Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device. The display panel comprises: a substrate; an isolation structure disposed on the substrate, the isolation structure comprising an isolation portion and an isolation opening formed by the isolation portion, and a light emitting unit disposed in the isolation opening; and a functional layer comprising a first electrode and a touch electrode, the first electrode being disposed in the isolation opening and located on a side of the light emitting unit away from the substrate, the touch electrode being located on a side of the isolation portion away from the substrate, and the first electrode and the touch electrode being spaced apart from each other and insulated from each other. By disposing the isolation structure, the functional layer can be separated into the first electrode and the touch electrode, and a touch structure layer does not need to be separately disposed, so that the structure of the display panel can be simplified.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) are self-emissive display devices. Compared to traditional liquid crystal displays (LCDs), OLED technology does not require a backlight and is self-emissive. OLEDs use a thin layer of organic material and a glass substrate; when current flows through, the organic material emits light. Therefore, OLED display panels can significantly save energy, be made lighter and thinner, withstand a wider range of temperature variations than LCD panels, and have a wider viewing angle. OLED display panels are expected to become the next-generation flat panel display technology after LCDs and are currently one of the most watched technologies in the flat panel display field.

[0003] Existing OLED display devices include touch modules, which are usually external. External touch patches are attached to the surface of the display body, which leads to a complex structure and increased thickness of the display device. Summary of the Invention

[0004] This application provides a display panel and a display device, which are intended to simplify the structure of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel, the display panel including: a substrate; an isolation structure disposed on the substrate, the isolation structure including an isolation portion and an isolation opening formed by the isolation portion, a light-emitting unit disposed within the isolation opening; a functional layer including a first electrode and a touch electrode, the first electrode being disposed within the isolation opening and located on the side of the light-emitting unit away from the substrate, the touch electrode being located on the side of the isolation portion away from the substrate, the first electrode and the touch electrode being insulated from each other and spaced apart.

[0006] According to an embodiment of the first aspect of this application, the touch electrode includes a second touch portion and two or more first touch portions, the first touch portions extending along a first direction, and the two or more first touch portions connecting the first direction and the second direction through the second touch portion.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the isolation portion includes a first isolation portion and a second isolation portion, the orthographic projection of the first touch portion on the substrate is located within the orthographic projection of the first isolation portion on the substrate, and the orthographic projection of the second touch portion on the substrate is located within the orthographic projection of the second isolation portion on the substrate.

[0008] According to any of the foregoing embodiments of the first aspect of this application, at least two first touch portions have different extension lengths in a first direction, and the touch electrode further includes a virtual electrode disposed on one side of the shorter first touch portion, the virtual electrode being insulated from the first touch portion, the second touch portion and the first electrode.

[0009] According to any of the foregoing embodiments of the first aspect of this application, 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 spaced apart along a second direction, and the second electrode portion is connected to two adjacent first electrode portions.

[0010] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the second electrode portion and the second touch electrode portion are disposed on both sides of the same first touch electrode portion in the first direction.

[0011] According to any of the foregoing embodiments of the first aspect of this application, one or more pixel openings arranged along a second direction are provided between two adjacent first touch portions, and the second direction intersects with the first direction.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode is a mutual capacitance touch electrode, and the touch electrode includes a first touch electrode and a second touch electrode, both of which include a first touch portion and a second touch portion.

[0013] According to any of the foregoing embodiments of the first aspect of this application, in at least two adjacent first touch electrodes and second touch electrodes, the first touch portion of the first touch electrode and the first touch portion of the second touch electrode are alternately distributed along a second direction;

[0014] Alternatively, a plurality of second touch electrodes arranged side by side along the second direction may be provided between two adjacent first touch electrodes along the first direction.

[0015] According to any of the foregoing embodiments of the first aspect of this application, the display panel includes a plurality of touch areas, each touch area is provided with a touch electrode, the plurality of touch areas are arrayed along a first direction and a second direction, and the distance between two adjacent touch areas is the same in the first direction and / or the second direction.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the number of touch electrodes disposed in each touch area is the same.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode is located in the display area of ​​the display panel, the touch electrode is a self-capacitive touch electrode, and the functional layer further includes touch leads connecting each touch electrode. The touch leads are located on the side of the isolation portion away from the substrate, and the plurality of touch leads extend to at least both sides of the display area of ​​the display panel.

[0018] According to any of the foregoing embodiments of the first aspect of this application, a plurality of touch electrodes are arranged in rows and columns along a first direction and a second direction. The display area of ​​the display panel and the plurality of touch electrodes are symmetrically arranged about a first reference line along the second direction, and the touch leads connected to the touch electrodes located on both sides of the first reference line extend in a direction away from the first reference line.

[0019] According to any of the foregoing embodiments of the first aspect of this application, a first reference line is disposed overlapping with a plurality of touch electrodes arranged along a second direction, and touch leads connected to the touch electrodes overlapping with the first reference line extend to both sides of the display area in the second direction.

[0020] According to any of the foregoing embodiments of the first aspect of this application, at least a portion of the first electrode is located between at least a portion of two adjacent touch leads arranged side by side.

[0021] According to any of the foregoing embodiments of the first aspect of this application, it further includes: a pixel definition layer, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, an isolation portion being disposed around the pixel opening, and a light-emitting unit being located within the pixel opening.

[0022] An isolation structure is disposed on the side of the pixel limiting portion away from the substrate;

[0023] Alternatively, the pixel limiting portion may also enclose an isolation opening, with the isolation structure located at the isolation opening and spaced apart from the inner wall surface of the pixel limiting portion facing the isolation opening;

[0024] Alternatively, the substrate includes a metal layer and an insulating dielectric layer located between the metal layer and the pixel definition layer. The pixel definition portion also surrounds and forms a clearance opening. The insulating dielectric layer has a communication port. The communication port and the clearance opening are connected and disposed together. An isolation structure is disposed within the clearance opening and the communication port. The metal layer and at least a portion of the isolation portion are made of the same material.

[0025] Alternatively, the isolation portion is formed by a recess in the surface of the pixel defining portion away from the substrate.

[0026] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a conductive portion and an insulating portion located on the side of the conductive portion away from the substrate, the touch electrode is located on the side of the insulating portion away from the substrate, and the first electrode and the conductive portion are electrically connected to each other.

[0027] According to any of the foregoing embodiments of the first aspect of this application, the insulating portion includes an inorganic insulating layer and / or an organic insulating layer.

[0028] According to any of the foregoing embodiments of the first aspect of this application, the orthographic projection of the conductive portion onto the substrate is located within the orthographic projection of the insulating portion onto the substrate.

[0029] According to any of the foregoing embodiments of the first aspect of this application, the conductive portion includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate. The first sublayer and the first electrode are electrically connected to each other. The orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate. The orthographic projection of the second sublayer on the substrate is located within the orthographic projection of the insulating portion on the substrate.

[0030] According to any of the foregoing embodiments of the first aspect of this application, the conductive portion further includes a third sublayer located on the side of the first sublayer facing the substrate, wherein the orthographic projection of the first sublayer onto the substrate is located within the orthographic projection of the third sublayer onto the substrate.

[0031] According to any of the foregoing embodiments of the first aspect of this application, the second sublayer and the third sublayer are made of the same material.

[0032] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above.

[0033] In the display panel provided in this application embodiment, the display panel includes a substrate, an isolation structure, and a functional layer. The isolation structure includes an isolation portion and an isolation opening. A light-emitting unit is disposed within the isolation opening to realize the light emission display of the display panel. The functional layer includes a first electrode and a touch electrode. The first electrode is located in the isolation opening and disposed on the light-emitting unit to drive the light-emitting unit to emit light. The touch electrode is disposed on the side of the isolation portion away from the substrate, 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. Therefore, by setting an isolation structure, this application can divide the functional layer into a first electrode and a touch electrode, simplifying the structure of the display panel by eliminating the need for a separate touch structure layer. Attached Figure Description

[0034] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals denote the same or similar features.

[0035] Figure 1 This is a top view of a display panel provided in an embodiment of this application;

[0036] Figure 2 yes Figure 1 Sectional view at point AA;

[0037] Figure 3 yes Figure 1 A magnified schematic diagram of a portion of the structure in an example;

[0038] Figure 4 yes Figure 1 A magnified view of the structure in another example;

[0039] Figure 5 yes Figure 1 A partially enlarged structural diagram in another example;

[0040] Figure 6 yes Figure 1 A partially enlarged structural diagram in yet another example;

[0041] Figure 7 yes Figure 1 A partially enlarged structural diagram in yet another example;

[0042] Figure 8 yes Figure 1 A partially enlarged structural diagram in yet another example;

[0043] Figure 9 This is a top view of a display panel provided in another embodiment of this application;

[0044] Figure 10 This is a top view of a display panel provided in another embodiment of this application;

[0045] Figure 11 This is a partial cross-sectional view of a display panel provided in an embodiment of this application;

[0046] Figure 12 This is a partial cross-sectional view of a display panel provided in another embodiment of this application;

[0047] Figure 13 This is a partial cross-sectional view of a display panel provided in another embodiment of this application;

[0048] Figure 14 This is a partial cross-sectional view of a display panel provided in another embodiment of this application;

[0049] Figure 15 This is a partial cross-sectional view of a display panel provided in another embodiment of this application;

[0050] Figure 16 This is a partial cross-sectional view of a display panel provided in another embodiment of this application;

[0051] Figure 17 This is a partial cross-sectional view of a display panel provided in another embodiment of this application.

[0052] Explanation of reference numerals in the attached figures:

[0053] 100. Substrate;

[0054] 200, Pixel definition layer; 210, Pixel limiting section; 220, Pixel opening; 230, Light-emitting unit; 240, Clearance opening;

[0055] 300. Isolation structure; 301. Isolation section; 302. Isolation opening; 310. Conductive section; 311. First sub-layer; 312. Second sub-layer; 313. Third sub-layer; 320. Insulating section;

[0056] 400, Functional layer; 410, First electrode; 411, First electrode section; 412, Second electrode section; 420, Touch electrode; 420a, First touch electrode; 420b, Second touch electrode; 421, First touch section; 422, Second touch section; 423, Virtual electrode; 430, Touch lead;

[0057] 500, Second electrode layer; 510, Second electrode;

[0058] TA, touch area; AA, display area; L, first reference line; X, first direction; Y, second direction. Detailed Implementation

[0059] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0060] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," etc., indicating orientation or positional relationships are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] To better understand this application, the following will be combined with... Figures 1 to 17 The display panel and display device according to embodiments of this application will be described in detail.

[0063] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a top view of a display panel provided in an embodiment of this application. Figure 2 yes Figure 1 Sectional view at point AA.

[0064] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of this application provides a display panel, which includes a substrate 100, an isolation structure 300, and a functional layer 400. The isolation structure 300 is disposed on the substrate 100 and includes an isolation portion 301 and an isolation opening 302 formed by the isolation structure 301. A light-emitting unit 230 is disposed within the isolation opening 302. The functional layer 400 includes a first electrode 410 and a touch electrode 420. The first electrode 410 is disposed within the isolation opening 302 and is located on the side of the light-emitting unit 230 away from the substrate 100. The touch electrode 420 is located on the side of the isolation portion 301 away from the substrate 100. The first electrode 410 and the touch electrode 420 are insulated from each other and spaced apart.

[0065] In the display panel provided in this embodiment, the display panel includes a substrate 100, an isolation structure 300, and a functional layer 400. The isolation structure 300 includes an isolation portion 301 and an isolation opening 302. A light-emitting unit 230 is disposed within the isolation opening 302 to achieve light emission display of the display panel. The functional layer 400 includes a first electrode 410 and a touch electrode 420. The first electrode 410 is located within the isolation opening 302 and is used to drive the light-emitting unit 230 to emit light. The touch electrode 420 is disposed on the side of the isolation portion 301 facing away from the substrate 100, so that the isolation structure 300 can isolate the touch electrode 420 and the first electrode 410 from each other, making it difficult for the first electrode 410 and the touch electrode 420 to short-circuit. Therefore, by setting the isolation structure 300, this application can divide the functional layer 400 into the first electrode 410 and the touch electrode 420, simplifying the structure of the display panel by eliminating the need for a separate touch structure layer.

[0066] Optionally, at least some of the touch electrodes 420 are provided with gaps, and correspondingly, at least some of the isolation portions 301 used to support the touch electrodes 420 are provided with gaps, and at least some of the first electrodes 410 are located in the gaps and are electrically connected to each other through the gaps.

[0067] In this embodiment of the application, by adding an isolation structure 300, not only can the functional layer 400 be divided into a first electrode 410 and a touch electrode 420, but also by setting a gap between the isolation portions 301, it can be ensured that the first electrode 410 can be interconnected into a whole-surface electrode. On the basis of simplifying the display panel structure, it also solves the problem that the same layer arrangement of the touch electrode 420 and the first electrode 410 affects the interconnection of the first electrode 410 into a whole-surface electrode.

[0068] Optionally, the display panel includes a display area AA. Here, the "full-surface electrode" does not refer to electrodes physically covering the entire surface of the display area AA, but rather electrodes interconnected with the first electrode 410 within the display area AA, with the first electrode 410 within the display area AA having the same potential. Optionally, the display panel also includes a non-display area NA surrounding the display area AA.

[0069] Optionally, the display panel 10 further includes a pixel definition layer 200, which is disposed on the substrate 100. The pixel definition layer 200 includes a pixel limiting portion 210 and a pixel opening 220 formed by the pixel limiting portion 210. The pixel opening 220 is located within the isolation opening 302, and the light-emitting unit 230 is located within the pixel opening 220.

[0070] Optionally, the display panel also includes a second electrode layer 500, which includes a second electrode 510. The second electrode 510 is located on the side of the light-emitting unit 230 facing the substrate and cooperates with the first electrode 410 to drive the light-emitting unit 230 to emit light.

[0071] Optionally, substrate 100 may include a substrate and an array substrate, the array substrate including 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 disposed on one side of the substrate and stacked thereon. An insulating layer is disposed between adjacent signal line layers. Exemplarily, the pixel driving circuit disposed 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 electrode and a second electrode. As an example, the gate and the first electrode may be located in the first signal line layer, the second electrode may be located in the second signal line layer, and the source and drain may be located in the third signal line layer.

[0072] Optionally, during the fabrication of the display panel, a functional material layer can be deposited on the isolation structure 300, with the portion falling within the isolation opening 302 of the isolation structure 300 forming the first electrode 410, and the portion falling on the isolation portion 301 of the isolation structure 300 forming the touch electrode 420. This allows the first electrode 410 and the touch electrode 420 to be fabricated in the same process step, which simplifies the fabrication process of the display panel.

[0073] Please refer to the following: Figures 1 to 3 , Figure 3 yes Figure 1 A magnified schematic diagram of the structure of the display panel. This is to more clearly demonstrate the structure of the display panel. Figure 3 The middle touch electrode 420 and the first electrode 410 are not filled with cross-sectional patterns, and the location of the pixel opening 220 is indicated by dashed lines.

[0074] The touch electrode 420 can be shaped in various ways. In some optional embodiments, such as... Figures 1 to 3 As shown, the touch electrode 420 includes a first touch portion 421 and a second touch portion 422. There are two or more first touch portions 421. The first touch portions 421 extend along a first direction X, and the two or more first touch portions 421 are interconnected through the second touch portions 422.

[0075] In these alternative embodiments, the touch electrode 420 is configured as a comb-shaped first touch portion 421 and a second touch portion 422. This increases the distribution area of ​​the touch electrode 420 and allows the first electrode 410 to be interconnected as a whole-surface electrode via the gap between adjacent first touch portions 421.

[0076] Optionally, the second touch unit 422 extends along the second direction Y and connects to the adjacent first touch unit 421.

[0077] In some alternative embodiments, such as Figure 4 As shown, at least two first touch portions 421 have unequal lengths. The touch electrode 420 may also include a virtual electrode 423. The virtual electrode 423 is disposed on one side of the shorter first touch portion 421, and the virtual electrode 423 is insulated from the first touch portion 421, the second touch portion 422, and the first electrode 410. By adding the virtual electrode 423, the area of ​​the touch electrodes 420 distributed throughout the display panel can be more evenly distributed, improving the uniformity of the display panel.

[0078] Optionally, the virtual electrode 423 is disposed on one side of the shorter first touch portion 421 in the first direction X, so that the sum of the dimensions of the virtual electrode 423 and the shorter first touch portion 421 in the first direction is close to the length of the longer first touch portion 421, thereby better improving the problem of uneven display on the display panel.

[0079] Optionally, the isolation structure 300 and the touch electrode 420 are adapted to each other in shape; for example, the isolation structure 300 exists to support the touch electrode 420. Optionally, the isolation portion 301 includes a first isolation portion and a second isolation portion, wherein the orthographic projection of the first touch portion 421 on the substrate 100 is located within the orthographic projection of the first isolation portion on the substrate 100, and the orthographic projection of the second touch portion 422 on the substrate 100 is located within the orthographic projection of the second isolation portion on the substrate 100.

[0080] In these optional embodiments, the first isolation part and the first touch part 421 are correspondingly provided, and the second isolation part and the second touch part 422 are correspondingly provided. By providing the first isolation part, the first touch part 421 and the first electrode 410 can be mutually insulated, and by providing the second isolation part, the second touch part 422 and the second electrode can be mutually insulated. Figure 3 The positions of the first isolation section and the second isolation section are not shown. The first isolation section is located in the same position as the first touch section 421, and the second isolation section is located in the same position as the second touch section 422.

[0081] Optionally, a gap is formed between adjacent first isolation portions, such that the first electrode 410 is interconnected as a whole-surface electrode through the adjacent first isolation portions.

[0082] In some optional embodiments, 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. A plurality of first electrode portions 411 are spaced apart along the second direction Y. The second electrode portion 412 is connected to two adjacent first electrode portions 411.

[0083] In these optional embodiments, the touch electrode 420 is generally comb-shaped by the first touch portion 421 and the second touch portion 422, and the first electrode 410 is generally comb-shaped by the first electrode portion 411 and the second electrode portion 412. 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 interlocked. On the one hand, this allows the touch electrode 420 and the first electrode 410 to be disposed at different positions in the display area AA, and on the other hand, it ensures that the touch electrode 420 and the first electrode 410 are mutually insulated.

[0084] Optionally, at least a portion of the second electrode portion 412 and the second touch electrode portion 422 are disposed on opposite sides of the same first touch electrode portion 421. For example, the second touch electrode portion 422 connected to a certain first touch electrode portion 421 and the second electrode portion 412 connected to the first electrode portion 411 located on both sides of the first touch electrode portion 421 are disposed on opposite sides of the first touch electrode portion 421 in the first direction X, so that the arrangement of the second electrode portion 412 and the second touch electrode portion 422 does not affect each other.

[0085] For example, please continue reading Figures 1 to 3 The display panel includes multiple touch areas TA, and each touch electrode 420 is located in each touch area TA. That is, the same touch electrode 420 is provided in each touch area TA. In the same touch area TA, the second electrode part 412 and the second touch part 422 are respectively disposed on both sides of the first electrode part 411 and the first touch part 421 in the first direction X.

[0086] In these optional embodiments, the display panel includes multiple touch areas TA, and each touch area TA is provided with a touch electrode 420 to realize the touch function of the display panel. A first electrode portion 411 is provided between adjacent first touch portions 421 of the touch electrode 420, that is, both touch electrodes 420 and first electrodes 410 are provided in the touch area TA. In the same touch area TA, a second electrode portion 412 and a second touch portion 422 are respectively provided on both sides of the first electrode portion 411 and the first touch portion 421 in the first direction X, so that the second touch portion 422 does not affect the connection of the second electrode portion 412 to the adjacent first electrode portion 411, ensuring that the first electrode portion 411 and the second electrode portion 412 are interconnected as a whole surface electrode.

[0087] Optionally, at least one row of pixel openings 220 are provided between two adjacent first touch units 421, with the first direction X being the row direction. This allows the first electrode 410 located between two adjacent first touch units 421 to drive the light-emitting unit 230 within the at least one row of pixel openings 220 to emit light.

[0088] Optional, such as Figure 4 As shown, one or more pixel openings 220 arranged along the second direction Y are provided between two adjacent first touch units 421. That is, two or more rows of pixel openings 220 are provided between two adjacent first touch units 421, so that the first electrodes 410 corresponding to two adjacent rows of pixel openings 220 can be directly electrically connected to each other, thereby reducing the overall resistance of the first electrodes 410.

[0089] In other embodiments, such as Figure 5As shown, when the touch area TA is provided with two touch electrodes 420, and the first touch portions 421 of the two touch electrodes 420 are alternately distributed along the second direction Y, and the second touch portions 422 of the two touch electrodes 420 are respectively disposed on both sides of their first touch portions 421 in the first direction X, the first electrode portion 411 can be S-shaped so that the first electrode 410 can be electrically connected to each other from the gap between the two touch electrodes 420 that are plugged into each other.

[0090] Optionally, a gap is provided between adjacent touch electrodes 420, so that the first electrode portion 411 and / or the second electrode portion 412 located in different touch areas TA can be electrically connected to each other through the gap to form a whole surface electrode.

[0091] There are various ways to configure the touch electrode 420. The touch electrode 420 can be a self-capacitive touch electrode or a mutual-capacitive touch electrode. For example, if the touch electrode 420 is a mutual-capacitive touch electrode, the touch electrode 420 includes a first touch electrode 420a and a second touch electrode 420b. Both the first touch electrode 420a and the second touch electrode 420b include a first touch portion 421 and a second touch portion 422.

[0092] Optional, such as Figures 6 to 7 As shown, when the touch electrode 420 is a mutual capacitance touch electrode 420, in at least two adjacent first touch electrodes 420a and second touch electrodes 420b, the first touch portion 421 of the first touch electrode 420a and the first touch portion 421 of the second touch electrode 420b are alternately distributed along the second direction Y.

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

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

[0095] Optional, such as Figure 5 As shown, the first electrode 410 is S-shaped. For example, a plurality of first electrode portions 411 are distributed at intervals along the second direction Y, and adjacent second electrode portions 412 along the second direction Y are disposed on both sides of the first electrode portions 411 in the first direction X and connected to the adjacent first electrode portions 411.

[0096] Optionally, the first touch electrode 420a and the second touch electrode 420b are arrayed along the first direction X and the second direction Y. One or more first touch electrodes 420a can be arranged in the second direction Y. One or more second touch electrodes 420b can be correspondingly provided for the same first touch electrode 420a. That is, the first touch part 421 of the same first touch electrode 420a can be alternately distributed with the first touch part 421 of one or more second touch electrodes 420b along the second direction Y.

[0097] In some other alternative embodiments, such as Figure 8 As shown, a plurality of second touch electrodes 420b arranged side-by-side along the second direction Y are disposed between two adjacent first touch electrodes 420a along the first direction X. In these optional embodiments, the first touch electrodes 420a and the second touch electrodes 420b are arranged side-by-side rather than intersecting, which can improve the problem of easy short-circuit connection between the first touch electrodes 420a and the second touch electrodes 420b.

[0098] In the above embodiments, optionally, the extending direction of the first touch portion 421 of the first touch electrode 420a and the extending direction of the second touch portion 422 of the second touch electrode 420b can be the same or different. The first direction X is the extending direction of the first touch portion 421 within the same touch electrode 420, and the second direction Y is the direction in which multiple first touch portions 421 within the same touch electrode 420 are arranged side-by-side. The first direction X and the second direction Y of different touch electrodes 420 can be in the same direction or opposite directions.

[0099] In some alternative embodiments, such as Figure 1 As shown, the display panel includes touch areas TA, which are arranged in an array along a first direction X and a second direction Y. The distance between two adjacent touch areas TA is the same in the first direction X and / or the second direction Y. This makes the distribution of the multiple touch areas TA more uniform, resulting in a more uniform display effect on the display panel.

[0100] Optionally, one or more touch electrodes 420 may be provided within the same touch area TA. For example, a first touch electrode 420a or a second touch electrode 420b may be provided within the same touch area TA. Alternatively, a set of first touch electrodes 420a and second touch electrodes 420b may be provided within the same touch area TA, and the first touch portion 421 of the first touch electrode 420a and the first touch portion 421 of the second touch electrode 420b are alternately distributed along the second direction Y, that is, the same touch area TA has first touch electrodes 420a and second touch electrodes 420b that are interlocked with each other.

[0101] Optionally, the number of touch electrodes 420 disposed in each of the touch areas TA is the same, so that the distribution of touch electrodes 420 in multiple touch areas TA is more uniform, thereby making the display effect of the display panel more uniform.

[0102] In some alternative embodiments, such as Figure 1 and Figure 9 , Figure 10 As shown, 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. The functional layer 400 also includes touch leads 430 connecting each touch electrode 420. The touch leads 430 are located on the side of the isolation portion 301 away from the substrate 100. The multiple touch leads 430 extend to at least both sides of the display area AA of the display panel.

[0103] 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 touch signals through each touch lead 430. The multiple touch leads 430 extend to at least both 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.

[0104] Optional, Figure 9 and Figure 10 The diagram only shows the positions of the touch electrode 420 and touch lead 430 in the functional layer 400. The first electrode 410 can be set at a position other than the touch electrode 420 and touch lead 430.

[0105] Optionally, multiple touch electrodes 420 are arrayed along a first direction X and a second direction Y. The display area AA of the display panel and the multiple touch electrodes 420 are symmetrically arranged about a first reference line L along the second direction Y. The touch leads 430 connected to the touch electrodes 420 on both sides of the first reference line L extend in a direction away from the first reference line L. This makes the distribution of the touch electrodes 420 and touch leads 430 more uniform on the one hand, and makes the extension distance of the touch leads 430 smaller on the other hand, thus improving the display effect while ensuring the transmission of touch signals.

[0106] Optional, such as Figure 9 As shown, when an even number of touch electrodes 420 are arranged in the same row, the first direction X is the row direction, and the even number of touch electrodes 420 are arranged on both sides of the first reference line L.

[0107] Optional, such as Figure 10 As shown, when an odd number of touch electrodes 420 are arranged in the same row, at least one column of touch electrodes 420 is symmetrically arranged about the first reference line L. That is, the first reference line L overlaps with the multiple touch electrodes 420 arranged along the second direction Y. Then, the touch lead 430 connected to the touch electrode 420 that overlaps with the first reference line L extends to both sides of the display area AA in the second direction Y, making the wiring of the touch lead 430 more uniform and further improving the display effect of the display panel.

[0108] Optional, such as Figure 9 and Figure 10 As shown, when multiple touch leads 430 extend from the same side of the display panel, at least some of the touch leads 430 may be arranged side-by-side. For example... Figure 9 As shown, there are two touch leads 430 arranged side by side on the outer side of multiple touch electrodes 420. Optionally, at least a portion of the first electrode 410 is located between at least a portion of two adjacent touch leads 430 arranged side by side. That is, the first electrode 410 can be arranged between adjacent touch leads 430 arranged side by side to increase the distribution area of ​​the first electrode 410, so that the first electrodes 410 can be interconnected to form a whole surface electrode.

[0109] Optionally, the isolation structure 300 can be disposed on the substrate 100 in various ways, for example, such as Figure 2 As shown, the isolation structure 300 can be disposed on the side of the pixel defining portion 210 facing away from the substrate 100. During the fabrication process of the display panel, after the pixel defining layer 200 is formed, the isolation structure 300 can be fabricated on the pixel defining portion 210. The fabrication method of the isolation structure 300 is simple and convenient.

[0110] In some other alternative embodiments, such as Figure 11As shown, the isolation structure 300 can be directly disposed on the surface of the substrate 100. For example, the pixel definition layer 200 is also provided with an isolation opening 240, which is formed by the pixel limiting portion 210. At least a portion of the substrate 100 is exposed through the isolation opening 240, so that the isolation structure 300 can be directly disposed on the substrate 100 exposed through the isolation opening 240. Optionally, the isolation structure 300 and the pixel limiting portion 210 are spaced apart 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 limiting portion 210, and makes it difficult for the first electrode 410 and the touch electrode 420 to be short-circuited.

[0111] In some other embodiments, such as Figure 12 As shown, the substrate 100 includes a metal layer 110 and an insulating dielectric layer 120 located between the metal layer 110 and the pixel defining layer 200. The pixel defining portion 210 further encloses an isolation opening 240. The insulating dielectric layer 120 has a clearance opening communicating with the isolation opening 240. The isolation structure 300 is located within the clearance opening and the isolation opening 240. The metal layer 110 and at least a portion 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 described above, or the metal layer 110 can be a separately provided signal line layer. The insulating dielectric layer 120 can be a planarization layer, an inter-gate insulating dielectric layer, etc.

[0112] In some other embodiments, such as Figure 13 As shown, the isolation portion 301 is formed by a recess in the surface of the pixel defining portion 210 away from the substrate 100. That is, the isolation portion 301 is a partition groove, which creates a step difference between the upper surface of the pixel defining portion 210 away from the substrate 100 and the bottom surface of the partition groove, allowing the first electrode 410 and the touch electrode 420 to be disconnected from each other at the edge of the partition groove during the fabrication of the functional layer 400. Optionally, the cross-sectional size of the isolation portion 301 gradually increases along the direction close to the substrate 100; the cross-sectional size of the partition groove gradually increases along the direction close to the substrate 100, allowing the inner wall surface of the partition groove to be recessed, making it easier for the first electrode 410 and the touch electrode 420 to be disconnected at the edge of the partition groove.

[0113] Optionally, the partition groove (i.e., the isolation section 301) is provided through the pixel definition layer 200 to increase the depth of the partition groove, making it easier for the first electrode 410 and the touch electrode 420 to disconnect at the edge of the partition groove.

[0114] Optionally, the partition groove (i.e., the isolation portion 301) may also extend from the pixel defining layer 200 into the interior of the substrate 100. For example, the substrate 100 may also include a planarization layer, and the partition groove is disposed through the pixel defining portion 210 and at least part of the planarization layer to further increase the depth of the partition groove, making it easier for the first electrode 410 and the touch electrode 420 to disconnect at the edge of the partition groove.

[0115] In some optional embodiments, the isolation structure 300 includes a conductive portion 310 and an insulating portion 320 located on the side of the conductive portion 310 away from the substrate 100. The touch electrode 420 is located on the side of the insulating portion 320 away from the substrate 100, and the first electrode 410 and the conductive portion 310 are electrically connected to each other.

[0116] In these alternative embodiments, the first electrode 410 and the conductive portion 310 are electrically connected to each other, so that the first electrode 410 can be interconnected as a surface electrode through the conductive portion 310, thereby reducing the impedance of the first electrode 410.

[0117] There are various ways to configure 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 organic insulating materials and / or inorganic insulating materials.

[0118] Optionally, the orthographic projection of the conductive portion 310 onto the substrate 100 is located within the orthographic projection of the insulating portion 320 onto the substrate 100, that is, the size of the conductive portion 310 is less than or equal to the size of the insulating portion 320, so that a step can be formed between the conductive portion 310 and the insulating portion 320, or a concave shape can be formed on one side of the conductive portion 310, and the functional layer 400 can be broken at the edge of the isolation structure 300 to form the first electrode 410 and the touch electrode 420.

[0119] Optional, such as Figure 2 and Figure 11 As shown, the conductive portion 310 includes a first sub-layer 311 and a second sub-layer 312 located on the side of the first sub-layer 311 facing away from the substrate 100. The first sub-layer 311 and the first electrode 410 are electrically connected to each other. The orthographic projection of the first sub-layer 311 onto the substrate 100 lies within the orthographic projection of the second sub-layer 312 onto the substrate 100, and the orthographic projection of the second sub-layer 312 onto the substrate 100 lies within the orthographic projection of the insulating portion 320 onto the substrate 100. That is, the size of the first sub-layer 311 is less than or equal to that of the second sub-layer 312, making it easier for the functional layer 400 to break at the edge of the isolation structure 300 to form the first electrode 410 and the touch electrode 420.

[0120] Optional, such as Figure 11As shown, the conductive portion 310 also includes a third sublayer 313 located on the side of the first sublayer 311 facing the substrate 100. The orthographic projection of the first sublayer 311 onto the substrate 100 is located within the orthographic projection of the third sublayer 313 onto the substrate 100. That is, the size of the first sublayer 311 is less than or equal to the size of the third sublayer 313, making it easier for the first electrode 410 to climb up to the first sublayer 311 via the third sublayer 313 and be electrically connected to the first sublayer 311.

[0121] Optionally, the second sub-layer 312 and the third sub-layer 313 are made of the same material, which can simplify the manufacturing process of the display panel.

[0122] Optional, such as Figure 14 As shown, the conductive portion 310 is a single-layer structure. The cross-sectional area of ​​the conductive portion 310 gradually decreases from the direction of approach to the substrate 100, allowing a concave shape to be formed on one side of the conductive portion 310. The first electrode 410 and the touch electrode 420 can be disconnected at the edge of the conductive portion 310. Optionally, the cross-sectional area of ​​the isolation portion 301 gradually decreases from the direction of approach to the substrate 100, and the isolation portion 301 is formed using a negative adhesive.

[0123] As described above, the material of the insulating portion 320 includes organic and / or inorganic materials. Optionally, such as... Figure 11 As shown, the light-emitting unit 230 includes a charge carrier layer. The material of the insulating portion 320 and the material of the charge carrier layer can be the same, so that the insulating portion 320 and the charge carrier layer can be fabricated in the same process step. The charge carrier layer may include 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.

[0124] Or, such as Figure 15 As shown, the material of the insulating portion 320 includes inorganic materials, making the thickness of the insulating portion 320 relatively thin, or, as... Figure 16 As shown, the material of the insulating portion 320 includes organic materials, resulting in a relatively thick insulating portion 320. Alternatively, as... Figure 17 As shown, the material of the insulating part 320 includes organic and inorganic materials, that is, the insulating part 320 includes two sub-layers to further increase the thickness of the insulating part 320, so that the first electrode 410 and the touch electrode 420 can be disconnected at the edge of the isolation structure 300.

[0125] The second aspect of this application also provides a display device, including the display panel of any of the first aspect embodiments described above. Since the display device provided in the second aspect of this application includes the display panel of any of the first aspect embodiments described above, it has the beneficial effects of the display panel of any of the first aspect embodiments described above, which will not be elaborated further here.

[0126] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0127] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This 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; An isolation structure is disposed on the substrate, the isolation structure includes an isolation portion and an isolation opening formed by the isolation portion, and a light-emitting unit is disposed within the isolation opening; The functional layer includes a first electrode and a touch electrode. The first electrode is disposed in the isolation opening and located on the side of the light-emitting unit opposite to the substrate. The touch electrode is located on the side of the isolation portion opposite to the substrate, and the first electrode and the touch electrode are insulated from each other and spaced apart. The touch electrode includes a second touch portion and two or more first touch portions. The first touch portions extend along a first direction, and the two or more first touch portions are connected through the second touch portion. 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, and multiple first electrode portions are spaced apart along a second direction. The second electrode portion is connected to two adjacent first electrode portions.

2. The display panel according to claim 1, characterized in that, The isolation portion includes a first isolation portion and a second isolation portion, wherein the first touch portion is located within the orthographic projection of the first isolation portion on the substrate, and the second touch portion is located within the orthographic projection of the second isolation portion on the substrate.

3. The display panel according to claim 1, characterized in that, At least two of the first touch portions have different extension lengths in the first direction. The touch electrode also includes a virtual electrode disposed on one side of the shorter first touch portion. The virtual electrode is insulated from the first touch portion, the second touch portion, and the first electrode.

4. The display panel according to claim 1, characterized in that, At least a portion of the second electrode portion and the second touch portion are disposed on both sides of the same first touch portion in the first direction.

5. The display panel according to claim 1, characterized in that, One or more pixel openings are provided between two adjacent first touch units, arranged along a second direction, which intersects with the first direction.

6. The display panel according to claim 1, characterized in that, The touch electrode is a mutual capacitance touch electrode, which includes a first touch electrode and a second touch electrode. Both the first touch electrode and the second touch electrode include a first touch portion and a second touch portion.

7. The display panel according to claim 6, characterized in that, In at least two adjacent first touch electrodes and second touch electrodes, the first touch portion of the first touch electrode and the first touch portion of the second touch electrode are alternately distributed along the second direction; Alternatively, a plurality of second touch electrodes arranged side by side along the second direction may be provided between two adjacent first touch electrodes along the first direction.

8. The display panel according to claim 1, characterized in that, The display panel includes multiple touch areas, each of which is provided with a touch electrode. The multiple touch areas are arranged in an array along a first direction and a second direction, and the distance between two adjacent touch areas is the same in the first direction and / or the second direction.

9. The display panel according to claim 8, characterized in that, The number of touch electrodes provided in each of the aforementioned touch areas is the same.

10. The display panel according to claim 1, characterized in that, The touch electrode is located in the display area of ​​the display panel. The touch electrode is a self-capacitive touch electrode. The functional layer also includes touch leads connecting each touch electrode. The touch leads are located on the side of the isolation portion away from the substrate. The plurality of touch leads extend to at least both sides of the display area of ​​the display panel.

11. The display panel according to claim 10, characterized in that, The plurality of touch electrodes are arrayed along a first direction and a second direction. The display area of ​​the display panel and the plurality of touch electrodes are symmetrically arranged about a first reference line along the second direction. The touch leads connected to the touch electrodes located on both sides of the first reference line extend in a direction away from the first reference line.

12. The display panel according to claim 11, characterized in that, The first reference line overlaps with a plurality of touch electrodes arranged along the second direction, and the touch leads connected to the touch electrodes that overlap with the first reference line extend to both sides of the display area in the second direction.

13. The display panel according to claim 10, characterized in that, At least a portion of the first electrode is located between at least a portion of two adjacent touch leads.

14. The display panel according to claim 1, characterized in that, Also includes: A pixel definition layer, the pixel definition layer including a pixel defining portion and a pixel opening formed by the pixel defining portion, the isolation portion being disposed around the pixel opening, and the light-emitting unit being located inside the pixel opening; The isolation structure is disposed on the side of the pixel limiting portion opposite to the substrate; Alternatively, the pixel defining portion may further enclose a clearance opening, and the isolation structure is located in the clearance opening and is spaced apart from the inner wall surface of the pixel defining portion toward the clearance opening; 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 further surrounds a clearance opening, the insulating dielectric layer has a communication port, the communication port and the clearance opening are connected, the isolation structure is disposed within the clearance opening and the communication port, and the metal layer and at least a portion of the isolation portion are made of the same material; Alternatively, the isolation portion is formed by a recess in the surface of the pixel defining portion away from the substrate.

15. The display panel according to claim 1, characterized in that, The isolation structure includes a conductive portion and an insulating portion located on the side of the conductive portion away from the substrate. The touch electrode is located on the side of the insulating portion away from the substrate, and the first electrode and the conductive portion are electrically connected to each other.

16. The display panel according to claim 15, characterized in that, The insulating part includes an inorganic insulating layer and / or an organic insulating layer.

17. The display panel according to claim 15, characterized in that, The conductive portion is projected onto the substrate in a direction that lies within the projection of the insulating portion onto the substrate.

18. The display panel according to claim 15, characterized in that, The conductive portion includes a first sublayer and a second sublayer located on the side of the first sublayer facing away from the substrate. The first sublayer and the first electrode are electrically connected to each other. The orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the second sublayer on the substrate. The orthographic projection of the second sublayer on the substrate is located within the orthographic projection of the insulating portion on the substrate.

19. The display panel according to claim 18, characterized in that, The conductive portion further includes a third sublayer located on the side of the first sublayer facing the substrate, wherein the orthographic projection of the first sublayer onto the substrate is within the orthographic projection of the third sublayer onto the substrate.

20. The display panel according to claim 19, characterized in that, The second sublayer and the third sublayer are made of the same material.

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

Images