Display panel and display device

Abstract

The invention discloses a display panel and a display device. The invention provides a display panel. The display panel comprises a display area and a non-display area; the non-display area comprises a unit area and a wiring area; the wiring area comprises a plurality of signal lines; the signal lines comprise a first type of signal lines and a second type of signal lines which are arranged at intervals, and the wiring area comprises a first connecting structure and a first conductive structure; the first conductive structure is electrically connected with the first type signal line through the first via hole and is electrically connected with the first connecting structure through the second via hole; the first connecting structure is electrically connected with the gate driving unit; in the thickness direction of the display panel, the second via holes are at least overlapped with the second type of signal lines; and / or, the second via holes are not overlapped with the second-type signal lines, and the second via holes are located between the two adjacent second-type signal lines in the first direction; and the first connecting structure is insulated from the second type of signal lines. By changing the position of the wiring through hole, the corrosion resistance of the wiring is improved, and meanwhile, the wiring space is reduced.

Description

Technical Field

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

[0002] In the prior art, the display panel includes a gate driver, which includes a gate driving unit and multiple signal lines that drive the gate driving unit. During the preparation of the signal lines, a large number of vias are usually used to achieve electrical connection. The provision of a large number of vias will aggravate the corrosion ability and seriously affect the use effect of the display panel. Summary of the invention

[0003] The present invention provides a display panel and a display device, which are used to change the position of wiring via holes, improve the corrosion resistance of wiring, and reduce the wiring space.

[0004] According to one aspect of the present invention, there is provided a display panel, comprising:

[0005] Display area;

[0006] a non-display area, the non-display area at least partially surrounding the display area;

[0007] The non-display area includes a unit area and a wiring area; the wiring area is located on a side of the unit area away from the display area; the unit area includes a plurality of cascaded gate driving units, and the wiring area includes a plurality of signal lines arranged along a first direction and extending along a second direction;

[0008] The signal lines include first-type signal lines and second-type signal lines that are spaced apart from each other, the first-type signal lines being located on a side of the second-type signal lines that is away from the display area;

[0009] The routing area further includes a connection structure and a conductive structure, the connection structure includes a first connection structure, and the conductive structure includes a first conductive structure;

[0010] The first conductive structure is electrically connected to the first type of signal line through at least one first via hole; the first conductive structure is electrically connected to the first connection structure through at least one second via hole; the first connection structure is electrically connected to the gate driving unit; the first connection structure is used to transmit the first type of signal output by the first type of signal line to the gate driving unit;

[0011] Along the thickness direction of the display panel, the second via hole at least overlaps with the second type of signal line; and / or the second via hole does not overlap with the second type of signal line, and along the first direction, the second via hole is located between two adjacent second type of signal lines; and the first connection structure is insulated from the second type of signal line.

[0012] According to another aspect of the present invention, a display device is provided, comprising the display panel according to any one of the above aspects.

[0013] The technical solution of the embodiment of the present invention provides a display panel, comprising: a display area; a non-display area, the non-display area at least partially surrounding the display area; the non-display area comprises a unit area and a wiring area; the wiring area is located on a side of the unit area away from the display area; the unit area comprises a plurality of cascaded gate drive units, the wiring area comprises a plurality of signal lines arranged along a first direction and extending along a second direction; the signal lines comprise a first type of signal lines and a second type of signal lines arranged at intervals, the first type of signal lines are located on a side of the second type of signal lines away from the display area; the wiring area further comprises a connection structure and a conductive structure, the connection structure comprises a first connection structure, the conductive structure The invention comprises a first conductive structure; the first conductive structure is electrically connected to a first type of signal line through at least one first via hole; the first conductive structure is electrically connected to a first connection structure through at least one second via hole; the first connection structure is electrically connected to a gate drive unit; the first connection structure is used to transmit a first type of signal output by the first type of signal line to the gate drive unit; along the thickness direction of the display panel, the second via hole and the second type of signal line at least overlap; and / or, the second via hole and the second type of signal line do not overlap, and along the first direction, the second via hole is located between two adjacent second type of signal lines; and the first connection structure is insulated from the second type of signal line. On the premise that the first type of signal output by the first type of signal line can be transmitted to the gate drive unit through the first connection structure, by adjusting the position of the second via hole, different film layers of different signal lines are merged, thereby saving wiring space and improving the corrosion resistance of the wiring.

[0014] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the structure of a non-display area provided by an embodiment of the present invention;

[0018] Figure 3 for Figure 2A schematic cross-sectional view along section line AA';

[0019] Figure 4 A schematic diagram of the structure of another non-display area provided by an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A schematic cross-sectional view along section line BB';

[0021] Figure 6 A schematic diagram of the structure of another non-display area provided by an embodiment of the present invention;

[0022] Figure 7 for Figure 6 A schematic cross-sectional view along section line CC';

[0023] Figure 8 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0024] Fig. 9 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0025] Fig.10 A schematic diagram of the structure of a wiring area provided by an embodiment of the present invention;

[0026] Fig.11 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0027] Fig.12 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0028] Fig.13 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0029] Fig.14 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0030] Fig.15 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0031] Fig.16 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0032] Fig.17 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0033] Fig.18 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0034] Fig.19A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0035] Fig. 20 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0036] Fig.21 A schematic diagram of the structure of another wiring area provided in an embodiment of the present invention;

[0037] Fig. 22 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0038] Fig.23 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0039] Fig.24 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0040] Fig.25 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0041] Fig.26 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0042] Fig. 27 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention;

[0043] Fig.28 A schematic structural diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present invention, Figure 2 A schematic diagram of a non-display area structure provided by an embodiment of the present invention, Figure 3 for Figure 2 The cross-sectional diagram along the section line AA' is shown in FIG. Figure 4 A schematic diagram of another structure of a non-display area provided by an embodiment of the present invention, Figure 5 for Figure 4 The schematic cross-sectional view along the section line BB' is shown in FIG. Figure 6 A schematic diagram of another structure of a non-display area provided by an embodiment of the present invention, Figure 7 for Figure 6 The cross-sectional diagram along the section line CC' is shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the display panel 100 includes: a display area 101; a non-display area 102, the non-display area 102 at least partially surrounding the display area 101; the non-display area 102 includes a unit area 103 and a wiring area 104; the wiring area 104 is located on the side of the unit area 103 away from the display area 101; the unit area 103 includes a plurality of cascaded gate driving units 105, and the wiring area 104 includes a plurality of signal lines 106 arranged along a first direction X and extending along a second direction Y; the signal lines 106 include first-type signal lines 1061 and second-type signal lines 1062 arranged at intervals, and the first-type signal lines 1061 are located on the side of the second-type signal lines 1062 away from the display area 101; the wiring area 104 also includes a connection structure 107 and a conductive structure 108, the connection structure 107 includes a first connection structure 1071, and the conductive structure 108 includes a second connection structure 1072. A conductive structure 1081; the first conductive structure 1081 is electrically connected to the first type signal line 1061 through at least one first via 109; the first conductive structure 1081 is electrically connected to the first connection structure 1071 through at least one second via 110; the first connection structure 1071 is electrically connected to the gate driving unit 105; the first connection structure 1071 is used to transmit the first type signal output by the first type signal line 1061 to the gate driving unit 105; along the thickness direction Z of the display panel 100, the second via 110 and the second type signal line 1062 at least overlap; and / or, the second via 110 and the second type signal line 1062 do not overlap, and along the first direction X, the second via 110 is located between two adjacent second type signal lines 1062; and the first connection structure 1071 is insulated from the second type signal line 1062.

[0047] The display area 101 is an area corresponding to the pixel array, and the display area 101 includes a pixel circuit for controlling the display of the pixel unit, and the pixel circuit includes a scanning line 21 and a data line 22 arranged crosswise, and also includes a thin film transistor 23 connected between the scanning line 21 and the data line 22. The non-display area 102 is provided with a unit area 103 and a routing area 104, and the unit area 103 is provided with a plurality of cascaded gate driving units 105, and the gate driving unit 105 is connected to the scanning line 21. When the current gate driving unit 105 outputs a signal, in addition to outputting the thin film transistor driving the pixel unit of the current row, it is also output to the previous gate driving unit 105 (if any) as a reset signal of the previous gate driving unit 105; it is also output to the next gate driving unit 105 (if any) as an input signal of the next gate driving unit 105. The routing area 104 is provided with a plurality of signal lines 106 arranged along the first direction X and extending along the second direction Y. The signal lines 106 are used to control the operation of the gate driving unit 105. The signal lines 106 generally include a frame start signal line STV, a clock signal line CK, a high voltage power signal line VGH, a low voltage power signal line VGL, a reset signal line Reset, and a control signal line Goff. The signal line 106 includes a first type of signal line 1061 and a second type of signal line 1062 which are arranged at intervals. The first type of signal line 1061 is located on the side of the second type of signal line 1062 away from the display area 101. The first type of signal line 1061 and the second type of line transmit different types of signals. For the same level of gate driving unit 105, along the first direction X, the length of the first type of signal line 1061 from the display area 101 is greater than the length of the second type of signal line 1062 from the display area 101. Usually, the first type of signal line 1061 can be set to a frame start signal line STV, a clock signal line CK, a high voltage power supply signal line VGH and other more important signal lines 106. The corrosion resistance of the signal line 106 can be improved by increasing the number of punching holes, reducing the overlap of film layers, etc., to ensure the reliability of signal transmission.

[0048] The routing area 104 further includes a connection structure 107 and a conductive structure 108. Both the connection structure 107 and the conductive structure 108 are made of conductive materials. The connection structure 107 includes a first connection structure 1071, and the conductive structure 108 includes a first conductive structure 1081. The first conductive structure 1081 is used as a cross-connection layer, and is electrically connected to the first type of signal line 1061 through at least one first via 109 and is electrically connected to the first connection structure 1071 through at least one second via 110. The first connection structure 1071 is electrically connected to the gate driving unit 105, so that the first type of signal output by the first type of signal line 1061 is transmitted to the gate driving unit 105 through the first connection structure 1071. For example, Figure 2 and Figure 3As shown, along the thickness direction Z of the display panel 100, the second via 110 at least overlaps with the second type signal line 1062, and the second punching between the first connection structure 1071 and the conductive structure 108 overlaps with the second type signal line 1062, so that the punching position falls within the projection range of the second type signal line 1062, effectively avoiding the punching from occupying the lateral space, reducing the spacing between adjacent signal lines 106, and saving routing space.

[0049] like Figure 4 and Figure 5 As shown, the second via 110 and the second type signal line 1062 may not overlap along the thickness direction Z of the display panel 100, and the punching position of the second via 110 may be set between two adjacent second type signal lines 1062 along the first direction X. Since there are multiple second type signal lines 1062, the second via 110 may be set between two adjacent second type signal lines 1062. The number of punchings between the first connection structure 1071 and the first conductive structure 1081 is increased, which improves the transmission reliability of the first type signal. The setting area of ​​the first connection structure 1071 and the first conductive structure 1081 is increased, which is conducive to improving the corrosion resistance of the first type signal line 1061. At the same time, the first connection structure 1071 and the second type signal line 1062 are insulated to avoid short circuits and affect the signal transmission effect on different types of signal lines 106.

[0050] Further, such as Figure 6 and Figure 7 As shown, part of the second via 110 and the second type signal line 1062 may at least overlap along the thickness direction Z of the display panel 100; and part of the second via 110 and the second type signal line 1062 may not overlap, and along the first direction X, the second via 110 is located between two adjacent second type signal lines 1062; and the first connection structure 1071 and the second type signal line 1062 are insulated, which can not only shorten the distance between adjacent signal lines 106, but also increase the number of punchings, thereby ensuring the transmission reliability of the first type signal and increasing the corrosion resistance of the first type signal line 1061.

[0051] In the comparative example, the vias connected to the first conductive structure and the first type of signal lines and the vias connected to the first connection structure overlap with the first type of signal lines, so the area of ​​the first conductive structure is smaller. When corrosion occurs at the frame of the display panel, the area of ​​the first conductive structure is further reduced, and poor contact may occur, thereby reducing product reliability. In the present technical solution, the vias of the first conductive structure 1081 connected to the first connection structure 1071 overlap with the second type of signal lines 1062, or are located between two adjacent second type signal lines 1062, thereby increasing the area of ​​the first conductive structure 1081 and improving corrosion resistance and product reliability.

[0052] In the embodiment of the present invention, the first conductive structure is electrically connected to the first type of signal line through the first via hole and is electrically connected to the first connection structure through the second via hole, so that the first type of signal output by the first type of signal line can be transmitted to the gate driving unit through the first connection structure, and at the same time, the second via hole and the second type of signal line are at least overlapped along the thickness direction Z of the display panel 100; and / or the second via hole and the second type of signal line do not overlap, and along the first direction, the second via hole is located between two adjacent second type of signal lines; and the first connection structure is insulated from the second type of signal line. By adjusting the position of the second via hole, different film layers of different signal lines are merged, which saves wiring space, ensures the reliability of signal transmission, and improves the corrosion resistance of the wiring.

[0053] Optional, continue to refer to Figure 3 , along the thickness direction Z of the display panel 100, the first conductive structure 1081 and the second type signal line 1062 at least partially overlap, and the first conductive structure 1081 and the second type signal line 1062 are insulated. The coverage area of ​​the first conductive structure 1081 is reasonably set so that the first conductive structure 1081 and the second type signal line 1062 also overlap, ensuring effective electrical connection between the first connection structure 1071 and the first conductive structure 1081. At the same time, an insulating layer is provided between the first conductive structure 1081 and the second type signal line 1062 to avoid short circuit between the first conductive structure 1081 and the second type signal line 1062, thereby affecting the signal transmission effect on the different types of signal lines 106.

[0054] Optional, continue to refer to Figure 2 , Figure 4 and Figure 6 , along the first direction X, the second via 110 is not disposed between the first type signal line 1061 and the second type signal line 1062. No second via 110 is disposed between the first type signal line 1061 and the second type signal line 1062. At this time, the distance between the first type signal line 1061 and the second type signal line 1062 is shortened, so that the first type signal line 1061 can be closer to the display area 101, while being away from the edge of the display panel 100, reducing the probability of the first type signal line 1061 being corroded.

[0055] Optional, continue to refer to Figure 3 , Figure 5 and Figure 6The display panel 100 further includes a first metal layer 111, a first insulating layer 112, a second metal layer 113, a second insulating layer 114 and a transparent metal layer 115 which are stacked in sequence; the first type signal line 1061 and the second type signal line 1062 are arranged in the same layer and spaced apart, and are both located in the first metal layer 111. The first connection structure 1071 is located in the second metal layer 113, and the first conductive structure 1081 is located in the transparent metal layer 115, and the transparent metal layer 115 can be prepared from indium tin oxide; the first via hole 109 penetrates the first insulating layer 112 and the second insulating layer 114 to realize the electrical connection between the first type signal line 1061 and the first conductive structure 1081; and the second via hole 110 penetrates the second insulating layer 114 to realize the electrical connection between the first connection structure 1071 and the first conductive structure 1081. A first insulating layer 112 and a second insulating layer 114 are disposed between the first signal line 1061 and the second signal line 1062 and the first conductive structure 1081 to reduce the coupling risk between the first metal layer 111 and the transparent metal layer 115 and ensure signal transmission effects on the first signal line 1061 and the second signal line 1062 .

[0056] Optional, Figure 8 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Fig. 9 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention is shown in FIG. Figure 8 and Fig. 9 As shown, the display panel 100 further includes a pixel electrode 116 and a common electrode 117 , and the transparent metal layer 115 and the pixel electrode 116 are disposed on the same layer, and / or the transparent metal layer 115 and the common electrode 117 are disposed on the same layer.

[0057] In the liquid crystal display panel 100, the pixel electrode 116 and the common electrode 117 can be arranged in the same layer, or in different layers. When the pixel electrode 116 and the common electrode 117 are in different layers, the pixel electrode 116 can be at the bottom and the common electrode 117 can be at the top, or the pixel electrode 116 can be at the top and the common electrode 117 can be at the bottom. Since the pixel electrode 116 and the common electrode 117 are usually made of indium tin oxide, the first conductive structure 1081 can be arranged in the same layer as the pixel electrode 116 and / or the common electrode 117. For example, Figure 8 and Fig. 9 As shown, when the pixel electrode 116 located in the transparent metal layer 115 is electrically connected to the drain of the thin film transistor in the pixel circuit located in the second metal layer 113, a via is usually required to achieve this. At this time, the first via 109 between the first conductive structure 1081 and the first type of signal line 1061 and the second via 110 between the first conductive structure 1081 and the first connection structure 1071 can also be formed in a synchronous process, thereby reducing the process progress and the difficulty of the preparation process.

[0058] Optional, Fig.10 A schematic diagram of the structure of a routing area provided by an embodiment of the present invention, such as Fig.10 As shown, the second type signal line 1062 includes a plurality of first signal lines 11 arranged at intervals, the first connection structure 1071 also includes a first connection structure section 12, the second via 110 includes a first sub-via 1101, the first connection structure section 12 is located between adjacent first signal lines 11, and the first connection structure section 12 is electrically connected to the first conductive structure 1081 through at least one first sub-via 1101. Along the first direction X, first sub-vias 1101 are arranged between adjacent first signal lines 11. Exemplarily, along the second direction Y, three first sub-vias 1101 are arranged at intervals, and the first sub-vias 1101 are electrically connected to the first connection structure section 12 and the first conductive structure 1081, respectively. The coverage area of ​​the first conductive structure 1081 and the first connection structure 1071 is increased, the corrosion resistance of the signal line 106 is improved, and the number of vias of the first type signal line 1061 is increased, so as to ensure the signal transmission reliability of the first type signal line 1061.

[0059] Optional, Fig.11 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig.12 A schematic diagram of the structure of another routing area provided by an embodiment of the present invention, such as Fig.11 and Fig.12 As shown, the first connection structure 1071 also includes a second connection structure section 13 connected to the first connection structure section 12, the second via 110 includes a second sub-via 1102, along the thickness direction Z of the display panel 100, the second connection structure section 13 at least partially overlaps with the first signal line 11, and the second connection structure section 13 is electrically connected to the first conductive structure 1081 through at least one second sub-via 1102; and / or, the second connection structure section 13 is insulated from the first conductive structure 1081.

[0060] Among them, Fig.11 As shown, along the thickness direction Z of the display panel 100, the second connection structure section 13 overlaps with the first signal line 11, and the second sub-via 1102 overlaps with the first signal line 11. The second sub-via 1102 can be electrically connected to the second connection structure section 13 and the first conductive structure 1081, respectively. The position of the second via 110 is adjusted to overlap with the first signal line 11, so that the spacing between adjacent first signal lines 11 can be reduced, saving wiring space; Fig.10As shown, the second sub-via 1102 may not be provided between the second connection structure section 13 and the first conductive structure 1081, and the second insulating layer 114 may be used to separate them, thereby avoiding short circuit between the second connection structure section 13 and the first conductive structure 1081, thereby preventing the signal transmission effect of the first type signal line 1061 from being affected. Fig.12 As shown, part of the second sub-via 1102 may at least partially overlap with the first signal line 11, and the second connection structure section 13 is electrically connected to the first conductive structure 1081 through the second sub-via 1102. Part of the second connection structure section 13 is insulated from the first conductive structure 1081. The setting position and setting number of the second sub-via 1102 are reasonably adjusted to ensure the transmission reliability of the first type of signal.

[0061] Optional, Fig.13 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig.14 A schematic diagram of the structure of another routing area provided by an embodiment of the present invention, such as Fig.13 and Fig.14 As shown, when the second connection structure section 13 is electrically connected to the first conductive structure 1081 through at least one second sub-via 1102, the length L1 of the first connection structure section 12 in the second direction Y is less than or equal to the length L2 of the second connection structure section 13 in the second direction Y; or, when the second connection structure section 13 is insulated from the first conductive structure 1081, the length L1 of the first connection structure section 12 in the second direction Y is greater than or equal to the length L2 of the second connection structure section 13 in the second direction Y.

[0062] When the second connection structure section 13 is electrically connected to the first conductive structure 1081 through at least one second sub-via 1102, and the first connection structure section 12 is insulated from the first conductive structure 1081, Fig.11 As shown, the length L1 of the first connection structure section 12 in the second direction Y can be adjusted to be equal to the length L2 of the second connection structure section 13 in the second direction Y; Fig.13 As shown, since there is no via between the first connection structure section 12 and the first conductive structure 1081, the length L1 of the first connection structure section 12 in the second direction Y can be appropriately reduced, so that the length L1 of the first connection structure section 12 in the second direction Y is less than or equal to the length L2 of the second connection structure section 13 in the second direction Y, and the overlapping area between the first connection structure section 12 and the first conductive structure 1081 can be appropriately reduced. Since the wiring area 104 of the non-display area 102 will be provided with frame glue, the frame glue needs light to be cured, and the area of ​​the light-transmitting area of ​​the non-display area 102 can be increased to achieve a better light-curing effect.

[0063] Or, if Fig.10As shown, when the second connection structure section 13 is insulated from the first conductive structure 1081, the length L1 of the first connection structure section 12 in the second direction Y can be adjusted to be equal to the length L2 of the second connection structure section 13 in the second direction Y; Fig.14 As shown, since there is no via between the second connection structure section 13 and the first conductive structure 1081, the length L2 of the second connection structure section 13 in the second direction Y can be appropriately reduced, so that the length L1 of the first connection structure section 12 in the second direction Y is greater than the length L2 of the second connection structure section 13 in the second direction Y, and the overlapping area between the second connection structure section 13 and the first conductive structure 1081 is appropriately reduced, and the area of ​​the light-transmitting area of ​​the non-display area 102 is increased, thereby ensuring the photocuring effect of the frame glue in the non-display area 102.

[0064] Optional, continue to refer to Fig.14 , along the first direction X, the width between adjacent first signal lines 11 is W1, the width of the first sub-via 1101 is W2, and the width of the first connection structure section 12 is W3, wherein W2<W3≤W1.

[0065] Among them, when the first sub-via 1101 is arranged between adjacent first signal lines 11 along the first direction X, in order to ensure that the width between adjacent first signal lines 11 meets the punching requirements, it is necessary to ensure that the width W1 between adjacent first signal lines 11 is greater than the width W2 of the first sub-via 1101 to avoid drilling climbing, and the width W1 between adjacent first signal lines 11 is greater than or equal to the width W3 of the first connection structure division 12 to ensure that the first connection structure division 12 is accommodated between adjacent first signal lines 11 along the first direction X. Since the first sub-via 1101 is electrically connected to the first connection structure division 12, it is also necessary to ensure that the first sub-via 1101 falls within the range of the first connection structure division 12, and it is necessary to ensure that the width W3 of the first connection structure division 12 is greater than the width W2 of the first sub-via 1101 to ensure the reliability of punching.

[0066] Optional, continue to refer to Fig.13 , along the first direction X, the width of the second sub-via 1102 is W4, the width of the second connection structure portion 13 is W5, and the width of the first signal line 11 is W6, wherein W4<W6≤W5.

[0067] Among them, along the thickness direction Z of the display panel 100, the second sub-via 1102 at least partially overlaps with the first signal line 11. To ensure that the width of the second connection structure section 13 can meet the punching requirements, it is necessary to meet the width W5 of the second connection structure section 13 is greater than the width W4 of the second sub-via 1102. At the same time, the width W5 of the second connection structure section 13 can be adjusted to be greater than or equal to the width W6 of the first signal line 11. The width W5 of the second connection structure section 13 is appropriately adjusted to ensure that the width of the second connection structure 1072 distribution is sufficient for punching, thereby ensuring the reliability of punching.

[0068] Optional, Fig.15 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig.16 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig.17 A schematic diagram of the structure of another routing area provided by an embodiment of the present invention, such as Fig.15 , Fig.16 and Fig.17 As shown, the display panel 100 further includes a first wiring section 118 , which is connected to the first type of signal line 1061 ; the first wiring section 118 is electrically connected to the first conductive structure 1081 via at least one third via 119 .

[0069] The first type signal line 1061 may also be connected to the first routing section 118 along the first direction X. Fig.15 As shown, the first routing section 118 may be located between the first type signal line 1061 and the second type signal line 1062; Fig.16 As shown, along the first direction X, the first routing section 118 is located on the side of the first type signal line 1061 away from the second type signal line 1062, or, as shown in FIG. Fig.17 As shown, the first routing section 118 is located between the first type signal line 1061 and the second type signal line 1062, and the first routing section 118 is located on the side of the first type signal line 1061 away from the second type signal line 1062. A third via 119 can be set between the first routing section 118 and the first conductive structure 1081 to increase the number of holes and ensure the signal transmission reliability of the first type signal line 1061.

[0070] Optional, continue to refer to Fig.15 , Fig.16 and Fig.17 , along the thickness direction Z of the display panel 100, the third via hole 119 and the first wiring section 118 at least partially overlap. The third via hole 119 is arranged within the arrangement range of the first wiring section 118 to ensure the electrical connection effect between the first wiring section 118 and the third via hole 119, thereby improving the signal transmission reliability of the first type of signal.

[0071] Optional, Fig.18 A schematic diagram of the structure of another routing area provided by an embodiment of the present invention, such as Fig.18 As shown, the first type of signal line 1061 includes a second signal line 14, and the first conductive structure 1081 also includes a first conductive structure division 15. Along the thickness direction Z of the display panel 100, the first conductive structure division 15 at least partially overlaps with the second signal line 14; the first conductive structure division 15 is electrically connected to the second signal line 14 through at least one first via 109.

[0072] Among them, the first conductive structure division 15 is extended along the second direction Y, and multiple first vias 109 are set at the same time, so that the first conductive structure division 15 is electrically connected to the second signal line 14 through the multiple first vias 109. The first vias 109 can be evenly arranged along the second direction Y, and the second vias 110 overlap with the projection of the second signal line 14 to avoid a large number of first vias 109 occupying the horizontal space. At the same time, by increasing the number of punching holes, the signal transmission reliability of the first type signal line 1061 is guaranteed.

[0073] Optional, Fig.19 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig. 20 A schematic diagram of the structure of another routing area provided in an embodiment of the present invention, Fig.21 A schematic diagram of the structure of another routing area provided by an embodiment of the present invention, such as Fig.19 , Fig. 20 and Fig.21 As shown, the first conductive structure 1081 includes at least one first hollow structure 201 , and along the thickness direction Z of the display panel 100 , the first hollow structure 201 does not overlap with the first via hole 109 ; and / or the first hollow structure 201 does not overlap with the second via hole 110 .

[0074] Wherein, a first hollow structure 201 is provided on the first conductive structure 1081, such as Fig.19 As shown, the first hollow structure 201 needs to be arranged at a position away from the first via hole 109. Along the first direction X, the first hollow structure 201 can be arranged between the first type signal line 1061 and the second type signal line 1062, and between adjacent first via holes 109, so that along the thickness direction Z of the display panel 100, the first hollow structure 201 and the first via hole 109 do not overlap, ensuring that the first conductive structure 1081 and the first type signal line 1061 are electrically connected through the first via hole 109, thereby ensuring the signal transmission effect of the first type signal line 1061. Fig. 20As shown, the first hollow structure 201 needs to be arranged away from the second via hole 110. Along the first direction X, the first hollow structure 201 can be arranged between adjacent second-type signal lines 1062, and along the thickness direction Z of the display panel 100, the first hollow structure 201 overlaps with the second-type signal line 1062, so that along the thickness direction Z of the display panel 100, the first hollow structure 201 does not overlap with the second via hole 110, ensuring that the first conductive structure 1081 and the first connection structure 1071 are electrically connected through the first via hole 109. Fig.21 As shown, the first hollow structure 201 and the first via 109 do not overlap, the first hollow structure 201 and the second via 110 do not overlap, and the first hollow structure 201 and the second type signal line 1062 overlap, ensuring the setting area of ​​the first hollow structure 201, so that the overlapping area of ​​the first conductive structure 1081 and the first type signal line 1061 and the second type signal line 1062 is small, reducing the coupling risk between the first metal layer 111 and the third metal layer, and ensuring the transmission effect of the signal. The shape of the first hollow structure 201 can be selected according to actual design requirements, and the embodiment of the present invention does not make a specific limitation.

[0075] Optional, Fig. 22 A schematic structural diagram of another display panel provided by an embodiment of the present invention, the first connection structure 1071 includes at least one second hollow structure 202 , and along the thickness direction Z of the display panel 100 , the second hollow structure 202 does not overlap with the second via hole 110 .

[0076] Among them, the second hollow structure 202 can also be set on the first connection structure 1071. In order to ensure that the first connection structure 1071 and the first conductive structure 1081 are electrically connected through the second via 110, the second hollow structure 202 needs to avoid the second via 110. At the same time, the second hollow structure 202 can reduce the spacing between the first metal layer 111 and the second metal layer 113, thereby reducing the overlapping area between the first connection structure 1071 and the second type of signal line 1062. In addition, since the first connection structure 1071 is made of opaque metal, the second hollow structure is set on the first connection structure 1071, which can increase the area of ​​the light-transmitting area in the non-display area 102 and improve the light curing effect of the sealant.

[0077] Optional, Fig.23 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention is shown in FIG. Fig.23 As shown, the first type signal line 1061 includes at least one third hollow structure 203 , and along the thickness direction Z of the display panel 100 , the third hollow structure 203 does not overlap with the first via hole 109 .

[0078] Among them, the first type signal line 1061 may also be provided with a third hollow structure 203, and multiple third hollow structures 203 are arranged at intervals, and the third hollow structure 203 needs to avoid the setting of the first via 109. Similarly, the second type signal line 1062 may also be provided with a fourth hollow structure 204, and multiple fourth hollow structures 204 are arranged at intervals. When the second type signal line 1062 is electrically connected to the second conductive structure 1082 through the fourth via 120, the third hollow structure 203 needs to avoid the setting of the fourth via 120. Since the setting area of ​​the first type signal line 1061 and the second type signal line 1062 is relatively large, with the help of the third hollow structure 203 and / or the fourth hollow structure 204, the light-transmitting area of ​​the non-display area 102 can be increased to a large extent, ensuring the light curing effect of the frame glue.

[0079] Optional, Fig.24 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention is shown in FIG. Fig.24 As shown, the connection structure 107 includes a via area 1073 and a non-via area 1074, and the via area 1073 is connected to the non-via area 1074; along the second direction Y, the width of the via area 1073 is w1, and the width of the non-via area 1074 is w2; along the first direction X, the width of the signal line 106 is w3; wherein, w1>w2>w3.

[0080] Wherein, the connection structure 107 includes a via area 1073 and a non-via area 1074, and the non-via area 1074 is connected to the adjacent via area 1073, or is respectively connected to the via area 1073 and the gate driving unit 105. Since the second via 110 is formed in the via area 1073, the width w1 of the via area 1073 is usually greater than the width w2 of the non-via area 1074 in the second direction Y, so as to ensure the reliability of the punching. At the same time, along the first direction X, the width w3 of the signal line 106 is usually greater than the width w2 of the non-via area 1074 along the second direction Y. The width w3 of the signal line 106 is set wider, and the width w2 of the non-via area 1074 is set narrower, so as to reduce the overlapping area between the first connection structure 1071 and the signal line 106, reduce the coupling risk between the metal layers, and ensure the transmission effect of the signal.

[0081] Optional, Fig.25 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Fig.26 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention, Fig. 27 A schematic diagram of the structure of another display panel provided by an embodiment of the present invention is shown in FIG. Fig.25 , Fig.26 and Fig. 27As shown, the display panel 100 also includes a third-type signal line 1063, and the third-type signal line 1063 is located on the side of the second-type signal line 1062 close to the display area 101; the conductive structure 108 also includes a second conductive structure 1082, and the connection structure 107 also includes a second connection structure 1072, and the second conductive structure 1082 is electrically connected to the second-type signal line 1062 through at least one fourth via 120; the second conductive structure 1082 is electrically connected to the second connection structure 1072 through at least one fifth via 121; the second connection structure 1072 is electrically connected to the gate driving unit 105; the second connection structure 1072 is used to transmit the second-type signal output by the second-type signal line 1062 to the gate driving unit 105; along the thickness direction Z of the display panel 100, the fifth via 121 at least overlaps with the third-type signal line 1063; and / or, the fifth via 121 does not overlap with the third-type signal line 1063; and the second connection structure 1072 is insulated from the third-type signal line 1063.

[0082] Among them, along the first direction X and from the non-display area 102 to the non-display area 102 direction, the first type signal line 1061, the second type signal line 1062 and the third type signal line 1063 are arranged at intervals, the second type signal line 1062 is electrically connected to the second conductive structure 1082 through the fourth via 120, the second conductive structure 1082 is electrically connected to the second connection structure 1072 through the fifth via 121, and the second connection structure 1072 is electrically connected to the gate driving unit 105, so that the second type signal output through the second type signal line 1062 is transmitted to the gate driving unit 105 through the second conductive structure 1082 and the second connection structure 1072, as shown in FIG. Fig.25 As shown, along the thickness direction Z of the display panel 100, the fifth via 121 at least overlaps with the third type signal line 1063, and the fifth perforation between the second connection structure 1072 and the conductive structure 108 overlaps with the second type signal line 1062, so that the perforation position falls within the projection range of the third type signal line 1063, effectively avoiding the perforation from occupying the horizontal space, reducing the spacing between adjacent signal lines 106, and saving wiring space. Fig.26As shown, the fifth via 121 and the third type signal line 1063 may not overlap along the thickness direction Z of the display panel 100, and the punching position of the fifth via 121 may be set between two adjacent third type signal lines 1063 along the first direction X. Since there are multiple third type signal lines 1063, the fifth via 121 may be set between two adjacent third type signal lines 1063. The number of punchings between the second connection structure 1072 and the second conductive structure 1082 is increased, which improves the transmission reliability of the second type signal. The setting area of ​​the second connection structure 1072 and the second conductive structure 1082 is increased, which is beneficial to improve the corrosion resistance of the third type signal line 1063. At the same time, the second connection structure 1072 and the third type signal line 1063 are insulated to avoid short circuits that affect the signal transmission effects on different types of signal lines 106. Further, as Fig. 27 As shown, part of the fifth via 121 may at least overlap with the third type signal line 1063 along the thickness direction Z of the display panel 100; and part of the fifth via 121 may not overlap with the third type signal line 1063, and along the first direction X, the fifth via 121 may be located between two adjacent third type signal lines 1063; and the second connection structure 1072 may be insulated from the third type signal line 1063, which can not only shorten the distance between adjacent signal lines 106, but also increase the number of punching holes, thereby ensuring the transmission reliability of the second type signal and increasing the corrosion resistance of the third type signal line 1063.

[0083] Optional, continue to refer to Fig.25 , Fig.26 and Fig. 27 , the sum of the numbers of the first via holes 109 and the second via holes 110 is greater than the sum of the numbers of the fourth via holes 120 and the fifth via holes 121 .

[0084] In the first direction X, the first type signal line 1061 is located at the side of the second type signal line 1062 away from the display area 101, and along the first direction X, the extension length of the first connection structure 1071 is greater than the extension length of the second connection structure 1072. For the first type signal line 1061, which is a relatively important signal line 106 such as the frame start signal line STV, the clock signal line CK, and the high voltage power supply signal line VGH, along the thickness direction Z of the display panel 100, the second via hole 110 can be connected to the second type signal line 1062, the third type signal line 1062, and the second type signal line 1063. The spacing between the first signal line 1063, the second signal line 1062, the spacing between the third signal lines 1063, and the spacing between the second signal line 1062 and the third signal line 1063 overlap, so that the sum of the number of vias of the first via 109 and the second via 110 is greater than the sum of the number of vias of the fourth via 120 and the fifth via 121, and the number of punched holes corresponding to the first signal line 1061 is greater than the number of punched holes corresponding to the second signal line 1062, thereby improving the corrosion resistance of the first signal line 1061 and ensuring the reliability of signal transmission.

[0085] Optional, continue to refer to Fig.25 , Fig.26 and Fig. 27 , along the thickness direction Z of the display panel 100, the area of ​​the first conductive structure 1081 is larger than the area of ​​the second conductive structure 1082. The first conductive structure 1081 can be electrically connected to more first vias 109 and second vias 110, ensuring the number of holes and the signal transmission effect of the first type signal line 1061. At the same time, the first conductive structure 1081 has a larger area, which can improve the corrosion resistance of the first type signal line 1061.

[0086] Optional, continue to refer to Fig.25 , Fig.26 and Fig. 27 , along the thickness direction Z of the display panel 100, the area of ​​the first connection structure 1071 is greater than the area of ​​the second connection structure 1072. By increasing the area of ​​the first connection structure 1071, the first connection structure 1071 can be electrically connected to more second vias 110, thereby ensuring the signal transmission effect of the first type signal line 1061. Meanwhile, the first connection structure 1071 has a larger area, which can improve the corrosion resistance of the first type signal line 1061.

[0087] Fig.28 A schematic diagram of a display device according to an embodiment of the present invention is shown in FIG. Fig.28 As shown, the display device 200 includes the display panel 100 described in the above embodiment.

[0088] It should be noted that since the display device provided in this embodiment has the same or corresponding beneficial effects as the display panel 100 in the above embodiment, no further description is given here. The display device 200 provided in the embodiment of the present invention can be Fig.28 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, medical equipment, industrial control equipment, touch interactive terminals, etc. The embodiments of the present invention do not specifically limit this.

[0089] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display panel, characterized in that: include: Display area; a non-display area, the non-display area at least partially surrounding the display area; The non-display area includes a unit area and a wiring area; the wiring area is located on a side of the unit area away from the display area; the unit area includes a plurality of cascaded gate driving units, and the wiring area includes a plurality of signal lines arranged along a first direction and extending along a second direction; The signal lines include first-type signal lines and second-type signal lines that are spaced apart from each other, the first-type signal lines being located on a side of the second-type signal lines that is away from the display area; The routing area further includes a connection structure and a conductive structure, the connection structure includes a first connection structure, and the conductive structure includes a first conductive structure; The first conductive structure is electrically connected to the first type of signal line through at least one first via hole; the first conductive structure is electrically connected to the first connection structure through at least one second via hole; The first connection structure is electrically connected to the gate driving unit; The first connection structure is used to transmit the first type of signal output by the first type of signal line to the gate driving unit; Along the thickness direction of the display panel, the second via hole at least overlaps with the second type of signal line; and / or the second via hole does not overlap with the second type of signal line, and along the first direction, the second via hole is located between two adjacent second type of signal lines; and the first connection structure is insulated from the second type of signal line.

2. The display panel according to claim 1, characterized in that: Along the thickness direction of the display panel, the first conductive structure and the second-type signal line at least partially overlap, and the first conductive structure and the second-type signal line are insulated from each other.

3. The display panel according to claim 1, characterized in that: Along the first direction, the second via hole is not disposed between the first-type signal line and the second-type signal line.

4. The display panel according to claim 1, characterized in that: The display panel further comprises a first metal layer, a first insulating layer, a second metal layer, a second insulating layer and a transparent metal layer which are stacked in sequence; The first type of signal lines and the second type of signal lines are located in the first metal layer, the first connection structure is located in the second metal layer, and the first conductive structure is located in the transparent metal layer; The first via hole penetrates the first insulating layer and the second insulating layer; The second via hole penetrates the second insulating layer.

5. The display panel according to claim 4, characterized in that: The display panel further includes a pixel electrode and a common electrode. The transparent metal layer is disposed in the same layer as the pixel electrode, and / or the transparent metal layer is disposed in the same layer as the common electrode.

6. The display panel according to claim 1, characterized in that: The second type of signal line includes a plurality of first signal lines spaced apart from each other, the first connection structure also includes a first connection structure section, the second via includes a first sub-via, the first connection structure section is located between adjacent first signal lines, and the first connection structure section is electrically connected to the first conductive structure through at least one of the first sub-vias.

7. The display panel according to claim 6, characterized in that: The first connection structure also includes a second connection structure section connected to the first connection structure section, the second via includes a second sub-via, along the thickness direction of the display panel, the second connection structure section at least partially overlaps with the first signal line, and the second connection structure section is electrically connected to the first conductive structure through at least one of the second sub-vias; and / or the second connection structure section is insulated from the first conductive structure.

8. The display panel according to claim 7, characterized in that: When the second connection structure sub-portion is electrically connected to the first conductive structure through at least one of the second sub-vias, the length of the first connection structure sub-portion in the second direction is less than or equal to the length of the second connection structure sub-portion in the second direction; Alternatively, when the second connection structure section is insulated from the first conductive structure, the length of the first connection structure section in the second direction is greater than or equal to the length of the second connection structure section in the second direction.

9. The display panel according to claim 6, characterized in that: Along the first direction, the width between adjacent first signal lines is W1, the width of the first sub-via is W2, and the width of the first connection structure portion is W3, wherein W2<W3≤W1.

10. The display panel according to claim 7, characterized in that: Along the first direction, the width of the second sub-via is W4, the width of the second connection structure portion is W5, and the width of the first signal line is W6, wherein W4<W6≤W5.

11. The display panel according to claim 1, characterized in that: The display panel further includes a first wiring division, wherein the first wiring division is connected to the first type of signal line; The first wiring section is electrically connected to the first conductive structure through at least one third via.

12. The display panel according to claim 11, characterized in that: Along the thickness direction of the display panel, the third via hole and the first wiring section at least partially overlap.

13. The display panel according to claim 1, characterized in that: The first type of signal line includes a second signal line, and the first conductive structure also includes a first conductive structure division, and along the thickness direction of the display panel, the first conductive structure division at least partially overlaps with the second signal line; the first conductive structure division is electrically connected to the second signal line through at least one of the first vias.

14. The display panel according to claim 1, characterized in that: The first conductive structure includes at least one first hollow structure, and along the thickness direction of the display panel, the first hollow structure does not overlap with the first via hole; and / or the first hollow structure does not overlap with the second via hole.

15. The display panel according to claim 1, characterized in that: The first connection structure includes at least one second hollow structure, and along the thickness direction of the display panel, the second hollow structure does not overlap with the second via hole.

16. The display panel according to claim 1, characterized in that: The first type of signal line includes at least one third hollow structure, and along the thickness direction of the display panel, the third hollow structure does not overlap with the first via hole.

17. The display panel according to claim 1, characterized in that: The connection structure includes a via area and a non-via area, and the via area is connected to the non-via area; Along the second direction, the width of the via area is w1, and the width of the non-via area is w2; along the first direction, the width of the signal line is w3; Among them, w1>w2>w3.

18. The display panel according to claim 1, characterized in that: The display panel further includes a third type of signal line, and the third type of signal line is located on a side of the second type of signal line close to the display area; The conductive structure further includes a second conductive structure, and the connecting structure further includes a second connecting structure, wherein the second conductive structure is electrically connected to the second type signal line via at least one fourth via hole; and the second conductive structure is electrically connected to the second connecting structure via at least one fifth via hole; The second connection structure is electrically connected to the gate driving unit; The second connection structure is used to transmit the second type of signal output by the second type of signal line to the gate driving unit; Along the thickness direction of the display panel, the fifth via hole at least overlaps with the third type signal line; and / or the fifth via hole does not overlap with the third type signal line; and the second connection structure is insulated from the third type signal line.

19. The display panel according to claim 18, characterized in that: The sum of the numbers of the first via holes and the second via holes is greater than the sum of the numbers of the fourth via holes and the fifth via holes.

20. The display panel according to claim 18, characterized in that: Along the thickness direction of the display panel, an area of ​​the first conductive structure is greater than an area of ​​the second conductive structure.

21. The display panel according to claim 18, characterized in that: Along a thickness direction of the display panel, an area of ​​the first connection structure is greater than an area of ​​the second connection structure.

22. A display device, characterized in that: A display panel comprising any one of claims 1-21.

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