Display panel and display device

Abstract

The application provides a display panel and a display device. The display panel comprises a substrate, a pixel definition layer, an isolation structure and a plurality of light emitting devices. The pixel definition layer is arranged on one side of the substrate, and 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 portions intersect the first edge portion. The isolation structure is arranged on one side of the substrate and surrounds a plurality of isolation openings. The light emitting device comprises a first electrode, and at least part of the first electrode is located in the 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. The second thickness is not greater than the first thickness. In the application, the overlapping yield of the first electrode is improved by changing the structure of the first electrode.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) are organic thin-film electroluminescent devices. They have attracted great attention and are widely used in electronic display products due to their advantages such as low power consumption, high brightness, wide viewing angle, high contrast, and the ability to realize flexible displays.

[0003] However, the performance of current display panels needs improvement. Summary of the Invention

[0004] The purpose of this invention is to provide a display panel and display device to improve the performance of existing display panels.

[0005] To achieve the above objectives, the present invention provides a display panel comprising a substrate, a pixel defining layer, an isolation structure, and a plurality of light-emitting devices. The pixel defining layer is disposed on one side of the substrate and includes a plurality of pixel openings. The edges of each pixel opening include 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 portions intersect with the first edge portions. The isolation structure is disposed on one side of the substrate and encloses a plurality of isolation openings, communicating with corresponding pixel openings. Each light-emitting device includes a light-emitting functional layer and a first electrode sequentially stacked along a direction away from the substrate. At least a portion of the first electrode is located within a 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, wherein 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 with 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 with 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. The overlapping portion located above 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 support portion and an isolation portion. The support portion is disposed on one side of the substrate. The isolation portion is disposed on the side of the support portion away from the substrate, and the isolation portion protrudes from the support portion toward the isolation opening. 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 zigzag portion and a second zigzag portion, wherein: the first straight portion and the second straight portion extend along the first direction; the first zigzag portion connects a first end of the first straight portion and a first end of the second straight portion, and the second zigzag portion connects a second end of the first straight portion and a second end of the second straight portion; and wherein the first electrode located above the first straight portion overlaps with 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 zigzag portion includes a first zigzag segment and a second zigzag segment, wherein: the first zigzag segment connects the second zigzag segment and the first straight portion, the second zigzag segment connects the first zigzag segment and the second straight portion, the angle between the first zigzag segment and the first straight portion is greater than 90 degrees, and the angle between the second zigzag segment and the second straight portion is greater than 90 degrees; and wherein the first electrode located above the first zigzag segment overlaps with the isolation structure, and the first electrode located above the second zigzag segment is spaced apart from the isolation structure. Preferably, the first electrode located above the first zigzag segment has the second thickness. Preferably, the second zigzag portion includes a third zigzag segment and a fourth zigzag segment, wherein: the third zigzag segment connects the fourth zigzag segment and the first straight segment, the fourth zigzag segment connects the third zigzag segment and the second straight segment, the angle between the third zigzag segment and the first straight segment is greater than 90 degrees, and the angle between the fourth zigzag segment and the second straight segment is greater than 90 degrees; and wherein the first electrode located above the third zigzag segment overlaps with the isolation structure, and the first electrode located above the fourth zigzag segment is spaced apart from the isolation structure. Preferably, the first electrode located above the third zigzag segment has the second thickness.

[0008] 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 segment and a second overlapping segment, the first overlapping segment being located above the first broken line segment, and the second overlapping segment being located above the third broken line segment. The first overlapping portion and the plurality of second overlapping portions are an integral 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 approaching the first overlapping portion. Preferably, the thickness of the main body portion and the first overlapping portion is less than or equal to 220 angstroms. Preferably, the thickness of the end of the main body portion away from the first overlapping portion is less than the thickness of the first overlapping portion.

[0009] Furthermore, taking the end of the first broken line segment away from the first straight line portion as the starting point, the decrease in distance between the first broken line segment and the first straight line portion in the second direction, and the increase in length of the first broken line segment in the first direction, satisfy a first function, where the second direction is perpendicular to the first direction. Taking the end of the first overlapping segment away from the first overlapping portion as the starting point, the decrease in distance between the first overlapping segment and the first overlapping portion in the second direction, and the increase in thickness of the first overlapping segment in the first direction, satisfy the first function. Preferably, taking the end of the third broken line segment away from the first straight line portion as the starting point, the decrease in distance between the third broken line segment and the first straight line portion in the second direction, and the increase in length of the third broken line segment in the first direction, satisfy a second function. Taking the end of the second overlapping segment away from the first overlapping portion as the starting point, the decrease in distance between the second overlapping segment and the first overlapping portion in the second direction, and the increase in thickness of the second overlapping segment 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 zigzag portion and a second zigzag portion, wherein: the first straight portion and the second straight portion extend along the first direction; the first zigzag portion connects a first end of the first straight portion and a first end of the second straight portion, and the second zigzag portion connects a second end of the first straight portion and a 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 with 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 zigzag portion includes a first zigzag segment and a second zigzag segment, wherein: the first zigzag segment connects the second zigzag segment and the first straight portion, the second zigzag segment connects the first zigzag segment and the second straight portion, the angle between the first zigzag segment and the first straight portion is greater than 90 degrees, and the angle between the second zigzag segment and the second straight portion is greater than 90 degrees; and wherein the first electrode located above the first zigzag segment and above the second zigzag segment overlaps with the isolation structure. Preferably, the first electrode located above the first folded segment and the second folded segment has the second thickness. Preferably, the second folded portion includes a third folded segment and a fourth folded segment, wherein: the third folded segment connects the fourth folded segment and the first straight segment, the fourth folded segment connects the third folded segment and the second straight segment, the angle between the third folded segment and the first straight segment is greater than 90 degrees, and the angle between the fourth folded segment and the second straight segment is greater than 90 degrees; and wherein the first electrode located above the third folded segment and the fourth folded segment overlaps with the isolation structure; preferably, the first electrode located above the third folded segment and the fourth folded segment has the second thickness.

[0011] Further, the overlapping portion includes: a plurality of first overlapping portions, each first overlapping portion including a third overlapping segment and a fourth overlapping segment, the third overlapping segment being located above the first straight portion, and the fourth overlapping segment being located above the second straight portion. A plurality of second overlapping portions, each second overlapping portion including 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 broken line segment, the second overlapping segment being located above the third broken line segment, the fifth overlapping segment being located above the second broken line segment, and the sixth overlapping segment being located above the fourth broken line segment. The plurality of first overlapping portions and the plurality of second overlapping portions are an integral 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 approaching the first overlapping portion. Preferably, the maximum thickness of the main body portion 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 the end of the main body portion away from the first overlapping portion is less than the thickness of the first overlapping portion.

[0012] Further, taking the end of the second broken line segment away from the second straight line portion as the starting point, the decrease in distance between the second broken line segment and the second straight line portion in the second direction, and the increase in length of the second broken line segment in the first direction, satisfy a third function, where the second direction is perpendicular to the first direction. Taking the end of the fifth overlapping segment away from the fourth overlapping segment as the starting point, the decrease in distance between the fifth overlapping segment and the fourth overlapping segment in the second direction, and the increase in thickness of the fifth overlapping segment in the first direction, satisfy the third function. Preferably, taking the end of the fourth broken line segment away from the second straight line portion as the starting point, the decrease in distance between the fourth broken line segment and the second straight line portion in the second direction, and the increase in length of the fourth broken line segment in the first direction, satisfy a fourth function. Taking the end of the sixth overlapping segment away from the fourth overlapping segment as the starting point, the decrease in distance between the sixth overlapping segment and the fourth overlapping segment in the second direction, and the increase in 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 line portion, and the plurality of second edge portions include a first zigzag portion and a second zigzag portion, wherein: the first straight line portion extends along the first direction; the first zigzag portion connects a first end of the first straight line portion and the second zigzag portion, and the second zigzag portion connects a second end of the first straight line portion and the first zigzag portion; and wherein the first electrode located above the first straight line portion overlaps with the isolation structure. Preferably, the first electrode located above the first straight line portion has the first thickness. Preferably, the first zigzag portion includes a first zigzag segment and a second zigzag segment, wherein: the first zigzag segment connects the second zigzag segment and the first straight line portion, the second zigzag segment connects the first zigzag segment and the second zigzag portion, and the included angle between the first zigzag segment and the first straight line portion is greater than 90 degrees; and wherein the first electrode located above the first zigzag segment overlaps with the isolation structure. Preferably, the first electrode located above the first zigzag segment has the second thickness. Preferably, the second zigzag portion includes a third zigzag segment and a fourth zigzag segment, wherein: the third zigzag segment connects the fourth zigzag segment and the first straight segment, the fourth zigzag segment connects the third zigzag segment and the first zigzag portion, and the included angle between the third zigzag segment and the first straight segment is greater than 90 degrees; and wherein the first electrode located above the third zigzag segment overlaps with the isolation structure. Preferably, the first electrode located above the third zigzag 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 segment, a second overlapping segment, a fifth overlapping segment, and a sixth overlapping segment. The first overlapping segment is located above the first broken line segment, the second overlapping segment is located above the third broken line segment, the fifth overlapping segment is located above the second broken line segment, and the sixth overlapping segment is located above the fourth broken line segment. The first overlapping portion and the plurality of second overlapping portions are an integral 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 approaching 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 connecting two of the first light-emitting devices and two of the third light-emitting devices forms a virtual quadrilateral, and the second light-emitting device is located within 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] Furthermore, the contact area between the overlapping portion located above the plurality of second edge portions and the isolation structure is not greater than the contact area between the overlapping portion located above the at least one first edge portion and the isolation structure. Preferably, in the direction close to the first edge portion, the contact area between the overlapping portion located above the plurality of second edge portions and the isolation structure gradually increases.

[0018] Furthermore, the light-emitting device further includes a second electrode disposed between the pixel defining layer and the substrate, with at least a portion of its surface exposed in the corresponding pixel opening. Preferably, the first electrode extends from the surface of the light-emitting functional layer opposite to the substrate to the sidewall of the isolation structure. Preferably, the orthographic projection of the first electrode on the substrate overlaps the orthographic projection of the light-emitting functional layer on the substrate.

[0019] Furthermore, the isolation structure also includes an adhesive portion disposed on the side of the support portion near the substrate, the adhesive portion protruding from the support portion toward the isolation opening. Preferably, the adhesive portion, the support portion, and the barrier portion are made of a metallic material. Preferably, the overlapping portion overlaps with the adhesive portion.

[0020] Furthermore, the display panel further includes an encapsulation layer disposed on the side of the light-emitting device facing 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 includes a plurality of sub-encapsulation portions extending from the surface of the first electrode facing away from the substrate to the side of the isolation structure facing away from the substrate, and a gap is present between adjacent sub-encapsulation portions. Preferably, the material of the encapsulation layer includes an inorganic material.

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

[0022] The advantages of the present invention are: the display panel and display device of the present invention improve the bonding yield between the first electrode and the isolation structure by changing the bonding structure of the first electrode of the light-emitting device, thereby improving the yield of the display panel. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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 effort.

[0024] Figure 1 This is a schematic diagram of the partitioning of the display panel in an embodiment of the present invention;

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

[0026] Figure 3 This is a schematic diagram of the layered structure of the single-sided overlapping type light-emitting device in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the planar structure of the single-sided overlapping first electrode and the corresponding pixel opening in an embodiment of the present invention;

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

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

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

[0031] Figure 8This is a schematic diagram of the vapor deposition of the single-sided overlapping first electrode in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the vapor deposition of a double-sided overlapping first electrode in another embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the planar structure of a pixel opening with a single cut edge in another embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of the distribution structure of the isolation openings in another embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the function graphs of the first and second functions in an embodiment of the present invention;

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

[0037] The components in the diagram are shown below:

[0038] Display panel 1; Display area AA;

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

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

[0041] First edge portion 211; First straight portion 2111;

[0042] Second straight section 2112; Second edge section 212;

[0043] First broken line section 2121; First broken line segment 21211;

[0044] Second broken line segment 21212; Second broken line section 2122;

[0045] The third broken line segment is 21221; the fourth broken line segment is 21222;

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

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

[0048] Third lap joint 3121; Fourth lap joint 3122;

[0049] Second lap joint 313; First lap joint 3131;

[0050] Second lap joint 3132; Fifth lap joint 3133;

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

[0052] First electrode 33; First light-emitting device 30R;

[0053] Second light-emitting device 30G; Third light-emitting device 30B;

[0054] Isolation structure 40; Support part 41;

[0055] 42. Isolation section; 43. Isolation opening;

[0056] Adhesive part 44;

[0057] First opening: 43R; Second opening: 43G;

[0058] Third opening 43B; Encapsulation layer 50;

[0059] Sub-encapsulation section 51; Nozzle 2. Detailed Implementation

[0060] The following description, with reference to the accompanying drawings, illustrates preferred embodiments of the present invention, demonstrating its implementability. These embodiments provide a complete overview of the invention for those skilled in the art, making its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0061] An embodiment of the present invention proposes a display panel 1, such as... Figure 3As shown, the display panel 1 also includes a substrate 10, an isolation structure 40, and light-emitting devices 30. The substrate 10 drives the light-emitting devices 30. The isolation structure 40 is disposed on one side of the substrate 10 and encloses multiple isolation openings 43, which block vapor-deposited materials and disconnect the vapor-deposited materials in adjacent isolation openings 43, thereby isolating different light-emitting devices 30. At least a portion of the light-emitting device 30 is disposed within a corresponding isolation opening 43, and the light-emitting device 30, as an independent light-emitting unit, can be lit or turned off according to a corresponding display signal under the drive of the substrate 10. The light-emitting device 30 is provided with a first electrode 33, which can obtain a VSS power signal by being electrically connected to the isolation structure 40. (The composition and preparation of the isolation structure 40 mentioned below are specified in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072.) Further descriptions can be found in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0062] Specifically, such as Figure 1 As shown, 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. Multiple light-emitting devices 30 are provided in the display area AA, each emitting light independently to form a display image in the display area AA. The non-display area NA is provided with a driving device and multiple signal lines. One end of each signal line is electrically connected to the driving device, and the other end extends into the display area AA and is electrically connected to the light-emitting device 30 located in the display area AA. The driving device can be a flexible printed circuit (FPC), a driver chip (IC), or other electronic devices. The driving device can send display signals to the display area AA through the signal lines according to display requirements, and the display area AA can then light up the corresponding light-emitting device 30 according to the display signal, thereby realizing the control of the display screen.

[0063] like Figure 3As shown, substrate 10 is an array substrate, comprising an array of thin-film transistors and signal traces. 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 bonded to substrate 10 in the non-display area NA using COF (Chip On Film) or FOP (Flexible Printed Circuit Board On Panel) technology, electrically connecting the driving device to one end of the signal trace. The signal trace 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 display signals to the corresponding thin-film transistors through the signal traces. The thin-film transistors turn on the corresponding light-emitting device 30 according to the display signal, thereby causing the light-emitting device 30 at the corresponding position to emit light, thus forming an image. At the same time, the driving chip can also realize the change of the display image by sending different display signals.

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

[0065] like Figure 1 and Figure 2As shown, the display panel 1 has multiple 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. The wavelength of light emitted by the first light-emitting device 30R is longer than that emitted by the second light-emitting device 30G and the third light-emitting device 30B, and the wavelength of light emitted by the second light-emitting device 30G is longer than that emitted by the third light-emitting device 30B. For example, the first light-emitting device 30R can emit red light, the second light-emitting device 30G can emit green light, and the third light-emitting device 30B can emit blue light. By uniformly distributing these light-emitting devices 30 capable of emitting different colors of light, color image display can be achieved. Specifically, in the second direction X and the first direction Y, which are parallel to the plane 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. The center line connecting two first light-emitting devices 30R and two third light-emitting devices 30B forms a virtual quadrilateral, and the second light-emitting device 30G is located within this virtual quadrilateral. Furthermore, the pixel opening 21 with the first light-emitting device 30R is smaller than the pixel opening 21 with the second light-emitting device 30G, and the pixel opening 21 with the second light-emitting device 30G is smaller than the pixel opening 21 with the third light-emitting device 30B, thereby ensuring that the luminous efficiency and lifespan of the light-emitting devices 30 of different colors are similar.

[0066] like Figure 3 As shown, the display panel 1 also 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 has a plurality of pixel openings 21 that 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 functional 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 opposite to the substrate 10.

[0067] Specifically, such as Figure 4As shown, 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 of the invention, the pixel opening 21 has a first edge portion 211 extending along a first direction Y, and the second edge portions 212 intersect with the first edge portion 211. The first edge portion 211 includes a first straight line portion 2111 and a second straight line portion 2112, and the second edge portion 212 includes a first broken line portion 2121 and a second broken line portion 2122. The first straight line portion 2111 and the second straight line portion 2112 extend along the first direction Y. The first broken line portion 2121 connects the first end of the first straight line portion 2111 and the first end of the second straight line portion 2112, and the second broken line portion 2122 connects the second end of the first straight line portion 2111 and the second end of the second straight line portion 2112, thereby forming a pixel opening 21 that is closed on all four sides.

[0068] like Figure 3 As shown, the isolation structure 40 is disposed on the side of the pixel limiting layer 20 facing away from the substrate 10. It includes a support portion 41, an isolation portion 42, and an isolation opening 43. The support portion 41 is disposed on the side of the pixel limiting layer 20 facing away from the substrate 10, and the isolation portion 42 is stacked on the side of the support portion 41 facing away from the substrate 10. The isolation opening 43 penetrates the support portion 41 and the isolation portion 42 and communicates with the corresponding pixel opening 21, allowing a portion of the material in the light-emitting device 30 to be deposited in the pixel opening 21. Both the support portion 41 and the isolation portion 42 are made of metal, 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 sidewall of the support portion 41 facing the isolation opening 43. Figure 2 and Figure 3 As shown, corresponding to 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, and at least a portion of the third light-emitting device is located in the third opening 43B. 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. The orthographic projection of the isolation opening 43 onto the substrate 10 is a polygon, and in the first direction Y, the widths at both ends of the isolation opening 43 are smaller than the width at its middle position. In other embodiments of the present invention, the isolation opening 43 may also be as follows: Figure 5 The quadrilateral shown is, for example, at least one of a right-angled quadrilateral, a rounded quadrilateral, or a chamfered quadrilateral; the isolation opening 43 of the quadrilateral has two mutually perpendicular diagonals, which are parallel to the second direction X and the first direction Y, respectively.

[0069] Furthermore, the isolation structure 40 also includes an adhesive portion 44, which is disposed on the side of the support portion 41 near 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 metallic material.

[0070] like Figure 3 As shown, the orthographic projection of the light-emitting functional layer 32 of the light-emitting device 30 onto the substrate 10 does not overlap with the orthographic projection of the support portion 41 onto 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 sidewall of the support portion 41 facing the isolation opening 43 (this sidewall is also the sidewall of the isolation opening 43), and is electrically connected to the support portion 41, thereby forming a single-sided overlapping type first electrode 33, which 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 with 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, the second thickness being no greater than the first thickness. For example... Figure 4 As shown, the first electrode 33 includes a main body 311 and an overlapping portion. The orthographic projection of the main body 311 onto the substrate 10 is outside the orthographic projection range of the isolation structure 40 onto the substrate 10, and the orthographic projection of the main body 311 onto the substrate 10 is outside the orthographic projection range of the isolation portion 42 onto the substrate 10. The overlapping portion is connected to the main body 311 and overlaps with the isolation structure 40. The orthographic projection of the overlapping portion onto the substrate 10 is within the orthographic projection range of the isolation structure 40 onto the substrate 10, and the orthographic projection of the overlapping portion onto the substrate 10 is within the orthographic projection range of the isolation portion 42 onto 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. 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] Furthermore, in the display panel 1 provided in this embodiment of the invention, the light-emitting device 30 included therein is a single-sided overlapping type light-emitting device, that is, the first electrode 33 of the light-emitting device 30 is only overlapped with the isolation structure 40 on one side of its two sides in the second direction X to achieve electrical connection. The specific form of the first electrode 33 of the single-sided overlapping type light-emitting device 30 and the corresponding pixel opening 21 is as follows:

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

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

[0075] The second broken line portion 2122 includes a third broken line segment 21221 and a fourth broken line segment 21222. The third broken line segment 21221 connects the fourth broken line segment 21222 and the first straight line portion 2111. The fourth broken line segment 21222 connects the third broken line segment 21221 and the second straight line portion 2112. The angle between the third broken line segment 21221 and the first straight line portion 2111 is greater than 90 degrees, and the angle between the fourth broken line segment 21222 and the second straight line portion 2112 is greater than 90 degrees. The first electrode 33 located above the third broken line segment 21221 overlaps with the isolation structure 40, the first electrode 33 located above the fourth broken line segment 21222 is spaced from the isolation structure 40, and the first electrode 33 located above the third broken 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 can be an integral structure, thereby forming an integral overlapping portion. The first overlapping portion 312 is located above the first straight portion 2111. The second overlapping portion 313 includes a first overlapping segment 3131 and a second overlapping segment 3132, the first overlapping segment 3131 being located above the first broken line segment 21211, and the second overlapping segment 3132 being located above the third broken line segment 21221.

[0077] (The "above" mentioned above does not refer to directly above, but rather describes the relative positions of the various parts of the first electrode 33.)

[0078] The maximum thickness of the main body 311 can be between 120 and 220 angstroms, and the thickness of the end of the main body 311 away from the first overlapping portion 312 can be less than the thickness of the first overlapping portion 312. The thickness of the first overlapping portion 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 overlapping portion 312 can be 150 angstroms. The thickness of the end of the second overlapping portion 313 away from the first overlapping portion 312 is greater than or equal to 0 angstroms and less than the thickness of the first overlapping portion 312. The thickness of the end of the second overlapping portion 313 connected to the first overlapping portion 312 is less than or equal to the thickness of the first overlapping portion 312 and greater than the thickness of its end away from the first overlapping portion 312. Preferably, as the distance 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 thickness of the second overlap portion 313 gradually increases from 0 angstroms to the same or similar thickness as the first overlap portion 312 (e.g., less than or equal to 150 angstroms). Moreover, the function graph of the gradually increasing thickness of the second overlap portion 313 is consistent with the graph of the arc shape function of the first arc and the second arc, so that the thickness at both ends of the first electrode 33 is less than the thickness at the middle position of the first electrode 33, thereby improving the effective overlap rate of the first electrode 33.

[0079] Furthermore, taking the end of the first broken line segment 21211 away from the first straight line portion 2111 as the starting point, the decrease in distance between the first broken line segment 21211 and the first straight line portion 2111 in the second direction X, and the increase in length of the first broken line segment 21211 in the first direction Y, satisfy a first function. Taking the end of the first overlapping segment 3131 away from the first overlapping portion 312 as the starting point, the decrease in distance between the first overlapping segment 3131 and the first overlapping portion 312 in the second direction X, and the increase in thickness of the first overlapping segment 3131 in the first direction Y, satisfy a first function. Taking the end of the third broken line segment 21221 away from the first straight line portion 2111 as the starting point, the decrease in distance between the third broken line segment 21221 and the first straight line portion 2111 in the second direction X, and the increase in length of the third broken line segment 21221 in the first direction Y, satisfy a second function. Starting from the end of the second overlapping segment 3132 furthest from the first overlapping portion 312, the decrease in distance between the second overlapping segment 3132 and the first overlapping portion 312 in the second direction X, and the increase in thickness of the second overlapping segment 3132 in the first direction Y, satisfy a second function. (The graphs of the first and second functions are shown in the figure.) Figure 12 (as shown)

[0080] Furthermore, in another embodiment of the present invention, the display panel 1 includes a light-emitting device 30 that can also be a double-sided overlapping light-emitting device, i.e.: Figure 6As shown, the first electrode 33 of the light-emitting device 30 is electrically connected to the isolation structure 40 on both sides in the second direction X. Figure 7 As shown, the specific form of the first electrode 33 and the corresponding pixel opening 21 of the double-sided overlapping light-emitting device 30 is as follows:

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

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

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

[0084] The overlapping portion includes multiple first overlapping portions 312 and multiple second overlapping portions 313, and the first overlapping portions 312 and the second overlapping portions 313 can be an integral structure, thereby forming an integral overlapping portion. The multiple first overlapping portions 312 include a third overlapping segment 3121 and a fourth overlapping segment 3122, where the third overlapping segment 3121 is located above the first straight section 2111, and the fourth overlapping segment 3122 is located above the second straight section 2112. The multiple second overlapping portions 313 include a first overlapping segment 3131, a second overlapping segment 3132, a fifth overlapping segment 3133, and a sixth overlapping segment 3134, where the first overlapping segment 3131 is located above the first broken line segment 21211, the second overlapping segment 3132 is located above the third broken line segment 21221, the fifth overlapping segment 3133 is located above the second broken line segment 21212, and the sixth overlapping segment 3134 is located above the fourth broken line segment 21222.

[0085] In this embodiment, the thickness of the main body 311 can be greater than the thickness of the first overlapping portion 312. Preferably, due to limitations of the vapor deposition process, the thickness of the main body 311 ranges from 120 to 220 angstroms, and the thickness of the first overlapping portion 312 ranges from 60 to 110 angstroms. For example, the thickness of the main body 311 can be 150 angstroms, and the thickness of the first overlapping portion 312 is less than or equal to 75 angstroms. The thickness of the end of the second overlapping portion 313 away from the first overlapping portion 312 is greater than or equal to 0 angstroms and less than the thickness of the first overlapping portion 312, while the thickness of the end connected to the first overlapping portion 312 is less than or equal to the thickness of the first overlapping portion 312 and greater than the thickness of the end away from the first overlapping portion 312. Preferably, as the distance 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 thickness of the second overlap portion 313 gradually increases from 0 angstroms to the same or similar thickness as the first overlap portion 312 (e.g., less than or equal to 75 angstroms). Furthermore, the function graph of the gradually increasing thickness of the second overlap portion 313 is consistent with the graph of the arc shape function of the first and second arcs, 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. Simultaneously, the double-sided overlap type of the first electrode can also prevent excessive etching of the pixel-defining layer during subsequent film layer fabrication processes, thus preventing defects such as cracks and grooves from forming on the surface of the pixel-defining layer.

[0086] Furthermore, taking the end of the second broken line segment 21212 away from the second straight line portion 2112 as the starting point, the decrease in distance between the second broken line segment 21212 and the second straight line portion 2112 in the second direction X, and the increase in length of the second broken line segment 21212 in the first direction Y, satisfy the third function, where the second direction X is perpendicular to the first direction Y. Taking the end of the fifth overlapping segment 3133 away from the fourth overlapping segment 3122 as the starting point, the decrease in distance between the fifth overlapping segment 3133 and the fourth overlapping segment 3122 in the second direction X, and the increase in thickness of the fifth overlapping segment 3133 in the first direction Y, satisfy the third function. Specifically, taking the end of the fourth broken line segment 21222 away from the second straight line portion 2112 as the starting point, the decrease in distance between the fourth broken line segment 21222 and the second straight line portion 2112 in the second direction X, and the increase in length of the fourth broken line segment 21222 in the first direction Y, satisfy the fourth function. Starting from the end of the sixth overlapping segment 3134 furthest from the fourth overlapping segment 3122, the decrease in distance between the sixth overlapping segment 3134 and the fourth overlapping segment 3122 in the second direction X, and the increase in thickness of the sixth overlapping segment 3134 in the first direction Y, satisfy the fourth function. (The third and fourth functions are as follows...) Figure 13 (as shown)

[0087] Furthermore, in other embodiments of the present invention, single-sided overlapping first electrodes and double-sided overlapping first electrodes can be arbitrarily combined according to actual needs. For example, all light-emitting devices can be equipped with single-sided overlapping first electrodes, or all light-emitting devices can be equipped with double-sided overlapping first electrodes, or some light-emitting devices can be equipped with single-sided overlapping first electrodes, and the remaining light-emitting devices can be equipped with double-sided overlapping first electrodes. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0088] Furthermore, the contact area between the overlapping portions above the plurality of second edge portions 212 and the isolation structure 40 is not greater than the contact area between the overlapping portions above at least one first edge portion 211 and the isolation structure 40, that is, the contact area between the second overlapping portion 313 and the isolation structure 40 is not greater than the contact area between the first overlapping portion 312 and the isolation structure 40. Preferably, the contact area between the second overlapping portion 313 and the isolation structure 40 is smaller than the contact area between the first overlapping portion 312 and the isolation structure 40. Moreover, in the direction near the first edge portion 211, the contact area between the overlapping portions above the plurality of second edge portions 212 and the isolation structure 40 gradually increases, that is, the contact area between the second overlapping portion 313 and the isolation structure 40 gradually increases in the direction near the first overlapping 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. This allows the isolation portion 42 to completely block the support portion 41, preventing the material of the light-emitting functional layer 32 from being deposited onto the support portion 41 during fabrication. During the fabrication of the first electrode 33, the deposition angle of the first electrode 33 material can be adjusted to ensure that the coverage area of ​​the first electrode 33 is larger than the coverage area of ​​the light-emitting functional layer 32. This allows the first electrode 33 to extend from the surface of the light-emitting functional layer 32 away from the substrate 10 to the sidewall of the support portion 41 facing the isolation opening 43, facilitating the overlap between the first electrode 33 and the support portion 41. Specifically, when fabricating a light-emitting device 30 with a single-sided overlap of the first electrode 33, as follows... Figure 8 As shown, in the vapor deposition apparatus for fabricating the first electrode 33, the nozzles 2 can be tilted omnidirectionally toward the first straight section 2111 of the pixel opening 21, causing all nozzles 2 to face the sidewall of the support portion 41 corresponding to the first straight section 2111, thereby allowing the material ejected by the nozzles 2 to be deposited on the sidewall of the support portion 41 corresponding to the first straight section 2111. When fabricating a light-emitting device 30 with a double-sided overlap of the first electrode 33, as... Figure 9 As shown, the nozzle 2 in the vapor deposition apparatus for preparing the first electrode 33 can be partially tilted toward the first straight section 2111 side of the pixel opening 21 and partially tilted toward the second straight section 2112 side, causing part of the nozzle 2 to face the sidewall of the support section 41 corresponding to the first straight section 2111 and part of the nozzle 2 to face the sidewall of the support section 41 corresponding to the second straight section 2112, so that the material ejected by the nozzle 2 can be deposited on the sidewall of the support section 41 corresponding to the first straight section 2111 and the second straight section 21122.

[0090] An encapsulation layer 50 is disposed on the side of the light-emitting device 30 facing 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 portions 51, with at least one sub-encapsulation portion 51 disposed in each isolation opening 43. Specifically, the sub-encapsulation portion 51 extends from the surface of the first electrode 33 facing away from the substrate 10 to the side of the isolation structure 40 facing 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 fabricated using a chemical vapor deposition (CVD) process.

[0091] Furthermore, in the display panel 1 provided in this embodiment of the invention, the pixel opening 21 is a double-cut-edge (double-straight-edge) shaped structure with a first straight portion 2111 and a second straight portion 2112 disposed opposite to each other. However, in another embodiment of the invention, the pixel opening 21 can also be a single-cut-edge (straight-edge) shaped structure, and the first electrode 33 of the light-emitting device 30 disposed in the pixel opening 21 can also be a single-sided overlapping type. Figure 10 As shown, the specific forms of the single-sided pixel opening 21 and the corresponding first electrode 33 are as follows:

[0092] The pixel opening 21 has 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 extending along a first direction Y, and the second edge portions 212 intersect with the first edge portion 211. The first edge portion 211 includes a first straight line portion 2111, and the second edge portion 212 includes a first broken line portion 2121 and a second broken line portion 2122. The first straight line portion 2111 extends along the first direction Y, the two ends of the first broken line portion 2121 are respectively connected to the first end of the first straight line portion 2111 and the second broken line portion 2122, and the two ends of the second broken line portion 2122 are respectively connected to the second end of the first straight line portion 2111 and the first broken line portion 2121, thereby forming a pixel opening 21 with a closed polygonal shape.

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

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

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

[0096] Furthermore, 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 integral structure. The first overlapping portion 312 is located above the first straight portion 2111. The second overlapping portion 313 includes a first overlapping segment 3131, a second overlapping segment 3132, a fifth overlapping segment 3133, and a sixth overlapping segment 3134. The first overlapping segment 3131 is located above the first broken line segment 21211, the second overlapping segment 3132 is located above the third broken line segment 21221, the fifth overlapping segment 3133 is located above the second broken line segment 21212, and the sixth overlapping segment 3134 is located above the fourth broken line segment 21222. Specifically, the thickness of the end of the second overlap 313 furthest from the first overlap 312 is greater than or equal to 0 angstroms and less than the thickness of the first overlap 312; the thickness of the end of the second overlap 313 connected to the first overlap 312 is less than or equal to the thickness of the first overlap 312 and greater than the thickness of the end of the second overlap 313 furthest from the first overlap 312. Furthermore, the thickness of the second overlap 313 gradually increases in the direction close to the first overlap 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, such as Figure 11 As shown in the illustration, in this embodiment, the isolation opening 43 in the display panel 1 can also be formed with a similar opening shape to the structure of the pixel opening 21 described above. Furthermore, 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 in the aforementioned display panel, and therefore will not be elaborated upon here. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

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

[0099] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A display panel, characterized in that, include: substrate; A pixel defining layer is disposed on one side of the substrate. The pixel defining layer includes a plurality of pixel openings. The edge of each 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. The second edge portions intersect with the first edge portions. The at least one first edge portion includes a first straight line portion extending along the first direction. The second edge portion includes a first zigzag line portion. The first zigzag line portion includes a first zigzag line segment. The angle between the first zigzag line segment and the first straight line portion is greater than 90 degrees. An isolation structure is disposed on one side of the substrate, the isolation structure enclosing and forming a plurality of isolation openings, and the isolation structure communicating with the corresponding pixel openings; Multiple light-emitting devices, each light-emitting device including a light-emitting functional layer and a first electrode stacked sequentially along a direction away from the substrate, at least a portion of the first electrode being located in a corresponding isolation opening, and the first electrode located above the first folded segment overlapping the isolation structure; 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 edges portion has a second thickness, wherein the second thickness is not greater than the first thickness.

2. The display panel as described in claim 1, characterized in that, The first electrode, located above the plurality of second edges and overlapping the isolation structure, has the second thickness.

3. The display panel as described in claim 1, characterized in that, The first electrode includes: The main body portion, wherein the orthographic projection of the main body portion on the substrate is located outside the orthographic projection range of the isolation structure on the substrate; The overlapping portion is connected to the main body and overlaps with the isolation structure, and the orthographic projection of the overlapping portion on the substrate is located within the orthographic projection range 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.

4. The display panel as described in claim 3, characterized in that, The isolation structure includes: A support portion is provided on one side of the substrate; An isolation portion is provided on the side of the support portion away from the substrate, and the isolation portion protrudes from the support portion toward the isolation opening; Wherein, the orthographic projection of the main body on the substrate is outside the orthographic projection range of the isolation part on the substrate, and the orthographic projection of the overlapping part on the substrate is within the orthographic projection range of the isolation part on the substrate.

5. The display panel as described in claim 3, characterized in that, The first edge portion includes a second straight line portion, and a plurality of second edge portions include second broken line portions, wherein: The first straight portion and the second straight portion extend along the first direction; The first broken line portion connects the first end of the first straight line portion and the first end of the second straight line portion, and the second broken line portion connects the second end of the first straight line portion and the second end of the second straight line portion; Furthermore, the first electrode located above the first straight section overlaps with the isolation structure, and the first electrode located above the second straight section is spaced apart from the isolation structure; The first electrode located above the first straight portion has the first thickness.

6. The display panel as described in claim 5, characterized in that, The first broken line portion includes a second broken line segment, wherein: the first broken line segment connects the second broken line segment and the first straight line portion, the second broken line segment connects the first broken line segment and the second straight line portion, and the included angle between the second broken line segment and the second straight line portion is greater than 90 degrees; Furthermore, the first electrode located above the second broken line segment is spaced apart from the isolation structure; the first electrode located above the first broken line segment has the second thickness.

7. The display panel as described in claim 6, characterized in that, The second broken line portion includes a third broken line segment and a fourth broken line segment, wherein: the third broken line segment connects the fourth broken line segment and the first straight line portion, the fourth broken line segment connects the third broken line segment and the second straight line portion, the angle between the third broken line segment and the first straight line portion is greater than 90 degrees, and the angle between the fourth broken line segment and the second straight line portion is greater than 90 degrees; Furthermore, the first electrode located above the third broken line segment overlaps with the isolation structure, while the first electrode located above the fourth broken line segment is spaced apart from the isolation structure.

8. The display panel as described in claim 7, characterized in that, The first electrode located above the third broken line segment has the second thickness.

9. The display panel as described in claim 5, characterized in that, The overlapping portion includes: The first overlapping portion is located above the first straight portion; Multiple second overlapping portions, the multiple second overlapping portions including a first overlapping segment and a second overlapping segment, the first overlapping segment being located above the first zigzag segment, and the second overlapping segment being located above the third zigzag segment; The first overlapping portion and the plurality of second overlapping portions are an integral structure.

10. The display panel as claimed in claim 9, characterized in that, The thickness of the end of the second overlap away from the first overlap is greater than or equal to 0 angstroms and less than the thickness of the first overlap; the thickness of the end of the second overlap connected to the first overlap is less than or equal to the thickness of the first overlap and greater than the thickness of the end of the second overlap away from the first overlap. The thickness of the second overlap gradually increases in the direction close to the first overlap.

11. The display panel as claimed in claim 9, characterized in that, The thickness of the main body and the first overlapping portion is less than or equal to 220 angstroms; The thickness of the end of the main body away from the first overlapping portion is less than the thickness of the first overlapping portion.

12. The display panel as claimed in claim 9, characterized in that, Taking the end of the first broken line segment away from the first straight line portion as the starting point, the decrease in distance between the first broken line segment and the first straight line portion in the second direction and the increase in length of the first broken line segment in the first direction satisfy a first function, wherein the second direction is perpendicular to the first direction; Starting from the end of the first overlapping segment that is farthest from the first overlapping portion, the decrease in distance between the first overlapping segment and the first overlapping portion in the second direction and the increase in thickness of the first overlapping segment in the first direction satisfy the first function; Taking the end of the third broken line segment away from the first straight line portion as the starting point, the decrease in distance between the third broken line segment and the first straight line portion in the second direction, and the increase in length of the third broken line segment in the first direction, satisfy a second function; Starting from the end of the second overlapping segment that is away from the first overlapping portion, the decrease in distance between the second overlapping segment and the first overlapping portion in the second direction, and the increase in thickness of the second overlapping segment in the first direction, satisfy the second function.

13. The display panel as claimed in claim 3, characterized in that, 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 polygonal line portion and a second polygonal line portion, wherein: The first straight portion and the second straight portion extend along the first direction; The first broken line portion connects the first end of the first straight line portion and the first end of the second straight line portion, and the second broken line portion connects the second end of the first straight line portion and the second end of the second straight line portion; Furthermore, the first electrode located above the first straight section and the first electrode located above the second straight section overlap with the isolation structure; The first electrode, located above the first straight portion and above the second straight portion, has the first thickness.

14. The display panel as claimed in claim 13, characterized in that, The first broken line portion includes a first broken line segment and a second broken line segment, wherein: The first broken line segment connects the second broken line segment and the first straight line segment, the second broken line segment connects the first broken line segment and the second straight line segment, the angle between the first broken line segment and the first straight line segment is greater than 90 degrees, and the angle between the second broken line segment and the second straight line segment is greater than 90 degrees. Furthermore, the first electrode located above the first broken line segment and the first electrode located above the second broken line segment overlaps with the isolation structure; The first electrode, located above the first broken line segment and above the second broken line segment, has the second thickness.

15. The display panel as claimed in claim 14, characterized in that, The second broken line portion includes a third broken line segment and a fourth broken line segment, wherein: The third broken line segment is connected between the fourth broken line segment and the first straight line portion, the fourth broken line segment is connected between the third broken line segment and the second straight line portion, the angle between the third broken line segment and the first straight line portion is greater than 90 degrees, and the angle between the fourth broken line segment and the second straight line portion is greater than 90 degrees. Furthermore, the first electrode located above the third folded line segment and the first electrode located above the fourth folded line segment overlaps with the isolation structure; The first electrode, located above the third segment and above the fourth segment, has the second thickness.

16. The display panel as claimed in claim 15, characterized in that, The overlapping portion includes: A plurality of first overlapping portions, the plurality of first overlapping portions including a third overlapping section and a fourth overlapping section, the third overlapping section being located above the first straight portion and the fourth overlapping section being located above the second straight portion; Multiple second overlapping portions, the multiple second overlapping portions including a first overlapping segment, a second overlapping segment, a fifth overlapping segment and a sixth overlapping segment, wherein the first overlapping segment is located above the first broken line segment, the second overlapping segment is located above the third broken line segment, the fifth overlapping segment is located above the second broken line segment, and the sixth overlapping segment is located above the fourth broken line segment; The plurality of first overlapping portions and the plurality of second overlapping portions are integral structures.

17. The display panel as claimed in claim 16, characterized in that, The thickness of the end of the second overlap away from the first overlap is greater than or equal to 0 angstroms and less than the thickness of the first overlap; the thickness of the end of the second overlap connected to the first overlap is less than or equal to the thickness of the first overlap and greater than the thickness of the end of the second overlap away from the first overlap. The thickness of the second overlap gradually increases in the direction close to the first overlap. The maximum thickness of the main body is less than or equal to 220 angstroms; The maximum thickness of the first overlap is less than or equal to 110 angstroms; The thickness of the end of the main body away from the first overlapping portion is less than the thickness of the first overlapping portion.

18. The display panel as claimed in claim 16, characterized in that, Taking the end of the second broken line segment away from the second straight line portion as the starting point, the decrease in distance between the second broken line segment and the second straight line portion in the second direction, and the increase in length of the second broken line segment in the first direction, satisfy a third function, wherein the second direction is perpendicular to the first direction; Starting from the end of the fifth overlapping segment that is furthest from the fourth overlapping segment, the decrease in distance between the fifth overlapping segment and the fourth overlapping segment in the second direction, and the increase in thickness of the fifth overlapping segment in the first direction, satisfy the third function.

19. The display panel as claimed in claim 18, characterized in that, Taking the end of the fourth broken line segment away from the second straight line portion as the starting point, the decrease in distance between the fourth broken line segment and the second straight line portion in the second direction, and the increase in length of the fourth broken line segment in the first direction, satisfy a fourth function; Starting from the end of the sixth overlapping segment that is furthest from the fourth overlapping segment, the decrease in distance between the sixth overlapping segment and the fourth overlapping segment in the second direction, and the increase in thickness of the sixth overlapping segment in the first direction, satisfy the fourth function.

20. The display panel as claimed in claim 3, characterized in that, The at least one first edge portion includes a first straight line portion, and the plurality of second edge portions include a first polygonal line portion and a second polygonal line portion, wherein: The first straight portion extends along the first direction; The first broken line portion connects the first end of the first straight line portion and the second broken line portion, and the second broken line portion connects the second end of the first straight line portion and the first broken line portion; Furthermore, the first electrode located above the first straight section overlaps with the isolation structure.

21. The display panel as claimed in claim 20, characterized in that, The first electrode located above the first straight portion has the first thickness; The first broken line portion includes a first broken line segment and a second broken line segment, wherein: The first broken line segment connects the second broken line segment and the first straight line portion, the second broken line segment connects the first broken line segment and the second broken line portion, and the included angle between the first broken line segment and the first straight line portion is greater than 90 degrees; Furthermore, the first electrode located above the first broken line segment overlaps with the isolation structure.

22. The display panel as claimed in claim 20, characterized in that, The first electrode located above the first broken line segment has the second thickness; The second broken line portion includes a third broken line segment and a fourth broken line segment, wherein: The third broken line segment connects the fourth broken line segment and the first straight line portion, the fourth broken line segment connects the third broken line segment and the first broken line portion, and the included angle between the third broken line segment and the first straight line portion is greater than 90 degrees; Furthermore, the first electrode located above the third folded line segment overlaps with the isolation structure; The first electrode located above the third broken line segment has the second thickness.

23. The display panel as claimed in claim 21, characterized in that, The overlapping portion includes: The first overlapping portion is located above the first straight portion; Multiple second overlapping portions, the multiple second overlapping portions including a first overlapping segment, a second overlapping segment, a fifth overlapping segment and a sixth overlapping segment, wherein the first overlapping segment is located above the first broken line segment, the second overlapping segment is located above the third broken line segment, the fifth overlapping segment is located above the second broken line segment, and the sixth overlapping segment is located above the fourth broken line segment; The first overlapping portion and the plurality of second overlapping portions are an integral structure.

24. The display panel as claimed in claim 23, characterized in that, The thickness of the end of the second overlap away from the first overlap is greater than or equal to 0 angstroms and less than the thickness of the first overlap; the thickness of the end of the second overlap connected to the first overlap is less than or equal to the thickness of the first overlap and greater than the thickness of the end of the second overlap away from the first overlap. The thickness of the second overlap gradually increases in the direction close to the first overlap.

25. The display panel as claimed in claim 1, characterized in that, 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 connecting 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 inside the virtual quadrilateral.

26. The display panel as claimed in claim 25, characterized in that, The wavelength of light emitted by the first light-emitting device is greater than the wavelength of light emitted by the second and third light-emitting devices; The wavelength of light emitted by the second light-emitting device is greater than the wavelength of light emitted by the third light-emitting device.

27. The display panel as claimed in claim 25, characterized in that, The isolation opening includes: A first opening, wherein at least a portion of the first light-emitting device is located in the first opening; The second opening, wherein at least a portion of the second light-emitting device is located in the second opening; A third opening, in which at least a portion of the third light-emitting device is located; The diameter of the second opening is smaller than the diameters of the first opening and the third opening; The size of the first opening is smaller than the diameter of the third opening.

28. The display panel as claimed in claim 3, characterized in that, The contact area between the overlapping portion located above the plurality of second edge portions and the isolation structure is not greater than the contact area between the overlapping portion located above the at least one first edge portion and the isolation structure; In the direction close to the first edge, the contact area between the overlapping portion above the plurality of second edges and the isolation structure gradually increases.

29. The display panel as claimed in claim 28, characterized in that, The light-emitting device further includes: The 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.

30. The display panel as claimed in claim 29, characterized in that, The first electrode extends from the surface of the light-emitting functional layer away from the substrate to the sidewall of the isolation structure; The orthogonal projection of the first electrode on the substrate covers the orthogonal projection of the light-emitting functional layer on the substrate.

31. The display panel as described in claim 3, characterized in that, The isolation structure also includes: An adhesive portion is provided on the side of the support portion near the substrate, and the adhesive portion protrudes from the support portion toward the isolation opening; The materials of the adhesive portion, the support portion, and the barrier portion include metallic materials; The overlapping portion overlaps with the adhesive portion.

32. The display panel as claimed in claim 1, characterized in that, Also includes: An encapsulation layer is disposed on the side of the light-emitting device facing 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; The encapsulation layer includes a plurality of sub-encapsulation portions, which extend from the surface of the first electrode away from the substrate to the side of the isolation structure away from the substrate, and there is a gap between two adjacent sub-encapsulation portions; The encapsulation layer is made of inorganic materials.

33. A display device, characterized in that, Includes the display panel as described in any one of claims 1-32.

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