Display panel and display device

Abstract

Embodiments of the present application provide a display panel and a display device. The display panel comprises a display area and a non-display area, the non-display area comprising a power supply line, a power supply connecting line and a plurality of functional modules; the power supply line comprises a first power supply line and a second power supply line extending along a first direction, the first power supply line being located on a side of the second power supply line close to the display area; in a second direction, the functional modules are located between the first power supply line and the second power supply line; the second direction intersects the first direction; the power supply connecting line extends along the second direction, the first power supply line and the second power supply line being electrically connected through the power supply connecting line; in the first direction, the power supply connecting line is located between adjacent functional modules; the material of the power supply connecting line is the same as that of the power supply line. The present application can reduce the load on the power supply line.

Description

TECHNICAL FIELD

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

[0002] A power line and a functional module are arranged at a lower frame position of the display panel. Since an electrode in the functional module and the power line are made of the same layer and the same material, the power line is divided into two parts, i.e., a first power line and a second power line. The first power line and the second power line are connected by a connecting line. The resistance of the film layer where the connecting line is located is large, so that the load on the power line is large. Increasing the line width of the first power line and the second power line or increasing the line width of the connecting line can reduce the load on the power line. However, due to the design requirement of the narrow frame of the display panel, the line width cannot be increased indefinitely. The existing design cannot reduce the load on the power line without increasing the space area occupied by the power line. SUMMARY

[0003] Embodiments of the present application provide a display panel and a display device to solve the technical problem of reducing the load on the power line.

[0004] In a first aspect, embodiments of the present application provide a display panel including a display area and a non-display area, the non-display area including a power line, a power connecting line, and a plurality of functional modules.

[0005] The power line includes a first power line and a second power line extending along a first direction. The first power line is located on a side of the second power line close to the display area.

[0006] In a second direction, the functional modules are located between the first power line and the second power line. The second direction intersects the first direction.

[0007] The power connecting line extends along the second direction. The first power line and the second power line are electrically connected by the power connecting line. In the first direction, the power connecting line is located between adjacent functional modules. In addition,

[0008] The material of the power connecting line is the same as the material of the power line.

[0009] In a second aspect, based on the same inventive concept, embodiments of the present application also provide a display device including the display panel provided by any of the embodiments of the present application.

[0010] The display panel and the display device provided by the embodiments of the present application have the following beneficial effects: the material of the power connecting line is the same as the material of the power line. Without changing the design architecture of the power line and the functional module, the manufacturing material of the power connecting line is changed to reduce the resistance of the power connecting line. The load on the power line is reduced by reducing the resistance of the power connecting line. The line width of the signal line in the non-display area is not increased, which can meet the design requirement of the narrow frame. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a partial schematic diagram of an existing technology;

[0013] Figure 2 This is a partial schematic diagram of a display panel provided in an embodiment of the present invention;

[0014] Figure 3 for Figure 2 An enlarged schematic diagram of the central region Q1 location;

[0015] Figure 4 for Figure 3 Schematic diagram at the location of the tangent AA′;

[0016] Figure 5 This is a schematic diagram of another display panel film layer structure provided in an embodiment of the present invention;

[0017] Figure 6 This is a schematic diagram of another display panel film layer structure provided in an embodiment of the present invention;

[0018] Figure 7 for Figure 2 Another enlarged view of the central region Q1;

[0019] Figure 8 for Figure 2 Another enlarged view of the central region Q1;

[0020] Figure 9 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0021] Figure 10 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0022] Figure 11 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention;

[0023] Figure 12 This is a schematic diagram of a display device provided in an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0026] Figure 1 This is a partial schematic diagram of a prior art, such as... Figure 1 As shown, a power line 010 is provided in the non-display area NA of the display panel. The power line 010 includes a first power line 011 and a second power line 012, which are electrically connected via a power connection line 020. A functional module 030 and a functional signal line 040 are disposed between the first power line 011 and the second power line 012, and are electrically connected to the functional signal line 040. Some electrodes in the functional module 030 and the functional signal line 040 are made using the same film layer as the power line 010. To ensure that the power connection line 020 and the functional signal line 040 are insulated from each other, the power connection line 020 cannot be made using the same film layer as the power line 010, resulting in a higher resistance in the power connection line 020 and a larger load on the power line 010. The existing design cannot reduce the load on the power line 010 without increasing the space occupied by the power line.

[0027] To address the problems existing in the prior art, embodiments of the present invention provide a display panel in which the material of the power connection cable is the same as that of the power cord, so as to reduce the resistance of the power connection cable and thus reduce the load on the power cord.

[0028] Figure 2 This is a partial schematic diagram of a display panel provided in an embodiment of the present invention, such as... Figure 2As shown, the display panel includes a display area AA and a non-display area NA, the non-display area NA includes a power line 10, a power connection line 20 and a plurality of function modules 30. The power line 10 includes a first power line 11 and a second power line 12 extending along a first direction x, the first power line 11 is located on a side of the second power line 12 close to the display area AA. A light emitting device is arranged in the display area AA, the light emitting device can be an organic light emitting device or an inorganic light emitting device. A power signal line extending along a second direction y is also arranged in the display area AA, the second direction y intersects the first direction x; a pixel circuit is electrically connected with the power signal line, and the power signal line is electrically connected with the first power line 11 after extending from the display area AA to the non-display area NA.

[0029] In the second direction y, the function module 30 is located between the first power line 11 and the second power line 12; at least part of the electrodes in the function module 30 are located in the same layer as the power line 10, so that the first power line 11 and the second power line 12 need to reserve space for the function module 30 when being manufactured. For example, in some embodiments, the function module 30 includes a first transistor, and the source and drain of the first transistor are located in the same film layer as the power line 10. The function module 30 includes at least one of a gate-on circuit, a test short-circuit strip and an electrostatic test circuit. Each gate-on circuit includes at least two gate-on transistors, the gate-on transistors are electrically connected with a data line in the display area AA, and the gate-on transistors provide a data signal to the data line after being turned on. The electrostatic test circuit is connected with the data line and is used for electrostatic test before leaving the factory.

[0030] The power connection line 20 extends along the second direction y, and the first power line 11 and the second power line 12 are electrically connected through a plurality of power connection lines 20; in the first direction x, the power connection line 20 is located between adjacent function modules 30; wherein the material of the power connection line 20 is the same as the material of the power line 10.

[0031] The display panel provided by the embodiment of the present application sets the material of the power connection line 20 to be the same as the material of the power line 10, changes the manufacturing material of the power connection line 20 without changing the design architecture of the power line 10 and the function module 30, reduces the resistance of the power connection line 20, reduces the load on the power line 10 by reducing the resistance of the power connection line 20, does not increase the line width of the signal line in the non-display area NA, and can meet the design needs of narrow frame.

[0032] As Figure 2As shown, the display panel also includes functional signal lines 40 extending along a first direction x, and the functional module 30 is electrically connected to the functional signal lines 40. In this embodiment of the invention, the wiring method of the functional signal lines 40 is designed to ensure that the power connection lines 20 and 10 are made of the same material. In some embodiments, the film layer containing the functional signal lines 40 that overlap with the power connection lines 20 is designed so that the overlapping portion is not made of a low-resistance film layer, allowing the power connection lines 20 to be made of a low-resistance film layer, making the material of the power connection lines 20 the same as that of the power line 10. In other embodiments, the position of the functional signal lines 40 in the display panel is designed so that the power connection lines 20 no longer overlap with the functional signal lines 40, thus enabling the power connection lines 20 to be made of a low-resistance film layer, making the material of the power connection lines 20 the same as that of the power line 10.

[0033] In some embodiments, functional module 30 is described as including a gating circuit. Figure 3 for Figure 2 An enlarged schematic diagram of the central region Q1. Figure 4 for Figure 3 A schematic diagram showing the location of the tangent line AA′. (See diagram below.) Figure 3 As shown, the functional module 30 includes six first transistors T1, each comprising a gate g, a source s, and a drain d. The first transistor T1 is a selection transistor; its drain d is connected to a data line within the display area AA via a data lead 51, and its source s is connected to a data signal port via a common line 52. A functional signal line 40 extending along the first direction x is also provided within the non-display area NA. The gate g of the first transistor T1 is electrically connected to the functional signal line 40, which controls the on / off state of the connected first transistor T1. The functional signal line 40 is located between the first power line 11 and the second power line 12, and it is insulated from and crosses the power connection line 20.

[0034] like Figure 4As shown, the display panel includes a substrate 00 and a semiconductor layer 70, a first metal layer 71, a second metal layer 72, and a third metal layer 73 located above the substrate 00. The active layer w of the first transistor T1 is located in the semiconductor layer 70, the gate g of the first transistor T1 is located in the first metal layer 71, the source s and the drain d of the first transistor T1 are located in the third metal layer 73, and the power line 10 is located in the third metal layer 73. The power connection line 20 overlapping with the functional signal line 40 is located in the third metal layer 73, that is, the power connection line 20 and the power line 10 are located in the same film layer. In the prior art, the functional signal line 40 and the power line 10 with the same extension direction are made in the same film layer, which leads to that the power connection line 20 cannot be made in the same film layer as the power line 10. The embodiment of the present application gives priority to the scheme of reducing the load on the power line 10 in the design, and sets the power connection line 20 and the power line 10 in the same film layer from the perspective of reducing the load on the power line 10, so that the material of the power connection line 20 is the same as that of the power line 10, and the load on the power line 10 is reduced by reducing the resistance of the power connection line 20.

[0035] In some embodiments, the material of the power line 10 includes aluminum and titanium. Optionally, the power line 10 is a three-layer structure of titanium / aluminum / titanium. The third metal layer 73 is a three-layer structure of titanium / aluminum / titanium, the material of the first metal layer 71 includes metal molybdenum, and the material of the second metal layer 72 is the same as that of the first metal layer 71.

[0036] The power connection line 20 and the power line 10 are located in the same film layer, so that the power connection line 20 and the power line 10 can be made in the same process, so that the material of the power connection line 20 is the same as that of the power line 10. In other embodiments, the power connection line 20 and the power line 10 are connected through a via on an insulating layer, and the power connection line 20 and the power line 10 are made separately. In the process, the same material as the power line 10 is used to make the power connection line 20, so that the material of the power connection line 20 is the same as that of the power line 10, so as to reduce the resistance of the power connection line 20 and thus reduce the load on the power line 10.

[0037] In some embodiments of the present application, the power connection line 20 and the power line 10 are located in the same film layer, and new wiring design is considered for the functional signal line 40 to ensure that the functional signal line 40 and the power connection line 20 with different extension directions are insulated from each other.

[0038] In some embodiments, as shown in FIG. 2, the power connection line 20 is located in the third metal layer 73, and the power line 10 is located in the fourth metal layer 74. Figure 3 and Figure 4As shown, the functional signal line 40 includes a first functional signal line 41, which is located in the second metal layer 72. The first functional signal line 41 and the power line 10 are located in different film layers, achieving insulation between the first functional signal line 41 and the power connection line 20. In conventional designs, signal lines extending in the same direction are fabricated using the same film layer. However, this invention employs an unconventional design, placing the first functional signal line 41 and the power line 10, which extends in the same direction, in different film layers. This avoids the first functional signal line 41 occupying the third metal layer 73, allowing the power connection line 20 to be located in the same film layer as the power line 10, thereby reducing the load on the power line 10.

[0039] In some embodiments, the display panel further includes functional connection lines electrically connected to the functional module 30. These functional connection lines are signal lines extending along a second direction y from the functional module 30, and they overlap with at least a portion of the functional signal lines 40. Taking a functional module including a gating circuit as an example, the functional module 30 includes a first transistor T1, such as... Figure 3 As shown, the functional connection line 60 extends along the second direction y, and overlaps with the first functional signal line 41. The functional connection line 60 includes a common line 52 and a pull line 53. The pull line 53 connects the gate g of the first transistor T1 and the functional signal line 40, and the common line 52 connects the source s of the first transistor T1 and the data signal port. One of the first functional signal line 41 and the functional connection line 60 is located on the same layer as the gate g of the first transistor T1. Figure 3 As can be seen, the pull wire 53 is directly connected to the gate g of the first transistor T1, that is... Figure 3 The schematic diagram shows that the functional connection line 60 and the gate g of the first transistor T1 are located on the same layer. However, the first functional signal line 41 and the functional connection line 60 are located on different film layers, and the pull wire 53 in the first functional signal line 41 and the functional connection line 60 are connected through a via on the insulating layer.

[0040] like Figure 3 As shown, the pull wire 53 overlaps with at least a portion of the first functional signal line 41, while the common wire 52 overlaps not only with the first functional signal line 41 but also with the second power line 12. The common wire 52 can be divided into a first sub-segment and a second sub-segment, wherein the first sub-segment overlaps with the first functional signal line 41, and the second sub-segment overlaps with the second power line 12. When the first sub-segment and the power line 10 are located in the same layer, the second sub-segment needs to be switched to another film layer. Therefore, in some embodiments, the wiring method of the common wire 52 is relatively more complex than that of the pull wire 53.

[0041] The following example illustrates the film layers containing the first functional signal line 41 and the functional connection line 60, using the film layer structure of the display panel as an example.

[0042] In some embodiments, Figure 5 Another schematic diagram of a display panel film layer structure is provided in an embodiment of the present application, as shown in Figure 5 The display panel includes a semiconductor layer 70, a first metal layer 71, a second metal layer 72, and a third metal layer 73 above the substrate 00, the active layer of the second transistor T2 in the pixel circuit 80 is located in the semiconductor layer 70, the gate of the second transistor T2 in the pixel circuit 80 is located in the first metal layer 71, the first plate of the storage capacitor Cst in the pixel circuit 80 is located in the first metal layer 71, the second plate of the storage capacitor Cst is located in the second metal layer 72, and the source and drain of the second transistor T2 are located in the third metal layer 73. In addition, the display panel includes a gate line, a data line, and a reset signal line. Optionally, the gate line is located in the first metal layer 71, the reset signal line is located in the second metal layer 72, and the data line is located in the third metal layer 73. The materials of the first metal layer 71 and the second metal layer 72 include molybdenum, and the material of the third metal layer 73 includes aluminum and titanium.

[0043] Figure 5 The display panel in the embodiment includes at least three metal layers. In one embodiment, the functional connection line 60 is located in the first metal layer 71, the first functional signal line 41 is located in the second metal layer 72, and the power connection line 20 is located in the third metal layer 73. In another embodiment, the functional connection line 60 is located in the second metal layer 72, the first functional signal line 41 is located in the first metal layer 71, and the power connection line 20 is located in the third metal layer 73. In this embodiment, the gate of the first transistor T1 and the pull wire 53 need to be connected through a via in the insulating layer.

[0044] In another embodiment, in combination with Figure 5 The first metal layer 71 and the second metal layer 72 are separated by a first insulating layer 54, and the second metal layer 72 and the third metal layer 73 are separated by a second insulating layer 55. The first functional signal line 41 is located in the first metal layer 71, and the pull wire 53 in the functional connection line 60 and the first sub-section of the common line 52 in the functional connection line 60 are located in the third metal layer 73, which can reduce the coupling between the first functional signal line 41 and the functional connection line 60.

[0045] In another embodiment, Figure 5 The thickness of the second insulating layer 55 is greater than the thickness of the first insulating layer 54. The first functional signal line 41 is located in the second metal layer 72, and the pull wire 53 in the functional connection line 60 and the first sub-section of the common line 52 in the functional connection line 60 are located in the third metal layer 73, which can also make the spacing distance between the first functional signal line 41 and the functional connection line 60 overlapping with it larger, and can reduce the coupling between them.

[0046] In other implementations, Figure 6 This is a schematic diagram of another display panel film layer structure provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the display panel includes a first semiconductor layer 70-1, a first metal layer 71, a second metal layer 72, a second semiconductor layer 70-2, a fourth metal layer 74, and a third metal layer 73 located on a substrate 00. The pixel circuit 80 includes a second transistor T2 and a third transistor T3. The active layer of the second transistor T2 is located on the first semiconductor layer 70-1, and the active layer of the third transistor T3 is located on the second semiconductor layer 70-2. The first semiconductor layer 70-1 is made of silicon, and the second semiconductor layer 70-2 is made of metal oxide. The gate of the second transistor T2 is located on the first metal layer 71, the first plate of the storage capacitor Cst is located on the first metal layer 71, and the second plate of the storage capacitor Cst is located on the second metal layer 72. The gate of the third transistor T3 is located on the fourth metal layer 74, and the source and drain of the second transistor T2 and the third transistor T3 are both located on the third metal layer 73. The first metal layer 71 and the second metal layer 72 are made of molybdenum, and the third metal layer 73 is made of aluminum and titanium. In this embodiment, the pixel circuit 80 includes two types of transistors.

[0047] Figure 6 In this embodiment, the display panel includes at least four metal layers. The power line 10 is located in the third metal layer 73. Three metal layers are located between the third metal layer 73 and the substrate 00. The functional connection line 60 and the first functional signal line 41 can be located in any two of the three metal layers, or the functional connection line 60 can be at least partially located in the third metal layer 73. For example, in some embodiments, the functional connection line 60 is located in the first metal layer 71, and the first functional signal line 41 is located in the second metal layer 72 or the fourth metal layer 74. In some embodiments, the pull wire 53 in the functional connection line 60 and the first segment of the common wire 52 in the functional connection line 60 are located in the third metal layer 73, and the first functional signal line 41 is located in any one of the first metal layer 71, the second metal layer 72, and the fourth metal layer 74.

[0048] In some implementations... Figure 7 for Figure 2 Another enlarged schematic diagram of the central region, Q1. (See attached image.) Figure 7As shown, the first functional signal line 41 includes a first sub-functional signal line 41a and a second sub-functional signal line 41b located in different film layers; in the second direction y, the first sub-functional signal line 41a and the second sub-functional signal line 41b are arranged alternately. Since the first sub-functional signal line 41a and the second sub-functional signal line 41b are located in different film layers, the spacing between adjacent first sub-functional signal lines 41a and 41b in the second direction y is smaller than the spacing between two adjacent signal lines made in the same film layer. This arrangement reduces the total width occupied by multiple first functional signal lines 41 in the second direction y, which in turn reduces the distance between the first power line 11 and the second unit line 12, thereby facilitating further narrowing of the non-display area NA.

[0049] like Figure 7 As shown, the non-display area NA also includes a functional connection line 60. The functional connection line 60 extends along the second direction y and overlaps with at least a portion of the first functional signal line 41. The functional module 30 and the functional signal line 40 are electrically connected through the functional connection line 60. The functional connection line 60 includes a first functional connection line 61 and a second functional connection line 62. The first functional connection line 61 is electrically connected to the first sub-functional signal line 41a through a via on the insulating layer, and the second functional connection line 62 is electrically connected to the second sub-functional signal line 41b through a via on the insulating layer. The first functional connection line 61 and the second functional connection line 62 are located on the same film layer. With this configuration, the first functional connection line 61 and the second functional connection line 62 can be fabricated in the same process, without the need for differentiated settings for the corresponding functional connection lines of the first sub-functional signal line 41a and the second sub-functional signal line 41b located on different film layers. This simplifies the process and avoids excessive number of vias in the insulating layer in the area between the first power line 11 and the second power line 12 due to frequent layer changes in the functional connection lines. In fact, too many holes in the insulating layer will increase the spacing between the first power line 11 and the second power line 12, which is not conducive to narrowing the non-display area NA.

[0050] In some implementations, such as Figure 7 As shown, both the first functional connection line 61 and the second functional connection line 62 are located on the same layer as the power line 10. Figure 5 Taking a display panel comprising at least three metal layers as an example, the first functional connection line 61, the second functional connection line 62, and the power line 10 are located in the third metal layer 73. The first sub-functional signal line 41a and the second sub-functional signal line 41b are respectively located in one of the first metal layers 71 and the second metal layer 72. This arrangement results in a larger distance between the film layer containing the functional connection line 60 and the film layer containing the functional signal line 41, thereby reducing coupling between them. Figure 6For example, the display panel schematically includes at least four metal layers, the first functional connection line 61 and the second functional connection line 62 and the power line 10 are located in the third metal layer 73, and the first sub-functional signal line 41a and the second sub-functional signal line 41b are respectively located in one of the first metal layer 71, the second metal layer 72 and the fourth metal layer 74. In this way, the distance between the film layer where the functional connection line 60 is located and the film layer where the functional signal line 41 is located is large, and the coupling between the two can be reduced.

[0051] In addition, as shown in Figure 7 the functional connection line 60 also includes the common line 52, the common line 52 includes the first sub-section 52a and the second sub-section 52b, the first sub-section 52a overlaps the first functional signal line 41, and the second sub-section 52b overlaps the second power line 12. The first sub-section 52a and the second sub-section 52b are located in different film layers and are connected through a via on the insulating layer. The first sub-section 52a is arranged in the same film layer as the power line 10, which can reduce the coupling between the first sub-section 52a and the first functional signal line 41 overlapping with the first sub-section 52a. In addition, the second sub-section 52b can be located in the same film layer as one of the first sub-functional signal line 41a and the second sub-functional signal line 41b.

[0052] In some embodiments, Figure 8 For Figure 2 another enlarged schematic view of the region Q1. As shown in Figure 8 the functional signal line 40 includes the second functional signal line 42, the second functional signal line 42 includes the first line section 42a and the second line section 42b connected to each other; wherein the first line section 42a and the power connection line 20 are insulated and crossed, and the second line section 42b is located in a different film layer from the first line section 42a and is connected to the first line section 42a through a via on the insulating layer. In this embodiment, the second functional signal line 42 is arranged in the form of a cross-bridge line, so that the first line section 42a does not occupy the film layer where the power line 10 is located, and the power connection line 20 can be located in the same film layer as the power line 10, thereby reducing the load on the power line 10. This embodiment does not need to change the original design architecture of the power line 10 and the functional module 30.

[0053] In some embodiments, the second line section 42b is located in the third metal layer 73, and the second line section 42b is located in the same film layer as the power line 10, so that the resistance of the second line section 42b is small, which is beneficial to reduce the load on the functional signal line 40.

[0054] As Figure 8As shown, the non-display area NA further includes a functional connection line 60, the functional connection line 60 including the pull line 53 and the common line 52, the functional module 30 and the functional signal line 40 being electrically connected through the pull line 53 in the functional connection line 60, the functional connection line 60 extending along the second direction y, and the functional connection line 60 overlapping at least part of the functional signal line 40. The gate of the first transistor T1 and the functional connection line 60 are located in the same layer. The pull line 53 is connected between the gate of the first transistor T1 and one of the functional signal lines 40. Figure 8 It can be seen that the pull line 53 is connected between the gate of the first transistor T1 and one of the functional signal lines 40, and the gate of the first transistor T1 and the functional connection line 60 are located in the same layer, so that the pull line 53 can be directly connected to the gate of the first transistor T1 without the need to set a via hole in the insulating layer, thereby reducing the number of via holes in the area and avoiding the increase of the distance between the first power line 11 and the second power line 12, and meeting the design requirement of narrow frame.

[0055] In some embodiments, the material of the first line segment 42a is the same as that of the functional connection line 60. In one embodiment, the functional connection line 60, the gate of the first transistor T1, and the first line segment 42a are all located in the first metal layer 71, and the first line segment 42a and the functional connection line 60 are made of the same material in the same layer. In another embodiment, the functional connection line 60 and the gate of the first transistor T1 are located in the first metal layer 71, and the first line segment 42a is located in the second metal layer 72, and the materials of the first metal layer 71 and the second metal layer 72 are the same.

[0056] In some embodiments, Figure 9 Another partial schematic view of a display panel according to an embodiment of the present application is shown in FIG. 6. Figure 9 As shown, the functional module 30 is electrically connected to the functional signal line 40; the functional signal line 40 is located on the side of the functional module 30 away from the first power line 11; and the second power line 12 is insulated from and overlaps at least part of the functional signal line 40. Figure 9 The functional connection line 60 connected to the functional module 30 is also shown in FIG. 6, and the functional connection line 60 overlaps the second power line 12. In this embodiment, the power connection line 20 and the power line 10 are first located in the same film layer, which can reduce the load on the power line 10; further, the functional signal line 40 and the power line 10 are located in different film layers, and the film layer in which the functional connection line 60 is located is designed, so that neither the functional signal line 40 nor the functional connection line 60 occupies the film layer in which the power line 10 is located, and the second power line 12 is used to overlap at least part of the functional signal line 40, which can reduce the total width of the power line 10 in the second direction y, and is conducive to the narrowing of the non-display area NA.

[0057] In some embodiments, the functional signal line 40 is located on the side of the functional module 30 away from the first power line 11. Figure 5According to the embodiment, the function signal line 40 and the function connection line 60 can be configured such that one is located in the first metal layer 71 and the other is located in the second metal layer 72, and neither the function signal line 40 nor the function connection line 60 occupies the third metal layer 73 where the power line 10 is located.

[0058] In some implementations, combined Figure 6 According to the embodiment, the function signal line 40 and the function connection line 60 can be located in any two of the first metal layer 71, the second metal layer 72 and the fourth metal layer 74, respectively, and neither the function signal line 40 nor the function connection line 60 occupies the third metal layer 73 where the power line 10 is located.

[0059] Figure 9 The diagram illustrates multiple functional signal lines 40 within the non-display area NA located on the same film layer. In other embodiments, the above can be combined with... Figure 7 In this embodiment, the functional signal line 40 is designed to include a first sub-functional signal line and a second sub-functional signal line located on different film layers, and the second power line 12 is insulated from and overlaps with at least a portion of the functional signal line 40, which is not illustrated in the accompanying drawings. This arrangement further simplifies the bezel width of the non-display area NA.

[0060] In some implementations... Figure 10 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention, such as... Figure 10 As shown, the display panel also includes a function signal line 40 extending along a first direction x. The function signal line 40 is located in the display area AA. A function connection line 60 extends from the display area AA to the non-display area NA. The function module 30 is electrically connected to the function signal line 40 through the function connection line 60. A lead 54 is also provided in the non-display area NA. The function signal line 40 is electrically connected to the lead 54, and the function signal line 40 is connected to the pads in the bonding area through the lead 54. Figure 10 (Not shown in the image). In this embodiment, the functional signal line 40 is placed in the display area AA, so that the power connection line 20 no longer overlaps with the functional signal line 40. This allows the power connection line 20 to be fabricated in the same film layer as the power line 10, thereby reducing the load on the power line 10. Furthermore, placing the functional signal line 40 in the display area AA also saves space in the non-display area NA, which is beneficial for further narrowing of the non-display area NA.

[0061] In this embodiment of the invention, the number of functional signal lines 40 is not limited. Figure 10 The diagram only uses three functional signal lines 40.

[0062] The functional signal line 40 located within the display area AA can be made of the same layer and material as the existing signal lines extending in the first direction x in the display panel, or an additional conductive layer can be added to the display panel to make the functional signal line 40. The functional signal line 40 and the functional connection line 60 are located in different film layers.

[0063] The functional connection line 60 extending from the display area AA to the non-display area NA can be divided into two segments: a segment located within the display area AA and a segment located within the non-display area NA. The functional connection line 60 can be fabricated entirely using a single metal layer, or the two segments of the functional connection line 60 can be located on two separate metal layers connected by vias in an insulating layer. In some embodiments, at least one additional metal layer is added to the side of the third metal layer 73 away from the substrate 00 to fabricate the functional connection line 60.

[0064] In some implementations... Figure 11 This is a partial schematic diagram of another display panel provided in an embodiment of the present invention, such as... Figure 11 As shown, the non-display area NA includes a first non-display area NA1 and a second non-display area NA2. In the second direction y, the first non-display area NA1 and the second non-display area NA2 are located on opposite sides of the display area. The power line and the functional module 30 are located in the first non-display area NA1. The functional signal line 40 is located in the second non-display area NA2, and the functional module 30 and the functional signal line 40 are electrically connected through a functional connection line 60 that passes through the display area NA. A lead 54 is also provided in the non-display area NA, and the functional signal line 40 is electrically connected to the lead 54. The functional signal line 40 is connected to the pads in the bonding area through the lead 54. A bonding area is also provided in the first non-display area NA1 where the power line 10 is located. The bonding area has multiple pads and is used to bond the driving structure, which can be a driving chip or a flexible circuit board. In the second direction y, the width of the first non-display area NA1 is slightly larger than the width of the second non-display area NA2. In this embodiment, the functional signal line 40 is placed in the second non-display area NA2, so that the power connection line 20 no longer overlaps with the functional signal line 40. This allows the power connection line 20 to be fabricated on the same film layer as the power line 10, thereby reducing the load on the power line 10. Furthermore, it saves space in the first non-display area NA1, facilitating further narrowing of the first non-display area NA1 and reducing the width difference between the first non-display area NA1 and the second non-display area NA2.

[0065] Among them, the part of the functional connection line 60 located in the display area AA can be made using the existing film layer in the display panel, or an additional conductive layer can be added to the display panel to make the functional connection line 60.

[0066] In some implementations, such as Figure 2As shown, in the second direction y, the line width of the first power supply line 11 is D1, and the line width of the second power supply line 12 is D2; wherein 0≤│(D1-D2) / (D1+D2)│<0.25. When D1>D2, D1 / D2<1.5; when D2>D1, D2 / D1<1.5. In the embodiment of the present application, the material of the power supply connecting line 20 is the same as that of the power supply line 10, which can greatly reduce the load on the power supply line 10. Thus, the line width of the first power supply line 11 and / or the second power supply line 12 can be narrowed under the condition of meeting the design requirements, thereby further saving the space of the non-display area NA.

[0067] In the embodiment of the present application, the line width of the first power supply line 11 and the second power supply line 12 can be narrowed compared with the prior art, and optionally, the line width of the first power supply line 11 and the second power supply line 12 is not less than 3μm. In another embodiment, the line width of the first power supply line 11 and the second power supply line 12 is not less than 5.5μm.

[0068] In one embodiment, D1=D2.

[0069] Based on the same inventive concept, the embodiment of the present application also provides a display device, Figure 12 The display device provided by the embodiment of the present application is shown in the schematic diagram as Figure 12 As shown, the display device comprises the display panel 100 provided by any embodiment of the present application. The structure of the display panel 100 has been described in the above embodiments, and will not be repeated here. The display device may, for example, be a mobile phone, a computer, a television, a vehicle-mounted display device, a wearable device, or the like.

[0070] 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 protection scope of the present application.

[0071] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, characterized by, The display panel comprises a display area and a non-display area, the non-display area comprises a power line, a power connection line and a plurality of function modules; The power line comprises a first power line and a second power line extending along a first direction, the first power line is located on a side of the second power line close to the display area; the first power line and the second power line are located on the same side of the display area; In a second direction, the function module is located between the first power line and the second power line; the second direction intersects the first direction; The power connection line extends along the second direction, the first power line and the second power line are electrically connected through the power connection line; in the first direction, the power connection line is located between adjacent function modules; wherein, The material of the power connection line is the same as the material of the power line, and the power connection line and the power line are located in the same film layer.

2. The display panel of claim 1, wherein, The display panel further comprises the function signal line extending along the first direction, the function module is electrically connected with the function signal line; wherein, the function signal line is located between the first power line and the second power line, and the function signal line and the power connection line are insulated and crossed.

3. The display panel of claim 2, wherein, The function signal line comprises a first function signal line, and the first function signal line and the power connection line are located in different film layers.

4. The display panel of claim 3, wherein, The non-display area further comprises a function connection line, an input end of the function module is electrically connected with the function connection line, the function connection line extends along the second direction, and the function connection line overlaps at least part of the first function signal line; wherein, The function module comprises a first transistor, and part of the function connection line and one of the first function signal line are located in the same layer as a gate of the first transistor.

5. The display panel of claim 3, wherein, The first function signal line comprises a first sub-function signal line and a second sub-function signal line located in different film layers; in the second direction, the first sub-function signal line and the second sub-function signal line are alternately arranged.

6. The display panel of claim 5, wherein, The non-display area further comprises a function connection line, the function module and the function signal line are electrically connected through the function connection line, the function connection line extends along the second direction, and the function connection line overlaps at least part of the first function signal line; wherein, The function connection line comprises a first function connection line and a second function connection line, the first function connection line is electrically connected with the first sub-function signal line, and the second function connection line is electrically connected with the second sub-function signal line; The first function connection line and the second function connection line are located in the same film layer.

7. The display panel of claim 6, wherein, The first function connection line and the second function connection line are both located in the same layer as the power line. 8.The display panel of claim 2, wherein the functional signal line comprises a second functional signal line, the second functional signal line comprising a first segment and a second segment connected to each other, wherein the first segment and the power connection line are insulated from each other, and the second segment is located in a different film layer from the first segment. 9.The display panel of claim 8, wherein the second segment is located in the same film layer as the power line. 10.The display panel of claim 8, wherein the non-display area further comprises a functional connection line, the functional module and the functional signal line being electrically connected through the functional connection line, the functional connection line extending along the second direction, and the functional connection line overlapping at least part of the functional signal line, wherein the material of the first segment is the same as that of the functional connection line. The functional module comprises a first transistor, the gate of the first transistor and the functional connection line being located in the same layer. 12.The display panel of claim 1, wherein the display panel further comprises the functional signal line extending along the first direction, the functional module being electrically connected to the functional signal line. The functional signal line is located on the side of the functional module away from the first power line. The second power line overlaps at least part of the functional signal line in an insulated manner.

11. The display panel of claim 10, wherein, 13.The display panel of claim 1, wherein the display panel further comprises the functional signal line extending along the first direction, the functional signal line being located in the display area. The display panel further comprises a functional connection line, the functional connection line extending from the display area to the non-display area, the functional module being electrically connected to the functional signal line through the functional connection line. 14.The display panel of claim 1, wherein the non-display area comprises a first non-display area and a second non-display area, the first non-display area and the second non-display area being located on two sides of the display area in the second direction, respectively, and the power line and the functional module being located in the first non-display area. The display panel further comprises the functional signal line extending along the first direction, the functional signal line being located in the second non-display area, and the functional module being electrically connected to the functional signal line through a functional connection line penetrating the display area. 15.The display panel of claim 1, wherein in the second direction, the line width of the first power line is D1, and the line width of the second power line is D2, wherein 0≤│(D1-D2) / (D1+D2)│<0.

25. The functional module comprises a first transistor, the source and the drain of the first transistor being located in the same film layer as the power line. A display panel according to any one of claims 1 to 16. ​ ​ ​ ​ ​ ​ 16. The display panel of claim 1, wherein, ​ 17. A display device comprising: ​

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