Display panel and display device

Abstract

The invention discloses a display panel and a display device, the display panel is provided with a first display area, and the display panel comprises a substrate; the plurality of isolation structures define an isolation opening, and the adjacent isolation structures are arranged at intervals in the first display area; the light-emitting layer is at least partially arranged in the isolation opening; the first electrode layer is located on the side, away from the substrate, of the light-emitting layer, the first electrode layer comprises a plurality of first electrodes, the first electrodes are located in the isolation openings, and at least in the first display area, open grooves are formed in the positions, corresponding to the positions between the adjacent first electrodes, of the first electrode layer. The arrangement area of the first electrode layer can be reduced by arranging the open groove, and the transmittance of the display panel is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and in particular, relates to a display panel and a display device. Background Art

[0002] With the advancement of technology, digital display devices such as smart phones and tablet computers have been widely used, among which display panels are indispensable interpersonal communication interfaces in these display devices. Organic Light Emitting Diode (OLED) display panels have the advantages of self-luminescence, energy saving and consumption reduction, bendability, good flexibility, etc., and the display device that realizes display does not require a backlight source, has the characteristics of fast response speed and good display effect, and has attracted the attention of users and is widely used in terminal products such as smart phones and tablet computers.

[0003] Due to the limitations of the film layer structure of existing display panels, the transmittance of the display panels cannot meet the requirements.

[0004] Therefore, a new display panel and display device are urgently needed. Summary of the invention

[0005] The embodiments of the present application provide a display panel and a display device. By providing grooves, the arrangement area of ​​the first electrode layer can be reduced, thereby reducing the light shielding area of ​​the first electrode layer and improving the transmittance of the display panel.

[0006] On the one hand, an embodiment of the present application provides a display panel having a first display area, wherein the display panel comprises: a substrate; a plurality of isolation structures disposed on one side of the substrate, the isolation structures enclosing an isolation opening, and adjacent isolation structures being spaced apart in the first display area; a light-emitting layer, at least partially disposed in the isolation opening; a first electrode layer, located on a side of the light-emitting layer away from the substrate, the first electrode layer comprising a plurality of first electrodes, the first electrodes being located in the isolation opening, and the first electrode layer having grooves corresponding to spaces between adjacent first electrodes in the first display area.

[0007] According to one aspect of the present application, it also includes a pixel definition layer arranged between the substrate and the isolation structure, the pixel definition layer includes a plurality of limiting structures and a pixel opening located between the limiting structures, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection range of the isolation opening on the substrate; preferably, the isolation structure is arranged on the side of the limiting structure away from the substrate, and the light-emitting layer is at least partially arranged in the pixel opening; preferably, the isolation structure is at least partially arranged around the pixel opening; preferably, the orthographic projection of the isolation structure on the substrate is a ring-shaped structure.

[0008] According to one aspect of the present application, the orthographic edge of the groove on the substrate is located within the orthographic projection of the isolation opening on the substrate; or, the orthographic edge of the groove on the substrate is located within the orthographic projection of the interval between the isolation structures on the substrate.

[0009] According to one aspect of the present application, the isolation structure includes a first sublayer and a second sublayer stacked in a direction away from the substrate, and the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate; the first sublayer is formed of a conductive material, and the first electrode is overlapped on the first sublayer; preferably, the materials of the first sublayer and the second sublayer both include metal materials.

[0010] According to one aspect of the present application, adjacent isolation structures are electrically connected via wires; preferably, the isolation structures and the wires are at least partially arranged in the same layer; preferably, the wires are transparent wires.

[0011] According to one aspect of the present application, the display panel also includes an encapsulation layer; the encapsulation layer includes a first encapsulation layer at least partially arranged on the side of the first electrode away from the substrate, and the orthographic projection of the first encapsulation layer on the substrate is located within the orthographic projection of the isolation structure on the substrate or the area enclosed by the isolation structure; preferably, the material of the first encapsulation layer includes an inorganic material; preferably, the encapsulation layer also includes a second encapsulation layer at least located on the side of the first encapsulation layer away from the substrate, and the material of the second encapsulation layer includes an organic material; preferably, the encapsulation layer also includes a third encapsulation layer at least located on the side of the second encapsulation layer away from the substrate, and the material of the third encapsulation layer includes an inorganic material; preferably, the material of the first encapsulation layer is the same as the material of the third encapsulation layer.

[0012] According to one aspect of the present application, the first encapsulation layer at least partially covers the surface of the second sub-layer facing away from the substrate; preferably, the orthographic projection area of ​​the first encapsulation layer on the second sub-layer is less than or equal to one half of the surface area of ​​the second sub-layer facing away from the substrate.

[0013] According to one aspect of the present application, the display panel also includes and at least partially surrounds the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area; the display panel also includes an array substrate and a second electrode, the array substrate is arranged between the substrate and the isolation structure, and the second electrode is arranged on the side of the light-emitting layer facing the substrate; the array substrate includes a pixel circuit, and the pixel circuit includes a stacked active layer, a gate layer, a source-drain layer and an intermediate connection layer, the source-drain layer includes a source and a drain, and the second electrode is electrically connected to one of the source and the drain through the intermediate connection layer; in the first display area, the intermediate connection layer includes a transparent conductive material, and / or, in the second display area, the intermediate connection layer includes a metal material; preferably, the transparent conductive material includes at least one of indium tin oxide and indium gallium zinc oxide.

[0014] According to one aspect of the present application, in a direction perpendicular to the plane of the substrate, the thickness of the first electrode is 80 angstroms to 200 angstroms; preferably, the material of the first electrode includes at least one of silver, aluminum, lithium, and magnesium; preferably, the material of the first electrode includes a magnesium-silver alloy.

[0015] Another aspect of the present invention provides a display device, wherein the display panel is the display panel in any of the above embodiments; and the optical element is arranged corresponding to the first display area of ​​the display panel.

[0016] Compared with the prior art, the display panel provided in the embodiment of the present invention includes a substrate, an isolation structure and a first electrode layer. Adjacent isolation structures are arranged at intervals, that is, no isolation structure is arranged in the area between adjacent isolation structures, and the first electrode of the first electrode layer is at least partially located in the isolation opening, and at least in the first display area, there are grooves between the first electrodes, and the grooves mean that the first electrode is not arranged at the corresponding position. By arranging the grooves, the arrangement area of ​​the first electrode layer can be reduced, thereby reducing the shading area of ​​the first electrode layer and improving the transmittance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0019] Figure 2 yes Figure 1Schematic diagram of the enlarged structure of the middle region Q;

[0020] Figure 3 An embodiment provides Figure 2 Schematic diagram of the cross-sectional structure at EE in the middle;

[0021] Figure 4 Another embodiment provides Figure 2 Schematic diagram of the cross-sectional structure at FF;

[0022] Figure 5 Yet another embodiment provides Figure 2 Schematic diagram of the cross-sectional structure at FF in the middle.

[0023] In the attached figure:

[0024] 1-Substrate;

[0025] 2-pixel definition layer; 21-definition structure; 22-pixel opening;

[0026] 3-isolation structure; 31-first sublayer; 32-second sublayer;

[0027] 4-light-emitting layer;

[0028] 5- first electrode;

[0029] 6- second electrode;

[0030] 7- first encapsulation layer;

[0031] M-isolation opening; K-groove; J-gap between adjacent isolation structures; Y-active layer; G-gate; S-source; D-drain; C-storage capacitor; C1-first electrode; C2-second electrode; L-middle connection layer; X-conducting wire; AA1-first display area; AA2-second display area. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0034] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0035] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0036] The present application provides a display panel and a display device. Figures 1 to 5 Various embodiments of a display panel and a display device are described.

[0037] See also Figures 1 to 3 A display panel provided in an embodiment of the present application includes: a substrate 1; a plurality of isolation structures 3, which are arranged on one side of the substrate 1, the isolation structures 3 enclose an isolation opening M, and are arranged at intervals between adjacent isolation structures 3 in a first display area AA1; a light-emitting layer 4, which is at least partially arranged in the isolation opening M; a first electrode layer, which is located on a side of the light-emitting layer 4 away from the substrate 1, the first electrode layer includes a plurality of first electrodes 5, the first electrodes are located in the isolation opening M, and at least in the first display area AA1, the first electrode layer is provided with grooves K corresponding to between adjacent first electrodes 5.

[0038] The display panel provided by the embodiment of the present invention includes a substrate 1, an isolation structure 3 and a first electrode layer. Adjacent isolation structures 3 are arranged at intervals, that is, the isolation structure 3 is not arranged in the area between the adjacent isolation structures 3, and the first electrode 5 of the first electrode layer is at least partially located in the isolation opening M, and at least in the first display area AA1, the first electrode layer is provided with a groove K corresponding to the adjacent first electrodes 5, and the groove K means that the first electrode 5 is not arranged at the corresponding position. By providing the groove K, the setting area of ​​the first electrode layer can be reduced, thereby reducing the shading area of ​​the first electrode layer, and improving the transmittance of the display panel.

[0039] Optionally, the first display area AA1 may be the entire display area of ​​the display panel, that is, the display area of ​​the entire display panel adopts the above-mentioned implementation of setting the grooves K to improve the transmittance of the display panel.

[0040] Alternatively, the first display area AA1 can be a light-transmitting area for setting optical elements such as a camera. Optionally, the display panel also includes a second display area AA2 that at least partially surrounds the first display area AA1, and the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, so that the corresponding optical element receives sufficient light to ensure its imaging effect.

[0041] Optionally, the orthographic projection of the groove K on the substrate 1 and the orthographic projection of the interval J between adjacent isolation structures 3 on the substrate 1 at least partially overlap, that is, the groove K is set at least partially corresponding to the interval J between adjacent isolation structures 3 to avoid affecting the normal function of the first electrode 5 when used for display.

[0042] In this embodiment, the orthographic projection of the slot K on the substrate 1 and the orthographic projection of the interval J between adjacent isolation structures 3 on the substrate 1 can be completely overlapped, that is, the first electrode 5 can be extended to the edge of the isolation structure 3 for forming the isolation opening M, so that the shape and size of the slot K and the shape and size of the interval J between adjacent isolation structures 3 are consistent. Of course, the first electrode 5 can be completely located in the isolation opening M, and the first electrode material located on the side of the isolation structure 3 away from the substrate 1 and in the interval J between adjacent isolation structures 3 is completely removed to form the slot K, thereby improving the transmittance of the display panel.

[0043] For example, the orthographic projection edge of the slot K on the substrate 1 is located within the orthographic projection of the isolation opening M on the substrate 1 . That is, the area of ​​the slot K is larger than the area of ​​the interval J between adjacent isolation structures 3 , which can be specifically selected by adjusting the setting position of the first electrode 5 .

[0044] Alternatively, the orthographic projection edge of the slot K on the substrate 1 is located within the orthographic projection of the interval between the isolation structures 3 on the substrate 1. That is, the area of ​​the slot K is smaller than the area of ​​the interval J between adjacent isolation structures 3, so as to avoid the setting range of the slot K being too large, which would affect the normal operation of the first electrode 5.

[0045] In addition to the above method, the orthographic projection edge of the groove K on the substrate 1 can also be located within the orthographic projection of the isolation structure 3 on the substrate 1, that is, part of the first electrode layer can extend to the surface of the isolation structure 3 away from the side to form the groove K.

[0046] Since the first electrode 5 is usually made of metal, such as magnesium / silver alloy, and its thickness is generally 100 angstroms to 150 angstroms, the transmittance of the first electrode 5 is 65% to 75%, which in turn affects the transmittance of the display panel.

[0047] In order to solve the above problem, the embodiment of the present invention limits the setting area of ​​the first electrode 5 and removes at least a portion of the first electrode material in the area between adjacent isolation structures 3 through etching and other process means to form a groove K, thereby ensuring that the first electrode 5 is only located in the area enclosed by the isolation structure 3, thereby reducing the blocking area of ​​the first electrode 5.

[0048] The first electrode 5 is overlapped on the first side surface of the isolation structure 3 , so that a plurality of first electrodes 5 can be interconnected through the isolation structure 3 to form a whole-surface electrode.

[0049] The substrate 1 mainly plays a supporting role, and other film layers are stacked on the substrate 1 in sequence. The stacking arrangement mentioned here means that the other film layers are arranged in sequence along the thickness direction of the substrate 1. There can be multiple film layer structures in the substrate 1, and the specific film layer structure composition of the substrate 1 is not limited in the embodiment of the present invention.

[0050] In one embodiment, the display panel may further include a pixel definition layer 2 disposed between the substrate 1 and the isolation structure 3, the pixel definition layer 2 including a plurality of defining structures 21 and pixel openings 22 located between the defining structures 21, the isolation structure 3 being disposed on a side of the defining structure 21 facing away from the substrate 1, and the light-emitting layer 4 being at least partially disposed within the pixel opening 22.

[0051] In this embodiment, the pixel definition layer 2 is disposed on the substrate 1 and includes a limiting structure 21 and a pixel opening 22. The light emitting layer 4 can be disposed in the pixel opening 22 to realize the light emitting display of the display panel. The side of the pixel definition layer 2 facing away from the substrate 1 is provided with an isolation structure 3 and a first electrode 5.

[0052] Optionally, the orthographic projection of the pixel opening 22 on the substrate 1 is located within the orthographic projection range of the isolation opening M on the substrate 1 .

[0053] In this embodiment, the area of ​​the isolation opening M is larger than the area of ​​the pixel opening 22 , which can reduce the influence of the isolation structure 3 on the light emitting viewing angle of the light emitting layer 4 .

[0054] Optionally, the isolation structure 3 is at least partially disposed around the pixel opening 21 , so as to limit the shape of the light-emitting layer 4 .

[0055] Optionally, the orthographic projection of the isolation structure 3 on the substrate 1 is an annular structure, and the shape of the orthographic projection of the isolation structure 3 on the substrate 1 usually matches the shape of the pixel opening 22. For example, when the pixel opening 22 is circular, the orthographic projection of the isolation structure 3 on the substrate 1 is a circular ring structure. Of course, the orthographic projection of the isolation structure 3 on the substrate 1 may also be other annular structures, such as a rectangular annular structure, an elliptical annular structure, etc., without special limitation.

[0056] Optionally, a plurality of pixel openings 22 are distributed at intervals, and a light-emitting layer 4 is disposed in each pixel opening 22 .

[0057] Optionally, there are multiple first electrodes 5 , and each first electrode 5 is located on a side of each light-emitting layer 4 facing away from the substrate 1 .

[0058] Optionally, the display panel further includes a second electrode 6, which is located on the side of the light-emitting layer 4 facing the substrate 1, and the second electrode 6 interacts with the first electrode 5 to drive the light-emitting layer 4 to emit light. One of the first electrode 5 and the second electrode 6 is an anode, and the other is a cathode. In the embodiment of the present application, the second electrode 6 is an anode and the first electrode 5 is a cathode.

[0059] Optionally, the light-emitting layer 4 includes one or more of an electron injection layer, an electron transport layer, a light-emitting material layer, a hole blocking layer, an electron blocking layer, a hole transport layer and a hole injection layer. It can be selected according to the specific type of the light-emitting layer 4, and there is no special limitation. The electron injection layer, the electron transport layer, and the hole blocking layer can be arranged between the first electrode 5 and the light-emitting material layer. The electron blocking layer, the hole transport layer and the hole injection layer can be arranged between the second electrode 6 and the light-emitting material layer. Among them, the second electrode 6 is arranged between the substrate 1 and the light-emitting layer 4, and the second electrode 6 is at least partially located in the pixel opening 22.

[0060] The material of the first electrode 5 can be at least one of metal materials such as silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca) or indium (In), and can also be an alloy of the aforementioned metal materials, such as magnesium-silver alloy (Mg / Ag) and lithium-aluminum alloy (Li / Al), which is not limited in this embodiment.

[0061] Optionally, in a direction perpendicular to the plane where the substrate 1 is located, the thickness of the first electrode 5 is 80 angstroms to 200 angstroms.

[0062] The material of the second electrode 6 is generally a material with a high work function to improve the hole injection efficiency, and can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO) or a transparent conductive polymer (such as polyaniline), etc. For example, the second electrode 6 can be made of an ITO-Ag-ITO composite material, without special limitation.

[0063] Optionally, a planarization layer is further included between the substrate 1 and the pixel definition layer 2. The material of the planarization layer may be hexamethyldisiloxane, epoxy resin or polyimide, or other materials, which is not limited in this embodiment.

[0064] See also Figure 2 , Figure 4 as well as Figure 5 Since no first electrode 5 is provided between adjacent isolation structures 3 , in order to achieve electrical connection between the first electrodes 5 located in each isolation structure 3 , in some optional embodiments, the adjacent isolation structures 3 are electrically connected via a wire X.

[0065] It can be understood that since the first electrode 5 and the first side surface of the isolation structure 3 are overlapped, after the adjacent isolation structures 3 are electrically connected through the wire X, the adjacent first electrodes 5 can also be electrically connected. In this embodiment, the setting position of the wire X is not particularly limited as long as it does not affect the normal light emission of the display panel.

[0066] For example, the isolation structure 3 and the wire X are at least partially arranged in the same layer. On the one hand, the isolation structure 3 and the wire X can be arranged together on the side of the definition structure 21 of the pixel definition layer 2 away from the substrate 1, which is convenient for preparation. On the other hand, the wire X can be made through the same process as a certain layer or multiple layers of the isolation structure 3, and the wire X can also be made of the same material as a certain film layer of the isolation structure 3. For example, when the isolation structure 3 includes a stacked molybdenum-aluminum-titanium structure, the wire X can be made of any material among molybdenum, aluminum, and titanium.

[0067] Optionally, in this embodiment, in the first display area AA1, adjacent isolation structures 3 are electrically connected via transparent wires X. Since the transmittance of the transparent wires X is relatively high, the use of the transparent wires X can further improve the transmittance of the first display area AA1 of the display panel.

[0068] The transparent wire X may be made of a material with high light transmittance such as ITO (Indium Tin Oxide).

[0069] In some optional embodiments, the display panel also includes an encapsulation layer; the encapsulation layer includes a first encapsulation layer 7 that is at least partially arranged on the side of the first electrode 5 facing away from the substrate 1, and the orthographic projection of the first encapsulation layer 7 on the substrate 1 is located within the orthographic projection of the isolation structure 3 on the substrate 1 or the area enclosed by the isolation structure 3.

[0070] In this embodiment, the first encapsulation layer 7 can be arranged in the area enclosed by the isolation structure 3, and can also partially or completely cover the side surface of the isolation structure 3 facing away from the substrate 1, but the first encapsulation layer 7 will not be arranged in the area between adjacent isolation structures 3, so as to facilitate the removal of the first electrode 5 material located in the area between adjacent isolation structures 3 during preparation.

[0071] Specifically, the first encapsulation layer 7 may cover a surface of the first electrode 5 that is away from the substrate 1 , and extend to a surface of the isolation structure 3 that is away from the substrate 1 .

[0072] The material of the first encapsulation layer 7 includes an inorganic material, that is, the first encapsulation layer 7 is an inorganic encapsulation layer. The inorganic encapsulation layer can be prepared by chemical vapor deposition, which can improve the compactness of the first encapsulation layer 7 and thus improve the encapsulation effect of the encapsulation layer.

[0073] Optionally, the encapsulation layer further includes a second encapsulation layer located on the side of the first encapsulation layer 7 away from the substrate 1, and the material of the second encapsulation layer includes an organic material. That is, the second encapsulation layer is an organic encapsulation layer, and the organic encapsulation layer can be prepared by inkjet printing, so that the encapsulation layer has a suitable thickness.

[0074] Optionally, the encapsulation layer further includes a third encapsulation layer located on the side of the second encapsulation layer away from the substrate 1, and the material of the third encapsulation layer includes an inorganic material. That is, the third encapsulation layer is an inorganic encapsulation layer, and further adding an inorganic encapsulation layer outside the organic encapsulation layer can further improve the encapsulation effect of the encapsulation layer.

[0075] Optionally, the material of the first encapsulation layer 7 is the same as that of the third encapsulation layer, so that the first encapsulation layer 7 and the third encapsulation layer can be prepared using the same equipment, thereby simplifying the preparation process of the display panel.

[0076] Optionally, the isolation structure 3 includes a first sublayer 31 and a second sublayer 32 stacked in a direction away from the substrate 1, and the orthographic projection of the first sublayer 31 on the substrate 1 is located within the orthographic projection of the second sublayer 32 on the substrate 1. For example, the orthographic projection size of the first sublayer 31 on the substrate 1 is smaller than the orthographic projection size of the second sublayer 32 on the substrate 1, so that the first sublayer 31 can be concave relative to the second sublayer 32, and the first electrode 5 and the light-emitting layer 4 and other structures can be broken at the second sublayer 32 to form multiple independent first electrodes 5 and multiple light-emitting layers 4, without the need to use a precision mask plate to evaporate the light-emitting layer 4, which can simplify the preparation process of the display panel.

[0077] Optionally, the first sublayer 31 is formed of a conductive material, and the first electrode 5 is overlapped on the first sublayer 31 , so that a plurality of first electrodes 5 can be interconnected through the first sublayer 31 to form a surface electrode.

[0078] Optionally, the materials of the first sublayer 31 and the second sublayer 32 may be the same or different, as long as the first sublayer 31 is conductive. Optionally, the materials of the first sublayer 31 and the second sublayer 32 both include metal materials for ease of preparation. For example, the first sublayer 31 may be made of aluminum metal material, and the second sublayer 32 may be made of titanium metal material. Alternatively, the first sublayer 31 may include a conductive material, and the second sublayer 32 may include an insulating material, without particular limitation.

[0079] In some optional embodiments, the first encapsulation layer 7 at least partially covers a surface of the second sub-layer 32 facing away from the substrate 1 .

[0080] In this embodiment, the first encapsulation layer 7 can extend from the surface of the first electrode 5 facing away from the substrate 1 along the side of the isolation structure 3 to the surface of the second sublayer 32 facing away from the substrate 1 to ensure the encapsulation effect of the first encapsulation layer 7.

[0081] The first encapsulation layer 7 may partially cover the surface of the second sub-layer 32 on the side facing away from the substrate 1 , or may completely cover the surface of the second sub-layer 32 on the side facing away from the substrate 1 .

[0082] For example, the orthographic projection area of ​​the first encapsulation layer 7 on the second sub-layer 32 is less than or equal to half of the surface area of ​​the second sub-layer 32 facing away from the substrate 1, that is, the first encapsulation layer 7 can cover half of the surface of the second sub-layer 32 close to the pixel opening 22, so as to facilitate the removal of the first electrode 5 material located in the area between adjacent isolation structures 3 during preparation.

[0083] See also Figure 3 or Figure 4 In some optional embodiments, the display panel further includes an array substrate 1 and a second electrode 6, the array substrate 1 is arranged between the substrate 1 and the isolation structure 3, and the second electrode 6 is arranged on the side of the light-emitting layer 4 facing the substrate 1; the array substrate 1 includes a pixel circuit, the pixel circuit includes a stacked active layer Y, a gate G layer, a source-drain electrode layer and an intermediate connection layer L, the source-drain electrode layer includes a source electrode S and a drain electrode D, and the second electrode 6 is electrically connected to one of the source electrode S and the drain electrode D through the intermediate connection layer L; in the first display area AA1, the intermediate connection layer L includes a transparent conductive material.

[0084] It is understandable that, since the first display area AA1 has a higher requirement for transmittance, the intermediate connection layer L in the first display area AA1 can be made of a transparent conductive material with better transmittance. For example, the transparent conductive material includes at least one of indium tin oxide and indium gallium zinc oxide.

[0085] At the same time, considering that the second display area AA2 has a relatively low requirement for transmittance, and considering the difficulty of the manufacturing process and cost reasons, in the second display area AA2, the intermediate connection layer L may include metal materials, specifically one or more of gold, silver, aluminum, titanium, molybdenum and the like.

[0086] Of course, according to actual needs, the intermediate connection layer L made of transparent conductive material can be used in both the first display area AA1 and the second display area AA2, or the intermediate connection layer L made of metal material can be used in both the first display area AA1 and the second display area AA2, without special limitation.

[0087] Optionally, the array substrate 1 may include a first conductive layer, a second conductive layer, a third conductive layer and a fourth conductive layer which are arranged on one side of the substrate and are stacked. An insulating layer is provided between adjacent conductive film layers. Exemplarily, the pixel driving circuit provided on the array substrate 1 includes a transistor and a storage capacitor C. The transistor includes an active layer Y, a gate G, a source S and a drain D. The storage capacitor C includes a first plate C1 and a second plate C2. As an example, the gate G and the first plate C1 may be located in the first conductive layer, the second plate C2 may be located in the second conductive layer, the source S and the drain D may be located in the third conductive layer, and the intermediate connection layer L is located in the fourth conductive layer.

[0088] The embodiment of the present invention further provides a display device, comprising: a display panel, which is the display panel in any of the above embodiments; and an optical element, which is arranged corresponding to the first display area AA1 of the display panel. The optical element can specifically be a camera, a fingerprint recognition element, or other element.

[0089] The display device provided by the embodiment of the present invention has the technical effect of the technical solution of the display panel in any of the above embodiments, and the explanation of the structures and terms that are the same as or corresponding to the above embodiments will not be repeated here.

[0090] The display panel provided in the embodiment of the present application can be applied to mobile phones, or any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiment of the present application does not make any special limitations on this.

[0091] The above are only specific implementation methods of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

[0092] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that: Having a first display area, the display panel comprises: substrate; A plurality of isolation structures are arranged on one side of the substrate, the isolation structures enclose an isolation opening, and are arranged at intervals between adjacent isolation structures in the first display area; A light-emitting layer, at least partially disposed in the isolation opening; The first electrode layer is located on the side of the light-emitting layer away from the substrate. The first electrode layer includes a plurality of first electrodes. The first electrodes are located in the isolation openings. In the first display area, the first electrode layer is provided with grooves corresponding to adjacent first electrodes.

2. The display panel according to claim 1, characterized in that: Also included is a pixel definition layer disposed between the substrate and the isolation structure, the pixel definition layer comprising a plurality of definition structures and pixel openings located between the definition structures, the orthographic projection of the pixel opening on the substrate being within the orthographic projection range of the isolation opening on the substrate; Preferably, the isolation structure is arranged on a side of the limiting structure away from the substrate, and the light-emitting layer is at least partially arranged in the pixel opening; Preferably, the isolation structure is at least partially arranged around the pixel opening; Preferably, the orthographic projection of the isolation structure on the substrate is a ring-shaped structure.

3. The display panel according to claim 1, characterized in that: The orthographic projection edge of the groove on the substrate is located within the orthographic projection of the isolation opening on the substrate; or, The orthographic projection edge of the groove on the substrate is located within the orthographic projection of the space between the isolation structures on the substrate.

4. The display panel according to claim 1, characterized in that: The isolation structure comprises a first sublayer and a second sublayer stacked in a direction away from the substrate, wherein an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the second sublayer on the substrate; The first sublayer is formed of a conductive material, and the first electrode is overlapped on the first sublayer; Preferably, the materials of the first sub-layer and the second sub-layer both include metal materials.

5. The display panel according to claim 4, characterized in that: The adjacent isolation structures are electrically connected via wires; Preferably, the isolation structure and the conductive wire are at least partially arranged in the same layer; Preferably, the conductive wire is a transparent conductive wire.

6. The display panel according to claim 4, characterized in that: The display panel further includes an encapsulation layer; The encapsulation layer comprises a first encapsulation layer at least partially disposed on a side of the first electrode away from the substrate, wherein the orthographic projection of the first encapsulation layer on the substrate is located within the orthographic projection of the isolation structure on the substrate or within the region enclosed by the isolation structure; Preferably, the material of the first encapsulation layer includes an inorganic material; Preferably, the encapsulation layer further comprises a second encapsulation layer at least located on a side of the first encapsulation layer away from the substrate, and a material of the second encapsulation layer comprises an organic material; Preferably, the encapsulation layer further comprises a third encapsulation layer at least located on a side of the second encapsulation layer away from the substrate, and a material of the third encapsulation layer comprises an inorganic material; Preferably, the material of the first encapsulation layer is the same as the material of the third encapsulation layer.

7. The display panel according to claim 6, characterized in that: The first encapsulation layer at least partially covers a surface of the second sub-layer facing away from the substrate; Preferably, an orthographic projection area of ​​the first encapsulation layer on the second sub-layer is less than or equal to one half of a surface area of ​​the second sub-layer on a side facing away from the substrate.

8. The display panel according to claim 1, characterized in that: The display panel further includes a second display area at least partially surrounding the first display area, and the transmittance of the first display area is greater than the transmittance of the second display area; The display panel further comprises an array substrate and a second electrode, wherein the array substrate is arranged between the substrate and the isolation structure, and the second electrode is arranged on a side of the light emitting layer facing the substrate; The array substrate comprises a pixel circuit, the pixel circuit comprises an active layer, a gate layer, a source-drain electrode layer and an intermediate connection layer which are stacked, the source-drain electrode layer comprises a source electrode and a drain electrode, and the second electrode is electrically connected to one of the source electrode and the drain electrode through the intermediate connection layer; In the first display area, the intermediate connection layer includes a transparent conductive material, and / or, In the second display area, the intermediate connection layer includes a metal material; Preferably, the transparent conductive material includes at least one of indium tin oxide and indium gallium zinc oxide.

9. The display panel according to claim 1, characterized in that: In a direction perpendicular to the plane where the substrate is located, the thickness of the first electrode is 80 angstroms to 200 angstroms; Preferably, the material of the first electrode includes at least one of silver, aluminum, lithium and magnesium; Preferably, the material of the first electrode includes magnesium-silver alloy.

10. A display device, characterized in that: include: The display panel is the display panel according to any one of claims 1 to 9; The optical element is arranged corresponding to the first display area of ​​the display panel.

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