Display panel, preparation method thereof and display device

Abstract

The application relates to a display panel, a preparation method thereof and a display device. The display panel comprises an array substrate and an isolation structure layer, the isolation structure layer is arranged on one side of the array substrate, the isolation structure layer comprises isolation structures, and at least part of the isolation structures are provided with isolation structures; a touch electrode is arranged on one side of the array substrate and located in an isolation gap; and a shielding structure layer is at least partially located between the isolation structures and the touch electrode. In the working process of the display panel, the shielding structure layer can shield the electrical signal noise of the isolation structures, the interference of the electrical signal noise on the touch electrode is reduced, the external interference on the touch signal transmitted in the touch electrode is reduced, the touch signal distortion is reduced, the signal-to-noise ratio of the touch signal is improved, and the touch performance of the display panel is improved.

Description

Technical Field

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

[0002] As the industry's demands for display panel functionality increase, the integration of touch structures into display panels to achieve touch display, namely In-Cell touch panels, has gradually developed. These display panels have advantages such as low manufacturing cost and thinness, which has led to their increasing adoption.

[0003] In related technologies, touch panel (TP) traces are designed within In-Cell type touch panels to achieve touch functionality. However, this type of display panel suffers from poor touch performance during operation. Summary of the Invention

[0004] Therefore, it is necessary to provide a display panel and its manufacturing method, as well as a display device, that can improve touch performance in response to the above-mentioned technical problems.

[0005] In a first aspect, embodiments of this application provide a display panel, including:

[0006] Array substrate;

[0007] An isolation structure layer is disposed on one side of the array substrate. The isolation structure layer includes isolation structures, and at least some of the isolation structures are provided with isolation gaps.

[0008] The touch electrode is located on one side of the array substrate and within the isolation gap;

[0009] A shielding structure layer is located, at least partially, between the isolation structure and the touch electrode.

[0010] In one embodiment, the shielding structure layer includes a first shielding portion that covers at least a portion of the surface of the touch electrode facing the isolation structure side.

[0011] In one embodiment, the first shielding portion includes a first body portion that covers at least a portion of the sidewall of the touch electrode;

[0012] Optionally, the first shielding portion further includes a first extension portion connected to the first main body portion. The first extension portion is located on the side of the touch electrode away from the array substrate, and the surface of the first extension portion near the array substrate is spaced apart from the surface of the touch electrode away from the array substrate.

[0013] In one embodiment, the first shielding portion further includes a second extension connected to the first main body portion. The second extension is connected to one end of the first main body portion near the array substrate, and the side surface of the second extension near the array substrate is spaced apart from the side surface of the array substrate near the second extension.

[0014] In one embodiment, the shielding structure layer includes a second shielding portion that covers at least a portion of the surface of the isolation structure facing the touch electrode.

[0015] In one embodiment, the orthographic projection size of the second shielding portion on the array substrate is different from the orthographic projection size of the first shielding portion in the shielding structure layer on the array substrate.

[0016] In one embodiment, the orthographic projection size of the second shielding portion on the array substrate is smaller than the orthographic projection size of the first shielding portion on the array substrate.

[0017] In one embodiment, the second shielding portion includes a second body portion that covers at least a portion of the sidewall of the isolation structure.

[0018] In one embodiment, the second shielding portion further includes a third extension connected to the second main body portion. The third extension is located on the side of the isolation structure away from the array substrate, and the surface of the third extension near the array substrate is spaced apart from the surface of the isolation structure away from the array substrate.

[0019] In one embodiment, one end of the second main body facing the array substrate is spaced apart from the side surface of the isolation structure near the array substrate.

[0020] In one embodiment, the isolation structure includes a first isolation layer and a second isolation layer, the first isolation layer being disposed on the side of the second isolation layer facing the array substrate; the orthographic projection of the first isolation layer on the array substrate is located within the orthographic projection of the second isolation layer on the array substrate.

[0021] In one embodiment, the first insulating layer is made of titanium or molybdenum; the second insulating layer is made of aluminum, silver or copper.

[0022] In one embodiment, the touch electrode includes a first electrode layer and a second electrode layer, the first electrode layer being disposed on the side of the second electrode layer facing the array substrate; the orthographic projection of the first electrode layer on the array substrate is located within the orthographic projection of the second electrode layer on the array substrate.

[0023] In one embodiment, the first isolation layer and the first electrode layer are disposed in the same layer and made of the same material.

[0024] In one embodiment, the second isolation layer and the second electrode layer are disposed in the same layer and made of the same material.

[0025] In one embodiment, the isolation structure further includes a third isolation layer disposed on the side of the first isolation layer facing the array substrate; the orthographic projection of the first isolation layer on the array substrate is located within the orthographic projection of the third isolation layer on the array substrate.

[0026] In one embodiment, the material of the third insulating layer includes titanium or molybdenum.

[0027] In one embodiment, the touch electrode further includes a third electrode layer disposed on the side of the first electrode layer facing the array substrate; the orthographic projection of the first electrode layer on the array substrate is located within the orthographic projection of the third electrode layer on the array substrate.

[0028] In one embodiment, the third isolation layer and the third electrode layer are disposed in the same layer and made of the same material.

[0029] In one embodiment, the isolation structure encloses to form a plurality of isolation openings; the display panel also includes a plurality of light-emitting elements, which are disposed corresponding to the plurality of isolation openings, with at least a portion of the light-emitting elements disposed in the corresponding isolation openings.

[0030] Optionally, the light-emitting element includes a first electrode, a light-emitting functional part, and a second electrode stacked sequentially along the distance from the array substrate, with the second electrode electrically connected to the isolation structure.

[0031] In one embodiment, the display panel further includes a pixel defining layer; the isolation structure and the touch electrode are both located on the side of the pixel defining layer away from the array substrate;

[0032] The pixel limiting layer is provided with multiple pixel openings; the pixel openings are connected to the isolation openings, and multiple light-emitting elements are provided corresponding to the multiple pixel openings, with at least a portion of the light-emitting elements located within the corresponding pixel openings.

[0033] In one embodiment, the material of the shielding structure layer includes inorganic materials;

[0034] Optionally, the display panel further includes a packaging structure layer, which includes multiple packaging units, each corresponding to a multiple light-emitting element, and is located on the side of the multiple light-emitting elements away from the array substrate.

[0035] Optionally, the shielding structure layer and multiple encapsulation units are made of the same material and layer.

[0036] Secondly, this application provides a display panel, including:

[0037] Array substrate;

[0038] An isolation structure layer is disposed on one side of the array substrate. The isolation structure layer includes an isolation structure and a touch electrode, wherein the isolation structure and the touch electrode are spaced apart.

[0039] A shielding structure layer is located, at least partially, between the isolation structure and the touch electrode.

[0040] The shielding structure layer includes a first shielding portion that covers at least a portion of the surface of the touch electrode facing the isolation structure.

[0041] In one embodiment, the first shielding portion includes a first body portion that covers at least a portion of the sidewall of the touch electrode.

[0042] In one embodiment, the first shielding portion further includes a first extension connected to the first main body portion. The first extension is located on the side of the touch electrode away from the array substrate, and the surface of the first extension near the array substrate is spaced apart from the surface of the touch electrode away from the array substrate.

[0043] In one embodiment, the first shielding portion further includes a second extension connected to the first main body portion. The second extension is connected to one end of the first main body portion near the array substrate, and the side surface of the second extension near the array substrate is spaced apart from the side surface of the array substrate near the second extension.

[0044] In one embodiment, the shielding structure layer includes a second shielding portion that covers at least a portion of the surface of the isolation structure facing the touch electrode.

[0045] In one embodiment, the orthographic projection size of the second shielding portion on the array substrate is different from the orthographic projection size of the first shielding portion in the shielding structure layer on the array substrate.

[0046] In one embodiment, the orthographic projection size of the second shielding portion on the array substrate is smaller than the orthographic projection size of the first shielding portion on the array substrate.

[0047] In one embodiment, the second shielding portion includes a second body portion that covers at least a portion of the sidewall of the isolation structure.

[0048] In one embodiment, the second shielding portion further includes a third extension connected to the second main body portion. The third extension is located on the side of the isolation structure away from the array substrate, and the surface of the third extension near the array substrate is spaced apart from the surface of the isolation structure away from the array substrate.

[0049] In one embodiment, one end of the second main body facing the array substrate is spaced apart from the side surface of the isolation structure near the array substrate.

[0050] In one embodiment, at least some of the isolation structures are provided with an isolation gap, and the touch electrode is located within the isolation gap.

[0051] Thirdly, this application provides a method for manufacturing a display panel, comprising:

[0052] Provide array substrate;

[0053] An isolation structure and a touch electrode are formed on one side of the array substrate; at least some of the isolation structures are provided with an isolation gap, and the touch electrode is located within the isolation gap;

[0054] A partially shielding structure layer is formed between the isolation structure and the touch electrode.

[0055] In one embodiment, at least a partially shielding layer is formed between the isolation structure and the touch electrode, including:

[0056] A shielding structure layer is formed on at least a portion of the surface of the isolation structure facing the touch electrode and / or on at least a portion of the surface of the touch electrode facing the isolation structure.

[0057] In one embodiment, the material of the shielding structure layer includes inorganic materials;

[0058] In one embodiment, the isolation structure encloses a plurality of isolation openings; prior to the step of forming at least a partial shielding layer between the isolation structure and the touch electrode, the method further includes:

[0059] A light-emitting functional layer, a first electrode material layer, and an encapsulation material layer are formed on the entire side of the isolation structure and the touch electrode away from the array substrate.

[0060] The light-emitting functional layer, the first electrode material layer, and the encapsulation material layer are patterned to form a light-emitting element at the isolation opening, an encapsulation unit located on the side of the light-emitting element away from the array substrate, and a shielding structure layer.

[0061] Thirdly, embodiments of this application provide a display device, including a display panel as described in the first or second aspect above.

[0062] The aforementioned display panel, its manufacturing method, and display device include an array substrate and an isolation structure layer. The isolation structure layer is disposed on one side of the array substrate and includes isolation structures, with at least a portion of the isolation structures having an isolation gap. Touch electrodes are disposed on one side of the array substrate and located within the isolation gaps. A shielding structure layer is at least partially located between the isolation structures and the touch electrodes. During operation, the aforementioned display panel can partially shield the electrical signal noise of the isolation structures through the shielding structure layer, reducing interference from electrical signal noise to the touch electrodes. This reduces external interference to the touch signals transmitted in the touch electrodes, decreases touch signal distortion, and improves the signal-to-noise ratio of the touch signals. Based on this, the touch system in the display panel can more accurately identify and process touch signals, thereby improving the touch performance of the display panel. Simultaneously, the partial shielding structure layer can also reduce interference from electrical signal noise to the isolation structures, ensuring the signal transmission effect of the isolation structures, and thus improving the image display quality of the display panel. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology 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.

[0064] Figure 1 This is a cross-sectional structural diagram of a display panel in related technologies;

[0065] Figure 2 A cross-sectional structural diagram of a display panel provided in one embodiment;

[0066] Figure 3 This is a partial enlarged cross-sectional view of the display panel in one embodiment;

[0067] Figure 4 A cross-sectional structural schematic diagram of a display panel provided for another embodiment;

[0068] Figure 5 A cross-sectional schematic diagram of the isolation structure and touch electrode provided for another embodiment;

[0069] Figure 6 This is a partial enlarged cross-sectional view of the display panel in another embodiment;

[0070] Figure 7 This is a top view schematic diagram of the light-emitting elements, isolation structure, isolation gap and touch electrode in a display panel in one embodiment;

[0071] Figure 8This is a schematic flowchart of the steps in a method for manufacturing a display panel in one embodiment;

[0072] Figure 9 This is a partial enlarged cross-sectional view of the display panel in another embodiment;

[0073] Figure 10 This is a flowchart illustrating the steps of a method for manufacturing a display panel in another embodiment.

[0074] Explanation of reference numerals in the attached figures:

[0075] 1. Encapsulation layer; 2. Isolation pillar; 3. Touch screen trace; 10. Display panel; 11. Array substrate; 111. Substrate; 12. Isolation structure layer; 121. Isolation structure; 121a. First isolation layer; 121b. Second isolation layer; 121c. Third isolation layer; 122. Isolation gap; 13. Touch electrode; 131. First electrode layer; 132. Second electrode layer; 133. Third electrode layer; 14. Shielding structure layer; 141. First shielding portion; 141a, First main body portion; 141b, First extension portion; 141c, Second extension portion; 142, Second shielding portion; 142a, Second main body portion; 142b, Third extension portion; 123, Isolation opening; 15, Light-emitting element; 151, First electrode; 152, Light-emitting functional portion; 152a, Light-emitting layer; 152b, Functional layer; 153, Second electrode; 16, Pixel defining layer; 17, Planarization layer; 18, Encapsulation unit; 19, Evaporated film layer. Detailed Implementation

[0076] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0077] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0078] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more light-emitting units present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more light-emitting units present.

[0079] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0080] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0081] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0082] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0083] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0084] Organic light-emitting diode (OLED) display devices have been listed as a display technology with great development prospects due to their advantages such as being thin, light, wide viewing angle, active light emission, continuously adjustable emission color, low cost, fast response speed, low power consumption, low driving voltage, wide operating temperature range, simple manufacturing process, high luminous efficiency, and flexible display.

[0085] In OLED display technologies, the touch structure is integrated into the display panel to achieve touch display, also known as an In-Cell touch panel. This type of display panel has advantages such as low manufacturing cost and thinness, leading to its increasing adoption. To design In-Cell touch panels, related technologies include... Figure 1 As shown, the display panel includes an encapsulation layer 1 and an isolation layer. Isolation pillars 2 and isolation gaps are provided on the isolation layer, and touch screen traces (TP) 3 are provided in the isolation gaps to realize touch functionality. However, this type of display panel has the problem of poor touch performance during operation.

[0086] The applicant discovered through research that the above-mentioned problem is caused by the fact that the electrode noise has a significant impact during the operation of the display panel, and the noise cannot be completely filtered out during the later debugging stage, resulting in a low touch signal-to-noise ratio and poor touch performance of the display panel.

[0087] In view of this, embodiments of this application provide a display panel and its manufacturing method and display device. The display panel includes an array substrate and an isolation structure layer. The isolation structure layer is disposed on one side of the array substrate and includes an isolation structure and an isolation gap. The isolation structure is connected to a fixed potential. Touch electrodes are disposed on one side of the array substrate and located within the isolation gap. A shielding structure layer is at least partially located between the isolation structure and the touch electrodes. The display panel provided in this application has a partial shielding structure layer between the isolation structure and the touch electrodes. This allows the display panel to shield electrode noise during operation, reducing the interference of electrode noise on the touch electrodes. This reduces external interference to the touch signals transmitted in the touch electrodes (i.e., TP traces), reduces touch signal distortion, and improves the signal-to-noise ratio of the touch signals. Based on this, the touch system in the display panel can more accurately identify and process touch signals, thereby improving the touch performance of the display panel. At the same time, the partial shielding structure layer can also reduce the interference of electrode noise on the isolation structure, improve the isolation effect of the isolation structure, and thus improve the light-emitting performance of the light-emitting functional parts in the display panel.

[0088] Based on the aforementioned technical problems, this application provides a display panel and its manufacturing method, as well as a display device, to improve the touch performance of the display panel. The composition and manufacturing process of the isolation structure mentioned below are detailed in patents CN118251982A, 202410864269.8, PCT / CN2024 / 098407, PCT / CN2024 / 102783, PCT / CN2024 / 098217, PCT / CN2024 / 099419, and PCT / CN2024 / 099072. Further descriptions are provided in CN117979755A, CN117998900A, CN117062489A, CN117580403A, CN116583155A, CN116669477A, ​​CN117396039A, CN116669480A, CN116600606A, and CN117500332A for reference.

[0089] Please see Figure 2 This application provides a display panel 10 including: an array substrate 11, an isolation structure layer 12, a touch electrode 13, and a shielding structure layer 14; the isolation structure layer 12 is disposed on one side of the array substrate 11, and the isolation structure layer 12 includes isolation structures 121, with at least a portion of the isolation structures 121 having an isolation gap 122 between them; the touch electrode 13 is disposed on one side of the array substrate 11 and is located within the isolation gap 122; the shielding structure layer 14 is at least partially located between the isolation structure 121 and the touch electrode 13.

[0090] Specifically, the display panel 10 can be an organic light-emitting diode (OLED) display panel, a quantum dot light-emitting diode (QLED) display panel, etc.

[0091] The array substrate 11 can be a substrate of inorganic materials, an organic material, or a composite substrate formed by stacking inorganic and organic material substrates. The array substrate 11 may include a substrate 111 and a driving circuit layer (not shown) disposed near the touch electrode 13. The driving circuit layer includes a pixel driving circuit, which includes a thin-film transistor. The substrate 111 can be a rigid substrate or a flexible substrate. When the substrate 111 is a rigid substrate, the material of the substrate 111 can be glass or silicon, etc.; when the substrate 111 is a flexible substrate, the material of the substrate 111 can be polyimide.

[0092] The isolation structure layer 12 is a functional layer that can isolate adjacent light-emitting elements 15. The isolation structure layer 12 includes an isolation structure 121 and a plurality of isolation gaps 122 formed on the isolation structure 121; the isolation structure 121 can be understood as a porous structure. The material of the isolation structure 121 includes conductive materials, which can be connected to a fixed potential for transmitting electrical signals.

[0093] It is understood that the touch electrode 13 in the display panel 10 is used to transmit touch signals from the touch panel to the touch system in the display panel 10, thereby ensuring the normal operation of the touch function of the display panel 10. The touch electrode 13 is disposed on the same layer as the isolation structure 121.

[0094] In practical applications, the display panel 10 also includes various touch sensors (such as capacitive sensors, resistive sensors, etc.). The touch electrode 13 can be connected to various touch sensors on the touch panel to form a complete touch detection system to realize the touch function of the display panel 10. The material of the touch electrode 13 may include a low-resistance conductive material to improve the signal transmission efficiency and signal transmission stability of the touch electrode 13.

[0095] It should be noted that the display panel 10 may include multiple touch electrodes 13, and one touch electrode 13 may be disposed in each isolation gap 122 on the isolation structure 121; alternatively, one touch electrode 13 may be disposed in some of the isolation gaps 122; or multiple touch electrodes 13 may be disposed in the isolation gaps 122, and the multiple touch electrodes 13 are insulated from each other. It can be understood that after forming an isolation structure material layer on the array substrate 11, the isolation structure material layer is patterned to form the isolation structure 121 and the touch electrodes 13 within the isolation gaps 122 of the isolation structure 121.

[0096] At least a portion of the shielding structure layer 14 in the display panel 10 is located between the isolation structure 121 and the touch electrode 13. That is, a portion of the shielding structure layer 14 can be disposed on the sidewall of the isolation structure 121 facing the touch electrode 13, or on the sidewall and surface of the isolation structure 121 facing the touch electrode 13, to achieve the effect of electrical signal shielding. Simultaneously, a portion of the shielding structure layer 14 can also be disposed on the sidewall of the touch electrode 13, or on the sidewall and surface of the touch electrode 13.

[0097] The technical solution in this application embodiment includes an array substrate 11 and an isolation structure layer 12. The isolation structure layer 12 is disposed on one side of the array substrate 11 and includes isolation structures 121. An isolation gap 122 is provided between at least a portion of the isolation structures 121. A touch electrode 13 is disposed on one side of the array substrate 11 and is located within the isolation gap 122. A shielding structure layer 14 is located at least partially between the isolation structures 121 and the touch electrode 13. During operation, the display panel 10 described above can shield the electrical signal noise of the isolation structure through the partial shielding structure layer 14, reducing the interference of electrical signal noise on the touch electrode 13. This reduces external interference to the touch signal transmitted in the touch electrode 13, reduces touch signal distortion, and improves the signal-to-noise ratio of the touch signal. Based on this, the touch system in the display panel 10 can more accurately identify and process touch signals, thereby improving the touch performance of the display panel 10. At the same time, the partial shielding structure layer 14 can also reduce the interference of electrical signal noise on the isolation structure, ensuring the signal transmission effect of the isolation structure, and thus improving the display quality of the display panel 10.

[0098] In one embodiment, the isolation structure 121 transmits the cathode signal. Thus, the partial shielding layer 14 can shield electrode noise, reducing interference from electrode noise on the touch electrode 13. This reduces external interference experienced by the touch electrode 13 during touch signal transmission, reduces touch signal distortion, and improves the signal-to-noise ratio of the touch signal. Based on this, the touch system in the display panel 10 can more accurately identify and process touch signals, thereby improving the touch performance of the display panel 10. Simultaneously, the partial shielding layer 14 can also reduce interference from electrode noise on the isolation structure 121, improving the cathode signal transmission effect of the isolation structure 121.

[0099] In one embodiment, such as Figure 2 As shown, the shielding structure layer 14 in the display panel 10 covers at least a portion of the surface of the isolation structure 121 facing the touch electrode 13 and / or at least a portion of the surface of the touch electrode 13 facing the isolation structure 121.

[0100] In one embodiment, the material of the shielding structure layer 14 includes inorganic materials.

[0101] The isolation structure 121 may include at least a portion of its surface facing the touch electrode 13, that is, at least a portion of its side surface (i.e., sidewall) facing the touch electrode 13, or at least a portion of its sidewall and at least a portion of its upper surface facing the touch electrode 13.

[0102] See also Figure 2As shown, the isolation structure 121 in the display panel 10 includes a first isolation layer 121a and a second isolation layer 121b. At least a portion of the surface of the isolation structure 121 facing the touch electrode 13, i.e., at least a portion of the sidewalls of the second isolation layer 121b and / or the first isolation layer 121a facing the touch electrode 13, or at least a portion of the upper surface of the second isolation layer 121b near the touch electrode 13 and at least a portion of the sidewalls of the second isolation layer 121b and / or the first isolation layer 121a facing the touch electrode 13, or at least a portion of the upper and lower surfaces of the second isolation layer 121b near the touch electrode 13, and at least a portion of the sidewalls of the second isolation layer 121b and / or the first isolation layer 121a facing the touch electrode 13. A portion of the lower surface of the second isolation layer 121b is connected to the first isolation layer 121a.

[0103] The touch electrode 13 has at least a portion of its surface facing the isolation structure 121, that is, at least a portion of its side surface near the isolation structure 121, or at least a portion of its upper surface near the isolation structure 121.

[0104] See also Figure 2 As shown, the touch electrode 13 in the display panel 10 includes a first electrode layer 131 and a second electrode layer 132. At least a portion of the surface of the touch electrode 13 facing the isolation structure 121 is either the first electrode layer 131 and / or the second electrode layer 132 facing the isolation structure 121, or at least a portion of the upper surface of the second electrode layer 132 near the isolation structure 121 and at least a portion of the sidewalls of the first electrode layer 131 and / or the second electrode layer 132 facing the isolation structure 121, or at least a portion of the upper and lower surfaces of the second electrode layer 132 near the isolation structure 121, and at least a portion of the sidewalls of the first electrode layer 131 and / or the second electrode layer 132 facing the isolation structure 121.

[0105] Meanwhile, the shielding structure layer 14 in the display panel 10 is made of inorganic materials, enabling the shielding structure layer 14 to provide effective electrical signal shielding over a wide frequency range. This inorganic material can be silicon nitride, silicon oxide, silicon oxynitride, etc., allowing the shielding structure layer 14 to effectively block electrical signals, reduce interference from external electrical signal fields, and improve the stability of the display panel 10 and the quality of the output image.

[0106] In the technical solutions of this application embodiment, a shielding structure layer 14 is provided on at least a portion of the surface of the isolation structure 121 facing the touch electrode 13 and / or on at least a portion of the surface of the touch electrode 13 facing the isolation structure 121. Both can shield the interference of electrode noise in the light-emitting element 15. In practical applications, the shielding structure layer 14 can be provided at the corresponding position according to actual needs to achieve the target shielding effect.

[0107] In one embodiment, see continue to see Figure 2 The shielding structure layer 14 includes a first shielding portion 141, which covers at least a portion of the surface of the touch electrode 13 facing the isolation structure 121.

[0108] The first shielding portion 141 is made of organic or inorganic materials, such as silicon nitride, silicon oxide, or silicon oxynitride, which enables the first shielding portion 141 to have good shielding performance.

[0109] The first shielding portion 141 is disposed on at least a portion of the surface of the touch electrode 13 facing the isolation structure 121, that is, the first shielding portion 141 is disposed on at least a portion of the sidewall of the touch electrode 13 facing the isolation structure 121, or it may also include the first shielding portion 141 being disposed on at least a portion of the upper surface of the touch electrode 13 near the isolation structure 121.

[0110] In the technical solution of this application embodiment, the shielding structure layer 14 includes a first shielding portion 141, which covers at least a portion of the surface of the touch electrode 13 facing the isolation structure 121. When the display panel 10 is in operation, the first shielding portion 141 can shield the interference of electrode noise in the light-emitting element 15 to the touch electrode 13, reduce the external interference of the touch signal transmitted in the touch electrode 13, reduce touch signal distortion, and improve the signal-to-noise ratio of the touch signal. On this basis, the touch system in the display panel 10 can more accurately identify and process the touch signal, thereby improving the touch performance of the display panel 10.

[0111] In one embodiment, such as Figure 3 As shown, the first shielding portion 141 includes a first main body portion 141a, which covers at least a portion of the sidewall of the touch electrode 13. The first shielding portion 141 also includes a first extension portion 141b connected to the first main body portion 141a. The first extension portion 141b is located on the side of the touch electrode 13 away from the array substrate 11, and the surface of the first extension portion 141b near the array substrate 11 is spaced apart from the surface of the touch electrode 13 away from the array substrate 11. Furthermore, the first shielding portion 141 also includes a second extension portion 141c connected to the first main body portion 141a. The second extension portion 141c is connected to the end of the first main body portion 141a near the array substrate 11, and the surface of the second extension portion 141c near the array substrate 11 is spaced apart from the surface of the array substrate 11 near the second extension portion 141c.

[0112] In one specific embodiment, the first main body portion 141a covers at least a portion of the sidewall of the touch electrode 13, meaning that the first main body portion 141a covers a portion of the sidewall of the first electrode layer 131 facing the isolation structure 121, the sidewall of the second electrode layer 132 facing the isolation structure 121, and a portion of the surface of the second electrode layer 132 facing the array substrate 111.

[0113] The first extension 141b is disposed on the side of the second electrode layer 132 in the touch electrode 13 away from the array substrate 11. The surface of the first extension 141b near the array substrate 11 is spaced apart from the surface of the second electrode layer 132 in the touch electrode 13 away from the array substrate 11.

[0114] It is understandable that organic material can be filled between the first extension 141b and the second electrode layer 132. This helps to increase the contact area between the first shielding portion 141 and other film layers in the display panel 10, further improving the connection stability of the first shielding portion 141, such as... Figure 9 As shown.

[0115] The second extension 141c is connected to the end of the first main body 141a away from the first extension 141b, covering part of the isolation gap 122 between the isolation structure 121 and the touch electrode 13. This helps to increase the area of ​​the first shielding portion 141 and improve the shielding effect of the first shielding portion 141.

[0116] In the technical solution of this application embodiment, the first shielding portion 141 includes a first main body portion 141a, which covers at least a portion of the sidewall of the touch electrode 13; the first shielding portion 141 also includes a first extension portion 141b connected to the first main body portion 141a, which covers the side of the touch electrode 13 away from the array substrate 11, and the surface of the first extension portion 141b facing the array substrate 11 is spaced apart from the surface of the touch electrode 13 away from the array substrate 11; the first shielding portion 141 also includes a second extension portion 141c connected to the first main body portion 141a, which is connected to one end of the first main body portion 141a away from the first extension portion 141b, and the surface of the second extension portion 141c facing the array substrate 11 is spaced apart from the surface of the touch electrode 13 away from the array substrate 11. The first shielding portion 141 can cover at least a portion of the sidewall of the touch electrode 13 and at least a portion of the surface on the side near the isolation structure 121. This increases the shielding area of ​​the touch electrode 13, thereby greatly reducing the interference of electrode noise on the touch electrode 13, improving the signal transmission quality of the touch electrode 13, that is, improving the signal-to-noise ratio of the touch signal, and thus improving the touch performance of the display panel 10.

[0117] In one embodiment, the shielding structure layer 14 includes a second shielding portion 142, which covers at least a portion of the surface of the isolation structure 121 facing the touch electrode 13; the orthographic projection size of the second shielding portion 142 on the array substrate 11 is different from the orthographic projection size of the first shielding portion 141 on the array substrate 11; the orthographic projection size of the second shielding portion 142 on the array substrate 11 is smaller than the orthographic projection size of the first shielding portion 141 on the array substrate 11.

[0118] Specifically, the second shielding portion 142 is made of organic or inorganic materials, such as silicon nitride, silicon oxide, or silicon oxynitride, which enables the first shielding portion 141 to have good shielding performance.

[0119] In one specific embodiment, the second shielding portion 142 is disposed on at least a portion of the surface of the isolation structure 121 facing the touch electrode 13, that is, the second shielding portion 142 is disposed on at least a portion of the sidewall of the isolation structure 121 facing the touch electrode 13, or it may also include the second shielding portion 142 being disposed on at least a portion of the upper surface of the isolation structure 121 near the touch electrode 13.

[0120] The orthographic projection size of the second shielding portion 142 on the array substrate 11 is different from that of the first shielding portion 141 on the array substrate 11. Optionally, the orthographic projection size of the second shielding portion 142 on the array substrate 11 may be smaller than that of the first shielding portion 141 on the array substrate 11. It should be noted that the orthographic projection size of the second shielding portion 142 on the array substrate 11 can be understood as the size of the area covered by the second shielding portion 142 on the plane of the array substrate 11; the orthographic projection size of the first shielding portion 141 on the array substrate 11 can be understood as the size of the area covered by the first shielding portion 141 on the plane of the array substrate 11.

[0121] In practical applications, the dimensions of the second shielding portion 142 in the second direction may be the same as or different from those of the first shielding portion 141 in the second direction, where the second direction is perpendicular to the thickness direction of the array substrate 11. Furthermore, the dimensions of the second shielding portion 142 in the second direction may or may not be the same as those of the first shielding portion 141 in the second direction. (Refer to...) Figure 4 As shown, the dimension of the second shielding portion 142 in the second direction can be understood as the height of the second shielding portion 142. The dimension of the first shielding portion 141 in the second direction can be understood as the height of the first shielding portion 141. For example... Figure 4 As shown, the first direction is the X direction, and the second direction is the Y direction.

[0122] In the technical solution of this application embodiment, the shielding structure layer 14 includes a second shielding portion 142, which covers at least a portion of the surface of the isolation structure 121 facing the touch electrode 13. When the display panel 10 is in operation, the interference of electrode noise to the isolation structure 121 can be reduced by the second shielding portion 142, thereby improving the isolation effect of the isolation structure 121 and improving the light-emitting performance of the light-emitting functional part in the display panel 10.

[0123] In one embodiment, such as Figure 4 As shown, the second shielding portion 142 includes a second main body portion 142a that covers at least a portion of the sidewall of the isolation structure 121; the second shielding portion 142 also includes a third extension portion 142b connected to the second main body portion 142a, the third extension portion 142b being located on the side of the isolation structure 121 away from the array substrate 11, and the surface of the third extension portion 142b facing the array substrate 11 being spaced apart from the surface of the isolation structure 121 away from the array substrate 11; one end of the second main body portion 142a facing the array substrate 11 is spaced apart from the surface of the isolation structure 121 close to the array substrate 11.

[0124] In one specific embodiment, the second main body portion 142a covering at least a portion of the sidewall of the isolation electrode means that the second main body portion 142a covers a portion of the sidewall of the first isolation layer 121a in the isolation structure 121, the sidewall of the second isolation layer 121b facing the touch electrode 13, and at least a portion of the surface of the second isolation layer 121b near the touch electrode 13.

[0125] The third extension 142b is disposed on the side of the second isolation layer 121b away from the array substrate 11 in the isolation structure 121. The surface of the third extension 142b near the array substrate 11 is spaced apart from the surface of the second isolation layer 121b away from the array substrate 11 in the isolation structure 121.

[0126] In this embodiment of the technical solution, the second shielding portion 142 includes a second main body portion 142a, covering at least a portion of the sidewall of the isolation structure 121; the second shielding portion 142 also includes a third extension portion 142b connected to the second main body portion 142a, the third extension portion 142b being located on the side of the isolation structure 121 away from the array substrate 11, and the surface of the third extension portion 142b near the array substrate 11 being spaced apart from the surface of the isolation structure 121 away from the array substrate 11; the end of the second main body portion 142a facing the array substrate 11 is spaced apart from the surface of the isolation structure 121 near the array substrate 11. The second shielding portion 142 can cover at least a portion of the sidewall of the isolation structure 121 and at least a portion of the surface near the touch electrode 13, thus increasing the shielding area of ​​the isolation structure 121, thereby greatly reducing the interference of electrode noise on the isolation structure 121, improving the isolation effect of the isolation structure 121, and thus improving the light-emitting performance of the light-emitting functional part in the display panel 10.

[0127] In one embodiment, see further. Figure 4 As shown, the isolation structure 121 includes a first isolation layer 121a and a second isolation layer 121b. The first isolation layer 121a is disposed on the side of the second isolation layer 121b facing the array substrate 11. The orthographic projection of the first isolation layer 121a on the array substrate 11 is located within the orthographic projection of the second isolation layer 121b on the array substrate 11.

[0128] In the isolation structure 121, the first isolation layer 121a and the second isolation layer 121b can form an undercut structure that is larger at the top and smaller at the bottom. In this way, adjacent light-emitting elements 15 can be separated during the vapor deposition process, thereby avoiding crosstalk between light-emitting elements 15 of different colors and improving the display effect of the display panel 10.

[0129] In an optional embodiment, the first isolation layer 121a is made of titanium or molybdenum; the second isolation layer 121b is made of aluminum, silver or copper.

[0130] In one embodiment, the touch electrode 13 includes a first electrode layer 131 and a second electrode layer 132, the first electrode layer 131 being disposed on the side of the second electrode layer 132 facing the array substrate 11; the orthographic projection of the first electrode layer 131 on the array substrate is located within the orthographic projection of the second electrode layer 132 on the array substrate.

[0131] The first electrode layer 131 and the second electrode layer 132 in the aforementioned touch electrode 13 can form an undercut structure that is larger at the top and smaller at the bottom. This improves the display effect of the display panel 10.

[0132] Optionally, the first electrode layer 131 and the second electrode layer 132 can both be made of metallic materials, and the second isolation layer 121b and the second electrode layer 132 can be prepared using the same process.

[0133] It should be noted that the first insulating layer 121a provides both conductivity and support to the second insulating layer 121b. Optionally, the dimension of the first insulating layer 121a in the thickness direction may be larger than the dimension of the second insulating layer 121b in the thickness direction.

[0134] Meanwhile, the first electrode layer 131 provides conductivity and support for the second electrode layer 132. Optionally, the dimension of the first electrode layer 131 in the thickness direction may be larger than the dimension of the second electrode layer 132 in the thickness direction.

[0135] The first isolation layer 121a has the same thickness dimension as the first electrode layer 131 in the thickness direction; the second isolation layer 121b has the same thickness dimension as the second electrode layer 132 in the thickness direction.

[0136] In this embodiment, the first isolation layer 121a and the first electrode layer 131 can be fabricated using the same process, making the fabrication process of the display panel 10 simple and easy to implement. Optionally, both the first isolation layer 121a and the second isolation layer 121b can be made of metallic materials.

[0137] In an optional embodiment, the first isolation layer 121a and the first electrode layer 131 are disposed in the same layer and made of the same material.

[0138] In an optional embodiment, the second isolation layer 121b and the second electrode layer 132 are disposed in the same layer and made of the same material.

[0139] In one embodiment, such as Figure 5 As shown, the above-mentioned isolation structure 121 also includes a third isolation layer 121c, which is disposed on the side of the first isolation layer 121b facing the array substrate 11; the orthographic projection of the first isolation layer 121a on the array substrate 11 is located within the orthographic projection of the third isolation layer 121c on the array substrate 11.

[0140] Among them, the first isolation layer 121a, the second isolation layer 121b and the third isolation layer 121c in the isolation structure 121 can form an "I" shaped structure.

[0141] In an optional embodiment, the third isolation layer 121c is made of titanium or molybdenum.

[0142] In one embodiment, see further. Figure 5As shown, the touch electrode 13 also includes a third electrode layer 133, which is disposed on the side of the first electrode layer 131 facing the array substrate 11; the orthographic projection of the first electrode layer 131 on the array substrate 11 is located within the orthographic projection of the third electrode layer 133 on the array substrate 11.

[0143] It should be noted that the third electrode layer 133 has both conductive and supporting functions. Optionally, the dimension of the third electrode layer 133 in the first direction can be larger than the dimension of the first electrode layer 131 in the first direction.

[0144] The third isolation layer 121c has the same thickness dimension as the third electrode layer 133.

[0145] In this embodiment, the third isolation layer 121c and the third electrode layer 133 can be fabricated using the same process, making the fabrication process of the display panel 10 simple and easy to implement. Optionally, both the third isolation layer 121c and the third electrode layer 133 can be made of metallic materials.

[0146] In an optional embodiment, the third isolation layer 121c and the third electrode layer 133 are disposed in the same layer and made of the same material.

[0147] In one embodiment, see further. Figure 4 As shown, the isolation structure layer 12 further includes: a plurality of isolation openings 123 formed by the isolation structure 121; the display panel 10 further includes a plurality of light-emitting elements 15, the plurality of light-emitting elements 15 being disposed corresponding to the plurality of isolation openings 123, and at least a portion of the light-emitting elements 15 being disposed between the corresponding isolation openings 123.

[0148] In an optional embodiment, such as Figure 6 As shown, the light-emitting element 15 includes a first electrode 151, a light-emitting functional part 152, and a second electrode 153, which are sequentially stacked along the distance from the array substrate 11. The second electrode 153 is electrically connected to the isolation structure 121.

[0149] The first electrode 151 can be an anode, and the second electrode 153 can be a cathode. It is understood that the light-emitting functional unit 152 includes at least an emission layer 152a (EML), and may also include a functional layer 152b, which may include at least one of a hole injection layer (HIL), a hole transport layer (HTL), and an electron block layer (EBL). It is also understood that it may further include at least one of an electron injection layer (EIL), an electron transport layer (ETL), and a hole block layer (HBL). Alternatively, the light-emitting functional unit 152 may also be a stacked emission layer 152a, that is, including at least two emission layers 152a and a charge generation layer (CGL) located between each adjacent emission layer 152a.

[0150] In this embodiment, adjacent light-emitting functional parts 152 can be separated by the isolation structure 121, thereby avoiding crosstalk between adjacent light-emitting functional parts 152 and improving the display effect of the display panel 10. In addition, the isolation structure layer 12 is provided with the isolation structure 121 and a plurality of isolation openings 123 formed by the isolation structure 121, so that the light-emitting functional parts 152 can be fabricated by material patterning photolithography process, thereby eliminating the need to use FMM and providing pixel aperture ratio.

[0151] In one embodiment, see further. Figure 6 As shown, the display panel 10 also includes a pixel defining layer 16; the isolation structure 121 and the touch electrode 13 are both located on the side of the pixel defining layer 16 away from the array substrate 11;

[0152] The pixel limiting layer 16 is provided with a plurality of pixel openings; the plurality of pixel openings are connected to the isolation openings 123, and a plurality of light-emitting elements 15 are provided corresponding to the plurality of pixel openings, with at least a portion of the light-emitting elements 15 disposed within the corresponding pixel opening.

[0153] The pixel limiting layer 16 in the array substrate 11 is provided with multiple pixel openings, multiple isolation openings 123 are correspondingly connected to the multiple pixel openings, and multiple light-emitting elements 15 are all correspondingly connected to the multiple pixel openings, with each light-emitting element 15 corresponding to a pixel opening.

[0154] Meanwhile, the display panel 10 also includes a planarization layer 17, which is disposed between the array substrate 11 and the pixel defining layer 16.

[0155] In an optional embodiment, the material of the shielding structure layer includes inorganic materials.

[0156] In one embodiment, see further. Figure 6 As shown, the display panel 10 also includes a packaging structure layer, which includes a plurality of packaging units 18. The plurality of packaging units 18 are correspondingly disposed with a plurality of light-emitting elements 15 on the side of the corresponding light-emitting element 15 away from the array substrate 11.

[0157] In an optional embodiment, the shielding structure layer 14 is disposed in the same layer and made of the same material as the plurality of encapsulation units 18.

[0158] Specifically, each encapsulation unit 18 corresponds one-to-one with a corresponding light-emitting element 15. Multiple encapsulation units 18 cover the surface of the corresponding light-emitting element 15 away from the array substrate 11 and at least a portion of the surface of the isolation structure 121 near the corresponding light-emitting element 15. In this way, multiple encapsulation units 18 can effectively mitigate the impact of external impacts on the internal components of the display panel 10, reducing the probability of cracks, broken lines, and other malfunctions in the display panel 10. Furthermore, they can effectively isolate the display panel 10 from the external environment, preventing moisture from interfering with the light-emitting element 15, ensuring that the internal components are always in a dry and clean environment, preventing damage to the internal components, and improving the lifespan of the display panel 10.

[0159] The isolation structure 121 has at least a portion of its surface near the corresponding light-emitting element 15, that is, at least a portion of its sidewall near the corresponding light-emitting element 15, or at least a portion of its surface near the corresponding light-emitting element 15, or at least a portion of its sidewall and at least a portion of its surface near the corresponding light-emitting element 15.

[0160] In an optional embodiment, the planar distribution of the display panel 10 is as follows: Figure 7 As shown, the isolation structure layer 12 in the display panel 10 is distributed in a grid pattern.

[0161] One embodiment of this application provides a display panel 10, please refer to... Figure 4 As shown, the display panel 10 includes:

[0162] Array substrate 11;

[0163] An isolation structure layer 12 is disposed on one side of the array substrate 11. The isolation structure layer 12 includes an isolation structure 121 and a touch electrode 13. The isolation structure 121 and the touch electrode 13 are spaced apart.

[0164] The shielding structure layer 14 is at least partially located between the isolation structure 121 and the touch electrode 13.

[0165] In one embodiment, an isolation gap 122 is provided between at least some of the isolation structures 121, and the touch electrode 13 is located within the isolation gap 122.

[0166] The specific design of the shielding structure layer 14 can be found in the descriptions of the foregoing embodiments, and will not be repeated here. Please refer to... Figure 8 One embodiment of this application provides a method for manufacturing a display panel 10, the method comprising:

[0167] S100, provides array substrate 11.

[0168] S200, an isolation structure layer 12 and a touch electrode 13 are formed on one side of the array substrate 11; the isolation structure layer 12 includes an isolation structure 121 and a touch electrode 13; at least a portion of the isolation structures 121 are provided with an isolation gap 122, and the touch electrode 13 is located within the isolation gap 122.

[0169] S300, at least a partially shielding structure layer 14 is formed between the isolation structure 121 and the touch electrode 13.

[0170] The aforementioned isolation structure layer 12 refers to a structure that can isolate adjacent light-emitting elements 15. The isolation structure layer 12 includes an isolation structure 121 and a touch electrode 13, and an isolation gap 122 is provided between at least a portion of the isolation structures 121. The isolation structures 121 in the isolation structure layer 12 are used to connect to a fixed potential.

[0171] The shielding structure layer 14 refers to a structure that can shield external electrical signal interference, that is, it is used to shield the interference generated by electrode noise in the light-emitting element 15, and plays a protective role for the touch electrode 13 and the isolation structure 121.

[0172] For a detailed description of the specific structure of the formed isolation structure 121, touch electrode 13 and shielding structure layer 14, please refer to the detailed description in the above embodiments, and it will not be repeated here.

[0173] The method for preparing the display panel 10 provided in this embodiment involves forming an isolation structure layer 12 and a touch electrode 13 on one side of an array substrate 11, and forming at least a partial shielding structure layer 14 between the isolation structure 121 and the touch electrode 13. The isolation structure layer 12 includes an isolation structure 121 and an isolation gap 122. The isolation structure 121 is connected to a fixed potential, and the touch electrode 13 is located within the isolation gap 122. During operation, the display panel 10 prepared using the method provided in this embodiment can shield electrode noise through the partial shielding structure layer 14, reducing the interference of electrode noise on the touch electrode 13. This reduces external interference to the touch signal transmitted in the touch electrode 13, reduces touch signal distortion, and improves the signal-to-noise ratio of the touch signal. Based on this, the touch system in the display panel 10 can more accurately identify and process touch signals, thereby improving the touch performance of the display panel 10. At the same time, the partial shielding structure layer 14 can also reduce the interference of electrode noise on the isolation structure 121, improve the isolation effect of the isolation structure 121, and thus improve the light-emitting performance of the light-emitting functional part 152 in the display panel 10.

[0174] In one embodiment, the step of forming at least a partial shielding structure layer 14 between the isolation structure 121 and the touch electrode 13 in S300 above may include: forming a shielding structure layer 14 on at least a portion of the surface of the isolation structure 121 facing the touch electrode 13 and / or on at least a portion of the surface of the touch electrode 13 facing the isolation structure 121; wherein the material of the shielding structure layer 14 includes inorganic materials.

[0175] It should be noted that when manufacturing different types of display panels 10, the processes for forming at least a partial shielding structure layer 14 may be the same or different due to the different design requirements and manufacturing processes of the different display panels 10. Furthermore, the coverage area of ​​the at least partial shielding structure layer 14 can be flexibly designed according to actual shielding requirements, and can be large or small.

[0176] The description of forming at least a partial isolation structure layer 12 can be found in the specific description in the above embodiments, and will not be repeated here.

[0177] It should be noted here that during the process of manufacturing the display panel using the established process flow, after multiple light-emitting elements have been fabricated, such as... Figure 9 As shown, a vapor-deposited film layer 19 (including a light-emitting layer, a functional layer, and an electrode layer, such as a cathode layer, etc.) will exist on the side surface of the second electrode layer 132 away from the array substrate 11 in the touch electrode 13. Furthermore, a shielding structure layer 14 can be covered on the side surface of the vapor-deposited film layer 19 away from the array substrate 11.

[0178] Next, the shielding structure layer 14 covering the side of the second electrode layer 132 away from the array substrate 11 can be removed first, and then the vapor-deposited film layer 19 covering the surface of the second electrode layer 132 away from the array substrate 11 can be removed. The structure after removal is as follows: Figure 4 As shown. This reduces the metallic impedance of the touch electrode 13, decreasing the obstruction to the transmission of touch signals within the touch electrode, thereby improving the touch sensitivity of the display panel 10. Of course, in other embodiments, the vapor-deposited film layer 19 may be retained in subsequent products.

[0179] The method for manufacturing the display panel 10 provided in this embodiment forms a shielding structure layer 14 on at least a portion of the surface of the isolation structure 121 facing the touch electrode 13 and / or on at least a portion of the surface of the touch electrode 13 facing the isolation structure 121. This allows for flexible design of the coverage position and range of the shielding structure layer 14 according to actual shielding requirements during the manufacturing process of the display panel 10, thereby enhancing the electrical signal interference shielding effect of the display panel 10, improving the display effect of the display panel 10, and increasing the practicality and reliability of the manufacturing method.

[0180] In one embodiment, the aforementioned isolation structure 121 encloses and forms a plurality of isolation openings 123; before performing the step of forming at least a partial shielding structure layer 14 between the isolation structure 121 and the touch electrode 13 in S300, as Figure 10 As shown, the above method also includes the following steps:

[0181] S400, a light-emitting functional layer, a second electrode material layer, and an encapsulation material layer are formed on the side of the isolation structure 121 and the touch electrode 13 away from the array substrate 11.

[0182] Specifically, a light-emitting functional layer, a second electrode material layer, and an encapsulation material layer can be sequentially formed on the entire surface of the isolation structure 121 and the touch electrode 13 away from the array substrate 11. The light-emitting functional layer can be made of inorganic light-emitting materials, organic light-emitting materials, or a mixture of both. Optionally, the second electrode material layer can be made of transparent conductive materials, metallic materials, etc. Meanwhile, the encapsulation material layer can be an inorganic material.

[0183] S500, the light-emitting functional layer, the second electrode material layer and the encapsulation material layer are patterned so that a light-emitting element 15 is formed at the isolation opening 123, an encapsulation unit 18 is located on the side of the light-emitting element 15 away from the array substrate 11, and a shielding structure layer 14 is formed.

[0184] Optionally, the light-emitting element 15 can be any color light-emitting element, such as a red light-emitting element, a green light-emitting element, or a blue light-emitting element. In practical applications, after the light-emitting functional layer, the second electrode material layer, and the encapsulation material layer corresponding to the last color light-emitting element are fabricated, the light-emitting functional layer, the second electrode material layer, and the encapsulation material layer can be patterned so that the light-emitting element 15, multiple encapsulation units 18, and the shielding structure layer 14 are formed at the isolation opening 123.

[0185] It is understood that the light-emitting functional layer includes at least an unpatterned emission layer (EML), and may also include an unpatterned functional layer, which may include at least one of a hole injection layer (HIL), a hole transport layer (HTL), and an electron block layer (EBL). It is also understood that it may further include at least one of an electron injection layer (EIL), an electron transport layer (ETL), and a hole block layer (HBL).

[0186] The technical solution in this application embodiment forms a light-emitting functional layer, a second electrode material layer, and an encapsulation material layer on the side of the isolation structure 121 and the touch electrode 13 away from the array substrate 11. The light-emitting functional layer, the second electrode material layer, and the encapsulation material layer are patterned so that a light-emitting element 15 is formed at the isolation opening 123, an encapsulation unit is located on the side of the light-emitting element 15 away from the array substrate 11, and a shielding structure layer 14 is formed. By forming the light-emitting functional layer, the second electrode material layer, and the encapsulation material layer on the entire surface, the above method can ensure that each film layer is evenly distributed in the display area of ​​the entire display panel 10, preventing the problem of uneven local light emission.

[0187] This application also provides a display device, including the display panel 10 in any of the above embodiments.

[0188] The display device can be a laptop computer, mobile phone, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, watch, clock, calculator, TV monitor, flat panel display, computer monitor, car display (e.g., odometer display), navigator, cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic photograph, electronic billboard or sign, projector, etc.

[0189] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, include: Array substrate; An isolation structure layer is disposed on one side of the array substrate, the isolation structure layer includes isolation structures, and at least some of the isolation structures are provided with isolation gaps; The touch electrode is disposed on one side of the array substrate and located within the isolation gap; A shielding structure layer is located at least partially between the isolation structure and the touch electrode.

2. The display panel according to claim 1, characterized in that, The shielding structure layer includes a first shielding portion that covers at least a portion of the surface of the touch electrode facing the isolation structure.

3. The display panel according to claim 2, characterized in that, The first shielding portion includes a first main body portion that covers at least a portion of the sidewall of the touch electrode.

4. The display panel according to claim 3, characterized in that, The first shielding portion further includes a first extension portion connected to the first main body portion. The first extension portion is located on the side of the touch electrode away from the array substrate, and the surface of the first extension portion near the array substrate is spaced apart from the surface of the touch electrode away from the array substrate.

5. The display panel according to claim 3, characterized in that, The first shielding portion further includes a second extension connected to the first main body portion. The second extension is connected to one end of the first main body portion near the array substrate, and the side surface of the second extension near the array substrate is spaced apart from the side surface of the array substrate near the second extension.

6. The display panel according to claim 1, characterized in that, The shielding structure layer includes a second shielding portion that covers at least a portion of the surface of the isolation structure facing the touch electrode.

7. The display panel according to claim 6, characterized in that, The shielding structure layer further includes a first shielding portion, which covers at least a portion of the surface of the touch electrode facing the isolation structure; the orthographic projection size of the second shielding portion on the array substrate is different from the orthographic projection size of the first shielding portion in the shielding structure layer on the array substrate.

8. The display panel according to claim 7, characterized in that, The orthographic projection size of the second shielding portion on the array substrate is smaller than the orthographic projection size of the first shielding portion on the array substrate.

9. The display panel according to claim 6, characterized in that, The second shielding portion includes a second main body portion that covers at least a portion of the sidewalls of the isolation structure.

10. The display panel according to claim 9, characterized in that, The second shielding portion further includes a third extension connected to the second main body portion. The third extension is located on the side of the isolation structure away from the array substrate, and the surface of the third extension near the array substrate is spaced apart from the surface of the isolation structure away from the array substrate.

11. The display panel according to claim 10, characterized in that, The end of the second main body facing the array substrate is spaced apart from the side surface of the isolation structure near the array substrate.

12. The display panel according to any one of claims 1-5, characterized in that, The isolation structure includes a first isolation layer and a second isolation layer, wherein the first isolation layer is disposed on the side of the second isolation layer facing the array substrate; the orthographic projection of the first isolation layer on the array substrate is located within the orthographic projection of the second isolation layer on the array substrate.

13. The display panel according to claim 12, characterized in that, The first isolation layer is made of titanium or molybdenum; the second isolation layer is made of aluminum, silver or copper.

14. The display panel according to claim 13, characterized in that, The touch electrode includes a first electrode layer and a second electrode layer, wherein the first electrode layer is disposed on the side of the second electrode layer facing the array substrate; the orthographic projection of the first electrode layer on the array substrate is located within the orthographic projection of the second electrode layer on the array substrate.

15. The display panel according to claim 14, characterized in that, The first isolation layer and the first electrode layer are made of the same material and are in the same layer.

16. The display panel according to claim 14, characterized in that, The second isolation layer and the second electrode layer are made of the same material and are in the same layer.

17. The display panel according to claim 16, characterized in that, The isolation structure further includes a third isolation layer, which is disposed on the side of the first isolation layer facing the array substrate; the orthographic projection of the first isolation layer on the array substrate is located within the orthographic projection of the third isolation layer on the array substrate.

18. The display panel according to claim 17, characterized in that, The material of the third isolation layer includes titanium or molybdenum.

19. The display panel according to claim 18, characterized in that, The touch electrode further includes a third electrode layer, which is disposed on the side of the first electrode layer facing the array substrate; the orthographic projection of the first electrode layer on the array substrate is located within the orthographic projection of the third electrode layer on the array substrate.

20. The display panel according to claim 19, characterized in that, The third isolation layer is made of the same material as the third electrode layer.

21. The display panel according to claim 1, characterized in that, The isolation structure encloses and forms multiple isolation openings; the display panel also includes multiple light-emitting elements, which are correspondingly arranged with the multiple isolation openings, and at least a portion of the light-emitting elements are disposed in the corresponding isolation openings.

22. The display panel according to claim 21, characterized in that, The light-emitting element includes a first electrode, a light-emitting functional part, and a second electrode, which are sequentially stacked along the distance from the array substrate, and the second electrode is electrically connected to the isolation structure.

23. The display panel according to claim 21, characterized in that, The display panel further includes a pixel defining layer; the isolation structure and the touch electrode are both located on the side of the pixel defining layer away from the array substrate; The pixel defining layer is provided with a plurality of pixel openings; the pixel openings are connected to the isolation openings, the plurality of light-emitting elements are correspondingly disposed with respect to the plurality of pixel openings, and at least a portion of the light-emitting elements are disposed within the corresponding pixel openings.

24. The display panel according to claim 21, characterized in that, The material of the shielding structure layer includes inorganic materials.

25. The display panel according to claim 21, characterized in that, The display panel further includes a packaging structure layer, which includes multiple packaging units. The multiple packaging units are disposed corresponding to the multiple light-emitting elements and are located on the side of the multiple light-emitting elements away from the array substrate.

26. The display panel according to claim 25, characterized in that, The shielding structure layer is made of the same layer and material as the plurality of encapsulation units.

27. A display panel, characterized in that, include: Array substrate; An isolation structure layer is disposed on one side of the array substrate. The isolation structure layer includes an isolation structure and a touch electrode, wherein the isolation structure and the touch electrode are spaced apart. A shielding structure layer is at least partially located between the isolation structure and the touch electrode; The shielding structure layer includes a first shielding portion, which includes a first main body portion that covers at least a portion of the sidewalls of the touch electrode.

28. The display panel according to claim 27, characterized in that, The first shielding portion covers at least a portion of the surface of the touch electrode facing the isolation structure.

29. The display panel according to claim 28, characterized in that, The first shielding portion further includes a first extension portion connected to the first main body portion. The first extension portion is located on the side of the touch electrode away from the array substrate, and the surface of the first extension portion near the array substrate is spaced apart from the surface of the touch electrode away from the array substrate.

30. The display panel according to claim 28, characterized in that, The first shielding portion further includes a second extension connected to the first main body portion. The second extension is connected to one end of the first main body portion near the array substrate, and the side surface of the second extension near the array substrate is spaced apart from the side surface of the array substrate near the second extension.

31. The display panel according to claim 27, characterized in that, The shielding structure layer includes a second shielding portion that covers at least a portion of the surface of the isolation structure facing the touch electrode.

32. The display panel according to claim 31, characterized in that, The shielding structure layer further includes a first shielding portion, which covers at least a portion of the surface of the touch electrode facing the isolation structure; the orthographic projection size of the second shielding portion on the array substrate is different from the orthographic projection size of the first shielding portion in the shielding structure layer on the array substrate.

33. The display panel according to claim 32, characterized in that, The orthographic projection size of the second shielding portion on the array substrate is smaller than the orthographic projection size of the first shielding portion on the array substrate.

34. The display panel according to claim 33, characterized in that, The second shielding portion includes a second main body portion that covers at least a portion of the sidewalls of the isolation structure.

35. The display panel according to claim 34, characterized in that, The second shielding portion further includes a third extension connected to the second main body portion. The third extension is located on the side of the isolation structure away from the array substrate, and the surface of the third extension near the array substrate is spaced apart from the surface of the isolation structure away from the array substrate.

36. The display panel according to claim 35, characterized in that, The end of the second main body facing the array substrate is spaced apart from the side surface of the isolation structure near the array substrate.

37. The display panel according to claim 27, characterized in that, The display panel further includes a packaging structure layer, which includes multiple packaging units. The multiple packaging units are disposed corresponding to multiple light-emitting elements in the display panel and are located on the side of the multiple light-emitting elements away from the array substrate.

38. The display panel according to claim 37, characterized in that, The shielding structure layer is made of the same layer and material as the plurality of encapsulation units.

39. A method for manufacturing a display panel, characterized in that, include: Provide array substrate; An isolation structure and a touch electrode are formed on one side of the array substrate; At least some of the isolation structures are provided with isolation gaps, and the touch electrode is located within the isolation gaps; At least a partial shielding structure layer is formed between the isolation structure and the touch electrode.

40. The preparation method according to claim 39, characterized in that, The formation of at least a partial shielding structure layer between the isolation structure and the touch electrode includes: The shielding structure layer is formed on at least a portion of the surface of the isolation structure facing the touch electrode and / or on at least a portion of the surface of the touch electrode facing the isolation structure.

41. The preparation method according to claim 40, characterized in that, The material of the shielding structure layer includes inorganic materials.

42. The preparation method according to claim 40, characterized in that, The isolation structure encloses and forms a plurality of isolation openings; prior to the step of forming at least a partial shielding structure layer between the isolation structure and the touch electrode, the method further includes: A light-emitting functional layer, a second electrode material layer, and an encapsulation material layer are formed on the entire side of the isolation structure and the touch electrode away from the array substrate; The light-emitting functional layer, the second electrode material layer, and the encapsulation material layer are patterned to form a light-emitting element at the isolation opening, an encapsulation unit located on the side of the light-emitting element away from the array substrate, and the shielding structure layer.

43. A display device, characterized in that, Includes a display panel as described in any one of claims 1-38 or a display panel prepared by the method as described in any one of claims 39-42.

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