Display panel and display device

Abstract

The utility model discloses a display panel and a display device. The display panel comprises a substrate, and the substrate comprises a splicing display area between a first display area and a second display area; the pixel limiting layer is located on the substrate and is provided with a pixel opening, and a sub-pixel area is defined by the pixel opening; each sub-pixel region comprises a light-emitting unit, and each light-emitting unit comprises a functional film layer; the pixel openings in the splicing display area comprise a first type of pixel openings and a second type of pixel openings, and a first splicing line is arranged between the first type of pixel openings and the second type of pixel openings; the functional film layer comprises a target functional film layer, the target functional film layer in the splicing display area comprises a first type of target functional film layer and a second type of target functional film layer, and a second splicing line is arranged between the first type of target functional film layer and the second type of target functional film layer; the orthographic projection of the first splicing line on the substrate body and the orthographic projection of the second splicing line on the substrate body at least partially do not coincide.

Description

Technical Field

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

[0002] With the continuous development of display technology, silicon-based OLED (Organic Light Emitting Diode) display panels have attracted widespread attention due to their advantages such as high resolution, low power consumption, small size, and light weight. They have great application prospects in high-resolution near-eye display industries such as wearable devices, industrial security, and medical treatment. When the screen size of silicon-based OLED display panels exceeds 1.43 inches, during the production process, due to the limited single exposure range of the exposure machine, the exposure process cannot be completed in a single exposure. More than two exposures are required to complete the exposure process.

[0003] The exposure process in related art uses a splicing exposure method to perform multiple exposures to complete a single exposure process. However, in this splicing exposure method, the areas of two adjacent exposures overlap. Because the overlapping areas are exposed twice, they will cause poor splicing, resulting in poor display quality of silicon-based OLED display panels. Utility Model Content

[0004] The utility model provides a display panel and a display device, which are used to solve the problem that the display panel has poor display effect due to splicing defects caused by splicing exposure.

[0005] To solve the above technical problems, the present invention provides a display panel, comprising: a base substrate, comprising a plurality of display areas, the plurality of display areas comprising a first display area and a second display area adjacent to each other, and a spliced ​​display area located between the first display area and the second display area; a pixel defining layer, located on the base substrate, the pixel defining layer having a plurality of pixel openings arranged at intervals, the pixel openings defining a plurality of sub-pixel areas in the display area on the base substrate; the sub-pixel areas comprising: a light-emitting unit, the light-emitting unit comprising a plurality of functional film layers, the plurality of functional film layers being configured to emit display light; wherein the pixel openings in the spliced ​​display area comprise a first type of pixel opening and a second type of pixel opening, a first splicing line being provided between the first type of pixel opening and the second type of pixel opening, the first splicing line being formed by the pixel defining layer; and wherein the plurality of functional film layers comprise a target functional film layer, the target functional film layer in the spliced ​​display area comprises a first type of target functional film layer and a second type of target functional film layer, a second splicing line being provided between the first type of target functional film layer and the second type of target functional film layer, the orthographic projection of the first splicing line on the base substrate and the orthographic projection of the second splicing line on the base substrate at least partially not overlapping.

[0006] Optionally, the first type of pixel openings and the pixel openings of the first display area are manufactured through a single process, the second type of pixel openings and the pixel openings of the second display area are manufactured through a single process, and the pixel openings of the first display area and the pixel openings of the second display area are manufactured through different processes; the first type of target functional film layer and the target functional film layer of the first display area are manufactured through a single process, the second type of target functional film layer and the target functional film layer of the second display area are manufactured through a single process, and the target functional film layer of the first display area and the target functional film layer of the second display area are manufactured through different processes.

[0007] Optionally, the target functional layer includes a color filter layer, the color filter layer includes a first type of color filter layer and a second type of color filter layer located in the splicing display area, the second splicing line includes a first sub-splicing line formed by the gap between the first type of color filter layer and the second type of color filter layer, and / or the target functional layer includes an optical lens layer, the optical lens layer includes a first type of optical lens layer and a second type of optical lens layer located in the splicing display area, and the second splicing line includes a second sub-splicing line formed by the gap between the first type of optical lens layer and the second type of optical lens layer; the orthographic projection of the first sub-splicing line formed by the color filter layer on the base substrate and the orthographic projection of the second sub-splicing line formed by the optical lens layer on the base substrate completely overlap or at least partially do not overlap.

[0008] Optionally, when the target functional layer includes a color filter layer and an optical lens layer, any two or three of the orthographic projection of the first stitching line on the base substrate, the orthographic projection of the first sub-stitching line on the base substrate, and the orthographic projection of the second sub-stitching line on the base substrate at least partially do not overlap.

[0009] Optionally, the spacing distance between two adjacent sub-pixel areas in the first display area is the same as the spacing distance between two adjacent sub-pixel areas in the second display area, and the spacing distance between two adjacent sub-pixel areas in the spliced ​​display area is different from the spacing distance between two adjacent sub-pixel areas in the first display area.

[0010] Optionally, the spacing distance between any two adjacent sub-pixel areas in the spliced ​​display area is the same or unequal.

[0011] Optionally, the areas of the sub-pixel regions of the same color in the first display area and the second display area are the same, and the area of ​​the sub-pixel region of the same color in the spliced ​​display area is different from the area of ​​the sub-pixel region of the same color in the first display area.

[0012] Optionally, the areas of the multiple sub-pixel regions of the same color in the spliced ​​display area are the same or different.

[0013] Optionally, the shapes of the multiple sub-pixel areas in the first display area and the second display area are the same, and the shapes of the multiple sub-pixel areas in the spliced ​​display area are different from the shapes of the multiple sub-pixel areas in the first display area.

[0014] Optionally, the cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area and the second display area are the same, and the cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the spliced ​​display area are different from the cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area.

[0015] Optionally, the cavity lengths of the optical cavities corresponding to the light-emitting units of multiple sub-pixel areas of the same color in the spliced ​​display area are identical or different.

[0016] Optionally, the multiple functional film layers of the light-emitting unit include an OLED and an insulating layer located between the OLED and the base substrate. The thickness of the insulating layer in the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the insulating layer in the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0017] Optionally, the multiple functional film layers of the light-emitting unit include an OLED and a reflective layer located between the OLED and the base substrate; the thickness of the reflective layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the reflective layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0018] Optionally, the multiple functional film layers of the light-emitting unit include an OLED, a reflective layer located between the OLED and the base substrate, and a cushion layer located between the OLED and the reflective layer; the thickness of the cushion layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the cushion layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0019] Optionally, the multiple functional film layers of the light-emitting unit include OLED, which includes an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode; the thickness of the anode of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the anode of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0020] Optionally, when the multiple functional film layers of the light-emitting unit include a color filter layer, the thickness of the color filter layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the color filter layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0021] Optionally, when the multiple functional film layers of the light-emitting unit include an optical lens layer, the thickness of the optical lens layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the optical lens layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

[0022] The present invention also provides a display device, comprising the display panel of the present invention.

[0023] The technical solution of this utility model has the following technical effects:

[0024] The display panel provided by the technical solution of the present invention has a pixel-defining layer on a base substrate having a plurality of spaced-apart pixel openings. The pixel openings in the spliced ​​display area include a first type of pixel opening and a second type of pixel opening, with a first splicing line formed by the pixel-defining layer between the first type of pixel opening and the second type of pixel opening. The target functional film layer in the spliced ​​display area includes a first type of target functional film layer and a second type of target functional film layer, with a second splicing line between the first type of target functional film layer and the second type of target functional film layer. By setting the orthographic projection of the first splicing line on the base substrate and the orthographic projection of the second splicing line on the base substrate to at least partially not overlap, the position of the splicing line can be visually blurred, avoiding splicing defects caused by splicing bright lines or splicing dark lines in the spliced ​​display area, achieving a smooth transition of brightness and chromaticity in the spliced ​​display area, and thereby improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A schematic diagram of the structure of a display panel provided for related technology;

[0027] Figure 2is a top view of a pixel opening provided by some embodiments of the present invention;

[0028] Figure 3 A top view of a color filter layer provided in some embodiments of the present invention;

[0029] Figure 4 A top view of an optical lens layer provided in some embodiments of the present invention;

[0030] Figure 5 A schematic structural diagram of a display panel provided in some embodiments of the present invention;

[0031] Figure 6 Another structural schematic diagram of a display panel provided in some embodiments of the present invention;

[0032] Figure 7 Another structural schematic diagram of a display panel provided in some embodiments of the present invention;

[0033] Figure 8 Another structural schematic diagram of a display panel provided in some embodiments of the present invention;

[0034] Figure 9 Another structural schematic diagram of a display panel provided in some embodiments of the present invention;

[0035] Figure 10 Another structural schematic diagram of a display panel provided in some embodiments of the present invention. DETAILED DESCRIPTION

[0036] The technical solution of the present application will be described clearly and in detail below in conjunction with the drawings of the embodiments of the present application. Obviously, the embodiments described below are part of the embodiments of the present application rather than all the embodiments, and are only used to more clearly illustrate the technical solution of the present application. Therefore, they are only used as examples and cannot be used to limit the scope of protection of the present application. Based on the described embodiments of the present application, all other embodiments that can be obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used herein shall have the meanings commonly understood by those skilled in the art in the technical field of this application; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" in the embodiments of this application and any variations thereof are intended to cover non-exclusive inclusions. The terms "first" and "second" in the embodiments of this application are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the embodiments of this application, unless otherwise stated, "multiple" means more than two.

[0038] In the embodiments of the present application, the orientations or positional relationships indicated by “longitudinal”, “transverse”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0039] In the embodiments of the present application, terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0040] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] refer to Figure 1The display panel in the related art includes: a base substrate 1, which includes multiple display areas; a pixel defining layer 2, which is located on the base substrate 1 and has multiple pixel openings spaced apart from each other. The pixel openings define multiple sub-pixel areas in the display area on the base substrate 1; and the sub-pixel areas include: a light-emitting unit, which includes multiple functional film layers, and the multiple functional film layers are used to emit display light. Among them, the multiple functional film layers include at least an OLED 3, a color filter layer 4 located on the side of the OLED 3 facing away from the base substrate 1, and an optical lens layer 5 located on the side of the color filter layer 4 facing away from the base substrate 1. The OLED 3 includes an anode 31, a cathode 32, and an organic light-emitting layer 33 located between the anode 31 and the cathode 32. When the screen size of the display panel is large, when forming the multiple film layer patterns of the display panel, it is necessary to use a splicing exposure method of more than or equal to 2 times to expose the pixel defining layer 2, the color filter layer 4, and the optical lens layer 5 respectively to form the required patterns of each film layer. To facilitate connection, the multiple display areas on the base substrate 1 are defined to include a first display area and a second display area adjacent to each other, and a splicing display area (not shown) located between the first display area and the second display area.

[0042] There are two main methods for splicing exposure. The first method is to repeatedly expose the spliced ​​display area. That is, the first display area and the spliced ​​display area are exposed for the first time using a mask, and the second display area and the spliced ​​display area are exposed for the second time using the mask. As can be seen, because the spliced ​​display area is exposed twice, the display panel will have splicing bright lines or splicing dark lines in the spliced ​​display area, resulting in poor splicing. Specifically, due to the different properties of the photoresists used in the exposure process of the pixel defining layer 2, the color filter layer 4 and the optical lens layer 5, a positive photoresist is used in the exposure process of the pixel defining layer 2. After the exposure process of the pixel defining layer 2, the pixel opening of the spliced ​​display area is larger than the pixel opening of the other display areas (the first display area and the second display area), and more display light can be emitted, resulting in the display panel generating a spliced ​​bright line in the spliced ​​display area; a positive photoresist or a negative photoresist is used in the exposure process of the color filter layer 4. When a positive photoresist is used, after the exposure process of the color filter layer 4, the size of the color filter layer 4 in the spliced ​​display area is larger than the size of the color filter layer 4 in the other display areas (the first display area and the second display area), and it can It can emit more display light, resulting in the display panel generating splicing bright lines in the splicing display area; when negative photoresist is used, after the color filter layer 4 is exposed, the size of the color filter layer 4 in the splicing display area is smaller than the size of the color filter layer 4 in other display areas (the first display area and the second display area), and less display light can pass through, resulting in the display panel generating splicing dark lines in the splicing display area; optical glue is used when the optical lens layer 5 is exposed, and after the optical lens layer 5 is exposed, the radius size of the optical lens layer 5 in the splicing display area is smaller than the radius size of the optical lens layer 5 in other display areas (the first display area and the second display area), and less display light can pass through, resulting in the display panel generating splicing dark lines in the splicing display area.

[0043] The second method is mosaic splicing exposure. For example, the exposure process of the pixel defining layer 2 includes: exposing the pixel defining layer 2 of the first display area and a portion of the pixel defining layer 2 of the spliced ​​display area once to form a first type of pixel opening, and exposing the pixel defining layer 2 of the second display area and another portion of the pixel defining layer 2 of the spliced ​​display area once to form a second type of pixel opening. The first type of pixel opening and the second type of pixel opening in the spliced ​​display area are complementary mosaic openings. This can greatly blur the splicing boundary and reduce the problem of splicing bright lines or splicing dark lines in the spliced ​​display area of ​​the display panel. However, when the mask is used in the two exposures of the spliced ​​display area, there is usually a difference in alignment. As a result, the spacing between adjacent first type pixel openings and second type pixel openings in the spliced ​​display area is different from the spacing between two adjacent first type pixel openings in the first display area and different from the spacing between two adjacent second type pixel openings in the second display area. Therefore, the mosaic splicing exposure method is commonly used in large-size OLED display panels and does not cause obvious problems when observed by the human eye.

[0044] However, in AR display products or VR display products, silicon-based OLED display panels are the preferred display panels. The pixel resolution of silicon-based OLED display panels (3000PPI (pixel density unit) ~ 6000PPI) is larger than the pixel resolution of large-size OLED display panels (300PPI (pixel density unit) ~ 600PPI). Therefore, silicon-based OLED display panels usually need to be used with an optical system with a certain magnification. In this way, when the splicing lines formed by the pixel defining layer 2, the splicing lines formed between the color film layers 4, and the splicing lines formed between the optical lens layers 5 overlap in the orthographic projection on the base substrate 1, the effect of using mosaic splicing exposure to weaken the problem of splicing bright lines or splicing dark lines in the splicing display area of ​​the display panel is reduced, making the problem of poor splicing more obvious, resulting in poor display effect of the silicon-based OLED display panel.

[0045] Therefore, there is an urgent need to provide a display panel and a display device to solve the problem that the display panel has poor splicing due to splicing exposure, resulting in poor display effect of the display panel.

[0046] Based on this, combined Figures 2 to 5As shown, some embodiments of the present invention provide a display panel, comprising: a base substrate 100, the base substrate 100 including a plurality of display areas, the plurality of display areas including adjacent first display area B1 and second display area B2, and a spliced ​​display area B3 located between the first display area B1 and the second display area B2; a pixel defining layer 200, located on the base substrate 100, the pixel defining layer 200 having a plurality of pixel openings 300 arranged at intervals, the pixel openings 300 defining a plurality of sub-pixel areas in the display area on the base substrate 1; the sub-pixel areas comprising: a light-emitting unit, the light-emitting unit comprising a plurality of functional film layers, the plurality of functional film layers being used to emit display light, wherein the pixel openings 300 in the spliced ​​display area B3 include a first type of pixel opening 300a and a second type of pixel opening 300b (refer to Figure 2 ), a first splicing line is provided between the first type pixel opening 300a and the second type pixel opening 300b, and the first splicing line is formed by the pixel defining layer 200; and wherein the plurality of functional film layers include a target functional film layer 400, and the target functional film layer 400 in the splicing display area includes a first type target functional film layer 400a and a second type target functional film layer 400b (reference Figure 3 and Figure 4 ), there is a second stitching line between the first type target functional film layer 400a and the second type target functional film layer 400b, and the orthographic projection of the first stitching line on the base substrate 100 and the orthographic projection of the second stitching line on the base substrate 100 at least partially do not overlap.

[0047] In this embodiment, the pixel defining layer 200 on the base substrate 100 has a plurality of spaced pixel openings 300. The pixel openings 300 within the tiled display area B3 include first-type pixel openings 300a and second-type pixel openings 300b, with a first tiled line formed by the pixel defining layer 200 between the first-type pixel openings 300a and the second-type pixel openings 300b. The target functional film layer 400 within the tiled display area B3 includes first-type target functional film layers 400a and second-type target functional film layers 400b, with a second tiled line between the first-type target functional film layers 400a and the second-type target functional film layers 400b. By ensuring that the orthographic projections of the first tiled line and the second tiled line on the base substrate 100 at least partially do not overlap, the position of the tiled line can be visually blurred, avoiding poor tiled connections caused by bright or dark tiled lines in the tiled display area B3. This allows for a smooth transition of brightness and chromaticity within the tiled display area B3, thereby improving the display quality of the display panel.

[0048] The orthographic projection of the first splicing line on the base substrate 100 and the orthographic projection of the second splicing line on the base substrate 100 at least partially do not overlap. The orthographic projection of the first splicing line on the base substrate 100 and the orthographic projection of the second splicing line on the base substrate 100 may partially overlap and partially do not overlap, or the orthographic projection of the first splicing line on the base substrate 100 and the orthographic projection of the second splicing line on the base substrate 100 may not overlap at all. When the orthographic projection of the first splicing line on the base substrate 100 and the orthographic projection of the second splicing line on the base substrate 100 do not overlap at all, the visual effect of improving the smooth transition of the brightness and chromaticity of the spliced ​​display area B3 is enhanced, further improving the display effect of the display panel. In some embodiments, the first type of pixel openings 300a and the pixel openings 300 of the first display area B1 are manufactured in a single process, while the second type of pixel openings 300b and the pixel openings 300 of the second display area B2 are manufactured in a single process. Furthermore, the pixel openings 300 of the first display area B1 and the pixel openings 300 of the second display area B2 are manufactured in different processes. The first type of target functional film layer 400a and the target functional film layer 400 of the first display area B1 are manufactured in a single process, while the second type of target functional film layer 400b and the target functional film layer 400 of the second display area B2 are manufactured in a single process. Furthermore, the target functional film layer 400 of the first display area B1 and the target functional film layer 400 of the second display area B2 are manufactured in different processes. These processes are all exposure processes, and the arrangement of the first type of pixel openings 300a and the second type of pixel openings 300b, as well as the arrangement of the first type of target functional film layer 400a and the second type of target functional film layer 400b, are adjusted by adjusting the pattern on the photolithography mask. This eliminates the need to increase the number of production steps, resulting in low production costs.

[0049] Specifically, the first type of pixel openings 300a and the pixel openings 300 in the first display area B1 are formed by using a first photolithography mask through an exposure process to transfer the pattern on the first photolithography mask to a portion of the pixel defining layer 200 in the tiled display area B3 and the entire pixel defining layer 200 in the first display area B1. The second type of pixel openings 300b and the pixel openings 300 in the second display area B2 are formed by using a second photolithography mask through an exposure process to transfer the pattern on the second photolithography mask to another portion of the pixel defining layer 200 in the tiled display area B3 and the entire pixel defining layer 200 in the second display area B2. The pattern on the first photolithography mask used to form the first type of pixel openings 300a and the pattern on the second photolithography mask used to form the second type of pixel openings 300b are complementary mosaic patterns, resulting in a mosaic distribution of the first type of pixel openings 300a and the second type of pixel openings 300b in the tiled display area B3.

[0050] Similarly, the first type of target functional film layer 400a and the target functional film layer 400 in the first display area B1 utilize a third photolithography mask through an exposure process to transfer the pattern on the third photolithography mask to a portion of the target functional film layer 400 in the tiled display area B3 and the entire target functional film layer 400 in the first display area B1. The second type of target functional film layer 400b and the target functional film layer 400 in the second display area B2 utilize a fourth photolithography mask through an exposure process to transfer the pattern on the fourth photolithography mask to another portion of the target functional film layer 400 in the tiled display area B3 and the entire target functional film layer 400 in the second display area B2. The pattern on the third photolithography mask used to form the first type of target functional film layer 400a and the pattern on the fourth photolithography mask used to form the second type of target functional film layer 400b are complementary mosaic patterns, resulting in a mosaic distribution of the first type of target functional film layer 400a and the second type of target functional film layer 400b. In other embodiments, the first type of pixel openings and the second type of pixel openings are distributed in other irregular forms, and the first type of target functional film layers and the second type of target functional film layers are distributed in other irregular forms in the splicing display area B3.

[0051] The first splicing line between the first type pixel opening 300a and the second type pixel opening 300b in the splicing display area B3 can be a straight line, a broken line or a curve, or can be randomly distributed in the splicing display area B3 (such as Figure 2 The first splicing lines being randomly distributed in the splicing display area B3 may refer to the first type of pixel openings 300a and the second type of pixel openings 300b being randomly and cross-distributed in the splicing display area B3.

[0052] Similarly, the second splicing line between the first target functional film layer 400a and the second target functional film layer 400b in the splicing display area B3 may also be a straight line, a broken line, a curve, or the like, or may be randomly distributed in the splicing display area B3. The second splicing line being randomly distributed in the splicing display area B3 may mean that the first target functional film layer 400a and the second target functional film layer 400b in the splicing display area B3 are randomly and cross-distributed.

[0053] In some embodiments, reference Figure 3 The target functional layer 400 includes a color filter layer 410, the color filter layer 410 includes a first color filter layer 410a and a second color filter layer 410b located in the splicing display area B3, the second splicing line includes a first sub-splicing line formed by the gap between the first color filter layer 410a and the second color filter layer 410b, and / or, reference Figure 4The target functional layer 400 includes an optical lens layer 420, and the optical lens layer 420 includes a first type of optical lens layer 420a and a second type of optical lens layer 420b located in the splicing display area B3. The second splicing line includes a second sub-splicing line formed by the gap between the first type of optical lens layer 420a and the second type of optical lens layer 420b; the orthographic projection of the first sub-splicing line formed by the color filter layer 410 on the base substrate 100 and the orthographic projection of the second sub-splicing line formed by the optical lens layer 420 on the base substrate 100 completely overlap or at least partially do not overlap.

[0054] The orthographic projection of the first sub-tiling line on the base substrate 100 and the orthographic projection of the second sub-tiling line on the base substrate 100 at least partially do not overlap. This may be the case where the orthographic projection of the first sub-tiling line on the base substrate 100 and the orthographic projection of the second sub-tiling line on the base substrate 100 partially overlap and partially do not overlap, or the orthographic projection of the first sub-tiling line on the base substrate 100 and the orthographic projection of the second sub-tiling line on the base substrate 100 do not overlap at all. When the orthographic projection of the first sub-tiling line on the base substrate 100 and the orthographic projection of the second sub-tiling line on the base substrate 100 do not overlap at all, the visual effect of improving the smooth transition of brightness and chromaticity of the tiled display area B3 is enhanced, further improving the display effect of the display panel.

[0055] In some embodiments, reference Figures 5 to 10 Among any adjacent color filter layers 410, one color filter layer 410 extends over the surface of the other color filter layer 410 facing away from the base substrate 100, forming a color filter hybrid layer between the adjacent color filter layers 410. The adjacent color filter layers 410 have different colors, and the color of the color filter hybrid layer is a hybrid of the colors of the adjacent color filter layers 410. The first sub-joining line between the first type color filter layer 410a and the second type color filter layer 410b can be formed by the color filter hybrid layer. Figure 3 The middle black area is the color filter mixed layer area between adjacent color filter layers 410. The color of the color filter layer 410 is the same as the color of the corresponding sub-pixel area.

[0056] In some embodiments, a sub-pixel region includes a light-emitting unit, which includes multiple functional film layers configured to emit display light. The functional film layers in a portion of the sub-pixel region are configured to emit display light of a first color, another portion of the sub-pixel region is configured to emit display light of a second color, and yet another portion of the sub-pixel region is configured to emit display light of a third color. The first, second, and third colors may be, but are not limited to, red, green, and blue. The color of the sub-pixel region is the same as the color of the display light emitted by the functional film layers in that sub-pixel region.

[0057] In some embodiments, the color filter layers may include a red color filter layer, a green color filter layer, and a blue color filter layer, each capable of transmitting red light, green light, and blue light, respectively. The color filter hybrid layer between adjacent color filter layers 410 may include a stacked arrangement of any two of the red color filter layer, the green color filter layer, and the blue color filter layer.

[0058] In some embodiments, the color filter layer is located in multiple sub-pixel areas, the color filter layer is arranged opposite to the pixel opening, and a black matrix (not shown) is arranged between adjacent color filter layers. The first sub-joining line between the first type of color filter layer and the second type of color filter layer can be formed by the black matrix, that is, Figure 3 The black area in the image is the black matrix. Setting the black matrix can also prevent color crosstalk between sub-pixel areas.

[0059] In some embodiments, when the target functional layer 400 includes a color filter layer 410 and an optical lens layer 4250, any two or three of the orthographic projection of the first stitching line on the base substrate 100, the orthographic projection of the first sub-stitching line on the base substrate 100, and the orthographic projection of the second sub-stitching line on the base substrate 100 do not at least partially overlap.

[0060] Any two or three of the orthographic projection of the first stitching line on the base substrate 100, the orthographic projection of the first sub-stitching line on the base substrate 100, and the orthographic projection of the second sub-stitching line on the base substrate 100 may at least partially not overlap. Any two or three of the orthographic projection of the first stitching line on the base substrate 100, the orthographic projection of the first sub-stitching line on the base substrate 100, and the orthographic projection of the second sub-stitching line on the base substrate 100 may partially overlap and partially overlap. Alternatively, any two or three of the orthographic projection of the first stitching line on the base substrate 100, the orthographic projection of the first sub-stitching line on the base substrate 100, and the orthographic projection of the second sub-stitching line on the base substrate 100 may not overlap at all.

[0061] In some embodiments, the orthographic projection of the first stitching line on the base substrate 100, the orthographic projection of the first sub-splice line on the base substrate 100, and the orthographic projection of the second sub-splice line on the base substrate 100 partially overlap and partially do not overlap. Figures 2 to 4 It is reflected in the figure that the orthographic projection of the first type pixel opening 300a on the base substrate 100, the orthographic projection of the first type color filter layer 410a on the base substrate 100, and the orthographic projection of the first type optical lens layer 420a on the base substrate 100 partially overlap and partially do not overlap; the orthographic projection of the second type pixel opening 300b on the base substrate 100, the orthographic projection of the second type color filter layer 410b on the base substrate 100, and the orthographic projection of the second type optical lens layer 420b on the base substrate 100 partially overlap.

[0062] In other embodiments, the positional relationship between the orthographic projection of the first stitching line on the base substrate, the orthographic projection of the first sub-splicing line on the base substrate, and the orthographic projection of the second sub-splicing line on the base substrate can be any relationship that satisfies the above limitations, which will not be elaborated here.

[0063] In this embodiment, the first and second color filter layers 410a and 410b are arranged in a mosaic pattern, and the first and second optical lens layers 420a and 420b are arranged in a mosaic pattern. In other embodiments, the first and second color filter layers are arranged in other irregular patterns, and the first and second optical lens layers are arranged in other irregular patterns.

[0064] The first sub-splicing line between the first color filter layer 410a and the second color filter layer 410b in the tiled display area B3 may also be a straight line, a broken line, a curve, or the like, or may be randomly distributed in the tiled display area B3. The first sub-splicing line being randomly distributed in the tiled display area B3 may refer to the first color filter layer 410a and the second color filter layer 410b being randomly and cross-distributed in the tiled display area B3.

[0065] The second sub-splicing line between the first type optical lens layer 420a and the second type optical lens layer 420b in the spliced ​​display area B3 may also be a straight line, a broken line, a curved line, or the like, or may be randomly distributed in the spliced ​​display area B3. The second sub-splicing line being randomly distributed in the spliced ​​display area B3 may refer to the first type optical lens layer 420a and the second type optical lens layer 420b being randomly and cross-distributed in the spliced ​​display area B3.

[0066] In some embodiments, the spacing between two adjacent sub-pixel regions in the first display area B1 is the same as the spacing between two adjacent sub-pixel regions in the second display area B2, and the spacing between two adjacent sub-pixel regions in the tiled display area B3 is different from the spacing between two adjacent sub-pixel regions in the first display area B1. The spacing between two adjacent sub-pixel regions in the tiled display area B3 can be irregular and disordered compared to the spacing between two adjacent sub-pixel regions in the first display area B1 and the second display area B2, thereby visually enhancing the smooth transition of brightness and color in the tiled display area B3. In other embodiments, the spacing between two adjacent sub-pixel regions in the first display area is the same as the spacing between two adjacent sub-pixel regions in the second display area, and the spacing between two adjacent sub-pixel regions in the tiled display area is the same as the spacing between two adjacent sub-pixel regions in the first display area.

[0067] In some embodiments, the multiple sub-pixel areas within the spliced ​​display area B3 include a first type of sub-pixel area defined by the first type of pixel opening 300a, and a second type of sub-pixel area defined by the second type of pixel opening 300b. The spacing distance between adjacent first type of sub-pixel areas and second type of sub-pixel areas is different from the spacing distance between two adjacent sub-pixel areas in the first display area and the second display area.

[0068] refer to Figure 2 , the spacing distance D11 between two adjacent pixel openings 300 in the first display area B1 and the spacing distance D12 between two adjacent pixel openings 300 in the second display area B2 are the same, and the spacing distance D13 between two adjacent pixel openings 300 in the spliced ​​display area B3 is different from the spacing distance D11 between two adjacent pixel openings 300 in the first display area B1. In other embodiments, the spacing distance between two adjacent pixel openings in the first display area is the same as the spacing distance between two adjacent pixel openings in the second display area, and the spacing distance between two adjacent pixel openings in the spliced ​​display area is the same as the spacing distance between two adjacent pixel openings in the first display area.

[0069] refer to Figure 3 The spacing distance D21 between two adjacent color filter layers 410 in the first display area B1 and the spacing distance D22 between two adjacent color filter layers 410 in the second display area B2 are the same, and the spacing distance D23 between two adjacent color filter layers 410 in the spliced ​​display area B3 is different from the spacing distance D21 between two adjacent color filter layers 410 in the first display area B1. In other embodiments, the spacing distance between two adjacent color filter layers in the first display area is the same as the spacing distance between two adjacent color filter layers in the second display area, and the spacing distance between two adjacent color filter layers in the spliced ​​display area is the same as the spacing distance between two adjacent color filter layers in the first display area.

[0070] refer to Figure 4 , the spacing distance D31 between two adjacent optical lens layers 420 in the first display area B1 and the spacing distance D32 between two adjacent optical lens layers 420 in the second display area B2 are the same, and the spacing distance D33 between two adjacent optical lens layers 420 in the spliced ​​display area B3 is different from the spacing distance D31 between two adjacent optical lens layers 420 in the first display area B1. In other embodiments, the spacing distance between two adjacent optical lens layers in the first display area is the same as the spacing distance between two adjacent optical lens layers in the second display area, and the spacing distance between two adjacent optical lens layers in the spliced ​​display area is the same as the spacing distance between two adjacent optical lens layers in the first display area.

[0071] In some embodiments, the spacing between any two adjacent sub-pixel regions within the tiled display area B3 is the same or different. The spacing between any two adjacent sub-pixel regions within the tiled display area B3 may be different, and may be partially the same and partially different, or completely different. The spacing between any two adjacent sub-pixel regions within the tiled display area B3 is irregular and disordered, visually enhancing the smooth transition of brightness and chromaticity in the tiled display area B3.

[0072] In some embodiments, the spacing distance D13 between any two adjacent pixel openings 300 in the spliced ​​display area B3 is the same or different. Figure 2 In the figure, the spacing distance D13 between any two adjacent pixel openings 300 in the spliced ​​display area B3 is the same as an illustration. The spacing distance D13 between any two adjacent pixel openings 300 in the spliced ​​display area B3 is not exactly the same. The spacing distance D13 between any two adjacent pixel openings 300 in the spliced ​​display area B3 may be partially the same and partially different, or the spacing distance D13 between any two adjacent pixel openings 300 in the spliced ​​display area B3 may be completely different.

[0073] In some embodiments, the spacing distance D23 between any two adjacent color filter layers 410 in the spliced ​​display area B3 is the same or different. Figure 3 In the figure, the spacing distance D23 between any two adjacent color filter layers 410 in the spliced ​​display area B3 is the same as an illustration. The spacing distance D23 between any two adjacent color filter layers 410 in the spliced ​​display area B3 is not completely the same. The spacing distance D23 between any two adjacent color filter layers 410 in the spliced ​​display area B3 may be partially the same and partially different, or the spacing distance D23 between any two adjacent color filter layers 410 in the spliced ​​display area B3 may be completely different.

[0074] In some embodiments, the spacing distance D33 between any two adjacent optical lens layers 420 in the spliced ​​display area B3 is the same or different. Figure 4 In the figure, the spacing distance D33 between any two adjacent optical lens layers 420 in the spliced ​​display area B3 is the same as an illustration. The spacing distance D33 between any two adjacent optical lens layers 420 in the spliced ​​display area B3 is not completely the same. The spacing distance D33 between any two adjacent optical lens layers 420 in the spliced ​​display area B3 may be partially the same and partially different, or the spacing distance D33 between any two adjacent optical lens layers 420 in the spliced ​​display area B3 may be completely different.

[0075] In some embodiments, the spacing distance between any two adjacent sub-pixel areas in the spliced ​​display area B3 is a randomly selected value within the range between the first preset maximum value and the first preset minimum value; the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm or 0.1 μm. If the difference between the first preset maximum value and the first preset minimum value is too large, it will affect the signal transmission between the two adjacent sub-pixel areas, and the spliced ​​display area B3 will be prone to visual unevenness, such as uneven brightness and color deviation. Therefore, the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.1 μm, which has a better effect of visually improving the smooth transition of brightness and chromaticity of the spliced ​​display area B3. It should be noted that the difference between the first preset maximum value and the first preset minimum value is not limited to this.

[0076] In some embodiments, the spacing D13 between any two adjacent pixel openings 300 in the tiled display area B3 is a randomly selected value within a range between a first preset maximum value and a first preset minimum value; the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the first preset maximum value and the first preset minimum value is not limited thereto.

[0077] In some embodiments, the spacing D23 between any two adjacent color filter layers 410 in the tiled display area B3 is a randomly selected value within a range between a first preset maximum value and a first preset minimum value; the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the first preset maximum value and the first preset minimum value is not limited thereto.

[0078] In some embodiments, the spacing D33 between any two adjacent optical lens layers 420 in the tiled display area B3 is a randomly selected value within a range between a first preset maximum value and a first preset minimum value; the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the first preset maximum value and the first preset minimum value is not limited thereto.

[0079] In some embodiments, the areas of the sub-pixel regions of the same color in the first display area B1 and the second display area B2 are the same, and the areas of the sub-pixel regions of the same color in the spliced ​​display area B3 are different from the areas of the sub-pixel regions of the same color in the first display area B1. The areas of the sub-pixel regions of the same color in the spliced ​​display area B3 are irregular and disordered compared to the areas of the sub-pixel regions of the same color in the first display area B1 and the second display area B2, visually enhancing the smooth transition of brightness and chromaticity in the spliced ​​display area B3. In other embodiments, the areas of the sub-pixel regions of the same color in the first display area and the second display area are the same, and the areas of the sub-pixel regions of the same color in the spliced ​​display area are the same as the areas of the sub-pixel regions of the same color in the first display area.

[0080] In this embodiment, the color of the sub-pixel region is the same as the color of the display light emitted by the functional film layer. The color of the sub-pixel region includes one of red, green and blue.

[0081] In some embodiments, the areas of the pixel openings 300 corresponding to the sub-pixel regions of the same color in the first display area B1 and the second display area B2 are the same, and the areas of the pixel openings 300 corresponding to the sub-pixel regions of the same color in the spliced ​​display area B3 are different from the areas of the pixel openings corresponding to the sub-pixel regions of the same color in the first display area B1. In other embodiments, the areas of the pixel openings corresponding to the sub-pixel regions of the same color in the first display area and the second display area are the same, and the areas of the pixel openings corresponding to the sub-pixel regions of the same color in the spliced ​​display area are the same as the areas of the pixel openings corresponding to the sub-pixel regions of the same color in the first display area. The color of the organic light-emitting layer formed in the pixel openings 300 is the same as the color of the corresponding sub-pixel regions.

[0082] In some embodiments, the color filter layer 410 corresponding to the sub-pixel regions of the same color in the first display area B1 and the second display area B2 has the same area, and the color filter layer 410 corresponding to the sub-pixel regions of the same color in the spliced ​​display area B3 has a different area than the color filter layer 410 corresponding to the sub-pixel regions of the same color in the first display area B1. In other embodiments, the color filter layer corresponding to the sub-pixel regions of the same color in the first display area and the second display area has the same area, and the color filter layer corresponding to the sub-pixel regions of the same color in the spliced ​​display area has the same area as the color filter layer corresponding to the sub-pixel regions of the same color in the first display area. The color filter layer 410 and the corresponding sub-pixel regions have the same color.

[0083] In some embodiments, the optical lens layer 420 corresponding to the sub-pixel regions of the same color in the first display area B1 and the second display area B2 has the same area, and the optical lens layer 420 corresponding to the sub-pixel regions of the same color in the spliced ​​display area B3 has a different area than the optical lens layer 420 corresponding to the sub-pixel regions of the same color in the first display area B1. In other embodiments, the optical lens layer corresponding to the sub-pixel regions of the same color in the first display area and the second display area has the same area, and the optical lens layer corresponding to the sub-pixel regions of the same color in the spliced ​​display area has the same area as the optical lens layer corresponding to the sub-pixel regions of the same color in the first display area. The optical lens layer 420 and the corresponding sub-pixel regions have the same color.

[0084] In some embodiments, the areas of multiple sub-pixel regions of the same color within the tiled display area B3 are the same or different. The areas of multiple sub-pixel regions of the same color within the tiled display area B3 may be different. Alternatively, the areas of multiple sub-pixel regions of the same color within the tiled display area B3 may be partially the same and partially different, or the areas of multiple sub-pixel regions of the same color within the tiled display area B3 may be completely different. The areas of multiple sub-pixel regions of the same color within the tiled display area B3 are irregular, resulting in a disordered design that visually enhances the smooth transition between brightness and chromaticity within the tiled display area B3.

[0085] In some embodiments, the areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same or different. Figure 2 In the figure, the areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same as each other. The areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are not exactly the same. The areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be partially the same and partially different, or the areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be completely different.

[0086] In some embodiments, the areas of the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same or different. Figure 3 In the figure, the areas of the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same as each other. The areas of the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are not exactly the same. The areas of the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be partially the same and partially different, or the areas of the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be completely different.

[0087] In some embodiments, the areas of the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same or different. Figure 4 In the figure, the areas of the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same as each other. The areas of the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are not exactly the same. The areas of the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be partially the same and partially different. Alternatively, the areas of the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may be completely different.

[0088] In some embodiments, the areas of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are randomly selected values ​​within the range between the second preset maximum value and the second preset minimum value; the difference between the second preset maximum value and the second preset minimum value is less than or equal to 0.15 μm 2 , for example 0 μm 2 , 0.05μm 2 or 0.15μm 2 The difference between the first preset maximum value and the first preset minimum value is too large, which affects the signal transmission between two adjacent sub-pixel areas, and the spliced ​​display area B3 is prone to visual unevenness, such as uneven brightness and color deviation. Therefore, the difference between the first preset maximum value and the first preset minimum value is less than or equal to 0.15μm. 2 , which visually improves the smooth transition of the brightness and chromaticity of the spliced ​​display area B3. It should be noted that the difference between the second preset maximum value and the second preset minimum value is not limited thereto.

[0089] The area of ​​the sub-pixel region is the cross-sectional area of ​​the sub-pixel region parallel to the surface of the base substrate 100 .

[0090] In some embodiments, the areas of the pixel openings 300 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are randomly selected values ​​within the range between the second preset maximum value and the second preset minimum value; the difference between the second preset maximum value and the second preset minimum value is less than or equal to 0.15 μm. 2 , for example 0 μm 2 , 0.05μm 2 or 0.15μm 2 In other embodiments, the difference between the second preset maximum value and the second preset minimum value is not limited thereto.

[0091] In some embodiments, the area of ​​the color filter layer 410 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 is a randomly selected value within the range between the second preset maximum value and the second preset minimum value; the difference between the second preset maximum value and the second preset minimum value is less than or equal to 0.15 μm 2 , for example 0 μm 2 , 0.05μm 2 or 0.15μm 2 In other embodiments, the difference between the second preset maximum value and the second preset minimum value is not limited thereto.

[0092] In some embodiments, the area of ​​the optical lens layer 420 corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 is a randomly selected value within the range between the second preset maximum value and the second preset minimum value; the difference between the second preset maximum value and the second preset minimum value is less than or equal to 0.15 μm 2 , for example 0 μm 2 , 0.05μm 2 or 0.15μm 2 In other embodiments, the difference between the second preset maximum value and the second preset minimum value is not limited thereto.

[0093] In some embodiments, the shapes of the multiple sub-pixel regions within the first display area B1 and the second display area B2 are the same, and the shapes of the multiple sub-pixel regions within the spliced ​​display area B3 are different from the shapes of the multiple sub-pixel regions within the first display area B1. The shapes of the multiple sub-pixel regions within the spliced ​​display area B3 are irregular and disordered compared to the shapes of the multiple sub-pixel regions within the first display area B1 and the second display area B2, visually enhancing the smooth transition of brightness and color in the spliced ​​display area B3. In other embodiments, the shapes of the multiple sub-pixel regions within the first display area and the second display area are the same, and the shapes of the multiple sub-pixel regions within the spliced ​​display area are the same as the shapes of the multiple sub-pixel regions within the first display area.

[0094] In some embodiments, the shapes of the plurality of pixel openings 300 in the first display area B1 and the second display area B2 are the same, and the shapes of the plurality of pixel openings 300 in the spliced ​​display area B3 are different from the shapes of the plurality of pixel openings 300 in the first display area B1. Figure 2 The shapes of the plurality of pixel openings 300 in the first display area B1 and the second display area B2 are the same, and the shapes of the plurality of pixel openings 300 in the spliced ​​display area B3 are the same as the shapes of the plurality of pixel openings 300 in the first display area B1. Figure 2 , the shape of the pixel opening 300 is a hexagon as an example. In other embodiments, the shape of the pixel opening includes but is not limited to one of a rectangle, a square, and a circle.

[0095] The shape of the pixel opening 300 is a cross-sectional shape of the pixel opening 300 parallel to the surface of the base substrate 100 .

[0096] In some embodiments, the shapes of the multiple color filter layers 410 in the first display area B1 and the second display area B2 are the same, and the shapes of the multiple color filter layers 410 in the spliced ​​display area B3 are different from the shapes of the multiple color filter layers 410 in the first display area B1. Figure 3 The shapes of the multiple color filter layers 410 in the first display area B1 and the second display area B2 are the same, and the shapes of the multiple color filter layers 410 in the spliced ​​display area B3 are the same as the shapes of the multiple color filter layers 410 in the first display area B1. Figure 3 In the embodiment, the color filter layer 410 is shaped as a hexagon. In other embodiments, the shape of the color filter layer includes but is not limited to a rectangle, a square, or a circle.

[0097] The shape of the color filter layer 410 is a cross-sectional shape of the color filter layer 410 parallel to the surface of the base substrate 100 .

[0098] In some embodiments, the shapes of the multiple optical lens layers 420 in the first display area B1 and the second display area B2 are the same, and the shapes of the multiple optical lens layers 420 in the spliced ​​display area B3 are different from the shapes of the multiple optical lens layers 420 in the first display area B1. Figure 4 The shapes of the multiple optical lens layers 420 in the first display area B1 and the second display area B2 are the same, and the shapes of the multiple optical lens layers 420 in the spliced ​​display area B3 are the same as the shapes of the multiple optical lens layers 420 in the first display area B1. Figure 4 , the shape of the optical lens layer 420 is circular as an example. In other embodiments, the shape of the optical lens layer 420 includes other shapes.

[0099] The shape of the optical lens layer 420 is a cross-sectional shape of the optical lens layer 420 parallel to the surface of the base substrate 100. The cross-sectional shape of the optical lens layer 420 perpendicular to the surface of the base substrate 100 may include one of a spherical segment, an ellipsoidal segment, and an inclined ellipsoidal segment.

[0100] In some embodiments, reference Figures 5 to 10The optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area B1 and the second display area B2 have the same cavity length, and the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the spliced ​​display area B3 have different cavity lengths from the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area B1. The cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the spliced ​​display area B3 are irregular and disordered compared to the cavity lengths of the light-emitting units of the sub-pixel areas of the same color in the first display area B1 and the second display area B2, visually enhancing the smooth transition of the brightness and chromaticity of the spliced ​​display area B3. In other embodiments, the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area and the second display area have the same cavity lengths, and the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the spliced ​​display area have the same cavity lengths as the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area.

[0101] The color of the light-emitting unit in the sub-pixel area is the same as the color of the display light emitted by the functional film layer.

[0102] The optical cavity of the light-emitting unit is formed by the multiple functional film layers through which light emitted by the light-emitting layer propagates within the display panel. Light emitted by the light-emitting layer propagates within the optical cavity and ultimately exits to the display side. For example, in a top-emitting display panel, the optical cavity of the light-emitting unit can be formed between the bottom anode and the upper color filter layer. If the light-emitting unit includes an optical lens layer, the optical cavity can be formed between the bottom anode and the upper optical lens layer.

[0103] In some embodiments, the light-emitting units in the sub-pixel areas of the same color in the first display area B1 and the second display area B2 have the same cavity length of the optical cavity, and the light-emitting units in the sub-pixel area of ​​the same color in the spliced ​​display area B3 have different cavity lengths from the light-emitting units in the sub-pixel area of ​​the same color in the first display area B1. This can be accomplished with the aid of a grayscale photolithography process, which is common knowledge in the art and will not be introduced in detail herein.

[0104] In some embodiments, the optical cavities corresponding to the light-emitting units of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 have the same or different lengths. The optical cavities corresponding to the light-emitting units of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 may have different lengths. This may mean that the lengths of the optical cavities corresponding to the light-emitting units of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are partially the same and partially different, or that the lengths of the optical cavities corresponding to the light-emitting units of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are completely different. The optical cavities corresponding to the light-emitting units of the multiple sub-pixel regions of the same color in the spliced ​​display area B3 have irregular lengths and present a disordered design, which visually enhances the smooth transition of brightness and chromaticity in the spliced ​​display area B3.

[0105] In some embodiments, the cavity length of the optical cavity corresponding to the light-emitting units of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is a randomly selected value within the range between the third preset maximum value and the third preset minimum value; the difference between the third preset maximum value and the third preset minimum value is less than or equal to 0.1μm, for example, 0μm, 0.05μm or 0.1μm. If the difference between the third preset maximum value and the third preset minimum value is too large, the spliced ​​display area B3 is prone to visual unevenness, such as uneven brightness and color deviation. Therefore, the difference between the third preset maximum value and the third preset minimum value is less than or equal to 0.1μm, which has a better effect of visually improving the smooth transition of brightness and chromaticity of the spliced ​​display area B3. It should be noted that the difference between the third preset maximum value and the third preset minimum value is not limited to this.

[0106] In some embodiments, reference Figure 5 The multiple functional film layers of the light-emitting unit include an OLED and an insulating layer 600 located between the OLED and the base substrate 100. The thickness H13 of the insulating layer 600 in the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness H11 of the insulating layer 600 in the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area B3 is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area B1. Figure 5 In the embodiment, the thickness H11 of the insulating layer 600 in the sub-pixel region of the same color in the first display area B1 is the same as the thickness H12 of the insulating layer 600 in the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the insulating layer in the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the insulating layer in the sub-pixel region of the same color in the first display area.

[0107] In some embodiments, the thickness H13 of the insulating layer 600 of multiple sub-pixel regions of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are the same, or the thickness H13 of the insulating layer 600 of multiple sub-pixel regions of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel regions of the same color in the spliced ​​display area B3 are not completely the same.

[0108] In some embodiments, the difference between the preset maximum and minimum values ​​of the thickness H13 of the insulating layer 600 in the multiple sub-pixel regions of the same color in the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum values ​​of the thickness of the insulating layer in the multiple sub-pixel regions of the same color in the tiled display area is not limited thereto.

[0109] In some embodiments, reference Figure 6 The multiple functional film layers of the light-emitting unit include an OLED and a reflective layer 700 located between the OLED and the base substrate 100; the thickness H23 of the reflective layer 700 in the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness H21 of the reflective layer 700 in the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the first display area B1. Figure 6 In the embodiment, the thickness H21 of the reflective layer 700 in the sub-pixel region of the same color in the first display area B1 is the same as the thickness H22 of the reflective layer 700 in the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the reflective layer in the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the reflective layer in the sub-pixel region of the same color in the first display area.

[0110] In some embodiments, the thickness H23 of the reflective layer 700 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are the same, or the thickness H23 of the reflective layer 700 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same.

[0111] In some embodiments, the difference between the preset maximum and minimum values ​​of the thickness H23 of the reflective layer 700 in the multiple sub-pixel regions of the same color in the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum values ​​of the thickness of the reflective layer in the multiple sub-pixel regions of the same color in the tiled display area is not limited thereto.

[0112] In some embodiments, reference Figure 7 The multiple functional film layers of the light-emitting unit include an OLED, a reflective layer 700 located between the OLED and the base substrate, and a cushion layer 800 located between the OLED and the reflective layer 700; the thickness H33 of the cushion layer 800 of the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness H31 of the cushion layer 800 of the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area B3 is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area B1. Figure 7 In the embodiment, the thickness H31 of the pad layer 800 of the sub-pixel region of the same color in the first display area B1 is the same as the thickness H32 of the pad layer 800 of the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the pad layer of the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the pad layer of the sub-pixel region of the same color in the first display area.

[0113] In some embodiments, the thickness H33 of the cushion layer 800 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are the same, or the thickness H33 of the cushion layer 800 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same.

[0114] In some embodiments, the difference between the preset maximum and minimum values ​​of the thickness H23 of the cushion layer 800 of the multiple sub-pixel regions of the same color within the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum values ​​of the thickness of the cushion layer of the multiple sub-pixel regions of the same color within the tiled display area is not limited thereto.

[0115] In some embodiments, reference Figure 8The multiple functional film layers of the light-emitting unit include an OLED, which includes an anode 500a, a cathode 500c, and an organic light-emitting layer 500b located between the anode 500a and the cathode 500c; the thickness H43 of the anode 500a of the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness H41 of the anode 500a of the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area B3 is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area B1. Figure 8 In the embodiment, the thickness H41 of the anode 500a of the sub-pixel region of the same color in the first display area B1 is the same as the thickness H42 of the anode 500a of the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the anode of the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the anode of the sub-pixel region of the same color in the first display area.

[0116] In some embodiments, the thickness H43 of the anode 500a of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are the same, or the thickness H43 of the anode 500a of multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same.

[0117] In some embodiments, the difference between the preset maximum and minimum thickness H43 of the anode 500a of the same color sub-pixel regions within the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum thickness H43 of the anode 500a of the same color sub-pixel regions within the tiled display area is not limited thereto.

[0118] In some embodiments, reference Figure 9 In the case where the multiple functional film layers of the light-emitting unit include a color filter layer 410, the thickness H53 of the color filter layer 410 in the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness of the color filter layer 410 in the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area. Figure 9In the embodiment, the thickness H51 of the color filter layer 410 of the sub-pixel region of the same color in the first display area B1 is the same as the thickness H52 of the color filter layer 410 of the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the color filter layer of the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the color filter layer of the sub-pixel region of the same color in the first display area.

[0119] In some embodiments, the thickness H53 of the color filter layer 410 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are the same, or the thickness H53 of the color filter layer 410 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same.

[0120] In some embodiments, the difference between the preset maximum and minimum thickness H53 of the color filter layer 410 of multiple sub-pixel regions of the same color within the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum thickness H53 of the color filter layer 410 of multiple sub-pixel regions of the same color within the tiled display area is not limited thereto.

[0121] In some embodiments, reference Figure 10 In the case where the multiple functional film layers of the light-emitting unit include the optical lens layer 420, the thickness H63 of the optical lens layer 420 of the sub-pixel area of ​​the same color in the spliced ​​display area B3 is different from the thickness H61 of the optical lens layer 420 of the sub-pixel area of ​​the same color in the first display area B1, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area B1. Figure 10 In the embodiment, the thickness H61 of the optical lens layer 420 in the sub-pixel region of the same color in the first display area B1 is the same as the thickness H62 of the optical lens layer 420 in the sub-pixel region of the same color in the second display area B2. In other embodiments, the thickness of the optical lens layer in the sub-pixel region of the same color in the spliced ​​display area is the same as the thickness of the optical lens layer in the sub-pixel region of the same color in the first display area.

[0122] In some embodiments, the thickness H63 of the optical lens layer 420 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 is the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are the same, or the thickness H63 of the optical lens layer 420 of multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same, so that the cavity lengths of the optical cavities corresponding to the multiple sub-pixel areas of the same color in the spliced ​​display area B3 are not completely the same.

[0123] In some embodiments, the difference between the preset maximum and minimum values ​​of the thickness H63 of the optical lens layer 420 of the multiple sub-pixel regions of the same color within the tiled display area B3 is less than or equal to 0.1 μm, for example, 0 μm, 0.05 μm, or 0.1 μm. In other embodiments, the difference between the preset maximum and minimum values ​​of the thickness of the optical lens layer of the multiple sub-pixel regions of the same color within the tiled display area is not limited thereto.

[0124] In some embodiments, the optical cavity can be defined by the reflective layer 700, the pad layer 800, the anode 500a, the organic light-emitting layer 500b, the cathode 500c, the color filter layer 410, and the optical lens layer 420. Alternatively, the optical cavity can be defined by the reflective layer 700, the pad layer 800, the anode 500a, the organic light-emitting layer 500b, and the cathode 500c. The light beam generated by the organic light-emitting layer 500b can be continuously reflected, generating strong multi-beam interference, thereby enhancing the display light emitted by the display panel and improving the luminous efficiency of the display panel. Specifically, the organic light-emitting layer 500b emits light beams in multiple directions. The light beams emitted by the organic light-emitting layer 500b pass through the pad layer 800 and reach the surface of the reflective layer 700 and are reflected toward the cathode side. The light beams emitted by the organic light-emitting layer 500b and the reflected light are superimposed, thereby improving the luminous efficiency of the display panel.

[0125] In some embodiments, the display panel further includes: a first encapsulation layer 900 a located between the cathode 500 c and the color filter layer 410 ; and a second encapsulation layer 900 b located between the color filter layer 410 and the optical lens layer 420 .

[0126] In some embodiments, the first encapsulation layer 900a includes a stacked first sub-inorganic encapsulation layer, an organic encapsulation layer, and a second sub-inorganic encapsulation layer; the first sub-inorganic encapsulation layer is located between the cathode 500c and the organic encapsulation layer, and the second sub-inorganic encapsulation layer is located between the organic encapsulation layer and the color filter layer 410.

[0127] In some embodiments, the display panel further includes: an optical adhesive layer 110 covering the surface of the optical lens layer 420 facing away from the base substrate 100 ; and a cover plate 120 located on the surface of the optical adhesive layer 110 facing away from the base substrate 100 .

[0128] Another embodiment of the present invention further provides a display device, comprising the display panel of the above embodiment.

[0129] The display device is, for example, a display module, various types of monitors, an in-vehicle display terminal, a mobile phone, a tablet computer, a laptop computer, or any other product or component with a display function. Other essential components of the display device are well understood by those skilled in the art and are not described here in detail, nor should they be construed as limitations of the present invention.

[0130] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A display panel, characterized in that: include: a base substrate, the base substrate comprising a plurality of display areas, the plurality of display areas comprising a first display area and a second display area adjacent to each other, and a spliced ​​display area located between the first display area and the second display area; a pixel defining layer, located on the base substrate, the pixel defining layer having a plurality of pixel openings spaced apart from each other, the pixel openings defining a plurality of sub-pixel regions in the display area on the base substrate; The sub-pixel area includes: A light-emitting unit, comprising a plurality of functional film layers, wherein the plurality of functional film layers are used to emit display light; The pixel openings in the splicing display area include first-type pixel openings and second-type pixel openings, a first splicing line is provided between the first-type pixel openings and the second-type pixel openings, and the first splicing line is formed by the pixel defining layer; And wherein, the multiple functional film layers include a target functional film layer, the target functional film layer in the splicing display area includes a first type of target functional film layer and a second type of target functional film layer, there is a second splicing line between the first type of target functional film layer and the second type of target functional film layer, and the orthographic projection of the first splicing line on the base substrate and the orthographic projection of the second splicing line on the base substrate at least partially do not overlap.

2. The display panel according to claim 1, wherein: The first type of pixel openings and the pixel openings of the first display area are manufactured through a single process, the second type of pixel openings and the pixel openings of the second display area are manufactured through a single process, and the pixel openings of the first display area and the pixel openings of the second display area are manufactured through different processes; The first type of target functional film layer and the target functional film layer of the first display area are produced through a single process, the second type of target functional film layer and the target functional film layer of the second display area are produced through a single process, and the target functional film layer of the first display area and the target functional film layer of the second display area are produced through different processes.

3. The display panel according to claim 1, wherein: The target functional layer includes a color filter layer, the color filter layer includes a first type of color filter layer and a second type of color filter layer located in the splicing display area, the second splicing line includes a first sub-splicing line formed by a gap between the first type of color filter layer and the second type of color filter layer, and / or The target functional layer includes an optical lens layer, the optical lens layer includes a first type of optical lens layer and a second type of optical lens layer located in the spliced ​​display area, and the second splicing line includes a second sub-splicing line formed by a gap between the first type of optical lens layer and the second type of optical lens layer; The orthographic projection of the first sub-stitching line formed by the color filter layer on the base substrate and the orthographic projection of the second sub-stitching line formed by the optical lens layer on the base substrate completely overlap or at least partially do not overlap.

4. The display panel according to claim 3, wherein: When the target functional layer includes the color filter layer and the optical lens layer, any two or three of the orthographic projection of the first stitching line on the base substrate, the orthographic projection of the first sub-stitching line on the base substrate, and the orthographic projection of the second sub-stitching line on the base substrate at least partially do not overlap.

5. The display panel according to claim 1, wherein: The spacing distance between two adjacent sub-pixel areas in the first display area is the same as the spacing distance between two adjacent sub-pixel areas in the second display area, and the spacing distance between two adjacent sub-pixel areas in the spliced ​​display area is different from the spacing distance between two adjacent sub-pixel areas in the first display area.

6. The display panel according to claim 5, wherein: The spacing distances between any two adjacent sub-pixel areas in the spliced ​​display area are the same or different.

7. The display panel according to claim 1, wherein: The areas of the sub-pixel regions of the same color in the first display area and the second display area are the same, and the areas of the sub-pixel regions of the same color in the spliced ​​display area are different from the areas of the sub-pixel regions of the same color in the first display area.

8. The display panel according to claim 7, wherein: The areas of the multiple sub-pixel regions of the same color in the spliced ​​display area are the same or different.

9. The display panel according to claim 1, wherein: The shapes of the multiple sub-pixel regions in the first display area and the second display area are the same, and the shapes of the multiple sub-pixel regions in the spliced ​​display area are different from the shapes of the multiple sub-pixel regions in the first display area.

10. The display panel according to any one of claims 1 to 9, characterized in that: The cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area and the second display area are the same, and the cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the spliced ​​display area are different from the cavity lengths of the optical cavities corresponding to the light-emitting units of the sub-pixel areas of the same color in the first display area.

11. The display panel according to claim 10, wherein: The cavity lengths of the optical cavities corresponding to the light-emitting units of the plurality of sub-pixel regions of the same color in the spliced ​​display area are identical or different.

12. The display panel according to claim 10, wherein: The multiple functional film layers of the light-emitting unit include an OLED and an insulating layer located between the OLED and the base substrate. The thickness of the insulating layer in the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the insulating layer in the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

13. The display panel according to claim 10, wherein: The multiple functional film layers of the light emitting unit include an OLED and a reflective layer located between the OLED and the base substrate; The thickness of the reflective layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the reflective layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the first display area.

14. The display panel according to claim 10, wherein: The multiple functional film layers of the light emitting unit include an OLED, a reflective layer located between the OLED and the base substrate, and a pad layer located between the OLED and the reflective layer; The thickness of the cushion layer of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the cushion layer of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the first display area.

15. The display panel according to claim 10, wherein: The multiple functional film layers of the light-emitting unit include an OLED, and the OLED includes an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode; The thickness of the anode of the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the anode of the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the spliced ​​display area is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the same color in the first display area.

16. The display panel according to claim 10, wherein: In the case where the multiple functional film layers of the light-emitting unit include a color filter layer, the thickness of the color filter layer in the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the color filter layer in the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

17. The display panel according to claim 10, wherein: In the case where the multiple functional film layers of the light-emitting unit include an optical lens layer, the thickness of the optical lens layer in the sub-pixel area of ​​the same color in the spliced ​​display area is different from the thickness of the optical lens layer in the sub-pixel area of ​​the same color in the first display area, so that the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color is different from the cavity length of the optical cavity corresponding to the sub-pixel area of ​​the color in the first display area.

18. A display device, characterized in that: A display panel comprising the display panel according to any one of claims 1 to 17.

Images