A display panel and display device

Abstract

This application discloses a display panel and a display device, relating to the field of display technology. The display panel includes: multiple sub-panels, which are spliced ​​together, with a splicing seam formed between adjacent sub-panels; each sub-panel includes a substrate and light-emitting elements disposed on one side of the substrate. The light-emitting elements include near-seam light-emitting elements, which are close to the splicing seam. The near-seam light-emitting elements include a first light-emitting element closest to the splicing seam and a second light-emitting element located on the side of the first light-emitting element away from the splicing seam and adjacent to the first light-emitting element. The angle between the main light-emitting surface of the first light-emitting element and the plane of the substrate is α, and the angle between the main light-emitting surface of the second light-emitting element and the plane of the substrate is β; wherein, 0° < β < α < 90°. Thus, the light in the display panel gradually transitions from the splicing seam to the near-seam light-emitting element, and then from the near-seam light-emitting element to the light-emitting element in the middle of the sub-panel, improving the display effect of the display panel.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] With the development of display device technology, the demand for various ultra-large display devices is increasing day by day. The common method is to use multiple independent splicing units to physically splice them together to form an ultra-large splicing display device.

[0003] However, when two or more splicing units are spliced ​​together, there will be gaps at the splicing points. In addition, the distance between the edge of the visible area of ​​the display device and the edge of the display device will make the entire spliced ​​image appear segmented. The entire spliced ​​image is not visually continuous, which seriously affects the overall display effect of the spliced ​​display. Summary of the Invention

[0004] In view of this, the present invention provides a display panel and a display device, which aims to solve the problem of the splicing seams of existing display panels dividing the display screen and to achieve a seamless display effect.

[0005] In a first aspect, the present invention provides a display panel, comprising:

[0006] Multiple sub-panels are spliced ​​together with each other, and a splicing seam is formed between two adjacent sub-panels;

[0007] The sub-panel includes a substrate and a light-emitting element disposed on one side of the substrate. The light-emitting element includes a near-slit light-emitting element that is close to the splicing seam. The light-emitting surface of the near-slit light-emitting element includes a main light-emitting surface and a side light-emitting surface. The side light-emitting surface at least partially surrounds the main light-emitting surface.

[0008] The near-seam light-emitting element includes a first light-emitting element closest to the splicing seam and a second light-emitting element located on the side of the first light-emitting element away from the splicing seam and adjacent to the first light-emitting element. The angle between the main light-emitting surface of the first light-emitting element and the plane of the substrate is α, and the angle between the main light-emitting surface of the second light-emitting element and the plane of the substrate is β; wherein, 0° < β < α < 90°.

[0009] In a second aspect, the present invention provides a display device including the display panel provided in the first aspect of the present invention.

[0010] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0011] The near-seam light-emitting element includes an adjacent first light-emitting element and a second light-emitting element. The first light-emitting element is closest to the splicing seam. The angle between the main light-emitting surface of the first light-emitting element and the plane of the substrate is α, and the angle between the main light-emitting surface of the second light-emitting element and the plane of the substrate is β. Both α and β are acute angles. The main light-emitting surfaces of both the first and second light-emitting elements are inclined towards the splicing seam. The light emitted by the main light-emitting surfaces of the first and second light-emitting elements can be focused towards the splicing seam, improving the situation of shadows formed due to insufficient light at the splicing seam, weakening the existence of the splicing seam, and improving the display effect. Furthermore, a portion of the light emitted from the main light-emitting surface of the second light-emitting element can compensate for the reduced light between the first and second light-emitting elements. Also, because the tilt angle β of the second light-emitting element is smaller, the amount of light reduction on the side of the second light-emitting element away from the splicing seam is also smaller. The difference in light brightness between the first and second light-emitting elements, as well as between the second light-emitting element and the light-emitting element in the middle of the sub-display panel, is reduced. Thus, in the display panel, the light gradually transitions from the splicing seam to the near-seam light-emitting element, and then from the near-seam light-emitting element to the light-emitting element in the middle of the sub-display panel, improving the display effect of the display panel.

[0012] Of course, any product implementing this invention need not necessarily achieve all of the technical effects described above at the same time.

[0013] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0015] Figure 1 The figure shown is a top view of a display panel provided in an embodiment of the present invention;

[0016] Figure 2 The image shown is a schematic diagram of a pixel arrangement of a sub-panel provided in an embodiment of the present invention;

[0017] Figure 3 The image shown is a schematic diagram of light rays at the seam of a display panel in the prior art;

[0018] Figure 4 The image shown is a schematic diagram of the light rays emitted by the first light-emitting element;

[0019] Figure 5 The image shown is a schematic diagram of the light rays at the seam in the display panel provided in an embodiment of the present invention;

[0020] Figure 6The image shown is another schematic diagram of the light at the splicing seam in the display panel provided in an embodiment of the present invention;

[0021] Figure 7 The following is an embodiment of the present invention. Figure 2 A schematic diagram of a near-angle light-emitting element;

[0022] Figure 8 The figure shown is a schematic diagram of the cross-sectional structure of the near-angle light-emitting element along the first direction provided in an embodiment of the present invention;

[0023] Figure 9 The figure shown is a schematic diagram of the cross-sectional structure of the near-angle light-emitting element along the second direction provided in an embodiment of the present invention;

[0024] Figure 10 The diagram shown is a structural schematic of the display device provided in an embodiment of the present invention. Detailed Implementation

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0028] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0029] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0031] Figure 1The figure shown is a top view of a display panel provided in an embodiment of the present invention. Figure 2 The diagram shown is a pixel arrangement schematic of a sub-panel provided in an embodiment of the present invention. Figure 3 The diagram shown illustrates the light rays at the seam of a display panel in the prior art. Figure 4 The image shown is a schematic diagram of the light rays from the first light-emitting element. Figure 5 The diagram shown illustrates the light rays at the seam of the display panel provided in an embodiment of the present invention. Please refer to... Figures 1 to 5 This invention provides a display panel comprising: a plurality of sub-panels 110, which are spliced ​​together, with a splicing seam 120 formed between adjacent sub-panels 110; each sub-panel 110 includes a substrate 10 and light-emitting elements disposed on one side of the substrate 10, the light-emitting elements including a near-seam light-emitting element 20, the near-seam light-emitting element 20 being close to the splicing seam 120, the light-emitting surface of the near-seam light-emitting element 20 including a main light-emitting surface and a side light-emitting surface, the side light-emitting surface at least partially surrounding the main light-emitting surface; the near-seam light-emitting element 20 includes a first light-emitting element 21 closest to the splicing seam 120 and a second light-emitting element 22 located on the side of the first light-emitting element 21 away from the splicing seam 120 and adjacent to the first light-emitting element 21, the angle between the main light-emitting surface of the first light-emitting element 21 and the plane of the substrate 10 being α, and the angle between the main light-emitting surface of the second light-emitting element 22 and the plane of the substrate 10 being β; wherein, 0° < β < α < 90°.

[0032] It should be noted that the reference Figure 4 Because there are two angles between the main light-emitting surface of the light-emitting element and the plane where the substrate 10 is located, namely Figure 4 In this embodiment, the angle between the main light-emitting surface of the light-emitting element and the plane where the substrate 10 is located refers to the angle θ between the main light-emitting surface of the light-emitting element and the projection of the main light-emitting surface onto the plane where the substrate 10 is located.

[0033] It should be understood that the near-seam light-emitting element 20 is the light-emitting element located close to the splicing seam 120. Specifically, refer to... Figure 2 In this embodiment, there are splicing seams 120 between the sub-display panels and adjacent sub-display panels on all four sides. Regions W1, W2, W3 and W4 are all close to the splicing seams 120. The light-emitting elements in regions W1, W2, W3 and W4 are the near-seam light-emitting elements 20.

[0034] In this embodiment, the near-seam light-emitting element 20 includes an adjacent first light-emitting element 21 and a second light-emitting element 22. The first light-emitting element 21 is closest to the splicing seam 120. The angle between the main light-emitting surface of the first light-emitting element 21 and the plane of the substrate 10 is α, and the angle between the main light-emitting surface of the second light-emitting element 22 and the plane of the substrate 10 is β, where 0° < β < α < 90°. Therefore, referring to... Figure 5 The main light-emitting surfaces of the first light-emitting element 21 and the second light-emitting element 22 are both inclined toward the corresponding splicing seam 120. The light emitted from the main light-emitting surfaces of the first light-emitting element 21 and the second light-emitting element 22 can be concentrated toward the splicing seam 120, improving the situation of shadows formed at the splicing seam 120 due to insufficient light, weakening the existence of the splicing seam 120, and improving the display effect.

[0035] Furthermore, because some of the light from the main light-emitting surface of the first light-emitting element 21 is concentrated at the splice seam 120, the light emitted from the main light-emitting surface of the first light-emitting element 21 on the side closer to the second light-emitting element 22 will be reduced (see reference). Figure 4 In this embodiment, the angle between the main light-emitting surface of the second light-emitting element 22 and the plane where the substrate 10 is located is β, which is also an acute angle, and α > β. That is, the main light-emitting surface of the second light-emitting element 22 is also inclined towards the splicing seam 120, and its inclination is less than that of the main light-emitting surface of the first light-emitting element 21. Thus, on the one hand, a portion of the light emitted by the main light-emitting surface of the second light-emitting element 22 can compensate for the reduced light between the first light-emitting element 21 and the second light-emitting element 22. On the other hand, because the tilt angle β of the second light-emitting element 22 is small, the amount of light reduction on the side of the second light-emitting element 22 away from the splicing seam 120 is also small. The light brightness between the first light-emitting element 21 and the second light-emitting element 22, as well as the light brightness difference between the second light-emitting element 22 and the light-emitting element in the middle of the sub-display panel, is reduced. Thus, in the display panel, from the splicing seam 120 to the display area where the near-seam light-emitting element 20 is located, and then from the display area where the near-seam light-emitting element 20 is located to the middle of the sub-display panel 110, the light of the display panel gradually transitions, improving the display effect of the display panel.

[0036] Figure 6 The image shown is another schematic diagram of the light at the seam in the display panel provided in an embodiment of the present invention. (Reference) Figure 6 In some embodiments, the near-seam light-emitting element 20 further includes at least one light-emitting element disposed on the side of the second light-emitting element 22 away from the splice seam 120;

[0037] Along the direction away from the splicing seam 120, the angle between the main light-emitting surface of all light-emitting elements of the near-slit light-emitting element 120 and the plane where the substrate 10 is located tends to decrease.

[0038] refer to Figure 6The near-seam light-emitting element 20 includes a first light-emitting element 21, a second light-emitting element 22, and a third light-emitting element 23 arranged sequentially adjacent to each other along the direction away from the splicing seam 120. The tilt angle of the main light-emitting surface of the third light-emitting element 23 is γ, and 0° > α > β > γ > 90°. A portion of the light emitted from the main light-emitting surface of the second light-emitting element 22 can compensate for the reduced light on the left side of the first light-emitting element 21 (between the first light-emitting element 21 and the second light-emitting element 22). A portion of the light emitted from the main light-emitting surface of the third light-emitting element 23 can compensate for the reduced light on the left side of the second light-emitting element 22 (between the second light-emitting element 22 and the third light-emitting element 23). Thus, in the display panel, from the splicing seam 120 to the display area where the near-seam light-emitting element 20 is located, and then from the display area where the near-seam light-emitting element 20 is located to the middle of the sub-panel 110, the light of the display panel gradually transitions and the transition is smoother, which can further improve the display effect of the display panel.

[0039] refer to Figure 2 and Figure 6 In some embodiments, the near-slit light-emitting elements 20 are all light-emitting elements of the same color, and along the direction away from the splicing seam 120, the angle between the main light-emitting surface of all the light-emitting elements of the near-slit light-emitting elements 20 and the plane where the substrate 10 is located is an arithmetic sequence value.

[0040] Continue to refer to Figure 6 In one embodiment, the tilt angle α of the main light-emitting surface of the first light-emitting element 21 is 45°, the tilt angle β of the main light-emitting surface of the second light-emitting element 22 is 30°, and the tilt angle γ of the main light-emitting surface of the third light-emitting element 23 is 10°. A portion of the light emitted from the main light-emitting surface of the second light-emitting element 22 can compensate for the reduced light on the left side of the first light-emitting element 21 (between the first light-emitting element 21 and the second light-emitting element 22), and the compensation amount is denoted as Δ(α-β=15°). A portion of the light emitted from the main light-emitting surface of the third light-emitting element 23 can compensate for the reduced light on the left side of the second light-emitting element 22 (between the second light-emitting element 22 and the third light-emitting element 23), and the compensation amount is denoted as Δ(β-γ=20°).

[0041] refer to Figure 6 Another implementation method is provided, which is similar to... Figure 6The embodiments shown are basically the same, except that the tilt angle α of the main light-emitting surface of the first light-emitting element 21 is 45°, the tilt angle β of the main light-emitting surface of the second light-emitting element 22 is 30°, and the tilt angle γ = 15° of the main light-emitting surface of the third light-emitting element 23. A portion of the light emitted from the main light-emitting surface of the second light-emitting element 22 can compensate for the reduced light on the left side of the first light-emitting element 21 (between the first and second light-emitting elements 22), and the compensation amount is denoted as Δ(α-β = 15°). Similarly, a portion of the light emitted from the main light-emitting surface of the third light-emitting element 23 can compensate for the reduced light on the left side of the second light-emitting element 22 (between the second and third light-emitting elements 23), and the compensation amount is denoted as Δ(β-γ = 15°). Compared to... Figure 6 In this embodiment, △(α-β=15°) and △(β-γ=15°) are equal, and the light compensation amount is the compensation amount corresponding to an angle difference of 15°. In the near-slit light-emitting element 20, along the direction away from the splicing seam 120, the angle between the main light-emitting surface of all light-emitting elements and the plane where the substrate 10 is located is an arithmetic sequence value. In this way, the light brightness between the light-emitting elements in the near-slit light-emitting element 20 is comparable, uniform and consistent. From the splicing seam 120 to the display area where the near-slit light-emitting element 20 is located, and then from the display area where the near-slit light-emitting element 20 is located to the middle of the sub-panel 110, the light transition of the display panel is more natural, which can further improve the display effect of the display panel.

[0042] In some embodiments, the near-seam light-emitting element 20 includes a first color light element and a second color light element. Along the direction away from the splice seam 120, the angles between the main light-emitting surfaces of the first color light element of the first light-emitting element 21, the first color light element of the second light-emitting element 22, and the first color light element of the third light-emitting element 23 and the plane where the substrate 10 is located are arithmetic progression values. The angles between the main light-emitting surfaces of the second color light element of the first light-emitting element 21, the second color light element of the second light-emitting element 22, and the second color light element of the third light-emitting element 23 and the plane where the substrate 10 is located are arithmetic progression values.

[0043] For example, the first color light element is a green light-emitting element, the second color light element is a red light-emitting element, the angle between the green light-emitting element of the first light-emitting element 21 and the plane of the substrate 10 is Y1, the angle between the green light-emitting element of the second light-emitting element 22 and the plane of the substrate 10 is Y2, and the angle between the green light-emitting element of the third light-emitting element 23 and the plane of the substrate 10 is Y3, then Y1-Y2=Y2-Y3; similarly, the angle between the red light-emitting element of the first light-emitting element 21 and the plane of the substrate 10 is G1, the angle between the red light-emitting element of the second light-emitting element 22 and the plane of the substrate 10 is G2, and the angle between the red light-emitting element of the third light-emitting element 23 and the plane of the substrate 10 is G2, then G1-G2=G2-G2.

[0044] refer to Figure 5 In some embodiments, the emission wavelength of the first color light element is greater than that of the second color light element. The angle between the main emission surface of the first color light element and the plane of the substrate is W, and the angle between the main emission surface of the second sub-light-emitting element and the plane of the substrate is V, wherein 0° < V < W < 90°

[0045] refer to Figure 5 In this embodiment, the first color light element and the second color light element are light-emitting elements that emit different colors of light. The first color light element emits red light, and the second color light element emits blue or green light. When the main light-emitting surfaces of the first and second color light elements are tilted at the same angle, because the wavelengths of blue and green light are shorter than the wavelength of red light, the tilt of the main light-emitting surface of the first color light element emitting red light results in less light converging at the seam 120, and the area of ​​the converged light at the seam 120 is also smaller. In this embodiment, the tilt angle of the first color light element is greater than that of the second color light element. Thus, the light converged at the seam 120 by the second color light element is essentially the same as the light converged at the seam 120 by the first color light element, and the projected area of ​​the light converged at the seam 120 is also essentially the same, improving the weakening effect of the seam 120 and further enhancing the display effect.

[0046] Continue to refer to Figure 5 In some embodiments, the near-slit light-emitting element 20 further includes a third color light element, the light emission wavelength of the third color light element is less than the light emission wavelength of the second color light element, and the angle between the main light emission surface of the third color light element and the plane of the substrate is U, wherein 0° < U < V < 90°.

[0047] For example, the first color light element emits red light, the second color light element emits blue light, and the third color light element emits green light. The wavelength of red light is longer than that of blue light, and the wavelength of blue light is longer than that of green light. The longer the wavelength, the lower the luminous efficiency. In this embodiment, the tilt angle of the third color light element is smaller than that of the second color light element, and the tilt angle of the second color light element is smaller than that of the first color light element. The light rays that the second color light element focuses on the splicing seam 120, the light rays that the third color light element focuses on the splicing seam 120, and the light rays that the first color light element focuses on the splicing seam 120 can remain basically consistent, thereby improving the weakening effect of the splicing seam 120 and further improving the display effect.

[0048] Figure 7 The following is an embodiment of the present invention. Figure 2 A schematic diagram of a near-angle light-emitting element. (Reference) Figure 7 In some embodiments, the splicing seam 120 includes a first seam 121 extending along a first direction D1 and a second seam 122 extending along a second direction D2. The first seam 121 and the second seam 122 intersect each other, and both the first direction D1 and the second direction D2 are perpendicular to the thickness direction of the display panel.

[0049] The first light-emitting element 21 also includes a near-angle light-emitting element 24, which is close to the first joint 121 and close to the second joint 122;

[0050] Along the direction from the near-angle light-emitting element 24 to the first joint 121, the height of the main light-emitting surface of the near-angle light-emitting element 24 tends to decrease; along the direction from the near-angle light-emitting element 24 to the second joint 122, the height of the main light-emitting surface of the near-angle light-emitting element 24 tends to decrease.

[0051] refer to Figure 2 and Figure 7 Taking a rectangular sub-display panel as an example, the sub-display panel has a first seam 121 extending along the first direction D1 between itself and the adjacent sub-display panels on the left and right, and a second seam 122 extending along the second direction D2 between itself and the adjacent sub-display panels on the top and bottom. The first seam 121 and the second seam 122 intersect and the intersection forms a cross shape. Figure 7(Location of region C3); Part of the light emitted from the main light-emitting surface of the near-slit light-emitting element 20 near the first seam 121 will converge to region C1 in the first seam 121, and part of the light emitted from the main light-emitting surface of the near-slit light-emitting element 20 near the second seam 122 will converge to region C2 in the second seam 122. The near-corner light-emitting elements 24 at the four corners of the sub-display panel are located in regions Q1, Q2, Q3 and Q4. The near-corner light-emitting elements 24 are close to both the first seam 121 and the second seam 122. In this embodiment, light is emitted along the near-corner. The height of the main light-emitting surface of the near-angle light-emitting element 24 decreases as it points towards the first seam 121. Similarly, the height of the main light-emitting surface of the near-angle light-emitting element 24 decreases as it points towards the second seam 122. This means that the main light-emitting surface of the near-angle light-emitting element 24 is inclined both towards the first seam 121 and towards the second seam 122. In this way, the light emitted from the main light-emitting surface of the near-angle light-emitting element 24 can cover the area at the intersection of the first seam 121 and the second seam 122, thereby further improving the display effect of the display panel.

[0052] Figure 8 The figure shown is a schematic diagram of the cross-sectional structure of the near-angle light-emitting element along the first direction provided in an embodiment of the present invention. Figure 9 The diagram shown is a schematic cross-sectional view of the near-angle light-emitting element along the second direction provided in an embodiment of the present invention. (Refer to...) Figures 7 to 9 In some embodiments, the height difference of the main light-emitting surface of the near-angle light-emitting element 24 is H1 along the direction from the near-angle light-emitting element 24 to the first seam 121; and the height difference of the main light-emitting surface of the near-angle light-emitting element 24 is H2 along the direction from the near-angle light-emitting element 24 to the second seam 122.

[0053] The distance between the near-angle light-emitting element 24 and the first joint 121 is M1, and the distance between the near-angle light-emitting element 24 and the second joint 122 is M2, wherein M2 / M1=H1 / H2.

[0054] It is important to understand that reference Figure 8 and Figure 9Taking the near-angle light-emitting element 24 located at the upper left corner of the sub-display panel as an example, the tilt angle of the main light-emitting surface of the near-angle light-emitting element 24 will be explained. The near-angle light-emitting element 24 at the upper left corner is denoted as the first near-angle light-emitting element. The first near-angle light-emitting element is close to both the upper and lower seams. Along the direction from the near-angle light-emitting element 24 to the first seam 121, the height difference of the main light-emitting surface of the near-angle light-emitting element 24 is H1; along the direction from the near-angle light-emitting element 24 to the second seam 122, the height difference of the main light-emitting surface of the near-angle light-emitting element 24 is H2; the distance between the near-angle light-emitting element 24 and the first seam 121 is M1, and the distance between the near-angle light-emitting element 24 and the second seam 122 is... The distance is M2, where M2 / M1=H1 / H2, that is, the degree of inclination of the light-emitting element in the first near-angle light-emitting element towards the first seam 121 and the second seam 122 is inversely proportional to the distance of the first near-angle light-emitting element 24 from the first seam 121 and the second seam 122, respectively. In this way, the light emitted by the main light-emitting surface of the near-slit light-emitting element 20 can cover the intersection of the first seam 121 and the second seam 122, thereby increasing the light intensity at the intersection of the first seam 121 and the second seam 122 and further improving the display effect.

[0055] refer to Figures 4 to 6 In some embodiments, the display panel further includes a planarization layer 30 located on the side of the light-emitting element close to the substrate 10, and a near-seam light-emitting element 20 disposed on the planarization layer 30; the near-seam light-emitting element 20 includes a first side and a second side located on the side of the first side away from the splice seam 120; the thickness of the planarization layer 30 at the corresponding position on the first side is less than the thickness of the planarization layer 30 at the corresponding position on the second side.

[0056] In this embodiment, by varying the thickness of the planarization layer 30, the near-slit light-emitting element 20 has a smaller thickness on the side closer to the splice seam 120 and a larger thickness on the side farther from the splice seam 120. This allows the main light-emitting surface of the near-slit light-emitting element 20 on the planarization layer 30 to be tilted towards the splice seam 120, thereby enabling the light emitted from the main light-emitting surface of the near-slit light-emitting element 20 to be focused towards the splice seam 120.

[0057] Based on the same inventive concept, the present invention also provides a display device. Figure 10 The diagram shown is a structural schematic of a display device provided in an embodiment of the present invention. (Reference) Figure 10 The display device 200 provided in this embodiment includes the display panel 100 provided in any of the above embodiments of the present invention.

[0058] In the display device 200 provided in this embodiment, the near-seam light-emitting element 20 of the sub-display panel includes an adjacent first light-emitting element 21 and a second light-emitting element 22. The first light-emitting element 21 is closest to the splicing seam 120. The angle between the main light-emitting surface of the first light-emitting element 21 and the plane where the substrate 10 is located is α, and the angle between the main light-emitting surface of the second light-emitting element 22 and the plane where the substrate 10 is located is β. Both α and β are acute angles. The main light-emitting surfaces of the first light-emitting element 21 and the second light-emitting element 22 are inclined toward the splicing seam 120. The light emitted from the main light-emitting surfaces of the first light-emitting element 21 and the second light-emitting element 22 can be concentrated toward the splicing seam 120, improving the situation of shadows formed at the splicing seam 120 due to insufficient light, weakening the existence of the splicing seam 120, and improving the display effect. Furthermore, a portion of the light emitted from the main light-emitting surface of the second light-emitting element 22 can compensate for the reduced light between the first light-emitting element 21 and the second light-emitting element 22. Also, because the tilt angle β of the second light-emitting element 22 is smaller, the amount of light reduction on the side of the second light-emitting element 22 away from the splicing seam 120 is also smaller. The difference in light brightness between the first light-emitting element 21 and the second light-emitting element 22, as well as the difference in light brightness between the second light-emitting element 22 and the light-emitting element in the middle of the sub-display panel, is reduced. Thus, in the display panel, the light gradually transitions from the splicing seam 120 to the near-seam light-emitting element 20, and then from the near-seam light-emitting element 20 to the light-emitting element in the middle of the sub-display panel 110, improving the display effect of the display panel.

[0059] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises: a plurality of sub-panels, the plurality of sub-panels are spliced with each other, and a splicing joint is formed between two adjacent sub-panels; the sub-panels comprise a substrate, and light-emitting elements arranged on one side of the substrate, the light-emitting elements comprise near-joint light-emitting elements, the near-joint light-emitting elements are close to the splicing joint, and a light-emitting surface of the near-joint light-emitting elements comprises a main light-emitting surface and a side light-emitting surface, the side light-emitting surface at least partially surrounds the main light-emitting surface; the near-joint light-emitting elements comprise a first light-emitting element closest to the splicing joint and a second light-emitting element adjacent to the first light-emitting element and located away from the splicing joint, an included angle between the main light-emitting surface of the first light-emitting element and a plane where the substrate is located is α, and an included angle between the main light-emitting surface of the second light-emitting element and the plane where the substrate is located is β; wherein 0°<β<α<90°; the splicing joint comprises a first joint arranged in a first direction and a second joint arranged in a second direction, the first joint and the second joint intersect, and the first direction and the second direction are both perpendicular to a thickness direction of the display panel; the near-joint light-emitting elements further comprise a near-angle light-emitting element, the near-angle light-emitting element is close to the first joint and close to the second joint; in a direction in which the near-angle light-emitting element points to the first joint, a height difference of the main light-emitting surface of the near-angle light-emitting element is H1; in a direction in which the near-angle light-emitting element points to the second joint, a height difference of the main light-emitting surface of the near-angle light-emitting element is H2; a distance between the near-angle light-emitting element and the first joint is M1, and a distance between the near-angle light-emitting element and the second joint is M2, wherein M2 / M1=H1 / H2.

2. The display panel of claim 1, wherein, the near-joint light-emitting elements further comprise at least one light-emitting element arranged away from the splicing joint on a side of the second light-emitting element; in a direction away from the splicing joint, an included angle between the main light-emitting surface of all the light-emitting elements of the near-joint light-emitting elements and the plane where the substrate is located gradually decreases.

3. The display panel of claim 2, wherein, the included angle between the main light-emitting surface of all the light-emitting elements of the near-joint light-emitting elements and the plane where the substrate is located gradually decreases in a direction away from the splicing joint.

4. The display panel of claim 2, wherein, the near-joint light-emitting elements comprise first color light elements and second color light elements, in a direction away from the splicing joint, an included angle between the main light-emitting surface of the first color light elements of the first light-emitting element, the first color light elements of the second light-emitting element and the first color light elements of a third light-emitting element and the plane where the substrate is located is an arithmetic progression value; and an included angle between the main light-emitting surface of the second color light elements of the first light-emitting element, the second color light elements of the second light-emitting element and the second color light elements of the third light-emitting element and the plane where the substrate is located is an arithmetic progression value.

5. The display panel of claim 4, wherein, The first color light element has a light emitting wavelength greater than that of the second color light element, an angle between a main light emitting surface of the first color light element and a plane where the substrate is located is W, and an angle between a main light emitting surface of the second color light element and the plane where the substrate is located is V, wherein 0° < V < W < 90°.

6. The display panel of claim 5, wherein, The near-seam light emitting element further comprises a third color light element, the third color light element has a light emitting wavelength less than that of the second color light element, and an angle between a main light emitting surface of the third color light element and the plane where the substrate is located is U, wherein 0° < U < V < 90°.

7. The display panel of claim 1, wherein, In a direction where the near-angle light emitting element points to the first seam, a height of the main light emitting surface of the near-angle light emitting element has a decreasing trend; in a direction where the near-angle light emitting element points to the second seam, the height of the main light emitting surface of the near-angle light emitting element has a decreasing trend.

8. The display panel of claim 1, wherein, The display panel further comprises a planarization layer located on a side of the light emitting element close to the substrate, and the near-seam light emitting element is arranged on the planarization layer. The near-seam light emitting element comprises a first side and a second side located on a side of the first side away from the splicing seam. The thickness of the planarization layer at a corresponding position of the first side is less than the thickness of the planarization layer at a corresponding position of the second side.

9. A display device, characterized by comprising: The display panel comprises any one of the display panels as claimed in claims 1-8.

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