Display panel and display device

Abstract

The invention relates to a display panel and a display device, the display panel comprises a first display area and a second display area, and the transmittance of the first display area is greater than that of the second display area; the display panel comprises a cathode patterned material layer and a cathode layer which are arranged on one side, far away from the substrate, of the pixel definition layer, and the cathode patterned material layer is arranged in the first display area; the sub-pixels are correspondingly arranged in the pixel openings; the cathode layer comprises a plurality of cathode patterns, the cathode patterned material layer comprises a plurality of material patterns arranged at intervals, the plurality of material patterns comprise a plurality of first patterns and a plurality of second patterns, and the shapes of the first patterns and the second patterns are different; the orthographic projection of the cathode pattern on the substrate covers the orthographic projection of the corresponding pixel opening on the substrate, and the orthographic projection of the first pattern and the orthographic projection of the second pattern on the substrate and the orthographic projection of the pixel opening on the substrate are arranged at intervals. The problem that the transmittance in the display area corresponding to the camera is low can be solved.

Description

Technical Field

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

[0002] With the development of display technology, the under-screen camera solution is also one of the solutions for full-screen displays. The under-screen camera solution is to place the camera under the display screen. When used, the camera receives light passing through the display screen for imaging. In order to improve the imaging effect of the under-screen camera, it is necessary to ensure that the display area corresponding to the camera has a large transmittance. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device, aiming to solve the problem of low transmittance in the display area corresponding to the camera in the related art.

[0004] In a first aspect, an embodiment of the present application provides a display panel, the display panel comprising a plurality of sub-pixels, the display panel comprising a first display area and a second display area, the transmittance of the first display area being greater than the transmittance of the second display area;

[0005] The display panel comprises a substrate, a pixel definition layer disposed on one side of the substrate, a cathode patterned material layer and a cathode layer disposed on a side of the pixel definition layer away from the substrate, wherein the cathode patterned material layer is disposed in the first display area;

[0006] The pixel definition layer includes a plurality of pixel definition structures and pixel openings surrounded by the pixel definition structures, and the sub-pixels are correspondingly arranged in the pixel openings;

[0007] The cathode layer includes a plurality of cathode patterns, the cathode patterned material layer includes a plurality of material patterns arranged at intervals, the plurality of material patterns include a plurality of first patterns and a plurality of second patterns, and the shapes of the first patterns and the second patterns are different;

[0008] The orthographic projection of the cathode pattern on the substrate covers the orthographic projection of the corresponding pixel opening on the substrate, and the orthographic projections of the first pattern and the second pattern on the substrate are both spaced apart from the orthographic projection of the pixel opening on the substrate.

[0009] In a second aspect, an embodiment of the present application further provides a display device, which includes the display panel provided in the first aspect.

[0010] In an embodiment of the present application, a cathode patterned material layer is provided on a side of the pixel definition layer away from the substrate, the cathode patterned material layer includes a plurality of material patterns arranged at intervals, the plurality of material patterns include a plurality of first patterns and a plurality of second patterns, and the shapes of the first pattern and the second pattern are different, so that the transmittance in the display area corresponding to the sensor such as the camera can be improved. On the one hand, the cathode patterned material layer can remove part of the cathode layer material in the first display area, reducing or avoiding the blocking or absorption of light by the cathode layer material in the first display area; on the other hand, the shapes of the first pattern and the second pattern are different, the first pattern and the second pattern can adapt to the shapes of different pixel openings, the material pattern can adapt to the shapes of different parts between the pixel openings, the area of ​​the cathode patterned material layer can be increased, the cathode layer material in the first display area can be removed over a larger area, and the blocking or absorption of light by the cathode layer material in the first display area can be better reduced, thereby better improving the transmittance in the first display area. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 A schematic top view of a display panel provided in some embodiments of the present application.

[0013] Figure 2 A schematic diagram of a first cross-sectional structure of a display panel provided in some embodiments of the present application.

[0014] Figure 3 A schematic diagram of a second cross-sectional structure of a display panel provided in some embodiments of the present application.

[0015] Figure 4 A schematic diagram of a third cross-sectional structure of a display panel provided in some embodiments of the present application.

[0016] Figure 5 A first partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0017] Figure 6 A second partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0018] Figure 7 A third partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0019] Figure 8 A fourth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0020] Fig. 9 A fifth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0021] Fig.10 A sixth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0022] Fig.11 A seventh partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0023] Fig.12 An eighth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0024] Fig.13 A ninth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0025] Fig.14 The tenth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0026] Fig.15 A schematic diagram of a display device provided in some embodiments of the present application. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] 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 can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0030] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0031] 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 only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0032] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0033] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0034] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0035] It is necessary to provide a display panel and a display device to solve the problem of low transmittance in the display area corresponding to the camera in the related art. The inventor found that the reason for the above phenomenon is that the electrode (such as the cathode) in the display area corresponding to the camera blocks or absorbs part of the light.

[0036] Based on the above technical problems, the inventors have found that by setting a cathode patterned material layer on the side of the pixel definition layer away from the substrate, the cathode patterned material layer includes a plurality of material patterns arranged at intervals, the plurality of material patterns include a plurality of first patterns and a plurality of second patterns, and the shapes of the first pattern and the second pattern are different, the transmittance in the display area corresponding to the camera can be improved. On the one hand, the cathode patterned material layer can remove part of the electrode (for example, part of the cathode) in the display area corresponding to the camera, reducing the blocking or absorption of light by the electrode (for example, the cathode) in the display area corresponding to the camera; on the other hand, the shapes of the first pattern and the second pattern are different, the first pattern and the second pattern can adapt to the shape of the pixel opening, and the cathode patterned material layer can remove part of the electrode (for example, part of the cathode) in the display area corresponding to the camera with a larger area, better reducing the blocking or absorption of light by the electrode (for example, the cathode) in the display area corresponding to the camera, thereby better improving the transmittance in the display area corresponding to the camera.

[0037] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be described clearly and completely below in conjunction with the drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Figure 1 A schematic top view of a display panel provided in some embodiments of the present application. Figure 2 A schematic diagram of a first cross-sectional structure of a display panel provided in some embodiments of the present application. Figure 3 A schematic diagram of a second cross-sectional structure of a display panel provided in some embodiments of the present application. Figure 4 A schematic diagram of a third cross-sectional structure of a display panel provided in some embodiments of the present application. Figures 2 to 4 All indicated Figure 1 sectional structure of the first display area AA1.

[0039] Figure 5 A first partial top view schematic diagram of a display panel provided in some embodiments of the present application. Figure 6 A second partial top view schematic diagram of a display panel provided in some embodiments of the present application. Figure 7 A third partial top view schematic diagram of a display panel provided in some embodiments of the present application. Figures 5 to 7 The pixel arrangement and the pattern of the cathode patterned material layer are consistent, the difference is that different numbering is used to facilitate the explanation of the inventive spirit of the present application.

[0040] Figure 8A fourth partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig. 9 A fifth partial top view schematic diagram of a display panel provided in some embodiments of the present application.

[0041] Fig.10 A sixth partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig.11 A seventh partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig.12 An eighth partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig.13 A ninth partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig.14 The tenth partial top view schematic diagram of a display panel provided in some embodiments of the present application. Fig.11 for Fig.10 In order to facilitate the explanation of the invention spirit of the present application, compared with Fig.10 , Fig.12 and Fig.13 The pattern of the cathode patterning material layer is not shown.

[0042] See also Figures 1 to 14 .

[0043] First, see Figures 1 to 7 The present application provides a display panel 100, the display panel 100 includes a plurality of sub-pixels SP, the display panel 100 includes a first display area AA1 and a second display area AA2, the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2; the display panel 100 includes a substrate 11, a pixel definition layer 13 disposed on one side of the substrate 11, a cathode patterned material layer 50 and a cathode layer 40 disposed on a side of the pixel definition layer 13 away from the substrate 11, the cathode patterned material layer 50 is disposed in the first display area AA1; the pixel definition layer 13 includes a plurality of pixel definition structures 131 and the pixel definition structure 131 The surrounding pixel opening 132, the sub-pixel SP is arranged corresponding to the pixel opening 132; the cathode layer 40 includes a plurality of cathode patterns 41, the cathode patterned material layer 50 includes a plurality of material patterns 51 arranged at intervals, the plurality of material patterns 51 include a plurality of first patterns 511 and a plurality of second patterns 512, and the shapes of the first patterns 511 and the second patterns 512 are different; the orthographic projection of the cathode pattern 41 on the substrate 11 covers the orthographic projection of the corresponding pixel opening 132 on the substrate 11, and the orthographic projections of the first pattern 511 and the second pattern 512 on the substrate 11 are both arranged at intervals from the orthographic projection of the pixel opening 132 on the substrate 11.

[0044] For example, the substrate 11 may be a glass substrate or a flexible substrate. For example, the material of the substrate 11 includes polyimide, which is not limited here.

[0045] For example, the display panel 100 may include an array composite film layer located between the substrate 11 and the pixel definition layer 13 , and the array composite film layer may include a plurality of driving circuits and a plurality of driving traces.

[0046] By way of example, the display panel 100 may include a display area AA and a non-display area BB surrounding the display area AA, the display area AA may include a first display area AA1 and a second display area AA2, the first display area AA1 is an area corresponding to sensors such as a camera or a fingerprint sensor, the second display area AA2 is an area for normal display, the transmittance of the first display area AA1 is greater than the transmittance of the second display area AA2, so that more light reaches sensors such as cameras.

[0047] For example, in some embodiments, a transition display area may be further provided between the first display area AA1 and the second display area AA2, the transmittance of the first display area AA1 is greater than that of the transition display area, and the transmittance of the transition display area is greater than that of the second display area AA2.

[0048] For example, the cathode patterning material layer 50 is also referred to as CPM (Cathode Patterning Material, cathode selection material).

[0049] For example, the cathode patterning material layer 50 can be used for patterning the cathode layer 40 to obtain a plurality of cathode patterns 41 . The material of the cathode patterning material layer 50 can be a high-fluorine compound, which has poor compatibility with the material of the cathode layer 40 .

[0050] For example, during the manufacturing process of the display panel 100, a cathode patterned material layer 50 may be formed first, and the cathode patterned material layer 50 includes a plurality of material patterns 51 arranged at intervals, and the material patterns 51 expose the pixel opening 132. Then, the cathode layer 40 is formed. Due to the presence of the plurality of material patterns 51 of the cathode patterned material layer 50, it is difficult for the material of the cathode layer 40 to adhere to the material pattern 51. Therefore, the material pattern 51 may not have any material of the cathode layer 40 adhered to it, or only a small amount of material of the cathode layer 40 may be adhered to it. Since the transmittance of the cathode patterned material layer 50 is very high, and there is very little or no material of the cathode layer 40 on the material pattern 51, light can be well transmitted through the material pattern 51. Therefore, this structure can effectively improve the transmittance of the first display area AA1.

[0051] For example, in some embodiments, Figure 3As shown, the material of the cathode layer 40 is not attached to the multiple material patterns 51 of the cathode patterned material layer 50 at all, that is, the orthographic projection of the cathode pattern 41 on the substrate 11 does not overlap with the orthographic projection of the material pattern 51 on the substrate 11 .

[0052] For example, in some embodiments, Figure 4 As shown, a small amount of material of the cathode layer 40 is attached to the edges of multiple material patterns 51 of the cathode patterned material layer 50, that is, the positive projection of the cathode pattern 41 on the substrate 11 overlaps with the edge portion of the positive projection of the material pattern 51 on the substrate 11, and the thickness of the cathode pattern 41 at the overlapping portion with the material pattern 51 is less than the thickness at the pixel opening 132.

[0053] For example, the orthographic projections of the first pattern 511 and the second pattern 512 on the substrate 11 are spaced apart from the orthographic projection of the pixel opening 132 on the substrate 11 , which can prevent the cathode pattern 41 from being thinned or missing at the pixel opening 132 .

[0054] For example, the plurality of cathode patterns 41 are connected as a whole so that the driving chip can provide the plurality of cathode patterns 41 with electrical signals. Therefore, the plurality of material patterns 51 of the cathode patterned material layer 50 are arranged at intervals.

[0055] For example, the first pattern 511 and the second pattern 512 have different shapes, so that the material pattern 51 can adapt to the shapes of different pixel openings 132 and the shapes of the parts between different pixel openings 132 .

[0056] For example, the first pattern 511 and the second pattern 512 may have different shapes, may have different areas, may have different sizes, may have different graphic shapes, or may have the same shapes after rotation.

[0057] It should be noted that the first display area AA1 may be an area corresponding to a camera sensor, the first display area AA1 may be an area corresponding to a fingerprint recognition sensor, or the first display area AA1 may be an area corresponding to other sensors.

[0058] In an embodiment of the present application, a cathode patterned material layer 50 is arranged on the side of the pixel definition layer 13 away from the substrate 11, and the cathode patterned material layer 50 includes a plurality of material patterns 51 arranged at intervals, and the plurality of material patterns 51 include a plurality of first patterns 511 and a plurality of second patterns 512, and the shapes of the first patterns 511 and the second patterns 512 are different, thereby improving the transmittance in the display area corresponding to sensors such as cameras. On the one hand, the cathode patterned material layer 50 can remove part of the material of the cathode layer 40 in the first display area AA1, thereby reducing or avoiding the blocking or absorption of light by the material of the cathode layer 40 in the first display area AA1; on the other hand, the shapes of the first pattern 511 and the second pattern 512 are different, and the first pattern 511 and the second pattern 512 can adapt to the shapes of different pixel openings 132, and the material pattern 51 can adapt to the shapes of the parts between different pixel openings 132, which can increase the area of ​​the cathode patterned material layer 50, and can remove a larger area of ​​the material of the cathode layer 40 in the first display area AA1, thereby better reducing the blocking or absorption of light by the material of the cathode layer 40 in the first display area AA1, thereby better improving the transmittance in the first display area AA1.

[0059] In some embodiments, the plurality of sub-pixels SP include a first color sub-pixel SP1, a second color sub-pixel SP2, and a third color sub-pixel SP3; in the first display area AA1: two first color sub-pixels SP1 and one second color sub-pixel SP2 are respectively located at three vertex positions of the first virtual triangle S1, and one second color sub-pixel SP2 is located on the first side S101 between the two first color sub-pixels SP1 in the first virtual triangle S1; the angle in the first virtual triangle S1 opposite to the first side S101 is the first angle α; two second color sub-pixels SP2 and one third color sub-pixel SP3 are respectively located at three vertex positions of the second virtual triangle S2, and one third color sub-pixel SP3 is located on the second side S102 between the two second color sub-pixels SP2 in the second virtual triangle S2; the angle in the second virtual triangle S2 opposite to the second side S102 is the second angle β; the direction of the second angle β is opposite to the direction of the first angle α;

[0060] In the first direction Y, the first virtual triangle S1 and the second virtual triangle S2 are arranged alternately, and in the second direction X, the first virtual triangle S1 and the second virtual triangle S2 are arranged alternately, and the first direction Y and the second direction X intersect each other.

[0061] like Figure 5 and Figure 6 As shown, Figure 5 and Figure 6 The same, except that Figure 6 The first virtual triangle S1 and the second virtual triangle S2 are illustrated by triangular dotted lines.

[0062] For example, the first virtual triangle S1 is not a pattern on the display panel 100, but the first virtual triangle S1 actually exists. For example, the first virtual triangle S1 is a triangle formed by the lines between the centers of the corresponding two first color sub-pixels SP1 and a corresponding second color sub-pixel SP2. The first virtual triangle S1 includes a first side S101, which connects the centers of the corresponding two first color sub-pixels SP1, and passes through the center of a corresponding second color sub-pixel SP2. The angle of the first virtual triangle S1 opposite to the first side S101 is the first angle α.

[0063] For example, the second virtual triangle S2 is not a pattern on the display panel 100, but the second virtual triangle S2 actually exists. For example, the second virtual triangle S2 is a triangle formed by the lines between the centers of the corresponding two second color sub-pixels SP2 and a corresponding third color sub-pixel SP3. The second virtual triangle S2 includes a second side S102, which connects the centers of the corresponding two second color sub-pixels SP2, and passes through the center of a corresponding third color sub-pixel SP3. The angle of the second virtual triangle S2 opposite to the second side S102 is the second angle β.

[0064] For example, in some embodiments, the arrangement of the sub-pixels SP in the second display area AA2 may be the same as the arrangement of the sub-pixels in the first display area AA1. In some embodiments, the number of sub-pixels SP per unit area in the first display area AA1 may be less than the number of sub-pixels per unit area in the second display area AA2. In some embodiments, the density of sub-pixels per unit area in the first display area AA1 may be less than the density of sub-pixels per unit area in the second display area AA2, thereby improving the transmittance of the first display area AA1. However, the arrangement of the sub-pixels in the second display area AA2 is not limited thereto.

[0065] For example, the first direction Y and the second direction X are perpendicular to each other.

[0066] In some embodiments, Figure 5 and Figure 6As shown, the multiple first patterns 511 include a first sub-pattern 511a corresponding to the first virtual triangle S1, and a second sub-pattern 511b corresponding to the second virtual triangle S2; the orthographic projection of the first sub-pattern 511a on the substrate 11 at least partially overlaps with the orthographic projection of the first virtual triangle S1 on the substrate 11, and the orthographic projection of the first sub-pattern 511a on the substrate 11 is spaced apart from the orthographic projection of the second virtual triangle S2 on the substrate 11; the orthographic projection of the second sub-pattern 511b on the substrate 11 at least partially overlaps with the orthographic projection of the second virtual triangle S2 on the substrate 11, and the orthographic projection of the second sub-pattern 511b on the substrate 11 is spaced apart from the orthographic projection of the first virtual triangle S1 on the substrate 11.

[0067] For example, the orthographic projection of the first sub-pattern 511a on the substrate 11 at least partially overlaps with the orthographic projection of the first virtual triangle S1 on the substrate 11. For example, the first virtual triangle S1 is a triangle formed by the lines between the centers of the corresponding two first color sub-pixels SP1 and one corresponding second color sub-pixel SP2. The orthographic projection of the first virtual triangle S1 on the substrate 11 can be understood as the orthographic projection of the triangle formed by the lines between the centers of these sub-pixels on the substrate.

[0068] For example, the orthographic projection of the second sub-pattern 511b on the substrate 11 at least partially overlaps with the orthographic projection of the second virtual triangle S2 on the substrate 11. For example, the second virtual triangle S2 is a triangle formed by the lines between the centers of the corresponding two second-color sub-pixels SP2 and a corresponding third-color sub-pixel SP3. The orthographic projection of the second virtual triangle S2 on the substrate 11 can be understood as the orthographic projection of a triangle formed by the lines between the centers of these sub-pixels on the substrate.

[0069] For example, the first sub-pattern 511a and the second sub-pattern 511b match the arrangement of sub-pixels, which can increase the area of ​​the first pattern 511 and reduce the area of ​​the cathode layer 40, thereby reducing the blocking or absorption of light by the material of the cathode layer 40 in the first display area AA1, thereby better improving the transmittance in the first display area AA1.

[0070] In some embodiments, Figure 5 and Figure 6 As shown, the orthographic projection of the first sub-pattern 511a on the substrate 11 intersects with the orthographic projections of the two sides of the first virtual triangle S1 that sandwich the first angle α on the substrate 11; the orthographic projection of the second sub-pattern 511b on the substrate 11 intersects with the orthographic projections of the two sides of the second virtual triangle S2 that sandwich the second angle β on the substrate 11.

[0071] For example, in the first virtual triangle S1 , the side sandwiching the first angle α is the third side S103 ; in the second virtual triangle S2 , the side sandwiching the second angle β is the fourth side S104 .

[0072] For example, the orthographic projection of the first sub-pattern 511a on the substrate 11 intersects with the orthographic projections of the two sides of the first virtual triangle S1 that sandwich the first angle α on the substrate 11, that is, the orthographic projection of the first sub-pattern 511a on the substrate 11 intersects with the orthographic projections of the two third sides S103 of the first virtual triangle S1 on the substrate 11. This can increase the area of ​​the first sub-pattern 511a and reduce the area of ​​the cathode layer 40 in the display area corresponding to sensors such as cameras, thereby reducing the blocking or absorption of light by the material of the cathode layer 40, thereby better improving the transmittance in the first display area AA1.

[0073] For example, the orthographic projection of the second sub-pattern 511b on the substrate 11 intersects with the orthographic projections of the two sides of the second virtual triangle S2 that sandwich the second angle β on the substrate 11, that is, the orthographic projection of the second sub-pattern 511b on the substrate 11 intersects with the orthographic projections of the two fourth sides S104 in the second virtual triangle S2 on the substrate 11. This can increase the area of ​​the second sub-pattern 511b and reduce the area of ​​the cathode layer 40 in the display area corresponding to sensors such as cameras, thereby reducing the blocking or absorption of light by the material of the cathode layer 40, thereby better improving the transmittance in the first display area AA1.

[0074] In some embodiments, Figure 5 and Figure 6 As shown, the orthographic projection of the second pattern 512 on the substrate 11 is located between the orthographic projections of two adjacent first virtual triangles S1 on the substrate 11 and the orthographic projections of two adjacent second virtual triangles S2 on the substrate 11 .

[0075] For example, the second pattern 512 may reduce or remove the material of the cathode layer 40 between two adjacent first virtual triangles S1 and two adjacent second virtual triangles S2 .

[0076] In some embodiments, Figure 8 and Fig. 9 As shown, the cathode patterned material layer 50 further includes a plurality of connection patterns 52 , at least two adjacent material patterns 51 are connected via the connection pattern 52 , and the orthographic projection of the connection pattern 52 on the substrate 11 is spaced apart from the orthographic projection of the pixel opening 132 on the substrate 11 .

[0077] For example, the connection pattern 52 connects adjacent material patterns 51, which can further increase the area of ​​the cathode patterned material layer 50, further reduce the area of ​​the cathode layer 40 in the first display area AA1, and thus further reduce the blocking or absorption of light by the material of the cathode layer 40, thereby better improving the transmittance in the first display area AA1.

[0078] In some embodiments, Figure 7 , Figure 8 and Fig. 9 As shown, in the first virtual triangle S1, the side sandwiching the first angle α is the third side S103; in the second virtual triangle S2, the side sandwiching the second angle β is the fourth side S104;

[0079] In the first direction Y, a third side S103 of a first virtual triangle S1 is adjacent to a fourth side S104 of an adjacent second virtual triangle S2, and the first virtual triangle S1 and the second virtual triangle S2 are arranged into a first sub-pixel group SPZ1, and a plurality of first sub-pixel groups SPZ1 are arranged in sequence in the first direction Y;

[0080] In the second direction X, a third side S103 of a first virtual triangle S1 is adjacent to a fourth side S104 of an adjacent second virtual triangle S2, the first virtual triangle S1 and the second virtual triangle S2 are arranged into a second sub-pixel group SPZ2, and a plurality of second sub-pixel groups SPZ2 are sequentially arranged in the second direction X;

[0081] At least part of the first sub-pattern 511a and the second sub-pattern 511b in the first sub-pixel group SPZ1 are connected by a connection pattern 52, and the connection pattern 52 is located between the third side S103 and the fourth side S104 adjacently disposed in the first sub-pixel group SPZ1; or / and,

[0082] At least part of the first sub-pattern 511a and the second sub-pattern 511b in the second sub-pixel group SPZ2 are connected by the connection pattern 52, and the connection pattern 52 is located between the third side S103 and the fourth side S104 that are adjacently disposed in the second sub-pixel group SPZ2.

[0083] For example, in some embodiments, Figure 7 , Figure 8 and Fig. 9As shown, the third side S103 and the fourth side S104 in the second sub-pixel group SPZ2 are adjacently arranged, and there is no sub-pixel SP in the relative area between the third side S103 and the fourth side S104 in the second sub-pixel group SPZ2, and the connecting pattern 52 is connected between the adjacently arranged third side S103 and the fourth side S104 in the second sub-pixel group SPZ2, which can greatly increase the area of ​​the cathode patterned material layer 50, thereby greatly reducing the area of ​​the cathode layer 40.

[0084] For example, in some other embodiments, Figure 8 and Fig. 9 The difference in the example is that the third side S103 and the fourth side S104 in the first sub-pixel group SPZ1 are adjacent to each other, and there is no sub-pixel SP in the relative area between the third side S103 and the fourth side S104 in the first sub-pixel group SPZ1, and the connecting pattern 52 is connected between the adjacently arranged third side S103 and the fourth side S104 in the first sub-pixel group SPZ1, which can greatly increase the area of ​​the cathode patterned material layer 50, thereby greatly reducing the area of ​​the cathode layer 40.

[0085] In some embodiments, in the first sub-pixel group SPZ1 or the second sub-pixel group SPZ2, the first sub-pattern 511a, the second sub-pattern 511b and the connecting pattern 52 are an integrated structure, and the first sub-pattern 511a, the second sub-pattern 511b and the connecting pattern 52 are in an "S" shape or a "Z" shape.

[0086] For example, in the manufacturing process of the display panel 100, in the process of forming the cathode patterned material layer 50, the same process forms the first sub-pattern 511a, the second sub-pattern 511b and the connecting pattern 52. The first sub-pattern 511a, the second sub-pattern 511b and the connecting pattern 52 are in an "S" shape or a "Z" shape, which can well match the arrangement and shape of the sub-pixels SP, and can well match the arrangement and shape of the pixel openings 132.

[0087] In some embodiments, Fig.10 , Fig.11 and Fig.12 As shown, the multiple cathode patterns 41 include multiple cathode electrodes 411 and multiple connecting electrodes 412, the positive projection of the cathode electrode 411 on the substrate 11 covers the positive projection of the corresponding pixel opening 132 on the substrate 11, and the connecting electrode 412 connects two adjacent cathode electrodes 411; one cathode electrode 411 is connected to the adjacent cathode electrode 411 through at least one connecting electrode 412.

[0088] By way of example, the sub-pixel SP may include a light-emitting device including an anode electrode 121, a light-emitting functional layer 31 and a cathode electrode 411, the light-emitting functional layer 31 may include a light-emitting layer EML, and one or more of a hole injection layer HIL, a hole transport layer HTL, an electron injection layer EIL, an electron transport layer ETL, a hole blocking layer HBL and an electron blocking layer EBL.

[0089] For example, different cathode electrodes 411 are electrically connected via the connecting electrode 412 , so that the driving chip provides electrical signals to the different cathode electrodes 411 .

[0090] In some embodiments, Figures 10 to 14 As shown, the plurality of connection electrodes 412 include a plurality of first connection electrodes 412a; the cathode electrode 411 located on the first side S101 of the first virtual triangle S1 is connected through the corresponding first connection electrode 412a, and the cathode electrode 411 located on the first side S101 of the first virtual triangle S1 and the first connection electrode 412a form a first main line 41Z;

[0091] The cathode electrode 411 on the second side S102 of the second virtual triangle S2 is connected through the corresponding first connection electrode 412a, and the cathode electrode 411 on the second side S102 of the second virtual triangle S2 and the first connection electrode 412a form a second main line 42Z;

[0092] A third direction is defined, the first angle α and the second angle β are alternately arranged along the third direction W, and the third direction W is located between the first direction Y and the second direction X;

[0093] A plurality of first main lines 41Z and a plurality of second main lines 42Z alternately arranged in a third direction W are connected through a plurality of first connecting electrodes 412a. The first main lines 41Z and the second main lines 42Z alternately arranged in the third direction W, and the first connecting electrodes 412a connecting the alternately arranged first main lines 41Z and the second main lines 42Z constitute a cathode main line 40Z.

[0094] For example, Fig.11 As shown, the first main line 41Z includes a cathode electrode 411 and a first connection electrode 412 a located on a first side S101 of the first virtual triangle S1 .

[0095] For example, Fig.11 As shown, the second main line 42Z includes a cathode electrode 411 and a first connection electrode 412 a located on the second side S102 of the second virtual triangle S2 .

[0096] For example, Fig.12As shown, the cathode main line 40Z includes a plurality of first main lines 41Z and a plurality of second main lines 42Z alternately arranged in the third direction W, and a first connection electrode 412a connecting the alternately arranged first main lines 41Z and second main lines 42Z.

[0097] For example, the cathode main line 40Z may provide an electrical signal through either end thereof.

[0098] In some embodiments, the cathode main line 40Z is zigzag or wavy.

[0099] For example, the cathode main line 40Z is in a sawtooth or wavy shape, and the cathode main line 40Z can well match the arrangement and shape of the sub-pixels SP, and the cathode main line 40Z can well match the arrangement and shape of the pixel opening 132 .

[0100] In some embodiments, Fig.10 and Fig.13 As shown, the multiple connecting electrodes 412 also include multiple second connecting electrodes 412b; the sub-pixel SP includes a corresponding cathode electrode 411, and the cathode electrodes 411 of the sub-pixels SP located at the first angle α and the second angle β are respectively connected to adjacent cathode main lines 40Z through at least one second connecting electrode 412b; the orthographic projection of the second connecting electrode 412b on the substrate 11 is located between the orthographic projection of the adjacent first pattern 511 on the substrate 11 and the orthographic projection of the second pattern 512 on the substrate 11.

[0101] For example, Fig.10 and Fig.13 As shown, the second connecting electrode 412b connected between the cathode electrode 411 of the sub-pixel SP located at the first angle α and the second angle β and the adjacent cathode main line 40Z has its orthographic projection on the substrate 11 located between the orthographic projection of the adjacent first pattern 511 on the substrate 11 and the orthographic projection of the second pattern 512 on the substrate 11.

[0102] For example, Fig.10 and Fig.13 As shown, the cathode electrodes 411 of the sub-pixels SP located at the first angle α and the second angle β are respectively connected to the adjacent cathode main line 40Z through at least one second connecting electrode 412b, so that the cathode electrodes 411 of the sub-pixels SP located at the first angle α and the second angle β can provide electrical signals through the adjacent cathode main line 40Z.

[0103] In some embodiments, Fig.10 and Fig.13As shown, the multiple connecting electrodes 412 also include multiple third connecting electrodes 412c; the cathode electrode 411 of the sub-pixel SP located at the first angle α is connected to the cathode electrode 411 of the adjacent sub-pixel SP located at the second angle β through the corresponding third connecting electrode 412c; the orthographic projection of the third connecting electrode 412c on the substrate 11 is located between the orthographic projection of the adjacent first sub-pattern 511a on the substrate 11 and the orthographic projection of the second sub-pattern 511b on the substrate 11; the two adjacent cathode main lines are connected through the second connecting electrode 412b and the third connecting electrode 412c.

[0104] For example, Fig.10 and Fig.13 As shown, the third connecting electrode 412c connected to the cathode electrode 411 of the sub-pixel SP located at the first angle α and the cathode electrode 411 of the adjacent sub-pixel SP located at the second angle β has its orthographic projection on the substrate 11 located between the orthographic projection of the adjacent first sub-pattern 511a on the substrate 11 and the orthographic projection of the second sub-pattern 511b on the substrate 11.

[0105] For example, the cathode electrode 411 of the sub-pixel SP located at the first angle α is connected to the cathode electrode 411 of the adjacent sub-pixel SP located at the second angle β through the corresponding third connecting electrode 412c, so that more cathode electrodes 411 are electrically connected to each other, which can improve the uniformity of electrical signals on different cathode electrodes 411.

[0106] By way of example, in some embodiments, the cathode electrodes 411 of the sub-pixels SP located at the first angle α and the second angle β are respectively connected to the adjacent cathode main lines 40Z through at least one second connecting electrode 412b; the cathode electrode 411 of the sub-pixel SP located at the first angle α is connected to the cathode electrode 411 of the adjacent sub-pixel SP located at the second angle β through the corresponding third connecting electrode 412c; so that the adjacent cathode main lines 40Z are electrically connected to each other through the second connecting electrode 412b and the third connecting electrode 412c, which can better improve the uniformity of the electrical signals on different cathode electrodes 411.

[0107] For example, Fig.10 and Fig.13 As shown, the cathode patterns 41 are connected in a grid shape.

[0108] In some embodiments, the width of the second connection electrode 412b is smaller than the width of the first connection electrode 412a; or / and the width of the third connection electrode 412c is smaller than the width of the first connection electrode 412a.

[0109] For example, the first connecting electrode 412a is located in the cathode main line 40Z, and the cathode main line 40Z plays a major role in transmitting electrical signals. The first connecting electrode 412a has a larger width, which can reduce the resistance of the cathode main line 40Z, increase the speed of electrical signal transmission in the cathode main line 40Z, and improve the uniformity of electrical signals.

[0110] By way of example, the cathode electrode 411 between two adjacent cathode main lines 40Z can be connected to the adjacent cathode main line 40Z through the second connecting electrode 412b and / or the third connecting electrode 412c so as to provide an electrical signal to the cathode electrode 411 between the two adjacent cathode main lines 40Z. Therefore, the width of the second connecting electrode 412b and the third connecting electrode 412c can be set smaller.

[0111] For example, the width of the second connection electrode 412b is smaller than the width of the first connection electrode 412a; or / and, the width of the third connection electrode 412c is smaller than the width of the first connection electrode 412a. On the one hand, the width of the first connection electrode 412a is larger, which can reduce the resistance of the cathode main line 40Z, and can increase the transmission speed of the electrical signal in the cathode main line 40Z and improve the uniformity of the electrical signal. On the other hand, the width of the second connection electrode 412b and the third connection electrode 412c can be set to be smaller, which can reduce the area of ​​the cathode layer 40 and improve the transmittance of the first display area AA1.

[0112] For example, in some embodiments, in the extension direction perpendicular to the first connection electrode 412a, the width of the first connection electrode 412a is smaller than the width of the cathode electrode 411, which can reduce the area of ​​the cathode layer 40 and improve the transmittance of the first display area AA1.

[0113] In some embodiments, the distance between the first pattern 511 and the adjacent cathode pattern 41 is greater than or equal to 6 microns, which can avoid the shadow effect of the mask causing the first pattern 511 to interfere with the adjacent cathode pattern 41. For example, when a mask is used for vapor deposition to form the cathode patterned material layer 50, the shadow effect is avoided to cause the cathode patterned material layer 50 to increase in area, and the cathode patterned material layer 50 is avoided from occupying too much area of ​​the cathode pattern 41.

[0114] In some embodiments, the distance between two adjacent material patterns 51 is greater than or equal to 15 microns. The shadow effect of the photomask can be avoided so that the two adjacent material patterns 51 are connected, and the cathode pattern 41 area between the two adjacent material patterns 51 is avoided to be occupied. For example, when the cathode patterned material layer 50 is formed by evaporation using a photomask, the shadow effect is avoided to increase the area of ​​the two adjacent material patterns 51, and the two adjacent material patterns 51 are avoided to occupy too much area of ​​the cathode pattern 41, and the cathode pattern 41 between the two adjacent material patterns 51 is avoided to be disconnected.

[0115] In some embodiments, Figure 5 As shown, the inner angle θ of the material pattern 51 is any value from 80 to 100 degrees, or from 125 to 145 degrees, which can match the inner angle setting of the fine metal mask (FMM) and reduce the difficulty of manufacturing the fine metal mask (FMM).

[0116] Illustratively, the internal angle θ of the material pattern 51 is in the range of 80 to 100 degrees, for example, the internal angle θ of the material pattern 51 is any value among 80 degrees, 85 degrees, 90 degrees, 95 degrees and 100 degrees.

[0117] For example, the internal angle θ of the material pattern 51 is in the range of 125 degrees to 145 degrees. For example, the internal angle θ of the material pattern 51 is any value of 125 degrees, 130 degrees, 135 degrees, 140 degrees, and 145 degrees.

[0118] It should be noted that, in some other embodiments, Fig. 9 and Fig.10 In the example, the restriction on the inner angle θ of the material pattern 51 is cancelled. The inner angle θ of the material pattern 51 is any angle. The material pattern 51 can well match the arrangement and shape of the sub-pixel SP. The material pattern 51 can well match the arrangement and shape of the pixel opening 132.

[0119] See also Fig.15 , Fig.15 A schematic diagram of a display device provided in some embodiments of the present application.

[0120] On the second aspect, based on the same application concept, the present application also provides a display device 200, the display device 200 includes any one of the display panels 100 described above, or the display device 200 includes a display panel 100 that combines any several of the features described above.

[0121] For example, the display device 200 also has the beneficial effects of the display panel 100 in the above embodiment. The similarities can be understood by referring to the above explanation of the display panel 100 and will not be described in detail below.

[0122] For example, the display device 200 provided in the embodiment of the present application can be Fig.15 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, industrial control equipment, medical display screens, touch interactive terminals, etc. The embodiments of the present application do not specifically limit this.

[0123] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0124] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: The display panel includes a plurality of sub-pixels, the display panel includes a first display area and a second display area, and the transmittance of the first display area is greater than the transmittance of the second display area; The display panel comprises a substrate, a pixel definition layer disposed on one side of the substrate, a cathode patterned material layer and a cathode layer disposed on a side of the pixel definition layer away from the substrate, wherein the cathode patterned material layer is disposed in the first display area; The pixel definition layer includes a plurality of pixel definition structures and pixel openings surrounded by the pixel definition structures, and the sub-pixels are correspondingly arranged in the pixel openings; The cathode layer includes a plurality of cathode patterns, the cathode patterned material layer includes a plurality of material patterns arranged at intervals, the plurality of material patterns include a plurality of first patterns and a plurality of second patterns, and the shapes of the first patterns and the second patterns are different; The orthographic projection of the cathode pattern on the substrate covers the orthographic projection of the corresponding pixel opening on the substrate, and the orthographic projections of the first pattern and the second pattern on the substrate are both spaced apart from the orthographic projection of the pixel opening on the substrate.

2. The display panel according to claim 1, characterized in that: The plurality of sub-pixels include a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel; In the first display area: Two of the first color sub-pixels and one of the second color sub-pixels are located at three vertex positions of a first virtual triangle respectively, and one of the second color sub-pixels is located on a first side between two of the first color sub-pixels in the first virtual triangle; an angle in the first virtual triangle opposite to the first side is a first angle; Two of the second color sub-pixels and one of the third color sub-pixels are respectively located at three vertex positions of a second virtual triangle, and one of the third color sub-pixels is located on a second side between two of the second color sub-pixels in the second virtual triangle; an angle in the second virtual triangle opposite to the second side is a second angle; and a direction of the second angle is opposite to that of the first angle; In a first direction, the first virtual triangles and the second virtual triangles are arranged alternately, and in a second direction, the first virtual triangles and the second virtual triangles are arranged alternately, and the first direction and the second direction intersect each other.

3. The display panel according to claim 2, characterized in that: The plurality of first patterns include a first sub-pattern corresponding to the first virtual triangle, and a second sub-pattern corresponding to the second virtual triangle; The orthographic projection of the first sub-pattern on the substrate at least partially overlaps with the orthographic projection of the first virtual triangle on the substrate, and the orthographic projection of the first sub-pattern on the substrate and the orthographic projection of the second virtual triangle on the substrate are arranged at intervals; The orthographic projection of the second sub-pattern on the substrate at least partially overlaps with the orthographic projection of the second virtual triangle on the substrate, and the orthographic projection of the second sub-pattern on the substrate is spaced apart from the orthographic projection of the first virtual triangle on the substrate.

4. The display panel according to claim 3, characterized in that: The orthographic projection of the first sub-pattern on the substrate intersects with the orthographic projections of two sides of the first virtual triangle sandwiching the first angle on the substrate; The orthographic projection of the second sub-pattern on the substrate intersects with the orthographic projections of two sides of the second virtual triangle sandwiching the second angle on the substrate.

5. The display panel according to claim 3, characterized in that: The orthographic projection of the second pattern on the substrate is located between the orthographic projections of two adjacent first virtual triangles on the substrate and the orthographic projections of two adjacent second virtual triangles on the substrate.

6. The display panel according to claim 5, characterized in that: The cathode patterned material layer further includes a plurality of connection patterns, at least two adjacent material patterns are connected via the connection patterns, and the orthographic projection of the connection pattern on the substrate is spaced apart from the orthographic projection of the pixel opening on the substrate.

7. The display panel according to claim 6, characterized in that: In the first virtual triangle, the side sandwiching the first angle is set as the third side; In the second virtual triangle, the side sandwiching the second angle is a fourth side; In the first direction, the third side of a first virtual triangle is adjacent to the fourth side of an adjacent second virtual triangle, the first virtual triangle and the second virtual triangle are arranged into a first sub-pixel group, and the first sub-pixel groups are arranged in sequence in the first direction; In the second direction, the third side of a first virtual triangle is adjacent to the fourth side of an adjacent second virtual triangle, the first virtual triangle and the second virtual triangle are arranged into a second sub-pixel group, and the second sub-pixel groups are arranged in sequence in the second direction; At least part of the first sub-pattern and the second sub-pattern in the first sub-pixel group are connected by the connection pattern, and the connection pattern is located between the third side and the fourth side that are adjacently arranged in the first sub-pixel group; or / and, At least a portion of the first sub-pattern and the second sub-pattern in the second sub-pixel group are connected via the connection pattern, and the connection pattern is located between the third side and the fourth side that are adjacently disposed in the second sub-pixel group.

8. The display panel according to claim 7, characterized in that: In the first sub-pixel group or the second sub-pixel group, the first sub-pattern, the second sub-pattern and the connection pattern are an integrated structure, and the first sub-pattern, the second sub-pattern and the connection pattern are in an "S" shape or a "Z" shape.

9. The display panel according to claim 5, characterized in that: The plurality of cathode patterns include a plurality of cathode electrodes and a plurality of connecting electrodes, the positive projection of the cathode electrode on the substrate covers the positive projection of the corresponding pixel opening on the substrate, and the connecting electrode connects two adjacent cathode electrodes; One of the cathode electrodes is connected to an adjacent cathode electrode via at least one of the connecting electrodes.

10. The display panel according to claim 9, characterized in that: The plurality of connecting electrodes include a plurality of first connecting electrodes; The cathode electrodes located on the first side of the first virtual triangle are connected via the corresponding first connecting electrodes, and the cathode electrodes located on the first side of the first virtual triangle and the first connecting electrodes form a first main line; The cathode electrodes located on the second side of the second virtual triangle are connected via the corresponding first connecting electrodes, and the cathode electrodes located on the second side of the second virtual triangle and the first connecting electrodes form a second main line; defining a third direction, wherein the first angles and the second angles are alternately arranged along the third direction, and the third direction is located between the first direction and the second direction; A plurality of the first main lines and a plurality of the second main lines alternately arranged in the third direction are connected through a plurality of the first connecting electrodes, and the first main lines and the second main lines alternately arranged in the third direction and the first connecting electrodes connecting the alternately arranged first main lines and the second main lines constitute cathode main lines.

11. The display panel according to claim 10, characterized in that: The cathode main line is in a sawtooth or wavy shape.

12. The display panel according to claim 10, characterized in that: The plurality of connecting electrodes further comprises a plurality of second connecting electrodes; The sub-pixel comprises the corresponding cathode electrode, and the cathode electrodes of the sub-pixels located at the first corner and the second corner are respectively connected to the adjacent cathode main lines through at least one second connecting electrode; The orthographic projection of the second connecting electrode on the substrate is located between the orthographic projection of the adjacent first pattern on the substrate and the orthographic projection of the second pattern on the substrate.

13. The display panel according to claim 12, characterized in that: The plurality of connecting electrodes further include a plurality of third connecting electrodes; The cathode electrode of the sub-pixel located at the first corner is connected to the cathode electrode of the adjacent sub-pixel located at the second corner through the corresponding third connection electrode; The orthographic projection of the third connecting electrode on the substrate is located between the orthographic projection of the adjacent first sub-pattern on the substrate and the orthographic projection of the second sub-pattern on the substrate; Two adjacent cathode main lines are connected through the second connecting electrode and the third connecting electrode.

14. The display panel according to claim 13, characterized in that: The width of the second connecting electrode is smaller than the width of the first connecting electrode; or / and, A width of the third connection electrode is smaller than a width of the first connection electrode.

15. The display panel according to claim 1, characterized in that: At least one of the following conditions is met: The distance between the first pattern and the adjacent cathode pattern is greater than or equal to 6 micrometers; The distance between two adjacent material patterns is greater than or equal to 15 microns; The internal angle of the material pattern is any value from 80 to 100 degrees, or from 125 to 145 degrees.

16. A display device, characterized in that: A display panel comprising any one of claims 1 to 15.

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