Display panel and display device

Abstract

The utility model provides a display panel and a display device, and relates to the technical field of display, and the display panel comprises a display area, a substrate, and a plurality of drain electrode power lines and a plurality of data line groups located in the display area. The drain electrode power lines are located on one side of the substrate and extend in the first direction, the drain electrode power lines are arranged at intervals in the second direction, and the first direction intersects with the second direction. The plurality of data line groups are located on one side of the substrate, the data line groups and the drain electrode power line are located on the same side of the substrate, and the plurality of data line groups extend in the first direction and are arranged at intervals in the second direction. In the second direction, the drain power lines and the data line sets are alternately arranged at intervals, each drain power line comprises a main line body extending in the first direction and at least one auxiliary line, the auxiliary lines are located on at least one side of the main line body in the second direction and connected with the main line body, and gaps exist between the auxiliary lines and the main line body. The display panel provided by the utility model is beneficial to improving the use performance of the display device.

Description

Technical Field

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

[0002] Currently, organic light-emitting diode (OLED) display panels have advantages such as high image quality, energy saving, small thickness and wide application range, and are widely used in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers.

[0003] However, the performance and manufacturing process of current display devices need to be improved. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and a display device to improve the performance of the display device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] In a first aspect, a display panel is provided, including a display area, the display panel including a plurality of drain power lines and a plurality of data line groups. The plurality of drain power lines are located in the display area, extending along a first direction and spaced apart along a second direction, the first direction intersecting the second direction. The plurality of data line groups are located in the display area, extending along the first direction and spaced apart along the second direction. Along the second direction, the drain power lines and data line groups are spaced apart and alternately arranged. Each drain power line includes a main body extending along the first direction and at least one auxiliary line, the auxiliary line being located on at least one side of the main body along the second direction, connected to the main body, and having a gap between the auxiliary line and the main body.

[0007] Through the above technical solution, the display panel provided in this application can have an auxiliary line set on one side of the drain power line, which is beneficial to balancing the etching load effect of the data line group, reducing the damage to the data line group, and thus improving the performance of the display device.

[0008] In some embodiments, the data line group includes a first data line, an intermediate trace, and a second data line spaced apart along a second direction. The intermediate trace is a source power line or a fan-out line within the display area. The absolute value of the difference between the width of the auxiliary line and the first or second data line is less than or equal to 0.5 mils.

[0009] In some implementations, along the second direction, the size of the gap is less than or equal to the spacing between the data line group and the drain power line.

[0010] In some implementations, along the second direction, the size of the gap is less than or equal to the spacing between the first data line and the intermediate trace, and / or, along the second direction, the size of the gap is less than or equal to the spacing between the second data line and the intermediate trace.

[0011] In some implementations, the drain power line and the data line group are arranged on the same layer.

[0012] In some implementations, the first data line, the intermediate trace, and the second data line are arranged on the same layer.

[0013] In some embodiments, the auxiliary line is connected to the main line body by a connecting part located at one end of the auxiliary line along the first direction, or the connecting part is located in the middle of the auxiliary line.

[0014] In some implementations, the drain power line includes multiple auxiliary lines distributed on both sides of the main body in the second direction;

[0015] And / or, the main body is provided with a plurality of auxiliary lines on at least one side in the second direction, and the plurality of auxiliary lines are spaced apart along the first direction.

[0016] In some embodiments, the display panel provided in this application further includes a substrate and a top layer metal located on one side of the substrate, with the drain power line located on the top layer metal and the data line group located on the top layer metal; wherein, the top layer metal includes a fourth metal layer or a fifth metal layer.

[0017] Optionally, the display panel provided in this application further includes a light-emitting layer, which is located on the side of the top metal facing away from the substrate.

[0018] Optionally, the display panel provided in this application further includes a first electrode layer, which includes a plurality of first electrodes electrically connected to the top metal. The first electrodes are located on the side of the top metal away from the substrate, and the light-emitting layer is located on the side of the first electrodes away from the substrate.

[0019] Optionally, the display panel provided in this application further includes a second electrode layer, which includes a plurality of second electrodes located on the side of the light-emitting layer away from the substrate.

[0020] Optionally, the display panel provided in this application further includes a planarization layer, which covers the top metal layer, and the first electrode is located on the side of the planarization layer away from the substrate.

[0021] Optionally, the display panel provided in this application further includes a pixel definition layer, which is located on the side of the first electrode layer away from the substrate. The pixel definition layer has a pixel opening, and at least a portion of the light-emitting layer is disposed within the pixel opening.

[0022] Optionally, the display panel provided in this application further includes an isolation structure located on the side of the pixel definition layer away from the substrate. The isolation structure encloses and forms an isolation opening, and the orthographic projection of the second electrode and the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate.

[0023] Secondly, this application provides a display device including the display panel of the above-described embodiments. The display device provided by this application has the same or similar technical effects as the above-described display panel, which will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a schematic diagram of the structure of the display panel provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the drain power line and data line assembly.

[0027] Figure 3 for Figure 2 A magnified view of a portion of point B in the middle;

[0028] Figure 4 for Figure 1 A magnified view of a portion of point A in the middle;

[0029] Figure 5 For along Figure 4 One of the schematic diagrams of the cross-sectional structure of the CC line;

[0030] Figure 6 For along Figure 4 Schematic diagram of the cross-sectional structure of the CC line (Part 2).

[0031] The following are the labeling elements in the figure:

[0032] 100-Display panel; 1-Substrate; 2-Top metal layer; 3-Planarization layer; 4-First electrode; 5-Pixel definition layer; 6-Isolation structure; 7-Light-emitting layer; 8-Second electrode; 9-First encapsulation layer; 11-Main line; 12-Auxiliary line; 101-First distance; 102-Second distance; 103-Third distance; 104-Fourth distance; 20-Data line group; 21-First data line; 22-Intermediate trace; 23-Second data line. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] With technological advancements and increasing consumer demand for high-quality experiences, the existing AMOLED (Active-matrix Organic Light-emitting Diode) product market has broad prospects. Consumers are increasingly favoring display devices with wide viewing angles, excellent visual experiences, and high portability, such as mobile phones. Due to the requirements of high pixel density (Pixels Per Inch, PPI) products, the line width and spacing of the display panel 100 need to be compressed, especially the data signal lines, which will affect the display effect to some extent.

[0038] For example, Fanout In AA (FIAA) technology compresses the width and spacing of the traces.

[0039] Please see Figure 1This application provides a display panel 100, which can be an organic light-emitting diode (OLED) display panel 100 or a micro light-emitting diode (Micro LED / μLED) display panel 100.

[0040] The display panel 100 includes a substrate 1, which includes a display area AA and a non-display area NA, with the non-display area NA surrounding at least a portion of the display area AA.

[0041] Please see Figure 2 and Figure 3 The display panel 100 provided in this embodiment further includes multiple drain power lines and multiple data line groups 20. The multiple drain power (VDD) lines are located in the display area AA and on one side of the substrate 1, and the multiple drain power lines run along a first direction (e.g., ...). Figure 2 The X-direction extends along the second direction (e.g., the X-direction in the middle), and multiple drain power lines extend ... Figure 2 The data lines are arranged at intervals along the Y direction, and the first direction intersects the second direction. Multiple data line groups 20 are located in the display area AA, and are located on one side of the substrate 1. The data line groups 20 and the drain power lines are located on the same side of the substrate 1. The multiple data line groups 20 extend along the first direction and are arranged at intervals along the second direction. Along the second direction, the drain power lines and data line groups 20 are arranged alternately and at intervals. The drain power lines include a main line body 11 extending along the first direction and at least one auxiliary line 12. The auxiliary line 12 is located on at least one side of the main line body 11 along the second direction, and is connected to the main line body 11. A gap exists between the auxiliary line 12 and the main line body 11.

[0042] Through the above technical solution, the display panel 100 provided in this application can be provided with an auxiliary line 12 on one side of the drain power line. By adding the auxiliary line 12, the probability of damage to the data line group 20 can be reduced to a certain extent without changing the manufacturing process. This is beneficial to balancing the etching load effect of the data line group 20, reducing the damage to the data line group 20, and thus improving the performance of the display device.

[0043] In some embodiments, the data line group 20 includes a first data line 21, an intermediate trace 22, and a second data line 23 spaced apart along a second direction. The intermediate trace 22 is a voltage source supply (VSS) line or a fanout in display area (FIAA) line. The absolute value of the difference between the width of the auxiliary line 12 and the width of the first data line 21 or the second data line 23 is less than or equal to 0.5 mil.

[0044] Optionally, the absolute value of the difference between the width of the auxiliary line 12 and the first data line 21 is less than or equal to 0.5 mils. The absolute value of the difference between the width of the auxiliary line 12 and the first data line 21 can be 0 mils, 0.1 mils, 0.2 mils, 0.3 mils, 0.4 mils, 0.5 mils, etc.

[0045] Optionally, the absolute value of the difference between the width of the auxiliary line 12 and the second data line 23 is less than or equal to 0.5 mils. The absolute value of the difference between the width of the auxiliary line 12 and the second data line 23 can be 0 mils, 0.1 mils, 0.2 mils, 0.3 mils, 0.4 mils, 0.5 mils, etc.

[0046] It is understandable that the drain power line and data line group 20 can be fabricated using an etching process. By adding the auxiliary line 12, the probability of damage to the data line group 20 can be reduced to some extent without changing the etching process. In this way, during the fabrication of the drain power line and data line group 20, the auxiliary line 12 can balance the etching load effect of the data line group 20.

[0047] In some embodiments, along the second direction, the size of the gap is less than or equal to the distance between the data line group 20 and the drain power line. Optionally, the size of the gap can be a first distance 101. It is understood that when there is insufficient wiring space, the first distance 101 can be reduced to prioritize ensuring the distance between the data line group 20 and the drain power line, as well as the distance between the data lines within the data line group 20 (the distance between the first data line 21 and the intermediate trace 22, and the distance between the second data line 23 and the intermediate trace 22). This helps to ensure the performance of the data line group 20. The distance between the data line group 20 and the drain power line can be a second distance 102.

[0048] Optionally, along the second direction, the size of the gap is less than or equal to the spacing between the first data line 21 and the intermediate trace 22 (third distance 103).

[0049] Optionally, along the second direction, the size of the gap is less than or equal to the spacing between the second data line 23 and the intermediate trace 22 (fourth distance 104).

[0050] Optionally, the drain power line and data line group 20 are arranged on the same layer.

[0051] Optionally, the first data line 21, the intermediate trace 22, and the second data line 23 are arranged on the same layer.

[0052] In some embodiments, the auxiliary line 12 is connected to the main line body 11 by a connecting part, which is located at one end of the auxiliary line 12 along a first direction.

[0053] In other embodiments, the auxiliary line 12 is connected to the main line body 11 by a connecting part located in the middle of the auxiliary line 12.

[0054] It is understandable that the position of the connection between the auxiliary line 12 and the main line body 11 can be set as needed, as long as there is a gap between the auxiliary line 12 and the main line body 11.

[0055] In some embodiments, the drain power line includes a plurality of auxiliary lines 12, which are distributed on both sides of the main line body 11 in the second direction. In this way, the drain power line can balance the etching load effect of the data line group 20 on both sides, which helps to reduce damage to the data line group 20 and thus improves the display effect.

[0056] In some embodiments, the main body 11 is provided with a plurality of auxiliary lines 12 on at least one side in the second direction, and the plurality of auxiliary lines 12 are spaced apart along the first direction. This increases the number of auxiliary lines 12, which can further help reduce damage to the data cable group 20, thereby improving the display effect.

[0057] Please refer to the following: Figure 4 , Figure 5 and Figure 6 In some embodiments, the display panel 100 provided in this application also includes a substrate 1 and a top metal 2 located on one side of the substrate 1, with the drain power line located on the top metal 2 and the data line group 20 located on the top metal 2; wherein, the top metal 2 includes a fourth metal layer or a fifth metal layer.

[0058] Optionally, the display panel 100 provided in this embodiment further includes a light-emitting layer 7, which is located on the side of the top metal 2 facing away from the substrate 1. Optionally, the light-emitting layer 7 may include a plurality of sub-pixels. The plurality of sub-pixels may include a plurality of first sub-pixels, second sub-pixels, and third sub-pixels with different emission colors.

[0059] Please see Figure 5 Optionally, the light-emitting layer 7 can be fabricated using fine metal mask (FMM) technology.

[0060] Optionally, the display panel 100 provided in this application embodiment further includes a first electrode layer, which includes a plurality of first electrodes 4 electrically connected to the top metal 2. The first electrodes 4 are located on the side of the top metal 2 away from the substrate 1, and the light-emitting layer 7 is located on the side of the first electrodes 4 away from the substrate 1.

[0061] Optionally, the display panel 100 provided in this application embodiment further includes a second electrode layer, which includes a plurality of second electrodes 8, and the second electrodes 8 are located on the side of the light-emitting layer 7 away from the substrate 1.

[0062] Optionally, the display panel 100 provided in this application embodiment further includes a planarization layer 3, which covers the top metal 2, and the first electrode 4 is located on the side of the planarization layer 3 away from the substrate 1.

[0063] Optionally, the display panel 100 provided in this application embodiment further includes a pixel definition layer 5, which is located on the side of the first electrode layer away from the substrate 1. The pixel definition layer 5 has a pixel opening, and at least a portion of the light-emitting layer 7 is disposed within the pixel opening.

[0064] Please see Figure 6 Optionally, the display panel 100 provided in this application embodiment further includes an isolation structure 6. The isolation structure 6 is located on the side of the pixel definition layer 5 away from the substrate 1. The isolation structure 6 encloses and forms an isolation opening. The orthographic projection of the second electrode 8 and the pixel opening on the substrate 1 is located within the orthographic projection of the isolation opening on the substrate 1.

[0065] The display panel 100 provided in this application embodiment can use the isolation structure 6 to prepare the light-emitting unit. That is, the display panel 100 provided in this application can use the fine metal mask (FMM) technology to realize the patterning of the light-emitting unit, which eliminates the limitations of traditional OLED process on display size, resolution and other screen performance, and has the advantages of high performance, full-size display and agile delivery.

[0066] Patents CN118251982A, CN115666161A, CN116648095A, CN117062489A, CN118678742A, CN118785761A, CN115224220A, CN118678729A, CN118660529A, and CN118660589A describe relevant content regarding the technology of eliminating fine metal masks, and are provided for reference.

[0067] The display device provided in this application embodiment also includes a driving device layer (not shown in the figure), which is located between the substrate 1 and the top metal 2.

[0068] Please refer to the following: Figure 5 and Figure 6 Optionally, the display panel 100 provided in this application embodiment further includes a first encapsulation layer 9, which is located on the side of the second electrode layer away from the substrate 1, to encapsulate the second electrode layer and the light-emitting layer 7.

[0069] Optionally, the material of the first encapsulation layer 9 includes inorganic materials.

[0070] Optionally, the material of the first encapsulation layer 9 includes one of silicon oxide and silicon nitride.

[0071] Optionally, the display panel 100 provided in this application embodiment may further include a second encapsulation layer and a third encapsulation layer (not shown in the figure), wherein the second encapsulation layer is located on the side of the first encapsulation layer 9 away from the substrate 1, and the third encapsulation layer is located on the side of the second encapsulation layer away from the substrate 1.

[0072] Alternatively, the first encapsulation layer 9 can be an inorganic encapsulation layer formed by chemical vapor deposition (CVD) and patterning.

[0073] Alternatively, the second encapsulation layer can be made by inkjet printing (IJP).

[0074] Alternatively, the third encapsulation layer can be an inorganic encapsulation layer formed by chemical vapor deposition (CVD).

[0075] Optionally, the display panel 100 provided in this application may also include other film layers, which are located on the side of the third encapsulation layer opposite to the substrate 1. These other film layers may include polarizing films, optically clear adhesive (OCA), etc.

[0076] This application also provides a display device, including the display panel 100 of the above embodiments. The display device provided in this application has the same or similar technical effects as the display panel 100 described above, and will not be repeated here.

[0077] Optionally, the display device can be a mobile phone, television, tablet computer, laptop computer, desktop computer, in-vehicle display terminal, wearable device, advertising display device, or other products.

[0078] The above are merely specific embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A display panel, comprising a display area, characterized in that, The display panel includes: Multiple drain power lines are located in the display area. The multiple drain power lines extend along a first direction and are spaced apart along a second direction. The first direction intersects the second direction. Multiple data cable groups are located in the display area, the multiple data cable groups extend along the first direction and are spaced apart along the second direction; Along the second direction, the drain power line is spaced apart from and alternately arranged with the data line group. The drain power line includes a main body extending along the first direction and at least one auxiliary line. The auxiliary line is located on at least one side of the main body along the second direction. The auxiliary line is connected to the main body and there is a gap between the auxiliary line and the main body.

2. The display panel as described in claim 1, characterized in that, The data line group includes a first data line, an intermediate trace, and a second data line spaced apart along the second direction. The intermediate trace is a source power line or a fan-out line within the display area. The absolute value of the difference between the width of the auxiliary line and the width of the first data line or the second data line is less than or equal to 0.5 mils.

3. The display panel as described in claim 1 or 2, characterized in that, Along the second direction, the size of the gap is less than or equal to the distance between the data line group and the drain power line.

4. The display panel as described in claim 2, characterized in that, Along the second direction, the size of the gap is less than or equal to the spacing between the first data line and the intermediate trace, and / or, along the second direction, the size of the gap is less than or equal to the spacing between the second data line and the intermediate trace.

5. The display panel as described in claim 1 or 2, characterized in that, The drain power line is arranged on the same layer as the data line group.

6. The display panel as described in claim 2, characterized in that, The first data line, the intermediate trace, and the second data line are arranged on the same layer.

7. The display panel as described in claim 1, characterized in that, The auxiliary line is connected to the main line body through a connecting part, which is located at one end of the auxiliary line along the first direction, or the connecting part is located in the middle of the auxiliary line.

8. The display panel as described in claim 1, characterized in that, The drain power line includes a plurality of auxiliary lines, which are distributed on both sides of the main body in the second direction; And / or, the main body is provided with a plurality of auxiliary lines on at least one side in the second direction, and the plurality of auxiliary lines are spaced apart along the first direction.

9. The display panel as claimed in claim 1, characterized in that, The display panel further includes a substrate and a top layer metal located on one side of the substrate, the drain power line is located on the top layer metal, and the data line group is located on the top layer metal; wherein, the top layer metal includes a fourth metal layer or a fifth metal layer; Preferably, the display panel further includes a light-emitting layer, which is located on the side of the top metal facing away from the substrate; Preferably, the display panel further includes a first electrode layer, the first electrode layer including a plurality of first electrodes electrically connected to the top metal, the first electrodes being located on the side of the top metal away from the substrate, and the light-emitting layer being located on the side of the first electrodes away from the substrate; Preferably, the display panel further includes a second electrode layer, the second electrode layer including a plurality of second electrodes, the second electrodes being located on the side of the light-emitting layer opposite to the substrate; Preferably, the display panel further includes a planarization layer covering the top metal layer, and the first electrode is located on the side of the planarization layer opposite to the substrate. Preferably, the display panel further includes a pixel definition layer, which is located on the side of the first electrode layer away from the substrate. The pixel definition layer has pixel openings, and at least a portion of the light-emitting layer is disposed within the pixel openings. Preferably, the display panel further includes an isolation structure located on the side of the pixel definition layer opposite to the substrate. The isolation structure forms an isolation opening, and the orthographic projection of the second electrode and the pixel opening on the substrate is located within the orthographic projection of the isolation opening on the substrate.

10. A display device, characterized in that, Includes the display panel as described in any one of claims 1 to 9.

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