Display panel and display device

Abstract

Embodiments of the present application disclose a display panel. The display panel comprises a substrate (11), a plurality of sub-pixels (12), a first dimming layer (13), and a second dimming layer (14) which are sequentially arranged; the plurality of sub-pixels (12) comprise a first-type sub-pixel (121) and a second-type sub-pixel (122); the first-type sub-pixel (121) and the second-type sub-pixel (122) respectively form a first acute angle and a second acute angle with the substrate (11), the opening of the first acute angle faces a first direction, and the opening of the second acute angle faces a second direction; the edge of the sub-pixel (12) comprises a first edge portion and a second edge portion arranged in the first direction; the first dimming layer (13) comprises a plurality of light-concentrating structures (130); the plurality of light-concentrating structures (130) comprises a first-type light-concentrating structure (131) formed around the first-type sub-pixel (121); in an orthographic projection in the thickness direction of the substrate, the length of the projection of the first-type light-concentrating structure (131) on the first edge portion in the first direction is greater than the length of the projection of the first-type light-concentrating structure (131) on the second edge portion in the second direction.

Description

Display panel and display device

[0001] This application claims priority to Chinese Patent Application No. 202410692103.2, filed on May 30, 2024, entitled “Display Panel and Display Device”, the contents of which are to be understood as incorporated herein by reference. Technical Field

[0002] This application relates to, but is not limited to, the field of display technology, and in particular to a display panel and a display device. Background Technology

[0003] Organic light-emitting diode (OLED) panels and display panels utilizing light-emitting diode (LED) devices are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, laptops, and desktop computers due to their advantages such as high image quality, energy saving, thin body, and wide application range, becoming the mainstream in display devices. However, existing products suffer from color asymmetry due to significant visual color differences between the U-side and D / L / R-side, severely impacting the user experience. Summary of the Invention

[0004] The following is an overview of the subject matter described in detail herein, and this overview is not intended to limit the scope of the claims.

[0005] This application provides a display panel, including:

[0006] Substrate;

[0007] Multiple sub-pixels are formed on one side of the substrate. The multiple sub-pixels include a first type of sub-pixel and a second type of sub-pixel. The surface of the first type of sub-pixel near the substrate forms a first acute angle with the substrate, and the surface of the second type of sub-pixel near the substrate forms a second acute angle with the substrate. The opening of the first acute angle faces the first direction, and the opening of the second acute angle faces the second direction. The first direction and the second direction are parallel and opposite to each other, and are respectively parallel to the substrate. The edge of the sub-pixel includes a first tangent point and a second tangent point formed with the second direction. The second tangent point is located on the side of the first tangent point along a third direction. The third direction is parallel to the substrate and perpendicular to the first direction. The edge of the sub-pixel includes a first edge portion and a second edge portion located between the first tangent point and the second tangent point. The first edge portion and the second edge portion are arranged along the first direction.

[0008] A first dimming layer is formed on the side of the sub-pixel facing away from the substrate. The first dimming layer includes a plurality of light-focusing structures formed around at least a portion of the sub-pixels. The plurality of light-focusing structures includes a first type of light-focusing structure formed around the first type of sub-pixels. In orthographic projection along the thickness direction of the substrate, the length of the first type of light-focusing structure projected along the first direction onto the first edge is greater than the length of the first type of light-focusing structure projected along the second direction onto the second edge. And / or, the light-focusing structure includes a second type of light-focusing structure formed around the second type of sub-pixels. In orthographic projection along the thickness direction of the substrate, the length of the second type of light-focusing structure projected along the second direction onto the second edge is greater than the length of the second type of light-focusing structure projected along the first direction onto the first edge.

[0009] A second dimming layer is formed on the side of the first dimming layer away from the substrate, and the refractive index of the first dimming layer is lower than that of the second dimming layer.

[0010] This application also provides a display device, including the display panel provided above.

[0011] After reading and understanding the accompanying diagrams and detailed descriptions, the other aspects can be understood.

[0012] Overview of the attached figures

[0013] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0014] Figure 1 is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0015] Figure 2 is a cross-sectional view along P-P' in Figure 1;

[0016] Figure 3 is a schematic diagram of the structure of region M in Figure 1;

[0017] Figure 4 is an enlarged view of region Q in Figure 3;

[0018] Figure 5 is a partial enlarged view of another type of display panel;

[0019] Figure 6 is a schematic diagram of the structure of region M in Figure 1;

[0020] Figure 7 is a schematic diagram of the structure of region M in Figure 1;

[0021] Figure 8 is another cross-sectional view along P-P' in Figure 1;

[0022] Figure 9 is a schematic diagram of the structure of region M in Figure 1;

[0023] Figure 10 is a schematic diagram of the structure of region M in Figure 1;

[0024] Figure 11 is a schematic diagram of the structure of region M in Figure 1;

[0025] Figure 12 is a schematic diagram of the structure of region M in Figure 1;

[0026] Figure 13 is another cross-sectional view along P-P' in Figure 1;

[0027] Figure 14 is another cross-sectional view along P-P' in Figure 1;

[0028] Figure 15 is another cross-sectional view along P-P' in Figure 1;

[0029] Figure 16 is a schematic diagram of the structure of a display device provided in an embodiment of this application.

[0030] Detailed Explanation

[0031] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0032] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0034] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0035] As shown in Figures 1 to 4, according to an embodiment of this application, a display panel 1 includes a substrate 11, a plurality of sub-pixels 12, a first dimming layer 13, and a second dimming layer 14. The plurality of sub-pixels 12 are formed on one side of the substrate 11, including first-type sub-pixels 121 and second-type sub-pixels 122. The surface of the first-type sub-pixels 121 near the substrate 11 forms a first acute angle α1 with the substrate 11, and the surface of the second-type sub-pixels 122 near the substrate 11 forms a second acute angle α2 with the substrate 11. The opening of the first acute angle α1 faces a first direction D, and the opening of the second acute angle α2 faces a second direction U. The first direction D and the second direction U are parallel and opposite, and are both parallel to the substrate 11. The edges of the sub-pixels 12 include those facing the second direction U. Referring to Figures 4 and 5, the first tangent point N1 and the second tangent point N2 are formed by tangency towards U. The first tangent point N1 is the endpoint of the sub-pixel 12 in the L direction, and the second tangent point N2 is the endpoint of the sub-pixel 12 in the R direction. The second tangent point N2 is located on the side of the first tangent point N1 along the third direction R. The third direction R is parallel to the substrate 11 and perpendicular to the first direction D. The edge of the sub-pixel 12 includes a first edge portion L1 and a second edge portion L2 located between the first tangent point N1 and the second tangent point N2. The first edge portion L1 and the second edge portion L2 are arranged along the first direction D. A first dimming layer 13 is formed on the side of the sub-pixel 12 facing away from the substrate 11. The first dimming layer 13 includes a plurality of light-concentrating structures 130. The light-concentrating structures 130 are formed around at least a portion of the sub-pixels 12. The light-concentrating structures 130 include a first type of light-concentrating structure 131 formed around a first type of sub-pixel 121. In orthographic projection along the thickness direction of the substrate 11, the length of the first type of light-concentrating structure 131 projected along the first direction D on the first edge portion L1 is greater than the length of the first type of light-concentrating structure 131 projected along the second direction U on the second edge portion L2. And / or, the light-concentrating structure 130 includes a second type of light-concentrating structure 132 formed around a second type of sub-pixel 122. In orthographic projection along the thickness direction of the substrate 11, the length of the second type of light-concentrating structure 132 projected along the second direction U on the second edge portion L2 is greater than the length of the second type of light-concentrating structure 132 projected along the first direction D on the first edge portion L1. The second dimming layer 14 is formed on the side of the first dimming layer 13 away from the substrate 11, and the refractive index of the first dimming layer 13 is lower than the refractive index of the second dimming layer 14.

[0036] The display panel 1 provided in this embodiment includes a substrate 11, a plurality of sub-pixels 12, and a light-concentrating structure 130. Color shift of the display panel 1 can be detected along four directions: a first direction D, a second direction U, a fourth direction L, and a third direction R, to evaluate the color shift of the display panel 1. The first direction D, the third direction R, the second direction U, and the fourth direction L are arranged counterclockwise, with adjacent counterclockwise directions perpendicular to each other. The first direction D is parallel to and opposite to the second direction U, and the fourth direction L is parallel to and opposite to the third direction R. If the light attenuation of the sub-pixels 12 is inconsistent in the above four directions, color shift asymmetry will occur.

[0037] In the display panel 1, sub-pixels 12 are formed on one side of the substrate 11. Due to the difference in flatness of the film layer under different sub-pixels 12, multiple sub-pixels 12 can be divided into a first type of sub-pixels 121 and a second type of sub-pixels 122. The tilt directions of the first type of sub-pixels 121 and the second type of sub-pixels 122 are different. For example, the surface of the first type of sub-pixels 121 near the substrate 11 forms a first acute angle a1 with the substrate 11, and the surface of the second type of sub-pixels 122 near the substrate 11 forms a second acute angle a2 with the substrate 11. The opening of the first acute angle a1 is... The opening faces the first direction D, and the opening of the second acute angle a2 faces the second direction U. This results in the first type of sub-pixel 121 experiencing less light attenuation in the second direction U than the second type of sub-pixel 122 in the same direction. Furthermore, the light attenuation of the first type of sub-pixel 121 in the second direction U is less than its light attenuation in the first direction D, while the light attenuation of the second type of sub-pixel 122 in the second direction U is greater than its light attenuation in the first direction D. This causes color asymmetry in the display panel 1 between the first and second directions U. In the display panel 1 provided in this application, a light-concentrating structure 130 is provided on the side of the sub-pixel 12 facing away from the substrate 11 to increase the attenuation on the side of the sub-pixel 12 with less light attenuation, thereby improving the color asymmetry.

[0038] For example, in the display panel 1 provided in this application, the edge of the sub-pixel 12 includes a first tangent point N1 and a second tangent point N2 formed tangent to the second direction U. The second tangent point N2 is located on the side of the first tangent point N1 along the third direction R. That is, the first tangent point N1 is the end of the edge of the sub-pixel 12 closest to the fourth direction L, and the second tangent point N2 is the end of the edge of the sub-pixel 12 closest to the third direction R. The edge of the sub-pixel 12 includes a first edge portion L1 and a second edge portion L2 located between the first tangent point N1 and the second tangent point N2. The first edge portion L1 and the second edge portion L2 are arranged along the first direction D. In the sub-pixel 12, the light emitted from the first direction D side is mainly emitted by the second edge portion L2, and the light emitted from the second direction U side is mainly emitted by the first edge portion L1. A first dimming layer 13 and a second dimming layer 14 are sequentially disposed on the side of the sub-pixel 12 facing away from the substrate 11. The refractive index of the first dimming layer 13 is lower than that of the second dimming layer 14. The first dimming layer 13 and the second dimming layer 14 work together to adjust the large-angle light emitted by the sub-pixel 12, thereby improving the light emission efficiency at a positive viewing angle and accelerating the attenuation of large-angle light. The first dimming layer 13 includes a plurality of light-gathering structures 130, including a first-type light-gathering structure 131 formed around the first type of sub-pixel 121. In the orthogonal projection along the thickness direction of the substrate 11, the length of the first-type light-gathering structure 131 projected along the first direction D on the first edge L1 is greater than the length of the first-type light-gathering structure 131 projected along the second direction U on the second edge L2. Since the longer the length of the first-type light-gathering structure 131 projected along the preset direction on the edge of the sub-pixel 12, the better the adjustment effect of the first-type light-gathering structure 131 in that direction. Furthermore, since the light attenuation of the first-type sub-pixel 121 in the second direction U is less than that of the first-type sub-pixel 121, the light attenuation of the first-type sub-pixel 121 in the second direction U is greater than that of the first-type sub-pixel 121 in the second direction U, the light attenuation of the first-type sub-pixel 121 in the second direction U is greater than that of the first-type sub-pixel 121 in the second direction U. The light attenuation in the first direction D is relatively large. The light emitted from the second direction U side is mainly emitted from the first edge portion L1. Therefore, by setting the length of the projection of the first type of light-gathering structure 131 along the first direction D onto the first edge portion L1 to be larger, the attenuation adjustment effect of the first type of light-gathering structure 131 in the second direction U can be made larger, thereby improving the light attenuation of the first type of sub-pixel 121 in the second direction U. This reduces the attenuation difference between the first type of sub-pixel 121 and the second direction U, and further reduces the difference between the light attenuation of the first type of sub-pixel 121 and the second type of sub-pixel 122 in the second direction U, thus improving the color shift problem.

[0039] In the orthographic projection along the thickness direction of the substrate 11, the length of the projection of the first type of light-concentrating structure 131 along the first direction D onto the first edge portion L1 is: Figure 4 shows the orthographic projection along the thickness direction of the substrate 11. Dashed lines C1 and C2 represent the overlap between the projection of the first type of light-concentrating structure 131 along the first direction D onto the first edge portion L1 and the first edge portion L1. Since the projection of the first type of light-concentrating structure 131 along the first direction D onto the first edge portion L1 in Figure 4 can cover the first edge portion L1, therefore, the first type of light-concentrating structure... The length of the projection of the first light-concentrating structure 131 onto the first edge portion L1 along the first direction D is the same as the length of the first edge portion L1. The distance between the intersection point N1 of the dashed line C1 and the first edge portion L1 and the intersection point X0 of the two straight lines within the first edge portion L1 is the first length. The distance between the intersection point N2 of the dashed line C2 and the first edge portion L1 and the intersection point X0 of the two straight lines within the first edge portion L1 is the second length. The length of the projection of the first type of light-concentrating structure 131 onto the first edge portion L1 along the first direction D is the sum of the first length and the second length. As shown in Figure 5, which is an orthographic projection along the thickness direction of the substrate 11, dashed lines C1 and C2 represent the overlap range between the projection of the first type of light-gathering structure 131 along the first direction D onto the first edge portion L1 and the first edge portion L1. The projection of the first type of light-gathering structure 131 along the first direction D onto the first edge portion L1 does not cover the first edge portion L1. The distance between the intersection point X1 of dashed line C1 and the first edge portion L1 and the intersection point X0 of two straight lines within the first edge portion L1 is the first length. The distance between the intersection point X2 of dashed line C2 and the first edge portion L1 and the intersection point X0 of two straight lines within the first edge portion L1 is the second length. The length of the projection of the first type of light-gathering structure 131 along the first direction D onto the first edge portion L1 is the sum of the first length and the second length. In the examples of Figures 4 and 5, the length of the projection of the first type of light-gathering structure 131 along the second direction U onto the second edge portion L2 is 0.

[0040] That is, in the embodiments of Figures 4 and 5, since the first type of light-gathering structure 131 is located on the side of the sub-pixel 12 facing the second direction U, the first type of light-gathering structure 131 has a projection along the first direction D on the first edge portion L1, while the projection along the second direction U on L2 is 0. Conversely, if the first type of light-gathering structure 131 is located on the side of the sub-pixel 12 facing the first direction D, then the first type of light-gathering structure 131 has a projection along the second direction U on the second edge portion L2, while the projection along the first direction D on L1 is 0. Exemplarily, either the length of the projection of the first type of light-gathering structure 131 along the first direction D on the first edge portion L1 or the length of the projection of the first type of light-gathering structure 131 along the second direction U on the second edge portion L2 can be 0.

[0041] The light-gathering structure 130 may further include a second type of light-gathering structure 132 formed around the second type of sub-pixel 122. In orthographic projection along the thickness direction of the substrate 11, the length of the second type of light-gathering structure 132 projected along the second direction U onto the second edge L2 is greater than the length of the second type of light-gathering structure 132 projected along the first direction D onto the first edge L1. Since the longer the length of the second type of light-gathering structure 132 projected along the preset direction onto the edge of the sub-pixel 122, the better the adjustment effect of the second type of light-gathering structure 132 in that direction. Furthermore, since the light attenuation of the second type of sub-pixel 122 in the first direction D is less than that in the second direction U, the light attenuation of the second type of sub-pixel 122 is also less. Regarding the attenuation level, the light emitted from the first direction D side is mainly emitted from the second edge L2. Therefore, by setting the projection length of the second type of light-gathering structure 132 along the second direction U onto the second edge L2 to be larger, the attenuation adjustment effect of the second type of light-gathering structure 132 in the first direction D can be made larger, thereby improving the attenuation level of the second type of sub-pixel 122 in the first direction D. This reduces the attenuation difference between the light from the second type of sub-pixel 122 in the first direction D and the light from the second direction U, and further reduces the difference between the light attenuation level of the second type of sub-pixel 122 in the first direction D and the attenuation level of the first type of sub-pixel 121 in the first direction D, thus improving the color shift problem.

[0042] For example, either the length of the second type of light-concentrating structure 132 projected onto the second edge portion L2 along the second direction U and the length of the second type of light-concentrating structure 132 projected onto the first edge portion L1 along the first direction D can be 0.

[0043] In the display panel 1 provided in this application embodiment, the color shift problem is improved by reducing the difference between the attenuation degree of the first type of sub-pixel 121 in the second direction U and the light attenuation degree of the second type of sub-pixel 122 in the second direction U, and / or by reducing the difference between the light attenuation degree of the second type of sub-pixel 122 in the first direction D and the attenuation degree of the first type of sub-pixel 121 in the first direction D, thereby improving the display effect of the display panel 1.

[0044] In one feasible implementation, as shown in FIG2, the sub-pixel 12 includes a first electrode, a light-emitting layer, and a second electrode stacked along the direction away from the substrate 11. The surface of the first electrode of the first type of sub-pixel 121 near the substrate 11 forms a first acute angle a1 with the substrate 11, and the surface of the first electrode of the second type of sub-pixel 122 near the substrate 11 forms a second acute angle a2 with the substrate 11. The opening of the first acute angle a1 faces a first direction D, and the opening of the second acute angle a2 faces a second direction U. The tilt directions of the first electrode of the first type of sub-pixel 121 and the first electrode of the second type of sub-pixel 122 are different, thus causing the tilt directions of the first type of sub-pixel 121 and the second type of sub-pixel 122 to be different.

[0045] For example, as shown in FIG2, in the first type of sub-pixel 121, the distance between the end closest to the second direction U and the substrate 11 is a first distance H1, and the distance between the end closest to the first direction D and the substrate 11 is a second distance H2. The first distance H1 is less than the second distance H2, and the difference between the first distance H1 and the second distance H2 is 0.03μm to 0.08μm. In the second type of sub-pixel 122, the distance between the end closest to the second direction U and the substrate 11 is a third distance H3, and the distance between the end closest to the first direction D and the substrate 11 is a fourth distance H4. The fourth distance H4 is less than the third distance H3, and the difference between the fourth distance H4 and the third distance H3 is 0.06μm to 0.08μm.

[0046] In the above embodiments, as shown in FIG3, the plurality of sub-pixels 12 include at least three colors of sub-pixels 12, and the plurality of sub-pixels 12 include different first color sub-pixels 123, second color sub-pixels 124 and third color sub-pixels 125. The first type of sub-pixels 121 includes the first color sub-pixels 123, and the second type of sub-pixels 122 includes the second color sub-pixels 124 and the third color sub-pixels 125.

[0047] Among them, the first color sub-pixel 123 can be the green sub-pixel 12, the second color sub-pixel 124 can be the blue sub-pixel 12, and the third color sub-pixel 125 can be the red sub-pixel 12.

[0048] For example, the shape of the sub-pixel 12 projected onto the substrate 11 can be a regular shape, such as a rectangle, circle, polygon, etc., or it can be an irregular shape. This application does not make any special limitation on this.

[0049] When the rectangle is rectangular and its two opposite sides are parallel to the first direction D, there can be multiple first tangent points N1 and second tangent points N2. Any one of the first tangent points N1 and any one of the second tangent points N2 can be used to divide the first edge L1 and the second edge L2.

[0050] In one feasible implementation, as shown in Figures 3 and 4, the light-concentrating structure 130 includes a first type of light-concentrating structure 131, which is disposed around at least a portion of the first edge portion L1.

[0051] In the above method, the first type of light-concentrating structure 131 can be disposed only around at least a portion of the first edge portion L1, and not around the second edge portion L2, thereby adjusting the light emitted only from the first edge portion L1 side to improve the light attenuation rate and degree of the first type of sub-pixel 121 in the second direction U, and reduce the color shift difference of the first type of sub-pixel 121 in the first direction D and the second direction U. Furthermore, since the light attenuation degree of the first type of sub-pixel 121 in the second direction U is smaller than that of the second type of sub-pixel 122 in the second direction U, when the light attenuation rate and degree of the first type of sub-pixel 121 in the second direction U are improved by the first type of light-concentrating structure 131, the difference between the light attenuation degree of the first type of sub-pixel 121 and the second type of sub-pixel 122 in the second direction U can be reduced, thereby improving the color shift problem of the display panel 1.

[0052] In one feasible implementation, as shown in Figures 3 and 4, the first type of light-concentrating structure 131 may include a strip structure disposed around a portion of the first type of sub-pixel 121 in the circumferential direction. Alternatively, as shown in Figure 6, the first type of light-concentrating structure 131 may include a plurality of first type of light-concentrating portions 1311, which are arranged along a portion of the first type of sub-pixel 121 in the circumferential direction.

[0053] In the above embodiments, the first type of light-concentrating structure 131 includes a strip structure disposed around a portion of the first type of sub-pixel 121 in the circumferential direction. The strip structure design allows the length of the projection of the first type of light-concentrating structure 131 onto the first edge portion L1 along the first direction D to be larger, and also facilitates its fabrication.

[0054] In the above embodiments, the first type of light-concentrating structure 131 includes a plurality of first type of light-concentrating parts 1311, which are arranged along a portion of the circumference of the first type of sub-pixel 121. There are gaps between adjacent first type of light-concentrating parts 1311, which on the one hand can make the first type of light-concentrating parts 1311 evenly distributed, so as to make the adjustment effect more uniform, and on the other hand, can facilitate the control of the overall adjustment degree of the first type of light-concentrating structure 131 under the premise of uniform adjustment, so as to reduce the attenuation difference of the first direction D and the second direction U light of the first type of sub-pixel 121.

[0055] For example, when the first type of light-concentrating structure 131 includes a plurality of first type of light-concentrating parts 1311, the length of the first type of light-concentrating structure 131 projected onto the first edge portion L1 along the first direction D is the sum of the lengths of the plurality of first type of light-concentrating parts 1311 projected onto the first edge portion L1 along the first direction D.

[0056] In one feasible implementation, as shown in FIG7, the light-concentrating structure 130 includes a first type of light-concentrating structure 131, which is arranged circumferentially around the first type of sub-pixel 121. The first type of light-concentrating structure 131 may include a first part 1312 and a second part 1313. The first part 1312 is a strip structure arranged around a portion of the first type of sub-pixel 121 in the circumferential direction. The second part 1313 includes a plurality of first type of light-concentrating parts 1311, which are arranged along a portion of the first type of sub-pixel 121 in the circumferential direction.

[0057] In the above embodiments, the first type of focusing structure 131 may include either a first portion 1312 distributed in a strip or multiple first type of focusing parts 1311 distributed at intervals. Within the same distribution range, the first portion 1312 of the strip structure has a wider range of receiving light from the side view angle, and therefore has a greater effect on enhancing the attenuation degree. The spaced first type of focusing parts 1311 have gaps between them, and light from the side view angle can propagate through the gaps. As a result, the spaced first type of focusing parts 1311 have a smaller range of receiving light from the side view angle, and therefore have a smaller effect on enhancing the attenuation degree. Therefore, the strip structure or multiple spaced first type of focusing parts 1311 can be set according to the adjustment requirements of different directions.

[0058] In one feasible implementation, as shown in FIG7, the first portion 1312 is disposed around the first edge portion L1, and the second portion 1313 is disposed around the second edge portion L2.

[0059] In the above embodiment, since the light attenuation degree of the first type of sub-pixel 121 in the second direction U is less than its attenuation degree in the first direction D, the first part 1312 is arranged around the first edge L1 and the second part 1313 is arranged around the second edge L2. This allows the adjustment effect of the light of the first type of sub-pixel 121 in the second direction U to be greater than its adjustment effect in the first direction D. This reduces the difference between the light attenuation degree of the first type of sub-pixel 121 in the second direction U and its attenuation degree in the first direction D, thereby improving color shift.

[0060] In one feasible implementation, as shown in FIG7, the light-focusing structure 130 may further include a third light-focusing structure 133 formed around the second type of sub-pixel 122, the third type of light-focusing structure 133 being a ring structure arranged around the second type of sub-pixel 122.

[0061] In the above embodiments, the light-concentrating structure 130 may include a first type of light-concentrating structure 131 and a third type of light-concentrating structure 133. The first type of light-concentrating structure 131 is formed around the first type of sub-pixel 121, and the third type of light-concentrating structure 133 is formed around the second type of sub-pixel 122. The third type of light-concentrating structure 133 is used to surround the second type of sub-pixel 122 in all directions, changing the light emitted from the side view of the second type of sub-pixel 122 to the light emitted from the front view, thereby increasing the amount of light emitted from the front view and improving the brightness of the display panel 1. Moreover, the first type of light-concentrating structure 131 is configured to have a first portion 1312 and a second portion 1313. The first type of light-concentrating structure 131 can reduce the difference between the attenuation degree of the first type of sub-pixel 121 in the second direction U and its attenuation degree in the first direction D, thereby improving color shift. Furthermore, since the attenuation degree of the first type of sub-pixel 121 in the first direction D is greater than that of the second type of sub-pixel 122 in the first direction D, by setting a third type of light-gathering structure 133, and the third type of light-gathering structure 133 being strip-shaped on the second edge side of the second type of sub-pixel 122, the adjustment effect is strong, which can increase the attenuation rate of the second type of sub-pixel 122 in the first direction D. The second part 1313 is set around the second edge portion L2 of the first type of sub-pixel 121 and includes a plurality of spaced first type of light-gathering parts 1311. The plurality of first type of light-gathering parts 1311 have a weaker adjustment effect than the strip-shaped third type of light-gathering structure 133, thereby reducing the difference in attenuation degree between the first type of sub-pixel 121 and the second type of sub-pixel 122 in the first direction D, and thus improving color shift.

[0062] In one feasible implementation, as shown in Figures 8 and 9, the light-concentrating structure 130 includes a second type of light-concentrating structure 132, which is disposed around at least a portion of the second edge portion L2.

[0063] In the above embodiments, the second type of light-concentrating structure 132 may be disposed only around at least a portion of the second edge portion L2 of the second type of sub-pixel 122, and not around the first edge portion L1 of the second type of sub-pixel 122. This allows adjustment of the light emitted only from one side of the second edge portion L2 of the second type of sub-pixel 122, thereby increasing the light attenuation rate and degree of the second type of sub-pixel 122 in the first direction D and reducing the color shift difference between the second type of sub-pixel 122 in the first direction D and the second direction U. Furthermore, since the light attenuation degree of the second type of sub-pixel 122 in the first direction D is smaller than that of the first type of sub-pixel 121 in the first direction D, when the second type of light-concentrating structure 132 increases the light attenuation rate and degree of the second type of sub-pixel 122 in the first direction D, the difference between the light attenuation degree of the second type of sub-pixel 122 and the first type of sub-pixel 121 in the first direction D can be reduced, thus improving the color shift problem of the display panel 1.

[0064] In one feasible implementation, as shown in FIG9, the second type of light-concentrating structure 132 includes a strip structure disposed around a portion of the second type of sub-pixel 122 in the circumferential direction, or, as shown in FIG10, the second type of light-concentrating structure 132 includes a plurality of second type light-concentrating portions 1321, which are arranged along a portion of the second type of sub-pixel 122 in the circumferential direction.

[0065] In the above embodiments, the second type of light-concentrating structure 132 includes a strip structure arranged around a portion of the second type of sub-pixel 122 in the circumferential direction. The strip structure design allows the length of the projection of the second type of light-concentrating structure 132 along the second direction U onto the second edge portion L2 to be larger, and also facilitates its fabrication.

[0066] In the above embodiments, the second type of light-concentrating structure 132 includes a plurality of second type of light-concentrating parts 1321, which are arranged along a portion of the circumference of the second type of sub-pixel 122. There are gaps between adjacent second type of light-concentrating parts 1321, which on the one hand can make the second type of light-concentrating parts 1321 evenly distributed, so as to make the adjustment effect more uniform, and on the other hand, can facilitate the control of the overall adjustment degree of the second type of light-concentrating structure 132 under the premise of uniform adjustment, so as to reduce the attenuation difference of the first direction D and the second direction U light of the second type of sub-pixel 122.

[0067] For example, when the second type of light-concentrating structure 132 includes a plurality of second type of light-concentrating parts 1321, the length of the second type of light-concentrating structure 132 projected onto the second edge portion L2 along the second direction U is the sum of the lengths of the plurality of second type of light-concentrating parts 1321 projected onto the second edge portion L2 along the second direction U.

[0068] In one feasible implementation, as shown in FIG11, the light-concentrating structure 130 includes a second type of light-concentrating structure 132. The second type of light-concentrating structure 132 includes a third portion 1322 and a fourth portion 1323 arranged and spaced apart along a third direction R. The third portion 1322 includes a first sub-part 1324 disposed around a portion of a first edge and a second sub-part 1325 disposed around a portion of a second edge. In an orthographic projection along the thickness direction of the substrate 11, the length of the first sub-part 1324 is less than the length of the second sub-part 1325. The fourth portion 1323 includes a third sub-part 1326 disposed around a portion of the first edge and a fourth sub-part 1327 disposed around a portion of the second edge. In an orthographic projection along the thickness direction of the substrate 11, the length of the third sub-part 1326 is less than the length of the fourth sub-part 1327.

[0069] In the above embodiment, in the orthogonal projection along the thickness direction of the substrate 11, by setting the length of the first sub-part 1324 to be less than the length of the second sub-part 1325 and the length of the third sub-part 1326 to be less than the length of the fourth sub-part 1327, the length of the second type of light-gathering structure 132 projected along the second direction U on the second edge L2 is greater than the length of the second type of light-gathering structure 132 projected along the first direction D on the first edge L1. As a result, the adjustment effect of the second type of light-gathering structure 132 on the attenuation degree of light emitted in the second direction U is less than the adjustment effect on the attenuation degree of light emitted in the first direction D. Based on the fact that the light attenuation degree of the second type of sub-pixel 122 in the second direction U is greater than the light attenuation degree in the first direction D, the difference between the light attenuation degree of the second type of sub-pixel 12 in the second direction U and the attenuation degree in the first direction D is reduced by the above adjustment.

[0070] Furthermore, since the third part 1322 and the fourth part 1323 can adjust the light emission of the second type sub-pixel 122 in the fourth direction L and the third direction R, the light attenuation of the second type sub-pixel 122 in the first direction D, the fourth direction L and the third direction R is greater and the light emission is reduced more, while the light attenuation of the second type sub-pixel 122 in the second direction U is smaller and the light emission is reduced less. This can improve the brightness ratio of the second type sub-pixel 122 in the second direction U, so that the brightness change trend of the second type sub-pixel 122 in the second direction U matches the brightness change trend of the first direction D, the fourth direction L and the third direction R, thereby reducing color shift.

[0071] In one feasible implementation, as shown in FIG11, the third part 1322 and the fourth part 1323 are symmetrically arranged along the first direction D and the second direction U, respectively, so as to realize symmetrical adjustment of the light emitted by the second type of sub-pixel 122 and improve the display effect.

[0072] In one feasible implementation, as shown in FIG11, the third part 1322 may include a strip structure disposed around a portion of the second type of sub-pixel 122 in the circumferential direction, or, as shown in FIG12, the third part 1322 may include a plurality of second type light-concentrating parts 1321 arranged along a portion of the second type of sub-pixel 122 in the circumferential direction; the fourth part 1323 may include a strip structure disposed around a portion of the second type of sub-pixel 122, or, the fourth part 1323 may include a plurality of second type light-concentrating parts 1321 arranged along a portion of the second type of sub-pixel 122 in the circumferential direction.

[0073] In the above embodiments, the third part 1322 and the fourth part 1323 respectively include strip-shaped structures arranged around the circumferential portion of the second type of sub-pixel 122. The strip-shaped structure design allows for a larger projection length of the second sub-parts 1325 and 1327 in the third part 1322 and the fourth sub-parts 1323 onto the second edge portion L2 along the second direction U, and also allows for a larger projection length of the first sub-parts 1324 and 1326 in the third part 1322 and the fourth sub-parts 1323 onto the first edge portion L1 along the first direction D; on the other hand, it facilitates fabrication.

[0074] In the above embodiments, the third part 1322 and the fourth part 1323 respectively include a plurality of second-type light-concentrating parts 1321. The plurality of second-type light-concentrating parts 1321 are arranged along a portion of the circumference of the second-type sub-pixel 122, and there are gaps between adjacent second-type light-concentrating parts 1321. This allows the second-type light-concentrating parts 1321 to be evenly distributed, so as to make the adjustment effect more uniform. On the other hand, it makes it easier to control the overall adjustment degree of the second-type light-concentrating structure 132 under the premise of uniform adjustment, so as to reduce the attenuation difference of the first direction D and the second direction U light of the second-type sub-pixel 122.

[0075] For example, when the second type of light-concentrating structure 132 includes a plurality of second type of light-concentrating parts 1321, the length of the second type of light-concentrating structure 132 projected onto the second edge portion L2 along the second direction U is the sum of the lengths of the plurality of second type of light-concentrating parts 1321 projected onto the second edge portion L2 along the second direction U, and the length of the second type of light-concentrating structure 132 projected onto the first edge portion L1 along the first direction D is the sum of the lengths of the plurality of second type of light-concentrating parts 1321 projected onto the first edge portion L1 along the first direction D.

[0076] In one possible implementation, as shown in FIG8, the display panel may further include a functional layer 15 located on the side of the sub-pixel 12 facing away from the substrate 11, and a light-concentrating structure 130 is formed on the side of the functional layer 15 facing away from the substrate 11.

[0077] As shown in FIG8 in the above embodiment, the functional layer 15 includes an encapsulation layer 151, which is used to encapsulate the sub-pixel 12. The encapsulation layer 151 may include an inorganic layer, an organic layer, and an inorganic layer stacked along the direction away from the substrate 11. The organic layer can play a planarization role, making the side of the encapsulation layer 151 away from the substrate 11 a flat surface. The light-concentrating structure 130 is formed on the side of the encapsulation layer 151 away from the substrate 11. On the one hand, this allows the light-concentrating structure 130 to be formed on a flat surface, improving the performance of the light-concentrating structure 130. On the other hand, it can ensure the encapsulation effect of the encapsulation layer 151 on the sub-pixel 12, thereby ensuring the light-emitting yield of the sub-pixel 12.

[0078] As shown in Figure 13, the functional layer 15 may also include a touch layer 152 located on the side of the encapsulation layer 151 away from the substrate 11, and the light-concentrating structure 130 may be formed on the side of the touch layer 152 away from the substrate 11.

[0079] The second dimming layer 14 is positioned in contact with the first dimming layer 13 to ensure that light converges when it enters the high refractive index medium from the low refractive index medium.

[0080] In one feasible implementation, the surface of the light-concentrating structure 130 facing away from the substrate 11 protrudes to the side away from the substrate 11, thereby achieving a concentrating effect on side-view light to convert side-view light into front-view light, thereby improving the attenuation rate.

[0081] In one feasible implementation, as shown in Figures 13, 14, and 15, the cross-sectional shape of the light-concentrating structure 130 along the thickness direction of the substrate 11 can be set to a semi-circle, a triangle, or a trapezoid. A hemispherical structure with a semi-circular cross-section can focus light through the arc-shaped surface corresponding to the semi-circle. A prism structure with a trapezoidal or triangular cross-section can focus light through its inclined side surfaces. Furthermore, the light-concentrating structure 130 with the above shapes is easy to fabricate, has a high yield, and its parameters are easy to control.

[0082] An embodiment of this application also provides a display device 2, as shown in FIG16, which includes any of the display panels 1 provided in the above embodiments.

[0083] In this display device 2, since the light-concentrating structure 130 is used in the display panel 1 to uniformly adjust the attenuation rate of light emitted from the sub-pixels 12 in different directions, the color deviation problem can be improved, thereby improving the display effect of the display panel 1, and thus improving the performance of the display device 2, which helps to improve the user experience.

[0084] The display device 2 can be a mobile terminal such as a mobile phone or laptop, or a fixed terminal such as a television or computer monitor, or a wearable device such as a watch. This application does not make any special limitations.

[0085] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, comprising: Substrate; Multiple sub-pixels are formed on one side of the substrate. The multiple sub-pixels include a first type of sub-pixel and a second type of sub-pixel. The surface of the first type of sub-pixel near the substrate forms a first acute angle with the substrate, and the surface of the second type of sub-pixel near the substrate forms a second acute angle with the substrate. The opening of the first acute angle faces a first direction, and the opening of the second acute angle faces a second direction. The first direction and the second direction are parallel and opposite to each other, and are respectively parallel to the substrate. The edge of the sub-pixel includes a first tangent point and a second tangent point formed by being tangent to the second direction. The second tangent point is located on the side of the first tangent point along a third direction. The third direction is parallel to the substrate and perpendicular to the first direction. The edge of the sub-pixel includes a first edge portion and a second edge portion located between the first tangent point and the second tangent point. The first edge portion and the second edge portion are arranged along the first direction. A first dimming layer is formed on the side of the sub-pixel facing away from the substrate. The first dimming layer includes a plurality of light-focusing structures formed around at least a portion of the sub-pixels. The plurality of light-focusing structures includes a first type of light-focusing structure formed around the first type of sub-pixels. In orthographic projection along the thickness direction of the substrate, the length of the first type of light-focusing structure projected along the first direction onto the first edge is greater than the length of the first type of light-focusing structure projected along the second direction onto the second edge. And / or, the light-focusing structure includes a second type of light-focusing structure formed around the second type of sub-pixels. In orthographic projection along the thickness direction of the substrate, the length of the second type of light-focusing structure projected along the second direction onto the second edge is greater than the length of the second type of light-focusing structure projected along the first direction onto the first edge. A second dimming layer is formed on the side of the first dimming layer away from the substrate, and the refractive index of the first dimming layer is lower than that of the second dimming layer.

2. The display panel according to claim 1, wherein, The light-concentrating structure includes the first type of light-concentrating structure, which is disposed around at least a portion of the first edge portion.

3. The display panel according to claim 2, wherein, The first type of light-gathering structure includes a strip structure disposed around a portion of the first type of sub-pixel in the circumferential direction, or the first type of light-gathering structure includes a plurality of first type light-gathering parts arranged along a portion of the first type of sub-pixel in the circumferential direction.

4. The display panel according to claim 1, wherein, The light-gathering structure includes a first type of light-gathering structure, which is arranged circumferentially around the first type of sub-pixels. The first type of light-gathering structure includes a first part and a second part. The first part is a strip-shaped structure arranged around a portion of the first type of sub-pixels in the circumferential direction. The second part includes a plurality of first type light-gathering parts, which are arranged along a portion of the first type of sub-pixels in the circumferential direction.

5. The display panel according to claim 4, wherein, The first portion is disposed around the first edge portion, and the second portion is disposed around the second edge portion.

6. The display panel according to claim 5, wherein, The light-gathering structure also includes a third type of light-gathering structure formed around the second type of sub-pixels, wherein the third type of light-gathering structure is a ring structure arranged around the second type of sub-pixels.

7. The display panel according to claim 1, wherein, The light-concentrating structure includes the second type of light-concentrating structure, which is disposed around at least a portion of the second edge portion.

8. The display panel according to claim 7, wherein, The second type of light-gathering structure includes a strip structure disposed around a portion of the second type of sub-pixel in the circumferential direction, or the second type of light-gathering structure includes a plurality of second type light-gathering parts arranged along a portion of the second type of sub-pixel in the circumferential direction.

9. The display panel according to claim 1, wherein, The light-gathering structure includes the second type of light-gathering structure, which includes a third part and a fourth part arranged and spaced apart along the third direction. The third part includes a first sub-part disposed around a portion of the first edge and a second sub-part disposed around a portion of the second edge. In the orthographic projection along the thickness direction of the substrate, the length of the first sub-part is less than the length of the second sub-part. The fourth portion includes a third sub-part disposed around a portion of the first edge and a fourth sub-part disposed around a portion of the second edge, wherein the length of the third sub-part is less than the length of the fourth sub-part in orthographic projection along the thickness direction of the substrate.

10. The display panel according to claim 9, wherein, The third and fourth parts are arranged symmetrically.

11. The display panel according to claim 10, wherein, The third part includes a strip structure disposed around a portion of the second type of sub-pixel in the circumferential direction, or the third part includes a plurality of second type light-gathering parts arranged along a portion of the second type of sub-pixel in the circumferential direction; The fourth part includes a strip structure disposed around a portion of the second type of sub-pixel in the circumferential direction, or the fourth part includes a plurality of second type light-gathering parts arranged along a portion of the second type of sub-pixel in the circumferential direction.

12. The display panel according to any one of claims 1-11, wherein, The plurality of sub-pixels include different first color sub-pixels, second color sub-pixels, and third color sub-pixels. The first type of sub-pixels includes the first color sub-pixels, and the second type of sub-pixels includes the second color sub-pixels and the third color sub-pixels.

13. The display panel according to any one of claims 1-12, characterized in that, It also includes a functional layer located on the side of the sub-pixel opposite to the substrate, the light-concentrating structure being formed on the side of the functional layer opposite to the substrate, the functional layer including an encapsulation layer.

14. The display panel according to any one of claims 1-13, wherein, The light-concentrating structure has its surface facing away from the substrate protruding to the side furthest from the substrate.

15. The display panel according to claim 14, wherein, The cross-sectional shape of the light-concentrating structure along the thickness direction of the substrate is semi-circular, trapezoidal, or triangular.

16. A display device comprising a display panel as described in any one of claims 1-15.

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