Display panel and display apparatus

Abstract

A display panel and a display apparatus. The display panel comprises: a base substrate (BS); a plurality of subpixels (100), which are located on the base substrate (BS), each subpixel (100) comprising a light-emitting region (160); and a black matrix (200), which comprises a plurality of openings (201), one opening (201) being correspondingly provided outside the light-emitting region (160) of each subpixel (100), wherein for the same subpixel (100), the distance between the orthographic projection of the opening on the base substrate (BS) and the orthographic projection of the light-emitting region on the base substrate (BS) is an outward expansion value (K), and the outward expansion values of at least three of subpixels adjacent to the same subpixel (100) are different from the outward expansion value of the subpixel, so as to mitigate diffraction, thereby improving the display quality.

Description

Display panel and display device Technical Field

[0001] At least one embodiment of this disclosure relates to a display panel and a display device. Background Technology

[0002] With the continuous development of display technology, organic light-emitting diode (OLED) display devices have gradually become the mainstream display devices due to their advantages such as self-illumination, high color gamut, thinness, high contrast, fast response, low power consumption, and flexible display.

[0003] Traditional organic light-emitting diode (OLED) displays suffer from reflection and glare issues under ambient light. Therefore, the color filter on encapsulation (COE) technology was developed. This COE structure forms on the encapsulation layer of the OLED display, effectively absorbing and scattering ambient light, significantly reducing screen surface reflection and thus minimizing glare. Simultaneously, COE technology also improves light transmittance, resulting in a brighter, more detailed display with more accurate color reproduction. Summary of the Invention

[0004] At least one embodiment of this disclosure provides a display panel and a display device.

[0005] At least one embodiment of this disclosure provides a display panel, comprising: a substrate; a plurality of sub-pixels located on the substrate, each sub-pixel including a light-emitting area; and a black matrix including a plurality of openings, wherein an opening is correspondingly disposed outside the light-emitting area of ​​each sub-pixel, wherein at the same sub-pixel, the distance between the orthographic projection of the opening on the substrate and the orthographic projection of the light-emitting area on the substrate is an outward expansion value, and the outward expansion values ​​of at least three sub-pixels adjacent to the same sub-pixel are different from the outward expansion value of the sub-pixel.

[0006] For example, the plurality of sub-pixels form a plurality of repeating units, each repeating unit including at least one repeating sub-unit, each repeating sub-unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the emission colors of each pair of the first sub-pixel, the second sub-pixel, and the third sub-pixel are different.

[0007] For example, the expansion values ​​of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same repeating sub-unit are all different.

[0008] For example, each repeating unit includes multiple repeating sub-units, and in at least three different repeating sub-units, the outer expansion value of the first sub-pixel is different, the outer expansion value of the second sub-pixel is different, and the outer expansion value of the third sub-pixel is different.

[0009] For example, along the arrangement direction of the three different repeating sub-units, the outer expansion value of the first sub-pixel increases sequentially, the outer expansion value of the second sub-pixel increases sequentially, and the outer expansion value of the third sub-pixel increases sequentially.

[0010] For example, the outer expansion values ​​of sub-pixels in the same repeating sub-unit are the same, and the outer expansion values ​​of at least three different repeating sub-units are different.

[0011] For example, each repeating unit includes six repeating sub-units, which form a three-row, three-column matrix, in which, in the row direction, the outer expansion values ​​of three repeating sub-units in at least one row are different.

[0012] For example, in the column direction, in at least one column of repeating sub-cells, at least two different repeating sub-cells have different expansion values.

[0013] For example, in the row direction, in each of the three repeating sub-units, the expansion values ​​of the three repeating sub-units are different; in the column direction, in each of the three repeating sub-units, the expansion values ​​of at least two different repeating sub-units are different.

[0014] For example, in the column direction, in one of the three repeating sub-cells, the expansion values ​​of the three different repeating sub-cells are different.

[0015] For example, the expansion value is greater than or equal to 1 μm, and the expansion value is less than or equal to 4 μm.

[0016] For example, the plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, and the emission color of each pair of the first sub-pixels, the second sub-pixels, and the third sub-pixels is different. The display panel satisfies at least one of the following three cases where the expansion values ​​are different: at least two first sub-pixels have different expansion values, at least two second sub-pixels have different expansion values, and at least two third sub-pixels have different expansion values.

[0017] For example, the minimum interval between different expansion values ​​of multiple expansion values ​​is greater than or equal to 0.5 μm.

[0018] For example, the display panel also includes a color filter layer, an insulating layer is provided between the color filter layer and the black matrix, the color filter layer is closer to the substrate than the black matrix, and the insulating layer covers the color filter layer.

[0019] For example, at least one of the plurality of openings is non-circular, the opening of the black matrix has a major axis, the size of the opening in the direction of extension of the major axis is the maximum size of the opening, and the major axis of the opening has M orientations, where M is a positive integer greater than or equal to 2.

[0020] For example, the opening and the light-emitting area of ​​at least one sub-pixel are not concentric.

[0021] For example, the center displacement of the opening and the light-emitting area is 1.5 to 2 μm.

[0022] For example, on opposite sides of the sub-pixel, the expansion value of the same sub-pixel is different.

[0023] For example, the first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

[0024] For example, the at least three sub-pixels include three sub-pixels whose emission color is different from that of the intermediate sub-pixel they surround.

[0025] For example, the at least three sub-pixels include at least one sub-pixel that has the same emission color as the middle sub-pixel it surrounds.

[0026] For example, at least two sub-pixels emitting the same color light have different expansion values.

[0027] Embodiments of this disclosure provide a display device including any of the above-described display panels. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0029] Figure 1 is a cross-sectional view of a display panel.

[0030] Figure 2 is a plan view of a display panel.

[0031] Figure 3 is a plan view of a display panel provided in an embodiment of this disclosure.

[0032] Figure 4 is a plan view of a display panel provided in an embodiment of this disclosure.

[0033] Figure 5 shows the diffraction intensity diagrams of display panels with the same expansion value.

[0034] Figure 6 shows the diffraction intensity diagrams of display panels with different expansion values ​​provided in the embodiments of this disclosure.

[0035] Figure 7 is a cross-sectional view of a display panel provided in an embodiment of this disclosure.

[0036] Figure 8 is a plan view of a display panel provided in an embodiment of this disclosure.

[0037] Figure 9 is a plan view of a display panel provided in an embodiment of this disclosure.

[0038] Figure 10 is a plan view of a display panel provided in an embodiment of this disclosure.

[0039] Figure 11 is a plan view of a display panel provided in an embodiment of this disclosure.

[0040] Figure 12 is a plan view of a display panel provided in an embodiment of this disclosure.

[0041] Figure 13 is a plan view of a display panel provided in an embodiment of this disclosure.

[0042] Figure 14 is a plan view of a display panel provided in an embodiment of this disclosure.

[0043] Figure 15 is a plan view of a sub-pixel in a display panel provided in an embodiment of the present disclosure.

[0044] Figure 16 is a plan view of a sub-pixel in a display panel provided in an embodiment of the present disclosure.

[0045] Figure 17 illustrates the formation process of an inverted ellipse according to an embodiment of this disclosure. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0047] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “including,” “comprising,” or “containing,” and similar terms mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0048] Figure 1 is a cross-sectional view of a display panel. Figure 2 is a plan view of a display panel. The display panel shown in Figure 1 is a COE panel.

[0049] As shown in Figures 1 and 2, the display panel includes: a driving substrate 600 (including a substrate BS), the driving substrate 600 including a pixel circuit and a first electrode (e.g., the anode of a light-emitting element) connected to the pixel circuit, a light-emitting functional layer EM and a second electrode E2 (e.g., the cathode of a light-emitting element) provided on the driving substrate 600, an encapsulation layer 800 provided on the light-emitting element, a black matrix 200 and a color filter layer CF provided on the encapsulation layer 800, and a cover layer 900 covering the black matrix 200 and the color filter layer CF. As shown in Figure 1, the color filter layer CF includes color filter portion CF1, color filter portion CF2, and color filter portion CF3. Figure 1 uses the black matrix as a standalone example; in other embodiments, the black matrix may also be a color filter stack or include a color filter stack, as long as it can serve a light-blocking function.

[0050] As shown in Figures 1 and 2, the display panel includes: a plurality of sub-pixels 100, each sub-pixel 100 including a light-emitting area 160; the light-emitting area 160 corresponds to the opening OPN of the pixel boundary layer PDL and is the effective light-emitting area of ​​the sub-pixel.

[0051] As shown in Figures 1 and 2, the black matrix 200 includes multiple openings 201. Each sub-pixel 100 has an opening 201 corresponding to the light-emitting area 160. At the same sub-pixel 100, the distance between the opening 201 and the light-emitting area 160 is the outward expansion value K0. The outward expansion value K0 is the same for each sub-pixel 100.

[0052] As shown in Figure 2, the multiple sub-pixels 100 include a first sub-pixel 101, a second sub-pixel 102, and a third sub-pixel 103, and each pair of the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 emits a different color. As shown in Figure 2, in one column of sub-pixels, several first sub-pixels 101 and several second sub-pixels 102 are arranged alternately along the Y direction. In an adjacent column of sub-pixels, several third sub-pixels 103 are arranged along the Y direction. Between the two columns of third sub-pixels, there is a column of sub-pixels in which the first sub-pixels 101 and second sub-pixels 102 are arranged alternately along the Y direction.

[0053] Figure 2 shows that the display panel includes multiple repeating units 300. In the same repeating unit 300, the outer expansion value K0 of each sub-pixel 100 is the same. In different repeating units 300, the outer expansion value K0 of each sub-pixel 100 is the same.

[0054] For display panels where the expansion value K0 of each sub-pixel is the same (100), significant diffraction problems are likely to occur.

[0055] Figure 1 shows four regions: region 401, region 402, region 403, and region 404. These four regions are the main areas affecting diffraction. Region 401 corresponds to the luminescent region, region 402 corresponds to the ramp position of the pixel defining layer (PDL) at the opening OPN, region 403 corresponds to the region between the ramp top and the body of the black matrix 200, and region 404 corresponds to the region where the body of the black matrix 200 is located.

[0056] To mitigate diffraction problems and improve display quality, one embodiment of this disclosure provides a display panel. The display panel provided by the embodiment of this disclosure can significantly reduce diffraction at regions 401 and 402.

[0057] Figure 3 is a plan view of a display panel provided in an embodiment of the present disclosure. As shown in Figures 1 and 3, at the same sub-pixel 100, the distance between the orthographic projection of the opening 201 on the substrate BS and the orthographic projection of the light-emitting area 160 on the substrate BS is the outward expansion value K. The outward expansion value K of at least three sub-pixels 100 adjacent to the same sub-pixel 100 is different from the outward expansion value of the sub-pixel.

[0058] For example, in some embodiments, at the same sub-pixel 100, the distance between the orthographic projection of the opening 201 on the substrate BS and the orthographic projection of the light-emitting area 160 on the substrate BS is the outward expansion value K, and the outward expansion value K of at least two sub-pixels 100 adjacent to the same sub-pixel 100 is different from the outward expansion value of that sub-pixel.

[0059] One embodiment of this disclosure provides a display panel in which at least three of the sub-pixels 100 adjacent to the same sub-pixel 100 have an expansion value K different from the expansion value of the sub-pixel, thereby effectively reducing diffraction and improving display quality. One embodiment of this disclosure provides a display panel that can effectively reduce dark-state diffraction.

[0060] In the embodiments of this disclosure, "adjacent subpixels" means that subpixels are directly adjacent, that is, adjacent subpixels do not have other subpixels between them, i.e., the line connecting the centers of two adjacent subpixels does not pass through other subpixels. Figure 3 uses R, G, and B to label the emission colors of the subpixels. There are ten subpixels adjacent to the subpixel labeled R, ten subpixels adjacent to the subpixel labeled G, and ten subpixels adjacent to the subpixel labeled B. Of course, the emission colors of the subpixels are not limited to R, G, and B, and can be set as needed.

[0061] The outer expansion value K of at least three sub-pixels 100 adjacent to the same sub-pixel 100 is different from the outer expansion value of the sub-pixel. This means that among the middle sub-pixel and a number of peripheral sub-pixels surrounding and adjacent to the middle sub-pixel, the outer expansion value K of at least three peripheral sub-pixels is different from the outer expansion value K of the middle sub-pixel.

[0062] In one embodiment of the display panel disclosed herein, the expansion value K of each sub-pixel 100 can be randomly arranged to reduce diffraction. Of course, other forms can also be used.

[0063] For example, to facilitate manufacturing, multiple sub-pixels 100 form multiple repeating units 300. Figure 3 shows a repeating unit 300, which can be arranged along the X and Y directions to form an array.

[0064] As shown in Figure 3, each repeating unit 300 includes at least one repeating sub-unit 301. Figure 3 shows nine repeating sub-units 301 arranged in three rows and three columns.

[0065] As shown in Figure 3, each repeating sub-unit 301 in at least one repeating sub-unit 301 includes a first sub-pixel 101, a second sub-pixel 102, and a third sub-pixel 103, and the emission colors of any two of the first sub-pixel 101, second sub-pixel 102, and third sub-pixel 103 are different. The display panel provided in the embodiments of this disclosure is illustrated using an example of a repeating sub-unit 301 including three sub-pixels, but it is not limited thereto; the repeating sub-unit 301 may include other numbers of sub-pixels.

[0066] For example, as shown in Figure 3, the expansion values ​​K of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 in the same repeating sub-unit 301 are all different. Figure 3 shows three different types of repeating sub-units 301. As shown in Figure 3, the display panel includes repeating sub-units 311, 312, and 313. The repeating sub-units 311, 312, and 313 shown in Figure 3 are arranged in a permutation and combination manner.

[0067] For example, as shown in Figure 3, in the first row of repeating sub-units, repeating sub-units 311, 312, and 313 are arranged sequentially; in the second row of repeating sub-units, repeating sub-units 312, 313, and 311 are arranged sequentially; and in the third row of repeating sub-units, repeating sub-units 313, 311, and 312 are arranged sequentially. Correspondingly, it can also be described according to the column direction. As shown in Figure 3, in the first column of repeating sub-units, repeating sub-units 311, 312, and 313 are arranged sequentially; in the second column of repeating sub-units, repeating sub-units 312, 313, and 311 are arranged sequentially; and in the third column of repeating sub-units, repeating sub-units 313, 311, and 312 are arranged sequentially.

[0068] For example, the same repeating sub-unit 301 includes sub-pixel extension values ​​K that are the same.

[0069] As shown in Figure 3, for the repeating sub-unit 311, the outer expansion value K of the first sub-pixel 101 is K1, the outer expansion value K of the second sub-pixel 102 is K2, and the outer expansion value K of the third sub-pixel 103 is K3.

[0070] As shown in Figure 3, for the repeating sub-unit 312, the outer expansion value K of the first sub-pixel 101 is Ka, the outer expansion value K of the second sub-pixel 102 is Kb, and the outer expansion value K of the third sub-pixel 103 is Kc.

[0071] As shown in Figure 3, for the repeating sub-unit 313, the outer expansion value K of the first sub-pixel 101 is Ki, the outer expansion value K of the second sub-pixel 102 is Kj, and the outer expansion value K of the third sub-pixel 103 is Kk.

[0072] Tables 1 to 3 give the expansion values ​​K of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103, respectively.

[0073] As can be seen from Figure 3 and Tables 1 to 3, for sub-pixels emitting the same color light, at least three of the adjacent sub-pixels have different expansion values ​​K. For the first sub-pixel 101 at the middle position in Table 1 (expansion value K = 4μm), three of the first sub-pixels 101 adjacent to this middle position have different expansion values ​​K. For the second sub-pixel 102 at the middle position in Table 2, three of the second sub-pixels 102 have different expansion values ​​K. For the third sub-pixel 103 at the middle position in Table 3, three of the third sub-pixels 103 have different expansion values ​​K. With slight changes to the values ​​in Tables 1 to 3, more than three sub-pixels will have different expansion values ​​K.

[0074] Table 1: Outer expansion value K (μm) of the first sub-pixel 101 in the display panel shown in Figure 3

[0075] Table 2: Outward expansion value K (μm) of the second sub-pixel 102 in the display panel shown in Figure 3

[0076] Table 3: Outer expansion value K (μm) of the third sub-pixel 103 in the display panel shown in Figure 3

[0077] For example, as shown in Figure 3, each repeating unit 300 includes multiple repeating sub-units 301. To maximize the differentiation of the expansion value, in at least three different repeating sub-units 301, the expansion value K of the first sub-pixel 101 is different, the expansion value K of the second sub-pixel 102 is different, and the expansion value K of the third sub-pixel 103 is different. In each row of repeating sub-units 301 shown in Figure 3, the expansion value K of the first sub-pixel 101 is different, the expansion value K of the second sub-pixel 102 is different, and the expansion value K of the third sub-pixel 103 is different.

[0078] For example, as shown in Figure 3, in order to maximize the differentiation of the expansion value, along the arrangement direction of the three different repeating sub-units 301, the expansion value K of the first sub-pixel 101 increases sequentially, the expansion value K of the second sub-pixel 102 increases sequentially, and the expansion value K of the third sub-pixel 103 increases sequentially. In the first row repeating sub-units 301 and the first column repeating sub-units 301 shown in Figure 3, the expansion value K of the first sub-pixel 101 increases sequentially, the expansion value K of the second sub-pixel 102 increases sequentially, and the expansion value K of the third sub-pixel 103 increases sequentially.

[0079] As shown in Figure 3 and Table 1, in the repeating unit 300, the outer expansion value K of the first sub-pixel 101 includes 2μm, 3μm, and 4μm.

[0080] As shown in Figure 3 and Table 2, in the repeating unit 300, the outer expansion value K of the second sub-pixel 102 includes 4μm, 5μm, and 6μm.

[0081] As shown in Figure 3 and Table 3, in the repeating unit 300, the outer extension value K of the third sub-pixel 103 includes 3μm, 4μm, and 5μm.

[0082] For example, in some embodiments, as shown in FIG3, at least three of the sub-pixels 100 adjacent to the same sub-pixel 100 have an outer expansion value K that is different from the outer expansion value of the sub-pixel 100, and the at least three sub-pixels include three sub-pixels whose emission color is different from that of the intermediate sub-pixel they surround. That is, at least three of the at least three sub-pixels have an emission color different from that of the intermediate sub-pixel. In other words, the outer expansion value K of at least three peripheral sub-pixels that emit light of a different color than the intermediate sub-pixel is different from the outer expansion value K of the intermediate sub-pixel. Taking the third sub-pixel 103 (as the intermediate sub-pixel, located in the second row and second column of the repeating sub-unit 313 in FIG3) as an example, three of the four second sub-pixels 102 surrounding it have an outer expansion value different from that of the intermediate sub-pixel, and four of the four first sub-pixels 101 surrounding it have an outer expansion value different from that of the intermediate sub-pixel.

[0083] For example, in some embodiments, as shown in FIG3, at least three sub-pixels 100 adjacent to the same sub-pixel 100 have an outer expansion value K different from the outer expansion value of the sub-pixel, and at least one of the at least three sub-pixels 100 has the same emission color as the sub-pixel. That is, at least one sub-pixel emitting the same color light among the surrounding sub-pixels has an outer expansion value different from the middle sub-pixel. That is, the at least three sub-pixels include at least one sub-pixel with the same emission color as the middle sub-pixel it surrounds. Taking the third sub-pixel 103 (as the middle sub-pixel, located in the second row and second column of the repeating sub-unit 313 in FIG3) as an example, the third sub-pixel 103 above it and the third sub-pixel 103 below it both have different outer expansion values ​​from the middle sub-pixel.

[0084] For example, in some embodiments, as shown in FIG3, at least two sub-pixels emitting the same color light have different expansion values. Further, for example, at least three sub-pixels emitting the same color light have different expansion values. As shown in FIG3, the first sub-pixel 101 has three expansion values ​​of 2μm, 3μm, and 4μm. As shown in FIG3, the second sub-pixel 102 has three expansion values ​​of 4μm, 5μm, and 6μm. As shown in FIG3, the expansion value K of the third sub-pixel 103 includes 3μm, 4μm, and 5μm.

[0085] Figure 4 is a plan view of a display panel provided in an embodiment of the present disclosure. As shown in Figure 4, at the same sub-pixel 100, the distance between the orthographic projection of the opening 201 on the substrate BS and the orthographic projection of the light-emitting area 160 on the substrate BS is the outward expansion value K. The outward expansion value K of at least three sub-pixels 100 adjacent to the same sub-pixel 100 is different from the outward expansion value of the sub-pixel, so as to effectively reduce diffraction and improve display quality.

[0086] Table 4: Outer expansion value K (μm) of the first sub-pixel 101 / second sub-pixel 102 / third sub-pixel 103 in the display panel shown in Figure 4.

[0087] For example, as shown in Figure 4 and Table 4, the outer expansion value K of sub-pixels 100 in the same repeating sub-unit 301 is the same, while the outer expansion value K of at least three different repeating sub-units 301 is different. The repeating sub-unit 301 is used as the basic benchmark for outer expansion value variation to perform differentiated design of the outer expansion value. As shown in Figure 4, the outer expansion value K of repeating sub-unit 311 is K10, the outer expansion value K of repeating sub-unit 312 is K20, and the outer expansion value K of repeating sub-unit 313 is K30. Figure 4 uses K10 = 4μm, K20 = 5μm, and K30 = 6μm as examples.

[0088] For example, as shown in Figure 4 and Table 4, each repeating unit 300 includes six repeating sub-units 301, which form a 3x3 matrix. In the matrix, in the row direction, in at least one row of repeating sub-units 301, the expansion value K of three repeating sub-units 301 is different. Thus, in the same repeating unit 300, in at least one row of repeating sub-units 301, a differentiated design that maximizes the expansion value is achieved.

[0089] For example, as shown in Figure 4 and Table 4, in the column direction, in at least one column of repeating sub-units 301, at least two different repeating sub-units 301 have different expansion values ​​K. Thus, in at least one column of repeating sub-units 301, a differentiated design of expansion values ​​is achieved.

[0090] For example, as shown in Figure 4 and Table 4, in order to achieve differentiated design of the expansion value, in the row direction, in each row of repeating sub-units 301 of the three repeating sub-units 301, the expansion value K of the three repeating sub-units 301 is different, and in the column direction, in each column of repeating sub-units 301 of the three repeating sub-units 301, at least two different repeating sub-units 301 have different expansion values ​​K.

[0091] For example, as shown in Figure 4 and Table 4, in the column direction, in one column of repeating sub-units 301 of the three repeating sub-units 301, the expansion value K of the three different repeating sub-units 301 is different.

[0092] Tables 5 to 8 show the expansion values ​​K of multiple repeating sub-units 301 in a repeating unit 300. Similar to the case shown in Figure 4, the expansion values ​​K of the same repeating sub-unit 301 are equal. That is, in the same repeating sub-unit 301, the expansion values ​​K of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 are all the same value.

[0093] As shown in Figure 4 and Tables 5 to 8, in order to reduce diffraction and improve display quality, the expansion value K of at least three sub-pixels 100 adjacent to the same sub-pixel 100 is different from the expansion value of the sub-pixel.

[0094] As shown in Figure 4 and Tables 5 to 8, in order to reduce diffraction and improve display quality, at least three of the repeating sub-units 301 adjacent to the same repeating sub-unit 301 have different expansion values ​​K. For example, at least six of the repeating sub-units 301 adjacent to the same repeating sub-unit 301 have expansion values ​​K different from those of the repeating sub-unit 301.

[0095] Table 5: The expansion value K (μm) of the repeating sub-unit in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0096] Table 6: The expansion value K (μm) of the repeating sub-unit in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0097] Table 7: The expansion value K (μm) of the repeating sub-unit in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0098] Table 8: The expansion value K (μm) of the repeating sub-unit in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0099] Tables 9 to 12 show the expansion values ​​K of multiple repeating sub-units 301 in a repeating unit 300. Similar to the case shown in Figure 4, the expansion values ​​K of the same repeating sub-unit 301 are equal. That is, in the same repeating sub-unit 301, the expansion values ​​K of the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 are all the same value.

[0100] In the display panels shown in Tables 9 to 12, the pixel arrangement shown in Figure 4 is as follows: The expansion values ​​K of different repeating sub-units 301 are randomly arranged, and within the same repeating unit 300, there are two or more expansion values ​​K. Therefore, at least three sub-pixels adjacent to the same sub-pixel have expansion values ​​different from the expansion value of that sub-pixel. For example, the expansion values ​​K can be randomly arranged, following the laws of permutations and combinations.

[0101] The minimum interval between different expansion values ​​of multiple expansion values ​​is denoted by GAP.

[0102] Table 9: Outer expansion value K (μm) and minimum spacing GAP (GAP = 3μm) of repeating sub-units in a repeating unit of a display panel provided in an embodiment of this disclosure.

[0103] Table 10: The expansion value K (μm) and minimum spacing GAP (GAP = 0.5μm) of the repeating sub-units in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0104] Table 11: The expansion value K (μm) and minimum spacing GAP (GAP = 2μm) of the repeating sub-units in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0105] Table 12: The expansion value K (μm) and minimum spacing GAP (GAP = 2μm) of the repeating sub-units in the repeating unit of the display panel provided in an embodiment of this disclosure.

[0106] For example, as can be seen from Figures 3 and 4 and the various tables, the expansion value K is greater than or equal to 1 μm. In the display panels shown in Figures 3 and 4, the expansion value K is greater than or equal to 1 μm. Further, for example, in the display panels shown in Figures 3 and 4, the expansion value K is greater than or equal to 2 μm. The larger the expansion value K, the better it is for reducing diffraction.

[0107] For example, as can be seen from Figures 3 and 4 and the various tables, the minimum interval between different expansion values ​​of the multiple expansion values ​​K is greater than or equal to 0.5 μm. The display panels shown in Figures 3 and 4 are exemplified by a minimum interval of 1 μm between different expansion values ​​of the multiple expansion values ​​K. Further, for example, to reduce diffraction, the minimum interval between different expansion values ​​of the multiple expansion values ​​K is greater than or equal to 0.8 μm.

[0108] For example, as can be seen from Figures 3 and 4 and the various tables, the expansion value K is less than or equal to 4 μm. For example, in some embodiments, the expansion value K is greater than or equal to 1 μm and less than or equal to 4 μm.

[0109] Figure 5 shows the diffraction intensity diagrams of display panels with the same expansion value K (K = 5 μm). Figure 6 shows the diffraction intensity diagrams of display panels with different expansion values ​​K provided in the embodiments of this disclosure. As can be seen from Figures 5 and 6, the embodiments of this disclosure effectively reduce diffraction by setting different expansion values ​​K.

[0110] In the display panel provided in the embodiments of this disclosure, the larger the expansion value K, the larger the diffraction aperture and the wider the diffraction fringe spacing. The display panel has different expansion values ​​K, which effectively reduces diffraction. At the same time, a larger expansion value K can also improve color shift and reduce brightness decay (L-decay).

[0111] Figure 7 is a cross-sectional view of a display panel provided in an embodiment of this disclosure. For example, as shown in Figure 7, the display panel further includes a color filter layer CF, and an insulating layer 808 is provided between the color filter layer CF and the black matrix 200. The insulating layer 808 serves to separate the color filter layer CF and the black matrix 200. By placing the insulating layer 808 between the color filter layer CF and the black matrix 200, the overlap between the color filter layer CF and the black matrix 200 can be reduced. The expansion value K is not affected by the overlap between the color filter layer CF and the black matrix 200, which is beneficial for increasing the expansion value K. For example, the expansion value K is not affected by the approximately 4.5 μm overlap between the color filter layer CF and the black matrix 200, and the expansion value K can be increased. For example, the upper limit of the expansion value K can be increased to 8.5 μm. Thus, the expansion value K is less than or equal to 8.5 μm. This arrangement of placing the insulating layer 808 between the color filter layer CF and the black matrix 200 provides a large space for the random arrangement of the expansion value K.

[0112] For example, as shown in Figure 7, the display panel includes a substrate BS, a color filter layer CF that is closer to the substrate BS than the black matrix 200, and an insulating layer 808 that covers the color filter layer CF.

[0113] For example, the insulating layer 808 may be made of an insulating material. For example, the insulating layer 808 may be made of an organic insulating material and / or an inorganic insulating material.

[0114] Figure 7 shows a driving substrate 600. As shown in Figure 7, the driving substrate 600 includes a substrate BS and a driving circuit layer 601 located on the substrate BS. For example, the driving circuit layer 601 includes a plurality of transistors and a plurality of capacitors.

[0115] As shown in Figure 7, a plurality of first electrodes E1, separated from each other, are disposed on the driving circuit layer 601. A pixel defining layer PDL is disposed on the plurality of first electrodes E1. The pixel defining layer PDL includes a plurality of pixel openings OPN. The pixel openings OPN are used to expose at least a portion of the first electrodes E1 to define the light-emitting area. A light-emitting functional layer EM is disposed on the plurality of first electrodes E1. A second electrode E2 is disposed on the light-emitting functional layer EM. An encapsulation layer 800 is disposed on the second electrode E2. A buffer layer 805 is disposed on the encapsulation layer 800. A touch structure TM is disposed on the buffer layer 805. An insulating layer 807 is disposed on the touch structure TM. As shown in Figure 7, the touch structure TM includes a first touch line TM1 and a second touch line TM2. The first touch line TM1 includes a first touch portion TM11 and a second touch portion TM12. An interlayer insulating layer 806 is disposed between the first touch portion TM11 and the second touch portion TM12. A color filter layer CF is disposed on the interlayer insulating layer 806. An insulating layer 808 is disposed on the color filter layer CF. A black matrix 200 is disposed on the insulating layer 808. The color filter layer (CF) and the light-emitting functional layer (EM) can be found in the previous descriptions and will not be repeated here.

[0116] As shown in Figure 7, the insulating layer 807 covers the touch structure TM to provide protection. The structure of the touch structure TM is not limited to that shown in this figure.

[0117] As shown in Figure 7, the height of the insulating layer 807 is less than the height of the color filter layer CF. The top surface of the insulating layer 807 is closer to the substrate BS than the top surface of the color filter layer CF.

[0118] For example, the first electrode E1, the second electrode E2, and the light-emitting functional layer EM located between them constitute a light-emitting element.

[0119] For example, the first electrode E1 is the anode and the second electrode E2 is the cathode.

[0120] Figure 8 is a plan view of a display panel provided in an embodiment of this disclosure. As shown in Figure 8, the repeating unit 300 includes a plurality of repeating sub-units 301. Each repeating sub-unit 301 includes a first sub-pixel 101, two second sub-pixels 102, and a third sub-pixel 103, and the light emission colors of every two of the first sub-pixels 101, second sub-pixels 102, and third sub-pixels 103 are different. As shown in Figure 8, the repeating sub-units 301 are arranged in an array along the X and Y directions. In the display panels shown in Figures 3 and 4, each repeating sub-unit 301 includes a first sub-pixel 101, a second sub-pixel 102, and a third sub-pixel 103.

[0121] For example, as shown in Figure 8, the shape of the light-emitting area 160 of the sub-pixel is circular, and the shape of the opening 201 of the black matrix is ​​also circular. In some sub-pixels, the opening 201 of the black matrix and the light-emitting area 160 are concentric, while in other sub-pixels, the opening 201 of the black matrix and the light-emitting area 160 are not concentric; that is, the center of the opening 201 of the black matrix and the center of the light-emitting area 160 do not coincide, and there is a certain distance between them. Of course, the shape of the light-emitting area 160 of at least one sub-pixel shown in Figure 8 may not be circular, but rather an inverted ellipse, and the shape of at least one opening 201 of the black matrix may not be circular, but rather an inverted ellipse. For example, the shapes of the light-emitting area of ​​the sub-pixel and at least one opening 201 of the black matrix may also be polygonal, elliptical, etc., and this application does not limit them.

[0122] As shown in Figure 8, the multiple sub-pixels 100 include a first sub-pixel 101, a second sub-pixel 102, and a third sub-pixel 103, and each pair of the first sub-pixel 101, second sub-pixel 102, and third sub-pixel 103 emits a different color. As shown in Figure 8, in one row of sub-pixels, several first sub-pixels 101 and several third sub-pixels 103 are arranged alternately along the X direction. In an adjacent row of sub-pixels, several second sub-pixels 10 are arranged along the X direction. Between the two rows of second sub-pixels, there is a sub-pixel column with several first sub-pixels 101 and several third sub-pixels 103 arranged alternately.

[0123] Tables 13 to 15 show the cases of the outward expansion value K of the sub-pixels in the pixel arrangement shown in Figure 8.

[0124] Table 13: Outward expansion value K (μm) of sub-pixels in the display panel shown in Figure 8

[0125] Table 14: Outward expansion value K (μm) of subpixels in the display panel with the pixel arrangement shown in Figure 8.

[0126] Table 15: Outward expansion value K (μm) of subpixels in the display panel with the pixel arrangement shown in Figure 8.

[0127] In Tables 13 to 15, the numbers without a label are green subpixels (second subpixel 102), those labeled R are red subpixels (first subpixel 101), and those labeled B are blue subpixels (third subpixel 103).

[0128] As can be seen from Tables 13 to 15, at least three of the sub-pixels 100 adjacent to the same sub-pixel 100 have an outer expansion value K that is different from the outer expansion value of the sub-pixel, so as to effectively reduce diffraction and improve display quality.

[0129] For the display panel with the pixel arrangement shown in Figure 8, as shown in Table 15, for green sub-pixels, the outer expansion values ​​of adjacent rows of sub-pixels can be set to the same arrangement. As shown in Table 15, the outer expansion values ​​of the two green sub-pixels (second sub-pixel 102) in the same repeating sub-unit are the same.

[0130] Table 16 shows the pixel arrangement in a display panel according to an embodiment of this disclosure. In this pixel arrangement, two rows and four columns, totaling eight sub-pixels, are arranged as a repeating sub-unit. Based on these repeating sub-units, 2×2, 4×4, 8×8, or 16×16 arrays can be formed. The expansion values ​​of the sub-pixels in each array can be randomly arranged. For example, the expansion value K can be between 1.5 and 5 μm, and the minimum interval between different expansion values ​​K can be 0.5 μm. Table 16 shows a 4×3 array. Table 17 shows a 2×2 array. Table 17 includes 8 R, 8 B, and 16 G pixels, with a minimum interval of 0.5 μm. If the expansion value K increases sequentially with the minimum interval, then the value obtained by subtracting the minimum value of the expansion value K from the maximum value of the expansion value K, and then dividing by the number of R or B minus one, is the minimum interval GAP = (amax - amin) / (N-1), where N is the number of R or B, amax is the maximum value of the expansion value K, and amin is the minimum value of the expansion value K.

[0131] Table 17 shows the expansion values ​​of subpixels in the display panel with the pixel arrangement shown in Table 16. As can be seen from Table 17, at least three subpixels 100 adjacent to the same subpixel 100 have expansion values ​​K different from the expansion value of that subpixel. Differentiating the expansion values ​​of subpixels of different colors can effectively reduce diffraction and improve display quality.

[0132] Table 16: Pixel Arrangement in a Display Panel Provided in an Embodiment of this Disclosure

[0133] Table 17: Outer pixel values ​​(μm) of subpixels in the display panel with the pixel arrangement shown in Table 16.

[0134] Table 18 shows the expansion values ​​of subpixels in the display panel with the pixel arrangement shown in Table 16. As shown in Table 18, the subpixel array arrangement, with the expansion value K of the subpixels randomly distributed, can form a 4×4 array, a 6×6 array, or an 8×8 array, and of course, other arrays can also be formed.

[0135] As shown in Table 18, the values ​​of the sub-pixel expansion value K, from smallest to largest, are 1.5, 1.7, 1.9, 2.1, 2.3, 2.5, 2.7, 2.9, 3.1, 3.3, 3.5, 3.7, 3.9, 4.1, 4.3, 4.5, 4.7, and 4.9. Therefore, the minimum interval between different expansion values ​​of the multiple expansion values ​​K is 0.2 μm.

[0136] Table 18: Outer pixel values ​​(μm) of subpixels in the display panel with the pixel arrangement shown in Table 16.

[0137] Table 19 shows the expansion values ​​of subpixels in the display panel with the pixel arrangement shown in Table 16. As shown in Table 19, the subpixels are arranged in an array. The number of subpixels in a repeating sub-unit is an integer multiple of the minimum interval between different expansion values ​​K. As shown in Table 19, the expansion value K is 2.5μm to 5μm, and the minimum interval between different expansion values ​​K is 0.5μm. Each color subpixel can have six values ​​(expansion value K), that is, 6 values ​​per cycle. There are three colors, that is, 18 subpixels, which can be cycled 3 times. Table 19 shows one repeating unit.

[0138] For example, in some other embodiments, based on the pixel arrangement shown in Table 17, the expansion value K is 1.5μm to 5μm, the minimum interval between different expansion values ​​of the multiple expansion values ​​K is 0.5μm, 8 values ​​per cycle, a total of 32 pixels, and can cycle 4 times. That is, the repeating unit is a 2×2 array.

[0139] Table 19: Outer pixel values ​​(μm) of subpixels in the display panel with the pixel arrangement shown in Table 16.

[0140] In Tables 17 and 19, the subpixels without labels are green (second subpixel 102), those labeled R are red (first subpixel 101), and those labeled B are blue (third subpixel 103).

[0141] Figure 9 is a plan view of a display panel provided according to an embodiment of the present disclosure. The outward expansion value K in the display panel shown in Figure 9 can be randomly arranged. As shown in Figure 9, the light-emitting area 160 of some sub-pixels is non-circular. For example, the non-circular shape includes an ellipse or an inverted ellipse, but is not limited thereto.

[0142] For example, as shown in Figure 9, at least one of the multiple openings 201 is non-circular in shape. The opening 201 of the black matrix has a major axis A1. The dimension of the opening 201 in the extension direction of the major axis A1 is the maximum dimension of the opening 201. The major axis A1 of the opening 201 has M orientations, where M is a positive integer greater than or equal to 2.

[0143] The aforementioned orientation refers to the direction in which the extension of the major axis A1 points in space. For example, the X and Y directions in the display panel can be used as a reference. Different orientations refer to different angles with the X or Y directions.

[0144] In the display panel provided in this embodiment, by making the major axis A1 include M orientations, the multiple openings of the black matrix can have different orientations, which can disrupt stable interference between sub-pixels. This arrangement allows the diffraction patterns to be different from each other, and when the diffraction patterns mix, they can be blurred with less constructive interference (blurring the color separation aperture). Because the major axis A1 of the multiple openings of the black matrix includes M orientations and can be arranged at various angles, the orientation of the diffraction patterns also changes, causing the diffraction patterns to mix and blur each other, thereby resulting in a scattering effect, reducing diffraction, and improving display quality.

[0145] As shown in Figure 9, the pixel arrangement of the display panel is described as follows: In one column of subpixels, several first subpixels 101 and several third subpixels 103 are arranged alternately along the Y direction; in an adjacent column of subpixels, several second subpixels 102 are arranged along the Y direction. Between the two columns of second subpixels, there is a subpixel column in which several first subpixels 101 and several third subpixels 103 are arranged alternately.

[0146] Figure 10 is a plan view of a display panel provided according to an embodiment of the present disclosure. In some embodiments, as shown in Figure 10, the outward expansion value K of each sub-pixel can be the same, but the major axis A1 of the opening 201 can have M orientations. Of course, both can be combined, that is, the outward expansion value K of the sub-pixels can be different and the major axis A1 of the opening 201 can have M orientations, and the different outward expansion values ​​K can be any of the above-mentioned methods. For example, the value range of the outward expansion value K is 2-5 μm, but it is not limited to this. In one embodiment, the outward expansion value K = 5 μm.

[0147] Figure 11 is a plan view of a display panel provided in an embodiment of this disclosure. In Figure 11, the major axis A1 of the opening 201 has M orientations, where M is a positive integer greater than or equal to 2. For example, a repeating unit has 18 first sub-pixels 101(R) and 18 third sub-pixels 103(B), and 36 second sub-pixels 102(G). The rotation interval is 20°, which is 360° divided by 18. Of course, repeating units with other numbers of sub-pixels and other rotation methods can also be used.

[0148] Figure 12 is a plan view of a display panel provided in an embodiment of the present disclosure. Figure 13 is a plan view of a display panel provided in an embodiment of the present disclosure. As shown in Figures 12 and 13, the first sub-pixel 101, the second sub-pixel 102, and the third sub-pixel 103 are all inverted elliptical shapes.

[0149] As shown in Figure 12, different sub-pixels have different expansion values ​​K. For the inverted ellipse, similar to the circle, the expansion value K is the distance between the orthographic projection of the opening of the black matrix onto the substrate and the orthographic projection of the light-emitting area of ​​the sub-pixel onto the substrate. For example, the same sub-pixel can have the same expansion value K in all locations, but is not limited to this.

[0150] As shown in Figure 13, based on the different outward expansion values ​​K of different sub-pixels, the major axis A1 of the opening 201 has M orientations, where M is a positive integer greater than or equal to 2. The major axis A1 shown in Figure 13 has two orientations: one at a 45-degree angle to direction X, and the other at a 135-degree angle to direction X. For example, the opening 201 and the light-emitting area 160 can be ellipses or circles with different eccentricities. Using the four sub-pixels labeled with the major axis A1 as shown in Figure 13 as a repeating sub-unit, a 2×2 array or a 4×4 array can be formed as a repeating unit.

[0151] Figure 14 is a plan view of a display panel provided in an embodiment of the present disclosure. Figure 15 is a plan view of sub-pixels in a display panel provided in an embodiment of the present disclosure. Figure 16 is a plan view of sub-pixels in a display panel provided in an embodiment of the present disclosure. In Figure 15, the light-emitting area 160 is an inverted ellipse, and the opening 201 of the black matrix is ​​circular. In Figure 16, the light-emitting area 160 is circular, and the opening 201 of the black matrix is ​​an inverted ellipse. Of course, in other embodiments, the light-emitting area 160 and the opening 201 of the black matrix can be the same shape, for example, both can be circular, or both can be inverted ellipses. In some embodiments, the light-emitting area 160 in a sub-pixel of one color can be one shape, and the light-emitting area 160 in sub-pixels of other colors can be another shape. In some embodiments, the opening 201 in a sub-pixel of one color can be one shape, and the opening 201 in sub-pixels of other colors can be another shape.

[0152] For example, as shown in Figures 14 to 16, the opening 201 of at least one sub-pixel 100 and the light-emitting area 160 are not concentric.

[0153] For example, as shown in Figures 14 to 16, the center displacement of the opening 201 and the light-emitting area 160 is 1.5–2 μm. Figures 14 and 15 show the major axis A1 of the opening 201. Figures 14 and 15 show the center displacement D1 of the opening 201 and the light-emitting area 160.

[0154] For example, as shown in Figures 14 to 16, the outward expansion value K of the same sub-pixel 100 is different on opposite sides. As shown in Figures 14 and 15, the outward expansion value K on the left side of the sub-pixel is distance D2, and the outward expansion value K on the right side of the sub-pixel is distance D3. Distance D2 is not equal to distance D3. For example, distance D2 is 1.5–2 μm, and distance D3 is 5–10 μm.

[0155] For example, the first sub-pixel 101 is a red sub-pixel, the second sub-pixel 102 is a green sub-pixel, and the third sub-pixel 103 is a blue sub-pixel.

[0156] Figure 17 illustrates the formation process of an inverted ellipse according to an embodiment of this disclosure. As shown in Figure 17, the inverted ellipse in this embodiment refers to the shape formed by chamfering, for example, rounding, the edge of the circle 10, i.e., after cutting off a crescent shape 20 from the circle 10. The radius of curvature of the chamfered edge 12 will increase.

[0157] In the display panel provided by the embodiments of this disclosure, the display panel satisfies at least one of the following three conditions regarding different expansion values: at least two first sub-pixels 101 have different expansion values, at least two second sub-pixels 102 have different expansion values, and at least two third sub-pixels 103 have different expansion values. That is, at least two sub-pixels emitting the same color light have different expansion values. This setting can reduce diffraction and improve display quality. This setting can be seen from Figures 3, 4, and 9 above and the tables with expansion values.

[0158] The accompanying drawings of embodiments of this disclosure illustrate directions X and Y, both of which are parallel to the main surface of the substrate. The main surface of the substrate is the surface used to fabricate various components. Directions X and Y intersect. Further, for example, direction X is perpendicular to direction Y. Direction Z is perpendicular to the main surface of the substrate. Direction Z is perpendicular to both direction X and direction Y.

[0159] Embodiments of this disclosure provide a display device including any of the display panels described above. The display device provided in the embodiments of this disclosure can be a medium to large-sized display device, but is not limited thereto.

[0160] For example, the aforementioned display devices can be electronic products with display functions such as televisions, computer monitors, laptops, tablets, mobile phones, navigation devices, and in-vehicle displays.

[0161] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display panel, comprising: Substrate; Multiple sub-pixels are located on the substrate, and each sub-pixel includes a light-emitting area; as well as The black matrix includes multiple openings, with one opening corresponding to the outer edge of the light-emitting area of ​​each sub-pixel. Wherein, at the same sub-pixel, the distance between the orthographic projection of the opening on the substrate and the orthographic projection of the light-emitting area on the substrate is the outward expansion value. At least three sub-pixels adjacent to the same sub-pixel have an expansion value that is different from the expansion value of that sub-pixel.

2. The display panel according to claim 1, wherein, The plurality of sub-pixels form a plurality of repeating units, each repeating unit including at least one repeating sub-unit, each repeating sub-unit including a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the emission colors of any two of the first sub-pixel, the second sub-pixel, and the third sub-pixel are different.

3. The display panel according to claim 2, wherein, The expansion values ​​of the first sub-pixel, the second sub-pixel, and the third sub-pixel in the same repeating sub-unit are all different.

4. The display panel according to claim 2 or 3, wherein, Each repeating unit includes multiple repeating sub-units, in which the outer expansion value of the first sub-pixel is different, the outer expansion value of the second sub-pixel is different, and the outer expansion value of the third sub-pixel is different.

5. The display panel according to any one of claims 2-4, wherein, Along the arrangement direction of the three different repeating sub-units, the outer expansion value of the first sub-pixel increases sequentially, the outer expansion value of the second sub-pixel increases sequentially, and the outer expansion value of the third sub-pixel increases sequentially.

6. The display panel according to claim 2, wherein, The sub-pixels in the same repeating sub-unit have the same expansion value, and the expansion values ​​of at least three different repeating sub-units are different.

7. The display panel according to claim 6, wherein, Each repeating unit comprises six repeating sub-units, which form a 3x3 matrix, wherein, in the row direction, in at least one row of repeating sub-units, the expansion values ​​of three repeating sub-units are different.

8. The display panel according to claim 7, wherein, In the column direction, in at least one column of repeating sub-cells, at least two different repeating sub-cells have different expansion values.

9. The display panel according to claim 8, wherein, In the row direction, in each of the three repeating sub-units, the expansion values ​​of the three repeating sub-units are different. In the column direction, in each of the three repeating sub-units, the expansion values ​​of at least two different repeating sub-units are different.

10. The display panel according to claim 9, wherein, In the column direction, in one of the three repeating sub-cells, the expansion values ​​of the three different repeating sub-cells are different.

11. The display panel according to any one of claims 1-10, wherein, The expansion value is greater than or equal to 1 μm, and the expansion value is less than or equal to 4 μm.

12. The display panel according to claim 1, wherein, The plurality of sub-pixels includes a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, wherein the emission color of each pair of the first sub-pixels, the second sub-pixels, and the third sub-pixels is different, and the display panel satisfies at least one of the following three cases where the expansion values ​​are different: at least two first sub-pixels have different expansion values, at least two second sub-pixels have different expansion values, and at least two third sub-pixels have different expansion values.

13. The display panel according to any one of claims 1-12, wherein, The minimum interval between different expansion values ​​is greater than or equal to 0.5 μm.

14. The display panel according to any one of claims 1-13, further comprising a color filter layer, wherein, An insulating layer is provided between the color filter layer and the black matrix, the color filter layer being closer to the substrate than the black matrix, and the insulating layer covering the color filter layer.

15. The display panel according to any one of claims 1-14, wherein, At least one of the plurality of openings is non-circular in shape, the opening of the black matrix has a major axis, the size of the opening in the direction of extension of the major axis is the maximum size of the opening, and the major axis of the opening has M orientations, where M is a positive integer greater than or equal to 2.

16. The display panel according to claim 15, wherein, At least one sub-pixel's opening and light-emitting area are not concentric.

17. The display panel according to claim 15 or 16, wherein, The center displacement of the opening and the light-emitting area is 1.5 to 2 μm.

18. The display panel according to any one of claims 15-17, wherein, On opposite sides of the sub-pixel, the expansion value of the same sub-pixel is different.

19. The display panel according to any one of claims 2-10, wherein, The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel.

20. The display panel according to any one of claims 1-19, wherein, The at least three sub-pixels include three sub-pixels whose emission color is different from that of the intermediate sub-pixel surrounding them.

21. The display panel according to any one of claims 1-20, wherein, The at least three sub-pixels include at least one sub-pixel that has the same emission color as the intermediate sub-pixel it surrounds.

22. The display panel according to any one of claims 1-21, wherein, Among sub-pixels emitting the same color light, at least two sub-pixels have different expansion values.

23. A display device comprising a display panel according to any one of claims 1-22.

Images