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 isolation structure is arranged on the substrate, the isolation structure comprises an isolation part and an isolation opening defined by the isolation part, and a light emitting unit is arranged in the isolation opening; the functional layer comprises a first electrode and a touch electrode, the first electrode is arranged in the isolation opening and located on the side, away from the substrate, of the light-emitting unit, the touch electrode is located on the side, away from the substrate, of the isolation part, and the first electrode and the touch electrode are arranged in a mutually insulated and spaced mode. By arranging the isolation structure, the functional layer can be divided into the first electrode and the touch electrode, a touch structure layer does not need to be independently arranged, and the structure 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; an isolation structure, which is arranged 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 arranged in the isolation opening; a functional layer, which includes a first electrode and a touch electrode, the first electrode is arranged in the isolation opening and is located on a side of the light-emitting unit away from the substrate, and the touch electrode is located on a side of the isolation portion away from the substrate, and the first electrode and the touch electrode are arranged with insulation and spacing from each other.

[0006] According to an implementation of the first aspect of the present application, the touch electrode includes a second touch portion and two or more first touch portions, the first touch portion extends along a first direction, and the two or more first touch portions are connected in the first direction and the second direction through the second touch portion.

[0007] According to any of the aforementioned embodiments of the first aspect of the present 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 aforementioned embodiments of the first aspect of the present application, at least two first touch portions have different extension lengths in the first direction, and the touch electrode also includes a virtual electrode, which is arranged on one side of the first touch portion with a shorter length, and the virtual electrode is insulated from the first touch portion, the second touch portion and the first electrode.

[0009] According to any of the aforementioned embodiments of the first aspect of the present 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, the multiple first electrode portions are arranged at intervals along the second direction, and the second electrode portion connects the two adjacent first electrode portions.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, at least part of the second electrode portion and the second touch electrode portion are arranged on both sides of the same first touch electrode portion in the first direction.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, one or more pixel openings arranged along the 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 aforementioned implementations of the first aspect of the present application, the touch electrode is a mutual capacitance touch electrode, the touch electrode includes a first touch electrode and a second touch electrode, and the first touch electrode and the second touch electrode both include a first touch portion and a second touch portion.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, in at least two adjacent first touch electrodes and second touch electrodes, the first touch portions of the first touch electrodes and the first touch portions of the second touch electrodes are alternately distributed along the second direction;

[0014] Alternatively, a plurality of second touch electrodes arranged side by side along the second direction are arranged between two first touch electrodes adjacent to each other along the first direction.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the display panel includes multiple touch areas, each touch area is provided with a touch electrode, the multiple touch areas are distributed in an array along the first direction and the second direction, and the distance between two adjacent touch areas in the first direction and / or the second direction is the same.

[0016] According to any of the aforementioned implementations of the first aspect of the present application, the number of touch electrodes arranged in each touch area is the same.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, 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 the touch electrodes, the touch leads are located on the side of the isolation portion away from the substrate, and multiple touch leads extend to at least two sides of the display area of ​​the display panel.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the plurality of touch electrodes are distributed in rows and columns along the first direction and the 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 connecting the touch electrodes located on both sides of the first reference line are extended in a direction away from the first reference line.

[0019] According to any of the aforementioned embodiments of the first aspect of the present application, 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 overlapping with the first reference line extend to both sides of the display area in the second direction.

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

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the invention further comprises: a pixel definition layer, the pixel definition layer comprising a pixel definition portion and a pixel opening formed by the pixel definition portion, the isolation portion is arranged around the pixel opening, and the light emitting unit is located in the pixel opening;

[0022] The isolation structure is arranged on a side of the pixel defining portion away from the substrate;

[0023] Alternatively, 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;

[0024] Alternatively, the substrate includes a metal layer and an insulating medium layer located between the metal layer and the pixel definition layer, the pixel definition portion further encloses a clearance opening, the insulating medium layer is provided with a communication port, the communication port and the clearance opening are connected, the isolation structure is arranged in the clearance opening and the communication port, and the metal layer and at least part of the isolation portion are arranged with the same material;

[0025] Alternatively, the isolation portion is formed by a surface depression 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 isolation structure includes a conductive portion and an insulating portion located on the side of the conductive portion facing away from the substrate, the touch electrode is located on the side of the insulating portion facing away from the substrate, and the first electrode and the conductive portion are electrically connected to each other.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, the insulating part includes an inorganic insulating layer and / or an organic insulating layer.

[0028] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the conductive portion on the substrate is located within the orthographic projection of the insulating portion on the substrate.

[0029] According to any of the aforementioned embodiments of the first aspect of the present 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, and 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 aforementioned embodiments of the first aspect of the present application, the conductive portion further includes a third sublayer located on the side of the first sublayer facing the substrate, and the orthographic projection of the first sublayer on the substrate is located within the orthographic projection of the third sublayer on the substrate.

[0031] According to any of the aforementioned embodiments of the first aspect of the present application, the second sub-layer and the third sub-layer are made of the same material.

[0032] 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.

[0033] In the display panel provided in the embodiment of the present application, the display panel includes a substrate, an isolation structure and a functional layer, the isolation structure includes an isolation portion and an isolation opening, and a light-emitting unit is arranged in the isolation opening to realize the light-emitting 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 is arranged on the light-emitting unit to drive the light-emitting unit to emit light, and the touch electrode is arranged 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, the present application can divide the functional layer into a first electrode and a touch electrode, and there is no need to set a touch structure layer separately to simplify the structure of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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.

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

[0036] Figure 2 yes Figure 1 Sectional view at AA in the middle;

[0037] Figure 3 yes Figure 1 A schematic diagram of a partially enlarged structure in an example;

[0038] Figure 4 yes Figure 1 A schematic diagram of a partially enlarged structure in another example;

[0039] Figure 5 yes Figure 1 A schematic diagram of a partially enlarged structure in yet another example;

[0040] Figure 6 yes Figure 1 A schematic diagram of a partially enlarged structure in yet another example;

[0041] Figure 7 yes Figure 1 A schematic diagram of a partially enlarged structure in yet another example;

[0042] Figure 8 yes Figure 1 A schematic diagram of a partially enlarged structure in yet another example;

[0043] Fig. 9 is a top view of a display panel provided in another embodiment of the present application;

[0044] Fig.10 is a top view of a display panel provided in another embodiment of the present application;

[0045] Fig.11 is a partial cross-sectional view of a display panel provided in an embodiment of the present application;

[0046] Fig.12 is a partial cross-sectional view of a display panel provided by another embodiment of the present application;

[0047] Fig.13 is a partial cross-sectional view of a display panel provided in another embodiment of the present application;

[0048] Fig.14 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0049] Fig.15 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0050] Fig.16 is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application;

[0051] Fig.17 This is a partial cross-sectional view of a display panel provided in yet another embodiment of the present application.

[0052] Description of reference numerals:

[0053] 100. Substrate;

[0054] 200, pixel definition layer; 210, pixel definition portion; 220, pixel opening; 230, light emitting unit; 240, clearance opening;

[0055] 300, isolation structure; 301, isolation part; 302, isolation opening; 310, conductive part; 311, first sublayer; 312, second sublayer; 313, third sublayer; 320, insulating part;

[0056] 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; 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 DESCRIPTION

[0059] 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.

[0060] 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.

[0061] 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.

[0062] In order to better understand this application, Figures 1 to 17 The display panel and the display device according to the embodiments of the present application are described in detail.

[0063] Please also read Figure 1 and Figure 2 , Figure 1 A top 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.

[0064] like Figure 1 and Figure 2 As shown, an embodiment of the first aspect of the present 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 the isolation structure 300 includes an isolation portion 301 and an isolation opening 302 formed by the isolation structure 301, and a light-emitting unit 230 is disposed in the isolation opening 302; the functional layer 400 includes a first electrode 410 and a touch electrode 420, the first electrode 410 is disposed in the isolation opening 302 and is located on a side of the light-emitting unit 230 away from the substrate 100, and the touch electrode 420 is located on a side of the isolation portion 301 away from the substrate 100, and the first electrode 410 and the touch electrode 420 are disposed insulated from each other.

[0065] In the display panel provided in the embodiment of the present application, 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. The light-emitting unit 230 is arranged in the isolation opening 302 to realize the light-emitting display of the display panel. The functional layer 400 includes a first electrode 410 and a touch electrode 420. The first electrode 410 is used to drive the light-emitting unit 230 to emit light in the isolation opening 302. The touch electrode 420 is arranged on the side of the isolation portion 301 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, and the first electrode 410 and the touch electrode 420 are not easily short-circuited. Therefore, by setting the isolation structure 300, the present application can divide the functional layer 400 into the first electrode 410 and the touch electrode 420, and there is no need to set a touch structure layer separately to simplify the structure of the display panel.

[0066] Optionally, gaps are provided between at least some of the touch electrodes 420 , and correspondingly, gaps are provided between at least some of the isolation portions 301 for supporting the touch electrodes 420 , and at least some of the first electrodes 410 are located in the gaps and electrically connected to each other via the gaps.

[0067] In the embodiment of the present application, by adding the isolation structure 300, not only can the functional layer 400 be divided into the first electrode 410 and the touch electrode 420, but also by setting a gap between the isolation parts 301, it can be ensured that the first electrodes 410 can be interconnected to form a whole-surface electrode. On the basis of simplifying the display panel structure, the problem that the touch electrode 420 and the first electrode 410 are arranged in the same layer, which affects the interconnection of the first electrode 410 into a whole-surface electrode, is solved.

[0068] Optionally, the display panel includes a display area AA, where the entire surface electrode is not an electrode laid on the entire surface in a physical structure, that is, it is not an electrode laid on the entire surface of the display area AA, but the first electrodes 410 in the display area AA are interconnected, and the first electrodes 410 in the display area AA have the same potential. Optionally, the display panel also includes a non-display area NA arranged around the display area AA.

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

[0070] Optionally, the display panel further includes a second electrode layer 500 , which includes a second electrode 510 , which is located on a 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, 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.

[0072] Optionally, during the preparation of the display panel, a functional material layer can be deposited on the isolation structure 300, and the portion falling within the isolation opening 302 of the isolation structure 300 forms a first electrode 410, and the portion falling on the isolation portion 301 of 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.

[0073] Please also read Figures 1 to 3 , Figure 3 yes Figure 1 In order to show the structure of the display panel more clearly, 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 a dotted line.

[0074] There are many ways to set the shape of the touch electrode 420. In some optional embodiments, for example Figures 1 to 3 As shown, the touch electrode 420 includes a first touch portion 421 and a second touch portion 422 . There are more than two first touch portions 421 . The first touch portions 421 extend along the first direction X. The more than two first touch portions 421 are connected to each other through the second touch portions 422 .

[0075] In these optional embodiments, the touch electrode 420 is configured as a first touch portion 421 and a second touch portion 422 to be comb-shaped. On the one hand, the distribution area of ​​the touch electrode 420 can be increased, and on the other hand, the first electrodes 410 can be connected to each other through the gaps between adjacent first touch portions 421 to form a full-surface electrode.

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

[0077] In some optional embodiments, such as Figure 4 As shown, at least two first touch portions 421 have different lengths, and the touch electrode 420 may further include a virtual electrode 423, which is disposed on one side of the first touch portion 421 having a shorter length, 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 at various locations of the display panel can be more balanced, thereby improving the uniformity of the display of the display panel.

[0078] Optionally, the virtual electrode 423 is arranged on one side of the shorter first touch portion 421 in the first direction X, so that the sum of the sizes 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 of the display panel.

[0079] Optionally, the isolation structure 300 and the touch electrode 420 are adapted in shape, that is, 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, 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 portion and the first touch portion 421 are provided correspondingly, and the second isolation portion and the second touch portion 422 are provided correspondingly. By providing the first isolation portion, mutual insulation between the first touch portion 421 and the first electrode 410 can be achieved, and by providing the second isolation portion, mutual insulation between the second touch portion 422 and the second electrode can be achieved. Figure 3 The positions of the first isolation portion and the second isolation portion are not shown in the figure. The first isolation portion is disposed at the same position as the first touch portion 421 , and the second isolation portion is disposed at the same position as the second touch portion 422 .

[0081] Optionally, gaps are formed between adjacent first isolation portions, so that the first electrodes 410 are interconnected through adjacent first isolation portions to form a full-surface electrode.

[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 , 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 .

[0083] In these optional embodiments, the touch electrode 420 is roughly comb-shaped by setting the first touch portion 421 and the second touch portion 422, and the first electrode 410 is roughly comb-shaped by setting 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 plugged into each other. On the one hand, the touch electrode 420 and the first electrode 410 can be set at different positions in the display area AA, and on the other hand, it can ensure that the touch electrode 420 and the first electrode 410 are insulated from each other.

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

[0085] For example, see Figures 1 to 3 The display panel includes multiple touch areas TA, each touch electrode 420 is located in each touch area TA, that is, the same touch electrode 420 is arranged in each touch area TA, and in the same touch area TA, the second electrode portion 412 and the second touch portion 422 are respectively arranged on both sides of the first electrode portion 411 and the first touch portion 421 in the first direction X.

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

[0087] Optionally, 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.

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

[0089] In other embodiments, Figure 5As shown, when two touch electrodes 420 are provided in the touch area TA, 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 arranged on both sides of the first touch portions 421 thereof 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 through the gap between the two touch electrodes 420 inserted into each other.

[0090] Optionally, gaps are provided between adjacent touch electrodes 420 , so that the first electrode portions 411 and / or the second electrode portions 412 located in different touch areas TA can be electrically connected to each other through the gaps to form full-surface electrodes.

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

[0092] Optional, such as Figure 6 to Figure 7 As shown, when the touch electrode 420 is a mutual capacitive touch electrode 420, in at least two adjacent first touch electrodes 420a and second touch electrodes 420b, the first touch portions 421 of the first touch electrode 420a and the first touch portions 421 of the second touch electrode 420b 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 touch portion 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 touch portion of the second touch electrode 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 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 other optional embodiments, Figure 8 As shown, a plurality of second touch electrodes 420b arranged side by side along the second direction Y are arranged between two first touch electrodes 420a adjacent to each other 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 crosswise, 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 embodiment, optionally, the extension direction of the first touch portion 421 of the first touch electrode 420a and the extension direction of the second touch portion 422 of the second touch electrode 420b may be the same or different. The first direction X is the extension direction of the first touch portion 421 in the same touch electrode 420, and the second direction Y is the side-by-side arrangement direction of multiple first touch portions 421 in the same touch electrode 420. The first direction X and the second direction Y of different touch electrodes 420 may be in the same direction or in different directions.

[0099] In some optional embodiments, such as Figure 1 As shown, the display panel includes a touch area TA, and a plurality of touch areas TA are distributed in an array along a first direction X and a second direction Y, and the distance between two adjacent touch areas TA in the first direction X and / or the second direction Y is the same. This makes the distribution of the plurality of touch areas TA more uniform, so that the display effect of the display panel is more uniform.

[0100] Optionally, one or more touch electrodes 420 may be provided in the same touch area TA. For example, one first touch electrode 420a or one second touch electrode 420b may be provided in the same touch area TA. Alternatively, a group of first touch electrodes 420a and second touch electrodes 420b may be provided in the same touch area TA, and the first touch portions 421 of the first touch electrodes 420a and the first touch portions 421 of the second touch electrodes 420b are alternately distributed along the second direction Y, that is, the first touch electrodes 420a and the second touch electrodes 420b that are plugged into each other are provided in the same touch area TA.

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

[0102] In some optional embodiments, such as Figure 1 and Fig. 9 , Fig.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 a touch lead 430 connecting each touch electrode 420. The touch lead 430 is located on the side of the isolation portion 301 away from the substrate 100. Multiple touch leads 430 extend to at least two 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 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.

[0104] Optional, Fig. 9 and Fig.10 Only the positions of the touch electrodes 420 and the touch leads 430 in the functional layer 400 are schematically shown, and the first electrode 410 may be disposed at positions other than the touch electrodes 420 and the touch leads 430 .

[0105] Optionally, the plurality of touch electrodes 420 are distributed in an array along the first direction X and the second direction Y, the display area AA of the display panel and the plurality of touch electrodes 420 are symmetrically arranged about a first reference line L along the second direction Y, and the touch leads 430 connected to the touch electrodes 420 located on both sides of the first reference line L are extended in a direction away from the first reference line L. On the one hand, the distribution of the touch electrodes 420 and the touch leads 430 is more uniform, and on the other hand, the extension distance of the touch leads 430 is shortened, so that the transmission of the touch signal can be ensured while improving the display effect.

[0106] Optional, such as Fig. 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 Fig.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 are symmetrically arranged about the first reference line L, that is, the first reference line L is overlapped with the multiple touch electrodes 420 arranged along the second direction Y, then the touch leads 430 connected to the touch electrodes 420 overlapping with the first reference line L extend to both sides of the display area AA in the second direction Y, so that the wiring of the touch leads 430 is more uniform, which can further improve the display effect of the display panel.

[0108] Optional, such as Fig. 9 and Fig.10 As shown in FIG. 1 , when a plurality of touch leads 430 are led out from the same side of the display panel, at least some of the plurality of touch leads 430 may be arranged side by side. Fig. 9 As shown, there are two touch leads 430 arranged side by side outside the plurality of touch electrodes 420. Optionally, at least part of the first electrode 410 is located between two adjacent touch leads 430 that are at least partially arranged side by side. In other words, the first electrode 410 can be arranged between the side-by-side and adjacent touch leads 430 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, there are many ways to set the isolation structure 300 on the substrate 100, for example, Figure 2 As 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.

[0110] In some other optional embodiments, Fig.11As 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.

[0111] In some other embodiments, Fig.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 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.

[0112] In some other embodiments, Fig.13 As shown, the isolation portion 301 is formed by a surface depression of the pixel defining portion 210 away from the substrate 100. That is, the isolation portion 301 is a partition groove, through which a step difference is formed between the upper surface of the pixel defining portion 210 away from the substrate 100 and the bottom surface of the partition groove, so that the first electrode 410 and the touch electrode 420 are disconnected from each other at the edge of the partition groove when the functional layer 400 is prepared. Optionally, the cross-sectional size of the isolation portion 301 gradually increases in the direction close to the substrate 100; in the direction close to the substrate 100, that is, the cross-sectional size of the partition groove gradually increases, so that the inner wall surface of the partition groove can form an inward concave, so that the first electrode 410 and the touch electrode 420 are more easily disconnected at the edge of the partition groove.

[0113] Optionally, the partition groove (ie, the isolation portion 301 ) is disposed through the pixel definition layer 200 to increase the depth of the partition groove, so that the first electrode 410 and the touch electrode 420 are more easily disconnected at the edge of the partition groove.

[0114] Optionally, the partition groove (i.e., the isolation portion 301) may also extend from the pixel definition layer 200 to the inside of the substrate 100. For example, the substrate 100 further includes a planarization layer, and the partition groove penetrates the pixel definition portion 210 and at least a portion of the planarization layer to further increase the depth of the partition groove, so that the first electrode 410 and the touch electrode 420 are more easily disconnected 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 optional 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 to form a surface electrode through the conductive portion 310 , which can reduce the impedance of the first electrode 410 .

[0117] 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.

[0118] Optionally, the orthographic projection of the conductive part 310 on the substrate 100 is located within the orthographic projection of the insulating part 320 on the substrate 100, that is, the size of the conductive part 310 is less than or equal to the size of the insulating part 320, so that a step difference can be formed between the conductive part 310 and the insulating part 320, or one side of the conductive part 310 can form a concave, 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 Fig.11 As shown, the conductive part 310 includes a first sublayer 311 and a second sublayer 312 located on the side of the first sublayer 311 away from the substrate 100, the first sublayer 311 and the first electrode 410 are electrically connected to each other, 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, and the orthographic projection of the second sublayer 312 on the substrate 100 is located within the orthographic projection of the insulating part 320 on the substrate 100. That is, the size of the first sublayer 311 is smaller than or equal to the second sublayer 312, so that the functional layer 400 is more likely 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 Fig.11As shown, the conductive part 310 also includes a third sublayer 313 located on the side of the first sublayer 311 facing the substrate 100, and 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, that is, the size of the first sublayer 311 is less than or equal to the size of the third sublayer 313, so that the first electrode 410 can more easily climb to the first sublayer 311 through the third sublayer 313 and be electrically connected to the first sublayer 311.

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

[0122] Optional, such as Fig.14 As shown, the conductive part 310 is a single-layer structure, and the cross-sectional area of ​​the conductive part 310 gradually decreases in the direction from the conductive part 310 to the substrate 100, so that one side of the conductive part 310 can form a concave, and the first electrode 410 and the touch electrode 420 can be disconnected at the edge of the conductive part 310. For example, optionally, the cross-sectional area of ​​the isolation part 301 gradually decreases in the direction from the isolation part 301 to the substrate 100, and the isolation part 301 is prepared and formed by a negative adhesive.

[0123] As described above, the material of the insulating portion 320 includes organic material and / or inorganic material. Fig.11 As shown, the light-emitting unit 230 includes a carrier layer, and the material of the insulating portion 320 and the material of the carrier layer can be the same, so that the insulating portion 320 and the carrier layer can be prepared and formed in the same process step. The carrier layer can 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, if Fig.15 As shown, the material of the insulating portion 320 includes an inorganic material, so that the thickness of the insulating portion 320 is relatively thin, or, as shown in FIG. Fig.16 As shown, the material of the insulating portion 320 includes an organic material, so that the thickness of the insulating portion 320 is relatively thick. Fig.17 As shown, the material of the insulating part 320 includes an organic material and an inorganic material, 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 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.

[0126] 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.

[0127] 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; An isolation structure, disposed on the substrate, the isolation structure comprising an isolation portion and an isolation opening formed by the isolation portion, wherein a light-emitting unit is disposed in the isolation opening; The functional layer includes a first electrode and a touch electrode, wherein the first electrode is arranged in the isolation opening and is located on a side of the light-emitting unit away from the substrate, and the touch electrode is located on a side of the isolation portion away from the substrate, and the first electrode and the touch electrode are arranged in an insulated manner.

2. The display panel according to claim 1, characterized in that: 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 via the second touch portions; Preferably, 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; Preferably, at least two of the first touch parts have different extension lengths in the first direction, and the touch electrode further includes a virtual electrode disposed on one side of the shorter first touch part, and the virtual electrode is insulated from the first touch part, the second touch part and the first electrode.

3. The display panel according to claim 2, characterized in that: 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 the first electrode portions are arranged at intervals along the second direction, and the second electrode portion connects two adjacent first electrode portions; Preferably, at least part of the second electrode portion and the second touch electrode portion are arranged in the first direction on both sides of the same first touch electrode portion in the first direction.

4. The display panel according to claim 2, characterized in that: One or more pixel openings arranged along a second direction are disposed between two adjacent first touch control portions, and the second direction intersects with the first direction.

5. The display panel according to claim 2, characterized in that: The touch electrode is a mutual capacitance touch electrode, the touch electrode includes a first touch electrode and a second touch electrode, the first touch electrode and the second touch electrode both include the first touch portion and the second touch portion, Preferably, in at least two adjacent first touch electrodes and second touch electrodes, the first touch portions of the first touch electrodes and the first touch portions of the second touch electrodes are alternately distributed along the second direction; Alternatively, a plurality of second touch electrodes arranged side by side along the second direction are arranged between two adjacent first touch electrodes along the first direction.

6. The display panel according to claim 1, characterized in that: The display panel comprises a plurality of touch control areas, each of which is provided with the touch control electrode, the plurality of touch control areas are distributed in an array along a first direction and a second direction, and a distance between two adjacent touch control areas in the first direction and / or the second direction is the same; Optionally, the number of the touch electrodes arranged in each of the touch areas is the same.

7. The display panel according to claim 1, characterized in that: The touch electrodes are located in the display area of ​​the display panel, the touch electrodes are self-capacitive touch electrodes, the functional layer further comprises touch leads connecting the touch electrodes, the touch leads are located on a side of the isolation portion away from the substrate, and a plurality of the touch leads extend to at least two sides of the display area of ​​the display panel; Preferably, 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, and the touch leads connected to the touch electrodes located on both sides of the first reference line are extended in a direction away from the first reference line; Preferably, the first reference line is overlapped with the plurality of touch electrodes arranged along the second direction, and the touch leads connected to the touch electrodes overlapped with the first reference line extend to both sides of the display area in the second direction; Preferably, at least part of the first electrode is located between at least part of two adjacent touch leads.

8. The display panel according to claim 1, characterized in that: Also includes: A pixel definition layer, wherein the pixel definition layer comprises a pixel definition portion and a pixel opening formed by the pixel definition portion, the isolation portion is arranged around the pixel opening, and the light emitting unit is located in the pixel opening; The isolation structure is arranged on a side of the pixel defining portion away from the substrate; Alternatively, the pixel defining portion further encloses 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 facing 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 definition portion further encloses a clearance opening, the insulating dielectric layer is provided with a communication port, the communication port is connected to the clearance opening, the isolation structure is arranged in the clearance opening and the communication port, and the metal layer and at least part of the isolation portion are arranged with the same material; Alternatively, the isolation portion is formed by a surface depression of the pixel defining portion away from the substrate.

9. The display panel according to claim 1, characterized in that: The isolation structure comprises a conductive portion and an insulating portion located on a side of the conductive portion away from the substrate, the touch electrode is located on a side of the insulating portion away from the substrate, and the first electrode and the conductive portion are electrically connected to each other; Preferably, the insulating portion includes an inorganic insulating layer and / or an organic insulating layer; Preferably, the orthographic projection of the conductive portion on the substrate is located within the orthographic projection of the insulating portion on the substrate; Preferably, the conductive portion includes a first sublayer and a second sublayer located on a side of the first sublayer 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, and the orthographic projection of the second sublayer on the substrate is located within the orthographic projection of the insulating portion on the substrate; Preferably, the conductive portion further comprises a third sublayer located on a side of the first sublayer facing the substrate, and an orthographic projection of the first sublayer on the substrate is located within an orthographic projection of the third sublayer on the substrate; Preferably, the second sub-layer and the third sub-layer 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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