Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device, and relate to the display field, and are used for reducing the reflectivity of the display panel. The display panel comprises: a display area comprising a light-transmitting area and a non-light-transmitting area; a back plate comprising a bonding portion located in the non-light-transmitting area; a light-emitting element located on one side of the back plate, comprising a first part and a second part, the first part comprising an electrode, the electrode being electrically connected with the bonding portion, the first part being located in the non-light-transmitting area, and at least part of the second part being located in the light-transmitting area; and an anti-reflection layer located on a side of the light-emitting element away from the back plate, the anti-reflection layer covering the electrode in a direction perpendicular to a plane in which the back plate is located.

Description

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

[0002] Light emitting diode (LED) display panel is widely used in various transparent display fields because it does not need to set a whole polaroid and a whole cathode, and can make the screen body have higher light transmittance.

[0003] However, in the existing structure of the display panel, the reflectivity of the internal metal structure is high, and the external ambient light incident to this part of the metal structure will be transmitted and reflected by the light emitting diode, thereby affecting the light emitting color and light emitting brightness of the light emitting diode, and affecting the display effect.

[0004] Therefore, the embodiments of the present application provide a display panel and a display device to reduce the reflectivity of the display panel.

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

[0006] a display area comprising a light-transmitting area and a non-light-transmitting area;

[0007] a back plate comprising a bonding part located in the non-light-transmitting area;

[0008] a light emitting element located on one side of the back plate, comprising a first part and a second part, the first part comprising an electrode, the electrode being electrically connected to the bonding part, the first part being located in the non-light-transmitting area, and at least part of the second part being located in the light-transmitting area;

[0009] an anti-reflection layer located on the side of the light emitting element away from the back plate, the anti-reflection layer covering the electrode in the direction perpendicular to the plane where the back plate is located.

[0010] In another aspect, the embodiments of the present application provide a display device comprising the above display panel.

[0011] One of the above technical solutions has the following beneficial effects:

[0012] In the embodiments of the present application, by setting the anti-reflection layer, the electrode of the light emitting element can be shielded by the anti-reflection layer, the reflection of the electrode of the light emitting element to the external ambient light is reduced, and the influence of the reflected light on the display is reduced.

[0013] Furthermore, the structure of the light emitting element is further adjusted in the embodiments of the present application to match the anti-reflection layer to achieve better results. ​​​

[0014] In the related art, the entire light emitting element is placed in the bonding area outside the light transmission area. If the anti-reflection layer is directly arranged on the basis of this design, the anti-reflection layer will greatly shield the light emitting area of the light emitting element, so that the actual light emitting area becomes very small, thereby seriously affecting the normal light emission of the light emitting element. At this time, if the light emitting element is still required to have sufficient actual light emitting area after being shielded by the anti-reflection layer, the light emitting element needs to be lengthened, and the size of the light emitting element in the arrangement direction of the two electrodes needs to be increased, but this will lead to an increase in the size of the bonding area, so that the bonding area occupies the area of the original light transmission area, and the area of the light transmission area is greatly reduced. Since the size of the light transmission area in the display panel directly determines the light transmittance of the screen body, directly adding the anti-reflection layer on the basis of the original design of the light emitting element will greatly affect the light transmission performance of the display panel.

[0015] In the embodiment of the present application, considering that the film layer structures other than the electrodes in the light emitting element are all light transmission film layers, the position of the light emitting element is adjusted in the embodiment of the present application, that is, the first part of the light emitting element provided with the electrodes is placed in the non-light transmission area, and the second part of the light emitting element not provided with the electrodes is placed in the light transmission area. After the anti-reflection layer is arranged, whether the light emitting element is widened or lengthened to increase the actual light emitting area of the light emitting element after being shielded by the anti-reflection layer, the original design of the light transmission area will not be affected, and thus the light transmittance of the display panel will not be affected.

[0016] Moreover, based on the design method of the light emitting element in the embodiment of the present application, only the first part of the light emitting element is located in the non-light transmission area, and the light emitting element does not need to be located in the non-light transmission area, so that the area occupied by the light emitting element in the non-light transmission area can be greatly reduced, and under the condition that the area of the display area is constant, more areas can be divided into light transmission areas to further increase the light transmission performance of the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. 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.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a display panel in the related art;

[0019] Figure 2 FIG. 3 is a structural schematic diagram of a display panel in the related art; Figure 1 FIG. 4 is a sectional view along the A1-A2 direction;

[0020] Figure 3 FIG. 7 is a structural diagram of a display panel provided by the embodiment of the present application;

[0021] Figure 4 is a partial enlarged schematic view of the display panel; Figure 3

[0022] Figure 5 is a sectional view along the direction of B1-B2; Figure 3

[0023] Figure 6 is a sectional view along the direction of C1-C2; Figure 3

[0024] Figure 7 is a region division schematic view of the display panel provided by the embodiment of the present application;

[0025] Figure 8 is another partial contrast schematic view of the display panel provided by the embodiment of the present application;

[0026] Figure 9 is a structural schematic view of the light-transmitting support provided by the embodiment of the present application;

[0027] Figure 10 is another structural schematic view of the display panel provided by the embodiment of the present application;

[0028] Figure 11 is a sectional view along the direction of D1-D2; Figure 10

[0029] Figure 12 is a arrangement schematic view of the light-emitting element provided by the embodiment of the present application;

[0030] Figure 13 is another arrangement schematic view of the light-emitting element provided by the embodiment of the present application;

[0031] Figure 14 is still another arrangement schematic view of the light-emitting element provided by the embodiment of the present application;

[0032] Figure 15 is yet another arrangement schematic view of the light-emitting element provided by the embodiment of the present application;

[0033] Figure 16 is a structural schematic view of the light-emitting element provided by the embodiment of the present application;

[0034] Figure 17 is another structural schematic view of the light-emitting element provided by the embodiment of the present application;

[0035] Figure 18 is still another partial structural schematic view of the display panel provided by the embodiment of the present application;

[0036] ​​​​Figure 19 This is a schematic diagram of a display device provided in an embodiment of the present invention.

Detailed Implementation Methods

[0037] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0039] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0040] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In one related design of the display panel, such as Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of a display panel structure in related technologies. Figure 2 for Figure 1 A cross-sectional view along the A1-A2 direction shows that the display panel includes a light-transmitting area 101 and a light-blocking area 102, wherein the light-blocking area 102 includes a wiring area 103 and a bonding area 104.

[0042] The display panel also includes a back panel 105, which includes a bonding portion 106 located in the bonding area 104. Furthermore, the display panel also includes a black adhesive 107 located on one side of the back panel 105 and in the non-transparent area 102. The black adhesive 107 is used to shield the metal structure within the non-transparent area 102; however, in practical applications, the black adhesive 107 does not completely cover the non-transparent area 102. See [reference needed]. Figure 2 A cutout needs to be made on the black adhesive 107 to expose the bonding part 106 so that the bonding part 106 can be connected to the electrode 109 of the light-emitting element 108 later.

[0043] Based on the above design, the black adhesive 107 cannot shield the electrode 109 of the light emitting element 108, so when external ambient light is incident on the display panel, part of the light will be reflected by the electrode 109 of the light emitting element 108, thereby affecting the light emitting color and light emitting brightness of the light emitting element 108.

[0044] To this end, the embodiment of the present application provides a display panel, as shown in Figures 3 to 6 Figure 3 A structural diagram of the display panel provided by the embodiment of the present application, Figure 4 Figure 3 A partial enlarged schematic view, Figure 5 Figure 3 A sectional view along the B1-B2 direction, Figure 6 Figure 3 A sectional view along the C1-C2 direction, the display panel includes a display area 1, the display area 1 includes a light-transmitting area 2 and a non-light-transmitting area 3.

[0045] The display panel further includes a back plate 4, the back plate 4 includes a bonding part 5 located in the non-light-transmitting area 3.

[0046] The display panel further includes a light emitting element 6 located on one side of the back plate 4, in the embodiment of the present application, the light emitting element 6 can be a millimeter-level light emitting diode (Mini Light Emitting Diode, Mini-LED) or a micrometer-level light emitting diode (Micro Light Emitting Diode, Micro-LED). The light emitting element 6 includes a first part 7 and a second part 8, the first part 7 includes an electrode 9, the electrode 9 is electrically connected with the bonding part 5, the first part 7 is located in the non-light-transmitting area 3, and at least part of the second part 8 is located in the light-transmitting area 2.

[0047] Among them, the electrode 9 of the light emitting element 6 includes a positive electrode 12 and a negative electrode 13, corresponding to which, the bonding part 5 includes a first bonding part 14 electrically connected with the positive electrode 12 and a second bonding part 15 electrically connected with the negative electrode 13. The back plate 4 further includes a driving circuit and a negative power supply line located in the non-light-transmitting area 3, the driving circuit is electrically connected with the positive electrode 12 of the light emitting element 6 through the first bonding part 14 to provide a driving voltage to the positive electrode 12 of the light emitting element 6, and the negative power supply signal line is electrically connected with the negative electrode 13 of the light emitting element 6 through the second bonding part 15 to provide a negative power supply voltage to the negative electrode 13 of the light emitting element 6.

[0048] The display panel further includes an anti-reflection layer 10, the anti-reflection layer 10 is located on the side of the light emitting element 6 away from the back plate 4, and in the direction perpendicular to the plane where the back plate 4 is located, the anti-reflection layer 10 covers the electrode 9. Among them, the anti-reflection layer 10 in the embodiment of the present application can include black light shielding or light absorbing material.

[0049] ​​​​In addition, the display panel further comprises black glue 11, the black glue 11 is located in the non-light-transmitting area 3, and the black glue 11 exposes the bonding part 5, so that the bonding part 5 can be connected with the electrode 9 of the light emitting element 6 subsequently.

[0050] In the embodiment of the present application, by arranging the anti-reflection layer 10, the electrode 9 of the light emitting element 6 can be shielded by the anti-reflection layer 10, the reflection of the electrode 9 of the light emitting element 6 to the external environment light is reduced, and the influence of the reflected light on the display is further reduced.

[0051] Furthermore, the structure of the light emitting element 6 is further adjusted in the embodiment of the present application to cooperate with the anti-reflection layer 10 to achieve better results.

[0052] As can be seen from the foregoing, in the related art, the entire light emitting element 108 is placed in the binding area 104 outside the light-transmitting area 101. If the anti-reflection layer 10 is directly arranged on the basis of this design, the anti-reflection layer 10 will greatly shield the light emitting area of the light emitting element 108, so that the actual light emitting area of the light emitting element 108 becomes very small, and the normal light emission of the light emitting element 6 is seriously affected. At this time, if the light emitting element 108 is still required to have sufficient actual light emitting area after being shielded by the anti-reflection layer 10, the light emitting element 108 needs to be lengthened, and the size of the light emitting element 108 in the arrangement direction of the two electrodes 109 needs to be increased, but this will cause the size of the binding area 104 to increase, so that the binding area 104 occupies the area of the original light-transmitting area 101, and the area of the light-transmitting area 101 is greatly reduced. Since the size of the light-transmitting area 101 in the display panel directly determines the light transmittance of the screen body, directly adding the anti-reflection layer 10 on the basis of the original design of the light emitting element 108 will greatly affect the light transmittance of the display panel.

[0053] In the embodiment of the present application, considering that the film layer structures except the electrode 9 in the light emitting element 6 are all light-transmitting film layers, the position of the light emitting element 6 is adjusted in the embodiment of the present application, the first part 7 provided with the electrode 9 in the light emitting element 6 is placed in the non-light-transmitting area 3, and the second part 8 not provided with the electrode 9 is placed in the light-transmitting area 2. After the anti-reflection layer 10 is arranged, whether the light emitting element 6 is widened or lengthened to increase the actual light emitting area of the light emitting element 6 after being shielded by the anti-reflection layer 10, the original design of the light-transmitting area 2 will not be affected, and thus the light transmittance of the display panel will not be affected.

[0054] Furthermore, based on the design method of the light emitting element 6 in the embodiment of the present application, only the first part 7 of the light emitting element 6 is located in the non-light-transmitting area 3, and the light emitting element 6 does not need to be located in the non-light-transmitting area 3, so that the area occupied by the light emitting element 6 in the non-light-transmitting area 3 can be greatly reduced. Under the condition that the area of the display area 1 is constant, more areas can be divided into the light-transmitting area 2 to further increase the light transmittance of the display panel.

[0055] It should be noted that, as Figure 7 shown, Figure 7 A region division schematic diagram of the display panel provided by the embodiment of the present application, the non-light-transmitting region 3 in the embodiment of the present application can include a bonding region 16 and a wiring region 17, the bonding portion 5 is located in the bonding region 16, the bonding region 16 is used to realize the connection of the electrode 9 of the light-emitting element 6 and the bonding portion 5, and the wiring region 17 is used to set a track structure such as a power signal line.

[0056] In a feasible implementation manner, referring again to Figure 3 , the anti-reflection layer 10 is located in the non-light-transmitting region 3, so as to avoid the anti-reflection layer 10 from shielding the light-transmitting region 2, thereby affecting the light transmittance of the display panel and the light emission of the second part 8 of the light-emitting element 6.

[0057] In a setting manner, the anti-reflection layer 10 can be a continuous film layer structure covering the entire non-light-transmitting region 3, at this time, the anti-reflection layer 10 can shield the metal structure in the non-light-transmitting region 3 to a greater extent, thereby further reducing the reflection phenomenon of the non-light-transmitting region 3. Alternatively, in another setting manner, the anti-reflection layer 10 can also be a plurality of block film layer structures, the anti-reflection layer 10 does not cover the entire non-light-transmitting region 3, but locally covers the first part 7 of the light-emitting element 6.

[0058] In a feasible implementation manner, referring to Figure 3 , the first part 7 of at least part of the light-emitting element 6 is located on one side of the second part 8. That is, both of the electrodes 9 of the light-emitting element 6 are arranged on the same side of the light-emitting element 6, compared with the symmetrical design that both of the electrodes 9 are arranged on both sides of the light-emitting element 6, this kind of manner is to adopt an asymmetrical design for the electrodes 9 of the light-emitting element 6.

[0059] Considering the influence of process errors and other factors, if the anti-reflection layer 10 is to realize full coverage of the electrode 9 to reduce the influence of reflected light on display to a greater extent, the anti-reflection layer 10 needs to be expanded outward by a certain distance from the electrode 9 in the direction perpendicular to the plane where the back plate 4 is located.

[0060] From one point of view, if the width of the non-light-transmitting region 3 between the adjacent two light-transmitting regions 2 is to be reduced, the electrode 9 and the light-transmitting region 2 need to be arranged closer. At this time, if both of the electrodes 9 of the light-emitting element 6 are located on both sides of the second part 8, both sides of the light-emitting element 6 need to be provided with the anti-reflection layer 10, and then both sides of the anti-reflection layer 10 may shield the light-transmitting region 2 when expanding outward from the electrode 9. The above setting manner arranges both of the electrodes 9 on the same side of the light-emitting element 6, so that only one side of the anti-reflection layer 10 needs to be arranged, compared with both sides of the anti-reflection layer 10, the anti-reflection layer 10 can reduce the shielding of the light-transmitting region 2 when expanding outward.

[0061] Or, in other words, if the light emitting element 6 is to be extended out of the anti-reflective layer 10 to avoid blocking the light transmission area 2, the electrode 9 needs to be spaced apart from the light transmission area 2 at a relatively large distance. At this time, if the two electrodes 9 of the light emitting element 6 are respectively located on both sides of the second part 8, the light emitting element 6 needs to be extended out at a relatively large distance on both sides of the light transmission area 2, resulting in a relatively large width of the non-light transmission area 3 between the adjacent two light transmission areas 2. The above arrangement can avoid affecting the width of the non-light transmission area 3 between the adjacent two light transmission areas 2 by arranging the two electrodes 9 on the same side of the light emitting element 6, so that the electrode 9 is only spaced apart from the light transmission area 2 at a relatively large distance on one side.

[0062] Further, referring again to Figure 3 , the first part 7 and the second part 8 are arranged along a first direction x, the first part 7 includes two electrodes 9, and the two electrodes 9 are arranged along a second direction y, the first direction x and the second direction y are respectively parallel to the plane on which the back plate 4 is located, and the first direction x intersects the second direction y.

[0063] As shown in Figure 8 , Figure 8 is another partial contrast schematic diagram of the display panel provided by the embodiment of the present application. When the two electrodes 9 of the light emitting element 6 are located on the same side of the second part 8, the arrangement direction of the two electrodes 9 intersects the arrangement direction of the first part 7 and the second part 8, which can reduce the size of the first part 7 of the light emitting element 6 in the first direction x. For the two light transmission areas 2 adjacent in the first direction x, the non-light transmission area 3 between the two light transmission areas 2 does not need to be set too wide to accommodate the first part 7. This design can reduce the area of the non-light transmission area 3, increase the proportion of the light transmission area 2 in the display area 1, and improve the light transmission rate.

[0064] In a feasible implementation manner, as shown in Figure 9 , Figure 9 is a structural schematic diagram of the light transmission support part 18 provided by the embodiment of the present application. The light transmission area 2 includes the light transmission support part 18, and the light transmission support part 18 is located on the side of the second part 8 close to the back plate 4, so that the second part 8 of the light emitting element 6 can be stably supported by the light transmission support part 18. Especially when the two electrodes 9 are located on the same side of the light emitting element 6, the light emitting element 6 can be prevented from being skewed, and the stability of the light emitting element 6 can be improved. Moreover, the upper surface of the light transmission support part 18 on the side away from the back plate 4 can be flush with the upper surface of the electrode 9 on the side away from the back plate 4, so that the light emitting element 6 tends to be flat as a whole after being supported by the light transmission support part 18.

[0065] In a feasible implementation manner, as shown in Figure 10 and Figure 11 , Figure 10Another structural schematic diagram of the display panel provided by the embodiment of the present application, Figure 11 For Figure 10 The cross-sectional view along the direction of D1-D2, at least part of the light emitting element 6 includes two first parts 7, which are respectively located on both sides of the second part 8, and the two first parts 7 respectively include an electrode 9.

[0066] In this structure, after the electrode 9 of the light emitting element 6 is connected with the bonding part 5, the stability of the light emitting element 6 is higher, and it is not easy to be skewed to one side. Moreover, the light emitting element 6 spans the light transmission area 2, which can increase the actual light emitting area of the light emitting element 6 after being shielded by the anti-reflection layer 10.

[0067] In a feasible implementation manner, as shown in Figure 12 and Figure 13 , the light emitting element 6 is arranged in a matrix manner. Figure 12 Another structural schematic diagram of the display panel provided by the embodiment of the present application, Figure 13 Another structural schematic diagram of the display panel provided by the embodiment of the present application, the display panel includes a plurality of light emitting units 19, and the light emitting unit 19 includes at least two light emitting elements 6, wherein the second part 8 of the light emitting element 6 in the light emitting unit 19 is located in the same light transmission area 2. In the embodiment of the present application, the light emitting unit 19 can include a red light emitting element 20 for emitting red light, a green light emitting element 21 for emitting green light, and a blue light emitting element 22 for emitting blue light.

[0068] In this arrangement manner, each light transmission area 2 at least accommodates the second part 8 of the plurality of light emitting elements 6 in the light emitting unit 19, when the light transmission area 2 is divided, the area of a single light transmission area 2 is larger, and the light transmission performance of the display panel is better. Moreover, the light emitting elements 6 in the same light emitting unit 19 are also close to each other, which can also improve the light emitting effect of a single light emitting unit 19.

[0069] In a feasible implementation manner, referring to Figure 12 and Figure 13 , the size of the light transmission area 2 in the first direction x is smaller than the size in the second direction y, the light emitting elements 6 in the light emitting unit 19 are arranged along the second direction y, the first direction x and the second direction y are respectively parallel to the plane where the back plate 4 is located, and the first direction x intersects with the second direction y.

[0070] When the size of the light transmission area 2 in the first direction x is smaller than the size in the second direction y, if the plurality of light emitting elements 6 are arranged along the first direction x, the width of the light emitting element 6 will be very small, which leads to that the light emitting element 6 is in an elongated strip shape, which brings great difficulty to the design of the two electrodes 9. By designing the plurality of light emitting elements 6 to be arranged along the second direction y, each light emitting element 6 can have sufficient width, which helps to optimize the design of the electrode 9.

[0071] In an embodiment, as shown in Figure 14 and Figure 15 , Figure 14 is another schematic diagram of the arrangement of the light emitting element 6 provided by an embodiment of the present application, Figure 15 is still another schematic diagram of the arrangement of the light emitting element 6 provided by an embodiment of the present application, the light emitting unit 19 comprises three light emitting elements 6, two of which are arranged along the second direction y, and the other one is located on one side of the two light emitting elements 6 along the first direction x, the first direction x and the second direction y are respectively parallel to the plane on which the back plate 4 is located, and the first direction x intersects the second direction y.

[0072] For example, referring to Figure 14 , the green light emitting element 21 and the blue light emitting element 22 are arranged in parallel, and the red light emitting element 20 is arranged perpendicularly to the green light emitting element 21 and the blue light emitting element 22. Alternatively, referring to Figure 15 , any two of the red light emitting element 20, the green light emitting element 21 and the blue light emitting element 22 are arranged non-parallelly and non-perpendicularly.

[0073] In this arrangement, the light emitting elements 6 in the light emitting unit 19 are not arranged in the same direction, and this irregular arrangement can reduce the diffraction phenomenon of light when it passes through the light transmission area 2, thereby reducing the influence on the display.

[0074] Further, referring to Figure 15 , in the light emitting unit 19, the extension direction of the edge of the second part 8 of any light emitting element 6 is different from that of the second part 8 of the remaining light emitting elements 6, so that the light emitting elements 6 in the light emitting unit 19 are arranged more irregularly, and it is more difficult to appear interference reinforcement or interference cancellation along a specific direction, so as to eliminate the diffraction phenomenon to a greater extent.

[0075] In an embodiment, in order to reduce the diffraction phenomenon, as shown in Figure 16 , Figure 16 is a schematic diagram of the structure of the light emitting element 6 provided by an embodiment of the present application, at least part of the edge of the second part 8 of the light emitting element 6 can be arranged to extend in a non-straight line, for example, to extend in a curved line or a broken line.

[0076] In an embodiment, referring again to Figure 13The plurality of light emitting elements 6 include a red light emitting element 20, a green light emitting element 21, and a blue light emitting element 22. Among them, since the red light emitting material has a low light emitting efficiency, the area of the second part 8 of the red light emitting element 20 can be set to be larger than the area of the second part 8 of the green light emitting element 21 and the blue light emitting element 22, so as to compensate for the influence of the light emitting efficiency on the brightness by using the influence of the light emitting area of the red light emitting element 20 on the brightness.

[0077] In a feasible implementation, referring to Figure 4 In order to make the first part 7 occupy a smaller area in the non-light transmission area 3 to a greater extent to increase the proportion of the light transmission area 2, the area of the first part 7 can be set to be smaller than the area of the second part 8.

[0078] It should be noted that in the embodiments of the present application, the size of the light emitting element 6 can be adaptively adjusted according to the arrangement manner of the light emitting element 6 in the light transmission area 2. For example, referring to FIG. 14, when the size of the light transmission area 2 in the second direction y is larger than the size in the first direction x, the width (size in the second direction y) of the green light emitting element 21 and the blue light emitting element 22 arranged in the same direction can be set to be larger than the width (size in the first direction x) of the red light emitting element 20, and the length (size in the first direction x) of the green light emitting element 21 and the blue light emitting element 22 can be set to be smaller than the length (size in the second direction y) of the red light emitting element 20.

[0079] In addition, in the embodiments of the present application, the shapes of the first part 7 and the second part 8 of the light emitting element 6 can also be different. For example, as shown in Figure 17 , Figure 17 Another structure diagram of the light emitting element 6 provided by the embodiments of the present application is shown, when the width of the light emitting element 6 (such as the red light emitting element 20) in the arrangement direction of the two electrodes 9 is small, the size of the first part 7 of the light emitting element 6 in the arrangement direction of the two electrodes 9 can be set to be larger than the size of the second part 8 of the light emitting element 6 in the arrangement direction of the two electrodes 9, that is, the first part 7 is designed to be widened, so that the positions of the two electrodes 9 can be optimized, such as increasing the spacing between the two electrodes 9 to avoid the risk of the electrode 9 contacting the bonding part 5 not corresponding to the electrode 9, or increasing the area of the electrode 9 to improve the connection reliability of the electrode 9 and the bonding part 5. Or, referring again to Figure 17 , when the width of the light emitting element 6 (such as the green light emitting element 21 and the blue light emitting element 22) in the arrangement direction of the two electrodes 9 is large, the size of the first part 7 of the light emitting element 6 in the arrangement direction of the two electrodes 9 can also be smaller than the size of the second part 8 of the light emitting element 6 in the arrangement direction of the two electrodes 9.

[0080] In a feasible implementation, as shown in Figure 18 ,Figure 18 Another partial structure diagram of the display panel provided by the embodiment of the present application is shown in FIG. 6. The display area 1 has an arc-shaped edge 23. The display area 1 includes a first display area 24 and a second display area 25 between the first display area 24 and the arc-shaped edge.

[0081] In the second display area 25, the area of the second part 8 of the light emitting element 6 is smaller than that of the first display area 24, so that the actual light emitting area of the light emitting element 6 in the second display area 25 is reduced after being shielded by the anti-reflection layer 10, i.e., the light emitting brightness is reduced, and the sawtooth effect at the arc-shaped edge is effectively weakened.

[0082] Based on the same inventive concept, the embodiment of the present application further provides a display device, as shown in Figure 19 Figure 19 A structure diagram of the display device provided by the embodiment of the present application is shown in FIG. 7. The display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiment, and will not be described here again. Of course, Figure 19 The display device shown in FIG. 7 is only for illustrative purposes. The display device can be any electronic device with display function, such as a mobile phone, a tablet computer, a notebook computer, an e-paper or a television.

[0083] The above only describes the preferred embodiments of the present application and should not be 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.

[0084] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.​

Claims

1. A display panel, characterized by, The display panel comprises: a display area comprising a light-transmitting region and a non-light-transmitting region; a back plate comprising a bonding portion located at the non-light-transmitting region; a light-emitting element located at one side of the back plate, comprising a first portion and a second portion, the first portion comprising an electrode, the electrode being electrically connected to the bonding portion, the first portion being located at the non-light-transmitting region, and at least part of the second portion being located at the light-transmitting region; an anti-reflection layer located at a side of the light-emitting element opposite to the back plate, the anti-reflection layer covering the electrode in a direction perpendicular to a plane in which the back plate is located.

2. The display panel of claim 1, wherein the anti-reflection layer is located at the non-light-transmitting region.

3. The display panel of claim 1, wherein at least part of the first portion of the light-emitting element is located at one side of the second portion.

4. The display panel of claim 3, wherein the first portion and the second portion are arranged along a first direction, the first portion comprises two electrodes, and the two electrodes are arranged along a second direction, the first direction and the second direction are respectively parallel to the plane in which the back plate is located, and the first direction intersects the second direction.

5. The display panel of claim 1 or 3, wherein the light-transmitting region comprises a light-transmitting support portion, the light-transmitting support portion being located at a side of the second portion close to the back plate.

6. The display panel of claim 1, wherein at least part of the light-emitting element comprises two first portions, the two first portions are respectively located at two sides of the second portion, and the two first portions respectively comprise one electrode.

7. The display panel of claim 1, wherein the display panel comprises a plurality of light-emitting units, each of the light-emitting units comprises at least two light-emitting elements, and the second portions of the light-emitting elements in the light-emitting unit are located at the same light-transmitting region.

8. The display panel of claim 7, wherein a size of the light-transmitting region in a first direction is smaller than a size of the light-transmitting region in a second direction, the light-emitting elements in the light-emitting unit are arranged along the second direction, the first direction and the second direction are respectively parallel to the plane in which the back plate is located, and the first direction intersects the second direction.

9. The display panel of claim 7, wherein the light-emitting unit comprises three light-emitting elements, two of the light-emitting elements are arranged along a second direction, and the other light-emitting element is located at one side of the two light-emitting elements in a first direction, the first direction and the second direction are respectively parallel to the plane in which the back plate is located, and the first direction intersects the second direction.

10. The display panel of claim 7, wherein in the light-emitting unit, an extension direction of an edge of the second portion in any of the light-emitting elements is different from an extension direction of an edge of the second portion in the other light-emitting elements.

11. The display panel of claim 1, wherein at least part of an edge of the second portion extends in a non-straight line.

12. The display panel of claim 1, wherein, the plurality of light emitting elements comprise red light emitting elements, green light emitting elements, and blue light emitting elements; wherein the second portion of the red light emitting elements has a larger area than the second portion of the green light emitting elements and the blue light emitting elements.

13. The display panel of claim 1, wherein, the first portion has a smaller area than the second portion.

14. The display panel of claim 1, wherein, the display area has an arc-shaped edge, the display area comprises a first display region and a second display region between the first display region and the arc-shaped edge; the second portion of the light emitting elements in the second display region has a smaller area than the second portion of the light emitting elements in the first display region.

15. A display device comprising: A display panel as claimed in any one of claims 1 to 14.

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