Display panel, manufacturing method thereof and display device

Abstract

The invention relates to a display panel and a manufacturing method thereof and a display device.The display panel comprises a substrate, a plurality of light-emitting structures and a partition structure, the substrate is provided with a plurality of island areas, a plurality of bridge areas and a plurality of hole opening areas, each hole opening area is arranged between every two adjacent island areas, every two adjacent island areas are connected through the corresponding bridge area, and the partition structure is arranged between every two adjacent island areas. The light-emitting structure is arranged on one side of the substrate and located in the island region, the light-emitting structure comprises a first electrode, a light-emitting function layer and a second electrode which are arranged in a stacked mode, the partition structure is arranged in the island region of the substrate and located between at least part of adjacent light-emitting structures, and the partition structure comprises a conductive part; the second electrode is electrically connected with the conductive part. In the display panel, the conductive part can serve as an auxiliary electrode, the voltage distribution uniformity of the second electrode is improved, the static resistance drop of the second electrode is reduced, the use power consumption of the display panel is reduced, meanwhile, the display brightness uniformity of the display panel is improved, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and particularly to a display panel, a manufacturing method thereof, and a display device. Background Art

[0002] With the development of display technology, OLED (Organic Light Emitting Diode) display panels have been widely used due to their advantages of being thinner, brighter, lower power consumption, faster response, and higher clarity.

[0003] Among them, stretchable display products have received increasing attention. In stretchable display products, the resistance of the display electrodes is relatively large, which affects the display effect. Summary of the Invention

[0004] Based on this, in view of the problem that the resistance of the electrodes of the display panel is relatively large and affects the display effect, it is necessary to provide a display panel, a manufacturing method thereof, and a display device.

[0005] According to one aspect of the present application, an embodiment of the present application provides a display panel, including: a substrate, having a plurality of island regions, a plurality of bridge regions, and a plurality of opening regions, the opening regions being disposed between two adjacent island regions, and two adjacent island regions being connected to each other through the bridge regions; a plurality of light-emitting structures, disposed on one side of the substrate and located in the island regions, the light-emitting structures including a first electrode, a light-emitting functional layer, and a second electrode stacked; and a partition structure, disposed in the island regions of the substrate and located between at least some adjacent light-emitting structures, the partition structure including a conductive portion; wherein, the second electrode is electrically connected to the conductive portion.

[0006] In the above display panel, by providing a partition structure between at least some adjacent light-emitting structures and electrically connecting the second electrode of the light-emitting structure to the conductive portion of the partition structure, thus, the second electrodes of the respective light-emitting structures are integrally electrically connected through the conductive portion to form a whole-surface electrode. The conductive portion can be used as an auxiliary electrode to improve the voltage distribution uniformity of the second electrode, reduce the static resistance voltage drop of the second electrode, reduce the power consumption of the display panel during use, and at the same time improve its display brightness uniformity, thereby improving the display effect of the display panel.

[0007] In one embodiment, the partition structure includes an isolation body and a blocking portion, the blocking portion is located on a side of the isolation body away from the substrate, and a positive projection of the isolation body on the substrate surface is located within a positive projection of the blocking portion on the substrate surface; the isolation body includes the conductive portion. In this way, at least a part of the isolation body in the isolation structure is used as the conductive portion, which has the effect of improving the voltage distribution uniformity of the second electrode and reducing the static resistance voltage drop of the second electrode. At the same time, the material of the blocking portion is not limited.

[0008] In one embodiment, the blocking portion comprises an insulating material; preferably, the blocking portion comprises an inorganic insulating material. By providing the insulating blocking portion, adjacent light-emitting structures can be kept insulated from each other, and its structure is simple, facilitating the structural arrangement of the partition structure and the light-emitting structure. The blocking portion made of an inorganic insulating material can reduce the risk of water vapor leakage after the light-emitting structure is encapsulated.

[0009] In one embodiment, the display panel further comprises a pixel defining layer disposed on the substrate, the pixel defining layer defining a plurality of pixel openings spaced apart from each other, and at least a part of the light-emitting structure is located within the pixel openings; the partition structure is disposed on the pixel defining layer and located between at least some adjacent two pixel openings. Such a design enables the setting density of the partition structure to be flexibly adjusted according to usage requirements.

[0010] In one embodiment, the partition structure defines a first opening, the first opening is arranged in one-to-one correspondence with the pixel opening, and the orthographic projection of the pixel opening on the surface of the substrate is located within the orthographic projection of the first opening on the surface of the substrate; or the partition structure defines a first opening, the first opening corresponds to at least two pixel openings, and the orthographic projections of the at least two pixel openings on the surface of the substrate are both located within the orthographic projection of the corresponding first opening on the surface of the substrate. By reasonably setting the positional relationship between the partition structure and the pixel opening, the gap between the second electrodes can be adjusted according to usage requirements, and the effect of improving the voltage distribution uniformity of the second electrodes and reducing the static resistance voltage drop of the second electrodes can be achieved to the greatest extent.

[0011] In one embodiment, the substrate comprises an opening provided in the opening area, the opening penetrating through the substrate; a partition structure is further provided between the light-emitting structure and the opening area. Designed in this way, the partition structure can also effectively isolate water vapor and prevent water vapor from invading the light-emitting structure from the opening area, improving the packaging reliability of the display panel.

[0012] In one embodiment, a plurality of opening strengthening structures are further provided in the bridge area, and the plurality of opening strengthening structures are arranged around the opening area. By providing a plurality of opening strengthening structures surrounding the opening area in the bridge area, the structural strength of the substrate in the bridge area can be strengthened, its usage reliability can be improved, and the opening area can be isolated from the island area to prevent water vapor from invading the island area from the opening area, improving the packaging reliability of the display panel.

[0013] In one embodiment, a first opening is defined between two adjacent partition structures, and the light-emitting structure is disposed in the first opening; the display panel further comprises a packaging layer configured to package the light-emitting structure and the first opening and the packaging layer covers the top surface of the partition structure. The packaging layer can protect other structures in the display panel.

[0014] In one embodiment, the encapsulation layer includes a first sub-encapsulation layer and a second sub-encapsulation layer. The first sub-encapsulation layer is configured to encapsulate the first opening and covers a part of the top surface of the partition structure. The second sub-encapsulation layer is disposed on the side of the first sub-encapsulation layer away from the substrate, and the second sub-encapsulation layer covers the top surfaces of the first sub-encapsulation layer and the partition structure. By making the first sub-encapsulation layer only encapsulate the first opening defined by the partition structure, the stress concentration in the first sub-encapsulation layer is reduced, and its service performance is improved. By making the second sub-encapsulation layer cover the top surfaces of the first sub-encapsulation layer and the partition structure, a good protection effect is provided for the display panel.

[0015] According to another aspect of the present application, an embodiment of the present application further provides a method for manufacturing a display panel, including: forming a substrate having a plurality of island regions, a plurality of bridge regions, and a plurality of opening regions, the opening regions being disposed between two adjacent island regions, and two adjacent island regions being connected to each other through the bridge regions; forming a partition structure in the island regions of the substrate, the partition structure including a conductive portion; forming at least one light-emitting structure on both sides of the partition structure in the island regions, the light-emitting structure including a first electrode, a light-emitting functional layer, and a second electrode stacked, and the second electrode being electrically connected to the conductive portion.

[0016] By adopting the above manufacturing method, a partition structure is disposed between at least some adjacent light-emitting structures, and the second electrode of the light-emitting structure is electrically connected to the conductive portion of the partition structure. In this way, the second electrodes of the respective light-emitting structures in the display panel are integrally electrically connected through the conductive portion to form a full-surface electrode. The conductive portion can be used as an auxiliary electrode to improve the voltage distribution uniformity of the second electrode, reduce the static resistance voltage drop of the second electrode, reduce the power consumption of the display panel during use, and at the same time improve its display brightness uniformity, thereby improving the display effect of the display panel.

[0017] In one embodiment, the step of forming at least one light-emitting structure on both sides of the partition structure in the island region is realized by means of the partition structure and photolithography. With such a design, the arrangement density of the light-emitting structures can be improved, the display effect of the display panel can be improved, and non-uniformly arranged light-emitting structures can be easily fabricated to meet different usage requirements.

[0018] In one embodiment, the step of forming a partition structure on one side of the substrate specifically includes: forming a first partition material layer and a second partition material layer stacked on the substrate; patterning the first partition material layer and the second partition material layer to respectively form an isolation body and a blocking portion, and the orthographic projection of the isolation body on the substrate surface is located within the orthographic projection of the blocking portion on the substrate surface.

[0019] In one embodiment, the manufacturing method further includes: forming a partition structure between the light-emitting structure and the opening area. With such a design, the partition structure can also effectively isolate moisture, preventing moisture from invading the light-emitting structure from the opening area, and improving the packaging reliability of the display panel.

[0020] In one embodiment, the manufacturing method further includes: forming a plurality of partition structures surrounding the opening area in the bridge area. By arranging a plurality of partition structures surrounding the opening area in the bridge area, the opening area can be isolated from the island area, preventing moisture from invading the island area from the opening area, and improving the packaging reliability of the display panel.

[0021] According to another aspect of the present application, an embodiment of the present application further provides a display device, including: the display panel as described above.

[0022] In the above display device, by arranging a partition structure between at least some adjacent light-emitting structures of the display panel and electrically connecting the second electrode of the light-emitting structure to the conductive part of the partition structure, thus, the second electrodes of each light-emitting structure are integrally electrically connected through the conductive part to form a full-surface electrode. The conductive part can be used as an auxiliary electrode to improve the voltage distribution uniformity of the second electrode, reduce the static resistance voltage drop of the second electrode, reduce the power consumption during the use of the display panel, and at the same time improve its display brightness uniformity, thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a display panel provided by an embodiment of the present application.

[0024] Figure 2 It is a cross-sectional view of the structure of the display panel provided by an embodiment of the present application at Figure 1 A-A.

[0025] Figure 3 It is a cross-sectional view of the structure of the display panel provided by another embodiment of the present application at Figure 1 A-A.

[0026] Figure 4 It is a flowchart of the manufacturing method of the display panel provided by an embodiment of the present application.

[0027] Figure 5 It is a schematic diagram of the overall structure of the display device provided by an embodiment of the present application.

[0028] The reference numerals in the specific embodiments are as follows:

[0029] 10: Display device;

[0030] 100: Display panel;

[0031] 110: Substrate, 111: Opening;

[0032] 120: Light-emitting structure, 121: First electrode, 122: Light-emitting functional layer, 123: Second electrode;

[0033] 130: Partition structure, 131: Isolator, 132: Blocking portion, 133: First opening;

[0034] 140: Pixel definition layer, 141: Pixel opening;

[0035] 150: Encapsulation layer, 151: First sub-encapsulation layer, 152: Second sub-encapsulation layer;

[0036] AA: Island region, BA: Bridge region, HA: Opening region. Detailed implementation mode

[0037] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation mode of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0039] In addition, if these terms "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In this application, unless otherwise clearly defined and limited, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In this application, unless otherwise clearly defined and limited, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0043] In a stretchable display product in the related art, the thickness of its display cathode is very thin, and it is easy to form a patterned structure by digging holes in the opening area, resulting in a very large resistance of the display cathode and affecting the display effect. Further, water vapor easily invades the display area from the digging boundary of the opening area, resulting in the problem of package failure.

[0044] Figure 1 The overall structural schematic diagram of a display panel 100 provided by an embodiment of the present application is shown. Figure 2 The display panel 100 provided by an embodiment of the present application is shown in Figure 1 the structural cross-sectional view at A-A.

[0045] To at least partially solve the above problems, please refer to Figures 1 to 2, an embodiment of the present application provides a display panel 100. The display panel 100 includes a substrate substrate 110, a plurality of light-emitting structures 120, and a partition structure 130. The substrate substrate 110 has a plurality of island regions AA, a plurality of bridge regions BA, and a plurality of opening regions HA. The opening regions HA are disposed between two adjacent island regions AA, and two adjacent island regions AA are connected to each other through the bridge regions BA. The plurality of light-emitting structures 120 are disposed on one side of the substrate substrate 110 and located in the island regions AA. The light-emitting structure 120 includes a first electrode 121, a light-emitting functional layer 122, and a second electrode 123 stacked. The partition structure 130 is disposed in the island regions AA of the substrate substrate 110 and located between at least some adjacent light-emitting structures 120. The partition structure 130 includes a conductive portion; wherein, the second electrode 123 is electrically connected to the conductive portion.

[0046] Specifically, the substrate substrate 110 is used to support and carry other film layers in the display panel 100. Exemplarily, the substrate substrate 110 can be made of materials such as glass or polyimide (PI). In some embodiments, the substrate substrate 110 further includes an array substrate (not shown in the figure). A driving circuit for driving each light-emitting structure 120 to emit light is provided on the array substrate. Under the driving of the driving circuit, different light-emitting structures 120 can be excited to emit different colors of light, so that the display panel 100 can achieve a colorful display effect. The substrate substrate 110 is provided with a plurality of island regions AA for light emission, a plurality of opening regions HA for providing a stretching and deformation effect to the display panel 100, and bridge regions BA for configuring traces to connect each display region. The island regions AA include pixel units, and adjacent island regions AA are connected through the bridge regions BA.

[0047] As Figure 1 and Figure 2 shown, the display panel 100 of the embodiment of the present application can be a stretchable display panel. The substrate substrate 110 can be made of a flexible material (such as polyimide). The flexible substrate substrate 110 can be deformed under an external force to be in a stretched state. At the same time, since the substrate substrate 110 has a plurality of opening regions HA, an opening 111 is provided at the position of the opening region HA. The shape and size of the opening 111 are not limited. The opening 111 can reserve a certain space margin for the substrate substrate 110, so that the substrate substrate 110 can be deformed at the position of the bridge region BA. At this time, adjacent island regions AA are connected through the bridge regions BA.

[0048] A plurality of light-emitting structures 120 are disposed on one side of the substrate 110 and located in the island region AA. Exemplarily, the light-emitting structure 120 can be a red light-emitting structure, a green light-emitting structure, a blue light-emitting structure, a white light-emitting structure, etc., which is not limited herein. The plurality of light-emitting structures 120 are spaced relatively apart from each other. The light-emitting structure 120 can include a multi-layer structure. Exemplarily, the light-emitting structure 120 includes a first electrode 121, a light-emitting functional layer 122, and a second electrode 123 that are sequentially stacked on the substrate 110. Among them, one of the first electrode 121 and the second electrode 123 is an anode electrode, and the other is a cathode electrode. The light-emitting functional layer 122 emits light under the action of an electric field between the first electrode 121 and the second electrode 123. The light-emitting functional layer 122 can include a hole injection portion, a hole transport portion, a light-emitting portion, an electron transport portion, an electron injection portion, etc. that are stacked. The light-emitting structure 120 has a light-emitting side, and the light emitted by each light-emitting structure 120 can be observed facing its light-emitting side.

[0049] The partition structure 130 is disposed in the island region AA of the substrate 110, and the partition structure 130 is located between at least some adjacent light-emitting structures 120. That is, among the plurality of light-emitting structures 120, a partition structure 130 is provided between some adjacent two light-emitting structures 120, or a partition structure 130 is provided between each two adjacent light-emitting structures 120. The light emitted by each light-emitting structure 120 will be blocked by the partition structure 130 so as not to interfere with the light emitted by its adjacent light-emitting structure 120, avoiding signal crosstalk between adjacent light-emitting structures 120. The specific structural form of the partition structure 130 is not limited, as long as it can play the role of separating two adjacent light-emitting structures 120.

[0050] At the same time, the partition structure 130 includes a conductive portion. It can be that part of the structure in the partition structure 130 is made of a conductive material to form the conductive portion, or the entire partition structure 130 is made of a conductive material to form the conductive portion. Exemplarily, the conductive portion can be made of a metal or alloy material. The second electrode 123 of the light-emitting structure 120 is electrically connected to the conductive portion of the partition structure 130. In this way, the second electrodes 123 of each light-emitting structure 120 are integrally electrically connected through the conductive portion to form a whole-surface electrode. The conductive portion can be used as an auxiliary electrode to improve the voltage distribution uniformity of the second electrode 123 and reduce the static resistance voltage drop of the second electrode 123.

[0051] In the display panel 100 according to the embodiment of the present application, a partition structure 130 is provided between at least some adjacent light-emitting structures 120, and the second electrode 123 of the light-emitting structure 120 is electrically connected to the conductive portion of the partition structure 130. In this way, the second electrodes 123 of the respective light-emitting structures 120 are integrally electrically connected through the conductive portion to form a whole-surface electrode. The conductive portion can serve as an auxiliary electrode, improving the voltage distribution uniformity of the second electrode 123, reducing the static resistance voltage drop of the second electrode 123, reducing the power consumption during the use of the display panel 100, and at the same time improving the display brightness uniformity thereof, thereby improving the display effect of the display panel 100.

[0052] The specific structural form of the partition structure 130 is not limited. In some embodiments, for example Figure 2 As shown, optionally, the partition structure 130 includes an isolation body 131 and a blocking portion 132. The blocking portion 132 is located on the side of the isolation body 131 away from the substrate 110. The orthographic projection of the isolation body 131 on the surface of the substrate 110 is located within the orthographic projection of the blocking portion 132 on the surface of the substrate 110; the isolation body 131 includes a conductive portion.

[0053] That is, the partition structure 130 includes a relatively independent isolation body 131 and a blocking portion 132. Among them, the isolation body 131 is located on the substrate 110, and the blocking portion 132 is located on the side of the isolation body 131 away from the substrate 110. The area covered by the orthographic projection of the blocking portion 132 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the isolation body 131 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 132 on the substrate 110 can cover the orthographic projection of the isolation body 131 on the substrate 110. The cross-sectional shapes of the isolation body 131 and the blocking portion 132 can be regular figures, such as rectangles, triangles, etc., or can be irregular figures. In Figure 2 In the embodiment shown, the cross-sectional shapes of both the isolation body 131 and the blocking portion 132 are inverted trapezoids. In this way, at least a part of the isolation body 131 in the isolation structure is used as the conductive portion, achieving the effects of improving the voltage distribution uniformity of the second electrode 123 and reducing the static resistance voltage drop of the second electrode 123. At the same time, the material of the blocking portion 132 is not limited.

[0054] Based on the above embodiment, optionally, the blocking portion 132 includes an insulating material. The blocking portion 132 can be made of an inorganic insulating material or an organic insulating material. By providing the insulating blocking portion 132, adjacent light-emitting structures 120 can be kept insulated from each other, and its structure is simple, facilitating the structural arrangement of the partition structure 130 and the light-emitting structure 120. In some embodiments, preferably, the blocking portion 132 includes an inorganic insulating material. The blocking portion 132 made of an inorganic insulating material can reduce the risk of water vapor leakage after the light-emitting structure 120 is encapsulated.

[0055] To further avoid signal crosstalk between adjacent light-emitting structures 120, in some embodiments, optionally, the display panel 100 further includes a pixel definition layer 140 disposed on the substrate 110. The pixel definition layer 140 defines a plurality of pixel openings 141 spaced apart from each other, and the light-emitting structure 120 is at least partially located within the pixel openings 141; the partition structure 130 is disposed on the pixel definition layer 140 and is located between at least some adjacent pixel openings 141. Such a design enables the setting density of the partition structure 130 to be flexibly adjusted according to usage requirements.

[0056] The partition structure 130 is located between at least some adjacent light-emitting structures 120. As Figures 1 to 2 shown, in some embodiments, optionally, the partition structure 130 defines a first opening 133, and the first opening 133 is arranged in one-to-one correspondence with the pixel opening 141, and the orthographic projection of the pixel opening 141 on the surface of the substrate 110 is located within the orthographic projection of the first opening 133 on the surface of the substrate 110. The first openings 133 defined between two adjacent partition structures 130 are arranged in one-to-one correspondence with the pixel openings 141 defined by the pixel definition layer 140, that is, a partition structure 130 is provided between every two adjacent light-emitting structures 120 in the display panel 100.

[0057] In other embodiments, the partition structure 130 defines a first opening 133, and the first opening 133 corresponds to at least two pixel openings 141, and the orthographic projections of the at least two pixel openings 141 on the surface of the substrate 110 are both located within the orthographic projection of the corresponding first opening 133 on the surface of the substrate 110. The first openings 133 defined between two adjacent partition structures 130 correspond to the pixel openings 141 defined by at least two pixel definition layers 140, that is, a plurality of light-emitting structures 120 are spaced between two adjacent partition structures 130, and a partition structure 130 is not provided between some adjacent two light-emitting structures 120. With such a design, the setting density of the partition structure 130 can be flexibly adjusted according to usage requirements. By reasonably setting the positional relationship between the partition structure 130 and the pixel openings 141, the gap between the second electrodes 123 can be adjusted according to usage requirements, and the voltage distribution uniformity of the second electrodes 123 can be improved to the greatest extent, and the static resistance voltage drop of the second electrodes 123 can be reduced.

[0058] As described above, the base substrate 110 is provided with an opening 111 at the location of the opening area HA. The opening 111 can penetrate the base substrate 110. In this case, in order to at least partially solve the problem of water vapor in the display panel 100 easily invading the display area through the hole boundary of the opening area HA, thereby causing packaging failure, in some embodiments, a partition structure 130 is optionally provided between the light-emitting structure 120 and the opening area HA. With this design, the partition structure 130 can also effectively isolate water vapor, preventing water vapor from invading the light-emitting structure 120 from the opening area HA, thereby improving the packaging reliability of the display panel 100.

[0059] Furthermore, in some embodiments, the bridge area BA is further provided with multiple opening reinforcement structures, which are arranged around the opening area HA. By providing multiple opening reinforcement structures surrounding the opening area HA in the bridge area BA, the opening area HA can be isolated from the island area AA, preventing moisture from entering the island area AA from the opening area HA, thereby improving the packaging reliability of the display panel 100. It should be noted that the specific structural form of the opening reinforcement structure is not limited. To facilitate processing and manufacturing, in some embodiments, a structure similar to the partition structure 130 in the above embodiment can be used as the opening reinforcement structure. The partition structure 130 can also achieve the technical effect of isolating the opening area HA from the island area AA and preventing moisture from entering the island area AA from the opening area HA.

[0060] Figure 3 It shows that the display panel 100 provided by another embodiment of the present application is Figure 1 Structural cross-section view at AA in the middle.

[0061] like Figure 3 As shown, a first opening 133 is defined between two adjacent partition structures 130, and the light emitting structure 120 is disposed in the first opening 133. Figure 1 See also Figure 3 To enhance protection of the display panel 100, in some embodiments, the display panel 100 optionally further includes an encapsulation layer 150. The encapsulation layer 150 is configured to encapsulate the light-emitting structure 120 and the first opening, and the encapsulation layer 150 covers the top surface of the partition structure 130. The encapsulation layer 150 can protect other structures in the display panel 100.

[0062] The encapsulation layer 150 can be a single-layer structure or a multi-layer structure made of the same or different materials. In some embodiments, optionally, the encapsulation layer 150 includes a first sub-encapsulation layer 151 and a second sub-encapsulation layer 152. The first sub-encapsulation layer 151 is configured to encapsulate the light-emitting structure 120 and the first opening 133, and the first sub-encapsulation layer 151 covers a part of the top surface of the partition structure 130. The second sub-encapsulation layer 152 is disposed on a side of the first sub-encapsulation layer 151 facing away from the substrate, and the second sub-encapsulation layer 152 covers the top surfaces of the first sub-encapsulation layer 151 and the partition structure 130.

[0063] By making the first sub-encapsulation layer 151 encapsulate the first opening 133 defined by the light-emitting structure 120 and the partition structure 130, the stress concentration in the first sub-encapsulation layer 151 is reduced, and its service performance is improved. By making the second sub-encapsulation layer 152 cover the top surfaces of the first sub-encapsulation layer 151 and the partition structure 130, a good protection effect on the display panel 100 is achieved. Moreover, with such a design, it can also be ensured that the periphery of the light-emitting structure 120 is all inorganic substances (metal, silicon oxide, silicon nitride). The encapsulation failure of a single light-emitting structure 120 will not accelerate the outward overflow of water vapor to adjacent light-emitting structures 120. Therefore, only dark spots will be formed and no black spots will be formed, improving the display effect of the display panel 100.

[0064] Figure 4 The flowchart of the manufacturing method of the display panel 100 provided by an embodiment of the present application is shown.

[0065] Please combine Figures 1 to 3 and refer to Figure 4 , an embodiment of the present application also provides a manufacturing method of a display panel 100. The manufacturing method includes the following steps:

[0066] S102. Form a substrate substrate 110 having a plurality of island regions AA, a plurality of bridge regions BA, and a plurality of opening regions HA. The opening regions HA are disposed between two adjacent island regions AA, and two adjacent island regions AA are connected to each other through the bridge regions BA.

[0067] S104. Form a partition structure 130 in the island regions AA of the substrate substrate 110. The partition structure 130 includes a conductive portion.

[0068] S106. Form at least one light-emitting structure 120 on both sides of the partition structure 130 in the island regions AA. The light-emitting structure 120 includes a first electrode 121, a light-emitting functional layer 122, and a second electrode 123 stacked. The second electrode 123 is electrically connected to the conductive portion.

[0069] By using the manufacturing method of the embodiments of the present application, a partition structure 130 is provided between at least some adjacent light-emitting structures 120, and the second electrode 123 of the light-emitting structure 120 is electrically connected to the conductive part of the partition structure 130. In this way, the second electrodes 123 of the respective light-emitting structures 120 in the display panel 100 are integrally electrically connected through the conductive part to form a whole-surface electrode. The conductive part can serve as an auxiliary electrode, improving the voltage distribution uniformity of the second electrode 123, reducing the static resistance voltage drop of the second electrode 123, reducing the power consumption during the use of the display panel 100, and at the same time improving the display brightness uniformity, thereby enhancing the display effect of the display panel 100.

[0070] In some embodiments, optionally, step S106 is implemented by means of a partition structure and a photolithography method.

[0071] By using this manufacturing method to manufacture the display panel 100, a higher transmittance can be achieved at low cost, enabling the partition structure 130 to play the role of "intelligent patterning", and no additional mask is required, reducing the production cost. Moreover, during the formation of the light-emitting structure 120, since the light-emitting structure 120 is isolated by the partition structure 130, no mask is needed, and there will be no color mixing defects caused by evaporation, improving the yield and reducing the cost. Further, by using this manufacturing method, the arrangement density of the light-emitting structures 120 can also be increased, improving the display effect of the display panel 100, and non-uniformly arranged light-emitting structures 120 can be easily manufactured to meet different usage requirements.

[0072] As described in the above embodiments, the specific structural form of the partition structure 130 is not limited. In some embodiments, the partition structure 130 includes an isolation body 131 and a blocking part 132. At this time, step S104 specifically includes: forming a first partition material layer and a second partition material layer stacked on the substrate 110; patterning the first partition material layer and the second partition material layer to form the isolation body 131 and the blocking part 132 respectively, and the orthographic projection of the isolation body 131 on the surface of the substrate 110 is located within the orthographic projection of the blocking part 132 on the surface of the substrate 110.

[0073] In some embodiments, optionally, the manufacturing method of the display panel 100 of the present application further includes the following steps:

[0074] S108. Form a partition structure 130 between the light-emitting structure 120 and the opening area HA. With such a design, the partition structure 130 can also effectively isolate moisture, preventing moisture from entering the light-emitting structure 120 from the opening area HA, and improving the packaging reliability of the display panel 100.

[0075] In some embodiments, optionally, the manufacturing method of the display panel 100 of the present application further includes the following steps:

[0076] S110. In the bridge area BA, a plurality of partition structures 130 are formed surrounding the opening area HA. By providing a plurality of partition structures 130 surrounding the opening area HA in the bridge area BA, the opening area HA can be isolated from the island area AA, preventing water vapor from invading the island area AA from the opening area HA, and improving the encapsulation reliability of the display panel 100.

[0077] Figure 5 FIG. 4 shows a schematic diagram of the overall structure of a display device 10 provided by an embodiment of the present application.

[0078] Please refer to Figures 1 to 3 and also refer to Figure 5 , an embodiment of the present application further provides a display device 10, which includes a display panel 100 as in any of the above embodiments.

[0079] The display panel 100 disclosed in the embodiments of the present application is applied to the display device 10 to provide a function of displaying a picture. The display device 10 can be any product or component with a display function, including but not limited to mobile phones, tablet computers, laptop computers, e-readers, wearable devices, remote controls, televisions, desktop computers, vehicle-mounted devices, etc. In the display device 10 of the embodiments of the present application, a partition structure 130 is provided between at least some adjacent light-emitting structures 120 of the display panel 100, and the second electrode 123 of the light-emitting structure 120 is electrically connected to the conductive part of the partition structure 130. Thus, the second electrodes 123 of the respective light-emitting structures 120 are integrally electrically connected through the conductive part to form a whole-surface electrode. The conductive part can be used as an auxiliary electrode to improve the voltage distribution uniformity of the second electrode 123, reduce the static resistance voltage drop of the second electrode 123, reduce the power consumption during the use of the display panel 100, and at the same time improve the display brightness uniformity, thereby improving the display effect of the display panel 100.

[0080] Regarding related solutions of the isolation structure (also referred to as the partition structure, etc.), in patents (applications) PCT / CN2023 / 134518, CN202310619767.1, CN202310492119.4, CN202311346196.5, CN202310775778.9, etc., their structures, materials, and preparation methods are described, and the content is incorporated into the present application by reference.

[0081] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0082] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A display panel, characterized in that, Comprising: A substrate, having a plurality of island regions, a plurality of bridge regions, and a plurality of opening regions, the opening regions being disposed between two adjacent island regions, and two adjacent island regions being connected to each other through the bridge regions; A plurality of light-emitting structures, disposed on one side of the substrate and located in the island regions, the light-emitting structures including a first electrode, a light-emitting functional layer, and a second electrode stacked; And A partition structure, disposed in the island regions of the substrate and located between at least some adjacent light-emitting structures, the partition structure including a conductive portion; Wherein, the second electrode is electrically connected to the conductive portion.

2. The display panel according to claim 1, wherein The partition structure includes an isolation body and a blocking portion, the blocking portion being located on a side of the isolation body away from the substrate, and a projection of the isolation body on the surface of the substrate is located within a projection of the blocking portion on the surface of the substrate; The isolation body includes the conductive portion.

3. The display panel according to claim 2, wherein The blocking portion includes an insulating material; Preferably, the blocking portion includes an inorganic insulating material.

4. The display panel according to claim 1, wherein The display panel further includes a pixel defining layer, the pixel defining layer being disposed on the substrate, the pixel defining layer defining a plurality of pixel openings spaced apart from each other, and at least a part of the light-emitting structure being located within the pixel openings; The partition structure is disposed on the pixel defining layer and located between at least some adjacent two pixel openings.

5. The display panel according to claim 4, wherein, The partition structure defines a first opening, the first opening being provided in one-to-one correspondence with the pixel opening, and a projection of the pixel opening on the surface of the substrate is located within a projection of the first opening on the surface of the substrate; Or The partition structure defines a first opening, the first opening being provided in correspondence with at least two pixel openings, and projections of the at least two pixel openings on the surface of the substrate are both located within a projection of the corresponding first opening on the surface of the substrate.

6. The display panel according to claim 1, characterized in that, The substrate includes an opening provided in the opening region, the opening penetrating through the substrate; The partition structure is further provided between the light-emitting structure and the opening region.

7. The display panel according to claim 1, characterized in that, The bridge region is further provided with a plurality of opening strengthening structures, and the plurality of opening strengthening structures are disposed around the opening region.

8. The display panel according to claim 1, wherein A first opening is defined between two adjacent partition structures, and the light-emitting structure is disposed in the first opening; The display panel further includes a packaging layer, the packaging layer being configured to package the light-emitting structure and the first opening and the packaging layer covering a top surface of the partition structure.

9. The display panel according to claim 8, wherein, The packaging layer includes a first sub-packaging layer and a second sub-packaging layer, the first sub-packaging layer being configured to package the first opening and the first sub-packaging layer covering a part of the top surface of the partition structure, the second sub-packaging layer being disposed on a side of the first sub-packaging layer away from the substrate, and the second sub-packaging layer covering the first sub-packaging layer and the top surface of the partition structure; Preferably, the first sub-packaging layer is an inorganic material layer, and the second sub-packaging layer is an organic material layer.

10. A method for manufacturing a display panel, characterized in that, Comprising: Forming a substrate having a plurality of island regions, a plurality of bridge regions, and a plurality of opening regions, the opening regions being disposed between two adjacent island regions, and two adjacent island regions being connected to each other through the bridge regions; A partition structure is formed in the island region of the substrate, and the partition structure includes a conductive portion; At least one light-emitting structure is formed on each side of the partition structure in the island region. The light-emitting structure includes a first electrode, a light-emitting functional layer, and a second electrode stacked, and the second electrode is electrically connected to the conductive portion.

11. The manufacturing method of the display panel according to claim 10, wherein The step of forming at least one light-emitting structure on each side of the partition structure in the island region is realized by means of the partition structure and photolithography.

12. The manufacturing method of the display panel according to claim 10, characterized in that, The step of forming a partition structure on one side of the substrate specifically includes: A first partition material layer and a second partition material layer are formed on the substrate in a stacked manner; The first partition material layer and the second partition material layer are patterned to form a separator and a blocking portion respectively. The orthographic projection of the separator on the surface of the substrate is located within the orthographic projection of the blocking portion on the surface of the substrate.

13. The manufacturing method of the display panel according to claim 10, wherein The manufacturing method further includes: Forming the partition structure between the light-emitting structure and the opening region.

14. The manufacturing method of the display panel according to claim 10, characterized in that The manufacturing method further includes: Forming a plurality of the partition structures surrounding the opening region in the bridge region.

15. A display device, characterized in that, Including: A display panel according to any one of claims 1 to 9.

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