Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel has a display area and a non-display area adjacent to the display area. The display panel comprises a substrate, a pixel definition layer arranged on one side of the substrate, the pixel definition layer comprising a first opening arranged in the display area and a second opening arranged in the non-display area, and a support layer comprising a first support part and a second support part, the first support part being arranged adjacent to the first opening and the second support part being arranged adjacent to the second opening, and the difference between the distance from the top of the first support part away from the substrate side to the substrate and the distance from the top of the second support part away from the substrate side to the substrate being less than or equal to a preset difference in the thickness direction of the display panel. The deformation amount of the display area and the non-display area of the display panel remains consistent during the drop strength test or after the actual use drop, and the risk of damage is reduced.

Description

Technical Field

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

[0002] With the advancement of technology, digital display devices such as smartphones and tablets have been widely used, and the display panel is an indispensable human-computer interaction interface in these devices. Organic Light Emitting Diode (OLED) display panels, for example, have advantages such as self-illumination, energy saving, flexibility, and good adaptability. Furthermore, display devices using OLEDs do not require a backlight and feature fast response times and excellent display quality, attracting user attention and being widely used in smartphones, tablets, and other terminal products.

[0003] Due to the limitations of the existing film layer structure of display panels, the film layer structure of the display area and non-display area is prone to inconsistent deformation when the display panel is dropped, which can lead to damage to the display panel.

[0004] Therefore, there is an urgent need for a new display panel and display device. Summary of the Invention

[0005] This application provides a display panel and display device. By setting the difference between the distance from the top of the first support portion to the substrate and the distance from the top of the second support portion to the substrate to be less than or equal to a preset difference, the difference in support force between the display area and the non-display area of ​​the display panel is reduced, thereby enhancing the strength of the display panel screen and ensuring that the deformation of the display area and the non-display area of ​​the display panel remains consistent after drop strength testing or actual use, thus reducing the risk of damage.

[0006] One embodiment of this application provides a display panel having a display area and a non-display area disposed adjacent to the display area. The display panel includes: a substrate; a pixel definition layer disposed on one side of the substrate, the pixel definition layer including a first opening in the display area and a second opening in the non-display area; and a support layer including a first support portion and a second support portion. The first support portion is disposed on the side of the pixel definition layer in the display area away from the substrate, and the first support portion and the first opening are disposed adjacent to each other. The second support portion is disposed on the side of the pixel definition layer in the non-display area away from the substrate, and the second support portion and the second opening are disposed adjacent to each other. Along the thickness direction of the display panel, the difference between the distance from the top of the first support portion on the side away from the substrate to the substrate and the distance from the top of the second support portion on the side away from the substrate to the substrate is less than or equal to a preset difference.

[0007] According to one aspect of this application, along the thickness direction of the display panel, the height ratio between the first support portion and the second support portion ranges from 0.9 to 1.1; preferably, the height of the first support portion and the height of the second support portion are equal; preferably, along the thickness direction of the display panel, the thickness of the pixel definition layer located in the display area and the thickness of the pixel definition layer located in the non-display area are equal.

[0008] According to one aspect of this application, the pixel definition layer includes a first pixel definition portion for carrying the first support portion and a second pixel definition portion for carrying the second support portion, wherein the ratio of the distance between two adjacent first pixel definition portions to the distance between two adjacent second pixel definition portions ranges from 0.9 to 1.1; preferably, the distance between two adjacent first pixel definition portions and the distance between two adjacent second pixel definition portions are equal.

[0009] According to one aspect of this application, along the thickness direction of the display panel, the ratio between the projected area of ​​the first pixel definition portion on the substrate and the projected area of ​​the second pixel definition portion on the substrate ranges from 0.9 to 1.1; preferably, the projected area of ​​the first pixel definition portion on the substrate is equal to the projected area of ​​the second pixel definition portion on the substrate.

[0010] According to one aspect of this application, the minimum distance from the second support portion to the edge of the second pixel definition portion corresponding to the second support portion is 0 μm to 5 μm.

[0011] According to one aspect of this application, the arrangement of the first support portion in the display area is the same as the arrangement of the second support portion in the non-display area.

[0012] According to one aspect of this application, a signal line layer is also included, the signal line layer being located in the non-display area and between the pixel definition layer and the substrate, the signal line layer including low-level voltage signal lines, the second opening exposing at least a portion of the low-level voltage signal lines.

[0013] According to one aspect of this application, it further includes a cathode layer that covers the pixel definition layer on the side opposite to the substrate and is partially located within the first opening and the second opening, wherein the low-level voltage signal line is electrically connected to the cathode layer.

[0014] According to one aspect of this application, the support layer and the pixel definition layer are made of the same material; preferably, the material of the support layer and the pixel definition layer includes an organic resin material.

[0015] In another aspect, the present invention provides a display device, comprising: a display panel, wherein the display panel is the display panel described in any of the above embodiments.

[0016] Compared with the prior art, the display panel provided in this embodiment of the invention includes a substrate, a pixel definition layer, and a support layer. The display area includes a first support portion and a first opening arranged adjacent to each other, and the non-display area includes a second support portion and a second opening arranged adjacent to each other. By setting the difference between the distance from the top of the first support portion to the substrate and the distance from the top of the second support portion to the substrate to be less than or equal to a preset difference, the difference in support force between the display area and the non-display area of ​​the display panel is reduced, the strength of the display panel is enhanced, and the deformation of the display area and the non-display area of ​​the display panel remains consistent after drop strength testing or actual use, thereby reducing the risk of damage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a display panel provided in one embodiment of this application;

[0019] Figure 2 yes Figure 1 A membrane structure diagram provided in one embodiment at point BB;

[0020] Figure 3 This is a schematic diagram showing the arrangement of the first support portion and the second support portion according to one embodiment of this application;

[0021] Figure 4 yes Figure 1 Another embodiment of the membrane structure provided at point BB;

[0022] Figure 5 yes Figure 1 A membrane structure diagram provided in another embodiment at point BB.

[0023] In the attached image:

[0024] 1-Substrate; 2-Pixel definition layer; 21-First pixel definition section; 22-Second pixel definition section; 3-Support layer; 31-First support section; 32-Second support section; 4-Cathode layer; 5-Light emission layer; 6-Anode layer; 7-Signal line layer; 71-Low-level voltage signal line; 72-High-level voltage signal line; K1-First opening; K2-Second opening; AA-Display area; NA-Non-display area; BA-Isolation area; FA-Encapsulation area. Detailed Implementation

[0025] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0027] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0028] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0029] In related technologies, drop strength testing is one of the requirements for display panels. Due to the structural limitations of display panels, support parts are only set in the display area, while no support parts are set in the non-display area. Alternatively, the support parts set in the display area may be higher than the support parts set in the non-display area. When drop strength testing is performed on hard screen display panels using Frit (glass adhesive), the display panel will exhibit differences in the amount of support force due to the height difference between the support parts in the display area and the non-display area. This leads to differences in the amount of deformation of the display panel in the display area and the non-display area after a drop, making the non-display area of ​​the display panel more susceptible to damage and affecting the uniformity of the display panel's strength.

[0030] To address the aforementioned issues, the display panel provided in this embodiment of the invention reduces the difference in support force between the display area and the non-display area by setting the difference between the distance from the top of the first support portion to the substrate and the distance from the top of the second support portion to the substrate to be less than or equal to a preset difference, thereby reducing the risk of damage.

[0031] This application provides a display panel and a display device, which will be described below in conjunction with the accompanying drawings. Figures 1 to 5 Various embodiments of the display panel and display device will be described.

[0032] Please see Figures 1 to 3 This application provides a display panel having a display area AA and a non-display area NA adjacent to the display area AA. The display panel includes: a substrate 1; a pixel definition layer 2 disposed on one side of the substrate 1, the pixel definition layer 2 including a first opening K1 disposed in the display area AA and a second opening K2 disposed in the non-display area NA; and a support layer 3 including a first support portion 31 and a second support portion 32. The first support portion 31 is disposed on the side of the pixel definition layer 2 located in the display area AA away from the substrate 1, and the first support portion 31 and the first opening K1 are adjacent to each other. The second support portion 32 is disposed on the side of the pixel definition layer 2 located in the non-display area NA away from the substrate 1, and the second support portion 32 and the second opening K2 are adjacent to each other. Along the thickness direction of the display panel, the difference between the distance from the top of the first support portion 31 on the side away from the substrate 1 to the substrate 1 and the distance from the top of the second support portion 32 on the side away from the substrate 1 to the substrate 1 is less than or equal to a preset difference.

[0033] The display panel provided in this embodiment of the invention includes a substrate 1, a pixel definition layer 2, and a support layer 3. The display area AA includes a first support portion 31 and a first opening K1 arranged adjacent to each other, and the non-display area NA includes a second support portion 32 and a second opening K2 arranged adjacent to each other. By setting the difference between the distance from the top of the first support portion 31 to the substrate and the distance from the top of the second support portion 32 to the substrate to be less than or equal to a preset difference, the difference in support force between the display area AA and the non-display area NA is reduced, thereby enhancing the strength of the display panel and ensuring that the deformation of the display area AA and the non-display area NA remains consistent after drop strength testing or actual use, thus reducing the risk of damage.

[0034] Through the inventor's research, it was discovered that by setting an opening in the pixel definition layer 2, the height of the first support portion 31 and / or the second support portion 32 can be affected. Specifically, in the prior art, the pixel definition layer 2 usually does not have an opening in the non-display area NA. Since the support layer 3 has a certain fluidity before curing or baking during the preparation of the support layer 3, the height of the second support portion 32 formed on the pixel definition layer 2 will decrease due to the flow. Therefore, in this embodiment, by setting a second opening K2 in the pixel definition layer 2 in the non-display area NA, the flow range of the second support portion 32 is limited, thereby ensuring that the difference between the distance from the top of the second support portion 32 away from the substrate 1, i.e., the second height, and the distance from the top of the first support portion 31 away from the substrate 1, i.e., the first height, is kept within a preset difference range.

[0035] It should be noted that, along the thickness direction of the display panel, the thickness of the pixel definition layer 2 located in the display area AA and the thickness of the pixel definition layer 2 located in the non-display area NA can be equal or unequal. Users can adjust the difference between the distance from the top of the first support portion 31 to the substrate 1 and the distance from the top of the second support portion 32 to the substrate 1 by adjusting the heights of the first support portion 31 and the second support portion 32, i.e., the height from the top of the first support portion 31 to the pixel definition layer 2 and the height from the second support portion 32 to the pixel definition layer 2. Optionally, since the pixel definition layer 2 located in the display area AA and the pixel definition layer 2 located in the non-display area NA are usually formed using the same process, the thickness of the pixel definition layer 2 located in the display area AA and the pixel definition layer 2 located in the non-display area NA are usually also equal.

[0036] like Figure 2As shown, when the thickness of the pixel definition layer 2 located in the display area AA is equal to the thickness of the pixel definition layer 2 located in the non-display area NA, the height of the first support part 31 is a, and the height of the second support part 32 is b. The absolute value of the difference between a and b is the preset difference. The specific value of the preset difference can be selected according to the height of the first support part 31. For example, the preset difference can be less than or equal to 10% of the height of the first support part 31 to ensure that the height difference between the first support part 31 and the second support part 32 is not too large, thereby improving the uniformity of the screen strength of the display area AA and the non-display area NA of the display panel.

[0037] In this embodiment, the support layer 3 and the pixel definition layer 2 can be made of the same material to reduce production costs. Optionally, the materials of the support layer 3 and the pixel definition layer 2 include organic resin materials. For example, the materials of the support layer 3 and the pixel definition layer 2 can be hexamethyl dimethyl ether, epoxy resin, or polyimide (PI), etc.

[0038] The first opening K1 and the second opening K2 of the pixel definition layer 2 can be formed together using the same process to reduce production costs. For example, the pixel definition layer 2 can be patterned using photolithography or laser etching to form the first opening K1 and the second opening K2. Similarly, the first support portion 31 and the second support portion 32 of the support layer 3 can also be formed together using the same process. This reduces costs and ensures that the first support portion 31 and the second support portion 32 are in the same fabrication environment, making it easier to achieve the same height for both. Specifically, the first support portion 31 and the second support portion 32 can also be formed using photolithography or laser etching. For example, the first support portion 31 and the second support portion 32 can be formed by vapor deposition using the same mask, without any particular limitation.

[0039] Optionally, the non-display area NA includes a partition area BA and an encapsulation area FA. The second support part 32 is located in the partition area BA, and encapsulation adhesive is provided in the encapsulation area FA. The encapsulation adhesive is located on the side of the second support part 32 away from the display area AA to achieve encapsulation of the display panel bezel. The encapsulation adhesive can be made of materials such as Frit (glass glue).

[0040] Optionally, at least two rows of second support portions 32 are provided in the direction from the display area AA to the non-display area NA to ensure that the second support portions 32 have sufficient support force.

[0041] In some optional embodiments, the height ratio between the first support portion 31 and the second support portion 32 along the thickness direction of the display panel ranges from 0.9 to 1.1. It is understood that the height of the first support portion 31 and the second support portion 32 specifically refers to the distance from the top of the first support portion 31 to the pixel definition layer 2 and the distance from the top of the second support portion 32 to the pixel definition layer 2 along the thickness direction of the display panel. The smaller the height difference between the first support portion 31 and the second support portion 32, the greater the support ratio between the first support portion 31 and the second support portion 32. The smaller the difference in support force, the better. Considering the influence of process errors and the fluidity of the first support part 31 and the second support part 32, the height ratio between the first support part 31 and the second support part 32 ranges from 0.9 to 1.1. For example, when the height of the first support part 31 is 20 μm, the height of the second support part 32 ranges from 18 μm to 22 μm. Optionally, the heights of the first support part 31 and the second support part 32 can be equal, that is, when the height of the first support part 31 is 20 μm, the height of the second support part 32 can also be 20 μm. Of course, the specific height values ​​of the first support part 31 and the second support part 32 mentioned above are only for illustrating the height relationship between the first support part 31 and the second support part 32, and do not represent the actual heights of the first support part 31 and the second support part 32.

[0042] Optionally, in order to make the distance from the top of the first support portion 31 to the substrate 1 equal to the distance from the top of the second support portion 32 to the substrate 1, the thickness of the pixel definition layer 2 located in the display area AA and the thickness of the pixel definition layer 2 located in the non-display area NA can be made equal. The pixel definition layer 2 located in the display area AA and the pixel definition layer 2 located in the non-display area NA can be formed in one process. During the fabrication, only the height of the first support portion 31 and the second support portion 32 needs to be controlled and adjusted to make the distance from the top of the first support portion 31 to the substrate 1 equal to the distance from the top of the second support portion 32 to the substrate 1, which reduces the difficulty of the process.

[0043] Please see Figure 2 In some optional embodiments, the pixel definition layer 2 includes a first pixel definition portion 21 for carrying the first support portion 31 and a second pixel definition portion 22 for carrying the second support portion 32, and the ratio of the distance between two adjacent first pixel definition portions 21 to the distance between two adjacent second pixel definition portions 22 is in the range of 0.9 to 1.1.

[0044] It is understandable that, since the first support portion 31 and the second support portion 32 are respectively disposed on the first pixel definition portion 21 and the second pixel definition portion 22, the distance between two adjacent first pixel definition portions 21 and the distance between two adjacent second pixel definition portions 22 will affect the setting density of the corresponding first support portion 31 and the second support portion 32 and the specific size of the corresponding first opening K1 and the second opening K2. Both the setting density of the first support portion 31 and the second support portion 32 and the specific size of the corresponding first opening K1 and the second opening K2 will affect the deformation of the display area AA and the non-display area NA of the display panel after the first support portion 31 and the second support portion 32 are subjected to drop strength test or after actual use drop. Therefore, this embodiment can reduce the setting difference of the first pixel definition portion 21 of the display area AA and the second pixel definition portion 22 of the non-display area NA by limiting the ratio of the distance between two adjacent first pixel definition portions 21 and the distance between two adjacent second pixel definition portions 22 to a range of 0.9 to 1.1.

[0045] Optionally, the distance between two adjacent first pixel defining portions 21 and the distance between two adjacent second pixel defining portions 22 are equal, so that the first pixel defining portions 21 and the second pixel defining portions 22 provide the same support effect for the first support portion 31 and the second support portion 32, respectively. Optionally, the distance between two adjacent first pixel defining portions 21 ranges from 10μm to 50μm, and the distance between two adjacent second pixel defining portions 22 also ranges from 10μm to 50μm.

[0046] In some optional embodiments, the ratio between the projected area of ​​the first pixel definition portion 21 on the substrate 1 and the projected area of ​​the second pixel definition portion 22 on the substrate 1 along the thickness direction of the display panel ranges from 0.9 to 1.1.

[0047] Through experiments conducted by the inventors, it was found that the sizes of the first pixel defining part 21 and the second pixel defining part 22 affect the flow of the first support part 31 and the second support part 32, thereby affecting their heights. Specifically, the larger the first pixel defining part 21 is, the smaller the first opening K1 becomes when the distance between two adjacent first pixel defining parts 21 is fixed, resulting in a shorter height for the first support part 31. Similarly, the larger the second pixel defining part 22 is, the smaller the second opening K2 becomes when the distance between two adjacent second pixel defining parts 22 is fixed, resulting in a shorter height for the second support part 32. Therefore, this embodiment, by limiting the projected area of ​​the first pixel defining part 21 and the second pixel defining part 22 on the substrate 1, can correspondingly limit the flow of the first support part 31 and the second support part 32, thereby ensuring that the height difference between the first support part 31 and the second support part 32 meets the requirements.

[0048] Optionally, the projected area of ​​the first pixel defining portion 21 on the substrate 1 is equal to the projected area of ​​the second pixel defining portion 22 on the substrate 1. It can be understood that the relative relationship between the projected areas of the first pixel defining portion 21 and the second pixel defining portion 22 on the substrate 1 corresponds to the height relationship between the first support portion 31 and the second support portion 32. Therefore, when the projected areas of the first pixel defining portion 21 and the second pixel defining portion 22 are equal, it is easier to achieve the requirement that the heights of the first support portion 31 and the second support portion 32 are equal.

[0049] In order to further restrict the flow of the second support portion 32 and avoid the problem that the second support portion 32 is too short relative to the first support portion 31, in some optional embodiments, the minimum distance from the second support portion 32 to the edge of the second pixel definition portion 22 corresponding to the second support portion 32 is 0μm to 5μm.

[0050] In this embodiment, the inventors experimentally determined that the greater the minimum distance between the second support portion 32 and the edge of the corresponding second pixel definition portion 22, the greater the deformation of the second support portion 32 due to flow, and its height also decreases. Therefore, it is necessary to limit the minimum distance between the second support portion 32 and the edge of the corresponding second pixel definition portion 22 to be not too large. Simultaneously, it is also necessary to prevent the second support portion 32 from flowing directly into the second opening K2. Optionally, the minimum distance between the second support portion 32 and the edge of the corresponding second pixel definition portion 22 is 5 μm.

[0051] Please see Figure 3In some optional embodiments, the arrangement of the first support portion 31 in the display area AA is the same as the arrangement of the second support portion 32 in the non-display area NA.

[0052] It should be noted that the arrangement in this embodiment includes, but is not limited to, the location, specific shape, size, etc. of the first support part 31 or the second support part 32. When the arrangement of the first support part 31 and the second support part 32 is the same, on the one hand, it is convenient to prepare the first support part 31 and the second support part 32 with the same height. On the other hand, it can also enable the first support part 31 and the second support part 32 to provide the same support force, enhance the strength of the display panel screen, and ensure that the deformation of the display area AA and the non-display area NA of the display panel remains consistent after the drop strength test or after actual use, thereby reducing the risk of damage.

[0053] Optionally, the arrangement of the first opening K1 in the display area AA and the arrangement of the second opening K2 in the non-display area NA are the same, so as to further improve the consistency of the display panel structure in the display area AA and the non-display area NA, while ensuring that the first opening K1 and the second opening K2 have the same blocking effect on the first support 31 and the second support 32 respectively, and the height difference between the second support 32 and the first support 31 can be kept within a preset difference range.

[0054] Please see Figure 4 In some optional embodiments, considering that there are usually some signal traces in the non-display area NA, the pixel definition layer 2 needs to be set specifically according to the different signals transmitted by the signal traces. In some optional embodiments, the display panel also includes a signal line layer 7, which is located in the non-display area NA and between the pixel definition layer 2 and the substrate 1. The signal line layer 7 includes low-level voltage signal lines 71, and the second opening K2 exposes at least a portion of the low-level voltage signal lines 71.

[0055] It should be noted that since the low-level voltage signal line 71, i.e. the VSS signal line, is usually connected to the cathode layer 4 to provide a low-level voltage signal to the cathode layer 4, and since the cathode layer 4 is deposited on the entire surface, the cathode layer 4 is provided in both the display area AA and the non-display area NA. Therefore, in this embodiment, by exposing at least part of the low-level voltage signal line 71 through the second opening K2, it is convenient for the low-level voltage signal line 71 to be connected to the cathode layer 4.

[0056] Specifically, the display panel also includes a cathode layer 4, which covers the pixel definition layer 2 on the side opposite to the substrate 1 and is partially located within the first opening K1 and the second opening K2. The low-level voltage signal line 71 is electrically connected to the cathode layer 4.

[0057] Optionally, the display area AA also includes an anode layer 6 and a light-emitting layer 5 stacked along the thickness direction of the display panel. The cathode layer 4 at least partially covers the side of the light-emitting layer 5 away from the substrate 1. The low-level voltage signal line 71 can be disposed in the same layer as the anode layer 6. That is, the low-level voltage signal line 71 and the anode layer 6 can be formed by the same process and use the same materials to reduce production costs.

[0058] Please see Figure 5 Optionally, the signal line layer 7 includes a high-level voltage signal line 72. Since the high-level voltage signal line 72 is not connected to the cathode layer 4 and their signals are different, the high-level voltage signal line 72 and the cathode layer 4 need to be separated by the pixel definition layer 2. That is, the second opening K2 will not expose the high-level voltage signal line 72 to avoid problems such as short circuits and signal crosstalk.

[0059] In this embodiment, the cathode layer 4 is generally made of a material with a low work function to facilitate electron injection. Additionally, it reduces heat generated during operation and extends the lifespan of the OLED device. The cathode layer 4 can be one of the following metals: silver (Ag), aluminum (Al), lithium (Li), magnesium (Mg), ytterbium (Yb), calcium (Ca), or indium (In). It can also be an alloy of the aforementioned metals, such as magnesium-silver alloy (Mg / Ag) or lithium-aluminum alloy (Li / Al). This embodiment does not impose any limitations on this.

[0060] The material of the anode layer 6 is generally a material with a high work function in order to improve the hole injection efficiency. The materials of the anode layer 6 and the signal line layer 7 can be gold (Au), platinum (Pt), titanium (Ti), silver (Ag), indium tin oxide (ITO), zinc tin oxide (IZO) or transparent conductive polymers (such as polyaniline).

[0061] The present invention also provides a display device, comprising: a display panel; the display panel is the display panel in any of the above embodiments.

[0062] Therefore, the display device provided in the embodiments of the present invention has the technical effects of the display panel in any of the above embodiments, and the explanations of the same or corresponding structures and terms as in the above embodiments will not be repeated here.

[0063] The display device provided in this application embodiment can be applied to mobile phones, or to any electronic product with display function, including but not limited to the following categories: televisions, laptops, desktop monitors, tablets, digital cameras, smart bracelets, smart glasses, vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. This application embodiment does not make any special limitations on these.

[0064] The above are merely specific embodiments of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

[0065] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

Claims

1. A display panel, characterized in that, The display panel includes a display area and a non-display area adjacent to the display area, the non-display area including a partition area and a packaging area, and the display panel includes: substrate; A pixel definition layer is disposed on one side of the substrate, the pixel definition layer including a first opening in the display area and a second opening in the non-display area; A support layer includes a first support portion and a second support portion. The first support portion is disposed on the side of the pixel definition layer in the display area away from the substrate, and the first support portion and the first opening are adjacent to each other. The second support portion is disposed on the side of the pixel definition layer in the non-display area away from the substrate, and the second support portion and the second opening are adjacent to each other. The arrangement of the first support portion in the display area is the same as the arrangement of the second support portion in the non-display area. The second support portion is disposed in the partition area. Encapsulating adhesive is provided in the encapsulation area. The encapsulating adhesive is disposed on the side of the second support portion away from the display area. Along the thickness direction of the display panel, the second support portion and the second opening do not overlap. Along the thickness direction of the display panel, the difference between the distance from the top of the first support portion away from the substrate to the substrate and the distance from the top of the second support portion away from the substrate to the substrate is less than or equal to a preset difference. The pixel definition layer includes a first pixel definition portion for supporting the first support portion and a second pixel definition portion for supporting the second support portion. Along the thickness direction of the display panel, the ratio between the projected area of ​​the first pixel definition portion on the substrate and the projected area of ​​the second pixel definition portion on the substrate ranges from 0.9 to 1.

1. The distance between two adjacent first pixel definition portions and the distance between two adjacent second pixel definition portions are equal. A signal line layer is located in the non-display area and between the pixel definition layer and the substrate. The signal line layer includes low-level voltage signal lines and high-level voltage signal lines. The second opening exposes at least a portion of the low-level voltage signal lines and does not expose the high-level voltage signal lines. The display area also includes an anode layer, a light-emitting layer, and a cathode layer stacked along the thickness direction of the display panel. The cathode layer at least partially covers the side of the light-emitting layer away from the substrate. The low-level voltage signal line is disposed in the same layer as the anode layer and is electrically connected to the cathode layer.

2. The display panel according to claim 1, characterized in that, Along the thickness direction of the display panel, the height ratio of the first support portion and the second support portion ranges from 0.9 to 1.

1.

3. The display panel according to claim 2, characterized in that, The height of the first support part is equal to the height of the second support part.

4. The display panel according to claim 1, characterized in that, Along the thickness direction of the display panel, the thickness of the pixel definition layer located in the display area is equal to the thickness of the pixel definition layer located in the non-display area.

5. The display panel according to claim 1, characterized in that, The projected area of ​​the first pixel definition portion on the substrate is equal to the projected area of ​​the second pixel definition portion on the substrate.

6. The display panel according to claim 1, characterized in that, The minimum distance from the second support portion to the edge of the second pixel definition portion corresponding to the second support portion is 0μm~5μm.

7. The display panel according to claim 1, characterized in that, The support layer and the pixel definition layer are made of the same material.

8. The display panel according to claim 1, characterized in that, The materials of the support layer and the pixel definition layer include organic resin materials.

9. A display device, characterized in that, include: The display panel is the display panel according to any one of claims 1 to 8.

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