Display panel and display device

Abstract

Disclosed are a display panel (10) and a display device. The display panel comprises: a substrate (11); a plurality of light-emitting units (12) comprising a plurality of first light-emitting units (121) and located on the substrate, wherein the orthographic projection of each first light-emitting unit (121) on the substrate has a plurality of first corner portions; a touch mesh layer (13) located on the side of the plurality of light-emitting units away from the substrate and provided with a plurality of mesh holes (k1) corresponding to the plurality of light-emitting units, wherein the orthographic projections of the light-emitting units are located within the orthographic projections of corresponding mesh holes; and a raised portion (14) located on the side of the plurality of light-emitting units away from the substrate, wherein the orthographic projection of the raised portion overlaps the orthographic projection of the touch mesh layer and is distributed close to the position where at least one first corner portion is located. By means of the touch mesh layer and the raised portion, the light output at large viewing angles of the side of the first light-emitting units close to the raised portion can be reduced, such that the light output at large viewing angles of the first light-emitting units in different directions can be kept as uniform as possible, improving the light-emitting uniformity of the display panel, and mitigating the problem of color cast of the display panel.

Description

Display panel and display device

[0001] The present application claims priority to the Chinese patent application No. 202411337237.9, filed on September 24, 2024, and entitled "Display panel and display device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0003] Active matrix organic light emitting device (AMOLED for short) is a current-driven light emitting device, which is increasingly applied in high-performance display field due to its low power consumption, self-luminous, high color saturation, fast response, wide viewing angle and flexible implementation.

[0004] At present, due to the different distances between the multiple light emitting units for emitting light of different colors and the touch structure in the display panel, the large viewing angle light output of different light emitting units is different, which causes the display panel to display color deviation at different viewing angles, resulting in poor display effect of the display panel. SUMMARY

[0005] The present application provides a display panel and a display device. The technical solution is as follows:

[0006] According to an aspect of the present application, a display panel is provided, comprising:

[0007] a substrate;

[0008] a plurality of light emitting units, the plurality of light emitting units being located on the substrate, the plurality of light emitting units comprising a plurality of first light emitting units, a normal projection of the first light emitting unit on the substrate having a plurality of first corner portions;

[0009] a touch grid layer, the touch grid layer being located on a side of the plurality of light emitting units away from the substrate, the touch grid layer having a plurality of grid holes corresponding to the plurality of light emitting units, a normal projection of the light emitting unit on the substrate being located within a normal projection of the corresponding grid hole on the substrate;

[0010] and a raised portion located on a side of the plurality of light emitting units away from the substrate, a normal projection of the raised portion on the substrate and a normal projection of the touch grid layer on the substrate being overlapped, and being distributed near a position where at least one of the first corner portions is located.

[0011] Optionally, the plurality of light emitting units further comprises a plurality of second light emitting units; a plurality of first corners in the orthographic projection of one of the first light emitting units on the substrate corresponds to a plurality of the second light emitting units one by one, and the orthographic projection of the second light emitting unit on the substrate is oppositely distributed with the corresponding first corner;

[0012] The plurality of first corners comprises a first sub-corner and a second sub-corner, and the minimum distance between the orthographic projection of the second light emitting unit corresponding to the first sub-corner on the substrate and the first sub-corner is greater than the minimum distance between the orthographic projection of the second light emitting unit corresponding to the second sub-corner on the substrate and the second sub-corner.

[0013] Wherein, the orthographic projection of the pad part on the substrate is distributed near the position where the first sub-corner is located.

[0014] Optionally, the outer shape of the first sub-corner is arc-shaped, and the outer shape of the second sub-corner is sharp or arc-shaped.

[0015] Wherein, in the case that the outer shapes of the first sub-corner and the second sub-corner are both arc-shaped, the arc of the first sub-corner is greater than the arc of the second sub-corner.

[0016] Optionally, the pad part is located on the side of the touch grid layer close to the substrate.

[0017] Optionally, the display panel further comprises a first insulating layer and a bridging metal layer.

[0018] The first insulating layer is located on the side of the touch grid layer close to the substrate, the bridging metal layer is located on the side of the first insulating layer close to the substrate, and the first insulating layer has a via hole, and the bridging metal layer is electrically connected with the touch grid layer through the via hole.

[0019] The pad part and the bridging metal layer are in the same layer structure.

[0020] Optionally, the touch grid layer comprises a plurality of grid electrodes and a connecting electrode for connecting two adjacent grid electrodes, and the plurality of grid electrodes are used to enclose a plurality of grid holes.

[0021] The orthographic projection of the pad part on the substrate intersects and overlaps with the orthographic projection of the connecting electrode on the substrate.

[0022] Optionally, the orthographic projection of the pad part on the substrate is located within the orthographic projection of the connecting electrode on the substrate.

[0023] Optionally, at least part of the boundary of the orthographic projection of the elevation portion on the substrate coincides with at least part of the boundary of the orthographic projection of the connection electrode on the substrate.

[0024] Optionally, the elevation portion is in a strip shape, and in the width direction of the elevation portion, the width of the elevation portion is smaller than the width of the connection electrode overlapping the elevation portion.

[0025] Optionally, in the width direction of the elevation portion, the boundary of the orthographic projection of the elevation portion on the substrate coinciding with the orthographic projection of the connection electrode on the substrate is located on the side of the orthographic projection of the elevation portion on the substrate closer to the first corner portion.

[0026] Optionally, in the case that the plurality of first corner portions include a first sub-corner portion and a second sub-corner portion, the first sub-corner portion is in an arc shape.

[0027] Optionally, the edge of the orthographic projection of the elevation portion on the substrate on the side closer to the first sub-corner portion is in an arc shape, and the arc direction of the orthographic projection of the elevation portion on the substrate on the side closer to the first sub-corner portion is parallel to the arc direction of the first sub-corner portion.

[0028] Optionally, the edge of the orthographic projection of the elevation portion on the substrate on the side closer to the first sub-corner portion includes a plurality of first line segments, and the plurality of first line segments are distributed around the first sub-corner portion.

[0029] Optionally, the edge of the orthographic projection of the elevation portion on the substrate on the side closer to the first corner portion is in a straight line shape.

[0030] Optionally, the edge of the orthographic projection of the connection electrode on the substrate on the side closer to the first sub-corner portion overlapping the elevation portion is in an arc shape.

[0031] Optionally, the edge of the orthographic projection of the connection electrode on the substrate on the side closer to the first sub-corner portion overlapping the elevation portion includes a plurality of second line segments, and the plurality of second line segments are distributed around the first sub-corner portion.

[0032] Optionally, the orthographic projection of the elevation portion on the substrate includes a first projection portion and a second projection portion, the first projection portion is located within the orthographic projection of the connection electrode on the substrate, and the second projection portion is located outside the orthographic projection of the connection electrode on the substrate.

[0033] Optionally, the second projection portion is located on the side closer to the first corner portion.

[0034] Optionally, the elevation portion is located on the side of the touch grid layer away from the substrate.

[0035] Optionally, the heightening part comprises a light-absorbing block or a light-reflecting block.

[0036] According to another aspect of the present application, there is provided a display device, comprising: a power supply assembly and a display panel, the display panel being the display panel described above, and the power supply assembly being configured to supply power to the display panel.

[0037] In the embodiments of the present application, the touch grid layer and the heightening part can reduce the large-view-angle light output of the first light-emitting unit on the side close to the heightening part, so that the large-view-angle light output of the first light-emitting device in different directions is kept as consistent as possible. Thus, the color cast phenomenon of the display panel in picture display in different directions can be avoided, the light output uniformity of the display panel can be improved, and the color cast problem of the display panel can be solved.

[0038] In addition, since the orthogonal projection of the heightening part on the substrate and the orthogonal projection of the touch grid layer on the substrate intersect and overlap, the influence of the heightening part on the front light output of the light-emitting unit can be reduced, and the display effect of the display panel can be further improved. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] FIG. 1 is a structural schematic diagram of a display panel;

[0041] FIG. 2 is a light output schematic diagram of the display panel shown in FIG. 1;

[0042] FIG. 3 is a structural schematic diagram of a display panel according to an embodiment of the present application;

[0043] FIG. 4 is a light output schematic diagram of the display panel shown in FIG. 3;

[0044] FIG. 5 is a structural schematic diagram of another display panel according to an embodiment of the present application;

[0045] FIG. 6 is a structural schematic diagram of a touch grid layer and a bridge metal layer according to an embodiment of the present application;

[0046] FIG. 7 is a structural schematic diagram of another display panel according to an embodiment of the present application;

[0047] FIG. 8 is a structural schematic diagram of another display panel according to an embodiment of the present application;

[0048] FIG. 9 is a structural schematic diagram of another display panel according to an embodiment of the present application;

[0049] FIG. 10 is a schematic diagram of a distribution relationship between a cushioning portion and a first light emitting unit according to an embodiment of the present application;

[0050] FIG. 11 is a schematic diagram of a structure of another display panel according to an embodiment of the present application;

[0051] FIG. 12 is a schematic diagram of a distribution relationship between a connecting electrode and a first light emitting unit according to an embodiment of the present application;

[0052] FIG. 13 is a schematic diagram of a structure of another display panel according to an embodiment of the present application;

[0053] FIG. 14 is a schematic diagram of a structure of another display panel according to an embodiment of the present application;

[0054] FIG. 15 is a light emitting schematic diagram of the display panel shown in FIG. 13;

[0055] FIG. 16 is a schematic diagram of a structure of another display panel according to an embodiment of the present application;

[0056] FIG. 17 is a schematic diagram of a structure of another display panel according to an embodiment of the present application;

[0057] FIG. 18 is a schematic diagram of a structure of another display panel according to an embodiment of the present application.

[0058] The specific embodiments of the present application have been shown through the above-described drawings, and will be described in more detail hereinafter. The drawings and the written description are not intended to restrict the scope of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0059] Referring to FIG. 1 and FIG. 2, FIG. 1 is a schematic diagram of a structure of a display panel, and FIG. 2 is a light emitting schematic diagram of the display panel shown in FIG. 1. The display panel 20 includes a substrate 21, a plurality of light emitting units 22 located on the substrate 21, and a touch structure 23 (Flexible Multi Layer On Cell; FMLOC) located on the substrate 21 provided with the plurality of light emitting units 22.

[0060] The light emitting unit 22 can include at least one of an organic light emitting diode (OLED) and a quantum dot light emitting diode (QLED). The plurality of light emitting units 22 can include light emitting devices for emitting light of various colors, for example, a red light emitting device R for emitting red light, a blue light emitting device B for emitting blue light, and a green light emitting device G for emitting green light. Through the light emitting devices capable of emitting light of various colors, the display panel 20 can display images. After the display panel 20 is started, the light emitting unit 22 can emit light, and the light can be emitted out of the display panel 20 to realize the function of image display.

[0061] Part of the light emitted by the light emitting unit 22 can be emitted out of the display panel 20 in a direction perpendicular to the display surface of the display panel 20, and part of the light with a large viewing angle emitted by the light emitting unit 22 can be irradiated to the touch structure 23. Since the material of the touch structure 23 includes metal, the part of the light cannot be emitted out of the display panel 20. However, due to the different distances between the plurality of light emitting units 22 for emitting light of different colors in the display panel 20 and the touch structure 23, the large viewing angle light emitting amount of different light emitting units 22 is different, which causes the display panel 20 to have a display color deviation phenomenon at different viewing angles, and the display effect of the display panel 20 is poor. As shown in FIG. 2, the first light s1 emitted by the blue light emitting unit B can be emitted out of the display panel 20, the second light s2 emitted by the blue light emitting unit B has the same light emitting angle as the first light s1, and the red light emitting unit R and the green light emitting unit G can also emit light with the same light emitting angle as the first light s1. However, among the plurality of light beams, only the first light s1 can be emitted out of the display panel 20.

[0062] This is because the distance between one corner of the blue light emitting device B and the touch structure in a direction parallel to the plate surface of the substrate 21 is greater than the distance between the other corners of the blue light emitting device B and the touch structure 23, and greater than the distance between the green light emitting device G (or the red light emitting device R) and the touch structure 23. The large viewing angle light emitting amount of the blue light emitting device B in at least one direction is large, and the display panel 20 has a color deviation problem. The light emitting angle can refer to the angle between the light emitted by the light emitting unit 22 and the normal line of the light emitting surface of the display panel 20, and the normal line of the light emitting surface of the display panel 20 can be perpendicular to the plate surface of the substrate 21.

[0063] Embodiments of the present application provide a display panel and a display device, which can solve some problems in the related art.

[0064] Please refer to FIG. 3 and FIG. 4, FIG. 3 is a structural schematic diagram of a display panel 10 provided by an embodiment of the present application, and FIG. 4 is a light emitting schematic diagram of the display panel 10 shown in FIG. 3. According to an aspect of the present application, a display panel 10 is provided, which can include a substrate 11, a plurality of light emitting units 12, a touch grid layer 13 and a raised portion 14.

[0065] The plurality of light emitting units 12 can be located on the substrate 11, and the plurality of light emitting units 12 can be arranged along a direction parallel to the plate surface of the substrate 11. The plurality of light emitting units 12 includes a plurality of first light emitting units 121, and the orthographic projection of the first light emitting unit 121 on the substrate 11 has a plurality of first corners. For example, the orthographic projection of the first light emitting unit 121 on the substrate 11 is a quadrilateral, that is, the orthographic projection of the first light emitting unit 121 on the substrate 11 has four first corners. Here, the first light emitting unit 121 can emit light of a first color, and the light of the first color is at least one of blue light, red light and green light. For example, the light of the first color is blue light.

[0066] The touch grid layer 13 can be located on the side of the plurality of light emitting units 12 away from the substrate 11. The touch grid layer 13 has a plurality of grid holes k1 corresponding to the plurality of light emitting units 12, and the orthographic projection of the light emitting unit 12 on the substrate 11 is located within the orthographic projection of the corresponding grid hole k1 on the substrate 11. The orthographic projection of the light emitting unit 12 on the substrate 11 and the orthographic projection of the touch grid layer 13 on the substrate 11 do not overlap each other, so as to reduce the influence of the touch grid layer 13 on the front light emitting amount of the display panel 10.

[0067] The raised portion 14 can be located on the side of the plurality of light emitting units 12 away from the substrate 11. The orthographic projection of the raised portion 14 on the substrate 11 and the orthographic projection of the touch grid layer 13 on the substrate 11 overlap, and are distributed near the positions of at least one first corner. The raised portion 14 can be located on the side of the touch grid layer 13 close to the substrate 11, or the raised portion 14 can be located on the side of the touch grid layer 13 away from the substrate 11. When the raised portion 14 is located on the side of the touch grid layer 13 close to the substrate 11, the height of the part of the touch grid layer 13 stacked with the raised portion 14 can be increased. In this way, the light blocking ability of this part of the touch grid layer 13 to the first light emitting unit 121 can be improved, that is, the large angle light emitting amount of the first light emitting unit 121 on the side close to the raised portion 14 can be reduced by the part of the touch grid layer 13 with increased height. The large angle light emitting amount of the light emitted by each first corner of the first light emitting unit can be kept as consistent as possible, so as to avoid the phenomenon that the large angle light emitting amount of the light emitted by the first light emitting unit 121 is inconsistent in different directions. Thus, the color cast phenomenon of the display panel 10 when displaying a picture in different directions can be avoided, and the display effect of the display panel 10 can be improved.

[0068] When the pad 14 is located on the side of the touch grid layer 13 away from the substrate 11, the large viewing angle light emission amount of the first light emitting unit 121 can be adjusted by the pad 14 to improve the color cast problem of the display panel 10.

[0069] In summary, the display panel provided by the embodiments of the present application includes a substrate, a plurality of light emitting units, a touch grid layer, and a pad. The touch grid layer and the pad can reduce the large viewing angle light emission amount of the first light emitting unit on the side close to the pad, so that the large viewing angle light emission amount of the first light emitting unit in different directions is as consistent as possible. Thus, the color cast phenomenon of the display panel during picture display in different directions can be avoided, the light emission uniformity of the display panel can be improved, and the color cast problem of the display panel can be improved.

[0070] In addition, since the orthogonal projection of the pad on the substrate and the orthogonal projection of the touch grid layer on the substrate intersect and overlap, the influence of the pad on the front light emission amount of the light emitting unit can be reduced, and the display effect of the display panel can be further improved.

[0071] Referring to FIG. 3, in an alternative embodiment, the plurality of light emitting units 12 in the display panel 10 can further include a plurality of second light emitting units 122. Here, the orthogonal projection of the second light emitting unit 122 on the substrate 11 can have a plurality of second corners. For example, the second light emitting unit 122 can include at least one of a red light emitting unit for emitting red light and a green light emitting unit for emitting green light. The shape of the orthogonal projection of the second light emitting unit 122 on the substrate 11 is also a quadrilateral. That is, the orthogonal projection of the second light emitting unit 122 on the substrate 11 can have four second corners.

[0072] In the present application, the plurality of first corners in the orthogonal projection of one first light emitting unit 121 on the substrate 11 in the display panel 10 can correspond to the plurality of second light emitting units 122 one by one. For example, the four first corners in the orthogonal projection of one first light emitting unit 121 on the substrate 11 can correspond to the four second light emitting units 122 one by one. Here, the orthogonal projection of the second light emitting unit 122 on the substrate 11 can be distributed opposite to the corresponding first corners. For this reason, one first light emitting unit 121 can be distributed in the area surrounded by the plurality of second light emitting units 122 corresponding to the plurality of first corners.

[0073] It should be noted that the plurality of light emitting units 12 in the display panel 10 can adopt a blue diamond pixel arrangement. That is, there is a pair of oppositely distributed corners in the orthogonal projection of the adjacent light emitting units 12 on the substrate 11 in the display panel 10. For example, one second corner in the orthogonal projection of the second light emitting unit 122 on the substrate 11 can be arranged opposite to the corresponding first corner.

[0074] In the present application, the plurality of first corners in the orthogonal projection of the first light emitting unit 121 on the substrate 11 can include a first sub-corner b1 and a second sub-corner b2. Here, the minimum distance x1 between the orthogonal projection of the second light emitting unit 122 corresponding to the first sub-corner b1 on the substrate 11 and the first sub-corner b1 is greater than the minimum distance x2 between the orthogonal projection of the second light emitting unit 122 corresponding to the second sub-corner b2 on the substrate 11 and the second sub-corner b2. For example, the four first corners in the orthogonal projection of the first light emitting unit 121 on the substrate 11 can include one first sub-corner b1 and three second sub-corners b2.

[0075] In the present application, the orthogonal projection of the display panel 10 on the substrate 11 can be distributed near the position of the first sub-corner b1.

[0076] In this case, since the first sub-corner b1 is farther away from the adjacent second light emitting unit 122 and the second sub-corner b2 is closer to the adjacent second light emitting unit 122, the light emission of the first light emitting unit 121 at the position of the first sub-corner b1 is different from the light emission of the second light emitting unit 122 at the position of the second sub-corner b2. Therefore, after the orthogonal projection of the display panel 10 on the substrate 11 is distributed near the position of the first sub-corner b1, the shielding capability of the first light emitting unit 121 from the first sub-corner b1 can be improved by the raised portion 14 or the portion of the touch grid layer 13 overlapping the raised portion 14, so as to reduce the large viewing angle light emission amount of the first light emitting unit 121 from the first sub-corner b1, and thus the large viewing angle light emission amount of the first light emitting unit from the first sub-corner b1 is consistent with the large viewing angle light emission amount of the second light emitting unit from the second sub-corner b2.

[0077] Optionally, the first sub-corner b1 is arc-shaped, and the second sub-corner b2 is sharp-angled or arc-shaped. In the case where the first sub-corner b1 and the second sub-corner b2 are both arc-shaped, the curvature of the first sub-corner b1 is greater than the curvature of the second sub-corner b2.

[0078] Please refer to FIG. 4. In an optional embodiment, the raised portion 14 can be located on the side of the touch grid layer 13 close to the substrate 11. Since the touch grid layer 13 is an opaque film layer, the raised portion 14 can be arranged on the side of the touch grid layer 13 close to the substrate 11 to increase the distance between the touch grid layer 13 and the first light emitting unit 121 perpendicular to the substrate 11, so that the large viewing angle light emission amount of the first light emitting unit 121 close to the raised portion 14 can be reduced by the raised touch grid layer 13. In this way, the light emission uniformity of the display panel 10 can be improved, and the color cast problem of the display panel 10 can be solved.

[0079] As shown in FIG. 4, the first light s1 emitted by the first light emitting unit 121 is incident on the touch grid layer 13 located on the side of the elevation 14 away from the substrate 11. Since the touch grid layer 13 is an opaque film layer, the touch grid layer 13 located on the elevation 14 can block the first light s1 from being emitted out of the display panel 10.

[0080] That is, the distance between the part of the touch grid layer and the light emitting unit 12 in the direction perpendicular to the panel of the substrate 11 is increased by the elevation 14. As a result, the light rays with a larger light emission angle that can originally be emitted out of the display panel 10 are incident on the touch grid layer 13 located on the side of the elevation 14 away from the substrate 11. The elevated touch grid layer 13 can prevent at least part of the light rays (e.g., the first light s1) emitted by the first light emitting unit 121 from being emitted out of the display panel 10. In this way, the light emission uniformity of the display panel 10 can be improved, and the color cast problem of the display panel 10 can be solved. The light emission angle can refer to the angle between the light rays emitted by the light emitting unit 12 and the normal line of the light emission surface of the display panel 10. The normal line of the light emission surface of the display panel 10 can be perpendicular to the panel surface of the substrate 11.

[0081] It should be noted that, in order to clearly show the light path of the light rays emitted by the light emitting unit 12 and incident on the light blocking structure, only part of the light paths of the light rays emitted by the light emitting unit 12 are shown in FIG. 4. The part of the light paths does not represent the light emission amount of the light emitting unit 12 from the direction shown in the figure.

[0082] Please refer to FIG. 5 and FIG. 6. FIG. 5 is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application, and FIG. 6 is a structural schematic diagram of a touch grid layer 13 and a bridge metal layer 16. In an alternative embodiment, the display panel 10 can further include a first insulating layer 15 and the bridge metal layer 16.

[0083] The first insulating layer 15 is located on the side of the touch grid layer 13 close to the substrate 11, and the bridge metal layer 16 is located on the side of the first insulating layer 15 close to the substrate 11. The first insulating layer 15 can be located between the touch grid layer 13 and the bridge metal layer 16, and the first insulating layer 15 has a via hole. The bridge metal layer 16 is electrically connected to the touch grid layer 13 through the via hole, so as to realize the touch function of the touch grid layer 13.

[0084] The elevation 14 and the bridge metal layer 16 can be a same layer structure. The elevation 14 and the bridge metal layer 16 can be a same layer structure formed by the same patterning process. In this way, the manufacturing process of the display panel 10 is simplified, and the thickness of the display panel 10 can be reduced.

[0085] It should be noted that the first insulating layer 15 between the touch grid layer 13 and the bridging metal layer 16 is an inorganic insulating layer. Therefore, after the first insulating layer 15 is arranged on the side of the raised portion 14 away from the substrate 11 and in the same layer as the bridging metal layer 16, the part of the first insulating layer 15 on the raised portion 14 also protrudes outward, so that the height of the part of the touch grid layer 13 on the side of the part of the first insulating layer 15 away from the substrate 11 is higher, thereby playing a raising effect on the part of the touch grid layer 13 overlapping the raised portion 14.

[0086] In an exemplary embodiment, the display panel 10 can include a touch structure, which can include a first touch electrode layer and a second touch electrode layer, one of which can be the touch grid layer 13 and the other of which can be the bridging metal layer 16. A patterned organic insulating layer formed by using a gray-tone mask as described above is arranged between the two touch electrode layers, and a via is arranged on the patterned organic insulating layer to realize the connection between the touch grid layer 13 and the bridging metal layer 16, thereby forming a self-capacitive touch electrode. Further, the side of the touch structure away from the display substrate can also include a protective layer covering the touch grid layer 13 to protect the touch grid layer 13, which can be an organic material.

[0087] Referring to FIG. 7, which is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application, in an alternative embodiment, the touch grid layer 13 can include a plurality of grid electrodes 131 and a connecting electrode 132 for connecting two adjacent grid electrodes 131, the plurality of grid electrodes 131 being used to enclose a plurality of grid holes k1, and the grid electrodes 131 and the connecting electrode 132 being in a same layer structure. The orthographic projection of the raised portion 14 on the substrate 11 can overlap the orthographic projection of the connecting electrode 132 on the substrate 11. In this way, the light output of the first corner of the first light emitting unit 121 can be adjusted by the raised portion 14 to improve the light output uniformity of the display panel 10 and improve the color cast problem of the display panel 10.

[0088] Referring to FIG. 7, in an alternative embodiment, the orthographic projection of the raised portion 14 on the substrate 11 is located within the orthographic projection of the connecting electrode 132 on the substrate 11. In this way, by layering the raised portion 14 and the connecting electrode 132, the influence of the raised portion 14 on the front light output of the light emitting unit 12 can be reduced, thereby improving the display effect of the display panel 10.

[0089] Referring to FIG. 7, in an alternative embodiment, at least part of the boundary of the orthographic projection of the raised portion 14 on the substrate 11 can coincide with at least part of the boundary of the orthographic projection of the connecting electrode 132 on the substrate 11.

[0090] Please refer to FIG. 7, in an optional implementation, the pad 14 can be in a strip shape, and the width of the pad 14 in the width direction of the pad 14 can be less than the width of the connecting electrode 132 intersecting with the pad 14; wherein the boundary of the orthographic projection of the pad 14 on the substrate 11 and the orthographic projection of the connecting electrode 132 on the substrate 11 in the width direction of the pad 14 is located on the side of the orthographic projection of the pad 14 on the substrate 11 closer to the first corner. In this way, by reducing the light output of the first light emitting unit 121 through the pad 14, the influence of the added pad 14 on other light emitting units 12 in the plurality of light emitting units 12 can be reduced, so as to improve the light output uniformity of the display panel 10 and solve the color cast problem of the display panel 10.

[0091] Please refer to FIG. 8 and FIG. 9, FIG. 8 is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application, and FIG. 9 is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application. In an optional implementation, in the case that the plurality of first corners in the first light emitting unit 121 includes a first sub-corner b1 and a second sub-corner b2, the outer shape of the first sub-corner b1 can be arc-shaped.

[0092] In this case, the part of the edge of the orthographic projection of the pad 14 on the substrate 11 on the side closer to the first sub-corner b1 is arc-shaped, and the arc direction of the orthographic projection of the pad 14 on the substrate 11 on the side closer to the first sub-corner b1 is parallel to the arc direction of the edge of the first sub-corner b1. That is, the part of the edge of the orthographic projection of the pad 14 on the substrate 11 on the side closer to the first sub-corner b1 is similar in shape to the edge of the first sub-corner b1 in the orthographic projection of the first light emitting unit 121 on the substrate 11, which can improve the uniformity of the light output of the first light emitting unit 121 at different viewing angles.

[0093] Alternatively, as shown in FIG. 10, FIG. 10 is a schematic diagram of the distribution relationship between the pad and the first light emitting unit. The part of the edge of the orthographic projection of the pad 14 on the substrate 11 on the side closer to the first sub-corner b1 includes a plurality of first line segments L1, and the plurality of first line segments L1 can be distributed around the first sub-corner b1. Here, the plurality of first line segments L1 can approximately enclose an arc, and the arc direction enclosed by the plurality of first line segments L1 can be approximately parallel to the arc direction of the first sub-corner b1.

[0094] As shown in FIG. 7, the part of the edge of the orthographic projection of the pad 14 on the substrate 11 on the side closer to the first sub-corner b1 can also be straight.

[0095] Please refer to FIG. 11, which is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application. In an alternative implementation, the normal projection of the connection electrode 132 overlapping the raised portion 14 on the substrate 11 can have an arc-shaped edge near the side of the first sub-corner b1.

[0096] Alternatively, please refer to FIG. 12, which is a schematic diagram of the distribution relationship between the connection electrode and the first light emitting unit provided by an embodiment of the present application. The normal projection of the connection electrode 132 overlapping the raised portion 14 on the substrate 11 can include a plurality of second line segments L2 near the edge of the side of the first sub-corner b1. The plurality of second line segments L2 can be distributed around the first sub-corner b1. Here, the plurality of second line segments L2 can approximately form an arc shape, and the direction of the arc shape formed by the plurality of second line segments L2 can be approximately parallel to the direction of the arc shape of the second sub-corner b2.

[0097] In this way, the normal projection of the connection electrode 132 overlapping the raised portion 14 on the substrate 11 can have an edge near the side of the first corner b1, and the shape of the edge of the first corner b1 in the normal projection of the first light emitting unit 121 on the substrate 11 is similar, which can further improve the uniformity of the light output of the first light emitting unit 121 at different viewing angles.

[0098] In this case, as shown in FIG. 11, the normal projection of the grid hole k1 corresponding to the first light emitting unit 121 on the substrate 11 has a first top corner a1 adjacent to the first sub-corner b1 and a second top corner a2 adjacent to the second sub-corner b2. Here, the first top corner a1 can also have an arc shape, and the direction of the arc shape of the first top corner a1 is parallel to the direction of the arc shape of the first corner b1, so the distance between the first top corner a1 and the first corner b1 can be approximately equal to the distance between the boundary of the normal projection of the first light emitting unit 121 on the substrate 11 and the boundary of the normal projection of the corresponding grid hole k1 on the substrate 11, and the distance between the first top corner a1 and the first corner b1 can be greater than the minimum distance between the second top corner a2 and the second corner b2.

[0099] Please refer to FIG. 13, FIG. 14 and FIG. 15, FIG. 13 is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application, FIG. 14 is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application, and FIG. 15 is a light emission schematic diagram of the display panel 10 shown in FIG. 13. In an alternative embodiment, the orthographic projection of the raised portion 14 on the substrate 11 can include a first projection portion t1 and a second projection portion t2. The first projection portion t1 is located within the orthographic projection of the connecting electrode 132 on the substrate 11, and the second projection portion t2 is located outside the orthographic projection of the connecting electrode 132 on the substrate 11. The second projection portion t2 is located on the side closer to the first corner 1. As can be seen from FIG. 15, the first light ray s1 emitted by the first light emitting unit 121 is incident on the raised portion 14. Since the raised portion 14 is a light-blocking film layer, the raised portion 14 can block the first light ray s1 from being emitted out of the display panel 10.

[0100] That is, the shortest distance between the orthographic projection of the raised portion 14 on the substrate 11 and the first corner 1 of the orthographic projection of the first light emitting unit 121 on the substrate 11 is less than the shortest distance between the orthographic projection of the connecting electrode 132 on the substrate 11 and the first corner 1 of the orthographic projection of the first light emitting unit 121 on the substrate 11. By shielding the light emission path of the first light emitting unit 121 through the raised portion 14, light rays that can originally be emitted out of the display panel 10 at a relatively large light emission angle are incident on the raised portion 14. The raised portion 14 and the raised touch grid layer 13 can both avoid at least part of the light rays (e.g., the first light ray s1) emitted by the first light emitting unit 121 from being emitted out of the display panel 10. In this way, the light emission uniformity of the display panel 10 can be further improved, and the color cast problem of the display panel 10 can be improved.

[0101] It should be noted that, in order to clearly show the light path of the light rays emitted by the light emitting unit 12 to the light-blocking structure, only the light path of part of the light rays emitted by the light emitting unit 12 is shown in FIG. 15. The light path of the part of the light rays does not represent the light emission amount of the light emitting unit 12 from the direction shown in the figure.

[0102] Please refer to FIG. 14. In an alternative embodiment, the raised portion 14 can be in a strip shape. In the width direction of the raised portion 14, the ratio of the width of the orthographic projection of the raised portion 14 on the substrate 11 to the width of the connecting electrode 132 on the substrate 11 is in the range of 0.3-2. For example, the ratio of the width of the orthographic projection of the raised portion 14 on the substrate 11 to the width of the connecting electrode 132 on the substrate 11 is 0.3, 0.5, 0.8, 1, 1.5, 1.8 or 2.

[0103] That is, in the target direction, the ratio of the width of the orthographic projection of the raised portion 14 on the substrate 11 to the width of the target portion of the touch grid layer 13 on the substrate 11 ranges from 0.3 to 2, and the orthographic projection of the target portion of the touch grid layer 13 on the substrate 11 overlaps the orthographic projection of the raised portion 14 on the substrate 11; the target direction is the arrangement direction of the first top corner a1 at the position of the raised portion 14 and the adjacent first corner 1.

[0104] Please refer to FIG. 16, which is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application. In an alternative embodiment, the raised portion 14 can be located on the side of the touch grid layer 13 away from the substrate 11.

[0105] Alternatively, the raised portion 14 comprises a light-absorbing block 141 or a light-reflecting block 142. For example, the raised portion 14 comprises the light-absorbing block 141, and the orthographic projection of the light-absorbing block 141 on the substrate 11 overlaps the orthographic projection of the connecting electrode 132 of the touch grid layer 13 on the substrate 11.

[0106] As can be seen from FIG. 16, the first light s1 emitted by the first light-emitting unit 121 is incident on the light-absorbing block 141. Since the light-absorbing block 141 can absorb light, the light-absorbing block 141 can block the first light s1 from being emitted out of the display panel 10.

[0107] That is, by adding the light-absorbing block 141 on the side of the touch grid layer 13 away from the substrate 11, light rays that can originally be emitted out of the display panel 10 at a relatively large angle of light emission are incident on the light-absorbing block 141, and the light-absorbing block 141 can prevent at least part of the light rays emitted by the first light-emitting unit 121 (e.g., the first light s1) from being emitted out of the display panel 10. In this way, the light emission uniformity of the display panel 10 can be further improved, and the color cast problem of the display panel 10 can be improved.

[0108] It should be noted that, in order to clearly show the light path of the light emitted by the light-emitting unit 12 to the light-blocking structure, only part of the light paths of the light emitted by the light-emitting unit 12 are shown in FIG. 16, and the light paths of the part of the light do not represent the amount of light emitted by the light-emitting unit 12 from the direction shown in the figure.

[0109] Please refer to FIG. 17, which is a structural schematic diagram of another display panel 10 provided by an embodiment of the present application. In an example embodiment, the raised portion 14 comprises the light-reflecting block 142, and the display panel 10 further comprises a first flat layer 17 located between the touch grid layer 13 and the light-reflecting block 142; the light-reflecting block 142 is in the shape of a prism, the size of the side of the light-reflecting block 142 close to the substrate 11 is greater than the size of the side of the light-reflecting block 142 away from the substrate 11, and the refractive index of the first flat layer 17 is greater than the refractive index of the light-reflecting block 142.

[0110] As can be seen from FIG. 17, the first light ray s1 emitted by the light emitting unit 12 enters the interior of the first flat layer 17 and irradiates on the sidewall of the light-reflecting block 142, which is the interface between the first flat layer 17 and the light-reflecting block 142. Since the refractive index of the first flat layer 17 is greater than the refractive index of the light-reflecting block 142, the first light ray s1 is in the state of being emitted from a denser medium to a less dense medium, and based on the principle of total reflection, part of the first light ray s1 will be totally reflected at the interface between the light-reflecting block 142 and the first flat layer 17, so that the light-emitting angle of the first light ray s1 emitted by the light emitting unit 12 becomes smaller compared with before the light ray irradiates on the light-blocking structure, and the light-emitting angle can refer to the angle between the light ray emitted by the light emitting unit 12 and the normal line of the light-emitting surface of the display panel 10, and the normal line of the light-emitting surface of the display panel 10 can be perpendicular to the substrate.

[0111] That is, the light-reflecting block 142 guides the light ray that can be originally emitted from the display panel 10 with a large light-emitting angle to the front of the display panel 10, and the light-reflecting block 142 can reduce the light-emitting angle of at least part of the light ray (such as the first light ray s1) emitted by the first light emitting unit 121, so that the light-reflecting block 142 has the following two aspects of effects: first, reducing the light ray emitted by the first light emitting unit 121 with a large light-emitting angle, so as to improve the light-emitting uniformity of the display panel 10 and improve the color cast problem of the display panel 10; second, increasing the light-emitting amount of the first light emitting unit 121 at a smaller light-emitting angle, so as to increase the front light-emitting amount of the display panel 10.

[0112] It should be noted that in FIG. 17, in order to clearly show the light path of the light ray irradiating on the light sensing unit, only part of the light path of the light ray is shown, and the light path of the part of the light ray does not completely represent the light-emitting amount of the light emitting unit 12 from the direction shown in the figure.

[0113] Please refer to FIG. 18, which is a structural schematic diagram of another display panel 10 provided by the embodiments of the present application. In an alternative embodiment, the display panel 10 can further include a driving circuit 18, which is electrically connected with the light emitting unit 12 and the touch grid layer 13 respectively. The display panel 10 can further include the driving circuit 18 on the substrate 11, and the driving circuit 18 is electrically connected with the anode of the light emitting unit 12, so as to provide an anode voltage for the anode. The cathode can provide a cathode voltage for a plurality of pixel structures on the display panel 10.

[0114] In an example embodiment, the cathode can be a light-transmitting electrode, for example, the light-transmitting electrode can be made of a transparent conductive oxide material such as Indium Tin Oxide (ITO), Indium Zinc Oxide (IZO), etc., so that the display panel 10 has a higher transmittance. The anode can be made of at least one of copper (Cu), silver (Ag), and aluminum (Al).

[0115] The driving circuit 18 can include a driving transistor, and a material of an active layer of the driving transistor can include amorphous silicon (a-Si), low temperature poly-silicon (LTPS or p-Si), or metal oxide. The driving transistor can be a low temperature poly-silicon thin film transistor or a single crystal silicon thin film transistor.

[0116] In an example embodiment, the bump 14 can be insulated from the driving circuit 18, and the bump 14 can have no electrical property.

[0117] Alternatively, in an example embodiment, the bump 14 is electrically connected to the driving circuit 18 and has a constant voltage, so that the bump 14 can avoid having an unstable voltage, and a parasitic capacitance between the bump 14 and the touch grid layer 13 can be avoided, and the touch sensitivity of the touch grid layer 13 can be improved.

[0118] In summary, the display panel provided in the embodiments of the present application includes a substrate, a plurality of light emitting units, a touch grid layer, and a bump. The touch grid layer and the bump can reduce the large viewing angle light emitting amount of the first light emitting unit on a side close to the bump, so that the large viewing angle light emitting amount of the first light emitting unit in different directions is kept as consistent as possible. Thus, the color cast phenomenon of the display panel in picture display in different directions can be avoided, the light emitting uniformity of the display panel can be improved, and the color cast problem of the display panel can be improved.

[0119] In addition, since the orthographic projection of the bump on the substrate and the orthographic projection of the touch grid layer on the substrate overlap, the influence of the bump on the front light emitting amount of the light emitting unit can be reduced, and the display effect of the display panel can be further improved.

[0120] The embodiments of the present application also provide a display device, which includes a power supply component and a display panel. The power supply component is configured to supply power to the display panel. The display panel can be the display panel in any of the above embodiments.

[0121] The display device can be any product or component with display function, such as mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, etc.

[0122] In the present application, the term "at least one of A and B" is merely a description of the associated relationship, which means that there can be three relationships, for example, at least one of A and B can mean that A exists alone, A and B exist together, and B exists alone.

[0123] It should be noted that in the drawings, the dimensions of layers and regions can be exaggerated for clarity. Also, it can be understood that when a component or layer is referred to as being "on" another component or layer, it can be directly on the other component or layer, or intervening layers can also be present. In addition, it can be understood that when a component or layer is referred to as being "under" another component or layer, it can be directly under the other component or layer, or one or more intervening layers or components can also be present. In addition, it can be understood that when a layer or component is referred to as being "between" two layers or components, it can be the only layer or component between the two layers or components, or one or more intervening layers or components can also be present. Similar reference numerals can indicate similar components throughout the specification.

[0124] In the present application, the terms "first", "second", "third", and "fourth" are used only for descriptive purposes and should not be construed as indicating or implying relative importance. The term "a plurality of" means two or more, unless otherwise expressly specified.

[0125] The above description is only optional embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized by, The display panel comprises: a substrate; a plurality of light emitting units on the substrate, the plurality of light emitting units comprising a plurality of first light emitting units, a projection of the first light emitting units on the substrate having a plurality of first corners; a touch grid layer on a side of the plurality of light emitting units away from the substrate, the touch grid layer having a plurality of grid holes corresponding to the plurality of light emitting units, a projection of the light emitting units on the substrate being within a projection of the corresponding grid holes on the substrate; and a raised portion on a side of the plurality of light emitting units away from the substrate, a projection of the raised portion on the substrate and a projection of the touch grid layer on the substrate being overlapped, and the raised portion being distributed near a position of at least one of the first corners.

2. The display panel of claim 1, wherein, The plurality of light emitting units further comprises a plurality of second light emitting units; a plurality of first corners in a projection of one of the first light emitting units on the substrate corresponding to a plurality of the second light emitting units one by one, a projection of the second light emitting units on the substrate being distributed opposite to the corresponding first corners; The plurality of first corners comprises a first sub-corner and a second sub-corner, a minimum distance between a projection of the second light emitting unit corresponding to the first sub-corner on the substrate and the first sub-corner being greater than a minimum distance between a projection of the second light emitting unit corresponding to the second sub-corner on the substrate and the second sub-corner; Wherein, the projection of the raised portion on the substrate is distributed near a position of the first sub-corner.

3. The display panel of claim 2, wherein, The first sub-corner has an arc shape, and the second sub-corner has a sharp corner or an arc shape; Wherein, in the case that the first sub-corner and the second sub-corner both have an arc shape, the first sub-corner has a greater curvature than the second sub-corner.

4. The display panel of claim 1, wherein, The raised portion is on a side of the touch grid layer close to the substrate.

5. The display panel of claim 4, wherein, The display panel further comprises a first insulating layer and a bridging metal layer; The first insulating layer is on a side of the touch grid layer close to the substrate, the bridging metal layer is on a side of the first insulating layer close to the substrate, and the first insulating layer has a via hole, the bridging metal layer is electrically connected to the touch grid layer through the via hole; The raised portion and the bridging metal layer are in the same layer structure.

6. The display panel of any one of claims 1 to 5, wherein, The touch grid layer comprises a plurality of grid electrodes and a connecting electrode for connecting two adjacent grid electrodes, the plurality of grid electrodes being used to enclose a plurality of grid holes; The projection of the raised portion on the substrate is overlapped with the projection of the connecting electrode on the substrate.

7. The display panel of claim 6, wherein, The projection of the raised portion on the substrate is within the projection of the connecting electrode on the substrate.

8. The display panel of claim 7, wherein, At least part of the boundary of the projection of the raised portion on the substrate coincides with at least part of the boundary of the projection of the connecting electrode on the substrate.

9. The display panel of claim 8, wherein, The raised portion is in a strip shape, and the width of the raised portion in the width direction of the raised portion is less than the width of the connecting electrode overlapped with the raised portion. The boundary, at which the orthographic projection of the pad height portion on the substrate coincides with the orthographic projection of the connecting electrode on the substrate, is located on the side of the orthographic projection of the pad height portion on the substrate closer to the first corner portion in the width direction of the pad height portion.

10. The display panel of claim 6, wherein, In a case where the plurality of first corner portions include a first sub-corner portion and a second sub-corner portion, the first sub-corner portion has an arc shape; An edge of the part of the orthographic projection of the pad height portion on the substrate closer to the first sub-corner portion has an arc shape, and the arc direction of the part of the orthographic projection of the pad height portion on the substrate closer to the first sub-corner portion is parallel to the arc direction of the first sub-corner portion. Alternatively, the edge of the part of the orthographic projection of the pad height portion on the substrate closer to the first sub-corner portion includes a plurality of first line segments, and the plurality of first line segments are distributed around the first sub-corner portion. Alternatively, the edge of the part of the orthographic projection of the pad height portion on the substrate closer to the first corner portion has a straight line shape.

11. The display panel of claim 10, wherein, An edge of the part of the orthographic projection of the connecting electrode on the substrate overlapping with the pad height portion closer to the first sub-corner portion has an arc shape; or the edge of the part of the orthographic projection of the connecting electrode on the substrate overlapping with the pad height portion closer to the first sub-corner portion includes a plurality of second line segments, and the plurality of second line segments are distributed around the first sub-corner portion.

12. The display panel of claim 6, wherein, The orthographic projection of the pad height portion on the substrate includes a first projection part and a second projection part, the first projection part is located within the orthographic projection of the connecting electrode on the substrate, and the second projection part is located outside the orthographic projection of the connecting electrode on the substrate. The second projection part is located on the side closer to the first corner portion.

13. The display panel of claim 1, wherein, The pad height portion is located on the side of the touch grid layer away from the substrate.

14. The display panel of claim 13, wherein, The pad height portion includes a light-absorbing block or a light-reflecting block.

15. A display device comprising: The display device includes a power supply assembly and a display panel, the display panel is any one of the display panels in claims 1 to 14, and the power supply assembly is configured to supply power to the display panel.

Images