Display panel and display device

Abstract

The invention provides a display panel and a display device. The display panel comprises a substrate, a pixel defining layer, an isolation structure and a plurality of light emitting devices. The pixel limiting layer is arranged on one side of the substrate, the pixel limiting layer comprises a plurality of pixel openings, the edge of each pixel opening comprises at least one first edge part and a plurality of second edge parts, the at least one first edge part extends in the first direction, and the second edge parts intersect with the first edge parts. The isolation structure is arranged on one side of the substrate, and a plurality of isolation openings are defined by the isolation structure. The light emitting device includes a first electrode, at least a portion of which is located in the isolation opening. Wherein the first electrode which is located above at least one first edge part and is in lap joint with the isolation structure has a first thickness, the first electrode which is located above the plurality of second edge parts has a second thickness, and the second thickness is not greater than the first thickness. According to the invention, the lap joint yield of the first electrode is improved by changing the structure of the first electrode.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] Organic Light-Emitting Diode (OLED) is an organic thin film electroluminescent device. It has attracted great attention and is widely used in electronic display products due to its advantages such as low power consumption, high brightness, wide viewing angle, high contrast and flexible display.

[0003] However, the performance of current display panels needs to be improved. Summary of the invention

[0004] An object of the present invention is to provide a display panel and a display device to improve the performance of the existing display panel.

[0005] To achieve the above-mentioned object, the present invention provides a display panel, which includes a substrate, a pixel defining layer, an isolation structure and a plurality of light-emitting devices. The pixel defining layer is arranged on one side of the substrate, the pixel defining layer includes a plurality of pixel openings, the edge of the pixel opening includes at least one first edge portion and a plurality of second edge portions, the at least one first edge portion extends along a first direction, and the second edge portion intersects with the first edge portion. The isolation structure is arranged on one side of the substrate, the isolation structure encloses a plurality of isolation openings, and the isolation structure is connected to the corresponding pixel openings. The light-emitting device includes a light-emitting functional layer and a first electrode stacked in sequence in a direction away from the substrate, and at least part of the first electrode is located in the corresponding isolation opening. Among them, the first electrode located above the at least one first edge portion and overlapping the isolation structure has a first thickness, and the first electrode located above the plurality of second edge portions has a second thickness, and the second thickness is not greater than the first thickness.

[0006] Further, the first electrode located above the plurality of second edge portions and overlapping the isolation structure has the second thickness. Preferably, the first electrode includes a main body portion and an overlapping portion. The orthographic projection of the main body portion on the substrate is outside the orthographic projection range of the isolation structure on the substrate. The overlapping portion is connected to the main body portion and overlaps the isolation structure, and the orthographic projection of the overlapping portion on the substrate is within the orthographic projection range of the isolation structure on the substrate. Wherein, the overlapping portion located above the at least one first edge portion has the first thickness, and the overlapping portion located above the plurality of second edge portions has the second thickness. Preferably, the isolation structure includes a supporting portion and an isolating portion. The supporting portion is provided on one side of the substrate. The isolating portion is provided on the side of the supporting portion away from the substrate, and the isolating portion is provided protruding from the supporting portion toward the isolation opening. Wherein, the orthographic projection of the main body portion on the substrate is outside the orthographic projection range of the isolation portion on the substrate, and the orthographic projection of the overlapping portion on the substrate is within the orthographic projection range of the isolation portion on the substrate.

[0007] Further, the at least one first edge portion includes a first straight portion and a second straight portion, and the plurality of second edge portions include a first folded line portion and a second folded line portion, wherein: the first straight portion and the second straight portion extend along the first direction; the first folded line portion connects the first end of the first straight portion and the first end of the second straight portion, and the second folded line portion connects the second end of the first straight portion and the second end of the second straight portion; and wherein the first electrode located above the first straight portion overlaps the isolation structure, and the first electrode located above the second straight portion has a gap with the isolation structure. Preferably, the first electrode located above the first straight portion has the first thickness. Preferably, the first folded line portion includes a first folded line segment and a second folded line segment, wherein: the first folded line segment is connected between the second folded line segment and the first straight portion, and the second folded line segment is connected between the first folded line segment and the second straight portion, and the angle between the first folded line segment and the first straight portion is greater than 90 degrees, and the angle between the second folded line segment and the second straight portion is greater than 90 degrees; and wherein the first electrode located above the first folded line segment overlaps the isolation structure, and the first electrode located above the second folded line segment has a gap with the isolation structure. Preferably, the first electrode located above the first fold line segment has the second thickness. Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: the third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the second straight line portion, the angle between the third fold line segment and the first straight line portion is greater than 90 degrees, and the angle between the fourth fold line segment and the second straight line portion is greater than 90 degrees; and wherein the first electrode located above the third fold line segment overlaps the isolation structure, and the first electrode located above the fourth fold line segment is spaced from the isolation structure. Preferably, the first electrode located above the third fold line segment has the second thickness.

[0008] Further, the overlap portion includes a first overlap portion and a plurality of second overlap portions. The first overlap portion is located above the first straight portion. The plurality of second overlap portions include a first overlap section and a second overlap section, the first overlap section is located above the first fold line section, and the second overlap section is located above the third fold line section. Wherein, the first overlap portion and the plurality of second overlap portions are an integrated structure. Preferably, the thickness of the end of the second overlap portion away from the first overlap portion is greater than or equal to 0 angstroms and less than the thickness of the first overlap portion; the thickness of the end of the second overlap portion connected to the first overlap portion is less than or equal to the thickness of the first overlap portion and greater than the thickness of the end of the second overlap portion away from the first overlap portion. Preferably, the thickness of the second overlap portion gradually increases in the direction approaching the first overlap portion. Preferably, the thickness of the main body portion and the first overlap portion is less than or equal to 220 angstroms. Preferably, the thickness of the end of the main body portion away from the first overlap portion is less than the thickness of the first overlap portion.

[0009] Further, with the end of the first folded line segment away from the first straight portion as the starting point, the distance between the first folded line segment and the first straight portion in the second direction reduced, and the length of the first folded line segment increased in the first direction, satisfy a first function, and the second direction is perpendicular to the first direction. With the end of the first overlapping section away from the first overlapping portion as the starting point, the distance between the first overlapping section and the first overlapping portion in the second direction reduced, and the thickness of the first overlapping section increased in the first direction satisfy the first function. Preferably, with the end of the third folded line segment away from the first straight portion as the starting point, the distance between the third folded line segment and the first straight portion in the second direction reduced, and the length of the third folded line segment increased in the first direction satisfy a second function. With the end of the second overlapping section away from the first overlapping portion as the starting point, the distance between the second overlapping section and the first overlapping portion in the second direction reduced, and the thickness of the second overlapping section increased in the first direction satisfy the second function.

[0010] Further, the at least one first edge portion includes a first straight portion and a second straight portion, and the plurality of second edge portions include a first folded line portion and a second folded line portion, wherein: the first straight portion and the second straight portion extend along the first direction; the first folded line portion connects the first end of the first straight portion and the first end of the second straight portion, and the second folded line portion connects the second end of the first straight portion and the second end of the second straight portion; and wherein the first electrode located above the first straight portion and above the second straight portion overlaps the isolation structure. Preferably, the first electrode located above the first straight portion and above the second straight portion has the first thickness. Preferably, the first folded line portion includes a first folded line segment and a second folded line segment, wherein: the first folded line segment is connected between the second folded line segment and the first straight portion, the second folded line segment is connected between the first folded line segment and the second straight portion, the angle between the first folded line segment and the first straight portion is greater than 90 degrees, and the angle between the second folded line segment and the second straight portion is greater than 90 degrees; and wherein the first electrode located above the first folded line segment and above the second folded line segment overlaps the isolation structure. Preferably, the first electrode located above the first fold line segment and located above the second fold line segment has the second thickness. Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: the third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the second straight line portion, the angle between the third fold line segment and the first straight line portion is greater than 90 degrees, and the angle between the fourth fold line segment and the second straight line portion is greater than 90 degrees; and wherein the first electrode located above the third fold line segment and located above the fourth fold line segment overlaps the isolation structure; preferably, the first electrode located above the third fold line segment and located above the fourth fold line segment has the second thickness.

[0011] Further, the overlapping portion includes: a plurality of first overlapping portions, the plurality of first overlapping portions include a third overlapping section and a fourth overlapping section, the third overlapping section is located above the first straight portion, and the fourth overlapping section is located above the second straight portion. A plurality of second overlapping portions, the plurality of second overlapping portions include a first overlapping section, a second overlapping section, a fifth overlapping section and a sixth overlapping section, the first overlapping section is located above the first folded line section, the second overlapping section is located above the third folded line section, the fifth overlapping section is located above the second folded line section, and the sixth overlapping section is located above the fourth folded line section. Wherein, the plurality of first overlapping portions and the plurality of second overlapping portions are an integrated structure. Preferably, the thickness of the end of the second overlapping portion away from the first overlapping portion is greater than or equal to 0 angstroms and less than the thickness of the first overlapping portion; the thickness of the end of the second overlapping portion connected to the first overlapping portion is less than or equal to the thickness of the first overlapping portion and greater than the thickness of the end of the second overlapping portion away from the first overlapping portion. Preferably, the thickness of the second overlapping portion gradually increases in the direction close to the first overlapping portion. Preferably, the maximum thickness of the main body is less than or equal to 220 angstroms. Preferably, the maximum thickness of the first overlapping portion is less than or equal to 110 angstroms. Preferably, the thickness of one end of the main body away from the first overlapping portion is less than the thickness of the first overlapping portion.

[0012] Further, with the end of the second folded line segment away from the second straight line portion as the starting point, the distance between the second folded line segment and the second straight line portion in the second direction and the length of the second folded line segment in the first direction satisfy a third function, and the second direction is perpendicular to the first direction. With the end of the fifth overlapping segment away from the fourth overlapping segment as the starting point, the distance between the fifth overlapping segment and the fourth overlapping segment in the second direction and the thickness of the fifth overlapping segment in the first direction satisfy the third function. Preferably, with the end of the fourth folded line segment away from the second straight line portion as the starting point, the distance between the fourth folded line segment and the second straight line portion in the second direction and the length of the fourth folded line segment in the first direction satisfy a fourth function. With the end of the sixth overlapping segment away from the fourth overlapping segment as the starting point, the distance between the sixth overlapping segment and the fourth overlapping segment in the second direction and the thickness of the sixth overlapping segment in the first direction satisfy the fourth function.

[0013] Further, the at least one first edge portion includes a first straight portion, and the plurality of second edge portions include a first folded line portion and a second folded line portion, wherein: the first straight portion extends along the first direction; the first folded line portion connects the first end of the first straight portion and the second folded line portion, and the second folded line portion connects the second end of the first straight portion and the first folded line portion; and wherein the first electrode located above the first straight portion overlaps the isolation structure. Preferably, the first electrode located above the first straight portion has the first thickness. Preferably, the first folded line portion includes a first folded line segment and a second folded line segment, wherein: the first folded line segment is connected between the second folded line segment and the first straight portion, the second folded line segment is connected between the first folded line segment and the second folded line portion, and the angle between the first folded line segment and the first straight portion is greater than 90 degrees; and wherein the first electrode located above the first folded line segment overlaps the isolation structure. Preferably, the first electrode located above the first folded line segment has the second thickness. Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: the third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the first straight line portion, and the angle between the third fold line segment and the first straight line portion is greater than 90 degrees; and wherein the first electrode located above the third fold line segment overlaps the isolation structure. Preferably, the first electrode located above the third fold line segment has the second thickness.

[0014] Further, the overlapping portion includes a first overlapping portion and a plurality of second overlapping portions. The first overlapping portion is located above the first straight portion. The plurality of second overlapping portions include a first overlapping section, a second overlapping section, a fifth overlapping section and a sixth overlapping section, the first overlapping section is located above the first folded line section, the second overlapping section is located above the third folded line section, the fifth overlapping section is located above the second folded line section, and the sixth overlapping section is located above the fourth folded line section. Wherein, the first overlapping portion and the plurality of second overlapping portions are an integrated structure. Preferably, the thickness of the end of the second overlapping portion away from the first overlapping portion is greater than or equal to 0 angstroms and less than the thickness of the first overlapping portion; the thickness of the end of the second overlapping portion connected to the first overlapping portion is less than or equal to the thickness of the first overlapping portion and greater than the thickness of the end of the second overlapping portion away from the first overlapping portion. Preferably, the thickness of the second overlapping portion gradually increases in the direction close to the first overlapping portion.

[0015] Further, the light emitting device includes a first light emitting device, a second light emitting device and a third light emitting device. In the first direction and the second direction, the first light emitting device and the third light emitting device are alternately arranged. The center line of the two first light emitting devices and the two third light emitting devices forms a virtual quadrilateral, and the second light emitting device is located in the virtual quadrilateral. Preferably, the wavelength of the light emitted by the first light emitting device is greater than the wavelength of the light emitted by the second light emitting device and the third light emitting device. Preferably, the wavelength of the light emitted by the second light emitting device is greater than the wavelength of the light emitted by the third light emitting device.

[0016] Further, the isolation opening includes a first opening, a second opening and a third opening. At least a portion of the first light emitting device is located in the first opening. At least a portion of the second light emitting device is located in the second opening. At least a portion of the third light emitting device is located in the third opening. The aperture of the second opening is smaller than the apertures of the first opening and the third opening. Preferably, the size of the first opening is smaller than the aperture of the third opening.

[0017] Further, the contact area between the overlapped portion located above the plurality of second edge portions and the isolation structure is not greater than the contact area between the overlapped portion located above the at least one first edge portion and the isolation structure. Preferably, in the direction approaching the first edge portion, the contact area between the overlapped portion located above the plurality of second edge portions and the isolation structure gradually increases.

[0018] Furthermore, the light-emitting device further comprises a second electrode, which is disposed between the pixel defining layer and the substrate, and at least a portion of the surface of the second electrode is exposed in the corresponding pixel opening. Preferably, the first electrode extends from the surface of the light-emitting functional layer away from the substrate to the side wall of the isolation structure. Preferably, the orthographic projection of the first electrode on the substrate covers the orthographic projection of the light-emitting functional layer on the substrate.

[0019] Furthermore, the isolation structure further comprises an adhesive portion, the adhesive portion is arranged on a side of the support portion close to the substrate, and the adhesive portion is arranged to protrude from the support portion toward the isolation opening. Preferably, the materials of the adhesive portion, the support portion and the barrier portion comprise metal materials. Preferably, the overlapping portion overlaps the adhesive portion.

[0020] Furthermore, the display panel further comprises an encapsulation layer, the encapsulation layer is provided on a side of the light emitting device away from the substrate, and the orthographic projection of the encapsulation layer on the substrate covers the orthographic projection of the light emitting device on the substrate. Preferably, the encapsulation layer comprises a plurality of sub-encapsulation parts, the sub-encapsulation parts extend from a surface of the first electrode away from the substrate to a side of the isolation structure away from the substrate, and there is a gap between two adjacent sub-encapsulation parts. Preferably, the material of the encapsulation layer comprises an inorganic material.

[0021] The present invention further provides a display device, comprising the display panel as described above.

[0022] The advantages of the present invention are as follows: a display panel and a display device of the present invention improve the overlap yield between the first electrode and the isolation structure by changing the overlap structure of the first electrode of the light-emitting device, thereby improving the yield of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of partitions of a display panel in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A magnified schematic diagram of the pixel opening in the middle A frame;

[0026] Figure 3 Schematic diagram of the layered structure of a single-side overlap type light-emitting device in an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the planar structure of a single-side overlapped first electrode and a corresponding pixel opening in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the distribution structure of the isolation openings in other embodiments of the present invention;

[0029] Figure 6 A schematic diagram of a layered structure of a double-sided overlapping light-emitting device in another embodiment of the present invention;

[0030] Figure 7 It is a schematic diagram of the planar structure of a double-sided overlapping first electrode and a corresponding pixel opening in another embodiment of the present invention;

[0031] Figure 8Schematic diagram of evaporation of a single-side overlapped first electrode in an embodiment of the present invention;

[0032] Fig. 9 A schematic diagram of the evaporation of a double-sided overlapping first electrode in another embodiment of the present invention;

[0033] Fig.10 It is a schematic diagram of a planar structure of a single-cut-edge pixel opening in another embodiment of the present invention;

[0034] Fig.11 A schematic diagram of the distribution structure of the isolation openings in another embodiment of the present invention;

[0035] Fig.12 Schematic diagram of function images of the first function and the second function in an embodiment of the present invention;

[0036] Fig.13 It is a schematic diagram of function graphs of the third function and the fourth function in another embodiment of the present invention.

[0037] The components in the figure are shown as follows:

[0038] Display panel 1; Display area AA;

[0039] Non-display area NA; substrate 10;

[0040] Pixel defining layer 20; Pixel opening 21;

[0041] A first edge portion 211; A first straight portion 2111;

[0042] A second straight line portion 2112; A second edge portion 212;

[0043] First fold line portion 2121; First fold line segment 21211;

[0044] Second fold line segment 21212; Second fold line portion 2122;

[0045] A third fold line segment 21221; A fourth fold line segment 21222;

[0046] Light emitting device 30; Second electrode 31;

[0047] Main body portion 311; First overlapping portion 312;

[0048] The third overlapping section 3121; The fourth overlapping section 3122;

[0049] Second overlapping portion 313; First overlapping section 3131;

[0050] The second overlapping section 3132; The fifth overlapping section 3133;

[0051] Sixth overlapping section 3134; Light-emitting functional layer 32;

[0052] A first electrode 33; A first light emitting device 30R;

[0053] A second light emitting device 30G; A third light emitting device 30B;

[0054] Isolation structure 40; Support portion 41;

[0055] Isolation portion 42; Isolation opening 43;

[0056] Adhesive portion 44;

[0057] A first opening 43R; A second opening 43G;

[0058] The third opening 43B; the encapsulation layer 50;

[0059] Sub-packaging part 51; Nozzle 2. DETAILED DESCRIPTION

[0060] The preferred embodiments of the present invention are described below with reference to the drawings in the specification to prove that the present invention can be implemented. The embodiments of the invention can fully introduce the present invention to those skilled in the art, making its technical content clearer and easier to understand. The present invention can be embodied through many different forms of embodiments of the invention, and the protection scope of the present invention is not limited to the embodiments mentioned in the text.

[0061] In an embodiment of the present invention, a display panel 1 is provided. Figure 3As shown in , the display panel 1 also includes a substrate 10, an isolation structure 40 and a light-emitting device 30. The substrate 10 is used to drive the light-emitting device 30; the isolation structure 40 is arranged on one side of the substrate 10 and encloses a plurality of isolation openings 43, which are used to block the evaporation material and disconnect the evaporation materials in adjacent isolation openings 43, thereby isolating different light-emitting devices 30; at least part of the light-emitting device 30 is arranged in the corresponding isolation opening 43, and the light-emitting device 30 as an independent light-emitting unit can be turned on or off according to the corresponding display signal under the drive of the substrate 10. A first electrode 33 is provided in the light-emitting device 30, and the first electrode 33 can obtain a VSS power supply signal by being electrically connected to the isolation structure 40. (The composition, preparation, etc. of the isolation structure 40 mentioned below are described in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072 , CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, CN117500332A for reference. )

[0062] Specifically, Figure 1 As shown in , the display panel 1 of the present invention has a display area AA and a non-display area NA connected to the display area AA. A plurality of light-emitting devices 30 are provided in the display area AA, and each light-emitting device 30 independently emits light, thereby forming a display image in the display area AA. A driving device and a plurality of signal wirings are provided in the non-display area NA, one end of the signal wiring is electrically connected to the driving device, and the other end thereof extends to the display area AA and is electrically connected to the light-emitting device 30 located in the display area AA. Among them, the driving device can be selected from electronic devices such as a flexible printed circuit (FPC) and a driving chip (IC). The driving device can send a display signal to the display area AA through the signal wiring according to the display requirements, and the display area AA can light up the corresponding light-emitting device 30 according to the display signal, thereby realizing the control of the display image.

[0063] like Figure 3As shown in , the substrate 10 is an array substrate, which includes thin film transistors arranged in an array and signal wiring. Each light-emitting device 30 is electrically connected to at least one thin film transistor located in the display area AA. The driving device can be bound to the substrate 10 in the non-display area NA through the COF (Chip On Film) process or the FOP (FPC On Panel) process, so that the driving device is electrically connected to one end of the signal wiring. The signal wiring extends from the non-display area NA to the display area AA, and its other end is electrically connected to the thin film transistor located in the display area AA. The driving device transmits the display signal to the corresponding thin film transistor through the signal wiring. The thin film transistor turns on the corresponding light-emitting device 30 according to the display signal, thereby prompting the light-emitting device 30 at the corresponding position to emit light, thereby forming an image screen. At the same time, the driving chip can also realize the change of the display screen by sending different display signals.

[0064] The light emitting device 30 is arranged on one side of the substrate 10, and includes a second electrode 31, a light emitting functional layer 32 and a first electrode 33. The second electrode 31 is arranged on one side of the substrate 10 and is electrically connected to the corresponding thin film transistor in the substrate 10. The light emitting functional layer 32 is located on the side of the second electrode 31 away from the substrate 10. The first electrode 33 is stacked and arranged on a layer of the light emitting functional layer 32 away from the substrate 10, and extends from the light emitting functional layer 32 away from the substrate 10 to the surface of the isolation structure 40 facing the isolation opening 43, thereby promoting the electrical connection between the first electrode 33 and the isolation structure 40.

[0065] like Figure 1 and Figure 2As shown in , the display panel 1 has a plurality of light emitting devices 30 capable of emitting different colors, namely, a first light emitting device 30R, a second light emitting device 30G and a third light emitting device 30B. Among them, the wavelength of the light emitted by the first light emitting device 30R is greater than the wavelength of the light emitted by the second light emitting device 30G and the third light emitting device 30B, and the wavelength of the light emitted by the second light emitting device 30G is greater than the wavelength of the light emitted by the third light emitting device 30B. For example, the first light emitting device 30R can be used to emit red light, the second light emitting device 30G can be used to emit green light, and the third light emitting device 30B can be used to emit blue light. The display of color images can be achieved by uniformly distributing these light emitting devices 30 capable of emitting light of different colors. Specifically, in the second direction X and the first direction Y parallel to the surface of the substrate 10 and perpendicular to each other, the first light emitting device 30R and the third light emitting device 30B are alternately arranged, and the center line connecting the two first light emitting devices 30R and the two third light emitting devices 30B forms a virtual quadrilateral, and the second light emitting device 30G is located in the virtual quadrilateral. Furthermore, the size of the pixel opening 21 provided with the first light-emitting device 30R is smaller than the size of the pixel opening 21 provided with the second light-emitting device 30G, and the size of the pixel opening 21 provided with the second light-emitting device 30G is smaller than the size of the pixel opening 21 provided with the third light-emitting device 30B, thereby ensuring that the light-emitting efficiency and service life of the light-emitting devices 30 of different colors are similar.

[0066] like Figure 3 As shown in , the display panel 1 further includes a pixel defining layer 20 located on the same side of the substrate 10 as the light emitting device 30. The pixel defining layer 20 is disposed on the surface of the substrate 10 and covers the edge of the second electrode 31. The pixel defining layer 20 is provided with a plurality of pixel openings 21, which penetrate the pixel defining layer 20, and at least a portion of the light emitting device 30 is disposed in the pixel opening 21. Specifically, a portion of the surface of the second electrode 31 is exposed in the corresponding pixel opening 21, and the light emitting function layer 32 covers the exposed surface of the second electrode 31 in the corresponding pixel opening 21, and extends from the surface of the second electrode 31 to the side of the pixel defining layer 30 away from the substrate 10.

[0067] Specifically, Figure 4As shown in , the edge of the pixel opening 21 includes at least one first edge portion 211 and a plurality of second edge portions 212. In the embodiment of the present invention, the pixel opening 21 has a first edge portion 211, the first edge portion 211 extends along the first direction Y, and the second edge portion 212 intersects with the first edge portion 211. The first edge portion 211 includes a first straight portion 2111 and a second straight portion 2112, and the second edge portion 212 includes a first folded line portion 2121 and a second folded line portion 2122. The first straight portion 2111 and the second straight portion 2112 extend along the first direction Y, the first folded line portion 2121 connects the first end of the first straight portion 2111 and the first end of the second straight portion 2112, and the second folded line portion 2122 connects the second end of the first straight portion 2111 and the second end of the second straight portion 2112, thereby forming a pixel opening 21 closed on all sides.

[0068] like Figure 3 As shown in , the isolation structure 40 is arranged on the side of the pixel defining layer 20 away from the substrate 10, and includes a support portion 41, an isolation portion 42 and an isolation opening 43. The support portion 41 is arranged on the side of the pixel defining layer 20 away from the substrate 10, and the isolation portion 42 is stacked and arranged on the side of the support portion 41 away from the substrate 10. The isolation opening 43 penetrates the support portion 41 and the isolation portion 42 and is connected to the corresponding pixel opening 21, so that part of the material in the light-emitting device 30 can be evaporated in the pixel opening 21. The materials of the support portion 41 and the isolation portion 42 both include metal materials, and the first electrode 33 is electrically connected to the support portion 41 by extending from the surface of the light-emitting functional layer 32 to the side wall of the support portion 41 facing the isolation opening 43. As shown in Figure 2 and Figure 3 As shown in , corresponding to the pixel openings 21 of different sizes, the isolation opening 43 also includes a first opening 43R, a second opening 43G and a third opening 43B, at least a portion of the first light-emitting device is located in the first opening 43R, at least a portion of the second light-emitting device is located in the second opening 43G, at least a portion of the third light-emitting device is located in the third opening 43B, and the aperture of the second opening 43G is smaller than the apertures of the first opening 43R and the third opening 43B, and the size of the first opening 43R is smaller than the aperture of the third opening 43B. Among them, the positive projection of the isolation opening 43 on the substrate 10 is a polygon, and in the first direction Y, the widths of the two ends of the isolation opening 43 are smaller than the width at the middle position thereof. In other embodiments of the present invention, the isolation opening 43 can also be as follows Figure 5 The quadrilateral shown in the figure is at least one of a right-angled quadrilateral, a rounded quadrilateral or a cut-corner quadrilateral; the quadrilateral isolation opening 43 has two mutually perpendicular diagonals, and the two diagonals are parallel to the second direction X and the first direction Y respectively.

[0069] Furthermore, the isolation structure 40 further includes an adhesive portion 44, which is disposed on a side of the support portion 41 close to the substrate 10, and the adhesive portion 44 protrudes from the support portion 41 toward the isolation opening 43. The overlapping portion of the first electrode 33 also overlaps with the adhesive portion 44, and the material of the adhesive portion 44 also includes a metal material.

[0070] like Figure 3 As shown in , the orthographic projection of the light-emitting functional layer 32 of the light-emitting device 30 on the substrate 10 does not overlap with the orthographic projection of the support portion 41 on the substrate 10, and there is a gap between them. In the second direction X, one side of the first electrode 33 extends from the surface of the light-emitting functional layer 32 away from the substrate 10 to the side wall of the support portion 41 facing the isolation opening 43 (the side wall is also the side wall of the isolation opening 43), and is electrically connected to the support portion 41, thereby forming a single-sided overlap type first electrode 33, and the first electrode 33 can obtain a power signal through the support portion 41.

[0071] Specifically, the first electrode 33 located above the first edge portion 211 and overlapping the isolation structure 40 has a first thickness, and the first electrode 33 located above the plurality of second edge portions 212 has a second thickness, which is not greater than the first thickness. Figure 4 As shown in , the first electrode 33 includes a main body portion 311 and an overlapping portion. The orthographic projection of the main body portion 311 on the substrate 10 is located outside the orthographic projection range of the isolation structure 40 on the substrate 10, and the orthographic projection of the main body portion 311 on the substrate 10 is located outside the orthographic projection range of the isolation portion 42 on the substrate 10. The overlapping portion is connected to the main body portion 311 and overlaps with the isolation structure 40. The orthographic projection of the overlapping portion on the substrate 10 is located within the orthographic projection range of the isolation structure 40 on the substrate 10, and the orthographic projection of the overlapping portion on the substrate 10 is located within the orthographic projection range of the isolation portion 42 on the substrate 10. The overlapping portion located above the first edge portion 211 has a first thickness, and the overlapping portion located above the second edge portion 212 has a second thickness, and the second thickness is not greater than the first thickness, that is, the thickness of the overlapping portion on both sides in the first direction Y is not greater than the thickness at its center position.

[0072] Further, in the display panel 1 provided in the embodiment of the present invention, the light emitting device 30 included therein is a single-sided overlapped light emitting device, that is, the first electrode 33 of the light emitting device 30 is overlapped with the isolation structure 40 on only one side of the two sides in the second direction X to achieve electrical connection. The specific form of the first electrode 33 of the single-sided overlapped light emitting device 30 and the corresponding pixel opening 21 is as follows:

[0073] The first electrode 33 located above the first straight portion 2111 overlaps with the isolation structure 40, the first electrode 33 located above the second straight portion 2112 is spaced apart from the isolation structure 40, and the first electrode 33 located above the first straight portion 2111 and above the second straight portion 2112 has a first thickness.

[0074] The first fold line portion 2121 includes a first fold line segment 21211 and a second fold line segment 21212. The two ends of the first fold line segment 21211 are respectively connected to the second fold line segment 21212 and the first straight line portion 2111. The second fold line segment 21212 is connected between the first fold line segment 21211 and the second straight line portion 2112. The angle between the first fold line segment 21211 and the first straight line portion 2111 is greater than 90 degrees, and the angle between the second fold line segment 21212 and the second straight line portion 2112 is greater than 90 degrees. The first electrode 33 located above the first fold line segment 21211 overlaps with the isolation structure 40, the first electrode 33 located above the second fold line segment 21212 is spaced from the isolation structure 40, and the first electrode 33 located above the first fold line segment 21211 has a second thickness.

[0075] The second fold line portion 2122 includes a third fold line segment 21221 and a fourth fold line segment 21222. The third fold line segment 21221 is connected between the fourth fold line segment 21222 and the first straight line portion 2111. The fourth fold line segment 21222 is connected between the third fold line segment 21221 and the second straight line portion 2112. The angle between the third fold line segment 21221 and the first straight line portion 2111 is greater than 90 degrees, and the angle between the fourth fold line segment 21222 and the second straight line portion 2112 is greater than 90 degrees. The first electrode 33 located above the third fold line segment 21221 overlaps with the isolation structure 40, the first electrode 33 located above the fourth fold line segment 21222 is spaced from the isolation structure 40, and the first electrode 33 located above the third fold line segment 21221 has a second thickness.

[0076] The overlapping portion includes a first overlapping portion 312 and a plurality of second overlapping portions 313, and the first overlapping portion 312 and the second overlapping portion 313 may be an integrated structure, thereby forming an integrated overlapping portion. The first overlapping portion 312 is located above the first straight portion 2111. The second overlapping portion 313 includes a first overlapping section 3131 and a second overlapping section 3132, the first overlapping section 3131 is located above the first fold line section 21211, and the second overlapping section 3132 is located above the third fold line section 21221.

[0077] (The above content does not refer to the top, but is used to describe the relative positions of various parts of the first electrode 33)

[0078] The maximum thickness of the main body 311 may be one of 120-220 angstroms, and the thickness of the end of the main body 311 away from the first lap joint 312 may be less than the thickness of the first lap joint 312. The thickness of the first lap joint 312 is less than or equal to 220 angstroms. Preferably, the maximum thickness of the main body 311 and the maximum thickness of the first lap joint 312 may be 150 angstroms. The thickness of the end of the second lap joint 313 away from the first lap joint 312 is greater than or equal to 0 angstroms and less than the thickness of the first lap joint 312. The thickness of the end of the second lap joint 313 connected to the first lap joint 312 is less than or equal to the thickness of the first lap joint 312 and greater than the thickness of the end away from the first lap joint 312. Preferably, as the spacing between the second overlap portion 313 and the first overlap portion 312 gradually decreases, the thickness of the second overlap portion 313 gradually increases, that is, in the direction close to the first overlap portion 312, the second overlap portion 313 gradually increases from 0 angstroms to the same or similar thickness as the first overlap portion 312 (for example, less than or equal to 150 angstroms), and the function graph of the gradually increasing thickness of the second overlap portion 313 is consistent with the image of the arc morphology function of the first arc and the second arc, so that the thickness at both ends of the first electrode 33 is smaller than the thickness at the middle position of the first electrode 33, thereby improving the effective overlap rate of the first electrode 33.

[0079] Further, with the end of the first folded line segment 21211 away from the first straight portion 2111 as the starting point, the distance between the first folded line segment 21211 and the first straight portion 2111 in the second direction X and the length of the first folded line segment 21211 increased in the first direction Y satisfy the first function. With the end of the first overlapping segment 3131 away from the first overlapping portion 312 as the starting point, the distance between the first overlapping segment 3131 and the first overlapping portion 312 in the second direction X and the thickness of the first overlapping segment 3131 increased in the first direction Y satisfy the first function. With the end of the third folded line segment 21221 away from the first straight portion 2111 as the starting point, the distance between the third folded line segment 21221 and the first straight portion 2111 in the second direction X and the length of the third folded line segment 21221 increased in the first direction Y satisfy the second function. Taking the end of the second overlapping section 3132 away from the first overlapping portion 312 as the starting point, the distance between the second overlapping section 3132 and the first overlapping portion 312 in the second direction X and the thickness increased by the second overlapping section 3132 in the first direction Y satisfy the second function. (The function graphs of the first function and the second function are shown in FIG. Fig.12 )

[0080] Furthermore, in the display panel 1 provided in another embodiment of the present invention, the light emitting device 30 included therein may also be a double-sided overlapping light emitting device, that is: Figure 6As shown in FIG, both sides of the first electrode 33 of the light emitting device 30 in the second direction X are overlapped with the isolation structure 40 to achieve electrical connection. Figure 7 As shown in FIG. 1 , the specific forms of the first electrode 33 of the double-sided overlapping light-emitting device 30 and the corresponding pixel opening 21 are as follows:

[0081] The first electrode 33 located above the first straight portion 2111 and above the second straight portion 2112 overlaps with the isolation structure 40 , and the first electrode 33 located above the first straight portion 2111 and above the second straight portion 2112 has a first thickness.

[0082] The first fold line portion 2121 includes a first fold line segment 21211 and a second fold line segment 21212. The two ends of the first fold line segment 21211 are respectively connected to the second fold line segment 21212 and the first straight line portion 2111. The second fold line segment 21212 is connected between the first fold line segment 21211 and the second straight line portion 2112. The angle between the first fold line segment 21211 and the first straight line portion 2111 is greater than 90 degrees, and the angle between the second fold line segment 21212 and the second straight line portion 2112 is greater than 90 degrees. The first electrode 33 located above the first fold line segment 21211 and the second fold line segment 21212 overlaps the isolation structure 40, and the first electrode 33 located above the first fold line segment 21211 and the second fold line segment 21212 has a second thickness.

[0083] The second fold line portion 2122 includes a third fold line segment 21221 and a fourth fold line segment 21222. The third fold line segment 21221 is connected between the fourth fold line segment 21222 and the first straight line portion 2111. The fourth fold line segment 21222 is connected between the third fold line segment 21221 and the second straight line portion 2112. The angle between the third fold line segment 21221 and the first straight line portion 2111 is greater than 90 degrees, and the angle between the fourth fold line segment 21222 and the second straight line portion 2112 is greater than 90 degrees. The first electrode 33 located above the third fold line segment 21221 and the fourth fold line segment 21222 overlaps the isolation structure 40, and the first electrode 33 located above the third fold line segment 21221 and the fourth fold line segment 21222 has a second thickness.

[0084] The overlapping portion includes a plurality of first overlapping portions 312 and a plurality of second overlapping portions 313, and the first overlapping portions 312 and the second overlapping portions 313 may be an integrated structure, thereby forming an integrated overlapping portion. The plurality of first overlapping portions 312 include a third overlapping section 3121 and a fourth overlapping section 3122, wherein the third overlapping section 3121 is located above the first straight portion 2111, and the fourth overlapping section 3122 is located above the second straight portion 2112. The plurality of second overlapping portions 313 include a first overlapping section 3131, a second overlapping section 3132, a fifth overlapping section 3133, and a sixth overlapping section 3134, wherein the first overlapping section 3131 is located above the first folded line section 21211, the second overlapping section 3132 is located above the third folded line section 21221, the fifth overlapping section 3133 is located above the second folded line section 21212, and the sixth overlapping section 3134 is located above the fourth folded line section 21222.

[0085] In this embodiment, the thickness of the main body 311 may be greater than the thickness of the first overlap portion 312. Preferably, due to the limitation of the evaporation process, the thickness of the main body 311 is in the range of 120-220 angstroms, and the thickness of the first overlap portion 312 is in the range of 60-110 angstroms. For example, the thickness of the main body 311 may be 150 angstroms, and the thickness of the first overlap portion 312 is less than or equal to 75 angstroms. The thickness of the second overlap portion 313 at one end away from the first overlap portion 312 is greater than or equal to 0 angstroms and less than the thickness of the first overlap portion 312, and the thickness of the end connected to the first overlap portion 312 is less than or equal to the thickness of the first overlap portion 312 and greater than the thickness of the end away from the first overlap portion 312. Preferably, as the spacing between the second overlap portion 313 and the first overlap portion 312 gradually decreases, the thickness of the second overlap portion 313 gradually increases, that is, in the direction close to the first overlap portion 312, the second overlap portion 313 gradually increases from 0 angstroms to the same or similar thickness as the first overlap portion 312 (for example, less than or equal to 75 angstroms), and the function graph of the gradual increase in the thickness of the second overlap portion 313 is consistent with the image of the arc morphology function of the first arc and the second arc, so that the thickness of both ends of the first electrode 33 is smaller than the thickness at the middle position of the first electrode 33, thereby improving the effective overlap rate of the first electrode 33. At the same time, the double-sided overlapped first electrode can also prevent the subsequent film layer process from excessively etching the pixel defining layer and causing defects such as cracks and grooves on the surface of the pixel defining layer.

[0086] Further, with the end of the second folded line segment 21212 away from the second straight line portion 2112 as the starting point, the distance between the second folded line segment 21212 and the second straight line portion 2112 in the second direction X and the length of the second folded line segment 21212 increased in the first direction Y satisfy a third function, and the second direction X is perpendicular to the first direction Y. With the end of the fifth overlapping segment 3133 away from the fourth overlapping segment 3122 as the starting point, the distance between the fifth overlapping segment 3133 and the fourth overlapping segment 3122 in the second direction X and the thickness of the fifth overlapping segment 3133 increased in the first direction Y satisfy the third function. Specifically, with the end of the fourth folded line segment 21222 away from the second straight line portion 2112 as the starting point, the distance between the fourth folded line segment 21222 and the second straight line portion 2112 in the second direction X and the length of the fourth folded line segment 21222 increased in the first direction Y satisfy a fourth function. Taking the end of the sixth overlapping section 3134 away from the fourth overlapping section 3122 as the starting point, the distance between the sixth overlapping section 3134 and the fourth overlapping section 3122 in the second direction X and the thickness increased by the sixth overlapping section 3134 in the first direction Y satisfy the fourth function. (The third function and the fourth function are as shown in Fig.13 )

[0087] Furthermore, in other embodiments of the present invention, the single-sided overlapped first electrode and the double-sided overlapped first electrode can be freely matched according to actual needs, for example: all light-emitting devices are provided with the single-sided overlapped first electrode, or all light-emitting devices are provided with the double-sided overlapped first electrode, or some light-emitting devices are provided with the single-sided overlapped first electrode, and the remaining light-emitting devices are provided with the double-sided overlapped first electrode. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0088] Further, the contact area between the overlapped portion located above the plurality of second edge portions 212 and the isolation structure 40 is not greater than the contact area between the overlapped portion located above at least one first edge portion 211 and the isolation structure 40, that is, the contact area between the second overlapped portion 313 and the isolation structure 40 is not greater than the contact area between the first overlapped portion 312 and the isolation structure 40. Preferably, the contact area between the second overlapped portion 313 and the isolation structure 40 is smaller than the contact area between the first overlapped portion 312 and the isolation structure 40. Moreover, in the direction close to the first edge portion 211, the contact area between the overlapped portion located above the plurality of second edge portions 212 and the isolation structure 40 gradually increases, that is, the contact area between the second overlapped portion 313 and the isolation structure 40 gradually increases in the direction close to the first overlapped portion 312.

[0089] Furthermore, the orthographic projection of the isolation portion 42 on the substrate 10 covers the orthographic projection of the support portion 41 on the substrate 10, and the orthographic projection area of ​​the isolation portion 42 on the substrate 10 is larger than the orthographic projection area of ​​the support portion 41 on the substrate 10, so that the isolation portion 42 can completely cover the support portion 41, and thus when preparing the light-emitting functional layer 32, it can prevent the material of the light-emitting functional layer 32 from being evaporated onto the support portion 41, and when preparing the first electrode 33, by adjusting the evaporation angle of the first electrode 33 material, the coverage area of ​​the first electrode 33 can be made larger than the coverage area of ​​the light-emitting functional layer 32, so that the first electrode 33 can extend from the surface of the light-emitting functional layer 32 away from the substrate 10 to the side wall of the support portion 41 facing the isolation opening 43, so as to facilitate the overlap of the first electrode 33 and the support portion 41. Specifically, when preparing a light-emitting device 30 of a single-sided overlap type of the first electrode 33, such as Figure 8 As shown in , the nozzles 2 in the evaporation equipment for preparing the first electrode 33 can be tilted toward the first straight portion 2111 side of the pixel opening 21, so that all the nozzles 2 are directed toward the side wall of the support portion 41 corresponding to the first straight portion 2111, so that the material ejected by the nozzles 2 can be deposited on the side wall of the support portion 41 corresponding to the first straight portion 2111. When preparing the double-sided overlapped light-emitting device 30 of the first electrode 33, as shown in Fig. 9 As shown in the figure, the nozzle 2 in the evaporation equipment for preparing the first electrode 33 can be partially inclined toward the first straight portion 2111 side of the pixel opening 21, and partially inclined toward the second straight portion 2112 side, so that part of the nozzle 2 is directed toward the side wall of the support portion 41 corresponding to the first straight portion 2111, and part of the nozzle 2 is directed toward the side wall of the support portion 41 corresponding to the second straight portion 2112, so that the material ejected by the nozzle 2 can be deposited on the side walls of the support portion 41 corresponding to the first straight portion 2111 and the second straight portion 21122.

[0090] The encapsulation layer 50 is arranged on the side of the light emitting device 30 away from the substrate 10, and the orthographic projection of the encapsulation layer 50 on the substrate 10 covers the orthographic projection of the light emitting device 30 on the substrate 10. The encapsulation layer 50 includes a plurality of sub-encapsulation parts 51, and each isolation opening 43 is provided with at least one sub-encapsulation part 51. Specifically, the sub-encapsulation part 51 extends from the surface of the first electrode 33 away from the substrate 10 to the side of the isolation structure 40 away from the substrate 10. The encapsulation layer 50 is used to encapsulate and protect the display device in the display panel 1, and its material includes inorganic materials, and can be prepared by chemical vapor deposition (CVD).

[0091] Further, in the display panel 1 provided in the embodiment of the present invention, the pixel opening 21 is a double-cut edge (double straight edge) structure having a first straight portion 2111 and a second straight portion 2112 arranged opposite to each other, but in another embodiment of the present invention, the pixel opening 21 may also be a single-cut edge (single straight edge) structure, and the first electrode 33 of the light emitting device 30 arranged in the pixel opening 21 may also be a single-sided overlap type. Fig.10 As shown in FIG. 1 , the specific forms of the single-cut pixel opening 21 and the corresponding first electrode 33 are as follows:

[0092] The edge of the pixel opening 21 includes at least one first edge portion 211 and a plurality of second edge portions 212. In this embodiment, the pixel opening 21 has a first edge portion 211, the first edge portion 211 extends along the first direction Y, and the second edge portion 212 intersects with the first edge portion 211. The first edge portion 211 includes a first straight portion 2111, and the second edge portion 212 includes a first folded line portion 2121 and a second folded line portion 2122. The first straight portion 2111 extends along the first direction Y, the two ends of the first folded line portion 2121 are respectively connected to the first end of the first straight portion 2111 and the second folded line portion 2122, and the two ends of the second folded line portion 2122 are respectively connected to the second end of the first straight portion 2111 and the first folded line portion 2121, thereby forming a polygonal pixel opening 21 with four sides closed.

[0093] The first electrode 33 located above the first straight portion 2111 overlaps with the isolation structure 40 , and the first electrode 33 located above the first straight portion 2111 has a first thickness.

[0094] The first fold line portion 2121 includes a first fold line segment 21211 and a second fold line segment 21212. The two ends of the first fold line segment 21211 are respectively connected to the second fold line segment 21212 and the first straight line portion 2111. The two ends of the second fold line segment 21212 are respectively connected to the first fold line segment 21211 and the second fold line portion 2122. The angle between the first fold line segment 21211 and the first straight line portion 2111 is greater than 90 degrees. The first electrode 33 located above the first fold line segment 21211 overlaps the isolation structure 40, and the first electrode 33 located above the first fold line segment 21211 has a second thickness.

[0095] The second fold line portion 2122 includes a third fold line segment 21221 and a fourth fold line segment 21222, the two ends of the third fold line segment 21221 are respectively connected to the fourth fold line segment 21222 and the first straight line portion 2111, the two ends of the fourth fold line segment 21222 are respectively connected to the third fold line segment 21221 and the first straight line portion 2121, and the angle between the third fold line segment 21221 and the first straight line portion 2111 is greater than 90 degrees. The first electrode 33 located above the third fold line segment 21221 overlaps the isolation structure 40, and the first electrode 33 located above the third fold line segment 21221 has a second thickness.

[0096] Further, in this embodiment, the overlapping portion of the first electrode 33 includes a first overlapping portion 312 and a plurality of second overlapping portions 313, and the first overlapping portion 312 and the second overlapping portion 313 may also be an integrated structure. The first overlapping portion 312 is located above the first straight portion 2111. The second overlapping portion 313 includes a first overlapping section 3131, a second overlapping section 3132, a fifth overlapping section 3133 and a sixth overlapping section 3134, the first overlapping section 3131 is located above the first fold line section 21211, the second overlapping section 3132 is located above the third fold line section 21221, the fifth overlapping section 3133 is located above the second fold line section 21212, and the sixth overlapping section 3134 is located above the fourth fold line section 21222. The thickness of the second overlap portion 313 at one end away from the first overlap portion 312 is greater than or equal to 0 angstroms and less than the thickness of the first overlap portion 312; the thickness of the second overlap portion 313 at one end connected to the first overlap portion 312 is less than or equal to the thickness of the first overlap portion 312 and greater than the thickness of the second overlap portion 313 at one end away from the first overlap portion 312. In addition, the thickness of the second overlap portion 313 gradually increases in the direction close to the first overlap portion 312, thereby causing the thickness at both ends of the first electrode 33 to be less than the thickness at the middle position of the first electrode 33, thereby improving the effective overlap rate of the first electrode 33.

[0097] Furthermore, if Fig.11 As shown in , in this embodiment, the isolation opening 43 in the display panel 1 can also form a similar opening shape according to the structure of the above-mentioned pixel opening 21. In addition, the arrangement of the light-emitting devices 30 of different colors and the isolation openings 43 of different sizes in the display panel 1 can also be the same as that in the above-mentioned display panel, so no further details are given here. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0098] In another embodiment of the present invention, a display device is provided, which may be an OLED display device, comprising any one of the above-mentioned display panels 1. The display device may be any display device with a display function, such as a mobile phone, a notebook computer, a tablet computer, etc.

[0099] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A display panel, characterized in that: include: substrate; A pixel defining layer is provided on one side of the substrate, the pixel defining layer comprises a plurality of pixel openings, the edges of the pixel openings comprise at least one first edge portion and a plurality of second edge portions, the at least one first edge portion extends along a first direction, and the second edge portion intersects with the first edge portion; An isolation structure, disposed on one side of the substrate, the isolation structure encloses a plurality of isolation openings, and the isolation structure is connected to the corresponding pixel openings; A plurality of light-emitting devices, each of which comprises a light-emitting functional layer and a first electrode which are sequentially stacked in a direction away from the substrate, wherein at least a portion of the first electrode is located in the corresponding isolation opening; The first electrode located above the at least one first edge portion and overlapping the isolation structure has a first thickness, and the first electrode located above the plurality of second edge portions has a second thickness, and the second thickness is not greater than the first thickness.

2. The display panel according to claim 1, wherein: The first electrode located above the plurality of second edge portions and overlapping the isolation structure has the second thickness; Preferably, the first electrode comprises: A main body, wherein an orthographic projection of the main body on the substrate is outside a range of an orthographic projection of the isolation structure on the substrate; an overlapping portion, connected to the main body and overlapping the isolation structure, wherein an orthographic projection of the overlapping portion on the substrate is within a range of an orthographic projection of the isolation structure on the substrate; The overlapping portion located above the at least one first edge portion has the first thickness, and the overlapping portion located above the plurality of second edge portions has the second thickness; Preferably, the isolation structure comprises: A supporting portion, disposed on one side of the substrate; An isolation portion is provided on a side of the support portion away from the substrate, and the isolation portion is provided protruding from the support portion toward the isolation opening; The orthographic projection of the main body on the substrate is outside the orthographic projection range of the isolation portion on the substrate, and the orthographic projection of the overlapping portion on the substrate is within the orthographic projection range of the isolation portion on the substrate.

3. The display panel according to claim 2, wherein: The at least one first edge portion includes a first straight line portion and a second straight line portion, and the plurality of second edge portions include a first fold line portion and a second fold line portion, wherein: The first straight portion and the second straight portion extend along the first direction; The first folded line portion connects a first end of the first straight line portion and a first end of the second straight line portion, and the second folded line portion connects a second end of the first straight line portion and a second end of the second straight line portion; And wherein the first electrode located above the first straight portion overlaps the isolation structure, and the first electrode located above the second straight portion is spaced apart from the isolation structure; Preferably, the first electrode located above the first straight portion has the first thickness; Preferably, the first fold line portion includes a first fold line segment and a second fold line segment, wherein: The first fold line segment is connected between the second fold line segment and the first straight line portion, the second fold line segment is connected between the first fold line segment and the second straight line portion, the included angle between the first fold line segment and the first straight line portion is greater than 90 degrees, and the included angle between the second fold line segment and the second straight line portion is greater than 90 degrees; And wherein the first electrode located above the first fold line segment overlaps the isolation structure, and the first electrode located above the second fold line segment is spaced apart from the isolation structure; Preferably, the first electrode located above the first fold line segment has the second thickness; Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: The third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the second straight line portion, the included angle between the third fold line segment and the first straight line portion is greater than 90 degrees, and the included angle between the fourth fold line segment and the second straight line portion is greater than 90 degrees; And wherein, the first electrode located above the third fold line segment overlaps the isolation structure, and the first electrode located above the fourth fold line segment is spaced apart from the isolation structure; Preferably, the first electrode located above the third fold line segment has the second thickness.

4. The display panel according to claim 3, wherein: The overlapping portion comprises: A first overlapping portion, located above the first straight portion; A plurality of second overlapping portions, the plurality of second overlapping portions comprising a first overlapping section and a second overlapping section, the first overlapping section being located above the first fold line section, and the second overlapping section being located above the third fold line section; Wherein, the first overlapping portion and the plurality of second overlapping portions are an integrated structure; Preferably, the thickness of the end of the second overlapping portion away from the first overlapping portion is greater than or equal to 0 angstroms, and less than the thickness of the first overlapping portion; the thickness of the end of the second overlapping portion connected to the first overlapping portion is less than or equal to the thickness of the first overlapping portion, and greater than the thickness of the end of the second overlapping portion away from the first overlapping portion; Preferably, in a direction approaching the first overlapping portion, the thickness of the second overlapping portion gradually increases; Preferably, the thickness of the main body portion and the first overlapping portion is less than or equal to 220 angstroms; Preferably, a thickness of an end of the main body away from the first overlapping portion is smaller than a thickness of the first overlapping portion.

5. The display panel according to claim 4, wherein: Taking the end of the first fold line segment away from the first straight line portion as a starting point, the distance between the first fold line segment and the first straight line portion reduced in the second direction and the length increased in the first fold line segment in the first direction satisfy a first function, and the second direction is perpendicular to the first direction; Taking the end of the first overlapping section away from the first overlapping portion as a starting point, the distance between the first overlapping section and the first overlapping portion reduced in the second direction and the thickness increased in the first direction of the first overlapping section satisfy the first function; Preferably, Taking the end of the third fold line segment away from the first straight line portion as a starting point, the distance between the third fold line segment and the first straight line portion reduced in the second direction and the length increased in the first direction of the third fold line segment satisfy a second function; Taking the end of the second overlapping section away from the first overlapping portion as a starting point, the reduced distance between the second overlapping section and the first overlapping portion in the second direction and the increased thickness of the second overlapping section in the first direction satisfy the second function.

6. The display panel according to claim 2, wherein: The at least one first edge portion includes a first straight line portion and a second straight line portion, and the plurality of second edge portions include a first fold line portion and a second fold line portion, wherein: The first straight portion and the second straight portion extend along the first direction; The first folded line portion connects a first end of the first straight line portion and a first end of the second straight line portion, and the second folded line portion connects a second end of the first straight line portion and a second end of the second straight line portion; And wherein the first electrode located above the first straight portion and located above the second straight portion overlaps the isolation structure; Preferably, the first electrode located above the first straight portion and the first electrode located above the second straight portion has the first thickness; Preferably, the first fold line portion includes a first fold line segment and a second fold line segment, wherein: The first fold line segment is connected between the second fold line segment and the first straight line portion, the second fold line segment is connected between the first fold line segment and the second straight line portion, the included angle between the first fold line segment and the first straight line portion is greater than 90 degrees, and the included angle between the second fold line segment and the second straight line portion is greater than 90 degrees; And wherein the first electrode located above the first fold line segment and the first electrode located above the second fold line segment overlap the isolation structure; Preferably, the first electrode located above the first fold line segment and the first electrode located above the second fold line segment has the second thickness; Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: The third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the second straight line portion, the included angle between the third fold line segment and the first straight line portion is greater than 90 degrees, and the included angle between the fourth fold line segment and the second straight line portion is greater than 90 degrees; And wherein the first electrode located above the third fold line segment and the first electrode located above the fourth fold line segment overlap the isolation structure; Preferably, the first electrode located above the third fold line segment and above the fourth fold line segment has the second thickness.

7. The display panel according to claim 6, wherein: The overlapping portion comprises: A plurality of first overlapping portions, wherein the plurality of first overlapping portions include a third overlapping section and a fourth overlapping section, wherein the third overlapping section is located above the first straight portion, and the fourth overlapping section is located above the second straight portion; A plurality of second overlapping portions, the plurality of second overlapping portions comprising a first overlapping segment, a second overlapping segment, a fifth overlapping segment and a sixth overlapping segment, the first overlapping segment being located above the first fold line segment, the second overlapping segment being located above the third fold line segment, the fifth overlapping segment being located above the second fold line segment, and the sixth overlapping segment being located above the fourth fold line segment; Wherein, the plurality of first overlapping portions and the plurality of second overlapping portions are an integrated structure; Preferably, the thickness of the end of the second overlapping portion away from the first overlapping portion is greater than or equal to 0 angstroms, and less than the thickness of the first overlapping portion; the thickness of the end of the second overlapping portion connected to the first overlapping portion is less than or equal to the thickness of the first overlapping portion, and greater than the thickness of the end of the second overlapping portion away from the first overlapping portion; Preferably, in a direction approaching the first overlapping portion, the thickness of the second overlapping portion gradually increases; Preferably, the maximum thickness of the main body is less than or equal to 220 angstroms; Preferably, the maximum thickness of the first overlapping portion is less than or equal to 110 angstroms; Preferably, a thickness of an end of the main body away from the first overlapping portion is smaller than a thickness of the first overlapping portion.

8. The display panel according to claim 7, wherein: Taking the end of the second folded line segment away from the second straight line portion as a starting point, the distance between the second folded line segment and the second straight line portion reduced in the second direction and the length increased in the first direction of the second folded line segment satisfy a third function, and the second direction is perpendicular to the first direction; Taking the end of the fifth overlapping section away from the fourth overlapping section as a starting point, the reduced distance between the fifth overlapping section and the fourth overlapping section in the second direction and the increased thickness of the fifth overlapping section in the first direction satisfy the third function; Preferably, Taking the end of the fourth fold line segment away from the second straight line portion as a starting point, the distance between the fourth fold line segment and the second straight line portion reduced in the second direction and the length increased in the first direction of the fourth fold line segment satisfy a fourth function; Taking the end of the sixth overlapping section away from the fourth overlapping section as a starting point, the reduced distance between the sixth overlapping section and the fourth overlapping section in the second direction and the increased thickness of the sixth overlapping section in the first direction satisfy the fourth function.

9. The display panel according to claim 2, wherein: The at least one first edge portion includes a first straight line portion, and the plurality of second edge portions include a first fold line portion and a second fold line portion, wherein: The first straight portion extends along the first direction; The first fold line portion connects the first end of the first straight line portion and the second fold line portion, and the second fold line portion connects the second end of the first straight line portion and the first fold line portion; And wherein the first electrode located above the first straight portion overlaps the isolation structure; Preferably, the first electrode located above the first straight portion has the first thickness; Preferably, the first fold line portion includes a first fold line segment and a second fold line segment, wherein: The first fold line segment is connected between the second fold line segment and the first straight line portion, the second fold line segment is connected between the first fold line segment and the second fold line portion, and the angle between the first fold line segment and the first straight line portion is greater than 90 degrees; And wherein the first electrode located above the first fold line segment overlaps the isolation structure; Preferably, the first electrode located above the first fold line segment has the second thickness; Preferably, the second fold line portion includes a third fold line segment and a fourth fold line segment, wherein: The third fold line segment is connected between the fourth fold line segment and the first straight line portion, the fourth fold line segment is connected between the third fold line segment and the first fold line portion, and the included angle between the third fold line segment and the first straight line portion is greater than 90 degrees; And wherein, the first electrode located above the third fold line segment overlaps the isolation structure; Preferably, the first electrode located above the third fold line segment has the second thickness.

10. The display panel according to claim 9, wherein: The overlapping portion comprises: A first overlapping portion, located above the first straight portion; A plurality of second overlapping portions, the plurality of second overlapping portions comprising a first overlapping segment, a second overlapping segment, a fifth overlapping segment and a sixth overlapping segment, the first overlapping segment being located above the first fold line segment, the second overlapping segment being located above the third fold line segment, the fifth overlapping segment being located above the second fold line segment, and the sixth overlapping segment being located above the fourth fold line segment; Wherein, the first overlapping portion and the plurality of second overlapping portions are an integrated structure; Preferably, the thickness of the end of the second overlapping portion away from the first overlapping portion is greater than or equal to 0 angstroms, and less than the thickness of the first overlapping portion; the thickness of the end of the second overlapping portion connected to the first overlapping portion is less than or equal to the thickness of the first overlapping portion, and greater than the thickness of the end of the second overlapping portion away from the first overlapping portion; Preferably, in a direction approaching the first overlapping portion, the thickness of the second overlapping portion gradually increases.

11. The display panel according to claim 1, wherein: The light emitting device comprises a first light emitting device, a second light emitting device and a third light emitting device; In the first direction and the second direction, the first light emitting devices and the third light emitting devices are arranged alternately; A line connecting the centers of the two first light-emitting devices and the two third light-emitting devices forms a virtual quadrilateral, and the second light-emitting device is located in the virtual quadrilateral; Preferably, the wavelength of light emitted by the first light emitting device is greater than the wavelength of light emitted by the second light emitting device and the third light emitting device; Preferably, the wavelength of the light emitted by the second light emitting device is greater than the wavelength of the light emitted by the third light emitting device.

12. The display panel according to claim 11, wherein: The isolation opening comprises: a first opening, wherein at least a portion of the first light emitting device is located in the first opening; a second opening, wherein at least a portion of the second light emitting device is located in the second opening; a third opening, wherein at least a portion of the third light emitting device is located in the third opening; The aperture of the second opening is smaller than the apertures of the first opening and the third opening; Preferably, the size of the first opening is smaller than the aperture of the third opening.

13. The display panel according to claim 2, wherein: A contact area between the overlapping portion located above the plurality of second edge portions and the isolation structure is not greater than a contact area between the overlapping portion located above the at least one first edge portion and the isolation structure; Preferably, in a direction approaching the first edge portion, a contact area between the overlapping portion located above the plurality of second edge portions and the isolation structure gradually increases.

14. The display panel according to claim 13, wherein: The light emitting device further comprises: A second electrode is disposed between the pixel defining layer and the substrate, and at least a portion of its surface is exposed in the corresponding pixel opening; Preferably, the first electrode extends from a surface of the light-emitting functional layer away from the substrate to a side wall of the isolation structure; Preferably, the orthographic projection of the first electrode on the substrate covers the orthographic projection of the light-emitting functional layer on the substrate.

15. The display panel according to claim 2, wherein: The isolation structure also includes: An adhesive portion, disposed on a side of the support portion close to the substrate, the adhesive portion protruding from the support portion toward the isolation opening; Preferably, the materials of the bonding portion, the supporting portion and the blocking portion include metal materials; Preferably, the overlapping portion overlaps the bonding portion.

16. The display panel according to claim 1, wherein: Also includes: An encapsulation layer is provided on a side of the light emitting device away from the substrate, wherein the orthographic projection of the encapsulation layer on the substrate covers the orthographic projection of the light emitting device on the substrate; Preferably, the encapsulation layer comprises a plurality of sub-encapsulation parts, wherein the sub-encapsulation parts extend from a surface of the first electrode away from the substrate to a side of the isolation structure away from the substrate, and a gap exists between two adjacent sub-encapsulation parts; Preferably, the material of the encapsulation layer includes inorganic material.

17. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-16.

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