Display panel and display device

Abstract

The invention provides a display panel and a display device, and relates to the technical field of display. According to the display panel, at least three partition parts are arranged between at least part of two adjacent sub-pixels, the leakage flow path between the two adjacent sub-pixels is prolonged, the leakage flow uniformity is improved, the problem that the sub-pixels are lighted secretly is solved to the maximum extent, and the display effect of the display panel is improved.

Description

Technical Field

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

[0002] Tandem OLEDs (Tandem Organic Light Emitting Diodes, also known as tandem OLEDs) vertically stack multiple light-emitting units through a transparent interconnect layer, primarily used in lighting and high-end display applications. Their core structure comprises two or more layers of light-emitting units connected by a charge generation layer (CGL), utilizing the pn junction tunneling effect to achieve efficient carrier injection.

[0003] Since the charge generation layer is usually a full-surface structure covering all sub-pixels in the display panel, when the display panel is displaying, in addition to the normal vertical migration of charge carriers from their respective cathodes and / or anodes to the corresponding light-emitting layer, there will also be a situation where charge carriers migrate laterally between the light-emitting units of different sub-pixels through the aforementioned charge generation layer, i.e., lateral leakage occurs. This leads to crosstalk problems between different sub-pixels when the display panel is displaying. For example, sub-pixels that should not emit light may emit light, i.e., "stealing light," which affects the display effect.

[0004] Therefore, partitions are set in the display panel to extend the leakage path between sub-pixels to improve the problem of sub-pixel overexposure. However, the leakage path between sub-pixels is still relatively short, and the problem of sub-pixel overexposure still exists, affecting the display effect of the display panel. Summary of the Invention

[0005] In view of the above problems, this application provides a display panel and display device to improve the display effect of the display panel. The specific solution is as follows:

[0006] A first aspect of this application provides a display panel, the display panel comprising: a substrate;

[0007] A pixel definition layer located on one side of the substrate; the pixel definition layer has multiple sub-pixel openings for setting sub-pixels, and the pixel definition layer is provided with multiple partitions;

[0008] At least three of the aforementioned partitions are provided between at least two partially adjacent sub-pixels.

[0009] A second aspect of this application provides a display panel, the display panel comprising: a substrate;

[0010] A pixel definition layer located on one side of the substrate; the pixel definition layer has a plurality of sub-pixel openings for setting sub-pixels, and the pixel definition layer is provided with a plurality of partition portions surrounding the sub-pixels;

[0011] The sub-pixel includes a first sub-pixel, and the partition includes a first partition surrounding the first sub-pixel;

[0012] The first partition includes two notches;

[0013] The center line connecting the two gaps in one part of the first partition intersects with the center line connecting the two gaps in another part of the first partition.

[0014] A third aspect of this application provides a display device, the display device comprising any of the above-described display panels.

[0015] By employing the above technical solution, this application provides a display panel and display device. By providing at least three partitions between at least partially adjacent sub-pixels, the leakage path between the two adjacent sub-pixels is extended, and the leakage uniformity is improved, so as to solve the problem of sub-pixel overexposure to the greatest extent and improve the display effect of the display panel. Attached Figure Description

[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0018] Figure 2 A cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention;

[0019] Figure 3 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention;

[0020] Figure 4 A cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention;

[0021] Figure 5 This is a partial structural diagram of a display area in a display panel provided by an embodiment of the present invention;

[0022] Figure 6 A method for providing an embodiment of the present invention along Figure 5 A schematic diagram of the cross-section in the FF' direction;

[0023] Figure 7 A method provided by an embodiment of the present invention Figure 6 A partial schematic diagram of the area surrounding the central support section;

[0024] Figure 8 A method for providing an embodiment of the present invention along Figure 7 A schematic diagram of the cross-section in the EE' direction;

[0025] Figure 9 A method for providing an embodiment of the present invention along Figure 7 A schematic diagram of the cross-section along the HH' direction;

[0026] Figure 10 A method provided by an embodiment of the present invention Figure 6 A partial schematic diagram of a sub-pixel that is not adjacent to the support portion;

[0027] Figure 11 This is a partial structural diagram of the display area in another display panel provided in an embodiment of the present invention;

[0028] Figure 12 A schematic diagram of a blue sub-pixel leakage path provided in an embodiment of the present invention;

[0029] Figure 13 A schematic diagram of a red sub-pixel leakage path provided in an embodiment of the present invention;

[0030] Figure 14 This is a partial structural diagram of the display area in another display panel provided by an embodiment of the present invention;

[0031] Figure 15 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0032] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is only for explaining specific embodiments and is not intended to limit the application. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] It should be noted that the directional terms appearing in this invention are based on the relative positional relationships shown in the accompanying drawings and should not be taken as absolute limitations on this application.

[0035] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0036] refer to Figure 1 , Figure 1 This is a schematic diagram of a display panel according to an embodiment of the present invention. The display panel 100 provided in this embodiment of the present invention is divided into a display area AA and a non-display area BB that at least partially surrounds the display area AA. The non-display area BB is typically the border area of ​​the display panel 100.

[0037] Specifically, in this embodiment of the invention, the display area AA includes a plurality of sub-pixels 11. For example, the plurality of sub-pixels 11 may include a first sub-pixel 111 and a second sub-pixel 112, with the first sub-pixel 111 and the second sub-pixel 112 emitting different colors of light. For instance, the first sub-pixel 111 is an R sub-pixel, the second sub-pixel 112 is a G sub-pixel, the first sub-pixel 111 emits red light, and the second sub-pixel 112 emits green light. Optionally, to achieve full-color display of the display panel 100, the plurality of sub-pixels 11 may further include a third sub-pixel 113, the third sub-pixel 113 being a B sub-pixel used to emit blue light.

[0038] refer to Figure 2 , Figure 2 This is a cross-sectional schematic diagram of a display panel provided in an embodiment of the present invention. The display panel 100 provided in this embodiment of the present invention includes: a substrate 12.

[0039] A pixel definition layer 13 is located on one side of the substrate 12; the pixel definition layer 13 has a plurality of sub-pixel openings 14 for setting sub-pixels 11; the pixel definition layer 13 is provided with a plurality of partition portions 15.

[0040] Specifically, in this embodiment of the invention, the display panel 100 may further include a buffer layer 16 and an array layer 17 located between the substrate 12 and the pixel definition layer 13.

[0041] The array layer 17 includes, but is not limited to, a plurality of thin-film transistors 18, a passivation layer 19, and a planarization layer 20. The thin-film transistors 18 may include an active layer 181, a gate 182, a source 183, and a drain 184. The array layer 17 may also include a gate insulating layer 171 disposed between the active layer 181 and the gate 182, and an interlayer insulating layer 172 disposed between the gate 182 and the source 183 and the drain 184. The passivation layer 19 is disposed on the side of the source 183 and the drain 184 away from the interlayer insulating layer 172. The planarization layer 20 is disposed on the side of the passivation layer 19 away from the interlayer insulating layer 172. The pixel definition layer 13 is disposed on the side of the planarization layer 20 away from the substrate 12. It should be noted that, in this embodiment of the invention, the source 183 and the drain 184 are located on the same layer as an example.

[0042] It should be noted that the pixel definition layer 13 is attached Figure 2 It has multiple layers of structure, which will not be elaborated on here, and is attached. Figure 2 The following explanation uses only one thin-film transistor 18 as an example. The circuit structure, including the pixel circuit and other components, is composed of the thin-film transistor 18 and other components used to drive the sub-pixel 11 to illuminate.

[0043] Optionally, the display panel 100 provided in this embodiment of the invention may further include an encapsulation layer, which includes, but is not limited to, a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer sequentially disposed on the pixel definition layer 13, and the encapsulation layer includes, but is not limited to, a thin film encapsulation (TFE) layer.

[0044] Optionally, the substrate 12 is a flexible insulating material substrate with properties such as stretchability, bendability, or flexibility. Its material includes, but is not limited to, polyimide (PI), polycarbonate (PC), or polyethylene terephthalate (PET).

[0045] Optionally, the buffer layer 16 includes, but is not limited to, an inorganic material layer or an organic material layer. The inorganic material layer includes, but is not limited to, silicon oxide, silicon nitride, silicon oxynitride, aluminum oxide, or aluminum nitride. The organic material layer includes, but is not limited to, acrylic or PI. In this embodiment of the invention, the buffer layer is described using an organic material layer as an example.

[0046] like Figure 2 As shown, the partition portion 15 provided on the pixel definition layer 13 is illustrated by taking the groove portion 15-1 as an example. Normally, the groove portion 15-1 does not penetrate the pixel definition layer 13.

[0047] refer to Figure 3 , Figure 3 This is a cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention. (See diagram below.) Figure 3 As shown, the partition portion 15 provided on the pixel definition layer 13 will be described using the protrusion portion 15-2 as an example.

[0048] refer to Figure 4 , Figure 4 This is a cross-sectional schematic diagram of another display panel provided in an embodiment of the present invention. (See attached diagram.) Figure 4 As shown, one part of the partition 15 is a groove 15-1 provided on the pixel definition layer 13, and the other part of the partition 15 is a protrusion 15-2 provided on the pixel definition layer 13.

[0049] Combination Figure 2 and Figure 3 Regarding the display panel 100 shown, it can be understood that, in this embodiment of the invention, the partition portion 15 is a recessed portion 15-1 or a protrusion 15-2 provided on the pixel definition layer 13. In conjunction with... Figure 4 Regarding the display panel 100 shown, it is understood that in the embodiment of the present invention, the partition portion 15 on the pixel definition layer 13 includes both the groove portion 15-1 and the protrusion portion 15-2.

[0050] like Figures 2-4 As shown, the sub-pixel 11 provided in this embodiment of the invention includes:

[0051] The first electrode 21 is located on one side of the substrate 12.

[0052] The first light-emitting layer 22 is located on the side of the first electrode 21 opposite to the substrate 12.

[0053] The charge generation layer 23 is located on the side of the first light-emitting layer 22 opposite to the first electrode 21.

[0054] The second light-emitting layer 24 is located on the side of the charge-generating layer 23 opposite to the first light-emitting layer 22.

[0055] The second electrode 25 is located on the side of the second light-emitting layer 24 opposite to the charge-generating layer 23.

[0056] Specifically, in this embodiment of the invention, the first electrode 21 can be understood as the anode of the sub-pixel 11, and the second electrode 25 can be understood as the cathode of the sub-pixel 11. The charge generation layer 23 includes at least an N-type doped charge generation layer and a P-type doped charge generation layer, which serve as a transparent anode and a transparent cathode, respectively. Optionally, the N-type doped charge generation layer is disposed adjacent to the first light-emitting layer 22, and the P-type doped charge generation layer is disposed adjacent to the second light-emitting layer 24, thereby realizing the connection of the two-layer light-emitting unit and achieving efficient carrier injection by utilizing the pn junction tunneling effect.

[0057] In the process of inventing this application, the applicant discovered that in existing display panels, each sub-pixel 11 is provided with a corresponding partition 15, and there are only two partitions 15 between two adjacent sub-pixels 11; or some sub-pixels 11 are not provided with corresponding partitions 15, resulting in the leakage path between sub-pixels 11 in existing display panels still being relatively short, and the problem of sub-pixels 11 stealing light still exists, affecting the display effect of the display panel.

[0058] Based on this, refer to Figure 5 , Figure 5 This is a partial structural diagram of the display area in a display panel according to an embodiment of the present invention, with reference to... Figure 6 , Figure 6 A method for providing an embodiment of the present invention along Figure 5 A cross-sectional schematic diagram in the FF' direction. In the display panel 100 provided by the embodiment of the present invention, at least three of the aforementioned partition portions 15 are provided between at least two partially adjacent sub-pixels 11, thereby extending the leakage path between the two adjacent sub-pixels 11, improving leakage uniformity, and maximizing the solution to the problem of sub-pixel 11 stealing light, thus improving the display effect of the display panel 100.

[0059] Optional, such as Figure 5 As shown, the sub-pixel 11 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113.

[0060] Wherein, the sub-pixels in the i-th row include the first sub-pixel 111 and the second sub-pixel 112 arranged alternately along the first direction X; the sub-pixels in the (i+1)-th row include the second sub-pixel 112 and the third sub-pixel 113 arranged alternately along the first direction X; the sub-pixels in the j-th column include the first sub-pixel 111 and the second sub-pixel 112 arranged alternately along the second direction Y; the sub-pixels in the (j+1)-th column include the second sub-pixel 112 and the third sub-pixel 113 arranged alternately along the second direction Y; the first direction X and the second direction Y intersect, where i and j are both arbitrary positive integers.

[0061] It should be noted that the embodiments of this application only provide one feasible arrangement of sub-pixels 11, and the technical solution of this application is also applicable to sub-pixels 11 with other arrangement methods.

[0062] In an optional embodiment of the present invention, such as Figure 5 and Figure 6 As shown, the partition portion 15 in the display panel 100 provided in this embodiment of the invention includes a first partition portion 151 and a second partition portion 152.

[0063] The first partition portion 151 includes a notch 1511, and the first partition portion 151 surrounds the sub-pixel 11.

[0064] The second partition 152 is located between the first partitions 151 corresponding to at least two partially adjacent sub-pixels 11.

[0065] Specifically, in this embodiment of the invention, each sub-pixel 11 is surrounded by a first partition portion 151, and each first partition portion 151 has a notch 1511 to reduce leakage from the sub-pixel 11 to other sub-pixels, thereby improving the problem of other sub-pixels 11 being lit up when this sub-pixel 11 is lit, and thus improving the display effect of the display panel 100. Furthermore, a second partition portion 152 is provided between the first partition portions 151 corresponding to two adjacent sub-pixels 11, so that there are actually three partition portions 15 between these two adjacent sub-pixels 11, which extends the leakage path between the two adjacent sub-pixels 11, improves the uniformity of leakage, and solves the problem of sub-pixel 11 being lit up to the greatest extent, thereby improving the display effect of the display panel 100.

[0066] The three partitions 15 between two adjacent sub-pixels 11 are composed of three parts: the first part is the part of the first partition 151 corresponding to the first sub-pixel facing the second sub-pixel; the second part is the second partition 152; and the third part is the part of the first partition 151 corresponding to the second sub-pixel facing the first sub-pixel, thereby satisfying the requirement that there are three partitions 15 between the two adjacent sub-pixels 11.

[0067] Optional, such as Figure 5 As shown, the second partition portion 152 is strip-shaped. In other feasible solutions, the second partition portion 152 can also be curved, zig-shaped, or other shapes to extend the leakage path between two adjacent sub-pixels 11 as much as possible.

[0068] It should be noted that when the second partition 152 is strip-shaped, the length of the second partition 152 is greater than or equal to the size of the notch 1511. The size of the notch 1511 can be understood as the distance between the two ends of the notch 1511.

[0069] When the notch 1511 is directly opposite the second partition 152, in a direction perpendicular to the length extension direction of the second partition 152, it is necessary to ensure that the orthographic projection of the second partition 152 completely covers the notch 1511 so that the leakage current must bypass the second partition 152 during transmission, thereby achieving the requirement of extending the leakage current path; if the second partition 152 and the notch 1511 only partially overlap, the leakage current path cannot be extended in the non-overlapping parts.

[0070] In an optional embodiment of the present invention, reference is made to... Figure 7 , Figure 7 A method provided by an embodiment of the present invention Figure 6 A partial schematic diagram of the area surrounding the central support section, for reference. Figure 8 , Figure 8 A method for providing an embodiment of the present invention along Figure 7 A schematic diagram of the cross-section in the EE' direction, for reference. Figure 9 , Figure 9 A method for providing an embodiment of the present invention along Figure 7 A cross-sectional schematic diagram along the HH' direction. The display panel 100 provided in this embodiment of the invention also includes a plurality of support portions 26.

[0071] Among the plurality of first partition portions 151 adjacent to the support portion 26, at least a portion of the notches 1511 of the first partition portions 151 are arranged directly opposite to the support portion 26.

[0072] Specifically, in this embodiment of the invention, the support portion 26 is also referred to as a PS column in the art, such that at least part of the notch 1511 of the first partition portion 151 is directly opposite to the support portion 26, which can increase the design margin of the support portion 26 and prevent the support portion 26 from being positioned in the area where the partition portion 15 is located, thus affecting the shape of the partition portion 15 and the height and strength of the support portion 26.

[0073] Typically, a support portion 26 is surrounded by multiple sub-pixels 11, such as... Figure 7As shown, four sub-pixels 11 are arranged sequentially around the support portion 26: a first sub-pixel 111, a first second sub-pixel 112, a third sub-pixel 113, and a second second sub-pixel 112. In the direction of their arrangement, it is sufficient to ensure that the gaps 1511 of the first partition portions 15 corresponding to any two adjacent sub-pixels 11 do not simultaneously face the support portion 26. For example, the gaps 1511 of the first partition portions 15 corresponding to the first sub-pixel 111 and the first second sub-pixel 112 do not simultaneously face the support portion 26. If, in the direction of their arrangement, the gaps 1511 of the first partition portions 15 corresponding to any two adjacent sub-pixels 11 simultaneously face the support portion 26, the drain path between these two sub-pixels 11 will be greatly reduced, which contradicts the purpose of this application's technical solution to extend the drain path.

[0074] Based on this, in this embodiment, the notches 1511 of the first partition portions 151 corresponding to the sub-pixels 11 on opposite sides of the support portion 26 are positioned directly opposite to the support portion 26. In this case, the support portion 26 can serve as a component for extending the leakage path between these two notches 1511. An optimal implementation involves positioning the notches 1511 of the first partition portions 151 corresponding to the sub-pixels 11 on opposite sides of the support portion 26 along its length extension direction directly opposite to the support portion 26, thereby maximizing the extension of the leakage path between these two notches 1511.

[0075] For example, such as Figure 7 As shown, the sub-pixel 11 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113.

[0076] The first sub-pixel 111 is a red sub-pixel, the second sub-pixel 112 is a green sub-pixel, and the third sub-pixel 113 is a blue sub-pixel.

[0077] In the red sub-pixel, the green sub-pixel, and the blue sub-pixel adjacent to the support portion 26, the notch 1511 of the first partition portion 151 corresponding to the red sub-pixel is directly opposite to the support portion 26, the notch 1511 of the first partition portion 151 corresponding to the blue sub-pixel is directly opposite to the support portion 26, and the notch 1511 of the first partition portion 151 corresponding to the green sub-pixel is directly opposite to the second partition portion 152.

[0078] Furthermore, considering the potential for green sub-pixels to steal light when blue sub-pixels are lit, and the same applies to red sub-pixels, when the gaps 1511 of the first partition portion 151 corresponding to the red and blue sub-pixels are aligned with the support portion 26, the gaps 1511 of the first partition portion 151 corresponding to the green sub-pixels are aligned with the second partition portion 152. This extends the distance between the gaps 1511 of the first partition portion 151 corresponding to the red and green sub-pixels, increasing the leakage path between them. Additionally, extending the distance between the gaps 1511 of the first partition portion 151 corresponding to the blue and green sub-pixels further increases the leakage path between them.

[0079] In an optional embodiment of the present invention, such as Figure 5 As shown, the second partition 152 is located between adjacent red sub-pixels and green sub-pixels, and the second partition 152 is located between adjacent blue sub-pixels and green sub-pixels.

[0080] Specifically, in this embodiment of the invention, considering that when the red sub-pixel is lit, the green sub-pixel may steal light, the second partition 152 is set between the red sub-pixel and the green sub-pixel to extend the leakage path between the red sub-pixel and the green sub-pixel, so as to avoid the problem that when one of the red sub-pixels 11 is lit, the other sub-pixel 11 steals light.

[0081] Furthermore, considering that when the blue sub-pixel is lit, the green sub-pixel may also be lit up, the second partition 152 is set between the blue sub-pixel and the green sub-pixel to extend the leakage path between the blue sub-pixel and the green sub-pixel, so as to avoid the problem that when one of the blue sub-pixels 11 is lit up, the other sub-pixel 11 is lit up, thereby maximizing the display effect of the display panel 100.

[0082] In an optional embodiment of the present invention, reference is made to... Figure 10 , Figure 10 A method provided by an embodiment of the present invention Figure 5 A partial schematic diagram of a sub-pixel that is not adjacent to the support portion. In the display panel 100 provided by this embodiment of the invention, the notches 1511 of the first partition portions 151 corresponding to two adjacent sub-pixels 11 that are not adjacent to the support portion 26 are not directly opposite each other.

[0083] Specifically, in this embodiment of the invention, considering that when the partition 15 is provided, the current transmission path between sub-pixels 11 is mainly through the gaps 1511, if the gaps 1511 of the first partition 151 corresponding to two adjacent sub-pixels 11 that are not adjacent to the support 26 are directly opposite each other, the length of the current transmission path between these two sub-pixels 11 is obviously the distance between the two gaps 1511, which contradicts the purpose of the present application to extend the leakage path. Therefore, in this embodiment of the application, the gaps 1511 of the first partition 151 corresponding to two adjacent sub-pixels 11 that are not adjacent to the support 26 are not directly opposite each other, so as to extend the leakage path between these two gaps 1511 to the greatest extent, solve the problem of sub-pixel 11 stealing light, and thus maximize the display effect of the display panel 100.

[0084] In an optional embodiment of the present invention, reference is made to... Figure 11 , Figure 11 This is a partial structural diagram of the display area in another display panel provided in an embodiment of the present invention. In the display panel 100 provided in this embodiment, at least three partition portions 15 are provided between at least two partially adjacent sub-pixels 11, extending the leakage path between the two adjacent sub-pixels 11, improving leakage uniformity, and thus maximally solving the problem of sub-pixel smuggling, thereby improving the display effect of the display panel 100.

[0085] Optional, such as Figure 11 As shown, the sub-pixel 11 includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113.

[0086] Wherein, the sub-pixels in the i-th row include the first sub-pixel 111 and the second sub-pixel 112 arranged alternately along the first direction X; the sub-pixels in the (i+1)-th row include the second sub-pixel 112 and the third sub-pixel 113 arranged alternately along the first direction X; the sub-pixels in the j-th column include the first sub-pixel 111 and the second sub-pixel 112 arranged alternately along the second direction Y; the sub-pixels in the (j+1)-th column include the second sub-pixel 112 and the third sub-pixel 113 arranged alternately along the second direction Y; the first direction X and the second direction Y intersect, where i and j are both arbitrary positive integers.

[0087] It should be noted that the embodiments of this application only provide one feasible arrangement of sub-pixels 11, and the technical solution of this application is also applicable to sub-pixels 11 with other arrangement methods.

[0088] In an optional embodiment of the present invention, such as Figure 11As shown, the partition portion 15 in the display panel 100 provided in this embodiment of the invention includes a first partition portion 151.

[0089] The first partition portion 151 includes a notch 1511, and the first partition portion 151 surrounds the sub-pixel 11.

[0090] Some of the first partition portions 151 are arranged in a spiral shape.

[0091] like Figure 11 As shown, the spiral-shaped first partition 151 can be understood as a partition 15 that is not connected at the beginning and end, which is formed around the sub-pixel 11 in a clockwise or counterclockwise direction, with one end of the first partition 151 as the starting end. The starting end is located inside the spiral-shaped first partition 151, and the ending end is located outside the spiral-shaped first partition 151.

[0092] Specifically, in this embodiment of the invention, each sub-pixel 11 is surrounded by a first partition portion 151, and each first partition portion 151 has a notch 1511 to reduce leakage from the sub-pixel 11 to other sub-pixels, thereby improving the problem of other sub-pixels 11 being lit up when this sub-pixel 11 is lit, and thus improving the display effect of the display panel 100. Furthermore, some of the first partition portions 151 are arranged in a spiral shape. Based on the number of times the spiral first partition portion 151 wraps around the sub-pixel 11, the number of partition portions 15 between two adjacent sub-pixels 11 can be flexibly defined, so that there are actually three partition portions between two adjacent sub-pixels 11, which lengthens the leakage path between the two adjacent sub-pixels, improves the uniformity of leakage, and solves the problem of sub-pixel 11 being lit up to the greatest extent, thereby improving the display effect of the display panel 100.

[0093] The three partitions 15 between two adjacent sub-pixels 11 are composed of two parts. The first part is the two parts of the first partition 151, which is spirally arranged and faces the second sub-pixel, and the second part is the part of the first partition 151, which faces the first sub-pixel, thus satisfying the requirement that there are three partitions 15 between the two adjacent sub-pixels 11.

[0094] Optional, such as Figure 11 As shown, the sub-pixel 11 in the display panel 100 provided in this embodiment of the invention includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113.

[0095] The first sub-pixel 111 is a red sub-pixel, the second sub-pixel 112 is a green sub-pixel, and the third sub-pixel 113 is a blue sub-pixel.

[0096] The first partition 151 corresponding to the blue sub-pixel is arranged in a spiral shape.

[0097] In one possible implementation, at least three partitions 15 are provided between the blue sub-pixel and the green sub-pixel, at least three partitions 15 are provided between the blue sub-pixel and the red sub-pixel, and two partitions 15 are provided between the red sub-pixel and the green sub-pixel.

[0098] Specifically, in this embodiment of the invention, considering the problem that when the blue sub-pixel is lit, the red sub-pixel and / or the green sub-pixel may steal light, the shape of the first partition portion 151 corresponding to the blue sub-pixel is set to a spiral shape, as shown in the reference. Figure 12 , Figure 12 This is a schematic diagram of a blue sub-pixel leakage path provided in an embodiment of the present invention, as shown below. Figure 12 As shown, based on the spiral-shaped first partition 151, the drain path L1 of the blue sub-pixel can at least completely surround the blue sub-pixel, which can extend the drain path of the blue sub-pixel to the extreme, thereby extending the drain path between the blue sub-pixel and the red and green sub-pixels. This solves the problem of the red and / or green sub-pixels being lit up when the blue sub-pixel is lit, and thus maximizes the display effect of the display panel 100.

[0099] Optionally, the sub-pixel 11 in the display panel 100 provided in this embodiment of the invention includes a first sub-pixel 111, a second sub-pixel 112, and a third sub-pixel 113.

[0100] The first sub-pixel 111 is a red sub-pixel, the second sub-pixel 112 is a green sub-pixel, and the third sub-pixel 113 is a blue sub-pixel.

[0101] The first partition 151 corresponding to the red sub-pixel is arranged in a spiral shape.

[0102] In one possible implementation, at least three partitions 15 are provided between the red sub-pixel and the green sub-pixel, at least three partitions 15 are provided between the red sub-pixel and the blue sub-pixel, and two partitions 15 are provided between the green sub-pixel and the blue sub-pixel.

[0103] Specifically, in this embodiment of the invention, considering the problem that when the red sub-pixel is lit, the blue sub-pixel and / or the green sub-pixel may steal light, the shape of the first partition 151 corresponding to the red sub-pixel is set to a spiral shape, as shown in the reference. Figure 13 , Figure 13 This is a schematic diagram of a red sub-pixel leakage path provided in an embodiment of the present invention, as shown below. Figure 13As shown, based on the spiral-shaped first partition 151, the drain path L2 of the red sub-pixel can at least completely surround the red sub-pixel, which can extend the drain path of the red sub-pixel to the extreme, thereby extending the drain path between the red sub-pixel and the blue and green sub-pixels. This solves the problem of the blue and / or green sub-pixels being lit up when the red sub-pixel is lit, and thus maximizes the display effect of the display panel 100.

[0104] Considering that when the display panel 100 displays a white image, green light accounts for approximately 70% of the brightness, red light accounts for approximately 20% of the brightness, and blue light accounts for approximately 10% of the brightness, the impact on the display effect of the display panel 100 is greatest if the green sub-pixel is lit up. Based on this, in this embodiment, the first partition 151 corresponding to the red sub-pixel can be arranged in a spiral shape, and the first partition 151 corresponding to the blue sub-pixel can also be arranged in a spiral shape, so as to maximize the extension of the leakage path between the red and blue sub-pixels, and the leakage path between the red and green sub-pixels, and between the blue and green sub-pixels, thereby minimizing the problem of green sub-pixels being lit up when the red and / or blue sub-pixels are lit, and thus maximizing the display effect of the display panel 100.

[0105] In an optional embodiment of the present invention, such as Figure 11 As shown, the display panel 100 provided in this embodiment of the invention also includes a plurality of support portions 26; the length extension direction of a portion of the support portions 26 is different from the length extension direction of the other portion of the support portions 26.

[0106] Specifically, in this embodiment of the invention, when the first partition portion 151 corresponding to some sub-pixels 11 is arranged in a spiral shape, it will occupy a relatively large amount of space between the sub-pixels 11. This support portion 26 is also referred to as a PS pillar in the art. The length extension direction of one part of the support portion 26 is different from the length extension direction of another part of the support portion 26, for example, as shown in... Figure 11 As shown, the length extension direction of one part of the support portion 26 is K1, and the length extension direction of the other part of the support portion 26 is K2. Directions K1 and K2 intersect. In other words, the orientation of the support portion 26 is flexibly adjusted based on the spirally arranged first partition portion 1511 to increase the design margin of the support portion 26. This avoids the support portion 26 being positioned in the area where the partition portion 15 is located, which would affect the shape of the partition portion 15 and the height and strength of the support portion 26. This satisfies the spiral design of the first partition portion 151 without affecting the height, length, and strength of the support portion 26, thus ensuring the structural stability of the support portion 26.

[0107] Furthermore, among the plurality of first partition portions 151 adjacent to the support portion 26, at least a portion of the notches of the first partition portions 151 are positioned directly opposite the support portion 26. By ensuring that at least a portion of the notches 1511 of the first partition portions 151 are positioned directly opposite the support portion 26, the design margin of the support portion 26 can be increased, preventing the support portion 26 from being positioned in the area where the partition portions 15 are located, thus avoiding affecting the shape of the partition portions 15 and the height and strength of the support portion 26.

[0108] Typically, a support portion 26 is surrounded by multiple sub-pixels 11. These four sub-pixels 11 are arranged sequentially around the support portion 26: a first sub-pixel 111, a first second sub-pixel 112, a third sub-pixel 113, and a second second sub-pixel 112. In the direction of their arrangement, it is sufficient to ensure that the gaps 1511 of the first partition portion 15 corresponding to any two adjacent sub-pixels 11 are not simultaneously facing the support portion 26. For example, the gaps 1511 of the first partition portion 15 corresponding to the first sub-pixel 111 and the first second sub-pixel 112 are not simultaneously facing the support portion 26. If, in the direction of their arrangement, the gaps 1511 of the first partition portion 15 corresponding to any two adjacent sub-pixels 11 are simultaneously facing the support portion 26, the drain path between these two sub-pixels 11 will be greatly reduced, which contradicts the purpose of this application's technical solution to extend the drain path.

[0109] Based on this, in this embodiment of the application, the notch 1511 of the first partition portion 151 corresponding to at least one sub-pixel 11 located on opposite sides of the support portion 26 is arranged directly opposite to the support portion 26. At this time, the support portion 26 can serve as a component for extending the leakage path between this notch 1511 and other notches 1511.

[0110] In summary, the display panel 100 provided in this application embodiment extends the leakage path between at least two adjacent sub-pixels 11 by providing at least three partition portions 15 between them, thereby improving leakage uniformity and maximizing the solution to the problem of sub-pixel 11 stealing light, thus improving the display effect of the display panel 100.

[0111] Furthermore, during the invention process of this application, it was discovered that the current design scheme for improving the leakage of sub-pixels 11 in the display panel 100 is achieved through the partition portion 15. Since the position of the partition portion 15 and the position of the support portion 26 cannot overlap, when the display panel 100 is provided with the partition portion 15, the design of the support portion 26 needs to be modified to some extent based on the pattern of the partition portion 15. However, the modified support portion 26 will affect the support function of the GFMM and reduce the stability of the display panel 100.

[0112] Based on this, a display panel is also provided in another embodiment of the present invention, see reference. Figure 14 , Figure 14 This is a partial structural diagram of the display area in another display panel provided by an embodiment of the present invention. The display panel 100 provided by the embodiment of the present invention includes: a substrate 12.

[0113] A pixel definition layer 13 is located on one side of the substrate 12; the pixel definition layer 13 has a plurality of sub-pixel openings 14 for setting sub-pixels 11, and the pixel definition layer 13 is provided with a plurality of partition portions 15 surrounding the sub-pixels 11.

[0114] The sub-pixel 11 includes a target sub-pixel, and the partition 15 includes a first partition 151 surrounding the target sub-pixel.

[0115] The first partition portion 151 includes two notches 1511.

[0116] The center line connecting the two gaps 1511 in one part of the first partition 151 intersects with the center line connecting the two gaps 1511 in another part of the first partition 151.

[0117] Specifically, in this embodiment of the invention, the center line connecting the two gaps 1511 of the first partition portion 151 corresponding to the target sub-pixel is changed from a specific direction to two different directions. For example, the center line connecting the two gaps 1511 in the first partition portion 151 corresponding to a part of the target sub-pixel intersects with the center line connecting the two gaps 1511 in the first partition portion 151 corresponding to another part of the target sub-pixel. Under the premise of maintaining the uniformity of the leakage path of the target sub-pixel, the original design of the support portion 26 is not changed, thereby not affecting the supporting function of the GFMM and improving the stability of the display panel 100.

[0118] The target sub-pixel is a red sub-pixel and / or a green sub-pixel.

[0119] like Figure 14 As shown, taking a red sub-pixel (i.e., the first sub-pixel 111 mentioned above) as an example, the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to some red sub-pixels is H1, and the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to other red sub-pixels is H2, where direction H1 and direction H2 intersect. However, in the prior art, the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to all red sub-pixels is H1.

[0120] like Figure 14As shown, taking a green sub-pixel (i.e., the second sub-pixel 112 mentioned above) as an example, the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to some green sub-pixels is H3, and the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to other green sub-pixels is H4, where direction H3 and direction H4 intersect. However, in the prior art, the extension direction of the line connecting the centers of the two gaps 1511 in the first partition portion 151 corresponding to all green sub-pixels is H3.

[0121] Optional, such as Figure 14 As shown, the sub-pixel 11 also includes a blue sub-pixel; the partition 15 corresponding to the blue sub-pixel includes four notches 1511.

[0122] Based on the above embodiments of the present invention, correspondingly, this application also provides a display device, see reference. Figure 15 , Figure 15 This is a schematic diagram of a display device provided in an embodiment of the present invention. The display device 200 includes the display panel 100 described in any of the above embodiments of this application. The display device 200 can be any display device with display function, such as a touch screen, mobile phone, tablet computer, laptop computer, e-reader, or television.

[0123] The above provides a detailed description of the display panel and display device provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0124] It should be noted that each embodiment in this specification focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0125] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that elements inherent to a process, method, article, or apparatus that comprises a list of elements, or elements inherent to such processes, methods, articles, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0126] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, The display panel includes: a substrate; A pixel definition layer located on one side of the substrate; the pixel definition layer has multiple sub-pixel openings for setting sub-pixels, and the pixel definition layer is provided with multiple partitions; At least three of the aforementioned partitions are provided between at least two partially adjacent sub-pixels.

2. The display panel according to claim 1, characterized in that, The sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; The sub-pixels in the i-th row include the first sub-pixels and the second sub-pixels arranged alternately along the first direction; the sub-pixels in the (i+1)-th row include the second sub-pixels and the third sub-pixels arranged alternately along the first direction; the sub-pixels in the j-th column include the first sub-pixels and the second sub-pixels arranged alternately along the second direction; the sub-pixels in the (j+1)-th column include the second sub-pixels and the third sub-pixels arranged alternately along the second direction. The first direction and the second direction intersect.

3. The display panel according to claim 1, characterized in that, The partition includes a first partition and a second partition; The first partition includes a notch, and the first partition surrounds the sub-pixel; The second partition is located between the first partitions corresponding to at least two partially adjacent sub-pixels.

4. The display panel according to claim 3, characterized in that, The display panel also includes multiple support sections; In the plurality of first partitions adjacent to the support portion, at least some of the notches in the first partitions are positioned directly opposite the support portion.

5. The display panel according to claim 4, characterized in that, The sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel; Among the red sub-pixel, the green sub-pixel, and the blue sub-pixel adjacent to the support portion, the notch of the first partition corresponding to the red sub-pixel is directly opposite to the support portion, the notch of the first partition corresponding to the blue sub-pixel is directly opposite to the support portion, and the notch of the first partition corresponding to the green sub-pixel is directly opposite to the second partition.

6. The display panel according to claim 5, characterized in that, The second partition is located between adjacent red sub-pixels and green sub-pixels, and the second partition is located between adjacent blue sub-pixels and green sub-pixels.

7. The display panel according to claim 4, characterized in that, In the sub-pixels that are not adjacent to the support portion, the gaps in the first partition portions corresponding to two adjacent sub-pixels are not directly opposite each other.

8. The display panel according to claim 3, characterized in that, The second partition is strip-shaped.

9. The display panel according to claim 1, characterized in that, The partition includes a first partition; The first partition includes a notch, and the first partition surrounds the sub-pixel; Some of the first partition portions are arranged in a spiral shape.

10. The display panel according to claim 9, characterized in that, The sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel; The first partition corresponding to the red sub-pixel is arranged in a spiral shape.

11. The display panel according to claim 10, characterized in that, At least three partitions are provided between the red sub-pixel and the green sub-pixel, at least three partitions are provided between the red sub-pixel and the blue sub-pixel, and two partitions are provided between the green sub-pixel and the blue sub-pixel.

12. The display panel according to claim 9, characterized in that, The sub-pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel; The first sub-pixel is a red sub-pixel, the second sub-pixel is a green sub-pixel, and the third sub-pixel is a blue sub-pixel; The first partition corresponding to the blue sub-pixel is arranged in a spiral shape.

13. The display panel according to claim 12, characterized in that, At least three partitions are provided between the blue sub-pixel and the green sub-pixel, at least three partitions are provided between the blue sub-pixel and the red sub-pixel, and two partitions are provided between the red sub-pixel and the green sub-pixel.

14. The display panel according to claim 9, characterized in that, The display panel also includes a plurality of support portions; the length extension direction of a portion of the support portions is different from the length extension direction of another portion of the support portions; In the plurality of first partitions adjacent to the support portion, at least some of the notches in the first partitions are positioned directly opposite the support portion.

15. The display panel according to claim 1, characterized in that, The partition portion is a groove or protrusion provided on the pixel definition layer.

16. The display panel according to claim 15, characterized in that, One part of the partition portion is a groove portion provided on the pixel definition layer, and the other part of the partition portion is a protrusion portion provided on the pixel definition layer.

17. The display panel according to claim 1, characterized in that, The sub-pixels include: A first electrode located on one side of the substrate; A first light-emitting layer located on the side of the first electrode facing away from the substrate; A charge generation layer located on the side of the first light-emitting layer opposite to the first electrode; The second light-emitting layer is located on the side of the charge-generating layer opposite to the first light-emitting layer; The second electrode is located on the side of the second light-emitting layer opposite to the charge-generating layer.

18. A display panel, characterized in that, The display panel includes: a substrate; A pixel definition layer located on one side of the substrate; the pixel definition layer has a plurality of sub-pixel openings for setting sub-pixels, and the pixel definition layer is provided with a plurality of partition portions surrounding the sub-pixels; The sub-pixel includes a target sub-pixel, and the partition includes a first partition surrounding the target sub-pixel; The first partition includes two notches; The center line connecting the two gaps in one part of the first partition intersects with the center line connecting the two gaps in another part of the first partition.

19. The display panel according to claim 18, characterized in that, The target sub-pixel is a red sub-pixel and / or a green sub-pixel.

20. The display panel according to claim 19, characterized in that, The sub-pixel also includes a blue sub-pixel; The partition corresponding to the blue sub-pixel includes four notches.

21. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1-20.

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