Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a substrate, one side of the substrate in the thickness direction of the display panel is provided with a first supporting surface and a second supporting surface, and the first supporting surface and the second supporting surface have a height difference in the thickness direction of the display panel; the isolation structure is arranged on the first supporting surface, and an isolation opening and a containing opening are defined by the isolation structure; at least part of the structure of the light-emitting device is located in the isolation opening; the touch electrode is arranged on the second supporting face and partially located in the containing opening, and the touch electrode and the isolation structure are arranged in an insulated mode. The display panel provided by the embodiment of the invention has relatively good working stability.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, aiming to improve the working stability of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate, having a first supporting surface and a second supporting surface on one side in the thickness direction of the display panel, and the first supporting surface and the second supporting surface have a height difference in the thickness direction of the display panel; an isolation structure, arranged on the first supporting surface, the isolation structure encloses an isolation opening and a receiving opening; a light-emitting device, at least part of the structure of the light-emitting device is located in the isolation opening; a touch electrode, arranged on the second supporting surface and partially located in the receiving opening, the touch electrode and the isolation structure are insulated.

[0006] According to the implementation scheme of the first aspect of the present application, the substrate has a bottom surface on the side opposite to the first supporting surface and the second supporting surface in the thickness direction of the display panel, a first distance is between the first supporting surface and the bottom surface, a second distance is between the second supporting surface and the bottom surface, and the first distance is different from the second distance.

[0007] According to any of the aforementioned implementations of the first aspect of the present application, the second distance is greater than the first distance.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the base includes a pixel definition layer and a substrate located on the side of the pixel definition layer facing away from the isolation structure, the pixel definition layer includes a pixel defining portion, the pixel defining portion encloses a pixel opening connected to the isolation opening, and the first supporting surface and the second supporting surface are surfaces of the pixel defining portion facing away from the substrate.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion includes a first defining portion and a second defining portion, the first supporting surface is the surface of the first defining portion facing away from the substrate, the second supporting surface is the surface of the second defining portion facing away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness is different from the second thickness.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the second thickness is greater than the first thickness.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate has a first supporting area and a second supporting area, the projection of the substrate located in the first supporting area in the thickness direction of the display panel is located within the projection of the first supporting surface in the thickness direction of the display panel, the projection of the substrate located in the second supporting area in the thickness direction of the display panel is located within the projection of the second supporting surface in the thickness direction of the display panel, the substrate located in the first supporting area has a third thickness, the substrate located in the second supporting area has a fourth thickness, and the third thickness is different from the fourth thickness.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the fourth thickness is greater than the third thickness.

[0013] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer away from the pixel definition layer, the planarization layer located in the first supporting area has a first sub-thickness, the planarization layer located in the second supporting area has a second sub-thickness, the first sub-thickness is different from the second sub-thickness, and / or the driving circuit layer located in the first supporting area has a third sub-thickness, the driving circuit layer located in the second supporting area has a fourth sub-thickness, and the third sub-thickness is different from the fourth sub-thickness.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first supporting area has a fifth sub-thickness, and at least one insulating layer located in the second supporting area has a sixth sub-thickness, and the fifth sub-thickness is different from the sixth sub-thickness.

[0016] According to any of the aforementioned implementations of the first aspect of the present application, the sixth sub-thickness is greater than the fifth sub-thickness.

[0017] According to any of the aforementioned implementations of the first aspect of the present application, the conductive structure includes at least one of a transistor, a storage capacitor, and a signal wiring.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the storage capacitor includes a first electrode plate and a second electrode plate located on a side of the first electrode plate close to the planarization layer, the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, the first insulating layer, the second insulating layer and the third insulating layer are stacked in sequence in a direction close to the planarization layer, the first electrode plate is arranged on a side of the first insulating layer away from the second insulating layer, the second electrode plate is arranged between the first insulating layer and the second insulating layer, the third insulating layer located in the first supporting area has a fifth sub-thickness, and the third insulating layer located in the second supporting area has a sixth sub-thickness.

[0019] According to any of the foregoing embodiments of the first aspect of the present application, the transistor includes a source, a drain and a gate, the gate is arranged on a side of the first insulating layer away from the second insulating layer, and the source and the drain are arranged on a side of the third insulating layer away from the second insulating layer.

[0020] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first isolation portion and a second isolation portion located on a side of the first isolation portion away from the substrate, and the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening.

[0021] According to any of the aforementioned embodiments of the first aspect of the present application, the touch electrode includes a first touch portion and a second touch portion, the first touch portion and the first isolation portion are arranged in the same layer and material, and / or the second touch portion and the second isolation portion are arranged in the same layer and material.

[0022] According to any of the aforementioned implementations of the first aspect of the present application, the second touch portion is arranged to protrude from the first touch portion toward the isolation structure.

[0023] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a conductive portion located on a side of the first isolation portion facing the substrate, and the conductive portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening.

[0024] According to any of the aforementioned implementations of the first aspect of the present application, the touch electrode further includes a third touch portion that is provided in the same layer and material as the conductive portion.

[0025] According to any of the aforementioned implementations of the first aspect of the present application, the third touch portion is disposed protruding from the first touch portion toward the isolation structure.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, in a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit and a second electrode stacked in sequence, the material of the isolation structure includes a conductive material, and the second electrode is connected to the isolation structure.

[0027] According to any of the aforementioned embodiments of the first aspect of the present application, there are multiple touch electrodes, the multiple touch electrodes are extended along the first direction and spaced apart in the second direction, and the first direction, the second direction and the thickness direction of the display panel intersect each other.

[0028] According to any of the aforementioned implementations of the first aspect of the present application, each touch electrode is located in a different receiving opening.

[0029] According to any of the aforementioned implementations of the first aspect of the present application, the touch electrode includes a main body portion extending along a first direction and an extension portion protruding from the main body portion in a second direction.

[0030] According to any of the aforementioned implementations of the first aspect of the present application, the display panel further includes a touch wiring, and at least two touch electrodes are electrically connected through the touch wiring.

[0031] According to any of the aforementioned implementations of the first aspect of the present application, the display panel has multiple touch areas, the touch electrodes located in the same touch area are electrically connected through touch wiring, and the touch electrodes located in different touch areas are insulated.

[0032] According to any of the aforementioned implementations of the first aspect of the present application, the touch wiring is extended and formed along the second direction, and / or there are multiple touch wirings, and the multiple touch wirings are arranged at intervals in the first direction.

[0033] An embodiment of the first aspect of the present application also provides a display panel, comprising: a substrate, the substrate having a first supporting surface and a second supporting surface on one side of the display panel in the thickness direction, and a bottom surface on the other side of the substrate in the thickness direction of the display panel, a first distance between the first supporting surface and the bottom surface, a second distance between the second supporting surface and the bottom surface, and the first distance and the second distance are different; an isolation structure, arranged on the first supporting surface, the isolation structure encloses to form an isolation opening and a receiving opening; a light-emitting device, at least part of the structure of the light-emitting device is located in the isolation opening; a touch electrode, arranged on the second supporting surface and partially located in the receiving opening, the touch electrode and the isolation structure are insulated.

[0034] According to an implementation of the first aspect of the present application, the second distance is greater than the first distance.

[0035] According to any of the aforementioned embodiments of the first aspect of the present application, the base includes a pixel definition layer and a substrate located on the side of the pixel definition layer facing away from the isolation structure, the pixel definition layer includes a pixel defining portion, the pixel defining portion encloses a pixel opening connected to the isolation opening, and the first supporting surface and the second supporting surface are surfaces of the pixel defining portion facing away from the substrate.

[0036] According to any of the aforementioned embodiments of the first aspect of the present application, the pixel defining portion includes a first defining portion and a second defining portion, the first supporting surface is the surface of the first defining portion facing away from the substrate, the second supporting surface is the surface of the second defining portion facing away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness is different from the second thickness.

[0037] According to any of the aforementioned embodiments of the first aspect of the present application, the second thickness is greater than the first thickness.

[0038] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate has a first supporting area and a second supporting area, the projection of the substrate located in the first supporting area in the thickness direction of the display panel is located within the projection of the first supporting surface in the thickness direction of the display panel, the projection of the substrate located in the second supporting area in the thickness direction of the display panel is located within the projection of the second supporting surface in the thickness direction of the display panel, the substrate located in the first supporting area has a third thickness, the substrate located in the second supporting area has a fourth thickness, and the third thickness is different from the fourth thickness.

[0039] According to any of the aforementioned embodiments of the first aspect of the present application, the fourth thickness is greater than the third thickness.

[0040] According to any of the aforementioned embodiments of the first aspect of the present application, the substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer away from the pixel definition layer, the planarization layer located in the first supporting area has a first sub-thickness, the planarization layer located in the second supporting area has a second sub-thickness, the first sub-thickness is different from the second sub-thickness, and / or the driving circuit layer located in the first supporting area has a third sub-thickness, the driving circuit layer located in the second supporting area has a fourth sub-thickness, and the third sub-thickness is different from the fourth sub-thickness.

[0041] According to any of the aforementioned embodiments of the first aspect of the present application, the second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness.

[0042] According to any of the aforementioned embodiments of the first aspect of the present application, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first supporting area has a fifth sub-thickness, and at least one insulating layer located in the second supporting area has a sixth sub-thickness, and the fifth sub-thickness is different from the sixth sub-thickness.

[0043] According to any of the aforementioned implementations of the first aspect of the present application, the sixth sub-thickness is greater than the fifth sub-thickness.

[0044] According to any of the aforementioned implementations of the first aspect of the present application, the conductive structure includes at least one of a transistor, a storage capacitor, and a signal wiring.

[0045] According to any of the aforementioned embodiments of the first aspect of the present application, the storage capacitor includes a first electrode plate and a second electrode plate located on a side of the first electrode plate close to the planarization layer, the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, the first insulating layer, the second insulating layer and the third insulating layer are stacked in sequence in a direction close to the planarization layer, the first electrode plate is arranged on a side of the first insulating layer away from the second insulating layer, the second electrode plate is arranged between the first insulating layer and the second insulating layer, the third insulating layer located in the first supporting area has a fifth sub-thickness, and the third insulating layer located in the second supporting area has a sixth sub-thickness.

[0046] According to any of the foregoing embodiments of the first aspect of the present application, the transistor includes a source, a drain and a gate, the gate is arranged on a side of the first insulating layer away from the second insulating layer, and the source and the drain are arranged on a side of the third insulating layer away from the second insulating layer.

[0047] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure includes a first isolation portion and a second isolation portion located on a side of the first isolation portion away from the substrate, and the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening.

[0048] According to any of the aforementioned embodiments of the first aspect of the present application, the touch electrode includes a first touch portion and a second touch portion, the first touch portion and the first isolation portion are arranged in the same layer and material, and / or the second touch portion and the second isolation portion are arranged in the same layer and material.

[0049] According to any of the aforementioned implementations of the first aspect of the present application, the second touch portion is arranged to protrude from the first touch portion toward the isolation structure.

[0050] According to any of the aforementioned embodiments of the first aspect of the present application, the isolation structure further includes a conductive portion located on a side of the first isolation portion facing the substrate, and the conductive portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening.

[0051] According to any of the aforementioned implementations of the first aspect of the present application, the touch electrode further includes a third touch portion that is provided in the same layer and material as the conductive portion.

[0052] According to any of the aforementioned implementations of the first aspect of the present application, the third touch portion is disposed protruding from the first touch portion toward the isolation structure.

[0053] According to any of the aforementioned embodiments of the first aspect of the present application, in a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit and a second electrode stacked in sequence, the material of the isolation structure includes a conductive material, and the second electrode is connected to the isolation structure.

[0054] An embodiment of a second aspect of the present application provides a display device, which includes a display panel according to any of the above embodiments.

[0055] In a display panel provided in an embodiment of the present application, the display panel includes a substrate, an isolation structure, a light-emitting device, and a touch electrode. The substrate has a first supporting surface and a second supporting surface on one side of the display panel in the thickness direction, the isolation structure is arranged on the first supporting surface, the isolation structure encloses to form an isolation opening, at least part of the structure of the light-emitting device is located in the isolation opening, and the isolation structure can be used to participate in dividing the sub-pixels of the display panel. The isolation structure also encloses to form a receiving opening, the touch electrode is arranged on the second supporting surface and is partially located in the receiving opening, so that there is no need to arrange an additional layer structure above the isolation structure to arrange the touch electrode, so that the display panel can have a smaller thickness.

[0056] By setting the first supporting surface and the second supporting surface to have a height difference in the thickness direction of the display panel, a certain misalignment can be present between the isolation structure on the first supporting surface and the touch electrode on the second supporting surface in the thickness direction of the display panel, so that the touch signal in the touch electrode and the signal of the light-emitting device in the isolation opening are not easily interfered with each other, thereby better improving the working stability of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 is a schematic diagram of a partially enlarged structure of an isolation structure and a touch electrode in an embodiment of the present application;

[0059] Figure 2 is a schematic diagram of the structure of a touch electrode and a touch wiring according to an embodiment of the present application;

[0060] Figure 3 is a partial cross-sectional schematic diagram of a display panel according to an embodiment of the present application;

[0061] Figure 4 is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application;

[0062] Figure 5 is a partial cross-sectional schematic diagram of a display panel according to yet another embodiment of the present application;

[0063] Figure 6 is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application;

[0064] Figure 7is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application;

[0065] Figure 8 is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application;

[0066] Fig. 9 It is a schematic diagram of a partial structure of a touch electrode according to an embodiment of the present application.

[0067] Description of reference numerals:

[0068] 10, base; 10a, first supporting surface; 10b, second supporting surface; 10c, bottom surface;

[0069] 100, substrate; 100a, first supporting area; 100c, second supporting area; 110, substrate; 120, driving circuit layer; 121, conductive structure; 121a, transistor; 121aa, gate; 121ab, source and drain; 121b, storage capacitor; 121ba, first plate; 121bb, second plate; 122, insulating layer; 122a, first insulating layer; 122b, second insulating layer; 122c, third insulating layer; 130, planarization layer;

[0070] 200, pixel definition layer; 210, pixel defining portion; 211, first defining portion; 212, second defining portion; 210a, pixel opening;

[0071] 20, isolation structure; 20a, isolation opening; 20b, receiving opening; 21, first isolation part; 22, second isolation part; 23, conductive part;

[0072] 30. Light-emitting device; 31. First electrode; 32. Light-emitting unit; 33. Second electrode;

[0073] 40, encapsulation layer; 41, first encapsulation layer; 42, second encapsulation layer; 43, third encapsulation layer;

[0074] TP, touch electrode; TPa, main body; TPb, extension; TP1, first touch portion; TP2, second touch portion; TP3, third touch portion;

[0075] TPL, touch routing;

[0076] TPA, touch area;

[0077] D1, first distance; D2, second distance;

[0078] H1, first thickness; H2, second thickness; H3, third thickness; H31, first sub-thickness; H32, third sub-thickness; H33, fifth sub-thickness; H4, fourth thickness; H41, second sub-thickness; H42, fourth sub-thickness; H43, sixth sub-thickness;

[0079] X, first direction;

[0080] Y, second direction;

[0081] Z, thickness direction. DETAILED DESCRIPTION

[0082] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0083] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0084] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0085] Embodiments of the present application provide a display panel and a display device. Embodiments of the display panel and the display device will be described below in conjunction with the accompanying drawings.

[0086] Figure 1is a schematic diagram of a partially enlarged structure of an isolation structure 20 and a touch electrode TP in an embodiment of the present application, Figure 2 is a schematic diagram of the structure of a touch electrode TP and a touch line TPL according to an embodiment of the present application. Figure 3 It is a partial cross-sectional schematic diagram of a display panel of an embodiment of the present application. The X direction in the figure is the first direction X, the Y direction in the figure is the second direction Y, and the Z direction in the figure is the thickness direction Z of the display panel, wherein the first direction X, the second direction Y and the thickness direction Z of the display panel intersect each other, and optionally, the first direction X, the second direction Y and the thickness direction Z of the display panel can be perpendicular to each other. In the drawings of the present application, in order to facilitate the display of the isolation structure 20 and the touch electrode TP in the drawings, the number of isolation openings 20a, accommodating openings 20b and touch electrodes TP is reduced in the drawings. Therefore, the drawings only serve as a structural schematic, and they cannot represent the actual accurate structure of the display panel.

[0087] like Figure 1 and Figure 3 As shown, an embodiment of the first aspect of the present application provides a display panel, including: a substrate 10, having a first supporting surface 10a and a second supporting surface 10b on one side in the thickness direction Z of the display panel, and the first supporting surface 10a and the second supporting surface 10b have a height difference in the thickness direction Z of the display panel; an isolation structure 20, arranged on the first supporting surface 10a, the isolation structure 20 encloses an isolation opening 20a and a receiving opening 20b; a light-emitting device 30, at least part of the structure of the light-emitting device 30 is located in the isolation opening 20a; a touch electrode TP, arranged on the second supporting surface 10b and partially located in the receiving opening 20b, and the touch electrode TP is insulated from the isolation structure 20.

[0088] In a display panel provided in an embodiment of the present application, the display panel includes a substrate 10, an isolation structure 20, a light emitting device 30, and a touch electrode TP. The substrate 10 has a first supporting surface 10a and a second supporting surface 10b on one side in the thickness direction Z of the display panel, the isolation structure 20 is disposed on the first supporting surface 10a, the isolation structure 20 encloses an isolation opening 20a, at least part of the structure of the light emitting device 30 is located in the isolation opening 20a, and the isolation structure 20 can be used to participate in dividing the sub-pixels of the display panel.

[0089] Related solutions of the isolation structure 20 (also called partition structure, etc.) are disclosed in patents (applications) CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, CN1179797 55A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, CN117500332A, etc., the contents of which are incorporated into this application by reference for reference.

[0090] Optionally, the first supporting surface 10a may be a surface on the substrate 10 that is in direct contact with the isolation structure 20. The projection of the first supporting surface 10a in the thickness direction Z of the display panel may at least partially overlap with the projection of the isolation structure 20 in the thickness direction Z of the display panel, for example, the projection of the first supporting surface 10a in the thickness direction Z of the display panel may be located within the projection of the isolation structure 20 in the thickness direction Z of the display panel.

[0091] The isolation structure 20 also encloses a receiving opening 20b. The touch electrode TP is disposed on the second support surface 10b and is partially located in the receiving opening 20b, so that there is no need to set an additional layer structure above the isolation structure 20 to arrange the touch electrode TP, so that the display panel can have a smaller thickness.

[0092] Optionally, the second supporting surface 10b may be a surface on the substrate 10 that is in direct contact with the touch electrode TP. The projection of the second supporting surface 10b in the thickness direction Z of the display panel may at least partially overlap with the projection of the touch electrode TP in the thickness direction Z of the display panel. For example, the projection of the second supporting surface 10b in the thickness direction Z of the display panel may be located within the projection of the touch electrode TP in the thickness direction Z of the display panel.

[0093] Optionally, the isolation structure 20 may be in a grid shape, and the hollowed-out areas in the grid-shaped isolation structure 20 may form isolation openings 20a and accommodation openings 20b, so as to facilitate the isolation structure 20 to divide the sub-pixels of the display panel and to facilitate the accommodation of the touch electrodes TP.

[0094] Optionally, the touch electrode TP is insulated from the isolation structure 20 . For example, the touch electrode TP may be spaced apart from the isolation structure 20 to achieve insulation, so that a short circuit is unlikely to occur between the touch electrode TP and the isolation structure 20 .

[0095] By setting the first supporting surface 10a and the second supporting surface 10b to have a height difference in the thickness direction Z of the display panel, a certain misalignment can be present between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not likely to interfere with each other, thereby better improving the working stability of the display panel.

[0096] Optionally, the touch electrode TP is partially located in the receiving opening 20b, which may mean that a part of the structure of the touch electrode TP may be located in the receiving opening 20b, and another part of the structure of the touch electrode TP may be located outside the receiving opening 20b. Exemplarily, under the influence of the height difference between the second supporting surface 10b and the first supporting surface 10a, a part of the structure of the touch electrode TP may be located in the receiving opening 20b, and another part of the structure of the touch electrode TP may be located outside the receiving opening 20b, so that there may be a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easy to interfere with each other, thereby being able to better improve the working stability of the display panel.

[0097] like Figure 1 As shown, in some optional embodiments, a plurality of touch electrodes TP may be extended along the first direction X and arranged at intervals in the second direction Y.

[0098] Optionally, each touch electrode TP is located in a different receiving opening 20b.

[0099] Optionally, corresponding to the arrangement of the touch electrodes TP, the plurality of receiving openings 20b may be formed extending along the first direction X and spaced apart in the second direction Y. Similarly, the plurality of second supporting surfaces 10b may also be formed extending along the first direction X and spaced apart in the second direction Y.

[0100] In these optional embodiments, by reasonably arranging the touch electrodes TP, the display panel can have relatively uniform and sufficient touch electrodes TP to realize the touch function, and the arrangement of the touch electrodes TP is not easy to affect the electrical connection between the second electrodes 33 of adjacent light-emitting devices 30 through the isolation structure 20, thereby greatly improving the working reliability of the display panel.

[0101] In some optional embodiments, the touch electrode TP may include a main body portion TPa extending along the first direction X and an extension portion TPb protruding from the main body portion TPa in the second direction Y.

[0102] Optionally, a single touch electrode TP may include a main portion TPa and at least two extending portions TPb. The extending portions TPb in the single touch electrode TP may be disposed on two sides of the main portion TPa in the second direction Y.

[0103] In these optional embodiments, by providing the extension portion TPb protruding from the main portion TPa, the layout area of ​​the touch electrode TP can be better increased, thereby better improving the touch capability of the display panel.

[0104] like Figure 2 As shown, in some optional embodiments, the display panel further includes a touch line TPL, and at least two touch electrodes TP can be electrically connected via the touch line TPL to facilitate control and sensing of the touch electrode TP, thereby facilitating the touch function of the display panel.

[0105] Optionally, the display panel may have multiple touch areas TPA, the touch electrodes TP located in the same touch area TPA may be electrically connected through touch lines TPL, and the touch electrodes TP located in different touch areas TPA may be insulated, so that in the display panel, the touch area TPA can be used as a unit to participate in the touch operation of the display panel, so as to facilitate the related control and sensing of the touch electrodes TP in the display panel.

[0106] Optionally, the touch electrodes TP located in the same touch area TPA may be electrically connected via multiple or a single touch line TPL, which is not specifically limited in the present application.

[0107] Optionally, the touch line TPL may be extended along the second direction Y so that a single touch line TPL is connected to at least two touch electrodes TP arranged in the second direction Y.

[0108] Optionally, there may be a plurality of touch lines TPL, and the plurality of touch lines TPL may be spaced apart in the first direction X, so as to reduce the resistance of the display panel when transmitting the touch signal, which is beneficial to improving the working stability of the display panel.

[0109] Optionally, the touch line TPL can be used to connect to a touch chip (Touch Key Integrated Circuit, TouchKey IC), so that the touch electrode TP can be electrically connected to the touch chip through the touch line TPL. The touch chip can detect the capacitance change on the touch electrode TP in the touch area TPA located at the corresponding position in the display panel through the touch line TPL for identification and positioning, thereby realizing the touch function of the display panel.

[0110] In some optional embodiments of the present application, the display panel may be a display panel that realizes touch positioning based on a self-capacitive touch architecture, that is, the touch electrode TP can be specifically used as an electrode for excitation and detection. When a finger touches the display panel as a conductor, the capacitance on the touch electrode TP in the touch area TPA at the corresponding position in the display panel increases, so that identification and positioning can be performed through capacitance changes, thereby realizing touch display of the display panel.

[0111] For example, when a finger touches the display panel as a conductor, the touch electrode TP in the touch area TPA at the corresponding position will be affected by the finger and derive a part of the charge, thereby causing a change in capacitance. Among them, Cp is the parasitic capacitance between the touch electrode TP and the ground, and Cf is the inductive capacitance between the inductive electrode and the ground generated by the human body when the finger touches. When the finger touches the display panel as a conductor, it is equivalent to Cp and Cf in parallel, so that the parasitic capacitance = Cp + Cf, that is, the parasitic capacitance increases, so that the capacitance change can be used for identification and positioning, thereby realizing the touch display of the display panel.

[0112] When the touch electrode TP can be specifically used as an electrode for excitation and detection, that is, when the display panel is a display panel that realizes touch positioning based on a self-capacitive touch architecture, there is no need to set corresponding driving electrodes for excitation and receiving electrodes for detection on the display panel. Only the touch electrode TP is required to realize the touch function of the display panel, so that there is no need to set too many layer structures to arrange the electrodes for the touch function, so that the display panel can have a smaller thickness.

[0113] In some optional embodiments, in a direction away from the substrate 10 , the light emitting device 30 includes a first electrode 31 , a light emitting unit 32 , and a second electrode 33 which are stacked in sequence.

[0114] The display panel provided in some embodiments of the present application may be an organic light emitting diode (OLED) display panel.

[0115] Optionally, the light-emitting unit 32 may include a hole injection layer (HIL), a hole transport layer (HTL), a light-emitting structure, an electron injection layer (EIL) and an electron transport layer (ETL).

[0116] Optionally, the first electrode 31 and the second electrode 33 can be used as pixel electrodes of the display panel, one of the first electrode 31 and the second electrode 33 can be used as an anode, and the other can be used as a cathode to drive the light-emitting unit 32 to emit light. In the embodiment of the present application, the first electrode 31 is used as the anode of the display panel, and the second electrode 33 is used as the cathode of the display panel.

[0117] In some optional embodiments, the material of the isolation structure 20 includes a conductive material, and the second electrode 33 can be connected to the isolation structure 20, so that the second electrodes 33 of adjacent light-emitting devices 30 can be electrically connected through the isolation structure 20, that is, the second electrodes 33 of adjacent light-emitting devices 30 can be interconnected through the isolation structure 20 to form a surface electrode, so as to facilitate the control of the second electrode 33 in the display panel.

[0118] In some embodiments of the present application, by setting the first supporting surface 10a and the second supporting surface 10b to have a height difference in the thickness direction Z of the display panel, a certain misalignment may exist between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the second electrode 33 transmitted in the isolation structure 20 are not easy to interfere with each other, thereby better improving the working stability of the display panel.

[0119] In some optional embodiments, the isolation structure 20 may include a first isolation portion 21 and a second isolation portion 22 located on a side of the first isolation portion 21 away from the substrate 10, and the second isolation portion 22 protrudes from the first isolation portion 21 toward the isolation opening 20a and / or the accommodating opening 20b.

[0120] By arranging the second isolating portion 22 to protrude from the first isolating portion 21 toward the isolating opening 20a and / or the accommodating opening 20b, when vapor-depositing the light-emitting unit 32 and the second electrode 33 of the display panel, the second isolating portion 22 can block at least a portion of the material used to prepare the light-emitting unit 32 and the second electrode 33, so as to separate the light-emitting unit 32 and the second electrode 33 between adjacent sub-pixels, and can facilitate the formation of a plurality of spaced light-emitting units 32 and the second electrode 33, so that when vapor-depositing the light-emitting unit 32 and the second electrode 33 of the display panel, there is no need to set a mask plate with high precision, for example, when vapor-depositing the light-emitting unit 32 and the second electrode 33, there is no need to set a high-precision metal mask plate (Fine Metal Mask, FMM), thereby effectively reducing the production cost of the display panel.

[0121] Optionally, the material of the isolation structure 20 may include a conductive material, and the second electrode 33 may be connected to the first isolation portion 21 , so that the second electrodes 33 of adjacent light-emitting devices 30 may be electrically connected through the first isolation portion 21 .

[0122] Optionally, the isolation structure 20 may further include a conductive portion 23 located on the side of the first isolation portion 21 facing the substrate 10 , and the conductive portion 23 is disposed protruding from the first isolation portion 21 toward the isolation opening 20a and / or the receiving opening 20b. Optionally, the second electrode 33 may be connected to the conductive portion 23 .

[0123] By arranging the conductive part 23 to protrude from the first isolation part 21 toward the isolation opening 20a and / or the accommodating opening 20b, the overlap between the second electrode 33 and the conductive part 23 can be facilitated, and the overlap area between the second electrode 33 and the conductive part 23 can be better increased, thereby better reducing the resistance of the display panel.

[0124] In some optional embodiments of the present application, at least a portion of the film layer structure in the touch electrode TP can be set in the same layer and material as the corresponding film layer structure in the isolation structure 20, so that at least a portion of the film layer structure in the touch electrode TP can be prepared using the same or similar preparation equipment as the corresponding film layer structure in the isolation structure 20, and at least a portion of the film layer structure in the touch electrode TP and the corresponding film layer structure in the isolation structure 20 can be prepared in the same preparation step, thereby greatly improving the preparation efficiency of the display panel.

[0125] In some optional embodiments, the touch electrode TP may include a first touch portion TP1 and a second touch portion TP2 , the first touch portion TP1 and the first isolation portion 21 are provided in the same layer and material, and / or the second touch portion TP2 and the second isolation portion 22 are provided in the same layer and material.

[0126] Optionally, the second touch portion TP2 is disposed to protrude from the first touch portion TP1 toward the isolation structure 20 .

[0127] In these optional embodiments, by setting the first touch portion TP1 and the first isolation portion 21 to the same layer and the same material, and the second touch portion TP2 and the second isolation portion 22 to the same layer and the same material, and setting the shape of the touch electrode TP to be similar to the shape of the isolation structure 20, the first touch portion TP1 in the touch electrode TP and the first isolation portion 21 in the isolation structure 20 can be prepared using the same or similar preparation equipment in the same preparation step, and the second touch portion TP2 in the touch electrode TP and the second isolation portion 22 in the isolation structure 20 can be prepared using the same or similar preparation equipment in the same preparation step, thereby greatly improving the preparation efficiency of the display panel.

[0128] In some optional embodiments, the touch electrode TP may further include a third touch portion TP3 disposed in the same layer and made of the same material as the conductive portion 23 .

[0129] Optionally, the third touch portion TP3 may be disposed to protrude from the first touch portion TP1 toward the isolation structure 20 .

[0130] In these optional embodiments, by setting the third touch portion TP3 and the conductive portion 23 to the same layer and the same material, and setting the shape of the touch electrode TP to be similar to the shape of the isolation structure 20, the third touch portion TP3 in the touch electrode TP and the conductive portion 23 in the isolation structure 20 can be prepared in the same preparation step using the same or similar preparation equipment, thereby greatly improving the preparation efficiency of the display panel.

[0131] like Figure 3 As shown, in some optional embodiments, the substrate 10 has a bottom surface 10c on the side opposite to the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, a first distance D1 is defined between the first supporting surface 10a and the bottom surface 10c, a second distance D2 is defined between the second supporting surface 10b and the bottom surface 10c, and the first distance D1 is different from the second distance D2.

[0132] Optionally, the first distance D1 may be the maximum distance between the first supporting surface 10a and the bottom surface 10c, or the first distance D1 may be the average distance between the first supporting surface 10a and the bottom surface 10c.

[0133] In these optional embodiments, by setting the first distance D1 and the second distance D2 to be different, the thickness of the substrate 10 corresponding to the first supporting surface 10a can correspond to the thickness of the substrate 10 corresponding to the second supporting surface 10b, thereby facilitating the realization of a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, and further facilitating the realization of a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel.

[0134] In some embodiments of the present application, there are various specific implementations of the height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel.

[0135] like Figure 3 As shown, in some optional embodiments, the height of the second support surface 10b may be higher than the height of the first support surface 10a. For example, the second distance D2 may be greater than the first distance D1.

[0136] In this optional embodiment, by setting the height of the second supporting surface 10b higher than the height of the first supporting surface 10a, for example, by setting the second distance D2 greater than the first distance D1, the second supporting surface 10b can support the touch electrode TP to a higher height, so that a part of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, so as to facilitate the realization of a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel. In addition, the touch electrode TP, which has a part of its structure extending out of the isolation opening 20a in a direction away from the substrate 10, can be relatively far away from the circuit structure in the substrate 10, so that the touch signal in the touch electrode TP is not easy to interfere with the signal of the circuit structure in the substrate 10, and the working stability of the display panel can be improved.

[0137] Figure 4 It is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application.

[0138] like Figure 4 As shown, in some other optional embodiments, the height of the first support surface 10a may be higher than the height of the second support surface 10b. For example, the first distance D1 may be greater than the second distance D2.

[0139] In this optional embodiment, by setting the height of the first supporting surface 10a to be higher than the height of the second supporting surface 10b, for example, by setting the first distance D1 to be greater than the second distance D2, the height at which the touch electrode TP is supported by the second supporting surface 10b is lower, so that a partial structure of the touch electrode TP can extend out of the isolation opening 20a in a direction close to the substrate 10, so as to achieve a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel.

[0140] For ease of description, the following embodiments are described by taking “the height of the second supporting surface 10b may be higher than the height of the first supporting surface 10a. For example, the second distance D2 may be greater than the first distance D1.” as an example.

[0141] In some optional embodiments of the present application, the thickness of at least one film layer structure in the substrate 10 can be adjusted to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel.

[0142] Figure 5 is a partial cross-sectional schematic diagram of a display panel according to yet another embodiment of the present application, Figure 6It is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application.

[0143] like Figure 5 and Figure 6 As shown, in some optional embodiments, the base 10 may include a pixel definition layer 200 and a substrate 100 located on the side of the pixel definition layer 200 away from the isolation structure 20, the pixel definition layer 200 includes a pixel defining portion 210, the pixel defining portion 210 encloses a pixel opening 210a connected to the isolation opening 20a, and the first supporting surface 10a and the second supporting surface 10b are surfaces of the pixel defining portion 210 away from the substrate 100.

[0144] Optionally, part of the structure of the light emitting device 30 may be located in the pixel opening 210a. For example, part of the structure of the light emitting device 30 may be located in the pixel opening 210a, and another part of the structure of the light emitting device 30 may extend out of the pixel opening 210a and be located in the isolation opening 20a.

[0145] In these optional embodiments, the pixel definition layer 200 can also be used to participate in dividing the sub-pixels of the display panel. The thickness of at least one of the substrate 100 and the pixel definition layer 200 can be adjusted to achieve a height difference between the first support surface 10a and the second support surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first support surface 10a and the touch electrode TP on the second support surface 10b in the thickness direction Z of the display panel.

[0146] like Figure 5 As shown, in some optional embodiments, the pixel defining portion 210 may include a first defining portion 211 and a second defining portion 212, the first supporting surface 10a is the surface of the first defining portion 211 facing away from the substrate 100, the second supporting surface 10b is the surface of the second defining portion 212 facing away from the substrate 100, the first defining portion 211 has a first thickness H1, the second defining portion 212 has a second thickness H2, and the first thickness H1 is different from the second thickness H2.

[0147] Optionally, the first thickness H1 may be the maximum thickness of the first defining portion 211 , and the second thickness H2 may be the maximum thickness of the second defining portion 212 , or the first thickness H1 may be the average thickness of the first defining portion 211 , and the second thickness H2 may be the average thickness of the second defining portion 212 .

[0148] In these optional embodiments, the thickness of the pixel defining portion 210 can be set differently to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, which can better improve the working stability of the display panel.

[0149] Optionally, the second thickness H2 may be greater than the first thickness H1, so as to achieve that the height of the second supporting surface 10b in the aforementioned embodiment is higher than the height of the first supporting surface 10a. For example, it is possible to easily achieve that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second supporting surface 10b can support the touch electrode TP to a higher height, so that a portion of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, and the touch electrode TP, a portion of which extends out of the isolation opening 20a in a direction away from the substrate 10, can be relatively far away from the circuit structure in the substrate 100, so that the touch signal in the touch electrode TP is not easily interfered with the signal of the circuit structure in the substrate 100, which can better improve the working stability of the display panel.

[0150] like Figure 6 As shown, in some optional embodiments, the substrate 100 may have a first supporting area 100a and a second supporting area 100c, the projection of the substrate 100 located in the first supporting area 100a in the thickness direction Z of the display panel is located within the projection of the first supporting surface 10a in the thickness direction Z of the display panel, the projection of the substrate 100 located in the second supporting area 100c in the thickness direction Z of the display panel is located within the projection of the second supporting surface 10b in the thickness direction Z of the display panel, the substrate 100 located in the first supporting area 100a has a third thickness H3, and the substrate 100 located in the second supporting area 100c has a fourth thickness H4, and the third thickness H3 is different from the fourth thickness H4.

[0151] Optionally, the third thickness H3 may be the maximum thickness of the substrate 100 located in the first supporting area 100a, and the fourth thickness H4 may be the maximum thickness of the substrate 100 located in the second supporting area 100c, or the third thickness H3 may be the average thickness of the substrate 100 located in the first supporting area 100a, and the fourth thickness H4 may be the average thickness of the substrate 100 located in the second supporting area 100c.

[0152] In these optional embodiments, the thickness of the substrate 100 can be set differently to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, which can better improve the working stability of the display panel.

[0153] Optionally, the fourth thickness H4 may be greater than the third thickness H3, so as to achieve that the height of the second supporting surface 10b in the aforementioned embodiment is higher than the height of the first supporting surface 10a. For example, it can be easy to achieve that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second supporting surface 10b can support the touch electrode TP to a higher height, so that part of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, and the touch electrode TP with part of its structure extending out of the isolation opening 20a in a direction away from the substrate 10 can be relatively far away from the circuit structure in the substrate 100, so that the touch signal in the touch electrode TP is not easily interfered with the signal of the circuit structure in the substrate 100, which can better improve the working stability of the display panel.

[0154] Figure 7 is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application, Figure 8 It is a partial cross-sectional schematic diagram of a display panel according to another embodiment of the present application.

[0155] like Figure 7 and Figure 8 As shown, in some embodiments of the present application, there are various ways to configure the substrate 100. The substrate 100 may include, for example, a planarization layer 130 and a driving circuit layer 120 located on a side of the planarization layer 130 away from the pixel definition layer 200.

[0156] Optionally, the substrate 100 may further include a base 110 disposed on a side of the driving circuit layer 120 away from the planarization layer 130 . The bottom surface 10 c of the base 10 may be a surface of the base 110 on a side away from the driving circuit layer 120 .

[0157] Optionally, the driving circuit layer 120 may include a conductive structure 121 and an insulating layer 122 . The conductive structure 121 may be used to participate in signal transmission in the substrate 100 , and the insulating layer 122 may be used to achieve insulation between different conductive structures 121 .

[0158] Optionally, the conductive structure 121 may include at least one of a transistor 121a, a storage capacitor 121b, and a signal line. Exemplarily, the storage capacitor 121b may include a first electrode 121ba and a second electrode 121bb located on a side of the first electrode 121ba close to the planarization layer 130. Exemplarily, the transistor 121a may include a source and drain 121ab and a gate 121aa.

[0159] Optionally, the insulating layer 122 includes a first insulating layer 122 a , a second insulating layer 122 b and a third insulating layer 122 c , and the first insulating layer 122 a , the second insulating layer 122 b and the third insulating layer 122 c are stacked in sequence in a direction close to the planarization layer 130 .

[0160] As an example, the first electrode 121ba may be disposed on a side of the first insulating layer 122a away from the second insulating layer 122b, and the second electrode 121bb may be disposed between the first insulating layer 122a and the second insulating layer 122b. As an example, the gate 121aa may be disposed on a side of the first insulating layer 122a away from the second insulating layer 122b, and the source and drain 121ab may be disposed on a side of the third insulating layer 122c away from the second insulating layer 122b.

[0161] In some optional embodiments of the present application, the thickness adjustment of the substrate 100 in the aforementioned embodiment can be achieved by adjusting the thickness of at least one film layer structure in the substrate 100, so that the first supporting surface 10a and the second supporting surface 10b have a height difference in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel.

[0162] like Figure 7 As shown, in some optional embodiments, the planarization layer 130 located in the first supporting region 100a has a first sub-thickness H31, and the planarization layer 130 located in the second supporting region 100c has a second sub-thickness H41, and the first sub-thickness H31 is different from the second sub-thickness H41.

[0163] Optionally, the first sub-thickness H31 may be the maximum thickness of the planarization layer 130 located in the first supporting area 100a, and the second sub-thickness H41 may be the maximum thickness of the planarization layer 130 located in the second supporting area 100c, or the first sub-thickness H31 may be the average thickness of the planarization layer 130 located in the first supporting area 100a, and the second sub-thickness H41 may be the average thickness of the planarization layer 130 located in the second supporting area 100c.

[0164] In these optional embodiments, the thickness of the planarization layer 130 can be set differently to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, which can better improve the working stability of the display panel.

[0165] Optionally, the second sub-thickness H41 may be greater than the first sub-thickness H31, so as to achieve that the height of the second supporting surface 10b in the aforementioned embodiment is higher than the height of the first supporting surface 10a. For example, it can be convenient to achieve that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second supporting surface 10b can support the touch electrode TP to a higher height, so that part of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, and the touch electrode TP with part of its structure extending out of the isolation opening 20a in a direction away from the substrate 10 can be relatively far away from the circuit structure in the substrate 100, so that the touch signal in the touch electrode TP is not easily interfered with the signal of the circuit structure in the substrate 100, which can better improve the working stability of the display panel.

[0166] like Figure 8 As shown, in some optional embodiments, the driving circuit layer 120 located in the first supporting area 100a has a third sub-thickness H32, and the driving circuit layer 120 located in the second supporting area 100c has a fourth sub-thickness H42, and the third sub-thickness H32 is different from the fourth sub-thickness H42.

[0167] Optionally, the third sub-thickness H32 may be the maximum thickness of the driving circuit layer 120 located in the first supporting area 100a, and the fourth sub-thickness H42 may be the maximum thickness of the driving circuit layer 120 located in the second supporting area 100c, or the third sub-thickness H32 may be the average thickness of the driving circuit layer 120 located in the first supporting area 100a, and the fourth sub-thickness H42 may be the average thickness of the driving circuit layer 120 located in the second supporting area 100c.

[0168] In these optional embodiments, the thickness of the driving circuit layer 120 can be set differently to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, which can better improve the working stability of the display panel.

[0169] Optionally, the fourth sub-thickness H42 may be greater than the third sub-thickness H32, so that the height of the second supporting surface 10b in the aforementioned embodiment is higher than the height of the first supporting surface 10a. For example, it is possible to easily achieve that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second supporting surface 10b can support the touch electrode TP to a higher height, so that part of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, and the touch electrode TP with part of its structure extending out of the isolation opening 20a in a direction away from the substrate 10 can be relatively far away from the circuit structure in the substrate 100, so that the touch signal in the touch electrode TP is not easily interfered with the signal of the circuit structure in the substrate 100, which can better improve the working stability of the display panel.

[0170] In some embodiments of the present application, the thickness of the driving circuit layer 120 can be adjusted by adjusting the thickness of at least one film layer structure in the driving circuit layer 120, so that the first supporting surface 10a and the second supporting surface 10b have a height difference in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel.

[0171] In some optional embodiments, at least one insulating layer 122 in the first supporting region 100a has a fifth sub-thickness H33, and at least one insulating layer 122 in the second supporting region 100c has a sixth sub-thickness H43, and the fifth sub-thickness H33 is different from the sixth sub-thickness H43.

[0172] Optionally, the fifth sub-thickness H33 may be the maximum thickness of any single-layer insulating layer 122 located in the first support area 100a (for example, a single-layer first insulating layer 122a, a single-layer second insulating layer 122b or a single-layer third insulating layer 122c), and the sixth sub-thickness H43 may be the maximum thickness of the single-layer insulating layer 122 located in the second support area 100c, or, the fifth sub-thickness H33 may be the average thickness of any single-layer insulating layer 122 located in the first support area 100a, and the sixth sub-thickness H43 may be the average thickness of the single-layer insulating layer 122 located in the second support area 100c.

[0173] In these optional embodiments, the thickness of the insulating layer 122 can be set differently to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, thereby achieving a certain misalignment between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, which can better improve the working stability of the display panel.

[0174] Optionally, the sixth sub-thickness H43 may be greater than the fifth sub-thickness H33, so as to achieve that the height of the second supporting surface 10b in the aforementioned embodiment is higher than the height of the first supporting surface 10a. For example, it can be convenient to achieve that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second supporting surface 10b can support the touch electrode TP to a higher height, so that part of the structure of the touch electrode TP can extend out of the isolation opening 20a in a direction away from the substrate 10, and the touch electrode TP with part of its structure extending out of the isolation opening 20a in a direction away from the substrate 10 can be relatively far away from the circuit structure in the substrate 100, so that the touch signal in the touch electrode TP is not easily interfered with the signal of the circuit structure in the substrate 100, which can better improve the working stability of the display panel.

[0175] In some optional embodiments, the third insulating layer 122c located in the first supporting region 100a has a fifth sub-thickness H33, and the third insulating layer 122c located in the second supporting region 100c has a sixth sub-thickness H43.

[0176] In this optional embodiment, since the third insulating layer 122c is located on the side of the storage capacitor 121b away from the substrate 110, when the thickness of the third insulating layer 122c is adjusted to achieve a height difference between the first supporting surface 10a and the second supporting surface 10b in the thickness direction Z of the display panel, it is not easy to affect the capacitance of the storage capacitor 121b located below the third insulating layer 122c, that is, when the thickness of the third insulating layer 122c in the first supporting area 100a is different from that in the second supporting area 100c, the distance between the first electrode 121ba and the second electrode 121bb located below the third insulating layer 122c is not easily affected, so that the storage capacitor 121b can have better structural stability, which can better improve the working reliability of the display panel.

[0177] In some optional embodiments of the present application, there may be multiple touch electrodes TP to facilitate realizing the touch function of the display panel, wherein there are multiple arrangements of the touch electrodes TP.

[0178] Fig. 9 This is a partial cross-sectional view of a display panel provided in another embodiment of the present application.

[0179] As shown in the figure, in some optional embodiments, the display panel further includes an encapsulation layer 40 disposed on the side of the isolation structure 20, the touch electrode TP and the light-emitting device 30 away from the substrate 100, and the encapsulation layer 40 can be used to implement encapsulation of the display panel.

[0180] Optionally, the encapsulation layer 40 may include a first encapsulation layer 41 disposed on the side of the isolation structure 20, the touch electrode TP and the light-emitting device 30 away from the substrate 100. Optionally, the material of the first encapsulation layer 41 may include an inorganic material, so that the first encapsulation layer 41 can better reduce the influence of water vapor on the operation of the light-emitting device 30. Exemplarily, the first encapsulation layer 41 can be prepared by a chemical vapor deposition process (Chemical Vapor Deposition, CVD).

[0181] Optionally, the encapsulation layer 40 further includes a second encapsulation layer 42 located on the side of the first encapsulation layer 41 away from the substrate 100, so as to better improve the encapsulation effect of the display panel. Optionally, the material of the second encapsulation layer 42 may include an organic material, so that during the preparation process of the display panel, the second encapsulation layer 42 may have good fluidity, so that the surface of the second encapsulation layer 42 on the side away from the substrate 100 may have good flatness, which can facilitate the formation of subsequent film layers. Exemplarily, the second encapsulation layer 42 may be prepared by inkjet printing technology (Inkjet Printing, IJP).

[0182] Optionally, the encapsulation layer 40 may further include a third encapsulation layer 43 located on the side of the second encapsulation layer 42 away from the substrate 100, so as to better improve the encapsulation effect of the display panel. Optionally, the material of the third encapsulation layer 43 may include an inorganic material, so that the third encapsulation layer 530 can better reduce the influence of water vapor on the operation of the light-emitting device 30. Exemplarily, the third encapsulation layer 43 can be prepared by a chemical vapor deposition process.

[0183] See also Figures 1 to 9 The embodiment of the first aspect of the present application further provides a display panel, including: a substrate 10, wherein the substrate 10 has a first supporting surface 10a and a second supporting surface 10b on one side of the display panel in the thickness direction Z, and the substrate 10 has a bottom surface 10c on the other side of the display panel in the thickness direction Z, a first distance D1 is provided between the first supporting surface 10a and the bottom surface 10c, a second distance D2 is provided between the second supporting surface 10b and the bottom surface 10c, and the first distance D1 is different from the second distance D2; an isolation structure 20, which is arranged on the first supporting surface 10a, and the isolation structure 20 encloses an isolation opening 20a and a receiving opening 20b; a light-emitting device 30, wherein at least part of the structure of the light-emitting device 30 is located in the isolation opening 20a; a touch electrode TP, which is arranged on the second supporting surface 10b and partly located in the receiving opening 20b, and the touch electrode TP is insulated from the isolation structure 20.

[0184] In a display panel provided in an embodiment of the present application, the display panel includes a substrate 10, an isolation structure 20, a light-emitting device 30, and a touch electrode TP. The substrate 10 has a first support surface 10a and a second support surface 10b on one side of the thickness direction Z of the display panel, the isolation structure 20 is arranged on the first support surface 10a, the isolation structure 20 encloses to form an isolation opening 20a, at least part of the structure of the light-emitting device 30 is located in the isolation opening 20a, and the isolation structure 20 can be used to participate in dividing the sub-pixels of the display panel. The isolation structure 20 also encloses to form a receiving opening 20b, and the touch electrode TP is arranged on the second support surface 10b and partially located in the receiving opening 20b, so that there is no need to arrange an additional layer structure above the isolation structure 20 to arrange the touch electrode TP, so that the display panel can have a smaller thickness.

[0185] The substrate 10 has a bottom surface 10c on the other side in the thickness direction Z of the display panel, a first distance D1 is defined between the first supporting surface 10a and the bottom surface 10c, and a second distance D2 is defined between the second supporting surface 10b and the bottom surface 10c. By setting the first distance D1 and the second distance D2 to be different, a certain misalignment can exist between the isolation structure 20 on the first supporting surface 10a and the touch electrode TP on the second supporting surface 10b in the thickness direction Z of the display panel, so that the touch signal in the touch electrode TP and the signal of the light-emitting device 30 in the isolation opening 20a are not easily interfered with each other, thereby improving the working stability of the display panel.

[0186] Optionally, a display panel provided in an embodiment of the first aspect of the present application may be the display panel in any of the aforementioned embodiments. Therefore, a display panel provided in an embodiment of the present application may have the structure and beneficial effects of the display panel in any of the aforementioned embodiments, and the present application will not go into details therein.

[0187] For example, the substrate 10 may be the substrate 10 in any of the aforementioned embodiments, and the substrate 10 may include the pixel definition layer 200 and the substrate 100 in any of the aforementioned embodiments. The thickness of the pixel definition layer 200 and / or the substrate 100 may be adjusted by referring to the method in any of the aforementioned embodiments to achieve the difference between the first distance D1 and the second distance D2. For example, the light emitting device 30 may be the light emitting device 30 in any of the aforementioned embodiments, and the light emitting device 30 may include the first electrode 31, the light emitting unit 32, and the second electrode 33 in any of the aforementioned embodiments. For example, the isolation structure 20 may be the isolation structure 20 in any of the aforementioned embodiments, and the isolation structure 20 may enclose the isolation opening 20a and the receiving opening 20b in any of the aforementioned embodiments, and the isolation structure 20 may include the first isolation portion 21, the second isolation portion 22, and the conductive portion 23 in any of the aforementioned embodiments. For example, the touch electrode TP may be the touch electrode TP in any of the aforementioned embodiments, and the touch electrode TP may include the first touch portion TP1, the second touch portion TP2, and the third touch portion TP3 in any of the aforementioned embodiments.

[0188] The embodiment of the second aspect of the present application provides a display device, and the display device includes a display panel of any of the above-mentioned embodiments. 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 first aspects, 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 first aspects, which will not be repeated here.

[0189] 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.

[0190] According to the embodiments of the present application as above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is only limited by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: A substrate having a first supporting surface and a second supporting surface on one side in the thickness direction of the display panel, and the first supporting surface and the second supporting surface have a height difference in the thickness direction of the display panel; An isolation structure, disposed on the first supporting surface, the isolation structure encloses an isolation opening and a receiving opening; A light emitting device, at least a portion of the structure of the light emitting device is located in the isolation opening; A touch electrode is arranged on the second supporting surface and is partially located in the accommodating opening, and the touch electrode is insulated from the isolation structure.

2. The display panel according to claim 1, characterized in that: The substrate has a bottom surface on a side opposite to the first supporting surface and the second supporting surface in the thickness direction of the display panel, a first distance is set between the first supporting surface and the bottom surface, a second distance is set between the second supporting surface and the bottom surface, and the first distance is different from the second distance; Preferably, the second distance is greater than the first distance.

3. The display panel according to claim 1, characterized in that: The base includes a pixel definition layer and a substrate located on the side of the pixel definition layer away from the isolation structure, the pixel definition layer includes a pixel defining portion, the pixel defining portion encloses a pixel opening connected to the isolation opening, and the first supporting surface and the second supporting surface are surfaces of the pixel defining portion away from the substrate.

4. The display panel according to claim 3, characterized in that: The pixel defining portion includes a first defining portion and a second defining portion, the first supporting surface is a surface of the first defining portion facing away from the substrate, the second supporting surface is a surface of the second defining portion facing away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness is different from the second thickness; Preferably, the second thickness is greater than the first thickness.

5. The display panel according to claim 3, characterized in that: The substrate has a first supporting area and a second supporting area, the projection of the substrate located in the first supporting area in the thickness direction of the display panel is located within the projection of the first supporting surface in the thickness direction of the display panel, the projection of the substrate located in the second supporting area in the thickness direction of the display panel is located within the projection of the second supporting surface in the thickness direction of the display panel, the substrate located in the first supporting area has a third thickness, the substrate located in the second supporting area has a fourth thickness, and the third thickness is different from the fourth thickness; Preferably, the fourth thickness is greater than the third thickness.

6. The display panel according to claim 5, characterized in that: The substrate comprises a planarization layer and a driving circuit layer located on a side of the planarization layer away from the pixel definition layer, the planarization layer located in the first supporting region has a first sub-thickness, the planarization layer located in the second supporting region has a second sub-thickness, the first sub-thickness is different from the second sub-thickness, and / or the driving circuit layer located in the first supporting region has a third sub-thickness, the driving circuit layer located in the second supporting region has a fourth sub-thickness, the third sub-thickness is different from the fourth sub-thickness; Preferably, the second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness; Preferably, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first supporting region has a fifth sub-thickness, at least one insulating layer located in the second supporting region has a sixth sub-thickness, and the fifth sub-thickness is different from the sixth sub-thickness; Preferably, the sixth sub-thickness is greater than the fifth sub-thickness; Preferably, the conductive structure includes at least one of a transistor, a storage capacitor and a signal wiring; Preferably, the storage capacitor includes a first electrode plate and a second electrode plate located on a side of the first electrode plate close to the planarization layer, the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, the first insulating layer, the second insulating layer and the third insulating layer are stacked in sequence in a direction close to the planarization layer, the first electrode plate is arranged on a side of the first insulating layer away from the second insulating layer, the second electrode plate is arranged between the first insulating layer and the second insulating layer, the third insulating layer located in the first supporting area has the fifth sub-thickness, and the third insulating layer located in the second supporting area has the sixth sub-thickness; Preferably, the transistor comprises a source, a drain and a gate, the gate is arranged on a side of the first insulating layer away from the second insulating layer, and the source and the drain are arranged on a side of the third insulating layer away from the second insulating layer.

7. The display panel according to any one of claims 1 to 6, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion located at a side of the first isolation portion away from the substrate, wherein the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening; Preferably, the touch electrode comprises a first touch portion and a second touch portion, the first touch portion and the first isolation portion are provided in the same layer and made of the same material, and / or the second touch portion and the second isolation portion are provided in the same layer and made of the same material; Preferably, the second touch portion is arranged to protrude from the first touch portion toward the isolation structure; Preferably, the isolation structure further comprises a conductive portion located on a side of the first isolation portion facing the substrate, and the conductive portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening; Preferably, the touch electrode further comprises a third touch portion provided in the same layer and material as the conductive portion; Preferably, the third touch portion is arranged to protrude from the first touch portion toward the isolation structure; Preferably, in a direction away from the substrate, the light-emitting device comprises a first electrode, a light-emitting unit and a second electrode stacked in sequence, the material of the isolation structure comprises a conductive material, and the second electrode is connected to the isolation structure.

8. The display panel according to any one of claims 1 to 6, characterized in that: There are multiple touch electrodes, the multiple touch electrodes are extended along a first direction and spaced apart in a second direction, and the first direction and the second direction intersect with the thickness direction of the display panel in pairs; Preferably, each of the touch electrodes is located in a different accommodating opening; Preferably, the touch electrode comprises a main body portion extending along the first direction and an extension portion protruding from the main body portion in the second direction; Preferably, the display panel further comprises a touch wiring, and at least two of the touch electrodes are electrically connected via the touch wiring; Preferably, the display panel has a plurality of touch control areas, the touch control electrodes located in the same touch control area are electrically connected via the touch control wiring, and the touch control electrodes located in different touch control areas are insulated; Preferably, the touch control wiring is extended and formed along the second direction, and / or there are multiple touch control wirings, and the multiple touch control wirings are arranged at intervals in the first direction.

9. A display panel, characterized in that: include: A substrate, wherein the substrate has a first supporting surface and a second supporting surface on one side of the display panel in the thickness direction, and the substrate has a bottom surface on the other side of the display panel in the thickness direction, a first distance is between the first supporting surface and the bottom surface, a second distance is between the second supporting surface and the bottom surface, and the first distance is different from the second distance; An isolation structure, disposed on the first supporting surface, the isolation structure encloses an isolation opening and a receiving opening; A light emitting device, at least a portion of the structure of the light emitting device is located in the isolation opening; A touch electrode is arranged on the second supporting surface and is partially located in the accommodating opening, and the touch electrode is insulated from the isolation structure.

10. The display panel according to claim 9, characterized in that: The second distance is greater than the first distance.

11. The display panel according to claim 9, characterized in that: The base includes a pixel definition layer and a substrate located on the side of the pixel definition layer away from the isolation structure, the pixel definition layer includes a pixel defining portion, the pixel defining portion encloses a pixel opening connected to the isolation opening, and the first supporting surface and the second supporting surface are surfaces of the pixel defining portion away from the substrate.

12. The display panel according to claim 11, characterized in that: The pixel defining portion includes a first defining portion and a second defining portion, the first supporting surface is a surface of the first defining portion facing away from the substrate, the second supporting surface is a surface of the second defining portion facing away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness is different from the second thickness; Preferably, the second thickness is greater than the first thickness.

13. The display panel according to claim 11, characterized in that: The substrate has a first supporting area and a second supporting area, the projection of the substrate located in the first supporting area in the thickness direction of the display panel is located within the projection of the first supporting surface in the thickness direction of the display panel, the projection of the substrate located in the second supporting area in the thickness direction of the display panel is located within the projection of the second supporting surface in the thickness direction of the display panel, the substrate located in the first supporting area has a third thickness, the substrate located in the second supporting area has a fourth thickness, and the third thickness is different from the fourth thickness; Preferably, the fourth thickness is greater than the third thickness.

14. The display panel according to claim 13, characterized in that: The substrate comprises a planarization layer and a driving circuit layer located on a side of the planarization layer away from the pixel definition layer, the planarization layer located in the first supporting region has a first sub-thickness, the planarization layer located in the second supporting region has a second sub-thickness, the first sub-thickness is different from the second sub-thickness, and / or the driving circuit layer located in the first supporting region has a third sub-thickness, the driving circuit layer located in the second supporting region has a fourth sub-thickness, the third sub-thickness is different from the fourth sub-thickness; Preferably, the second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness; Preferably, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first supporting region has a fifth sub-thickness, at least one insulating layer located in the second supporting region has a sixth sub-thickness, and the fifth sub-thickness is different from the sixth sub-thickness; Preferably, the sixth sub-thickness is greater than the fifth sub-thickness; Preferably, the conductive structure includes at least one of a transistor, a storage capacitor and a signal wiring; Preferably, the storage capacitor includes a first electrode plate and a second electrode plate located on a side of the first electrode plate close to the planarization layer, the insulating layer includes a first insulating layer, a second insulating layer and a third insulating layer, the first insulating layer, the second insulating layer and the third insulating layer are stacked in sequence in a direction close to the planarization layer, the first electrode plate is arranged on a side of the first insulating layer away from the second insulating layer, the second electrode plate is arranged between the first insulating layer and the second insulating layer, the third insulating layer located in the first supporting area has the fifth sub-thickness, and the third insulating layer located in the second supporting area has the sixth sub-thickness; Preferably, the transistor comprises a source, a drain and a gate, the gate is arranged on a side of the first insulating layer away from the second insulating layer, and the source and the drain are arranged on a side of the third insulating layer away from the second insulating layer.

15. The display panel according to any one of claims 9 to 14, characterized in that: The isolation structure comprises a first isolation portion and a second isolation portion located at a side of the first isolation portion away from the substrate, wherein the second isolation portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening; Preferably, the touch electrode comprises a first touch portion and a second touch portion, the first touch portion and the first isolation portion are provided in the same layer and made of the same material, and / or the second touch portion and the second isolation portion are provided in the same layer and made of the same material; Preferably, the second touch portion is arranged to protrude from the first touch portion toward the isolation structure; Preferably, the isolation structure further comprises a conductive portion located on a side of the first isolation portion facing the substrate, and the conductive portion is arranged to protrude from the first isolation portion toward the isolation opening and / or the accommodating opening; Preferably, the touch electrode further comprises a third touch portion provided in the same layer and material as the conductive portion; Preferably, the third touch portion is arranged to protrude from the first touch portion toward the isolation structure; Preferably, in a direction away from the substrate, the light-emitting device comprises a first electrode, a light-emitting unit and a second electrode stacked in sequence, the material of the isolation structure comprises a conductive material, and the second electrode is connected to the isolation structure.

16. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 15.

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