Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate; the pixel defining layer is arranged on the substrate, and the pixel defining layer comprises pixel limiting parts and pixel openings defined by the pixel limiting parts; the isolation structure is arranged on the substrate and comprises a conductive part; the functional layer comprises first electrodes and touch electrodes, at least part of the first electrodes are located in the pixel openings, the touch electrodes are located on the sides, away from the substrate, of the conductive parts, the first electrodes and the touch electrodes are arranged in a mutually insulated and spaced mode, the first electrodes and the conductive parts are arranged in a mutually insulated and spaced mode, and the touch electrodes and the conductive parts are electrically connected. The touch electrode and the first electrode are arranged on the same functional layer, so that the structure and the preparation process of the display panel can be simplified.

Description

Technical Field

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

[0002] Organic Light-Emitting Diode (OLED) is an active light-emitting device. Compared with the traditional liquid crystal display (LCD) display method, OLED display technology does not require a backlight and has the characteristic of self-luminescence. OLED uses a thinner organic material film layer and a glass substrate. When an electric current passes through, the organic material will emit light. Therefore, OLED display panels can significantly save electricity, can be made lighter and thinner, can withstand a wider range of temperature changes than LCD display panels, and have a larger viewing angle. OLED display panels are expected to become the next generation of flat-panel display technology after LCD, and are one of the most popular technologies in flat-panel display technology.

[0003] The existing OLED display device includes a touch module, which is usually an external plug-in type. The external plug-in touch patch is attached to the surface of the display screen, which will cause the structure of the display device to be complicated and the thickness to be increased. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, aiming to simplify the structure of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, which includes: a substrate; a pixel definition layer, which is arranged on the substrate, the pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion; an isolation structure, which is arranged on the substrate, the isolation structure includes a conductive portion; a functional layer, which includes a first electrode and a touch electrode, at least a portion of the first electrode is located in the pixel opening, the touch electrode is located on a side of the conductive portion away from the substrate, the first electrode and the touch electrode are arranged to be insulated from each other, the first electrode and the conductive portion are arranged to be insulated from each other, and the touch electrode and the conductive portion are electrically connected to each other.

[0006] According to an implementation of the first aspect of the present application, the isolation structure also includes an insulating portion, the insulating portion includes a connecting opening and a first section located on the side of the conductive portion away from the substrate, the first section is arranged around at least part of the connecting opening, and the touch electrodes are electrically connected to each other via the connecting opening and the conductive portion.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the insulating part includes an organic insulating layer and / or an inorganic insulating layer.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the insulating part includes an organic insulating layer and / or an inorganic insulating layer.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, there are multiple communication openings, and the same touch electrode is electrically connected to the conductive part via the multiple communication openings.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the connecting opening is arranged adjacent to an area enclosed by an orthographic projection of the substrate and an orthographic projection of the first section on the substrate.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes a display area and a non-display area, the non-display area is located on at least one side of the display area, at least part of the touch electrodes and the conductive part extend from the display area to the non-display area, the first section is located in the display area, and the connecting opening is located in the non-display area.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the first sub-portion is arranged around the connecting opening, and the orthographic projection of the connecting opening on the substrate is located in the area enclosed by the edge of the orthographic projection of the first sub-portion on the substrate.

[0013] According to any of the aforementioned implementations of the first aspect of the present application, the communication opening is located in the display area of ​​the display panel.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the insulating portion further includes a second portion connected to the first portion and extending toward the substrate, the first portion and the second portion enclose a receiving groove with a connecting opening toward the substrate, and the conductive portion is located in the receiving groove.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first surface facing the substrate and a second surface facing away from the substrate, the first surface is arranged on the side of the second section and the conductive section facing the substrate, the second surface is arranged on the side of the first section facing away from the substrate, and the orthographic projection of the first surface on the substrate is located within the orthographic projection of the second surface on the substrate.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the first subsection and the conductive portion are stacked,

[0017] The conductive portion includes a first bottom surface facing the substrate and a first top surface facing away from the substrate, and an orthographic projection of the first bottom surface on the substrate is located within an orthographic projection of the first top surface on the substrate;

[0018] And / or, the first section has a second bottom surface facing the substrate and a second top surface facing away from the substrate, and an orthographic projection of the second bottom surface on the substrate is located within an orthographic projection of the second top surface on the substrate.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, the conductive portion and the touch electrode are stacked on top of each other and are in contact with each other.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes a carrier layer, the carrier layer is located on the side of the pixel definition layer facing away from the substrate, a through opening is provided through the carrier layer, the orthographic projection of the conductive portion on the substrate is located within the orthographic projection of the through opening on the substrate, and the touch electrode and the conductive portion are in contact and connected with each other within the through opening.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the cross-sectional area of ​​the conductive portion decreases in a direction approaching the substrate, or the conductive portion includes a first sublayer and a second sublayer located on the side of the first sublayer facing 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.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the conductive portion includes a first bottom surface facing the substrate, a first top surface facing away from the substrate, and a first side surface connecting the first top surface and the first bottom surface, and at least a portion of the first side surface is covered with an insulating layer.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the touch electrode includes a first touch portion and a second touch portion, the first touch portion extends along a first direction, and a plurality of first touch portions are arranged at intervals along a second direction, the second touch portion connects two adjacent first touch portions, and the first direction and the second direction intersect;

[0024] The first electrode includes a first electrode portion and a second electrode portion. The first electrode portion is located between two adjacent first touch portions. The plurality of first electrode portions are spaced apart along the second direction. The second electrode portion connects two adjacent first electrode portions.

[0025] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure is disposed on a side of the pixel defining portion facing away from the substrate.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate includes a metal layer and an insulating dielectric layer located between the metal layer and the pixel definition layer, the pixel defining portion also encloses an isolation opening, the insulating dielectric layer is provided with a clearance opening interconnected with the isolation opening, the isolation structure is located within the clearance opening and the isolation opening, and the metal layer and at least part of the conductive portion are made of the same material.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion further encloses to form an isolation opening, and the isolation structure is located in the isolation opening and is spaced apart from the inner wall surface of the pixel defining portion facing the isolation opening.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel also includes: a second electrode layer, the second electrode layer is located on the side of the pixel definition layer facing the substrate, the second electrode layer includes a plurality of second electrodes distributed at intervals, the orthographic projection of each second electrode on the substrate and the orthographic projection of each pixel opening on the substrate at least partially overlap, and the second electrode and at least part of the conductive portion are made of the same material.

[0029] An embodiment of the second aspect of the present application further provides a display device, comprising a display panel of any of the above-mentioned embodiments of the first aspect.

[0030] In the display panel provided in the embodiment of the present application, the display panel includes a substrate, a pixel definition layer, an isolation structure and a functional layer, the pixel definition layer includes a pixel defining portion and a pixel opening, and the pixel opening is used to set a light-emitting unit to realize the light-emitting display of the display panel. The functional layer includes a first electrode and a touch electrode, at least part of the first electrode is located at the pixel opening to drive the light-emitting unit to emit light, and the touch electrode is arranged on the conductive portion, so that the isolation structure can isolate the touch electrode and the first electrode from each other, and the first electrode and the touch electrode are not easily short-circuited. The touch electrode and the first conductive portion are electrically connected to each other, which can reduce the impedance of the touch electrode and improve the touch effect of the display panel. The present application can simplify the structure and preparation process of the display panel by arranging the touch electrode and the first electrode in the same functional layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0032] Figure 1 is a plan view of a display panel provided in an embodiment of the present application;

[0033] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0034] Figure 3 is a plan view of a display panel provided by another embodiment of the present application;

[0035] Figure 4 yes Figure 3 Sectional view at the middle BB;

[0036] Figure 5 In another example Figure 3 Sectional view at the middle BB;

[0037] Figure 6 In another example Figure 3 Sectional view at the middle BB;

[0038] Figure 7 In another example Figure 3 Sectional view at the middle BB;

[0039] Figure 8 In another example Figure 3 Sectional view at the middle BB;

[0040] Fig. 9 is a partial structural schematic diagram of a display panel provided by another embodiment of the present application;

[0041] Fig.10 is a partial structural schematic diagram of a display panel provided in yet another embodiment of the present application;

[0042] Fig.11 is a partial structural schematic diagram of a display panel provided in another embodiment of the present application;

[0043] Fig.12 In another example Figure 3 Cross-sectional view at the middle BB.

[0044] Description of reference numerals:

[0045] 100, substrate; 110, metal layer; 120, insulating dielectric layer;

[0046] 200, pixel definition layer; 210, pixel definition portion; 220, pixel opening; 230, light emitting unit; 240, isolation opening;

[0047] 300, isolation structure; 310, conductive part; 311, first sublayer; 312, second sublayer; 313, third sublayer; 320, insulating part; 321, communication opening; 322, first subsection; 323, second subsection;

[0048] 400, functional layer; 410, first electrode; 411, first electrode portion; 412, second electrode portion; 420, touch electrode; 420a, first touch electrode; 420b, second touch electrode; 421, first touch portion; 422, second touch portion; 430, touch lead;

[0049] 500, second electrode layer; 510, second electrode;

[0050] NA, non-display area; AA, display area; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0051] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that 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 examples of the present application. In the accompanying drawings and the following description, at least some of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0052] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0053] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0054] In order to better understand this application, Figures 1 to 12 The display panel and the display device according to the embodiments of the present application are described in detail.

[0055] Please also read Figure 1 and Figure 2 , Figure 1 A schematic plan view of a display panel provided in an embodiment of the present application; Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0056] like Figure 1 and Figure 2As shown, an embodiment of the first aspect of the present application provides a display panel, which includes a substrate 100, a pixel definition layer 200, an isolation structure 300 and a functional layer 400, wherein the pixel definition layer 200 is disposed on the substrate 100, and the pixel definition layer 200 includes a pixel defining portion 210 and a pixel opening 220 formed by the pixel defining portion 210; the isolation structure 300 is disposed on the substrate 100, and the isolation structure 300 includes a conductive portion 310; the functional layer 400 includes a first electrode 410 and a touch electrode 420, at least a portion of the first electrode 410 is located in the pixel opening 220, the touch electrode 420 is located on a side of the conductive portion 310 away from the substrate 100, the first electrode 410 and the touch electrode 420 are insulated from each other, the first electrode 410 and the conductive portion 310 are insulated from each other, and the touch electrode 420 and the conductive portion 310 are electrically connected to each other.

[0057] In the display panel provided in the embodiment of the present application, the display panel includes a substrate 100, a pixel definition layer 200, an isolation structure 300 and a functional layer 400, the pixel definition layer 200 includes a pixel defining portion 210 and a pixel opening 220, and the pixel opening 220 is used to set the light-emitting unit 230 to realize the light-emitting display of the display panel. The functional layer 400 includes a first electrode 410 and a touch electrode 420, at least part of the first electrode 410 is located in the pixel opening 220 to drive the light-emitting unit 230 to emit light, and the touch electrode 420 is arranged on the conductive portion 310, so that the isolation structure 300 can isolate the touch electrode 420 and the first electrode 410 from each other, and the first electrode 410 and the touch electrode 420 are not easy to be short-circuited. The touch electrode 420 and the first conductive portion 310 are electrically connected to each other, which can reduce the impedance of the touch electrode 420, improve the touch effect of the display panel, and avoid the formation of parasitic capacitance between the first conductive portion 310 and the touch electrode 420 to affect the normal operation of the touch electrode 420. The present application can simplify the structure and manufacturing process of the display panel by disposing the touch electrode 420 and the first electrode 410 on the same functional layer 400.

[0058] Optionally, the substrate 100 may include a substrate and an array substrate, and the array substrate may include a driving circuit. For example, the array substrate may include a first signal line layer, a second signal line layer, and a third signal line layer that are arranged on one side of the substrate and are stacked. An insulating layer is provided between adjacent signal line layers. Exemplarily, the pixel driving circuit provided on the array substrate includes a transistor and a storage capacitor. The transistor includes a semiconductor, a gate, a source and a drain. The storage capacitor includes a first plate and a second plate. As an example, the gate and the first plate may be located in the first signal line layer, the second plate may be located in the second signal line layer, and the source and the drain may be located in the third signal line layer.

[0059] Optionally, during the preparation of the display panel, a functional material layer can be deposited on the isolation structure 300 and the pixel definition layer 200, and the portion falling outside the isolation structure 300 forms a first electrode 410, and the portion falling on the isolation structure 300 forms a touch electrode 420, so that the first electrode 410 and the touch electrode 420 can be prepared and formed in the same process step, which can simplify the preparation process of the display panel.

[0060] In some optional embodiments, the isolation structure 300 also includes an insulating portion 320, which includes a connecting opening 321 and a first portion 322 located on the side of the conductive portion 310 away from the substrate 100, the first portion 322 is arranged around at least a portion of the connecting opening 321, and the touch electrode 420 is electrically connected to each other via the connecting opening 321 and the conductive portion 310.

[0061] In these optional embodiments, the isolation structure 300 further includes an insulating portion 320 located on the side of the conductive portion 310 facing away from the substrate 100, so that the first electrode 410 and the touch electrode 420 can be better insulated from each other through the isolation structure 300. The insulating portion 320 includes a connecting opening 321 and a first sub-portion 322, wherein the connecting opening 321 can electrically connect the touch electrode 420 and the conductive portion 310, and the first sub-portion 322 can ensure that the first electrode 410 and the touch electrode 420 are insulated from each other.

[0062] There are many ways to set the material of the insulating part 320. For example, the insulating part 320 may include an organic insulating layer and / or an inorganic insulating layer, that is, the material of the insulating part 320 may include an organic insulating material and / or an inorganic insulating material.

[0063] Optionally, the display panel further includes a carrier layer, which is located on the side of the pixel definition layer 200 away from the substrate 100, and at least part of the insulating portion 320 and the carrier layer are provided with the same material. There are many ways to provide the carrier layer, for example, the carrier layer includes at least one of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer and an electron injection layer.

[0064] In these optional embodiments, at least part of the insulating portion 320 and the carrier layer are made of the same material, so that the insulating portion 320 and the carrier layer can be prepared and formed in the same process step. For example, when preparing the carrier layer, at least part of the material of the carrier layer falls on the conductive portion 310 to form the insulating portion 320, which can simplify the preparation process of the display panel.

[0065] Optionally, there are multiple communication openings 321 , and the same touch electrode 420 is electrically connected to the conductive part 310 via multiple communication openings 321 , which can increase the contact area between the touch electrode 420 and the conductive part 310 and better reduce the impedance of the touch electrode 420 .

[0066] There are many locations for the communication opening 321. In some optional embodiments, please continue to refer to Figure 1 and Figure 2 , the communicating opening 321 is disposed adjacent to the area enclosed by the orthographic projection of the substrate 100 and the orthographic projection of the first sub-portion 322 on the substrate 100. That is, the communicating opening 321 can be disposed outside the first sub-portion 322. When preparing the first sub-portion 322, for example, when preparing the first sub-portion 322 using a mask plate, the position of the communicating opening 321 can be retained without depositing materials to form the first sub-portion 322. The communicating opening 321 can be formed without patterning the first sub-portion 322, which can simplify the manufacturing process of the display panel.

[0067] In some optional embodiments, the display panel includes a display area AA and a non-display area NA arranged around at least a portion of the display area AA, at least a portion of the touch electrode 420 and the conductive portion 310 extend from the display area AA to the non-display area NA, at least a portion of the first division 322 is located in the display area AA, and the connecting opening 321 is located in the non-display area NA.

[0068] In these optional embodiments, at least part of the first sub-portion 322 is located in the display area AA, which can improve the problem of the touch electrode 420 and the first electrode 410 being easily short-circuited in the display area AA. The connecting opening 321 is located in the non-display area NA, so that the touch electrode 420 and the conductive portion 310 are electrically connected to each other in the non-display area NA.

[0069] Please also read Figure 3 and Figure 4 , Figure 3 A schematic plan view of a display panel provided in another embodiment of the present application; Figure 4 yes Figure 3 Cross-sectional view at BB in the middle.

[0070] In some other optional embodiments, such as Figure 3 and Figure 4 As shown, the first section 322 is arranged around the communication opening 321, and the orthographic projection of the communication opening 321 on the substrate 100 is located in the area enclosed by the orthographic projection edge of the first section 322 on the substrate 100. That is, the communication opening 321 is arranged through the first section 322, and the first section 322 encloses to form a closed communication opening 321.

[0071] In these optional embodiments, the communication opening 321 is formed by enclosing the first sub-portion 322 , and the location of the communication opening 321 is more flexible, which facilitates the electrical connection between the touch electrode 420 and the conductive portion 310 .

[0072] Optionally, as described above, the display panel includes a display area AA and a non-display area NA, and the communication opening 321 may be located in the display area AA of the display panel. The communication opening 321 is located in the display area AA, so that the touch electrode 420 and the conductive part 310 can be electrically connected to each other in the display area AA, which can shorten the connection distance between the touch electrode 420 and the conductive part 310, and better reduce the impedance of the touch electrode.

[0073] Optional, such as Figure 5 As shown, the insulating portion 320 further includes a second portion 323 connected to the first portion 322 and extending toward the substrate 100 . The first portion 322 and the second portion 323 enclose a receiving groove with the connecting opening 321 facing the substrate 100 . The conductive portion 310 is located in the receiving groove.

[0074] In these optional embodiments, the insulating portion 320 includes a first portion 322 and a second portion 323, the second portion 323 extends from the first portion 322 toward the substrate 100, the second portion 323 and the first portion 322 enclose a receiving groove, and the conductive portion 310 is located in the receiving groove, so that the insulating portion 320 can provide protection for the conductive portion 310 in different directions, making it less likely for a short circuit to occur between the first electrode 410 and the conductive portion 310.

[0075] Optionally, the conductive part 310 includes a bottom surface facing the substrate 100, a top surface facing away from the substrate 100, and a side surface connecting the top surface and the bottom surface. The bottom surface of the conductive part 310 and the substrate 100 or the pixel defining part 210 are in contact and connected with each other, and the top surface and the side surface of the conductive part 310 are in contact and connected with the insulating part 320, so that each surface of the conductive part 310 can be insulated from the outside.

[0076] In some optional embodiments, the isolation structure 300 includes a first surface facing the substrate 100 and a second surface facing away from the substrate 100 , and an orthographic projection of the first surface on the substrate 100 is located within an orthographic projection of the second surface on the substrate 100 .

[0077] In these optional embodiments, the size of the first surface of the isolation structure 300 facing the substrate 100 is less than or equal to the size of the second surface thereof facing away from the substrate 100, so that a step difference or a concave structure can be formed on the side of the isolation structure 300, and the first electrode 410 and the touch electrode 420 are easily disconnected from each other at the edge of the isolation structure 300 and thus insulated from each other.

[0078] Optional, such as Figure 5 As shown, when the insulating part 320 wraps the conductive part 310, the first surface is formed by the second part 323 and the surface of the conductive part 310 facing the substrate 100, and the second surface can be set on the first part 322, so that the first electrode 410 and the touch electrode 420 can be easily disconnected and insulated from each other at the edge position of the insulating part 320.

[0079] Optional, such as Figure 2 As shown, when the conductive part 310 and the first sub-part 322 of the insulating part 320 are stacked, the conductive part 310 includes a first bottom surface facing the substrate 100 and a first top surface facing away from the substrate, and the orthogonal projection of the first bottom surface on the substrate 100 is within the orthogonal projection of the first top surface on the substrate 100; and / or the first sub-part 322 includes a second bottom surface facing the substrate 100 and a second top surface facing away from the substrate, and the orthogonal projection of the second bottom surface on the substrate 100 is within the orthogonal projection of the second top surface on the substrate 100. This makes it easy for the first electrode 410 and the touch electrode 420 to be disconnected at the edge of the conductive part 310 and / or the first sub-part 322 and insulated from each other.

[0080] In some alternative embodiments, Figure 6 As shown, the conductive part 310 and the touch electrode 420 are directly stacked and contacted with each other, which can increase the contact area between the conductive part 310 and the touch electrode 420 and further reduce the impedance of the touch electrode 420 .

[0081] Optionally, the display panel also includes a carrier layer, which is located on the side of the pixel definition layer 200 away from the substrate 100, and a through opening is arranged through the carrier layer, the orthographic projection of the conductive part 310 on the substrate 100 is located within the orthographic projection of the through opening on the substrate 100, and the touch electrode 420 and the conductive part 310 are in contact and connected with each other in the through opening.

[0082] In these optional embodiments, when the display panel includes a carrier layer, a through hole can be set on the carrier layer so that the conductive part 310 is exposed from the through hole, and the touch electrode 420 and the conductive part 310 are in contact and connected with each other in the through hole, which can increase the contact area between the conductive part 310 and the touch electrode 420 and further reduce the impedance of the touch electrode 420.

[0083] Optional, such as Figures 2 to 6 As shown, the cross-sectional area of ​​the conductive portion 310 decreases in the direction approaching the substrate 100 , so that a concave portion can be formed at the side of the conductive portion 310 , making it easy for the first electrode 410 and the touch electrode 420 to be disconnected and insulated from each other at the edge of the conductive portion 310 .

[0084] Optional, such as Figure 7 As shown, the conductive part 310 includes a first bottom surface facing the substrate 100, a first top surface facing away from the substrate 100, and a first side surface connecting the first top surface and the first bottom surface, and at least a portion of the first side surface is covered with an insulating layer 330, so that it is difficult for the first electrode 410 to contact the first side surface, thereby improving the short circuit connection between the first electrode 410 and the conductive part 310.

[0085] Optional, such as Figure 8As shown, the conductive part 310 includes a first sublayer 311 and a second sublayer 312 located on the side of the first sublayer 311 facing away from the substrate 100. The orthographic projection of the first sublayer 311 on the substrate 100 is located within the orthographic projection of the second sublayer 312 on the substrate 100, that is, the size of the first sublayer 311 is less than or equal to the size of the second sublayer 312, so that a step difference or a concave can be formed at the side position of the conductive part 310, so that the first electrode 410 and the touch electrode 420 can be easily disconnected at the edge position of the conductive part 310 and insulated from each other.

[0086] Optionally, the conductive portion 310 further includes a third sublayer 313 located on the first sublayer 311 facing the substrate 100. Optionally, the orthographic projection of the first sublayer 311 on the substrate 100 is located within the orthographic projection of the third sublayer 313 on the substrate 100. By providing the third sublayer 313, protection can be provided to the pixel defining portion 210 or the substrate 100 when the first sublayer 311 is prepared.

[0087] In some optional embodiments, such as Fig. 9 As shown, the touch electrode 420 includes a first touch portion 421 and a second touch portion 422, the first touch portion 421 is extended and formed along the first direction X, and multiple first touch portions 421 are arranged at intervals along the second direction Y, the second touch portion 422 connects two adjacent first touch portions 421, and the first direction X and the second direction Y intersect; the first electrode 410 includes a first electrode portion 411 and a second electrode portion 412, the first electrode portion 411 is located between two adjacent first touch portions 421, multiple first electrode portions 411 are arranged at intervals along the second direction Y, and the second electrode portion 412 connects two adjacent first electrode portions 411.

[0088] In these optional embodiments, the touch electrode 420 includes a first touch portion 421 and a second touch portion 422, and the second touch portion 422 is used to connect adjacent first touch portions 421, so that the touch electrode 420 is in a comb-tooth shape. The first electrode portion 411 and the second electrode portion 412, the second electrode portion 412 is used to connect adjacent first electrode portions 411, the first electrode 410 is in a comb-tooth shape as a whole, and the first electrode portion 411 is located between adjacent first touch portions 421, so that the first electrode 410 and the touch electrode 420 are plugged into each other, which, on the one hand, enables the touch electrode 420 and the first electrode 410 to be arranged at different positions in the display area AA, and on the other hand, it can also ensure that the touch electrode 420 and the first electrode 410 are insulated from each other.

[0089] Optional, such as Fig. 9 and Fig.10As shown, at least one row of pixel openings 220 is disposed between two adjacent first touch portions 421 , and the first direction X is the row direction, so that the first electrode 410 between two adjacent first touch portions 421 can drive the light-emitting units 230 in the at least one row of pixel openings 220 to emit light.

[0090] Optionally, the isolation structure 300 and the touch electrode 420 are adapted in shape and size, for example, the isolation structure 300 is set according to the shape of the touch electrode 420, and the isolation structure 300 is used to support the touch electrode 420. Optionally, the isolation structure 300 includes a first isolation portion for supporting the first touch portion 421 and a second isolation portion for supporting the second touch portion 422, and the second isolation portion is used to connect adjacent first isolation portions, so that the isolation structure 300 does not isolate the first electrode 410 into an independent first electrode 410 corresponding to the pixel opening 220, and the first electrode portion 411 and the second electrode portion 412 of the first electrode 410 can be connected to each other to form a whole-surface electrode.

[0091] There are many ways to set the touch electrode 420. The touch electrode 420 can be a self-capacitive touch electrode 420 or a mutual-capacitive touch electrode 420. Fig.10 As shown, the touch electrode 420 is a mutual capacitive touch electrode 420 , and the touch electrode 420 includes a first touch electrode 420 a and a second touch electrode 420 b . The first touch electrode 420 a and the second touch electrode 420 b both include a first touch portion 421 and a second touch portion 422 .

[0092] Optionally, when the touch electrode 420 is a mutual capacitive touch electrode 420 , in at least two adjacent first touch electrodes 420 a and second touch electrodes 420 b , the first touch portions 421 of the first touch electrode 420 a and the first touch portions 421 of the second touch electrode 420 b are alternately distributed along the second direction Y.

[0093] In these optional embodiments, by making the first touch portion 421 of the first touch electrode 420a and the first touch portion 421 of the second touch electrode 420b be alternately distributed along the second direction Y, the first touch electrode 420a and the second touch electrode 420b can be distributed at different positions of the display area AA, so that the first touch electrode 420a and the second touch electrode 420b can be distributed more evenly at different positions of the display area AA.

[0094] Optionally, a first electrode portion 411 is disposed between the first touch portion 421 of the adjacent first touch electrode 420a and the first touch portion 421 of the second touch electrode 420b. Optionally, at least a portion of the second electrode portion 412 is located on a side of the first touch portion 421 of the first touch electrode 420a away from the second touch portion 422, or at least a portion of the second electrode portion 412 is located on a side of the first touch portion 421 of the second touch electrode 420b away from the second touch portion 422, so as to connect the first electrode portion 411 between the first touch portion 421 of the adjacent first touch electrode 420a and the first touch portion 421 of the second touch electrode 420b.

[0095] Optional, such as Figure 1 As shown, the first electrode 410 is S-shaped, for example, a plurality of first electrode portions 411 are spaced apart along the second direction Y, and second electrode portions 412 adjacent along the second direction Y are disposed on both sides of the first electrode portions 411 in the first direction X and connect adjacent first electrode portions 411 .

[0096] Optionally, the first touch electrodes 420a and the second touch electrodes 420b are distributed in an array along the first direction X and the second direction Y. One or more first touch electrodes 420a may be arranged in the second direction Y, and the same first touch electrode 420a may be correspondingly provided with one or more second touch electrodes 420b, that is, the first touch portion 421 of the same first touch electrode 420a may be alternately distributed with the first touch portion 421 of one or more second touch electrodes 420b along the second direction Y.

[0097] In some optional embodiments, the touch electrode 420 is located in the display area AA of the display panel, the touch electrode 420 is a self-capacitive touch electrode 420, and the functional layer 400 also includes a touch lead 430 connecting each touch electrode 420, and multiple touch leads 430 extend to at least two sides of the display area AA of the display panel.

[0098] In these optional embodiments, the functional layer 400 also includes touch leads 430 connecting each touch electrode 420, so that each touch electrode 420 can transmit a touch signal through each touch lead 430, and multiple touch leads 430 extend to at least two sides of the display area AA of the display panel, so that the multiple touch leads 430 are distributed more evenly on the display panel, which can improve the display effect of the display panel.

[0099] Optionally, there are many ways to dispose the isolation structure 300 on the substrate 100, for example, Figures 2 to 6As shown, the isolation structure 300 can be disposed on the side of the pixel defining portion 210 away from the substrate 100. In the manufacturing process of the display panel, after the pixel definition layer 200 is formed, the isolation structure 300 can be further manufactured on the pixel defining portion 210. The manufacturing method of the isolation structure 300 is simple and convenient.

[0100] In some other optional embodiments, Figure 8 As shown, the isolation structure 300 can be directly disposed on the surface of the substrate 100. For example, an isolation opening 240 is further disposed on the pixel definition layer 200, and the isolation opening 240 is formed by enclosing the pixel defining portion 210. At least a portion of the substrate 100 is exposed by the isolation opening 240, so that the isolation structure 300 can be directly disposed on the substrate 100 exposed by the isolation opening 240. Optionally, the isolation structure 300 and the pixel defining portion 210 are spaced apart from each other toward the inner wall surface of the isolation opening 240. This makes it difficult for the functional layer 400 to be continuous between the isolation structure 300 and the pixel defining portion 210, and the first electrode 410 and the touch electrode 420 are not easily short-circuited.

[0101] Optionally, the display panel also includes a second electrode layer 500, which is located on the side of the pixel definition layer 200 facing the substrate 100, and the second electrode layer 500 includes a plurality of second electrodes 510 distributed at intervals, and the orthographic projection of each second electrode 510 on the substrate 100 and the orthographic projection of each pixel opening 220 on the substrate 100 at least partially overlap, and the second electrode 510 and at least part of the conductive portion 310 are made of the same material.

[0102] In these optional embodiments, the second electrode 510 and at least a portion of the conductive portion 310 are made of the same material, so that the second electrode 510 and the conductive portion 310 can be manufactured and formed in the same process step, which can further simplify the manufacturing process of the display panel.

[0103] Optionally, one of the first electrode 410 and the second electrode 510 is used as an anode and the other is used as a cathode to drive the light-emitting unit 230 to emit light. The embodiment of the present application is illustrated by taking the first electrode 410 as the cathode and the second electrode 510 as the anode.

[0104] In some other embodiments, Fig.12As shown, the substrate 100 includes a metal layer and an insulating dielectric layer 120 located between the metal layer 110 and the pixel definition layer 200. The pixel definition portion 210 also encloses an isolation opening 240. The insulating dielectric layer 120 is provided with a clearance opening interconnected with the isolation opening 240. The isolation structure 300 is located in the clearance opening and the isolation opening 240. The metal layer 110 and at least part of the conductive portion 310 are made of the same material to simplify the manufacturing process of the display panel. The metal layer 110 can be at least one of the first signal line layer, the second signal line layer, and the third signal line layer mentioned above, or the metal layer 110 can be a separately set signal line layer. The insulating dielectric layer 120 can be a planarization layer, an inter-gate insulating dielectric layer, etc.

[0105] The embodiment of the second aspect of the present application also provides a display device, including the display panel of any of the above-mentioned embodiments of the first aspect. Since the display device provided by the embodiment of the second aspect of the present application includes the display panel of any of the above-mentioned embodiments of the first aspect, the display device provided by the embodiment of the second aspect of the present application has the beneficial effects of the display panel of any of the above-mentioned embodiments of the first aspect, which will not be repeated here.

[0106] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0107] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer, disposed on the substrate, the pixel definition layer comprising a pixel definition portion and a pixel opening formed by the pixel definition portion; An isolation structure, disposed on the substrate, the isolation structure comprising a conductive portion; The functional layer includes a first electrode and a touch electrode, at least a portion of the first electrode is located in the pixel opening, the touch electrode is located on the side of the conductive portion away from the substrate, the first electrode and the touch electrode are insulated from each other, the first electrode and the conductive portion are insulated from each other, and the touch electrode and the conductive portion are electrically connected to each other.

2. The display panel according to claim 1, characterized in that: The isolation structure further includes an insulating portion, the insulating portion including a connecting opening and a first sub-portion located on a side of the conductive portion away from the substrate, the first sub-portion is arranged around at least a portion of the connecting opening, and the touch electrodes are electrically connected to each other via the connecting opening and the conductive portion; Preferably, the insulating portion includes an organic insulating layer and / or an inorganic insulating layer; Preferably, the display panel further comprises a carrier layer, the carrier layer is located on a side of the pixel definition layer away from the substrate, and at least a part of the insulating portion and the carrier layer are provided with the same material; Preferably, there are a plurality of the communication openings, and the same touch electrode is electrically connected to the conductive part via the plurality of the communication openings.

3. The display panel according to claim 2, characterized in that: The communication opening is arranged adjacent to the area enclosed by the orthographic projection of the substrate and the orthographic projection of the first sub-portion on the substrate; Preferably, the display panel includes a display area and a non-display area, the non-display area is located on at least one side of the display area, at least part of the touch electrodes and the conductive part extend from the display area to the non-display area, the first subsection is located in the display area, and the connecting opening is located in the non-display area.

4. The display panel according to claim 2, characterized in that: The first sub-portion is arranged around the communication opening, and the orthographic projection of the communication opening on the substrate is located in the area enclosed by the edge of the orthographic projection of the first sub-portion on the substrate; Preferably, the communication opening is located in a display area of ​​the display panel; Preferably, the insulating portion further includes a second portion connected to the first portion and extending toward the substrate, the first portion and the second portion are enclosed to form a receiving groove with a communication opening toward the substrate, and the conductive portion is located in the receiving groove; Preferably, the isolation structure includes a first surface facing the substrate and a second surface facing away from the substrate, the first surface is arranged on the side of the second section and the conductive section facing the substrate, the second surface is arranged on the side of the first section facing away from the substrate, and the orthographic projection of the first surface on the substrate is within the orthographic projection of the second surface on the substrate.

5. The display panel according to claim 2, characterized in that: The first sub-portion and the conductive portion are stacked. The conductive portion comprises a first bottom surface facing the substrate and a first top surface facing away from the substrate, wherein an orthographic projection of the first bottom surface on the substrate is located within an orthographic projection of the first top surface on the substrate; And / or, the first section has a second bottom surface facing the substrate and a second top surface facing away from the substrate, and an orthographic projection of the second bottom surface on the substrate is located within an orthographic projection of the second top surface on the substrate.

6. The display panel according to claim 1, characterized in that: The conductive part and the touch electrode are stacked and contact-connected with each other; Preferably, the display panel further comprises a carrier layer, the carrier layer is located on a side of the pixel definition layer away from the substrate, a through hole is provided through the carrier layer, the orthographic projection of the conductive part on the substrate is located within the orthographic projection of the substrate, and the touch electrode and the conductive part are in contact and connected with each other within the through hole; Preferably, the cross-sectional area of ​​the conductive portion decreases in a direction approaching the substrate, or the conductive portion comprises a first sublayer and a second sublayer located on a side of the first sublayer away from the substrate, and an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the second sublayer on the substrate; Preferably, the conductive portion includes a first bottom surface facing the substrate, a first top surface facing away from the substrate, and a first side surface connecting the first top surface and the first bottom surface, and at least a portion of the first side surface is covered with an insulating layer.

7. The display panel according to claim 1, characterized in that: The touch electrode comprises a first touch portion and a second touch portion, the first touch portion extends along a first direction, and a plurality of the first touch portions are arranged at intervals along a second direction, the second touch portion connects two adjacent first touch portions, and the first direction and the second direction intersect; The first electrode includes a first electrode portion and a second electrode portion. The first electrode portion is located between two adjacent first touch portions. A plurality of first electrode portions are arranged at intervals along the second direction. The second electrode portion connects two adjacent first electrode portions.

8. The display panel according to claim 1, characterized in that: The isolation structure is arranged on a side of the pixel defining portion away from the substrate; Alternatively, the substrate includes a metal layer and an insulating dielectric layer located between the metal layer and the pixel definition layer, the pixel defining portion also encloses an isolation opening, the insulating dielectric layer is provided with a clearance opening interconnected with the isolation opening, the isolation structure is located within the clearance opening and the isolation opening, and the metal layer and at least part of the conductive portion are made of the same material.

9. The display panel according to claim 1, characterized in that: The pixel defining portion also encloses to form an isolation opening, and the isolation structure is located in the isolation opening and is spaced apart from the inner wall surface of the pixel defining portion facing the isolation opening; Preferably, the display panel also includes: a second electrode layer, the second electrode layer is located on the side of the pixel definition layer facing the substrate, the second electrode layer includes a plurality of second electrodes distributed at intervals, the orthographic projection of each second electrode on the substrate and the orthographic projection of each pixel opening on the substrate at least partially overlap, and the second electrode and at least part of the conductive portion are made of the same material.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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