Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is used for improving the brightness of the display panel and prolonging the service life of the display panel. The display panel includes a substrate and a plurality of pixels disposed on the substrate. The plurality of pixels are divided into a plurality of pixel rows, the plurality of pixels in each pixel row are sequentially arranged along the first direction, and the plurality of pixel rows are arranged along the second direction. Each pixel includes a first sub-pixel and a plurality of second sub-pixels. The light-emitting area of at least one second sub-pixel is in an incomplete ring shape. The light-emitting areas of the second sub-pixels are sequentially arranged in a sleeved mode in the second direction. And along the second direction, the first size of the light-emitting area of each second sub-pixel is gradually reduced. In the two adjacent pixel rows, at least part of the first sub-pixel light-emitting area in one pixel row is located in the gap between the two adjacent pixels in the other pixel row, so that the pixels are compactly arranged, the proportion of the first sub-pixel light-emitting area is increased, and the service life of the first sub-pixel light-emitting area is prolonged.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are an active-matrix light-emitting technology. The arrangement of pixels within an OLED can adjust the light-emitting effect and lifespan of the display panel. In some existing OLEDs, the area of ​​the light-emitting region of each sub-pixel within each pixel is essentially fixed, and sometimes different sub-pixels may even have the same area. While this design allows for a compact pixel arrangement and improved space utilization, it can lead to situations where sub-pixels with lower luminous efficiency have shorter lifespans than those with higher luminous efficiency, thus reducing the overall lifespan of the display panel. However, if the light-emitting region areas of each sub-pixel within each pixel are not equal, this lifespan problem can be avoided, but the space utilization of the display panel will be reduced. Summary of the Invention

[0003] The purpose of embodiments of this application is to provide a display panel and display device, which aims to improve the space utilization of the display panel and increase the proportion of the light-emitting area of ​​the first sub-pixel by overlaying multiple second sub-pixels and placing at least a portion of the light-emitting area of ​​the first sub-pixel in one row of pixels within the gap between two adjacent pixels in another row of pixels, thereby extending the lifespan of the first sub-pixel and even the display panel.

[0004] To achieve the above objectives, the embodiments of this disclosure provide the following technical solutions: On one hand, a display panel is provided, comprising a substrate and a plurality of pixels disposed on the substrate. The plurality of pixels are divided into multiple pixel rows, with the plurality of pixels in each pixel row arranged sequentially along a first direction, and the multiple pixel rows arranged along a second direction. In two adjacent pixel rows, the center line of a pixel in one pixel row is located between the center lines of two adjacent pixels in the other pixel row. The first direction and the second direction are perpendicular to each other and both parallel to the substrate. The center line extends along the second direction. Each pixel includes a first sub-pixel and a plurality of second sub-pixels. The light-emitting area of ​​the first sub-pixel is disposed on one side of the light-emitting area of ​​the plurality of second sub-pixels along the second direction. The light-emitting area of ​​at least one second sub-pixel is in the shape of an incomplete ring, with the gap of the incomplete ring facing the light-emitting area of ​​the first sub-pixel. The light-emitting areas of the plurality of second sub-pixels are sequentially nested along the second direction. Along the second direction and in the direction from the light-emitting area of ​​the first sub-pixel to the light-emitting area of ​​the second sub-pixel, the first size of the light-emitting area of ​​each second sub-pixel gradually decreases. The first size is the distance between two points at both ends of the light-emitting area of ​​the second sub-pixel along the first direction. There is a gap between two adjacent pixels. In two adjacent rows of pixels, at least a portion of the light-emitting area of ​​the first sub-pixel in one row is located within the gap between two adjacent pixels in the other row.

[0005] In this embodiment, by placing the center line of a pixel in one row between the center lines of two adjacent pixels in the other row, the pixels can be arranged in a regular and orderly manner on the display panel, thereby reducing the difficulty of pixel fabrication and improving the compactness of pixel arrangement. This results in higher utilization of design space. Furthermore, the light-emitting area of ​​at least one second sub-pixel is incompletely annular, allowing multiple second sub-pixels in each pixel to be nested sequentially along the second direction. Simultaneously, the first size of the light-emitting area of ​​each second sub-pixel gradually decreases along the second direction, creating a gap between two adjacent pixels in each row. This allows at least a portion of the light-emitting area of ​​the first sub-pixel in one row to be located within the gap between two adjacent pixels in the other row, resulting in a roughly fish-scale-like arrangement of multiple pixels. This makes the layout of multiple pixels on the two-dimensional plane more compact, accommodating more pixels within the limited display panel space. Utilizing the gap between two adjacent pixels to accommodate at least a portion of the first sub-pixel increases the proportion of the light-emitting area of ​​the first sub-pixel, thereby slowing down the performance degradation of the first sub-pixel and extending its lifespan, thus extending the lifespan of the display panel.

[0006] In some embodiments, among the plurality of second sub-pixels that are sequentially nested, the shape of the light-emitting area of ​​the outermost second sub-pixel is an incomplete ring.

[0007] In some embodiments, among the plurality of second sub-pixels, the light-emitting area of ​​the second sub-pixel located between the outermost second sub-pixel and the first sub-pixel is solid in shape.

[0008] In some embodiments, among the plurality of second sub-pixels, the light-emitting area of ​​the second sub-pixel disposed between the outermost second sub-pixel and the first sub-pixel extends along a first direction near the boundary of the first sub-pixel. The plurality of second sub-pixels and the first sub-pixel are disposed on opposite sides of the boundary.

[0009] In some embodiments, the light-emitting areas of the plurality of second sub-pixels are all arranged in an incomplete ring shape, and the gaps are all facing the light-emitting area of ​​the first sub-pixel.

[0010] In some embodiments, the shape of the light-emitting area of ​​at least some of the second sub-pixels includes an incomplete circular ring or an incomplete triangular ring.

[0011] In some embodiments, among a plurality of second sub-pixels, the shapes of the adjacent boundaries of the light-emitting areas of two adjacent second sub-pixels are the same. The shapes of the adjacent boundaries of the second sub-pixels adjacent to the first sub-pixel are also the same.

[0012] In some embodiments, in two adjacent rows of pixels, the shape of the first sub-pixel light-emitting area in one row of pixels away from the boundary of the plurality of second sub-pixels is the same as at least a portion of the shape of the boundary of the outermost second sub-pixel light-emitting area of ​​two adjacent pixels in the other row of pixels.

[0013] In some embodiments, in two adjacent rows of pixels, the portion of the smaller end of a pixel in one row is located within the gap between two adjacent pixels in the other row.

[0014] In some embodiments, in two adjacent rows of pixels, the regions where multiple second sub-pixels of multiple pixels in one row of pixels are located do not intersect with the regions where multiple second sub-pixels of multiple pixels in the other row of pixels in a second direction.

[0015] In some embodiments, the luminous efficiency of the first sub-pixel is lower than that of the second sub-pixel. The area of ​​the luminous region of the first sub-pixel is larger than the area of ​​the luminous region of the second sub-pixel.

[0016] In some embodiments, the first sub-pixel is a sub-pixel that emits blue light. The light emitted by the plurality of second sub-pixels includes one or more of red and green light.

[0017] On the other hand, a display device is provided, which includes the display panel and circuit board as described in the above embodiments. The circuit board is electrically connected to the display panel.

[0018] The above-described display device has the same beneficial technical effects as the display panel provided in some of the above embodiments, and will not be described again here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in some embodiments of this application will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this application.

[0020] Figure 1 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of this application; Figure 2 A schematic diagram of pixel arrangement provided in this application; Figure 3 A schematic diagram of a pixel provided for an embodiment of this application; Figure 4 A schematic diagram of another pixel provided in an embodiment of this application; Figure 5 A schematic diagram of another pixel provided in an embodiment of this application; Figure 6 A schematic diagram of another pixel provided in an embodiment of this application; Figure 7 A schematic diagram of another pixel provided in an embodiment of this application; Figure 8 A schematic diagram of another pixel provided in an embodiment of this application; Figure 9 A schematic diagram of another pixel provided in an embodiment of this application; Figure 10 A schematic diagram of another pixel provided in an embodiment of this application; Figure 11 This is a schematic diagram of a pixel fabrication process provided in an embodiment of this application; Figure 12 This is a schematic diagram of the mask used in preparing pixels according to embodiments of this application; Figure 13 This is a schematic diagram illustrating the steps for preparing pixels provided in an embodiment of this application; Figure 14 This is a schematic diagram illustrating the steps for preparing pixels provided in an embodiment of this application; Figure 15 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation

[0021] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0022] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0023] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0024] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0025] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0026] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0027] In addition, the use of “based on” implies openness and inclusivity, because processes, steps, calculations or other actions “based on” one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0028] Organic light-emitting diodes (OLEDs) are an active-matrix light-emitting technology that can adjust the light emission effect and lifespan of a display panel based on the arrangement of pixels. In some existing OLEDs, the area of ​​the light-emitting region of each sub-pixel of each pixel is relatively fixed, and the areas of different sub-pixels may even be equal. For example, the light-emitting areas of B pixels, R pixels, and G pixels are all equal. Although this can achieve a compact arrangement of pixels and improve space utilization, it will cause the lifespan of sub-pixels with low luminous efficiency (such as the lifespan of B pixels) to be shorter than that of sub-pixels with high luminous efficiency (such as R pixels and G pixels), thus affecting the overall lifespan of the display panel. However, when the areas of the light-emitting regions of each sub-pixel of each pixel are not equal, the compactness of the arrangement of the sub-pixels is limited, and the space utilization of the display panel is low.

[0029] To address the aforementioned problems, this application provides a display panel. Figure 1 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of this application. Figure 2 This is a schematic diagram of a pixel arrangement provided in this application.

[0030] See Figure 1 and Figure 2 The aforementioned display panel 100 includes a substrate 1 and a plurality of pixels 2.

[0031] Along direction Z, multiple pixels 2 are disposed on substrate 1 to achieve full-screen display of display panel 100.

[0032] For example, see Figure 1 The aforementioned display panel 100 also includes an anode 3, a cathode 4, a pixel defining layer 5, a pixel driving circuit 6, and an emissive layer L.

[0033] Along direction Z, anode 3 and cathode 4 are respectively disposed on the lower and upper sides of the light-emitting layer L to form an electric field to drive carrier injection and recombination in the light-emitting layer L, thereby realizing the self-emission of OLED.

[0034] The pixel driving circuit 6 is used to provide current to the pixel 2, and the light intensity of the pixel 2 can be controlled by changing the magnitude of the current.

[0035] See Figure 1 The aforementioned pixel defining layer 5 contains multiple openings ( Figure 1 Only a cross-section with an opening is shown in the image.

[0036] See Figure 2 The aforementioned multiple pixels 2 can be divided into multiple rows of pixels.

[0037] Among them, multiple rows of pixels can be arranged along the second direction, and multiple pixels 2 in each row of pixels can be set sequentially along the first direction.

[0038] Here, the first direction X and the second direction Y can be perpendicular to each other and both are parallel to the substrate 1.

[0039] For example, Figure 2 In the middle, multiple pixels 2 are divided into 3 pixel rows. These 3 pixel rows are arranged along the second direction Y. In each pixel row, multiple pixels 2 are set sequentially along the first direction X.

[0040] For example, multiple rows of pixels can be arranged along the first direction X, and multiple pixels 2 in each row of pixels can be arranged sequentially along the second direction Y to enrich the arrangement of pixels 2. This application does not limit this.

[0041] See Figure 2 Along the second direction Y, in two adjacent rows of pixels, the center line C1 of pixel 2 in one row can be located between the center lines of two adjacent pixels 2 in the other row along the first direction X. That is, the center line C1 can be located between the center line C2 and the center line C3, so that the two adjacent rows of pixels can be staggered, thereby making the arrangement of multiple pixels 2 compact, improving the space utilization of the display panel 100, and making the layout of multiple pixels 2 on the display panel 100 regular and orderly, reducing the manufacturing difficulty of pixels 2.

[0042] The center lines C1, C2, and C3 here are all straight lines extending along the second direction Y.

[0043] For example, see Figure 2 In two adjacent rows of pixels, along the first direction X, the distance between the center line C1 of pixel 2 in one row and the center lines of two adjacent pixels 2 in the other row can be equal. That is, along the first direction X, the distance between center line C1 and center line C2 is equal to the distance between center line C1 and center line C3.

[0044] In this way, while ensuring that the pixels 2 in adjacent rows of pixels are staggered, the uniformity of the distribution of pixels 2 can be improved, thereby increasing the space utilization of the display panel 100 and further reducing the manufacturing difficulty of pixels 2.

[0045] For example, Figure 2 In the second direction Y, the center line C1 of the three pixels 2 in the first row of pixels can be located between the center line C2 of the first pixel 2 and the center line C3 of the second pixel 2 set from left to right in the direction X of the second row of pixels, and the distance from center line C1 to center line C2 is equal to the distance from center line C1 to center line C3.

[0046] See Figure 2Along the second direction Y, there is a pixel delimiting layer 5 between two adjacent rows of pixels in the multi-row pixel row, and along the direction X, there is also a pixel delimiting layer 5 between two adjacent pixels 2 in each row of pixels, so as to effectively isolate each pixel 2 and prevent problems such as optical crosstalk or electrical signal interference between pixels 2.

[0047] Figure 3 This is a schematic diagram of a pixel provided in an embodiment of this application.

[0048] See Figure 2 and Figure 3 Each pixel 2 includes a first sub-pixel 21 and multiple second sub-pixels 22.

[0049] For example, see Figure 2 and Figure 3 Each pixel 2 may include two second sub-pixels 22, or other numbers of second sub-pixels 22. This application does not limit this to meet diverse user needs.

[0050] The embodiments of this application are illustrated by taking a pixel 2 as an example, which includes a first sub-pixel 21 and two second sub-pixels 22.

[0051] See Figure 2 and Figure 3 Along the second direction Y, the light-emitting area of ​​the first sub-pixel 21 can be set on one side of the light-emitting area of ​​multiple second sub-pixels 22.

[0052] For example, Figure 3 In the middle, along the second direction Y, from bottom to top, the light-emitting area of ​​the first sub-pixel 21 is located below the light-emitting area of ​​the first second sub-pixel 22.

[0053] The light-emitting area refers to the portion of the light-emitting layer L that is defined by the opening of the pixel defining layer 5 and can actually generate light output when current is injected.

[0054] The aforementioned light-emitting area can be divided by the pixel delimiting layer 5. That is, the pixel delimiting layer 5 is provided with multiple opening areas. These opening areas can be used to define the boundary range of the light-emitting area of ​​the sub-pixel. Each sub-pixel's light-emitting area corresponds to an opening area. By defining the shape and size of the opening area, the shape and size of the corresponding sub-pixel's light-emitting area can be defined.

[0055] See Figure 2 and Figure 3Along the second direction Y, there is a pixel delimiting material between the light-emitting area of ​​the first sub-pixel 21 and the light-emitting area of ​​the second sub-pixel 22, and there is also a pixel delimiting material between the light-emitting areas of two adjacent second sub-pixels 22. This effectively isolates the light-emitting areas of each sub-pixel, avoiding color mixing and light leakage between the light-emitting areas of the first sub-pixel 21 and the second sub-pixel 22, as well as between the light-emitting areas of multiple second sub-pixels 22. This ensures that each sub-pixel can independently and accurately display its corresponding color and brightness information, thereby improving the color purity and contrast of the sub-pixel light-emitting area, and thus improving the display clarity of the entire display panel 100.

[0056] See Figure 2 and Figure 3 The shape of the light-emitting area of ​​at least one second sub-pixel 22 can be an incomplete ring, and the gap of the incomplete ring faces the light-emitting area of ​​the first sub-pixel 21, that is, along the direction Z. The shape of the orthogonal projection of the light-emitting area of ​​at least one second sub-pixel 22 on the substrate can be an incomplete ring, and the gap of the incomplete ring faces the orthogonal projection area of ​​the light-emitting area of ​​the first sub-pixel 21 on the substrate 1.

[0057] In this way, the shape of the light-emitting area of ​​at least one second sub-pixel 22 is an incomplete ring, which enables multiple second sub-pixels 22 in each pixel 2 to be nested, thereby making multiple second sub-pixels 22 compactly arranged and improving the space utilization of the display panel 100. At the same time, the incomplete ring gap faces the light-emitting area of ​​the first sub-pixel 21, allowing the light-emitting area of ​​the first sub-pixel 21 inside the nest to extend out through the gap area, thereby increasing the area of ​​the light-emitting area of ​​the first sub-pixel 21 and increasing the proportion of the light-emitting area of ​​the first sub-pixel 21.

[0058] For example, see Figure 2 and Figure 3 The shape of the light-emitting area of ​​at least one second sub-pixel 22 can be an incomplete circular ring (e.g., a semi-circular ring) or other incomplete rings, such as incomplete rectangular rings, triangular rings, etc. This application does not limit this.

[0059] See Figure 2 and Figure 3 Along the second direction Y, the aforementioned multiple second sub-pixels 22 can be sequentially nested, for example, Figure 3 In the middle, along the second direction Y, from top to bottom, the first second sub-pixel 22 nests the second second sub-pixel 22.

[0060] For example, see Figure 2 and Figure 3Along the second direction Y, the shapes of the light-emitting areas of the plurality of second sub-pixels 22 may be the same or different. However, the boundary of the nested second sub-pixel 22 is adapted to the inner boundary of the nested second sub-pixel 22 to ensure nesting. This application does not impose any restrictions on this.

[0061] For example, Figure 3 In the middle, the light-emitting areas of the two second sub-pixels 22 are both incomplete circular rings. Alternatively, along the second direction Y, from top to bottom, the outer boundary of the light-emitting area of ​​the first second sub-pixel 22 (i.e., the nested second sub-pixel 22) is a triangle, and the inner boundary is an arc. The light-emitting area of ​​the second second sub-pixel 22 (the nested second sub-pixel 22) is an incomplete semi-circular ring. In this case, the inner boundary of the first second sub-pixel 22 matches the outer boundary of the second second sub-pixel 22.

[0062] In this way, multiple second sub-pixels 22 are nested in the second direction Y, which allows the multiple second sub-pixels 22 to be arranged more compactly, thereby accommodating more second sub-pixels 22 in the limited space of the display panel 100 and improving space utilization.

[0063] See Figure 2 and Figure 3 Along the second direction Y, the light-emitting area of ​​the first sub-pixel 21 points to the light-emitting area of ​​the second sub-pixel 22, and the first size of the light-emitting area of ​​each second sub-pixel 22 gradually decreases.

[0064] The first dimension here is the distance between the two points of the second sub-pixel 22 located at both ends in the first direction X, that is, the distance between the left end point and the right end point of the second sub-pixel 22 along the first direction X.

[0065] In this way, the first size of the light-emitting area of ​​the second sub-pixel 22 gradually changes in the second direction Y, which can leave a larger area on the sides of multiple second sub-pixels 22 (such as the lower side, right side and left side of the second sub-pixel 22), so that a sub-pixel with lower luminous efficiency can be set in the area later, thereby reducing its driving current and achieving a balance between its power consumption and lifespan.

[0066] See Figure 2 Along the first direction X, there is a gap between two adjacent pixels 2 in each row of pixels, that is, due to the larger end of the first size of the light-emitting area of ​​two adjacent pixels 2 in the same row of pixels (e.g. Figure 2 In the middle, the distance between the left and right endpoints of the bottom of the second sub-pixel 22 (at which time the first size value is the largest) is arranged along the first direction X and along the second direction Y. The first size of the light-emitting area of ​​these two pixels 2 gradually decreases. Therefore, there must be a gap between two adjacent pixels 2 in the same row.

[0067] The size of the gap here in the second direction Y can gradually increase.

[0068] This makes it easier to set other sub-pixels in the gap, thereby improving the space utilization of the display panel.

[0069] See Figure 2 Along the second direction Y, in two adjacent rows of pixels, at least part of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels is located in the gap between two adjacent pixels 2 in the other row of pixels. That is, the gap between two adjacent pixels 2 in the same row of pixels can be used to accommodate the first sub-pixel 21 in the other row of pixels, or the part of the first sub-pixel 21 extending through the gap of the light-emitting area of ​​the second sub-pixel 22. At this time, the multiple pixels 2 can be roughly arranged in a fish scale pattern.

[0070] In this way, the area of ​​the light-emitting area of ​​the first sub-pixel 21 can be increased, the proportion of the light-emitting area of ​​the first sub-pixel 21 can be increased, and the sub-pixels can be arranged more closely. This can slow down the performance degradation of the first sub-pixel 21 and extend its lifespan, while further improving the space utilization of the display panel 100.

[0071] For example, along the second direction Y, a portion of the first sub-pixel 21 of each pixel 2 in the second row of pixels is located in the gap between two adjacent pixels 2 in the first row of pixels in the first direction. Similarly, a portion of the first sub-pixel 21 of each pixel 2 in the third row of pixels is located in the gap between two adjacent pixels 2 in the second row of pixels in the first direction. This arrangement forms a pixel array.

[0072] For example, the luminous efficiency of the first sub-pixel 21 may be lower than that of the second sub-pixel 22.

[0073] Luminous efficiency refers to the ability of a subpixel to convert input electrical energy or other forms of energy into visible light energy, which is usually expressed as the ratio of luminous flux to input power.

[0074] For example, see Figure 2 and Figure 3 The area of ​​the light-emitting area of ​​the first sub-pixel 21 can be larger than the area of ​​the light-emitting area of ​​the second sub-pixel 22. That is, the gap between two adjacent pixels 2 in the same row of pixels can be used to accommodate the first sub-pixel 21 with low luminous efficiency in another row of pixels, or the part of the first sub-pixel 21 with low luminous efficiency that extends out through the gap of the light-emitting area of ​​the second sub-pixel 22. This increases the area of ​​the light-emitting area of ​​the first sub-pixel 21 and the proportion of the light-emitting area of ​​the first sub-pixel 21, thereby slowing down the performance degradation of the first sub-pixel 21 with low luminous efficiency and improving its service life.

[0075] It is understood that, in this embodiment, by placing the center line of a pixel in one row between the center lines of two adjacent pixels in the other row, the pixel 2 can be arranged regularly and orderly on the display panel 100, thereby reducing the difficulty of manufacturing the pixel 2 and improving the compactness of the pixel 2 arrangement. This results in higher utilization of the design space by the pixel 2. Furthermore, the shape of the light-emitting area of ​​at least one second sub-pixel 22 is an incomplete ring, allowing multiple second sub-pixels 22 in each pixel 2 to be sequentially nested along the second direction. At the same time, the first size of the light-emitting area of ​​each second sub-pixel 22 gradually decreases along the second direction, making... There is a gap between two adjacent pixels 2 in each row, so that at least part of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels is located in the gap between two adjacent pixels 2 in another row of pixels, so that multiple pixels 2 are arranged in a roughly fish-scale pattern. In this way, the layout of multiple pixels 2 on the two-dimensional plane will be more compact, and more pixels 2 can be accommodated in the limited space of the display panel 100. At the same time, by using the gap between two adjacent pixels 2 to accommodate at least part of the first sub-pixel 21, the proportion of the light-emitting area of ​​the first sub-pixel 21 can be increased, thereby slowing down the performance degradation of the first sub-pixel 21 and extending its lifespan, thereby extending the lifespan of the display panel 100.

[0076] Figure 4 This is a schematic diagram of another pixel provided in an embodiment of this application. Figure 5 This is a schematic diagram of another pixel provided in an embodiment of this application. Figure 6 This is a schematic diagram of another pixel provided in an embodiment of this application.

[0077] In some embodiments, see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 In the above embodiments, among the multiple second sub-pixels 22 sequentially nested, the light-emitting area of ​​the outermost second sub-pixel 22 has an incomplete annular shape, for example, Figure 3 In the middle, along the second direction Y, from top to bottom, the shape of the light-emitting area of ​​the first second sub-pixel 22 can be an incomplete ring.

[0078] For example, see Figures 2-7 The shape of the light-emitting area of ​​the outermost second sub-pixel 22 among the above-mentioned plurality of second sub-pixels 22 can be a semi-circular ring, a triangular ring, or other incomplete rings, and this application does not impose any restrictions on this.

[0079] For example, see Figures 1-7The shape of the light-emitting area of ​​the outermost second sub-pixel 22 can be defined by the pixel defining layer 5, that is, the shape of the opening of the pixel defining layer 5, which is the shape of the light-emitting area of ​​the second sub-pixel 22 set here.

[0080] The size of the light-emitting area of ​​the second sub-pixel 22 can be slightly smaller than or equal to the size of the opening of the pixel defining layer 5, that is, the area of ​​the light-emitting area of ​​the second sub-pixel 22 can be slightly smaller than or equal to the area of ​​the orthogonal projection of the opening of the pixel defining layer 5 onto the substrate 1.

[0081] For example, the shapes of the light-emitting areas of the remaining second sub-pixels 22 (excluding the outermost second sub-pixel 22) and the first sub-pixel 21 can be defined based on the shape of the light-emitting area of ​​the outermost second sub-pixel 22 and using the opening of the pixel defining layer 5.

[0082] For example, Figure 3 In the middle, along the second direction Y, from top to bottom, the shape of the light-emitting area of ​​the first second sub-pixel 22 (i.e. the outermost second sub-pixel 22) is a semi-circular ring. The outer boundary of the light-emitting area of ​​the second second sub-pixel 22 is adapted to the inner boundary of the first second sub-pixel 22, forming a semi-circle. At this time, the outer boundary of the opening area of ​​the pixel definition layer 5 corresponding to the second second sub-pixel 22 is designed as a semi-circle to accurately define the shape of the light-emitting area of ​​the second second sub-pixel 22.

[0083] In this way, the shape of the light-emitting area of ​​the outermost second sub-pixel 22 among the multiple second sub-pixels 22 is an incomplete ring. On the one hand, this incomplete ring structure makes it easy to combine the remaining second sub-pixels 22 and limit the size of the light-emitting area of ​​the first sub-pixel 21 nested inside the multiple second sub-pixels 22. This allows the size of the light-emitting area of ​​the first sub-pixel 21 to be adjusted by changing the size of the second sub-pixel 22 as needed (e.g., the size of the second sub-pixel 22 in the first or second direction). On the other hand, it allows the multiple second sub-pixels 21 in each pixel 2 to be nested sequentially along the second direction Y, thereby making the multiple second sub-pixels 22 compactly arranged and improving the space utilization of the display panel 100.

[0084] In some embodiments, see Figures 2-6 Along the second direction, among the multiple second sub-pixels 22 disposed in each pixel 2, the shape of the light-emitting area of ​​the second sub-pixel 22 disposed between the outermost second sub-pixel 22 and the first sub-pixel 21 can be solid.

[0085] The first sub-pixel 21 here can be located in the gap between two adjacent pixels 2 (excluding the first sub-pixel 21) in the same row of pixels, and the two adjacent pixels 2 can share a first sub-pixel 21.

[0086] For example, see Figures 4-5 The shape of the light-emitting area of ​​the second sub-pixel 22, which is sandwiched between the outermost second sub-pixel 22 and the first sub-pixel 21, can be a solid semicircle, a triangle, or other shapes, and this application does not limit this.

[0087] For example, Figure 2 In the middle, along the second direction Y, from top to bottom, the shape of the light-emitting area of ​​the second sub-pixel 22 can be a solid shape, that is, forming Figure 4 The second sub-pixel 22 of the solid semicircle in the middle, or, Figure 5 In the solid triangle in the middle, the second sub-pixel 22, taking the first row of pixels as an example, at this time, along the first direction X, the first pixel 2 and the second pixel 2 share a first sub-pixel 21, and the first sub-pixel 21 is located in the gap between the first pixel 2 and the second pixel 2.

[0088] In this way, the shape of the light-emitting area of ​​the second sub-pixel 22, which is sandwiched between the outermost second sub-pixel 22 and the first sub-pixel 21, is solid. This can increase the proportion of the light-emitting area of ​​the second sub-pixel 21 while making the shape design of the light-emitting area of ​​the second sub-pixel 22 relatively simple and reducing the difficulty of manufacturing the second sub-pixel 22.

[0089] For example, the shape and size of the light-emitting area of ​​the first sub-pixel 21 can be determined based on the shape and size of the light-emitting areas of the plurality of second sub-pixels 22, as well as parameters such as the distance between the larger ends of two adjacent pixels 2 in the same row of pixels.

[0090] For example, Figure 4 In the first direction X, there is no gap between the outermost second sub-pixels 22 of two adjacent pixels 2 in the same row of pixels, and the shape of the light-emitting area of ​​the outermost second sub-pixel 22 in each pixel 2 is a semi-circular ring. At this time, the left and right boundaries of the light-emitting area of ​​the first sub-pixel 21 are arc-shaped. Figure 5 In the same row of pixels, there is a gap between the outermost second sub-pixels 22 of two adjacent pixels 2, and the shape of the light-emitting area of ​​the outermost second sub-pixel 22 in each pixel 2 is a triangular ring. At this time, the shape of the light-emitting area of ​​the first sub-pixel 21 is a trapezoid.

[0091] Figure 7 This is a schematic diagram of another pixel provided in an embodiment of this application. Figure 8 This is a schematic diagram of another pixel provided in an embodiment of this application. Figure 9 This is a schematic diagram of another pixel provided for an embodiment of this application, wherein, Figure 7Multiple pixels 2 in the middle relative to Figure 8 The misaligned arrangement of multiple pixels 2 in the image is more compact.

[0092] In some embodiments, see Figure 2 , Figure 7 , Figure 8 and Figure 9 Among the multiple second sub-pixels 22 that are overlaid, the light-emitting area of ​​the second sub-pixel 22 that is overlaid between the outermost second sub-pixel 22 and the first sub-pixel 21 is close to the boundary of the first sub-pixel 21 and can extend along the first direction X. At this time, the shape of the light-emitting area of ​​the second sub-pixel 22 and the first sub-pixel 21 of pixel 2, as well as the size of the light-emitting area in the first direction X, will change.

[0093] Here, multiple second sub-pixels 22 and first sub-pixels 21 in pixel 2 can be located on both sides of the light-emitting area of ​​the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21, close to the boundary of the first sub-pixel 21, which can be a straight line.

[0094] For example, Figure 8 In pixel 2, the shape of the light-emitting area of ​​the second sub-pixel 22 is an isosceles triangular ring. Along the second direction Y, in each pixel 2, from top to bottom, the light-emitting area of ​​the second sub-pixel 22 near the boundary of the first sub-pixel 21 can extend along the first direction X, causing the shape and size of the light-emitting area of ​​the second sub-pixel 22 to change, forming a shape like... Figure 9 In the pixel 2 shown, the shape of the light-emitting area of ​​the second sub-pixel 22 in pixel 2 is a triangular ring, and its first size is increased. The boundary of the light-emitting area of ​​the second sub-pixel 22 near the first sub-pixel 21 includes the left and right boundaries of the light-emitting area of ​​the second sub-pixel 22.

[0095] For example, among the plurality of second sub-pixels 22 disposed in a nested configuration, the light-emitting area of ​​the second sub-pixel 22 disposed between the outermost second sub-pixel 22 and the first sub-pixel 21 is located near the boundary of the first sub-pixel 21 (e.g., Figure 8 The bottom edge of the second sub-pixel 22 in the middle of pixel 2 can be along a direction that makes an angle with the first direction X (e.g., with an angle with the first direction X). Extending in the direction of the included angle, at this time, the boundary of the light-emitting area of ​​the first sub-pixel 21 near the middle second sub-pixel 21 (that is, the boundary of the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21) can also extend in the same direction as the first direction X, and this application does not limit this.

[0096] For example, see Figure 2 , Figure 7 , Figure 8and Figure 9 Among the multiple second sub-pixels 22 that are overlaid, the boundary of the light-emitting area of ​​the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21 near the first sub-pixel 21 can be straight, curved, or other shapes. That is, the boundary of the light-emitting area of ​​the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21 near the first sub-pixel 21 can be any shape. At this time, the boundary of the light-emitting area of ​​the first sub-pixel 21 near the light-emitting area of ​​the second sub-pixel 22 can also be straight, curved, or other shapes, and the first sub-pixel 21 can be overlaid with the second sub-pixel 22 at least in part.

[0097] In this way, by making the light-emitting area of ​​the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21 extend along the first direction X or other directions, the light-emitting area of ​​the second sub-pixel 22 between the outermost second sub-pixel 22 and the first sub-pixel 21 can be of any shape, thereby making the shape of the sub-pixel light-emitting area more diverse and making it suitable for various application scenarios.

[0098] Figure 10 This is a schematic diagram of another pixel provided in an embodiment of this application. Figure 10 Multiple pixels 2 in the middle relative to Figure 2 The misaligned arrangement of multiple pixels 2 in the image is more compact.

[0099] In some embodiments, see Figures 2-10 In each pixel 2, the shape of the light-emitting area of ​​multiple second sub-pixels 22 can all be an incomplete ring, and the gap of the incomplete ring faces the light-emitting area of ​​the first sub-pixel 21.

[0100] For example, in each pixel 2, the shape of the light-emitting area of ​​multiple second sub-pixels 22 can be the same incomplete ring, that is, they can all be incomplete semi-circular rings, quarter-circular rings, triangular rings, rectangular rings, or other incomplete rings.

[0101] In this way, the shape of the light-emitting area of ​​the multiple second sub-pixels 22 in each pixel 2 is not a complete ring. This ensures that the multiple second sub-pixels 22 in each pixel 2 can be sequentially nested along the second direction Y, while making the pattern design of the light-emitting area of ​​the multiple second sub-pixels 22 relatively simple. This allows the multiple second sub-pixels 22 to be arranged compactly, improving the space utilization of the display panel 100, and also reducing the manufacturing difficulty of the second sub-pixels 22.

[0102] For example, in each pixel 2, the shape of the light-emitting area of ​​all the multiple second sub-pixels 22 disposed therein is an incomplete ring, but the shape of the light-emitting area of ​​the outermost second sub-pixel 22 may be different from the shape of the light-emitting area of ​​the remaining second sub-pixels 22, so that the display panel 100 can be adapted to various application requirements. This application does not limit this.

[0103] In some embodiments, see Figures 2-10 In each pixel 2, among the multiple second sub-pixels 22, the shape of the light-emitting area of ​​at least some of the second sub-pixels 22 may include an incomplete circular ring or an incomplete triangular ring.

[0104] The incomplete triangular ring here can be an isosceles triangular ring, as well as triangular rings of other sizes.

[0105] For example, Figure 2 In the image, the luminous areas of multiple second sub-pixels 22 in each pixel 2 are all incomplete semi-circular rings. Figure 8 In the image, the luminous areas of multiple second sub-pixels 22 in each pixel 2 are all incomplete triangular ring shapes, while Figure 4 In the middle, along the second direction Y, from top to bottom, in each pixel 2, the shape of the light-emitting area of ​​the first second sub-pixel 22 is an incomplete semi-circular ring, and the shape of the light-emitting area of ​​the second second sub-pixel 22 is a semi-circular circle.

[0106] For example, among the plurality of second sub-pixels 22 of each pixel 2, the shape of the light-emitting area of ​​at least some of the second sub-pixels 22 may also include an incomplete quarter-circle ring, an incomplete rectangular ring, etc., and this application does not limit this.

[0107] For example, when the boundary of the light-emitting area of ​​at least some of the multiple second sub-pixels 22 of each pixel 2 can be a jagged line, then along the second direction Y and the direction from the light-emitting area of ​​the first sub-pixel 21 to the light-emitting area of ​​the second sub-pixel 22, the first size of the light-emitting area of ​​each second sub-pixel 22 also gradually decreases.

[0108] The zigzag lines here can have an overall curvature.

[0109] In this way, the shape of the light-emitting area of ​​at least some of the second sub-pixels 22 includes an incomplete ring (e.g., an incomplete circular ring, an incomplete triangular ring, etc.), which can ensure that the multiple second sub-pixels 22 in each pixel 2 can be sequentially nested along the second direction Y, so that the multiple second sub-pixels 22 are arranged compactly, thereby improving the space utilization of the display panel 100.

[0110] In some embodiments, see Figures 2-10In each pixel 2, among the multiple second sub-pixels 22, the shapes of the adjacent light-emitting areas of two adjacent second sub-pixels 22 in the second direction Y or the first direction X can be the same, for example, both are arc-shaped or both are straight-line-shaped. In this way, while ensuring that multiple second sub-pixels 22 are nested, it is convenient to arrange multiple second sub-pixels 22 compactly along the second direction Y or the first direction X, thereby improving the space utilization of the display panel 100.

[0111] For example, among the multiple second sub-pixels 22 of each pixel 2, the shapes of the adjacent light-emitting areas of two second sub-pixels 22 in the second direction Y or the first direction X can be similar or approximately the same. For example, the inner boundary of the light-emitting area of ​​the outer second sub-pixel 22 is a broken line, and the outer boundary of the light-emitting area of ​​the inner second sub-pixel 22 is an arc, and the broken line extends approximately along the curvature of the arc. Similarly, the boundary of the light-emitting area of ​​the outer second sub-pixel 22 can overlap the boundary of the inner second sub-pixel 22, that is, the boundary of the light-emitting area of ​​the outer second sub-pixel 22 can nest the boundary of the inner second sub-pixel 22. This also ensures that the multiple second sub-pixels 22 in each pixel 2 can be overlapped, so that the multiple second sub-pixels 22 are arranged compactly, thereby improving the space utilization of the display panel 100.

[0112] For example, when a pixel 2 includes a first sub-pixel 21 and two second sub-pixels 22, along the second direction Y from top to bottom, the shape of the lower boundary of the light-emitting area of ​​the first second sub-pixel 22 can be semi-circular or close to semi-circular with the shape of the upper boundary of the light-emitting area of ​​the second second sub-pixel 22. Alternatively, the shape of the lower boundary of the light-emitting area of ​​the first second sub-pixel 22 is semi-circular, and the shape of the upper boundary of the light-emitting area of ​​the second second sub-pixel 22 is a broken line. However, the lower boundary of the light-emitting area of ​​the first second sub-pixel 22 can be nested within the upper boundary of the light-emitting area of ​​the second second sub-pixel 22.

[0113] See Figures 2-10 In the plurality of second sub-pixels 22, the shapes of the light-emitting areas of the second sub-pixel 22 and the light-emitting areas of the first sub-pixel 21 that are adjacent to each other can be the same, close, or approximately the same, and this application does not impose any restrictions on this.

[0114] For example, when a pixel 2 includes a first sub-pixel 21 and two second sub-pixels 22, along the second direction Y from top to bottom, the shape of the lower boundary of the light-emitting area of ​​the second sub-pixel 22 and the shape of the upper boundary of the light-emitting area of ​​the first sub-pixel 21 can both be semi-circular, or both are close to semi-circular. Alternatively, the shape of the lower boundary of the light-emitting area of ​​the second sub-pixel 22 is semi-circular, and the shape of the upper boundary of the light-emitting area of ​​the first sub-pixel 21 is a broken line. However, the lower boundary of the light-emitting area of ​​the second sub-pixel 22 can be nested within the upper boundary of the light-emitting area of ​​the first sub-pixel 22.

[0115] For example, see Figures 2-10 Among the multiple second sub-pixels 22, the boundaries of the light-emitting areas of two adjacent second sub-pixels 22 can be of the same or similar shape, and / or the boundaries of the light-emitting areas of the second sub-pixels 22 and the light-emitting areas of the first sub-pixels 21 adjacent to the first sub-pixels 21 can also be of the same or similar shape. However, in this case, the boundary of the outer second sub-pixel 22 light-emitting area can overlap the boundary of the inner second sub-pixel 22, that is, the boundary of the outer second sub-pixel 22 light-emitting area can nest the boundary of the inner second sub-pixel 22, and the boundary of the second sub-pixel 22 light-emitting area adjacent to the first sub-pixel 21 can nest the boundary of the first sub-pixel 21 light-emitting area. This application does not impose any restrictions on this.

[0116] In some embodiments, see Figure 2 ,as well as Figures 4-10 Along the second direction Y, in two adjacent rows of pixels, the shape of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels away from the boundary of the plurality of second sub-pixels 22 can be the same as the shape of at least part of the boundary of the light-emitting area of ​​the outermost second sub-pixel 22 of two adjacent pixels 2 in the other row of pixels along the first direction X.

[0117] That is, the shape of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels away from the boundary of the plurality of second sub-pixels 22 can be the same as or completely identical to the portion of the gap between two adjacent pixels 2 in the first direction Y that is close to the boundary of the outermost second sub-pixel 22 of the two pixels 2.

[0118] The aforementioned pixel rows can also be arranged along the first direction X, and the pixels 2 in each pixel row can be arranged along the second direction Y. This application does not impose any restrictions on this.

[0119] For example, Figure 2In the middle, along the second direction Y, from top to bottom, the shape of the first sub-pixel 21 in the first row of pixels away from the boundary of the multiple second sub-pixels 22, and the boundary of the light-emitting area of ​​the outermost second sub-pixel 22 in each pixel 2 in the second row of pixels near the gap can both be arc-shaped, so that the boundaries of the two sub-pixels can be adapted, so that the gap between two adjacent pixels 2 in the second row of pixels can better accommodate part or all of the first sub-pixel 21, or, as Figure 6 As shown, the shape of the first sub-pixel 21 in the first row of pixels away from the boundary of the multiple second sub-pixels 22, and the boundary of the light-emitting area of ​​the outermost second sub-pixel 22 in each pixel 2 in the second row of pixels near the gap can both be straight lines.

[0120] For example, in two adjacent rows of pixels along the second direction Y, the shape of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels away from the boundaries of the plurality of second sub-pixels 22 can be substantially the same as the shape of at least part of the boundary of the light-emitting area of ​​the outermost second sub-pixel 22 of two adjacent pixels 2 in the other row of pixels along the first direction X.

[0121] For example, the light-emitting area of ​​the first sub-pixel 21 in one row of pixels can be curved away from the boundaries of multiple second sub-pixels 22. In another row of pixels, along the first direction X, the boundary of the light-emitting area of ​​the second sub-pixel 22 of two adjacent pixels 2, which is overlaid on the outermost side, can be a triangular straight line shape that matches the curved shape.

[0122] In this way, at least a portion of the light-emitting area of ​​the first sub-pixel 21 in one row of pixels can be adapted to the gap between two adjacent pixels 2 in another row of pixels, thereby making full use of the space of the display panel 100 and improving its space utilization.

[0123] In some embodiments, see Figure 5 , Figure 7 , Figure 8 and Figure 9 Along the second direction Y, in two adjacent rows of pixels, the portion of the smaller end of pixel 2 in one row is located in the gap between two adjacent pixels 2 in the other row along the first direction.

[0124] That is, pixel 2 in one row of pixels intersects with pixel 2 in another row of pixels in the second direction Y.

[0125] For example, Figure 5 In the middle, along the second direction Y, from bottom to top, the intersection of pixel 2 in the first row and pixel 2 in the second row is smaller, while... Figure 7 or Figure 8In the image, pixel 2 in the first row of pixels intersects with pixel 2 in the second row of pixels in a larger area, meaning the intersection is deeper. Figure 8 In the first row of pixels, the top corner of the third pixel 2 directly touches the bottom edge of the third pixel of the first row of pixels.

[0126] The gap here can be formed by four pixels of size 2, which are located in three rows of pixels.

[0127] For example, Figure 9 In the middle, along the second direction Y, from bottom to top, the gap can be formed by the a portion of the second pixel 2 in the first row of pixels, the b portion of the first pixel 2 in the second row of pixels, the d portion of the second pixel 2 in the second row of pixels, and the c portion of the second pixel 2 in the third row of pixels. Among them, the a portion of the second pixel 2 in the first row of pixels is the portion of the smaller end of the first size of the pixel 2, the b portion of the first pixel 2 in the second row of pixels is the left side of the light-emitting area of ​​the outermost second sub-pixel 22 of the pixel 2, the d portion of the second pixel 2 in the second row of pixels is the right side of the light-emitting area of ​​the outermost second sub-pixel 22 of the pixel 2, and the c portion of the second pixel 2 in the third row of pixels is the portion of the larger end of the first size of the pixel 2.

[0128] The aforementioned pixel rows can also be arranged along the first direction X, and the pixels 2 in each pixel row can be arranged along the second direction Y. This application does not impose any restrictions on this.

[0129] In this way, the smaller end of the first size of pixel 2 in one of the two adjacent rows of pixels is located in the gap between two adjacent pixels 2 in the other row of pixels. This allows more pixels 2 to be arranged in the limited space of the display panel 100, which can make full use of the space of the display panel 100 and increase the arrangement density of pixels 2, thereby improving the luminous efficiency of the display panel 100.

[0130] In some embodiments, see Figure 2 , Figure 4 , Figure 6 In two adjacent rows of pixels, the region where the multiple second sub-pixels 22 of multiple pixels 2 in one row of pixels does not intersect with the region where the multiple second sub-pixels 22 of multiple pixels 2 in the other row of pixels in the second direction Y. That is, along the second direction Y, the end portion of the light-emitting area of ​​the multiple second sub-pixels 22 of multiple pixels 2 in one row of pixels can be located on one side of the straight line where the end portion of the light-emitting area of ​​the multiple second sub-pixels 22 of multiple pixels 2 in the other row of pixels is located, that is, the side of the straight line away from the first sub-pixel 21 in that pixel 2.

[0131] For example, Figure 2 In the middle, along the second direction Y, from bottom to top, the upper boundary of the light-emitting area of ​​multiple second sub-pixels 22 of the three pixels 2 in the first row of pixels is located below the lower boundary of the light-emitting area of ​​multiple second sub-pixels 22 of the two pixels 2 in the second row of pixels.

[0132] In this way, the regions where the multiple second sub-pixels 22 of multiple pixels 2 in one row of two adjacent pixel rows do not intersect with the regions where the multiple second sub-pixels 22 of multiple pixels 2 in the other row of pixel rows in the second direction. This allows for full utilization of the space of the display panel 100, improving the space utilization rate of the display panel 100. Furthermore, this arrangement of the pixels 2 makes it easier to control the position of each pixel 2 during fabrication, reducing complex position correction steps and thus lowering the fabrication difficulty.

[0133] In some embodiments, the first sub-pixel 21 may be a sub-pixel that emits blue light, and the plurality of second sub-pixels 22 may be one or more of the emitted light including red light and green light.

[0134] The area of ​​the first sub-pixel 21 light-emitting area can be larger than the area of ​​the second sub-pixel 22 light-emitting area. That is, the area of ​​the blue light-emitting sub-pixel (i.e., B pixel) is larger than the area of ​​the red and green light-emitting sub-pixels (i.e., R pixel and G pixel). Since the luminous efficiency of the blue light-emitting sub-pixel is relatively low, making the area of ​​the blue light-emitting sub-pixel larger can reduce its current density, thereby slowing down its decay rate and increasing the lifespan of the blue light-emitting sub-pixel, making it close to the lifespan of the red and green light-emitting sub-pixels, thereby increasing the lifespan of the display panel 100.

[0135] For example, see Figures 2-10 A portion of the plurality of second sub-pixels 22 are sub-pixels that emit red light, and the remaining second sub-pixels 22 are sub-pixels that emit green light. Alternatively, by way of example, a portion of the plurality of second sub-pixels 22 may also be sub-pixels that emit white light or other colors of light.

[0136] For example, Figure 3 In the image, the first sub-pixel 21 is a blue-emitting sub-pixel, i.e., the B pixel. Along the second direction Y, the second sub-pixel 22 closest to the first sub-pixel 21 is a red-emitting sub-pixel, i.e., the R pixel. The outermost second sub-pixel 22 is a green-emitting sub-pixel, i.e., the G pixel.

[0137] It is understood that this application only uses R sub-pixels, G sub-pixels, and B sub-pixels as examples to explain the pixel arrangement method proposed in this application. In other embodiments, R sub-pixels, G sub-pixels, and B sub-pixels can be replaced with sub-pixels of other colors as needed, and arranged using the pixel arrangement method of this application, such as cyan sub-pixels. That is, this application does not limit the color of the sub-pixels used for pixel arrangement.

[0138] The following example illustrates how a pixel 2 includes a first sub-pixel 21 and two second sub-pixels 22.

[0139] For example, see Figures 2-10 When one of the two second sub-pixels 22 in each pixel 2 emits red light and the other second sub-pixel 22 emits green light, the positions of these two second sub-pixels 22 can be swapped, for example... Figure 3 In the middle, along the second direction Y, the outermost second sub-pixel 22 of each pixel 2 is adjusted to the position of the second sub-pixel 22 that was originally close to the first sub-pixel 21, so that it is located between the second sub-pixel 22 and the first sub-pixel 21 that was originally close to the first sub-pixel 21.

[0140] For example, the aforementioned plurality of second sub-pixels 22 may also be sub-pixels that emit white light, or sub-pixels of other colors, and this application does not limit this.

[0141] For example, the material of the second sub-pixel 22 can be replaced with a narrow-band phosphorescent material of about 490nm so that the second sub-pixel 22 can emit cyan light.

[0142] In this way, by flexibly adjusting the emission color of the second sub-pixel 22, the color performance of the display panel 100 can be enriched, enabling it to meet various user needs and thereby enhancing the market competitiveness of the display panel 100.

[0143] For example, the area of ​​the light-emitting region of different second sub-pixels 22 can be designed differently according to different needs.

[0144] For example, the area of ​​the light-emitting region of the second sub-pixel 22 that emits green light can be smaller than the area of ​​the light-emitting region of the second sub-pixel 22 that emits red light.

[0145] In this way, the display panel 100 can be adapted to different user needs. For example, if a user needs a display panel 100 that emits red light, the area of ​​the light-emitting region of the second sub-pixel 22 that emits red light can be increased. This can reduce the current density of the red sub-pixel while ensuring the same target brightness, thus slowing down the aging speed of the red OLED material and meeting the stringent lifespan requirements of "red warning information needs to be bright for a long time" in vehicle warning screens, aviation head-mounted displays, or medical equipment.

[0146] For example, by adjusting the area of ​​the light-emitting area of ​​the first sub-pixel 21 in each pixel 2 and the area of ​​the light-emitting areas of the multiple second sub-pixels 22, it is possible to precisely control the display panel 100 to emit various color-shifting lights to meet diverse display needs.

[0147] For example, if the first sub-pixel 21 is a sub-pixel that emits blue light, when its light-emitting area is appropriately increased, while the light-emitting area of ​​some second sub-pixels 22 (such as red and green sub-pixels) is selectively reduced, the proportion of blue light in the overall light emission will be significantly increased due to the change in the ratio of light emission intensity of different colored sub-pixels, thus enabling the display panel 100 to emit bluish light. Conversely, if the light-emitting area of ​​the first sub-pixel 21 is reduced and the light-emitting area of ​​other second sub-pixels 22 is increased, for example, the light-emitting area of ​​the red sub-pixel is increased and the light-emitting areas of the blue and green sub-pixels are reduced, the proportion of red light in the overall light emission will increase, thereby enabling the display panel 100 to emit reddish light.

[0148] For example, see Figure 3 The area of ​​the light-emitting area of ​​the second sub-pixel 22 can be adjusted by adjusting the size d1 of the second sub-pixel 22 in the second direction Y and / or the size d2 (i.e., the first size) of the light-emitting area of ​​the second sub-pixel 22 in the first direction X.

[0149] For example, see Figure 3 The dimensions d1 of the second sub-pixel 22 in the second direction Y and the dimensions d2 of the second sub-pixel 22 in the first direction X can both be 15μm-50μm, so as to ensure that the area of ​​the light-emitting area of ​​the first sub-pixel 21 and the area of ​​the light-emitting area of ​​the second sub-pixel 22 formed therefrom are reasonable, thereby improving the luminous efficiency of the display panel 100 while improving its lifespan.

[0150] For example, see Figure 3 The size of the first sub-pixel 21 in pixel 2 can be defined by adjusting the size d1 of the light-emitting area of ​​the second sub-pixel 22 near the first sub-pixel 21 in the second direction, and / or the size d2 (i.e., the first size) of the light-emitting area of ​​the second sub-pixel 22 near the first sub-pixel 21 in the first direction. That is, the size of the first sub-pixel 21 in pixel 2 can depend on the size d1 of the light-emitting area of ​​the second sub-pixel 22 near the first sub-pixel 21 in the second direction Y, and / or the size d2 of the light-emitting area of ​​the second sub-pixel 22 near the first sub-pixel 21 in the first direction X. This allows for flexible adjustment of the relevant size of the light-emitting area of ​​the second sub-pixel 22 according to different display requirements, process conditions, etc., thereby achieving control over the size of the light-emitting area of ​​the first sub-pixel 21, and thus optimizing the overall light-emitting characteristics of pixel 2 to meet the corresponding display requirements.

[0151] In this application, each pixel 2 in the above embodiments can be prepared by vapor deposition. Figure 11 This is a schematic diagram illustrating a process for fabricating pixels in a display panel, provided in an embodiment of this application. Figure 12 This is a schematic diagram of the mask used in preparing pixels according to an embodiment of this application. Figure 13 and Figure 14 for Figure 11 A schematic diagram of the steps involved in pixel preparation.

[0152] See Figure 11 The above preparation method includes the following steps S1 to S6: Step S1: See Figure 1 A substrate S with a pixel driving circuit 6 is provided.

[0153] The substrate S is the basic structure of the display panel 100, and the pixel driving circuit 6 on it is used to control the light emission of each subsequent sub-pixel and provide driving signals for displaying images.

[0154] Step S2: See Figure 1 Hole transport layer deposited by vapor deposition.

[0155] That is, the substrate S is placed on the sample stage of the vacuum evaporation chamber, a mask is placed below the substrate S, and then the hole transport material (e.g., NPB) is placed in the evaporation source (e.g., a quartz boat). The material is then evaporated into atoms or molecules by means of resistance wire heating, electron beam heating or laser heating, and these atoms or molecules are made to move in a straight line in a vacuum environment, pass through the opening of the mask and be deposited on the surface of the substrate S to form a uniform hole transport layer film, so as to provide a uniform hole transport function for the sub-pixels that are subsequently evaporated.

[0156] Along direction Z, the aforementioned hole transport layer is located between the anode 3 and the light-emitting layer L. Figure 1 It is not shown in the middle.

[0157] Step S3: See Figure 13 The first sub-pixel 21 emits blue light through vapor deposition.

[0158] A specific mask M can be used to deposit blue light-emitting material (such as BAlq, Spiro-DPVBi, etc.) on the substrate S at the corresponding position to form the first sub-pixel 21 light-emitting area that emits blue light. It together with the corresponding pixel driving unit forms the blue light-emitting sub-pixel, namely the B pixel. At this time, the area used to deposit red light-emitting material and green light-emitting material is blocked by the mask.

[0159] The luminescent area here belongs to part of the luminescent layer L.

[0160] Step S4: See Figure 14 The luminescent area of ​​the second sub-pixel 22, which emits green light through vapor deposition.

[0161] Similarly, using a mask M, green light-emitting material (such as Alq3 host + C545T doped material) is deposited in a designated area to form the light-emitting area of ​​the second sub-pixel 22 that emits green light. It together with the corresponding pixel driving unit forms the green light-emitting sub-pixel, i.e., G pixel.

[0162] Step S5: See Figure 2 The luminescent area of ​​the second sub-pixel 22, which emits red light through vapor deposition.

[0163] That is, red light-emitting material (such as Alq3 host + DCJTB or Ir(piq)3 doped material) is deposited at the corresponding position using a mask template M to form the light-emitting area of ​​the second sub-pixel 22 that emits red light. It together with the corresponding pixel driving unit forms the red light-emitting sub-pixel, i.e., R pixel.

[0164] For example, the execution order of steps S3, S4 and S5 can be arbitrarily changed, and this application does not impose any restrictions on this.

[0165] For example, first execute step S4, then execute steps S3 and S5 in sequence.

[0166] Step S6: See Figure 1 , vaporization cathode 4 and other film layers.

[0167] Other layers may include electron transport layers, buffer layers, etc. These layers work together with hole transport layer L1, sub-pixels, etc., to optimize the luminous performance and stability of display panel 100.

[0168] Step S7: Perform encapsulation.

[0169] The display panel 100, which is about to complete steps S1 to S6, is encapsulated to isolate the internal functional layer of the display panel 1090 from moisture, oxygen and other external elements, prevent oxidation and deterioration of the functional layer material, thereby extending the service life of the display panel 100 and ensuring its long-term stable operation.

[0170] This application also provides a display device. Figure 15 This is a schematic diagram of a display device provided in an embodiment of this application.

[0171] See Figure 15 The above-mentioned display device 200 includes the display panel 100 and circuit board P in the above embodiments.

[0172] The circuit board P is electrically connected to the display panel 100 and is used to receive and process signal data from the system or other modules, convert the processed information into a format suitable for display on the display panel 100, and drive the display panel 100 to accurately present the corresponding images, text or data content.

[0173] The above-described display device 200 has the same beneficial technical effects as the display panel 100 provided in some of the above embodiments, which will not be repeated here.

[0174] The aforementioned display device 200 can be any device that displays images, whether moving (e.g., video) or fixed (e.g., still images), and whether it contains text or images. More specifically, the embodiments described are contemplated to be implemented in or associated with a variety of electronic devices, such as (but not limited to) mobile phones, wireless devices, personal data assistants (PDAs), handheld or portable computers, GPS receivers / navigators, cameras, MP4 video players, camcorders, game consoles, watches, clocks, calculators, television monitors, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controllers and / or displays, displays of camera views (e.g., displays of rearview cameras in vehicles), electronic photographs, electronic billboards or signs, projectors, architectural structures, packaging and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0175] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized in that, Includes a substrate and a plurality of pixels disposed on the substrate; The plurality of pixels are divided into multiple rows of pixels, and the plurality of pixels in each row of pixels are arranged sequentially along a first direction. The multiple rows of pixels are arranged along a second direction. In two adjacent rows of pixels, the center line of the pixels in one row of pixels is located between the center lines of two adjacent pixels in the other row of pixels. The first direction and the second direction are perpendicular to each other and are both parallel to the substrate. The center line extends along the second direction. Each pixel includes a first sub-pixel and a plurality of second sub-pixels; the light-emitting area of ​​the first sub-pixel is disposed on one side of the light-emitting area of ​​the plurality of second sub-pixels along the second direction; the light-emitting area of ​​at least one second sub-pixel is in the shape of an incomplete ring, the notch of the incomplete ring facing the light-emitting area of ​​the first sub-pixel; the light-emitting areas of the plurality of second sub-pixels are sequentially nested along the second direction; along the second direction and in the direction from the light-emitting area of ​​the first sub-pixel to the light-emitting area of ​​the second sub-pixel, the first size of the light-emitting area of ​​each second sub-pixel gradually decreases; the first size is the distance between two points of the light-emitting area of ​​the second sub-pixel disposed at both ends along the first direction; There is a gap between the two adjacent pixels; in two adjacent rows of pixels, at least a portion of the light-emitting area of ​​the first sub-pixel in one row is located within the gap between the two adjacent pixels in the other row.

2. The display panel according to claim 1, characterized in that, Among the multiple second sub-pixels that are sequentially nested, the shape of the light-emitting area of ​​the outermost second sub-pixel is an incomplete ring.

3. The display panel according to claim 2, characterized in that, Among the plurality of second sub-pixels, the light-emitting area of ​​the second sub-pixel located between the outermost second sub-pixel and the first sub-pixel is solid in shape.

4. The display panel according to claim 3, characterized in that, Among the plurality of second sub-pixels, the light-emitting area of ​​the second sub-pixel located between the outermost second sub-pixel and the first sub-pixel extends along the first direction near the boundary of the first sub-pixel; the plurality of second sub-pixels and the first sub-pixel are respectively located on both sides of the boundary.

5. The display panel according to claim 2, characterized in that, The light-emitting areas of the plurality of second sub-pixels are all arranged in an incomplete ring shape, and the gaps are all facing the light-emitting area of ​​the first sub-pixel.

6. The display panel according to any one of claims 1 to 5, characterized in that, Among the plurality of second sub-pixels, at least some of the second sub-pixels have light-emitting areas with shapes including incomplete circular rings or incomplete triangular rings.

7. The display panel according to claim 1, characterized in that, Among the plurality of second sub-pixels, the shapes of the boundaries between the light-emitting areas of two adjacent second sub-pixels are the same; The second sub-pixel, which is adjacent to the first sub-pixel, has the same shape as the boundary between the two sub-pixels.

8. The display panel according to claim 1, characterized in that, In two adjacent rows of pixels, the shape of the first sub-pixel light-emitting area in one row, away from the boundary of the plurality of second sub-pixels, is the same as at least a portion of the shape of the boundary of the outermost second sub-pixel light-emitting area of ​​two adjacent pixels in the other row.

9. The display panel according to claim 1, characterized in that, In two adjacent rows of pixels, the portion of the smaller end of a pixel in one row is located within the gap between two adjacent pixels in the other row.

10. The display panel according to claim 1, characterized in that, In two adjacent rows of pixels, the regions where the multiple second sub-pixels of multiple pixels in one row of pixels do not intersect with the regions where the multiple second sub-pixels of multiple pixels in the other row of pixels in the second direction.

11. The display panel according to claim 1, characterized in that, The luminous efficiency of the first sub-pixel is lower than that of the second sub-pixel; the area of ​​the luminous region of the first sub-pixel is larger than that of the luminous region of the second sub-pixel.

12. The display panel according to claim 1, characterized in that, The first sub-pixel is a sub-pixel that emits blue light; the light emitted by the plurality of second sub-pixels includes one or more of red and green light.

13. A display device, characterized in that, include: The display panel as described in any one of claims 1 to 12; The circuit board is electrically connected to the display panel.

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