Display panel and display device

Abstract

The application provides a display panel and a display device, which comprise a display area, a substrate, a plurality of sub-pixels located in the display area on one side of the substrate, the plurality of sub-pixels are arranged in rows along a first direction, two adjacent rows of sub-pixels are staggered, and each row of sub-pixels comprises first sub-pixels and second sub-pixels located in two adjacent rows respectively; the coordinates of the center of the first sub-pixel are marked as (0, 0), and the coordinates of the center of the second sub-pixel are marked as (x1, y1); each sub-pixel comprises a first electrode; the first electrode is a polygon perpendicular to the direction of the substrate, the polygon comprises a first electrode side and a second electrode side connected in sequence, and the included angle between the first electrode side and the second electrode side and the first direction is θ; the length of the horizontal axis of the circumscribed ellipse of the polygon edge of the first electrode along the first direction is marked as a, the length of the vertical axis of the circumscribed ellipse along a second direction perpendicular to the first direction is marked as b; the circumscribed ellipse of the first sub-pixel is tangent to the circumscribed ellipse of the second sub-pixel; and θ satisfies:

Description

Technical Field

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

[0002] With the development of science and technology and the progress of society, people are increasingly reliant on information exchange and transmission. As the main carrier and material basis for information exchange and transmission, display devices have become a hot topic of research for many scientists.

[0003] In existing honeycomb pixel designs, the anode shape and pixel opening shape are hexagonal, exhibiting a certain degree of symmetry, with the included angle of the hexagons being 120°. When microlenses are incorporated into the display panel, the modulation of the microlenses creates virtual images, resulting in a poor viewing experience. Summary of the Invention

[0004] The present invention provides a display panel and a display device to improve the display experience.

[0005] In a first aspect, embodiments of the present invention provide a display panel including a display area;

[0006] Substrate;

[0007] Multiple sub-pixels are located in the display area on one side of the substrate; the multiple sub-pixels are arranged in rows along a first direction, with adjacent rows of sub-pixels interleaved, including a first sub-pixel and a second sub-pixel located in adjacent rows respectively; the coordinates of the center of the first sub-pixel are (0, 0), and the coordinates of the center of the second sub-pixel are (x1, y1).

[0008] The sub-pixel includes a first electrode; perpendicular to the substrate, the first electrode is polygonal, including a first electrode side and a second electrode side connected in sequence, and the angle between the first electrode side and the second electrode side and the first direction is θ;

[0009] The length of the horizontal axis of the circumscribed ellipse of the polygonal edge of the first electrode along the first direction is denoted as a, and the length of the vertical axis of the circumscribed ellipse along the second direction is denoted as b, wherein the second direction is perpendicular to the first direction.

[0010] The circumscribed ellipse of the first sub-pixel is tangent to the circumscribed ellipse of the second sub-pixel;

[0011] θ satisfies:

[0012] In a second aspect, embodiments of the present invention provide a display device including the display panel described in the first aspect.

[0013] This invention provides a display panel that determines the extension directions of the first electrode edge and the second electrode edge of the first electrode in a sub-pixel based on the tangent of the circumscribed ellipse. The angle θ between the first electrode edge and the second electrode edge and the first direction satisfies... The angle formed by the first electrode edge and the second electrode edge is no longer fixed at 120°. Instead, the angle is defined by the shape of the circumscribed ellipse of the sub-pixel. The aspect ratio of the sub-pixel is close to the ratio of the horizontal axis to the vertical axis of the circumscribed ellipse. Here, the first direction is the length direction, and the second direction is the width direction. This improves the visual experience of the display. Attached Figure Description

[0014] Figure 1 This is a top view structural diagram of a display panel provided in an embodiment of the present invention;

[0015] Figure 2 For along Figure 1 A schematic diagram of a cross-sectional structure along the AA' direction;

[0016] Figure 3 A top view of an adjacent first sub-pixel and a second sub-pixel provided in an embodiment of the present invention;

[0017] Figure 4 for Figure 3 A top view of the structure of the polygonal edge of the first electrode in the middle;

[0018] Figure 5 A top view schematic diagram of another adjacent first sub-pixel and second sub-pixel provided in an embodiment of the present invention;

[0019] Figure 6 For along Figure 1 Another cross-sectional view of the structure along the AA' direction;

[0020] Figure 7 For along Figure 1 Another cross-sectional view of the structure along the AA' direction;

[0021] Figure 8 A top view schematic diagram of another adjacent first sub-pixel and second sub-pixel provided in an embodiment of the present invention;

[0022] Figure 9 A top view schematic diagram of another sub-pixel structure provided in an embodiment of the present invention;

[0023] Figure 10 A top-view structural diagram of another sub-pixel provided in an embodiment of the present invention;

[0024] Figure 11 for Figure 10 A top view of the structure of the central pixel aperture;

[0025] Figure 12 A top-view structural diagram of another sub-pixel provided in an embodiment of the present invention;

[0026] Figure 13 This is a top view of a display device provided in an embodiment of the present invention. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0028] When a display panel incorporates microlenses, a virtual image is formed due to the modulation of the microlenses. This virtual image contains a central light spot and an edge color-shifted halo. The shape of the virtual image is related to the pixel aperture shape. When the pixel aperture shape differs significantly from the display area shape, the virtual image and the display area do not overlap sufficiently, resulting in clearly visible edges of the virtual image and a poor viewing experience.

[0029] When the difference between the pixel aperture shape and the display area shape is small, such as when the aspect ratio of the pixel aperture is close to that of the display area, the display area and the virtual image overlap more, the edge color-shifting halo accounts for a smaller proportion in the virtual image, the edges are more blurred, and the virtual image problem is improved.

[0030] It's important to clarify that the difference between the pixel aperture shape and the display area shape does not refer to a difference in their geometric shapes, but rather to the overall shape of the final image formed by multiple pixel apertures, compared to the shape of the display area. For a rectangular display area, if the pixel apertures on a hexagonal anode are set to rectangular shapes, the pixel apertures will be too small. The resulting virtual image spot will not be able to fill the display area, resulting in a large area of ​​spot edge regions. This will actually produce more obvious virtual image edges and a worse visual experience compared to setting hexagonal pixel apertures.

[0031] Figure 1 This is a top view schematic diagram of a display panel provided in an embodiment of the present invention. Figure 2 For along Figure 1 A schematic diagram of a cross-sectional structure along the AA' direction. Figure 3 This is a top view schematic diagram of an adjacent first sub-pixel and second sub-pixel provided in an embodiment of the present invention. Figure 4 for Figure 3 A top view of the circumscribed ellipse of the polygonal edge of the first electrode, for reference. Figures 1-4The display panel includes a display area 10. In one embodiment, the display panel may include only the display area 10 to achieve full-screen display. In another embodiment, the display panel may also include a non-display area. The display area 10 is the area for image display, and the non-display area is the area where no image is displayed.

[0032] The display panel includes a substrate 11 and a plurality of sub-pixels 12. The plurality of sub-pixels 12 are located within a display area 10 on one side of the substrate 11. The plurality of sub-pixels 12 are arranged in rows along a first direction X, with adjacent rows of sub-pixels 12 staggered. The gaps between two sub-pixels 12 in adjacent rows overlap. The plurality of sub-pixels 12 includes a first sub-pixel 121 and a second sub-pixel 122 located in adjacent rows, respectively. The first sub-pixel 121 and the second sub-pixel 122 are adjacent. The coordinates of the center O1 of the first sub-pixel 121 are (0, 0), and the coordinates of the center O2 of the second sub-pixel 122 are (x1, y1).

[0033] Sub-pixel 12 includes a first electrode 13. The first electrode 13 is polygonal in shape, perpendicular to the substrate 11. The first electrode 13 includes a first electrode edge 131 and a second electrode edge 132 connected in sequence. Both the first electrode edge 131 and the second electrode edge 132 form an angle θ with the first direction. The angle between the first electrode edge 131 and the second electrode edge 132 is 2θ.

[0034] The length of the circumscribed ellipse 14 of the polygonal edge of the first electrode 13 along the horizontal axis of the first direction X is denoted as 'a', and the length of the circumscribed ellipse 14 along the vertical axis of the second direction Y is denoted as 'b', where the second direction Y is perpendicular to the first direction X. The circumscribed ellipse 14 can be located outside the first electrode 13, that is, the circumscribed ellipse 14 can be circumscribed outside the first electrode 13, or the circumscribed ellipse 14 can overlap with the edge of the first electrode 13. The center of the circumscribed ellipse 14 can coincide with the center of the first electrode 13. It should be noted that a circle is a special case of an ellipse, and the ellipse in the various embodiments of the present invention is an ellipse in a broad sense, including a circle.

[0035] The circumscribed ellipse 14 of the first sub-pixel 121 is denoted as the first circumscribed ellipse 141, and the circumscribed ellipse 14 of the second sub-pixel 122 is denoted as the second circumscribed ellipse 142. The first circumscribed ellipse 141 and the second circumscribed ellipse 142 are tangent at point C.

[0036] Each sub-pixel 12 has the same size and shape, and the circumscribed ellipse 14 of each sub-pixel 12 has the same size and shape. The first sub-pixel 121 and the second sub-pixel 122 have the same size and shape, and the first circumscribed ellipse 141 and the second circumscribed ellipse 142 have the same size and shape. Point C is the midpoint of line segment O1-O2, and the coordinates of point C are...

[0037] The equation of the ellipse satisfied by the first circumscribed ellipse 141 is:

[0038]

[0039] Point C lies on the first circumscribed ellipse 141. The line BB' of the first circumscribed ellipse 141 passing through point C is the tangent to the first circumscribed ellipse 141 at point C. The slope k of line BB' satisfies:

[0040]

[0041] Therefore, the extension direction of the first electrode side 131 is set according to the extension direction of the straight line BB', and the extension direction of the first electrode side 131 is parallel to the extension direction of the straight line BB'. Thus, θ satisfies:

[0042]

[0043] This invention provides a display panel in which the extension directions of the first electrode edge 131 and the second electrode edge 132 of the first electrode 13 in the sub-pixel 12 are determined based on the tangent of the circumscribed ellipse 14. The angle θ between the first electrode edge 131 and the second electrode edge 132 and the first direction X satisfies: The angle formed by the first electrode edge 131 and the second electrode edge 132 is no longer fixed at 120°. Instead, the angle is defined by the shape of the circumscribed ellipse 14 of the sub-pixel 12. The aspect ratio of the sub-pixel 12 is approximately the ratio of the horizontal axis to the vertical axis of the circumscribed ellipse 14. Here, the first direction X is the length direction, and the second direction Y is the width direction. This improves the visual appeal of the display.

[0044] It needs to be further explained that when the included angle θ satisfies The pixel opening corresponding to the first electrode 13 can typically include two shapes. One type of pixel opening is polygonal, similar in shape to the first electrode 13, thus achieving the maximum aperture ratio; the other type of pixel opening is elliptical (including circular), which can better improve the virtual image problem. Therefore, in the display panel provided by the embodiments of the present invention, the first electrode 13 can be matched with two different pixel openings, so when manufacturing display panels with two different pixel openings, only one type of mask for the first electrode 13 needs to be set.

[0045] It is understandable that more than two types of pixel openings can be used in conjunction with the first electrode 13 by changing the shape of the pixel opening, for example, by proportionally reducing the shape of the two types of pixel openings mentioned above, or by setting other arbitrary shapes that are different from the two types of pixel openings mentioned above.

[0046] Optionally, refer to Figures 1-4 The first electrode 13 is hexagonal, and also includes a third electrode side 133, a fourth electrode side 134, a fifth electrode side 135, and a sixth electrode side 136 connected sequentially. The third electrode side 133 connects the second electrode side 132 and the fourth electrode side 134, and the sixth electrode side 136 connects the fifth electrode side 135 and the first electrode side 131. Both the third electrode side 133 and the sixth electrode side 136 extend along a first direction X. The first electrode side 131 is parallel to the fourth electrode side 134, and the second electrode side 132 is parallel to the fifth electrode side 135.

[0047] For example, the apex angle of the hexagon formed by the first electrode 13 is no longer fixed at 120°. θ is greater than 60°, and the angle formed by the first electrode side 131 and the second electrode side 132 is greater than 120°. In other embodiments, θ may also be less than 60°, and the angle formed by the first electrode side 131 and the second electrode side 132 may be less than 120°.

[0048] For example, the shape of the first electrode 13 is not limited to hexagon; it can also be other shapes such as heptagon or octagon. For ease of understanding, it can be represented as... Figure 3 If one vertex of the first electrode 13 of the hexagon shown is removed, it will form a heptagon. The heptagon formed after removing the vertex can have the same center as the hexagon before removing the vertex. Therefore, it can be understood that the center of the sub-pixel 12 is taken as the center of the first electrode 13, or the center of the circumscribed ellipse 14 is taken as the center of the first electrode 13.

[0049] Optionally, refer to Figures 1-4 Let w be the width of display area 10 along the first direction X, and h be the height of display area 10 along the second direction Y. When ab, the following condition is met:

[0050]

[0051] When ab, the following condition is met:

[0052]

[0053] When the horizontal axis length *a* and vertical axis length *b* of the circumscribed ellipse 14 of the polygonal edge formed by the first electrode 13 satisfy the above formulas (4) and (5), the horizontal axis length *a* and vertical axis length *b* of the circumscribed ellipse 14 can be set according to the already determined width *w* and height *h* of the display area 10, thereby further determining the included angle *θ* and the shape of the first electrode 13. This results in a greater overlap between the display area 10 and the virtual image when the microlens is set, thus improving the virtual image problem.

[0054] Figure 5 This is a top view schematic diagram of another adjacent first sub-pixel and second sub-pixel structure provided in an embodiment of the present invention. Figure 6 For along Figure 1 Another cross-sectional view of the structure along the AA' direction is shown in the diagram. Figure 1 , Figure 5 and Figure 6 The polygon formed by the first electrode 13 includes a virtual polygon 15, and each virtual edge 150 of the virtual polygon 15 corresponds to and is parallel to each electrode edge 130 of the polygon formed by the first electrode 13. The number of virtual edges 150 of the virtual polygon 15 is equal to the number of electrode edges 130 of the first electrode 13.

[0055] The virtual ellipse 16 within the polygon formed by the first electrode 13 has a horizontal axis length of a·j along the first direction X and a vertical axis length of b·j along the second direction Y. 0 < j < 1. The virtual ellipse 16 is a proportionally reduced shape of the circumscribed ellipse 14, or in other words, the circumscribed ellipse 14 is a proportionally enlarged shape of the virtual ellipse 16. The virtual ellipse 16 is located within the virtual polygon 15 and is tangent to multiple virtual edges 150. In one embodiment, the virtual ellipse 16 is tangent to a portion of the virtual edges 150 within the virtual polygon 15. In another embodiment, the virtual ellipse 16 is tangent to all the virtual edges 150 within the virtual polygon 15.

[0056] The display panel also includes a pixel opening 17, the vertical projection of which onto the substrate 11 lies within a virtual polygon 15. Because a certain boundary value needs to be reserved for process variations, the virtual polygon 15 is located within the polygon formed by the first electrode 13. Similarly, considering process variations during the manufacturing of the display panel, the pixel opening 17 cannot exceed the area of ​​the virtual polygon 15.

[0057] Optionally, refer to Figure 5 The pixel opening 17 coincides with the virtual polygon 15. That is, the pixel opening 17 is set according to the range and position of the virtual polygon 15. The pixel opening 17 has a shape similar to the first electrode 13, and the pixel opening 17 has the maximum aperture ratio.

[0058] Optionally, refer to Figure 6 The display panel also includes a pixel defining layer 181, which is located on the side of the first electrode 13 away from the substrate 11, and the pixel defining layer 181 is provided with a plurality of pixel openings 17. Figure 6 The diagram illustrates a pixel opening 17. Pixel opening 17 is an opening in pixel defining layer 181. In other embodiments, the display panel may not include pixel defining layer 181, and pixel opening 17 may be defined by openings such as black matrices.

[0059] Figure 7 For along Figure 1 Another cross-sectional view of the structure along the AA' direction. Figure 8 This is a top view schematic diagram of another adjacent first sub-pixel and second sub-pixel provided in an embodiment of the present invention, with reference to... Figure 1 , Figure 7 and Figure 8 The display panel also includes a microlens 184, which is located on the side of the sub-pixel 12 away from the substrate 11. Perpendicular to the substrate 11, the microlens 184 overlaps with the virtual ellipse 16. That is, the area where the microlens 184 and the virtual ellipse 16 are located overlaps. By providing the microlens 184 in the display panel, the microlens 184 has a converging effect on the light passing through it, thereby achieving effects such as increasing luminous brightness.

[0060] For example, refer to Figure 7 and Figure 8 In a direction perpendicular to the substrate 11, the microlens 184 overlaps with the virtual polygon 15, the microlens 184 overlaps with the first electrode 13, and the microlens 184 overlaps with the sub-pixel 12.

[0061] Optionally, refer to Figure 8 The pixel opening 17 coincides with the virtual ellipse 16. That is, the pixel opening 17 is set according to the range and position of the virtual ellipse 16. The shape of the pixel opening 17 is relatively close to the shape of the display area 10, resulting in greater overlap between the display area 10 and the virtual image generated by the microlens 184. This reduces the proportion of edge color-shifting halos in the virtual image, thus improving the virtual image problem. On the other hand, the virtual ellipse 16 is tangent to multiple virtual edges 150, and its aperture ratio is relatively large, which is beneficial for improving the aperture ratio. In other words, when the pixel opening 17 coincides with the virtual ellipse 16, it represents the maximum aperture ratio that the display panel can have while ensuring the improvement of the virtual image problem. This embodiment of the invention can both maximize the improvement of the virtual image problem and maximize the aperture ratio.

[0062] Figure 9 This is a top-view structural diagram of another sub-pixel provided in an embodiment of the present invention. For clarity, the virtual polygon 15 and virtual ellipse 16 are shown with dashed lines, while the pixel opening 17 is shown with a solid line. (Reference) Figure 7 and Figure 9 The virtual ellipse 16 is located within the vertical projection of the pixel opening 17 onto the substrate 11, and the vertical projection of the pixel opening 17 onto the substrate 11 is located within the virtual polygon 15. The edge of the vertical projection of the pixel opening 17 onto the substrate 11 is located between the edge of the virtual ellipse 16 and the edge of the virtual polygon 15. In this embodiment, the virtual ellipse 16 is located within the vertical projection of the pixel opening 17 onto the substrate 11, and the area of ​​the pixel opening 17 is larger than the area of ​​the virtual ellipse 16, thus allowing for a larger aperture ratio.

[0063] Optionally, refer to Figure 9The pixel opening 17 includes multiple sequentially connected opening edges 170, with the number of opening edges 170 greater than the number of virtual edges 150. It can be understood that an ellipse can be considered as the shape of a polygon when the number of sides approaches infinity. The more opening edges 170 there are, the closer the pixel opening 17 is to the ellipse that best improves the virtual image problem. In this embodiment of the invention, the number of opening edges 170 is set to be greater than the number of virtual edges 150 to improve the virtual image problem when the display panel is equipped with microlenses 184.

[0064] Figure 10 This is a top view schematic diagram of another sub-pixel structure provided in an embodiment of the present invention. Figure 11 for Figure 10 A top-view structural diagram of the mid-pixel aperture. For clarity, the first type of aperture edge 1701 is shown in bold. (See reference) Figure 10 and Figure 11 The virtual polygon 15 includes n virtual edges 150. The pixel opening 17 includes 2n opening edges 170, each including n first-type opening edges 1701 and n second-type opening edges 1702. A first-type opening edge 1701 connects to two second-type opening edges 1702, and a second-type opening edge 1702 connects to two first-type opening edges 1701. The first-type opening edges 1701 and second-type opening edges 1702 are spaced apart. The n first-type opening edges 1701 correspond one-to-one with the n virtual edges 150 and are parallel. The second-type opening edges 1702 are curves that bulge away from the center of the sub-pixel. In this embodiment of the invention, each second-type opening edge 1702 is a curve bulging towards the virtual polygon 15, thereby increasing the area of ​​the pixel opening 17 and increasing the aperture ratio.

[0065] For example, refer to Figure 10 and Figure 11Taking n=6 as an example, the virtual polygon 15 includes 6 virtual edges 150, which are the first virtual edge 151, the second virtual edge 152, the third virtual edge 153, the fourth virtual edge 154, the fifth virtual edge 155, and the sixth virtual edge 156 connected in sequence. The pixel opening 17 includes 12 opening edges 170, which are the first opening edge 171, the second opening edge 172, the third opening edge 173, the fourth opening edge 174, the fifth opening edge 175, the sixth opening edge 176, the seventh opening edge 177, the eighth opening edge 178, the ninth opening edge 179, the tenth opening edge 1710, the eleventh opening edge 1711, and the twelfth opening edge 1712 connected in sequence. The first opening edge 171, the third opening edge 173, the fifth opening edge 175, the seventh opening edge 177, the ninth opening edge 179, and the eleventh opening edge 1711 are the first type of opening edge 1701. The second open edge 172, the fourth open edge 174, the sixth open edge 176, the eighth open edge 178, the tenth open edge 1710, and the twelfth open edge 1712 are second-type open edges 1702. The first open edge 171 is parallel to the first virtual edge 151, the third open edge 173 is parallel to the second virtual edge 152, the fifth open edge 175 is parallel to the third virtual edge 153, the seventh open edge 177 is parallel to the fourth virtual edge 154, the ninth open edge 179 is parallel to the fifth virtual edge 155, and the eleventh open edge 1711 is parallel to the sixth virtual edge 156.

[0066] For example, refer to Figure 10 The first electrode edge 131 is parallel to the first virtual edge 151, the second electrode edge 132 is parallel to the second virtual edge 152, the third electrode edge 133 is parallel to the third virtual edge 153, the fourth electrode edge 134 is parallel to the fourth virtual edge 154, the fifth electrode edge 135 is parallel to the fifth virtual edge 155, and the sixth electrode edge 136 is parallel to the sixth virtual edge 156.

[0067] Figure 12 This is a top-view structural diagram of another sub-pixel provided in an embodiment of the present invention, with reference to... Figure 7 and Figure 12 The vertical projection of the pixel opening 17 onto the substrate 11 lies within the virtual ellipse 16. The pixel opening 17 includes multiple sequentially connected opening edges 170, and the number of opening edges 170 is greater than the number of virtual edges 150.

[0068] Optionally, refer to Figure 7The display panel further includes a pixel defining layer 181, located on the side of the first electrode 13 away from the substrate 11, and has multiple pixel openings 17. The sub-pixel 12 also includes a light-emitting functional layer 182 and a second electrode 183. The light-emitting functional layer 182 is located between the first electrode 13 and the second electrode 183, and is situated within the pixel openings 17. The second electrode 183 is located on the side of the light-emitting functional layer 182 away from the substrate 11. The display panel provided in this embodiment is an organic light-emitting display panel. In other embodiments, the display panel may also be a liquid crystal display panel or other types of display panels.

[0069] This invention also provides a display device. Figure 13 This is a top view schematic diagram of a display device provided in an embodiment of the present invention, with reference to... Figure 13 The display device includes any of the display panels provided in the embodiments of the present invention. Specifically, the display device can be a mobile phone, a tablet computer, or a smart wearable device, etc.

[0070] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, Including the display area; Substrate; Multiple sub-pixels are located in the display area on one side of the substrate; the multiple sub-pixels are arranged in rows along a first direction, with adjacent rows of sub-pixels interleaved, including a first sub-pixel and a second sub-pixel located in adjacent rows respectively; the coordinates of the center of the first sub-pixel are (0, 0), and the coordinates of the center of the second sub-pixel are (x1, y1). The sub-pixel includes a first electrode; perpendicular to the substrate, the first electrode is polygonal, including a first electrode side and a second electrode side connected in sequence, and the angle between the first electrode side and the second electrode side and the first direction is θ; The length of the horizontal axis of the circumscribed ellipse of the polygonal edge of the first electrode along the first direction is denoted as a, and the length of the vertical axis of the circumscribed ellipse along the second direction is denoted as b, wherein the second direction is perpendicular to the first direction. The circumscribed ellipse of the first sub-pixel is tangent to the circumscribed ellipse of the second sub-pixel; θ satisfies:

2. The display panel according to claim 1, characterized in that, The first electrode is hexagonal and includes a third electrode side, a fourth electrode side, a fifth electrode side, and a sixth electrode side connected in sequence. The third electrode side connects the second electrode side and the fourth electrode side, and the sixth electrode side connects the fifth electrode side and the first electrode side. Both the third electrode edge and the sixth electrode edge extend along the first direction, the first electrode edge is parallel to the fourth electrode edge, and the second electrode edge is parallel to the fifth electrode edge.

3. The display panel according to claim 1, characterized in that, The width of the display area along the first direction is denoted as w, and the height along the second direction is denoted as h; When a > b, the following condition is satisfied: When a < b, the following condition is satisfied:

4. The display panel according to claim 1, characterized in that, The polygon formed by the first electrode includes a virtual polygon, and each virtual edge of the virtual polygon corresponds to and is parallel to each electrode edge of the polygon formed by the first electrode. The length of the virtual ellipse within the polygon formed by the first electrode along the first direction is a·j, and the length of the virtual ellipse along the second direction is b·j. 0＜j＜1； The virtual ellipse is located within the virtual polygon and is tangent to multiple virtual edges; The display panel also includes pixel openings, the vertical projection of which onto the substrate lies within the virtual polygon.

5. The display panel according to claim 4, characterized in that, The pixel opening coincides with the virtual polygon.

6. The display panel according to claim 4, characterized in that, It also includes a microlens located on the side of the sub-pixel away from the substrate; The microlens overlaps with the virtual ellipse in a direction perpendicular to the substrate.

7. The display panel according to claim 6, characterized in that, The pixel opening coincides with the virtual ellipse.

8. The display panel according to claim 6, characterized in that, The virtual ellipse is located within the vertical projection of the pixel opening onto the substrate, and the vertical projection of the pixel opening onto the substrate is located within the virtual polygon.

9. The display panel according to claim 8, characterized in that, The pixel opening includes multiple opening edges connected in sequence, and the number of opening edges is greater than the number of virtual edges.

10. The display panel according to claim 9, characterized in that, The virtual polygon includes n virtual edges; The pixel opening includes 2n opening edges, which include n first-type opening edges and n second-type opening edges, with the first-type opening edges connecting two second-type opening edges. The n first-type open edges correspond one-to-one with the n virtual edges; The second type of opening edge is a curve that bulges out in a direction away from the center of the sub-pixel.

11. The display panel according to claim 6, characterized in that, The vertical projection of the pixel opening onto the substrate lies within the virtual ellipse; The pixel opening includes multiple opening edges connected in sequence, and the number of opening edges is greater than the number of virtual edges.

12. The display panel according to claim 4, characterized in that, It also includes a pixel defining layer, which is located on the side of the first electrode away from the substrate and has a plurality of pixel openings. The sub-pixel further includes a light-emitting functional layer and a second electrode. The light-emitting functional layer is located between the first electrode and the second electrode and is located within the pixel opening. The second electrode is located on the side of the light-emitting functional layer away from the substrate.

13. A display device, characterized in that, Includes the display panel as described in any one of claims 1-12.

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