Display panel and display device

Abstract

The present disclosure relates to the technical field of display, and discloses a display panel and a display device. The display panel comprises a display area and a non-display area. The display area comprises a planar display area and a peripheral display area. The peripheral display area is arranged outside the planar display area. The peripheral display area comprises at least two side display areas and at least one corner display area. The corner display area is connected between two adjacent side display areas and a corner of the planar display area. The pixel arrangement of the planar display area is the same as that of the peripheral display area. The non-display area comprises a corner non-display area. The corner non-display area is connected to a side of the corner display area away from the planar display area. The corner non-display area is provided with an opening and a shift register. The opening is located between two adjacent shift registers. The display panel can avoid the generation of wrinkles.

Description

Technical Field

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

[0002] A quad-curved screen has curved edges on all four sides to form curved display sections. Quad-curved screens offer higher visibility, a better grip, and the curved display sections can be expanded with different functions, such as virtual buttons and ambient lighting. These advantages have garnered significant attention.

[0003] However, the connection between adjacent curved display sections of a four-curved screen is prone to wrinkling.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a display panel and display device.

[0006] According to one aspect of this disclosure, a display panel is provided, comprising: The display area includes a planar display area and a peripheral display area. The peripheral display area surrounds the outside of the planar display area and includes at least two side display areas and at least one corner display area. The corner display area is connected between two adjacent side display areas and at the corner of the planar display area. The pixel arrangement of the planar display area is the same as that of the peripheral display area. The non-display area includes a corner non-display area, which is connected to the side of the corner display area away from the planar display area. The corner non-display area is provided with an opening and a shift register, and the opening is located between two adjacent shift registers.

[0007] In one exemplary embodiment of this disclosure, the density of the openings increases as the distance from the first center line decreases, the first center line being the extension of the angle bisector of the corner of the planar display area.

[0008] In one exemplary embodiment of this disclosure, the corner display area includes at least a first arc line, a first straight edge line, and a second straight edge line connected end to end in sequence, the length of the first straight edge line being equal to the length of the second straight edge line; the corner non-display area includes at least a second arc line, a third straight edge line, the first arc line, and a fourth straight edge line connected end to end in sequence, the length of the third straight edge line being equal to the length of the fourth straight edge line.

[0009] In one exemplary embodiment of this disclosure, the first arc satisfies the following formula: X n +Y n =a n Where X is the abscissa of each point on the first arc in the Cartesian coordinate system, Y is the ordinate of each point on the first arc in the Cartesian coordinate system, a is the length of the first straight edge, and n = 1 to infinity. And / or, the second arc satisfies the following equation: X1 n +Y1 n =(a+a1) n Where X1 is the x-coordinate of each point on the second arc in the Cartesian coordinate system, Y1 is the y-coordinate of each point on the second arc in the Cartesian coordinate system, a is the length of the first straight edge, and a1 is the length of the third straight edge.

[0010] In one exemplary embodiment of this disclosure, the extension direction of the opening is perpendicular to the second arc.

[0011] In one exemplary embodiment of this disclosure, the opening extends from a second arc of the corner non-display area to a first arc of the corner display area.

[0012] In one exemplary embodiment of this disclosure, the extension direction of the shift register is perpendicular to the second arc.

[0013] In one exemplary embodiment of this disclosure, the display panel further includes: A dummy shift register is provided in the corner non-display area, the extension direction of the dummy shift register is perpendicular to the second arc, and the dummy shift register is located between two adjacent shift registers.

[0014] In one exemplary embodiment of this disclosure, in a first direction, the width of the opening is greater than or equal to 30 micrometers and less than or equal to 300 micrometers, or the width of the opening is greater than or equal to 100 micrometers and less than or equal to 150 micrometers, the first direction being parallel to the display panel and perpendicular to the extension direction of the opening.

[0015] In one exemplary embodiment of this disclosure, the display panel includes: Substrate; A driving layer group is disposed on one side of the substrate, and the driving layer group includes multiple driving circuits arranged in an array. A light-emitting layer group is disposed on the side of the driving layer group away from the substrate. The light-emitting layer group includes a plurality of light-emitting devices arranged in an array. The driving circuit is electrically connected to the light-emitting devices to drive the light-emitting devices to emit light. An encapsulation layer group is disposed on the side of the light-emitting layer group opposite to the substrate. The encapsulation layer group includes an organic layer in the corner display area, and the organic layer is located within the display area.

[0016] In one exemplary embodiment of this disclosure, a first recessed structure is provided on the display panel, the first recessed structure being disposed along the edge of the display area, and the driving layer group includes: A first protrusion is located in the display area, and at the opening, the first protrusion protrudes from the sidewall of the first recessed structure.

[0017] In one exemplary embodiment of this disclosure, the light-emitting layer group includes: The first electrode is disposed on the side of the driving layer group away from the substrate. A pixel definition layer is disposed on the side of the first electrode away from the substrate, and a pixel opening is provided on the pixel definition layer, the pixel opening being connected to the first electrode; A light-emitting layer, a portion of which is located within the pixel opening, the light-emitting layer including a common film layer covering the pixel opening and the pixel definition layer, wherein the common film layer is interrupted by the first protrusion at the opening; The second electrode is disposed on the side of the light-emitting layer away from the substrate, and at the opening, the second electrode is separated by the first protrusion.

[0018] In an exemplary embodiment of this disclosure, the driving layer group includes a connecting conductor layer, the connecting conductor layer includes connecting electrodes and auxiliary portions spaced apart; the first electrode includes an electrode portion and a first transition portion spaced apart, the first transition portion is electrically connected to the auxiliary portion, a first via is provided on the common film layer, and the second electrode is electrically connected to the first transition portion through the first via.

[0019] In one exemplary embodiment of this disclosure, the shift register is provided in the non-display area, and the display panel further includes: A first isolation dam is located on the side of the shift register away from the display area. The first isolation dam includes a plurality of first sub-isolation dams spaced apart, such that a first groove is provided between two adjacent first sub-isolation dams. The first groove is located in the corner non-display area and is connected to the opening. The second isolation dam is located on the side of the first isolation dam away from the display area. The second isolation dam includes a plurality of second sub-isolation dams spaced apart, such that a second groove is provided between two adjacent second sub-isolation dams. The second groove is located in the corner non-display area and communicates with the opening. The second sub-isolation dam includes a second protruding structure that protrudes from the groove sidewall of the second groove. A portion of the film layer of the encapsulation layer group covers the first isolation dam and the second isolation dam.

[0020] In one exemplary embodiment of this disclosure, the display panel further includes: The first partition structure is arranged in a ring shape along the edge of the display panel.

[0021] In one exemplary embodiment of this disclosure, the display panel further includes: The second partition structure is located on the side of the first partition structure closest to the display area.

[0022] In one exemplary embodiment of this disclosure, the corner non-display area is divided into at least two sub-corner non-display areas by the opening, the second partition structure is configured to be annular around the sub-corner non-display areas, and the portion of the second partition structure near the display area is connected to the first partition structure.

[0023] In one exemplary embodiment of this disclosure, the display panel further includes: The third partition structure is arranged in a ring shape along the edge of the display area, and the third partition structure is located on the side of the first partition structure and the second partition structure that is close to the display area.

[0024] In one exemplary embodiment of this disclosure, the first partition structure includes at least one first undercut structure, the first undercut structure comprising: First membrane layer; The second film layer is disposed on the side of the first film layer away from the substrate. The orthographic projection of the first film layer on the substrate is located within the orthographic projection of the second film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the first film layer on the substrate and the edge line of the orthographic projection of the second film layer on the substrate. Near the edge of the opening, the second partition structure includes at least one second undercut structure, the second undercut structure comprising: Third membrane layer; The fourth film layer is disposed on the side of the third film layer away from the substrate. The orthographic projection of the third film layer on the substrate is located within the orthographic projection of the fourth film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the third film layer on the substrate and the edge line of the orthographic projection of the fourth film layer on the substrate. Near the edge of the opening, the third partition structure includes at least one third undercut structure, the third undercut structure comprising: Fifth film layer; A sixth film layer is disposed on the side of the fifth film layer away from the substrate. The orthographic projection of the fifth film layer on the substrate is located within the orthographic projection of the sixth film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the fifth film layer on the substrate and the edge line of the orthographic projection of the sixth film layer on the substrate.

[0025] In one exemplary embodiment of this disclosure, the opening extends through the display panel in a third direction, and the third direction is perpendicular to the substrate.

[0026] In one exemplary embodiment of this disclosure, the pixel density of the planar display area is the same as the pixel density of the surrounding display area.

[0027] In one exemplary embodiment of this disclosure, the sub-pixels in the edge region of the corner display area near the corner non-display area are arranged in a stepped manner.

[0028] According to another aspect of this disclosure, a display device is provided, comprising: The display panel is any one of the display panels described above; A cover plate is disposed on the display side of the display panel. The cover plate includes a planar area and a peripheral curved area. The peripheral curved area includes a side curved area and a corner curved area. The planar area is disposed opposite to the planar display area, the side curved area is disposed opposite to the side display area, and the corner curved area is disposed opposite to the corner display area.

[0029] The display panel disclosed herein has several advantages. First, the opening reduces the circumferential compression ratio during bonding of the display panel and the cover plate, thereby mitigating or even preventing wrinkles and improving product yield. It also reduces bonding difficulty and increases production efficiency. Second, since the opening is located in a corner non-display area, it does not affect the display effect of the display area, and no black bars appear in the corner display area due to the opening. Moreover, this design ensures that the pixel arrangement of the flat display area is the same as that of the surrounding display area, and the pixel density of the flat display area is the same as that of the surrounding display area. This guarantees that the display effect of the flat display area is consistent with that of the surrounding display area, preventing poor display effects caused by low resolution in the surrounding display area.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0031] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0032] Figure 1 This is a schematic diagram of the region division structure of an example embodiment of the display panel of this disclosure.

[0033] Figure 2 This is a schematic diagram comparing the circumferential compression ratio of a display panel without an opening with that of the display panel disclosed herein.

[0034] Figure 3 for Figure 1 A structural diagram showing a corner display area and a corner non-display area.

[0035] Figure 4 This is a schematic diagram showing the relationship between the ratio of the lengths of the two straight edges at the corner of the display panel and the circumferential compression ratio.

[0036] Figure 5 This is a schematic diagram of an example embodiment of a corner portion of the display panel of this disclosure.

[0037] Figure 6 This is a structural schematic diagram of another example embodiment of a corner portion of the display panel of this disclosure.

[0038] Figure 7 This is a cross-sectional view of the display area of ​​the display panel of this disclosure.

[0039] Figure 8 In accordance with Figure 6 A cross-sectional view of the MM section in the diagram.

[0040] Figure 9 In accordance with Figure 6 A schematic diagram of the NN section in the diagram.

[0041] Figure 10 In accordance with Figure 6 A cross-sectional view of QQ section in the diagram.

[0042] Figure 11 This is a partial structural diagram of a corner of the display panel of this disclosure.

[0043] Figure 12 In accordance with Figure 11 A schematic diagram of a cross-section cut by CC.

[0044] Figure 13 In accordance with Figure 11 A sectional view diagram of the DD section in the diagram.

[0045] Figure 14 This is a structural schematic diagram of another example embodiment of a corner portion of the display panel of this disclosure.

[0046] Figure 15 This is a schematic diagram of the structure of the cover plate of the display device disclosed herein.

[0047] Explanation of reference numerals in the attached figures: 1. Substrate; 2. Driving layer group; 21. Active layer; 211. Source connection portion; 212. Channel portion; 213. Drain connection portion; 22. First gate insulating layer; 23. Gate; 24. Second gate insulating layer; 25. Interlayer dielectric layer; 26. First connecting conductor layer; 261. Source; 262. Drain; 27. Protective layer; 281. First planarization layer; 2811. First sub-recessed structure; 282. Second planarization layer; 2821. Second sub-recessed structure; 29. ​​Second connecting conductor layer; 29a. Connecting conductor layer; 29a1. Auxiliary portion; 292. Second drain; 201. First protrusion; 3. Light-emitting layer group; 31. First electrode; 311. Electrode part; 312. First transition part; 32. Pixel definition layer; 33. Light-emitting layer; 33a. Common film layer; 33a1. First via; 34. Second electrode; 35. Sub-pixel; 4. Encapsulation layer group; 41. First inorganic layer; 42. Organic layer; 43. Second inorganic layer; 5. Shift register; 5a. Dummy shift register; 6. First concave structure; 71. First partition structure; 711. First undercut structure; 7111. First membrane layer; 7112. Second membrane layer; 72. Second partition structure; 721. Second undercut structure; 7211. Third membrane layer; 7212. Fourth membrane layer; 73. Third partition structure; 731. Third undercut structure; 7311. Fifth membrane layer; 7312. Sixth membrane layer; AA, Display Area; AAP, Flat Display Area; AAZ, Peripheral Display Area; AAZC, Side Display Area; AAZJ, Corner Display Area; AAZJ1, First Curve; AAZJ2, First Straight Edge; AAZJ3, Second Straight Edge; NAA, Non-display area; NAAC, Side non-display area; NAAJ, Corner non-display area; NAAJZ, Sub-corner non-display area; NAAJ1, Second arc; NAAJ2, Third straight edge; NAAJ3, Fourth straight edge; KK, Opening; DAM1, First isolation dam; DAM11, First sub-isolation dam; DAM12, First groove; DAM2, second isolation dam; DAM21, second sub-isolation dam; DAM22, second groove; DAM23, second protruding structure; CG, cover plate; CGP, planar area; CGZ, peripheral curved area; CGZC, side curved area; CGZJ, corner curved area; X, the first direction; Z, the third direction. Detailed Implementation

[0048] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore detailed descriptions of them will be omitted. Furthermore, the drawings are merely illustrative of this disclosure and are not necessarily drawn to scale.

[0049] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0050] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first,” “second,” and “third,” etc., are used only as markers and are not a limitation on the number of objects.

[0051] In this application, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0052] This disclosure provides an example embodiment of a display panel, with reference to... Figures 1-13 As shown, the display panel may include a display area AA and a non-display area NAA; the display area AA may include a planar display area AAP and a peripheral display area AAZ, the peripheral display area AAZ surrounds the outside of the planar display area AAP, the peripheral display area AAZ may include at least two side display areas AAZC and at least one corner display area AAZJ, the corner display area AAZJ is connected between two adjacent side display areas AAZC and is connected to the corner of the planar display area AAP, the pixel arrangement of the planar display area AAP is the same as the pixel arrangement of the peripheral display area AAZ; the non-display area NAA may include a corner non-display area NAAJ, the corner non-display area NAAJ is connected to the side of the corner display area AAZJ away from the planar display area AAP, the corner non-display area NAAJ is provided with an opening KK and a shift register 5, the opening KK is located between two adjacent shift registers 5.

[0053] The display panel disclosed herein, on the one hand, reduces the circumferential compression rate when the display panel and cover plate CG are bonded together through the opening KK, thereby reducing or even avoiding the generation of wrinkles and improving product yield; it also reduces bonding difficulty and improves production efficiency. On the other hand, since the opening KK is located in the corner non-display area NAAJ, the opening KK will not affect the display effect of the display area AA, and the corner display area AAZJ will not have a black bar display effect caused by the opening KK; moreover, this setting ensures that the pixel arrangement of the flat display area AAP is the same as that of the surrounding display area AAZ, and the pixel density of the flat display area AAP is the same as that of the surrounding display area AAZ, thereby ensuring that the display effect of the flat display area AAP is consistent with the display effect of the surrounding display area AAZ, and avoiding the poor display effect caused by the low resolution of the surrounding display area AAZ.

[0054] In this example embodiment, the display panel is a flexible display panel, which allows the display panel to be bent.

[0055] Reference Figure 1 As shown, the display panel may include a display area AA and a non-display area NAA; the non-display area NAA may surround the outer perimeter of the display area AA. The shape of the non-display area NAA is adapted to the shape of the display area AA. For example, the display area AA may be set as a rounded rectangle, and the non-display area NAA may be set as a rounded rectangular frame; the display area AA may be set as a rounded trapezoid, and the non-display area NAA may be set as a rounded trapezoidal frame. Of course, the shapes of the display area AA and the non-display area NAA can also be other shapes, which will not be described in detail here.

[0056] In addition, in some other example embodiments of this disclosure, the non-display area NAA may be surrounded by the adjacent two sides or the adjacent three sides of the display area AA.

[0057] Reference Figure 1 As shown, the display area AA may include a planar display area AAP and a peripheral display area AAZ. The peripheral display area AAZ surrounds the planar display area AAP. The shape of the peripheral display area AAZ matches the shape of the planar display area AAP. For example, the planar display area AAP may be rectangular, and the peripheral display area AAZ may be a rectangular frame; the planar display area AAP may be trapezoidal, and the peripheral display area AAZ may be a trapezoidal frame. Of course, the shapes of the planar display area AAP and the peripheral display area AAZ can also be other shapes, which will not be described in detail here.

[0058] Reference Figure 15As shown, after the display panel and the cover plate CG are bonded together, the flat display area AAP is set opposite to the flat area CGP of the cover plate CG, so that the flat display area AAP is in a flat state and does not need to be bent; while the peripheral display area AAZ is set opposite to the peripheral curved area CGZ of the cover plate CG, so that the peripheral display area AAZ is in a curved state and needs to be bent.

[0059] The peripheral display area AAZ may include at least two side display areas AAZC and at least one corner display area AAZJ. The corner display area AAZJ is connected between two adjacent side display areas AAZC and is connected to the corner of the planar display area AAP.

[0060] Specifically, refer to Figure 1 As shown, the peripheral display area AAZ can include four side display areas AAZC and four corner display areas AAZJ. The four side display areas AAZC and four corner display areas AAZJ are alternately arranged and connected end to end in sequence. That is, a corner display area AAZJ is connected between two adjacent side display areas AAZC, and a side display area AAZC is connected between two adjacent corner display areas AAZJ. The four side display areas AAZC are connected one-to-one to the four straight edges of the planar display area AAP, and the four corner display areas AAZJ are connected one-to-one to the four corners of the planar display area AAP.

[0061] Of course, in some other exemplary embodiments of this disclosure, the peripheral display area AAZ may include three side display areas AAZC and two corner display areas AAZJ, which are alternately arranged and connected sequentially. The three side display areas AAZC are connected one-to-one to the three straight edges of the planar display area AAP, and the two corner display areas AAZJ are connected one-to-one to the two corners of the planar display area AAP.

[0062] In addition, different shaped display panels have different numbers of side display areas (AAZC) and corner display areas (AAZJ), which will not be elaborated here.

[0063] The side display area AAZC and the side curved area CGZC of the cover plate CG are positioned opposite each other. Both the side display area AAZC and the side curved area CGZC can be curved to form a cylindrical surface, giving the side display area AAZC a bending radius. The corner display area AAZJ and the corner curved area CGZJ of the cover plate CG are positioned opposite each other. Both the corner display area AAZJ and the corner curved area CGZJ can be curved to form a spherical surface, giving the corner display area AAZJ two bending radii.

[0064] Of course, the side display area AAZC and the side curved area CGZC can also be curved to form elliptical cylinders, parabolic cylinders, and other regular or irregular curved cylinders; the corner display area AAZJ and the corner curved area CGZJ can also be curved to form ellipsoids, parabolic surfaces of revolution, and other regular or irregular three-dimensional curved surfaces.

[0065] The pixel arrangement of the flat display area AAP is the same as that of the surrounding display area AAZ. For example, the pixel arrangement of the flat display area AAP can be a GGRB structure, and the pixel arrangement of the surrounding display area AAZ can also be a GGRB structure. Alternatively, the pixel arrangement of the flat display area AAP can be a blue diamond structure, and the pixel arrangement of the surrounding display area AAZ can also be a blue diamond structure. In a blue diamond structure, blue sub-pixels are arranged in a diamond shape to form a 45° symmetrical grid structure. Red and green sub-pixels alternately fill the gaps between the diamonds, with the density of green sub-pixels being twice that of red / blue sub-pixels. The pixel arrangement of the flat display area AAP and the surrounding display area AAZ can also be a diamond pixel arrangement structure. In this structure, red and blue sub-pixels alternately form the first pixel column, and green sub-pixels form the second pixel column. The first and second pixel columns alternate, and the sub-pixels in the first pixel column are staggered with those in the second pixel column. The pixel arrangement of the flat display area AAP and the pixel arrangement of the surrounding display area AAZ can also be a Real RGB pixel arrangement structure. Of course, there are other arrangements as well, which will not be described in detail here.

[0066] Moreover, the pixel density of the flat display area AAP is the same as that of the surrounding display area AAZ. Pixel density (Pixels Per Inch, PPI) refers to the number of pixels contained in one inch.

[0067] This setting ensures that the display effect of the flat display area AAP is consistent with that of the surrounding display area AAZ, avoiding the poor display effect caused by the low resolution of the surrounding display area AAZ.

[0068] Reference Figure 1As shown, the non-display area NAA can include side non-display areas NAAC and corner non-display areas NAAJ. Specifically, the non-display area NAA can include four side non-display areas NAAC and four corner non-display areas NAAJ. The four side non-display areas NAAC and four corner non-display areas NAAJ are alternately arranged and connected end to end in sequence. That is, the corner non-display area NAAJ is connected between two adjacent side non-display areas NAAC, and the side non-display areas NAAC are connected between two adjacent corner non-display areas NAAJ. The side non-display areas NAAC are connected to the side of the side display area AAZC that is away from the flat display area AAP, and the corner non-display areas NAAJ are connected to the side of the corner display area AAZJ that is away from the flat display area AAP.

[0069] An opening (KK) is provided in the corner non-display area (NAAJ). This opening (KK) reduces the circumferential compression ratio when the display panel and cover plate (CG) are bonded, thereby mitigating or even preventing wrinkles and improving product yield. (Refer to...) Figure 2 As shown, when the bonding depth is 1mm, without an opening KK on the display panel, the circumferential compression ratio ΔL% is approximately 2.04%. After setting an opening KK with an extension length of 0.75mm in the corner non-display area NAAJ, the circumferential compression ratio ΔL% of the display panel is approximately 0.89%, a decrease of 56%. Setting an opening KK can also reduce bonding difficulty and improve production efficiency. Moreover, setting an opening KK can also increase the bonding depth and bonding angle, making the non-display area NAA smaller from a normal viewing angle, achieving an ultimate quad-curved display effect, and increasing the added value of the product.

[0070] Since the opening KK is located in the corner non-display area NAAJ, the opening KK will not affect the display effect of the display area AA, and the corner display area AAZJ will not have a black bar display effect due to the opening KK. Moreover, this setting ensures that the pixel arrangement of the flat display area AAP is the same as that of the surrounding display area AAZ, and the pixel density of the flat display area AAP is the same as that of the surrounding display area AAZ. This guarantees that the display effect of the flat display area AAP is consistent with the display effect of the surrounding display area AAZ, and avoids the poor display effect caused by the low resolution of the surrounding display area AAZ.

[0071] The opening KK can be formed by laser ablation after the display panel is fabricated, or it can be formed directly by etching during the fabrication of the display panel.

[0072] In some exemplary embodiments of this disclosure, reference is made to Figure 3As shown, the density of openings KK increases as the distance from the first center line L1 decreases. In other words, the closer to the first center line L1, the greater the density of openings KK; conversely, the closer to the first center line L1, the smaller the spacing between two adjacent openings KK. Since the circumferential compression ratio is greater closer to the first center line L1 during the bonding of the display panel and the cover plate CG, setting the density of openings KK to increase as the distance from the first center line L1 decreases can reduce the circumferential compression ratio near the first center line L1, thereby mitigating or even avoiding wrinkles near the first center line L1, improving product yield, further reducing bonding difficulty, and increasing production efficiency.

[0073] Of course, in some other exemplary embodiments of this disclosure, the density of the openings KK can also be uniform; or the arrangement of the openings KK can be irregular, which will not be elaborated here.

[0074] It should be noted that the first center line L1 is the extension of the angle bisector of the corner of the planar display area AAP.

[0075] In some exemplary embodiments of this disclosure, reference is made to Figure 3 As shown, the corner display area AAZJ may include at least a first arc line AAZJ1, a first straight edge line AAZJ2, and a second straight edge line AAZJ3 connected end to end in sequence, so that the corner display area AAZJ is approximately fan-shaped; the length of the first straight edge line AAZJ2 is equal to the length of the second straight edge line AAZJ3.

[0076] Reference Figure 4 As shown, the closer the ratio k of the lengths of the two straight edges at the corner of the display panel is to 1, the closer the circumferential compression rate ΔL% is to 0. Similarly, the closer the ratio k of the length a of the first straight edge AAZJ2 to the length b of the second straight edge AAZJ3 is to 1, the closer the circumferential compression rate ΔL% is to 0. Therefore, having the length of the first straight edge AAZJ2 equal to the length of the second straight edge AAZJ3 can reduce the circumferential compression rate of the corner display area AAZJ, thereby mitigating or even avoiding wrinkles in the corner display area AAZJ, improving product yield, further reducing bonding difficulty, and increasing production efficiency.

[0077] Reference Figure 3 As shown, the corner non-display area NAAJ includes at least the second arc line NAAJ1, the third straight edge line NAAJ2, the first arc line AAZJ1, and the fourth straight edge line NAAJ3 connected end to end in sequence, so that the corner non-display area NAAJ is roughly a fan-shaped ring; the length of the third straight edge line NAAJ2 is equal to the length of the fourth straight edge line NAAJ3.

[0078] Since the outer arc of the corner display area AAZJ is collinear with the inner arc of the corner non-display area NAAJ, the first arc AAZJ1 belongs to both the corner display area AAZJ and the corner non-display area NAAJ.

[0079] Similarly, refer to Figure 4 As shown, the length a1 of the third straight edge line NAAJ2 is equal to the length b1 of the fourth straight edge line NAAJ3. This makes the sum of the length a1 of the third straight edge line NAAJ2 and the length a of the first straight edge line AAZJ2 equal to the sum of the length b1 of the fourth straight edge line NAAJ3 and the length b of the second straight edge line AAZJ3. Consequently, the ratio k of the lengths of the two straight edges at the corner of the display panel is equal to 1. This makes the circumferential compression ratio ΔL% at the corner of the display panel closer to 0, which can reduce the circumferential compression ratio of the non-display area NAAJ in the corner, thereby reducing or even avoiding wrinkles in the non-display area NAAJ in the corner, improving product yield, further reducing bonding difficulty, and improving production efficiency.

[0080] The first straight edge AAZJ2 and the third straight edge NAAJ2 are set collinearly, the second straight edge AAZJ3 and the fourth straight edge NAAJ3 are set collinearly, and the first arc AAZJ1 and the second arc NAAJ1 are set parallel to each other.

[0081] In this example embodiment, the four corner display areas AAZJ and the four corner non-display areas NAAJ of the display panel are configured in such a way that wrinkles are less likely to occur at the four corners of the display panel; moreover, the four corners of the display panel can maintain the same bonding depth, and the minimum bonding compression rate can be ensured, reducing bonding difficulty and improving bonding yield.

[0082] For applications requiring fan-out routing and where the length of the NAAC (non-display area) on the side of the display driver chip IC is relatively small, for example... Figure 1 The non-display area NAAC is located on the lower side; some fan-out traces can be located in the display area AA, for example, those that should originally be from... Figure 1 The fan-out traces originating from the two corner display areas AAZJ located at the bottom are too narrow in the corner non-display area NAAJ to accommodate multiple fan-out traces. Some of these traces can first enter the display area AA through the middle area of ​​the lower side non-display area NAAC, and then transmit the data signals to the data lines of the side display areas AAZC located on the left and right sides via horizontal or diagonal connecting lines. With this design, the corner display areas AAZJ and corner non-display areas NAAJ are no longer affected by the fan-out traces, and the size design of the corner display areas AAZJ and corner non-display areas NAAJ is also more flexible.

[0083] Of course, in some other example embodiments of this disclosure, when there are two or three corner display areas AAZJ and two or three corner non-display areas NAAJ, this is also the case, so that wrinkles are not likely to appear at the two or three corners of the display panel.

[0084] The first arc AAZJ1 and / or the second arc NAAJ1 conform to a hyperelliptical arc (Lame curve). The curve formula for a hyperelliptical arc is X. n / a n +Y n / b n =1, since the length a of the first straight edge AAZJ2 of the non-display area NAAJ is equal to the length b of the second straight edge AAZJ3, the first arc AAZJ1 satisfies the following equation: X n +Y n =a n ; Where X is the x-coordinate of each point on the first arc AAZJ1 in the Cartesian coordinate system, Y is the y-coordinate of each point on the first arc AAZJ1 in the Cartesian coordinate system, a is the length of the first straight side AAZJ2, and n = 1 to infinity.

[0085] Similarly, the length a1 of the third straight edge NAAJ2 is equal to the length b1 of the fourth straight edge NAAJ3. Therefore, the second arc NAAJ1 satisfies the following equation: X1 n +Y1 n =(a+a1) n ; Where X1 is the x-coordinate of each point on the second arc NAAJ1 in the Cartesian coordinate system, Y1 is the y-coordinate of each point on the second arc NAAJ1 in the Cartesian coordinate system, a is the length of the first straight edge AAZJ2, and a1 is the length of the third straight edge NAAJ2.

[0086] The hyperelliptical arc is a smooth curve that avoids stress concentration caused by bending in the corner display area AAZJ and the corner non-display area NAAJ, significantly reducing the risk of cracking, deformation, and wrinkling. By adjusting the parameters in the hyperelliptical arc equation (such as the power exponent n), the curvature of the arc can be optimized to balance visual effects and structural strength. The symmetry of the hyperelliptical arc ensures that the continuity of the image is better than that of ordinary curved designs when viewed from different angles, reducing edge deformation and color deviation.

[0087] The first arc AAZJ1 is formed by connecting the outermost sub-pixels 35 of the corner display area AAZJ. Therefore, the outermost sub-pixels 35 of the corner display area AAZJ meet the above conditions.

[0088] Specifically, refer to Figure 14 As shown, the sub-pixels 35 in the corner display area AAZJ near the edge of the corner non-display area NAAJ are arranged in a stepped pattern; that is, the outermost sub-pixels 35 of the corner display area AAZJ near the corner non-display area NAAJ are arranged in a stepped pattern. The first arc AAZJ1 and the second arc NAAJ1 can be set as circular arcs. Of course, the first arc AAZJ1 and the second arc NAAJ1 can also be set as elliptical arcs, etc.

[0089] Reference Figure 5 As shown, the opening KK can be set as a long strip, for example, the opening KK can be set as a rectangle, a wave shape or a serrated shape, etc., and the opening KK can also be set as a structure combining a wave shape and a serrated shape.

[0090] In some exemplary embodiments of this disclosure, the extension direction of the opening KK can be perpendicular to the second arc NAAJ1. When the first arc AAZJ1 and the second arc NAAJ1 are set parallel to each other, the extension direction of the opening KK is also perpendicular to the first arc AAZJ1; that is, the opening KK extends radially along the corner non-display area NAAJ.

[0091] Of course, in some other exemplary embodiments of this disclosure, the extension direction of the opening KK is not limited to the above description. For example, the extension direction of the opening KK can be from the side near the second arc NAAJ1 to the side near the first arc AAZJ1.

[0092] Alternatively, the opening KK can extend from the second arc NAAJ1 of the corner non-display area NAAJ to the first arc AAZJ1 of the corner display area AAZJ, meaning the opening KK traverses the entire corner non-display area NAAJ radially. By setting a relatively long opening KK in the corner non-display area NAAJ, the circumferential compression rate of the corner non-display area NAAJ is essentially eliminated, further reducing the circumferential compression rate of the corner display area AAZJ. This further reduces or even eliminates wrinkles in the corner display area AAZJ, improving product yield; it also further reduces bonding difficulty and increases production efficiency.

[0093] In some exemplary embodiments of this disclosure, the display panel may further include a shift register 5 located in the corner non-display area NAAJ. The shift register 5 may be a first-stage shift register in a gate driver on array (GOA) circuit, which includes multiple stages of shift registers connected in series. For example, for a display panel including low-temperature polycrystalline + oxide (LTPO) thin-film transistors, the gate driver on array (GOA) circuit may be GOA-N (oxide gate driver circuit), EM-GOA (emission-gate driver on array), or GOA-P (LTPS gate driver circuit); for a display panel including low-temperature polysilicon (LTPS) thin-film transistors, the gate driver on array (GOA) circuit may be GOA or EM-GOA.

[0094] Shift register 5 can be configured as a long strip, meaning the outer contour of the first-level shift register 5 is approximately long. For example, shift register 5 can be configured as a rectangle, meaning the outer contour of the first-level shift register 5 is approximately rectangular.

[0095] The shift register 5 extends perpendicularly to the second arc NAAJ1. When the first arc AAZJ1 and the second arc NAAJ1 are parallel, the extension direction of the shift register 5 is also perpendicular to the first arc AAZJ1; thus, the shift register 5 extends radially along the corner non-display area NAAJ. This arrangement allows the shift register 5 to be arranged side-by-side with the opening KK in the corner non-display area NAAJ. This avoids the opening KK affecting the setting of the shift register 5, avoids the opening KK causing an open circuit in the shift register 5, and avoids an open circuit in the electrical connection between the shift register 5 and the display area AA. The connecting wire between the shift register 5 and the display area AA is located between the shift register 5 and the display area AA.

[0096] The VSS (low voltage side) can be set on the side of the shift register 5 away from the substrate 1 to ensure the connection of the VSS (low voltage side) signal.

[0097] In addition, in some other example embodiments of this disclosure, a portion of the shift register 5 may be set in the display area AA, and the empty space of this portion of the shift register 5 may be used to set the opening KK.

[0098] Alternatively, the opening KK is located between two adjacent shift registers 5, such that the opening KK is arranged side by side with the shift registers 5.

[0099] Optionally, refer to Figure 3 and Figure 6 As shown, the length b of the second straight edge line AAZJ3 in the corner display area AAZJ is π / 2×b when the first arc AAZJ1 is an arc. The shift register 5 is arranged side by side along the first arc AAZJ1. The lengths of other arcs in the corner non-display area NAAJ are also greater than b. Therefore, the display panel can also include a virtual shift register 5a. The virtual shift register 5a is located in the corner non-display area NAAJ. The virtual shift register 5a can be a first-level shift register in the gate driver on array (GOA). That is, the specific structure of the virtual shift register 5a is the same as the specific structure of the shift register 5. The difference is that the shift register 5 is electrically connected to the display area AA, while the virtual shift register 5a is not electrically connected to the display area AA. Figure 6 The thick, short black line indicates an electrical connection.

[0100] The dummy shift register 5a can also be configured as a long strip, that is, the outer contour of the first-level shift register of the dummy shift register 5a is approximately long strip. For example, the dummy shift register 5a can be configured as a rectangle, that is, the outer contour of the first-level shift register of the dummy shift register 5a is approximately rectangular.

[0101] The virtual shift register 5a extends perpendicularly to the second arc NAAJ1. Since the first arc AAZJ1 and the second arc NAAJ1 are parallel, the virtual shift register 5a also extends perpendicularly to the first arc AAZJ1; thus, the virtual shift register 5a extends radially along the corner non-display area NAAJ. This arrangement allows the virtual shift register 5a to be arranged side-by-side with shift register 5 in the corner non-display area NAAJ.

[0102] To make the shift register 5 as close as possible to the display area AA and reduce the wiring resistance, shift register 5 with excessively long wiring can be excluded from the wiring. That is, shift register 5 with excessively long wiring is a dummy shift register 5a, which reduces the wiring resistance. Moreover, setting a dummy shift register 5a can maintain the etching uniformity of the entire shift register 5 and improve the process yield.

[0103] Alternatively, a dummy shift register 5a can be configured. Figure 6An opening KK is set at the position indicated by the dashed line (in the middle), that is, the opening KK replaces the dummy shift register 5a. Therefore, the number of openings KK can be set according to the number of dummy shift registers 5a. For example, when there are multiple dummy shift registers 5a, one opening KK can be set at the position of one dummy shift register 5a, that is, one opening KK replaces one dummy shift register 5a, and multiple openings KK can be set to replace multiple dummy shift registers 5a. Specifically, after the dummy shift registers 5a are formed, the dummy shift registers 5a can be removed by laser cutting to form the openings KK; or, only some of the positions of the dummy shift registers 5a can be set with openings KK, while the other part of the dummy shift registers 5a is reserved without openings KK in these positions.

[0104] In some exemplary embodiments of this disclosure, in the first direction X, the width of the opening KK is greater than or equal to 30 micrometers and less than or equal to 300 micrometers. For example, the width of the opening KK can be 50 micrometers, 70 micrometers, 90 micrometers, 110 micrometers, 120 micrometers, 140 micrometers, 160 micrometers, 180 micrometers, 200 micrometers, 230 micrometers, 240 micrometers, 250 micrometers, 280 micrometers, etc.

[0105] Alternatively, the width of the opening KK is greater than or equal to 100 micrometers and less than or equal to 150 micrometers.

[0106] If the width of the opening KK is too large, it will occupy too much of the corner non-display area NAAJ, resulting in insufficient shift registers 5.

[0107] If the width of the opening KK is too small, it is difficult to form in the process, and it does not have much effect on reducing the circumferential compression rate, and cannot prevent wrinkles from forming in the corner display area AAZJ.

[0108] The above numerical range not only ensures that a sufficient number of shift registers 5 can be set, but also ensures that the circumferential compression ratio can be reduced, avoiding wrinkles in the corner display area AAZJ.

[0109] When there are two or more openings KK, the widths of the two or more openings KK can be the same, see reference. Figure 14 As shown, the widths of two or more openings KK can also be different.

[0110] It should be noted that the first direction X is parallel to the display panel, specifically, the first direction X is parallel to the display surface of the display panel; and the first direction X is perpendicular to the extension direction of the opening KK. Therefore, the first direction X changes with the extension direction of the opening KK.

[0111] In some exemplary embodiments of this disclosure, reference is made to Figure 7As shown, the display panel may include a substrate 1, which is a flexible substrate 1 and can be bent. The material of the substrate 1 may include organic materials, such as resins like polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate. The substrate 1 may be formed from multiple material layers; for example, the substrate 1 may include multiple substrate layers, and the substrate layers may be made of any of the aforementioned materials. Of course, the substrate 1 may also be a single layer, and may be any of the aforementioned materials.

[0112] The display panel may further include a driving layer group 2 and a light-emitting layer group 3. The driving layer group 2 is disposed on one side of the substrate 1, and the light-emitting layer group 3 is disposed on the side of the driving layer group 2 opposite to the substrate 1. The driving layer group 2 may include multiple driving circuits arranged in an array, and the light-emitting layer group 3 may include multiple light-emitting devices arranged in an array. The driving circuits can drive the light-emitting devices to emit light.

[0113] Specifically, refer to Figure 7 As shown, an active layer 21 may be disposed on one side of the substrate 1. The active layer 21 may include a channel portion 212 and conductor portions disposed at both ends of the channel portion 212. One of the two conductor portions is a source connection portion 211, and the other is a drain connection portion 213. A first gate insulating layer 22 is disposed on the side of the active layer 21 facing away from the substrate 1. A gate layer is disposed on the side of the first gate insulating layer 22 facing away from the substrate 1. The gate layer may include a gate 23 and a gate line (not shown in the figure).

[0114] A second gate insulating layer 24 is provided on the side of the gate layer away from the substrate 1, and an interlayer dielectric layer 25 is provided on the side of the second gate insulating layer 24 away from the substrate 1. A connection via is provided on the first gate insulating layer 22, the second gate insulating layer 24 and the interlayer dielectric layer 25, and the connection via connects to the source connection portion 211 and the drain connection portion 213.

[0115] A first connection conductor layer 26 is provided on the side of the interlayer dielectric layer 25 facing away from the substrate 1. The first connection conductor layer 26 may include a source 261, a drain 262 and a data line (not shown in the figure). The data line may be connected to the source 261, or a part of the data line may be used as the source 261. The source 261 is connected to the source connection portion 211 through a connection via, and the drain 262 is connected to the drain connection portion 213 through a connection via.

[0116] A protective layer 27 and a first planarization layer 281 are sequentially stacked on the side of the first connecting conductor layer 26 facing away from the substrate 1. Connecting vias are also provided on the protective layer 27 and the first planarization layer 281. A second connecting conductor layer 29 is provided on the side of the first planarization layer 281 facing away from the substrate 1. The second connecting conductor layer 29 may include a second source and / or a second drain 292, which are connected to the source 261 and / or the drain 262 respectively through the connecting vias on the protective layer 27 and the first planarization layer 281. Alternatively, the second connecting conductor layer 29 and the second planarization layer 282 may not be provided, and a third connecting conductor layer, a fourth connecting conductor layer, etc., may be provided as needed.

[0117] Please continue to refer to Figure 7 As shown, a second planarization layer 282 is provided on the side of the second connection conductor layer 29 facing away from the substrate 1. A connection via is also provided on the second planarization layer 282, and the connection via is connected to the second drain 292. The active layer 21, gate 23, source 261 and drain 262 form a thin film transistor.

[0118] It should be noted that the thin-film transistor described in this specification is a top-gate thin-film transistor. In other exemplary embodiments of this disclosure, the thin-film transistor may also be a bottom-gate or dual-gate type, and its specific structure will not be described in detail here. Moreover, in cases where thin-film transistors with opposite polarities are used or where the current direction changes during circuit operation, the functions of the "source 261" and "drain 262" are sometimes interchanged. Therefore, in this specification, the "source 261" and "drain 262" can be interchanged.

[0119] Please continue to refer to Figure 7 As shown, a light-emitting layer group 3 is provided on the side of the second planarization layer 282 away from the substrate 1. The light-emitting layer group 3 may include a first electrode 31, a pixel definition layer 32, a light-emitting layer 33, and a second electrode 34.

[0120] The first electrode 31 is disposed on the side of the driving layer group 2 away from the substrate 1. Specifically, the first electrode 31 is disposed on the side of the second planarization layer 282 away from the substrate 1. The electrode portion 311 of the first electrode 31 is connected to the second drain 292 of the driving layer group 2 through a connecting via. The second drain 292 provides a driving signal to the electrode portion 311 of the first electrode 31. The electrode portion 311 of the first electrode 31 can be an anode (pixel electrode).

[0121] A pixel definition layer 32 is provided on the side of the first electrode 31 facing away from the substrate 1, as shown in the figure. Figure 7As shown, the pixel definition layer 32 has pixel openings that connect to the first electrode 31, ensuring that at least a portion of the first electrode 31 is not covered by the pixel definition layer 32. The pixel definition layer 32 can be made of a black material capable of absorbing photons; for example, the material of the pixel definition layer 32 can be black ink. The pixel definition layer 32 can absorb stray light, improving the display effect.

[0122] A light-emitting layer 33 is disposed at least on the side of the first electrode 31 facing away from the substrate 1. That is, at least a portion of the light-emitting layer 33 is located within the pixel opening and connected to the first electrode 31. For example, the light-emitting layer 33 may include a common film layer 33a, which is a single, continuous layer covering both the pixel opening and the pixel definition layer 32. Other layers of the light-emitting layer 33 may be disposed only within the pixel opening. A second electrode 34 is disposed on the side of the light-emitting layer 33 facing away from the substrate 1. The second electrode 34 may be a cathode (common electrode). The light emitted by the light-emitting layer 33 within a pixel opening forms a sub-pixel 35.

[0123] Reference Figure 7 As shown, the display backplane may further include an encapsulation layer group 4, which is disposed on the side of the light-emitting layer group 3 facing away from the substrate 1. For example, the encapsulation layer group 4 may include a first inorganic layer 41, an organic layer 42, and a second inorganic layer 43; the first inorganic layer 41 is disposed on the side of the second electrode 34 facing away from the substrate 1; the material of the first inorganic layer 41 may be silicon nitride (SiNx) or silicon oxynitride (SiNO), etc., and the first inorganic layer 41 can be formed on the side of the second electrode 34 facing away from the substrate 1 by chemical vapor deposition (CVD). The organic layer 42 is disposed on the side of the first inorganic layer 41 facing away from the substrate 1, and the material of the organic layer 42 may be acrylic, epoxide, or other organic materials. The second inorganic layer 43 is disposed on the side of the organic layer 42 facing away from the substrate 1. The material of the second inorganic layer 43 can be silicon nitride (SiNx) or silicon oxynitride (SiNO), etc. The second inorganic layer 43 can be formed on the side of the organic layer 42 facing away from the substrate 1 by chemical vapor deposition (CVD). The light-emitting layer 33 can be encapsulated by the encapsulation layer group 4 to isolate it from corrosion by water / oxygen in the air.

[0124] In some exemplary embodiments of this disclosure, reference is made to Figure 8 and Figure 9 , Figure 12 and Figure 13As shown, in the corner display area AAZJ, the organic layer 42 is located within the display area AA, meaning the organic layer 42 is not located in the non-display area NAA. Since the corner non-display area NAAJ has an opening KK, if the organic layer 42 extends into the non-display area NAA, organic layer 42 residue will remain at the opening KK. Moisture will then penetrate into the organic layer 42 and along it to the light-emitting layer 33 in the display area AA, affecting the encapsulation effect and the light-emitting performance of the light-emitting layer 33. By not placing the organic layer 42 in the non-display area NAA, residue of organic layer 42 at the opening KK is avoided, thus ensuring the encapsulation effect and the light-emitting performance of the light-emitting layer 33.

[0125] In some exemplary embodiments of this disclosure, reference is made to Figure 8 and Figure 9 As shown, a first recessed structure 6 is provided on the display panel. The first recessed structure 6 is provided along the edge of the display area AA, so that the first recessed structure 6 is basically ring-shaped. The first recessed structure 6 can be a structure with two oppositely arranged sidewalls, or it can be a structure with one sidewall, which is located close to the display area AA.

[0126] Specifically, the first gate insulating layer 22, the second gate insulating layer 24, and the interlayer dielectric layer 25 extend to the non-display area NAA, that is, the first gate insulating layer 22, the second gate insulating layer 24, and the interlayer dielectric layer 25 basically cover the entire substrate 1.

[0127] The first connecting conductor layer 26 and the gate layer can extend to the non-display area NAA, and the portion of the first connecting conductor layer 26 and the gate layer extending to the non-display area NAA is used as a connecting wire.

[0128] The first planarization layer 281 and the second planarization layer 282 also extend to the non-display area NAA. A first sub-recessed structure 2811 is provided on the first planarization layer 281, and a second sub-recessed structure 2821 is provided on the second planarization layer 282. The second sub-recessed structure 2821 is connected to the first sub-recessed structure 2811. The orthographic projection of the second sub-recessed structure 2821 on the substrate 1 covers and is larger than the orthographic projection of the first sub-recessed structure 2811 on the substrate 1. The first sub-recessed structure 2811 and the second sub-recessed structure 2821 combine to form the first recessed structure 6.

[0129] Reference Figure 9 As shown, the driving layer group 2 may further include a first protrusion 201 located in the display area AA. At the opening KK, the first protrusion 201 protrudes from the sidewall of the first recessed structure 6. Specifically, at the opening KK, the first protrusion 201 protrudes from the sidewall of the first recessed structure 6 located at or near the display area AA. (Refer to...) Figure 8As shown, at the non-opening location, there is no first protrusion 201 protruding from the sidewall of the first recessed structure 6 located or near the display area AA.

[0130] The first protrusion 201 can be disposed in the same layer and with the same material as the second connecting conductor layer 29, that is, the first protrusion 201 and the second connecting conductor layer 29 can be formed in the same patterning process. Alternatively, the first protrusion 201 can be disposed in the same layer and with the same material as an inorganic material layer of the display area AA, that is, the first protrusion 201 and the inorganic material layer of the display area AA can be formed in the same patterning process. Of course, the first protrusion 201 can also be disposed in the same layer and with the same material as the first electrode 31, that is, the first protrusion 201 and the first electrode 31 can be formed in the same patterning process.

[0131] Alternatively, the first protrusion 201 may be disposed between the first planarization layer 281 and the second planarization layer 282. At the opening KK, the first protrusion 201 may protrude beyond the first planarization layer 281 and the second planarization layer 282; at the non-opening location, the first protrusion 201 may protrude beyond the second planarization layer 282, but not beyond the first planarization layer 281. Of course, at the non-opening location, the first protrusion 201 may not protrude beyond either the second planarization layer 282 or the first planarization layer 281.

[0132] The first protrusion 201 creates an uneven sidewall structure on the first recessed structure 6, which facilitates the adhesion of the first inorganic layer 41 and the second inorganic layer 43. In other words, the first protrusion 201 enhances the adhesion of the first inorganic layer 41 and the second inorganic layer 43, improving the encapsulation effect. Furthermore, at the opening KK, the common film layer 33a is separated by the first protrusion 201, meaning the common film layer 33a can be disconnected. Since the common film layer 33a is formed by a vapor deposition process, it is difficult to vapor deposit at the corner of the first protrusion 201 near the substrate 1. Therefore, the common film layer 33a is disconnected at the first protrusion 201, preventing it from extending to the opening KK and preventing moisture from penetrating into the common film layer 33a and along it to the light-emitting layer 33 of the display area AA, thus affecting the encapsulation effect and the light-emitting performance of the light-emitting layer 33.

[0133] At the opening KK, the second electrode 34 is separated by the first protrusion 201, meaning that the second electrode 34 can be disconnected through the first protrusion 201. Since the second electrode 34 is formed by vapor deposition, it is difficult to vapor deposit at the corner of the first protrusion 201 near the substrate 1. Therefore, the second electrode 34 is disconnected and not connected at the first protrusion 201 to improve the packaging effect.

[0134] However, no first protrusion 201 is provided at the non-opening location, so the common membrane layer 33a is not blocked by the first protrusion 201 at the non-opening location.

[0135] The opening KK reduces the width of the connection portion of the second electrode 34, thereby increasing the resistance of the connection portion of the second electrode 34.

[0136] Alternatively, the driving layer group 2 may include an auxiliary part 29a1, with a through hole provided on the common film layer 33a, and the second electrode 34 electrically connected to the auxiliary part 29a1 through the through hole.

[0137] Specifically, refer to Figure 7 As shown, the driving layer group 2 may include a connecting conductor layer 29a, which may include a connecting electrode and an auxiliary part 29a1 arranged at intervals. There is a gap between the connecting electrode and the auxiliary part 29a1, and they are not connected. For example, the second connecting conductor layer 29 may include the connecting conductor layer 29a, and the connecting electrode is the second drain electrode 292.

[0138] Of course, in some other exemplary embodiments of this disclosure, the first connecting conductor layer 26 may be a connecting conductor layer 29a, and the connecting electrodes may be a first source 261 and a first drain 262; if a third connecting conductor layer is provided, the third connecting conductor layer may be a connecting conductor layer 29a, and the connecting electrode may be a third drain.

[0139] The first electrode 31 may include an electrode portion 311 and a first transition portion 312 spaced apart, meaning there is no connection between the electrode portion 311 and the first transition portion 312, and no current is conducted between them. The electrode portion 311 serves as the anode and is connected to the second drain 292 of the drive layer group 2 through a connection via on the second planarization layer 282, providing a drive signal to the electrode portion 311 of the first electrode 31 through the second drain 292. The first transition portion 312 is also connected to the auxiliary portion 29a1 through a connection via on the second planarization layer 282.

[0140] A second via is provided on the pixel definition layer 32, and a first via 33a1 is provided on the common film layer 33a. The first via 33a1 is connected to the second via 33a1. The second electrode 34 is electrically connected to the first adapter 312 through the first via 33a1 and the second via, thereby making the second electrode 34, the first adapter 312, and the auxiliary part 29a1 electrically connected in sequence. The auxiliary part 29a1 can increase the conductive cross-sectional area of ​​the second electrode 34, thereby reducing the resistance of the second electrode and ensuring the uniformity and stability of the VSS (low voltage side) signal. The orthographic projection of the auxiliary part 29a1 on the substrate 1 is located between two adjacent sub-pixels 35, and the orthographic projection of the first adapter 312 on the substrate 1 is also located between two adjacent sub-pixels 35.

[0141] In some exemplary embodiments of this disclosure, reference is made to Figure 5 and Figure 6 As shown, the display panel may further include a first isolation dam DAM1, which is located in the non-display area NAA. The first isolation dam DAM1 is located on the side of the shift register 5 away from the display area AA, meaning the shift register 5 is located between the first isolation dam DAM1 and the display area AA. Without the first recess DAM12, the first isolation dam DAM1 is configured to surround the display area AA. The first isolation dam DAM1 may include multiple first sub-isolation dams DAM11 spaced apart, such that a first recess DAM12 is provided between two adjacent first sub-isolation dams DAM11. The first recess DAM12 is located in the corner non-display area NAAJ and connects to the opening KK; in other words, the opening KK penetrates the first isolation dam DAM1.

[0142] Specifically, refer to Figure 8 As shown, the second planarization layer 282 and the pixel definition layer 32 extend to the non-display area NAA to form the first isolation dam DAM1. That is, the first isolation dam DAM1 may include a part of the second planarization layer 282 and a part of the pixel definition layer 32, and the part of the second planarization layer 282 and the part of the pixel definition layer 32 are stacked sequentially to form the first isolation dam DAM1.

[0143] Part of the film layer of the encapsulation layer group 4 covers the first isolation dam DAM1. Specifically, a portion of the first inorganic layer 41, the second inorganic layer 43, and the first electrode 31, which is spaced apart from the electrode portion 311, extends to the non-display area NAA and covers the first isolation dam DAM1.

[0144] In some exemplary embodiments of this disclosure, reference is made to Figure 5 , Figure 6 and Figure 10As shown, the display panel may further include a second isolation dam DAM2, which is located in the non-display area NAA. Specifically, the second isolation dam DAM2 is located on the side of the first isolation dam DAM1 away from the display area AA, that is, the first isolation dam DAM1 is located between the second isolation dam DAM2 and the display area AA. The second isolation dam DAM2, without the second recess DAM22, is configured to surround the display area AA. The second isolation dam DAM2 may include multiple second sub-isolation dams DAM21 spaced apart, such that a second recess DAM22 is provided between two adjacent second sub-isolation dams DAM21. The second recess DAM22 is located in the corner non-display area NAAJ and connects to the opening KK, or in other words, the opening KK penetrates the second isolation dam DAM2. The second sub-isolation dam DAM21 may include a second protruding structure DAM23, which protrudes from the sidewall of the second recess DAM22.

[0145] Specifically, refer to Figure 8 As shown, the first planarization layer 281, the second planarization layer 282, and the pixel definition layer 32 extend to the non-display area NAA to form a second isolation dam DAM2. That is, the second isolation dam DAM2 includes a part of the first planarization layer 281, a part of the second planarization layer 282, and a part of the pixel definition layer 32, and the part of the first planarization layer 281, a part of the second planarization layer 282, and a part of the pixel definition layer 32 are stacked sequentially to form the second isolation dam DAM2.

[0146] Part of the film layer of the encapsulation layer group 4 covers the second isolation dam DAM2. Specifically, the first inorganic layer 41 and the second inorganic layer 43 extend to the non-display area NAA and cover the second isolation dam DAM2.

[0147] A portion of the first electrode 31, spaced apart from the electrode portion 311, extends between the second planarization layer 282 and the pixel definition layer 32 of the second isolation dam DAM2, and protrudes beyond the second planarization layer 282 and the pixel definition layer 32 to form a second protruding structure DAM23. That is, the second protruding structure DAM23 is located between the second planarization layer 282 and the pixel definition layer 32, and is formed by extending a portion of the first electrode 31, spaced apart from the electrode portion 311.

[0148] The second protruding structure DAM23 protrudes from the second planarization layer 282 and the pixel definition layer 32. The second protruding structure DAM23 makes the sidewall of the first groove DAM12 form an uneven structure, which is conducive to the adhesion of the first inorganic layer 41 and the second inorganic layer 43. That is, the second protruding structure DAM23 can enhance the adhesion of the first inorganic layer 41 and the second inorganic layer 43 and improve the encapsulation effect.

[0149] The height of the second isolation dam DAM2 in the third direction Z can be higher than the height of the first isolation dam DAM1 in the third direction Z.

[0150] Of course, in some other example embodiments of this disclosure, the structure of the first isolation dam DAM1 may also be the same as that of the second isolation dam DAM2.

[0151] In some exemplary embodiments of this disclosure, reference is made to Figures 11-13 As shown, the display panel may also include a first partition structure 71, which is arranged in a ring shape along the edge of the display panel; that is, the first partition structure 71 is arranged along the edge of the opening KK at the position where the opening KK is provided, so that the first partition structure 71 includes at least one "U" shaped structure.

[0152] The display panel may also include a second partition structure 72, which is located on the side of the first partition structure 71 near the display area AA.

[0153] It should be noted that the first partition structure 71 is located in the part of the shift register 5 that is far from the display area AA, which can be equivalent to Figure 6 The second isolation dam DAM2, and the second isolation structure 72, are located in the part of the shift register 5 that is far from the display area AA, which can be equivalent to Figure 6 The first isolation dam in the middle is DAM1.

[0154] Specifically, refer to Figure 11 As shown, the corner non-display area NAAJ is divided into at least two sub-corner non-display areas NAAJZ by the opening KK. For example, with one opening KK, the corner non-display area NAAJ is divided into two sub-corner non-display areas NAAJZ; with two openings KK, the corner non-display area NAAJ is divided into three sub-corner non-display areas NAAJZ. The second partition structure 72 is configured as a ring surrounding the sub-corner non-display areas NAAJZ, and the portion of the second partition structure 72 near the display area AA is connected to the portion of the first partition structure 71 near the display area AA. This closed isolation ring formed by the connection of the second partition structure 72 and the first partition structure 71 can limit the perimeter of the display panel. Moreover, after covering the isolation ring with an inorganic film layer, it can effectively prevent moisture from penetrating into the light-emitting layer 33 of the display area AA, ensuring the encapsulation effect and the light-emitting performance of the light-emitting layer 33.

[0155] The display panel may also include a third partition structure 73, which is arranged in a ring shape along the edge of the display area AA, so that the third partition structure 73 surrounds the entire display area AA. The third partition structure 73 is located on the side of the first partition structure 71 and the second partition structure 72 that is close to the display area AA. This arrangement forms a double-layer closed isolation ring around the display area AA, which further effectively prevents moisture from penetrating into the light-emitting layer 33 of the display area AA, ensuring the encapsulation effect and the light-emitting performance of the light-emitting layer 33.

[0156] Reference Figure 12 and Figure 13 As shown, specifically, the first partition structure 71 may include at least one first undercut structure 711. For example, the first partition structure 71 may include one first undercut structure 711, or the first partition structure 71 may include two, three or more first undercut structures 711.

[0157] The first undercut structure 711 may include a first film layer 7111 and a second film layer 7112; the second film layer 7112 is disposed on the side of the first film layer 7111 away from the substrate 1, the orthographic projection of the first film layer 7111 on the substrate 1 is located within the orthographic projection of the second film layer 7112 on the substrate 1, and there is a non-zero gap between the edge line of the orthographic projection of the first film layer 7111 on the substrate 1 and the edge line of the orthographic projection of the second film layer 7112 on the substrate 1, so that the first undercut structure 711 forms a structure with the top larger than the bottom.

[0158] For example, a portion of the first planarization layer 281 can form a first film layer 7111, and a portion of the first connecting conductor layer 26 can form a second film layer 7112. A portion of the first planarization layer 281 and a portion of the first connecting conductor layer 26 are stacked to form a first undercut structure 711 of the first partition structure 71. Similarly, a portion of the second planarization layer 282 can form the first film layer 7111, and a portion of the first electrode 31 can form the second film layer 7112. A portion of the second planarization layer 282 and a portion of the first electrode 31 are stacked to form another first undercut structure 711 of the first partition structure 71. A portion of a pixel definition layer 32 is also provided on the side of the first undercut structure 711 facing away from the substrate 1, so that the first partition structure 71 can include the aforementioned five film layers. Of course, the first partition structure 71 can also be formed by stacking other film layers, which will not be elaborated here.

[0159] The first inorganic layer 41 can cover the first partition structure 71. This arrangement creates an uneven structure on the sidewalls of the first partition structure 71, which facilitates the adhesion of the first inorganic layer 41 and improves the encapsulation effect. Of course, in some other exemplary embodiments of this disclosure, the first inorganic layer 41 and the second inorganic layer 43 can also cover the first partition structure 71.

[0160] Near the edge of the opening KK, the second partition structure 72 may include at least one second undercut structure 721. For example, the second partition structure 72 may include one second undercut structure 721, or the second partition structure 72 may include two, three or more second undercut structures 721.

[0161] The second undercut structure 721 may include a third film layer 7211 and a fourth film layer 7212; the fourth film layer 7212 is disposed on the side of the third film layer 7211 away from the substrate 1, the orthographic projection of the third film layer 7211 on the substrate 1 is located within the orthographic projection of the fourth film layer 7212 on the substrate 1, and there is a non-zero gap between the edge line of the orthographic projection of the third film layer 7211 on the substrate 1 and the edge line of the orthographic projection of the fourth film layer 7212 on the substrate 1, so that the second undercut structure 721 forms a structure with the top larger than the bottom.

[0162] For example, a portion of the second planarization layer 282 can form a third film layer 7211, and a portion of the first electrode 31 can form a fourth film layer 7212. A portion of the second planarization layer 282 and a portion of the first electrode 31 are stacked to form a first undercut structure 711 of the second partition structure 72. Of course, the second partition structure 72 can also be formed by stacking other film layers, which will not be elaborated here.

[0163] The first inorganic layer 41 can cover the second partition structure 72. This arrangement creates an uneven structure on the sidewalls of the second partition structure 72, which facilitates the adhesion of the first inorganic layer 41 and improves the encapsulation effect. Of course, in some other exemplary embodiments of this disclosure, the first inorganic layer 41 and / or the second inorganic layer 43 may cover the second partition structure 72.

[0164] In other locations, the second partition structure 72 can be configured such that the top is smaller than the bottom. For example, the portion of the second partition structure 72 closest to the display area AA can be configured such that the top is smaller than the bottom.

[0165] Near the edge of the opening KK, the third partition structure 73 includes at least one third undercut structure 731. For example, the third partition structure 73 may include one third undercut structure 731, or the third partition structure 73 may include two, three or more third undercut structures 731.

[0166] The third undercut structure 731 may include a fifth film layer 7311 and a sixth film layer 7312; the sixth film layer 7312 is disposed on the side of the fifth film layer 7311 away from the substrate 1, the orthographic projection of the fifth film layer 7311 on the substrate 1 is located within the orthographic projection of the sixth film layer 7312 on the substrate 1, and there is a non-zero gap between the edge line of the orthographic projection of the fifth film layer 7311 on the substrate 1 and the edge line of the orthographic projection of the sixth film layer 7312 on the substrate 1, so that the third undercut structure 731 forms a structure with the top larger than the bottom.

[0167] For example, a portion of the second planarization layer 282 can form a fifth film layer 7311, and a portion of the first electrode 31 can form a sixth film layer 7312. A portion of the second planarization layer 282 and a portion of the first electrode 31 are stacked to form a first undercut structure 711 of the third partition structure 73. Of course, the third partition structure 73 can also be formed by stacking other film layers, which will not be elaborated here. Near the edge of the opening KK, the third partition structure 73 can isolate the common film layer 33a, preventing moisture from entering the display area AA through the common film layer 33a and ensuring display quality.

[0168] The first inorganic layer 41 can cover the third partition structure 73. This arrangement creates an uneven structure on the sidewalls of the third partition structure 73, which facilitates the adhesion of the first inorganic layer 41 and improves the encapsulation effect. Of course, in some other exemplary embodiments of this disclosure, the first inorganic layer 41 and / or the second inorganic layer 43 may cover the third partition structure 73.

[0169] In other locations, the third partition structure 73 can be configured such that the top is smaller than the bottom. For example, the portion of the third partition structure 73 furthest from the edge of the opening KK can be configured such that the top is smaller than the bottom.

[0170] Reference Figure 10 As shown, the opening KK penetrates the display panel in the third direction Z, such that the corner non-display area NAAJ of the display panel is configured as a structure divided into at least two parts by the opening KK. Specifically, the opening KK penetrates the substrate 1, the driving layer group 2, the light-emitting layer group 3, and the encapsulation layer group 4 in the third direction Z; when a touch layer group is provided, the opening KK also penetrates the touch layer group in the third direction Z.

[0171] It should be noted that the third direction Z is perpendicular to the substrate 1.

[0172] In some other exemplary embodiments of this disclosure, the display panel may further include a touch layer group disposed on the side of the encapsulation layer group 4 away from the substrate 1, the touch layer group enabling the display panel to perform touch functions.

[0173] Based on the same inventive concept, this disclosure provides an example embodiment of a display device, which may include a cover plate CG and a display panel of any of the above-described embodiments. The specific structure of the display panel has been described in detail above, and therefore will not be repeated here.

[0174] Reference Figure 15 As shown, the cover plate CG is disposed on the display side of the display panel. The cover plate CG may include a flat area CGP and a peripheral curved area CGZ. The peripheral curved area CGZ may include a side curved area CGZC and a corner curved area CGZJ.

[0175] After the display panel and the cover plate CG are bonded together, the flat display area AAP is set opposite to the flat area CGP of the cover plate CG, so that the flat display area AAP is flat and does not need to be bent; while the peripheral display area AAZ is set opposite to the peripheral curved area CGZ of the cover plate CG, so that the peripheral display area AAZ is curved and needs to be bent.

[0176] The side display area AAZC is positioned opposite to the side curved area CGZC of the cover plate CG. Both the side display area AAZC and the side curved area CGZC are curved to form cylindrical surfaces, giving the side display area AAZC a bending radius. The corner display area AAZJ is positioned opposite to the corner curved area CGZJ of the cover plate CG. Both the corner display area AAZJ and the corner curved area CGZJ are curved to form spherical surfaces, giving the corner display area AAZJ two bending radii.

[0177] The specific type of display device is not particularly limited; any type of display device commonly used in the field is acceptable, such as mobile devices like mobile phones, wearable devices like watches, VR devices, etc. Those skilled in the art can make the appropriate selection based on the specific purpose of the display device, which will not be elaborated further here.

[0178] It should be noted that, in addition to the display panel, the display device also includes other necessary components and parts. Taking the monitor as an example, these include, for instance, the casing, circuit board, power cord, etc. Those skilled in the art can supplement these components according to the specific usage requirements of the display device, and will not be elaborated here.

[0179] Compared with the prior art, the beneficial effects of the display device provided by the example embodiment of this utility model are the same as the beneficial effects of the display panel provided by the example embodiment above, and will not be repeated here.

[0180] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A display panel, characterized in that, include: The display area includes a planar display area and a peripheral display area. The peripheral display area surrounds the outside of the planar display area and includes at least two side display areas and at least one corner display area. The corner display area is connected between two adjacent side display areas and at the corner of the planar display area. The pixel arrangement of the planar display area is the same as that of the peripheral display area. The non-display area includes a corner non-display area, which is connected to the side of the corner display area away from the planar display area. The corner non-display area is provided with an opening and a shift register, and the opening is located between two adjacent shift registers.

2. The display panel according to claim 1, characterized in that, The density of the openings increases as the distance from the first center line decreases, where the first center line is the extension of the angle bisector of the corner of the planar display area.

3. The display panel according to claim 1, characterized in that, The corner display area includes at least a first arc, a first straight edge, and a second straight edge connected end to end, with the length of the first straight edge equal to the length of the second straight edge; the corner non-display area includes at least a second arc, a third straight edge, the first arc, and a fourth straight edge connected end to end, with the length of the third straight edge equal to the length of the fourth straight edge.

4. The display panel according to claim 3, characterized in that, The first arc satisfies the following formula: X n +And n =a n ; Where X is the abscissa of each point on the first arc in the Cartesian coordinate system, Y is the ordinate of each point on the first arc in the Cartesian coordinate system, a is the length of the first straight edge, and n = 1 to infinity. And / or, the second arc satisfies the following equation: X1 n +Y1 n =(a+a1) n ; Where X1 is the x-coordinate of each point on the second arc in the Cartesian coordinate system, Y1 is the y-coordinate of each point on the second arc in the Cartesian coordinate system, a is the length of the first straight edge, and a1 is the length of the third straight edge.

5. The display panel according to claim 3, characterized in that, The opening extends in a direction perpendicular to the second arc.

6. The display panel according to claim 3, characterized in that, The opening extends from the second arc of the non-display area in the corner to the first arc of the display area in the corner.

7. The display panel according to claim 3, characterized in that, The shift register extends perpendicularly to the second arc.

8. The display panel according to claim 3, characterized in that, The display panel also includes: A dummy shift register is provided in the corner non-display area, the extension direction of the dummy shift register is perpendicular to the second arc, and the dummy shift register is located between two adjacent shift registers.

9. The display panel according to any one of claims 1 to 8, characterized in that, In a first direction, the width of the opening is greater than or equal to 30 micrometers and less than or equal to 300 micrometers, or the width of the opening is greater than or equal to 100 micrometers and less than or equal to 150 micrometers, the first direction being parallel to the display panel and perpendicular to the extension direction of the opening.

10. The display panel according to any one of claims 1 to 8, characterized in that, The display panel includes: Substrate; A driving layer group is disposed on one side of the substrate, and the driving layer group includes multiple driving circuits arranged in an array. A light-emitting layer group is disposed on the side of the driving layer group away from the substrate. The light-emitting layer group includes a plurality of light-emitting devices arranged in an array. The driving circuit is electrically connected to the light-emitting devices to drive the light-emitting devices to emit light. An encapsulation layer group is disposed on the side of the light-emitting layer group opposite to the substrate. The encapsulation layer group includes an organic layer in the corner display area, and the organic layer is located within the display area.

11. The display panel according to claim 10, characterized in that, The display panel has a first recessed structure, which is disposed along the edge of the display area. The driving layer group includes: A first protrusion is located in the display area, and at the opening, the first protrusion protrudes from the sidewall of the first recessed structure.

12. The display panel according to claim 11, characterized in that, The light-emitting layer group includes: The first electrode is disposed on the side of the driving layer group away from the substrate. A pixel definition layer is disposed on the side of the first electrode away from the substrate, and a pixel opening is provided on the pixel definition layer, the pixel opening being connected to the first electrode; A light-emitting layer, a portion of which is located within the pixel opening, the light-emitting layer including a common film layer covering the pixel opening and the pixel definition layer, wherein the common film layer is interrupted by the first protrusion at the opening; The second electrode is disposed on the side of the light-emitting layer away from the substrate, and at the opening, the second electrode is separated by the first protrusion.

13. The display panel according to claim 12, characterized in that, The driving layer group includes a connecting conductor layer, the connecting conductor layer includes connecting electrodes and auxiliary parts arranged at intervals; the first electrode includes an electrode part and a first transition part arranged at intervals, the first transition part is electrically connected to the auxiliary part, a first via is provided on the common film layer, and the second electrode is electrically connected to the first transition part through the first via.

14. The display panel according to claim 10, characterized in that, The shift register is provided in the non-display area, and the display panel further includes: A first isolation dam is located on the side of the shift register away from the display area. The first isolation dam includes a plurality of first sub-isolation dams spaced apart, such that a first groove is provided between two adjacent first sub-isolation dams. The first groove is located in the corner non-display area and is connected to the opening. The second isolation dam is located on the side of the first isolation dam away from the display area. The second isolation dam includes a plurality of second sub-isolation dams spaced apart, such that a second groove is provided between two adjacent second sub-isolation dams. The second groove is located in the corner non-display area and communicates with the opening. The second sub-isolation dam includes a second protruding structure that protrudes from the groove sidewall of the second groove. A portion of the film layer of the encapsulation layer group covers the first isolation dam and the second isolation dam.

15. The display panel according to claim 10, characterized in that, The display panel also includes: The first partition structure is arranged in a ring shape along the edge of the display panel.

16. The display panel according to claim 15, characterized in that, The display panel also includes: The second partition structure is located on the side of the first partition structure closest to the display area.

17. The display panel according to claim 16, characterized in that, The corner non-display area is divided into at least two sub-corner non-display areas by the opening, the second partition structure is configured to be ring-shaped around the sub-corner non-display areas, and the portion of the second partition structure near the display area is connected to the first partition structure.

18. The display panel according to claim 17, characterized in that, The display panel also includes: The third partition structure is arranged in a ring shape along the edge of the display area, and the third partition structure is located on the side of the first partition structure and the second partition structure that is close to the display area.

19. The display panel according to claim 18, characterized in that, The first partition structure includes at least one first undercut structure, the first undercut structure comprising: First membrane layer; The second film layer is disposed on the side of the first film layer away from the substrate. The orthographic projection of the first film layer on the substrate is located within the orthographic projection of the second film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the first film layer on the substrate and the edge line of the orthographic projection of the second film layer on the substrate. Near the edge of the opening, the second partition structure includes at least one second undercut structure, the second undercut structure comprising: Third membrane layer; The fourth film layer is disposed on the side of the third film layer away from the substrate. The orthographic projection of the third film layer on the substrate is located within the orthographic projection of the fourth film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the third film layer on the substrate and the edge line of the orthographic projection of the fourth film layer on the substrate. Near the edge of the opening, the third partition structure includes at least one third undercut structure, the third undercut structure comprising: Fifth film layer; A sixth film layer is disposed on the side of the fifth film layer away from the substrate. The orthographic projection of the fifth film layer on the substrate is located within the orthographic projection of the sixth film layer on the substrate, and there is a non-zero gap between the edge line of the orthographic projection of the fifth film layer on the substrate and the edge line of the orthographic projection of the sixth film layer on the substrate.

20. The display panel according to claim 10, characterized in that, The opening extends through the display panel in a third direction, and this third direction is perpendicular to the substrate.

21. The display panel according to claim 1, characterized in that, The pixel density of the planar display area is the same as the pixel density of the surrounding display area.

22. The display panel according to claim 1, characterized in that, The sub-pixels in the edge area of ​​the corner display area near the corner non-display area are arranged in a stepped shape.

23. A display device, characterized in that, include: The display panel is the display panel according to any one of claims 1 to 22; A cover plate is disposed on the display side of the display panel. The cover plate includes a planar area and a peripheral curved area. The peripheral curved area includes a side curved area and a corner curved area. The planar area is disposed opposite to the planar display area, the side curved area is disposed opposite to the side display area, and the corner curved area is disposed opposite to the corner display area.

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