Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate which is provided with a first bending area; the plurality of first pixel units are arranged on one side of the substrate and are arranged in the first bending area at intervals; the at least one first stress release structure is arranged on the side, close to the first pixel unit, of the substrate and located in the first bending area; wherein the orthographic projection of the first stress release structure on the substrate is not overlapped with the orthographic projection of the first pixel unit on the substrate.

Description

Technical Field

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

[0002] At present, the integration degree of automobile central control screens is getting higher and higher, and integrated large screens are about to become a development trend. Among them, flexible OLED screens have the advantages of being thin, light, bendable, having a high color gamut, a wide viewing angle, and low power consumption compared to LCD screens, and are more suitable for the in-vehicle environment with many curved surfaces. At present, how to improve the reliability of in-vehicle flexible display devices has become a research focus in this field. Summary of the invention

[0003] Based on this, it is necessary to provide a display panel and a display device that can improve reliability.

[0004] In a first aspect, an embodiment of the present application provides a display panel, including:

[0005] a substrate having a first bending region;

[0006] A plurality of first pixel units are disposed on one side of the substrate and are arranged at intervals in the first bending area;

[0007] At least one first stress release structure is provided on a side of the substrate close to the first pixel unit and located in the first bending area;

[0008] The orthographic projection of the first stress release structure on the substrate does not overlap with the orthographic projection of the first pixel unit on the substrate.

[0009] In one embodiment, the orthographic projection of the first stress release structure on the substrate is located between the orthographic projections of two adjacent first pixel units on the substrate;

[0010] Optionally, the first bending area includes a plurality of first sub-areas; the display panel includes a plurality of first stress release structures, the first stress release structures correspond to the first pixel units one by one, and each of the first sub-areas is provided with one first pixel unit and the first stress release structure corresponding to the first pixel unit;

[0011] Optionally, the plurality of first pixel units are arranged in rows along a first direction, and arranged in columns along a second direction intersecting the first direction, and both the first direction and the second direction are perpendicular to a thickness direction of the substrate;

[0012] The orthographic projection of the first stress release structure on the substrate is located between the orthographic projections of two adjacent first pixel units along the first direction on the substrate.

[0013] In one embodiment, the substrate further has a first straight area, the first straight area and the first curved area are arranged along the first direction, and the first straight area is connected to the first curved area;

[0014] The display panel further includes a plurality of second pixel units, which are disposed on a side of the substrate close to the first pixel unit and are arranged at intervals in the first straight area;

[0015] Optionally, the first straight area includes a plurality of second sub-areas, and the plurality of second pixel units are arranged in the plurality of second sub-areas in a one-to-one correspondence;

[0016] Optionally, all the second pixel units are arranged in rows along the first direction and in columns along the second direction;

[0017] Optionally, the first pixel unit and the second pixel unit each include a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel are respectively used to emit light of different colors;

[0018] The area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the second pixel unit is equal to the area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the first pixel unit.

[0019] In one embodiment, the first pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same first pixel unit, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction, and the third sub-pixel is located on one side of the first sub-pixel and the second sub-pixel along the first direction;

[0020] Optionally, in all first pixel units, all first sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0021] Along the first direction, the distance between any two adjacent first sub-pixels is equal to a first value; along the second direction, the distance between any two adjacent first sub-pixels is equal to a second value;

[0022] Optionally, in all first pixel units, all second sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0023] Along the first direction, the distance between any two adjacent second sub-pixels is equal to a third value; along the second direction, the distance between any two adjacent second sub-pixels is equal to a fourth value;

[0024] Optionally, in all the first pixel units, all the third sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0025] Along the first direction, the distance between any two adjacent third sub-pixels is equal to a fifth value; along the second direction, the distance between any two adjacent third sub-pixels is equal to a sixth value.

[0026] In one embodiment, all of the first pixel units are arranged in rows along the first direction and in columns along the second direction; in the same row of the first pixel units, the distance between the first pixel units in the first column and the first pixel units in the last column, facing away from each other, is between 0.3 cm and 1 cm.

[0027] In one embodiment, the substrate further has a second curved area, which is disposed on a side of the first straight area away from the first curved area and connected to the first straight area;

[0028] The display panel further includes:

[0029] A plurality of third pixel units are disposed on a side of the substrate close to the first pixel unit and are arranged at intervals in the second bending area;

[0030] at least one second stress release structure, disposed on a side of the substrate close to the first pixel unit and located in the second bending area;

[0031] Wherein, the orthographic projection of the second stress release structure on the substrate does not overlap with the orthographic projection of the third pixel unit on the substrate.

[0032] Optionally, a bending center of the first bending area and a bending center of the second bending area are respectively located on two opposite sides of the substrate.

[0033] In one embodiment, the bending center of the first bending area is located on a side of the substrate close to the first pixel unit, and the first stress release structure is configured as a groove; the bending center of the second bending area is located on a side of the substrate away from the third pixel unit, and the second stress release structure is configured as a protrusion;

[0034] Alternatively, the bending center of the first bending area is located on a side of the substrate away from the first pixel unit, and the first stress release structure is configured as a convexity; the bending center of the second bending area is located on a side of the substrate close to the third pixel unit, and the second stress release structure is configured as a concave groove;

[0035] Optionally, the display panel further comprises a pixel defining layer disposed on one side of the substrate, the pixel defining layer is provided with a plurality of pixel openings, and the sub-pixels in the first pixel unit, the second pixel unit and the third pixel unit are disposed at the pixel openings;

[0036] At least one of the first stress release structure and the second stress release structure is disposed on the pixel definition layer;

[0037] Optionally, the display panel further comprises an array film layer disposed on one side of the substrate, and the first pixel unit, the second pixel unit and the third pixel unit are all disposed on a side of the array film layer away from the substrate;

[0038] At least one of the first stress release structure and the second stress release structure is disposed on the array film layer.

[0039] In one embodiment, the orthographic projection of the second stress release structure on the substrate is located between the orthographic projections of two adjacent third pixel units on the substrate;

[0040] Optionally, the second bending area includes a plurality of third sub-areas, the display panel includes a plurality of second stress release structures, the second stress release structures correspond to the third pixel units one by one, and each of the third sub-areas is provided with one third pixel unit and the second stress release structure corresponding to the third pixel unit;

[0041] Optionally, the plurality of third pixel units are arranged in rows along the first direction and in columns along the second direction;

[0042] The orthographic projection of the second stress release structure on the substrate is located between the orthographic projections of two adjacent third pixel units along the first direction on the substrate;

[0043] Optionally, the third pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and an area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the third pixel unit is equal to an area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the first pixel unit;

[0044] Optionally, the third pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same third pixel unit, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction, and the third sub-pixel is located on one side of the first sub-pixel and the second sub-pixel along the first direction;

[0045] Optionally, in all third pixel units, all the first sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0046] Along the first direction, the distance between any two adjacent first sub-pixels is equal to a first value; along the second direction, the distance between any two adjacent first sub-pixels is equal to a second value;

[0047] Optionally, in all third pixel units, all the second sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0048] Along the first direction, the distance between any two adjacent second sub-pixels is equal to a third value; along the second direction, the distance between any two adjacent second sub-pixels is equal to a fourth value;

[0049] Optionally, in all third pixel units, all the third sub-pixels are arranged in rows along the first direction and in columns along the second direction;

[0050] Along the first direction, the distance between any two adjacent third sub-pixels is equal to a fifth value; along the second direction, the distance between any two adjacent third sub-pixels is equal to a sixth value;

[0051] Optionally, all the third pixel units are arranged in rows along the first direction and in columns along the second direction; in the same row of the third pixel units, the distance between the sides of the third pixel units in the first column and the third pixel units in the last column facing away from each other is between 0.3 cm and 1 cm.

[0052] In one embodiment, in the first pixel units in the same row of the first bending area, the distance between the first pixel units in the first column and the first pixel units in the last column, which are away from each other, is a first distance;

[0053] In the same row of the second pixel units in the first straight area, the distance between the second pixel units in the first column and the second pixel units in the last column, which are away from each other, is a second distance;

[0054] In the third pixel units in the same row of the second bending area, the distance between the third pixel units in the first column and the third pixel units in the last column, which are away from each other, is a third distance;

[0055] The ratio of the first distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.015; and / or the ratio of the third distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.015.

[0056] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel of the first aspect.

[0057] The display panel and display device provided by the embodiment of the present application are provided with a first stress release structure in the first bending area, and the orthographic projection of the first stress release structure on the substrate does not overlap with the orthographic projection of the first pixel unit on the substrate. In this way, on the one hand, when the first bending area of ​​the display panel is subjected to vibration or impact, it helps to release stress, improves the shock resistance and impact resistance of the display panel, reduces the probability of display abnormality of the display panel when subjected to vibration or impact, and improves the reliability of the display panel and the display device; on the other hand, the first stress release structure can be reasonably arranged in the first bending area, which can avoid the first stress release structure affecting the light emission of the first pixel unit, which is conducive to ensuring the display effect of the first bending area. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0059] Figure 1 A schematic diagram of the structure of a display panel provided in an embodiment of the present application.

[0060] Figure 2 for Figure 1 A partial plan view of the display panel is shown.

[0061] Figure 3 for Figure 1 A schematic diagram of the partial cross-sectional structure of the first curved area of ​​the display panel is shown.

[0062] Figure 4 for Figure 1 A schematic diagram of the partial cross-sectional structure of the second curved area of ​​the display panel is shown.

[0063] Figure 5Afor Figure 2 Schematic diagram of the local plan view of the first bending area.

[0064] Figure 5B for Figure 2 Schematic diagram of the local plan view of the first straight area in the figure.

[0065] Figure 5C for Figure 2 Schematic diagram of the local plan view of the second bending zone in FIG.

[0066] Fig. 6A for Figure 1 A schematic plan view of a first stress release structure of a display panel is shown.

[0067] Figure 6B for Figure 1 Another schematic plan view of the first stress release structure of the display panel is shown.

[0068] Figure 6C for Figure 1 Another schematic plan view of the first stress release structure of the display panel is shown.

[0069] Description of reference numerals:

[0070] 10. Display panel; 11. Substrate; 11a. First curved area; 11a1. First sub-area; 11b. First straight area; 11b1. Second sub-area; 11c. Second curved area; 11c1. Third sub-area; 11d. Second straight area; 11e. Third straight area; 12a. First pixel unit; 12b. Second pixel unit; 12c. Third pixel unit; 121. First sub-pixel; 122. Second sub-pixel; 123. Third sub-pixel; 131. First stress release structure; 132. Second stress release structure; 14. Pixel defining layer. DETAILED DESCRIPTION

[0071] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0072] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, they do not represent any order, quantity or importance, but are only used to distinguish different components. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present application, the first element may be referred to as the second element, and similarly, the second element may be referred to as the first element. "Including" or "comprising" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0073] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0074] In the field of in-vehicle displays, car displays need to be used for a long time in high temperature and high vibration scenarios, resulting in a harsh working environment for car displays. Furthermore, since the anti-vibration and anti-impact performance of the flexible OLED car display at the bending position with the smallest curvature radius is worse than that at other positions, the flexible OLED car display is prone to display abnormalities. At present, how to improve the reliability of in-vehicle flexible display devices has become a research focus in this field.

[0075] The embodiment of the present application provides a display panel and a display device, by setting a first stress release structure in the first bending area, and making the orthographic projection of the first stress release structure on the substrate not overlap with the orthographic projection of the first pixel unit on the substrate. In this way, on the one hand, when the first bending area of ​​the display panel is subjected to vibration or impact, it helps to release stress, improves the shock resistance and impact resistance of the display panel, reduces the probability of display abnormality of the display panel when subjected to vibration or impact, and improves the reliability of the display panel and the display device; on the other hand, the first stress release structure can be reasonably arranged in the first bending area, which can avoid the first stress release structure affecting the light emission of the first pixel unit, which is conducive to ensuring the display effect of the first bending area.

[0076] First, refer to Figure 1 and Figure 2As shown, an embodiment of the present application provides a display panel 10, which can be an organic light-emitting semiconductor (Organic Light-Emitting Diode, OLED) display panel 10, a liquid crystal display (Liquid Crystal Display, LCD), a sub-millimeter light-emitting diode (Mini Light-Emitting Diode, MiniLED) display panel 10, a micron light-emitting diode (Micro Light-Emitting Diode, Micro LED) display panel 10 or a quantum dot electroluminescent (Quantum Dot Light Emitting Diodes, QLED) display panel 10.

[0077] Specifically, the display panel 10 includes a substrate 11, a plurality of first pixel units 12a and at least one first stress release structure 131. The substrate 11 has a first curved area 11a. The plurality of first pixel units 12a are disposed on one side of the substrate 11 and are arranged at intervals in the first curved area 11a. The first stress release structure 131 is disposed on one side of the substrate 11 close to the first pixel unit 12a and is located in the first curved area 11a.

[0078] The orthographic projection of the first stress release structure 131 on the substrate 11 does not overlap with the orthographic projection of the first pixel unit 12a on the substrate 11. That is, the first stress release structure 131 and the first pixel unit 12a are staggered.

[0079] Here, it should be noted that the substrate 11 and other film layers on the substrate 11 located in the first curved area 11a are in a curved state. The first curved area 11a may be a curved position where the curvature radius of the substrate 11 (display panel 10) is the smallest. The first pixel unit 12a refers to: the smallest repeating unit of pixel arrangement in the first curved area 11a.

[0080] By setting the first stress release structure 131 in the first bending area 11a, when the first bending area 11a of the display panel 10 is subjected to vibration or impact, the first stress release structure 131 helps to release stress in the area, thereby improving the anti-vibration and anti-impact performance of the display panel 10, reducing the probability of abnormal display of the display panel 10 in the area when subjected to vibration or impact, and improving the reliability of the display panel 10 and the display device. By making the orthographic projection of the first stress release structure 131 on the substrate 11 not overlap with the orthographic projection of the first pixel unit 12a on the substrate 11. In this way, the first stress release structure 131 can be reasonably arranged in the first bending area 11a, which can prevent the first stress release structure 131 from affecting the light emission of the first pixel unit 12a, and is conducive to ensuring the display effect of the first bending area 11a.

[0081] In one embodiment, the orthographic projection of the first stress release structure 131 on the substrate 11 is located between the orthographic projections of two adjacent first pixel units 12a on the substrate 11. In this way, the first stress release structure 131 is reasonably arranged in the first curved area 11a, so that the first stress release structure 131 can be prevented from affecting the light emission of the first pixel unit 12a, which is conducive to ensuring the display effect of the first curved area 11a.

[0082] In one embodiment, a first stress release structure 131 is provided between any two adjacent first pixel units 12a. This is conducive to providing a large number of first stress release structures 131 in the first bending area 11a, thereby further improving the anti-seismic performance and anti-impact performance of the first bending area 11a.

[0083] In one embodiment, referring to Figure 5A As shown, the first bending area 11a includes a plurality of first sub-areas 11a1. The display panel 10 includes a plurality of first stress release structures 131, each of which corresponds to the first pixel unit 12a. A first pixel unit 12a and a first stress release structure 131 corresponding to the first pixel unit 12a are provided in each first sub-area 11a1.

[0084] Here, the first sub-area 11a1 can be understood as a unit area, or as a pitch. The above configuration is equivalent to arranging a first pixel unit 12a and a first stress release structure 131 in a pitch. In this way, on the one hand, it is conducive to uniform distribution of the first pixel unit 12a, ensuring consistent display effects at all positions; on the other hand, when the display panel 10 is vibrated or impacted, the stress at the curved position with a smaller curvature radius (such as the first curved area 11a) can be released, preventing the film from breaking, thereby avoiding abnormal display of the picture.

[0085] In one embodiment, a plurality of first pixel units 12a are arranged in rows along a first direction X, and in columns along a second direction Y intersecting the first direction X, and both the first direction X and the second direction Y are perpendicular to the thickness direction of the substrate 11. The orthographic projection of the first stress release structure 131 on the substrate 11 is located between the orthographic projections of two adjacent first pixel units 12a along the first direction X on the substrate 11.

[0086] In this way, on the one hand, it is beneficial to set a larger number of first stress release structures 131 in the first bending zone 11a, thereby further improving the seismic resistance and impact resistance of the first bending zone 11a; on the other hand, the first stress release structures 131 can be arranged more evenly in the first bending zone 11a, so that the stress release performance of the first bending zone 11a is more uniform.

[0087] In one embodiment, the substrate 11 further comprises a first straight region 11b, the first straight region 11b and the first curved region 11a are arranged along the first direction X, and the first straight region 11b is connected to the first curved region 11a. The display panel 10 further comprises a plurality of second pixel units 12b, the plurality of second pixel units 12b are disposed on one side of the substrate 11 close to the first pixel unit 12a, and are arranged at intervals in the first straight region 11b.

[0088] Here, it should be noted that the substrate 11 located in the first straight region 11 b may be completely straight or approximately straight. The substrate 11 located in the first straight region 11 b may have a slight curvature.

[0089] In one embodiment, referring to Figure 5B As shown, the first straight region 11b includes a plurality of second sub-regions 11b1, and a plurality of second pixel units 12b are arranged in a one-to-one correspondence in the plurality of second sub-regions 11b1. The second pixel unit 12b refers to: the minimum repeating unit of pixel arrangement in the first straight region 11b.

[0090] Here, the second sub-region 11b1 can be understood as a unit area area, and can also be considered as a pitch. In one example, the first sub-region 11a1 and the second sub-region 11b1 are both a pitch, that is: the area of ​​the second sub-region 11b1 is equal to the area of ​​the first sub-region 11a1. Further, the second pixel unit 12b can be considered as a "conventional pixel unit" arranged in a pitch, and the first pixel unit 12a can be considered as a "first differentiated pixel unit" different from the "conventional pixel unit". Further, the area where the first pixel unit 12a is located (the first bending area 11a) is also equivalent to the first pixel difference area. The embodiment of the present application is equivalent to a differentiated design of the pixel unit in the first bending area 11a, that is, a first stress release structure 131 is added to the unit area of ​​the first bending area 11a, thereby improving the seismic resistance and impact resistance of the first bending area 11a.

[0091] In one embodiment, all the second pixel units 12b are arranged in rows along the first direction X and in columns along the second direction Y. It is understandable that the arrangement of the second pixel units 12b may be the same as that of the first pixel units 12a, so that the display difference between the first straight area 11b and the first curved area 11a can be reduced, which is conducive to improving the display effect.

[0092] In one embodiment, the first pixel unit 12a and the second pixel unit 12b both include a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123; the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 are respectively used to emit light of different colors. The area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the second pixel unit 12b is equal to the area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the first pixel unit 12a.

[0093] That is, the area ratio of the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 in the first pixel unit 12a is equal to n:m:z, and the area ratio of the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 in the second pixel unit 12b is also equal to n:m:z. In this way, the brightness difference between the first straight area 11b and the first curved area 11a can be reduced, which is conducive to improving the display effect.

[0094] It should be noted that, in order to arrange the first pixel unit 12a and the first stress release structure 131 in the second sub-region 11b1, the area of ​​the first sub-pixel 121 in the first pixel unit 12a can be made smaller than the area of ​​the first sub-pixel 121 in the second pixel unit 12b, the area of ​​the second sub-pixel 122 in the first pixel unit 12a can be made smaller than the area of ​​the second sub-pixel 122 in the second pixel unit 12b, and the area of ​​the third sub-pixel 123 in the first pixel unit 12a can be made smaller than the area of ​​the third sub-pixel 123 in the second pixel unit 12b. Thus, a space for setting the first stress release structure 131 can be reserved in the second sub-region 11b1.

[0095] It is understood that the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 can be one of a red sub-pixel, a blue sub-pixel, and a green sub-pixel, respectively. Of course, in some other embodiments, the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 can also be sub-pixels that emit light of other colors besides red, green, and blue, for example, white or yellow, which is not limited in the embodiments of the present application.

[0096] In one embodiment, the first pixel unit 12a includes a first sub-pixel 121, a second sub-pixel 122 and a third sub-pixel 123; in the same first pixel unit 12a, the first sub-pixel 121 and the second sub-pixel 122 are arranged at intervals along the second direction Y, and the third sub-pixel 123 is located on one side of the first sub-pixel 121 and the second sub-pixel 122 along the first direction X. In this way, the display effect in the first curved area 11a can be better. It can be understood that the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 in the first pixel unit 12a can also be arranged in other ways, and the embodiment of the present application is not limited to this.

[0097] In one embodiment, in all first pixel units 12a, all first sub-pixels 121 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent first sub-pixels 121 is equal to the first value, that is, in the first direction X, the distance between any two adjacent first sub-pixels 121 is equal. Along the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal to the second value, that is, in the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal.

[0098] In this way, the first sub-pixels 121 in the first curved area 11 a are arranged more evenly, and the display effects at various positions in the first curved area 11 a are kept consistent.

[0099] In one embodiment, in all first pixel units 12a, all second sub-pixels 122 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent second sub-pixels 122 is equal to the third value, that is, in the first direction X, the distance between any two adjacent second sub-pixels 122 is equal. Along the second direction Y, the distance between any two adjacent second sub-pixels 122 is equal to the fourth value, that is, in the second direction Y, the distance between any two adjacent second sub-pixels 122 is equal.

[0100] In this way, the second sub-pixels 122 in the first curved area 11 a are arranged more evenly, and the display effects at various positions in the first curved area 11 a are kept consistent.

[0101] Optionally, the first value is equal to the third value, and the second value is equal to the fourth value. In this way, it is beneficial to arrange the third sub-pixels 123.

[0102] In one embodiment, in all first pixel units 12a, all third sub-pixels 123 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent third sub-pixels 123 is equal to the fifth value, that is, in the first direction X, the distance between any two adjacent third sub-pixels 123 is equal. Along the second direction Y, the distance between any two adjacent third sub-pixels 123 is equal to the sixth value, that is, in the second direction Y, the distance between any two adjacent third sub-pixels 123 is equal.

[0103] In this way, the third sub-pixels 123 in the first curved area 11 a are arranged more evenly, and the display effects at various positions in the first curved area 11 a are kept consistent.

[0104] It should be noted that the embodiments of the present application do not limit the specific values ​​of the first value, the second value, the third value, the fourth value, the fifth value and the sixth value.

[0105] In one embodiment, all the first pixel units 12a are arranged in rows along the first direction X and in columns along the second direction Y; in the same row of first pixel units 12a, the distance between the first pixel units 12a in the first column and the first pixel units 12a in the last column, which are opposite to each other, is between 0.3cm and 1cm. For example, the distance can be 0.3cm, 0.5cm, 0.7cm, 1cm, or between any two of the above values. Figure 1 As shown, since the first pixel unit 12a is disposed in the first bending area 11a, it can also be understood that the dimension W1 of the first bending area 11a along the first direction is between 0.3 cm and 1 cm.

[0106] The above arrangement, on the one hand, ensures that the width of the area where the first pixel unit 12a is located is not too small, thereby ensuring that the area has a certain stress release function; on the other hand, ensures that the width of the area where the first pixel unit 12a is located is not too large, thereby ensuring that the human eye cannot recognize the brightness difference of the first curved area 11a, thereby reducing the impact on the display effect.

[0107] In one embodiment, the substrate 11 further has a second curved area 11c, and the second curved area 11c is arranged on a side of the first straight area 11b away from the first curved area 11a, and is connected to the first straight area 11b. The display panel 10 also includes a plurality of third pixel units 12c and at least one second stress release structure 132. The plurality of third pixel units 12c are arranged on a side of the substrate 11 close to the first pixel unit 12a, and are arranged at intervals in the second curved area 11c. The second stress release structure 132 is arranged on a side of the substrate 11 close to the first pixel unit 12a, and is located in the second curved area 11c. That is, the third pixel unit 12c, the first pixel unit 12a, the first stress release structure 131, and the second stress release structure 132 are all located in the same layer of the substrate 11.

[0108] The orthographic projection of the second stress release structure 132 on the substrate 11 does not overlap with the orthographic projection of the third pixel unit 12c on the substrate 11. That is, the second stress release structure 132 and the third pixel unit 12c are staggered.

[0109] Here, it should be noted that the substrate 11 and other film layers on the substrate 11 located in the second curved area 11c are in a curved state. The second curved area 11c may be the curved position where the curvature radius of the substrate 11 (display panel 10) is the smallest. The third pixel unit 12c refers to: the minimum repeating unit of pixel arrangement in the second curved area 11c.

[0110] In this way, when the second curved area 11c of the display panel 10 is subjected to vibration or impact, the second stress release structure 132 helps to release stress in the area, thereby improving the anti-vibration and anti-impact performance of the display panel 10, reducing the probability of abnormal display of the display panel 10 in the area when subjected to vibration or impact, and improving the reliability of the display panel 10 and the display device. By making the orthographic projection of the second stress release structure 132 on the substrate 11 not overlap with the orthographic projection of the third pixel unit 12c on the substrate 11. In this way, the second stress release structure 132 can be reasonably arranged in the second curved area 11c, which can prevent the second stress release structure 132 from affecting the light emission of the third pixel unit 12c, and is conducive to ensuring the display effect of the second curved area 11c.

[0111] In one embodiment, the bending center of the first bending area 11a and the bending center of the second bending area 11c are respectively located on opposite sides of the substrate 11. In this way, the display panel 10 can adapt to the multi-curved environment inside the car cockpit.

[0112] In one embodiment, in combination Figure 2 , Figure 3 and Figure 4As shown, the bending center of the first bending area 11a is located on the side of the substrate 11 close to the first pixel unit 12a, and the first stress release structure 131 is constructed as a groove, that is, the display panel 10 is bent toward the light-emitting side, that is, the substrate 11 is bent inward. The bending center of the second bending area 11c is located on the side of the substrate 11 away from the third pixel unit 12c, and the second stress release structure 132 is constructed as a convexity. That is, the display panel 10 is bent toward the backlight side, that is, the substrate 11 is bent outward.

[0113] It should be noted that when the substrate 11 bends inward, the film layer of the first bending area 11a will be squeezed, and the groove can release the bending stress. When the first bending area 11a is vibrated or impacted, the groove can also release the stress of external impact, thereby improving the anti-seismic performance and anti-impact performance of the first bending area 11a. When the substrate 11 bends outward, the film layer of the second bending area 11c mainly bears tensile stress, and the protrusion can better balance the tensile stress. When the second bending area 11c is vibrated or impacted, the protrusion can better balance the tensile stress caused by external impact, thereby improving the anti-seismic performance and anti-impact performance of the second bending area 11c.

[0114] Alternatively, the bending center of the first bending area 11a is located on the side of the substrate 11 away from the first pixel unit 12a, and the first stress release structure 131 is constructed as a convexity, that is, the display panel 10 is bent toward the backlight side, that is, the substrate 11 is bent outward. The bending center of the second bending area 11c is located on the side of the substrate 11 close to the third pixel unit 12c, and the second stress release structure 132 is constructed as a groove. That is, the display panel 10 is bent toward the light-emitting side, that is, the substrate 11 is bent inward. The principle of stress release by the convexity and the groove is the same as above and will not be repeated here.

[0115] It can be understood that the bending center of the first bending area 11a and the bending center of the second bending area 11c can also be located on the same side of the substrate 11. That is, the bending center of the first bending area 11a and the bending center of the second bending area 11c are both located on the side of the substrate 11 away from the first pixel unit 12a, and the first stress release structure 131 and the second stress release structure 132 are both constructed as protrusions. Alternatively, the bending center of the first bending area 11a and the bending center of the second bending area 11c are both located on the side of the substrate 11 close to the third pixel unit 12c, and the first stress release structure 131 and the second stress release structure 132 are both constructed as grooves.

[0116] In one embodiment, referring to Figure 3 and Figure 4As shown, the display panel 10 further includes a pixel defining layer 14 disposed on one side of the substrate 11, and a plurality of pixel openings are disposed on the pixel defining layer 14, and sub-pixels in the first pixel unit 12a, the second pixel unit 12b, and the third pixel unit 12c are disposed at the pixel openings. At least one of the first stress release structure 131 and the second stress release structure 132 is disposed on the pixel defining layer 14.

[0117] In this way, the existing film layer in the display panel 10 can be used to reduce the difficulty and cost of manufacturing the display panel 10. Taking the first stress release structure 131 as an example, if the first stress release structure 131 is a groove, the groove is set on the pixel defining layer 14, and if the first stress release structure 131 is a protrusion, the protrusion is set on the surface of the pixel defining layer 14. It can be understood that the stress release structure located on the pixel defining layer 14 can be manufactured simultaneously with the pixel defining layer 14 in the same process.

[0118] It is understandable that when the protrusions are disposed on the pixel defining layer 14 , the protrusions may also be manufactured simultaneously with the support pillars on the pixel defining layer 14 .

[0119] In one embodiment, the display panel 10 further includes an array film layer (not shown) disposed on one side of the substrate 11, and the first pixel unit 12a, the second pixel unit 12b, and the third pixel unit 12c are all disposed on a side of the array film layer away from the substrate 11. At least one of the first stress release structure 131 and the second stress release structure 132 is disposed on the array film layer. In this way, the existing film layer in the display panel 10 can be utilized to reduce the difficulty and cost of manufacturing the display panel 10.

[0120] In one example, the array film layer includes a planarization layer, and at least one of the first stress release structure 131 and the second stress release structure 132 is disposed on the planarization layer.

[0121] In one example, the array film layer includes an insulating layer, and at least one of the first stress release structure 131 and the second stress release structure 132 is disposed on the insulating layer.

[0122] In one example, the array film layer includes a metal layer, and at least one of the first stress release structure 131 and the second stress release structure 132 is disposed on the metal layer.

[0123] It is understandable that the first stress release structure 131 and the second stress release structure 132 may also be disposed on other film layers of the display panel 10 .

[0124] In one embodiment, the orthographic projection of the second stress release structure 132 on the substrate 11 is located between the orthographic projections of two adjacent third pixel units 12c on the substrate 11. In this way, the second stress release structure 132 is reasonably arranged in the second curved area 11c, which can prevent the second stress release structure 132 from affecting the light emission of the third pixel unit 12c, and is conducive to ensuring the display effect of the second curved area 11c.

[0125] In one embodiment, a second stress release structure 132 is provided between any two adjacent third pixel units 12c. This is conducive to providing a larger number of second stress release structures 132 in the second bending area 11c, thereby further improving the anti-seismic and anti-impact performance of the second bending area 11c.

[0126] In one embodiment, referring to Figure 5C As shown, the second bending area 11c includes multiple third sub-areas 11c1, and the display panel 10 includes multiple second stress release structures 132. The second stress release structures 132 correspond one-to-one to the third pixel units 12c. Each third sub-area 11c1 is provided with a third pixel unit 12c and a second stress release structure 132 corresponding to the third pixel unit 12c.

[0127] Here, the third sub-area 11c1 can be understood as a unit area, and can also be considered as a pitch. Further, the third pixel unit 12c can be considered as a "second differentiated pixel unit" different from the "conventional pixel unit". Further, the area where the third pixel unit 12c is located (the second curved area 11c) is also equivalent to the second pixel difference area.

[0128] The above configuration is equivalent to arranging a third pixel unit 12c and a second stress release structure 132 in a pitch. In this way, on the one hand, it is conducive to evenly distributing the third pixel unit 12c, ensuring consistent display effects at all positions; on the other hand, it is equivalent to differentially designing the pixel units in the second curved area 11c, that is, adding a second stress release structure 132 per unit area of ​​the second curved area 11c. When the display panel 10 is vibrated or impacted, the stress at the curved position with a smaller curvature radius (such as the second curved area 11c) can be released, preventing the film layer from breaking, thereby avoiding abnormal display of the picture.

[0129] In one embodiment, a plurality of third pixel units 12 c are arranged in rows along the first direction X and in columns along the second direction Y. The orthographic projection of the second stress release structure 132 on the substrate 11 is located between the orthographic projections of two adjacent third pixel units 12 c along the first direction X on the substrate 11 .

[0130] In this way, on the one hand, it is beneficial to set a larger number of second stress release structures 132 in the second bending zone 11c, thereby further improving the seismic resistance and impact resistance of the second bending zone 11c; on the other hand, the second stress release structures 132 can be arranged more evenly in the second bending zone 11c, so that the stress release performance of the second bending zone 11c is more uniform.

[0131] In one embodiment, the third pixel unit 12c includes a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123, and the area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the third pixel unit 12c is equal to the area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the first pixel unit 12a. That is, the area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the third pixel unit 12c is equal to n:m:z, and the area ratio of the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 in the second pixel unit 12b is also equal to n:m:z.

[0132] In this way, the brightness difference between the first straight area 11 b and the first curved area 11 a can be reduced, which is beneficial to improving the display effect.

[0133] It should be noted that, in order to arrange the third pixel unit 12c and the second stress release structure 132 in the third sub-region 11c1, the area of ​​the first sub-pixel 121 in the third pixel unit 12c can be made smaller than the area of ​​the first sub-pixel 121 in the second pixel unit 12b, the area of ​​the second sub-pixel 122 in the third pixel unit 12c can be made smaller than the area of ​​the second sub-pixel 122 in the second pixel unit 12b, and the area of ​​the third sub-pixel 123 in the third pixel unit 12c can be made smaller than the area of ​​the third sub-pixel 123 in the second pixel unit 12b. Thus, a space for setting the first stress release structure 131 can be reserved in the second sub-region 11b1.

[0134] In one embodiment, the third pixel unit 12c includes a first sub-pixel 121, a second sub-pixel 122 and a third sub-pixel 123; in the same third pixel unit 12c, the first sub-pixel 121 and the second sub-pixel 122 are arranged at intervals along the second direction Y, and the third sub-pixel 123 is located on one side of the first sub-pixel 121 and the second sub-pixel 122 along the first direction X. In this way, the display effect in the second curved area 11c can be better. It can be understood that the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 in the first pixel unit 12a can also be arranged in other ways, and the embodiment of the present application is not limited to this.

[0135] In one embodiment, in all third pixel units 12c, all first sub-pixels 121 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent first sub-pixels 121 is equal to the first value, that is, in the first direction X, the distance between any two adjacent first sub-pixels 121 is equal. Along the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal to the second value, that is, in the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal.

[0136] In this way, the first sub-pixels 121 in the second curved area 11 c are arranged more evenly, and the display effects at various positions in the first curved area 11 a are kept consistent.

[0137] In one embodiment, in all third pixel units 12c, all second sub-pixels 122 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent second sub-pixels 122 is equal to the third value, that is, in the first direction X, the distance between any two adjacent second sub-pixels 122 is equal. Along the second direction Y, the distance between any two adjacent second sub-pixels 122 is equal to the fourth value, that is, in the second direction Y, the distance between any two adjacent second sub-pixels 122 is equal.

[0138] In this way, the second sub-pixels 122 in the second curved area 11 c are arranged more evenly, and the display effects at various positions in the first curved area 11 a are kept consistent.

[0139] In one embodiment, in all third pixel units 12c, all third sub-pixels 123 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent third sub-pixels 123 is equal to the fifth value, that is, in the first direction X, the distance between any two adjacent third sub-pixels 123 is equal. Along the second direction Y, the distance between any two adjacent third sub-pixels 123 is equal to the sixth value, that is, in the second direction Y, the distance between any two adjacent third sub-pixels 123 is equal.

[0140] It should be noted that the first numerical value here is equal to the first numerical value in the previous text, the second numerical value here is equal to the second numerical value in the previous text, the third numerical value here is equal to the third numerical value in the previous text, the fourth numerical value here is equal to the fourth numerical value in the previous text, the fifth numerical value here is equal to the fifth numerical value in the previous text, and the sixth numerical value here is equal to the sixth numerical value in the previous text.

[0141] In one embodiment, the second pixel unit 12b includes a first sub-pixel 121, a second sub-pixel 122 and a third sub-pixel 123; in the same second pixel unit 12b, the first sub-pixel 121 and the second sub-pixel 122 are arranged at intervals along the second direction Y, and the third sub-pixel 123 is located on one side of the first sub-pixel 121 and the second sub-pixel 122 along the first direction X.

[0142] In the second pixel unit 12b, all the first sub-pixels 121 are arranged in rows along the first direction X and in columns along the second direction Y. All the second sub-pixels 122 are arranged in rows along the first direction X and in columns along the second direction Y. All the third sub-pixels 123 are arranged in rows along the first direction X and in columns along the second direction Y. Along the first direction X, the distance between any two adjacent first sub-pixels 121 is equal to the first value, that is, in the first direction X, the distance between any two adjacent first sub-pixels 121 is equal. Along the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal to the second value, that is, in the second direction Y, the distance between any two adjacent first sub-pixels 121 is equal. Along the first direction X, the distance between any two adjacent second sub-pixels 122 is equal to the third value, that is, in the first direction X, the distance between any two adjacent second sub-pixels 122 is equal. Along the second direction Y, the distance between any two adjacent second sub-pixels 122 is equal to the fourth value, that is, the distance between any two adjacent second sub-pixels 122 is equal in the second direction Y. Along the first direction X, the distance between any two adjacent third sub-pixels 123 is equal to the fifth value, that is, the distance between any two adjacent third sub-pixels 123 is equal in the first direction X. Along the second direction Y, the distance between any two adjacent third sub-pixels 123 is equal to the sixth value, that is, the distance between any two adjacent third sub-pixels 123 is equal in the second direction Y.

[0143] This is beneficial to improving the display uniformity of the display panel 10 and improving the display effect.

[0144] In one embodiment, all the third pixel units 12c are arranged in rows along the first direction X and in columns along the second direction Y; in the same row of third pixel units 12c, the distance between the sides of the third pixel units 12c in the first column and the third pixel units 12c in the last column that are away from each other is between 0.3cm and 1cm. Exemplarily, the distance can be 0.3cm, 0.5cm, 0.7cm, 1cm, or between any two of the above values. Since the third pixel units 12c are arranged in the second bending area 11c, it can also be understood that the size of the second bending area 11c along the first direction X is between 0.3cm and 1cm.

[0145] The above arrangement, on the one hand, ensures that the width of the area where the third pixel unit 12c is located is not too small, thereby ensuring that the area has a certain stress release function; on the other hand, ensures that the width of the area where the third pixel unit 12c is located is not too large, thereby ensuring that the human eye cannot recognize the brightness difference of the second curved area 11c, thereby reducing the impact on the display effect.

[0146] In one embodiment, in the first pixel unit 12a of the same row in the first curved area 11a, the distance between the first pixel unit 12a of the first column and the first pixel unit 12a of the last column, which are opposite to each other, is a first distance. In the second pixel unit 12b of the same row in the first straight area 11b, the distance between the second pixel unit 12b of the first column and the second pixel unit 12b of the last column, which are opposite to each other, is a second distance. In the third pixel unit 12c of the same row in the second curved area 11c, the distance between the third pixel unit 12c of the first column and the third pixel unit 12c of the last column, which are opposite to each other, is a third distance.

[0147] The ratio of the first distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.015. For example, the ratio can be 0.005, 0.01, 0.012, 0.015 or between any two of the above values.

[0148] Since the first pixel unit 12a is disposed in the first curved area 11a, the first distance can be understood as the size of the first curved area 11a along the first direction X, that is, the first distance is the width of the first curved area 11a. Since the second pixel unit 12b is disposed in the first straight area 11b, the second distance can be understood as the size of the first straight area 11b along the first direction X, that is, the second distance is the width of the first straight area 11b. Since the third pixel unit 12c is disposed in the second curved area 11c, the third distance can be understood as the size of the second curved area 11c along the first direction X, that is, the third distance is the width of the second curved area 11c.

[0149] The above configuration is equivalent to that the width of the first curved area 11a (that is, the first pixel difference area) is relatively small in the sum of the widths of the first curved area 11a, the first straight area 11b, and the second curved area 11c, that is, the width of the first pixel difference area is relatively small, which can minimize the loss of aperture ratio.

[0150] In one embodiment, the display panel 10 has a display area, the size of the display area along the first direction X is the width of the display area, and the ratio of the width of the first curved area 11a (i.e., the first pixel difference area) to the width of the display area is between 0.005 and 0.015. In this way, the width of the first pixel difference area is made smaller, which can minimize the loss of aperture ratio.

[0151] In one embodiment, the ratio of the third distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.015. For example, the ratio can be 0.005, 0.01, 0.012, 0.015 or between any two of the above values.

[0152] The above arrangement is equivalent to that the width of the second curved area 11c (that is, the second pixel difference area) is smaller than the sum of the widths of the first curved area 11a, the first straight area 11b and the second curved area 11c, that is, the width of the second pixel difference area is smaller, which can minimize the loss of aperture ratio.

[0153] In one embodiment, the display panel 10 has a display area, the size of the display area along the first direction X is the width of the display area, and the ratio of the width of the second curved area 11c (i.e., the second pixel difference area) to the width of the display area is between 0.005 and 0.015. In this way, the width of the second pixel difference area is made smaller, which can minimize the loss of aperture ratio.

[0154] In one embodiment, referring to Fig. 6A , Figure 6B , Figure 6C As shown, the planar shape of the first stress release structure 131 and the second stress release structure 132 may be a strip. Further, the planar shape of the first stress release structure 131 and the second stress release structure 132 may be a regular strip structure or an irregular strip structure. In one example, Fig. 6A and Figure 6B As shown, when the first stress release structure 131 (or the second stress release structure 132) is a strip structure, the side of the first stress release structure 131 (or the second stress release structure 132) may be provided with a protrusion. The specific shapes of the first stress release structure 131 and the second stress release structure 132 may be selected according to actual conditions, and the embodiments of the present application do not specifically limit the shapes of the first stress release structure 131 and the second stress release structure 132.

[0155] It should be noted that the inventors have simulated the traditional display panel 10 and the display panel 10 provided in the embodiment of the present application, and the simulation results show that when subjected to vibration or impact, the stress at the bending position of the display panel 10 provided in the embodiment of the present application is 4% lower than the stress at the bending position of the traditional display panel 10. It can be seen that the display panel 10 provided in the embodiment of the present application can improve the anti-seismic performance and anti-impact performance of the display panel 10, thereby reducing the probability of display abnormality of the display panel 10 when subjected to vibration or impact.

[0156] In one embodiment, referring to Figure 1As shown, the substrate 11 also has a second straight area 11d and a third straight area 11e, the second straight area 11d is arranged on the side of the first curved area 11a away from the first straight area 11b, and the third straight area 11e is arranged on the side of the second curved area 11c away from the first straight area 11b. The first straight area 11b, the second straight area 11d and the third straight area 11e have the same pixel arrangement.

[0157] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel of the first aspect.

[0158] The display device can be a laptop computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a television monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, etc.

[0159] The display device provided by the embodiment of the present application is provided by arranging at least part of the pixel unit in the circuit area and the routing area of ​​the corresponding sub-area. In this way, since the circuit area is originally provided with a driving circuit group, and the routing area is originally provided with a sub-routing group, at least part of the pixel unit is arranged in the circuit area and the routing area. On the one hand, the position arrangement of the pixel unit will not affect the transmittance of the light-transmitting area, which is conducive to making the display panel have a higher transmittance; on the other hand, the space of the circuit area and the routing area is used to arrange the pixel unit, which is conducive to expanding the arrangement area of ​​the pixel unit, thereby facilitating the improvement of the aperture ratio, and further facilitating the improvement of the display effect and service life.

[0160] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0161] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0162] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: a substrate having a first bending region; A plurality of first pixel units are disposed on one side of the substrate and are arranged at intervals in the first bending area; At least one first stress release structure is provided on a side of the substrate close to the first pixel unit and located in the first bending area; The orthographic projection of the first stress release structure on the substrate does not overlap with the orthographic projection of the first pixel unit on the substrate.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the first stress release structure on the substrate is located between the orthographic projections of two adjacent first pixel units on the substrate; Optionally, the first bending area includes a plurality of first sub-areas; the display panel includes a plurality of first stress release structures, the first stress release structures correspond to the first pixel units one by one, and each of the first sub-areas is provided with one first pixel unit and the first stress release structure corresponding to the first pixel unit; Optionally, the plurality of first pixel units are arranged in rows along a first direction, and arranged in columns along a second direction intersecting the first direction, and both the first direction and the second direction are perpendicular to a thickness direction of the substrate; The orthographic projection of the first stress release structure on the substrate is located between the orthographic projections of two adjacent first pixel units along the first direction on the substrate.

3. The display panel according to claim 2, characterized in that: The substrate further has a first straight area, the first straight area and the first curved area are arranged along the first direction, and the first straight area is connected to the first curved area; The display panel further includes a plurality of second pixel units, which are disposed on a side of the substrate close to the first pixel unit and are arranged at intervals in the first straight area; Optionally, the first straight area includes a plurality of second sub-areas, and the plurality of second pixel units are arranged in the plurality of second sub-areas in a one-to-one correspondence; Optionally, all the second pixel units are arranged in rows along the first direction and in columns along the second direction; Optionally, the first pixel unit and the second pixel unit each include a first sub-pixel, a second sub-pixel and a third sub-pixel; the first sub-pixel, the second sub-pixel and the third sub-pixel are respectively used to emit light of different colors; The area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the second pixel unit is equal to the area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the first pixel unit.

4. The display panel according to claim 3, characterized in that: The first pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same first pixel unit, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction, and the third sub-pixel is located on one side of the first sub-pixel and the second sub-pixel along the first direction; Optionally, in all first pixel units, all first sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent first sub-pixels is equal to a first value; along the second direction, the distance between any two adjacent first sub-pixels is equal to a second value; Optionally, in all first pixel units, all second sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent second sub-pixels is equal to a third value; along the second direction, the distance between any two adjacent second sub-pixels is equal to a fourth value; Optionally, in all the first pixel units, all the third sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent third sub-pixels is equal to a fifth value; along the second direction, the distance between any two adjacent third sub-pixels is equal to a sixth value.

5. The display panel according to claim 3, characterized in that: All the first pixel units are arranged in rows along the first direction and in columns along the second direction; in the same row of the first pixel units, the distance between the first pixel units in the first column and the first pixel units in the last column facing away from each other is between 0.3 cm and 1 cm.

6. The display panel according to claim 3, characterized in that: The substrate further comprises a second curved area, which is arranged on a side of the first straight area away from the first curved area and connected to the first straight area; The display panel further includes: A plurality of third pixel units are disposed on a side of the substrate close to the first pixel unit and are arranged at intervals in the second bending area; at least one second stress release structure, disposed on a side of the substrate close to the first pixel unit and located in the second bending area; Wherein, the orthographic projection of the second stress release structure on the substrate does not overlap with the orthographic projection of the third pixel unit on the substrate; Optionally, a bending center of the first bending area and a bending center of the second bending area are respectively located on two opposite sides of the substrate.

7. The display panel according to claim 6, characterized in that: The bending center of the first bending area is located on a side of the substrate close to the first pixel unit, and the first stress release structure is configured as a groove; the bending center of the second bending area is located on a side of the substrate away from the third pixel unit, and the second stress release structure is configured as a protrusion; Alternatively, the bending center of the first bending area is located on a side of the substrate away from the first pixel unit, and the first stress release structure is configured as a convexity; the bending center of the second bending area is located on a side of the substrate close to the third pixel unit, and the second stress release structure is configured as a concave groove; Optionally, the display panel further comprises a pixel defining layer disposed on one side of the substrate, the pixel defining layer is provided with a plurality of pixel openings, and the sub-pixels in the first pixel unit, the second pixel unit and the third pixel unit are disposed at the pixel openings; At least one of the first stress release structure and the second stress release structure is disposed on the pixel definition layer; Optionally, the display panel further comprises an array film layer disposed on one side of the substrate, and the first pixel unit, the second pixel unit and the third pixel unit are all disposed on a side of the array film layer away from the substrate; At least one of the first stress release structure and the second stress release structure is disposed on the array film layer.

8. The display panel according to claim 6, characterized in that: The orthographic projection of the second stress release structure on the substrate is located between the orthographic projections of two adjacent third pixel units on the substrate; Optionally, the second bending area includes a plurality of third sub-areas, the display panel includes a plurality of second stress release structures, the second stress release structures correspond to the third pixel units one by one, and each of the third sub-areas is provided with one third pixel unit and the second stress release structure corresponding to the third pixel unit; Optionally, the plurality of third pixel units are arranged in rows along the first direction and in columns along the second direction; The orthographic projection of the second stress release structure on the substrate is located between the orthographic projections of two adjacent third pixel units along the first direction on the substrate; Optionally, the third pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and an area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the third pixel unit is equal to an area ratio of the first sub-pixel, the second sub-pixel and the third sub-pixel in the first pixel unit; Optionally, the third pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel; in the same third pixel unit, the first sub-pixel and the second sub-pixel are arranged at intervals along the second direction, and the third sub-pixel is located on one side of the first sub-pixel and the second sub-pixel along the first direction; Optionally, in all third pixel units, all the first sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent first sub-pixels is equal to a first value; along the second direction, the distance between any two adjacent first sub-pixels is equal to a second value; Optionally, in all third pixel units, all the second sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent second sub-pixels is equal to a third value; along the second direction, the distance between any two adjacent second sub-pixels is equal to a fourth value; Optionally, in all third pixel units, all the third sub-pixels are arranged in rows along the first direction and in columns along the second direction; Along the first direction, the distance between any two adjacent third sub-pixels is equal to a fifth value; along the second direction, the distance between any two adjacent third sub-pixels is equal to a sixth value; Optionally, all the third pixel units are arranged in rows along the first direction and in columns along the second direction; in the same row of the third pixel units, the distance between the sides of the third pixel units in the first column and the third pixel units in the last column facing away from each other is between 0.3 cm and 1 cm.

9. The display panel according to claim 6, characterized in that: In the first pixel units in the same row of the first bending area, the distance between the first pixel units in the first column and the first pixel units in the last column, which are away from each other, is a first distance; In the same row of the second pixel units in the first straight area, the distance between the second pixel units in the first column and the second pixel units in the last column, which are away from each other, is a second distance; In the third pixel units in the same row of the second bending area, the distance between the third pixel units in the first column and the third pixel units in the last column, which are away from each other, is a third distance; The ratio of the first distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.015; and / or the ratio of the third distance to the sum of the first distance, the second distance and the third distance is between 0.005 and 0.

015.

10. A display device, characterized in that: Comprising a display panel as described in any one of claims 1 to 9.

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