Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device. The display area of the display panel includes a first region. In the first region, the display panel includes a hollow part, an electrode connecting line, a first light shielding part and a second light shielding part. In a direction perpendicular to the plane on which the display panel lies, the hollow part penetrates the cathode layer, and the hollow part is located between adjacent light emitting components. The electrode connecting line connects the cathodes of two adjacent light emitting components. The first light shielding part is located in at least any one film layer between the electrode connecting line and the substrate. In the direction perpendicular to the plane on which the display panel lies, the first light shielding part at least partially overlaps the electrode connecting line. The second light shielding part is arranged in any one film layer between the light emitting component and the substrate. In the direction perpendicular to the plane on which the display panel lies, the second light shielding part at least partially overlaps the light emitting component. The first light shielding part and the second light shielding part are different layers, and in the direction perpendicular to the plane on which the display panel lies, the first light shielding part and the second light shielding part at least partially overlap.

Description

TECHNICAL FIELD

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

[0002] The CUP (Camera Under Panel) of the display panel refers to setting the camera under the display panel, and the CUP area of the display panel refers to the area above the camera in the display panel, and the CUP area of the display panel needs to have the light transmission and the display function. In order to make the CUP area have better light transmission, the cathode layer of the CUP area is generally subjected to the patterning process, and the electrode connecting line between the cathodes is easy to be damaged by the laser in the process of the patterning, thereby affecting the display performance of the display panel.

[0003] CONTENT

[0004] Therefore, the display panel and the display device are provided in the embodiments of the present application to reduce the influence of the laser diffraction on the width of the electrode connecting line.

[0005] In a first aspect, the embodiments of the present application provide a display panel, and the display area of the display panel includes a first area; the display panel includes a substrate, a cathode layer and a plurality of light emitting pieces; wherein the plurality of light emitting pieces are arranged on one side of the substrate; and the cathode layer includes the cathodes of the light emitting pieces. In the first area, the display panel includes a hollow part, an electrode connecting line, a first light shielding part and a second light shielding part; the hollow part penetrates the cathode layer in a direction perpendicular to the plane where the display panel is located, and the hollow part is located between adjacent light emitting pieces; the electrode connecting line connects the cathodes of the adjacent two light emitting pieces; the first light shielding part is located in at least any one film layer between the electrode connecting line and the substrate, and the first light shielding part and the electrode connecting line at least partially overlap in the direction perpendicular to the plane where the display panel is located, and the first light shielding part and at least part of the hollow part do not overlap; and the second light shielding part is arranged in any one film layer between the light emitting piece and the substrate, and the second light shielding part and the light emitting piece at least partially overlap in the direction perpendicular to the plane where the display panel is located; the first light shielding part and the second light shielding part are different layers, and the first light shielding part and the second light shielding part at least partially overlap in the direction perpendicular to the plane where the display panel is located.

[0006] In a second aspect, the present application provides a display device, and the display device includes the display panel of the first aspect.

[0007] In the embodiments of the present application, the first light shielding part is used to protect the electrode connecting line to prevent the electrode connecting line from being etched by the laser, and the first light shielding part is located in any one film layer between the electrode connecting line and the substrate, which reduces the distance between the first light shielding part and the electrode connecting line in the direction perpendicular to the plane where the display panel is located, thereby reducing the influence of the laser diffraction on the width of the electrode connecting line. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. 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 effort on the basis of these drawings.

[0009] Figure 1 A schematic diagram of a display panel provided by an embodiment of the present application;

[0010] Figure 2 A schematic diagram of a display panel provided by an embodiment of the present application;

[0011] Figure 3 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 1 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 2 A partial schematic diagram of a CC region in the display panel;

[0012] Figures 4-9 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 3 A schematic diagram of a display panel provided by an embodiment of the present application;

[0013] Figures 10-12 A schematic diagram of a display panel provided by an embodiment of the present application;

[0014] Figure 13 A schematic diagram of a display panel provided by an embodiment of the present application;

[0015] Figure 14 A schematic diagram of a display panel provided by an embodiment of the present application;

[0016] Figures 15-19 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 3 A schematic diagram of a display panel provided by an embodiment of the present application;

[0017] Figure 20 A schematic diagram of a display panel provided by an embodiment of the present application;

[0018] Figure 21 A schematic diagram of a display panel provided by an embodiment of the present application;

[0019] Figures 22-26 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 3 A schematic diagram of a display panel provided by an embodiment of the present application;

[0020] Figure 27 A schematic diagram of a display panel provided by an embodiment of the present application;

[0021] Figure 28 This is a schematic diagram of a display device provided in an embodiment of this application.

[0022] Label Explanation

[0023] 101. Substrate; 102. Second light-shielding part; 103. Jumper hole; 104. Third light-shielding part; 105. Fourth light-shielding part; 106. Signal line; 107. Cathode layer; 108. Hollowed-out part; 109. Light-shielding layer; 110. First light-shielding part; 111. Concave-convex structure; 120. Electrode connection line; 121. First sub-electrode connection line; 122. Second sub-electrode connection line; 130. Light-emitting element; 131. Cathode; 132. Anode; 140. First orthographic projection; 141. First sub-projection; 142. Second sub-projection; 143. Protrusion; 150. Second orthographic projection; 160. Third orthographic projection; 170. Circuit unit; 171. Adapter electrode; 172. Transistor; 200. Display device.

Detailed Implementation Methods

[0024] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0026] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0027] 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.

[0028] In the description of this specification, it should be understood that the terms "substantially", "approximately", "about", "about", "generally", "largely" used in the claims and embodiments of this application refer to values ​​that can be generally agreed upon within a reasonable range of process operations or tolerances, rather than a precise value.

[0029] It should be understood that although the terms first, second, third, etc. can be used in embodiments of the present application to describe various regions, etc., these regions, etc. should not be limited by these terms. These terms are only used to distinguish one region, etc. from another region, etc.

[0030] The present applicant provides a solution to the problems existing in the prior art through careful and in-depth research.

[0031] Figure 1 A schematic diagram of a display panel provided by an embodiment of the present application; Figure 2 A schematic diagram of a display panel provided by an embodiment of the present application.

[0032] Please refer to Figure 1 and Figure 2 A display panel 100 includes a display area AA and a non-display area NA, the non-display area NA at least partially surrounds the display area AA, the display area AA is a main area for light-emitting display, and the non-display area NA is mainly used for setting an encapsulation structure, a peripheral circuit, a peripheral signal line, etc.

[0033] Please refer to Figure 1 and Figure 2 The display area AA includes a first area A1. It can be understood that the first area A1 is a CUP area, and a camera or other light sensor device can be arranged below the CUP area of the display panel.

[0034] In order to ensure the light transmittance of the first area A1, the cathode sometimes needs to be patterned in the CUP area of the display panel. The inventor has found that the MS layer (i.e. metal shielding layer) needs to be used for shielding during patterning. Since the existing MS layer is arranged in a film layer close to the substrate, diffraction phenomenon occurs when laser passes through the MS layer, so that the electrode connection line with a relatively narrow width is easily affected by laser diffraction, and the width and integrity thereof cannot be guaranteed.

[0035] Figure 3 A partial schematic diagram of the CC area in Figure 1 and Figure 2 A partial schematic diagram of the CC area in Figure 4 A cross-sectional schematic diagram along the direction of NN' in Figure 3 A cross-sectional schematic diagram along the direction of NN' in Figure 5 A cross-sectional schematic diagram along the direction of NN' in Figure 3 A cross-sectional schematic diagram along the direction of NN' in

[0036] Please refer to Figure 3 and Figure 4 , Figure 5 The display panel 100 includes a substrate 101, a cathode layer 107, and a plurality of light-emitting pieces 130. The plurality of light-emitting pieces 130 are arranged on one side of the substrate 101, and the cathode layer 107 includes cathodes 131 of the light-emitting pieces 130.

[0037] in combination Figure 3 with Figure 4 , Figure 5 The display panel 100 in the first area A1 includes a first light shielding part 110, an electrode connecting line 120, and a hollow part 108. The hollow part 108 penetrates the cathode layer 107 in a direction perpendicular to the plane on which the display panel is located, and the hollow part 108 is located between adjacent light emitting pieces 130, that is, the hollow part 108 can be included between at least some of the cathodes 131 of the adjacent light emitting pieces 130 in the first area A1. The first light shielding part 110 is located on the side of the substrate 101 facing the light emitting element 130. The electrode connecting line 120 electrically connects the cathodes 131 of two adjacent light emitting pieces 130. The first light shielding part 110 is located in at least any one film layer between the electrode connecting line 120 and the substrate 101, and the first light shielding part 110 and the electrode connecting line 120 at least partially overlap in a direction perpendicular to the plane on which the display panel 100 is located, and the first light shielding part 110 and at least part of the hollow part 108 do not overlap.

[0038] In the first area A1, the hollow part 108 penetrates the cathode layer 107 in a direction perpendicular to the plane on which the display panel is located, and the hollow part 108 is located between adjacent light emitting pieces; the cathodes 131 included in the two adjacent light emitting pieces 130 are electrically connected together through the electrode connecting line 120, which can increase the light transmittance of the first area A1.

[0039] Meanwhile, in the technical solution of the embodiment of the present application, the cathode layer 107 in the first area A1 needs to be patterned by laser to realize that the cathodes 131 included in different light emitting pieces 130 are electrically connected together through the electrode connecting line 120 and the cathode layer 107 includes the hollow part 108. The electrode connecting line 120 can be provided in the same layer as the cathode 131. In order to increase the light transmittance of the first area A1, the width of the electrode connecting line 120 is narrower, and the risk of breakage after laser over-etching is extremely high.

[0040] The first light shielding part 110 is used to protect the electrode connecting line 120 to prevent the electrode connecting line 120 from being etched by laser. The greater the distance between the first light shielding part 110 and the electrode connecting line 120 in a direction perpendicular to the plane on which the display panel 100 is located, the greater the width of laser diffraction, and the greater the risk of over-etching of the electrode connecting line 120 by laser. In the technical solution of the embodiment of the present application, the first light shielding part 110 is located in any one film layer between the electrode connecting line 120 and the substrate 101, which reduces the distance between the first light shielding part 110 and the electrode connecting line 120 in a direction perpendicular to the plane on which the display panel 100 is located, thereby reducing the influence of laser diffraction on the width of the electrode connecting line 120.

[0041] Please refer to Figure 4 and Figure 5In an embodiment of the present application, the light emitting component 130 further comprises an anode 132. The light emitting component 130 can be an OLED (Organic Light Emitting Diode), and an organic light emitting layer is arranged between the cathode 131 and the anode 132 of the light emitting component 130. The light emitting component 130 can also be a Micro-LED (Micro Light Emitting Diode) or a Mini-LED (Mini Millimeter Light Emitting Diode). It should be noted that in order to distinguish the cathode 131 from the electrode connection line 120, the cathode 131 is defined as: the cathode 131 refers to the part of the cathode layer 107 covered by the projection of the anode 132 in the direction perpendicular to the surface of the display panel 100.

[0042] The display panel 100 further comprises a second light shielding portion 102 in the first area A1, and the second light shielding portion 102 is arranged in any film layer between the anode 132 and the substrate 101. The second light shielding portion 102 at least partially overlaps the light emitting component 130 in the direction perpendicular to the surface of the display panel 100. It can be understood that the second light shielding portion 102 overlaps the cathode 131 of the light emitting component 130 in the direction perpendicular to the surface of the display panel 100, so as to protect the cathode 131 of the light emitting component 130, thereby preventing the cathode 131 of the light emitting component 130 from being etched by laser, and ensuring the integrity of the cathode 131 and the performance of the light emitting component 130.

[0043] The first light shielding portion 110 and the second light shielding portion 102 are in different layers, and at least partially overlap in the direction perpendicular to the surface of the display panel 100. Since the conductive structure between the cathode 131 and the substrate 101 is not completely the same as the signal line and / or circuit element between the electrode connection line 120 and the substrate 101, if the first light shielding portion 110 and the second light shielding portion 102 are arranged in the same film layer, the arrangement of the conductive structure may be affected. Therefore, in the embodiment of the present application, the first light shielding portion 110 and the second light shielding portion 102 are arranged in different layers, and the film layers in which the first light shielding portion 110 and the second light shielding portion 102 are respectively arranged can be flexibly arranged according to the over-etching risk of the cathode 131 and the over-etching risk of the electrode connection line 120. The first light shielding portion 110 and the second light shielding portion 102 are arranged to overlap in the direction perpendicular to the surface of the display panel 100, so as to avoid the risk that the connection between the cathode 131 and the electrode connection line 120 is damaged by laser etching.

[0044] The display region AA further comprises a second region A2, the first region A1 is adjacent to the second region A2, and the transmittance of the first region A1 to external light is greater than the transmittance of the second region A2 to external light. In the second region A2, the display panel 100 comprises at least one light shielding layer 109, the light shielding layer 109 is located between the light emitting piece 130 and at least any film layer of the substrate 101, and the light shielding layer 109 at least partially overlaps with the cathode layer 107 in the direction perpendicular to the plane where the display panel 100 is located.

[0045] Further, the circuit unit 170 electrically connected to the light emitting piece arranged in the first region A1 can be located in the second region A2, so as to further increase the transmittance of the first region A1 to external light. The light shielding layer 109 can be located between the circuit unit 170 and the substrate 101, so that the light shielding layer 109 can shield light for the transistor 172 included in the circuit unit 170, for example, can shield laser light, so as to avoid the influence of laser light on the performance of the transistor 172. The circuit unit 170 comprises the switching electrode 171 and the transistor 172, the switching electrode 171 is electrically connected to the corresponding transistor 172 and the anode 132 of the corresponding light emitting piece 130, so as to realize the power supply of the transistor 172 to the corresponding light emitting piece 130.

[0046] The at least partially light shielding layer 109 can at least partially overlap with the cathode 131 in the cathode layer 107.

[0047] Please refer to Figure 5 In an embodiment of the present application, the distance between the first light shielding part 110 and the electrode connecting line 120 in the direction perpendicular to the plane where the display panel 100 is located is smaller than the distance between the second light shielding part 102 and the cathode 131. It can be understood that the minimum distance between the first light shielding part 110 and the electrode connecting line 120 in the direction perpendicular to the plane where the display panel 100 is located is smaller than the minimum distance between the second light shielding part 102 and the cathode 131.

[0048] The distance between the first light shielding part 110 and the electrode connecting line 120 is smaller than the distance between the second light shielding part 102 and the cathode 131, that is, the first light shielding part 110 is closer to the electrode connecting line 120, and the distance between the first light shielding part 110 and the electrode connecting line 120 in the direction perpendicular to the plane where the display panel 100 is located is smaller, and this smaller distance can effectively reduce the influence of the diffraction phenomenon of the laser light shielded by the first light shielding part 110 on the etching width of the electrode connecting line 120.

[0049] In an implementation, the minimum distance between the first light shielding part 110 and the substrate 101 is greater than the minimum distance between the second light shielding part 102 and the substrate 101 in the direction perpendicular to the plane where the display panel 100 is located. It can be understood that the first light shielding part 110 and the second light shielding part 102 are located in different film layers, and the first light shielding part 110 is located in a film layer farther away from the substrate 101, that is, the first light shielding part 110 is located in a film layer closer to the cathode layer 107.

[0050] Please refer to Figure 5 In an implementation of the present application, the projections of the first light shielding part 110 and the second light shielding part 102 on the substrate 101 at least partially overlap in the direction perpendicular to the plane where the display panel 100 is located, and the length of the overlapping part in the first direction is L; the distance between the first light shielding part 110 and the second light shielding part 102 in the direction perpendicular to the plane where the display panel is located is H, L = H tan θ, 0 < θ ≤ 30°; wherein the first direction is parallel to the electrode connecting line 120 between two adjacent light emitting pieces.

[0051] Please refer to Figure 4 and Figure 5 In an implementation of the present application, the first light shielding part 110 and the second light shielding part 102 at least partially overlap in the direction perpendicular to the plane where the display panel 100 is located. Then the projection of the first light shielding part 110 in the direction perpendicular to the plane where the display panel 100 is located at least partially covers the cathode 131 of the adjacent light emitting piece 130; and / or, the projection of the second light shielding part 102 in the direction perpendicular to the plane where the display panel 100 is located at least partially covers the electrode connecting line 120. The at least partial overlap of the first light shielding part 110 and the second light shielding part 102 in the direction perpendicular to the plane where the display panel 100 is located can effectively ensure the electrical connection between the cathode 131 and the electrode connecting line 120, and improve the connection yield between the cathode 131 and the electrode connecting line 120.

[0052] In an implementation of the present application, the first light shielding part 110 and the second light shielding part 102 are located in different film layers, and the projections of the first light shielding part 110 and the second light shielding part 102 in the direction perpendicular to the plane where the display panel 100 is located at least partially overlap, thereby improving the connection yield between the cathode 131 and the electrode connecting line 120.

[0053] For example, please refer to Figure 4 and Figure 5The projection of the second light shielding portion 102 along the direction perpendicular to the plane of the display panel 100 partially overlaps the projection of the first light shielding portion 110, and the width of the second light shielding portion 102 along the first direction X is greater than or equal to the width of the cathode 131 along the first direction X. The first light shielding portion 110 and the second light shielding portion 102 achieve double protection of the electrode connecting line 120 in the overlapping area, preventing the electrode connecting line 120 from being electrically insulated from the cathode 131 due to laser diffraction.

[0054] Referring to Figure 4 and Figure 5 In an embodiment of the present application, the first light shielding portion 110 is arranged in a film layer between the substrate 101 and the anode 132; the two adjacent anodes 132 are spaced apart, and the width of the first light shielding portion 110 along the first direction is greater than or equal to the distance between the two adjacent anodes 132 along the first direction, and the first direction X is parallel to the electrode connecting line 120 between the two adjacent light emitting members 130. It can be understood that the projection of the first light shielding portion 110 along the direction perpendicular to the plane of the display panel 100 covers the electrode connecting line 120.

[0055] Referring to Figure 4 and Figure 5 In an embodiment, the width of the first light shielding portion 110 along the first direction is greater than or equal to the distance between the two adjacent light emitting members 130 along the first direction, and the first direction is parallel to the electrode connecting line 120 between the two adjacent light emitting members 130. It can be understood that the projection of the first light shielding portion 110 along the direction perpendicular to the plane of the display panel 100 covers the electrode connecting line 120, so that the first light shielding portion 110 can protect the electrode connecting line 120 to achieve electrical connection between the two adjacent light emitting members 130.

[0056] Figure 6 Fig. 1 is a schematic view of a display panel according to an embodiment of the present application; Figure 3 Fig. 2 is a schematic view of a cross section along the direction of N-N’ of the display panel shown in Fig. 1; Figure 7 Fig. 3 is a schematic view of a cross section along the direction of N-N’ of the display panel shown in Fig. 1; Figure 3 Fig. 4 is a schematic view of a cross section along the direction of N-N’ of the display panel shown in Fig. 1.

[0057] Referring to Figure 6 and Figure 7In an embodiment of the present application, the two adjacent anodes 132 are spaced apart and electrically insulated from each other, the first light shielding part 110 is in the same layer as the anode 132, i.e. the first light shielding part 110 and the anode 132 are carried by the same insulating layer. The width D1 of the first light shielding part 110 along the first direction X is less than or equal to the distance d1 between the two adjacent anodes 132 along the first direction X, wherein the first direction X is parallel to the electrode connecting line 120 between the two adjacent light emitting elements 130. It can be understood that, along the direction perpendicular to the plane where the display panel 100 is located, the first light shielding part 110 overlaps the electrode connecting line 120, and the first light shielding part 110 does not overlap the anode 132. The first light shielding part 110 is arranged in the same layer as the anode 132 of the light emitting element 130, and the first light shielding part 110 is electrically insulated from the anode 132 of the light emitting element 130.

[0058] At this time, the second light shielding part 102 covers the anode 132 and at least part of the electrode connecting line 120 included in the corresponding light emitting element 130 along the direction perpendicular to the plane where the display panel 100 is located. Thus, the connection yield between the cathode 131 included in the light emitting element 130 and the electrode connecting line 120 can be ensured.

[0059] Optionally, referring to Figure 6 , the first light shielding part 110 is in the same layer as the anode 132, and the width D1 of the first light shielding part 110 along the first direction X is less than the distance d1 between the two adjacent anodes 132 along the first direction X, wherein the first direction X is parallel to the electrode connecting line 120 between the two adjacent light emitting elements 130. It can be understood that, along the first direction X, the two ends of the first light shielding part 110 are spaced apart from the corresponding anodes 132, respectively. The first light shielding part 110 is arranged in the same layer as the anode 132, which can realize that the first light shielding part 110 and the anode 132 are made of the same material in the same process, saving cost; at the same time, the light reflection property of the anode 132 can increase the utilization rate of laser.

[0060] The electrode connecting line 120 includes a first sub-electrode connecting line 121 and a second sub-electrode connecting line 122, the first sub-electrode connecting line is connected with the second sub-electrode connecting line 122 at both ends thereof, and the first light shielding part 110 covers the first sub-electrode connecting line 121 and does not overlap the second sub-electrode connecting line 122 along the direction perpendicular to the plane where the display panel 100 is located. The second light shielding part 102 covers the cathode 131 along the direction perpendicular to the plane where the display panel 100 is located, and the projection of the second light shielding part 102 along the direction perpendicular to the plane where the display panel 100 is located covers the second sub-electrode connecting line 122.

[0061] Please refer to Figure 6In an embodiment of the present application, the second light shielding part 102 has a width D2 in the first direction X that is greater than or equal to the width d2 of the anode 132 in the first direction X, and D2-d2≥d1-D1. It can be understood that the electrode connecting line 120 includes a first sub-electrode connecting line 121 and a second sub-electrode connecting line 122, the first sub-electrode connecting line 121 is connected to the second sub-electrode connecting line 122 at both ends thereof, the first light shielding part 110 covers the first sub-electrode connecting line 121 in the projection direction perpendicular to the plane of the display panel 100, and the two ends of the first light shielding part 110 in the first direction X are respectively separated from the corresponding anode 132. The second light shielding part 102 covers the light emitting member 130 in the projection direction perpendicular to the plane of the display panel 100, and the projection of the second light shielding part 102 covers at least the second sub-electrode connecting line 122 and part of the first sub-electrode connecting line 121 in the projection direction perpendicular to the plane of the display panel 100.

[0062] Referring to Figure 6 , in the projection direction perpendicular to the plane of the display panel 100, the projection of the first light shielding part 110 at least partially overlaps the projection of the second light shielding part 102, the projection of the first light shielding part 110 covers the first sub-electrode connecting line 121, and the second light shielding part 102 covers the light emitting member 130, the second sub-electrode connecting line 122, and at least part of the first sub-electrode connecting line 121.

[0063] Optionally, referring to Figure 7 , the first light shielding part 110 is in the same layer as the anode 132, and the width D1 of the first light shielding part 110 in the first direction X is equal to the distance d1 between two adjacent anodes 132 in the first direction X. It can be understood that the first light shielding part 110 is made of an insulating material with light shielding properties, the projection of the first light shielding part 110 covers the electrode connecting line 120 in the projection direction perpendicular to the plane of the display panel 100, and the two ends of the first light shielding part 110 in the first direction X are respectively connected to the corresponding anode 132.

[0064] Referring to Figures 4 to 7 , in one technical solution in the embodiment, in the projection direction perpendicular to the plane of the display panel 100, the first light shielding part 110 overlaps the electrode connecting line 120, and the first light shielding part 110 does not overlap the cathode 131; the second light shielding part 102 overlaps the cathode 131, and the second light shielding part 102 at least partially overlaps the electrode connecting line 120. The first light shielding part 110 and the second light shielding part 102 at least partially overlap, which realizes double protection of the electrode connecting line 120 in the overlapping part, prevents electrical insulation between the electrode connecting line 120 and the cathode 131 caused by laser diffraction, and reduces the influence of laser diffraction on the width of the electrode connecting line 120 in the second direction.

[0065] Optionally, referring to Figures 4 to 7At least part of the first light shielding part 110 and at least part of the electrode connecting line 120 do not overlap with the second light shielding part 102 in the direction perpendicular to the plane on which the display panel 100 is located. The second light shielding part 102 can be arranged one-to-one with the light emitting member 130, and there is no connection between the second light shielding parts 102 corresponding to different light emitting members 130.

[0066] Figure 8 For Figure 3 A schematic diagram of a cross section along the direction of NN' in the embodiment.

[0067] Optionally, referring to Figure 8 The projection of the first light shielding part 110 in the direction perpendicular to the plane on which the display panel 100 is located covers the electrode connecting line 120 and the cathode 131 respectively. The first light shielding part 110 protects the electrode connecting line 120 and the cathode 131 from laser etching.

[0068] Figure 9 For Figure 3 A schematic diagram of a cross section along the direction of NN' in the embodiment.

[0069] In one technical solution of the embodiment, referring to Figure 9 The projection of the second light shielding part 102 in the direction perpendicular to the plane on which the display panel 100 is located covers the projection of the first light shielding part 110. The first light shielding part 110 and the second light shielding part 102 double-protect the electrode connecting line 120, and the influence of laser diffraction on the width of the electrode connecting line 120 in the second direction is reduced.

[0070] Figure 10 A schematic diagram of the projection of a second light shielding part and a light emitting member provided by the embodiment of the application; Figure 11 A schematic diagram of the projection of a second light shielding part and a light emitting member provided by the embodiment of the application; Figure 12 A schematic diagram of the projection of a second light shielding part and a light emitting member provided by the embodiment of the application.

[0071] Referring to Figures 10 to 12 In one embodiment of the application, the orthographic projection of the second light shielding part 102 in the direction perpendicular to the plane on which the display panel 100 is located is a first orthographic projection 140, and the orthographic projection of the light emitting member 130 is a second orthographic projection 150. The first orthographic projection 140 covers the second orthographic projection 150, and further, the shape of the first orthographic projection 140 can be similar to the shape of the second orthographic projection 150. The shape of the first orthographic projection 140 is a circle, an ellipse, a rectangle, or other implementable graphics, and the shape of the second orthographic projection 150 is a circle, an ellipse, a rectangle, or other implementable graphics.

[0072] Referring to Figure 13 , Figure 13This is a projection diagram of a first light-shielding part, a second light-shielding part, and a light-emitting element provided in an embodiment of this application. In one embodiment of this application, along a direction perpendicular to the plane where the display panel 100 is located, the orthographic projection of the second light-shielding part 102 is a first orthographic projection 140, the orthographic projection of the light-emitting element 130 is a second orthographic projection 150, and the orthographic projection of the first light-shielding part 110 is a third orthographic projection 160. The first orthographic projection 140 includes a connected first sub-projection 141 and a second sub-projection 142; the first sub-projection 141 covers the second orthographic projection 150, and the shape of the first sub-projection 141 is similar to the shape of the second orthographic projection 150; the second sub-projection 142 extends from the first sub-projection 141 towards the third orthographic projection 160, and the second sub-projection 142 partially overlaps with the third orthographic projection 160. This can be understood as follows: the projection of the second light-shielding part 102 along a direction perpendicular to the plane of the display panel 100 covers a portion of the electrode connection line 120 and the cathode 131, respectively, thus protecting the electrode connection line 120 and the cathode 131 from laser etching. Therefore, the first light-shielding part 110 and the second light-shielding part 102 achieve double-layer protection for the cathode 131 and the electrode connection line 120, effectively reducing the influence of laser diffraction on the width of the electrode connection line 120 along the second direction.

[0073] Figure 14 A plan view of the second light-shielding part in an embodiment of this application.

[0074] When the projection of the second light-shielding portion 102 along a direction perpendicular to the plane of the display panel 100 at least partially covers the adjacent electrode connection line 120, the second light-shielding portion 102 includes a protrusion 143 and a main body portion 143'. The protrusion 143 is located outside the main body portion 143' and connected to the main body portion 143'. The shape of the main body portion 143' can be similar to the shape of the second orthographic projection 150, and the projection of the main body portion 143' is the first sub-projection 141, covering the corresponding second orthographic projection 150. The projection of the protrusion 143 is the second sub-projection 142. The protrusion 143, on the one hand, does not excessively increase the area of ​​the second light-shielding portion 102, ensuring that the first region A1 has a high light transmittance; on the other hand, it ensures that the second light-shielding portion 102 and the first light-shielding portion 110 fully overlap, reducing the risk of the electrode connection line 120 being over-etched due to non-overlap. Therefore, the fact that the first light-shielding part 110 and the second light-shielding part 102 overlap at least partially in a direction perpendicular to the surface of the display panel 100 can ensure that the cathode 131 and the electrode connection line 120 are electrically connected, thereby improving the connection yield between the cathode 131 and the electrode connection line 120.

[0075] Figure 15 for Figure 3 A schematic cross-sectional view along the NN' direction; Figure 16 for Figure 3 A schematic cross-sectional view along the NN' direction;Figure 17 Fig. 2 is a schematic view of a cross section along the direction of NN' in Fig. 1, Figure 3 Fig. 2 is a schematic view of a cross section along the direction of NN' in Fig. 1, Figure 18 Fig. 2 is a schematic view of a cross section along the direction of NN' in Fig. 1. Figure 3 Fig. 2 is a schematic view of a cross section along the direction of NN' in Fig. 1.

[0076] Referring to Figures 15 to 18 In an embodiment of the present application, the first light shielding portion 110 and the second light shielding portion 102 are provided with a jumper hole 103; the display panel 100 further comprises a third light shielding portion 104 in the first area, and the projection of the third light shielding portion 104 along the direction perpendicular to the plane of the display panel 100 covers the jumper hole 103. The jumper hole 103 is used to set the jumper between different conductive film layers to realize the electrical connection between different conductive film layers. By setting the third light shielding portion 104 overlapping the jumper hole 103, the risk of mis-etching the cathode 131 and the electrode connecting line 120 after the laser transmits through the area where the jumper hole 103 is located is avoided.

[0077] Further, the third light shielding portion 104 can be arranged on the side of the jumper hole 103 close to the substrate 101.

[0078] For example, referring to Figure 15 The first light shielding portion 110 is provided with a jumper hole 103, and the third light shielding portion 104 comprises a first sub-light shielding portion 104a, and the projection of the first sub-light shielding portion 104a along the direction perpendicular to the plane of the display panel 100 covers the jumper hole 103 on the first light shielding portion 110.

[0079] For example, referring to Figure 16 The second light shielding portion 102 is provided with a jumper hole 103, and the third light shielding portion 104 comprises a second sub-light shielding portion 104b, and the projection of the second sub-light shielding portion 104b along the direction perpendicular to the plane of the display panel 100 covers the jumper hole 103 on the second light shielding portion 102.

[0080] Referring to Figure 17 When the third light shielding portion 104 comprises the first sub-light shielding portion 104a and the second sub-light shielding portion 104b, the first sub-light shielding portion 104a and the second sub-light shielding portion 104b can be arranged in the same layer.

[0081] Referring to Figure 18When the third light shielding part 104 simultaneously includes the first sub light shielding part 104a and the second sub light shielding part 104b, the first sub light shielding part 104a can be disposed in a different layer from the second sub light shielding part 104b. For example, when the first light shielding part 110 is farther from the substrate 101 than the second light shielding part 102, the first sub light shielding part 104a can be farther from the substrate 101 than the second sub light shielding part 104b. This makes the first sub light shielding part 104a closer to the jumper hole 103 on the first light shielding part 110 and the second sub light shielding part 104b closer to the jumper hole 103 on the second light shielding part 104b, further reducing the risk of transmission or diffraction of laser light from the jumper hole.

[0082] Referring to Figure 19 , Figure 19 To Figure 3 Fig. 2 is a schematic diagram of a cross section along the direction of NN' of the display panel 100. In an embodiment of the present application, the display panel 100 further includes a fourth light shielding part 105 in the first region A1, which is located on the side of the first light shielding part 110 facing the substrate 101; the fourth light shielding part 105 includes silicon and the first light shielding part 110 includes metal. The display panel 100 is provided with a camera or other light sensing device below the first region. Since the first light shielding part 110 is metal and metal has a light-reflecting property, the light reflected by the first light shielding part 110 towards the substrate 101 can affect the light sensing device below the first region. The fourth light shielding part 105 can block the light reflected by the first light shielding part 110 towards the substrate 101, thereby reducing the impact of the light reflection on the surface of the first light shielding part 110 on the light sensing device.

[0083] In some embodiments, at least part of the fourth light shielding part 105 is multiplexed with the second light shielding part 102 in any one of the above embodiments.

[0084] Figure 20 Fig. 3 is a schematic diagram of the projection of a first light shielding part and a fourth light shielding part according to an embodiment of the present application; Figure 21 Fig. 4 is a schematic diagram of the projection of a first light shielding part and a fourth light shielding part according to an embodiment of the present application.

[0085] Referring to Figure 20 With Figure 21 In an embodiment of the present application, the first light shielding part 110 projects at least partially beyond the fourth light shielding part 105 along the orthogonal projection perpendicular to the plane of the display panel 100. It can be understood that the orthogonal projection of the fourth light shielding part 105 perpendicular to the plane of the display panel 100 covers part of the orthogonal projection of the first light shielding part 110 perpendicular to the plane of the display panel 100, so the fourth light shielding part 105 reduces the impact of the light reflection on the surface of the first light shielding part 110 on the light sensing device without affecting the width of the electrode connecting line 120.

[0086] For example, as shown in Figure 20 , the fourth light shielding part 105 is located in the middle of the vertical projection of the first light shielding part 110 on the plane where the display panel 100 is located, so the fourth light shielding part 105 effectively reduces the impact of the reflection of the surface of the first light shielding part 110 on the light sensing device.

[0087] For example, as shown in Figure 21 , the width of the vertical projection of the first light shielding part 110 on the plane where the display panel 100 is located is equal to the width of the vertical projection of the fourth light shielding part 105 on the plane where the display panel 100 is located, so the fourth light shielding part 105 greatly reduces the impact of the reflection of the surface of the first light shielding part 110 on the light sensing device without affecting the width of the electrode connecting line 120.

[0088] In an embodiment of the present application, the display panel 100 further comprises a circuit unit 170 and a signal line 106 electrically connected to the circuit unit 170; the first light shielding part 110 is arranged in the same layer as at least part of the structure in the circuit unit 170 and / or the signal line 106. Arranging the first light shielding part 110 in the same layer as at least part of the structure in the circuit unit 170 and / or the signal line 106 simplifies the process procedure for preparing the display panel 100 and reduces the number of film layers of the display panel 100 as a whole, which is conducive to the thinning of the display panel 100.

[0089] Optionally, as shown in Figure 4 , Figure 5 , Figure 8 , Figure 9 , Figures 15-19 , the circuit unit 170 comprises a transistor 172, and the first light shielding part 110 is arranged in the same layer as the source / drain of the transistor 172.

[0090] Figure 22 For example, as shown in Figure 3 , a cross-sectional view along the direction of N-N’ in

[0091] Optionally, as shown in Figure 22 , the first light shielding part 110 is arranged in the same layer as the gate of the transistor 172.

[0092] Figure 23 For example, as shown in Figure 3 , a cross-sectional view along the direction of N-N’ in

[0093] Optionally, as shown in Figure 23The display panel 100 further comprises a signal line 106 disposed on a film layer between the substrate 101 and the light emitting piece 130, and the first light shielding part 110 is disposed in the same layer as the signal line 106. The first light shielding part 110 is disposed in the same layer as the signal line 106, so that the first light shielding part 110 and the signal line 106 are manufactured in the same process, which simplifies the process of manufacturing the display panel 100, and reduces the number of film layers of the display panel 100, thereby facilitating the thinning of the display panel 100.

[0094] Figure 24 For Figure 3 a cross-sectional view along the direction of NN' in FIG. 1B, Figure 25 For Figure 3 a cross-sectional view along the direction of NN' in FIG. 1B, Figure 26 For Figure 3 a cross-sectional view along the direction of NN' in FIG. 1B.

[0095] In an embodiment of the present application, as shown in Figure 5 and Figures 24 to 26 , the second light shielding part 102 can be disposed in the same layer as at least part of the structure in the circuit unit 170 and / or the signal line 106. The first light shielding part 110 is disposed in the same layer as at least part of the structure in the circuit unit 170 and / or the signal line 106, which simplifies the process of manufacturing the display panel 100, and reduces the number of film layers of the display panel 100, thereby facilitating the thinning of the display panel 100.

[0096] Optionally, as shown in Figure 5 , the second light shielding part 102 is disposed in the same layer as the gate of the transistor 172.

[0097] Optionally, as shown in Figure 24 , the second light shielding part 102 is disposed in the same layer as the active layer of the transistor 172.

[0098] Optionally, as shown in Figure 25 , the second light shielding part 102 is disposed in the same layer as the source / drain of the transistor 172.

[0099] Optionally, as shown in Figure 26 , the second light shielding part 102 is disposed in the same layer as the signal line 106.

[0100] In an embodiment of the present application, the film layer where the second light shielding part 102 is located is on the side of the film layer where the first light shielding part 110 is located towards the substrate 101. Optionally, as shown in Figure 4 , the second light shielding part 102 is located on the side of the circuit unit 170 towards the substrate 101. For example, the second light shielding part 102 is disposed in the same layer as the light shielding layer 109.

[0101] Figure 27A schematic diagram of at least part of an edge structure of a first light shielding part according to an embodiment of the present application.

[0102] Referring to Figure 27 In an embodiment of the present application, the edge of the first light shielding part 110 comprises a concave-convex structure 111. The edge of the first light shielding part 110 can be at least one of a sawtooth shape, a curved shape, or other concave-convex shapes.

[0103] For example, referring to Figure 27 The edge of the first light shielding part 110 comprises a sawtooth shape, which can effectively reduce the influence of laser diffraction on the electrode connecting line 120 at the edge of the first light shielding part.

[0104] Figure 28 A schematic diagram of a display device according to an embodiment of the present application.

[0105] Referring to Figure 28 The display device 200 according to an embodiment of the present application comprises the display panel 100 according to any one of the embodiments described above. The display device 200 according to an embodiment of the present application can be a mobile phone. In addition, the display device 200 according to an embodiment of the present application can also be a computer, a television, or other electronic products. The first light shielding part 110 is used to protect the electrode connecting line 120 from being etched by laser, and the first light shielding part 110 is located between the electrode connecting line 120 and any film layer of the substrate 101, which reduces the distance between the first light shielding part 110 and the electrode connecting line 120 in a direction perpendicular to the plane on which the display panel 100 is located, thereby reducing the influence of laser diffraction on the width of the electrode connecting line 120.

[0106] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized by, The display area of the display panel comprises a first region; the display panel comprises: a substrate; a plurality of light emitting components disposed on one side of the substrate; a cathode layer comprising cathodes of the light emitting components; in the first region, the display panel comprises: a hollow portion penetrating the cathode layer in a direction perpendicular to the plane of the display panel, and the hollow portion is located between adjacent light emitting components; an electrode connecting line connecting cathodes of two adjacent light emitting components; a first light shielding portion located in at least any one film layer between the electrode connecting line and the substrate, and the first light shielding portion at least partially overlaps the electrode connecting line in a direction perpendicular to the plane of the display panel, and the first light shielding portion does not overlap at least part of the hollow portion; a second light shielding portion disposed in any one film layer between the light emitting component and the substrate, and the second light shielding portion at least partially overlaps the light emitting component in a direction perpendicular to the plane of the display panel; wherein the first light shielding portion and the second light shielding portion are different layers, and at least partially overlap in a direction perpendicular to the plane of the display panel; at least one of the first light shielding portion and the second light shielding portion is provided with a jumper hole; the display panel further comprises a third light shielding portion in the first region, the third light shielding portion is disposed on the side of the jumper hole close to the substrate, and covers the jumper hole in a direction perpendicular to the plane of the display panel; the third light shielding portion is disposed on the side of the jumper hole close to the substrate.

2. The display panel of claim 1, wherein: the display area further comprises a second region adjacent to the first region, and the light transmittance of the second region is less than that of the first region; in the second region, the display panel comprises: at least one light shielding layer located in at least any one film layer between the light emitting component and the substrate, and at least partially overlapping the cathode layer in a direction perpendicular to the plane of the display panel.

3. The display panel of claim 1, wherein, The distance between the first light shielding portion and the electrode connecting line in a direction perpendicular to the plane of the display panel is less than the distance between the second light shielding portion and the cathode.

4. The display panel of claim 1, wherein: the projections of the first light shielding portion and the second light shielding portion on the substrate at least partially overlap in a direction perpendicular to the plane of the display panel, and the length of the overlapping part of the projections of the first light shielding portion and the second light shielding portion on the substrate in a first direction is L; the distance between the first light shielding portion and the second light shielding portion in a direction perpendicular to the plane of the display panel is H, L=H tanθ, 0<θ≤30°; wherein the first direction is parallel to the electrode connecting line between two adjacent light emitting components.

5. The display panel of claim 1, wherein, A first orthographic projection of the second light shielding part is a second orthographic projection of the light emitting part in a direction perpendicular to a plane where the display panel is located. The first orthographic projection covers the second orthographic projection, and the shape of the first orthographic projection is similar to the shape of the second orthographic projection.

6. The display panel of claim 1, wherein, A first orthographic projection of the second light shielding part is a second orthographic projection of the light emitting part in a direction perpendicular to a plane where the display panel is located, and a third orthographic projection of the first light shielding part. The first orthographic projection includes a first sub-projection and a second sub-projection connected to each other; the first sub-projection covers the second orthographic projection, and the shape of the first sub-projection is similar to the shape of the second orthographic projection; the second sub-projection extends from the first sub-projection to the direction of the third orthographic projection, and the second sub-projection partially overlaps with the third orthographic projection.

7. The display panel of claim 1, wherein, The first light shielding part is disposed in a film layer between the substrate and the anode of the light emitting part. The distance between two adjacent anodes is greater than or equal to the width of the first light shielding part in the first direction, and the first direction is parallel to the electrode connecting line between two adjacent light emitting parts.

8. The display panel of claim 1, wherein, The distance between two adjacent anodes is greater than or equal to the width of the first light shielding part in the first direction, and the first direction is parallel to the electrode connecting line between two adjacent light emitting parts.

9. The display panel of claim 8, wherein, The width of the second light shielding part in the first direction is greater than or equal to the width of the anode in the first direction, and D2-d2≥d1-D1.

10. The display panel of claim 1, wherein, The display panel further includes a fourth light shielding part on the side of the first light shielding part facing the substrate; the fourth light shielding part includes silicon, and the first light shielding part includes metal.

11. The display panel of claim 10, wherein, The orthographic projection of the first light shielding part in a direction perpendicular to the plane where the display panel is located at least partially protrudes from the orthographic projection of the fourth light shielding part in a direction perpendicular to the plane where the display panel is located.

12. The display panel of claim 1, wherein, The display panel further includes a circuit unit and a signal line electrically connected to the circuit unit; the second light shielding part is disposed in the same layer as at least part of the structure in the circuit unit and / or the signal line.

13. The display panel of claim 1, wherein, At least part of the edge of the first light shielding part includes a concave-convex structure.

14. A display device comprising: The display device includes the display panel of any one of claims 1-13.

Images