Display panel and display device

Abstract

The invention discloses a display panel and a display device, and belongs to the technical field of display. The display panel comprises a substrate, a plurality of light-emitting units, a touch grid layer and a heightening part. Through the touch grid layer and the heightening part, the large-view-angle light-emitting amount of the side, close to the heightening part, of the first light-emitting unit can be reduced, so that the large-view-angle light-emitting amounts of the first light-emitting device in different directions are kept consistent as much as possible, the light-emitting uniformity of the display panel can be improved, and the color cast problem of the display panel is solved.

Description

Technical Field

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

[0002] Active matrix organic light emitting device (AMOLED) is a current-type light-emitting device that is increasingly used in the field of high-performance displays due to its low power consumption, self-luminescence, high color saturation, fast response, wide viewing angle and flexibility.

[0003] At present, due to the different distances between 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, causing the display panel to have color deviation at different viewing angles, resulting in poor display effect of the display panel. Summary of the invention

[0004] The embodiments of the present application provide a display panel and a display device. The technical solution is as follows:

[0005] According to one aspect of the present application, a display panel is provided, comprising:

[0006] substrate;

[0007] A plurality of light-emitting units, the plurality of light-emitting units are located on the substrate, the plurality of light-emitting units include a plurality of first light-emitting units, and the orthographic projection of the first light-emitting unit on the substrate has a plurality of first corners;

[0008] A touch grid layer, the touch grid layer is located on a side of the plurality of light-emitting units away from the substrate, the touch grid layer has a plurality of grid holes corresponding to the plurality of light-emitting units, and the orthographic projections of the light-emitting units on the substrate are located within the orthographic projections of the corresponding grid holes on the substrate;

[0009] And, the elevated portion is located on a side of the plurality of light-emitting units away from the substrate, the orthographic projection of the elevated portion on the substrate overlaps with the orthographic projection of the touch grid layer on the substrate, and is distributed near at least one of the first corners.

[0010] Optionally, the plurality of light-emitting units further include a plurality of second light-emitting units; a plurality of first corners in an orthographic projection of one of the first light-emitting units on the substrate correspond one-to-one to a plurality of the second light-emitting units, and the orthographic projection of the second light-emitting unit on the substrate is distributed relatively to the corresponding first corners;

[0011] The multiple first corners include: a first sub-corner and a second sub-corner, wherein 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;

[0012] The orthographic projection of the elevated portion on the substrate is distributed close to the location of the first sub-corner.

[0013] Optionally, the first sub-corner portion has an arc shape, and the second sub-corner portion has a sharp angle or an arc shape;

[0014] Among them, when the first sub-corner and the second sub-corner are both arc-shaped, the curvature of the first sub-corner is greater than the curvature of the second sub-corner.

[0015] Optionally, the raised portion is located on a side of the touch grid layer close to the substrate.

[0016] Optionally, the display panel further includes a first insulating layer and a bridging metal layer;

[0017] The first insulating layer is located on a side of the touch grid layer close to the substrate, the bridging metal layer is located on a 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 to the touch grid layer through the via hole;

[0018] The padding portion and the bridging metal layer are in the same layer structure.

[0019] Optionally, the touch grid layer includes: 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;

[0020] The orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the connecting electrode on the substrate.

[0021] Optionally, an orthographic projection of the elevated portion on the substrate is located within an orthographic projection of the connecting electrode on the substrate.

[0022] Optionally, at least a portion of a boundary of an orthographic projection of the elevated portion on the substrate overlaps with at least a portion of a boundary of an orthographic projection of the connecting electrode on the substrate.

[0023] Optionally, the raised portion is in a strip shape, and in a width direction of the raised portion, the width of the raised portion is smaller than the width of the connecting electrode overlapping with the raised portion;

[0024] Wherein, in the width direction of the raised portion, the boundary where the orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the connecting electrode on the substrate is located on the side where the orthographic projection of the raised portion on the substrate is closer to the first corner.

[0025] Optionally, when the plurality of first corners include a first sub-corner and a second sub-corner, the first sub-corner is arc-shaped;

[0026] A portion of the edge of the raised portion on a side of the orthographic projection of the raised portion on the substrate close to the first sub-corner portion is arc-shaped, and the arc direction of the side of the orthographic projection of the raised portion on the substrate close to the first sub-corner portion is parallel to the arc direction of the first sub-corner portion;

[0027] Alternatively, a portion of the edge of a side of the orthographic projection of the raised portion on the substrate close 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;

[0028] Alternatively, a portion of an edge of a side of an orthographic projection of the raised portion on the substrate close to the first corner portion is in a straight line shape.

[0029] Optionally, a portion of an edge of a side of an orthographic projection of the connection electrode overlapping the raised portion on the substrate close to the first sub-corner portion is arc-shaped;

[0030] Alternatively, a portion of an edge of a side of an orthographic projection of the connection electrode overlapping the raised portion on the substrate close 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.

[0031] Optionally, the orthographic projection of the raised 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 connecting electrode on the substrate, and the second projection portion is located outside the orthographic projection of the connecting electrode on the substrate;

[0032] The second projection portion is located on a side closer to the first corner.

[0033] Optionally, the raised portion is located on a side of the touch grid layer facing away from the substrate.

[0034] Optionally, the raised portion includes a light absorbing block or a light reflecting block.

[0035] According to another aspect of the present application, a display device is provided, comprising: a power supply component and a display panel, the display panel is the above-mentioned display panel, and the power supply component is used to supply power to the display panel.

[0036] In the embodiment of the present application, the touch grid layer and the padding portion can reduce the light output at a wide viewing angle on the side of the first light-emitting unit close to the padding portion, so that the light output at a wide viewing angle of the first light-emitting device in different directions is kept as consistent as possible. This can avoid the color shift of the display panel when displaying images in different directions, improve the light output uniformity of the display panel, and improve the color shift problem of the display panel.

[0037] In addition, since the orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the touch grid layer on the substrate, the influence of the raised portion on the front light output of the light-emitting unit can be reduced, further improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 is a schematic diagram of the structure of a display panel;

[0040] Figure 2 yes Figure 1 A schematic diagram of light emission of a display panel shown;

[0041] Figure 3 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0042] Figure 4 yes Figure 3 A schematic diagram of light emission of a display panel shown;

[0043] Figure 5 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0044] Figure 6 is a schematic diagram of the structure of a touch grid layer and a bridging metal layer provided in an embodiment of the present application;

[0045] Figure 7 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0046] Figure 8 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0047] Fig. 9 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0048] Fig.10is a schematic diagram of a distribution relationship between a raised portion and a first light-emitting unit provided in an embodiment of the present application;

[0049] Fig.11 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0050] Fig.12 is a schematic diagram of a distribution relationship between a connecting electrode and a first light-emitting unit provided in an embodiment of the present application;

[0051] Fig.13 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0052] Fig.14 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0053] Fig.15 yes Fig.13 A schematic diagram of light emission of a display panel shown;

[0054] Fig.16 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0055] Fig.17 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0056] Fig.18 It is a schematic diagram of the structure of another display panel provided in an embodiment of the present application.

[0057] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] Please refer to Figure 1 and Figure 2 , Figure 1 It is a schematic diagram of the structure of a display panel. Figure 2 yes Figure 1 As shown in the light emitting schematic diagram of the display panel, 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 (English: Flexible Multi Layer On Cell; abbreviated: FMLOC) located on the substrate 21 having the plurality of light emitting units 22.

[0059] Among them, the light-emitting unit 22 may include at least one of an organic light-emitting diode (OLED) and a quantum dot light-emitting diode (QLED). Multiple light-emitting units 22 may include light-emitting devices for emitting various colors of light. For example, multiple light-emitting units 22 include 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 that can emit various colors of light, 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 from the display panel 20 to realize the function of image display.

[0060] Part of the light emitted by the light-emitting unit 22 can be emitted to the outside of the display panel 20 in a direction perpendicular to the display surface of the display panel 20, and part of the light emitted by the light-emitting unit 22 at a large viewing angle can irradiate the touch structure 23. Since the material of the touch structure 23 includes metal, this part of the light cannot be emitted from the display panel 20. However, since the distances between the multiple light-emitting units 22 for emitting light of different colors and the touch structure 23 in the display panel 20 are different, the large viewing angle light output of different light-emitting units 22 is different, causing the display color of the display panel 20 to be different at different viewing angles, resulting in poor display effect of the display panel 20. Figure 2 As shown, the first light s1 emitted by the blue light emitting unit B can emit from the display panel 20, the second light s2 emitted by the blue light emitting unit B has the same emission angle as the first light s1, the red light emitting unit R and the green light emitting unit G can also emit light with the same emission angle as the first light s1, but among the multiple light beams, only the first light s1 can emit from the display panel 20.

[0061] This is because in the direction parallel to the surface of the substrate 21, the distance between one corner of the blue light emitting device B and the touch structure 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, resulting in a large amount of light emitted from the blue light emitting device B at a large viewing angle in at least one direction, and thus causing the problem of color deviation of the display panel 20. The light emitting angle may refer to the angle between the light emitted by the light emitting unit 22 and the normal of the light emitting surface of the display panel 20, and the normal of the light emitting surface of the display panel 20 may be perpendicular to the surface of the substrate 21.

[0062] The embodiments of the present application provide a display panel and a display device, which can solve some problems existing in the above-mentioned related technologies.

[0063] Please refer to Figure 3 and Figure 4 , Figure 3 is a schematic structural diagram of a display panel 10 provided in an embodiment of the present application, Figure 4 yes Figure 3 A schematic diagram of light emission of a display panel 10 is shown. According to one aspect of the present application, a display panel 10 is provided. The display panel 10 may include: a substrate 11 , a plurality of light emitting units 12 , a touch grid layer 13 and a padding portion 14 .

[0064] A plurality of light-emitting units 12 may be located on the substrate 11, and the plurality of light-emitting units 12 may be arranged in a direction parallel to the plate surface of the substrate 11. The plurality of light-emitting units 12 include 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. Exemplarily, the orthographic projection of the first light-emitting unit 121 on the substrate 11 is in the shape of 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, such as the light of the first color is blue light.

[0065] The touch grid layer 13 may be located on a side of the plurality of light emitting units 12 away from the substrate 11, and the touch grid layer 13 has a plurality of grid holes k1 corresponding to the plurality of light emitting units 12, and the orthographic projections of the light emitting units 12 on the substrate 11 are located within the orthographic projections of the corresponding grid holes k1 on the substrate 11. The orthographic projections of the light emitting units 12 on the substrate 11 and the orthographic projections of the touch grid layer 13 on the substrate 11 do not overlap with each other, so as to reduce the influence of the touch grid layer 13 on the front light output of the display panel 10.

[0066] The raised portion 14 may be located on a side of the plurality of light-emitting units 12 away from the substrate 11, and the orthographic projection of the raised portion 14 on the substrate 11 overlaps with the orthographic projection of the touch grid layer 13 on the substrate 11, and is distributed near at least one first corner. The raised portion 14 may be located on a side of the touch grid layer 13 close to the substrate 11, or the raised portion 14 may be located on a 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, so that 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 output of the first light-emitting unit 121 on the side close to the raised portion 14 can be reduced by the increased part of the touch grid layer 13, so that the large-angle light output of the light emitted by each first corner of the first light-emitting unit can be kept consistent as much as possible, so as to avoid the phenomenon of inconsistent large-angle light output of the first light-emitting unit 121 in different directions. In this way, the color shift phenomenon of the display panel 10 in different directions when displaying pictures can be avoided, and the display effect of the display panel 10 can be improved.

[0067] When the raised portion 14 is located on the side of the touch grid layer 13 away from the substrate 11 , the raised portion 14 can be used to adjust the light output of the first light emitting unit 121 at a wide viewing angle to improve the color shift problem of the display panel 10 .

[0068] In summary, the embodiment of the present application provides a display panel, including a substrate, a plurality of light-emitting units, a touch grid layer and a padding portion, and the touch grid layer and the padding portion can reduce the light output at a large viewing angle on the side of the first light-emitting unit close to the padding portion, so that the light output at a large viewing angle of the first light-emitting device in different directions is kept as consistent as possible. This can avoid the phenomenon of color shift when the display panel displays images in different directions, improve the light output uniformity of the display panel, and improve the color shift problem of the display panel.

[0069] In addition, since the orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the touch grid layer on the substrate, the influence of the raised portion on the front light output of the light-emitting unit can be reduced, further improving the display effect of the display panel.

[0070] Please refer to Figure 3In an optional embodiment, the plurality of light-emitting units 12 in the display panel 10 may further include: a plurality of second light-emitting units 122. Here, the orthographic projection of the second light-emitting unit 122 on the substrate 11 may have a plurality of second corners. Exemplarily, the second light-emitting unit 122 may 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 orthographic projection of the second light-emitting unit 122 on the substrate 11 is also a quadrilateral. That is, the orthographic projection of the second light-emitting unit 122 on the substrate 11 may have four second corners.

[0071] In the present application, a plurality of first corners in the orthographic projection of a first light-emitting unit 121 in the display panel 10 on the substrate 11 may correspond one-to-one to a plurality of second light-emitting units 122. For example, four first corners in the orthographic projection of a first light-emitting unit 121 on the substrate 11 may correspond one-to-one to four second light-emitting units 122. Here, the orthographic projection of the second light-emitting unit 122 on the substrate 11 may be distributed relative to the corresponding first corners. To this end, a first light-emitting unit 121 may be distributed in an area surrounded by a plurality of second light-emitting units 122 corresponding to the plurality of first corners.

[0072] It should be noted that the plurality of light-emitting units 12 in the display panel 10 may be arranged in a blue diamond pixel arrangement. That is, the light-emitting units 12 arranged adjacent to each other in the display panel 10 have a pair of relatively distributed corners in the orthographic projection on the substrate 11. Exemplarily, the second light-emitting unit 122 has a second corner in the orthographic projection on the substrate 11, which may be arranged opposite to the corresponding first corner.

[0073] In the present application, the multiple first corners in the orthographic projection of the first light-emitting unit 121 on the substrate 11 may include: a first sub-corner b1 and a second sub-corner b2. Here, the minimum distance x1 between the orthographic projection of the second light-emitting unit 122 on the substrate 11 corresponding to the first sub-corner b1 and the first sub-corner b1 is greater than the minimum distance x2 between the orthographic projection of the second light-emitting unit 122 on the substrate 11 corresponding to the second sub-corner b2 and the second sub-corner b2. For example, the four first corners in the orthographic projection of the first light-emitting unit 121 on the substrate 11 may include one first sub-corner b1 and three second sub-corners b2.

[0074] The orthographic projection of the elevated portion 14 in the display panel 10 on the substrate 11 may be distributed near the location of the first sub-corner portion b1.

[0075] In this case, since the first sub-corner b1 is far from the adjacent second light-emitting unit 122, and the second sub-corner b2 is close to the adjacent second light-emitting unit 122, the light emission of the first light-emitting unit 121 at the location of the first sub-corner b1 is different from the light emission of the second light-emitting unit 122 at the location of the second sub-corner b2. Therefore, after the orthographic projection of the raised portion 14 on the substrate 11 is distributed close to the location of the first sub-corner b1, the shielding ability of the light emitted by the first light-emitting unit 121 from the location of the first sub-corner b1 can be improved by the raised portion 14 or the part of the touch grid layer 13 overlapping with the stacked portion 14, so as to reduce the large-angle light emission of the first light-emitting unit 121 from the location of the first sub-corner b1, thereby making the large-angle light emission of the first light-emitting unit 121 from the location of the first sub-corner b1 as consistent as possible with the large-angle light emitted from the second sub-corner b2.

[0076] Optionally, the first sub-corner b1 is arc-shaped, and the second sub-corner b2 is sharp or arc-shaped. Wherein, when 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 that of the second sub-corner b2.

[0077] Please refer to Figure 4 In an optional embodiment, the padding portion 14 may 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 padding portion 14 may be disposed on the side of the touch grid layer 13 close to the substrate 11 to increase the distance between a portion of the touch grid layer 13 and the first light emitting unit 121 perpendicular to the substrate 11, thereby reducing the light output of the first light emitting unit 121 at a wide viewing angle close to the padding portion 14 through the padding of the touch grid layer 13. In this way, the light output uniformity of the display panel 10 may be improved, and the color shift problem of the display panel 10 may be improved.

[0078] from Figure 4 It can be seen that the first light s1 emitted by the first light emitting unit 121 irradiates the touch grid layer 13 located on the side of the elevated portion 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 elevated portion 14 can block the first light s1 from emitting from the display panel 10.

[0079] That is, the distance between the part of the grid touch layer and the light emitting unit 12 on the panel perpendicular to the substrate 11 is increased by the padding portion 14, so that the light with a larger light emitting angle that may originally be emitted from the display panel 10 is irradiated on the touch grid layer 13 located on the side of the padding portion 14 away from the substrate 11. The raised touch grid layer 13 can prevent at least part of the light emitted by the first light emitting unit 121 (such as: the first light s1) from emitting the display panel 10, so that the light emitting uniformity of the display panel 10 can be improved, and the color deviation problem of the display panel 10 can be improved. Among them, the light emitting angle can refer to the angle between the light emitted by the light emitting unit 12 and the normal of the light emitting surface of the display panel 10, and the normal of the light emitting surface of the display panel 10 can be perpendicular to the board surface of the substrate 11.

[0080] It should be noted that Figure 4 In order to clearly illustrate the direction of the light path of the light emitted by the light emitting unit 12 to the light blocking structure, only the light path of part of the light emitted by the light emitting unit 12 is shown, which does not represent the amount of light emitted by the light emitting unit 12 from the direction shown in the figure.

[0081] Please refer to Figure 5 and Figure 6 , Figure 5 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application, Figure 6 is a schematic structural diagram of a touch grid layer 13 and a bridging metal layer 16 provided in an embodiment of the present application. In an optional implementation, the display panel 10 may further include a first insulating layer 15 and a bridging metal layer 16 .

[0082] The first insulating layer 15 is located on a side of the touch grid layer 13 close to the substrate 11, and the bridging metal layer 16 is located on a 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 bridging metal layer 16, and the first insulating layer 15 has a via hole, and the bridging metal layer 16 is electrically connected to the touch grid layer 13 through the via hole to realize the touch function of the touch grid layer 13.

[0083] The padding portion 14 and the bridging metal layer 16 may be in the same layer structure, and the padding portion 14 and the bridging metal layer 16 may be in the same layer structure formed by the same patterning process, thereby simplifying the manufacturing process of the display panel 10 and reducing the thickness of the display panel 10 .

[0084] It should be noted that the first insulating layer 15 located 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 on the same layer as the bridging metal layer 16 away from the substrate 11, the portion of the first insulating layer 15 located on the raised portion 14 will also bulge outward, so that the height of the portion of the touch grid layer 13 located on the side of this first insulating layer 15 away from the substrate 11 is higher, thereby achieving a raising effect on the portion of the touch grid layer 13 overlapping with the raised portion 14.

[0085] In an exemplary embodiment, the display panel 10 may include a touch structure, and the touch structure may include a first touch electrode layer and a second touch electrode layer, wherein one touch electrode layer may be a touch grid layer 13, and the other touch electrode layer may be a bridging metal layer 16, and a patterned organic insulating layer formed by using a grayscale mask as described above is provided between the two touch electrode layers, and vias are provided on the patterned organic insulating layer to achieve connection between the touch grid layer 13 and the bridging metal layer 16, thereby forming a self-capacitive touch electrode. Furthermore, the touch structure may further include a protective layer covering the touch grid layer 13 on the side away from the display substrate, which protects the touch grid layer 13, and may be an organic material.

[0086] Please refer to Figure 7 , Figure 7 1 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application. In an optional implementation, the touch grid layer 13 may 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 are used to enclose a plurality of grid holes k1, and the grid electrodes 131 and the connecting electrodes 132 are in the same layer. The orthographic projection of the raised portion 14 on the substrate 11 may overlap with 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 deviation problem of the display panel 10.

[0087] Please refer to Figure 7 In an optional 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 stacking 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.

[0088] Please refer to Figure 7 In an optional implementation, at least a portion of the boundary of the orthographic projection of the raised portion 14 on the substrate 11 may overlap with at least a portion of the boundary of the orthographic projection of the connecting electrode 132 on the substrate 11 .

[0089] Please refer to Figure 7 In an optional embodiment, the raised portion 14 may be strip-shaped, and in the width direction of the raised portion 14, the width of the raised portion 14 may be smaller than the width of the connection electrode 132 overlapping with the raised portion 14; wherein, in the width direction of the raised portion 14, the boundary where the orthographic projection of the raised portion 14 on the substrate 11 overlaps with the orthographic projection of the connection electrode 132 on the substrate 11 is located on the side where the orthographic projection of the raised portion 14 on the substrate 11 is closer to the first corner. In this way, while reducing the light output of the first light-emitting unit 121 through the raised portion 14, the influence of the additional raised portion 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 improve the color deviation problem of the display panel 10.

[0090] Please refer to Figure 8 and Fig. 9 , Figure 8 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application, Fig. 9 It is a structural schematic diagram of another display panel 10 provided in an embodiment of the present application. In an optional implementation, when the multiple first corners in the first light-emitting unit 121 include: a first sub-corner b1 and a second sub-corner b2, the appearance of the first sub-corner b1 can be arc-shaped.

[0091] In this case, the edge of the portion of the orthographic projection of the raised portion 14 on the substrate 11 close to the first sub-corner b1 is arc-shaped, and the arc direction of the side of the orthographic projection of the raised portion 14 on the substrate 11 close to the first sub-corner b1 is parallel to the arc direction of the edge of the first sub-corner b1. That is, the edge of the portion of the orthographic projection of the raised portion 14 on the substrate 11 close 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.

[0092] Or, if Fig.10 As shown, Fig.10 It is a schematic diagram of the distribution relationship between a raised portion and a first light-emitting unit provided in an embodiment of the present application. The edge of the part of the side of the orthographic projection of the raised portion 14 on the substrate 11 close to the first sub-corner b1 includes a plurality of first line segments L1, and the plurality of first line segments can be distributed around L1 around the first sub-corner b1. Here, the plurality of first line segments can approximately form an arc around L1, and the direction of the arc formed by the plurality of first line segments around L1 can be approximately parallel to the arc direction of the first sub-corner b1.

[0093] like Figure 7As shown, a portion of the edge of the orthographic projection of the raised portion 14 on the substrate 11 close to the first sub-corner portion b1 may also be in a straight line shape.

[0094] Please refer to Fig.11 , Fig.11 It is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application. In an optional implementation, a portion of the edge of the positive projection of the connecting electrode 132 overlapping the raised portion 14 on the substrate 11 close to the first sub-corner b1 may be arc-shaped.

[0095] Alternatively, please refer to Fig.12 , Fig.12 : is a schematic diagram of the distribution relationship between a connecting electrode and a first light-emitting unit provided in an embodiment of the present application. The partial edge of the positive projection of the connecting electrode 132 overlapping the raised portion 14 on the substrate 11 close to the first sub-corner b1 may include a plurality of second line segments L2. The plurality of second line segments may be distributed around L1 around the first sub-corner b1. Here, the plurality of second line segments may approximately form an arc around L2, and the direction of the arc formed by the plurality of second line segments around L2 may be approximately parallel to the arc direction of the second sub-corner b1.

[0096] In this way, the partial edge of the connecting electrode 132 overlapping with the raised portion 14 on the substrate 11, which is close to the first corner 1, is similar in shape to the edge of the first corner 1 in the orthographic projection of the first light-emitting unit 121 on the substrate 11, which can further improve the uniformity of the light output of the first light-emitting unit 121 at different viewing angles.

[0097] In this case, if Fig.11 As shown, among the multiple grid holes k1 surrounded by the touch grid layer 13, the grid hole k1 corresponding to the first light-emitting unit 121 has a positive projection on the substrate 11: a first vertex a1 adjacent to the first sub-corner b, and a second vertex a2 adjacent to the second sub-corner b2. Here, the shape of the first vertex a1 can also be an arc. Because the arc direction of the first vertex a1 is parallel to the arc direction of the first corner 1, the distance between the first vertex a1 and the first corner 1 can be approximately equal to the distance between the boundary of the positive projection of the first light-emitting unit 121 on the substrate 11 and the boundary of the positive projection of the corresponding grid hole k1 on the substrate 11, and the distance between the first vertex a1 and the first corner 1 can be greater than the minimum distance between the second vertex a2 and the second corner b2.

[0098] Please refer to Fig.13 , Fig.14 and Fig.15 , Fig.13 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application, Fig.14is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application, Fig.15 yes Fig.13 In the light emitting schematic diagram of the display panel 10 shown in the figure, in an optional embodiment, the orthographic projection of the raised portion 14 on the substrate 11 may include: a first projection portion t1 and a second projection portion t2, the first projection portion t1 is located inside 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; wherein the second projection portion t2 is located on a side closer to the first corner portion 1. Fig.15 It can be seen that the first light s1 emitted by the first light emitting unit 121 irradiates the elevated portion 14 . Since the elevated portion 14 is a light-proof film layer, the elevated portion 14 can block the first light s1 from emitting from the display panel 10 .

[0099] 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 smaller 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. The raised portion 14 blocks the light emitting path of the first light-emitting unit 121, so that light with a larger light emitting angle that may originally be emitted from the display panel 10 is irradiated on the raised portion 14. The raised portion 14 and the raised touch grid layer 13 can both prevent at least part of the light emitted by the first light-emitting unit 121 (such as the first light s1) from emitting from the display panel 10. In this way, the light emitting uniformity of the display panel 10 can be further improved, and the color deviation problem of the display panel 10 can be improved.

[0100] It should be noted that Fig.15 In order to clearly illustrate the direction of the light path of the light emitted by the light emitting unit 12 to the light blocking structure, only the light path of part of the light emitted by the light emitting unit 12 is shown, which does not represent the amount of light emitted by the light emitting unit 12 from the direction shown in the figure.

[0101] Please refer to Fig.14 In an optional implementation, the raised portion 14 may be in a strip shape, and 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 a range of 0.3 to 2. Exemplarily, 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.

[0102] That is, in the target direction, the ratio of the width of the orthographic projection of the elevated portion 14 on the substrate 11 to the width of the target portion of the touch grid layer 13 on the substrate 11 is in the range of 0.3 to 2, and the orthographic projection of the target portion of the touch grid layer 13 on the substrate 11 overlaps with the orthographic projection of the elevated portion 14 on the substrate 11; the target direction is the arrangement direction of the first vertex a1 at the location of the elevated portion 14 and the adjacent first corner 1.

[0103] Please refer to Fig.16 , Fig.16 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application. In an optional implementation, the raised portion 14 may be located on a side of the touch grid layer 13 facing away from the substrate 11 .

[0104] Optionally, the raised portion 14 includes a light absorbing block 141 or a light reflecting block 142. Exemplarily, the raised portion 14 includes a light absorbing block 141, and the orthographic projection of the light absorbing block 141 on the substrate 11 overlaps with the orthographic projection of the connecting electrode 132 of the touch grid layer 13 on the substrate 11.

[0105] from Fig.16 It can be seen that the first light s1 emitted by the first light emitting unit 121 irradiates 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 emitting from the display panel 10 .

[0106] That is, by adding a light absorbing block 141 on the side of the touch grid layer 13 facing away from the substrate 11, the light with a larger light output angle that may originally be emitted from the display panel 10 is irradiated on the light absorbing block 141. The light absorbing block 141 can prevent at least part of the light emitted by the first light-emitting unit 121 (such as the first light s1) from emitting from the display panel 10. In this way, the light output uniformity of the display panel 10 can be further improved, and the color deviation problem of the display panel 10 can be improved.

[0107] It should be noted that Fig.16 In order to clearly illustrate the direction of the light path of the light emitted by the light emitting unit 12 to the light blocking structure, only the light path of part of the light emitted by the light emitting unit 12 is shown, which does not represent the amount of light emitted by the light emitting unit 12 from the direction shown in the figure.

[0108] Please refer to Fig.17 , Fig.17It is a structural schematic diagram of another display panel 10 provided in an embodiment of the present application. In an exemplary implementation, the raised portion 14 includes a reflective block 142, and the display panel 10 also includes a first flat layer 17, and the first flat layer 17 is located between the touch grid layer 13 and the reflective block 142; the reflective block 142 is prism-shaped, and the size of the reflective block 142 on the side close to the substrate 11 is larger than the size of the reflective block 142 on the side away from the substrate 11, and the refractive index of the first flat layer 17 is greater than the refractive index of the reflective block 142.

[0109] from Fig.17 It can be seen that the first light s1 emitted by the light-emitting unit 12 enters the interior of the first flat layer 17 and irradiates the side wall of the reflective block 142, which is the interface between the first flat layer 17 and the reflective block 142. Since the refractive index of the first flat layer 17 is greater than the refractive index of the reflective block 142, the first light s1 is in a state of being emitted from a light-dense medium to a light-sparse medium. Based on the principle of total reflection, part of the first light s1 will be totally reflected at the interface between the reflective block 142 and the first flat layer 17, so that the light emission angle of the first light s1 emitted by the light-emitting unit 12 becomes smaller than that before it is irradiated to the light-blocking structure, and is emitted to the area directly opposite to the display panel 10, wherein the light emission angle may refer to the angle between the light emitted by the light-emitting unit 12 and the normal of the light emitting surface of the display panel 10, and the normal of the light emitting surface of the display panel 10 may be perpendicular to the substrate.

[0110] That is, the light with a larger light output angle that may originally be emitted from the display panel 10 is directed to the front side of the display panel 10 through the reflective block 142. The reflective block 142 can reduce the light output angle of at least part of the light (such as the first light s1) emitted by the first light emitting unit 121. In this way, the reflective block 142 has the following two functions: first, it reduces the light with a larger light output angle emitted by the first light emitting unit 121 to improve the light output uniformity of the display panel 10 and improve the color cast problem of the display panel 10; second, it increases the light output of the first light emitting unit 121 at a smaller light output angle, which can increase the light output from the front side of the display panel 10.

[0111] It should be noted that Fig.17 In order to clearly show the direction of the light path of the light irradiating to the photosensitive unit, only the light path of part of the light is shown, and the light path of this part of the light does not completely represent the amount of light emitted by the light-emitting unit 12 from the direction shown in the figure.

[0112] Please refer to Fig.18 , Fig.181 is a schematic diagram of the structure of another display panel 10 provided in an embodiment of the present application. In an optional implementation, the display panel 10 may further include a driving circuit 18, which is electrically connected to the light-emitting unit 12 and the touch grid layer 13, respectively. The display panel 10 may further include a driving circuit 18 located on the substrate 11, and the driving circuit 18 is electrically connected to the anode of the light-emitting unit 12, thereby providing an anode voltage to the anode. The cathode may provide a cathode voltage to multiple pixel structures on the display panel 10.

[0113] In an exemplary embodiment, the cathode may be a light-transmitting electrode, for example, the light-transmitting electrode may be made of a transparent conductive oxide material such as indium tin oxide (English: Indium Tin Oxide; abbreviated: ITO), indium zinc oxide (English: Indium Zinc Oxide; abbreviated: IZO), etc., which may increase the transmittance of the display panel 10. The anode may be made of at least one of copper (Cu), silver (Ag) and aluminum (Al).

[0114] The driving circuit 18 may include a driving transistor, and the material of the active layer in the driving transistor may include amorphous silicon (a-Si), polysilicon (LTPS or p-Si), or metal oxide. The driving transistor may be a low temperature polysilicon thin film transistor or a single crystal silicon thin film transistor.

[0115] In an exemplary embodiment, the raised portion 14 may be insulated from the driving circuit 18 , and the raised portion 14 may not have electrical properties.

[0116] Alternatively, in an exemplary embodiment, the raised portion 14 is electrically connected to the driving circuit 18 and the voltage is constant, so that unstable voltage on the raised portion 14 can be avoided to generate parasitic capacitance with the touch grid layer 13 and affect the touch sensitivity of the touch grid layer 13.

[0117] In summary, the embodiment of the present application provides a display panel, including a substrate, a plurality of light-emitting units, a touch grid layer and a padding portion, and the touch grid layer and the padding portion can reduce the light output at a large viewing angle on the side of the first light-emitting unit close to the padding portion, so that the light output at a large viewing angle of the first light-emitting device in different directions is kept as consistent as possible. This can avoid the phenomenon of color shift when the display panel displays images in different directions, improve the light output uniformity of the display panel, and improve the color shift problem of the display panel.

[0118] In addition, since the orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the touch grid layer on the substrate, the influence of the raised portion on the front light output of the light-emitting unit can be reduced, further improving the display effect of the display panel.

[0119] The embodiment of the present application further provides a display device, the display device comprising: a power supply component and a display panel, the power supply component is used to supply power to the display panel. The display panel can be the display panel in any of the above embodiments.

[0120] The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.

[0121] The term "at least one of A and B" in this application is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, at least one of A and B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0122] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0123] In the present application, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0124] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A plurality of light-emitting units, the plurality of light-emitting units are located on the substrate, the plurality of light-emitting units include a plurality of first light-emitting units, and the orthographic projection of the first light-emitting unit on the substrate has a plurality of first corners; A touch grid layer, the touch grid layer is located on a side of the plurality of light-emitting units away from the substrate, the touch grid layer has a plurality of grid holes corresponding to the plurality of light-emitting units, and the orthographic projections of the light-emitting units on the substrate are located within the orthographic projections of the corresponding grid holes on the substrate; And, the elevated portion is located on a side of the plurality of light-emitting units away from the substrate, the orthographic projection of the elevated portion on the substrate overlaps with the orthographic projection of the touch grid layer on the substrate, and is distributed near at least one of the first corners.

2. The display panel according to claim 1, characterized in that: The plurality of light-emitting units further include a plurality of second light-emitting units; a plurality of first corners in an orthographic projection of one of the first light-emitting units on the substrate correspond one to one with a plurality of the second light-emitting units, and the orthographic projection of the second light-emitting unit on the substrate is distributed relatively to the corresponding first corners; The multiple first corners include: a first sub-corner and a second sub-corner, wherein 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; The orthographic projection of the elevated portion on the substrate is distributed close to the location of the first sub-corner.

3. The display panel according to claim 2, characterized in that: The first sub-corner portion has an arc shape, and the second sub-corner portion has a sharp angle or an arc shape; Among them, when the first sub-corner and the second sub-corner are both arc-shaped, the curvature of the first sub-corner is greater than the curvature of the second sub-corner.

4. The display panel according to claim 1, characterized in that: The raised portion is located on a side of the touch grid layer close to the substrate.

5. The display panel according to claim 4, characterized in that: The display panel further includes a first insulating layer and a bridging metal layer; The first insulating layer is located on a side of the touch grid layer close to the substrate, the bridging metal layer is located on a 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 to the touch grid layer through the via hole; The padding portion and the bridging metal layer are in the same layer structure.

6. The display panel according to any one of claims 1 to 5, characterized in that: The touch grid layer comprises: a plurality of grid electrodes and a connecting electrode for connecting two adjacent grid electrodes, wherein the plurality of grid electrodes are used to enclose a plurality of grid holes; The orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the connecting electrode on the substrate.

7. The display panel according to claim 6, characterized in that: The orthographic projection of the raised portion on the substrate is located within the orthographic projection of the connecting electrode on the substrate.

8. The display panel according to claim 7, characterized in that: At least a portion of a boundary of an orthographic projection of the raised portion on the substrate overlaps with at least a portion of a boundary of an orthographic projection of the connecting electrode on the substrate.

9. The display panel according to claim 8, characterized in that: The raised portion is in a strip shape, and in the width direction of the raised portion, the width of the raised portion is smaller than the width of the connecting electrode overlapping with the raised portion; Wherein, in the width direction of the raised portion, the boundary where the orthographic projection of the raised portion on the substrate overlaps with the orthographic projection of the connecting electrode on the substrate is located on the side where the orthographic projection of the raised portion on the substrate is closer to the first corner.

10. The display panel according to claim 6, characterized in that: In the case where the plurality of first corners include a first sub-corner and a second sub-corner, the first sub-corner is arc-shaped; A portion of the edge of the raised portion on a side of the orthographic projection of the raised portion on the substrate close to the first sub-corner portion is arc-shaped, and the arc direction of the side of the orthographic projection of the raised portion on the substrate close to the first sub-corner portion is parallel to the arc direction of the first sub-corner portion; Alternatively, a portion of the edge of a side of the orthographic projection of the raised portion on the substrate close 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, a portion of an edge of a side of an orthographic projection of the raised portion on the substrate close to the first corner portion is in a straight line shape.

11. The display panel according to claim 10, characterized in that: The edge of a portion of the orthographic projection of the connection electrode overlapping the raised portion on the substrate close to the first sub-corner portion is arc-shaped; Alternatively, a portion of an edge of a side of an orthographic projection of the connection electrode overlapping the raised portion on the substrate close 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 according to claim 6, characterized in that: The orthographic projection of the raised 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 connecting electrode on the substrate, and the second projection portion is located outside the orthographic projection of the connecting electrode on the substrate; The second projection portion is located on a side closer to the first corner.

13. The display panel according to claim 1, characterized in that: The raised portion is located at a side of the touch grid layer facing away from the substrate.

14. The display panel according to claim 13, characterized in that: The raised portion includes a light absorbing block or a light reflecting block.

15. A display device, characterized in that: The display device comprises: a power supply component and a display panel, the display panel is the display panel according to any one of claims 1 to 14, and the power supply component is used to supply power to the display panel.

Images