.

[0130] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0131] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: Base; A spacer layer, located on one side of the substrate, the spacer layer including a spacer portion and a plurality of pixel openings surrounded by the spacer portion; A light-emitting functional layer is located on one side of the substrate. The light-emitting functional layer includes a plurality of light-emitting devices arranged at intervals. The light-emitting devices are at least partially located within the pixel opening. On a plane parallel to the substrate, the intervals are located between two adjacent light-emitting devices. An encapsulation layer is located on the side of the light-emitting functional layer and the spacer layer away from the substrate; A color filter layer is located on the side of the encapsulation layer away from the substrate; A touch layer is located on the side of the encapsulation layer away from the substrate. The touch layer includes a plurality of touch electrodes, and the orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the corresponding spacer portion on the substrate. The color filter layer includes only a plurality of color resist parts, and the orthographic projection of the color resist part on the substrate at least partially overlaps with the orthographic projection of the corresponding pixel opening on the substrate. The touch layer includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer; The color filter layer and the touch layer are stacked in a direction perpendicular to the plane of the substrate.

2. The display panel according to claim 1, characterized in that, The plurality of color resist portions include a plurality of first color resist portions, a plurality of second color resist portions, and a plurality of third color resist portions. At least partially adjacent color resist portions of different types have a first gap portion between them. The orthographic projection of the first gap portion onto the substrate lies within the range of the orthographic projection of the corresponding spacer portion onto the substrate; or, The plurality of color resist portions include a plurality of first color resist portions, a plurality of second color resist portions, and a plurality of third color resist portions. At least some of the adjacent and different types of color resist portions have overlapping portions. The orthographic projection of the overlapping portion on the substrate is located within the range of the orthographic projection of the corresponding spacing portion on the substrate.

3. The display panel according to claim 1, characterized in that, Also includes: A planarization layer is located on the side of the color filter layer away from the substrate. The planarization layer has a visible light transmittance of greater than 90%. The planarization layer covers the surface of the color filter layer away from the substrate. The planarization layer comprises an organic material.

4. The display panel according to claim 3, characterized in that, The touch layer is located between the color filter layer and the encapsulation layer.

5. The display panel according to claim 3, characterized in that, The color filter layer is located on the side of the planar layer away from the encapsulation layer.

6. The display panel according to claim 1, characterized in that, In a direction perpendicular to the plane of the substrate, the touch layer includes a first touch metal layer and a second touch metal layer stacked in a direction perpendicular to the plane of the substrate, and a first touch insulating layer located between the first touch metal layer and the second touch metal layer, wherein the first touch insulating layer includes a first through hole; The second touch metal layer includes a plurality of touch electrodes, and the first touch metal layer includes a plurality of bridging electrodes. Two adjacent and corresponding touch electrodes are electrically connected through the first through hole and the corresponding bridging electrode. At least the second touch metal layer includes a black conductive layer.

7. A method for manufacturing a display panel, characterized in that, include: Provide a base; A spacer layer is formed on one side of the substrate, the spacer layer including spacer portions and a plurality of pixel openings surrounded by the spacer portions; A light-emitting functional layer is formed on one side of the substrate. The light-emitting functional layer includes a plurality of spaced light-emitting devices. The light-emitting devices are at least partially located within the pixel opening. On a plane parallel to the substrate, the spacer is located between two adjacent light-emitting devices. An encapsulation layer is formed on the side of the light-emitting functional layer and the spacer layer away from the substrate; A color filter layer is formed on the side of the encapsulation layer away from the substrate, wherein the color filter layer includes only a plurality of color filter portions, and the orthographic projection of the color filter portion on the substrate at least partially overlaps with the orthographic projection of the corresponding pixel opening on the substrate; A touch layer is formed on the side of the encapsulation layer away from the substrate. The touch layer includes a plurality of touch electrodes. The orthographic projection of the touch electrodes on the substrate at least partially overlaps with the orthographic projection of the corresponding spacing portion on the substrate. The touch layer includes at least one touch metal layer, and the at least one touch metal layer includes a black conductive layer. The color filter layer is stacked with the touch layer in a direction perpendicular to the plane of the substrate.

8. The method for manufacturing a display panel according to claim 7, characterized in that, Also includes: A planarization layer is formed on the side of the color filter layer away from the substrate. The planarization layer has a visible light transmittance of greater than 90%. The planarization layer covers the surface of the color filter layer away from the substrate. The planarization layer comprises an organic material.

9. The method for manufacturing a display panel according to claim 8, characterized in that, The step of forming the touch layer on the side of the encapsulation layer away from the substrate is performed before the step of forming the color filter layer on the side of the encapsulation layer away from the substrate; or, The step of forming a touch layer on the side of the encapsulation layer away from the substrate is performed after the step of forming a planarization layer on the side of the color filter layer away from the substrate.

10. The method for manufacturing a display panel according to claim 7, characterized in that, After the step of forming the touch layer on the side of the encapsulation layer away from the substrate, the following features are included: In a direction perpendicular to the plane of the substrate, the touch layer includes a first touch metal layer and a second touch metal layer stacked in a direction perpendicular to the plane of the substrate, and a first touch insulating layer located between the first touch metal layer and the second touch metal layer, wherein the first touch insulating layer includes a first through hole; The second touch metal layer includes a plurality of touch electrodes, and the first touch metal layer includes a plurality of bridging electrodes. Two adjacent and corresponding touch electrodes are electrically connected through the first through hole and the corresponding bridging electrode. At least the second touch metal layer includes a black conductive layer.

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