Display panel and display device

Abstract

The application 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 has a first support surface and a second support surface, and the first support surface and the second support surface have a height difference in the thickness direction of the display panel; an isolation structure is arranged on the first support surface, the isolation structure encloses a separation opening and an accommodation opening; a light emitting device, at least part of the structure of the light emitting device is located in the separation opening; a touch electrode is arranged on the second support surface and partially located in the accommodation opening, and the touch electrode is arranged in insulation with the isolation structure. The display panel provided by the embodiment of the application has good working stability.

Description

Technical Field

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

[0002] Organic light-emitting diodes (OLEDs) and flat panel displays based on light-emitting diodes (LEDs) are widely used in various consumer electronics products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body and wide range of applications, becoming the mainstream of display devices.

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

[0004] This application provides a display panel and a display device, which aim to improve the working stability of the display panel.

[0005] An embodiment of the first aspect of this application provides a display panel, comprising: a substrate having a first support surface and a second support surface on one side of the display panel in the thickness direction, and the first support surface and the second support surface having a height difference in the thickness direction of the display panel; an isolation structure disposed on the first support surface, the isolation structure enclosing an isolation opening and a receiving opening; a light-emitting device, at least a portion of the structure of the light-emitting device being located within the isolation opening; and a touch electrode disposed on the second support surface and partially located within the receiving opening, the touch electrode being insulated from the isolation structure.

[0006] According to an embodiment of the first aspect of this application, the substrate has a bottom surface on the side opposite to the first support surface and the second support surface in the thickness direction of the display panel, the first support surface and the bottom surface have a first distance, the second support surface and the bottom surface have a second distance, and the first distance and the second distance are different.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the second distance is greater than the first distance.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the substrate 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 limiting portion, which surrounds and forms a pixel opening communicating with the isolation opening. The first support surface and the second support surface are the surfaces of the pixel limiting portion away from the substrate.

[0009] According to any of the foregoing embodiments of the first aspect of this 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 away from the substrate, the second supporting surface is the surface of the second defining portion away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness and the second thickness are different.

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

[0011] According to any of the foregoing embodiments of the first aspect of this application, the substrate has a first support region and a second support region. The projection of the substrate located in the first support region in the thickness direction of the display panel is located within the projection of the first support surface in the thickness direction of the display panel. The projection of the substrate located in the second support region in the thickness direction of the display panel is located within the projection of the second support surface in the thickness direction of the display panel. The substrate located in the first support region has a third thickness, and the substrate located in the second support region has a fourth thickness. The third thickness and the fourth thickness are different.

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

[0013] According to any of the foregoing embodiments of the first aspect of this application, the substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer opposite to the pixel definition layer. The planarization layer located in the first support region has a first sub-thickness, and the planarization layer located in the second support region has a second sub-thickness. The first sub-thickness and the second sub-thickness are different. And / or, the driving circuit layer located in the first support region has a third sub-thickness, and the driving circuit layer located in the second support region has a fourth sub-thickness. The third sub-thickness and the fourth sub-thickness are different.

[0014] According to any of the foregoing embodiments of the first aspect of this 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 foregoing embodiments of the first aspect of this application, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first support region has a fifth sub-thickness, at least one insulating layer located in the second support region has a sixth sub-thickness, and the fifth sub-thickness and the sixth sub-thickness are different.

[0016] According to any of the foregoing embodiments of the first aspect of this application, the sixth sub-thickness is greater than the fifth sub-thickness.

[0017] According to any of the foregoing embodiments of the first aspect of this application, the conductive structure includes at least one of a transistor, a storage capacitor, and a signal trace.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the storage capacitor includes a first electrode plate and a second electrode plate located on the side of the first electrode plate near the planarization layer. The insulating layer includes a first insulating layer, a second insulating layer, and a third insulating layer, which are stacked sequentially in the direction near the planarization layer. The first electrode plate is disposed on the side of the first insulating layer away from the second insulating layer, and the second electrode plate is disposed between the first insulating layer and the second insulating layer. The third insulating layer located in the first support region has a fifth sub-thickness, and the third insulating layer located in the second support region has a sixth sub-thickness.

[0019] According to any of the foregoing embodiments of the first aspect of this application, the transistor includes a source and a drain, and a gate, wherein the gate is disposed on the side of the first insulating layer opposite to the second insulating layer, and the source and drain are disposed on the side of the third insulating layer opposite to the second insulating layer.

[0020] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, wherein the second isolation portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening.

[0021] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode includes a first touch portion and a second touch portion, wherein the first touch portion and the first isolation portion are disposed in the same layer and with the same material, and / or, the second touch portion and the second isolation portion are disposed in the same layer and with the same material.

[0022] According to any of the foregoing embodiments of the first aspect of this application, the second touch portion protrudes from the first touch portion toward the isolation structure.

[0023] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a conductive portion located on the side of the first isolation portion facing the substrate, the conductive portion protruding from the first isolation portion toward the isolation opening and / or receiving opening.

[0024] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode further includes a third touch portion disposed in the same layer and material as the conductive portion.

[0025] According to any of the foregoing embodiments of the first aspect of this application, the third touch portion protrudes from the first touch portion toward the isolation structure.

[0026] According to any of the foregoing embodiments of the first aspect of this application, in the direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit and a second electrode stacked sequentially, 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 foregoing embodiments of the first aspect of this application, there are multiple touch electrodes. The multiple touch electrodes are extended and formed along a first direction and spaced apart in a second direction. The first direction and the second direction intersect each other with the thickness direction of the display panel.

[0028] According to any of the foregoing embodiments of the first aspect of this application, each touch electrode is located in a different receiving opening.

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

[0030] According to any of the foregoing embodiments of the first aspect of this application, the display panel further includes touch traces, and at least two touch electrodes are electrically connected through the touch traces.

[0031] According to any of the foregoing embodiments of the first aspect of this application, the display panel has multiple touch areas, touch electrodes located in the same touch area are electrically connected through touch traces, and touch electrodes located in different touch areas are insulated from each other.

[0032] According to any of the foregoing embodiments of the first aspect of this application, the touch traces are extended and formed along the second direction, and / or, the number of touch traces is multiple, and the multiple touch traces are spaced apart in the first direction.

[0033] An embodiment of the first aspect of this application also provides a display panel, comprising: a 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 display panel in the thickness direction, a first distance between the first supporting surface and the bottom surface, and a second distance between the second supporting surface and the bottom surface, wherein the first distance and the second distance are different; an isolation structure disposed on the first supporting surface, the isolation structure enclosing an isolation opening and a receiving opening; a light-emitting device, at least a portion of the structure of the light-emitting device being located within the isolation opening; and a touch electrode disposed on the second supporting surface and partially located within the receiving opening, the touch electrode being insulated from the isolation structure.

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

[0035] According to any of the foregoing embodiments of the first aspect of this application, the substrate 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 limiting portion, which surrounds and forms a pixel opening communicating with the isolation opening. The first support surface and the second support surface are the surfaces of the pixel limiting portion away from the substrate.

[0036] According to any of the foregoing embodiments of the first aspect of this 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 away from the substrate, the second supporting surface is the surface of the second defining portion away from the substrate, the first defining portion has a first thickness, the second defining portion has a second thickness, and the first thickness and the second thickness are different.

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

[0038] According to any of the foregoing embodiments of the first aspect of this application, the substrate has a first support region and a second support region. The projection of the substrate located in the first support region in the thickness direction of the display panel is located within the projection of the first support surface in the thickness direction of the display panel. The projection of the substrate located in the second support region in the thickness direction of the display panel is located within the projection of the second support surface in the thickness direction of the display panel. The substrate located in the first support region has a third thickness, and the substrate located in the second support region has a fourth thickness. The third thickness and the fourth thickness are different.

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

[0040] According to any of the foregoing embodiments of the first aspect of this application, the substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer opposite to the pixel definition layer. The planarization layer located in the first support region has a first sub-thickness, and the planarization layer located in the second support region has a second sub-thickness. The first sub-thickness and the second sub-thickness are different. And / or, the driving circuit layer located in the first support region has a third sub-thickness, and the driving circuit layer located in the second support region has a fourth sub-thickness. The third sub-thickness and the fourth sub-thickness are different.

[0041] According to any of the foregoing embodiments of the first aspect of this 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 foregoing embodiments of the first aspect of this application, the driving circuit layer includes a conductive structure and an insulating layer, at least one insulating layer located in the first support region has a fifth sub-thickness, at least one insulating layer located in the second support region has a sixth sub-thickness, and the fifth sub-thickness and the sixth sub-thickness are different.

[0043] According to any of the foregoing embodiments of the first aspect of this application, the sixth sub-thickness is greater than the fifth sub-thickness.

[0044] According to any of the foregoing embodiments of the first aspect of this application, the conductive structure includes at least one of a transistor, a storage capacitor, and a signal trace.

[0045] According to any of the foregoing embodiments of the first aspect of this application, the storage capacitor includes a first electrode plate and a second electrode plate located on the side of the first electrode plate near the planarization layer. The insulating layer includes a first insulating layer, a second insulating layer, and a third insulating layer, which are stacked sequentially in the direction near the planarization layer. The first electrode plate is disposed on the side of the first insulating layer away from the second insulating layer, and the second electrode plate is disposed between the first insulating layer and the second insulating layer. The third insulating layer located in the first support region has a fifth sub-thickness, and the third insulating layer located in the second support region has a sixth sub-thickness.

[0046] According to any of the foregoing embodiments of the first aspect of this application, the transistor includes a source and a drain, and a gate, wherein the gate is disposed on the side of the first insulating layer opposite to the second insulating layer, and the source and drain are disposed on the side of the third insulating layer opposite to the second insulating layer.

[0047] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the substrate, wherein the second isolation portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening.

[0048] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode includes a first touch portion and a second touch portion, wherein the first touch portion and the first isolation portion are disposed in the same layer and with the same material, and / or, the second touch portion and the second isolation portion are disposed in the same layer and with the same material.

[0049] According to any of the foregoing embodiments of the first aspect of this application, the second touch portion protrudes from the first touch portion toward the isolation structure.

[0050] According to any of the foregoing embodiments of the first aspect of this application, the isolation structure further includes a conductive portion located on the side of the first isolation portion facing the substrate, the conductive portion protruding from the first isolation portion toward the isolation opening and / or receiving opening.

[0051] According to any of the foregoing embodiments of the first aspect of this application, the touch electrode further includes a third touch portion disposed in the same layer and material as the conductive portion.

[0052] According to any of the foregoing embodiments of the first aspect of this application, the third touch portion protrudes from the first touch portion toward the isolation structure.

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

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

[0055] In a display panel provided in this application embodiment, the display panel includes a substrate, an isolation structure, a light-emitting device, and a touch electrode. The substrate has a first support surface and a second support surface on one side of the display panel in the thickness direction. The isolation structure is disposed on the first support surface, and the isolation structure encloses an isolation opening. At least a portion of the light-emitting device is located within the isolation opening. The isolation structure can be used to participate in dividing the sub-pixels of the display panel. The isolation structure also encloses an accommodating opening, and the touch electrode is disposed on the second support surface and partially located within the accommodating opening. This eliminates the need for an additional layer structure above the isolation structure to arrange the touch electrode, thereby allowing the display panel to have a smaller thickness.

[0056] By setting a height difference between the first support surface and the second support surface in the thickness direction of the display panel, the isolation structure on the first support surface and the touch electrode on the second support surface can be misaligned in the thickness direction of the display panel. This makes it less likely for the touch signal in the touch electrode to interfere with the signal of the light-emitting device in the isolation opening, thereby improving the working stability of the display panel. Attached Figure Description

[0057] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a partially enlarged schematic diagram of an isolation structure and a touch electrode according to an embodiment of this application;

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

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

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

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

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

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

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

[0066] Figure 9 This is a partial structural schematic diagram of a touch electrode according to an embodiment of this application.

[0067] Explanation of reference numerals in the attached figures:

[0068] 10. Base; 10a. First support surface; 10b. Second support surface; 10c. Bottom surface;

[0069] 100, Substrate; 100a, First Support Region; 100b, Second Support Region; 110, Substrate; 120, Driving Circuit Layer; 121, Conductive Structure; 121a, Transistor; 121aa, Gate; 121ab, Source / Drain; 121b, Storage Capacitor; 121ba, First Electrode; 121bb, Second Electrode; 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 limiting section; 211, First limiting section; 212, Second limiting section; 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 part; TP2, second touch part; TP3, third touch part;

[0075] TPL, touch screen wiring;

[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; H33, Fifth sub-thickness; H4, Fourth thickness; H41, Second sub-thickness; H43, Sixth sub-thickness;

[0079] X, first direction;

[0080] Y, second direction;

[0081] Z, thickness direction. Detailed Implementation

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

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0084] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0085] This application provides a display panel and a display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel and the display device.

[0086] Figure 1 This is a partially enlarged schematic diagram of the isolation structure 20 and the touch electrode TP according to an embodiment of this application. Figure 2 This is a schematic diagram of the structure of a touch electrode TP and a touch trace TPL according to an embodiment of this application. Figure 3This is a partial cross-sectional schematic diagram of a display panel according to an embodiment of this application. In the figure, the X direction is the first direction X, the Y direction is the second direction Y, and the Z direction is the thickness direction Z of the display panel. The first direction X, the second direction Y, and the thickness direction Z of the display panel intersect each other. 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 accompanying drawings of this application, to facilitate the demonstration of the isolation structure 20 and the touch electrode TP, the number of schematic representations of the isolation opening 20a, the receiving opening 20b, and the touch electrode TP has been reduced. Therefore, the drawings are only for structural illustration and do not 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 this application provides a display panel, including: a substrate 10 having a first support surface 10a and a second support surface 10b on one side in the thickness direction Z of the display panel, and the first support surface 10a and the second support surface 10b having a height difference in the thickness direction Z of the display panel; an isolation structure 20 disposed on the first support surface 10a, the isolation structure 20 enclosing an isolation opening 20a and a receiving opening 20b; a light-emitting device 30, at least a portion of the structure of the light-emitting device 30 being located within the isolation opening 20a; and a touch electrode TP disposed on the second support surface 10b and partially located within the receiving opening 20b, the touch electrode TP being insulated from the isolation structure 20.

[0088] In a display panel provided in this application embodiment, 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 display panel in the thickness direction Z. The isolation structure 20 is disposed on the first support surface 10a and forms an isolation opening 20a. At least a portion of the structure of the light-emitting device 30 is located within the isolation opening 20a. The isolation structure 20 can be used to participate in dividing the sub-pixels of the display panel.

[0089] Related solutions for the isolation structure 20 (also known as a partition structure, etc.) are found in patent (application) CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, PCT / CN2024 / 099072, and CN1179797. The structure, materials and preparation methods are described in CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, CN117500332A, etc., and the contents of these documents are incorporated herein by reference.

[0090] Optionally, the first support surface 10a may be a surface on the substrate 10 that directly contacts the isolation structure 20. The projection of the first support 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 support 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 and forms a receiving opening 20b. The touch electrode TP is disposed on the second support surface 10b and partially located within the receiving opening 20b, so that no additional layer structure is required above the isolation structure 20 to arrange the touch electrode TP, thereby enabling the display panel to have a smaller thickness.

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

[0093] Optionally, the isolation structure 20 may be in the form of a grid, and the hollow areas in the grid-shaped isolation structure 20 may form isolation openings 20a and receiving openings 20b, so as to facilitate the division of sub-pixels of the display panel by the isolation structure 20 and to facilitate the reception of 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 connection is not easily generated between the touch electrode TP and the isolation structure 20.

[0095] By setting a height difference between the first support surface 10a and the second support surface 10b in the thickness direction Z of the display panel, the isolation structure 20 on the first support surface 10a and the touch electrode TP on the second support surface 10b can be misaligned in the thickness direction Z of the display panel. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0096] Optionally, the touch electrode TP is located within the receiving opening 20b. This can mean that a portion of the touch electrode TP structure is located within the receiving opening 20b, while another portion is located outside the receiving opening 20b. For example, due to the height difference between the second support surface 10b and the first support surface 10a, a portion of the touch electrode TP structure can be located within the receiving opening 20b, while another portion is located outside. This allows for a certain degree of 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. This reduces the likelihood of mutual interference between the touch signal in the touch electrode TP and the signal from the light-emitting device 30 in the isolation opening 20a, thereby improving the operational stability of the display panel.

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

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

[0099] Optionally, corresponding to the arrangement of the touch electrodes TP, multiple receiving openings 20b can be extended and formed along the first direction X and spaced apart in the second direction Y. Similarly, multiple second support surfaces 10b can also be extended and formed 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 a relatively uniform and sufficient number of touch electrodes TP to realize the touch function, and the arrangement of the touch electrodes TP is not likely to affect the electrical connection between the second electrodes 33 of adjacent light-emitting devices 30 through the isolation structure 20, which improves the working reliability of the display panel.

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

[0102] Optionally, a single touch electrode TP may include a main body TPa and at least two extensions TPb, wherein the extensions TPb in a single touch electrode TP may be disposed on both sides of the main body TPa in the second direction Y.

[0103] In these alternative embodiments, by providing an extension TPb that protrudes from the main body TPa, the arrangement area of ​​the touch electrode TP can be increased, thereby 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 trace TPL, through which at least two touch electrodes TP can be electrically connected to facilitate the control and sensing of the touch electrodes TP, thereby facilitating the implementation of the touch function of the display panel.

[0105] Optionally, the display panel may have multiple touch areas TPA. Touch electrodes TP located in the same touch area TPA can be electrically connected through touch traces TPL. Touch electrodes TP located in different touch areas TPA can be insulated, so that the touch areas TPA can be used as units to participate in the touch operation of the display panel, so as to facilitate the 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 can be electrically connected through multiple or a single touch trace TPL, and this application does not make specific limitations on it.

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

[0108] Optionally, there can be multiple touch traces (TPLs). These multiple touch traces (TPLs) can be spaced out in the first direction X to reduce the resistance when transmitting touch signals in the display panel, which helps to improve the working stability of the display panel.

[0109] Optionally, the touch trace TPL can be used to connect to the touch key integrated circuit (TouchKey IC), so that the touch electrode TP can be electrically connected to the touch chip through the touch trace 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 trace TPL to perform identification and positioning, thereby realizing the touch function of the display panel.

[0110] In some optional embodiments of this 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 may be specifically used as an excitation and detection electrode. 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 the recognition and positioning can be performed by the capacitance change, thereby realizing the 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 corresponding touch area TPA will be affected by the finger and conduct some charge, causing a change in capacitance. Here, Cp is the parasitic capacitance between the touch electrode TP and ground, and Cf is the induced capacitance between the sensing electrode generated by the human body when the finger touches the display panel and ground. When the finger touches the display panel as a conductor, it is equivalent to Cp and Cf being connected in parallel, making the parasitic capacitance equal to Cp + Cf. This increase in parasitic capacitance allows for identification and positioning through capacitance changes, thus enabling touch display on the display panel.

[0112] When the touch electrode TP can be specifically used as an excitation and detection electrode, that is, when the display panel is a display panel that realizes touch positioning based on a self-capacitive touch architecture, the display panel does not need to be equipped with corresponding driving electrodes for excitation and receiving electrodes for detection. Only the touch electrode TP is set to realize the touch function of the display panel. This eliminates the need to set up too many layers to arrange the electrodes for touch function, and allows the display panel to have a smaller thickness.

[0113] In some alternative embodiments, in the 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 stacked sequentially.

[0114] The display panel provided in some embodiments of this 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 serve as pixel electrodes of the display panel. One of the first electrode 31 and the second electrode 33 can serve as an anode, and the other can serve as a cathode to drive the light-emitting unit 32 to emit light. In this embodiment, 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 for illustrative purposes.

[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 this application, by setting a height difference between the first support surface 10a and the second support surface 10b in the thickness direction Z of the display panel, the isolation structure 20 on the first support surface 10a and the touch electrode TP on the second support surface 10b can be misaligned in the thickness direction Z of the display panel. This makes it less likely for the touch signal in the touch electrode TP and the signal of the second electrode 33 transmitted in the isolation structure 20 to interfere with each other, thereby improving the working stability of the display panel.

[0119] In some alternative embodiments, the isolation structure 20 may include a first isolation portion 21 and a second isolation portion 22 located on the side of the first isolation portion 21 opposite to the base 10, the second isolation portion 22 being disposed protruding from the first isolation portion 21 toward the isolation opening 20a and / or the receiving opening 20b.

[0120] By providing the second isolation portion 22 protruding from the first isolation portion 21 toward the isolation opening 20a and / or the receiving opening 20b, the second isolation portion 22 can block at least part of the material used to prepare the light-emitting unit 32 and the second electrode 33 when the light-emitting unit 32 and the second electrode 33 of the display panel are vapor-deposited, thereby isolating the light-emitting unit 32 and the second electrode 33 between adjacent sub-pixels. This facilitates the formation of multiple spaced light-emitting units 32 and the second electrode 33, eliminating the need for a high-precision mask when vapor-depositing the light-emitting unit 32 and the second electrode 33 of the display panel. For example, it eliminates the need for a high-precision fine metal mask (FMM) when vapor-depositing the light-emitting unit 32 and the second electrode 33, thereby significantly reducing the manufacturing 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 part 21, so that the second electrodes 33 of adjacent light-emitting devices 30 can be electrically connected through the first isolation part 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, the conductive portion 23 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 providing the conductive portion 23 to protrude from the first isolation portion 21 toward the isolation opening 20a and / or the receiving opening 20b, it is possible to facilitate the overlap between the second electrode 33 and the conductive portion 23, and to better increase the overlap area between the second electrode 33 and the conductive portion 23, thereby better reducing the resistance of the display panel.

[0124] In some optional embodiments of this application, at least a portion of the film structure in the touch electrode TP can be disposed in the same layer and with the same material as the corresponding film structure in the isolation structure 20, so that at least a portion of the film structure in the touch electrode TP can use the same or similar preparation equipment as the corresponding film structure in the isolation structure 20, and so that at least a portion of the film structure in the touch electrode TP and the corresponding film structure in the isolation structure 20 can be prepared in the same preparation step, thereby 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, wherein the first touch portion TP1 and the first isolation portion 21 are disposed in the same layer and with the same material, and / or the second touch portion TP2 and the second isolation portion 22 are disposed in the same layer and with the same material.

[0126] Optionally, the second touch unit TP2 protrudes from the first touch unit 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 be in the same layer and with the same material, and the second touch portion TP2 and the second isolation portion 22 to be in the same layer and with the same material, and by 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 fabricated in the same fabrication step using the same or similar fabrication equipment, and the second touch portion TP2 in the touch electrode TP and the second isolation portion 22 in the isolation structure 20 can be fabricated in the same fabrication step using the same or similar fabrication equipment, thereby improving the fabrication 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 material as the conductive portion 23.

[0129] Optionally, the third touch unit TP3 may protrude from the first touch unit TP1 toward the isolation structure 20.

[0130] In these optional embodiments, by setting the third touch portion TP3 and the conductive portion 23 to be in the same layer and made of 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 fabricated in the same fabrication step using the same or similar fabrication equipment, thereby improving the fabrication 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 support surface 10a and the second support surface 10b in the thickness direction Z of the display panel. There is a first distance D1 between the first support surface 10a and the bottom surface 10c, and a second distance D2 between the second support surface 10b and the bottom surface 10c. The first distance D1 and the second distance D2 are different.

[0132] Optionally, the first distance D1 can be the maximum distance between the first support surface 10a and the bottom surface 10c, or the first distance D1 can be the average distance between the first support 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 support surface 10a can correspond to the thickness of the substrate 10 corresponding to the second support surface 10b. This makes it easier 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 making it easier to achieve 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.

[0134] In some embodiments of this application, there are various ways to specifically implement the height difference between the first support surface 10a and the second support 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 support surface 10b to be higher than the height of the first support surface 10a, for example, by setting the second distance D2 to be greater than the first distance D1, the second support surface 10b can support the touch electrode TP to a higher height. This allows a portion of the structure of the touch electrode TP to extend out of the isolation opening 20a in a direction away from the substrate 10, 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. Furthermore, by ensuring that the portion of the touch electrode TP extending out of the isolation opening 20a in a direction away from the substrate 10 is relatively far from the circuit structure in the substrate 10, the touch signal in the touch electrode TP is less likely to interfere with the signal of the circuit structure in the substrate 10, thus significantly improving the operational stability of the display panel.

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

[0138] like Figure 4 As shown, in some alternative 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 support surface 10a to be higher than the height of the second support surface 10b, for example, by setting the first distance D1 to be greater than the second distance D2, the height of the second support surface 10b supporting the touch electrode TP is lower, so that part of the structure of the touch electrode TP can extend out of the isolation opening 20a in the direction close to the substrate 10, so that there is 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.

[0140] For ease of description, the following embodiments will be illustrated by the example that "the height of the second support surface 10b can be higher than the height of the first support surface 10a. For example, the second distance D2 can be greater than the first distance D1."

[0141] In some optional embodiments of this application, the thickness of at least one film layer in the substrate 10 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.

[0142] Figure 5 This is a partial cross-sectional schematic diagram of a display panel according to another embodiment of this application. Figure 6This is a partial cross-sectional schematic diagram of a display panel according to another embodiment of this application.

[0143] like Figure 5 and Figure 6 As shown, in some optional embodiments, the substrate 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, which surrounds and forms a pixel opening 210a that communicates with the isolation opening 20a. The first support surface 10a and the second support surface 10b are the surfaces of the pixel defining portion 210 away from the substrate 100.

[0144] Optionally, a portion of the structure of the light-emitting device 30 may be located within the pixel opening 210a. For example, one part of the structure of the light-emitting device 30 may be located within the pixel opening 210a, while another part of the structure of the light-emitting device 30 may extend out of the pixel opening 210a and be located within 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. Specifically, by adjusting the thickness of at least one of the substrate 100 and the pixel definition layer 200, a height difference can be achieved 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 support surface 10a is the surface of the first defining portion 211 facing away from the substrate 100, and the second support 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, and the second defining portion 212 has a second thickness H2. The first thickness H1 and the second thickness H2 are different.

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

[0148] In these optional embodiments, the thickness of the pixel limiting portion 210 can be differentiated 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. This results in 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. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0149] Optionally, the second thickness H2 can be greater than the first thickness H1, so that the height of the second support surface 10b in the aforementioned embodiment is higher than the height of the first support surface 10a. For example, it can facilitate the realization that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second support 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 so that 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, thereby making it less likely for the touch signal in the touch electrode TP to interfere with the signal of the circuit structure in the substrate 100, and thus improving the working stability of the display panel.

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

[0151] Optionally, the third thickness H3 may be the maximum thickness of the substrate 100 located in the first support region 100a, and the fourth thickness H4 may be the maximum thickness of the substrate 100 located in the second support region 100b. Alternatively, the third thickness H3 may be the average thickness of the substrate 100 located in the first support region 100a, and the fourth thickness H4 may be the average thickness of the substrate 100 located in the second support region 100b.

[0152] In these optional embodiments, the thickness of the substrate 100 can be differentiated 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. This results in 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. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0153] Optionally, the fourth thickness H4 can be greater than the third thickness H3, so that the height of the second support surface 10b in the aforementioned embodiment is higher than the height of the first support surface 10a. For example, it can facilitate the realization that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second support 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 so that 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, thereby making it less likely for the touch signal in the touch electrode TP to interfere with the signal of the circuit structure in the substrate 100, and thus improving the working stability of the display panel.

[0154] Figure 7 This is a partial cross-sectional schematic diagram of a display panel according to another embodiment of this application. Figure 8 This is a partial cross-sectional schematic diagram of a display panel according to another embodiment of this application.

[0155] like Figure 7 and Figure 8 As shown, in some embodiments of this application, the substrate 100 can be configured in various ways. For example, the substrate 100 may include a planarization layer 130 and a driving circuit layer 120 located on the side of the planarization layer 130 away from the pixel definition layer 200.

[0156] Optionally, the substrate 100 may further include a substrate 110 disposed on the side of the driving circuit layer 120 opposite to the planarization layer 130. The bottom surface 10c of the substrate 10 may be the surface of the substrate 110 opposite to 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 can be used to participate in signal transmission in the substrate 100, and the insulating layer 122 can 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 trace. For example, the storage capacitor 121b may include a first electrode 121ba and a second electrode 121bb located on the side of the first electrode 121ba near the planarization layer 130. For example, the transistor 121a may include a source / drain electrode 121ab and a gate electrode 121aa.

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

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

[0161] In some optional embodiments of this application, the thickness of the substrate 100 can be adjusted by adjusting the thickness of at least one film layer structure in the substrate 100, so that the first support surface 10a and the second support 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 support surface 10a and the touch electrode TP on the second support 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 support region 100a has a first sub-thickness H31, and the planarization layer 130 located in the second support region 100b has a second sub-thickness H41, wherein the first sub-thickness H31 and the second sub-thickness H41 are different.

[0163] Optionally, the first sub-thickness H31 may be the maximum thickness of the planarization layer 130 located in the first support region 100a, and the second sub-thickness H41 may be the maximum thickness of the planarization layer 130 located in the second support region 100b. Alternatively, the first sub-thickness H31 may be the average thickness of the planarization layer 130 located in the first support region 100a, and the second sub-thickness H41 may be the average thickness of the planarization layer 130 located in the second support region 100b.

[0164] In these optional embodiments, the thickness of the planarization layer 130 can be differentiated 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. This results in 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. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0165] Optionally, the second sub-thickness H41 can be greater than the first sub-thickness H31, so that the height of the second support surface 10b in the aforementioned embodiment is higher than the height of the first support surface 10a. For example, it can facilitate the realization that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second support 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 so that 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, thereby making it less likely for the touch signal in the touch electrode TP to interfere with the signal of the circuit structure in the substrate 100, and thus improving the working stability of the display panel.

[0166] In some alternative embodiments, the drive circuit layer 120 located in the first support region 100a has a third sub-thickness, and the drive circuit layer 120 located in the second support region 100b has a fourth sub-thickness, the third sub-thickness and the fourth sub-thickness being different.

[0167] Optionally, the third sub-thickness may be the maximum thickness of the drive circuit layer 120 located in the first support region 100a, and the fourth sub-thickness may be the maximum thickness of the drive circuit layer 120 located in the second support region 100b. Alternatively, the third sub-thickness may be the average thickness of the drive circuit layer 120 located in the first support region 100a, and the fourth sub-thickness may be the average thickness of the drive circuit layer 120 located in the second support region 100b.

[0168] In these optional embodiments, the thickness of the driving circuit layer 120 can be differentiated 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. This results in 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. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0169] Optionally, the fourth sub-thickness can be greater than the third sub-thickness to achieve a height of the second support surface 10b higher than the height of the first support surface 10a in the aforementioned embodiment. For example, it can facilitate the realization that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second support 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 so that 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, thereby making it less likely for the touch signal in the touch electrode TP to interfere with the signal of the circuit structure in the substrate 100, and thus improving the working stability of the display panel.

[0170] In some embodiments of this 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 support surface 10a and the second support 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 support surface 10a and the touch electrode TP on the second support surface 10b in the thickness direction Z of the display panel.

[0171] like Figure 8 As shown, in some optional embodiments, at least one insulating layer 122 located in the first support region 100a has a fifth sub-thickness H33, and at least one insulating layer 122 located in the second support region 100b has a sixth sub-thickness H43, wherein the fifth sub-thickness H33 and the sixth sub-thickness H43 are different.

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

[0173] In these optional embodiments, the thickness of the insulating layer 122 can be differentiated 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. This results in 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. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0174] Optionally, the sixth sub-thickness H43 can be greater than the fifth sub-thickness H33, so that the height of the second support surface 10b in the aforementioned embodiment is higher than the height of the first support surface 10a. For example, it can facilitate the realization that the second distance D2 in the aforementioned embodiment is greater than the first distance D1, so that the second support 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 so that 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, thereby making it less likely for the touch signal in the touch electrode TP to interfere with the signal of the circuit structure in the substrate 100, and thus improving the working stability of the display panel.

[0175] In some alternative embodiments, the third insulating layer 122c located in the first support region 100a has a fifth sub-thickness H33, and the third insulating layer 122c located in the second support region 100b 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 support surface 10a and the second support 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 support region 100a is different from that in the second support region 100b, the spacing between the first electrode plate 121ba and the second electrode plate 121bb located below the third insulating layer 122c is not easily affected, thereby enabling the storage capacitor 121b to have better structural stability and improving the working reliability of the display panel.

[0177] In some optional embodiments of this application, the number of touch electrodes TP can be multiple, so as to realize the touch function of the display panel. There are various ways to arrange the individual touch electrodes TP.

[0178] Figure 9This is a partial cross-sectional view of a display panel provided in another embodiment of this 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. The encapsulation layer 40 can be used to encapsulate 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 facing 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 moisture on the operation of the light-emitting device 30. For example, the first encapsulation layer 41 may be prepared by 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 facing away from the substrate 100, 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 the second encapsulation layer 42 can have good flowability during the manufacturing process of the display panel, and the surface of the second encapsulation layer 42 facing away from the substrate 100 can have good flatness, which can facilitate the formation of subsequent film layers. For example, the second encapsulation layer 42 can be prepared by inkjet printing (IJP) technology.

[0182] Optionally, the encapsulation layer 40 may further include a third encapsulation layer 43 located on the side of the second encapsulation layer 42 facing away from the substrate 100, to better improve the encapsulation effect of the display panel. Optionally, the material of the third encapsulation layer 43 may include inorganic materials, so that the third encapsulation layer 43 can better reduce the impact of moisture on the operation of the light-emitting device 30. For example, the third encapsulation layer 43 can be prepared by chemical vapor deposition.

[0183] Please see Figures 1 to 9An embodiment of the first aspect of this application also provides a display panel, comprising: a substrate 10, the substrate 10 having a first support surface 10a and a second support surface 10b on one side of the display panel in the thickness direction Z, and a bottom surface 10c on the other side of the substrate 10 in the thickness direction Z, a first distance D1 between the first support surface 10a and the bottom surface 10c, and a second distance D2 between the second support surface 10b and the bottom surface 10c, wherein the first distance D1 and the second distance D2 are different; an isolation structure 20 disposed on the first support surface 10a, the isolation structure 20 enclosing an isolation opening 20a and a receiving opening 20b; a light-emitting device 30, at least a portion of the structure of the light-emitting device 30 being located within the isolation opening 20a; and a touch electrode TP disposed on the second support surface 10b and partially located within the receiving opening 20b, the touch electrode TP being insulated from the isolation structure 20.

[0184] In a display panel provided in this application embodiment, 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 display panel in the thickness direction Z. The isolation structure 20 is disposed on the first support surface 10a, and the isolation structure 20 encloses an isolation opening 20a. At least a portion of the structure of the light-emitting device 30 is located within the isolation opening 20a. The isolation structure 20 can be used to participate in dividing the sub-pixels of the display panel. The isolation structure 20 also encloses an accommodating opening 20b. The touch electrode TP is disposed on the second support surface 10b and partially located within the accommodating opening 20b, so that no additional layer structure is needed above the isolation structure 20 to arrange the touch electrode TP, thereby enabling the display panel to have a smaller thickness.

[0185] The substrate 10 has a bottom surface 10c on the other side of the display panel in the thickness direction Z. There is a first distance D1 between the first support surface 10a and the bottom surface 10c, and a second distance D2 between the second support surface 10b and the bottom surface 10c. By setting the first distance D1 and the second distance D2 to be different, the isolation structure 20 on the first support surface 10a and the touch electrode TP on the second support surface 10b can be misaligned in the thickness direction Z of the display panel. This makes it less likely for the touch signal in the touch electrode TP to interfere with the signal of the light-emitting device 30 in the isolation opening 20a, thereby improving the working stability of the display panel.

[0186] Optionally, the display panel provided in the first aspect of this application may be the display panel in any of the foregoing embodiments. Therefore, the display panel provided in the embodiments of this application may have the structure and beneficial effects of the display panel in any of the foregoing embodiments, and this application will not elaborate on it further.

[0187] For example, the substrate 10 can be the substrate 10 in any of the foregoing embodiments. The substrate 10 may include the pixel definition layer 200 and the substrate 100 in any of the foregoing embodiments. The thickness of the pixel definition layer 200 and / or the substrate 100 can be adjusted by referring to the method in any of the foregoing embodiments to achieve a difference between the first distance D1 and the second distance D2. For example, the light-emitting device 30 can be the light-emitting device 30 in any of the foregoing embodiments. 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 foregoing embodiments. For example, the isolation structure 20 can be the isolation structure 20 in any of the foregoing embodiments. The isolation structure 20 may enclose and form the isolation opening 20a and the receiving opening 20b in any of the foregoing embodiments. 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 foregoing embodiments. For example, the touch electrode TP can be the touch electrode TP in any of the foregoing embodiments. 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 foregoing embodiments.

[0188] An embodiment of the second aspect of this application provides a display device, which includes the display panel of any of the above embodiments. Since the display device provided by the second aspect of this application includes the display panel of any of the first aspects, it possesses the beneficial effects of the display panel of any of the first aspects, which will not be elaborated further here.

[0189] The display devices in this application include, but are not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0190] The embodiments described above are not exhaustive and do not limit the invention to specific examples. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that, include: The substrate has a first support surface and a second support surface on one side of the display panel in the thickness direction, and the first support surface and the second support surface have a height difference in the thickness direction of the display panel; An isolation structure is disposed on the first support surface. The isolation structure encloses and forms an isolation opening and a receiving opening. The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the base. The second isolation portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening. The isolation structure also includes a conductive portion located on the side of the first isolation portion toward the base. The conductive portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening. A light-emitting device, wherein at least a portion of the structure of the light-emitting device is located within the isolation opening; A touch electrode is disposed on the second support surface and partially located within the receiving opening. The touch electrode is insulated from the isolation structure. The touch electrode includes a first touch portion and a second touch portion. The first touch portion and the first isolation portion are disposed on the same layer and made of the same material, and / or the second touch portion and the second isolation portion are disposed on the same layer and made of the same material.

2. The display panel according to claim 1, characterized in that, The substrate has a bottom surface on the side opposite to the first support surface and the second support surface in the thickness direction of the display panel. There is a first distance between the first support surface and the bottom surface, and a second distance between the second support surface and the bottom surface. The first distance and the second distance are different.

3. The display panel according to claim 2, characterized in that, The second distance is greater than the first distance.

4. The display panel according to claim 1, characterized in that, The substrate 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, which encloses a pixel opening that communicates with the isolation opening. The first support surface and the second support surface are the surfaces of the pixel defining portion away from the substrate.

5. The display panel according to claim 4, characterized in that, 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, and 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, and the second defining portion has a second thickness. The first thickness and the second thickness are different.

6. The display panel according to claim 5, characterized in that, The second thickness is greater than the first thickness.

7. The display panel according to claim 4, characterized in that, The substrate has a first support region and a second support region. The projection of the substrate located in the first support region onto the thickness direction of the display panel is located within the projection of the first support surface onto the thickness direction of the display panel. The projection of the substrate located in the second support region onto the thickness direction of the display panel is located within the projection of the second support surface onto the thickness direction of the display panel. The substrate located in the first support region has a third thickness, and the substrate located in the second support region has a fourth thickness. The third thickness and the fourth thickness are different.

8. The display panel according to claim 7, characterized in that, The fourth thickness is greater than the third thickness.

9. The display panel according to claim 7, characterized in that, The substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer opposite to the pixel definition layer. The planarization layer located in the first support region has a first sub-thickness, and the planarization layer located in the second support region has a second sub-thickness. The first sub-thickness and the second sub-thickness are different. And / or, the driving circuit layer located in the first support region has a third sub-thickness, and the driving circuit layer located in the second support region has a fourth sub-thickness. The third sub-thickness and the fourth sub-thickness are different.

10. The display panel according to claim 9, characterized in that, The second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness.

11. The display panel according to claim 9, characterized in that, The driving circuit layer includes a conductive structure and an insulating layer. At least one insulating layer located in the first support region has a fifth sub-thickness, and at least one insulating layer located in the second support region has a sixth sub-thickness. The fifth sub-thickness and the sixth sub-thickness are different.

12. The display panel according to claim 11, characterized in that, The thickness of the sixth sub-sub is greater than the thickness of the fifth sub-sub-sub.

13. The display panel according to claim 11, characterized in that, The conductive structure includes at least one of a transistor, a storage capacitor, and a signal trace.

14. The display panel according to claim 13, characterized in that, The storage capacitor includes a first electrode plate and a second electrode plate located on the side of the first electrode plate near the planarization layer. The insulating layer includes a first insulating layer, a second insulating layer, and a third insulating layer, which are stacked sequentially in the direction near the planarization layer. The first electrode plate is disposed on the side of the first insulating layer away from the second insulating layer, and the second electrode plate is disposed between the first insulating layer and the second insulating layer. The third insulating layer located in the first support region has the fifth sub-thickness, and the third insulating layer located in the second support region has the sixth sub-thickness.

15. The display panel according to claim 14, characterized in that, The transistor includes a source, a drain, and a gate. The gate is disposed on the side of the first insulating layer away from the second insulating layer, and the source and drain are disposed on the side of the third insulating layer away from the second insulating layer.

16. The display panel according to any one of claims 1 to 15, characterized in that, The second touch portion protrudes from the first touch portion toward the isolation structure.

17. The display panel according to any one of claims 1 to 15, characterized in that, The touch electrode also includes a third touch portion disposed in the same layer and material as the conductive portion.

18. The display panel according to claim 17, characterized in that, The third touch unit protrudes from the first touch unit toward the isolation structure.

19. The display panel according to any one of claims 1 to 15, characterized in that, In a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit, and a second electrode stacked sequentially. The material of the isolation structure includes a conductive material, and the second electrode is connected to the isolation structure.

20. The display panel according to any one of claims 1 to 15, characterized in that, The number of touch electrodes is multiple, and the multiple touch electrodes are extended and formed along a first direction and spaced apart in a second direction. The first direction and the second direction intersect each other with the thickness direction of the display panel.

21. The display panel according to claim 20, characterized in that, Each of the touch electrodes is located within a different receiving opening.

22. The display panel according to claim 20, characterized in that, The touch electrode includes a main body portion extending along the first direction and an extension portion protruding from the main body portion in the second direction.

23. The display panel according to claim 20, characterized in that, The display panel also includes touch traces, and at least two of the touch electrodes are electrically connected through the touch traces.

24. The display panel according to claim 23, characterized in that, The display panel has multiple touch areas. The touch electrodes located in the same touch area are electrically connected through the touch traces, and the touch electrodes located in different touch areas are insulated from each other.

25. The display panel according to claim 23, characterized in that, The touch traces extend and are formed along the second direction, and / or the number of touch traces is multiple, and the multiple touch traces are spaced apart in the first direction.

26. A display panel, characterized in that, include: The substrate has a first support surface and a second support surface on one side of the display panel in the thickness direction, and a bottom surface on the other side of the display panel in the thickness direction. There is a first distance between the first support surface and the bottom surface, and a second distance between the second support surface and the bottom surface. The first distance and the second distance are different. An isolation structure is disposed on the first support surface. The isolation structure encloses and forms an isolation opening and a receiving opening. The isolation structure includes a first isolation portion and a second isolation portion located on the side of the first isolation portion away from the base. The second isolation portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening. The isolation structure also includes a conductive portion located on the side of the first isolation portion toward the base. The conductive portion protrudes from the first isolation portion toward the isolation opening and / or the receiving opening. A light-emitting device, wherein at least a portion of the structure of the light-emitting device is located within the isolation opening; A touch electrode is disposed on the second support surface and partially located within the receiving opening. The touch electrode is insulated from the isolation structure. The touch electrode includes a first touch portion and a second touch portion. The first touch portion and the first isolation portion are disposed on the same layer and made of the same material, and / or the second touch portion and the second isolation portion are disposed on the same layer and made of the same material.

27. The display panel according to claim 26, characterized in that, The second distance is greater than the first distance.

28. The display panel according to claim 26, characterized in that, The substrate 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, which encloses a pixel opening that communicates with the isolation opening. The first support surface and the second support surface are the surfaces of the pixel defining portion away from the substrate.

29. The display panel according to claim 28, characterized in that, 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, and 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, and the second defining portion has a second thickness. The first thickness and the second thickness are different.

30. The display panel according to claim 29, characterized in that, The second thickness is greater than the first thickness.

31. The display panel according to claim 28, characterized in that, The substrate has a first support region and a second support region. The projection of the substrate located in the first support region onto the thickness direction of the display panel is located within the projection of the first support surface onto the thickness direction of the display panel. The projection of the substrate located in the second support region onto the thickness direction of the display panel is located within the projection of the second support surface onto the thickness direction of the display panel. The substrate located in the first support region has a third thickness, and the substrate located in the second support region has a fourth thickness. The third thickness and the fourth thickness are different.

32. The display panel according to claim 31, characterized in that, The fourth thickness is greater than the third thickness.

33. The display panel according to claim 31, characterized in that, The substrate includes a planarization layer and a driving circuit layer located on the side of the planarization layer opposite to the pixel definition layer. The planarization layer located in the first support region has a first sub-thickness, and the planarization layer located in the second support region has a second sub-thickness. The first sub-thickness and the second sub-thickness are different. And / or, the driving circuit layer located in the first support region has a third sub-thickness, and the driving circuit layer located in the second support region has a fourth sub-thickness. The third sub-thickness and the fourth sub-thickness are different.

34. The display panel according to claim 33, characterized in that, The second sub-thickness is greater than the first sub-thickness, and / or the fourth sub-thickness is greater than the third sub-thickness.

35. The display panel according to claim 33, characterized in that, The driving circuit layer includes a conductive structure and an insulating layer. At least one insulating layer located in the first support region has a fifth sub-thickness, and at least one insulating layer located in the second support region has a sixth sub-thickness. The fifth sub-thickness and the sixth sub-thickness are different.

36. The display panel according to claim 35, characterized in that, The thickness of the sixth sub-sub is greater than the thickness of the fifth sub-sub-sub.

37. The display panel according to claim 35, characterized in that, The conductive structure includes at least one of a transistor, a storage capacitor, and a signal trace.

38. The display panel according to claim 37, characterized in that, The storage capacitor includes a first electrode plate and a second electrode plate located on the side of the first electrode plate near the planarization layer. The insulating layer includes a first insulating layer, a second insulating layer, and a third insulating layer, which are stacked sequentially in the direction near the planarization layer. The first electrode plate is disposed on the side of the first insulating layer away from the second insulating layer, and the second electrode plate is disposed between the first insulating layer and the second insulating layer. The third insulating layer located in the first support region has the fifth sub-thickness, and the third insulating layer located in the second support region has the sixth sub-thickness.

39. The display panel according to claim 38, characterized in that, The transistor includes a source, a drain, and a gate. The gate is disposed on the side of the first insulating layer away from the second insulating layer, and the source and drain are disposed on the side of the third insulating layer away from the second insulating layer.

40. The display panel according to any one of claims 26 to 39, characterized in that, The second touch portion protrudes from the first touch portion toward the isolation structure.

41. The display panel according to any one of claims 26 to 39, characterized in that, The touch electrode also includes a third touch portion disposed in the same layer and material as the conductive portion.

42. The display panel according to claim 41, characterized in that, The third touch unit protrudes from the first touch unit toward the isolation structure.

43. The display panel according to any one of claims 26 to 39, characterized in that, In a direction away from the substrate, the light-emitting device includes a first electrode, a light-emitting unit, and a second electrode stacked sequentially. The material of the isolation structure includes a conductive material, and the second electrode is connected to the isolation structure.

44. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 43.

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