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 is provided with a first area, a second area and a display area, the second area surrounds at least part of the first area, the display area surrounds at least part of the second area, the display panel comprises a substrate, a first partition structure and a conductive layer, the first partition structure is arranged on one side of the substrate and located in the second area, and the conductive layer is arranged on the first partition structure. The first partition structure comprises a conductive part, the conductive layer is arranged on one side of the substrate and located on the side, close to the first area, of the first partition structure, and the conductive layer is in lap joint with the conductive part. According to the display panel, the first partition structure is arranged in the second area, the film layer capable of forming a water vapor transmission channel is partitioned, and the problem that water vapor enters the display area and corrodes the display area is avoided. Meanwhile, the conductive layer is arranged on the side, close to the first area, of the first partition structure, and the conductive layer is in lap joint with the conductive part of the first partition structure, so that the conductive layer can conduct edge static electricity of the first area, and static electricity testing can be conveniently conducted on the product.

Description

Technical Field

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

[0002] With the development of display technology, OLED (Organic Light Emitting Display) display panels have been widely used due to their advantages such as lighter weight, higher brightness, lower power consumption, faster response and higher definition.

[0003] However, current display panels leave much to be desired. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a manufacturing method thereof, and a display device to address the above problems.

[0005] According to one aspect of the present application, an embodiment of the present application provides a display panel, the display panel having a first area, a second area and a display area, the second area surrounds at least a portion of the first area, the display area surrounds at least a portion of the second area, the display panel includes: a substrate; a first partition structure, arranged on one side of the substrate and located in the second area, the first partition structure including a conductive portion; and a conductive layer, arranged on one side of the substrate and located on a side of the first partition structure close to the first area, the conductive layer overlapping the conductive portion.

[0006] The above-mentioned display panel, by setting a first partition structure in the second area, isolates the film layer that can form a water vapor transmission channel, thereby preventing water vapor from entering the display area and causing corrosion thereto. At the same time, a conductive layer is set on the side of the first partition structure close to the first area, and the conductive layer is overlapped with the conductive part of the first partition structure, so that the conductive layer can conduct the edge static electricity of the first area, which is convenient for electrostatic testing of the product.

[0007] In one embodiment, the side wall of the first partition structure near the first region has a recessed region; optionally, the cross section of the first partition structure is in an inverted trapezoidal or I-shaped shape, and the cross section of the first partition structure is perpendicular to the substrate; optionally, the first partition structure further includes a blocking portion, the blocking portion is located on the side of the conductive portion away from the substrate, the side wall of the conductive portion near the first region is recessed relative to the side wall of the blocking portion near the first region, and the orthographic projection of the conductive portion on the substrate is located within the orthographic projection of the blocking portion on the substrate; optionally, the blocking portion is a conductive material. Such a design facilitates the overlap of the conductive layer with the conductive portion in the first partition structure, and no mask is required in the production process of the conductive layer, thereby reducing production costs.

[0008] In one embodiment, the conductive layer includes a main body and a protruding portion, the main body surrounds the first area and is spaced apart from the first area, and the protruding portion is connected to a side of the main body facing the first area; optionally, there are multiple protruding portions, and the multiple protruding portions are spaced apart around the center of the first area. With such a design, the protruding portion can further enhance the conductive effect of the conductive layer on the static electricity at the edge of the first area.

[0009] In one embodiment, the display panel further includes a connecting line, a first end of the connecting line is electrically connected to the first partition structure, and a second end of the connecting line is located in the display area; the connecting line is used to transmit a DC potential; optionally, the connecting line is used to transmit a positive DC potential or a negative DC potential or a zero potential; optionally, the second area is located between the first area and the display area; optionally, the first area is an opening area; the second area is a transition area; optionally, the conductive layer covers the entire area between the first partition structure and the first area. By setting the connecting line to be connected to different signal lines in the display area to transmit different potential signals, and making the conductive layer cover the entire area between the first partition structure and the first area, the conductivity of the conductive layer can be maximized, and the effect of conducting the edge static electricity of the first area is good.

[0010] In one embodiment, the display panel further includes a light-emitting functional layer, a second partition structure and a first electrode layer located in the display area. The light-emitting functional layer is arranged on one side of the substrate, and the light-emitting functional layer includes a plurality of light-emitting functional parts arranged at intervals from each other. The second partition structure is located between at least partially adjacent light-emitting functional parts, and the first electrode layer is arranged on the side of the light-emitting functional layer away from the substrate; optionally, the first electrode layer is separated by means of the second partition structure. By arranging the second partition structure between at least partially adjacent light-emitting functional parts in the display area, no mask is required in the production process of the light-emitting functional layer, thereby reducing the production cost. Further, the first electrode layer is separated by the second partition structure, so that the first electrode layer includes a plurality of first electrode parts separated by means of the partition structure. In this way, the structural integrity of the first electrode layer is reduced, so that the plurality of first electrode parts in the first electrode layer can independently perform stress distribution diffusion, thereby reducing the overall stress concentration of the first electrode layer. In addition, no mask is required in the production process of the display panel, and poor color mixing due to evaporation will not occur, the yield is improved, and the cost is reduced.

[0011] In one of the embodiments, the display panel further comprises a cushion layer, the cushion layer is arranged in the same layer with at least part of the light-emitting functional layer, and the conductive layer is arranged on the side of the cushion layer away from the substrate; optionally, the cushion layer is located on the side of the first partition structure close to the first zone; optionally, the cushion layer and the light-emitting functional layer are arranged at intervals; the first partition structure and the light-emitting functional layer are arranged at intervals; optionally, the light-emitting functional layer includes light-emitting functional layers of multiple colors, and the cushion layer and the light-emitting functional layer of one color are arranged in the same layer and made of the same material; optionally, the conductive layer and at least part of the first electrode layer are arranged in the same layer; optionally, the conductive layer and at least part of the first electrode layer are arranged in the same layer and made of the same material. With such a design, the cushion layer can support the conductive layer, improve its stress condition, and facilitate the close overlap between the conductive layer and the conductive part. In addition, the cushion layer and the light-emitting functional layer are arranged in the same layer and made of the same material, so that the two can be made of the same material in the same step, which simplifies the production steps and improves the production efficiency.

[0012] In one embodiment, the first partition structure also includes a blocking portion, which is located on the side of the conductive portion facing away from the substrate; the second isolation structure includes a first film layer and a second film layer stacked, the first film layer is arranged on the same layer as the conductive portion, and the second film layer is arranged on the same layer as the blocking portion; optionally, the first film layer is arranged on the same layer as the conductive portion and is made of the same material, and the second film layer is arranged on the same layer as the blocking portion and is made of the same material. By arranging the first film layer on the same layer as the conductive portion and the second film layer on the same layer as the blocking portion, the production of the first partition structure and the second partition structure is facilitated. In addition, the first partition structure and the second partition structure can be produced using the same material in the same step, which simplifies the production steps and improves production efficiency.

[0013] According to another aspect of the present application, an embodiment of the present application further provides a display device, including: according to the display panel and photosensitive element as described above, the photosensitive element is used to collect light passing through the first area.

[0014] The above-mentioned display device, by setting a first partition structure in the second area, isolates the film layer that can form a water vapor transmission channel, thereby preventing water vapor from entering the display area and corroding it. At the same time, a conductive layer is set on the side of the first partition structure close to the first area, and the conductive layer is overlapped with the conductive part of the first partition structure, so that the conductive layer can conduct the edge static electricity of the first area, which is convenient for electrostatic testing of the product.

[0015] According to another aspect of the present application, an embodiment of the present application also provides a method for manufacturing a display panel, including: providing a substrate, the substrate including a first supporting area and a second supporting area surrounding at least part of the first supporting area; forming a first partition structure in the second supporting area on the substrate, the first partition structure including a conductive portion; forming a conductive layer on a side of the first partition structure close to the first supporting area, the conductive layer overlapping the conductive portion.

[0016] In one embodiment, the display panel has a first area corresponding to the first supporting area, a second area corresponding to the second supporting area, and a display area, the second area surrounds at least a portion of the first area, and the display area surrounds at least a portion of the second area, and the method further includes:

[0017] forming a first film layer structure on the substrate, and performing an etching process on the first film layer structure to form a first partition structure in the second area and a second partition structure in the display area; the second area is located between the display area and the first area;

[0018] And / or, the method further comprises:

[0019] A second film layer structure and a third film layer structure which are stacked in sequence in a direction away from the substrate are sequentially formed on the substrate, and the second film layer structure and the third film layer structure are etched to form the conductive layer on the side of the first partition structure close to the first area, the first electrode layer in the display area, the cushion layer on the side of the first partition structure close to the first area, and the light-emitting functional layer in the display area; the conductive layer is arranged on the side of the cushion layer away from the substrate; the first electrode layer is arranged on the side of the light-emitting functional layer away from the substrate; the second film layer structure is used to form the conductive layer and the first electrode layer, and the third film layer structure is used to form the light-emitting functional layer and the cushion layer;

[0020] And / or, the method further comprises:

[0021] The display panel is cut to form an opening area corresponding to the first supporting area and a transition area corresponding to the second supporting area, the conductive layer is located between the first partition structure and the opening area and extends to the opening area, and the opening area penetrates the conductive layer.

[0022] The above-mentioned method for manufacturing a display panel, by providing a first partition structure in the second support area of ​​the substrate, isolates the film layer that can form a water vapor transmission channel, thereby preventing water vapor from entering the display area and causing corrosion thereto. At the same time, a conductive layer is formed on the side of the first partition structure close to the first area, and the conductive layer is overlapped with the conductive part of the first partition structure, so that the conductive layer can conduct the edge static electricity of the first area, which is convenient for electrostatic testing of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1a A schematic diagram of the overall structure of a display panel before cutting provided in one embodiment of the present application.

[0024] Figure 1b A schematic diagram of the overall structure of a display panel after cutting provided by one embodiment of the present application.

[0025] Figure 2 A schematic diagram of the structure of a partition structure and a conductive layer in a display panel provided in one embodiment of the present application at another viewing angle.

[0026] Figure 3 A schematic structural diagram of a partition structure and a conductive layer in a display panel provided in another embodiment of the present application at another viewing angle.

[0027] Figure 4a A schematic diagram of the overall structure of a display panel before cutting provided in another embodiment of the present application.

[0028] Figure 4b A schematic diagram of the overall structure of a display panel after cutting provided in another embodiment of the present application.

[0029] Figure 5 A schematic diagram of the overall structure of a display device provided in one embodiment of the present application.

[0030] Figure 6 A flow chart of a method for manufacturing a display panel provided in one embodiment of the present application.

[0031] The reference numerals in the specific implementation manner are as follows:

[0032] 10: display device;

[0033] 100: display panel;

[0034] 110: substrate;

[0035] 120: first partition structure, 121: conductive part, 122: blocking part;

[0036] 130: conductive layer, 131: main body, 132: protruding portion;

[0037] 140: light-emitting functional layer, 141: light-emitting functional part;

[0038] 150: second partition structure, 151: first film layer, 152: second film layer;

[0039] 160: first electrode layer, 161: first electrode portion;

[0040] 170: pixel defining layer, 171: pixel opening;

[0041] 180: second electrode layer, 181: second electrode portion;

[0042] 190: cushion layer;

[0043] VA1: first area, VA2: second area, AA: display area, L1: cutting line. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0050] Figure 1a This is a schematic diagram of the overall structure of a display panel 100 before cutting provided in one embodiment of the present application. Figure 1b This is a schematic diagram of the overall structure of a display panel 100 after cutting provided by an embodiment of the present application. Figure 2 A schematic structural diagram of a partition structure and a conductive layer 130 in a display panel 100 provided in an embodiment of the present application at another viewing angle.

[0051] See also Figure 1a to Figure 2 The embodiment of the present application provides a display panel 100, which has a first area VA1, a second area VA2 and a display area AA, wherein the second area VA2 surrounds at least a portion of the first area VA1, and the display area AA surrounds at least a portion of the second area VA2. The display panel 100 includes a substrate 110, a first partition structure 120 and a conductive layer 130. The first partition structure 120 is disposed on one side of the substrate 110 and is located in the second area VA2. The first partition structure 120 includes a conductive portion 121. The conductive layer 130 is disposed on one side of the substrate 110 and is located on a side of the first partition structure 120 close to the first area VA1, and the conductive layer 130 overlaps the conductive portion 121. The light transmittance of the first area VA1 may be greater than that of the display area AA.

[0052] The display panel 100 has a first area VA1, a second area VA2 and a display area AA. The first area VA1 and the second area VA2 are areas with different functions outside the display area AA. For example, the first area VA1 can be used as an area on the substrate 110 for operations such as digging holes or grooving, and the second area VA2 can be used as an area for transition between the first area VA1 and the display area AA. The specific position of the first area VA1 on the substrate 110, the shape of the first area VA1, the size of the first area VA1, etc. are set according to the actual needs of digging holes or grooving, and are not limited here. The second area VA2 surrounds the first area VA1, and the display area AA surrounds the second area VA2, that is, the second area VA2 surrounds the first area VA1, and the second area VA2 is set around the first area VA1. At the same time, the display area AA surrounds the second area VA2, and the display area AA is set around the second area VA2. The second area VA2 connects the first area VA1 and the display area AA. The display area AA is an area in the display panel 100 for arranging light-emitting components to realize the light-emitting function. The transition between the display area AA and the first area VA1 can be realized with the help of the second area VA2. Similar to the first area VA1, the shape, size, etc. of the display area AA and the second area VA2 are set according to actual use requirements and are not limited here. Figure 1a After cutting the structure in the second area VA2 (such as the conductive layer 130 and the substrate 110) along the cutting line L1, the structure shown in FIG. Figure 1b It should be noted that, in some embodiments, only the conductive layer 130 in the second area VA2 may be cut along the cutting line L1 without cutting the substrate 110, so as to obtain the display panel 100 in other embodiments.

[0053] The substrate 110 is used to support and carry other film layers in the display panel 100. For example, the substrate 110 can be made of materials such as glass and polyimide (PI). A driving circuit layer can also be provided on the substrate 110, and the driving circuit layer can include thin film transistors, etc. The first partition structure 120 is provided on one side of the substrate 110 and is located in the second area VA2. The first partition structure 120 is used to isolate the film layer that can form a water vapor transmission channel. Therefore, the first partition structure 120 can be arranged around the first area VA1. In this way, the water vapor entering the display panel 100 from the first area VA1 cannot enter the display area AA along the water vapor transmission channel. The first partition structure 120 can be completely located in the second area VA2, or it can be partially located in the second area VA2 and partially located in the display area AA. The specific structural form of the first partition structure 120 is not limited, as long as it can play the role of isolating the film layer that forms the water vapor transmission channel. The first partition structure 120 includes a conductive portion 121, that is, in some embodiments, the first partition structure 120 may include different parts made of a variety of different materials, including a conductive portion 121 made of conductive material and an insulating portion made of insulating material. In other embodiments, the first partition structure 120 may be made entirely of conductive materials, so that the first partition structure 120 as a whole is conductive.

[0054] like Figure 2 As shown, by overlapping the conductive layer 130 located on the side of the first partition structure 120 close to the first area VA1 and the conductive part 121, the edge of the first area VA1 can be electrostatically guided to the conductive part 121 of the first partition structure 120 through the conductive layer 130, and further guided to other desired locations with the help of leads connected to the conductive part 121, so as to perform electrostatic testing on the product.

[0055] The display panel 100 of the embodiment of the present application is provided with a first partition structure 120 in the second area VA2 to partition the film layer that can form a water vapor transmission channel, thereby preventing water vapor from entering the display area AA and causing corrosion thereto. At the same time, a conductive layer 130 is provided on the side of the first partition structure 120 close to the first area VA1, and the conductive layer 130 is overlapped with the conductive portion 121 of the first partition structure 120, so that the conductive layer 130 can conduct the edge static electricity of the first area VA1, which is convenient for electrostatic testing of the product.

[0056] The specific structural form of the first partition structure 120 is not limited. In order to facilitate the overlap between the conductive layer 130 and the conductive portion 121 of the first partition structure 120, in some embodiments, the side wall of the first partition structure 120 close to the first area VA1 has a recessed area, and the conductive layer 130 can be overlapped to the recessed area to achieve overlap with the conductive portion 121. The cross-sectional shape of the first partition structure 120 can be any regular or irregular shape. In order to facilitate its processing and manufacturing, for example, Figure 1a , Figure 1b As shown, the cross section of the first partition structure 120 is inverted trapezoidal or I-shaped, and the cross section of the first partition structure 120 is perpendicular to the substrate 110, that is, the first partition structure 120 with an inverted trapezoidal or I-shaped cross section can be formed on the substrate 110 in a direction perpendicular to its surface.

[0057] In some embodiments, in addition to the conductive portion 121, the first partition structure 120 also includes a blocking portion 122, the blocking portion 122 is located on the side of the conductive portion 121 facing away from the substrate 110, the side wall of the conductive portion 121 close to the first area VA1 is recessed relative to the side wall of the blocking portion 122 close to the first area VA1, and the orthographic projection of the conductive portion 121 on the substrate 110 is located within the orthographic projection of the blocking portion 122 on the substrate 110.

[0058] That is, the first partition structure 120 includes a relatively independent conductive portion 121 and a blocking portion 122, wherein the conductive portion 121 is located on the substrate 110, and the blocking portion 122 is located on the side of the conductive portion 121 away from the substrate 110, and the area covered by the orthographic projection of the blocking portion 122 on the substrate 110 is relatively large, while the area covered by the orthographic projection of the conductive portion 121 on the substrate 110 is relatively small, so that the orthographic projection of the blocking portion 122 on the substrate 110 can cover the orthographic projection of the conductive portion 121 on the substrate 110. The cross-sectional shapes of the conductive portion 121 and the blocking portion 122 can be regular shapes, such as rectangles, triangles, etc., or irregular shapes. Figure 1a , Figure 1b In the embodiment shown, the cross-sectional shapes of the conductive portion 121 and the blocking portion 122 are both inverted trapezoidal. With such a design, a mask is not required in the manufacturing process of the conductive layer 130, thereby reducing the production cost. In some embodiments, the blocking portion 122 is a conductive material, and the first partition structure 120 is conductive as a whole, which facilitates the electrostatic test after the edge of the first area VA1 is electrostatically guided to the first partition structure 120.

[0059] Figure 3 A schematic structural diagram of a partition structure and a conductive layer 130 in a display panel 100 provided in another embodiment of the present application at another viewing angle.

[0060] The conductive layer 130 may cover the area between the first partition structure 120 and the first area VA1. Figure 1aand Figure 3 In some embodiments, optionally, the conductive layer 130 includes a main body 131 and a protruding portion 132, the main body 131 surrounds the first area VA1 and is spaced apart from the first area 131, and the protruding portion 132 is connected to the side of the main body 131 facing the first area VA1. That is, the main body 131 of the conductive layer 130 covers a portion of the area between the first partition structure 120 and the first area VA1, and the protruding portion 132 of the conductive layer 130 is connected to the side of the main body 131 facing the first area VA1. Both the main body 131 and the protruding portion 132 are conductive along with the conductive layer 130. Such a design can enhance the conductive effect of the conductive layer 130 on the edge static electricity of the first area VA1.

[0061] See also Figure 3 Optionally, there are multiple protrusions 132, and the multiple protrusions 132 are arranged at intervals around the center of the first area VA1. The specific number of protrusions 132 is not limited, and the multiple protrusions 132 can be arranged unevenly or evenly around the center of the first area VA1. In this case, the angles between any two adjacent protrusions 132 are equal. The multiple protrusions 132 can serve as multiple "contacts" to conduct the edge static electricity of the first area VA1.

[0062] The conductive layer 130 is located between the first partition structure 120 and the first area VA1. Figure 2 As shown, the conductive layer 130 is a ring structure, and the conductive layer 130 covers the entire area between the first partition structure 120 and the first area VA1, so that the conductivity of the conductive layer 130 can be improved to the greatest extent, and the effect of conducting the edge static electricity of the first area VA1 is good. Figure 3 In the illustrated embodiment, the protrusion 132 in the conductive layer 130 may be a strip structure extending from the first partition structure 120 to the first area VA1 in any direction. In this case, the conductive layer 130 only covers a portion of the area between the first partition structure 120 and the first area VA1.

[0063] In addition to the first partition structure 120 being overlapped with the conductive layer 130 through its conductive portion 121 to conduct the edge static electricity of the first area VA1, in some embodiments, the display panel 100 further includes a connecting line (not shown in the figure), the first end of the connecting line is electrically connected to the first partition structure 120, the second end of the connecting line is located in the display area AA, the connecting line is used to transmit a DC potential, and the connecting line is configured to be connected to different signal lines in the display area AA to transmit different potential signals. Exemplarily, the connecting line is used to transmit a positive DC potential or a negative DC potential or a zero potential.

[0064] The first area VA1 and the second area VA2 are areas with different functions outside the display area AA. Optionally, the second area VA2 is located between the first area VA1 and the display area AA. The first area VA1 may be an opening area, and the second area VA2 may be a transition area. Based on this embodiment, further, the conductive layer 130 covers the entire area between the first partition structure 120 and the first area VA1. This design can maximize the conductivity of the conductive layer 130 and has a good effect of conducting the edge static electricity of the first area VA1.

[0065] The display area AA of the display panel 100 is used to display images. Therefore, in some embodiments, optionally, the display panel 100 also includes a light-emitting functional layer 140, a second partition structure 150 and a first electrode layer 160 located in the display area AA. The light-emitting functional layer 140 is arranged on one side of the substrate 110. The light-emitting functional layer 140 includes a plurality of light-emitting functional parts 141 arranged at intervals from each other. The second partition structure 150 is located between at least partially adjacent light-emitting functional parts 141. The first electrode layer 160 is arranged on the side of the light-emitting functional layer 140 away from the substrate 110. The first electrode layer 160 is separated by means of the second partition structure 150.

[0066] The light-emitting functional layer 140 includes a plurality of light-emitting functional parts 141 spaced apart from each other. For example, the light-emitting functional part 141 may be a red light-emitting functional part, a green light-emitting functional part, a blue light-emitting functional part, or a white light-emitting functional part, etc., which is not limited here. Specifically, the light-emitting functional part 141 may include a multilayer structure. For example, the light-emitting functional part 141 includes one or more of a hole injection part, a hole transport part, an electron blocking part, a light-emitting part, a hole blocking part, an electron transport part, and an electron injection part that are stacked.

[0067] The first electrode layer 160 may be an anode electrode or a cathode electrode. The first electrode layer 160 includes a plurality of first electrode portions 161 separated by a second partition structure 150. The display panel 100 of the embodiment of the present application may also include a second electrode layer 180. The second electrode layer 180 is disposed on the side of the light-emitting functional layer 140 facing the substrate 110. The second electrode layer 180 includes a plurality of second electrode portions 181 spaced apart from each other. The second electrode layer 180 may be a cathode electrode or an anode electrode. The light-emitting functional portion 141 emits light under the joint action of the first electrode portion 161 and the second electrode portion 181, that is, under the joint action of the anode electrode and the cathode electrode. The display panel 100 may include a plurality of light-emitting devices. The light-emitting devices include a second electrode portion 181, a light-emitting functional portion 141, and a first electrode portion 161, which are located on the substrate 110 and are sequentially stacked in a direction away from the substrate 110.

[0068] The display panel 100 further includes a second partition structure 150, which is located between at least some adjacent light-emitting functional parts 141, that is, among the plurality of light-emitting functional parts 141, a second partition structure 150 is provided between some adjacent two light-emitting functional parts 141, or a second partition structure 150 is provided between every two adjacent light-emitting functional parts 141, and the light emitted by each light-emitting functional part 141 will be shielded by the second partition structure 150 so as not to interfere with the light emitted by the adjacent light-emitting functional part 141, thereby avoiding signal crosstalk between adjacent light-emitting functional parts 141. The specific structural form of the second partition structure 150 is not limited, as long as it can play the role of isolating two adjacent light-emitting functional parts 141.

[0069] The second partition structure 150 can have the same structure as the first partition structure 120. In this case, the first partition structure 120 is partially located in the second area VA2 and partially located in the display area AA, so that one side of the first partition structure 150 is used to overlap with the conductive layer 130, and the other side of the first partition structure 150 is used to isolate the light-emitting functional layer 140 and the first electrode layer 160, thereby improving the space utilization in the display panel 100.

[0070] In order to further avoid signal crosstalk between adjacent light-emitting functional parts 141, in some embodiments, optionally, the display panel 100 also includes a pixel defining layer 170, and the pixel defining layer 170 is disposed on the substrate 110, and the pixel defining layer 170 defines a plurality of pixel openings 171 spaced apart from each other, and the light-emitting functional part 141 is at least partially located in the pixel opening 171, and the second partition structure 150 is disposed on the pixel defining layer 170 and is located between at least partially two adjacent pixel openings 171.

[0071] By providing the second partition structure 150 between at least part of the adjacent light-emitting functional parts 141 in the display area AA, a mask is not required in the manufacturing process of the light-emitting functional layer 140, thereby reducing the production cost. In some embodiments, optionally, the first electrode layer 160 is also separated by means of the second partition structure 150, and the first electrode layer 160 is separated by the second partition structure 150, so that the first electrode layer 160 includes a plurality of first electrode parts 161 separated by means of the partition structure, thereby reducing the structural integrity of the first electrode layer 160, so that the plurality of first electrode parts 161 in the first electrode layer 160 can independently diffuse stress, thereby reducing the overall stress concentration of the first electrode layer 160. In addition, a mask is not required in the manufacturing process of the display panel 100, and poor color mixing due to evaporation will not occur, thereby improving the yield and reducing the cost.

[0072] Figure 4a This is a schematic diagram of the overall structure of a display panel 100 before cutting provided in another embodiment of the present application. Figure 4bA schematic diagram of the overall structure of a display panel 100 after cutting provided by another embodiment of the present application.

[0073] See also Figure 4a and Figure 4b ,and Figure 1a , Figure 1b The difference from the embodiment of FIG. 1 is that the display panel 100 in this embodiment further includes a cushion layer 190, which is disposed on the same layer as at least part of the light-emitting functional layer 140, and the conductive layer 130 is disposed on the side of the cushion layer 190 away from the substrate 110. The cushion layer 190 can be located on the side of the first partition structure 120 close to the first area VA1. With such a design, the cushion layer 190 can support the conductive layer 130, improve its stress condition, and facilitate the close overlap between the conductive layer 130 and the conductive part 121. Figure 4a By cutting the structure in the second area VA2 along the cutting line L1, such as the conductive layer 130 and the substrate 110, the structure shown in FIG. Figure 4b It should be noted that, in some embodiments, only the conductive layer 130 in the second area VA2 may be cut along the cutting line L1 without cutting the substrate 110, so as to obtain the display panel 100 in other embodiments.

[0074] Based on the above embodiment, optionally, the cushion layer 190 is spaced apart from the light-emitting functional layer 140 , so that the area spaced apart from the cushion layer 190 and the light-emitting functional layer 140 blocks the transmission of water vapor, thereby preventing water vapor from entering the display area and corroding it.

[0075] Furthermore, the first partition structure 120 is spaced apart from the light-emitting functional layer 140. Optionally, the light-emitting functional layer 140 includes light-emitting functional layers of multiple colors, and the cushion layer 190 is arranged in the same layer as the light-emitting functional layer of one color and is made of the same material. This design allows the two to be made of the same material in the same step, which simplifies the production steps and improves production efficiency. Since the light-emitting functional layer 140 can include a red light-emitting functional portion, a green light-emitting functional portion, a blue light-emitting functional portion, etc., the cushion layer 190 can be made together with the red light-emitting functional portion, the cushion layer 190 can also be made together with the green light-emitting functional portion, and the cushion layer 190 can also be made together with the blue light-emitting functional portion.

[0076] Similarly, in some embodiments, the conductive layer 130 and at least part of the first electrode layer 160 are optionally provided in the same layer and made of the same material. In this way, the conductive layer 130 and the first electrode layer 160 can also be made of the same material in the same process, which simplifies the production steps and improves the production efficiency. That is, the conductive layer 130 can be made together with the cathode electrode layer, and the conductive layer 130 made in this way has a conductive property along with the cathode electrode. The conductive layer 130 can also be made together with the anode electrode layer, and the conductive layer 130 made in this way has a conductive property along with the anode electrode.

[0077] The first partition structure 120 may be completely located in the second area VA2, or may be partially located in the second area VA2 and partially located in the display area AA. Figures 1a to 4b As shown, in some embodiments, optionally, the second partition structure 150 located on the side of the display area AA closest to the second area VA2 is spaced apart from the first partition structure 120 .

[0078] That is Figure 1a , Figure 1b and Figure 4a , Figure 4b In the embodiment, the first partition structure 120 is completely located in the second area VA2, and is spaced from the second partition structure 150 in the display area AA which is the smallest distance therefrom. With this design, the conductive layer 130 and the first electrode layer 160 can be completely isolated from each other with the help of the area between the second partition structure 150 and the first partition structure 120, thereby improving the isolation effect of the second partition structure 150 and further preventing the problem of water vapor corrosion.

[0079] The second partition structure 150 may have the same structure as the first partition structure 120. In some embodiments, the first partition structure 120 includes a conductive portion 121 and a blocking portion 122, wherein the conductive portion 121 is located on the substrate 110, and the blocking portion 122 is located on the side of the conductive portion 121 away from the substrate 110. Meanwhile, the second partition structure 150 includes a first film layer 151 and a second film layer 152 stacked, wherein the first film layer 151 and the conductive portion 121 are arranged in the same layer, and the second film layer 152 and the blocking portion 122 are arranged in the same layer. Such a design makes it easier to manufacture the first partition structure 120 and the second partition structure 150, such as firstly manufacturing the first film layer 151 and the conductive portion 121 arranged in the same layer, and then manufacturing the second film layer 152 and the blocking portion 122 arranged in the same layer.

[0080] Furthermore, the first film layer 151 is arranged on the same layer as the conductive part 121 and is made of the same material, and the second film layer 152 is arranged on the same layer as the blocking part 122 and is made of the same material. In this way, the first partition structure 120 and the second partition structure 150 can be made of the same material in the same step, which simplifies the production steps and improves production efficiency.

[0081] Figure 5 This is a schematic diagram of the overall structure of a display device 10 provided in one embodiment of the present application.

[0082] Please combine Figures 1a to 4b Also see Figure 5 , the embodiment of the present application further provides a display device 10, which includes a display panel 100 and a photosensitive element (not shown in the figure) as described in any of the above embodiments, and the photosensitive element is used to collect light passing through the first area VA1. Among them, the photosensitive element can be arranged in the opening area. The opening area can be a through hole, of course, it can also be a blind hole. When the opening area is a blind hole, the substrate 110 of the display panel 100 is not cut to form a hole structure. In another embodiment, the photosensitive element can also be arranged in the area corresponding to the opening area on the backlight side of the display panel 100.

[0083] The display panel 100 disclosed in the embodiment of the present application is applied to the display device 10 to provide the 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. The display device 10 of the embodiment of the present application, by setting a first partition structure 120 in the second area VA2, isolates the film layer that can form a water vapor transmission channel, thereby preventing water vapor from entering the display area AA and causing corrosion thereto. At the same time, a conductive layer 130 is set on the side of the first partition structure 120 close to the first area VA1, and the conductive layer 130 is overlapped with the conductive portion 121 of the first partition structure 120, so that the conductive layer 130 can conduct the edge static electricity of the first area VA1, which is convenient for electrostatic testing of the product.

[0084] Optionally, the display panel 100 may be a foldable display panel. Optionally, the display device 10 further includes a polarizer located on the light-emitting side of the display panel 100. The connecting wire is used to transmit a positive DC potential or a zero potential to the first partition structure 120 and the conductive layer 130. Compared with the way in which the connecting wire is used to transmit a negative DC potential (such as a negative potential of the cathode) to the first partition structure 120 and the conductive layer 130, the following problems can be improved: The titanium aluminum titanium (TiAlTi) hole area partition groove design in the related art, although it can conduct away the static electricity at the edge of the hole area to improve the copper rod test problem, but because the entire cathode can only be the negative potential of ELVSS, in a foldable product, the negative charge will attract the diffusion of ions in the folded polarizer (POL), resulting in hole area corrosion problems during reliability ring testing.

[0085] Figure 6 A flow chart of a method for manufacturing a display panel 100 provided in accordance with an embodiment of the present application.

[0086] Please combine Figures 1a to 4b Also see Figure 6 The embodiment of the present application also provides a method for manufacturing a display panel 100, which includes the following steps: S102, providing a substrate 110, the substrate 110 including a first supporting area and a second supporting area surrounding at least a portion of the first supporting area.

[0087] S104 , forming a first partition structure 120 in the second supporting area on the substrate 110 , wherein the first partition structure 120 includes a conductive portion 121 .

[0088] S106 , forming a conductive layer 130 on a side of the first partition structure 120 close to the first supporting area, wherein the conductive layer 130 overlaps the conductive portion 121 .

[0089] After the production is completed, before the production method is completed, the first supporting area on the substrate 110 corresponds to the above-mentioned first area VA1, and the second supporting area on the substrate 110 corresponds to the second area VA2 after the production is completed, that is, in the production method of the display panel 100 of the embodiment of the present application, after the first partition structure 120 and the conductive layer 130 are produced on the substrate 110, the conductive layer 130 is overlapped with the conductive portion 121 of the first partition structure 120, so that the conductive layer 130 can conduct the edge static electricity of the first area VA1, so as to facilitate electrostatic testing of the product.

[0090] The display panel 100 has a first area VA1 corresponding to the first supporting area, a second area VA2 corresponding to the second supporting area, and a display area AA, the second area VA2 surrounds the first area VA1, and the display area AA surrounds the second area VA2. The manufacturing method of the display panel 100 further includes the following steps:

[0091] S108, forming a first film layer structure on the substrate, and etching the first film layer structure to form a first partition structure 120 in the second area VA2 and a second partition structure 150 in the display area AA; the second area VA2 is located between the display area AA and the first area VA1.

[0092] In other words, the first partition structure 120 and the second partition structure 150 can be formed simultaneously in the same step by etching the first film layer, thereby simplifying the production steps and improving the production efficiency.

[0093] In some embodiments, the method for manufacturing the display panel 100 further includes the following steps:

[0094] S110, forming a second film layer structure and a third film layer structure stacked in sequence in a direction away from the substrate 110 on the substrate 110, and etching the second film layer structure and the third film layer structure to form a conductive layer 130 on a side of the first partition structure 120 close to the first area VA1, a first electrode layer 160 in the display area AA, a pad layer 190 on a side of the first partition structure 120 close to the first area VA1, and a light-emitting functional layer 140 in the display area AA; the conductive layer 130 is arranged on a side of the pad layer 190 away from the substrate; the first electrode layer 160 is arranged on a side of the light-emitting functional layer 140 away from the substrate 110; the second film layer structure is used to form the conductive layer 130 and the first electrode layer 160, and the third film layer structure is used to form the light-emitting functional layer 140 and the pad layer 190;

[0095] That is to say, the conductive layer 130 and the first electrode layer 160 can be formed simultaneously in the same step by etching the second film layer, and the light-emitting functional layer 140 and the cushion layer 190 can be formed simultaneously in the same step by etching the third film layer.

[0096] In some embodiments, the method for manufacturing the display panel 100 further includes the following steps:

[0097] S112, cutting the display panel 100 to form an opening area corresponding to the first supporting area and a transition area corresponding to the second supporting area, the conductive layer 130 is located between the first partition structure 120 and the opening area and extends to the opening area; the opening area penetrates the conductive layer 130.

[0098] After the film structure of the display panel 100 is cut, the display panel 100 having the opening area, the transition area and the display area is formed. The opening area 130 may also penetrate the substrate 110, or may not penetrate the substrate 110.

[0099] The manufacturing method of the display panel 100 of the embodiment of the present application is to isolate the film layer that can form the water vapor transmission channel by setting the first partition structure 120 in the second support area of ​​the substrate 110, so as to avoid the problem that water vapor enters the display area AA and causes corrosion thereto. At the same time, a conductive layer 130 is formed on the side of the first partition structure 120 close to the first area VA1, and the conductive layer 130 is overlapped with the conductive part 121 of the first partition structure 120, so that the conductive layer 130 can conduct the edge static electricity of the first area VA1, which is convenient for electrostatic testing of the product.

[0100] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel has a first area, a second area and a display area, the second area surrounds at least a portion of the first area, the display area surrounds at least a portion of the second area, and the display panel includes: substrate; a first partition structure, disposed on one side of the substrate and located in the second region, the first partition structure comprising a conductive portion; and A conductive layer is provided on one side of the substrate and is located on a side of the first partition structure close to the first region, and the conductive layer overlaps the conductive portion.

2. The display panel according to claim 1, characterized in that: The side wall of the first partition structure close to the first area has a recessed area; Optionally, the cross section of the first partition structure is in an inverted trapezoidal or I-shaped shape, and the cross section of the first partition structure is perpendicular to the substrate; Optionally, the first partition structure further includes a blocking portion, the blocking portion is located on a side of the conductive portion facing away from the substrate, a side wall of the conductive portion close to the first region is recessed relative to a side wall of the blocking portion close to the first region, and an orthographic projection of the conductive portion on the substrate is located within an orthographic projection of the blocking portion on the substrate; Optionally, the blocking portion is made of conductive material.

3. The display panel according to claim 1, characterized in that: The conductive layer includes a main body and a protruding portion, wherein the main body surrounds the first region and is spaced apart from the first region, and the protruding portion is connected to a side of the main body facing the first region; Optionally, there are multiple protrusions, and the multiple protrusions are arranged at intervals around the center of the first area.

4. The display panel according to claim 1, characterized in that: The display panel further includes a connecting line, a first end of which is electrically connected to the first partition structure, and the connecting line is used to transmit a DC potential; Optionally, the connecting line is used to transmit a positive DC potential or a negative DC potential or a zero potential; Optionally, the second end of the connecting line is located in the display area; Optionally, the second area is located between the first area and the display area; Optionally, the first zone is an open hole zone; the second zone is a transition zone; Optionally, the conductive layer covers the entire area between the first partition structure and the first region.

5. The display panel according to claim 1, characterized in that: The display panel further comprises a light-emitting functional layer located in the display area, a second partition structure and a first electrode layer, wherein the light-emitting functional layer is arranged on one side of the substrate, the light-emitting functional layer comprises a plurality of light-emitting functional parts arranged at intervals from each other, the second partition structure is located between at least part of the light-emitting functional parts adjacent to each other, and the first electrode layer is arranged on a side of the light-emitting functional layer away from the substrate; Optionally, the first electrode layers are separated by means of the second partition structure.

6. The display panel according to claim 5, characterized in that: The display panel further comprises a cushion layer, the cushion layer is arranged on the same layer as at least a part of the light-emitting functional layer, and the conductive layer is arranged on a side of the cushion layer away from the substrate; Optionally, the cushion layer is located on a side of the first partition structure close to the first area; Optionally, the cushion layer is spaced apart from the light-emitting functional layer; the first partition structure is spaced apart from the light-emitting functional layer; Optionally, the light-emitting functional layer includes light-emitting functional layers of multiple colors, and the cushion layer is disposed on the same layer as the light-emitting functional layer of one color and is made of the same material; Optionally, the conductive layer is disposed in the same layer as at least a portion of the first electrode layer; Optionally, the conductive layer is provided in the same layer as at least a portion of the first electrode layer and is made of the same material.

7. The display panel according to claim 5, characterized in that: The first partition structure further includes a blocking portion, wherein the blocking portion is located on a side of the conductive portion facing away from the substrate; The second isolation structure includes a first film layer and a second film layer which are stacked, wherein the first film layer is disposed in the same layer as the conductive portion, and the second film layer is disposed in the same layer as the blocking portion; Optionally, the first film layer is provided in the same layer as the conductive part and is made of the same material, and the second film layer is provided in the same layer as the blocking part and is made of the same material.

8. A display device, characterized in that: include: The display panel according to any one of claims 1 to 7; and A photosensitive element is used to collect light passing through the first area.

9. A method for manufacturing a display panel, characterized in that: include: providing a substrate, the substrate comprising a first supporting region and a second supporting region surrounding at least a portion of the first supporting region; forming a first partition structure in a second supporting area on the substrate, wherein the first partition structure includes a conductive portion; A conductive layer is formed on a side of the first partition structure close to the first supporting area, and the conductive layer overlaps the conductive portion.

10. The method for manufacturing a display panel according to claim 9, characterized in that: The display panel comprises a first area corresponding to the first supporting area, a second area corresponding to the second supporting area, and a display area, the second area surrounds at least a portion of the first area, and the display area surrounds at least a portion of the second area, and the method further comprises: forming a first film layer structure on the substrate, and performing an etching process on the first film layer structure to form a first partition structure in the second area and a second partition structure in the display area; the second area is located between the display area and the first area; And / or, the method further comprises: A second film layer structure and a third film layer structure which are stacked in sequence in a direction away from the substrate are sequentially formed on the substrate, and the second film layer structure and the third film layer structure are etched to form the conductive layer on the side of the first partition structure close to the first area, the first electrode layer in the display area, the cushion layer on the side of the first partition structure close to the first area, and the light-emitting functional layer in the display area; the conductive layer is arranged on the side of the cushion layer away from the substrate; the first electrode layer is arranged on the side of the light-emitting functional layer away from the substrate; the second film layer structure is used to form the conductive layer and the first electrode layer, and the third film layer structure is used to form the light-emitting functional layer and the cushion layer; And / or, the method further comprises: The display panel is cut to form an opening area corresponding to the first supporting area and a transition area corresponding to the second supporting area, the conductive layer is located between the first partition structure and the opening area and extends to the opening area, and the opening area penetrates the conductive layer.

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