Display panel and display device

Abstract

The invention relates to the technical field of optical display, in particular to a display panel and a display device. The height of the filling part is greater than or equal to that of the first eave layer facing the surface of the substrate; and / or, in the height direction, the height of the filling part is larger than or equal to the height, facing the surface of the substrate, of the second eave layer, so that the gap between the first isolation structure and the second isolation structure is filled, and the touch layer is arranged on the outer side of the first eave layer, the side, away from the substrate, of the filling part and the outer side of the second eave layer; the width of the first eave layer in the width direction is larger than that of the first main body layer, and the width of the second eave layer in the width direction is larger than that of the second main body layer. Compared with the mode that the touch layer is arranged on the outer side of the first eave layer, the outer side of the first main body layer, the outer side of the second main body layer and the outer side of the second eave layer, the film forming offset of the touch layer can be reduced, and the eave layers are arranged more smoothly.

Description

Technical Field

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

[0002] As end-user demands continue to increase, so too are the requirements for display technology. To meet this growing demand, popular technologies such as TOE (Touch Panel on Encapsulation), COE (Color Filter on Encapsulation), MLA (Micro Lens Array) integration, Eleap (Lithography with maskless deposition), and narrow-frame technologies have emerged in recent years. Consequently, the reliability of display panel packaging has become increasingly important, leading to the emergence of the IJP (Inkjet Printing) leveling process for encapsulating display panels. However, in practice, IJP generally only encapsulates the display area of ​​the display panel, resulting in a large film gap between the display and non-display areas of the subsequently deposited TP (touch screen) layer, which can even pose a risk of breakage. Summary of the Invention

[0003] The purpose of this application is to provide a display panel and a display device.

[0004] The present application provides a display panel, comprising: a substrate, the substrate forming a display area and a non-display area; a pixel definition layer, the pixel definition layer being spaced apart on the substrate to form a pixel opening; sub-pixels, the sub-pixels being spaced apart from the pixel opening in the display area; an isolation structure, the isolation structure comprising a first isolation structure and a second isolation structure spaced apart, the first isolation structure being located in the display area, the first isolation structure being located radially outward of the sub-pixel, the first isolation structure comprising a first main layer and a first eaves layer, the width of the first eaves layer being greater than the width of the first main layer in the width direction; the second isolation structure being located in the non-display area, the second isolation structure being located radially outward of the sub-pixel Radially outside the display area, the second isolation structure includes a second main body layer and a second eaves layer, and the width of the second eaves layer is greater than the width of the second main body layer in the width direction; a filling part, the filling part is at least arranged at the interval between the first isolation structure and the second isolation structure; in the height direction, the height of the filling part is greater than or equal to the height of the first eaves layer toward the surface of the substrate; and / or, in the height direction, the height of the filling part is greater than or equal to the height of the second eaves layer toward the surface of the substrate; a touch layer, the touch layer is arranged on the outside of the first eaves layer, and extends to the outside of the second eaves layer through the side of the filling part away from the substrate.

[0005] In an exemplary embodiment of the present application, the display panel further includes: a first encapsulation layer, which is arranged on the side of the sub-pixel facing away from the substrate, and extends to the outside of the second eaves layer via the outside of the first main layer, the outside of the first eaves layer, the gap between the first isolation structure and the second isolation structure, and the outside of the second main layer; a second encapsulation layer, which is arranged on the side of the first encapsulation layer facing away from the sub-pixel, and in the height direction, the height of the second encapsulation layer is greater than or equal to the height of the surface of the first eaves layer facing the substrate; wherein, the touch layer is arranged on the side of the second encapsulation layer facing away from the first encapsulation layer, and extends to the outside of the second eaves layer via the outside of the first eaves layer and the side of the filling part facing away from the substrate.

[0006] In an exemplary embodiment of the present application, the display panel further includes an isolation layer, and in the display area, the isolation layer is arranged between the second encapsulation layer and the touch layer, and the isolation layer includes a cathode patterned material; the filling portion includes a metal material, and when the filling portion is formed, the isolation layer located in the display area can reduce the adhesion ability of the filling material in the display area.

[0007] In an exemplary embodiment of the present application, on the first isolation structure, the isolation layer is provided on the side of the first eaves layer facing away from the first main layer; on the second isolation structure, the isolation layer is provided on the side of the second eaves layer facing away from the second main layer; when forming the filling part, the isolation layers located in the first isolation structure and the second isolation structure can reduce the adhesion ability of the filling material in the display area.

[0008] In an exemplary embodiment of the present application, in the non-display area, part of the isolation layer is arranged at the gap between the first isolation structure and the second isolation structure, and the filling groove is formed after removing part of the isolation layer at the gap through an etching process, and the filling groove is provided with the filling part.

[0009] In an exemplary embodiment of the present application, part of the filling portion is arranged at the gap between the first isolation structure and the second isolation structure; the second isolation structure forms a step surface with the substrate on a side facing away from the first isolation structure, and part of the filling portion is arranged on the step surface.

[0010] In an exemplary embodiment of the present application, on the step surface, in a height direction, a height of a portion of the filling portion gradually decreases from a side close to the second isolation structure to a side away from the second isolation structure.

[0011] In an exemplary embodiment of the present application, the display panel further includes a third encapsulation layer, which is disposed between the second encapsulation layer and the isolation layer. The isolation layer is formed on the third encapsulation layer, and the filling portion is formed in the non-display area.

[0012] In an exemplary embodiment of the present application, the first encapsulation layer and the third encapsulation layer both include inorganic encapsulation materials, and the second encapsulation layer includes organic encapsulation materials.

[0013] The present application also provides a display device, comprising the display panel.

[0014] A display panel and a display device according to the present application have the following beneficial effects: a first isolation structure is provided on the radially outer side of the sub-pixel, and a second isolation structure is provided on the radially outer side of the display area, thereby achieving isolation between the display area and the non-reality area display area through the first isolation structure, and further achieving isolation between the display area and the outside world through the second isolation structure in the non-display area, thereby effectively preventing water vapor from invading after the display panel is packaged, and improving the stability of the display panel. A filling portion is provided at least at the interval between the first isolation structure and the second isolation structure, and the height of the filling portion is greater than or equal to the height of the first eaves layer facing the substrate surface; and / or, in the height direction, the height of the filling portion is greater than or equal to the height of the second eaves layer facing the substrate surface, thereby filling the interval between the first isolation structure and the second isolation structure, and after filling, the filling portion can be at least flush with the surface of the first eaves layer facing the substrate, or the filling portion can be at least flush with the surface of the second eaves layer facing the substrate. The touch layer is arranged on the outside of the first eaves layer, the side of the filling part away from the substrate, and the outside of the second eaves layer. Since the width of the first eaves layer is greater than the width of the first main layer in the width direction, and the width of the second eaves layer is greater than the width of the second main layer in the width direction, this design can reduce the film formation difference of the touch layer compared to when the touch layer is arranged on the outside of the first eaves layer, the outside of the first main layer, the outside of the second main layer, and the outside of the second eaves layer, making the eaves layer more smoothly arranged and reducing the risk of breakage of the touch layer.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by practice of the present application.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 is a schematic diagram of the structure of a display panel in an embodiment of the present invention;

[0019] Figure 2 This is a first structural diagram of a display panel manufacturing process according to an embodiment of the present invention;

[0020] Figure 3This is a second structural diagram of a display panel manufacturing process according to an embodiment of the present invention;

[0021] Figure 4 is a third structural schematic diagram of a display panel manufacturing process according to an embodiment of the present invention;

[0022] Figure 5 This is a fourth structural diagram of a display panel manufacturing process according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 10. Substrate; 11. Display area; 12. Non-display area; 20. Pixel definition layer; 21. Pixel opening; 30. Sub-pixel; 40. Isolation structure; 41. First isolation structure; 411. First main layer; 412. First eaves layer; 42. Second isolation structure; 421. Second main layer; 422. Second eaves layer; 43. Filling groove; 50. Filling part; 60. Touch layer; 71. First encapsulation layer; 72. Second encapsulation layer; 73. Third encapsulation layer; 80. Isolation layer; 90. Step surface. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art.

[0026] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of the embodiments of the present application. However, it will be appreciated by those skilled in the art that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps etc. can be adopted. In other cases, known methods, devices, implementations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0027] The present application is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0028] It should be noted that the term "plurality" used in this document refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0029] As end-user demands continue to increase, so too do the requirements for display technology. To meet these growing needs, popular technologies such as TOE, COE, MLA integration, Eleap, and narrow-bezel technology have emerged in recent years. Consequently, the reliability of display panel packaging has become increasingly important, and the IJP leveling process has emerged for packaging display panels. However, in actual production, IJP typically only encapsulates the display area 11 of the display panel, resulting in a large gap between the display area 11 and the non-display area 12 of the subsequently deposited TP layer, potentially creating a risk of breakage.

[0030] In order to solve the above technical problems, the present application provides a display panel, referring to Figure 1 As shown, it includes a substrate 10, a pixel definition layer 20, a sub-pixel 30, an isolation structure 40, a filling portion 50, and a touch layer 60. The substrate 10 forms a display area 11 and a non-display area 12; the pixel definition layer 20 is spaced apart from the substrate 10 to form a pixel opening 21; the sub-pixel 30 is arranged at the pixel opening 21 in the display area 11; the isolation structure 40 includes a first isolation structure 41 and a second isolation structure 42 spaced apart, the first isolation structure 41 is located in the display area 11, and the first isolation structure 41 is arranged radially outward of the sub-pixel 30, the first isolation structure 41 includes a first main layer 411 and a first eaves layer 412, and the width of the first eaves layer 412 in the width direction is greater than the width of the first main layer 411; the second isolation structure 42 is located in the non-display area 12, and the second isolation structure 42 is arranged radially outward of the display area 11. On the outside, the second isolation structure 42 includes a second main layer 421 and a second eaves layer 422, and the width of the second eaves layer 422 in the width direction is greater than the width of the second main layer 421; the filling portion 50 is at least arranged at the interval between the first isolation structure 41 and the second isolation structure 42, and the height of the filling portion 50 is greater than or equal to the height of the first eaves layer 412 toward the surface of the substrate 10; and / or, in the height direction, the height of the filling portion 50 is greater than or equal to the height of the second eaves layer 422 toward the surface of the substrate 10; the touch layer 60 is arranged on the outside of the first eaves layer 412, and extends to the outside of the second eaves layer 422 through the side of the filling portion 50 away from the substrate 10.

[0031] Reference Figure 1As shown, by arranging the first isolation structure 41 radially outward of the sub-pixel 30 and the second isolation structure 42 radially outward of the display area 11, the first isolation structure 41 is used to isolate the display area 11 from the non-display area 11, and the second isolation structure 42 is used to further isolate the display area 11 from the outside world in the non-display area 12, thereby effectively preventing water vapor from invading after the display panel is packaged, thereby improving the stability of the display panel. A filling portion 50 is provided at least in the gap between the first isolation structure 41 and the second isolation structure 42, and the height of the filling portion 50 is greater than or equal to the height of the first eaves layer 412 facing the surface of the substrate 10; and / or, in the height direction, the height of the filling portion 50 is greater than or equal to the height of the second eaves layer 422 facing the surface of the substrate 10, thereby filling the gap between the first isolation structure 41 and the second isolation structure 42. After filling, the filling portion 50 can be at least flush with the surface of the first eaves layer 412 facing the substrate 10, or the filling portion 50 can be at least flush with the surface of the second eaves layer 422 facing the substrate 10. The touch layer 60 is arranged on the outside of the first eaves layer 412, on the side of the filling portion 50 away from the substrate 10, and on the outside of the second eaves layer 422. Since the width of the first eaves layer 412 is greater than the width of the first main layer 411 in the width direction, and the width of the second eaves layer 422 is greater than the width of the second main layer 421 in the width direction, this design can reduce the film formation difference of the touch layer 60 compared to when the touch layer 60 is arranged on the outside of the first eaves layer 412, the outside of the first main layer 411, the outside of the second main layer 421, and the outside of the second eaves layer 422, making the connection between the eaves layers smoother and reducing the risk of breakage of the touch layer 60.

[0032] In some embodiments, the substrate 10 includes a substrate and a driving circuit. The substrate can be a glass substrate or an organic substrate. The driving circuit can be a thin film transistor (TFT) circuit layer, and the TFT circuit layer is used to drive the light-emitting layer of the OLED. The specific TFT circuit layer includes a plurality of driving circuit units arranged in an array, and each driving circuit unit may include a TFT device and a capacitor. Each driving circuit unit corresponds to an anode and an organic light-emitting layer. The TFT device is a low temperature polysilicon (LTPS) type or a metal oxide semiconductor (MOS) type, such as a metal oxide semiconductor type of indium gallium zinc oxide (IGZO).

[0033] In some embodiments, the material of the pixel definition layer 20 can be an organic material, an organic material with an inorganic coating layer disposed thereon, or an inorganic material. The organic material of the pixel definition layer 20 includes, but is not limited to, polyimide. The material of the pixel definition layer 20 can be an inorganic material. The inorganic material of the pixel definition layer 20 includes, but is not limited to, silicon oxide (SiO2), silicon nitride (Si3N4), silicon oxynitride (Si3N4O), magnesium fluoride (MgF2), or a combination thereof.

[0034] In some embodiments, sub-pixels 30 are configured to emit light of different colors, and multiple sub-pixels 30 emit light to display an image. Each pixel unit is composed of a superposition of red, green, and blue sub-pixels 30 to display a white image. Different color images can be displayed by controlling the light emission levels of different color sub-pixels 30.

[0035] In some embodiments, reference Figure 1 As shown, there are multiple first isolation structures 41, which are correspondingly arranged in the display area 11 and the pixel definition layer 20, and there is a gap between adjacent first isolation structures 41 to accommodate the sub-pixels 30. In order to illustrate the packaging structure of the display area 11 and the non-display area 12 in the figure, only the portion of the first isolation structure 41 closest to the non-display area 12 is shown. The second isolation structure 42 surrounds the radial outside of the display area 11 and is spaced apart from the first isolation structure 41 to form a spacing groove. It is understood that multiple second isolation structures 42 can be provided, and multiple second isolation structures 42 can be spaced apart to form multiple filling grooves 43 for arranging the filling portion 50.

[0036] In some embodiments, reference Figure 1 As shown, the first main body layer 411 and the second main body layer 421 have the same height, and the first eaves layer 412 and the second eaves layer 422 have the same height. In the width direction, the width of the first eaves layer 412 gradually decreases from the side close to the first main body layer 411 to the side away from the first main body layer 411, and the width of the second eaves layer 422 gradually decreases from the side close to the second main body layer 421 to the side away from the second main body layer 421. The first eaves layer 412 can play a shielding role when evaporating the sub-pixel 30 material to form an evaporation angle. Correspondingly, there is also a step difference between the first eaves layer 412 and the first main body layer 411, and between the second eaves layer 422 and the second main body layer 421. Such a step difference increases the difficulty of film formation. The main purpose of this application is to eliminate the above-mentioned step difference.

[0037] In one embodiment, the material of the filling portion 50 may include magnesium (Mg), silver (Ag), aluminum (Al), lithium (Li), calcium (Ca), indium (In), or at least one of magnesium-silver alloy (Mg:Ag) and lithium-aluminum alloy (Li:Al), and the specific selection can be made according to actual preparation requirements.

[0038] In some embodiments, reference Figure 1 As shown, the filling portion 50 is provided at the gap between the first isolation structure 41 and the second isolation structure 42; or the filling portion 50 is provided at the gap between the first isolation structure 41 and the second isolation structure 42 and on the substrate 10 where the first isolation structure 41 is away from the second isolation structure 42, and is specifically provided according to actual conditions.

[0039] Reference Figure 1 As shown, specifically, a partial filling portion 50 is provided in the gap between the first isolation structure 41 and the second isolation structure 42; the side of the second isolation structure 42 facing away from the first isolation structure 41 forms a step surface 90 with the substrate 10, and the partial filling portion 50 is provided on the step surface 90. To eliminate the step difference between the first eaves layer 412 and the first main layer 411, and between the second eaves layer 422 and the second main layer 421, the height of the filling portion 50 in the gap between the first isolation structure 41 and the second isolation structure 42 is set to be greater than or equal to the height of the first eaves layer 412 facing the surface of the substrate 10. At the step surface 90, in the height direction, the height of the filling portion 50 is greater than or equal to the height of the second eaves layer 422 facing the surface of the substrate 10, and the height of the partial filling portion 50 located on the step surface 90 gradually decreases from the side closest to the second isolation structure 42 to the side away from the second isolation structure 42. Because the second isolation structure 42 is present on one side of the step surface 90 and the other side is open, the filling portion 50 is formed so that one side is higher than the other. Such a design also effectively eliminates the step difference between the first eaves layer 412 and the second main body layer 421 because the filling height gradually decreases.

[0040] In some embodiments, the touch layer 60 is used to receive external touch information and transmit the signal to the controller. The touch layer 60 extends beyond the non-display area 12 and then continues to extend outside the display panel to connect to the controller outside the display panel. In this application, since the filling portion 50 is formed between the first isolation structure 41 and the second isolation structure 42 and on the stepped surface 90 of the second isolation structure 42 away from the first isolation structure 41, the touch layer 60 eliminates the step difference during the extension process, and has better continuity.

[0041] In some embodiments, reference Figure 1As shown, the display panel also includes a first encapsulation layer 71. The first encapsulation layer 71 is provided on the side of the sub-pixel 30 facing away from the substrate 10, extending through the outside of the first main layer 411, the outside of the first eaves layer 412, the gap between the first isolation structure 41 and the second isolation structure 42, the outside of the second main layer 421, and the outside of the second eaves layer 422. The first encapsulation layer 71 comprises an inorganic material and encapsulates the display area 11 on the side of the sub-pixel 30 facing away from the substrate 10, on the outside of the first main layer 411, and on the outside of the first eaves layer 412. The first encapsulation layer 71, in the gap between the first isolation structure 41 and the second isolation structure 42, on the outside of the second main layer 421, and on the outside of the second eaves layer 422, not only encapsulates the non-display area 12 but also provides insulation between the filling portion 50 and the first isolation structure 41, and between the filling portion 50 and the second isolation structure 42.

[0042] In some embodiments, reference Figure 1 As shown, the display panel also includes a second encapsulation layer 72, which is disposed on the side of the first encapsulation layer 71 facing away from the sub-pixel 30. In the height direction, the height of the second encapsulation layer 72 is greater than or equal to the height of the surface of the first eaves layer 412 facing the substrate 10. The second encapsulation layer 72 includes an organic material and is formed on the side of the first encapsulation layer 71 facing away from the sub-pixel 30 using a self-leveling process. For example, the height of the second encapsulation layer 72 is greater than the height between the surface of the first eaves layer 412 facing the sub-pixel 30 and the surface of the sub-pixel 30 facing the first eaves layer 412, and the surface of the second encapsulation layer 72 facing away from the first encapsulation layer 71 is flush with the top surface of the first eaves layer 412.

[0043] In some embodiments, reference Figure 1 As shown, the touch layer 60 is disposed on the side of the second encapsulation layer 72 facing away from the first encapsulation layer 71, extending through the outer side of the first eaves layer 412 and the side of the filling portion 50 facing away from the substrate 10 to the outer side of the second eaves layer 422. In the display area 11, the design of the first and second encapsulation layers 71, 72 reduces the step difference between the first eaves layer 412 and the first main body layer 411. Even by aligning the surface of the second encapsulation layer 72 facing away from the first encapsulation layer 71 with the top surface of the first eaves layer 412, the step difference between the first eaves layer 412 and the first main body layer 411 is eliminated. This enhances the continuity of the touch layer 60 in the display area 11, further reducing the risk of breakage of the touch layer 60.

[0044] In some embodiments, reference Figure 1As shown, the display panel further includes a third encapsulation layer 73, which is disposed between the second encapsulation layer 72 and the isolation layer 80. The isolation layer 80 is formed on the third encapsulation layer 73, and the filling portion 50 is formed in the non-display area 12. The third encapsulation layer 73 is an inorganic encapsulation layer that can further enhance the encapsulation effect and reduce the risk of water vapor intrusion. It can also reduce the adhesion of the filling material to the display area 11.

[0045] In some embodiments, reference Figure 1 As shown, the display panel also includes an isolation layer 80. In the display area 11, the isolation layer 80 is located between the second encapsulation layer 72 and the touch layer 60. The isolation layer 80 includes a cathode patterned material (i.e., a CPM material). The filling portion 50 includes a metal material. When forming the filling portion 50, the isolation layer 80 located in the display area 11 can reduce the adhesion of the filling material to the display area 11. Therefore, the filling material of the isolation layer includes a fluorine-containing organic material, such as a substituted fluorinated cyclotriphosphazene compound. The filling material can be deposited on the second encapsulation layer 72 by low-temperature vacuum evaporation to form the above-mentioned isolation layer 80. In other embodiments, the filling material may not be a fluorine-containing organic material, as long as the filling material and the metal material are incompatible and repel each other. The material of the filling portion 50 may include a metal material. The film layer formed by the filling material and the metal material repel each other, and the above-mentioned isolation layer 80 is formed by utilizing this characteristic of the filling material to prevent the material of the filling portion 50 from being deposited on the display area 11, so that the material of the filling portion 50 does not adhere to the display area 11.

[0046] In some embodiments, on the first isolation structure 41, an isolation layer 80 is provided on the side of the first eaves layer 412 facing away from the first main layer 411; on the second isolation structure 42, an isolation layer 80 is provided on the side of the second eaves layer 422 facing away from the second main layer 421; when forming the filling portion 50, the isolation layer 80 located in the first isolation structure 41 and the second isolation structure 42 can reduce the adhesion of the filling material in the display area 11. Specifically, the isolation layer 80 is formed in both the display area 11 and the non-display area 12. In the non-display area 12, it is mainly formed on the side of the first eaves layer 412 facing away from the first main layer 411 and the side of the second eaves layer 422 facing away from the second main layer 421, so that the isolation layer 80 located in the first isolation structure 41 and the second isolation structure 42 can reduce the adhesion of the filling material in the display area 11.

[0047] In some embodiments, reference Figure 2As shown, in the non-display area 12, part of the isolation layer 80 is provided at the gap between the first isolation structure 41 and the second isolation structure 42. After the part of the isolation layer 80 at the gap is removed by an etching process, a filling groove 43 is formed. The filling groove 43 is provided with a filling portion 50. When forming the isolation layer 80, since the material of the isolation layer 80 will be deposited simultaneously in the display area 11 and the non-display area 12, the isolation layer 80 will also be partially formed between the first isolation structure 41 and the second isolation structure 42 in the non-display area under the shielding effect of the first eaves layer 412 and the second eaves layer 422. Since the isolation layer 80 has anti-adhesion properties, if the filling portion 50 is deposited directly on the isolation layer 80, the adhesion performance of the filling portion 50 may be reduced. Therefore, it is necessary to first remove the isolation layer 80 between the first isolation structure 41 and the second isolation structure 42 before depositing the filling portion 50.

[0048] In some embodiments, the isolation layer 80 between the first isolation structure 41 and the second isolation structure 42 in the non-display area 12 can be etched away by laser etching. The laser etching can be performed from top to bottom or from bottom to top. The isolation layer 80 can also be deposited using fine mask technology without the need for an additional laser etching process.

[0049] In some embodiments, a method for manufacturing a display panel includes:

[0050] Step S10, refer to Figure 2 As shown, a pixel definition layer 20 is formed on a substrate 10 , a display area 11 and a non-display area 12 are formed on the substrate 10 , and the pixel definition layer 20 is spaced apart from the substrate 10 to form a pixel opening 21 ;

[0051] Step S20, refer to Figure 2 As shown, a sub-pixel 30 is formed in the pixel opening 21;

[0052] Step S30, refer to Figure 2 As shown, an isolation structure 40 is formed on the pixel definition layer 20, and the isolation structure 40 is located between adjacent sub-pixels 30. The isolation structure 40 includes a first isolation structure 41 and a second isolation structure 42 that are spaced apart. The first isolation structure 41 is located in the display area 11 and is located in the pixel definition layer 20. The first isolation structure 41 is located radially outward of the sub-pixel 30. The first isolation structure 41 includes a first main layer 411 and a first eaves layer 412. The width of the first eaves layer 412 is greater than the width of the first main layer 411 in the width direction; the second isolation structure 42 is located in the non-display area 12. The second isolation structure 42 is located radially outward of the display area 11. The second isolation structure 42 includes a second main layer 421 and a second eaves layer 422. The width of the second eaves layer 422 is greater than the width of the second main layer 421 in the width direction.

[0053] Step S40, refer to Figure 2 As shown, a first encapsulation layer 71 is formed on the side of the sub-pixel 30 facing away from the substrate 10, extending through the outer side of the first main layer 411, the outer side of the first eaves layer 412, the gap between the first isolation structure 41 and the second isolation structure 42, the outer side of the second main layer 421 to the outer side of the second eaves layer 422;

[0054] Step S50, refer to Figure 2 As shown, a second encapsulation layer 72 is formed on one side of the first encapsulation layer 71 behind the sub-pixel 30. In the height direction, the height of the second encapsulation layer 72 is greater than or equal to the height between the surface of the first eaves layer 412 facing the sub-pixel 30 and the surface of the sub-pixel 30 facing the first eaves layer 412.

[0055] Step S50, refer to Figure 2 As shown, an isolation layer 80 is formed on the side of the second encapsulation layer 72 away from the first encapsulation layer 71, and the isolation layer 80 includes a cathode patterned material; in the display area 11, a portion of the isolation layer 80 is provided between the second encapsulation layer 72 and the touch layer 60; Figure 3 As shown, part of the isolation layer 80 in the non-display area 12 is provided at the interval between the first isolation structure 41 and the second isolation structure 42, and the isolation layer 80 at the interval between the first isolation structure 41 and the second isolation structure 42 is removed by an etching process;

[0056] Step S60, refer to Figure 4 As shown, a filling portion 50 is formed at least at the interval between the first isolation structure 41 and the second isolation structure 42. In the height direction, the height of the filling portion 50 is greater than or equal to the height of the first eaves layer 412 facing the surface of the substrate 10; and / or, in the height direction, the height of the filling portion 50 is greater than or equal to the height of the second eaves layer 422 facing the surface of the substrate 10.

[0057] Step S70, refer to Figure 5 As shown, a third encapsulation layer 73 is formed between the isolation layer 80 and the second encapsulation layer 72.

[0058] Step S80, refer to Figure 5 As shown, a touch layer 60 is formed on the side of the isolation layer 80 away from the third encapsulation layer 73 . The touch layer 60 is disposed outside the first eaves layer 412 and extends to the outside of the second eaves layer 422 via the side of the filling portion 50 away from the substrate 10 .

[0059] In the present application, a filling portion 50 is provided between the first isolation structure 41 and the second isolation structure 42 in the non-display area 12, and a second encapsulation layer 72 is provided in the display area 11 to reduce the gap between the first eaves layer 412 and the first main layer 411, and between the second eaves layer 422 and the second main layer 421, thereby forming a touch layer 60 with greater continuity and reducing the risk of breakage of the touch layer 60.

[0060] The present application also provides a display device, comprising the above-mentioned display panel.

[0061] In this application, unless otherwise specified or limited, the terms "disposed (provided with)" and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two elements, or interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0062] In the description of this specification, the description of reference terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0063] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent application.

Claims

1. A display panel, characterized in that: include: a substrate, wherein the substrate forms a display area and a non-display area; A pixel definition layer, the pixel definition layer is spaced apart from the substrate to form a pixel opening; a sub-pixel, wherein the sub-pixel is disposed in the pixel opening in the display area; an isolation structure, the isolation structure comprising a first isolation structure and a second isolation structure arranged at intervals, the first isolation structure being located in the display area and disposed radially outward of the sub-pixel, the first isolation structure comprising a first main body layer and a first eaves layer, the width of the first eaves layer being greater than the width of the first main body layer in the width direction; the second isolation structure being located in the non-display area and disposed radially outward of the display area, the second isolation structure comprising a second main body layer and a second eaves layer, the width of the second eaves layer being greater than the width of the second main body layer in the width direction; a filling portion, the filling portion being provided at least at the interval between the first isolation structure and the second isolation structure; in the height direction, the height of the filling portion being greater than or equal to the height of the first eaves layer toward the surface of the substrate; and / or, in the height direction, the height of the filling portion being greater than or equal to the height of the second eaves layer toward the surface of the substrate; A touch layer is provided on the outer side of the first eaves layer and extends to the outer side of the second eaves layer via a side of the filling portion away from the substrate.

2. The display panel according to claim 1, wherein: The display panel further includes: a first encapsulation layer, the first encapsulation layer being provided on a side of the sub-pixel facing away from the substrate, and extending through an outer side of the first main layer, an outer side of the first eaves layer, a gap between the first isolation structure and the second isolation structure, and an outer side of the second main layer to an outer side of the second eaves layer; a second encapsulation layer, the second encapsulation layer being provided on a side of the first encapsulation layer away from the sub-pixel, wherein in a height direction, the height of the second encapsulation layer is greater than or equal to the height of a surface of the first eaves layer facing the substrate; The touch layer is provided on a side of the second encapsulation layer away from the first encapsulation layer, and extends to the outside of the second eaves layer via the outside of the first eaves layer and the side of the filling portion away from the substrate.

3. The display panel according to claim 2, wherein: The display panel further includes an isolation layer, wherein the isolation layer is provided between the second encapsulation layer and the touch layer in the display area, and the isolation layer includes a cathode patterned material; The filling portion includes a metal material. When the filling portion is formed, the isolation layer located in the display area can reduce the adhesion of the filling material in the display area.

4. The display panel according to claim 3, wherein: On the first isolation structure, the isolation layer is provided on the side of the first eaves layer facing away from the first main layer; on the second isolation structure, the isolation layer is provided on the side of the second eaves layer facing away from the second main layer; when forming the filling part, the isolation layers located in the first isolation structure and the second isolation structure can reduce the adhesion ability of the filling material in the display area.

5. The display panel according to claim 3, wherein: In the non-display area, part of the isolation layer is provided at the gap between the first isolation structure and the second isolation structure, and the filling groove is formed after removing part of the isolation layer at the gap through an etching process. The filling groove is provided with the filling portion.

6. The display panel according to claim 1, wherein: Part of the filling portion is provided at the interval between the first isolation structure and the second isolation structure; A side of the second isolation structure facing away from the first isolation structure forms a step surface with the substrate, and a portion of the filling portion is disposed on the step surface.

7. The display panel according to claim 6, wherein: On the step surface, in a height direction, a height of a portion of the filling portion gradually decreases from a side close to the second isolation structure to a side away from the second isolation structure.

8. The display panel according to claim 3, wherein: The display panel further includes a third encapsulation layer, which is disposed between the second encapsulation layer and the isolation layer. The isolation layer is formed on the third encapsulation layer, and the filling portion is formed in the non-display area.

9. The display panel according to claim 8, wherein: The first encapsulation layer and the third encapsulation layer both include inorganic encapsulation materials, and the second encapsulation layer includes organic encapsulation materials.

10. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 9.

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