Display panel and display device

Abstract

The present disclosure relates to the technical field of display, and provides a display panel and a display device. The display panel of the present disclosure comprises a pixel defining layer and a black matrix layer. The pixel defining layer comprises multiple pixel openings; the black matrix layer comprises multiple black matrix openings; the orthographic projection of each pixel opening on a base substrate forms a first contour pattern, the orthographic projection of each black matrix opening on the base substrate forms a second contour pattern, and at least one of the first contour pattern and the second contour pattern has different curvatures at some points; the first contour pattern comprises multiple first connecting segments connected end to end in sequence; the second contour pattern comprises multiple second connecting segments connected end to end in sequence; for two adjacent first connecting segments, at least one point in one segment has a curvature different from that of at least one point in the other; or for two adjacent second connecting segments, at least one point in one segment has a curvature different from that of at least one point in the other.

Description

Display panel and display device Technical Field

[0001] This disclosure belongs to the field of display technology, specifically relating to a display panel and a display device. Background Technology

[0002] Color Filter on Encapsulation (COE) technology, also known as polarizer-free technology, involves creating an extremely thin, high-transmittance, low-reflection film (i.e., a color filter) on the outside of the encapsulation layer to correspond to the sub-pixels. A black matrix is ​​formed in the gaps between the sub-pixels to effectively absorb light, thereby improving display transmittance while reducing ambient light reflection. However, due to the structural characteristics of the black matrix and color filter in the COE process, current COE display products exhibit strong diffraction. Summary of the Invention

[0003] This disclosure aims to at least solve one of the technical problems existing in the prior art, and to provide a display panel and a display device.

[0004] In a first aspect, the technical solution adopted to solve the technical problem of this disclosure is a display panel, including a substrate, a pixel defining layer and a plurality of sub-pixels disposed on the substrate, and a black matrix layer disposed on the side of the plurality of sub-pixels facing away from the substrate and a color filter disposed corresponding to the sub-pixels; the pixel defining layer includes a plurality of pixel openings, the pixel openings being used to define the sub-pixels; the black matrix layer has a plurality of black matrix openings, the black matrix openings being used to define the color filter;

[0005] The orthographic projection of the pixel opening onto the substrate is a first contour pattern, and the orthographic projection of the black matrix opening onto the substrate is a second contour pattern; at least one of the first contour pattern and the second contour pattern has different curvatures at some points.

[0006] The first contour pattern includes multiple first splicing segments connected end to end; the second contour pattern includes multiple second splicing segments connected end to end; for two adjacent first splicing segments, at least one point in one segment has a different curvature from at least one point in the other segment; or, for two adjacent second splicing segments, at least one point in one segment has a different curvature from at least one point in the other segment.

[0007] In some embodiments, the multiple first splicing segments include multiple arc segments, or at least one arc segment and a straight line segment; the multiple second splicing segments include multiple arc segments, or at least one arc segment and a straight line segment; the arc segment is a circular arc or an elliptical arc.

[0008] In some embodiments, the multiple arc segments are two segments; one arc segment is a semicircular arc and the other arc segment is a semielliptical arc; the semicircular arc and the semielliptical arc are tangent at their intersection point.

[0009] In some embodiments, the multiple arc segments are four segments, namely the first segment, the second segment, the third segment, and the fourth segment connected end to end;

[0010] The first segment and the third segment are the same, and both are circular arcs; the second segment and the fourth segment are the same, and both are elliptical arcs; the intersection points of the two ends of the first segment with the second segment and the fourth segment are the tangent points of the circular arc and the elliptical arc; the intersection points of the two ends of the third segment with the second segment and the fourth segment are the tangent points of the circular arc and the elliptical arc.

[0011] In some embodiments, the multiple arc segments are four segments, which are the intersecting arc segments after the third ellipse and the fourth ellipse intersect.

[0012] In some embodiments, the third ellipse and the fourth ellipse are identical, and when the third ellipse and the fourth ellipse intersect, their centers intersect, and their major axes are perpendicular to each other.

[0013] In some embodiments, the arc segment is a segment and is an elliptical arc; the straight line segment is a segment; the extension direction of the straight line segment is the same as the extension direction of the minor axis of the fifth ellipse after the elliptical arc is restored, and the straight line segment is located between the center of the fifth ellipse and the vertex of the semi-major axis.

[0014] In some embodiments, the multiple arc segments are the combined arc segments of the sixth ellipse and the seventh ellipse.

[0015] In some embodiments, the sixth ellipse and the seventh ellipse are internally tangent at a point.

[0016] In some embodiments, the sixth ellipse and the seventh ellipse are identical, and when the sixth ellipse and the seventh ellipse are combined, their centers intersect, and their major axes are perpendicular to each other.

[0017] In some embodiments, the multiple arc segments are four segments, namely the fifth segment, the sixth segment, the seventh segment, and the eighth segment connected end to end;

[0018] The fifth and sixth segments are identical and are both elliptical arcs; the seventh and eighth segments are identical and are both elliptical arcs; the intersection points of the two ends of the fifth segment with the seventh and eighth segments are the tangent points of the elliptical arcs; the intersection points of the two ends of the sixth segment with the seventh and eighth segments are the tangent points of the elliptical arcs.

[0019] In some embodiments, the first contour pattern or the second contour pattern corresponding to adjacent sub-pixels have a certain angle between their respective length directions.

[0020] In some embodiments, the display panel includes multiple groups of pixel units, each group of pixel units includes multiple pixel units, and each pixel unit includes multiple sub-pixels of different colors;

[0021] For at least one of the plurality of pixel unit groups, a plurality of sub-pixel groups are divided along its diagonal direction, and a plurality of sub-pixels are arranged side by side in the diagonal direction in each sub-pixel group;

[0022] For any of the sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the diagonal direction is the same;

[0023] For two adjacent sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the diagonal direction of one group is different from the rotation angle difference between any two adjacent sub-pixels in the diagonal direction of the other group.

[0024] In some embodiments, the display panel includes multiple groups of pixel units, each group of pixel units includes multiple pixel units, and each pixel unit includes multiple sub-pixels of different colors;

[0025] For at least one of the multiple pixel unit groups, according to its surrounding direction, it is divided into multiple nested sub-pixel groups, and each sub-pixel group has multiple sub-pixels evenly arranged in the surrounding direction;

[0026] For any given sub-pixel group, the rotation angle difference between any two adjacent sub-pixels in the surrounding direction is the same;

[0027] For two adjacent sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the circumferential direction of one group is different from the rotation angle difference between any two adjacent sub-pixels in the circumferential direction of the other group.

[0028] Secondly, embodiments of this disclosure also provide a display device, which includes a display panel as described in any one of the first aspects. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the structure of the display panel provided in an embodiment of this disclosure.

[0030] Figure 2a is a schematic diagram of the pixel opening and the black matrix opening in Example 1 provided by the embodiments of this disclosure.

[0031] Figure 2b is a schematic diagram of the pixel opening and the black matrix opening in Example 2 provided in the embodiments of this disclosure.

[0032] Figure 3 is a schematic diagram of a pixel opening or black matrix opening under a patterned design provided in an embodiment of this disclosure.

[0033] Figure 4 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in an embodiment of this disclosure.

[0034] Figure 5 is a schematic diagram of the pixel opening and the black matrix opening in Example 3 provided in the embodiments of this disclosure.

[0035] Figure 6 is a schematic diagram of the pixel opening and the black matrix opening in Example 4 provided in the embodiments of this disclosure.

[0036] Figure 7 is a schematic diagram of the pixel opening and the black matrix opening in Example 5 provided in the embodiments of this disclosure.

[0037] Figure 8 is a schematic diagram of the pixel opening and the black matrix opening in Example 6 provided in the embodiments of this disclosure.

[0038] Figure 9 is a schematic diagram of the pixel opening and the black matrix opening in Example 7 provided in the embodiments of this disclosure.

[0039] Figure 10 is a schematic diagram of the pixel opening and the black matrix opening in Example 8 provided in the embodiments of this disclosure.

[0040] Figure 11 is a schematic diagram of the pixel opening and the black matrix opening in Example 9 provided in the embodiments of this disclosure.

[0041] Figure 12 is a schematic diagram of the pixel opening and the black matrix opening in Example 10 provided in the embodiments of this disclosure.

[0042] Figure 13 is a schematic diagram of the pixel opening and the black matrix opening in Example 11 provided in the embodiments of this disclosure.

[0043] Figure 14 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in an embodiment of this disclosure.

[0044] Figure 15 is a schematic diagram of the pixel opening and the black matrix opening in Example 12 provided in the embodiments of this disclosure.

[0045] Figure 16 is a schematic diagram of the pixel opening and the black matrix opening in Example 13 provided in the embodiments of this disclosure.

[0046] Figure 17 is a schematic diagram of the pixel opening and the black matrix opening in Example 14 provided in the embodiments of this disclosure.

[0047] Figures 18a to 18c are schematic diagrams of pixel openings or black matrix openings under another patterned design provided in the embodiments of this disclosure.

[0048] Figure 19a is a schematic diagram of the pixel opening and the black matrix opening in Example 15 provided in the embodiments of this disclosure.

[0049] Figure 19b is a schematic diagram of the pixel opening and black matrix opening of Example 16 provided in the embodiments of this disclosure.

[0050] Figure 19c is a schematic diagram of the pixel opening and the black matrix opening of Example 17 provided in the embodiments of this disclosure.

[0051] Figure 19d is a schematic diagram of the pixel opening and the black matrix opening in Example 18 provided in the embodiments of this disclosure.

[0052] Figure 19e is a schematic diagram of the pixel opening and the black matrix opening of Example 19 provided in the embodiments of this disclosure.

[0053] Figure 20a is a schematic diagram of the pixel opening and the black matrix opening in Example 20 provided in the embodiments of this disclosure.

[0054] Figure 20b is a schematic diagram of the pixel opening and the black matrix opening of Example 21 provided in the embodiments of this disclosure.

[0055] Figure 20c is a schematic diagram of the pixel opening and the black matrix opening under Example 22 provided in the embodiments of this disclosure.

[0056] Figures 21a to 21f are schematic diagrams of pixel openings or black matrix openings under another patterned design provided in the embodiments of this disclosure.

[0057] Figure 22 is a schematic diagram of the pixel opening and the black matrix opening in Example 23 provided in the embodiments of this disclosure.

[0058] Figure 23 is a schematic diagram of the pixel opening and the black matrix opening in Example 24 provided in the embodiments of this disclosure.

[0059] Figure 24 is a schematic diagram of the pixel opening and the black matrix opening in Example 25 provided in the embodiments of this disclosure.

[0060] Figure 25 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in an embodiment of this disclosure.

[0061] Figure 26 is a schematic diagram of the pixel opening and the black matrix opening in Example 26 provided in the embodiments of this disclosure.

[0062] Figure 27 is a schematic diagram of the pixel opening and the black matrix opening in Example 27 provided in the embodiments of this disclosure.

[0063] Figure 28a is a schematic diagram of the pixel opening and the black matrix opening in Example 28 provided in the embodiments of this disclosure.

[0064] Figure 28b is a schematic diagram of the pixel opening and the black matrix opening in Example 29 provided in the embodiments of this disclosure.

[0065] Figure 28c is a schematic diagram of the pixel opening and the black matrix opening in Example 30 provided in the embodiments of this disclosure.

[0066] Figure 28d is a schematic diagram of the pixel opening and the black matrix opening in Example 31 provided in the embodiments of this disclosure.

[0067] Figure 29a is a schematic diagram of the pixel opening and the black matrix opening in Example 32 provided in the embodiments of this disclosure.

[0068] Figure 29b is a schematic diagram of the pixel opening and the black matrix opening in Example 33 provided in the embodiments of this disclosure.

[0069] Figure 30 is a schematic diagram of a sub-pixel arrangement provided in an embodiment of this disclosure.

[0070] Figure 31 is a schematic diagram of another sub-pixel arrangement provided in an embodiment of this disclosure.

[0071] Figure 32 is a diffraction simulation diagram of the "capsule" pattern provided in the embodiments of this disclosure.

[0072] Figure 33 is a diffraction simulation diagram of the "round square" pattern provided in the embodiments of this disclosure.

[0073] Figure 34 is a diffraction simulation diagram of the elliptical pattern provided in the embodiments of this disclosure.

[0074] Figure 35 is a diffraction simulation diagram of a circular pattern provided in an embodiment of this disclosure. Detailed Implementation

[0075] 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 embodiments of this disclosure, and not all embodiments.

[0076] 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.

[0077] Figure 1 is a schematic diagram of the structure of the display panel provided in the embodiment of this disclosure, Figure 2a is a schematic diagram of the pixel opening and the black matrix opening in Example 1 provided in the embodiment of this disclosure, and Figure 2b is a schematic diagram of the pixel opening and the black matrix opening in Example 2 provided in the embodiment of this disclosure.

[0078] Specifically, as shown in Figures 1 and 2, the display panel includes a substrate 1, a pixel defining layer (PDL) and multiple sub-pixels 2 disposed on the substrate 1, and a black matrix layer (BM) disposed on the side of the multiple sub-pixels 2 facing away from the substrate 1 and a color filter (CF) disposed corresponding to the sub-pixels 2. The pixel defining layer (PDL) includes multiple pixel openings (V1), which define the sub-pixels 2, i.e., the pixel openings (V1) correspond to the light-emitting areas of the sub-pixels 2. The black matrix layer (BM) has multiple black matrix openings (V2), which define the color filter (CF), i.e., the black matrix openings (V2) correspond to the filtering areas of the color filter (CF). The color filter (CF) filters the light emitted by the sub-pixels 2. The black matrix layer (BM) can absorb both the light emitted by the sub-pixels 2 and incident light from the external environment. For example, the black matrix layer (BM) can be a film structure composed of a black matrix (e.g., using black resin as the main material). In this case, the black matrix openings (V2) are holes in the entire black matrix material, and the black matrix layer (BM) is formed simultaneously when holes are drilled in the entire black matrix material. Alternatively, the black matrix layer BM can also be a light-absorbing structure formed by stacking multiple color filters CF, that is, removing the black matrix and achieving light absorption through a multi-layer color filter stacking scheme. In this case, the black matrix opening V2 is the area between multiple color filters CF (e.g., a stack of red filter CF_R, green light-emitting device CF_G, and blue filter CF_B), used to define a single layer of color filter CF.

[0079] For example, the sub-pixel 2 disclosed herein includes a light-emitting device and a pixel driving circuit for driving the light-emitting device. The light-emitting device may be an OLED light-emitting device. The pixel opening V1, used to define the sub-pixel 2, defines the light-emitting layer EL in the OLED light-emitting device. In addition to the light-emitting layer EL, the OLED light-emitting device also includes at least an anode 01 and a cathode 02 disposed on two opposite sides of the light-emitting layer EL in the thickness direction. For example, the anode 01 is disposed on the side of the light-emitting layer EL closer to the substrate 1, and the cathode 02 is disposed on the side of the light-emitting layer EL away from the substrate 1.

[0080] As shown in Figures 2a and 2b, the orthographic projection of pixel opening V1 onto substrate 1 is a first contour pattern 31, and the orthographic projection of black matrix opening V2 onto substrate 1 is a second contour pattern 32. Exemplarily, the geometric center of the first contour pattern 31 and the geometric center of the second contour pattern 32 are directly opposite each other; for example, their orthographic projections onto substrate 1 may coincide. Of course, this is only an example, and in this disclosure, the orthographic projections of the geometric centers of the first contour pattern 31 and the second contour pattern 32 onto substrate 1 may not coincide.

[0081] In this case, at least one of the first contour pattern 31 and the second contour pattern 32 has some points with different curvatures. For example, the first contour pattern 31 has some points with different curvatures, thus the first contour pattern 31 is a non-circular pattern. Similarly, the second contour pattern 32 has some points with different curvatures, thus the second contour pattern 32 is a non-circular pattern.

[0082] In this embodiment of the disclosure, at least one of the first contour pattern 31 and the second contour pattern 32 is a non-circular pattern.

[0083] Continuing with Figures 2a and 2b, the first contour pattern 31 includes multiple first splicing segments 311 connected end to end; for any two adjacent first splicing segments 311, at least one point in one segment has a different curvature than at least one point in the other. Thus, at least one of the multiple first splicing segments 311 is a non-circular arc segment, meaning at least one of the multiple first splicing segments 311 contains a point with a different curvature. For example, as shown in Figure 3, the first contour pattern 31 includes a semicircular arc 401 and a semielliptical arc 501, which are spliced ​​together and tangent at their intersection.

[0084] Alternatively, continuing as shown in Figures 2a and 2b, the second contour pattern 32 includes multiple connected second splicing segments 321; for any two adjacent second splicing segments 321, at least one point in one segment has a different curvature than at least one point in the other. Thus, at least one of the multiple second splicing segments 321 is a non-circular arc segment, meaning at least one of the multiple second splicing segments 321 contains a point with a different curvature. For example, as shown in Figure 4, the second contour pattern 32 includes two circular arcs 402 and 403 and two elliptical arcs 502 and 503, with the circular and elliptical arcs alternating, and the circular and elliptical arcs being tangent at their intersection points.

[0085] The circular arc mentioned in this disclosure refers to an arc length on a circle with the same curvature. The specific radian measure corresponding to this arc length is not limited and can be any radian measure from 0 to 2π (excluding 0). For example, the radian measure corresponding to a semicircular arc 401 is π, the radian measure corresponding to a full circle is 2π, and the radian measure corresponding to a quarter circle is π / 2. The elliptical arc mentioned in this disclosure refers to an arc length on an ellipse. The length of the arc is not limited, for example, it can be a semielliptical arc 501, etc. The semielliptical arc 501 can be a semielliptical arc 501 with the two endpoints of the major axis as its endpoints, or it can be a semielliptical arc 501 with the two endpoints of the minor axis as its endpoints.

[0086] The embodiments disclosed herein employ unique pattern designs, such as circular arcing and / or elliptical arcing of the first contour pattern 31 of the pixel opening V1 and the second contour pattern 32 of the black matrix opening V2, as well as splicing the two, which can improve diffraction phenomena.

[0087] In some embodiments, the multiple first splicing segments 311 include multiple arc segments, or at least one arc segment and a straight line segment; the multiple second splicing segments 321 include multiple arc segments, or at least one arc segment and a straight line segment; the arc segments are circular arcs or elliptical arcs.

[0088] Optionally, the multiple first splicing segments 311 can be a combination of at least one circular arc and at least one elliptical arc. Alternatively, the multiple first splicing segments 311 can be a combination of at least one circular arc and at least one straight line segment. Or, the multiple first splicing segments 311 can be a combination of at least one circular arc, at least one elliptical arc, and at least one straight line segment. Or, the multiple first splicing segments 311 can be a combination of multiple circular arcs with different curvatures. Or, the multiple first splicing segments 311 can be a combination of multiple elliptical arcs.

[0089] Optionally, the multiple second splicing segments 321 can be a combination of at least one circular arc and at least one elliptical arc. Alternatively, the multiple second splicing segments 321 can be a combination of at least one circular arc and at least one straight line segment. Or, the multiple second splicing segments 321 can be a combination of at least one circular arc, at least one elliptical arc, and at least one straight line segment. Or, the multiple second splicing segments 321 can be a combination of multiple circular arcs with different curvatures. Or, the multiple second splicing segments 321 can be a combination of multiple elliptical arcs.

[0090] Figure 3 is a schematic diagram of a pixel opening or black matrix opening under a patterned design provided in an embodiment of this disclosure. In an optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figure 3, the multiple arc segments are divided into two segments, one of which is a semicircular arc 401 and the other is a semielliptical arc 501. The semicircular arc 401 and the semielliptical arc 501 are tangent at their intersection point. Here, the diameter of the first circle 41 after the semicircular arc 401 is restored is equal to the major axis dimension of the first ellipse 51 after the semielliptical arc 501 is restored. The first ellipse 51 is inscribed in the first circle 41, and the point of tangency is the endpoint of the major axis of the first ellipse 51.

[0091] In this embodiment, the contour pattern shown in FIG3 can be applied to both pixel opening V1 and black matrix opening V2.

[0092] Figure 4 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in this embodiment. In another optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figure 4, there are four arc segments, namely the first segment 402, the second segment 502, the third segment 403, and the fourth segment 503 connected end to end; the first segment 402 and the third segment 403 are the same and are both circular arcs; the second segment 502 and the fourth segment 503 are the same and are both elliptical arcs. Here, "the same" means that the shape and size of the arc segments are the same, but the splicing position is different. For example, the first segment 402 and the third segment 403 are arranged opposite each other along the length direction (i.e., the Y direction) of the contour pattern, and the second segment 502 and the fourth segment 503 are arranged opposite each other along the width direction (i.e., the X direction) of the contour pattern. The two ends of the first segment 402 intersect with the second segment 502 and the fourth segment 503 respectively, which are the tangent points of the circular arc and the elliptical arc. The two ends of the third segment 403 intersect with the second segment 502 and the fourth segment 503 respectively, which are the tangent points of the circular arc and the elliptical arc. Here, the diameter of the second circle 42 after the circular arc is restored is equal to the semi-major axis of the second ellipse 52 after the elliptical arc is restored. The second circle 42 is inscribed in the second ellipse 52, and the point of tangency between them lies on the elliptical arc between 3a / 4 and a / 2, where a represents the semi-major axis of the second ellipse 52. The center of the second circle 42 is located at position a / 4 of the semi-major axis. The second circle 42 is also tangent to the reference line perpendicular to the major axis and passing through the 3a / 4 position of the semi-major axis. The closed pattern formed by splicing the first segment 402, the second segment 502, the third segment 403, and the fourth segment 503 end to end is an axially symmetric figure, resembling a "capsule".

[0093] In this embodiment, the contour pattern shown in FIG4 can be applied to both pixel opening V1 and black matrix opening V2.

[0094] Optionally, the first contour pattern 31 and the second contour pattern 32 have different shapes. For example, as shown in Figures 2a and 2b, the first contour pattern 31 uses a spliced ​​pattern of a semicircular arc 401 and a semi-elliptical arc 501 as shown in Figure 3. The second contour pattern 32 uses a "capsule" pattern as shown in Figure 4. Optionally, the second contour pattern 32 completely encloses the first contour pattern 31, the centers of the first contour pattern 31 and the second contour pattern 32 coincide, and the first contour pattern 31 can rotate at any angle within the second contour pattern 32. Specifically, this can be configured to meet the maximum opening ratio. For example, as shown in Figure 2a, the major axis of the first contour pattern 31 coincides with the major axis of the second contour pattern 32; and / or, the minor axis of the first contour pattern 31 coincides with the minor axis of the second contour pattern 32. Alternatively, the major axis of the first contour pattern 31 and the minor axis of the second contour pattern 32 are perpendicular to each other. For example, as shown in FIG2b, the major axis of the first contour pattern 31 coincides with the minor axis of the second contour pattern 32; and / or, the minor axis of the first contour pattern 31 coincides with the major axis of the second contour pattern 32. Alternatively, the major axis of the first contour pattern 31 and the major axis of the second contour pattern 32 are perpendicular to each other.

[0095] For example, as shown in Figures 2a, 3, and 4, the extension direction of the line connecting the intersection of the semicircular arc 401 and the semielliptical arc 501 in the first contour pattern 31 is the same as the extension direction of the line connecting the center of the first segment 402 and the center of the third segment 403 in the second contour pattern 32. For example, as shown in Figures 2b, 3, and 4, the extension direction of the line connecting the intersection of the semicircular arc 401 and the semielliptical arc 501 in the first contour pattern 31 is perpendicular to the extension direction of the line connecting the center of the first segment 402 and the center of the third segment 403 in the second contour pattern 32.

[0096] For example, as shown in FIG5, the first contour pattern 31 adopts the "capsule" pattern shown in FIG4, and the second contour pattern 32 adopts the splicing pattern of semicircular arc 401 and semielliptical arc 501 shown in FIG3.

[0097] Optionally, the first outline pattern 31 and the second outline pattern 32 have the same shape. For example, as shown in FIG6, both the first outline pattern 31 and the second outline pattern 32 adopt the "capsule" pattern shown in FIG4. For example, as shown in FIG7, both the first outline pattern 31 and the second outline pattern 32 adopt the splicing pattern of semicircular arc 401 and semielliptical arc 501 shown in FIG3.

[0098] In some embodiments, the first outline pattern 31 is circular or elliptical; the second outline pattern 32 is circular or elliptical.

[0099] Optionally, the first outline pattern 31 is circular, and the shapes of the first outline pattern 31 and the second outline pattern 32 are different. For example, as shown in FIG8, the first outline pattern 31 can be a circular pattern, and the second outline pattern 32 can be a "capsule" pattern as shown in FIG4. For example, as shown in FIG9, the first outline pattern 31 can be a circular pattern, and the second outline pattern 32 can be a spliced ​​pattern of a semicircular arc 401 and a semielliptical arc 501 as shown in FIG3.

[0100] Optionally, the second outline pattern 32 is elliptical, and the shapes of the first outline pattern 31 and the second outline pattern 32 are different. For example, as shown in FIG10, the first outline pattern 31 adopts the "capsule" pattern shown in FIG4, and the second outline pattern 32 adopts an elliptical pattern. For example, as shown in FIG11, the first outline pattern 31 adopts a spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 as shown in FIG3, and the second outline pattern 32 adopts an elliptical pattern.

[0101] Optionally, as shown in Figure 12, the first outline pattern 31 can be an elliptical pattern, and the second outline pattern 32 can be a "capsule" pattern as shown in Figure 4.

[0102] Optionally, as shown in Figure 13, the first outline pattern 31 can be a "capsule" pattern as shown in Figure 4, and the second outline pattern 32 can be a circular pattern.

[0103] Figure 14 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in an embodiment of this disclosure. In another optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figure 14, the multiple arc segments are four segments, which are the intersecting arc segments after the third ellipse 53 and the fourth ellipse 54 intersect. Here, the third ellipse 53 and the fourth ellipse 54 can overlap at any angle.

[0104] Optionally, as shown in Figure 14, the centers of the third ellipse 53 and the fourth ellipse 54 coincide, and their major axes are perpendicular to each other. The pattern retained after their intersection is the first contour pattern 31 or the second contour pattern 32. The four elliptical arcs formed are the first intersecting sub-segment 504, the second intersecting sub-segment 505, the third intersecting sub-segment 506, and the fourth intersecting sub-segment 507.

[0105] Optionally, as shown in Figure 14, the third ellipse 53 and the fourth ellipse 54 are identical, meaning they have the same dimensions, such as their major and minor axes. When the third ellipse 53 and the fourth ellipse 54 intersect, their centers intersect, and their major axes are perpendicular to each other, forming a centrally symmetrical pattern, similar to a "round square". Furthermore, rounded corners are formed between adjacent arc segments to ensure a smooth transition and further improve diffraction.

[0106] Optionally, the eccentricity of the third ellipse 53 and the fourth ellipse 54 is between 0 and 0.75, excluding 0. For example, the eccentricity is 0.65.

[0107] In this embodiment, the "circle-square" pattern shown in Figure 14 can be applied to both pixel opening V1 and black matrix opening V2.

[0108] Optionally, as shown in Figure 15, the first outline pattern 31 adopts the "round square" pattern shown in Figure 14, and the second outline pattern 32 adopts an elliptical pattern.

[0109] Optionally, as shown in Figure 16, the first outline pattern 31 can be a circular pattern, and the second outline pattern 32 can be a "circle-square" pattern as shown in Figure 14.

[0110] Optionally, as shown in Figure 17, the first outline pattern 31 can be a spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 as shown in Figure 3, and the second outline pattern 32 can be a "round square" pattern as shown in Figure 14.

[0111] Figures 18a to 18c are schematic diagrams of pixel openings or black matrix openings under another patterned design provided in the embodiments of this disclosure. In another optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figures 18a to 18c, the arc segment is one segment, and it is an elliptical arc 508; the straight line segment 601 is one segment; the extension direction of the straight line segment 601 is the same as the extension direction of the minor axis of the fifth ellipse 55 after the elliptical arc 508 is restored, and the straight line segment 601 is located between the center O of the fifth ellipse 55 and the vertex A of the semi-major axis.

[0112] For example, as shown in Figure 18a, line segment 601 is located at position a / 2 of the semi-major axis of the fifth ellipse 55. For example, as shown in Figure 18b, line segment 601 is located at position a / 4 of the semi-major axis of the fifth ellipse 55. For example, as shown in Figure 18c, line segment 601 is located at the center O of the fifth ellipse 55.

[0113] Optionally, the outline pattern shown in Figures 18a to 18c has a shape similar to a "semi-ellipse". Specifically, it can be the pattern retained after cutting off the elliptical arcs corresponding to a / 4 to a along the minor axis of the fifth ellipse 55.

[0114] In this embodiment, the contour pattern shown in Figures 18a to 18c can be applied to both pixel opening V1 and black matrix opening V2.

[0115] Optionally, as shown in Figures 19a to 19e, the first contour pattern 31 can be a spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 as shown in Figure 3, or a circular pattern. The second contour pattern 32 shown in Figure 19a can be a "semi-elliptical" pattern as shown in Figure 18a. The second contour pattern 32 shown in Figures 19b and 19c both adopt the "semi-elliptical" pattern as shown in Figure 18b. The relative positions of the first contour pattern 31 in Figure 19b and the first contour pattern 31 in Figure 19c with respect to the second contour pattern 32 are different. For example, the first contour pattern 31 in Figure 19b is located within the second contour pattern 32 and does not intersect with it; the first contour pattern 31 in Figure 19c is located within the second contour pattern 32 but intersects with it, meaning the first contour pattern 31 is inscribed within the second contour pattern 32. The second contour pattern 32 shown in Figure 19d is a semi-elliptical pattern, but its size differs from that shown in Figures 19b and 19c, and the relative position of the first contour pattern 31 to the second contour pattern 32 is different. For example, the shortest distance of the straight line segment 601 from the first contour pattern 31 to the second contour pattern 32 shown in Figure 19d is smaller than the shortest distance of the straight line segment 601 from the first contour pattern 31 to the second contour pattern 32 shown in Figures 19b or 19c. The second contour pattern 32 shown in Figure 19e can adopt a semi-elliptical pattern as shown in Figure 18c. The first contour pattern 31 can be located within the second contour pattern 32 and does not intersect with it; or, the first contour pattern 31 can be internally tangent to the second contour pattern 32, either as an elliptical arc 508 or a straight line segment 601 within the second contour pattern 32.

[0116] Of course, the above are only some examples. The first contour pattern 31 in this disclosure can be rotated at any angle within the second contour pattern 32, specifically, it can be set to meet the premise of the maximum opening ratio.

[0117] Optionally, as shown in Figures 20a to 20c, the first outline pattern 31 can be a "semi-elliptical" pattern as shown in Figures 18a to 18c, and the second outline pattern 32 can be a spliced ​​pattern of semi-circular arc 401 and semi-elliptical arc 501 as shown in Figure 3 or a circular pattern.

[0118] Optionally, the first outline pattern 31 can be a spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 as shown in Figure 3, or a circular pattern, and the second outline pattern 32 can be a semicircular pattern.

[0119] Figures 21a-21f are schematic diagrams of pixel openings or black matrix openings under another patterned design provided in the embodiments of this disclosure. In another optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figures 21a-21f, the multiple arc segments are the joint arc segments formed by the union of the sixth ellipse 56 and the seventh ellipse 57. The term "joint" means that the sixth ellipse 56 and the seventh ellipse 57 are connected as one, and the joint arc segment is the pattern formed by the outer contour remaining after removing the intersecting contours of the sixth ellipse 56 and the seventh ellipse 57 connected as one. For example, it may be two elliptical arc segments, such as the first joint sub-segment 509 and the second joint sub-segment 5010 shown in Figures 21a and 21b. As another example, it may be four elliptical arc segments, such as the third joint sub-segment 5011, the fourth joint sub-segment 5012, the fifth joint sub-segment 5013, and the sixth joint sub-segment 5014 shown in Figure 21c.

[0120] Optionally, the major axis of the sixth ellipse 56 is greater than the major axis of the seventh ellipse 57; the minor axis of the sixth ellipse 56 is less than the minor axis of the seventh ellipse 57.

[0121] In this embodiment, the sixth ellipse 56 and the seventh ellipse 57 can be combined at any angle and position, provided that they overlap. Figures 21a to 21f are only examples of partial combination methods, and will not be listed one by one here.

[0122] Optionally, as shown in Figures 21a and 21b, the sixth ellipse 56 and the seventh ellipse 57 intersect each other and are tangent at a single point. Specifically, as shown in Figure 21a, the sixth ellipse 56 and the seventh ellipse 57 have only one point of tangency, which is a vertex of their respective major axes. Besides the point of tangency, the sixth ellipse 56 and the seventh ellipse 57 also have two intersection points A and B, which are symmetric about the major axis of the sixth ellipse 56 (or the seventh ellipse 57). For example, both intersection points A and B are located on the semi-elliptical arc of the sixth ellipse 56 (or the seventh ellipse 57) bounded by its minor semi-axis and far from the point of tangency. As shown in Figure 21b, the sixth ellipse 56 and the seventh ellipse 57 have only one point of tangency, which is a vertex of their respective minor axes. Besides the point of tangency, the sixth ellipse 56 and the seventh ellipse 57 also have two intersection points C and D, which are symmetric about the minor axis of the sixth ellipse 56 (or the seventh ellipse 57). For example, both intersection points C and D are located on the semi-elliptical arc of the sixth ellipse 56 (or the seventh ellipse 57) with its major semi-axis as the boundary and far from the point of tangency. Optionally, as shown in Figure 21c, the sixth ellipse 56 and the seventh ellipse 57 have only one point of tangency, which can be a point of tangency E at a random location, and two intersection points F and G. For example, the major axis of the sixth ellipse 56 and the major axis of the seventh ellipse 57 can be perpendicular.

[0123] Optionally, as shown in Figure 21d, the sixth ellipse 56 and the seventh ellipse 57 are identical, meaning they have the same dimensions, such as their major and minor axes. When the sixth ellipse 56 and the seventh ellipse 57 are joined, their centers intersect, and their major axes are perpendicular to each other, forming a centrally symmetrical pattern, similar to a four-leaf clover. Furthermore, rounded corners are formed between adjacent arc segments to ensure a smooth transition and further improve diffraction.

[0124] Optionally, the sixth ellipse 56 and the seventh ellipse 57 in this disclosure may be different.

[0125] Optionally, as shown in Figure 21e, the sixth ellipse 56 and the seventh ellipse 57 are identical, where "identical" means having the same dimensions, such as the major and minor axes. When the sixth ellipse 56 and the seventh ellipse 57 are joined, their centers do not intersect, but their major axes are perpendicular to each other. Furthermore, rounded corners are formed between adjacent arc segments to ensure a smooth transition and further improve diffraction.

[0126] Alternatively, as shown in Figure 21f, the sixth ellipse 56 and the seventh ellipse 57 are the same, except that the minor axis of the sixth ellipse 56 is shorter and the major axis is longer than that of Figure 21.

[0127] In this embodiment, the “joint” pattern shown in Figures 21a to 21f can be applied to both pixel opening V1 and black matrix opening V2.

[0128] Optionally, as shown in Figure 22, the first contour pattern 31 can adopt the "combined" pattern shown in Figures 21a to 21f. Here, only the "combined" pattern shown in Figure 21a is used as an example. Other "combined" patterns are similar and will not be listed one by one in this disclosure. The second contour pattern 32 can adopt the splicing pattern of semicircular arc 401 and semielliptical arc 501 shown in Figure 3.

[0129] Optionally, as shown in Figure 23, the first contour pattern 31 adopts the splicing pattern of semicircular arc 401 and semielliptical arc 501 as shown in Figure 3, and the second contour pattern 32 adopts the "joint" pattern shown in Figures 21a to 21f. Here, only the "joint" pattern shown in Figure 21c is taken as an example. Other "joint" patterns are similar, and will not be listed one by one in this disclosure.

[0130] Optionally, as shown in Figure 24, the first contour pattern 31 adopts a circular pattern, and the second contour pattern 32 adopts a "joint" pattern as shown in Figures 21a to 21f. Here, only the "joint" pattern shown in Figure 21b is taken as an example. Other "joint" patterns are similar, and will not be listed one by one in this disclosure.

[0131] Figure 25 is a schematic diagram of a pixel opening or black matrix opening under another patterned design provided in an embodiment of this disclosure. In another optional embodiment, for the first contour pattern 31 or the second contour pattern 32, as shown in Figure 25, there are four arc segments, namely the fifth segment 5015, the sixth segment 5016, the seventh segment 5017, and the eighth segment 5018 connected end to end; the fifth segment 5015 and the seventh segment 5017 are the same and are both elliptical arcs; the sixth segment 5016 and the eighth segment 5018 are the same and are both elliptical arcs. Here, "the same" means that the shape and size of the arc segments are the same, but the splicing position is different. Optionally, the elliptical arc of the fifth segment 5015 is restored to the eighth ellipse 58, the elliptical arc of the sixth segment 5016 is restored to the ninth ellipse 59, the elliptical arc of the seventh segment 5017 is restored to the tenth ellipse 510, and the elliptical arc of the eighth segment 5018 is restored to the eleventh ellipse 511.

[0132] Optionally, the dimensions of the eighth ellipse 58, the ninth ellipse 59, the tenth ellipse 510, and the eleventh ellipse 511 are all the same. Alternatively, the dimensions of the eighth ellipse 58 and the tenth ellipse 510 are all the same, as are the dimensions of the ninth ellipse 59 and the eleventh ellipse 511. The two ends of the fifth segment 5015 intersect with the sixth segment 5016 and the eighth segment 5018, respectively, which are the tangent points of the elliptical arcs, that is, the tangent points of the eighth ellipse 58 with the ninth ellipse 59 and the eleventh ellipse 511, respectively. The two ends of the seventh segment 5017 intersect with the sixth segment 5016 and the eighth segment 5018, respectively, which are the tangent points of the elliptical arcs, that is, the tangent points of the tenth ellipse 510 with the ninth ellipse 59 and the eleventh ellipse 511, respectively. This ultimately forms a relatively smooth and drum-shaped pattern, which is beneficial for improving diffraction.

[0133] In this embodiment, the "drum-shaped" pattern shown in Figure 25 can be applied to both pixel opening V1 and black matrix opening V2.

[0134] Optionally, as shown in Figure 26, the first outline pattern 31 can be a spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 as shown in Figure 3 or a "capsule" pattern as shown in Figure 4, and the second outline pattern 32 can be a "drum-shaped" pattern as shown in Figure 25.

[0135] Optionally, as shown in Figure 27, the first outline pattern 31 can be a circular pattern or an elliptical pattern, and the second outline pattern 32 can be a "drum-shaped" pattern as shown in Figure 25.

[0136] Optionally, as shown in Figure 28a, the first outline pattern 31 can adopt the "drum-shaped" pattern shown in Figure 25, and the second outline pattern 32 can adopt the spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 shown in Figure 3. As shown in Figure 28b, the first outline pattern 31 can adopt the "drum-shaped" pattern shown in Figure 25, and the second outline pattern 32 can adopt the "capsule" pattern shown in Figure 4.

[0137] Optionally, as shown in Figure 28c, the first contour pattern 31 can be a "drum-shaped" pattern as shown in Figure 25, and the second contour pattern 32 can be an elliptical pattern. The length direction of the first contour pattern 31 is the same as the major axis direction of the second contour pattern 32.

[0138] Optionally, as shown in FIG28d, the first contour pattern 31 can be a "drum-shaped" pattern as shown in FIG25, and the second contour pattern 32 can be an elliptical pattern, wherein the length direction of the first contour pattern 31 is the same as the minor axis direction of the second contour pattern 32. For example, the first contour pattern 31 is inscribed in the second contour pattern 32. For instance, the midpoint of two oppositely arranged elliptical arcs in the first contour pattern 31 is tangent to the endpoint of the minor axis of the second contour pattern 32.

[0139] Optionally, as shown in Figures 29a and 29b, the first contour pattern 31 can be a "drum-shaped" pattern as shown in Figure 25, and the second contour pattern 32 can be a circular pattern. Specifically, as shown in Figure 29a, the second contour pattern 32 surrounds the first contour pattern 31 and does not intersect with it. As shown in Figure 29b, the first contour pattern 31 is inscribed within the second contour pattern 32.

[0140] Furthermore, any two of the following patterns provided in this embodiment—the splicing pattern of the semicircular arc 401 and semielliptical arc 501 shown in FIG3, the "capsule" pattern shown in FIG4, the "round-square" pattern shown in FIG14, the "semi-elliptical" pattern shown in FIG18a-18c, the "joint" pattern shown in FIG21a-21f, and the "drum-shaped" pattern shown in FIG25—can be selected as the first contour pattern 31 and the second contour pattern 32. Alternatively, any one of the following patterns—the splicing pattern of the semicircular arc 401 and semielliptical arc 501 shown in FIG3, the "capsule" pattern shown in FIG4, the "round-square" pattern shown in FIG14, the "semi-elliptical" pattern shown in FIG18a-18c, the "joint" pattern shown in FIG21a-21f, and the "drum-shaped" pattern shown in FIG25—and a circular pattern can be selected as the first contour pattern 31 and the second contour pattern 32. Alternatively, one of the following patterns can be selected, along with an elliptical pattern, as the first outline pattern 31 and the second outline pattern 32: the spliced ​​pattern of semicircular arc 401 and semielliptical arc 501 shown in Figure 3, the "capsule" pattern shown in Figure 4, the "round square" pattern shown in Figure 14, the "semi-elliptical" pattern shown in Figures 18 to 18c, the "joint" pattern shown in Figures 21a to 21f, and the "drum-shaped" pattern shown in Figure 25.

[0141] Examples of possible embodiments of the first contour pattern 31 and the second contour pattern 32 of this disclosure are shown in Table 1 below.

[0142] Table 1

[0143] In some embodiments, the combined pattern of the first contour pattern 31 and the second contour pattern 32 corresponding to any sub-pixel 2 can be rotated at any angle.

[0144] It should be noted that the patterned design described above in this disclosure is applicable to various subpixel arrangements, such as real RGB and Pentile RGB. The Pentile RGB subpixel arrangement will be used as an example below. The real RGB subpixel arrangement is also applicable and will not be elaborated upon further.

[0145] In some embodiments, the first contour pattern 31 or the second contour pattern 32 corresponding to adjacent sub-pixels 2 have a certain angle between their respective length directions. As shown in Figures 30 and 31, the so-called "length direction" refers to the direction of the major axis of the elliptical pattern.

[0146] In one possible implementation, the display panel includes multiple groups of pixel units, each group comprising multiple pixel units, such as 8×8 or 4×4 pixel units per group. Each pixel unit includes multiple sub-pixels of different colors; for example, a pixel unit includes a red sub-pixel r, a green sub-pixel g, and a blue sub-pixel b. As shown in Figure 30, for at least one of the multiple pixel unit groups, multiple sub-pixel groups 20 are divided along their diagonal direction, and each sub-pixel group 20 has multiple sub-pixels 2 arranged side by side along the diagonal direction; for any sub-pixel group 20, the rotation angle difference between any two adjacent sub-pixels 2 along the diagonal direction is the same; for two adjacent sub-pixel groups 20, the rotation angle difference between any two adjacent sub-pixels 2 along the diagonal direction of one group is different from that of the other group. Here, the rotation angle difference refers to the absolute value of the difference in rotation angles between two adjacent sub-pixels 2, which is a positive number.

[0147] Optionally, as shown in Figure 30, taking an n×n pixel unit group as an example, the pixel unit group is divided into multiple sub-pixel groups 20 along the diagonal direction. The rotation angles of two adjacent sub-pixels 2 in each sub-pixel group 20 along the diagonal direction differ by 180 / n, which is the rotation step size. Here, n represents the number of sub-pixels 2 in the sub-pixel group 20. The rotation step sizes of any two sub-pixel 2 in the same sub-pixel group 20 are equal, and the rotation angles along one direction of the diagonal increase sequentially according to the rotation step size. The diagonals referenced by adjacent sub-pixel groups 20 point in opposite directions, meaning the directions in which the rotation step sizes increase sequentially are opposite; or, it can be understood that the rotation angles of two adjacent sub-pixel 2 in adjacent sub-pixel groups 20 are opposite. The position of the sub-pixel 2 that begins rotation in adjacent sub-pixel groups 20 is located at the end furthest from the arrow. Different sub-pixel groups 20 correspond to different rotation step sizes. For example, the rotation step sizes of two adjacent sub-pixel groups 20 differ by 1 / 2β, meaning that the rotation step size of the latter sub-pixel group 20 is 1 / 2β less than the rotation step size of the former sub-pixel group 20, where β represents the rotation step size of the former sub-pixel group 20. The terms "former sub-pixel group 20" and "later sub-pixel group 20" refer to any two adjacent sub-pixel groups 20, with the former sub-pixel group 20 being closer to the center of the pixel unit group than the latter sub-pixel group 20.

[0148] In another possible implementation, as shown in FIG31, for at least one of the multiple pixel unit groups, according to its surrounding direction, it is divided into a plurality of nested sub-pixel groups 20, and each sub-pixel group 20 is uniformly provided with a plurality of sub-pixels 2 in the surrounding direction; for any sub-pixel group 20, the rotation angle difference between any two adjacent sub-pixels 2 in the surrounding direction is the same; for two adjacent sub-pixel groups 20, the rotation angle difference between any two adjacent sub-pixels 2 in the surrounding direction of one is different from the rotation angle difference between any two adjacent sub-pixels 2 in the surrounding direction of the other.

[0149] Optionally, as shown in Figure 31, the pixel unit includes a red sub-pixel 2, a green sub-pixel 2, and a blue sub-pixel 2. Taking an n×n pixel unit group as an example, it is divided into multiple nested sub-pixel groups 20. In each sub-pixel group 20, the rotation angle of any two adjacent sub-pixels 2 in the direction surrounding the center of the pixel unit group differs by 180 / n, which is the rotation step size, where n represents the number of sub-pixels 2 in the sub-pixel group 20. The rotation step sizes of any two sub-pixel 2 in the same sub-pixel group 20 are equal, and the rotation angles along the direction surrounding the center of the pixel unit group increase sequentially according to the rotation step size. The rotation step sizes corresponding to different sub-pixel groups 20 are different, and the direction surrounding the center of the pixel unit group referenced by adjacent sub-pixel groups 20 is the same. The rotation step sizes corresponding to each of the adjacent sub-pixel groups 20 differ by 1 / 2β, that is, the rotation step size of the later sub-pixel group 20 is 1 / 2β less than the rotation step size of the earlier sub-pixel group 20, where β represents the rotation step size of the earlier sub-pixel group 20. The terms "previous sub-pixel group 20" and "next sub-pixel group 20" refer to any two adjacent sub-pixel groups 20, with the "previous sub-pixel group 20" being closer to the center of the pixel unit group than the "next sub-pixel group 20".

[0150] For any one color sub-pixel 2, the first contour pattern 31 and the second contour pattern 32 corresponding to them can be combined into a pattern that follows the pattern shown in Figure 30 or Figure 31. That is, a single sub-pixel 2 can be arranged randomly as shown in Figure 30 or Figure 31. Alternatively, only one color sub-pixel 2 can be patterned according to the above embodiments, while other color sub-pixels 2 are left unprocessed. Alternatively, any two of the red, green, and blue sub-pixels 2 can be patterned according to the above embodiments, while the remaining color sub-pixel 2 is left unprocessed.

[0151] In some embodiments, the maximum spacing between the first contour pattern 31 and the second contour pattern 32 is between 0 and 10 μm. Optionally, the spacing between the first contour pattern 31 and the second contour pattern 32 is between 0 and 5 μm.

[0152] For the "capsule" pattern shown in Figure 4, a diffraction simulation test was conducted by rotating it with a 20° rotation step, and the simulation results are shown in Figure 32. For the "round-square" pattern shown in Figure 14, a diffraction simulation test was conducted by rotating it with a 20° rotation step, and the simulation results are shown in Figure 33. For the elliptical pattern, a diffraction simulation test was conducted by rotating it with a 10° rotation step, and the simulation results are shown in Figure 34. For the circular pattern, a diffraction simulation test was conducted, and the simulation results are shown in Figure 35. According to the simulation results, compared with the diffraction effect of the circular pattern, the "capsule" pattern, after pixel rotation, has fewer diffraction rings, indicating an improved diffraction effect. Compared with the circular pattern, the "round-square" pattern, after pixel rotation, has a fainter outer diffraction ring, indicating an improved diffraction effect. Compared with the circular pattern, the "elliptical" pattern, after pixel rotation, has fewer diffraction rings, indicating an improved diffraction effect.

[0153] In some embodiments, as shown in FIG1, the pixel driving circuit includes at least a driving transistor TFT. A planarization layer PDL is disposed between the pixel driving circuit and the light-emitting device. The light-emitting device includes a red light-emitting device R, a green light-emitting device G, and a blue light-emitting device (not shown in the figure). The color filter CF includes a red filter CF_R corresponding to the red light-emitting device R, a green filter CF_G corresponding to the green light-emitting device G, and a blue filter (not shown in the figure) corresponding to the blue light-emitting device. An encapsulation layer 6 is disposed between the color filter CF and the light-emitting device. The encapsulation layer 6 can be a multilayer structure, such as a stacked structure of an inorganic encapsulation layer, an organic encapsulation layer, and an inorganic encapsulation layer. A protective layer 7 is disposed on the side of the color filter CF facing away from the substrate 1.

[0154] In addition, this disclosure also provides a display device, which includes the display panel of any of the above embodiments. This display device can be, for example, any product with a display function such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or in-vehicle device. Other essential components of this display device are those that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0155] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of this disclosure, and this disclosure is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and substance of this disclosure, and these modifications and improvements are also considered to be within the scope of protection of this disclosure.

Claims

1. A display panel comprising a substrate, a pixel defining layer and a plurality of sub-pixels disposed on the substrate, a black matrix layer disposed on a side of the plurality of sub-pixels facing away from the substrate, and a color filter disposed corresponding to the sub-pixels; the pixel defining layer includes a plurality of pixel openings for defining the sub-pixels; the black matrix layer has a plurality of black matrix openings for defining the color filters; The orthographic projection of the pixel opening onto the substrate is a first contour pattern, and the orthographic projection of the black matrix opening onto the substrate is a second contour pattern; at least one of the first contour pattern and the second contour pattern has different curvatures at some points. The first contour pattern includes multiple first splicing segments connected end to end; the second contour pattern includes multiple second splicing segments connected end to end; for two adjacent first splicing segments, at least one point in one segment has a different curvature from at least one point in the other segment; or, for two adjacent second splicing segments, at least one point in one segment has a different curvature from at least one point in the other segment.

2. The display panel according to claim 1, wherein, The first splicing segment comprises multiple arc segments, or at least one arc segment and a straight line segment; the second splicing segment comprises multiple arc segments, or at least one arc segment and a straight line segment; the arc segments are circular arcs or elliptical arcs.

3. The display panel according to claim 2, wherein, The arc segment mentioned above consists of two segments; One segment of the arc is a semicircular arc, and the other segment is a semielliptical arc; the semicircular arc and the semielliptical arc are tangent at their intersection point.

4. The display panel according to claim 2, wherein, The arc segment mentioned above consists of four segments, namely the first segment, the second segment, the third segment, and the fourth segment, which are connected end to end in sequence; The first segment and the third segment are the same, and both are circular arcs; the second segment and the fourth segment are the same, and both are elliptical arcs; the intersection points of the two ends of the first segment with the second segment and the fourth segment are the tangent points of the circular arc and the elliptical arc; the intersection points of the two ends of the third segment with the second segment and the fourth segment are the tangent points of the circular arc and the elliptical arc.

5. The display panel according to claim 2, wherein, The arc segment mentioned above consists of four segments, which are the intersecting arc segments after the third ellipse and the fourth ellipse intersect.

6. The display panel according to claim 5, wherein, The third ellipse and the fourth ellipse are identical, and when the third ellipse and the fourth ellipse intersect, their centers intersect, and their major axes are perpendicular to each other.

7. The display panel according to claim 2, wherein, The arc segment is a segment, and it is an elliptical arc; the straight line segment is a segment; the extension direction of the straight line segment is the same as the extension direction of the minor axis of the fifth ellipse after the elliptical arc is restored, and the straight line segment is located between the center of the fifth ellipse and the vertex of the semi-major axis.

8. The display panel according to claim 2, wherein, The multiple arc segments are the combined arc segments of the sixth and seventh ellipses.

9. The display panel according to claim 8, wherein, The sixth ellipse and the seventh ellipse are internally tangent at a point.

10. The display panel according to claim 8, wherein, The sixth ellipse and the seventh ellipse are identical, and when the sixth ellipse and the seventh ellipse are combined, their centers intersect, and their major axes are perpendicular to each other.

11. The display panel according to claim 2, wherein, The arc segment mentioned above consists of four segments, namely the fifth, sixth, seventh, and eighth segments connected end to end; The fifth and sixth segments are identical and are both elliptical arcs; the seventh and eighth segments are identical and are both elliptical arcs; the intersection points of the two ends of the fifth segment with the seventh and eighth segments are the tangent points of the elliptical arcs; the intersection points of the two ends of the sixth segment with the seventh and eighth segments are the tangent points of the elliptical arcs.

12. The display panel according to claim 1, wherein, The first contour pattern or the second contour pattern corresponding to adjacent sub-pixels have a certain angle between their respective length directions.

13. The display panel according to claim 12, wherein, The display panel includes multiple groups of pixel units, each group of pixel units includes multiple pixel units, and each pixel unit includes multiple sub-pixels of different colors; For at least one of the plurality of pixel unit groups, a plurality of sub-pixel groups are divided along its diagonal direction, and a plurality of sub-pixels are arranged side by side in the diagonal direction in each sub-pixel group; For any of the sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the diagonal direction is the same; For two adjacent sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the diagonal direction of one group is different from the rotation angle difference between any two adjacent sub-pixels in the diagonal direction of the other group.

14. The display panel according to claim 12, wherein, The display panel includes multiple groups of pixel units, each group of pixel units includes multiple pixel units, and each pixel unit includes multiple sub-pixels of different colors; For at least one of the multiple pixel unit groups, according to its surrounding direction, it is divided into multiple nested sub-pixel groups, and each sub-pixel group has multiple sub-pixels evenly arranged in the surrounding direction; For any given sub-pixel group, the rotation angle difference between any two adjacent sub-pixels in the surrounding direction is the same; For two adjacent sub-pixel groups, the rotation angle difference between any two adjacent sub-pixels in the circumferential direction of one group is different from the rotation angle difference between any two adjacent sub-pixels in the circumferential direction of the other group.

15. A display device, wherein, Includes the display panel as described in any one of claims 1 to 14.

Images