Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel is provided with a first display area and a second display area. The display panel comprises a substrate; a pixel unit, wherein the pixel unit comprises a plurality of sub-pixels; the partition structure is arranged on one side of the substrate, a plurality of partition openings are defined by the partition structure, the partition openings comprise first openings located in the first display area and second openings located in the second display area, and the sub-pixels are arranged in the first openings and the second openings respectively; the plurality of sub-pixels comprise a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel in the first display area is smaller than the distance between the centers of the first sub-pixel and the second sub-pixel in the second display area. According to the display panel, the first display area and the second display area adopt different PPIs, so that the manufacturing cost of the display panel can be reduced.

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] In recent years, OLED (Organic Light-Emitting Diode) has attracted widespread attention due to its huge application market in the display field. Compared with other display technologies, OLED modules have many advantages, such as wide viewing angle, fast response speed, no need for backlighting, and flexible display.

[0003] Some display devices in the related art have problems, which limit the development of technology. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device, aiming to reduce the manufacturing cost of a display panel having a main display area and a sub-display area.

[0005] According to one aspect of the present application, a display panel is provided. The display panel has a first display area and a second display area, and the display panel includes: a substrate; a pixel unit, which is arranged on the substrate, and the pixel unit includes a plurality of sub-pixels; a partition structure, which is arranged on one side of the substrate, and the partition structure defines a plurality of partition openings, the partition openings include a first opening located in the first display area and a second opening located in the second display area, and the sub-pixels are arranged in the first opening and the second opening respectively; wherein the plurality of sub-pixels include a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel located in the first display area is smaller than the distance between the centers of the first sub-pixel and the second sub-pixel located in the second display area.

[0006] According to the display panel in the embodiment of the present application, there is a first display area and a second display area, wherein the plurality of sub-pixels in the pixel unit include a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel in the first display area is less than the distance between the centers of the first sub-pixel and the second sub-pixel in the second display area. Thus, at least one of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 is distributed more densely than the corresponding sub-pixel of the same color in the second display area 102, so that the PPI of the first display area is greater than the PPI of the second display area. When the display panel is used, the first display area can be used as the main display area for displaying more important information, and the second display area can be used as the secondary display area for displaying secondary auxiliary information. In the display panel in the embodiment of the present application, the first display area and the second display area use different PPIs, which is conducive to reducing the manufacturing cost of the display panel.

[0007] In some embodiments, the multiple sub-pixels also include a third sub-pixel; and a distance between the centers of the first sub-pixel and the third sub-pixel in the first display area is smaller than a distance between the centers of the first sub-pixel and the third sub-pixel in the second display area.

[0008] In some embodiments, a distance between centers of the second sub-pixel and the third sub-pixel located in the first display area is smaller than a distance between centers of the second sub-pixel and the third sub-pixel located in the second display area.

[0009] In some embodiments, in the first display area, there is a first spacing between the first opening where the first sub-pixel is disposed and the first opening where the second sub-pixel is disposed; in the second display area, there is a second spacing between the second opening where the first sub-pixel is disposed and the second opening where the second sub-pixel is disposed; the first spacing is smaller than the second spacing.

[0010] In some embodiments, in the first display area, there is a third spacing between the first opening where the first sub-pixel is disposed and the first opening where the third sub-pixel is disposed; in the second display area, there is a fourth spacing between the second opening where the first sub-pixel is disposed and the second opening where the third sub-pixel is disposed; the third spacing is smaller than the fourth spacing.

[0011] In some embodiments, in the first display area, there is a fifth spacing between the first opening where the second sub-pixel is disposed and the first opening where the third sub-pixel is disposed; in the second display area, there is a sixth spacing between the second opening where the second sub-pixel is disposed and the second opening where the third sub-pixel is disposed; the fifth spacing is smaller than the sixth spacing.

[0012] In some embodiments, the area of ​​the first opening in which the first sub-pixel is provided is less than or equal to the area of ​​the second opening in which the first sub-pixel is provided; and / or the area of ​​the first opening in which the second sub-pixel is provided is less than or equal to the area of ​​the second opening in which the second sub-pixel is provided; and / or the area of ​​the first opening in which the third sub-pixel is provided is less than or equal to the area of ​​the second opening in which the third sub-pixel is provided.

[0013] In some embodiments, each of the sub-pixels includes a first electrode portion, a light-emitting functional portion, and a second electrode portion, wherein the light-emitting functional portion is disposed on a side of the first electrode portion away from the substrate, and the second electrode portion is disposed on a side of the light-emitting functional portion away from the substrate.

[0014] In some embodiments, the display panel further includes a pixel definition layer, the pixel definition layer and the partition structure are disposed on the same side of the substrate, the pixel definition layer has a plurality of pixel definition openings, and the light-emitting functional portion is at least partially located within the pixel definition openings.

[0015] In some embodiments, the partition structure includes a conductive material, and the second electrode portion is electrically connected to the partition structure.

[0016] In some embodiments, the first openings are arranged in a one-to-one correspondence with the pixel definition openings located in the first display area, and the orthographic projections of the pixel definition openings located in the first display area on the substrate are located within the orthographic projections of the corresponding first openings on the substrate; the second openings are arranged in a one-to-one correspondence with the pixel definition openings located in the second display area, and the orthographic projections of the pixel definition openings located in the second display area on the substrate are located within the orthographic projections of the corresponding second openings on the substrate.

[0017] In some embodiments, a first distance K1 exists between a boundary of an orthographic projection of the pixel-defined opening located in the first display area on the substrate and a boundary of an orthographic projection of the corresponding first opening on the substrate; a second distance K2 exists between a boundary of an orthographic projection of the pixel-defined opening located in the second display area on the substrate and a boundary of an orthographic projection of the corresponding second opening on the substrate; wherein, K1=K2.

[0018] In some embodiments, the partition structure includes an insulator and a blocking portion, the blocking portion is located on the side of the insulator facing away from the substrate, the top surface of the insulator is located within the orthographic projection of the substrate and the bottom surface of the blocking portion is located within the orthographic projection of the substrate; the insulator includes a conductive material, and the second electrode portion is electrically connected to the insulator.

[0019] In some embodiments, the partition structure also includes a bearing portion, which is located on a side of the insulator close to the substrate; the bottom surface of the insulator is located within the orthographic projection of the substrate and the top surface of the bearing portion is within the orthographic projection of the substrate; the bearing portion includes a conductive material, and the second electrode portion is electrically connected to the bearing portion.

[0020] In some embodiments, the second electrode portion covers a portion of a top surface and at least a portion of a side surface of the carrying portion.

[0021] In some embodiments, the second display area is disposed around at least a portion of the first display area.

[0022] In some embodiments, the second display area is in the shape of a closed or unclosed ring;

[0023] In some embodiments, the first display area is circular in shape.

[0024] According to another aspect of the present application, a display panel is provided. The display panel has a first display area and a second display area, and the display panel includes: a substrate; a pixel unit, which is arranged on the substrate, and the pixel unit includes a plurality of sub-pixels; a partition structure, which is arranged on one side of the substrate, and the partition structure defines a plurality of partition openings, and the partition openings include a first opening located in the first display area and a second opening located in the second display area, and the sub-pixels are arranged in the first opening and the second opening respectively; wherein the plurality of sub-pixels include a first sub-pixel, and the distance between the centers of two adjacent first sub-pixels located in the first display area is smaller than the distance between the centers of two adjacent first sub-pixels located in the second display area.

[0025] According to another aspect of the present application, a display panel is provided. The display panel has a first display area and a second display area, and includes: a substrate; a pixel unit, which is arranged on the substrate, and the pixel unit includes a plurality of sub-pixels; wherein the plurality of sub-pixels include a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel located in the first display area is smaller than the distance between the centers of the first sub-pixel and the second sub-pixel located in the second display area.

[0026] According to another aspect of the present application, a display device is provided, comprising the display panel in any one of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of a display panel in an embodiment of the present application;

[0028] Figure 2 is a cross-sectional schematic diagram of a first display area in one embodiment of the present application;

[0029] Figure 3 is a schematic cross-sectional view of a second display area in one embodiment of the present application;

[0030] Figure 4 is a schematic top view of a first display area of ​​a display panel in an embodiment of the present application;

[0031] Figure 5 is a schematic top view of a second display area of ​​a display panel in an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of a substrate to be evaporated in one embodiment of the present application;

[0033] Figure 7This is a schematic diagram of the first sub-pixel region of the substrate to be evaporated in one embodiment of the present application when sub-pixel manufacturing is completed;

[0034] Figure 8 This is a schematic diagram of the second sub-pixel region of the substrate to be evaporated in one embodiment of the present application when sub-pixel manufacturing is completed;

[0035] Fig. 9 It is a schematic diagram of the completion of sub-pixel manufacturing in the third sub-pixel region of the substrate to be evaporated in one embodiment of the present application;

[0036] Fig.10 is a schematic cross-sectional view of a display panel in an embodiment of the present application;

[0037] Fig.11 is a schematic top view of a first display area of ​​a display panel in another embodiment of the present application;

[0038] Fig.12 FIG. 4 is a schematic top view of a second display area of ​​a display panel in another embodiment of the present application. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] In recent years, OLED (Organic Light-Emitting Diode) has attracted widespread attention due to its huge application market in the display field. Compared with other display technologies, OLED modules have many advantages, such as wide viewing angle, fast response speed, no need for backlighting, and flexible display.

[0048] Some display devices in the related art use a display panel having a main display area and a sub-display area, wherein the sub-display area is used to display some auxiliary information. Since the sub-display area is only used to display auxiliary information, the requirement for its PPI is not high. However, the main display area and the sub-display area of ​​the existing display panel use the same PPI, resulting in a high production cost. Taking smart watches as an example, the display panels used by some smart watches on the market have a circular main display area and a ring-shaped sub-display area arranged around the main display area. Among them, the sub-display area is usually used to display some minor auxiliary information. At present, the main display area and the sub-display area of ​​the display panel of such smart watches usually use the same PPI, resulting in a high production cost. After careful investigation and research, the inventor found that under the limitations of the existing manufacturing process, if different areas of a display panel use different PPIs, the product yield will be greatly reduced, which is also the main reason why the main display area and the sub-display area of ​​the above-mentioned display panel use the same PPI.

[0049] Specifically, the production process of sub-pixels of existing display panels mainly uses FMM (fine metal mask) to evaporate the organic light-emitting material onto the substrate to be evaporated. In order to achieve different PPIs in the main display area and the auxiliary display area, the spacing of the evaporation openings in different areas of the FMM needs to be set differently. However, this will cause the FMM to be unevenly stressed when stretching the net, and it is easy to produce large wrinkles, which will reduce the production accuracy of sub-pixels and even cause color mixing problems, thereby reducing the product yield. Therefore, in order to ensure the yield of the product, most manufacturers have abandoned the solution of using different PPIs in different areas of a display panel.

[0050] In view of the above problems, an embodiment of the first aspect of the present application proposes a display panel 100 , aiming to reduce the manufacturing cost of the display panel 100 having a main display area and a sub-display area.

[0051] like Figures 1 to 5As shown, the display panel 100 in the embodiment of the first aspect of the present application has a first display area 101 and a second display area 102, and the display panel 100 includes a substrate 110, a pixel unit and a partition structure 140. The pixel unit is arranged on the substrate 110, and the pixel unit includes a plurality of sub-pixels. The partition structure 140 is arranged on one side of the substrate 110, and the partition structure 140 defines a plurality of partition openings, and the partition openings include a first opening 145 located in the first display area 101 and a second opening 146 located in the second display area 102. The sub-pixels are arranged in the first opening 145 and the second opening 146, respectively. The plurality of sub-pixels include a first sub-pixel 11 and a second sub-pixel 12, and the distance X1 between the centers of the first sub-pixel 11 and the second sub-pixel 12 located in the first display area 101 is less than the distance X2 between the centers of the first sub-pixel 11 and the second sub-pixel 12 located in the second display area 102.

[0052] Specifically, the display panel 100 may be an OLED display panel 100, wherein the substrate 110 may include a substrate and a driving circuit layer disposed on the substrate. The substrate may be a rigid substrate or a flexible substrate. When the substrate is a rigid substrate, the material of the substrate may be glass or silicon wafer, etc. When the substrate is a flexible substrate, the material of the substrate may be metal foil, polymer plastic, etc.

[0053] The plurality of sub-pixels in the pixel unit include a first sub-pixel 11 and a second sub-pixel 12 . It can be understood that the first sub-pixel 11 is used to emit a first color light, and the second sub-pixel 12 is used to emit a second color light.

[0054] The partition structure 140 defines a plurality of partition openings, and each sub-pixel is disposed in a corresponding partition opening, so that each sub-pixel is isolated from each other.

[0055] According to the display panel 100 in the embodiment of the present application, there is a first display area 101 and a second display area 102, wherein the plurality of sub-pixels in the pixel unit include a first sub-pixel 11 and a second sub-pixel 12, and the distance X1 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 is smaller than the distance X2 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the second display area 102. Thus, at least one of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 is distributed more densely than the corresponding sub-pixel of the same color in the second display area 102, so that the PPI of the first display area 101 is greater than the PPI of the second display area 102. When the display panel 100 is used, the first display area 101 can be used as a main display area for displaying more important information, and the second display area 102 can be used as a secondary display area for displaying secondary auxiliary information. In the display panel 100 in the embodiment of the present application, the first display area 101 and the second display area 102 use different PPIs, which is conducive to reducing the manufacturing cost of the display panel 100.

[0056] In addition, the display panel 100 in the embodiment of the present application does not cause a decrease in the yield of the product due to the difference in PPI between the first display area 101 and the second display area 102. To illustrate this point, the manufacturing method of the display panel 100 in the embodiment of the present application is introduced below:

[0057] The display panel 100 in the embodiment of the present application isolates the sub-pixels through the partition structure 140. The manufacturing method of the display panel 100 using the partition structure 140 is different from that of the traditional display panel. This difference is mainly reflected in the manufacturing process of the sub-pixels. In order to better understand the technical solution in the present application, it is necessary to explain the manufacturing process of the sub-pixels of the display panel 100 in the present application. Figure 6 The substrate 200 to be evaporated is preset with a first sub-pixel area 201, a second sub-pixel area 202 and a third sub-pixel area 203. The first sub-pixel area 201 is used to accommodate the first sub-pixel, the second sub-pixel area 202 is used to accommodate the second sub-pixel, and the third sub-pixel area 203 is used to accommodate the third sub-pixel.

[0058] like Figures 6 to 9 As shown, the sub-pixel production process is as follows:

[0059] First, a first color light-emitting material layer, a second electrode material layer and a first packaging material layer are sequentially deposited on the substrate 200 to be evaporated, and the first color light-emitting material layer, the second electrode material layer and the first packaging material layer are patterned by using a photolithography process, and only the first color light-emitting material layer, the second electrode material layer and the first packaging material layer are retained in the first sub-pixel area 201 to form a light-emitting functional part 131 for emitting the first color light and a corresponding second electrode part 151 (each sub-pixel includes a first electrode part 121, a light-emitting functional part 131 and a second electrode part 151) and a packaging part 171. The state of the display panel at this time is as follows: Figure 7 shown.

[0060] Then, a second color luminescent material layer, a second electrode material layer and a first packaging material layer are sequentially deposited on the substrate to be evaporated 200, and the second color luminescent material layer, the second electrode material layer and the first packaging material layer are patterned by using a photolithography process, and only the second color luminescent material layer, the second electrode material layer and the first packaging material layer are retained in the second sub-pixel area 202 to form a light-emitting functional part 131 for emitting the second color light and a second electrode part 151 and a packaging part 171 corresponding thereto. The state of the display panel at this time is as follows: Figure 8 shown.

[0061] Afterwards, a third color light emitting material layer, a second electrode material layer and a first packaging material layer are sequentially deposited on the substrate to be deposited 200, and the third color light emitting material layer, the second electrode material layer and the first packaging material layer are patterned by using a photolithography process, and only the third color light emitting material layer, the second electrode material layer and the first packaging material layer are retained in the third sub-pixel area 203 to form a light emitting functional part 131 for emitting the third color light and the corresponding second electrode part 151 and packaging part 171. The state of the display panel at this time is as follows: Fig. 9 shown.

[0062] It can be seen from the above production process that the above production process replaces the FMM (fine metal mask) used in the traditional production process. Since the production accuracy of the photolithography process is significantly higher than the accuracy of evaporation using FMM, the above production process can achieve a higher PPI (Pixels Per Inch, pixel density) and avoid the problem of reduced product yield due to FMM stretching.

[0063] In summary, the display panel 100 in the embodiment of the present application has different PPIs in the first display area 101 and the second display area 102, which is beneficial to reducing the manufacturing cost of the display panel 100. In addition, the display panel 100 uses a photolithography process instead of a FMM (fine metal mask) during the manufacturing process, thereby avoiding the problem of reduced product yield due to FMM stretching.

[0064] In some embodiments, the plurality of sub-pixels further include a third sub-pixel 13, and a distance Y1 between the centers of the first sub-pixel 11 and the third sub-pixel 13 located in the first display area 101 is smaller than a distance Y2 between the centers of the first sub-pixel 11 and the third sub-pixel 12 located in the second display area 102. Thus, at least one of the first sub-pixel 11 and the third sub-pixel 13 in the first display area 101 is distributed more densely than the corresponding sub-pixel of the same color in the second display area 102.

[0065] It is understandable that the second sub-pixel 12 is used to emit the second color light. The first color light, the second color light and the third color light are three different colors of light. For example, the first color light can be red light, the second color light can be green light, and the third color light can be blue light.

[0066] Furthermore, the distance Z1 between the centers of the second sub-pixel 12 and the third sub-pixel 13 in the first display area 101 is smaller than the distance Z2 between the centers of the second sub-pixel 12 and the third sub-pixel 13 in the second display area 102. Thus, the first sub-pixels 11, the second sub-pixels 12, and the third sub-pixels 13 in the first display area 101 are more densely distributed than the first sub-pixels 11, the second sub-pixels 12, and the third sub-pixels 13 in the second display area 102.

[0067] In some embodiments, Figures 2 to 5 As shown, in the first display area 101, a first spacing H1 is provided between the first opening 145 where the first sub-pixel 11 is provided and the first opening 145 where the second sub-pixel 12 is provided. In the second display area 102, a second spacing H2 is provided between the second opening 146 where the first sub-pixel 11 is provided and the second opening 146 where the second sub-pixel 12 is provided. The first spacing H1 is smaller than the second spacing H2.

[0068] By setting the first spacing H1 smaller than the second spacing H2, it is advantageous to make the distance X1 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 smaller than the distance X2 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the second display area 102.

[0069] Further, in the first display area 101, a third spacing H3 is provided between the first opening 145 provided with the first sub-pixel 11 and the first opening 145 provided with the third sub-pixel 13. In the second display area 102, a fourth spacing H4 is provided between the second opening 146 provided with the first sub-pixel 11 and the second opening 146 provided with the third sub-pixel 13. The third spacing H3 is smaller than the fourth spacing H4.

[0070] By setting the third spacing H3 smaller than the fourth spacing H4, it is advantageous to make the distance Y1 between the centers of the first sub-pixel 11 and the third sub-pixel 13 located in the first display area 101 smaller than the distance Y2 between the centers of the first sub-pixel 11 and the third sub-pixel 12 located in the second display area 102.

[0071] Further, in the first display area 101, a fifth spacing H5 is provided between the first opening 145 provided with the second sub-pixel 12 and the first opening 145 provided with the third sub-pixel 13. In the second display area 102, a sixth spacing H6 is provided between the second opening 146 provided with the second sub-pixel 12 and the second opening 146 provided with the third sub-pixel 13. The fifth spacing H5 is smaller than the sixth spacing H6.

[0072] By setting the fifth spacing H5 smaller than the sixth spacing H6, it is advantageous to make the distance Z1 between the centers of the second sub-pixel 12 and the third sub-pixel 13 located in the first display area 101 smaller than the distance Z2 between the centers of the second sub-pixel 12 and the third sub-pixel 13 located in the second display area 102.

[0073] In some embodiments, Figure 4 , Figure 5 As shown, the area of ​​the first opening 145 provided with the first sub-pixel 11 is less than or equal to the area of ​​the second opening 146 provided with the first sub-pixel 11; and / or, the area of ​​the first opening 145 provided with the second sub-pixel 12 is less than or equal to the area of ​​the second opening 146 provided with the second sub-pixel 12; and / or the area of ​​the first opening 145 provided with the third sub-pixel 13 is less than or equal to the area of ​​the second opening 146 provided with the third sub-pixel 13. In the case where the PPI of the first display area 101 is greater than the PPI of the second display area 102, the area of ​​the first opening 145 provided with a certain color sub-pixel in the first display area 101 can be made less than or equal to the area of ​​the second opening 146 provided with the same color sub-pixel in the second display area 101. It is not difficult to understand that when the area of ​​the second opening 146 provided with the same color sub-pixel in the second display area 102 is larger, the area of ​​the sub-pixel in the second display area 102 can also be set larger accordingly, which is beneficial to the aperture ratio of the second sub-pixel.

[0074] In some embodiments, each sub-pixel includes a first electrode portion 121, a light-emitting functional portion 131 and a second electrode portion 151, wherein the light-emitting functional portion 131 is disposed on a side of the first electrode portion 121 away from the substrate 110, and the second electrode portion 151 is disposed on a side of the light-emitting functional portion 131 away from the substrate 110.

[0075] The first electrode portion 121 is the anode of the sub-pixel. The light-emitting functional portion 131 is the light-emitting portion of the sub-pixel. Specifically, the light-emitting functional portion 131 includes an organic light-emitting layer, and the light-emitting functional portion 131 may also include organic auxiliary film layers such as a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer. The second electrode portion 151 is the cathode of the sub-pixel.

[0076] Furthermore, if Figure 2 , Figure 3 As shown, the display panel 100 further includes a pixel definition layer 160 , which is disposed on the same side of the substrate 110 as the partition structure 140 . The pixel definition layer 160 has a plurality of pixel definition openings 161 , and the light-emitting functional portion 131 is at least partially located in the pixel definition opening 161 .

[0077] The pixel definition opening 161 is used to expose the first electrode portion 121, so that at least part of the light-emitting functional portion 131 is disposed on the first electrode portion 121 through the pixel definition opening 161. In addition, it can be understood that the pixel definition opening 161 located in the first display area 101 is preferably disposed at the center of the first opening 145, which is conducive to ensuring the uniformity of light emission of the light-emitting functional portion 131 in the first display area 101. Similarly, the pixel definition opening 161 located in the second display area 102 is preferably disposed at the center of the second opening 146, which is conducive to ensuring the uniformity of light emission of the light-emitting functional portion 131 in the second display area 102.

[0078] Further, the area of ​​the pixel definition opening 161 of the light-emitting functional portion 131 corresponding to the first sub-pixel 11 in the first display area 101 is less than or equal to the area of ​​the pixel opening 161 of the light-emitting functional portion 131 corresponding to the first pixel 11 in the second display area 102; and / or, the area of ​​the pixel definition opening 161 of the light-emitting functional portion 131 corresponding to the second pixel 12 in the first display area 101 is less than or equal to the area of ​​the pixel opening 161 of the light-emitting functional portion 131 corresponding to the second pixel 12 in the second display area 102; and / or, the area of ​​the pixel definition opening 161 of the light-emitting functional portion 131 corresponding to the third pixel 12 in the first display area 101 is less than or equal to the area of ​​the pixel opening 161 of the light-emitting functional portion 131 corresponding to the third pixel 13 in the second display area 102.

[0079] In some embodiments, the partition structure 140 includes a conductive material, and the second electrode portion 151 is electrically connected to the partition structure 140. The second electrode portion 151 is electrically connected to the partition structure 140, so that the second electrode portions 151 of different sub-pixels can be electrically connected through the partition structure 140, so that the cathodes of multiple sub-pixels are in a state of being electrically connected to each other, which is conducive to reducing the number of cathode wirings connected to the cathodes in the display panel 100. Since the number of cathode wirings will affect the size of the frame area of ​​the display panel 100, it is conducive to realizing a narrow frame design of the display panel 100.

[0080] In some embodiments, the first opening 145 is arranged in a one-to-one correspondence with the pixel definition opening 161 located in the first display area 101, and the orthographic projection of the pixel definition opening 161 located in the first display area 101 on the substrate 110 is located within the orthographic projection of the corresponding first opening 145 on the substrate 110. The second opening 146 is arranged in a one-to-one correspondence with the pixel definition opening 161 located in the second display area 102, and the orthographic projection of the pixel definition opening 161 located in the second display area 102 on the substrate 110 is located within the orthographic projection of the corresponding second opening 146 on the substrate 110. In the first display area 101, the first opening 145 has a one-to-one correspondence with the pixel definition opening 161 located in the first display area 101, and in the second display area 102, the second opening 146 has a one-to-one correspondence with the pixel definition opening 161 located in the second display area 102. That is, each sub-pixel corresponds to a light-emitting functional portion 131, and any two adjacent sub-pixels are isolated by the partition structure 140.

[0081] Furthermore, if Figure 2 , Figure 3 As shown, there is a first distance K1 between the boundary of the orthographic projection of the pixel definition opening 161 located in the first display area 101 on the substrate 110 and the boundary of the orthographic projection of the corresponding first opening 145 on the substrate 110; there is a second distance K2 between the boundary of the orthographic projection of the pixel definition opening 161 located in the second display area 102 on the substrate 110 and the boundary of the orthographic projection of the corresponding second opening 146 on the substrate 110; wherein, K1=K2.

[0082] That is to say, the size of the pixel definition opening 161 is positively correlated with the size of the partition opening, and the size of the pixel definition opening 161 is adapted to the size of the corresponding partition opening. Since the partition structure has a limiting effect on the maximum light output angle of the sub-pixel, the maximum light output angles of different sub-pixels can be kept consistent, which is beneficial to improving the uniformity of the display effect of the display panel.

[0083] In some embodiments, Figure 1As shown, the second display area 102 is disposed around at least a portion of the first display area 101. Thus, the display panel 100 can be applied to a smart watch.

[0084] Furthermore, the second display area 102 is in the shape of a closed or open ring, so that the second display area 102 can be constructed to surround at least a portion of the first display area 101 .

[0085] Furthermore, the shape of the first display area 101 is circular. The circular first display area 101 can be used as a main display area, and the annular second display area 102 located outside the first display area 101 can be used as a secondary display area. The main display area is used to display more important information (such as time, short messages, call records, exercise records, etc.), and the secondary display area is used to display secondary auxiliary information (such as date, weather, etc.).

[0086] In some embodiments, Figure 2 , Figure 3 As shown, the partition structure 140 includes an insulator 141 and a blocking portion 142, wherein the blocking portion 142 is located on the side of the insulator 141 away from the substrate 110, and the orthographic projection of the top surface of the insulator 141 on the substrate 110 is located within the orthographic projection of the bottom surface of the blocking portion 142 on the substrate 110. The insulator 141 is mainly used to isolate the light-emitting functional portions 131 of different sub-pixels and to isolate the second electrode portions 151 of different sub-pixels. The blocking portion 142 is located on the side of the insulator 141 away from the substrate 110, and the orthographic projection of the top surface of the insulator 141 on the substrate 110 is located within the orthographic projection of the bottom surface of the blocking portion 142 on the substrate 110, that is, there is a certain distance between the edge of the bottom surface of the blocking portion 142 and the edge of the top surface of the insulator 141, thereby forming a step structure between the bottom surface of the blocking portion 142 and the top surface of the insulator 141. The presence of the step structure is beneficial for isolating the light-emitting material layers formed on different sides of the partition structure 140 from each other during the evaporation process.

[0087] Furthermore, the insulator 141 includes a conductive material, and the second electrode portion 151 is electrically connected to the insulator 141 , thereby enabling the second electrode portions 151 of different sub-pixels to be electrically connected through the insulator 141 .

[0088] In some embodiments, Fig.10As shown, the partition structure 140 may further include a bearing portion 143, and the bearing portion 143 is located on the side of the isolating body 141 close to the substrate 110. The orthographic projection of the bottom surface of the isolating body 141 on the substrate 110 is located within the orthographic projection of the top surface of the bearing portion 143 on the substrate 110, the bearing portion 143 includes a conductive material, and the second electrode portion 151 is electrically connected to the bearing portion 143. In this way, the size of the top surface of the bearing portion 143 is greater than the size of the bottom surface of the isolating body 141. Since the partition structure 140 is also provided with the bearing portion 143, the second electrode portion 151 climbs up to the bearing portion 143 and then further overlaps with the isolating body 141, thereby reducing the climbing angle of the second electrode portion 151, which is beneficial to improving the overlapping stability between the second electrode portion 151 and the isolating body 141. In addition, the supporting portion 143 also includes a conductive material, and the second electrode portion 151 is also electrically connected to the supporting portion 143. In this way, even if a virtual connection problem occurs between the second electrode portion 151 and the insulator 141, the electrical connection relationship between the second electrode portion 151 and the partition structure 140 can still be guaranteed. Therefore, electrical connection failure can be further prevented to improve the performance stability of the display panel 100.

[0089] Further, the second electrode portion 151 covers part of the top surface and at least part of the side surface of the carrier portion 143. That is, the second electrode portion 151 may cover part of the side surface of the carrier portion 143, or may cover the entire side surface of the carrier portion 143. It is understood that the larger the surface area of ​​the carrier portion 143 covered by the second electrode portion 151, the better the electrical connection stability between the second electrode portion 151 and the carrier portion 143.

[0090] In some embodiments, the display panel 100 further includes a first encapsulation layer 170, which includes encapsulation parts 171 arranged at intervals, and the encapsulation parts 171 are used to encapsulate the light-emitting functional parts 131. In this way, the encapsulation parts 171 can encapsulate and protect the light-emitting functional parts 131 one by one.

[0091] Furthermore, the display panel 100 further includes a second encapsulation layer 180, which is disposed on a side of the first encapsulation layer 170 away from the substrate 110, and covers the top surface of the first encapsulation layer 170 and the partition structure 140. The first encapsulation layer 170 encapsulates the light-emitting functional parts 131 one by one through the first encapsulation parts 171 arranged at intervals, and the second encapsulation layer 180 can be encapsulated on the entire surface, thereby further improving the encapsulation performance.

[0092] Furthermore, the display panel 100 may also include a third encapsulation layer 190, which is arranged on the side of the second encapsulation layer 180 away from the substrate 110. Thus, multi-layer encapsulation is achieved through the first encapsulation layer 170, the second encapsulation layer 180 and the third encapsulation layer 190 to further improve the encapsulation performance.

[0093] Specifically, the first encapsulation layer 170 and the third encapsulation layer 190 may be inorganic film layers, and the second encapsulation layer 180 may be an organic film layer. The inorganic film layer mainly serves to isolate water vapor and air, and the organic film layer is mainly used to provide flexibility. In addition, the second encapsulation layer 180 is an organic film layer, which can also serve to flatten the first encapsulation layer 170.

[0094] The second aspect of the present application provides a display panel 100, such as Fig.11 , Fig.12 As shown, the display panel 100 has a first display area 101 and a second display area 101. The display panel 100 includes a substrate 110, a pixel unit and a partition structure 140. The pixel unit is disposed on the substrate 110, and the pixel unit includes a plurality of sub-pixels; the partition structure 140 is disposed on one side of the substrate 110, and the partition structure 140 defines a plurality of partition openings, the partition openings include a first opening 145 located in the first display area 101 and a second opening 146 located in the second display area 102, and the sub-pixels are respectively disposed in the first opening 145 and the second opening 145. The plurality of sub-pixels include a first sub-pixel 11, and the distance Q1 between the centers of two adjacent first sub-pixels 11 located in the first display area 101 is smaller than the distance Q2 between the centers of two adjacent first sub-pixels 11 located in the second display area 102.

[0095] According to the display panel 100 in the embodiment of the present application, there is a first display area 101 and a second display area 102, wherein the plurality of sub-pixels in the pixel unit include a first sub-pixel 11, and the distance Q1 between the centers of two adjacent first sub-pixels 11 in the first display area 101 is less than the distance Q2 between the centers of two adjacent first sub-pixels 11 in the second display area 102. Thus, the first sub-pixels 11 in the first display area 101 are distributed more densely than the first sub-pixels 11 in the second display area 102, so that the PPI of the first display area 101 is greater than the PPI of the second display area 102. When the display panel 100 is used, the first display area 101 can be used as a main display area for displaying more important information, and the second display area 102 can be used as a secondary display area for displaying secondary auxiliary information. In the display panel 100 in the embodiment of the present application, the first display area 101 and the second display area 102 use different PPIs, which is conducive to reducing the manufacturing cost of the display panel 100.

[0096] The third aspect of the present application provides a display panel 100. Figure 1 , Figure 4 and Figure 5 The display panel 100 has a first display area 101 and a second display area 102. The display panel 100 includes a substrate 110 and a pixel unit, the pixel unit is disposed on the substrate 100, and the pixel unit includes a plurality of sub-pixels. The plurality of sub-pixels include a first sub-pixel 11 and a second sub-pixel 12, and the distance X1 between the centers of the first sub-pixel 11 and the second sub-pixel 12 located in the first display area 101 is smaller than the distance X2 between the centers of the first sub-pixel 11 and the second sub-pixel 12 located in the second display area 101.

[0097] According to the display panel 100 in the embodiment of the present application, there is a first display area 101 and a second display area 102, wherein the plurality of sub-pixels in the pixel unit include a first sub-pixel 11 and a second sub-pixel 12, and the distance X1 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 is smaller than the distance X2 between the centers of the first sub-pixel 11 and the second sub-pixel 12 in the second display area 102. Thus, at least one of the first sub-pixel 11 and the second sub-pixel 12 in the first display area 101 is distributed more densely than the corresponding sub-pixel of the same color in the second display area 102, so that the PPI of the first display area 101 is greater than the PPI of the second display area 102. When the display panel 100 is used, the first display area 101 can be used as a main display area for displaying more important information, and the second display area 102 can be used as a secondary display area for displaying secondary auxiliary information. In the display panel 100 in the embodiment of the present application, the first display area 101 and the second display area 102 use different PPIs, which is conducive to reducing the manufacturing cost of the display panel 100.

[0098] The fourth aspect of the present application provides a display device, which includes the display panel 100 in any of the above embodiments. The display device can be, for example, a display, a television, a digital camera, a mobile phone, a tablet computer, a navigator, or any other product or component with a display function.

[0099] The display device in the embodiment of the present application has the same inventive concept as the display panel in the embodiment of the first aspect, and the display device can also obtain all the technical effects of the display panel, which will not be described in detail here.

[0100] 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.

[0101] 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 has a first display area and a second display area, and includes: substrate; A pixel unit, disposed on the substrate, wherein the pixel unit includes a plurality of sub-pixels; A partition structure is disposed on one side of the substrate, the partition structure defines a plurality of partition openings, the partition openings include a first opening located in the first display area and a second opening located in the second display area, and the sub-pixels are respectively disposed in the first opening and the second opening; The multiple sub-pixels include a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel in the first display area is smaller than the distance between the centers of the first sub-pixel and the second sub-pixel in the second display area.

2. The display panel according to claim 1, characterized in that: The plurality of sub-pixels further includes a third sub-pixel; A distance between centers of the first sub-pixel and the third sub-pixel located in the first display area is smaller than a distance between centers of the first sub-pixel and the third sub-pixel located in the second display area; Optionally, a distance between centers of the second sub-pixel and the third sub-pixel located in the first display area is smaller than a distance between centers of the second sub-pixel and the third sub-pixel located in the second display area.

3. The display panel according to claim 2, characterized in that: In the first display area, a first distance exists between the first opening where the first sub-pixel is disposed and the first opening where the second sub-pixel is disposed; In the second display area, a second distance exists between the second opening where the first sub-pixel is disposed and the second opening where the second sub-pixel is disposed; The first spacing is smaller than the second spacing; Optionally, in the first display area, a third distance exists between the first opening where the first sub-pixel is disposed and the first opening where the third sub-pixel is disposed; In the second display area, a fourth distance exists between the second opening where the first sub-pixel is disposed and the second opening where the third sub-pixel is disposed; The third spacing is smaller than the fourth spacing; Optionally, in the first display area, a fifth distance exists between the first opening where the second sub-pixel is disposed and the first opening where the third sub-pixel is disposed; In the second display area, a sixth distance exists between the second opening where the second sub-pixel is disposed and the second opening where the third sub-pixel is disposed; The fifth interval is smaller than the sixth interval.

4. The display panel according to claim 3, characterized in that: An area of ​​the first opening where the first sub-pixel is disposed is smaller than or equal to an area of ​​the second opening where the first sub-pixel is disposed; and / or An area of ​​the first opening where the second sub-pixel is disposed is smaller than or equal to an area of ​​the second opening where the second sub-pixel is disposed; and / or An area of ​​the first opening where the third sub-pixel is disposed is smaller than or equal to an area of ​​the second opening where the third sub-pixel is disposed.

5. The display panel according to any one of claims 1 to 4, characterized in that: Each of the sub-pixels comprises a first electrode portion, a light emitting function portion and a second electrode portion, wherein the light emitting function portion is arranged on a side of the first electrode portion away from the substrate, and the second electrode portion is arranged on a side of the light emitting function portion away from the substrate; Optionally, the display panel further comprises a pixel definition layer, wherein the pixel definition layer and the partition structure are arranged on the same side of the substrate, the pixel definition layer has a plurality of pixel definition openings, and the light emitting functional part is at least partially located in the pixel definition openings; Optionally, the partition structure includes a conductive material, and the second electrode portion is electrically connected to the partition structure; Optionally, the first openings are arranged in one-to-one correspondence with the pixel definition openings located in the first display area, and the orthographic projections of the pixel definition openings located in the first display area on the substrate are located within the orthographic projections of the corresponding first openings on the substrate; The second openings are arranged in one-to-one correspondence with the pixel definition openings located in the second display area, and the orthographic projections of the pixel definition openings located in the second display area on the substrate are located within the orthographic projections of the corresponding second openings on the substrate; Preferably, a first distance K1 exists between a boundary of an orthographic projection of the pixel definition opening located in the first display area on the substrate and a boundary of an orthographic projection of the corresponding first opening on the substrate; There is a second distance K2 between the boundary of the orthographic projection of the pixel definition opening located in the second display area on the substrate and the boundary of the orthographic projection of the corresponding second opening on the substrate; wherein K1=K2.

6. The display panel according to claim 5, characterized in that: The partition structure comprises an isolating body and a blocking portion, wherein the blocking portion is located on a side of the isolating body away from the substrate, and an orthographic projection of a top surface of the isolating body on the substrate is located within an orthographic projection of a bottom surface of the blocking portion on the substrate; The isolator comprises a conductive material, and the second electrode portion is electrically connected to the isolator; Preferably, the partition structure further comprises a bearing portion, and the bearing portion is located on a side of the isolating body close to the substrate; the orthographic projection of the bottom surface of the isolating body on the substrate is located within the orthographic projection of the top surface of the bearing portion on the substrate; The carrying portion includes a conductive material, and the second electrode portion is electrically connected to the carrying portion; Preferably, the second electrode portion covers a portion of a top surface and at least a portion of a side surface of the carrying portion.

7. The display panel according to claim 1, characterized in that: The second display area is arranged around at least a portion of the first display area; Preferably, the second display area is in the shape of a closed or unclosed ring; Preferably, the first display area is circular in shape.

8. A display panel, characterized in that: The display panel has a first display area and a second display area, and includes: substrate; A pixel unit, disposed on the substrate, wherein the pixel unit includes a plurality of sub-pixels; A partition structure is disposed on one side of the substrate, the partition structure defines a plurality of partition openings, the partition openings include a first opening located in the first display area and a second opening located in the second display area, and the sub-pixels are respectively disposed in the first opening and the second opening; The plurality of sub-pixels include a first sub-pixel, and a distance between centers of two adjacent first sub-pixels in the first display area is smaller than a distance between centers of two adjacent first sub-pixels in the second display area.

9. A display panel, characterized in that: The display panel has a first display area and a second display area, and includes: substrate; A pixel unit, disposed on the substrate, wherein the pixel unit includes a plurality of sub-pixels; The multiple sub-pixels include a first sub-pixel and a second sub-pixel, and the distance between the centers of the first sub-pixel and the second sub-pixel in the first display area is smaller than the distance between the centers of the first sub-pixel and the second sub-pixel in the second display area.

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

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