Display panel, spliced screen and display device

Abstract

Embodiments of the present application disclose a display panel, a spliced screen and a display device. The display panel comprises an array substrate and a plurality of pixel units. The plurality of pixel units arranged along a first direction comprise a first pixel unit and a second pixel unit. The first pixel unit is the pixel unit closest to the boundary of the array substrate among the plurality of pixel units arranged along the first direction. The second pixel unit is the pixel unit located on the side, away from the boundary of the array substrate, of the first pixel unit. In the first direction, the first light emitting element is the light emitting element closest to the boundary of the array substrate among the first pixel unit. The long side of the first light emitting element is not parallel to the first direction. And / or, the arrangement direction of the at least two light emitting elements, including the first light emitting element, in the first pixel unit is not parallel to the first direction. The embodiments of the present application can increase the distance between the edge light emitting element and the edge of the substrate, prevent the problem of dead light or poor display at the edge of the display panel, and ensure the normal display of the display panel.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of display, in particular to a display panel, a spliced screen and a display device. BACKGROUND

[0002] The spliced screen is a large-size display device composed of multiple display units through physical splicing. The core is to eliminate or reduce the gap between units by using splicing technology to achieve seamless or micro-gap visual effect.

[0003] For the spliced screen formed by splicing the light emitting diode (LED) display panel, it needs to be single-screen without frame, that is, the distance between the chip at the edge and the edge of the substrate needs to be very close. However, due to the need for various packaging and support, the LED chip at the left and right edges which are too close to the edge will be affected, resulting in dead light or defects. SUMMARY

[0004] The present application provides a display panel, a spliced screen and a display device to increase the distance between the edge light emitting element and the edge of the substrate, and to improve the problem of dead light or defects caused by the edge light emitting element being too close to the edge of the substrate.

[0005] In a first aspect, embodiments of the present application provide a display panel, comprising:

[0006] An array substrate;

[0007] A plurality of pixel units located on the array substrate and arranged in an array along a first direction and a second direction; the first direction and the second direction are perpendicular to each other and both are parallel to the plane where the array substrate is located;

[0008] The pixel unit includes at least two light emitting elements, and the orthogonal projection of the light emitting element on the plane where the array substrate is located is a rectangle;

[0009] The plurality of pixel units arranged along the first direction includes a first pixel unit and a second pixel unit, the first pixel unit is the pixel unit closest to the boundary of the array substrate among the plurality of pixel units arranged along the first direction, and the second pixel unit is the pixel unit located on the side away from the boundary of the array substrate of the first pixel unit;

[0010] In the first direction, the distance between the geometric center of any first pixel unit and the geometric center of the adjacent pixel unit is P1, and the distance between the geometric center of any second pixel unit and the geometric center of the adjacent pixel unit is P2, wherein P1=P2;

[0011] The first pixel unit comprises a first light emitting element; in the first direction, the first light emitting element is the light emitting element closest to the boundary of the array substrate in the first pixel unit; the long side of the first light emitting element is not parallel to the first direction; and / or, the arrangement direction of at least two light emitting elements including the first light emitting element in the first pixel unit is not parallel to the first direction;

[0012] In the second pixel unit, the long side of the light emitting element is parallel to the first direction, and the at least two light emitting elements are arranged along the first direction.

[0013] In a second aspect, the embodiments of the present application further provide a spliced screen comprising at least two display panels provided by any of the embodiments of the present application.

[0014] In a third aspect, the embodiments of the present application further provide a display device comprising any of the display panels provided by the embodiments of the present application.

[0015] The technical scheme of the embodiments of the present application can reduce the distance between the first light emitting element closest to the edge and the edge of the array substrate to a certain extent, avoid the problem that the light emitting element arranged on one side is too close to the edge of the array substrate, is interfered by the packaging structure or the supporting structure, and is not welded well or even falls off, prevent the problem of dead light or poor display at the edge of the display panel, and ensure the normal display of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of a display panel in the related art;

[0017] Figure 2 is Figure 1 is an enlarged view of the dashed box of the display panel shown in FIG. 1;

[0018] Figures 3-5 is a structural schematic diagram of three display panels provided by the embodiments of the present application;

[0019] Figure 6 and Figure 7 is a structural schematic diagram of another two display panels provided by the embodiments of the present application;

[0020] Figure 8 and Figure 9 is a structural schematic diagram of another two display panels provided by the embodiments of the present application; is a structural schematic diagram of another two display panels provided by the embodiments of the present application;

[0021] Figure 10 and Figure 11 are structural schematic diagrams of two other display panels provided by embodiments of the present application;

[0022] Figure 12 is a structural schematic diagram of another display panel provided by an embodiment of the present application;

[0023] Figure 13 and Figure 14 are structural schematic diagrams of two other display panels provided by embodiments of the present application;

[0024] Figure 15 and Figure 16 are structural schematic diagrams of two other display panels provided by embodiments of the present application;

[0025] Figure 17 is a structural schematic diagram of another display panel provided by an embodiment of the present application;

[0026] Figure 18 is a schematic diagram of a spliced screen provided by an embodiment of the present application. DETAILED DESCRIPTION

[0027] The present application will be further described below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0028] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. It should be noted that the orientation words such as “upper”, “lower”, “left”, “right” and the like described in the embodiments of the present application are described with the angle shown in the drawings, and should not be understood as limiting the embodiments of the present application. In addition, it should be understood in the context that when referring to an element being formed “on” or “under” another element, it can be directly formed “on” or “under” another element, or indirectly formed “on” or “under” another element through an intermediate element. The terms “first”, “second” and the like are only for the purpose of description, and do not represent any order, quantity or importance, but are only used to distinguish different components. The above terms in the present application can be understood according to the specific meaning by the person skilled in the art.

[0029] The term “including” and its variants used in the present application are open inclusion, i.e. “including but not limited to”. The term “based on” is “at least partially based on”. The term “one embodiment” means “at least one embodiment”.

[0030] It should be noted that the "first", "second", and the like mentioned in the present application are only used to distinguish the corresponding content, and are not used to limit the order or mutual dependence.

[0031] It should be noted that the "one", "multiple" modification mentioned in the present application is illustrative and not restrictive, and those skilled in the art should understand that unless the context clearly indicates otherwise, it should be understood as "one or more".

[0032] Figure 1 is a structural schematic diagram of a display panel in the related art, Figure 2 is Figure 1 is an enlarged view of the dashed box of the display panel shown in Figure 1 and Figure 2 The spliced screen 2' of the related art adopts a micro light emitting diode (Micro LED) display panel 1', as shown in four display panels 1' spliced to form, wherein the arrangement modes of the Micro LED chips 200' in the four display panels 1' are consistent in the in-plane and edge regions. Exemplarily, the same pixel unit 20' includes red, green, and blue Micro LED chips 200', and each pixel unit 20' is arranged in a period P array, and the red, green, and blue Micro LED chips 200' in each pixel unit 20' are arranged at equal intervals in color order.

[0033] However, due to the above fixed arrangement mode, the distance D2 between the pixel unit 20' at the upper and lower edges and the upper and lower edges of the substrate, and the distance D1 between the pixel unit 20' at the left and right edges and the left and right edges of the substrate will be different, as shown in D2>D1, the Micro LED chip 200' at the left and right edges is too close to the edge of the substrate, thereby forming a too narrow left and right frame. Because each display panel needs to be supported and packaged before splicing, the Micro LED at the left and right edges will be touched, pressed, or other physical disturbances by the supporting structure or the packaging structure during the supporting and packaging, resulting in poor welding or even falling off of the Micro LED chip 200' at the left and right edges, causing the Micro LED chip 200' at the left and right edge regions to be dead or poor, affecting the display of the spliced screen.

[0034] In view of the above technical problems, the present application embodiment provides a plurality of display panels. Figures 3-5 is a structural schematic diagram of three display panels provided by the present application embodiment, referring to Figures 3-5The display panel includes an array substrate 10 and a plurality of pixel units 20. The plurality of pixel units 20 are located on the array substrate 10 and are arranged in an array along a first direction X and a second direction Y; the first direction X and the second direction Y are perpendicular to each other and both parallel to the plane on which the array substrate 10 is located. Each pixel unit 20 includes at least two light-emitting elements 200, and the orthographic projection of the light-emitting elements 200 onto the plane on which the array substrate 10 is located is rectangular.

[0035] First, the first direction X can be understood as the row direction, and the second direction Y can be understood as the column direction. In this display panel, by controlling the display color of each pixel unit 20 at the microscopic level, and lighting up each pixel unit 20 row by row, the macroscopic display of the entire image can be achieved based on the visual persistence effect of the human eye. The array substrate 10 in the figure only has four rows and four columns of pixel units 20 for illustration purposes; in actual products, the number of pixel units can be in the tens of thousands, and this is not a limitation. Specifically, each pixel unit 20 includes at least two light-emitting elements, which can be set to different colors. By matching at least two colors of light-emitting elements, the pixel unit 20 can achieve the display of the corresponding color. For example, as shown... Figures 3-5 As shown, each pixel unit 20 may include a red light-emitting element 2001, a green light-emitting element 2002, and a blue light-emitting element 2003. Rich color display is achieved through the matching of the three primary colors: red, green, and blue. Of course, those skilled in the art can also choose other numbers and colors of light-emitting elements to achieve the color matching of the pixel unit 20. For example, at least two light-emitting elements can be set, and the emitted light color of different light-emitting elements can be adjusted by using quantum dots of different sizes to achieve a color matching scheme. This embodiment of the invention does not limit this. The light-emitting elements in this embodiment are essentially light-emitting chips, such as LED light-emitting chips, including Micro LED chips, mini light-emitting diode (mini LED) chips, nano light-emitting diode (nano LED) chips, etc. Since light-emitting chips are usually designed with a cubic structure, their projection on the array substrate 10 is usually rectangular, that is, it has a long side and a short side. Regarding the projection on the array substrate 10, since the projection of the light-emitting element is rectangular, it can have different settings when it is transferred to the array substrate 10, such as a horizontal setting where the long side is parallel to the row direction or a vertical setting where the long side is parallel to the column direction.

[0036] Further, the plurality of pixel units 20 arranged along the first direction X includes a first pixel unit 21 and a second pixel unit 22, the first pixel unit 21 is the pixel unit 20 closest to the boundary of the array substrate 10 among the plurality of pixel units 20 arranged along the first direction X, and the second pixel unit 22 is the pixel unit 20 located on the side of the first pixel unit 21 away from the boundary of the array substrate 10; in the first direction X, the distance between the geometric center of any first pixel unit 21 and the geometric center of the adjacent pixel unit 20 is P1, and the distance between the geometric center of any second pixel unit 22 and the geometric center of the adjacent pixel unit 20 is P2, wherein P1=P2.

[0037] Here, the first pixel unit 21 can be understood as the pixel unit 20 located at the edge of the array substrate 10, and the second pixel unit 22 can be understood as at least part of the pixel units 20 on the array substrate 10 that are not at the edge. By setting P1=P2, it is indicated that the first pixel unit 21 and the second pixel unit 22 still satisfy the effect of array arrangement, and the spacing between the geometric centers of the adjacent pixel units 20 in the edge region and the non-edge region is uniform, which ensures the display uniformity of the edge region and the non-edge region in the macroscopic view.

[0038] Further, the first pixel unit 21 includes a first light emitting element 201; in the first direction X, the first light emitting element 201 is the light emitting element closest to the boundary of the array substrate 10 in the first pixel unit 21; the long side of the first light emitting element 201 is not parallel to the first direction X, as shown in Figure 3 and Figure 5 Further, the first pixel unit 21 includes a first light emitting element 201; in the first direction X, the first light emitting element 201 is the light emitting element closest to the boundary of the array substrate 10 in the first pixel unit 21; the long side of the first light emitting element 201 is not parallel to the first direction X, as shown in Figure 4 and Figure 5 Further, the first pixel unit 21 includes a first light emitting element 201; in the first direction X, the first light emitting element 201 is the light emitting element closest to the boundary of the array substrate 10 in the first pixel unit 21; the long side of the first light emitting element 201 is not parallel to the first direction X, as shown in

[0039] For the non-edge second pixel unit 22, the long sides of the light emitting elements therein are parallel to the first direction X, and each of the light emitting elements therein is arranged along the first direction X, which means that in at least part of the pixel units 20 in the non-edge region, the light emitting elements are in a transverse posture and arranged transversely, and each light emitting element is arranged in a posture that occupies the maximum length in the first direction X (i.e., the row direction) and the minimum length in the second direction Y (i.e., the column direction).

[0040] For the edge first pixel unit 21, there is a difference in the arrangement manner of the light emitting elements, including the arrangement posture and the arrangement direction, compared with the arrangement manner of the light emitting elements in the above-mentioned second pixel unit 22, so as to avoid the problem that when the pixel unit 20 occupies the maximum length in the first direction X, the gap between the light emitting element and the edge of the array substrate 10 in this direction is too small, specifically:

[0041] In such Figure 3 In the illustrated embodiment, the first light-emitting element 201 in the first pixel unit 21 represents the light-emitting element closest to the edge of the array substrate 10 in the first direction X, i.e., the row direction. Furthermore, the light-emitting elements closest to the edge of the array substrate 10 on the left and right sides in the row direction are not the same, distinguished by different fills in the figure. For example, the first light-emitting element 201 on the left is a red light-emitting element 2001, and the first light-emitting element 201 on the right is a blue light-emitting element 2003. This embodiment essentially adjusts the orientation of the first light-emitting element 201 so that its long side is not parallel to the first direction X, but is in an inclined orientation (i.e., its long side is not parallel to the first direction X), or in a vertical orientation (i.e., its long side is parallel to the second direction Y), rather than a horizontal orientation. This allows adjustment of the gap between the outermost first light-emitting element 201 and the edge of the array substrate 10, avoiding the problem of the outermost pixel unit 20 occupying the maximum length in the row direction when arranged horizontally, resulting in an excessively small gap.

[0042] like Figure 4 The embodiment shown essentially adjusts the arrangement direction of the light-emitting elements in the first pixel unit 21 located at the outermost edge while keeping the long side of the light-emitting element parallel to the first direction X. This allows at least two light-emitting elements, including the first light-emitting element 201, to be arranged in a non-parallel direction to the first direction X, either along an inclined direction or vertically. This also allows for the adjustment of the gap between the first light-emitting element 201 at the outermost edge and the edge of the array substrate 10, avoiding the problem of the outermost pixel unit 20 occupying the maximum length in the row direction when arranged in a horizontal orientation, which would result in an excessively small gap.

[0043] like Figure 5 The embodiment shown essentially adjusts the orientation of the first light-emitting element 201 so that its long side is not parallel to the first direction X, and is in an inclined or vertical orientation instead of a horizontal orientation. At the same time, the arrangement direction of the light-emitting elements in the first pixel unit 21 located at the outermost edge is adjusted so that the arrangement direction of at least two light-emitting elements, including the first light-emitting element 201, is not parallel to the first direction X, and is arranged in an inclined or vertical orientation. In this way, the gap between the first light-emitting element 201 at the outermost edge and the edge of the array substrate 10 can also be adjusted, avoiding the problem that the outermost pixel unit 20 occupies the maximum length in the row direction when it is in a horizontal orientation and arranged horizontally, resulting in an excessively small gap.

[0044] In such Figure 3In the illustrated embodiment, adjusting the orientation of the outermost first light-emitting element 201 can be simply understood as a rotational adjustment centered on its own geometric center. For the left and right first light-emitting elements 201, opposite rotation directions and the same rotation angle can be used, such as... Figure 3 For example, the first light-emitting elements 201 on both sides are symmetrical after rotation. Of course, the same rotation direction and rotation angle can also be used, which is not a limitation here.

[0045] In such Figure 4 In the illustrated embodiment, adjusting the arrangement direction of the light-emitting elements in the outermost first pixel unit 21 can be simply understood as a rotation adjustment centered on the geometric center of the pixel unit 20, while maintaining the horizontal orientation of the light-emitting elements during the rotation. Similarly, when rotating the arrangement direction of the light-emitting elements in the first pixel unit 21, an opposite rotation direction with the same rotation angle can also be used, such as... Figure 4 For example, the first pixel units 21 on both sides are symmetrical after rotation. Of course, the same rotation direction and rotation angle can also be used, which is not a limitation here.

[0046] In such Figure 5 In the illustrated embodiment, the adjustment of the outermost first pixel unit 21 can be simply understood as a rotation adjustment centered on the geometric center of the first pixel unit 21, with the long side direction consistent with the arrangement direction. The choice of rotation direction and rotation angle in this embodiment is also not limited, and can be as follows: Figure 5 The example setup is as described above and will not be repeated here.

[0047] In summary, in the three embodiments, the setting posture and arrangement of the light-emitting elements in the first pixel unit 21 are adjusted by rotation. At the same time, since the light-emitting elements are in a microstructure, the change in their posture and arrangement has little impact on human eye perception. On a macroscopic level, they can still cooperate with other pixel units to present a complete and uniform image display effect.

[0048] It is important to understand that, for Figure 3 and Figure 5In the illustrated embodiment, in the process of rotating the first light emitting element 201 or the first pixel unit 21, the distance between the edge of the first light emitting element 201 closest to the edge of the array substrate 10 and the edge of the array substrate 10 is strictly speaking the distance D1 between the vertex of the first light emitting element 201 closest to the edge of the array substrate 10 and the edge of the array substrate 10. In terms of the diagonal of a rectangle, the distance D1 between the first light emitting element 201 and the edge of the array substrate 10 gradually decreases in the process of rotation, reaches a minimum when the diagonal is parallel to the first direction X, and gradually increases, reaching a maximum when the short side is parallel to the first direction X. However, since the purpose of adjusting the setting posture of the first light emitting element 201 or the first pixel unit 21 is to avoid the influence of the edge-arranged packaging or support structure on the edge-arranged light emitting element, the above-mentioned rotation adjustment scheme, even if the absolute distance D1 decreases, the area of the region of the first light emitting element 201 close to the edge of the array substrate 10 is actually continuously reduced. In this understanding, even if the absolute distance D1 decreases after rotation, the first light emitting element 201 can still avoid the influence of the edge-arranged packaging structure or support structure to some extent.

[0049] In addition, it is also intended to supplement that, in the case of Figures 3-5 In the illustrated embodiment, since the adjustment of the setting mode of the first light emitting element 201 or the first pixel unit 21 is essentially to sacrifice the distance D2 between the light emitting element in the second direction Y and the edge of the array substrate 10 to increase the distance D1 between the light emitting element in the first direction X and the edge of the array substrate 10, when adjusting the first light emitting element 201 and the first pixel unit 21, the distance D2 between the light emitting element in the second direction Y and the edge of the array substrate 10 also needs to be considered to balance the size of the frame in both directions. In the illustrated embodiment, Figure 5 In the illustrated embodiment, the light emitting elements in the first pixel unit 21 can be arranged in a direction at an angle of 45° with respect to the first direction X, and the light emitting elements are also inclined in this direction. At this time, D1=D2, which can balance the size of the frame in the first direction X and the second direction Y, and avoid the problem that the small frame on one side is easily affected by the packaging structure or support structure.

[0050] The technical scheme above, by setting the long side of the first light emitting element at the edge in the first pixel unit to be non-parallel to the first direction, and / or setting the arrangement direction of at least two light emitting elements including the first light emitting element in the first pixel unit to be non-parallel to the first direction, and setting the long side of the light emitting element in the second pixel unit in the non-edge region to be parallel to the first direction and arranged along the first direction, can reduce the distance between the first light emitting element at the edge and the edge of the array substrate to a certain extent, avoid the light emitting element arranged on one side from being too close to the edge of the array substrate, and thus being interfered by the packaging structure or the support structure, and thus causing poor welding or even falling off, prevent the dead lamp or poor display at the edge of the display panel, and ensure the normal display of the display panel.

[0051] With reference to the foregoing Figures 3-5 In the embodiment of the present application, in the first direction X, the distance between the geometric center of any first light emitting element 201 and the geometric center of the light emitting element of the same color in the adjacent pixel unit 20 is L1, and the distance between the geometric center of any light emitting element in the second pixel unit 22 and the geometric center of the light emitting element of the same color in the adjacent pixel unit 20 is L2, wherein L1≤L2.

[0052] Specifically, in the embodiment shown in Figures 3-5 For example, the first light emitting element 201 at the left edge of the middle is a red light emitting element 2001, and the light emitting element of the same color in the adjacent pixel unit 20 is also a red light emitting element 2001, and the distance between the geometric centers of the two red light emitting elements 2001 is L1. For the light emitting element in any second pixel unit 22, for example, the red light emitting element 2001, the light emitting element of the same color in the adjacent pixel unit 20 is also a red light emitting element 2001, and the distance between the geometric centers of the two red light emitting elements 2001 is L2. Thus, in the embodiment shown in Figure 3 In the embodiment shown in Figure 4 and Figure 5 In the embodiment shown in

[0053] More specifically, Figure 6 and Figure 7are structural schematic diagrams of two other display panels provided by embodiments of the present application, for reference Figure 3 、 Figure 6 and Figure 7 In some embodiments of the present application, optionally, the long side of the first light emitting element 201 is not parallel to the first direction X, and meanwhile, at least two light emitting elements in the first pixel unit 21 are arranged along the first direction X. In these embodiments, the arrangement direction of the light emitting elements in the first pixel unit 21 is kept the same as that of the light emitting elements in the second pixel unit 22 on the basis of rotating the setting posture of the first light emitting element 201.

[0054] Continuing to refer to Figure 6 and Figure 7 , compared with the embodiments shown in Figure 3 , optionally, the long side of the first light emitting element 201 can be arranged to be parallel to the second direction Y.

[0055] At this time, the short side of the first light emitting element 201 is parallel to the first direction X, i.e., the row direction, the width of the first light emitting element 201 in the first direction X, i.e., the row direction, is equal to the length of the short side on the basis of keeping the geometric center position unchanged, and reaches the minimum, and the distance between the first light emitting element 201 and the edge of the array substrate 10 reaches the maximum, effectively increasing the space of the frame in the row direction and avoiding the problem that the light emitting element in the row direction is too close to the edge of the array substrate 10. As shown in Figure 7 , for the light emitting elements other than the first light emitting element 201 in the first pixel unit 21, the setting posture thereof can also be adjusted synchronously, for example, the green light emitting element 2002 and the blue light emitting element 2003 are both rotated around the geometric center thereof to present a vertical posture. This embodiment can avoid affecting the field of view distribution of the whole pixel unit when the setting posture of a single light emitting element is changed, leading to obvious differences in the light emitting effect between the first pixel unit 21 and the second pixel unit 22, and can balance the light emission of the light emitting elements in the first pixel unit 21 by synchronously adjusting the setting posture of the light emitting elements other than the first light emitting element 201 in the first pixel unit 21, and reduce the difference in the field of view distribution between the first pixel unit 21 and the second pixel unit 22, thereby avoiding affecting the uniformity of the display picture in the macroscopic view.

[0056] Figure 8 and Figure 9 are structural schematic diagrams of two other display panels provided by embodiments of the present application, for reference Figure 8 and Figure 9 , compared with the embodiments shown in Figure 4 and Figure 5 , in some other embodiments of the present application, the arrangement direction of at least two light emitting elements in the first pixel unit 21 can also be optionally arranged to be parallel to the second direction Y. More specifically, continuing to refer toFigure 8 Optionally, the long side of the first light emitting element 201 is parallel to the first direction X, or, continuing to refer to Figure 9 Optionally, the long side of the first light emitting element 201 is parallel to the second direction Y.

[0057] It can be understood that by rotating the arrangement direction of the light emitting element in the first pixel unit 21 to be parallel to the second direction Y, the arrangement direction of the light emitting element in the first pixel unit 21 is substantially changed. When the light emitting elements in the first pixel unit 21 are arranged along the first direction X, i.e., the row direction, the distance between the first light emitting element 201 and the edge of the array substrate 10 is too close. By changing the arrangement direction of the light emitting element, the first light emitting element 201 is moved inward in the row direction, thereby increasing the distance between the first light emitting element 201 and the edge of the array substrate 10, avoiding the interference caused by the packaging structure or the support structure due to the too close distance to the edge. It should be noted that when all the light emitting elements in the first pixel unit 21 are arranged along the second direction Y, i.e., the column direction, and the setting posture of each light emitting element is the same, the distance between each light emitting element and the edge of the array substrate 10 in the first direction X, i.e., the row direction, is equal, that is, each light emitting element can be substantially the first light emitting element 201.

[0058] Continuing to refer to Figure 3 , Figure 4 , Figures 6-9 In these display panels, in addition to the first light emitting element 201 closest to the edge of the array substrate 10, the first pixel unit 21 also includes other light emitting elements. Specifically, the first pixel unit 21 further includes a second light emitting element 202, and the color of the first light emitting element 201 is different from that of the second light emitting element 202. The long side of the second light emitting element 202 is parallel to the first direction X or the second direction Y.

[0059] For example, taking the first light emitting element 201 as a red light emitting element 2001, the second light emitting element 202 can be a green light emitting element 2002 or a blue light emitting element 2003. The long side of the second light emitting element 202 is parallel to the first direction X or the second direction Y, which means that the second light emitting element 202 can be set in a horizontal posture or a vertical posture. Since the second light emitting element 202 does not affect the distance to the edge of the array substrate 10 in the row direction, in some embodiments, the second light emitting element 202 can be considered to cooperate with the adjusted first light emitting element 201 to balance the light emission of the light emitting elements in the first pixel unit 21, reduce the difference in field of view distribution between the first pixel unit 21 and the second pixel unit 22, and ensure the uniformity of the display picture in the macroscopic view.

[0060] Of course, when there are more than two light emitting elements in the first pixel unit 21, i.e. the first pixel unit 21 can also include a third light emitting element 203, thus, the second light emitting element 202 and the third light emitting element 203, i.e. the light emitting elements other than the first light emitting element 201, can be further arranged in the same arrangement posture, i.e. arranged with the long side parallel to the first direction X or the second direction Y.

[0061] In yet some embodiments of the present application, optionally, the distance between the light emitting elements in the first pixel unit 21 is S1, and the distance between the light emitting elements in the second pixel unit 22 is S2, wherein S1≥S2.

[0062] For example, in the embodiments shown in Figure 7 and Figure 8 , the arrangement direction of the light emitting elements in the second pixel unit 22 is parallel to the extension direction of the long side, at this time, the gap between the light emitting elements is minimum, i.e. S2. Since the arrangement direction of the light emitting elements in the first pixel unit 21 is parallel to the extension direction of the short side, at this time, the gap between the light emitting elements in the first pixel unit 21 is increased and reaches maximum. In these embodiments, the gap S1 between the light emitting elements in the first pixel unit 21 is obviously larger than the gap S2 between the light emitting elements in the second pixel unit 22.

[0063] For example, in the embodiments shown in Figure 5 , the arrangement direction of the light emitting elements in the first pixel unit 21 and the second pixel unit 22 is parallel to the extension direction of the long side, at this time, the gap between the light emitting elements is minimum, i.e. S1=S2.

[0064] Further, for the embodiments shown in Figure 7 and Figure 8 , the present application also provides other preferred embodiments. Figure 10 and Figure 11 are structure diagrams of two other display panels provided by embodiments of the present application, referring to Figure 10 and Figure 11 , when the arrangement direction of the light emitting elements in the first pixel unit 21 is parallel to the extension direction of the short side, the gap between the light emitting elements can be reduced to equal the gap between the light emitting elements in the second pixel unit 22, i.e. S1=S2, on the basis of keeping the geometric center position of the first pixel unit 21 unchanged. For example, Figure 10In the illustrated embodiment, the red light emitting elements 2001 and the green light emitting elements 2002 on the left and right sides can be moved towards the middle green light emitting element 2002 on the basis that the middle green light emitting element 2002 remains unchanged until the interval S1=S2, at which time the red light emitting element 2001 closest to the edge of the array substrate 10 in the row direction, i.e. the first light emitting element 201, can be moved away from the edge of the array substrate 10, thereby solving the problem of the edge light emitting element being too close to the edge of the array substrate 10 in the row direction. Similarly, in the illustrated embodiment, the red light emitting elements 2001 and the green light emitting elements 2002 on the top and bottom sides can be moved towards the middle green light emitting element 2002 on the basis that the middle green light emitting element 2002 remains unchanged until the interval S1=S2, at which time the red light emitting element 2001 closest to the edge of the array substrate 10 in the column direction, i.e. the first light emitting element 201, can be moved away from the edge of the array substrate 10, thereby ensuring that the distance between the light emitting element and the edge of the array substrate 10 increases in the row direction while avoiding the edge light emitting element being too close to the edge of the array substrate 10 in the column direction. Figure 11 In the illustrated embodiment, the red light emitting elements 2001 and the green light emitting elements 2002 on the left and right sides can be moved towards the middle green light emitting element 2002 on the basis that the middle green light emitting element 2002 remains unchanged until the interval S1=S2, at which time the red light emitting element 2001 closest to the edge of the array substrate 10 in the row direction, i.e. the first light emitting element 201, can be moved away from the edge of the array substrate 10, thereby solving the problem of the edge light emitting element being too close to the edge of the array substrate 10 in the row direction. Similarly, in the illustrated embodiment, the red light emitting elements 2001 and the green light emitting elements 2002 on the top and bottom sides can be moved towards the middle green light emitting element 2002 on the basis that the middle green light emitting element 2002 remains unchanged until the interval S1=S2, at which time the red light emitting element 2001 closest to the edge of the array substrate 10 in the column direction, i.e. the first light emitting element 201, can be moved away from the edge of the array substrate 10, thereby ensuring that the distance between the light emitting element and the edge of the array substrate 10 increases in the row direction while avoiding the edge light emitting element being too close to the edge of the array substrate 10 in the column direction.

[0065] In the above embodiment, the first pixel unit 21 mainly includes the pixel unit 20 located in the leftmost column or the rightmost column in the row direction. However, considering the pixel unit 20 at the corner position of the array substrate, it will not only affect the interval between the light emitting element and the edge of the array substrate in the row direction, but also affect the interval between the light emitting element and the edge of the array substrate in the column direction. Therefore, for the first pixel unit 21 at the corner position, the present application also provides a corresponding implementation manner.

[0066] Figure 12 is another structure schematic diagram of a display panel provided by an embodiment of the present application, referring to Figure 12 Optionally, the arrangement direction of the at least two light emitting elements in the first pixel unit 21 is not parallel to the first direction X and the second direction Y. Meanwhile, optionally, the long side of the first light emitting element 201 is parallel to the arrangement direction of the at least two light emitting elements in the first pixel unit 21.

[0067] It can be understood that when the arrangement direction of the light emitting elements in the first pixel unit 21 is parallel to the long side of the light emitting element, it means that the first pixel unit 21 will occupy the maximum length in the direction of the arrangement of the light emitting elements. If the arrangement direction of the light emitting elements in the first pixel unit 21 at the corner is set as the first direction X or the second direction Y, it will cause the distance between the light emitting element and the edge of the array substrate 10 in the first direction X or the second direction Y to be too small. Therefore, the arrangement direction of the light emitting elements in the first pixel unit 21 is not parallel to the first direction X and the second direction Y in the present embodiment, i.e. the arrangement is inclined, which can balance the interval between the light emitting element and the edge of the array substrate 10 in the row direction and the column direction, thereby avoiding the problem of the interval on any side being too small.

[0068] It should be noted that, as Figure 12 In the above embodiment, the arrangement direction of the first pixel units 21 at the four corner positions is set to 45°, and the four first pixel units 21 are in an axial symmetry and a central symmetry relationship, which is only an example of the present application, and a person skilled in the art can make reasonable selection and setting, and this is not limited too much here.

[0069] Figure 13 And Figure 14 are structure diagrams of two other display panels provided by the embodiments of the present application, referring to Figure 13 And Figure 14 , for the first pixel unit 21 at the corner position, the present application further provides a plurality of setting modes. Specifically, the first pixel unit 21 further includes a second light emitting element 202 and a third light emitting element 203; based on this, the first light emitting element 201 and the second light emitting element 202 can be arranged in the same direction and the arrangement direction is not parallel to the first direction X; in the second direction Y, the distance between the second light emitting element 202 and the edge of the array substrate 10 is less than the distance between the first light emitting element 201 and the edge of the array substrate 10; the second light emitting element 202 and the third light emitting element 203 are arranged in the first direction X, that is, as Figure 13 indicated; or, the combination of the first light emitting element 201 and the second light emitting element 202 and the third light emitting element 203 are arranged in the first direction X, that is, as Figure 14 indicated.

[0070] As Figure 13 And Figure 14 indicated, for the first pixel unit 21 at the corner position, two light emitting elements in the embodiments of the present application, i.e. the first light emitting element 201 and the second light emitting element 202, can be arranged in a direction not parallel to the first direction X, in other words, the arrangement direction of the first light emitting element 201 and the second light emitting element 202 can be changed by rotating a certain angle around the geometric center of the second light emitting element 202 or around the geometric center of the combination of the first light emitting element 201 and the second light emitting element 202. At this time, for the two light emitting elements, on the basis of appropriately increasing the distance between the first light emitting element 201 and the edge of the array substrate 10 in the row direction, the distance between the second light emitting element 202 and the edge of the array substrate 10 in the column direction can be avoided to be too small to some extent, and the distances between the light emitting elements and the edge of the array substrate 10 in the row direction and the column direction are balanced.

[0071] It should be noted that after the rotation of the first light emitting element 201 and the second light emitting element 202, considering that the geometric center of the entire pixel unit will be offset, affecting the periodic array arrangement of the pixel unit, in order to ensure the uniformity of the display, it is necessary to move the position of the pixel unit as a whole, so that the distance P1 between the geometric center of the pixel unit and the geometric center of the adjacent pixel unit 20 is equal to the distance P2 between the geometric center of the second pixel unit 22 and the geometric center of the adjacent pixel unit 20.

[0072] Figure 15 and Figure 16 are schematic structural diagrams of two other display panels provided by the embodiments of the present application, referring to Figure 15 and Figure 16 , further, the first light emitting element 201 and the second light emitting element 202 can also be arranged along the second direction Y.

[0073] In addition, it is also optional that the long side of at least one of the first light emitting element 201, the second light emitting element 202 and the third light emitting element 203 is parallel to the first direction X, and / or the long side of at least one of the first light emitting element 201, the second light emitting element 202 and the third light emitting element 203 is parallel to the second direction Y.

[0074] As shown in the embodiments of Figure 15 and Figure 16 , by means of a specific light emitting element arrangement, i.e. the first light emitting element 201 and the second light emitting element 202 are arranged in the column direction, and the second light emitting element 202 and the third light emitting element 203 are arranged in the row direction, the first light emitting element 201 is realized away from the edge of the array substrate 10 in the row direction, at the same time, the distance between the second light emitting element 202 and the edge of the array substrate 10 in the column direction is avoided to be too close, and the purpose of balancing the distance between the light emitting element and the edge of the array substrate 10 in the row direction and the column direction is achieved. In addition, compared with Figure 13 and Figure 14 , as shown in the embodiments of Figure 15 and Figure 16 , the first light emitting element 201 and the second light emitting element 202 are arranged along the second direction Y, which can minimize the distance between the first light emitting element 201 and the second light emitting element 202 and the edge of the array substrate 10 in the row direction from the perspective of light emitting element arrangement. On this basis, since the setting posture of the light emitting element, especially the first light emitting element 201 and the second light emitting element 202, also affects the distance between the light emitting element and the edge of the array substrate 10 in the row direction to some extent, in the optional embodiments of the present application, the setting posture of the first light emitting element 201 and the second light emitting element 202, such as the extension direction of the long side, can be set to be parallel to the first direction X or parallel to the second direction Y. Exemplarily, in Figure 15 and Figure 16In the illustrated embodiment, the long sides of the first light emitting element 201 and the second light emitting element 202 are parallel to the second direction Y, at this time, from the perspective of the arrangement posture of the light emitting elements, the distance of each light emitting element in the row direction from the edge of the array substrate 10 can be minimized as possible. For the third light emitting element 203, the person skilled in the art can freely arrange, for example, it can be arranged that the long side is parallel to the first direction X or parallel to the second direction Y, which is not limited here.

[0075] It should be noted that when the first light emitting element 201 and the second light emitting element 202 in the first pixel unit 21 are arranged along the second direction Y, i.e. the column direction, and the arrangement postures of the two light emitting elements are the same, the distance of the two light emitting elements in the first direction X, i.e. the row direction, from the edge of the array substrate 10 is equal, that is, the first light emitting element 201 and the second light emitting element 202 can be substantially the first light emitting element 201. To avoid confusion, the definition of the first light emitting element 201 can be supplemented here: the color of the first light emitting element 201 is the same as the color of the light emitting element in the second pixel unit 22 closest to the edge of the array substrate 10 in the first direction X, i.e. the row direction. For the first pixel unit 21 on the left, the first light emitting element 201 is the red light emitting element 2001, the second light emitting element 202 is the green light emitting element 2002, and the third light emitting element 203 is the blue light emitting element 2003. For the first pixel unit 21 on the right, the first light emitting element 201 is the blue light emitting element 2003, the second light emitting element 202 is the green light emitting element 2002, and the third light emitting element 203 is the red light emitting element 2001.

[0076] Continuing to refer to Figures 13-16 Optionally, at least two first pixel units 21 at different positions in the second direction Y have different arrangements and / or arrangement postures.

[0077] Specifically, as Figures 13-16 the illustrated embodiment, the arrangement of the first pixel unit 21 located at the corner position is mainly considered, it can be understood that for the first pixel unit 21 at a non-corner position, the light emitting elements can be designed in a way to minimize the distance of the light emitting elements in the row direction from the edge of the array substrate 10, that is, for the first pixel unit 21 at the corner position and the non-corner position, different arrangements and / or arrangement postures can be used to arrange the light emitting elements therein. Exemplarily, in the first pixel unit 21 at the non-corner position, the light emitting elements are arranged along the second direction Y, and the long side is also parallel to the second direction Y. At this time, the width of the first pixel unit 21 in the first direction X, i.e. the row direction, is the minimum, which is the length of the short side of the light emitting element, and the distance from the edge of the array substrate 10 in the row direction is the farthest.

[0078] Figure 17is a structural schematic diagram of yet another display panel provided by the embodiment of the present application, referring to Figure 17 Optionally, the plurality of pixel units 20 arranged along the first direction X further comprises a third pixel unit 23, the third pixel unit 23 is located at the pixel unit 20 on the side of the first pixel unit 21 away from the boundary of the array substrate 10; the light emitting element of the third pixel unit 23 has the same arrangement mode and / or setting posture as the light emitting element in the first pixel unit 21.

[0079] In the embodiment, the third pixel unit 23 is further provided in the display panel, and the third pixel unit 23 has the same light emitting element arrangement mode and / or setting posture as the first pixel unit 21, that is, the light emitting element arrangement mode and / or setting posture of the pixel unit 20 located at the edge, i.e., the first pixel unit 21, is different from that of the second pixel unit 22, and the light emitting element arrangement mode and / or setting posture of the pixel unit 20 at other positions can also be different from that of the second pixel unit 22, thereby increasing the number of pixel units 20 having the same light emitting element arrangement mode and setting posture as the first pixel unit 21, weakening the influence of changing the light emitting element arrangement mode and setting posture of only the pixel unit 20 at the outermost edge on the uniformity of the display picture, improving the uniformity of the display picture, and improving the picture display quality.

[0080] As shown in Figure 17 , the pixel units 20 in the most edge column and the pixel units 20 in the next edge column in the row direction can be adjusted in the light emitting element arrangement mode and setting posture compared with the pixel units 20 in the middle region, thereby transitioning from the edge to the center region for different pixel units 20, and improving the uniformity of the display picture. Of course, the pixel units 20 in the next edge column are set as the third pixel units 23, which is only an example of the present application. Optionally, more than one column of pixel units 20 adjacent to the first pixel unit 21 can be set as the third pixel units 23. In addition, in the embodiment of the present application, the pixel units 20 in other regions can also be set as the third pixel units 23, for example, every other column of pixel units 20 can be set as the third pixel units 23, and one column of second pixel units 22 is arranged between two columns of third pixel units 23, thereby balancing the light emission of the pixel units 20 having different light emitting element arrangement modes and setting postures as much as possible, improving the uniformity of the whole picture, and improving the picture display quality.

[0081] Based on the same inventive concept, the embodiment of the present application further provides a spliced screen, Figure 18 A spliced screen provided by the embodiment of the present application is shown in Figure 18 , which comprises at least two display panels 1, and the display panel 1 is any display panel provided by the present application. Figure 18The tiled screen 2 is shown to include four display panels 1 in total, i.e. 2*2. The structure of the display panel 1 has been described in the above embodiments and will not be repeated here. The tiled screen 2 provided by the embodiments of the present application can be used for large screen display, for example, applied to conference rooms, exhibition halls, billboards, TV walls and the like.

[0082] Based on the same inventive concept, the embodiments of the present application further provide a display device, which includes the display panel provided by any of the embodiments of the present application. In one embodiment, the display device includes one display panel. In another embodiment, the display device includes a tiled screen formed by splicing at least two display panels.

[0083] Note that the above only describes the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments, mutual combinations and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that, include: Array substrate; Multiple pixel units are located on the array substrate and arranged in an array along a first direction and a second direction; the first direction and the second direction are perpendicular to each other and both are parallel to the plane of the array substrate. The pixel unit includes at least two light-emitting elements, and the orthographic projection of the light-emitting elements onto the plane of the array substrate is rectangular; The plurality of pixel units arranged along the first direction include a first pixel unit and a second pixel unit. The first pixel unit is the pixel unit closest to the boundary of the array substrate among the plurality of pixel units arranged along the first direction, and the second pixel unit is the pixel unit located on the side of the first pixel unit away from the boundary of the array substrate. In the first direction, the distance between the geometric center of any first pixel unit and the geometric center of an adjacent pixel unit is P1, and the distance between the geometric center of any second pixel unit and the geometric center of an adjacent pixel unit is P2, where P1 = P2. The first pixel unit includes a first light-emitting element; in the first direction, the first light-emitting element is the light-emitting element in the first pixel unit that is closest to the boundary of the array substrate; the long side of the first light-emitting element is not parallel to the first direction; and / or, the arrangement direction of at least two light-emitting elements, including the first light-emitting element, in the first pixel unit is not parallel to the first direction. In the second pixel unit, the long side of the light-emitting element is parallel to the first direction, and the at least two light-emitting elements are arranged along the first direction.

2. The display panel according to claim 1, characterized in that, In the first direction, the distance between the geometric center of any first light-emitting element and the geometric center of the light-emitting element of the same color in the adjacent pixel unit is L1, and the distance between the geometric center of any light-emitting element in the second pixel unit and the geometric center of the light-emitting element of the same color in the adjacent pixel unit is L2, where L1≤L2.

3. The display panel according to claim 2, characterized in that, The long side of the first light-emitting element is not parallel to the first direction, and the at least two light-emitting elements in the first pixel unit are arranged along the first direction.

4. The display panel according to claim 3, characterized in that, The long side of the first light-emitting element is parallel to the second direction.

5. The display panel according to claim 2, characterized in that, The arrangement direction of the at least two light-emitting elements in the first pixel unit is parallel to the second direction.

6. The display panel according to claim 5, characterized in that, The long side of the first light-emitting element is parallel to either the first direction or the second direction.

7. The display panel according to claim 4 or 6, characterized in that, The first pixel unit further includes a second light-emitting element, the first light-emitting element being a different color from the second light-emitting element; The long side of the second light-emitting element is parallel to the first direction or the second direction.

8. The display panel according to claim 4 or 6, characterized in that, The distance between the light-emitting elements in the first pixel unit is S1, and the distance between the light-emitting elements in the second pixel unit is S2, wherein S1≥S2.

9. The display panel according to claim 2, characterized in that, The arrangement direction of the at least two light-emitting elements in the first pixel unit is not parallel to either the first direction or the second direction.

10. The display panel according to claim 9, characterized in that, The long side of the first light-emitting element is parallel to the arrangement direction of the at least two light-emitting elements in the first pixel unit.

11. The display panel according to claim 2, characterized in that, The first pixel unit further includes a second light-emitting element and a third light-emitting element; The first light-emitting element and the second light-emitting element are arranged in the same direction but not parallel to the first direction; in the second direction, the distance between the second light-emitting element and the edge of the array substrate is less than the distance between the first light-emitting element and the edge of the array substrate. The second light-emitting element and the third light-emitting element are arranged along the first direction; or, the combination of the first light-emitting element and the second light-emitting element and the third light-emitting element are arranged along the first direction.

12. The display panel according to claim 11, characterized in that, The first light-emitting element and the second light-emitting element are arranged along the second direction.

13. The display panel according to claim 12, characterized in that, The long side of at least one of the first light-emitting element, the second light-emitting element, and the third light-emitting element is parallel to the first direction, and / or the long side of at least one of the first light-emitting element, the second light-emitting element, and the third light-emitting element is parallel to the second direction.

14. The display panel according to claim 1, characterized in that, At least two of the first pixel units at different positions in the second direction have different arrangement and / or orientation.

15. The display panel according to claim 1, characterized in that, The plurality of pixel units arranged along the first direction further includes a third pixel unit, which is located on the side of the first pixel unit away from the boundary of the array substrate; The light-emitting elements of the third pixel unit have the same arrangement and / or setting posture as the light-emitting elements of the first pixel unit.

16. A video wall, characterized in that, It includes at least two display panels as described in any one of claims 1-15.

17. A display device, characterized in that, Includes the display panel as described in any one of claims 1-15.

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