Display panel and display device
By setting a cross-extending first organic structure and a raised structure in the non-display area of the OLED display panel, the problem of residual conductive layer during the etching process is solved, the display yield of the display panel is improved, and display abnormalities caused by short circuit of the conductive block are avoided.
Patent Information
- Application Number
- CN202111633818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2041-12-29
AI Technical Summary
In the packaging design of OLED display panels, the conductive layer is likely to remain on the side of the dam structure during the etching process, causing short circuits between different functional signal lines and display abnormalities.
In the gap between the first conductive layer and the second conductive layer in the non-display area, a cross-extended first organic structure is adopted, and a raised structure is provided at its edge to increase the residual edge length of the conductive layer, reduce the probability of the conductive layer forming a continuous structure in the gap, and reduce the risk of electrical conduction of the conductive block.
It effectively reduces the residual conductive layer in the gap, reduces the risk of short circuit of the conductive block, improves the display yield of the display panel, and avoids display abnormalities.
Smart Images

Figure CN114335107B_ABST
Abstract
Description
Technical field
[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. [Background Technology]
[0002] Organic Electroluminescence Display (OLED) display panels have been widely used due to their excellent properties, including high brightness, high efficiency, wide viewing angle, and self-luminescence. In OLED packaging design, a dam structure is required in the non-display area to block external moisture and oxygen. The dam structure typically includes organic structures to ensure a high height, thereby increasing the intrusion path for moisture and oxygen.
[0003] The design of the dam structure makes it easy for the conductive layer to remain on the side of the dam structure during the etching process. The residual conductive layer will cause short circuits of different functional signal lines, ultimately leading to display abnormalities.
[0004] Application Contents
[0005] In view of this, embodiments of the present application provide a display panel and a display device.
[0006] In a first aspect, the present application provides a display panel, comprising a display area and a non-display area. Along a thickness direction of the display panel, the display panel comprises a base substrate, a first conductive layer, and a second conductive layer;
[0007] In the display area, the first conductive layer is located on a side of the second conductive layer away from the base substrate;
[0008] In the non-display area, the second conductive layer includes a first conductive block and a second conductive block; a first gap is included between the first conductive block and the second conductive block, and the first gap extends along a first direction;
[0009] The non-display area further includes a first organic structure extending along a second direction, the film layer where the first organic structure is located is located on a side of the film layer where the first conductive layer is located close to the base substrate, and the second direction intersects the first direction;
[0010] Along the thickness direction of the display panel, a portion of the first slit overlaps with the first organic structure; and at least a portion of an edge of the first organic structure that overlaps with the first slit includes a protruding structure.
[0011] In an implementation of the first aspect, a portion of at least one edge of the first organic structure that overlaps with the first gap includes at least two protruding structures arranged along the second direction.
[0012] In an implementation of the first aspect, the display panel further includes a third conductive layer;
[0013] In the display area, the third conductive layer is located on a side of the second conductive layer close to the base substrate;
[0014] In the non-display area, a first insulating layer is included between the third conductive layer and the second conductive layer, and the third conductive layer includes a plurality of first signal lines;
[0015] Wherein, along the thickness direction of the display panel, the projection of at least part of the first signal line overlaps with the projection of the first gap, the projection of the first conductive block, and the projection of the second conductive block.
[0016] In an implementation manner of the first aspect, along a thickness direction of the display panel, at least one first signal line overlaps with at least one protruding structure in a region where the first gap is located.
[0017] In an implementation of the first aspect, an edge of the first conductive block close to the first slit is a first edge, and an edge of the second conductive block close to the first slit is a second edge;
[0018] The protruding structure overlapping with the first signal line at the first gap includes the protruding structure overlapping with the first edge and / or the protruding structure overlapping with the second edge.
[0019] In an implementation of the first aspect, the display area includes a plurality of data lines, and the first signal line is electrically connected to the data lines;
[0020] The display area further includes a pixel circuit and a power line. The power line is electrically connected to the pixel circuit, and the first conductive block and the second conductive block are electrically connected to the power line.
[0021] In an implementation manner of the first aspect, the first organic structure includes two opposite third edges, and portions of the two third edges overlapping the first gap both include the protruding structure.
[0022] In an implementation of the first aspect, the non-display area includes at least two parallel first organic structures;
[0023] In the two adjacent third edges respectively belonging to two adjacent first organic structures, the protruding structures included in one third edge and the protruding structures included in the other third edge are alternately arranged in a projection along the thickness direction of the display panel.
[0024] In an implementation of the first aspect, in the two adjacent third edges belonging to two adjacent first organic structures, a protruding structure included in one third edge is cross-arranged with a protruding structure included in another third edge in a projection along the thickness direction of the display panel.
[0025] In an implementation of the first aspect, the film layer where the first organic structure is located is located between the film layer where the second conductive layer is located and the film layer where the first conductive layer is located.
[0026] In an implementation of the first aspect, the first conductive layer located in the display area includes a first electrode, and the first electrode is an anode or a cathode of the light-emitting device.
[0027] In a second aspect, the present application provides a display device, comprising the display panel provided in the first aspect.
[0028] In the display panel and display device provided by the embodiments of the present application, in the portion where the first organic structure overlaps the first gap, if the projection of the side surface of the first organic structure is a curved or broken line structure, the length of the portion of the side surface of the first organic structure located between the adjacent first and second conductive blocks is increased. Even if the first conductive layer is prepared after the second conductive layer and the first organic structure are prepared, and there is a residue of the first conductive layer within the first gap, the increased length of the edge of the first organic structure, where the probability of the first conductive layer residue remaining is the highest, greatly reduces the probability of the residue of the first conductive layer forming a continuous structure within the first gap, thereby reducing the risk of electrical conduction between the first and second conductive blocks. This ensures the display yield of the display panel and display device.
Brief Description of the Drawings
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0030] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application;
[0031] Figure 2 for Figure 1 A cross-sectional view of the display panel along the MM' direction;
[0032] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle CC area;
[0033] Figure 4A schematic cross-sectional view of a display panel provided in an embodiment of the present application;
[0034] Figure 5 for Figure 1 Another cross-sectional view of the display panel along the MM' direction;
[0035] Figure 6 for Figure 1 Another partial enlarged schematic diagram of the middle CC area;
[0036] Figure 7 A partially enlarged schematic diagram of a display panel provided in an embodiment of the present application;
[0037] Figure 8 A schematic projection diagram of a first organic structure in a display panel provided in an embodiment of the present application;
[0038] Figure 9 A schematic projection diagram of a first organic structure in another display panel provided in an embodiment of the present application;
[0039] Figure 10 A schematic diagram of a display device provided in an embodiment of the present application. [Specific implementation method]
[0040] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.
[0041] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0042] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.
[0043] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.
[0044] In the description of this specification, it is necessary to understand that the words "substantially", "approximately", "approximately", "about", "roughly", "generally" and the like described in the claims and embodiments of this application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.
[0045] It should be understood that although the terms third, second, first, etc. may be used in embodiments of the present application to describe directions, conductive blocks, signal lines, etc., these directions, conductive blocks, signal lines, etc. should not be limited to these terms. These terms are merely used to distinguish directions, conductive blocks, signal lines, etc. from each other. For example, without departing from the scope of the embodiments of the present application, the first direction may also be referred to as the second direction, and similarly, the second direction may also be referred to as the first direction.
[0046] The applicant in this case has provided a solution to the problems existing in the prior art through careful and in-depth research.
[0047] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application is shown. Figure 2 for Figure 1 A cross-sectional view of the display panel along the MM' direction is shown. Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle CC area.
[0048] like Figure 1 and Figure 2 As shown, the display panel 001 provided in the embodiment of the present application includes a display area AA and a non-display area BB. The display area AA is used for light-emitting display, and the non-display area BB is an area for setting peripheral circuits, setting peripheral signal lines and packaging as a display panel.
[0049] In addition, the display panel 001 includes a base substrate 10 , a first conductive layer 20 , and a second conductive layer 30 arranged along a thickness direction Z of the display panel 001 . The first conductive layer 20 and the second conductive layer 30 are arranged on the same side of the base substrate 10 .
[0050] Please refer to Figure 1 and Figure 2 In the display area AA, the first conductive layer 20 is located on the side of the second conductive layer 30 away from the base substrate 10. That is, both the first conductive layer 20 and the second conductive layer 30 include portions located in the display area AA, and during the manufacturing process of the display panel 001, the process step of preparing the first conductive layer 20 is performed after the process step of preparing the second conductive layer 30.
[0051] Please continue to refer to Figure 2In the non-display area BB, the second conductive layer 30 includes a first conductive block 31 and a second conductive block 32, and a first gap 301 is formed between the first conductive block 31 and the second conductive block 32. The first gap 301 extends along the first direction X. In other words, at least a portion of the second conductive layer 30 in the non-display area BB is in the form of a block structure, and a first gap 301 extending along the first direction X exists between adjacent block structures.
[0052] The non-display area BB further includes a first organic structure 41 extending along a second direction Y. The film layer in which the first organic structure 41 is located is located on a side of the film layer in which the first conductive layer 20 is located that is closer to the base substrate 10. The second direction Y intersects the first direction X. In other words, during the manufacturing process of the display panel 001, the process step of forming the first conductive layer 20 is performed after the process step of forming the first organic structure 41.
[0053] In addition, along the thickness direction of the display panel 001 , a portion of the first slit 301 overlaps with the first organic structure 41 , that is, a portion of the first slit 301 includes the first organic structure 41 and a portion of the first slit 301 does not include the first organic structure 41 .
[0054] In a corresponding technical solution of the present application, the non-display area BB of the display panel 001 includes an organic layer reduction area. The organic layer reduction area can be located within the non-display area BB, and the first organic structure 41 does not overlap with the organic layer reduction area along the thickness direction of the display panel 001. For example, the organic layer reduction area is located on both sides of the first organic structure 41, or in other words, the first organic structure 41 is located between two adjacent organic layer reduction areas. The non-overlapping portion of the first slit 301 and the first organic structure 41 overlaps with the organic layer reduction area, and the overlapping portion of the first slit 301 and the first organic structure 41 does not overlap with the organic layer reduction area.
[0055] A first gap 301 is provided between the first conductive block 31 and the second conductive block 32 in the non-display area BB. This means that the first conductive block 31 and the second conductive block 32 are separated and electrically insulated from each other. However, after the second conductive layer 30 is formed, when the first conductive layer 20 is formed, etching is required. Due to etching precision, residues of the first conductive layer 20 are likely to form along the sides of the first organic structure 41. When the residues of the first conductive layer 20 accumulate to a certain extent within the first gap 301 along the sides of the first organic structure 41, electrical connection can be established between the first conductive block 31 and the second conductive block 32 on both sides of the first gap 301.
[0056] In the display panel provided in the embodiment of the present application, at least the portion of the edge of the first organic structure 41 that overlaps with the first slit 301 includes a protruding structure 410. It should be noted that the edge of the first organic structure 41 refers to a side surface of the first organic structure 41, and specifically may also refer to a bottom edge of the side surface of the first organic structure 41.
[0057] That is, in the portion where the first organic structure 41 overlaps the first slit 301 , the projection of the side surface of the first organic structure 40 is a curve or a broken line structure, and the length of the portion of the side surface of the first organic structure 40 between the adjacent first conductive block 31 and the second conductive block 32 increases.
[0058] In the display panel provided in the embodiment of the present application, even if the first conductive layer 20 is prepared after the second conductive layer 30 and the first organic structure 41 are prepared and there is residue of the first conductive layer 10 in the first slit 301, the length of the edge of the first organic structure 41 where the probability of residue of the first conductive layer 20 is the highest is increased. This greatly reduces the probability that the residue of the first conductive layer 20 in the first slit 301 forms a continuous structure, thereby reducing the risk of electrical conduction between the first conductive block 31 and the second conductive block 32.
[0059] In one embodiment of the present application, Figure 1 and Figure 2 As shown, the film layer where the first organic structure 41 is located is located between the film layer where the second conductive layer 30 is located and the film layer where the first conductive layer 20 is located.
[0060] Specifically, if Figure 1 and Figure 2 As shown, the display panel 001 includes a first organic layer 40 , and the first organic layer 40 includes a portion located in the display area AA and a portion located in the non-display area BB.
[0061] In which, in the display area AA, the first organic layer 40 is located between the first conductive layer 20 and the second conductive layer 30, that is, the portion 42 of the first organic layer 40 arranged in the display area AA can serve as an insulating layer between the portion of the first conductive layer 20 located in the display area AA and the portion of the second conductive layer 30 located in the display area AA.
[0062] In the non-display area BB, the first organic layer 40 includes a first organic structure 41. The first organic structure 41 is part of a dam structure disposed in the non-display area BB. Specifically, the portion of the first organic layer 40 located in the dam structure is the first organic structure 41. The dam structure can protect the display panel 001 from external water and oxygen corrosion.
[0063] Specifically, either side of the dam structure is an organic layer reduction region, and the dam structure may also include other organic structures in addition to the first organic structure 41. The first organic structure 41 is not provided in the organic layer reduction region, and other organic structures may also be provided. When the dam structure and the organic layer reduction region are alternately provided, the dam structure can prevent water and oxygen from directly entering the display area AA, and the organic layer reduction region, which does not include an organic film layer, can cut off the path for water and oxygen to enter the display area AA from the edge of the display panel, thereby effectively blocking external water and oxygen. In addition, the dam structure achieved by stacking multiple organic structures has a greater height, which increases the path for water and oxygen to enter the display panel 001, effectively preventing water and oxygen from outside the display panel 001 from corroding the internal components of the display panel.
[0064] It should be noted that the dam structure may further include an inorganic structure stacked with the first organic structure 41 .
[0065] In this implementation, both the dam structure and the organic layer reduction area may be provided at the encapsulation position of the non-display area BB.
[0066] Understandably, as the height of the dam structure increases, the probability of the first conductive layer 20 remaining at the bottom of the side edges of the dam structure during etching increases. However, the design of the present application can still effectively reduce the risk of electrical conduction between the first conductive block 31 and the second conductive block 32 caused by the remaining first conductive layer 20 in the first gap 301.
[0067] Figure 4 A schematic cross-sectional view of a display panel provided in an embodiment of the present application.
[0068] In one embodiment of the present application, the first conductive layer 20 located in the display area AA includes a first electrode 21 . The first electrode 21 may be an anode or a cathode of the light emitting device 02 disposed in the display area AA.
[0069] Please refer to Figure 4 The display area AA of the display panel 001 provided in the embodiment of the present application may include a pixel circuit layer 1a and a light-emitting layer 2a, and a planarization layer is included between the pixel circuit layer 1a and the light-emitting layer 2a. The planarization layer may specifically be the portion of the first organic layer 40 located in the display area AA.
[0070] The light-emitting layer 2a includes multiple light-emitting devices 02, which can be either organic light-emitting diodes (OLEDs) or micro diodes. Each light-emitting device 02 includes an anode, a cathode, and a light-emitting material layer located between the anode and cathode. The first electrode 21 is either the anode or the cathode. In other words, the first conductive layer 20 is provided on the same layer as the anode or cathode of the light-emitting device 02.
[0071] It should be noted that Figure 4The diagram shows that the first electrode 21 is the one of the anode and cathode of the light emitting device 02 that is closer to the substrate 10. Alternatively, the first electrode 21 may be the one of the anode and cathode of the light emitting device 02 that is farther from the substrate 10.
[0072] In one embodiment of the present application, the display area AA further includes a pixel circuit 01 and a power line. The power line is electrically connected to the pixel circuit 01 , and the first conductive block 31 and the second conductive block 32 are electrically connected to the power line.
[0073] In the present application, the pixel circuit layer 1 a may include a plurality of pixel circuits 01 , and the output end of the pixel circuit 01 is electrically connected to the light-emitting device 02 .
[0074] The pixel circuit 01 causes the light emitting device 02 to emit light, which requires a positive power supply signal and a negative power supply signal. Figure 1 and Figure 4 The power lines electrically connected to the pixel circuit 01 in the display area AA include a first power signal line 33 and a second power signal line 34, and the first power signal line 33 is used to transmit a positive power signal, and the second power signal line 34 is used to transmit a negative power signal.
[0075] Among them, the first conductive block 31 can be electrically connected to the first power signal line 33 and transmit a positive power signal to the first power signal line 33; the second conductive block 32 can be electrically connected to the second power signal line 34 and transmit a negative power signal to the second power signal line 34.
[0076] It should be noted that the first power signal line 33 and the second power signal line 34 can be arranged on the same layer as the first conductive block 31 and the second conductive block 32, that is, the portion of the first conductive layer 20 located in the display area AA includes the first power signal line 33 and the second power signal line 34, and the portion located in the non-display area BB includes the first conductive block 31 and the second conductive block 32.
[0077] Figure 5 for Figure 1 Another cross-sectional view of the display panel along the MM' direction is shown. Figure 6 for Figure 1 Another partial enlarged schematic diagram of the middle CC area.
[0078] Please combine Figure 4 、 Figure 5 and Figure 6In one embodiment of the present application, the display panel further includes a third conductive layer 50. In the display area AA, the third conductive layer 50 is located on the side of the second conductive layer 30 that is closer to the base substrate 10. In the non-display area BB, a first insulating layer 60 is included between the third conductive layer 50 and the second conductive layer 30, and the third conductive layer 50 includes a plurality of first signal lines 51. In other words, the film layer where the third conductive layer 50 is located is located between the film layer where the second conductive layer 30 is located and the base substrate 10, and the third conductive layer 50 includes a portion located in the display area AA and a portion located in the non-display area BB. The portion of the third conductive layer 50 located in the non-display area BB includes a plurality of first signal lines 51.
[0079] Among them, such as Figure 6 As shown, along the thickness direction of the display panel, the projection of at least a portion of the first signal line 51 overlaps with the projection of the first slit 301, the projection of the first conductive block 31, and the projection of the second conductive block 32. In other words, at least a portion of the first signal line 51 extends from the first conductive block 31 to the second conductive block 32 and passes through the first slit 301 between the first conductive block 31 and the second conductive block 32.
[0080] During the preparation of the first conductive layer 20, the first signal lines 51, the first conductive blocks 31 / second conductive blocks 32, and the first insulating layer 60 located in the non-display area BB are all completed. The etching process performed on the first conductive layer 20 at this point over-etches the portions of the first insulating layer 60 not covered by the first conductive blocks 31 / second conductive blocks 32 and the first organic structure 41 to a thickness less than a predetermined value. Consequently, the portions of the first insulating layer 60 located in the region where the first gaps 301 are located and not covered by the first organic structure 41 have a smaller thickness. The first signal lines 51, the first conductive blocks 31, and the second conductive blocks 32 located above and below the first insulating layer 60 transmit different signals, which can easily lead to breakdown in the thinner portions of the first insulating layer 60, specifically, the portions of the first insulating layer 60 located in the region where the first gaps 301 are located and not covered by the first organic structure 41.
[0081] At this time, the residual first conductive layer 20 in the area where the first gap 301 is located may be electrically connected to the first signal line 51 through the position where the first insulating layer 60 is broken down. If the first conductive layer 20 is electrically connected to the first signal line 51 and the first conductive block 31 / the second conductive block 32 at the same time, display problems will occur.
[0082] In the embodiment of the present application, the first organic structure 41 is provided as a raised structure 410 at the edge of the first slit 301. During the preparation process of the first conductive layer 20, the raised structure 410 can protect the first insulating layer 60, thereby reducing the risk of over-etching at locations near the first organic structure 41. This reduces the probability of over-etching the first insulating layer 60 at locations in the first slit 301 where residues of the first conductive layer 20 are likely to form. Consequently, during the etching process of the first conductive layer 20, there is essentially no residue of the first conductive layer 20 that can be electrically connected to the first signal line 51, reducing the risk of electrical conduction between the first signal line 51 and the first conductive block 31 / second conductive block 32.
[0083] In addition, by providing the protruding structure 410, the possibility of the residue of the first conductive layer 20 at the first gap 30 being a longer continuous structure is reduced, and the risk of the first conductive block 31 / the second conductive block 32 and the first signal line 51 being electrically connected by the same residue of the first conductive layer 20 is also reduced.
[0084] Further, please continue to combine Figure 4 、 Figure 5 and Figure 6 , the display area AA includes a plurality of data lines DL, and the first signal line 51 is electrically connected to the data lines DL.
[0085] The data line DL is electrically connected to the pixel circuit 01 and can transmit a light-emitting data signal for the pixel circuit 01. The first signal line 51 is electrically connected to the data line DL and can transmit a light-emitting data signal for the data line DL. The first signal line 51 can be electrically connected to the data line DL directly or through a multi-way selection switch.
[0086] It should be noted that the first signal line 51 and the data line DL can be arranged in different layers or in the same layer. Figure 4 As shown, the data line DL is arranged on the same layer as the first power signal line 33 and the second power signal line 34, and the first power signal line 33 and the second power signal line 34 are arranged on the same layer as the first conductive block 31 and the second conductive block 32. Then the data line DL is arranged on the same layer as the second conductive layer 30, but on a different layer from the third conductive layer 50.
[0087] In addition, the portion of the third conductive layer 50 in the display area AA may include a scan line or a capacitor plate.
[0088] When the first signal line 51 is electrically connected to the data line DL, the potential transmitted by the first signal line 51 has a wide range of values, for example, between -6V and 6V. When the first conductive block 31 is electrically connected to the first power signal line 33 and the second conductive block 32 is electrically connected to the second power signal line 34, the first conductive block 31 and the second conductive block 32 each transmit a constant potential, for example, the second conductive block 32 transmits a voltage of -3.5V. Consequently, the portion of the first insulating layer 60 located in the first gap 301 is at great risk of electrical breakdown.
[0089] By adopting the technical solution of the present application, the risk of the luminous data voltage transmitted by the first signal line 51 being pulled up by the first conductive block 31, resulting in a dark display, can be reduced; the risk of the luminous data voltage transmitted by the first signal line 51 being pulled down by the second conductive block 32, resulting in a bright display, can also be reduced.
[0090] In one implementation of this embodiment, Figure 6 As shown, along the thickness direction of the display panel, at least one first signal line 51 overlaps with at least one raised structure 41 in the region where the first slit 301 is located. When the raised structure 41 overlaps with the first signal line 51 at the first slit 301, the raised structure 41 can prevent the overlapping portion of the first signal line 51 from being electrically connected by the remnants of the first conductive layer 20. Furthermore, the raised structure 41 can prevent the portion of the first signal line 51 on one side from forming a continuous remnant of the first conductive layer 20 with the first conductive block 31 or the second conductive block 32 on the other side.
[0091] Figure 7 A partially enlarged schematic diagram of a display panel provided in an embodiment of the present application.
[0092] Further, if Figure 7 As shown, the edge of the first conductive block 31 close to the first slit 301 is a first edge 310, and the edge of the second conductive block 32 close to the first slit 301 is a second edge 320. The protruding structure 410 overlapping with the first signal line 51 at the first slit 301 includes a protruding structure 410 overlapping with the first edge 310 and / or a protruding structure 410 overlapping with the second edge 320.
[0093] When the raised structure 410 that overlaps with the first signal line 51 at the first gap 301 also overlaps with the first conductive block 31 and / or the second conductive block 32, the raised structure 410 can ensure that the portion of the first edge 310 / second edge 320 that intersects with the first signal line 51 is not electrically connected to the residual portion of the first conductive layer 20.
[0094] In one embodiment of the present application, Figure 1 、 Figure 3 、 Figure 6 and Figure 7 As shown, the portion of at least one edge of the first organic structure 41 that overlaps the first slit 301 includes at least two protruding structures 410 arranged along the second direction Y. This increases the length of the edge of the first organic structure 41 within the first slit 301, reducing the probability of the first conductive layer 20 remaining in the first slit 301 forming a continuous structure. Furthermore, the multiple protruding structures 410 form a plurality of concave-convex structures on the edge, reducing the risk of the first conductive layer 20 remaining in a continuous structure.
[0095] In one embodiment of the present application, Figure 7 As shown, the first organic structure 41 includes two opposite third edges 4100 , and portions where the two third edges 4100 of the first organic structure 41 overlap with the first slit 301 both include a protruding structure 410 .
[0096] In one implementation of this embodiment, Figure 7 As shown, in any edge of the first organic structure 41 that overlaps with the first slit 301, the portion overlapping with the first slit 301 includes at least two protruding structures 410 arranged along the second direction Y. That is, any third edge 4100 of a first organic structure 41 includes at least two protruding structures 410 arranged along the second direction Y.
[0097] Figure 8 A schematic projection diagram of a first organic structure in a display panel provided in an embodiment of the present application.
[0098] For further information, please refer to Figure 8 The non-display area BB includes at least two parallel first organic structures 41. Furthermore, in two adjacent third edges 4100 belonging to two adjacent first organic structures 41, the projections 410 included in one third edge 4100 are alternately arranged with the projections 410 included in the other third edge 4100, as projected along the thickness direction of the display panel. For example, Figure 8 In the illustrated upper and lower adjacent first organic structures 41, the raised structures 410 included in the lower third edge 4100 of the upper first organic structure 41 are alternately arranged with the raised structures 410 included in the upper third edge 4100 of the lower first organic structure 41. The adjacent first organic structures 310 can collectively increase the difficulty of forming a continuous structure by causing the first conductive layer 20 remaining in the first gap 301 to remain between the first conductive block 31 and the second conductive block 32.
[0099] Figure 9 A schematic projection diagram of a first organic structure in another display panel provided in an embodiment of the present application.
[0100] For further information, please refer to Figure 9 , in two adjacent third edges 4100 belonging to two adjacent first organic structures 41, the projection along the thickness direction of the display panel is such that the protrusion structure 410 included in one third edge 4100 is arranged to intersect with the protrusion structure 410 included in the other third edge 4100. For example, Figure 8 In the illustrated upper and lower adjacent first organic structures 41, the protrusion structure 410 included in the lower third edge 4100 of the upper first organic structure 41 intersects the protrusion structure 410 included in the upper third edge 4100 of the lower first organic structure 41. The adjacent first organic structures 310 can collectively increase the path length between the first conductive block 31 and the second conductive block 32 in the first gap 301, thereby avoiding the problem of the protrusion structure 410 in the first organic structure 41 increasing the width of the non-display area BB.
[0101] Figure 10 A schematic diagram of a display device provided in an embodiment of the present application.
[0102] The embodiment of the present application provides a display device, such as Figure 10 As shown, it includes a display panel 001 provided in any of the above embodiments. The display device provided in the embodiment of the present application can be a mobile phone. In addition, the display device provided in the embodiment of the present application can also be a display device such as a computer or a television.
[0103] In the display device provided by the embodiment of the present application, the projection of the side surface of the first organic structure 40 in the portion where the first organic structure 41 overlaps the first slit 301 is a curved or zigzag structure. This increases the length of the portion of the side surface of the first organic structure 40 between the adjacent first conductive block 31 and second conductive block 32. This reduces the probability of the first conductive layer 20 remaining in the first slit 301 forming a continuous structure, and reduces the risk of electrical conduction between the first conductive block 31 and the second conductive block 32 in the non-display area BB, effectively preventing display defects in the display device.
[0104] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.
Claims
1. A display panel comprising a display area and a non-display area, characterized in that: Along the thickness direction of the display panel, the display panel includes a base substrate, a first conductive layer and a second conductive layer; In the display area, the first conductive layer is located on a side of the second conductive layer away from the base substrate; In the non-display area, the second conductive layer includes a first conductive block and a second conductive block; a first gap is included between the first conductive block and the second conductive block, and the first gap extends along a first direction; The non-display area further includes a first organic structure extending along a second direction, the film layer where the first organic structure is located is located on a side of the film layer where the first conductive layer is located close to the base substrate, and the second direction intersects the first direction; Along the thickness direction of the display panel, a portion of the first slit overlaps with the first organic structure; at least a portion of an edge of the first organic structure that overlaps with the first slit includes a protruding structure; The display panel further includes a third conductive layer; In the display area, the third conductive layer is located on a side of the second conductive layer close to the base substrate; In the non-display area, a first insulating layer is included between the third conductive layer and the second conductive layer, and the third conductive layer includes a plurality of first signal lines; Wherein, along the thickness direction of the display panel, the projection of at least part of the first signal line overlaps with the projection of the first gap, the projection of the first conductive block, and the projection of the second conductive block.
2. The display panel according to claim 1, wherein: A portion of at least one edge of the first organic structure overlapping the first gap includes at least two protruding structures arranged along the second direction.
3. The display panel according to claim 1 or 2, wherein: Along the thickness direction of the display panel, at least one first signal line overlaps with at least one protruding structure in an area where the first gap is located.
4. The display panel according to claim 3, wherein: The edge of the first conductive block close to the first gap is a first edge, and the edge of the second conductive block close to the first gap is a second edge; The protruding structure overlapping with the first signal line at the first gap includes the protruding structure overlapping with the first edge and / or the protruding structure overlapping with the second edge.
5. The display panel according to claim 1 or 2, wherein: The display area includes a plurality of data lines, and the first signal line is electrically connected to the data lines; The display area further includes a pixel circuit and a power line. The power line is electrically connected to the pixel circuit, and the first conductive block and the second conductive block are electrically connected to the power line.
6. The display panel according to claim 1, wherein: The first organic structure includes two opposite third edges, and portions of the two third edges overlapping the first gap both include the protruding structure.
7. The display panel according to claim 6, wherein: The non-display area includes at least two parallel first organic structures; In the two adjacent third edges respectively belonging to two adjacent first organic structures, the protruding structures included in one third edge and the protruding structures included in the other third edge are alternately arranged in a projection along the thickness direction of the display panel.
8. The display panel according to claim 7, wherein: In the two adjacent third edges respectively belonging to two adjacent first organic structures, the protruding structure included in one third edge is cross-arranged with the protruding structure included in the other third edge as projected along the thickness direction of the display panel.
9. The display panel according to claim 1, wherein: The film layer where the first organic structure is located is located between the film layer where the second conductive layer is located and the film layer where the first conductive layer is located.
10. The display panel according to claim 1, wherein The first conductive layer located in the display area includes a first electrode, which is an anode or a cathode of the light-emitting device.
11. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 10.
Citation Information
Patent Citations
Display device
CN107871714A