Display panel, display device, and method for manufacturing a display panel
The display panel design addresses the challenge of integrating effective touch and display functions by dividing sub-pixels into blocks separated by a structure, enhancing light emission reliability and manufacturing efficiency.
Patent Information
- Application Number
- JP2024092417
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2024-03-15
- Filing Date
- 2024-06-06
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2044-06-06
AI Technical Summary
Existing electronic display products face challenges in achieving both good touch functions and display functions, particularly in scenarios like under-display recognition and transparent display, due to their unique structural designs.
A display panel design that includes a display substrate with a first display area comprising a plurality of first sub-pixels arranged in an array. Each first sub-pixel is divided into multiple sub-pixel blocks, with adjacent blocks separated by a separation structure. This design allows for improved light emission reliability and reduced risk of display function deterioration due to debris.
The design enhances the reliability of light emission by ensuring that only specific sub-pixel blocks experience light emission failure due to debris, while the entire sub-pixel can still emit light. This reduces the risk of display function deterioration and improves the manufacturing process by eliminating the need for precise alignment of mask plates.
Smart Images

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Abstract
Description
Technical Field
[0001] This application claims the priority of Chinese Patent Application No. 202410302679.3, entitled "Display Panel and Display Device", filed on March 15, 2024, and all the contents of the said application are incorporated herein by reference.
[0002] The present disclosure relates to the field of display technologies, and specifically, to a display panel, a display device, and a method for manufacturing a display panel.
Background Art
[0003] An organic light-emitting diode (OLED) is an organic thin-film electroluminescent element, which has advantages such as a simple manufacturing process, low cost, low power consumption, high brightness, wide viewing angle, high contrast, and flexible display, etc., so it has attracted great attention and is widely applied to electronic display products.
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, existing electronic display products are limited by their unique structural designs, and it is difficult to achieve both good touch functions and display functions when applied to scenes such as under-display recognition and transparent display.
Means for Solving the Problems
[0005] A first aspect of the present disclosure provides a display panel, which includes a display substrate. The display substrate includes a first display area. The first display area includes a plurality of first sub-pixels arranged in an array in a first direction. The first sub-pixels include at least two sub-pixel blocks. In the first sub-pixel, there are at least two adjacent sub-pixel blocks, and the two adjacent sub-pixel blocks are separated by a separation structure.
[0006] In the actual process, since there may be a risk of light emission failure of the first sub-pixel due to debris entering the first sub-pixel, in the above aspect, by dividing the first sub-pixel into a plurality of sub-pixel blocks, only a specific sub-pixel block will experience light emission failure due to debris, and the first sub-pixel itself can still emit light. Therefore, the risk of the display function of the display panel deteriorating due to harmful substances such as debris entering the first sub-pixel is reduced.
[0007] In a specific embodiment of the first aspect of the present disclosure, in the second direction, the display substrate includes a substrate and a display function layer located on the substrate. The display function layer includes a plurality of light-emitting elements, and one light-emitting element is provided in each sub-pixel block. The light-emitting element includes a first electrode, a light-emitting function layer, and a second electrode sequentially stacked on the substrate. In the same first sub-pixel, the first electrodes corresponding to adjacent sub-pixel blocks are electrically connected to each other. The separation structure is located on the substrate and defines a plurality of separation openings, and the light-emitting elements are respectively restricted in position within the separation openings.
[0008] In the above aspect, since the first electrodes of the two light-emitting elements in the same first sub-pixel are connected to each other, the driving method of the entire pixel does not change. Furthermore, due to the application of the separation structure, a mask plate is not required in the manufacturing process of the light-emitting element. Therefore, there is no need to consider the alignment accuracy problem of the manufacturing process, which is advantageous for reducing the gap size between the light-emitting elements and improving the pixel PPI of the display panel.
[0009] In a specific embodiment of the first aspect of the present disclosure, the separation structure includes a support portion and a crown portion sequentially stacked on the substrate. The orthographic projection of the support portion on the substrate is located within the orthographic projection of the crown portion on the substrate. The support portion is a conductive structure, and the second electrode of the light-emitting element is located in the corresponding separation opening and connected to the support portion.
[0010] In the above aspect, in the gap between adjacent light-emitting elements, as an overall separation structure, it has a shape that is wider at the upper part and narrower at the lower part. In this way, in the manufacturing process of the light-emitting elements, the blocking effect of the separation structure on the light-emitting functional layer can be increased, and the current crosstalk problem between adjacent light-emitting elements can be reduced.
[0011] For example, optionally, the support part and the crown part are integrally formed.
[0012] For example, optionally, the materials of the support part and the crown part are different. For example, further optionally, both the support part and the crown part are conductive structures.
[0013] In a specific embodiment of the first aspect of the present disclosure, the display substrate can further include a pixel definition layer. The pixel definition layer is located on one side of the separation structure close to the substrate, that is, between the substrate and the separation structure, and the pixel definition layer includes a plurality of pixel openings corresponding to the separation openings respectively. The pixel openings position the light-emitting elements and expose the first electrode. The pixel openings and the separation openings correspond to each other, and the pixel openings communicate with the corresponding separation openings.
[0014] In a specific embodiment of the first aspect of the present disclosure, in the first sub-pixel, the orthographic projection of the pixel opening corresponding to at least two sub-pixel blocks on the substrate is located within the orthographic projection of the same separation opening on the substrate, or the orthographic projection of the pixel opening corresponding to each sub-pixel block on the substrate is located within the orthographic projection of each separation opening on the substrate.
[0015] In a specific embodiment of the first aspect of the present disclosure, the edge of the first electrode overlaps with the edge of the support part to form a capacitor. In order for the pixel definition layer to cover the edge of the first electrode and separate the support part from the first electrode, the orthographic projection of the gap between two adjacent first electrodes on the substrate is located within the orthographic projection of the support part on the substrate.
[0016] When the light-emitting element is turned on at a low voltage, the luminance is low, resulting in a weak visual effect. Moreover, when there is a leakage current, the light-emitting element may emit light even in a low gradation (e.g., a dark state), that is, it cannot be turned off. In the above aspect, by forming a capacitor with the support portion and the edge portion of the first electrode, it can be charged during the turn-on stage of the light-emitting element, so that the light-emitting element can reach a preset luminance requirement when emitting light rays, thereby improving the turn-on voltage of the light-emitting element. Also, with this design, it is possible to avoid the light-emitting element emitting light in a low gradation.
[0017] For example, optionally, the pixel definition layer is an inorganic layer. Since the thickness of the inorganic layer is thin, it can be ensured that the capacitor formed between the edge of the first electrode and the edge of the support portion has sufficient capacitance.
[0018] In a specific embodiment of the first aspect of the present disclosure, since the light rays between two adjacent sub-pixel blocks are blocked by the separation structure, the separation structure extends continuously between two adjacent sub-pixel blocks.
[0019] In a specific embodiment of the first aspect of the present disclosure, in the first display area, the separation structure partitions a plurality of light-transmitting openings, and the light-transmitting openings are located between adjacent sub-pixel blocks within the same first sub-pixel.
[0020] In the above aspect, since a transparent display or an under-display identification function such as fingerprint identification or under-display photography can be realized in the area where the light-transmitting opening of the display panel is provided, a light-transmitting opening is provided in the separation structure to allow light to pass through the area where the light-transmitting opening of the display panel is provided.
[0021] In a specific embodiment of the first aspect of the present disclosure, the display panel may further include a touch structure. The touch structure is located on the light-emitting side of the display substrate and includes touch electrodes. The touch electrodes have a grid-like structure, and the orthographic projection of the grid lines of the touch electrodes onto the display substrate is located in the gap between the first sub-pixels.
[0022] In the above aspect, by providing a light-transmitting opening for transmitting light inside the first sub-pixel, the adjacent length between the light-transmitting opening and the grid lines can be reduced, or the adjacency between the light-transmitting opening and the grid lines can be avoided, thereby reducing the problem of signal interference when the touch function and the display function are driven.
[0023] In a specific embodiment of the first aspect of the present disclosure, the orthographic projection of the first electrode onto the substrate is located outside the orthographic projection of the light-transmitting opening onto the substrate. Conductive lines are provided on the substrate. In the first sub-pixel having a sub-pixel block, the first electrodes of the light-emitting elements corresponding to two adjacent sub-pixel blocks are connected to each other via the conductive lines. In this design, since the first electrode is provided avoiding the light-transmitting opening, the light transmittance of the display panel at the light-transmitting opening may be improved, and the light transmittance of the region where the light-transmitting opening is located can be improved.
[0024] In another specific embodiment of the first aspect of the present disclosure, in the first sub-pixel, the light-emitting elements corresponding to two adjacent sub-pixel blocks share the first electrode. For example, at the position where there is a light-transmitting opening, the first electrode may be provided with a via hole overlapping the light-transmitting opening to avoid blocking the light rays incident on the light-transmitting opening.
[0025] In another specific embodiment of the first aspect of the present disclosure, the first electrode includes a reflective electrode layer and a transparent electrode layer laminated on a substrate. The reflective electrode layer is located between the transparent electrode layers. In the first sub-pixel having a sub-pixel block, the first electrode of the light-emitting element in the sub-pixel block is connected through the transparent electrode layer, and the orthographic projection of the light-transmitting opening onto the substrate is located within the orthographic projection of the transparent electrode layer onto the substrate. With this design, the setting of the separation opening does not increase the difficulty of the manufacturing process of the display substrate and does not affect the layout of the circuits in the substrate.
[0026] In a specific embodiment of the first aspect of the present disclosure, the emission color of the first sub-pixel is selected from at least one of red, green, and blue.
[0027] In a specific embodiment of the first aspect of the present disclosure, the first sub-pixel is a first-color sub-pixel that emits light of one color. The first display region further includes a plurality of second-color sub-pixels and a plurality of third-color sub-pixels arranged in an array in the first direction. Each adjacent first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel constitute one pixel. In each pixel, the first-color sub-pixel is located between the second-color sub-pixel and the third-color sub-pixel. The colors of the emitted light of the first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel are different, and the second-color sub-pixel and the third-color sub-pixel are both in a continuous structure. For example, optionally, along the direction from the second-color sub-pixel to the third-color sub-pixel, the width of the first-color sub-pixel is equal to the width of the light-transmitting opening. For example, optionally, the wavelengths of the emitted light of the second-color sub-pixel, first-color sub-pixel, and third-color sub-pixel decrease sequentially. For example, optionally, the second-color sub-pixel, first-color sub-pixel, and third-color sub-pixel emit red light, green light, and blue light sequentially.
[0028] In the above aspect, between the light transmission aperture and the grid lines, there are sub-pixel blocks, sub-pixels of the second color, and sub-pixels of the third color that separate them, so that they are not adjacent to the grid lines. As a result, the problem that the touch function and the display function interfere with each other during driving is significantly reduced.
[0029] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixels are classified into sub-pixels of the first color and sub-pixels of the second color that emit at least two colors of light respectively. The first display area further includes a number of sub-pixels of the third color arranged in an array in the first direction. Each adjacent sub-pixel of the first color, sub-pixel of the second color, and sub-pixel of the third color constitutes one pixel. In each pixel, the sub-pixel of the second color is located between the sub-pixel of the first color and the sub-pixel of the third color, and the sub-pixels of the third color have a continuous structure. For example, optionally, in each pixel, the light transmission apertures corresponding to the sub-pixels of the first color and the sub-pixels of the second color are communicated with each other. For example, optionally, on one side of the sub-pixel of the first color away from the sub-pixel of the second color, the distance from the light transmission aperture to the grid line is greater than the distance from the sub-pixel of the first color to the grid line. For example, optionally, the wavelengths of the emitted light of the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color decrease sequentially. For example, optionally, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color emit red light, green light, and blue light sequentially.
[0030] In the above aspect, the light transmission aperture can have a large design area (increasing the set number of light transmission apertures). As a result, the area where the light transmission aperture is located has a higher light transmittance. Furthermore, with this design, the adjacent length between the light transmission aperture and the grid lines is short, and the interval between adjacent positions is large. Thereby, the problem that the touch function and the display function interfere with each other during driving can be reduced.
[0031] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel is classified into at least a first-color sub-pixel, a second-color sub-pixel, and a third-color sub-pixel that each emit light rays of at least three types of colors. Each adjacent first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel constitute one pixel. In each pixel, the second-color sub-pixel is located between the first-color sub-pixel and the third-color sub-pixel. For example, optionally, in each pixel, the light transmission apertures corresponding to the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel communicate with each other. For example, optionally, on one side of the first-color sub-pixel away from the second-color sub-pixel, the distance from the light transmission aperture to the grid line is greater than the distance from the first-color sub-pixel to the grid line, and on one side of the third-color sub-pixel away from the second-color sub-pixel, the distance from the light transmission aperture to the grid line is greater than the distance from the third-color sub-pixel to the grid line. For example, optionally, the wavelengths of the emitted light of the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel decrease sequentially. For example, optionally, the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel sequentially emit red light, green light, and blue light.
[0032] In the above aspect, the light transmission aperture can have a larger design area (increasing the set number of light transmission apertures). Thereby, the area where the light transmission aperture is located has a higher light transmittance. Further, with this design, the adjacent length between the light transmission aperture and the grid line is short, and the interval between adjacent positions is large, thereby reducing the problem that the touch function and the display function interfere with each other during driving.
[0033] In a specific embodiment of the first aspect of the present disclosure, the touch electrode includes a plurality of mesh-shaped holes surrounded by grid lines. The mesh-shaped holes correspond one-to-one to sub-pixels, and the sub-pixels are located within the orthographic projection of the corresponding mesh-shaped holes onto the display substrate. For example, further, the centroid of the orthographic projection of the mesh-shaped hole onto the display substrate coincides with the centroid of the corresponding sub-pixel. With this design, the luminance difference of the light rays emitted from the sub-pixels at the same viewing angle and in different directions can be reduced, and color shift can be reduced.
[0034] In another specific embodiment of the first aspect of the present disclosure, the touch electrode includes a plurality of mesh-shaped holes surrounded by grid lines. The mesh-shaped holes correspond one-to-one to the first sub-pixels, and the first sub-pixels are located within the orthographic projection of the corresponding mesh-shaped holes onto the display substrate. For example, further, the centroid of the orthographic projection of the mesh-shaped hole onto the display substrate coincides with the centroid of the corresponding pixel. With this design, the luminance difference of the light rays emitted from the first sub-pixels at the same viewing angle and in different directions can be reduced, and color shift can be reduced.
[0035] For example, optionally, the touch electrode includes a plurality of first electrode bands arranged in parallel and a plurality of second electrode bands arranged in parallel. The first electrode bands and the second electrode bands intersect, and the first electrode bands and the second electrode bands are provided in a grid-like structure.
[0036] In a specific embodiment of the first aspect of the present disclosure, the entire display area is the first display area. With this design, the display panel can be applied to a scene of transparent display.
[0037] In another specific embodiment of the first aspect of the present disclosure, the display area further includes a second display area. The second display area is located on one side of the first display area, and the light transmittance of the first display area is greater than that of the second display area. For example, the second display area is a non-translucent area. With this design, the display panel can be applied to scenes such as fingerprint identification and under-display photography.
[0038] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel includes sub-pixels of a first color, sub-pixels of a second color, and sub-pixels of a third color that are spaced apart from each other and have different colors, and the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are provided adjacent to each other.
[0039] In another specific embodiment of the first aspect of the present disclosure, the sub-pixels of the second color are located on one side of the sub-pixels of the first color in the second direction, the sub-pixels of the third color are located on one side of the sub-pixels of the first color in the first direction, and the first direction and the second direction intersect.
[0040] In another specific embodiment of the first aspect of the present disclosure, in the first direction, the sub-pixels of the first color and the sub-pixels of the second color have the same length, and both side edges are flush with each other, forming a rectangular structure.
[0041] In another specific embodiment of the first aspect of the present disclosure, in the first direction, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color have the same length.
[0042] In another specific embodiment of the first aspect of the present disclosure, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are long strip-shaped and are arranged at intervals in sequence in the first direction.
[0043] In another specific embodiment of the first aspect of the present disclosure, in the second direction intersecting the first direction, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color have the same length, and both side edges are flush with each other, forming a rectangular structure.
[0044] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel includes at least three sub-pixel blocks, and the plurality of sub-pixel blocks are provided surrounding.
[0045] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel has at least one sub-pixel block on one side of the same sub-pixel block in the first direction and the second direction.
[0046] In another specific embodiment of the first aspect of the present disclosure, the separation structure extends along the first direction and the second direction, the first sub-pixel is separated by the separation structure, and forms a sub-pixel block adjacent in the first direction and / or a sub-pixel block adjacent in the second direction.
[0047] In another specific embodiment of the first aspect of the present disclosure, the sub-pixels of the first color include a sub-pixel blocks, the sub-pixels of the second color include b sub-pixel blocks, and the sub-pixels of the third color include c sub-pixel blocks, where a, b, and c satisfy a≧b≧c.
[0048] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel includes two sub-pixel blocks, and the two sub-pixel blocks are spaced apart along the first direction.
[0049] In another specific embodiment of the first aspect of the present disclosure, in the second direction, the two sub-pixel blocks have the same length, and both side edges are flush with each other, thereby forming a rectangular structure.
[0050] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel includes a first sub-pixel block, a second sub-pixel block, and a third sub-pixel block. The first sub-pixel block and the second sub-pixel block are located on one side of the third sub-pixel block in the first direction, and the first sub-pixel block and the second sub-pixel block are spaced apart in the second direction.
[0051] In another specific embodiment of the first aspect of the present disclosure, in the first direction, the first sub-pixel block and the second sub-pixel block have the same length, and their two side edges are flush with each other, thereby forming a rectangular structure.
[0052] In another specific embodiment of the first aspect of the present disclosure, in the first direction, the lengths of the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block are the same.
[0053] In another specific embodiment of the first aspect of the present disclosure, in the second direction, the side edge of the first sub-pixel block away from the second sub-pixel block is flush with one side edge of the third sub-pixel block.
[0054] In another specific embodiment of the first aspect of the present disclosure, in the second direction, the side edge of the second sub-pixel block away from the first sub-pixel block is flush with one side edge of the third sub-pixel block.
[0055] In another specific embodiment of the first aspect of the present disclosure, the first sub-pixel block includes four sub-pixel blocks, and the four sub-pixel blocks are enclosed.
[0056] In another specific embodiment of the first aspect of the present disclosure, in the first direction and / or the second direction, at least two adjacent sub-pixel blocks have the same length, and their two side edges are flush with each other, thereby forming a rectangular structure.
[0057] In another specific embodiment of the first aspect of the present disclosure, in the first sub-pixel, the sizes of the orthographic projections of at least two sub-pixel blocks onto the substrate are the same.
[0058] In another specific embodiment of the first aspect of the present disclosure, at least one sub-pixel block of sub-pixels of a first color and one sub-pixel block of sub-pixels of a second color have the same size in the orthographic projection onto the substrate.
[0059] In another specific embodiment of the first aspect of the present disclosure, the orthographic projection of the first sub-pixel onto the substrate is a polygon, the polygon has a plurality of corner regions, and at least one corner region is provided with a sub-pixel block.
[0060] In another specific embodiment of the first aspect of the present disclosure, the edge of the orthographic projection of the sub-pixel block onto the substrate includes a straight edge and / or a curved edge.
[0061] In another specific embodiment of the first aspect of the present disclosure, at least two straight edges are perpendicular to each other to form a right angle.
[0062] In another specific embodiment of the first aspect of the present disclosure, in at least two adjacent sub-pixel blocks, the right angles of the two sub-pixel blocks are provided at a distance from each other.
[0063] The second aspect of the present disclosure provides a display panel, the display panel includes a first display area, the first display area includes a plurality of first sub-pixels arranged in an array in a first direction, the first sub-pixels include at least two spaced-apart sub-pixel blocks, the display panel includes a pixel definition layer located on one side of the substrate and including a plurality of pixel apertures, the light-emitting elements of the sub-pixel blocks are located within the pixel apertures, in the first sub-pixels, at least two adjacent sub-pixel blocks are included, and the at least two adjacent sub-pixel blocks are separated by the pixel definition layer.
[0064] In a specific embodiment of the second aspect of the present disclosure, the display panel is located on one side away from the substrate of the pixel definition layer and includes a separation structure that partitions a plurality of separation openings. The light-emitting elements of the sub-pixel blocks are respectively positionally restricted within the separation openings. The pixel openings and the separation openings correspond to each other, and the pixel openings communicate with the corresponding separation openings.
[0065] In another specific embodiment of the second aspect of the present disclosure, in the first sub-pixel, it has at least two adjacent sub-pixel blocks, and the at least two adjacent sub-pixel blocks are separated by a separation structure.
[0066] In another specific embodiment of the second aspect of the present disclosure, in the first sub-pixel, the orthographic projection of the pixel openings corresponding to at least two sub-pixel blocks onto the substrate is located within the orthographic projection of the same separation opening onto the substrate, or the orthographic projection of the pixel openings corresponding to each sub-pixel block onto the substrate is located within the orthographic projection of each separation opening onto the substrate.
[0067] The third aspect of the present disclosure provides a display device, and the display device includes the display panel of the first aspect described above.
[0068] In a specific embodiment of the third aspect of the present disclosure, the entire display area within the display panel is the first display area.
[0069] In another specific embodiment of the third aspect of the present disclosure, the display area within the display panel includes a first display area and a second display area located on at least one side of the first display area. The first display area is a light-transmitting area, the second display area is a non-light-transmitting area, and the display panel further includes a photosensitive element. The photosensitive element is located on one side away from the touch structure of the substrate, and the orthographic projection of the photosensitive element onto the display substrate overlaps at least partially with the first display area.
[0070] The fourth aspect of the present disclosure provides a method for manufacturing a display panel, the display panel including a first display area, the first display area including a plurality of first sub-pixels arranged in an array in a first direction, the first sub-pixels including at least two sub-pixel blocks, the method comprising: sequentially manufacturing a first electrode and a pixel definition layer on a substrate, the pixel definition layer including a plurality of pixel apertures that position the light-emitting elements and expose the first electrode; manufacturing a separation structure on one side of the pixel definition layer away from the substrate, the separation structure partitioning a plurality of separation apertures, the pixel apertures and the separation apertures corresponding to and communicating with each other; sequentially manufacturing a light-emitting functional layer and a second electrode on one side of the separation structure away from the substrate, the first electrode, the light-emitting functional layer, and the second electrode sequentially stacked on the substrate forming the light-emitting elements of the sub-pixel blocks; wherein, in the first sub-pixel, there are at least two adjacent sub-pixel blocks, and the two adjacent sub-pixel blocks are separated by the separation structure.
[0071] In another specific embodiment of the fourth aspect of the present disclosure, the first display area further includes a plurality of second-color sub-pixels and a plurality of third-color sub-pixels arranged in an array in the first direction, and adjacent first-color sub-pixels, second-color sub-pixels, and third-color sub-pixels constitute one pixel, and the method further comprises: manufacturing the light-emitting elements of the first-color sub-pixels on the substrate, the first-color sub-pixels including a sub-pixel blocks; manufacturing the light-emitting elements of the second-color sub-pixels on the substrate, the second-color sub-pixels including b sub-pixel blocks; where a and b satisfy a > b.
[0072] In another specific embodiment of the fourth aspect of the present disclosure, after the step of manufacturing the light-emitting elements of the second-color sub-pixels on the substrate, the method further comprises: Manufacturing a light-emitting element of a sub-pixel of a third color on a substrate, the sub-pixel of the third color including c sub-pixel blocks, where b and c satisfy b > c.
Brief Description of the Drawings
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Embodiments for Carrying out the Invention
[0074] Hereinafter, with reference to the accompanying drawings in the embodiments of this specification, the technical solutions in the embodiments of this specification will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this specification, not all of them. Based on the embodiments of this specification, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of this specification.
[0075] In the manufacturing process of the light-emitting element of the display panel, contaminants such as dust and debris of processing materials may enter the openings for accommodating the light-emitting element (for example, the separation opening and pixel opening mentioned in the following embodiments). Such contaminants may reduce the light-emitting performance of the light-emitting element and even cause the light-emitting element to be extinguished when it emits light.
[0076] At least one embodiment of the present disclosure provides a display panel for solving at least the above technical problems. The display panel includes a display substrate, the display substrate includes a first display area, the first display area includes a plurality of first sub-pixels arranged in an array in a first direction, the first sub-pixels include at least two sub-pixel blocks, and in the first sub-pixel, there are at least two adjacent sub-pixel blocks, and the two adjacent sub-pixel blocks are separated by a separation structure. In the display panel, by dividing the first sub-pixel into a plurality of sub-pixel blocks, only a specific sub-pixel block will have a light emission failure due to debris, and since the first sub-pixel itself can still emit light, the risk that harmful substances such as debris enter the sub-pixel and cause the display function of the display panel to deteriorate is reduced.
[0077] Hereinafter, with reference to the accompanying drawings, the structure of the display panel according to at least one embodiment of the present disclosure will be described in detail. Further, in the drawings, in order to intuitively represent the positional relationship of each component in the display panel, a spatial orthogonal coordinate system is established with the substrate (or display substrate) in the display panel as a reference. In the spatial orthogonal coordinate system, the X-axis and the Y-axis are parallel to the plane where the substrate is located, and the Z-axis is perpendicular to the plane where the substrate is located.
[0078] As shown in FIGS. 1 to 3, the display substrate 10 in the display panel includes a display area 11 and a frame area 12 surrounding the display area 11. In the display area 11, sub-pixels (which can also be called sub-pixels) that emit light rays of different colors such as R, G, and B are arranged. For example, one pixel (which can be called a large pixel) is formed by every three adjacent sub-pixels R, G, and B. At least one sub-pixel (sub-pixel G in the figure) includes at least two mutually separated sub-pixel blocks (for example, sub-pixel blocks G1 and G2). In this case, even if the sub-pixel block G1 cannot emit light due to the intrusion of debris, a certain amount of light rays of the sub-pixel G can be ensured by the sub-pixel block G2. The first direction may be a direction parallel to the X-axis or a direction parallel to the Y-axis.
[0079] In addition, in the embodiments of the present disclosure, all sub-pixels including a plurality of sub-pixel blocks are collectively referred to as first sub-pixels. In this case, when all sub-pixels in the display panel are designed to include sub-pixel blocks, the display panel includes only the first sub-pixels. In this case, each of the first sub-pixels emits light rays of various colors. When a part of the sub-pixels in the display panel is designed to include sub-pixel blocks, a part of the sub-pixels is referred to as the first sub-pixels, and the other sub-pixels are classified into other types of sub-pixels such as, for example, second sub-pixels. In this case, the first sub-pixels may be designed to emit light rays of the same color or may be designed to emit light rays of various colors.
[0080] For example, in some embodiments of the present disclosure, the display panel is designed in relation to brightness correction. For example, when the sub-pixel G shown in FIG. 2 is used as the first sub-pixel, when the sub-pixel block G1 cannot emit light due to the intrusion of debris, the emission brightness of the sub-pixel block G2 is adjusted according to the emission brightness of the sub-pixel G, so as to adjust the brightness of the sub-pixel G to the expected brightness.
[0081] For example, in the second direction, the physical structure of the display substrate 10 includes a substrate 100, and a display functional layer 200 and a separation structure 210 located on the substrate 100. The second direction may be a direction parallel to the Z-axis.
[0082] For example, the separation structure 210 partitions a plurality of separation openings 202, and the light-emitting elements 220 are positionally restricted within the separation openings 202.
[0083] The display functional layer 200 includes a plurality of light-emitting elements 220. At least one light-emitting element 220 is provided in each sub-pixel block, that is, the light-emitting element 220 is a physical structure of the sub-pixel and the sub-pixel block. The light-emitting element 220 includes a first electrode 221, a light-emitting functional layer 223, and a second electrode 222 sequentially stacked on the substrate 100. The first electrodes 221 corresponding to the sub-pixel blocks G1 and G2 located within the same sub-pixel G are electrically connected to each other directly or indirectly.
[0084] Note that even sub-pixels that do not include sub-pixel blocks include the light-emitting elements 220 having the above structure.
[0085] For example, the light-emitting functional layer 223 can include a first common layer 2231, a light-emitting layer 2232, and a second common layer 2233. The first common layer 2231, the light-emitting layer 2232, and the second common layer 2233 are sequentially stacked on the anode. The first common layer 2231 can include a hole injection layer, a hole transport layer, an electron blocking layer, etc. The second common layer 2233 can include an electron injection layer, an electron transport layer, a hole blocking layer, etc. In the arrangement of the separation structure 210, the first common layers (the main film layers that cause current crosstalk) of the respective light-emitting elements 220 need to be electrically isolated from each other.
[0086] In at least one embodiment of the present disclosure, the display area 11 includes a first display area 13, and the separation structure 210 can partition a plurality of light transmission openings 201. By positioning the light transmission openings 201 within the first display area 13, the first display area 13 of the display panel can be allowed to transmit light.
[0087] In the above aspect, since the first electrodes 221 of the two light-emitting elements 220 within the same first sub-pixel are electrically connected to each other (they may be directly electrically connected or indirectly electrically connected), the driving method of the entire pixel is not changed. Furthermore, by applying the separation structure 210, a mask plate is not required in the manufacturing process of the light-emitting element 220. Therefore, since it is not necessary to consider the alignment accuracy problem of the manufacturing process, it is advantageous to reduce the gap size between the light-emitting elements 220 and increase the pixel arrangement density PPI of the display panel (specifically, refer to the description of the embodiments related to the following manufacturing method of the display panel). Furthermore, in the first display area 13, by providing the light-transmitting opening 201 in the separation structure 210, light can be transmitted through the area of the display panel where the light-transmitting opening 201 is provided. Therefore, the first display area 13 of the display panel can achieve transparent display or an under-display identification function such as fingerprint identification and under-display photography.
[0088] In at least one embodiment of the present disclosure, the separation structure 210 includes a support portion 211 and a crown portion 212 sequentially laminated on the substrate 100. The orthographic projection of the support portion 211 onto the substrate 100 is located within the orthographic projection of the crown portion 212 onto the substrate 100. The support portion 211 is a conductive structure. The second electrode 222 of the light-emitting element 220 is located in the corresponding separation opening 202 and is connected to the support portion 211. In this way, in the gap between adjacent light-emitting elements 220, the overall separation structure 210 basically has a shape that is wider at the top and narrower at the bottom. In this way, in the manufacturing process of the light-emitting element 220, by increasing the blocking effect of the separation structure 210 on the light-emitting functional layer 223 (including the first common layer 2231, and the first common layer 2231 is the main film layer that causes current crosstalk), the problem of current crosstalk between adjacent light-emitting elements 220 can be reduced.
[0089] In some designs of the present disclosure, the support portion 211 and the crown portion 212 can be designed as a multi-layer laminated structure as shown in FIG. 5, which is convenient for being composed of different materials respectively. For example, in the following embodiments, the support portion 211 is designed to be conductive, but the crown portion 212 is not limited to being designed to be conductive. Or, in some other designs of the present disclosure, the support portion 211 and the crown portion 212 may be provided as an integrated structure to increase the robustness of the separation structure 210.
[0090] In at least one embodiment of the present disclosure, as shown in FIG. 5, the support portion 211 may be a conductive structure, and the second electrode 222 is located within the separation opening 202 and connected to the support portion 211. In this way, the support portion 211 of the separation structure 210 serially connects the second electrodes 222, so that the support portion 211 and the second electrodes 222 form a common electrode to facilitate driving.
[0091] Note that the material of the second electrode 222 may be a metal material. The thinner the thickness of the second electrode 222, the higher its light transmittance, but its resistivity also increases. If the thickness of the second electrode 222 is too thin, when the separation structure 210 is not provided, the voltage drop of the second electrode 222 (in this case, the common electrode) is too large. In the embodiments of the present disclosure, since the second electrode 222 is connected to the conductive support portion 211 and the thickness limitation of the second electrode 222 can be released, the thickness of the second electrode 222 becomes thinner and the light transmittance becomes higher.
[0092] In at least one embodiment of the present disclosure, the support portion 211 may be a metal conductive structure. Since the conductivity of the metal material is high, the voltage drop during cathode driving can be reduced. Correspondingly, although the metal material can transmit light only when the thickness is extremely thin (for example, about several tens of nanometers), the separation structure 210 requires a certain thickness to partition the light-emitting functional layer 223 (including the first common layer 2231). Correspondingly, the support portion 211 of the separation structure 210 is substantially non-light-transmissive. Therefore, by simply providing the light-transmitting opening 201, the separation structure 210 can transmit light.
[0093] In at least one embodiment of the present disclosure, as shown in FIGS. 5 and 6, the display substrate may further include a pixel definition layer 213. The pixel definition layer 213 is located on one side of the separation structure 210 close to the substrate 100, that is, the pixel definition layer 213 is located between the substrate 100 and the separation structure 210, and the pixel definition layer 213 includes a plurality of pixel openings 203 respectively corresponding to the separation openings 202. The pixel openings 203 position the light-emitting element 220 and expose the first electrode 221. The pixel openings 203 respectively correspond to the separation openings 202, and the pixel openings 203 communicate with the corresponding separation openings 202.
[0094] When the light-emitting element 220 is activated at a low voltage, the luminance is low, thereby the visual effect is not good, and when there is a leakage current, the light-emitting element 220 may emit light even in a low gradation (for example, a dark state), that is, it cannot be turned off.
[0095] As shown in FIG. 7, in at least one embodiment of the present disclosure, in the first sub-pixel, the orthographic projection of the pixel aperture 203 corresponding to at least two sub-pixel blocks onto the substrate 100 is located within the orthographic projection of the same separation aperture 202 onto the substrate 100. The pixel aperture 203 corresponding to the sub-pixel block is the pixel aperture 203 where the light-emitting element 220 of the sub-pixel block is located. By partitioning the entire first sub-pixel by the separation structure 210, the light-emitting functional layers 223 of each sub-pixel block in the first sub-pixel are located within the same separation aperture 202. That is, when it is only necessary to partition each other by the pixel definition layer 213 without providing the separation structure 210 between the sub-pixel blocks of the first sub-pixel, the overall manufacturing difficulty of the separation structure 210 is reduced. Also, the emission colors of the sub-pixel blocks within the same first sub-pixel are the same, and there is no problem of color mixing due to carrier crosstalk between the light-emitting functional layers 223 of each sub-pixel block. Therefore, the light-emitting effect of the first sub-pixel can be ensured without providing the separation structure 210 between the sub-pixel blocks of the same first sub-pixel.
[0096] As shown in FIG. 3, in at least one embodiment of the present disclosure, the orthographic projection of the pixel aperture 203 corresponding to each sub-pixel block onto the substrate 100 is located within the orthographic projection of each separation aperture 202 onto the substrate 100. Between each sub-pixel block, all are partitioned by a separation structure 210. Since the separation structure 210 is directly used to separate between each sub-pixel block and there is no need to use other mask plates to manufacture each sub-pixel block, the cost is reduced. Further, the separation structure 210 has a good blocking effect and can be separated and insulated from each other without affecting the light-emitting functional layers 223 of each sub-pixel block. The first sub-pixel is divided into a plurality of independent sub-pixel blocks. When at least one of the sub-pixel blocks is damaged and a dark spot problem occurs, the other sub-pixel blocks can continue to emit light normally, thereby ensuring the normal light emission of the display panel. That is, the first sub-pixel is divided into a plurality of sub-pixel blocks, and the influence of a single dark spot defect on the display effect of the display panel can be improved.
[0097] In at least one embodiment of the present disclosure, as shown in FIGS. 5 and 6, the orthographic projection of the gap between two adjacent first electrodes 221 onto the substrate 100 is located within the orthographic projection of the support portion 211 onto the substrate 100. Thereby, the edge of the first electrode 221 overlaps with the edge of the support portion 211 to form a capacitor, and the pixel definition layer 213 covers the edge of the first electrode 221 to partition the support portion 211 and the first electrode 221. In this way, by forming a capacitor by the edge portion of the support portion 211 and the first electrode 221, it is charged during the turn-on stage of the light-emitting element 220, thereby increasing the turn-on voltage of the light-emitting element 220 and reaching the preset luminance requirement when the light-emitting element 220 emits light. Furthermore, this design can also prevent the light-emitting element 220 from emitting light in a low tone.
[0098] For example, optionally, the pixel definition layer 213 is an inorganic layer. Since the thickness of the inorganic layer is thin, the capacitor that can be formed between the edge of the first electrode 221 and the edge of the support portion 211 thereby has sufficient capacitance. In at least one embodiment of the present disclosure, the separation structure 210 continuously extends between two adjacent sub-pixel blocks, so that the light rays between two adjacent sub-pixel blocks are blocked by the separation structure 210. By continuously extending the separation structure 210 between adjacent sub-pixel blocks, the light rays between two adjacent sub-pixel blocks are blocked by the separation structure 210, and stray light reaches the light emitting surface of the display panel through the region between adjacent sub-pixel blocks, thus avoiding the problems affecting the display effect of the display panel. Moreover, by continuously extending the separation structure 210, the distribution area of the separation structure 210 is increased, and even if the separation structure 210 is made of a metal material or other materials having a reflection effect, the separation structure 210 having a large area can increase the amount of reflected light and further increase the emission luminance of the display panel.
[0099] Furthermore, the display panel has a touch function, and functions such as transparent display and under-display identification (fingerprint identification, under-display photography) can also be considered. In this way, in the display panel, a light-transmitting region is partitioned, and a light transmission hole is provided in the gap between sub-pixels in the light-transmitting region to realize light transmission. However, in the region where the light transmission hole is located, signal interference may occur between the conductive structure (for example, the following touch electrode) for realizing the touch function and the lower-layer driving circuit (for example, the pixel driving circuit in the following substrate), thereby causing the touch or display function to malfunction.
[0100] For example, as shown in FIGS. 1, 4 to 9B, in the first display area 13, a light transmission aperture 201 is provided, and the sub-pixel G is the first sub-pixel. The sub-pixel G is divided into two sub-pixel blocks G1 and G2 by the light transmission aperture 201. In this way, by providing the light transmission aperture 201, the first display area 13 can have a certain light transmittance for under-display identification, photographing, or transparent display. In some embodiments of the present disclosure, by arranging some wires in the frame area 12 within the display area 11, the frame area 12 can be designed as a one-sided frame.
[0101] For example, as shown in FIGS. 1, 4 to 9B, the display panel may further include a touch structure 20. The touch structure 20 is located on the light-emitting side of the display substrate 10 and includes a touch electrode 400. The touch electrode 400 has a grid structure, and the orthographic projection of the grid lines of the touch electrode 400 onto the display substrate 10 is located in the gaps between sub-pixels (here, the sub-pixels may all be the first sub-pixels, or some of the sub-pixels may be the first sub-pixels). In this way, in the area where the light transmission aperture 201 is located, the grid lines 21 of the touch electrode 400 surround the periphery of the light transmission aperture 201, that is, there are sub-pixels or sub-pixel blocks (such as sub-pixel blocks G1 and G2) between at least one side (in FIG. 4, three sides) of the light transmission aperture 201 and the grid lines 21, separating them. In this way, in the light transmission aperture 201, the distance between the grid lines 21 of the touch electrode 400 and the driving circuit in the display substrate 10 increases, thereby reducing the interference between the touch electrode 400 and the driving circuit.
[0102] In the embodiments of the present disclosure, the specific structure of the touch electrode is not limited and can be designed according to the requirements of the actual process. Hereinafter, different designs of the touch electrode will be described through various embodiments. Specifically, it is as follows.
[0103] In at least one embodiment of the present disclosure, as shown in FIGS. 8A and 8B, the touch electrode 400 includes a plurality of parallel first electrode strips 410 and a plurality of parallel second electrode strips 420. The first electrode strips 410 and the second electrode strips 420 are spaced apart from each other and intersect each other to form a touch unit at the intersection, and the first electrode strips 410 and the second electrode strips 420 are arranged in a grid-like electrode.
[0104] For example, in some embodiments of the present disclosure, as shown in FIGS. 8A and 8B, the first electrode strip 410 is located between the second electrode strip 420 and the separation structure 210. Macroscopically, the intersecting and overlapping region of the first electrode strip 410 and the second electrode strip 420 is the region where the touch unit is located. In the overlapping region, both the first electrode strip 410 and the second electrode strip 420 are transparent. The first electrode strip 410 and the second electrode strip 420 can be separated by an insulating layer 430.
[0105] For example, in some other embodiments of the present disclosure, as shown in FIGS. 9A and 9B, the first electrode strip 410 includes a plurality of spaced-apart first electrode blocks 411 and a plurality of first connection portions 412. The plurality of first electrode blocks 411 of the same first electrode strip 410 are connected by the first connection portions 412. The second electrode strip 420 includes a plurality of second electrode blocks 421 and a plurality of second connection portions 422. The plurality of second electrode blocks 421 of the same second electrode strip 420 are connected by the second connection portions 422. The first connection portions 412 and the second connection portions 422 intersect and are spaced apart from each other. Here, the first electrode blocks 411, the first connection portions 412, and the second electrode strip 420 are in the same layer, and the second connection portions 422 are located between the first connection portions 412 and the separation structure 210, or the second connection portions 422 are located on one side away from the separation structure 210 of the first connection portions 412. The touch electrode 400 designed in this way has a high light transmittance, and the alignment accuracy between the mesh-shaped holes, the light transmission openings 201, and the separation openings 202 is high, so that the light transmittance of the first display area 13 can be improved. In this design, the main parts of the first electrode strip 410 and the second electrode strip 420 are designed in the same layer, so that it is not necessary to consider the alignment problem of the mesh-shaped holes between the two, which is advantageous for improving the light transmittance of the touch electrode 400. For example, the second connection portions 422 and the first connection portions 412 can be separated by an insulating layer 430.
[0106] In the embodiments of the present disclosure, the types and numbers of sub-pixels provided with sub-pixel blocks are not limited and can be selected according to the requirements of the actual process. Hereinafter, various situations will be presented based on different embodiments.
[0107] For example, referring to FIG. 4 again, the sub-pixels included in each pixel are classified into a first sub-pixel R, a second sub-pixel G, and a third sub-pixel B with different emitted light colors. The second sub-pixel G is located between the first sub-pixels R. Note that the number of sub-pixels included in each pixel and the color of the emitted light can be designed according to the requirements of the actual process, and the embodiments of the present disclosure are not limited thereto. For example, the color of the emitted light of the first sub-pixel can be selected from at least one of red, green, and blue.
[0108] In some embodiments of the present disclosure, in each pixel, the sub-pixel located at the middle position is designed to include a sub-pixel block. That is, the first sub-pixel is a first-color sub-pixel that emits light of one color. The first display area further includes a plurality of second-color sub-pixels and a plurality of third-color sub-pixels arranged in an array in the first direction. Each adjacent first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel constitute one pixel. In each pixel, the first-color sub-pixel is located between the second-color sub-pixel and the third-color sub-pixel. The colors of the emitted light of the first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel are different, and both the second-color sub-pixel and the third-color sub-pixel have a continuous structure. For example, optionally, along the direction from the second-color sub-pixel to the third-color sub-pixel, the width of the first-color sub-pixel is equal to the width of the light transmission aperture. For example, optionally, the wavelengths of the emitted light of the second-color sub-pixel, first-color sub-pixel, and third-color sub-pixel decrease sequentially. For example, as shown in FIGS. 4 and 10, the second-color sub-pixel, first-color sub-pixel, and third-color sub-pixel are sequentially sub-pixel R, sub-pixel G, and sub-pixel B. The sub-pixel G is provided to include at least two sub-pixel blocks G1 and G2 separated by the light transmission aperture 201, and both the sub-pixel R and the sub-pixel B have a continuous structure.
[0109] When the sub-pixel G is designed to include a sub-pixel block, the width of the light transmission aperture 201 corresponding to the sub-pixel G can be designed according to the presence or absence of the surrounding grid lines 21. For example, as shown in FIG. 4, when the grid line 21 is arranged in the sub-pixel G, along the direction from the sub-pixel R to the sub-pixel B (the X-axis direction in FIG. 4), the width of the sub-pixel G is larger than the width of the light transmission aperture 201, or, as shown in FIG. 10, the light transmission aperture 201 is separated from the grid line 21 by the sub-pixel blocks G1, G2, the sub-pixel R, and the sub-pixel B, so that it is not adjacent to the grid line 21. Along the direction from the sub-pixel R to the sub-pixel B, the width of the sub-pixel G is equal to the width of the light transmission aperture 201, so that the light transmission aperture 201 has a large design area and can increase the light transmittance of the first display area. Furthermore, the distance between the light transmission aperture 201 and the grid line 21 is large, so that the problem that the touch function and the display function interfere with each other during driving can be greatly reduced.
[0110] In the embodiments of the present disclosure, the "continuous structure" means that all parts of the planar shape of the target object are connected and have only one outer edge but no inner edge, that is, the continuous structure does not surround an opening.
[0111] In some other embodiments of the present disclosure, in each pixel, at least two adjacent sub-pixels are designed to include sub-pixel blocks, and the design of at least one sub-pixel is a continuous structure, that is, the first sub-pixel is classified into a first-color sub-pixel and a second-color sub-pixel that emit at least two types of colored light rays respectively, and the first display area can further include several third-color sub-pixels arranged in an array in the first direction. Each adjacent first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel constitute one pixel. In each pixel, the second-color sub-pixel is located between the first-color sub-pixel and the third-color sub-pixel, and the third-color sub-pixel has a continuous structure. For example, optionally, in each pixel, the light-transmitting openings corresponding to the first-color sub-pixel and the second-color sub-pixel communicate with each other. For example, optionally, on one side of the first-color sub-pixel away from the second-color sub-pixel, the distance from the light-transmitting opening to the grid line is greater than the distance from the first-color sub-pixel to the grid line. For example, optionally, the wavelengths of the emitted light of the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel decrease sequentially. For example, as shown in FIGS. 11 to 13, the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel are sequentially the sub-pixel R, the sub-pixel G, and the sub-pixel B. The sub-pixel R is provided to include at least two sub-pixel blocks R1 and R2 separated by the light-transmitting opening 201. The sub-pixel G is designed to include at least two sub-pixel blocks G1 and G2 separated by the light-transmitting opening 201, and the sub-pixel B has a continuous structure.
[0112] For example, when both sub-pixel R and sub-pixel G are provided to include two sub-pixel blocks, as shown in FIG. 12, by moving the side of the light transmission aperture 201 adjacent to the grid line 21 inward, the distance between the light transmission aperture 201 and the grid line 21 is increased. That is, on one side of the sub-pixel R away from the sub-pixel G, the distance from the light transmission aperture 201 to the grid line 21 is greater than the distance from the sub-pixel R to the grid line 21.
[0113] For example, when both sub-pixel R and sub-pixel G are provided to include two sub-pixel blocks, by merging adjacent light transmission apertures, the designed area of the aperture for transmitting light can be increased. As shown in FIG. 12, in each pixel, the light transmission apertures 201 corresponding to the sub-pixel R and the sub-pixel G communicate with each other. In this way, the light transmission aperture 201 can have a large designed area (the number of arrangements of the light transmission aperture 201 increases), and thereby the first display region 13 has a high light transmittance.
[0114] In some embodiments of the present disclosure, in each pixel, all sub-pixels can be designed to include sub-pixel blocks, that is, the first sub-pixel can be classified into at least the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel that emit light rays of at least three types of colors respectively. Each adjacent first-color sub-pixel, second-color sub-pixel, and third-color sub-pixel form one pixel. In each pixel, the second-color sub-pixel is located between the first-color sub-pixel and the third-color sub-pixel. For example, optionally, in each pixel, the light-transmitting apertures corresponding to the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel communicate with each other. For example, optionally, on one side of the first-color sub-pixel away from the second-color sub-pixel, the distance from the light-transmitting aperture to the grid line is greater than the distance from the first-color sub-pixel to the grid line, and on one side of the third-color sub-pixel away from the second-color sub-pixel, the distance from the light-transmitting aperture to the grid line is greater than the distance from the third-color sub-pixel to the grid line. For example, optionally, the wavelengths of the emitted light of the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel decrease sequentially. For example, optionally, the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel emit red light, green light, and blue light sequentially. For example, as shown in FIG. 14, the first-color sub-pixel, the second-color sub-pixel, and the third-color sub-pixel are the sub-pixel R, the sub-pixel G, and the sub-pixel B in sequence. The sub-pixel R, the sub-pixel G, and the sub-pixel B are all provided to include at least two sub-pixel blocks separated by the light-transmitting aperture 201. For example, in each pixel, the light-transmitting apertures 201 corresponding to the sub-pixel R, the sub-pixel G, and the sub-pixel B communicate with each other. For example, further, on one side of the sub-pixel R away from the sub-pixel G, the distance from the light-transmitting aperture 201 to the grid line is greater than the distance from the sub-pixel R to the grid line 21, and on one side of the sub-pixel B away from the sub-pixel G, the distance from the light-transmitting aperture 201 to the grid line 21 is greater than the distance from the sub-pixel B to the grid line 21.In this way, the light transmission aperture 201 can have a large design area (the number of arrangements of the light transmission apertures 201 increases), whereby the first display region 13 has a higher light transmittance. Further, with this design, the length of the light transmission aperture 201 adjacent to the grid line 21 is short, and the interval between adjacent positions is large, thereby reducing the problem that the touch function and the display function interfere with each other during driving.
[0115] For example, in at least one embodiment of the present disclosure, the wavelengths of the emitted light of the sub-pixel R, the sub-pixel G, and the sub-pixel B sequentially decrease. In this way, the sub-pixel G is designed to emit light rays sensitive to the human eye. In this case, the design area required for the sub-pixel G is relatively small. When the sub-pixel G is designed to include a sub-pixel block, the influence on the light emission efficiency of the pixel is reduced. For example, further optionally, the sub-pixel R, the sub-pixel G, and the sub-pixel B can be designed to sequentially emit red light, green light, and blue light.
[0116] In the embodiments of the present disclosure, when the grid lines of the touch electrodes are located in the gaps between the sub-pixels, the specific positional relationship between the grid lines and the sub-pixels is not further limited and can be designed according to the requirements of the actual process. Hereinafter, exemplary descriptions will be given with reference to some specific embodiments.
[0117] For example, in some embodiments of the present disclosure, referring again to FIGS. 4 and 11, the touch electrode includes a plurality of mesh-shaped holes surrounded by the grid lines 21. The mesh-shaped holes correspond one-to-one to the sub-pixels R, G, B. The sub-pixels R, G, B are located within the orthographic projection of the corresponding mesh-shaped holes onto the display substrate, that is, the grid lines surround each of the sub-pixels R, G, B.
[0118] For example, as shown in FIGS. 4 and 11, the centroid of the orthographic projection of the mesh-shaped holes onto the display substrate coincides with the centroids of the corresponding sub-pixels R, G, and B. With this design, the luminance difference of the light rays emitted from the sub-pixels R, G, and B at the same viewing angle and in different directions can be alleviated, and color deviation can be reduced.
[0119] For example, in some other embodiments of the present disclosure, referring again to FIGS. 10 and 12 to 14, the touch electrode includes a plurality of mesh-shaped holes surrounded by grid lines 21. The mesh-shaped holes correspond one-to-one to the pixels, and the pixels are located within the orthographic projection of the corresponding mesh-shaped holes onto the display substrate, that is, the grid lines 21 surround the pixels.
[0120] For example, as shown in FIGS. 10 and 12 to 14, the centroid of the orthographic projection of the mesh-shaped holes onto the display substrate coincides with the centroid of the corresponding pixel. With this design, the luminance difference of the light rays emitted from the sub-pixels at the same viewing angle and in different directions can be reduced, and color deviation can be reduced.
[0121] In the embodiments of the present disclosure, for the first sub-pixel provided with a sub-pixel block, the connection method of the first electrodes of the adjacent light-emitting elements therein is not limited.
[0122] For example, in at least one embodiment of the present disclosure, referring again to FIG. 5, the substrate 100 includes a base and a driving circuit layer located on the base. The driving circuit layer includes a plurality of pixel driving circuits located in the display area, and the display function layer is located on the driving circuit layer. For example, the pixel driving circuit includes a plurality of transistors TFT, capacitors, etc. For example, it can be formed in various forms such as 2T1C (i.e., two transistors (TFT) and one capacitor (C)), 3T1C, or 7T1C. The pixel driving circuit is connected to the light-emitting element 220 to control the switching state and the emission luminance of the light-emitting element 220.
[0123] In some embodiments of the present disclosure, referring to FIG. 5 again, the orthographic projection of the first electrode 221 onto the substrate 100 is located outside the orthographic projection of the light transmission aperture 201 onto the substrate 100. A conductive line 101 is provided on the substrate 100. In the first sub-pixel having sub-pixel blocks, the first electrodes 221 of the light-emitting elements 220 corresponding to two adjacent sub-pixel blocks are connected to each other via the conductive line 101. In this design, the first electrode 221 is arranged to avoid the light transmission aperture 201, thereby increasing the light transmittance at the light transmission aperture 201 of the display panel, and thereby increasing the light transmittance of the first display area 13. Since the width of the conductive line 101 is narrow and does not block the light transmission at the light transmission aperture 201, it is easy to be arranged to avoid the light transmission aperture 201.
[0124] In some other embodiments of the present disclosure, as shown in FIGS. 15 and 16, the first electrode 221 includes a reflective electrode layer 2211 and a transparent electrode layer 2212 laminated on the substrate 100. The reflective electrode layer 2211 is located between the transparent electrode layers 2212. In the first sub-pixel having sub-pixel blocks, the first electrodes 221 of the light-emitting elements 220 within the sub-pixel blocks are connected via the transparent electrode layer 2212, and the orthographic projection of the light transmission aperture 201 onto the substrate 100 is located inside the orthographic projection of the transparent electrode layer 2212 onto the substrate 100. With this design, the arrangement of the separation aperture 202 does not increase the difficulty of the manufacturing process of the display substrate and does not affect the arrangement of the circuits within the substrate 100.
[0125] For example, the first electrode 221 may be an anode, and the second electrode 222 may be a cathode. The main body material of the anode is a high work function material such as ITO or IGO, and the light transmittance of this material is high. In actual applications, since the design of the light-emitting element 220 is in the top emission mode, a reflective layer is provided on the anode, and the light rays excited by the light-emitting functional layer 223 are reflected to the side away from the anode. To ensure the conductivity of the anode, a highly reflective and conductive material such as metal is used for the reflective layer.
[0126] In some other embodiments of the present disclosure, the first electrode 221 shown in FIGS. 15 and 16 can be modified. In the first subpixel, the light-emitting elements 220 corresponding to two adjacent subpixel blocks share the first electrode 221. For example, at the position where the light-transmitting opening 201 is located, a via hole overlapping the light-transmitting opening 201 can be arranged on the first electrode 221 so as not to block the light rays incident on the light-transmitting opening 201. In this case, the orthographic projection of the light-transmitting opening 201 on the substrate can be superimposed on the orthographic projection of the via hole of the first electrode 221 on the substrate, or the orthographic projection of the light-transmitting opening 201 on the substrate can be located within the orthographic projection of the via hole of the first electrode 221 on the substrate.
[0127] In at least one embodiment of the present disclosure, as shown in FIG. 17, the display panel may further include a first encapsulation layer 310, and the first encapsulation layer 310 covers at least the light-emitting element 220 to protect the film layer of the light-emitting element 220 during the manufacturing process of the display panel. Note that the light-emitting elements 220 with different emission light colors are independently manufactured, but the film layers (such as the vapor deposition film layers of the light-emitting functional layer 223) of each light-emitting element 220 are vapor deposited on the entire surface of the display panel during vapor deposition. For example, the light-emitting elements 220 are classified into light-emitting elements that emit red light (R), green light (G), and blue light (B) respectively. In the manufacturing process, the light-emitting elements R, G, and B are manufactured sequentially. When manufacturing the light-emitting element R, the light-emitting element R is formed in each separation aperture 202, and a first encapsulation layer 310 for covering the light-emitting element G is manufactured on the display panel. Next, the first encapsulation layer 310 of the separation aperture 202 (used for forming the light-emitting elements G and B in the final product) and the cathode and the light-emitting functional layer 223 of the light-emitting element R are removed (the remaining portion of the first encapsulation layer 310 is an encapsulation unit that covers the light-emitting element). In this process, the first encapsulation layer 310 is used to protect the light-emitting element R in other separation apertures, and the light-emitting elements G and B are manufactured sequentially based on this method. Finally, the first encapsulation layer 310 as shown in FIG. 5 is formed. Correspondingly, the first encapsulation layer 310 is composed of encapsulation units that cover each light-emitting element 220 respectively. Note that in the above manufacturing process, in order to further increase the light transmittance of the first display region, the first encapsulation layer 310 in the light transmission aperture 201 can be removed.
[0128] In at least one embodiment of the present disclosure, referring to FIG. 5 again, the display panel may further include a second encapsulation layer 320 and a third encapsulation layer 330 that cover the first encapsulation layer 310. The second encapsulation layer 320 is located between the first encapsulation layer 310 and the third encapsulation layer 330. The first encapsulation layer 310 and the third encapsulation layer 330 are inorganic layers, and the inorganic layers have high density to separate moisture and oxygen. The second encapsulation layer 320 is an organic layer and has a large thickness to flatten the surface of the display panel.
[0129] For example, as shown in FIG. 17, the display panel can further include structures such as an optical film sheet 500 and a cover plate 600, and such structures can be located on one side away from the display substrate of the touch structure.
[0130] Hereinafter, with reference to FIGS. 18A, 18B, 19A, 19B, 20A, 20B, 21A, 21B, and 22, the manufacturing process of the display panel shown in FIGS. 5 and 6 will be described, and the principle by which the pixel arrangement density PPI increases due to the separation structure will be intuitively explained. Here, FIGS. 18A, 19A, 20A, and 21A correspond to the manufacturing process of the display panel shown in FIG. 5, and FIGS. 18B, 19B, 20B, 21B, and 22 correspond to the manufacturing process of the display panel shown in FIG. 6.
[0131] As shown in FIGS. 18A and 18B, a substrate 100 is provided, and a first electrode 221 arranged in an array is formed on the substrate 100. An insulating material film layer (for example, an inorganic material film layer) is deposited on the substrate 100 on which the first electrode is formed. A support portion 211 and a crown portion 212 are formed on the display panel. Here, a light transmission opening 201 and a separation opening 202 are formed. The insulating material film layer is patterned to form a pixel definition layer 213 (the planar shape is grid-like). The pixel definition layer 213 includes a third via hole and covers the gap between adjacent first electrodes. In this way, the planar shape of the pixel definition layer 213 is grid-like.
[0132] In an embodiment of the present disclosure, the patterning process is a photolithography patterning process. For example, it can include coating a photoresist on a structural layer that needs to be patterned, exposing the photoresist using a mask plate, developing the exposed photoresist to obtain a photoresist pattern, etching (optionally wet etching or dry etching) the structural layer using the photoresist pattern, and then optionally removing the photoresist pattern. In addition, when the material of the structural layer (for example, the following photoresist pattern 700) includes a photoresist, the structural layer can be directly exposed through a mask plate to form a required pattern.
[0133] As shown in FIGS. 19A and 19B, a light-emitting functional layer and a second electrode are deposited on a substrate 100 to form a light-emitting element 220 in each light-transmitting opening 201 of a separation structure 210. Since no mask plate is used for the deposition in this process, the deposited material is also deposited on the crown portion 212 and is also deposited in the light-transmitting opening 201 and the separation opening 202. For example, the deposited light-emitting functional layer can emit red light (G), that is, at this stage, a light-emitting element 220 that emits red light is formed in each of the light-transmitting opening 201 and the separation opening 202 of the separation structure 210.
[0134] As shown in FIGS. 20A and 20B, a first encapsulation layer 310 is deposited and formed to cover the light-emitting element 220. The first encapsulation layer 310 will cover the entire display area at this stage. A photoresist is formed on the first encapsulation layer 310 (for example, by coating, etc.), and then patterned to form a photoresist pattern 700. The photoresist pattern 700 covers only a part of the separation opening 202 of the separation structure 210 (the separation opening 202 where the light-emitting element G of the display panel product is located).
[0135] As shown in FIGS. 21A and 21B, using the photoresist pattern 700 as a mask, the surface of the display panel is etched to remove the first sealing layer 310, the second electrode, and the light-emitting functional layer covered by the photoresist pattern 700, and then the remaining photoresist pattern 700 is removed.
[0136] As shown in FIG. 22, by repeating the above steps, light-emitting elements 220 that emit green light and blue light are respectively formed in other separation openings 202.
[0137] After all the light-emitting elements 220 are manufactured, a second sealing layer 320 and a third sealing layer 330 are respectively formed on the first sealing layer 310.
[0138] Referring again to FIGS. 5 and 6, a touch electrode 400 is manufactured on the third sealing layer 330.
[0139] Note that the manufacturing order of the light-emitting elements 220 that emit red light, green light, and blue light can be designed according to actual needs, and the embodiments of the present disclosure do not limit this.
[0140] Note that in some embodiments of the present disclosure, some film layers of the light-emitting functional layer such as the light-emitting layer can be manufactured using a non-vapor deposition method such as inkjet printing, and specifically, it can be selected according to the material of the film layer. For example, when the film layer is a polymer material and not suitable for vapor deposition, it can be manufactured using inkjet printing.
[0141] Note that in the embodiments of the present disclosure, the designed area of the first display area is not limited and can be designed according to the actual process requirements and the application scenario of the display panel.
[0142] For example, in some embodiments of the present disclosure, the entire display area can be designed as the first display area 13. With this design, the display panel can be used in scenarios such as transparent display.
[0143] For example, in some other embodiments of the present disclosure, referring to FIG. 1 again, the display area further includes a second display area (an area inside the display area 11 and outside the first display area 13), the second display area is located on at least one side of the first display area 13, the first display area 13 is a light-transmitting area, and the second display area is a non-light-transmitting area. With this design, the display panel can be used in scenes such as fingerprint identification or under-display photography.
[0144] In at least one embodiment of the present disclosure, the first sub-pixel includes sub-pixels of a first color, sub-pixels of a second color, and sub-pixels of a third color that are spaced apart from each other and have different colors, and the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are arranged adjacent to each other. For example, optionally, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color sequentially emit red light, green light, and blue light. For example, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel R, sub-pixel G, and sub-pixel B, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel R, sub-pixel B, and sub-pixel G, and the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel G, sub-pixel R, and sub-pixel B, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel G, sub-pixel B, and sub-pixel R, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel B, sub-pixel G, and sub-pixel R, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially sub-pixel B, sub-pixel R, and sub-pixel G. In this specification, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color being sequentially sub-pixel R, sub-pixel G, and sub-pixel B will be described as an example. As shown in FIG. 23, in at least one embodiment of the present disclosure, the sub-pixels G of the second color (for example, sub-pixel blocks G1, G2) are located on one side of the sub-pixels R of the first color (for example, sub-pixel blocks R1, R2) in a second direction, and the sub-pixels B of the third color (for example, sub-pixel blocks B1, B2) are located on one side of the sub-pixels of the first color in a first direction, and the first direction and the second direction intersect. That is, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are peripherally arranged. For example, optionally, the sub-pixels of the first color and the sub-pixels of the second color are located on one side of the sub-pixels of the third color in the second direction.Here, the first direction is parallel to the X-axis, and the second direction is parallel to the Y-axis.
[0145] In at least one embodiment of the present disclosure, in the first direction, the sub-pixel R of the first color and the sub-pixel G of the second color have the same length, and both sides are flush with each other, forming a rectangular structure. The sub-pixel of the first color and the sub-pixel of the second color have the same length in the first direction, so that the light-emitting sizes of the sub-pixel of the first color and the sub-pixel of the second color are similar in the first direction, having a good light-emitting effect. Also, both sides of the sub-pixel of the first color and the sub-pixel of the second color in the first direction are flush with each other, forming a single rectangular structure, enabling the sub-pixel of the first color and the sub-pixel of the second color to be aligned, and improving the display uniformity. The sub-pixel of the first color and the sub-pixel of the second color form a single rectangular structure, that is, the outer contour of the sub-pixel of the first color and the outer contour of the sub-pixel of the second color can be extended and connected to form a single rectangular structure, with a relatively aligned arrangement, further improving the display effect of the display panel.
[0146] Optionally, in the first direction, the sub-pixel R of the first color, the sub-pixel G of the second color, and the sub-pixel B of the third color have the same length, and the light-emitting sizes of the sub-pixel of the first color, the sub-pixel of the second color, and the sub-pixel of the third color are similar in the first direction, further improving the light-emitting effect of the display panel.
[0147] Optionally, in the second direction, the sub-pixel R of the first color and the sub-pixel G of the second color have the same length, and the light-emitting sizes of the sub-pixel of the first color and the sub-pixel of the second color are similar in the second direction, further improving the light-emitting effect of the display panel.
[0148] As shown in FIG. 24, in at least one embodiment of the present disclosure, the sub-pixels R of the first color (e.g., sub-pixel blocks R1, R2), the sub-pixels G of the second color (e.g., sub-pixel blocks G1, G2), and the sub-pixels B of the third color (e.g., sub-pixel blocks B1, B2) are long strips, and are sequentially arranged at intervals in the first direction. The arrangement form is simple, which reduces the difficulty of manufacturing and facilitates the manufacture of the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color. Further, the arrangement form is relatively regular and can improve the display uniformity of the display panel.
[0149] In at least one embodiment of the present disclosure, in a second direction intersecting the first direction, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color have the same length, and both side edges are flush with each other, forming a rectangular structure. Thereby, the light-emitting sizes of the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color in the second direction are similar, further improving the display effect of the display panel. The sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color form a rectangular structure, that is, the outer contours of the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color can be extended and connected to form a connected rectangular structure. The arrangement is relatively aligned, further improving the display effect of the display panel.
[0150] As shown in FIG. 25, in at least one embodiment of the present disclosure, the first sub-pixel includes at least three sub-pixel blocks (e.g., pixel blocks G1, G2, G3). The plurality of sub-pixel blocks are peripherally arranged, that is, the plurality of sub-pixels are arranged crosswise rather than in the same direction, and the plurality of sub-pixel blocks are arranged around a center in a plurality around the center. For example, optionally, in the first sub-pixel, on one side of the first direction and the second direction of the same sub-pixel block, there is at least one sub-pixel block.
[0151] As shown in FIGS. 22 and 23, in at least one embodiment of the present disclosure, the separation structure 210 extends along a first direction and a second direction (it can be considered that the gray-filled portion in FIG. 25 is the separation structure 210), and the first sub-pixel is separated by the separation structure 210 to form a sub-pixel block adjacent in the first direction and / or a sub-pixel block adjacent in the second direction. By arranging the separation structure 210 and forming a separation opening 202 corresponding to each sub-pixel block, when manufacturing the sub-pixel block, the light-emitting functional layer 223 of each sub-pixel block is partitioned by the separation structure 210 and deposited in each separation opening 202, thereby forming sub-pixel blocks separated from each other in the first direction and the second direction. The separation structure 210 is arranged such that the partitioning effect between the sub-pixel blocks is good and the mutual influence between the sub-pixel blocks is reduced. If a dark spot problem occurs in one of the sub-pixel blocks, the other sub-pixel blocks continue to emit light normally, thereby ensuring the normal light emission of the display panel. That is, the first sub-pixel is partitioned into a plurality of sub-pixel blocks by the separation structure 210, and the influence on the display effect of the display panel caused by a single dark spot defect can be improved. For example, when a dark spot problem occurs in the pixel block R1 in FIG. 25, the pixel blocks R2, R3, and R4 maintain normal light emission, thereby ensuring the normal light emission of the sub-pixels of the first color.
[0152] As shown in FIGS. 24 and 25, in at least one embodiment of the present disclosure, the sub-pixels of the first color include a sub-pixel blocks, the sub-pixels of the second color include b sub-pixel blocks, and the sub-pixels of the third color include c sub-pixel blocks, where a, b, and c satisfy a≥b≥c. As shown in FIG. 24, when the sub-pixels of the first color, the second color, and the third color are all divided into a plurality of sub-pixel blocks, the number of sub-pixels of the sub-pixels of the first color, the second color, and the third color is equal, and the number distribution is regular, improving the display uniformity of the display panel, and the arrangement of the separation structure 210 is relatively regular, so the difficulty of manufacturing the separation structure 210 is reduced. As shown in FIG. 25, when a>b, that is, the number of sub-pixel blocks of the sub-pixels of the first color (for example, sub-pixel blocks R1, R2, R3, R4) is larger than the number of sub-pixel blocks of the sub-pixels of the second color (for example, sub-pixel blocks G1, G2, G3), for example, the sub-pixels of the first color include four sub-pixel blocks, the sub-pixels of the second color include three sub-pixel blocks, and the sub-pixels of the third color include two sub-pixel blocks. The number of sub-pixel blocks of the sub-pixels of the first color is larger, and the area of a single sub-pixel block is smaller. If a dark spot problem occurs in at least one of the single sub-pixel blocks, the other sub-pixel blocks emit light normally, and the other sub-pixel blocks have a larger light-emitting area, that is, the sub-pixels of the first color have a larger aperture ratio, thereby improving the influence of a single dark spot on the display effect of the display panel.When the manufacturing order of the sub-pixels of the first color is after the deposition order of the sub-pixels of the second color, there is a high possibility that the problem of dark spots will occur in the sub-pixels of the first color. Therefore, the sub-pixels of the first color are divided into more sub-pixel blocks, and the influence of the problem of dark spots on the display effect can be further improved. That is, the first sub-pixels with a later manufacturing order are divided into more sub-pixel blocks, thereby realizing the balance of the influence of dark spots on the first sub-pixels of each color and ensuring the display effect of the entire display panel. The structures and effects of the sub-pixels of the second color and the sub-pixels of the third color are the same as those of the sub-pixels of the first color and the sub-pixels of the second color, and the description will not be repeated here.
[0153] In at least one embodiment of the present disclosure, the first sub-pixel includes two sub-pixel blocks (sub-pixel blocks B1 and B2 in FIG. 25), and the two sub-pixel blocks are arranged at intervals along the first direction. The first sub-pixel is divided into sub-pixel blocks arranged at intervals to improve the light-emitting influence of a single dark spot on the entire first sub-pixel. For example, optionally, in the second direction, the two sub-pixel blocks have the same length, and both sides are flush with each other, forming a rectangular structure. In the second direction, the light-emitting sizes of the two sub-pixel blocks are similar, further improving the light-emitting effect of the first sub-pixel. The two sub-pixel blocks form a rectangular structure, that is, the outer contours of the two sub-pixel blocks can be extended and connected to form a single rectangular structure, and the arrangement is relatively aligned, further improving the light-emitting effect of the first sub-pixel.
[0154] In at least one embodiment of the present disclosure, the first sub-pixel includes a first sub-pixel block, a second sub-pixel block, and a third sub-pixel block. For example, the sub-pixel block G1 in FIG. 25 is the first sub-pixel block, the sub-pixel block G2 is the second sub-pixel block, and the sub-pixel block G3 is the third sub-pixel block. The first sub-pixel block and the second sub-pixel block are located on one side of the third sub-pixel block in a first direction, and the first sub-pixel block and the second sub-pixel block are provided at intervals in a second direction. That is, the first sub-pixel includes three sub-pixel blocks, and the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block are not arranged in the same direction but are arranged crosswise, and the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block are arranged around a center and a plurality of them are arranged around the center.
[0155] Optionally, in the first direction, the first sub-pixel block and the second sub-pixel block have the same length, and both side edges are flush with each other, forming a rectangular structure, whereby the light-emitting sizes of the first sub-pixel block and the second sub-pixel block in the first direction are similar, further improving the light-emitting effect of the first sub-pixel. The first sub-pixel block and the second sub-pixel block form a rectangular structure, that is, the outer contours of the first sub-pixel block and the second sub-pixel block can be extended and connected to form a connected rectangular structure, and the arrangement is relatively aligned, further improving the light-emitting effect of the first sub-pixel.
[0156] Optionally, in the first direction, the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block have the same length, so that the light-emitting sizes of the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block in the first direction are similar, further improving the light-emitting effect of the first sub-pixel.
[0157] Optionally, in the second direction, the side of the first sub-pixel block away from the second sub-pixel block is flush with one side of the third sub-pixel block, the arrangement is relatively aligned, and the light-emitting effect of the first sub-pixel is further improved.
[0158] Optionally, in the second direction, the side of the second sub-pixel block away from the first sub-pixel block is flush with one side of the third sub-pixel block, the arrangement is relatively aligned, and the light-emitting effect of the first sub-pixel is further improved.
[0159] In at least one embodiment of the present disclosure, the first sub-pixel includes four sub-pixel blocks (for example, the sub-pixel blocks R1, R2, R3, and R4 in FIG. 25), and the four sub-pixel blocks are peripherally arranged, that is, the four sub-pixel blocks are not arranged in the same direction but are arranged crosswise, and the four sub-pixel blocks are arranged around one center and a plurality of them are arranged around the center. For example, on one side of one sub-pixel block in the first direction and the second direction, each has one sub-pixel block, and the four sub-pixel blocks are arranged in an array in the first direction and the second direction.
[0160] Optionally, in the first direction and / or the second direction, at least two adjacent sub-pixel blocks have the same length, and both sides are flush with each other, forming a rectangular structure, whereby the light-emitting sizes of the sub-pixel blocks in the first direction and the second direction are similar, and the light-emitting effect of the first sub-pixel is further improved. The first sub-pixel block and the second sub-pixel block form a rectangular structure, that is, the outer contours of the first sub-pixel block and the second sub-pixel block can be extended and connected to form a connection with a rectangular structure, the arrangement is relatively aligned, and the light-emitting effect of the first sub-pixel is further improved.
[0161] In at least one embodiment of the present disclosure, in the first subpixel, since the sizes of the orthographic projections of at least two subpixel blocks onto the substrate 100 are the same, the light-emitting sizes of the subpixel blocks within the first subpixel are similar, further improving the light-emitting effect of the first subpixel. That the sizes of the orthographic projections of two subpixel blocks onto the substrate 100 are the same means that the shapes of the two subpixel blocks and their sizes in the first direction and the second direction are all the same. For example, the orthographic projection of one subpixel block onto the substrate 100 can be obtained by performing a parallel translation or rotation on the orthographic projection of another subpixel block onto the substrate 100.
[0162] Optionally, the first subpixel includes 2n subpixel blocks, where n is a positive integer, and the sizes of the orthographic projections of each subpixel block onto the substrate 100 are the same. That is, the first subpixel is divided into an even number of subpixel blocks, and the light-emitting sizes of the subpixel blocks are similar, further improving the light-emitting effect of the first subpixel.
[0163] Optionally, the sizes of the orthographic projections of at least one subpixel block of the subpixel of the first color and one subpixel block of the subpixel of the second color onto the substrate 100 are the same, and the light-emitting sizes of the subpixel blocks within the subpixel of the first color and the subpixel blocks within the subpixel of the second color are similar, improving the light-emitting uniformity of the subpixel of the first color and the subpixel of the second color.
[0164] In at least one embodiment of the present disclosure, the orthographic projection of the first sub-pixel onto the substrate 100 is a polygon, the polygon has a plurality of corner regions, at least one corner region is provided with a sub-pixel block. For example, the orthographic projection of the first sub-pixel onto the substrate 100 is a rectangle, the rectangle has four corner regions, and at least one sub-pixel block is located within one corner region. Optionally, the first sub-pixel includes three sub-pixel blocks, where two sub-pixel blocks are respectively located within two corner regions, and another sub-pixel block is provided across the other two corner regions. Optionally, the first sub-pixel includes four sub-pixel blocks, the four sub-pixel blocks are respectively located within the four corner regions. By locating the sub-pixel block within the corner region, the light-emitting effect of the first sub-pixel can be improved, thereby improving the display effect of the display panel.
[0165] As shown in FIGS. 25 and 26, optionally, the edge of the orthographic projection of the sub-pixel block onto the substrate 100 includes a straight edge and / or a curved edge. For example, as shown in FIG. 25, the edges of the orthographic projection of the sub-pixel block onto the substrate 100 are all straight edges, or the edges of the orthographic projection of the sub-pixel block onto the substrate 100 are all curved edges, or as shown in FIG. 26, the edges of the orthographic projection of the sub-pixel block onto the substrate 100 are a combination of a straight edge and a curved edge.
[0166] Optionally, at least two straight edges form a right angle perpendicular to each other. Since the sub-pixel block has a right angle, the outer contour of the first sub-pixel has a right angle. The first sub-pixel having a right angle has low manufacturing difficulty and a good light-emitting effect.
[0167] As shown in FIG. 26, optionally, in at least two adjacent sub-pixel blocks, by arranging the right angles of the two sub-pixel blocks to be spaced apart from each other, the right angles of all the sub-pixel blocks are located on the outer contour, that is, the outer contour of the first sub-pixel has a right angle, so that the first sub-pixel has low manufacturing difficulty and a good light-emitting effect.
[0168] As shown in FIG. 27, at least one embodiment of the present disclosure provides a display panel. The display panel includes a first display area. The first display area includes a plurality of first sub-pixels arranged in an array in a first direction. The first sub-pixels include at least two spaced-apart sub-pixel blocks. The display panel further includes a pixel definition layer 213. The pixel definition layer 213 is located on one side of the substrate 100 and includes a plurality of pixel apertures 203. The light-emitting elements 220 of the sub-pixel blocks are located within the pixel apertures 203. In the first sub-pixel, at least two adjacent sub-pixel blocks exist, and the two adjacent sub-pixel blocks are separated by the pixel definition layer 213. In the display panel, by dividing the first sub-pixel into a plurality of sub-pixel blocks, only a specific sub-pixel block will have a light-emitting failure due to debris, and the first sub-pixel itself can still emit light. Therefore, it reduces the risk that harmful substances such as debris enter the sub-pixel and cause the display function of the display panel to deteriorate. Also, since the first sub-pixel is divided by the pixel definition layer 213 to form a plurality of spaced-apart sub-pixel blocks, there is no need to provide a separation structure 210, and the manufacturing process is simplified.
[0169] Continuing to refer to FIG. 3, in at least one embodiment of the present disclosure, the display panel further includes a separation structure 210, the separation structure 210 is located on one side away from the substrate of the pixel definition layer 213, and partitions a plurality of separation openings 202. The light-emitting elements 220 of the sub-pixel blocks are respectively positioned and restricted within the separation openings 202. The pixel openings 203 respectively correspond to the separation openings 202, and the pixel openings 203 communicate with the corresponding separation openings 202.
[0170] In at least one embodiment of the present disclosure, in the first sub-pixel, at least two sub-pixel blocks are adjacent, and the two adjacent sub-pixel blocks are separated by the separation structure 210. The pixel definition layer 213 and the separation structure 210 are used in combination to partition the first sub-pixel, improve the separation effect of the first sub-pixel, and make it difficult for adjacent sub-pixel blocks to affect each other.
[0171] Continuing to refer to FIG. 7, in at least one embodiment of the present disclosure, in the first sub-pixel, the orthographic projection of the pixel openings 203 corresponding to at least two sub-pixel blocks onto the substrate 100 is located within the orthographic projection of the same separation opening 202 onto the substrate 100. The pixel openings 203 corresponding to the sub-pixel blocks are the pixel openings 203 where the light-emitting elements 220 of the sub-pixel blocks are located. By partitioning the entire first sub-pixel through the separation structure 210, the light-emitting functional layers 223 of each sub-pixel block within the first sub-pixel are located within the same separation opening 202. That is, between each sub-pixel block within the first sub-pixel, it is only necessary to be separated from each other by the pixel definition layer 213 without the need to provide the separation structure 210, reducing the overall manufacturing difficulty of the separation structure 210. Also, the emission colors of the sub-pixel blocks within the same first sub-pixel are the same, and no color mixing problem due to carrier crosstalk occurs between the light-emitting functional layers 223 of each sub-pixel block. Therefore, even if the separation structure 210 is not provided between each sub-pixel block within the same first sub-pixel, the light-emitting effect of the first sub-pixel can be ensured.
[0172] Continuing to refer to FIG. 3, in at least one embodiment of the present disclosure, the orthographic projection of the pixel aperture 203 corresponding to each sub-pixel block onto the substrate 100 is located within the orthographic projection of each separation aperture 202 onto the substrate 100. Between each sub-pixel block, they are all separated by a separation structure 210. The separation structure 210 is directly used to separate between each sub-pixel block, eliminating the need to use another mask plate to manufacture each sub-pixel block, thereby reducing costs. Also, the separation structure 210 has a better partitioning effect, and the light-emitting functional layers 223 of each sub-pixel block can be insulated from each other while being spaced apart without affecting each other. The first sub-pixel is divided into a plurality of independent sub-pixel blocks. When at least one of the sub-pixel blocks is damaged and a dark spot problem occurs, the other sub-pixel blocks can continue to maintain normal light emission, thereby ensuring the normal light emission of the display panel. That is, the first sub-pixel is divided into a plurality of sub-pixel blocks, and the influence of a single dark spot defect on the display effect of the display panel can be improved.
[0173] At least one embodiment of the present disclosure can provide a display device including the display panel of the above embodiment. Further, when the first display area is an identification area, the display device can include a photosensitive element, and the orthographic projection of the photosensitive element onto the substrate at least partially overlaps the first display area.
[0174] For example, in some embodiments of the present disclosure, the photosensitive element may include at least one fingerprint identification sensor. For example, the fingerprint identification sensor can be provided on one side away from the display functional layer of the substrate, or the fingerprint identification sensor can also be provided within the substrate.
[0175] For example, in some other embodiments of the present disclosure, the photosensitive element may be a camera, and the camera is located on one side away from the display functional layer of the substrate.
[0176] For example, in the embodiments of the present disclosure, the display device may be a product or component having a display function such as a television, a digital camera, a mobile phone, a clock, a tablet computer, a laptop computer, a navigator, etc.
[0177] As shown in FIG. 28, referring to FIGS. 1 to 27, at least one embodiment of the present disclosure provides a method for manufacturing a display panel. The display panel includes a first display area, and the first display area includes a plurality of first sub-pixels arranged in an array in a first direction. The first sub-pixel includes at least two sub-pixel blocks. The manufacturing method includes the following steps.
[0178] Step S01: A first electrode and a pixel definition layer are sequentially manufactured on a substrate. The pixel definition layer includes a plurality of pixel openings. The pixel openings position the light-emitting elements and expose the first electrode.
[0179] Step S02: A separation structure is manufactured on one side of the pixel definition layer away from the substrate. The separation structure defines a plurality of separation openings. The pixel openings and the separation openings correspond to and communicate with each other.
[0180] Step S03: A light-emitting functional layer and a second electrode are sequentially manufactured on one side of the separation structure away from the substrate. The first electrode, the light-emitting functional layer, and the second electrode sequentially stacked on the substrate form the light-emitting elements of the sub-pixel blocks.
[0181] Here, in the first sub-pixel, at least two sub-pixel blocks are adjacent to each other, and the two adjacent sub-pixel blocks are separated by a separation structure.
[0182] In these embodiments, the first electrode 221 and the pixel definition layer 213 are manufactured by step S01. The isolation structure 210 is manufactured by step S02. The light-emitting functional layer 223 and the second electrode 222 are manufactured by step S03, and the first electrode 221, the light-emitting functional layer 223, and the second electrode 222 form the light-emitting element 220 of the sub-pixel block. Between each sub-pixel block, all are separated by the isolation structure 210. The isolation structure 210 is directly used to divide between each sub-pixel block, and there is no need to use other mask plates to manufacture each sub-pixel block, thereby reducing costs. Also, the isolation structure 210 has a better partitioning effect, and the light-emitting functional layers 223 of each sub-pixel block can be separated and insulated from each other without affecting each other. The first sub-pixel is divided into a plurality of independent sub-pixel blocks. When at least one of the sub-pixel blocks is damaged and a dark spot problem occurs, the other sub-pixel blocks can continue to emit light normally, thereby ensuring the normal light emission of the display panel. That is, the first sub-pixel is divided into a plurality of sub-pixel blocks, and the influence of a single dark spot defect on the display panel can be improved.
[0183] In at least one embodiment of the present disclosure, the first display area further includes a plurality of sub-pixels of a second color and a plurality of sub-pixels of a third color arranged in an array in a first direction. The adjacent sub-pixels of the first color, the second color, and the third color constitute one pixel. The manufacturing method further includes the following steps: manufacturing the light-emitting element 220 of the sub-pixel of the first color on the substrate 100. The sub-pixel of the first color includes a sub-pixel blocks. Manufacturing the light-emitting element 220 of the sub-pixel of the second color on the substrate 100. The sub-pixel of the second color includes b sub-pixel blocks. Here, a and b satisfy a > b.
[0184] In these embodiments, when the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are all divided into a plurality of sub-pixel blocks, the number of sub-pixels of the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are equal, the number distribution is regular, the display uniformity of the display panel is improved, and the arrangement of the separation structure 210 is relatively regular, and the difficulty of manufacturing the separation structure 210 is reduced. When a > b, that is, the number of sub-pixel blocks of the sub-pixels of the first color is more than the number of sub-pixel blocks of the sub-pixels of the second color. For example, the sub-pixels of the first color include four sub-pixel blocks, the sub-pixels of the second color include three sub-pixel blocks, and the sub-pixels of the third color include two sub-pixel blocks. The larger the number of sub-pixel blocks of the sub-pixels of the first color, the smaller the area of a single sub-pixel block. If a dark spot problem occurs in at least one single sub-pixel block among them, the other sub-pixel blocks emit light normally, and the other sub-pixel blocks have a larger light-emitting area. That is, the sub-pixels of the first color have a larger aperture ratio, thereby improving the influence of a single dark spot on the display effect of the display panel. When the manufacturing order of the sub-pixels of the first color is after the deposition order of the sub-pixels of the second color, the possibility of a dark spot problem occurring in the sub-pixels of the first color is increased. Therefore, the sub-pixels of the first color can be further divided into a larger number of sub-pixel blocks to further improve the influence of the dark spot problem on the display effect. That is, the later the manufacturing order, the more the first sub-pixels are divided into sub-pixel blocks, thereby balancing the influence of the dark spots of the first sub-pixels of each color and ensuring the display effect of the entire display panel.
[0185] In at least one embodiment of the present disclosure, after the step of manufacturing the light-emitting element 220 of the sub-pixels of the second color on the substrate 100, the manufacturing method further includes the following steps of manufacturing the light-emitting element 220 of the sub-pixels of the third color on the substrate 100. The sub-pixels of the third color include c sub-pixel blocks, where b and c satisfy b > c.
[0186] In these embodiments, the structures and effects of the sub-pixels of the second color and the sub-pixels of the third color are the same as the structures and effects of the sub-pixels of the first color and the sub-pixels of the second color. Here, the description will not be repeated. For example, the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel R, the sub-pixel G, and the sub-pixel B, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel R, the sub-pixel B, and the sub-pixel G, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel G, the sub-pixel R, and the sub-pixel B, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel G, the sub-pixel B, and the sub-pixel R, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel B, the sub-pixel G, and the sub-pixel R, or the sub-pixels of the first color, the sub-pixels of the second color, and the sub-pixels of the third color are sequentially the sub-pixel B, the sub-pixel R, and the sub-pixel G.
[0187] The above are only the preferred embodiments of this specification and are not intended to limit this specification. All modifications, equivalent substitutions, etc. made within the spirit and principle of this specification shall be included in the protection scope of this specification.
Claims
1. A display panel, a display substrate having a first display area, wherein the first display area includes a number of first sub-pixels arranged in an array in a first direction, the first sub-pixels including at least two sub-pixel blocks; In the first subpixel, at least two adjacent subpixel blocks are present, and the adjacent two subpixel blocks are spaced apart by an isolation structure; In a second direction, the display substrate includes a substrate and a display function layer disposed on the substrate, the display function layer includes a plurality of light-emitting elements, each of the sub-pixel blocks is provided with one of the light-emitting elements, the light-emitting elements include a first electrode, a light-emitting function layer and a second electrode sequentially stacked on the substrate, and in the same first sub-pixel, the first electrodes respectively corresponding to the adjacent sub-pixel blocks are electrically connected to each other; the separation structure is located on the substrate and defines a plurality of separation openings, and the light emitting elements are positioned within the separation openings, respectively; A display panel characterized by:
2. The separation structure includes a support and a crown, which are sequentially stacked on the substrate, and an orthogonal projection of the support onto the substrate is located within an orthogonal projection of the crown onto the substrate, the support is a conductive structure, the second electrode of the light-emitting element is located within the corresponding separation opening and is connected to the support, the support and the crown are integrally molded, or the materials of the support and the crown are different, or or, the orthogonal projection of the first sub-pixel onto the substrate is a polygon, the polygon having a plurality of corner regions, at least one of the corner regions being provided with the sub-pixel block; or the edges of the orthogonal projection of the sub-pixel blocks onto the substrate include straight and / or curved edges, or the separating structure extends continuously between two adjacent sub-pixel blocks to form a mesh-like structure, so that light rays between the two adjacent sub-pixel blocks are blocked by the separating structure; or In the first display region, the separation structure further defines a plurality of light-transmitting apertures, the light-transmitting apertures being located between the sub-pixel blocks of the first sub-pixels; or In the first display region, the separation structure further defines a plurality of light-transmitting apertures, the light-transmitting apertures being located between the subpixel blocks of the first subpixels, and the display panel further includes a second display region, and a light transmittance of the first display region is greater than a light transmittance of the second display region.
2. The display panel according to claim 1 .
3. the isolation structure includes a support and a crown sequentially stacked on the substrate, an orthogonal projection of the support onto the substrate is located within an orthogonal projection of the crown onto the substrate, the support is a conductive structure, the second electrode of the light emitting element is located within a corresponding isolation opening and is connected to the support; the display substrate further includes a pixel definition layer located on one side of the isolation structure close to the substrate and including a plurality of pixel openings respectively corresponding to the isolation openings; wherein the pixel openings position the light emitting elements and expose the first electrodes, the pixel openings correspond to the separation openings, and the pixel openings are connected to the corresponding separation openings.
2. The display panel according to claim 1 .
4. In the first sub-pixel, the orthogonal projections of the pixel apertures corresponding to at least two of the sub-pixel blocks are located within the orthogonal projections of the same separating aperture onto the substrate; or or an orthogonal projection onto the substrate of the pixel aperture corresponding to each of the sub-pixel blocks lies within an orthogonal projection onto the substrate of each of the separation apertures; or an orthogonal projection of a gap between two adjacent first electrodes onto the substrate is located within an orthogonal projection of the support onto the substrate, such that an edge of the first electrode overlaps an edge of the support to form a capacitor, and the pixel definition layer covers the edge of the first electrode to separate the support from the first electrode; 4. The display panel according to claim 3.
5. In the first display region, the separation structure further defines a plurality of light-transmitting apertures, the light-transmitting apertures being located between the sub-pixel blocks of the first sub-pixels; The display panel further includes a touch structure, where the touch structure is located on a light-emitting side of the display substrate and includes a touch electrode, the touch electrode has a lattice structure, and orthogonal projections of lattice lines of the touch electrode onto the display substrate are located in gaps between adjacent first sub-pixels.
2. The display panel according to claim 1 .
6. an orthogonal projection of the first electrode onto the substrate is located outside an orthogonal projection of the light-transmitting opening onto the substrate, the substrate is provided with a conductive line, and in the first subpixel, the first electrodes of the light-emitting elements corresponding to two adjacent subpixel blocks are connected to each other via the conductive line; or In the first subpixel, the light-emitting elements corresponding to two adjacent subpixel blocks share a first electrode; or the first electrode includes a reflective electrode layer and a transparent electrode layer stacked on the substrate, the reflective electrode layer is located between the transparent electrode layers, in the first subpixel, the first electrodes of the light-emitting elements in the subpixel block are connected via the transparent electrode layer, and the orthogonal projection of the light-transmitting aperture onto the substrate is located within the orthogonal projection of the transparent electrode layer onto the substrate; or The emission color of the first sub-pixel is selected from at least one of red, green, and blue, where: the first subpixel is a first-color subpixel emitting light of one color, the first display area further includes a number of second-color subpixels and a number of third-color subpixels arranged in an array in the first direction, the first-color subpixel, the second-color subpixel, and the third-color subpixel adjacent to each other constitute one pixel, in each pixel, the first-color subpixel is located between the second-color subpixel and the third-color subpixel, the second-color subpixel and the third-color subpixel are all continuous structures, along the direction from the second-color subpixel to the third-color subpixel, a width of the first subpixel is equal to a width of the light-transmitting aperture, and wavelengths of light emitted by the second-color subpixel, the first-color subpixel, and the third-color subpixel sequentially decrease; or the first subpixels are classified into first-color subpixels and second-color subpixels, each of which emits at least two kinds of color light beams, and the first display area further includes a number of third-color subpixels arranged in an array in the first direction, and adjacent first-color subpixels, second-color subpixels, and third-color subpixels constitute one pixel, and in each pixel, the second-color subpixel is located between the first-color subpixel and the third-color subpixel, and the third-color subpixel has a continuous structure, and in each pixel, the light-transmitting apertures corresponding to the first-color subpixel and the second-color subpixel are connected to each other, and on one side of the first-color subpixel away from the second-color subpixel, the distance from the light-transmitting aperture to the grid line is greater than the distance from the first-color subpixel to the grid line, and the wavelengths of the emission of the first-color subpixel, the second-color subpixel, and the third-color subpixel decrease sequentially; or the first subpixels are classified into a first color subpixel, a second color subpixel, and a third color subpixel, each of which emits light beams of at least three different colors, and adjacent first color subpixels, second color subpixels, and third color subpixels constitute one pixel, and in each pixel, the second color subpixel is located between the first color subpixel and the third color subpixel, and in each pixel, the light-transmitting apertures corresponding to the first color subpixel, the second color subpixel, and the third color subpixel are connected to each other, and on one side of the first color subpixel away from the second color subpixel, the distance from the light-transmitting aperture to the grid line is greater than the distance from the first color subpixel to the grid line, and on one side of the third color subpixel away from the second color subpixel, the distance from the light-transmitting aperture to the grid line is greater than the distance from the third color subpixel to the grid line, and the wavelengths of the emissions of the first color subpixel, the second color subpixel, and the third color subpixel decrease sequentially; or the touch electrode includes a plurality of mesh-like holes surrounded by the grid lines, the mesh-like holes correspond one-to-one to the first subpixels, the first subpixels are located within the orthogonal projections of the corresponding mesh-like holes onto the display substrate, the centroids of the orthogonal projections of the mesh-like holes onto the display substrate overlap with the centroids of the corresponding first subpixels, the touch electrode includes a plurality of first electrode strips arranged in parallel and a plurality of second electrode strips arranged in parallel, the first electrode strips and the second electrode strips intersect, and the first electrode strips and the second electrode strips are arranged in the grid structure; or the touch electrode includes a plurality of mesh-like holes surrounded by the grid lines, the mesh-like holes correspond one-to-one to the pixels, the pixels are located within the orthogonal projection of the corresponding mesh-like holes onto the display substrate, the centroids of the orthogonal projections of the mesh-like holes onto the display substrate overlap with the centroids of the corresponding pixels, the touch electrode includes a plurality of first electrode strips arranged in parallel and a plurality of second electrode strips arranged in parallel, the first electrode strips and the second electrode strips intersect, and the first electrode strips and the second electrode strips are arranged in the grid structure.
6. The display panel according to claim 5.
7. The first subpixels include a first color subpixel, a second color subpixel, and a third color subpixel that are spaced apart from each other and have different colors, and the first color subpixel, the second color subpixel, and the third color subpixel are adjacently disposed; or the second color subpixels are located on one side of the first color subpixels in the second direction, and the third color subpixels are located on one side of the first color subpixels in the first direction, and the first direction and the second direction intersect; or In the first direction, the first color subpixels and the second color subpixels have the same length and both sides are flush with each other to form a rectangular structure; or In the first direction, the first color subpixels, the second color subpixels, and the third color subpixels are equal in length; or In the second direction, one side of the first color subpixel is flush with one side of the third color subpixel; or In the second direction, one side of the subpixel of the second color is flush with one side of the subpixel of the third color; or the first color subpixels, the second color subpixels, and the third color subpixels are elongated strips and spaced apart sequentially in the first direction; or In a second direction intersecting the first direction, the first color subpixel, the second color subpixel, and the third color subpixel have the same length and both sides are flush with each other to form a rectangular structure.
2. The display panel according to claim 1 .
8. The first subpixel includes at least three of the subpixel blocks, and a plurality of the subpixel blocks are arranged around the first subpixel, and in the first subpixel, at least one of the subpixel blocks is located on one side of the same subpixel block in both the first direction and the second direction; or the isolation structure extends along the first direction and the second direction, and the first sub-pixels are separated by the isolation structure to form adjacent sub-pixel blocks in the first direction and / or adjacent sub-pixel blocks in the second direction; or the first color subpixel includes a number of the subpixel blocks, the second color subpixel includes b number of the subpixel blocks, and the third color subpixel includes c number of the subpixel blocks, where a, b, and c satisfy a≧b≧c; or the first sub-pixel includes two of the sub-pixel blocks, and the two sub-pixel blocks are spaced apart along the first direction; or In the second direction, the two sub-pixel blocks have the same length and both sides are flush with each other to form a rectangular structure; or the first sub-pixel includes a first sub-pixel block, a second sub-pixel block, and a third sub-pixel block, the first sub-pixel block and the second sub-pixel block being located on one side of the third sub-pixel block in the first direction, and the first sub-pixel block and the second sub-pixel block being spaced apart in the second direction; or In the first direction, the first sub-pixel block and the second sub-pixel block have the same length and both sides are flush with each other to form a rectangular structure; or In the first direction, the first sub-pixel block, the second sub-pixel block, and the third sub-pixel block are equal in length; or a side of the first sub-pixel block away from the second sub-pixel block in the second direction is flush with one side of the third sub-pixel block; or a side of the second sub-pixel block away from the first sub-pixel block in the second direction is flush with one side of the third sub-pixel block; or The first sub-pixel block includes four of the sub-pixel blocks, and the four sub-pixel blocks are arranged in a circumferential manner; or At least two adjacent sub-pixel blocks in the first direction and / or the second direction have the same length and both sides are flush with each other to form a rectangular structure; or In the first sub-pixel, at least two of the sub-pixel blocks have the same size when orthogonally projected onto a substrate.
8. The display panel according to claim 7.
9. A display panel, a first display area, wherein the first display area includes a number of first sub-pixels arranged in an array in a first direction, the first sub-pixels including at least two spaced apart sub-pixel blocks; and the display panel includes: A substrate; a pixel defining layer located on one side of the substrate and including a plurality of pixel openings; a light-emitting element of the subpixel block is located within the pixel aperture, and in the first subpixel, at least two of the subpixel blocks are adjacent to each other, and the adjacent two of the subpixel blocks are spaced apart by the pixel defining layer; The display panel includes: the pixel definition layer further includes an isolation structure located on one side away from the substrate and defining a plurality of isolation openings, the light emitting elements of the sub-pixel block are positioned within the isolation openings, the pixel openings correspond to the isolation openings, and the pixel openings communicate with the corresponding isolation openings; In the first sub-pixel, the orthogonal projections of the pixel apertures corresponding to at least two of the sub-pixel blocks are located within the orthogonal projections of the same separating aperture onto the substrate; or an orthogonal projection of the pixel aperture corresponding to each of the sub-pixel blocks onto the substrate is located within an orthogonal projection of each of the separation apertures onto the substrate; A display panel characterized by:
10. A display device, comprising: A display panel comprising the display panel according to any one of claims 1 to 9. A display device comprising:
11. A method for manufacturing a display panel, comprising the steps of: The display panel includes a first display area, the first display area including a number of first sub-pixels arranged in an array in a first direction, the first sub-pixels including at least two sub-pixel blocks, and the manufacturing method includes: Sequentially fabricating a first electrode and a pixel definition layer on a substrate, the pixel definition layer including a plurality of pixel openings, the pixel openings positioning light emitting elements and exposing the first electrode; fabricating an isolation structure on one side of the pixel definition layer away from the substrate, the isolation structure defining a plurality of isolation openings, the pixel openings and the isolation openings corresponding to each other and communicating with each other; and sequentially fabricating a light-emitting functional layer and a second electrode on one side of the isolation structure away from the substrate, the first electrode, the light-emitting functional layer, and the second electrode sequentially stacked on the substrate forming a light-emitting element of the sub-pixel block. wherein, in the first subpixel, there are at least two adjacent subpixel blocks, and the adjacent two subpixel blocks are spaced apart by an isolation structure. A method for manufacturing a display panel comprising the steps of:
12. the first subpixel is a first-color subpixel that emits light of one color, the first display region further includes a number of second-color subpixels and a number of third-color subpixels arranged in an array in the first direction, and adjacent first-color subpixels, second-color subpixels and third-color subpixels constitute one pixel, and the manufacturing method further includes Fabricating the light-emitting element of the first color subpixel on the substrate, the first color subpixel including a number of the subpixel blocks; fabricating the light-emitting element of the second color subpixel on the substrate, the second color subpixel including b number of the subpixel blocks; Here, a and b satisfy a>b, After the step of fabricating the light-emitting element of the second color subpixel on the substrate, the manufacturing method further comprises: fabricating the light-emitting element of the third color subpixel on the substrate, the third color subpixel including c number of the subpixel blocks; Here, b and c satisfy b>c. The method for manufacturing a display panel according to claim 11 .
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