Display panel, spliced screen and display device

Abstract

The embodiment of the invention discloses a display panel, a spliced screen and a display device.The display panel comprises an array substrate and a plurality of pixel units, and the pixel units arranged in the first direction comprise the first pixel unit and the second pixel unit; the first pixel unit is a pixel unit closest to the boundary of the array substrate in a plurality of pixel units arranged in the first direction, and the second pixel unit is a 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 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. According to the embodiment of the invention, the distance between the edge light-emitting element and the edge of the substrate can be increased, the problem of dead light or badness of the edge of the display panel is prevented, and normal display of the display panel is ensured.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of display technology, and in particular to a display panel, a spliced ​​screen and a display device. Background Art

[0002] The splicing screen is a large-size display device composed of multiple display units through physical splicing. Its core lies in using splicing technology to eliminate or reduce the gaps between units to achieve seamless or micro-seam visual effects.

[0003] For a spliced ​​screen formed by splicing light emitting diode (LED) display panels, a single screen needs to be borderless, that is, the chip at the very edge needs to be very close to the edge of the substrate. However, since the edge of a single screen requires various packages and supports, it is easy to affect the LED chips on the left and right edges that are too close to the edge, causing dead lights or defects. Summary of the invention

[0004] The present invention provides a display panel, a spliced ​​screen and a display device to increase the distance between an edge light emitting element and an edge of a substrate, thereby improving the problem of dead light or poor performance caused by the edge light emitting element being too close to the edge of the substrate.

[0005] In a first aspect, an embodiment of the present invention provides a display panel, including:

[0006] An array substrate;

[0007] A plurality of 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 parallel to the plane where the array substrate is located;

[0008] The pixel unit comprises at least two light emitting elements, and the orthographic projection of the light emitting elements on the plane where the array substrate is located is rectangular;

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

[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, where P1=P2;

[0011] The first pixel unit includes 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, an embodiment of the present invention further provides a spliced ​​screen, comprising at least two display panels of any one type provided by an embodiment of the present invention.

[0014] In a third aspect, an embodiment of the present invention further provides a display device, comprising any display panel provided by an embodiment of the present invention.

[0015] The technical solution of the embodiment of the present invention, by setting the long side of the first light-emitting element at the edge to be non-parallel to the first direction in the first pixel unit at the edge, 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 area 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 being too close to the edge of the array substrate, causing the light-emitting element to be interfered by the packaging structure or the supporting structure, resulting in poor welding or even falling 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 THE DRAWINGS

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

[0017] Figure 2 yes Figure 1 The enlarged view of the dashed box of the display panel is shown;

[0018] Figure 3-Figure 5 is a schematic structural diagram of three display panels provided by an embodiment of the present invention;

[0019] Figure 6 and Figure 7 is a schematic diagram of the structure of two other display panels provided by an embodiment of the present invention;

[0020] Figure 8 and Fig. 9 is a schematic diagram of the structure of two further display panels provided by an embodiment of the present invention;

[0021] Fig.10 and Fig.11 is a schematic diagram of the structure of two further display panels provided by an embodiment of the present invention;

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

[0023] Fig.13 and Fig.14 is a schematic diagram of the structure of two further display panels provided by an embodiment of the present invention;

[0024] Fig.15 and Fig.16 is a schematic diagram of the structure of two further display panels provided by an embodiment of the present invention;

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

[0026] Fig.18 A schematic diagram of a spliced ​​screen provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0028] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second", etc. are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0029] The term “including” and its variations used in the present invention are open inclusions, that is, “including but not limited to.” The term “based on” means “based at least in part on.” The term “one embodiment” means “at least one embodiment.”

[0030] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish the corresponding contents, and are not used to limit the order or interdependence.

[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0032] Figure 1 is a schematic diagram of the structure of a display panel in the related art. Figure 2 yes Figure 1 The enlarged view of the dashed box on the display panel is shown, refer to Figure 1 and Figure 2 , the spliced ​​screen 2' of the related art will use a micro light emitting diode (Micro LED) display panel 1', as shown in the figure, which is formed by splicing four display panels 1', wherein the arrangement of the Micro LED chips 200' in the four display panels 1' is consistent in the plane and edge area. For example, the same pixel unit 20' includes three Micro LED chips 200' of red, green and blue, and each pixel unit 20' is arranged in a periodic P array, and the three Micro LED chips 200' of red, green and blue in each pixel unit 20' are arranged at equal intervals in color order.

[0033] However, due to the above-mentioned fixed arrangement, there is a difference between 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 basic left and right edges. As shown in the figure, D2>D1, the Micro LED chips 200' at the left and right edges are too close to the edge of the substrate, thus forming too narrow left and right frames. In addition, because each display panel needs to be supported and packaged before splicing, the Micro LEDs at the left and right edges will be touched or pressed by the support structure or the packaging structure during support and packaging, resulting in physical interference, resulting in poor welding or even falling off of the Micro LED chips 200' at the left and right edges, etc., causing the Micro LED chips 200' in the left and right edge areas to be dead or defective, affecting the display of the spliced ​​screen.

[0034] In view of the above technical problems, embodiments of the present invention provide a variety of display panels. Figure 3-Figure 5 is a schematic diagram of the structure of three display panels provided by an embodiment of the present invention, referring to Figure 3-Figure 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 parallel to the plane where the array substrate 10 is located. The pixel unit 20 includes at least two light emitting elements 200, and the orthographic projection of the light emitting element 200 on the plane where 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 the 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, a macroscopic display of the entire picture can be achieved based on the visual residual effect of the human eye. The array substrate 10 in the figure is only provided with four rows and four columns of pixel units 20 for illustrative purposes only. The number of pixel units in an actual product can be tens of thousands, and this is not a limitation. Specifically, each pixel unit 20 includes at least two light-emitting elements, and the two light-emitting elements can be set to different colors. By matching the colors of at least two color light-emitting elements, the pixel unit 20 can display the corresponding color. For example, Figure 3-Figure 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, and a rich color display is achieved by matching the three primary colors of red, green, and blue. Of course, those skilled in the art may also select light emitting elements of other numbers and colors to achieve the color matching of the pixel unit 20, such as setting at least two light emitting elements, and adjusting the light emission colors of different light emitting elements by quantum dots of different sizes to achieve a color matching scheme, and the embodiment of the present invention does not limit this. The light emitting element in the embodiment of the present invention is essentially a light emitting chip, such as an LED light emitting chip, including a Micro LED chip, a mini light emitting diode (mini Light emitting diode, mini LED) chip, a nano light emitting diode (nanoLight emitting diode, nano LED) chip, etc. Since the light emitting chip is usually designed as a cubic structure, its projection on the array substrate 10 is usually rectangular, that is, having a long side and a short side. As for the projection on the array substrate 10, since the projection of the light emitting element is rectangular, it can have different setting postures when transferred to the array substrate 10, such as a horizontal posture, that is, the long side is parallel to the row direction, or a vertical posture, that is, the long side is parallel to the column direction.

[0036] Furthermore, the plurality of pixel units 20 arranged along the first direction X include a first pixel unit 21 and a second pixel unit 22, the first pixel unit 21 being 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 being the pixel unit 20 located on the side of the boundary of the first pixel unit 21 away from 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 an adjacent pixel unit 20 is P1, and the distance between the geometric center of any second pixel unit 22 and the geometric center of an 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. Setting P1=P2 means that the first pixel unit 21 and the second pixel unit 22 still meet the effect of array arrangement, and the distances between the geometric centers of adjacent pixel units 20 in the edge area and the non-edge area are consistent, ensuring the display uniformity of the edge area and the non-edge area on a macro scale.

[0038] Furthermore, 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, such as Figure 3 and Figure 5 and / or, the arrangement direction of at least two light-emitting elements including the first light-emitting element 201 in the first pixel unit 21 is not parallel to the first direction X, such as Figure 4 and Figure 5 In the second pixel unit 22 , the long sides of the light emitting elements are parallel to the first direction X, and at least two light emitting elements are arranged along the first direction X.

[0039] For the second pixel unit 22 which is not at the edge, the long sides of the light emitting elements therein are parallel to the first direction X, and the light emitting elements therein are arranged along the first direction X, which means that in at least some of the pixel units 20 in the non-edge area, the light emitting elements are in a horizontal posture and arranged horizontally, and the light emitting elements are arranged in a posture that the pixel unit 20 occupies the maximum length in the first direction X, i.e., the row direction, and occupies the minimum length in the second direction Y, i.e., the column direction.

[0040] For the first pixel unit 21 at the edge, the arrangement of the light emitting elements in the first pixel unit 21 and the second pixel unit 22 is different, including the arrangement posture and the arrangement direction, so as to avoid the problem that the gap between the light emitting element and the edge of the array substrate 10 in the first direction X is too small when the pixel unit 20 occupies the maximum length in the first direction X. 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, and 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 light-emitting elements, and are distinguished by different fillings in the figure. Exemplarily, 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. The embodiment is essentially to adjust the setting posture of the first light-emitting element 201, so that its long side is not parallel to the first direction X, in an inclined posture, i.e., the long side is not parallel to the first direction X, or in a vertical posture, i.e., the long side is parallel to the second direction Y, but not in a horizontal posture, so that the gap between the edgemost first light-emitting element 201 and the edge of the array substrate 10 can be adjusted to avoid the problem that the edgemost pixel unit 20 occupies the maximum length in the row direction when in a horizontal posture and arranged horizontally, resulting in too small a gap.

[0042] like Figure 4 The embodiment shown is essentially to adjust the arrangement direction of the light emitting elements in the first pixel unit 21 at the outermost edge on the basis of keeping the long side of the light emitting element parallel to the first direction X, 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 are arranged in an inclined direction or vertically. 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 of too small gap caused by the pixel unit 20 at the outermost edge occupying the maximum length in the row direction when in a horizontal posture and arranged horizontally.

[0043] like Figure 5 The embodiment shown is essentially to adjust the setting posture 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 posture or a vertical posture rather than a horizontal posture. At the same time, the arrangement direction of the light-emitting elements in the first pixel unit 21 located at the 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 along an inclined direction or a vertical direction. In this way, the gap between the first light-emitting element 201 at the edge and the edge of the array substrate 10 can also be adjusted to avoid the problem of too small a gap caused by the pixel unit 20 at the edge occupying the maximum length in the row direction when in a horizontal posture and arranged horizontally.

[0044] In such Figure 3In the embodiment shown, the adjustment of the setting posture of the first light-emitting element 201 at the edge can be simply understood as a rotation adjustment with its own geometric center as the center of the circle. For the first light-emitting element 201 on the left and the first light-emitting element 201 on the right, opposite rotation directions and the same rotation angle can be adopted, such as Figure 3 For example, the first light emitting elements 201 on both sides are in a symmetrical state after rotation. Of course, the same rotation direction and rotation angle can also be adopted, which is not limited here.

[0045] In such Figure 4 In the embodiment shown, the adjustment of the arrangement direction of the light emitting elements in the first pixel unit 21 at the edge can be simply understood as a rotation adjustment with the geometric center of the pixel unit 20 as the center, and the light emitting elements are kept in a horizontal position during the rotation. Similarly, when the arrangement direction of the light emitting elements in the first pixel unit 21 is rotated, the opposite rotation direction and the same rotation angle can also be used, such as Figure 4 For example, the first pixel units 21 on both sides are in a symmetrical state after rotation. Of course, the same rotation direction and rotation angle may also be adopted, which is not limited here.

[0046] In such Figure 5 In the embodiment shown, the adjustment of the first pixel unit 21 at the edge can be simply understood as a rotation adjustment of the first pixel unit 21 as a whole around the geometric center of the pixel unit, wherein the long side direction and the arrangement direction are consistent. In this embodiment, the selection of the rotation direction and the rotation angle is also not limited, and can be as follows: Figure 5 The example is set up and will not be described in detail.

[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 microscopic structure, changes in their posture and arrangement have little effect on the human eye perception. On a macro level, they can still cooperate with other pixel units to present a complete and uniform picture display effect.

[0048] It is important to understand that Figure 3 and Figure 5In the illustrated embodiment, during the process of rotating the first light-emitting element 201 or the first pixel unit 21, the distance between the edgemost light-emitting element and the edge of the array substrate 10 should strictly be 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, which is considered as the rotation of the diagonal of the rectangle around the center of the rectangle. During the rotation process, the distance D1 between the first light-emitting element 201 and the edge of the array substrate 10 actually gradually decreases first, and reaches the minimum when the rotation is parallel to the diagonal line and the first direction X, and then gradually increases, and reaches the maximum when the rotation is parallel to the short side of 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 in the present application is to avoid the light-emitting element at the edge being affected by the packaging or supporting structure set at the edge, the above-mentioned rotation adjustment scheme, even if there is a problem that the absolute spacing D1 will become smaller, but from an overall perspective, the area of ​​the first light-emitting element 201 close to the edge of the array substrate 10 during the rotation process is actually continuously reduced. According to this understanding, even if the absolute gap D1 of the rotated first light-emitting element 201 is reduced, it can still avoid the influence of the packaging structure or supporting structure set at the edge to a certain extent.

[0049] Furthermore, I would like to add that Figure 3-Figure 5 In the embodiment shown, due to the adjustment of the arrangement of the first light emitting element 201 or the first pixel unit 21, the spacing D2 between the light emitting element and the edge of the array substrate 10 in the second direction Y is sacrificed to increase the spacing D1 between the light emitting element and the edge of the array substrate 10 in the first direction X. Therefore, when adjusting the first light emitting element 201 and the first pixel unit 21, the spacing D2 between the light emitting element and the edge of the array substrate 10 in the second direction Y also needs to be considered to balance the sizes of the borders in the two directions. Figure 5 In the illustrated embodiment, by way of example, the light emitting elements in the first pixel unit 21 may be arranged in a direction that is at an angle of 45° to the first direction X, and the light emitting elements are also tilted in this direction. At this time, D1=D2, and the sizes of the borders in the first direction X and the second direction Y may be balanced, thereby avoiding the problem that the border on one side is too small and easily affected by the packaging structure or the supporting structure.

[0050] The above technical solution, by setting the long side of the first light-emitting element at the edge to be non-parallel to the first direction in the first pixel unit at the edge, 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 area 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 being too close to the edge of the array substrate, causing the light-emitting element to be interfered by the packaging structure or the supporting structure, resulting in poor welding or even falling 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.

[0051] Continue to refer Figure 3-Figure 5 In the embodiment of the present invention, 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 the light-emitting element in any 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, where L1≤L2.

[0052] Specifically, Figure 3-Figure 5 For example, the first light-emitting element 201 on the left edge 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. 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, the red light-emitting element 2001 is also taken as an example. The light-emitting element of the same color in the adjacent pixel unit 20 is also a red light-emitting element 2001. The distance between the geometric centers of the two red light-emitting elements 2001 is L2. Therefore, in Figure 3 In the embodiment shown, L1=L2, which means that although the center position of the first light emitting element 201 does not change, the adjustment of its setting posture, for example, when the horizontal posture is changed to an inclined posture or even a vertical posture, the distance between the first light emitting element 201 and the edge of the array substrate 10 can be adjusted to a certain extent to avoid being too close to the edge and being interfered by the packaging structure or the supporting structure. Figure 4 and Figure 5 In the illustrated embodiment, L1<L2, which means that by rotating the first pixel unit 21, the position of the first light-emitting element 201 can be significantly adjusted to move the center of the display panel, that is, the first light-emitting element 201 can be adjusted away from the edge of the array substrate to avoid being too close to the edge and being interfered by the packaging structure or the supporting structure.

[0053] More specifically, Figure 6 and Figure 7is a schematic diagram of the structure of two other display panels provided by an embodiment of the present invention, referring to Figure 3 , Figure 6 and Figure 7 In some embodiments of the present invention, optionally, the long side of the first light emitting element 201 is not parallel to the first direction X, and at least two light emitting elements in the first pixel unit 21 are arranged along the first direction X. In these embodiments, on the basis of rotating the setting posture of the first light emitting element 201, the light emitting elements in the first pixel unit 21 and the light emitting elements in the second pixel unit 22 are arranged in the same direction.

[0054] Continue to refer Figure 6 and Figure 7 , compared to Figure 3 In the illustrated embodiment, optionally, the long side of the first light emitting element 201 may 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. On the basis of the unchanged geometric center position, 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, reaching the minimum. The distance between the first light emitting element 201 and the edge of the array substrate 10 is maximized, effectively increasing the space of the frame in the row direction, and avoiding the problem of the light emitting element in the row direction being too close to the edge of the array substrate 10. Figure 7 As shown, for the light-emitting elements other than the first light-emitting element 201 in the first pixel unit 21, their setting postures can also be adjusted synchronously. For example, the green light-emitting element 2002 and the blue light-emitting element 2003 are rotated around their own geometric centers to be in a vertical posture. This embodiment can avoid affecting the overall field of view distribution of the pixel unit when changing the setting posture of a single light-emitting element, resulting in obvious differences in the light-emitting effects of the first pixel unit 21 and the second pixel unit 22. By synchronously adjusting the setting postures of the light-emitting elements other than the first light-emitting element 201 in the first pixel unit 21, the light output of the light-emitting elements in the first pixel unit 21 can be balanced, the difference in field of view distribution between the first pixel unit 21 and the second pixel unit 22 can be reduced, and the uniformity of the display image can be avoided from being affected at a macro level.

[0056] Figure 8 and Fig. 9 is a schematic diagram of the structure of two display panels provided by the embodiments of the present invention, referring to Figure 8 and Fig. 9 , compared to Figure 4 and Figure 5 In some other embodiments of the present invention, the arrangement direction of at least two light emitting elements in the first pixel unit 21 may be set to be parallel to the second direction Y. Figure 8 Optionally, the long side of the first light emitting element 201 is parallel to the first direction X, or, continue to refer to Fig. 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 elements in the first pixel unit 21 to be parallel to the second direction Y, the arrangement direction of the light emitting elements 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 first light emitting element 201 will be too close to the edge of the array substrate 10. Changing the arrangement direction of the light emitting elements will cause the first light emitting element 201 to move inward in the row direction, thereby increasing the distance between the first light emitting element 201 and the edge of the array substrate 10, thereby avoiding interference from the packaging structure or the supporting structure due to being too close 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 arrangement postures of the light emitting elements are the same, the distance between the light emitting elements 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 substantially be the first light emitting element 201.

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

[0059] In which, taking the first light-emitting element 201 as a red light-emitting element 2001 as an example, the second light-emitting element 202 may 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 set to be parallel to the first direction X or the second direction Y, indicating that the second light-emitting element 202 may be set to be in a horizontal posture or a vertical posture. Since the second light-emitting element 202 does not affect the distance from the edge of the array substrate 10 in the row direction, in some embodiments, it may be considered to cooperate with the adjusted first light-emitting element 201 to balance the light output of the light-emitting elements in the first pixel unit 21, reduce the difference in the field of view distribution between the first pixel unit 21 and the second pixel unit 22, and ensure the uniformity of the display image in the macroscopic sense.

[0060] Of course, when the first pixel unit 21 includes more than two light-emitting elements, that is, the first pixel unit 21 may also include a third light-emitting element 203, thus, a second light-emitting element 202 and a third light-emitting element 203 may be further set, that is, other light-emitting elements except the first light-emitting element 201 may adopt the same setting posture, that is, their long sides are set to be parallel to the first direction X or the second direction Y.

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

[0062] by Figure 7 and Figure 8 Taking the embodiment shown as an example, the arrangement direction of the light emitting elements in the second pixel unit 22 is parallel to the extension direction of the long side, and the gap between the light emitting elements is the smallest, which is S2. However, 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, the gap between the light emitting elements in the first pixel unit 21 is increased and reaches the maximum. In these embodiments, the gap S1 between the light emitting elements in the first pixel unit 21 is significantly larger than the gap S2 between the light emitting elements in the second pixel unit 22.

[0063] by Figure 5 Taking the illustrated embodiment as an example, in the first pixel unit 21 and the second pixel unit 22, the arrangement direction of the light emitting elements is parallel to the extension direction of the long sides, and the spacing between the light emitting elements is the smallest, that is, S1=S2.

[0064] Furthermore, for Figure 7 and Figure 8 The present invention also provides other preferred embodiments. Fig.10 and Fig.11 is a schematic diagram of the structure of two display panels provided by the embodiments of the present invention, referring to Fig.10 and Fig.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 be equal to the gap between the light emitting elements in the second pixel unit 22 while keeping the geometric center position of the first pixel unit 21 unchanged, that is, S1=S2. Fig.10In the embodiment shown, the red light emitting elements 2001 and the green light emitting elements 2002 on the left and right sides can be moved toward the middle green light emitting element 2002 while the position of the middle green light emitting element 2002 remains unchanged, until the spacing S1=S2. At this 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 to the side away from the edge of the array substrate 10, thereby solving the problem that the edgemost light emitting element in the row direction is too close to the edge of the array substrate 10. Similarly, Fig.11 In the illustrated embodiment, the red light emitting elements 2001 and the green light emitting elements 2002 on the upper and lower sides can be moved toward the middle green light emitting element 2002 on the basis of keeping the position of the middle green light emitting element 2002 unchanged, until the spacing S1=S2. At this 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 to the side away from the edge of the array substrate 10, while ensuring that the light emitting elements increase the distance from the edge of the array substrate 10 in the row direction, while avoiding the edgemost light emitting element in the column direction from being too close to the edge of the array substrate 10.

[0065] As 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 distance between the light-emitting element and the edge of the array substrate in the row direction, but also affect the distance 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 invention also provides a corresponding implementation method.

[0066] Fig.12 is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, referring to Fig.12 Optionally, the arrangement direction of 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. Optionally, the long side of the first light emitting element 201 is parallel to the arrangement direction of 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 elements, it means that the first pixel unit 21 will occupy the largest length in the arrangement direction 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 to the first direction X or the second direction Y, the distance between the light emitting elements and the edge of the array substrate 10 in the first direction X or the second direction Y will be too small. Therefore, in this embodiment, the arrangement direction of the light emitting elements in the first pixel unit 21 is set to be non-parallel to both the first direction X and the second direction Y, that is, an oblique arrangement, which can balance the spacing between the light emitting elements and the edge of the array substrate 10 in the row direction and the column direction, and avoid the problem of too small spacing on either side.

[0068] It should be added that Fig.12 In the figure, the arrangement direction of the first pixel units 21 located at the four corner positions is set to 45°, and the four first pixel units 21 are axially symmetrical and centrally symmetrical. This is only an example of the present invention, and those skilled in the art can make reasonable selections and settings without making too many restrictions here.

[0069] Fig.13 and Fig.14 is a schematic diagram of the structure of two display panels provided by the embodiments of the present invention, referring to Fig.13 and Fig.14 , the present invention also provides a variety of configuration methods for the first pixel unit 21 at the corner position. Specifically, the first pixel unit 21 also 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 smaller 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 along the first direction X, that is, Fig.13 Alternatively, 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 along the first direction X, that is, as shown Fig.14 shown.

[0070] like Fig.13 and Fig.14 As shown, for the first pixel unit 21 at the corner position, in the embodiment of the present invention, two light-emitting elements therein, namely 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 a certain extent, and the distance between the light-emitting elements and the edge of the array substrate 10 in the row direction and the column direction can be balanced.

[0071] It should be noted that after controlling the rotation of the first light-emitting element 201 and the second light-emitting element 202, taking into account 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 its geometric center 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] Fig.15 and Fig.16 is a schematic diagram of the structure of two display panels provided by the embodiments of the present invention, referring to Fig.15 and Fig.16 Furthermore, the first light emitting element 201 and the second light emitting element 202 may be arranged along the second direction Y.

[0073] In addition, optionally, 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] like Fig.15 and Fig.16 In the embodiment shown, a specific light emitting element layout is also used, that is, 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, so that the first light emitting element 201 is far away from the edge of the array substrate 10 in the row direction, and at the same time, the second light emitting element 202 is prevented from being too close to the edge of the array substrate 10 in the column direction, so as to achieve 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. In addition, compared with Fig.13 and Fig.14 ,like Fig.15 and Fig.16 In the illustrated embodiment, the first light emitting element 201 and the second light emitting element 202 are arranged along the second direction Y, and 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 can be reduced as much as possible from the angle of the arrangement of the light emitting elements. On this basis, since the arrangement posture of the light emitting elements, especially the first light emitting element 201 and the second light emitting element 202, also affects the distance between them and the edge of the array substrate 10 in the row direction to a certain extent, in an optional embodiment of the present invention, the arrangement posture of the first light emitting element 201 and the second light emitting element 202, for example, 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. For example, in Fig.15 and Fig.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 light emitting element setting posture, the distance between each light emitting element and the edge of the array substrate 10 in the row direction can be minimized as much as possible. For the third light emitting element 203, those skilled in the art can freely set it, for example, it can be set to have a long side parallel to the first direction X or parallel to the second direction Y, and there is no limitation 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 two light emitting elements are arranged in the same posture, the two light emitting elements are at the same distance from the edge of the array substrate 10 in the first direction X, i.e., the row direction, 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 closest to the edge of the array substrate 10 in the first direction X, i.e., the row direction in the second pixel unit 22. 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] Continue to refer Figure 13-Figure 16 Optionally, at least two first pixel units 21 at different positions in the second direction Y have different arrangement modes and / or setting postures.

[0077] Specifically, Figure 13-Figure 16 The embodiment shown is mainly for the setting mode of the first pixel unit 21 located at the corner position. It can be understood that for the first pixel unit 21 at the non-corner position, it can be designed in a way to minimize the distance between the light-emitting element and the edge of the array substrate 10 in the row direction, that is, for the first pixel unit 21 located at the corner position and the non-corner position, different arrangement modes and / or setting postures can be used to set the light-emitting elements therein. As an example in the figure, in the first pixel unit 21 at the non-corner position, the light-emitting elements therein are arranged in the second direction Y, and the long side is also parallel to the second direction Y. At this time, the width occupied by the first pixel unit 21 in the first direction X, that is, the row direction, is the smallest, which is the length of the short side of the light-emitting element, and is farthest from the edge of the array substrate 10 in the row direction.

[0078] Fig.17is a schematic diagram of the structure of another display panel provided by an embodiment of the present invention, referring to Fig.17 Optionally, the multiple pixel units 20 arranged along the first direction X also include a third pixel unit 23, and the third pixel unit 23 is located in the pixel unit 20 on the side of the boundary of the first pixel unit 21 away from 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 present embodiment, a 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, which means that in the display panel, not only the pixel units 20 located at the edge, i.e., the first pixel unit 21 and the second pixel unit 22, have the light emitting element arrangement mode and / or setting posture differentiated, but the pixel units 20 at other positions can also have the light emitting element arrangement mode and setting posture differentiated from 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, reducing the influence on the uniformity of the display image when only the pixel units 20 at the outermost edge change the light emitting element arrangement mode and setting posture, thereby improving the uniformity of the display image and the image display quality.

[0080] like Fig.17 As shown, the pixel units 20 in the most edge column and the pixel units 20 in the secondary edge column in the row direction can be adjusted in terms of the arrangement mode and setting posture of the light emitting elements compared with the pixel units 20 in the middle area, thereby making it possible to transition different pixel units 20 from the edge to the center area, thereby improving the uniformity of the displayed image. Of course, setting the pixel units 20 in the secondary edge column as the third pixel unit 23 is only an example of the present invention. Optionally, more than one column of pixel units 20 adjacent to the first pixel unit 21 can be set as the third pixel unit 23. In addition, in the embodiment of the present invention, the pixel units 20 in other areas can also be set as the third pixel unit 23. For example, the pixel units 20 in each alternate column can be set as the third pixel unit 23, and a column of second pixel units 22 can be set between two columns of third pixel units 23, thereby balancing the light output of the pixel units 20 with different light emitting element arrangement modes and setting postures as much as possible, thereby improving the uniformity of the entire image and improving the image display quality.

[0081] Based on the same inventive concept, an embodiment of the present invention further provides a spliced ​​screen. Fig.18 A schematic diagram of a spliced ​​screen provided by an embodiment of the present invention, such as Fig.18 As shown, the spliced ​​screen 2 includes at least two display panels 1, and the display panel 1 is one provided by any embodiment of the present invention. Fig.18The spliced ​​screen 2 includes four display panels 1 of 2*2 for illustration. The structure of the display panel 1 has been described in the above embodiment and will not be repeated here. The spliced ​​screen 2 provided in the embodiment of the present invention can be used for large-screen display, such as in conference rooms, exhibition halls, billboards, TV walls and other occasions.

[0082] Based on the same inventive concept, an embodiment of the present invention further provides a display device, the display device comprising a display panel provided by any embodiment of the present invention. In one embodiment, the display device comprises a display panel. In another embodiment, the display device comprises a spliced ​​screen formed by splicing at least two display panels.

[0083] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: An array substrate; A plurality of 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 parallel to the plane where the array substrate is located; The pixel unit comprises at least two light emitting elements, and the orthographic projection of the light emitting elements on the plane where the array substrate is located 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 being a pixel unit closest to a boundary of the array substrate among the plurality of pixel units arranged along the first direction, and the second pixel unit being a pixel unit located on a side of the first pixel unit away from a 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 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, 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 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; 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 the light-emitting element in any 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: An 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: A long side of the first light emitting element is parallel to 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, and the first light emitting element and the second light emitting element have different colors; A 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 of the gaps between the light emitting elements in the first pixel unit is S1, and the distance of the gaps 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: An arrangement direction of the at least two light emitting elements in the first pixel unit is not parallel to the first direction and the second direction.

10. The display panel according to claim 9, characterized in that: A long side of the first light emitting element is parallel to an 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 and the arrangement direction is 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 smaller 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, a 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 modes and / or setting postures.

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

16. A spliced ​​screen, characterized in that: The display device comprises at least two display panels according to any one of claims 1 to 15.

17. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-15.

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