DISPLAY PANEL AND DISPLAY DEVICE

Abstract

The application provides a display panel and a display device and relates to the field of display technology. The display panel comprises a display area, a fan-out area, and a binding area located on the edge of the fan-out area facing away from the display area. A driver chip is provided in the binding area, the driver chip comprising a first edge adjacent to the fan-out area, a second edge opposite the first edge, and two third edges connecting the first and second edges. The driver chip also comprises several output terminals located near the first edge. The display panel comprises several fan-out traces located in the fan-out area and several airfoil traces located in the binding area.wherein a portion of the fanout traces extends from the fanout area to an area containing the first edge and is electrically connected to the output terminals; wherein another portion of the fanout traces is electrically connected to the output terminals via the airfoil traces, and the airfoil traces pass through an area containing at least one of the first edge, two third edges, and a second edge. The display panel offers great design freedom and low power consumption.

Description

Display panel and display device Technical Field

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

[0002] With the rapid development of display technology, people have higher and higher requirements for the performance of display products. However, due to the limited design space of the fan-out area of ​​current display products, the fan-out lines in the fan-out area are arranged very densely, and the line width of the fan-out lines is relatively narrow, which makes the resistance of the fan-out lines large, making it difficult to achieve high-frequency charging of display products.

[0003] Currently, a new display panel is urgently needed to solve the above problems.

[0004] Summary of the Invention

[0005] The embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a display panel, comprising:

[0007] Display area;

[0008] a fan-out area located on one side of the display area;

[0009] a binding area located on a side of the fan-out area away from the display area; a driver chip is disposed in the binding area, the driver chip including a first side adjacent to the fan-out area, a second side opposite to the first side, and two third sides connecting the first side and the second side; the driver chip further includes a plurality of output terminals, the output terminals being disposed proximate to the first side;

[0010] The display panel includes:

[0011] a plurality of fan-out traces located in the fan-out region;

[0012] a plurality of airfoil traces located at least in the binding area;

[0013] Part of the fan-out routing extends from the fan-out area to the area where the first side is located and is electrically connected to the output terminal; another part of the fan-out routing is electrically connected to the output terminal through the wing routing, and the wing routing passes through the area where the first side, the two third sides and at least one of the second sides are located.

[0014] In some embodiments of the present application, the airfoil trace passes through the area where the first side is located.

[0015] In some embodiments of the present application, the airfoil line passes through the area where the second side is located.

[0016] In some embodiments of the present application, part of the airfoil profile line passes through the area where the second side is located, and another part of the airfoil profile line passes through the area where at least one of the two third side edges is located.

[0017] In some embodiments of the present application, part of the airfoil routing passes through the area where the first side is located, and another part of the airfoil routing passes through the area where at least one of the two third side edges is located.

[0018] In some embodiments of the present application, the display panel further includes a plurality of receiving terminals, the receiving terminals being configured to be bound to the output terminals of the driver chip; the orthographic projections of the receiving terminals on the substrate of the display panel overlap with the orthographic projections of the output terminals on the substrate; some of the receiving terminals are electrically connected to the fan-out traces passing through the area where the first side is located, and another portion of the receiving terminals are electrically connected to the wing traces;

[0019] For the receiving terminals electrically connected to the wing-shaped traces, an orthographic projection of the wing-shaped traces on the substrate overlaps with an orthographic projection of at least one of the receiving terminals on the substrate.

[0020] In some embodiments of the present application, the receiving terminals electrically connected to the wing-shaped traces are divided into a first group arranged along the first side and a second group arranged along the second side; the wing-shaped traces electrically connected to the receiving terminals in the first group are arranged on the same layer, and the wing-shaped traces electrically connected to the receiving terminals in the second group include a first wing-shaped trace and a second wing-shaped trace, and the first wing-shaped trace and the second wing-shaped trace are located on different layers;

[0021] The wing-shaped traces electrically connected to the first group of receiving terminals and the second wing-shaped traces in the second group of receiving terminals electrically connected to the first group of receiving terminals are arranged on the same layer.

[0022] In some embodiments of the present application, the receiving terminal electrically connected to the wing-shaped trace includes:

[0023] A gate layer located on the substrate includes two conductive pads that are independent of each other and arranged opposite to each other;

[0024] a dielectric layer, covering the gate layer and exposing a portion of the conductive pads;

[0025] a source / drain metal layer, covering the dielectric layer and directly contacting a portion of the area exposed by the conductive pad;

[0026] The electrode layer covers the source-drain metal layer and is configured to directly contact the output terminal of the driver chip.

[0027] In some embodiments of the present application, the wing-shaped traces electrically connected to the first group of receiving terminals and each of the second wing-shaped traces electrically connected to the second group of receiving terminals are both located in the gate layer and pass through the area between the two conductive pads of the receiving terminals.

[0028] In some embodiments of the present application, for one of the receiving terminals in the first group of receiving terminals, one of the wing-shaped traces is electrically connected to its conductive pad, and the orthographic projections of the other wing-shaped traces electrically connected to the first group of receiving terminals on the substrate and the orthographic projections of the conductive pad on the substrate do not overlap with each other;

[0029] For one of the receiving terminals in the second group of receiving terminals, one of the second wing-shaped traces is electrically connected to its conductive pad, and the orthographic projections of other second wing-shaped traces electrically connected to the second group of receiving terminals on the substrate do not overlap with the orthographic projections of their conductive pads on the substrate.

[0030] In some embodiments of the present application, the display panel further includes a plurality of spare receiving terminals, and the spare receiving terminals have the same structure as the receiving terminals;

[0031] The spare receiving terminals arranged in the same row as the first group of receiving terminals are first spare receiving terminals, and the spare receiving terminals arranged in the same row as the second group of receiving terminals are second spare receiving terminals;

[0032] Among them, at least part of the wing-shaped traces electrically connected to the first group of receiving terminals passes through the area between the two conductive pads in the first spare terminal, and at least part of the wing-shaped traces electrically connected to the second group of receiving terminals passes through the area between the two conductive pads in the second spare terminal.

[0033] In some embodiments of the present application, the fan-out routing includes a display fan-out routing and a touch fan-out routing;

[0034] Each of the touch fan-out lines extends from the fan-out area to the area where the first side is located, and is electrically connected to the output terminal; some of the display fan-out lines are electrically connected to the output terminal through the wing-shaped lines.

[0035] In some embodiments of the present application, the wing-shaped routing includes a display wing-shaped routing and a touch wing-shaped routing; the fan-out routing includes a display fan-out routing and a touch fan-out routing;

[0036] Part of the display fan-out wiring is electrically connected to the output terminal through the display wing-shaped wiring, and part of the touch fan-out wiring is electrically connected to the output terminal through the touch wing-shaped wiring.

[0037] In some embodiments of the present application, the airfoil wirings are arranged on the same layer.

[0038] In some embodiments of the present application, some of the airfoil traces are arranged on the same layer, and another part of the airfoil traces includes a first airfoil trace and a second airfoil trace, and the first airfoil trace and the second airfoil trace are located in different layers;

[0039] In which, each of the wing-shaped routing lines arranged on the same layer extends from the binding area to the fan-out area, and includes a first line segment, a second line segment, a third line segment, a fourth line segment and a fifth line segment connected in sequence, wherein the first line segment and the second line segment are located in the binding area, the third line segment extends from the binding area to the fan-out area, and the fourth line segment and the fifth line segment are located in the fan-out area; the first line segment is electrically connected to the fan-out routing line, and the fifth line segment is electrically connected to the output terminal.

[0040] In some embodiments of the present application, the airfoil trace includes a first airfoil trace and a second airfoil trace, and the first airfoil trace and the second airfoil trace are located in different layers;

[0041] The first wing-shaped trace extends along a first direction, and the second wing-shaped trace includes a first line segment extending along a second direction; the first wing-shaped trace is electrically connected to the fan-out trace and the first line segment, respectively; the first direction is a direction from the display area to the binding area, and the second direction is parallel to the first direction;

[0042] The orthographic projection of the first line segment on the substrate of the display panel overlaps with the orthographic projection of the first wing-shaped trace electrically connected thereto on the substrate.

[0043] In some embodiments of the present application, the second airfoil trace further includes a second line segment and a third line segment, the second line segment extends along a third direction, the first line segment, the second line segment, and the third line segment are sequentially connected, and the third line segment is electrically connected to the output terminal; the third direction intersects the first direction;

[0044] Wherein, in the third direction, the arrangement order of the first airfoil alignments, the first line segments and the third line segments is the same.

[0045] In some embodiments of the present application, the angle between the extended line of the first line segment and the extended line of the second line segment is a right angle, and the angle between the extended line of the second line segment and the extended line of the third line segment is a right angle;

[0046] Alternatively, the angle between the extended line of the first line segment and the extended line of the second line segment is an obtuse angle, the angle between the extended line of the second line segment and the extended line of the third line segment is an obtuse angle, and the two obtuse angles are the same;

[0047] Alternatively, one of the angle between the extended line of the first line segment and the extended line of the second line segment and the angle between the extended line of the second line segment and the extended line of the third line segment is a right angle, and the other is an obtuse angle.

[0048] In some embodiments of the present application, a first corner is provided between the first line segment and the second line segment, and a second corner is provided between the second line segment and the third line segment;

[0049] At least a portion of each corner is rounded.

[0050] In some embodiments of the present application, at least one island-shaped figure is provided between two adjacent first corners, and the island-shaped figures between two adjacent first corners are not connected to each other;

[0051] And / or, at least one island-shaped figure is provided between two adjacent second corners, and the island-shaped figures between two adjacent second corners are not connected to each other.

[0052] In some embodiments of the present application, part of the second airfoil profile routing is located on the same layer, another part of the second airfoil profile routing is located on the same layer, and the two parts of the second airfoil profile routing are located on different layers;

[0053] In the third direction, every two first line segments are divided into a group, and each first line segment routing group includes an outer first line segment and an inner first line segment arranged along the third direction;

[0054] For each group of the first line segment routing groups, the orthographic projection of the second line segment electrically connected to the outer first line segment on the substrate overlaps with the orthographic projection of the second line segment electrically connected to the inner first line segment on the substrate.

[0055] In some embodiments of the present application, a test unit and a plurality of test connection traces are included;

[0056] The test unit is located on a side of the area where the output terminals are located away from the display area; the test connection line is configured to connect the test unit and the output terminals;

[0057] The output terminal electrically connected to the airfoil trace is also directly electrically connected to the test connection trace.

[0058] In some embodiments of the present application, an orthographic projection of the wing-shaped trace electrically connected to the same output terminal on the substrate and an orthographic projection of the test connection trace on the substrate partially overlap.

[0059] In some embodiments of the present application, a test unit is included, and the test unit is divided into a display test unit and a touch test unit;

[0060] At least one of the display test unit and the touch test unit is located at a side of the display area away from the fan-out area, and the remaining one is located in the fan-out area or the binding area.

[0061] In some embodiments of the present application, the area of ​​the display area away from the fan-out area includes a central area and two corner areas located on both sides of the central area; the display test unit and the touch test unit each include a plurality of test sub-units, and the projection shape of the test sub-units on the substrate is rectangular;

[0062] The test subunits in the corner area are arranged around the edge of the display area; the long sides of the rectangles in the corner area are parallel, or there is an angle of a preset angle between the long sides of two adjacent rectangles in the corner area.

[0063] In some embodiments of the present application, the display panel includes a plurality of first signal conditioning lines, wherein the first signal conditioning lines are located between the fan-out traces and the wing traces;

[0064] Among them, in the third direction, the arrangement order of each fan-out routing is different from the arrangement order of each wing-shaped routing; the arrangement order of one end of each first signal adjustment line connected to the fan-out routing is the same as the arrangement order of each fan-out routing, and the arrangement order of one end of each first signal adjustment line connected to the wing-shaped routing is the same as the arrangement order of each wing-shaped routing; the third direction intersects with the first direction.

[0065] In some embodiments of the present application, the display panel includes a plurality of second signal conditioning lines, and for each of the fan-out lines electrically connected to the output terminal through the area where the first side is located, a second signal conditioning line is further provided between the fan-out line and the output terminal;

[0066] In which, in the third direction, the arrangement order of each fan-out routing is different from the arrangement order of each output terminal; the arrangement order of one end of each second signal adjustment line connected to the fan-out routing is the same as the arrangement order of each fan-out routing, and the arrangement order of one end of each second signal adjustment line connected to the output terminal is the same as the arrangement order of each output terminal; the third direction intersects with the first direction.

[0067] In some embodiments of the present application, at least part of the line segments of each of the first airfoil profile lines is a serpentine structure.

[0068] In some embodiments of the present application, a material of a portion of the fan-out traces is a first conductive material, a material of another portion of the fan-out traces is a second conductive material, and a resistance of the first conductive material is greater than a resistance of the second conductive material;

[0069] A portion of each of the fan-out traces made of the first conductive material is electrically connected to the first wing trace, and a portion of each of the fan-out traces made of the second conductive material is electrically connected to the first wing trace;

[0070] The first wing-shaped routing electrically connected to the fan-out routing made of the first conductive material has a serpentine structure.

[0071] In some embodiments of the present application, the driver chip further includes a plurality of input terminals, and each of the input terminals is arranged along an extension direction of the second side;

[0072] An orthographic projection of the wing-shaped trace on the substrate of the display panel and an orthographic projection of the input terminal on the substrate do not overlap with each other.

[0073] In some embodiments of the present application, the fan-out trace includes a first fan-out segment and a second fan-out segment connected to each other, the first fan-out segment is electrically connected to the signal line of the display area, and the second fan-out segment is electrically connected to the output terminal;

[0074] Wherein, there is a preset angle between the second fan-out segment and the edge of the display area close to the fan-out area;

[0075] The sine value of the preset angle is equal to the ratio of the width of the area occupied by all the second fan-out segments in a direction perpendicular to the extension direction thereof to half the width of the display area in a direction parallel to the first side.

[0076] In a second aspect, an embodiment of the present application provides a display device comprising the display panel as described above.

[0077] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0079] FIG1 is a schematic structural diagram of a display panel in a related art provided by an embodiment of the present application;

[0080] 2 to 6 and 10 are schematic structural diagrams of six different display panels provided in embodiments of the present application;

[0081] FIG7 is a schematic structural diagram of the binding area of ​​the display panel shown in FIG6 ;

[0082] FIG8 is a schematic structural diagram of the binding area of ​​the display panel shown in FIG3 ;

[0083] FIG9 is a schematic structural diagram of the binding area of ​​the display panel shown in FIG10 ;

[0084] 11 and 12 are schematic diagrams of two structures of the corner area of ​​the display panel shown in FIG10 ;

[0085] FIG13 is a schematic structural diagram of a first signal conditioning line / a second signal conditioning line provided in an embodiment of the present application;

[0086] FIG14 is a schematic diagram of a serpentine structure of a first airfoil routing provided by an embodiment of the present application;

[0087] FIG15 is a schematic diagram of an airfoil wiring structure of a display panel of a display touch integration technology provided by an embodiment of the present application;

[0088] FIG16 and FIG19 are schematic diagrams of structures in which two airfoil-shaped traces pass through the second side of the driver chip according to embodiments of the present application;

[0089] FIG17 is a schematic diagram of the arrangement position of a fan-out line provided in an embodiment of the present application;

[0090] FIG18 is a schematic structural diagram of a binding area and a fan-out area of ​​a display panel provided in an embodiment of the present application;

[0091] FIG20 is a schematic structural diagram of a display panel in another related art provided by an embodiment of the present application;

[0092] FIG21 is a schematic structural diagram of another display panel provided in an embodiment of the present application;

[0093] FIG22 is a schematic structural diagram of the receiving terminal in FIG20;

[0094] FIG23 is a schematic cross-sectional view of FIG22 along the direction A1A2;

[0095] FIG24 is a schematic structural diagram of the receiving terminal in FIG21;

[0096] FIG25 is a schematic cross-sectional view of FIG24 along the B1B2 direction;

[0097] FIG26 is a schematic diagram of a design dimension of the display panel shown in FIG20 ;

[0098] FIG27 is a schematic diagram of a design dimension of the display panel shown in FIG21 ;

[0099] 28-40 are schematic structural diagrams of twelve display panels provided in the embodiments of the present application. Specific embodiments

[0100] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0101] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as having an open, inclusive meaning, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present application. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0102] In the embodiments of the present application, words such as "first" and "second" are used to indicate parts of identical or similar items with substantially the same functions and effects only for the purpose of clearly describing the technical solutions of the embodiments of the present application, and shall not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0103] In the related art, as shown in reference figure 1, the fan-out area of ​​the display panel is provided with a very dense driving signal line 1 (also called fan-out routing), which greatly reduces the design space of the fan-out area. In addition, since the line width of the driving signal line 1 is relatively narrow, the resistance of the driving signal line 1 itself is relatively large, making it difficult to achieve high-frequency charging of the display product.

[0104] Based on this, an embodiment of the present application provides a display panel, as shown in FIG2 and FIG3 , including:

[0105] Display area AA;

[0106] A fan-out area F located on one side of the display area AA;

[0107] A binding area B is located on a side of the fan-out area F away from the display area AA; a driver chip IC is disposed in the binding area B. The driver chip IC includes a first side 101 adjacent to the fan-out area F, a second side 102 opposite the first side 101, and two third sides 103 connecting the first side 101 and the second side 102; the driver chip IC also includes a plurality of output terminals 4, which are disposed near the first side 101.

[0108] The display panel includes:

[0109] A plurality of fan-out traces 2 located in the fan-out region F;

[0110] a plurality of airfoil traces 3 located at least in the binding area B;

[0111] Among them, part of the fan-out routing 2 extends from the fan-out area F to the area where the first side 101 is located, and is electrically connected to the output terminal 4; another part of the fan-out routing 2 is electrically connected to the output terminal 4 through the wing routing 3, and the wing routing 3 passes through the area where the first side 101, the two third sides 103 and at least one of the second side 102 are located.

[0112] It should be noted that the description of "a portion of fan-out routing, another portion of fan-out routing" in the embodiments of this application refers to two different portions of fan-out routing. However, the fan-out routing provided in the embodiments of this application includes, but is not limited to, these two portions and may also include fan-out routing from other portions. The descriptions of "a portion, another portion; a portion, another portion" elsewhere in the text have similar meanings to those here and are not repeated here.

[0113] In an exemplary embodiment, part of the fan-out trace 2 is electrically connected to the output terminal 4 through the wing trace 3. It can be understood that the wing trace 3 is located between the fan-out trace 2 and the output terminal 4, and the wing trace 3 is at least located in the binding area B.

[0114] Among them, the meaning of multiple wing-shaped routing lines 3 located at least in the binding area B is: all wing-shaped routing lines 3 are located in the binding area B; or, part of the wing-shaped routing lines 3 are located in the binding area B, and another part of the wing-shaped routing lines 3 can extend from the binding area B to the fan-out area F; or, part of the line segments of the wing-shaped routing lines 3 are located in the binding area B, and another part of the line segments of the wing-shaped routing lines are located in the fan-out area F.

[0115] Exemplarily, referring to FIG3 , the wing-shaped trace 3 is located in the binding area B, and the wing-shaped trace 3 is wound from the binding area B to electrically connect part of the fan-out trace 2 to the corresponding output terminal.

[0116] For example, as shown in reference figure 18, part of the line segment of the wing-shaped trace 3 is located in the binding area B, and another part of the line segment of the wing-shaped trace 3 is located in the fan-out area F. It can be understood that the wing-shaped trace 3 extends from the binding area B to the fan-out area F, and the wing-shaped trace 3 is wound from the binding area B to the fan-out area F, and then passes through the first side 101 to electrically connect part of the fan-out trace 2 and the corresponding output terminal 4.

[0117] The specific type of the driver chip IC is not limited here. For example, the driver chip may be a display driver chip; or the driver chip may be a TDDI chip.

[0118] The specific type of the fan-out trace 2 is not limited herein. For example, the fan-out trace 2 may include a display fan-out trace (also known as a display drive line or a source drive line); or, the fan-out trace 2 may include a touch fan-out trace; or, the fan-out trace 2 may include both a display fan-out trace and a touch fan-out trace.

[0119] When the display panel is a touch and display integrated display panel (TDDI display panel), the fan-out wiring includes both display fan-out wiring and touch fan-out wiring.

[0120] In an exemplary embodiment, a portion of the display fan-out routing can be set to be electrically connected to the output terminal 4 through the wing routing 3, and the wing routing 3 passes through the area where the first side 101, the two third sides 103 and at least one of the second side 102 are located, and the touch fan-out routing and another portion of the display fan-out routing extend from the fan-out area F to the area where the first side 101 is located, and are electrically connected to the output terminal 4.

[0121] Alternatively, a portion of the touch fan-out routing can be set to be electrically connected to the output terminal 4 through the wing-shaped routing 3, and the wing-shaped routing 3 passes through the area where the first side 101, the two third sides 103 and at least one of the second side 102 are located, displaying the fan-out routing and another portion of the touch fan-out routing extending from the fan-out area F to the area where the first side 101 is located, and electrically connected to the output terminal 4.

[0122] Alternatively, part of the touch fan-out routing and part of the display fan-out routing can be arranged to be electrically connected to the output terminal 4 through the wing-shaped routing 3, and the wing-shaped routing 3 passes through the area where the first side 101, the two third sides 103 and at least one of the second side 102 are located, and another part of the display fan-out routing and another part of the touch fan-out routing extend from the fan-out area F to the area where the first side 101 is located, and are electrically connected to the output terminal 4.

[0123] In an exemplary embodiment, as shown in FIG5 , the display panel includes a touch sensor Sensor for implementing a touch function, a plurality of touch electrode traces TX for connecting each touch sensor and each touch fan-out trace, and a plurality of data signal lines Data for connecting each pixel unit and each display fan-out trace.

[0124] When each touch electrode trace TX is located on both sides of the display area AA and each data signal line Data is located in the display area AA, the display fan-out traces (not shown in FIG5 ) electrically connected to the data signal lines Data can be placed in the middle area of ​​the fan-out area F, and the touch fan-out traces electrically connected to each touch electrode trace TX can be placed on both sides of the display fan-out traces. The touch fan-out traces are shown in FIG5 , and are drawn in the fan-out area F. In this case, the display fan-out traces electrically connected to the data signal lines Data can be extended from the fan-out area F to the area where the first side 101 is located and electrically connected to the output terminal 4. The touch fan-out traces electrically connected to the touch electrode traces TX are electrically connected to the output terminal 4 via the airfoil traces 3.

[0125] When each touch electrode trace TX and each data signal line Data are located in the display area AA, the extension direction and arrangement direction of the touch electrode trace TX and the data signal line Data are the same, and the touch electrode trace TX and the data signal line Data are arranged alternately. For example, two touch electrode traces TX and one data signal line Data may be arranged alternately in sequence, or they may be arranged alternately in other ways. In this case, the touch fan-out traces electrically connected to the touch electrode trace TX and the display fan-out traces electrically connected to the data signal line Data in the fan-out area F may also be arranged alternately. Therefore, some display fan-out traces may be arranged to extend directly from the fan-out area F to the area where the first side 101 is located and electrically connected to the output terminal 4, while another part of the display fan-out traces may be electrically connected to the output terminal 4 via the wing trace 3; some touch fan-out traces may be arranged to extend from the fan-out area F to the area where the first side 101 is located and electrically connected to the output terminal 4, while another part of the touch fan-out traces may be electrically connected to the output terminal 4 via the wing trace 3.

[0126] Of course, as shown in reference figure 15, all touch fan-out traces 22 can also be set to extend from the fan-out area F to the area where the first side 101 is located, and be electrically connected to the output terminal 4; the setting part shows that the fan-out trace 21 is electrically connected to the output terminal 4 through the wing-shaped trace 3 (the first wing-shaped trace 31 and the second wing-shaped trace 32).

[0127] The above-mentioned display panel can be any one of an LCD (Liquid Crystal Display) display panel, an OLED (Organic Light Emitting Diode) display panel, a Mini LED display panel or a Micro LED display panel.

[0128] The size of the above-mentioned display panel is not limited. It can be applied to large-size or extra-large-size (for example, 86 inches) UHD (Ultra High Definition) display devices or HD (High Definition) display devices, or it can also be applied to small-size (for example, 23.6 inches) UHD display devices or HD display devices.

[0129] The display panel may be a display panel using a non-TDDI (Touch and Display Driver Integration) technology, or may be a display panel using a TDDI technology.

[0130] For example, a display panel using TDDI technology can be classified as an ADS (Advanced Super Dimension Switch) type liquid crystal touch display screen or a HADS type liquid crystal touch display screen. The specific type of the display panel is not limited here.

[0131] In actual applications, for display panels that do not use TDDI technology, the driver chip IC is a display driver chip, and the drive signal line 1 is a display driver line (Source line). The display driver line can transmit the display drive signal output from the display driver chip to the data signal line (Data line) in the display panel to control the display of each pixel unit in the display area.

[0132] For the display panel using TDDI technology, the driver chip IC is a TDDI chip, and the driving signal line 1 includes a display driver line and a touch driver line. The display driver line can transmit the display driver signal output from the TDDI chip to the data signal line (Data line) in the display panel to control the display of each pixel unit in the display area; the touch driver line can transmit the touch driver signal output from the TDDI chip to the touch electrode line (TX line) in the display panel to control the touch sensor (Touch sensor) to realize the touch function.

[0133] Since the fan-out area of ​​the display panel using TDDI technology is provided with not only display drive lines but also touch drive lines, the design space of the fan-out area of ​​the display panel using TDDI technology is more limited, making it more difficult to achieve high-frequency charging.

[0134] However, in the display panel provided in the embodiment of the present application, a plurality of wing-shaped traces 3 are arranged in the binding area B. By winding the wing-shaped traces 3 (including winding from the upper side, left and right sides and lower side of the driver chip), part of the fan-out traces 2 are electrically connected to the output terminal 4 of the driver chip through the wing-shaped traces 3, thereby utilizing the area in the binding area B where the driver chip is not arranged, shortening the length of the fan-out trace 2 electrically connected by the wing-shaped trace 3, and greatly reducing the space occupied by the fan-out trace 2 in the fan-out area B. In actual applications, by increasing the line width of the fan-out trace 2 and the distance between two adjacent fan-out traces 2, the resistance of the fan-out trace 2 itself can be greatly reduced, thereby realizing high-frequency charging of each pixel unit in the display area AA, improving the charging rate of the display panel, shortening the charging time, and reducing the power consumption of the display panel.

[0135] In addition, in actual applications, combined with Figures 1 and 3, since part of the fan-out trace 2 is electrically connected to the output terminal 4 of the driver chip by winding the wing-shaped trace 3, the area in the binding area B where the driver chip is not set is utilized, and the length of the fan-out trace 2 electrically connected to the wing-shaped trace 3 is shortened, thereby reducing the dimension d2 of the fan-out area F in the direction along the display area AA pointing to the fan-out area F. Compared with the dimension d1 of the fan-out area F in the related art in the direction along the display area AA pointing to the fan-out area F, d2 can be 0.1mm-0.2mm smaller than d1, which is conducive to the preparation of a display panel with a narrow frame.

[0136] In an exemplary embodiment, referring to FIG. 18 , the airfoil trace 3 passes through the area where the first side 101 is located.

[0137] In actual applications, when winding is performed through the wing-shaped trace 3, a certain design space is released between the fan-out trace 2 electrically connected to the wing-shaped trace 3 and the fan-out trace 2 not electrically connected to the wing-shaped trace 3. The wing-shaped trace 3 can extend from the binding area B to the fan-out area F, and be wound from the area where the first side 101 is located, so that this part of the fan-out trace 2 is electrically connected to the output terminal 4 through the wing-shaped trace 3. Since the space in the area where the first side 101 is located is limited, a small number of wing-shaped traces 3 can be set according to the situation to pass through the area where the first side 101 is located and electrically connected to the output terminal 4, thereby reducing the design space occupied by the fan-out trace 2 in the fan-out area B to a certain extent.

[0138] It should be noted that FIG18 is drawn by taking as an example a case where part of the airfoil profile trace 3 passes through the area where the first side 101 is located, and part of the airfoil profile trace 3 passes through the area where the third side 103 is located.

[0139] In an exemplary embodiment, referring to FIG. 4 , the wing-shaped trace 3 passes through the area where the second side 102 of the driver chip IC is located.

[0140] In actual applications, a circuit board is also arranged between the second side 102 of the driver chip IC and the edge of the display panel. The wing-shaped trace 3 can pass through the area between the second side 102 and the circuit board, and then pass through the area where the second side 102 is located to be electrically connected to the output terminal 4 of the driver chip.

[0141] In an exemplary embodiment, part of the wing-shaped trace 3 passes through the area where the second side 102 of the driver chip IC is located, and another part of the wing-shaped trace 3 passes through the area where at least one of the two third sides 103 of the driver chip IC is located.

[0142] In an exemplary embodiment, referring to FIG. 3 , the wing-shaped trace 3 passes through an area where at least one of the two third sides 103 of the driver chip IC is located.

[0143] In practical applications, since the design space on both sides (103) and the bottom side of the driver chip IC in the binding area B is relatively sufficient, the wing-shaped trace 3 can be arranged to be wound around the areas on both sides (103) and the bottom side (102) of the driver chip IC.

[0144] Exemplarily, when the wing-shaped trace 3 passes through the area where at least one of the two third sides 103 of the driver chip IC is located, the number of wiring of the wing-shaped trace 3 (i.e., the number of fan-out traces 2 wound) is related to the minimum distance between the area where the output terminal 4 of the driver chip is located and the area where the input terminal 5 of the driver chip is located, the line width of the wing-shaped trace 3, and the gap between two adjacent wing-shaped traces 3. For example, the sum of the line width of the wing-shaped trace 3 and the gap between two adjacent wing-shaped traces 3 (Pitch) is 4.0μm, and the minimum distance between the area where the output terminal 4 of the driver chip is located and the area where the input terminal 5 of the driver chip is located is 400μm. 100 wing-shaped traces 3 can be set, and 100 fan-out traces 2 can be wound. In actual applications, the number of fan-out traces 2 wound can be determined according to the situation, and it is not limited here.

[0145] In an exemplary embodiment, as shown in FIG18 , part of the airfoil trace 3 passes through the area where the first side 101 is located, and another part of the airfoil trace 3 passes through the area where at least one of the two third side edges 103 is located.

[0146] In actual applications, since part of the fan-out traces 2 are electrically connected to the output terminal 4 of the driver chip after being wound from the binding area B through the wing traces 3, in the fan-out area F, there is an available space F1 between the fan-out traces 2 electrically connected to the wing traces 3 and the fan-out traces 2 not electrically connected to the wing traces 3, so that the wing traces 3 are extended from the binding area B to the area marked F1 in Figure 18, and then pass through the area where the first side 101 of the driver chip is located, and are electrically connected to the output terminal 4. In addition, by setting up another part of the wing traces 3 to pass through the area where at least one of the two third sides 103 is located, the number of fan-out traces 2 electrically connected to the output terminal 4 through the wing traces 3 can be greatly increased, thereby freeing up the design space of the fan-out area F. In practical applications, by increasing the line width of the fan-out line 2 and the distance between two adjacent fan-out lines 2, the resistance of the fan-out line 2 itself can be greatly reduced, thereby achieving high-frequency charging of each pixel unit in the display area AA, improving the charging rate of the display panel, shortening the charging time, and reducing the power consumption of the display panel.

[0147] In some embodiments of the present application, as shown in FIG21 , the display panel further includes a plurality of receiving terminals 41 , which are configured to be bound to the output terminals 4 of the driver chip; the orthographic projections of the receiving terminals 41 on the substrate of the display panel overlap with the orthographic projections of the output terminals 4 on the substrate; some of the receiving terminals 41 are electrically connected to the fan-out traces 2 passing through the area where the first side 101 is located, and other parts of the receiving terminals 41 are electrically connected to the airfoil traces 3;

[0148] For the receiving terminal 41 electrically connected to the wing-shaped trace 3 , the orthographic projection of the wing-shaped trace 3 on the substrate overlaps with the orthographic projection of at least one receiving terminal 4 on the substrate.

[0149] In an exemplary embodiment, the overlap of the orthographic projection of the receiving terminal 41 on the substrate of the display panel and the orthographic projection of the output terminal 4 on the substrate means that there is an overlapping area between the orthographic projection of the outer contour of the receiving terminal 41 on the substrate of the display panel and the orthographic projection of the outer contour of the output terminal 4 on the substrate; or, the orthographic projection of the outer contour of the receiving terminal 41 on the substrate of the display panel and the orthographic projection of the outer contour of the output terminal 4 on the substrate completely overlap.

[0150] In the drawings provided in the embodiments of the present application, the drawing is performed by taking the example that the orthographic projection of the outer contour of the receiving terminal 41 on the substrate of the display panel and the orthographic projection of the outer contour of the output terminal 4 on the substrate completely overlap. Therefore, in the relevant drawings of the output terminal 4 provided with the driving chip, only the structure of the output terminal 4 is drawn, and the structure of the receiving terminal 41 on the display panel is not reflected, which is explained here.

[0151] In an exemplary embodiment, the receiving terminal 41 and the output terminal 4 of the driver chip are connected one-to-one, and the wing-shaped trace 3 or the fan-out trace 2 are first electrically connected to the receiving terminal 41, and the receiving terminal 41 is then electrically connected to the output terminal 4 of the driver chip through bonding.

[0152] In an exemplary embodiment, for the receiving terminal 41 electrically connected to the wing-shaped trace 3, the meaning of the overlap of the orthographic projection of the wing-shaped trace 3 on the substrate and the orthographic projection of at least one receiving terminal 4 on the substrate is as follows: with reference to FIG21, taking the first group of receiving terminals S1 as an example, the first group of receiving terminals S1 includes 5 receiving terminals 41; wherein, for the first receiving terminal 41, the wing-shaped traces 3 electrically connected to the 5 receiving terminals 41 in the first group of receiving terminals S1 all overlap with it in a direction perpendicular to the substrate; for the second receiving terminal 41, the other four wing-shaped traces in the first group of receiving terminals S1 except the wing-shaped trace 3 electrically connected to the first receiving terminal 41 overlap with it. 3 all overlap with it in a direction perpendicular to the substrate; for the third receiving terminal 41, the other three wing-shaped traces 3 in the first group of receiving terminals S1 except the wing-shaped traces 3 electrically connected to the first and second receiving terminals 41 all overlap with it in a direction perpendicular to the substrate; for the fourth receiving terminal 41, the other two wing-shaped traces 3 in the first group of receiving terminals S1 except the wing-shaped traces 3 electrically connected to the first, second and third receiving terminals 41 all overlap with it in a direction perpendicular to the substrate; for the fifth receiving terminal 41, only the wing-shaped trace 3 electrically connected to the fifth receiving terminal 41 overlaps with it in a direction perpendicular to the substrate.

[0153] It should be noted that Figure 21 provided in the embodiment of the present application is drawn only based on the example that the first group of receiving terminals S1 includes 5 receiving terminals, the second group of receiving terminals S2 includes 5 receiving terminals, and the left area of ​​the binding area B includes 10 wing-shaped traces. In actual applications, the specific number is not limited and can be determined according to design requirements.

[0154] In addition, it should be noted that Figure 21 provided in the embodiment of the present application only illustrates the arrangement of multiple receiving terminals 41 in two rows as an example. In actual applications, multiple receiving terminals 41 can also be arranged in three rows, or multiple receiving terminals 41 can be arranged in four rows, or arranged in other ways. The specific arrangement can be determined according to the arrangement of the output terminals 4, and is not limited here.

[0155] Compared with the related art shown in Figure 20, in which the orthographic projection of the fan-out trace 2 on the substrate and the orthographic projection of the receiving terminal 41 on the substrate do not overlap with each other, as shown in reference to Figure 21, in an embodiment of the present application, by setting the wing-shaped trace 3 winding, for the receiving terminal 41 electrically connected to the wing-shaped trace 3, the orthographic projection of the wing-shaped trace 3 on the substrate overlaps with the orthographic projection of at least one receiving terminal 4 on the substrate. On the one hand, the design space of the fan-out area F of the display panel is saved; on the other hand, the space between multiple receiving terminals 41 is saved, and the arrangement position of the receiving terminal 41 can be designed more flexibly, so that the arrangement position of the output terminal 4 in the driver chip can be set more flexibly, or in other words, the type of matching driver chip can be selected more flexibly.

[0156] In addition, the display panel provided in the embodiment of the present application as shown in FIG21 has one of the design dimensions of its fan-out area F and binding area B as shown in FIG27. It can be seen that the width of its fan-out area F (the distance between the edge of the display area AA and the first side of the driver chip IC) is 1.01 mm; the distance between the first side and the second side of the driver chip is 0.77 mm, the width of the flexible printed circuit board (FPC) is 0.35 mm, the distance between the driver chip and the flexible printed circuit board is 0.3 mm, and the distance from the flexible printed circuit board (FPC) to the edge of the display panel (the edge of the array substrate) is 0.07 mm, that is, the width of the binding area is 1.49 mm; the width of the lower frame of the display panel is 1.01 mm + 1.49 mm = 2.5 mm. The display panel in the related art shown in FIG20 has a design size as shown in FIG26 . By comparison, it can be seen that the width of the fan-out region F (the distance between the edge of the display area AA and the first side of the driver chip IC) of the display panel provided in the embodiment of the present application as shown in FIG21 is 0.1 mm smaller than the width of the fan-out region F of the display panel in the related art. The units of the numbers marked in FIG26 and FIG27 are all millimeters (mm).

[0157] In some embodiments of the present application, as shown in FIG21 , the receiving terminals 41 electrically connected to the wing-shaped traces 3 are divided into a first group S1 arranged along the first side 101 and a second group S2 arranged along the second side 102; the wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 are arranged on the same layer, and the wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 include a first wing-shaped trace 31 and a second wing-shaped trace 32, and the first wing-shaped trace 31 and the second wing-shaped trace 32 are located on different layers;

[0158] The wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 and the second wing-shaped traces 32 in the wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 are arranged on the same layer.

[0159] In an exemplary embodiment, the material of each second wing-shaped trace 32 in the wing-shaped trace 3 electrically connected to the first group of receiving terminals S1 and the second group of receiving terminals S2 is the same, for example, its material is the same as the material of the source and drain metal layer (SD) in the display area AA; or, its material is the same as the material of the gate (Gate) in the display area AA.

[0160] In an exemplary embodiment, when the material of the wing-shaped trace 3 is the same as the material of the source / drain metal layer (SD) in the display area AA, the wing-shaped trace 3 can be manufactured on the same layer as the source / drain metal layer (SD) in the display area AA; when the material of the wing-shaped trace 3 is the same as the material of the gate (Gate) in the display area AA, the wing-shaped trace 3 can be manufactured on the same layer as the gate (Gate) in the display area AA.

[0161] In some embodiments of the present application, as shown in FIG25 , the receiving terminal 41 electrically connected to the wing-shaped trace 3 includes:

[0162] The gate layer located on the substrate 401 includes two conducting pads 404 that are independent of each other and arranged opposite to each other;

[0163] a dielectric layer 405 covering the gate layer and exposing a portion of each conductive pad 404;

[0164] The source / drain metal layer 406 covers the dielectric layer 405 and directly contacts the exposed portion of the conductive pad 404 ;

[0165] The electrode layer 407 covers the source / drain metal layer 406 and is configured to directly contact the output terminal 4 of the driver chip.

[0166] The gate layer and the gate layer in the display area AA are made of the same material, are provided in the same layer, and are prepared in one patterning process.

[0167] The electrode layer 407 and the pixel electrodes in the display area AA are made of the same material, are provided in the same layer, and are manufactured in one patterning process.

[0168] The above-mentioned electrode layer 407 covering the source-drain metal layer 406 means that the orthographic projection of the electrode layer 407 on the substrate covers the orthographic projection of the source-drain metal layer 406 on the substrate, and the orthographic projection area of ​​the electrode layer 407 on the substrate is larger than the orthographic projection area of ​​the source-drain metal layer 406 on the substrate. In this way, the source-drain metal layer 406 can be protected.

[0169] As shown in reference figure 25, the receiving terminal 41 also includes a buffer layer 402 located on the substrate 401 and a gate insulating layer 403 located on the buffer layer 402. Of course, the gate insulating layer 403 can also be located on the side of the gate layer away from the substrate 401. The specific details can be determined according to the design of the actual product and are not limited here.

[0170] FIG24 shows a top view of a receiving terminal 41 provided in an embodiment of the present application, wherein FIG25 is a cross-sectional view of FIG24 along the B1B2 direction.

[0171] Compared to the related art shown in Figures 22 and 23, in which the conductive pad 404 of the receiving terminal 41 is set as an integrated block structure and occupies the central area of ​​the receiving terminal 41, in the embodiment of the present application, referring to Figures 24 and 25, by setting two conductive pads 404 that are independent of each other and relatively arranged at the two ends of the receiving terminal 41, on the one hand, one of the two conductive pads 404 can be used as a spare conductive pad so that it can be repaired and replaced when one conductive pad 404 has an abnormality; on the other hand, because the two conductive pads 404 are relatively arranged at the two ends of the receiving terminal 41, the area between the two conductive pads 404 of the receiving terminal 41 is reserved for the design of other structures, thereby increasing the design space. Among them, Figure 23 is a cross-sectional view of Figure 22 along the A1A2 direction.

[0172] In some embodiments of the present application, in combination with Figures 21 and 24, the second wing-shaped traces 32 in the wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 and the second wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 are both located in the gate layer and pass through the area between the two conductive pads 404 of the receiving terminal 41.

[0173] In the embodiment of the present application, since the two conductive pads 404 are relatively arranged in the areas at both ends of the receiving terminal 41, the area between the two conductive pads 404 of the receiving terminal 41 is reserved, and the wing-shaped trace 3 is arranged in the gate layer, and the wing-shaped trace passes through the area between the two conductive pads 404 of each receiving terminal 41; compared with the trace passing through the area between the receiving terminals 41 in the related art, the design method in the embodiment of the present application saves the design space of the binding area and the fan-out area of ​​the display panel to a great extent while ensuring the normal and stable transmission of the electrical signal. In this way, on the one hand, high-frequency charging can be achieved by appropriately increasing the line width of the trace, and on the other hand, it is conducive to the preparation of narrow-frame display products.

[0174] In some embodiments of the present application, as shown in FIG21 , for one receiving terminal 41 in the first group of receiving terminals S1, an airfoil trace 3 is electrically connected to its conductive pad 404, and the orthographic projections of other airfoil traces 3 electrically connected to the first group of receiving terminals S1 on the substrate and their orthographic projections of the conductive pad 404 on the substrate do not overlap with each other;

[0175] For one of the receiving terminals 41 in the second group of receiving terminals S2, a second wing-shaped trace 32 is electrically connected to its conductive pad 404, and the orthographic projections of other second wing-shaped traces 32 electrically connected to the second group of receiving terminals S2 on the substrate do not overlap with the orthographic projections of their conductive pads 404 on the substrate.

[0176] In an embodiment of the present application, since the wing-shaped trace that overlaps with the receiving terminal 41 in a direction perpendicular to the substrate is located in the gate layer, the conductive pad 404 of the receiving terminal 41 is also located in the gate layer. In order to ensure that there is no signal transmission confusion between the receiving terminal 41 and each wing-shaped trace 3, for each receiving terminal 41 connected to the wing-shaped trace 3, by setting a receiving terminal 41, only the wing-shaped trace 3 electrically connected to it overlaps in the direction perpendicular to the substrate, and there is no overlap with other wing-shaped traces 3 in the direction perpendicular to the substrate.

[0177] In some embodiments of the present application, as shown in FIG40 , the display panel further includes a plurality of spare receiving terminals 42 , and the spare receiving terminals 42 have the same structure as the receiving terminals 41 ;

[0178] The spare receiving terminals 42 arranged in the same row as the first group of receiving terminals S1 are first spare receiving terminals, and the spare receiving terminals 42 arranged in the same row as the second group of receiving terminals S2 are second spare receiving terminals;

[0179] Among them, at least part of the wing-shaped trace 3 electrically connected to the first group of receiving terminals passes through the area between the two conductive pads 404 in the first spare terminal, and at least part of the wing-shaped trace 3 electrically connected to the second group of receiving terminals passes through the area between the two conductive pads 404 in the second spare terminal.

[0180] In an exemplary embodiment, as shown in FIG. 40 , the spare receiving terminal 42 is not electrically connected to the wing-shaped trace 3 .

[0181] The specific number of the spare receiving terminals (Dummy receiving terminals) 42 in the display panel is not limited here. Exemplarily, the number of the spare receiving terminals 42 is 5, wherein the number of the first spare receiving terminals is 2 and the number of the second spare receiving terminals is 3.

[0182] In an exemplary embodiment, the spare receiving terminal 42 is located at both ends of the multiple receiving terminals 41; or, as shown in Figure 40, the spare receiving terminal 42 is located on one side of the multiple receiving terminals 41 (wherein the first spare receiving terminal is located on the left side of the first group of receiving terminals 41, and the second spare receiving terminal is located on the left side of the second group of receiving terminals 41); or, the spare receiving terminal 42 and the receiving terminal 41 are arranged at intervals.

[0183] In an exemplary embodiment, as shown in FIG40 , the area between two conductive pads 404 in some receiving terminals 41 is not provided with an airfoil trace 3. Of course, at least one airfoil trace 3 may pass through the area between two conductive pads 404 in each receiving terminal 41. The specific arrangement may be determined based on actual circumstances.

[0184] In some embodiments of the present application, as shown in FIG15 , the fan-out trace 2 includes a display fan-out trace 21 and a touch fan-out trace 22 ;

[0185] Each touch fan-out trace 22 extends from the fan-out region F to the area where the first side 101 is located, and is electrically connected to the output terminal 4 ; some display fan-out traces 21 are electrically connected to the output terminal through the wing trace 3 .

[0186] It should be noted that in actual applications, since the number of touch fan-out lines 22 is less than the number of display fan-out lines 21, the display fan-out lines 21 can be set to be electrically connected to the output terminal 4 by winding the wing-shaped lines 3, so as to facilitate the arrangement of each fan-out line 2 in the fan-out area F.

[0187] Of course, for the current mainstream display products, since the number of touch fan-out lines 22 is less than the number of display fan-out lines 21, the display fan-out lines 21 are set to be electrically connected to the output terminal 4 by winding the wing-shaped lines 3. If for individual display products, due to design requirements, the touch fan-out lines 22 can also be set to be electrically connected to the output terminal 4 by winding the wing-shaped lines 3. Here we only take the current actual needs as an example to illustrate.

[0188] In addition, FIG15 provided in the embodiment of the present application is only illustrated by taking the example that the airfoil trace 3 passes through the area where the second side 102 is located.

[0189] In an exemplary embodiment, in the structure shown in FIG18 , when the airfoil trace 3 passes through the area where the first side 101 is located, for the fan-out trace 2 electrically connected to this portion of the airfoil trace 3, a certain amount of design space is released between the fan-out trace 2 electrically connected to the airfoil trace 3 and the fan-out trace 2 not electrically connected to the airfoil trace 3. The airfoil trace 3 can extend from the binding area B to the fan-out area F and be wound around the area where the first side 101 is located, so that this portion of the fan-out trace 2 is electrically connected to the output terminal 4 through the airfoil trace 3. Due to the limited space in the area where the first side 101 is located, the airfoil trace 3 electrically connected to the display fan-out trace 21 can be arranged to pass through the area where the first side 101 is located and be electrically connected to the output terminal 4.

[0190] In an exemplary embodiment, for the structure shown in Figure 4, when the wing-shaped trace 3 passes through the area where the second side 102 of the driver chip IC is located, for the fan-shaped trace 2 electrically connected to this part of the wing-shaped trace 3, this part of the fan-out trace 2 can be set to be a display fan-out trace 21, so that the display fan-out trace 21 passes through the area where the second side 102 of the driver chip IC is located, and then is electrically connected to the output terminal 4, while the other part of the display fan-out trace 21 and all the touch fan-out traces 22 extend from the fan-out area F to the binding area B, pass through the area where the first side is located, and are electrically connected to the output terminal 4.

[0191] In an exemplary embodiment, as shown in reference figure 28, the fan-out routing 2 includes a display fan-out routing 21 and a touch fan-out routing 22. Each touch fan-out routing 22 extends from the fan-out region F to the area where the first side 101 is located, and is electrically connected to the receiving terminal 41. The receiving terminal 41 is electrically connected to the output terminal 4 (the structure of the output terminal 4 of the driver chip is not shown in figure 28); part of the display fan-out routing 21 is electrically connected to the receiving terminal 41 through the wing routing 3, and the wing routing 3 passes through the area on both sides of the driver chip (the third side 103).

[0192] The display fan-out trace 21 electrically connected to the receiving terminal 41 through the wing-shaped trace 3 can be divided into two parts.

[0193] The first part shows that each wing-shaped trace 3 electrically connected to the fan-out trace 21 is located in the gate layer, and this part of the wing-shaped trace 3 passes through the area between the two conductive pads 404 of the receiving terminal 41 and is electrically connected to one of the conductive pads 404 of the corresponding receiving terminal 41.

[0194] The second part shows that the wing-shaped traces 3 electrically connected to the fan-out trace 21 include a first wing-shaped trace 31 and a second wing-shaped trace 32. The first wing-shaped trace 31 and the second wing-shaped trace 32 are located in different layers, and for each first wing-shaped trace 31, the second wing-shaped trace 32 electrically connected to it overlaps in a direction perpendicular to the substrate, and the extension direction of the overlapping area is parallel to the extension direction of the first wing-shaped trace 31 and the second wing-shaped trace 32. The second part shows that the second wing-shaped trace 32 of each wing-shaped trace 3 electrically connected to the fan-out trace 21 is located in the gate layer, and this part of the second wing-shaped trace 32 passes through the area between the two conductive pads 404 of the receiving terminal 41 and is electrically connected to one of the conductive pads 404 of the corresponding receiving terminal 41.

[0195] For example, with reference to FIG28 , the receiving terminals 41 electrically connected to the wing-shaped traces 3 can be divided into a first group S1 arranged along the first side 101 and a second group S2 arranged along the second side 102; the wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 are arranged on the same layer, and the wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 include a first wing-shaped trace 31 and a second wing-shaped trace 32, and the first wing-shaped trace 31 and the second wing-shaped trace 32 are located on different layers;

[0196] The wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 and the second wing-shaped traces 32 in the wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 are arranged on the same layer. In addition, the wing-shaped traces 3 electrically connected to the first group of receiving terminals S1 and the second wing-shaped traces 3 electrically connected to the second group of receiving terminals S2 are both located in the gate layer and pass through the area between the two conductive pads 404 of the receiving terminal 41.

[0197] In an exemplary embodiment, as shown in FIG29 , each touch fan-out trace 22 extends from the fan-out region F to the area of ​​the first side 101 and is electrically connected to the receiving terminal 41, which is in turn electrically connected to the output terminal 4 (the structure of the output terminal 4 of the driver chip is not shown in FIG29 ). Some display fan-out traces 21 are electrically connected to the receiving terminal 41 via the wing trace 3, and the wing trace 3 passes through the area on both sides of the driver chip (the third side 103). The display fan-out trace 21 electrically connected to the receiving terminal 41 via the wing trace 3 can be divided into three parts.

[0198] The first part shows that the fan-out trace 21 is electrically connected to the receiving terminal 41 through the wing trace 3 , and the wing trace 3 passes through the area where the first side 101 is located.

[0199] The second part shows that each wing-shaped trace 3 electrically connected to the fan-out trace 21 is located in the gate layer, and this part of the wing-shaped trace 3 passes through the area between the two conductive pads 404 of the receiving terminal 41 and is electrically connected to one of the conductive pads 404 of the corresponding receiving terminal 41.

[0200] The third part shows that the wing-shaped traces 3 electrically connected to the fan-out trace 21 include a first wing-shaped trace 31 and a second wing-shaped trace 32. The first wing-shaped trace 31 and the second wing-shaped trace 32 are located in different layers, and for each first wing-shaped trace 31, the second wing-shaped trace 32 electrically connected to it overlaps in a direction perpendicular to the substrate, and the extension direction of the overlapping area is parallel to the extension direction of the first wing-shaped trace 31. The second part shows that the second wing-shaped trace 32 of each wing-shaped trace 3 electrically connected to the fan-out trace 21 is located in the gate layer, and this part of the second wing-shaped trace 32 passes through the area between the two conductive pads 404 of the receiving terminal 41 and is electrically connected to one of the conductive pads 404 of the corresponding receiving terminal 41.

[0201] In an exemplary embodiment, as shown in reference figure 30, for a sunken driver chip, since the area occupied by its output terminal 4 and input terminal 5 after arrangement is triangular, the design space between the area where the output terminal 4 is located and the area where the input terminal 5 is located is limited, each touch fan-out trace 22 and part of the display fan-out trace 21 can be set to extend from the fan-out area F to the area where the first side 101 is located, and electrically connected to the output terminal 4, and part of the display fan-out trace 21 passes through the area where the lower side (second side 102) of the driver chip through the wing-shaped trace 3, and passes through the area where the input terminal 5 is located to be electrically connected to the output terminal 4.

[0202] In an exemplary embodiment, as shown in reference figure 31, each touch fan-out line 22 and part of the display fan-out line 21 are set to extend from the fan-out area F to the area where the first side 101 is located, and are electrically connected to the receiving terminal 41, and part of the display fan-out line 21 is electrically connected to the receiving terminal 41 through the wing-shaped line 3.

[0203] Among them, the display fan-out trace 21 electrically connected to the receiving terminal 41 through the wing-shaped trace 3 is divided into two parts. The first part shows that the fan-out trace 21 passes through the area where the lower side of the driver chip (the second side 102) is located, and passes through the area where the input terminal 5 is located to be electrically connected to the output terminal 4 (actually, it is first electrically connected to the receiving terminal 41, and the receiving terminal 41 is electrically connected to the output terminal 4). The second part shows that the wing-shaped trace 3 connected to the fan-out trace 21 passes through the area where the two sides of the driver chip (the third side 103) are located, passes through the area between the two conductive pads 404 of the receiving terminal 41, and then electrically connects to one of the conductive pads 404 of the corresponding receiving terminal 41. Among them, the second part shows that the wing-shaped trace 3 connected to the fan-out trace 21 is located in the gate layer and is arranged on the same layer as the conductive pad 404.

[0204] In an exemplary embodiment, as shown in FIG32 , each touch fan-out trace 22 and a portion of the display fan-out trace 21 are configured to extend from the fan-out region F to the area where the first side 101 is located, and are electrically connected to the output terminal 4. A portion of the display fan-out trace 21 is electrically connected to the output terminal 4 via the wing trace 3. The display fan-out trace 21 electrically connected to the output terminal 4 via the wing trace 3 is divided into two parts. The first portion of the display fan-out trace 21 passes through the area where the upper side of the driver chip (the first side 101) is located via the wing trace 3 and is electrically connected to the output terminal 4. The second portion of the display fan-out trace 21 electrically connected to each wing trace 3 includes a first wing trace 31 and a second wing trace 32. The first wing trace 31 and the second wing trace 32 are located on different layers. For each first wing trace 31, the second wing trace 32 electrically connected thereto overlaps in a direction perpendicular to the substrate, and the extending direction of the overlapping region is parallel to the extending direction of the first wing trace 31.

[0205] In an exemplary embodiment, referring to FIG37 or FIG38 , the airfoil trace 3 includes a display airfoil trace and a touch airfoil trace; the fan-out trace 2 includes a display fan-out trace 21 and a touch fan-out trace 22;

[0206] Part of the display fan-out wiring 21 is electrically connected to the output terminal 4 through the display wing-shaped wiring, and part of the touch fan-out wiring 22 is electrically connected to the output terminal 4 through the touch wing-shaped wiring.

[0207] It should be noted that in Figures 37 and 38 provided in the embodiments of the present application, there is no distinction between the markings for the display wing-shaped routing and the touch wing-shaped routing, wherein the wing-shaped routing 3 electrically connected to the display fan-out routing 21 is the display wing-shaped routing, and the wing-shaped routing 3 electrically connected to the touch fan-out routing 22 is the touch wing-shaped routing.

[0208] In an exemplary embodiment, as shown in FIG37 , a portion of the touch fan-out traces 22 and a portion of the display fan-out traces 21 extend from the fan-out region F to the area of ​​the first side 101 and are electrically connected to the receiving terminal 41, which is in turn electrically connected to the output terminal 4 (the structure of the output terminal 4 of the driver chip is not shown in FIG37 ). Another portion of the display fan-out traces 21 is electrically connected to the receiving terminal 41 via the display airfoil traces, and another portion of the touch fan-out traces 22 is electrically connected via the touch airfoil trace receiving terminal 41. Furthermore, the airfoil traces 3 (including the display airfoil traces and the touch airfoil traces) all pass through the area on both sides of the driver chip (the third side 103).

[0209] In an exemplary embodiment, as shown in reference figure 38, for a sunken driver chip, since the area occupied by its output terminal 4 and input terminal 5 after arrangement is triangular, the design space between the area where the output terminal 4 is located and the area where the input terminal 5 is located is limited, part of the touch fan-out routing 22 and part of the display fan-out routing 21 can be set to extend from the fan-out area F to the area where the first side 101 is located, and electrically connected to the output terminal 4; another part of the display fan-out routing 21 passes through the area where the lower side (second side 102) of the driver chip is located through the display wing-shaped routing, and passes through the area where the input terminal 5 is located to be electrically connected to the output terminal 4, and another part of the touch fan-out routing 22 passes through the area where the lower side (second side 102) of the driver chip through the touch wing-shaped routing, and passes through the area where the input terminal 5 is located to be electrically connected to the output terminal 4.

[0210] In an exemplary embodiment, as shown in reference figure 39, part of the touch fan-out routing 22 and part of the display fan-out routing 21 are set to extend from the fan-out area F to the area where the first side 101 is located, and are electrically connected to the output terminal 4; another part of the display fan-out routing 21 is electrically connected to the output terminal 4 through the display wing routing, and another part of the touch fan-out routing 22 is electrically connected to the output terminal 4 through the touch wing routing.

[0211] Among them, the display fan-out routing 21 electrically connected to the output terminal 4 through the display wing routing (the wing routing 3 electrically connected to the display fan-out routing 21) is divided into two parts. The first part of the display fan-out routing 21 passes through the area on the upper side of the driver chip (the first side 101) through the display wing routing and is electrically connected to the output terminal 4. The second part of the display fan-out routing 21 electrically connected to each display wing routing includes a first wing routing 31 and a second wing routing 32. The first wing routing 31 and the second wing routing 32 are located in different layers, and for each first wing routing 31, the second wing routing 32 electrically connected to it overlaps in a direction perpendicular to the substrate, and the extension direction of the overlapping area is parallel to the extension direction of the first wing routing 31.

[0212] The touch fan-out routing 22 electrically connected to the output terminal 4 through the touch wing routing (the wing routing 3 electrically connected to the touch fan-out routing 22) is also divided into two parts. The first part of the touch fan-out routing 22 passes through the area on the upper side of the driver chip (the first side 101) and is electrically connected to the output terminal 4. The touch wing routings electrically connected to the second part of the touch fan-out routing 22 also include a first wing routing 31 and a second wing routing 32. The first wing routing 31 and the second wing routing 32 are located in different layers, and for each first wing routing 31, the second wing routing 32 electrically connected to it overlaps in a direction perpendicular to the substrate, and the extension direction of the overlapping area is parallel to the extension direction of the first wing routing 31.

[0213] In an exemplary embodiment, referring to FIG. 4 , FIG. 6 and FIG. 7 , the airfoil traces 3 may be located in the same layer.

[0214] When the material of the wing-shaped trace 3 is the same as the material of the source / drain metal layer (SD) in the display area AA, the wing-shaped trace 3 can be manufactured on the same layer as the source / drain metal layer (SD) in the display area AA; when the material of the wing-shaped trace 3 is the same as the material of the gate (Gate) in the display area AA, the wing-shaped trace 3 can be manufactured on the same layer as the gate (Gate) in the display area AA.

[0215] For example, referring to Figures 4, 6, and 7, the arrangement order of the ends of each airfoil trace 3 connected to the fan-out trace 2 is opposite to the arrangement order of the ends of each airfoil trace 3 connected to the output terminal 4. In this case, to avoid signal confusion caused by inconsistent trace position sequence, the driver chip can adjust the order of output signals from the output terminal 4. Figure 7 is an enlarged schematic diagram of a partial area of ​​Figure 6.

[0216] In some embodiments of the present application, as shown in FIG18 , some of the airfoil traces 3 are arranged on the same layer, and another part of the airfoil traces 3 includes a first airfoil trace 31 and a second airfoil trace 32 , and the first airfoil trace 31 and the second airfoil trace 32 are located on different layers;

[0217] Among them, each of the wing-shaped traces 3 arranged on the same layer includes a first line segment a, a second line segment b, a third line segment c, a fourth line segment d and a fifth line segment e connected in sequence, wherein the first line segment a and the second line segment b are located in the binding area B, the third line segment c extends from the binding area B to the fan-out area F, and the fourth line segment d and the fifth line segment e are located in the fan-out area F; the first line segment a is electrically connected to the fan-out trace 2, and the fifth line segment e is electrically connected to the output terminal 4.

[0218] In addition, the arrangement order of the fan-out traces 2 electrically connected to the first line segment a, the arrangement order of the first line segment a, the arrangement order of the fifth line segment e, and the arrangement order of the output terminals 4 electrically connected to the fifth line segment e are all the same, thereby ensuring that each fan-out trace 2 is electrically connected to the output terminal 4 corresponding to the signal, thereby avoiding the problem of signal confusion.

[0219] In actual applications, since some fan-out traces 2 are electrically connected to the output terminal 4 of the driver chip after being wound from the binding area B through the airfoil trace 3, there is available space F1 in the fan-out area F between the fan-out traces 2 electrically connected to the airfoil trace 3 and the fan-out traces 2 not electrically connected to the airfoil trace 3. Therefore, the airfoil trace 3 is extended from the binding area B to the area marked F1 in Figure 18, and then passes through the area where the first side 101 of the driver chip is located, and is electrically connected to the output terminal 4. In this way, more fan-out traces 2 can be arranged to be electrically connected to the output terminal 4 by winding the airfoil trace 3, thereby reducing the design space of the fan-out area F and the binding area B.

[0220] In some embodiments of the present application, referring to FIG3 and FIG8 , each airfoil trace 3 includes a first airfoil trace 31 and a second airfoil trace 32 , and the first airfoil trace 31 and the second airfoil trace 32 are located in different layers.

[0221] Exemplarily, when the material of the first wing-shaped trace 31 is the same as the material of the source / drain metal layer (SD) in the display area AA, the first wing-shaped trace 31 can be manufactured on the same layer as the source / drain metal layer (SD) in the display area AA; when the material of the second wing-shaped trace 32 is the same as the material of the gate (Gate) in the display area AA, the second wing-shaped trace 32 can be manufactured on the same layer as the gate (Gate) in the display area AA.

[0222] Alternatively, when the material of the first wing-shaped trace 31 is the same as the material of the gate (Gate) in the display area AA, the first wing-shaped trace 31 can be manufactured on the same layer as the gate (Gate) in the display area AA; when the material of the second wing-shaped trace 32 is the same as the material of the source / drain metal layer (SD) in the display area AA, the second wing-shaped trace 32 can be manufactured on the same layer as the source / drain metal layer (SD) in the display area AA.

[0223] The first wing-shaped trace 31 extends along a first direction AF, and the second wing-shaped trace 32 includes a first line segment 321 extending along a second direction FA. The first wing-shaped trace 31 is electrically connected to the fan-out trace 2 and the first line segment 321, respectively. The first direction AF is the direction from the display area AA to the binding area B, and the second direction FA is parallel to the first direction AF.

[0224] The orthographic projection of the first line segment 321 on the substrate of the display panel overlaps with the orthographic projection of the first wing-shaped trace 31 electrically connected thereto on the substrate.

[0225] In an exemplary embodiment, when the line width of the first line segment 321 is less than or equal to the line width of the first wing-shaped trace 31 , the orthographic projection of the first line segment 321 on the substrate of the display panel is located within the orthographic projection of the first wing-shaped trace 31 electrically connected thereto on the substrate.

[0226] In an embodiment of the present application, as shown in reference Figure 3, since part of the fan-out routing 2 in the fan-out area F is electrically connected to the output terminal 4 of the driving chip by winding the wing-shaped routing 3, compared with the length d3 of the partial segment of the fan-out routing 2 located in the fan-out area F that is not electrically connected to the wing-shaped routing 3, the length d4 of the partial segment of the fan-out routing 2 located in the fan-out area F that is electrically connected to the wing-shaped routing 3 is greatly shortened, so that the resistance of the fan-out routing 2 that is not electrically connected to the wing-shaped routing 3 is much greater than the resistance of the fan-out routing 2 electrically connected to the wing-shaped routing 3, resulting in reduced resistance matching of the routing in the display panel and unstable signal transmission.

[0227] In an embodiment of the present application, by setting the first line segment 321, the orthographic projection of the first line segment 321 on the substrate of the display panel and the orthographic projection of the first wing-shaped trace 31 electrically connected thereto on the substrate overlap, thereby extending the distance between the fan-out trace 2 electrically connected to the wing-shaped trace 3 and the output terminal 4, thereby offsetting the shortened length of the fan-out trace 2 electrically connected to the wing-shaped trace 3 to a certain extent, improving the resistance matching between different traces, and thereby improving the stability of signal transmission.

[0228] In some embodiments of the present application, as shown in FIG8 , the second airfoil trace 32 further includes a second line segment 322 and a third line segment 323 . The second line segment 322 extends along a third direction MN. The first line segment 321 , the second line segment 322 , and the third line segment 323 are sequentially connected. The third line segment 323 is electrically connected to the output terminal 4 . The third direction MN intersects the first direction AF.

[0229] In the third direction MN, the arrangement order of the first airfoil traces 31 , the first line segments 321 and the third line segments 323 is the same.

[0230] Specifically, referring to Figure 8, the first first airfoil alignment 31, the second first airfoil alignment 31, the third first airfoil alignment 31, the fourth first airfoil alignment 31 and the fifth first airfoil alignment 31 are arranged in sequence along the third direction MN; the first first line segment 321, the second first line segment 321, the third first line segment 321, the fourth first line segment 321 and the fifth first line segment 321 are arranged in sequence along the third direction MN; the first third line segment 323, the second third line segment 323, the third third line segment 323, the fourth third line segment 323 and the fifth third line segment 323 are arranged in sequence along the third direction MN.

[0231] In an exemplary embodiment, the angle formed by the intersection of the third direction and the first direction may be a right angle, or the angle formed by the intersection of the third direction and the first direction may be an obtuse angle. It should be noted that the third direction MN marked in the drawings provided in the embodiments of the present application is drawn based on the example that the angle formed by the intersection of the third direction MN and the first direction AF is a right angle.

[0232] In an embodiment of the present application, a jumper design is adopted to achieve adjustment of the sequence between the wing-shaped routing 3 and the output terminal 4, so that the fan-out routing 2 is electrically connected to its corresponding output terminal 4, and there is no need for the driver chip to adjust the output signal sequence in each output terminal 4.

[0233] It should be noted that when the wing-shaped trace 3 is wound from the second side 102 of the driver chip, the jumper design shown in Figure 8 can also be used. Figure 8 only takes the wing-shaped trace 3 wound from the left side (third side) of the driver chip as an example.

[0234] In some embodiments of the present application, as shown in FIG8 , the angle between the extension line of the first line segment 321 and the extension line of the second line segment 322 is a right angle, and the angle between the extension line of the second line segment 322 and the extension line of the third line segment 323 is a right angle;

[0235] Alternatively, as shown in FIG33 , the angle between the extension line of the first line segment 321 and the extension line of the second line segment 322 is an obtuse angle, the angle between the extension line of the second line segment 322 and the extension line of the third line segment 323 is an obtuse angle, and the two obtuse angles are the same;

[0236] Alternatively, one of the angle between the extended line of the first line segment and the extended line of the second line segment and the angle between the extended line of the second line segment and the extended line of the third line segment is a right angle, and the other is an obtuse angle.

[0237] In an exemplary embodiment, because the orthographic projection of the first line segment 321 of the second airfoil trace 32 on the substrate partially overlaps the orthographic projection of the first airfoil trace to which it is connected, the first line segment 321 can extend the distance between the fan-out trace 2 electrically connected to the airfoil trace 3 and the output terminal 4, thereby offsetting the shortened length of the fan-out trace 2 electrically connected to the airfoil trace 3 to a certain extent, improving the resistance matching between different traces and thus improving the stability of signal transmission. In actual applications, the lengths of the traces to be offset vary. The actual length of the second line segment 322 can be controlled according to actual product requirements by setting the first line segment 321 and the second line segment 322 perpendicular, or setting the angle between the first line segment 321 and the second line segment 322 to an obtuse angle, thereby improving the resistance matching between the traces. In addition, in order to optimize the arrangement of the traces in the binding area B of different display products and improve space utilization, the angle between the first line segment 321 and the second line segment 322 can also be adjusted.

[0238] In an exemplary embodiment, as shown in FIG34 , each airfoil trace 3 is provided on the same layer;

[0239] Among them, each of the wing-shaped routing lines 3 arranged on the same layer includes a first line segment a, a second line segment b, a third line segment c, a fourth line segment d and a fifth line segment e connected in sequence, wherein the first line segment a and the second line segment b are located in the binding area B, the third line segment c extends from the binding area B to the fan-out area F, and the fourth line segment d and the fifth line segment e are located in the fan-out area F; the first line segment a is electrically connected to the fan-out routing line 2, the fifth line segment e is electrically connected to the output terminal 4, and the angle between the extension line of the second line segment b and the extension line of the third line segment c is a right angle, and the angle between the extension line of the third line segment c and the extension line of the fourth line segment d is a right angle; or, the angle between the extension line of the second line segment b and the extension line of the third line segment c is an obtuse angle, and the angle between the extension line of the third line segment c and the extension line of the fourth line segment d is an obtuse angle, and the angles of the two obtuse angles are the same.

[0240] There is no limitation on the specific angle of the obtuse angle, which can be determined according to actual conditions.

[0241] In an exemplary embodiment, each touch fan-out trace 22 extends from the fan-out area F to the area where the first side 101 is located, and is electrically connected to the receiving terminal 41, and the receiving terminal 41 is electrically connected to the output terminal 4; part of the display fan-out trace 21 is electrically connected to the receiving terminal 41 through the wing trace 3, and the wing trace 3 passes through the area on both sides of the driver chip (the third side 103). The display fan-out trace 21 electrically connected to the receiving terminal 41 through the wing trace 3 can be divided into three parts. Among them, the first part of the display fan-out trace 21 is electrically connected to the receiving terminal 41 through the wing trace 3, and the wing trace 3 passes through the area where the first side 101 is located. As shown in Figure 35, the wing trace 3 passing through the area where the first side 101 is located can be divided into three sections, wherein the angle between the first section and the second section is equal to the angle between the second section and the third section.

[0242] In some embodiments of the present application, as shown in FIG8 and FIG36 , the second airfoil trace 32 includes a first line segment 321 , a second line segment 322 , and a third line segment 323 that are sequentially connected;

[0243] A first corner G is provided between the first line segment 321 and the second line segment 322 , and a second corner (not drawn in FIG36 ) is provided between the second line segment 322 and the third line segment 323 .

[0244] At least a portion of each corner (including the first corner and the second corner) is rounded.

[0245] It should be noted that Figure 36 is a local enlarged view of the area where the first line segment 321 and the second line segment 322 in Figure 8 are located. Figure 36 provides a structural schematic diagram of the first corner. The structure of the second corner is similar to that of the first corner and will not be repeated here.

[0246] In an exemplary embodiment, at least part of each corner is rounded meaning that: part of each first corner is rounded; or, all first corners are rounded; or, part of each second corner is rounded; or, all second corners are rounded; or, both first and second corners are rounded.

[0247] Of course, parts of each corner may also be right angles, which can be determined according to actual conditions.

[0248] In some embodiments of the present application, as shown in FIG36 , at least one island-shaped graphic D is provided between two adjacent first corners G, and the island-shaped graphics D between the two adjacent first corners G are not connected to each other;

[0249] And / or, at least one island-shaped figure is provided between two adjacent second corners, and the island-shaped figures between two adjacent second corners are not connected to each other.

[0250] In an exemplary embodiment, an island pattern means that the pattern is independent and not connected to any other surrounding structures. In practical applications, because the island pattern is fabricated using the same material and layer as the source and drain metal layers, or the same material and layer as the gate layer, the island pattern can be conductive but is not electrically connected to any other traces or signal lines.

[0251] In an exemplary embodiment, at least one island-shaped figure is provided between two adjacent first corners, and the island-shaped figures between the two adjacent first corners are not connected to each other; or, at least one island-shaped figure is provided between two adjacent second corners, and the island-shaped figures between the two adjacent second corners are not connected to each other; or, at least one island-shaped figure is provided between two adjacent first corners, and the island-shaped figures between the two adjacent first corners are not connected to each other, and at least one island-shaped figure is provided between two adjacent second corners, and the island-shaped figures between the two adjacent second corners are not connected to each other.

[0252] There is no limit on the number of island-shaped graphics D between two adjacent first corners.

[0253] For example, the number of island-shaped graphics D between two adjacent first corners is not exactly the same, or the number of island-shaped graphics D between two adjacent first corners is exactly the same. FIG. 36 illustrates an example where the number of island-shaped graphics D between two adjacent first corners is not exactly the same. It should be noted that the meaning of the number of island-shaped graphics D between two adjacent first corners being not exactly the same is: for some first corners, the number of island-shaped graphics D between the two adjacent first corners is the same; for other first corners, the number of island-shaped graphics D between the two adjacent first corners is different.

[0254] There is no limit on the number of island-shaped graphics D between two adjacent second corners. For example, the number of island-shaped graphics D between two adjacent first corners is not exactly the same, or the number of island-shaped graphics D between two adjacent first corners is exactly the same.

[0255] In addition, the number of island-shaped graphics D between two adjacent first corners may be the same as the number of island-shaped graphics D between two adjacent second corners, or the number of island-shaped graphics D between two adjacent first corners may be different from the number of island-shaped graphics D between two adjacent second corners.

[0256] The specific shape and size of the island-shaped figure D between two adjacent first corners are not limited here. The specific shape and size of the island-shaped figure D between two adjacent second corners are not limited here.

[0257] In practical applications, in order to simplify the design, the shape of the island-shaped figure D between two adjacent first corners may be set to be the same as the shape of the island-shaped figure D between two adjacent second corners.

[0258] Exemplarily, the projection shape of the island-shaped figure D between two adjacent first corners on the substrate is an arc, a polygon, or a shape formed by a combination of an arc and a polygon.

[0259] The arc shape may include a sector, a semicircle, a semi-ellipse, a circle and an ellipse, and the polygon shape may include a triangle, a quadrilateral, a pentagon or a hexagon.

[0260] Exemplarily, the projection shape of the island-shaped figure D between two adjacent second corners on the substrate is the same as the projection shape of the island-shaped figure D between two adjacent first corners on the substrate.

[0261] In an exemplary embodiment, as shown in reference Figure 36, the island figure D between two adjacent first corners can be set on the same layer as the second airfoil routing 32 (including the first line segment 321, the second line segment 322 and the third line segment 323), and the second airfoil routing 32 and the first airfoil routing 31 are located on different layers.

[0262] In an exemplary embodiment, the island pattern may be located in the same layer as the gate layer; or the island pattern may be located in the same layer as the source / drain metal layer. The specific configuration may be determined based on the data and is not limited here.

[0263] In practical applications, the island-shaped pattern D and the second airfoil trace 32 may be disconnected.

[0264] In an exemplary embodiment, referring to FIG. 36 , each island-shaped pattern D between two adjacent first corners does not completely overlap with the first wing-shaped trace 31 in a direction perpendicular to the substrate.

[0265] For example, as shown in FIG36 , the orthographic projection of the first line segment 321 on the substrate is within the orthographic projection of the first airfoil trace 31 on the substrate. In this case, the orthographic projection of at least a portion of the island-shaped pattern D between two adjacent first corners on the substrate may partially overlap with the orthographic projection of the first airfoil trace 31 on the substrate.

[0266] Exemplarily, the orthographic projection of the first line segment 321 on the substrate overlaps with the orthographic projection of the first airfoil trace 31 on the substrate. In this case, the orthographic projection of at least a portion of the island-shaped figure D between two adjacent first corners on the substrate and the orthographic projection of the first airfoil trace 31 on the substrate do not overlap.

[0267] In practical applications, by setting an island-shaped pattern between adjacent first corners and / or setting an island-shaped pattern between adjacent second corners, the stability of the manufacturing process can be improved and the line width uniformity of the routing near the first corner and the second corner can be improved.

[0268] In some embodiments of the present application, as shown in FIG9 , part of the second airfoil traces 32 are located on the same layer, another part of the second airfoil traces 32 are located on the same layer, and the two parts of the second airfoil traces 32 are located on different layers.

[0269] Exemplarily, as shown in reference Figure 9, in the third direction MN, every two first line segments 321 are divided into a group, and each group of first line segment routing groups (G1, G2, G3, G4 or G5) includes an outer first line segment W and an inner first line segment N arranged along the third direction MN; wherein, for each group of first line segment routing groups, the orthographic projection of the second line segment 322 electrically connected to the outer first line segment W and the orthographic projection of the second line segment 322 electrically connected to the inner first line segment N on the substrate overlap.

[0270] In an exemplary embodiment, the airfoil traces 3 are respectively arranged on three conductive film layers. Specifically, as shown in FIG9 , the first airfoil trace 31 and the second airfoil trace 32 are located in different layers, and the second airfoil traces 32 corresponding to the outer first line segment W and the inner first line segment N in each group of first line segment traces are located in different layers.

[0271] In an exemplary embodiment, when using vias to connect traces on different layers, it is necessary to balance the contact resistance between the overlapping metal and the design space occupied. A greater number of vias reduces the contact resistance between the two overlapping metal layers, but increases the space occupied. Considering both resistance and space requirements, two overlapping vias are typically used, resulting in a contact resistance of approximately 1.5Ω.

[0272] Exemplarily, the first wing-shaped routing 31 uses the same material as the gate (Gate) in the display area AA, that is, the first wing-shaped routing 31 and the gate layer are arranged on the same layer; a portion of the second wing-shaped routing 32 uses the same material as the source and drain metal layer (SD) in the display area AA, and another portion of the second wing-shaped routing 32 uses the same material as the shading layer (LS) in the display area AA, that is, a portion of the second wing-shaped routing 32 and the source and drain metal layer are arranged on the same layer, and another portion of the second wing-shaped routing 32 and the shading layer are arranged on the same layer.

[0273] In an exemplary embodiment, a single-layer structure of molybdenum (Mo), a stacked structure of molybdenum / aluminum / molybdenum (Mo / Al / Mo), a stacked structure of titanium / aluminum / titanium (Ti / Al / Ti), a double-layer structure of molybdenum niobium / copper (MoNb / Cu), a double-layer structure of molybdenum niobium titanium / copper (MoNiTi / Cu), or a double-layer structure of titanium / copper (Ti / Cu) can be provided as the gate layer.

[0274] In an exemplary embodiment, the thickness of the gate layer in the direction perpendicular to the substrate may range from For example, the thickness of each sublayer of the molybdenum / aluminum / molybdenum (Mo / Al / Mo) laminated structure is 200A / 3000A / 200A; the thickness of each sublayer of the titanium / aluminum / titanium (Ti / Al / Ti) laminated structure is 150 / 4000 / 200A; the thickness of the two sublayers of the molybdenum-niobium-titanium / copper (MoNiTi / Cu) double-layer structure is 200A / 4000A.

[0275] In an exemplary embodiment, any one of a single-layer structure of molybdenum (Mo), a stacked structure of molybdenum / aluminum / molybdenum (Mo / Al / Mo), a stacked structure of titanium / aluminum / titanium (Ti / Al / Ti), a double-layer structure of molybdenum niobium / copper (MoNb / Cu), a double-layer structure of molybdenum niobium titanium / copper (MoNiTi / Cu), or a double-layer structure of titanium / copper (Ti / Cu) can be provided as the source / drain metal layer (SD). The thickness of the source / drain metal layer (SD) in the direction perpendicular to the substrate can range from 100 to 200 Å.

[0276] In an exemplary embodiment, the light shielding layer can be made of a double-layer aluminum / molybdenum metal layer (Al / Mo), a single-layer molybdenum metal layer (Mo), a single-layer molybdenum-niobium metal layer (MoNb), or a single-layer titanium metal layer, and its thickness ranges from

[0277] It should be noted that when the wing-shaped trace 3 is wound from the right side (another third side 103) and the bottom side (the second side 102) of the driver chip, the orthographic projection of the second line segment 322 electrically connected to the outer first line segment W on the substrate and the orthographic projection of the second line segment 322 electrically connected to the inner first line segment N on the substrate can also be set to overlap. The drawings of this application only illustrate the case where the wing-shaped trace 3 is wound from the left side of the driver chip as an example.

[0278] In an embodiment of the present application, for each first line segment routing group, by arranging the orthographic projection of the second line segment 322 electrically connected to the outer first line segment W and the orthographic projection of the second line segment 322 electrically connected to the inner first line segment N on the substrate to overlap, the height H of the area occupied by each second wing-shaped routing line 32 along the first direction AF can be greatly reduced, thereby greatly increasing the design space. In actual applications, the line width of the second wing-shaped routing line 32 and the distance between two adjacent second wing-shaped routing lines 32 can greatly reduce the resistance of the second wing-shaped routing line 32 itself, thereby achieving high-frequency charging of each pixel unit in the display area AA, improving the charging rate of the display panel, shortening the charging time, and reducing the power consumption of the display panel.

[0279] In addition, because the height H of the area occupied by the second airfoil trace 32 along the first direction AF is relatively small, more fan-out traces 2 can be provided to be electrically connected to the output terminal 4 by means of the airfoil trace 3 winding, thereby shortening the length of each fan-out trace 2 electrically connected to the airfoil trace 3, thereby further reducing the space occupied by the fan-out trace 2 in the fan-out area B. Furthermore, as the number of fan-out traces 2 electrically connected to the output terminal 4 by means of the airfoil trace 3 winding increases, the size of the fan-out area F along the display area AA in the direction pointing to the fan-out area F can be further reduced, which is more conducive to the preparation of a display panel with a narrow bezel.

[0280] In some embodiments of the present application, referring to FIG3 or FIG6 , the display panel includes a test unit CT and a plurality of test connection traces 6 ;

[0281] The test unit CT is located on a side of the area where the output terminals 4 are located away from the display area AA; the test connection line 6 is configured to connect the test unit CT and the output terminals 4;

[0282] The output terminal 4 of the electrically connected wing-shaped trace 3 and the test connection trace 6 are directly electrically connected.

[0283] Exemplarily, the test unit CT includes at least one of a display test unit Data CT and a touch test unit VCOM CT. Specifically, the test unit CT may include the display test unit Data CT; or the test unit CT may include the touch test unit VCOM CT; or the test unit CT may include both the display test unit Data CT and the touch test unit VCOM CT.

[0284] In some embodiments of the present application, for some output terminals 4, they are connected to both an airfoil trace 3 and a test connection trace 6, and the orthographic projection of the airfoil trace 3 electrically connected to the same output terminal 4 on the substrate and the orthographic projection of the test connection trace 6 on the substrate partially overlap.

[0285] In this way, the test connection trace 6 and the wing-shaped trace 3 can be arranged on different layers, thereby saving design space between the area where the output terminal 4 is located and the area where the test unit CT is located.

[0286] In some embodiments of the present application, as shown in FIG10 , the display panel includes a test unit CT, which is divided into a display test unit Data CT and a touch test unit VCOM CT. At least one of the display test unit Data CT and the touch test unit VCOM CT is located on a side of the display area AA away from the fan-out area F, and the remaining one is located in the fan-out area F or the bonding area B.

[0287] For example, the display test unit Data CT and the touch test unit VCOM CT may both be disposed on a side of the display area AA away from the fan-out area F.

[0288] For example, one of the display test unit Data CT and the touch test unit VCOM CT may be arranged at a side of the display area AA away from the fan-out area F, and the other may be arranged in the fan-out area F or the bonding area B.

[0289] Specifically, referring to FIG10 , when the display test unit Data CT or the touch test unit VCOM CT is located in the fan-out area F, the display test unit Data CT or the touch test unit VCOM CT may be located in the area between the driver chip IC and the MUX circuit. It should be noted that the MUX circuit is used to electrically connect the signal line in the display area AA with the fan-out trace 2 in the fan-out area F. For specific details related to the MUX circuit, reference may be made to the relevant art and will not be repeated here.

[0290] When the display test unit Data CT or the touch test unit VCOM CT is located in the binding area B, the display test unit Data CT or the touch test unit VCOM CT can be located in the area where the driver chip IC is located, and the orthographic projection of the test unit on the substrate overlaps with the orthographic projection of the driver chip IC on the substrate; alternatively, the display test unit Data CT or the touch test unit VCOM CT can be located in any area of ​​the binding area B except the area where the driver chip IC is located.

[0291] 10 is illustrated by taking the example that the display test unit Data CT is located in the fan-out region F and the touch test unit VCOM CT is located in the display area AA at a side away from the fan-out region F.

[0292] In the embodiment of the present application, by arranging at least one of the display test unit Data CT and the touch test unit VCOM CT to be located on a side of the display area AA away from the fan-out area F, the design space of the binding area B or the fan-out area F can be largely freed up, thereby providing space for increasing the line width of the wiring in the binding area B or the fan-out area F and increasing the distance between two adjacent wirings, thereby reducing the resistance of the wiring itself, which is conducive to achieving high-frequency charging of the display panel, improving charging efficiency, shortening charging time, and reducing power consumption.

[0293] In some embodiments of the present application, the area on the side of the display area AA away from the fan-out area F includes a central area and two corner areas R located on both sides of the central area; the display test unit Data CT and the touch test unit VCOM CT each include a plurality of test sub-units T, and the projection shape of the test sub-units T on the substrate is rectangular;

[0294] Among them, each test sub-unit T in the corner area R is arranged around the edge of the display area AA; as shown in Figure 11, the long sides of each rectangle in the corner area R are parallel; or, as shown in Figure 12, there is an angle of a preset angle between the long sides of each two adjacent rectangles in the corner area R.

[0295] Exemplarily, the preset angle may be an acute angle.

[0296] Exemplarily, the angles between the long sides of every two adjacent rectangles are the same.

[0297] Exemplarily, the test subunit T may be a test pad (PAD); or, the test subunit T may be a switching transistor (STFT); or, some of the test subunits T may be test pads, and another part of the test subunits T may be switching transistors.

[0298] It should be noted that the projection shape of the above-mentioned test sub-unit T on the substrate is a rectangle, where the rectangle can be understood as a standard rectangle; or, it can also be a rounded rectangle.

[0299] In the embodiment of the present application, by setting the long sides of the projections of the test sub-units T in the corner region R on the substrate to be parallel, the design difficulty and the manufacturing difficulty can be reduced, and the cost can be reduced.

[0300] In some embodiments of the present application, as shown in FIG6 and FIG13 , the display panel includes a plurality of first signal conditioning lines 11 , and the first signal conditioning lines 11 are located between the fan-out traces 2 and the wing traces 3 ;

[0301] Among them, in the third direction MN, the arrangement order of each fan-out routing 2 is different from the arrangement order of each wing-shaped routing 3; the arrangement order of one end END1 of each first signal adjustment line 11 connected to the fan-out routing 2 is the same as the arrangement order of each fan-out routing 2, and the arrangement order of one end END2 of each first signal adjustment line 11 connected to the wing-shaped routing 3 is the same as the arrangement order of each wing-shaped routing 3; the third direction MN intersects with the first direction AF.

[0302] In actual applications, for the fan-out routing 2 electrically connected to the wing-shaped routing 3, the arrangement order of the multiple fan-out routings 2 electrically connected to the wing-shaped routing 3 located in the fan-out area F is inconsistent with the arrangement order of the multiple wing-shaped routings 3 located in the binding area B. In order to avoid signal transmission confusion caused by inconsistent routing position, a first signal adjustment line 11 is set between the fan-out routing 2 and the wing-shaped routing 3. Through the jumper design of the first signal adjustment line 11, the fan-out routing 2 is electrically connected to the wing-shaped routing 3 consistent with the signal to be transmitted.

[0303] When the display panel is a display panel using TDDI technology, since part of the fan-out routing 2 is a display fan-out routing and part of the fan-out routing 2 is a touch fan-out routing, the arrangement order of the fan-out routing 2 electrically connected to the wing routing 3 in the fan-out area F and the arrangement order of the wing routing 3 in the binding area B are more obviously disordered. In order to make the order of the signals transmitted by the fan-out routing 2 and the wing routing 3 with inconsistent position orders consistent, a plurality of first signal adjustment lines 11 are set to make the fan-out routing 2 electrically connected to the wing routing 3 that is consistent with the signal to be transmitted.

[0304] Specifically, referring to FIG13 , the arrangement order of the plurality of fan-out traces 2 electrically connected to the wing trace 3 is: the second fan-out trace 2, the third fan-out trace 2, the first fan-out trace 2, the fifth fan-out trace 2, the sixth fan-out trace 2, the fourth fan-out trace 2, the ninth fan-out trace 2… The arrangement order of one end of the wing trace 3 electrically connected to the fan-out trace 2 is: the first wing trace 3, the second wing trace 3, the third wing trace 3… Obviously, The position arrangement order of the fan-out trace 2 and the airfoil trace 3 is inconsistent. By setting a first signal adjustment line 11 between the two, the arrangement order of the end END1 of the first signal adjustment line 11 electrically connected to the fan-out trace 2 is the same as the arrangement order of the fan-out trace 2, and the arrangement order of the end END2 of the first signal adjustment line 11 connected to the airfoil trace 3 is the same as the arrangement order of the airfoil trace 3, thereby achieving an inconsistent arrangement order of the trace positions but a consistent order of the signals to be transmitted. It should be noted that the airfoil trace 3 and the fan-out trace 2 are not drawn in Figure 13. Only the digital marks indicating the arrangement order of the airfoil trace 3 and the fan-out trace 2 are marked at both ends of the first signal adjustment line 11.

[0305] In some embodiments of the present application, as shown in FIG6 and FIG13 , for each fan-out trace 2 electrically connected to the output terminal 4 through the area where the first side 101 is located, a second signal conditioning line 12 is further provided between the fan-out trace 2 and the output terminal 4;

[0306] Among them, in the third direction MN, the arrangement order of each fan-out trace 2 is different from the arrangement order of each output terminal 4; the arrangement order of one end END1 of each second signal adjustment line 12 connected to the fan-out trace 2 is the same as the arrangement order of each fan-out trace 2, and the arrangement order of one end END2 of each second signal adjustment line 12 connected to the output terminal 4 is the same as the arrangement order of each output terminal 4; the third direction MN intersects with the first direction AF.

[0307] In actual applications, for the fan-out routing 2 electrically connected to the output terminal 4 (the part of the fan-out routing 2 that is not electrically connected to the wing-shaped routing 3), the arrangement order of the fan-out routing 2 electrically connected to the output terminal 4 located in the fan-out area F is inconsistent with the arrangement order of the output terminal 4 located in the binding area B. In order to avoid signal transmission confusion caused by inconsistent setting positions of the routing and the output terminal 4, multiple second signal adjustment lines 12 are set between the fan-out routing 2 and the output terminal 4. Through the jumper design of the multiple second signal adjustment lines 12, the fan-out routing 2 is electrically connected to the output terminal 4 consistent with the signal to be transmitted.

[0308] Specifically, referring to Figure 13, the arrangement order of the multiple fan-out traces 2 electrically connected to the output terminal 4 is: the second fan-out trace 2, the third fan-out trace 2, the first fan-out trace 2, the fifth fan-out trace 2, the sixth fan-out trace 2, the fourth fan-out trace 2, the ninth fan-out trace 2... The arrangement order of the output terminals 4 is: the first output terminal 4, the second output terminal 4, the third output terminal 4... Obviously, the position arrangement order of the fan-out traces 2 and the output terminals 4 is inconsistent. By setting the second signal adjustment line 12 between the two, the arrangement order of the end END1 of the second signal adjustment line 12 electrically connected to the fan-out trace 2 is the same as the arrangement order of the fan-out trace 2, and the arrangement order of the end END2 of the second signal adjustment line 12 connected to the output terminal 4 is the same as the arrangement order of the output terminals 4, thereby achieving the position order of the fan-out traces 2 and the output terminals 4 being inconsistent, but the order of the signals to be transmitted is consistent. It should be noted that the output terminal 4 and the fan-out trace 2 are not drawn in FIG. 13 , and only numbers indicating the arrangement order of the output terminal 4 and the fan-out trace 2 are marked at both ends of the second signal conditioning line 12 .

[0309] In some embodiments of the present application, referring to FIG. 14 , at least a portion of each first airfoil profile trace 31 is a serpentine structure.

[0310] The meaning of at least part of the line segment is: for each first airfoil profile line 31, part of the line segment of the first airfoil profile line 31 may be a serpentine structure; or the entire first airfoil profile line 31 may be a serpentine structure.

[0311] In an exemplary embodiment, the serpentine structure may be formed by connecting a plurality of curved line segments; or, the serpentine structure may be formed by connecting a plurality of broken line segments.

[0312] In an embodiment of the present application, as shown in reference Figure 3, since part of the fan-out routing 2 in the fan-out area F is electrically connected to the output terminal 4 of the driving chip by winding the wing-shaped routing 3, compared with the length d3 of the partial line segment of the fan-out routing 2 located in the fan-out area F that is not electrically connected to the wing-shaped routing 3, the length d4 of the partial line segment of the fan-out routing 2 electrically connected to the wing-shaped routing 3 located in the fan-out area F is greatly shortened, so that the resistance of the fan-out routing 2 that is not electrically connected to the wing-shaped routing 3 is much greater than the resistance of the fan-out routing 2 electrically connected to the wing-shaped routing 3, resulting in reduced resistance matching of the routing in the display panel, unstable signal transmission, and even uneven brightness of the display panel.

[0313] In an embodiment of the present application, by setting at least part of the line segments of each first wing-shaped trace 31 to a serpentine structure, the distance between the fan-out trace 2 electrically connected to the wing-shaped trace 3 and the output terminal 4 is extended, thereby offsetting the shortened length of the fan-out trace 2 electrically connected to the wing-shaped trace 3 to a certain extent, improving the resistance matching between different traces, thereby improving the stability of signal transmission and improving the brightness uniformity of the display panel.

[0314] It should be noted that FIG14 only illustrates a partial line segment of one of the first airfoil traces 31 as a serpentine structure as an example.

[0315] In some embodiments of the present application, a portion of the fan-out traces 2 is made of a first conductive material, and another portion of the fan-out traces 2 is made of a second conductive material, and the resistance of the first conductive material is greater than the resistance of the second conductive material;

[0316] A portion of each fan-out routing 2 made of the first conductive material is electrically connected to the first wing-shaped routing 3, and a portion of each fan-out routing 2 made of the second conductive material is electrically connected to the first wing-shaped routing 3; wherein, the first wing-shaped routing 3 electrically connected to the fan-out routing 2 made of the first conductive material is a serpentine structure.

[0317] In an exemplary embodiment, a portion of the fan-out wiring 2 and the source / drain metal layer in the display area AA are prepared in the same layer and are made of the same material, for example, both are made of aluminum (Al); another portion of the fan-out wiring 2 and the gate line in the display area AA are prepared in the same layer and are made of the same material, for example, both are made of molybdenum (Mo).

[0318] In practical applications, considering the resistance of the metal material itself and the influence of the line width and thickness on the resistance, the resistance of some fan-out lines 2 prepared on the same layer as the gate lines in the display area AA is relatively large.

[0319] Among them, some fan-out traces 2 fabricated on the same layer as the gate lines in display area AA include fan-out traces 2 electrically connected to output terminals 4 via wing-shaped traces 3; some fan-out traces 2 fabricated on the same layer as the source / drain metal layer in display area AA also include fan-out traces 2 electrically connected to output terminals 4 via wing-shaped traces 3. Because some fan-out traces 2 fabricated on the same layer as the gate lines in display area AA have a relatively high resistance, and the effect of trace length differences on resistance is compounded, the resistance difference between these fan-out traces 2 and other fan-out traces 2 is even greater. Therefore, at least some of the segments of the first wing-shaped traces 3 electrically connected to the high-resistance fan-out traces 2 are configured as a serpentine structure. This, on the one hand, improves the resistance matching between different traces, thereby improving the stability of signal transmission and the brightness uniformity of the display panel; on the other hand, it avoids the increased difficulty of the fabrication process caused by configuring at least some of the segments of all first wing-shaped traces 3 as a serpentine structure.

[0320] In some embodiments of the present application, referring to FIG. 16 and FIG. 19 , the driver chip IC further includes a plurality of input terminals 5 , each of which is arranged along the extension direction of the second side 102 ;

[0321] The orthographic projection of the wing-shaped trace 3 on the substrate of the display panel and the orthographic projection of the input terminal 5 on the substrate do not overlap with each other.

[0322] In an exemplary embodiment, the distances between each output terminal 4 and the second side 102 along the extending direction parallel to the third side 103 are not completely the same.

[0323] For example, in combination with Figures 4 and 16, the distance between each output terminal 4 on both sides of the driver chip and the output terminal 5 along the extension direction parallel to the third side 103 is greater than the distance between each output terminal 4 located in the middle position and the output terminal 5 along the extension direction parallel to the third side 103.

[0324] It should be noted that for the driver chip shown in Figure 16, due to the limited space between the area where the output terminal 4 is located and the area where the input terminal 5 is located, a wing-shaped trace 3 is usually arranged to pass through the area where the second side 102 of the driver chip is located, and then electrically connected to the output terminal 4.

[0325] In some embodiments of the present application, as shown in FIG3 and FIG17 , the fan-out trace 2 includes a first fan-out segment 201 and a second fan-out segment 202 connected to each other. The first fan-out segment 201 is electrically connected to the signal line of the display area AA, and the second fan-out segment 202 is electrically connected to the output terminal 4.

[0326] There is a preset angle between the second fan-out segment 202 and the edge of the display area AA close to the fan-out area F;

[0327] The sine value of the preset angle is equal to the ratio of the width d5 ​​of the area occupied by all the second fan-out segments 202 along the direction perpendicular to the extension direction thereof to half the width d6 of the display area AA along the direction parallel to the first side 101 .

[0328] In practical applications, the width d5 ​​of the area occupied by the second fan-out segment 202 along the direction perpendicular to its extension is equal to the number of second fan-out segments 202 * (the line width of the second fan-out segment 202 + the gap width between two adjacent second fan-out segments 202), that is, sina = d5 / d6, a = arcsin(d5 / d6).

[0329] In some embodiments of the present application, as shown in FIG3 , each fan-out trace 2 has a first inflection point and a second inflection point. The line connecting the first inflection points of all fan-out traces 2 is a first line segment L1. The line connecting the second inflection points of each fan-out trace 2 electrically connected to the airfoil trace 3 is a second line segment L2. The line connecting the second inflection points of each fan-out trace 2 not electrically connected to the airfoil trace 3 is a third line segment L3. The first line segment L1 is parallel to the second line segment L2, and the second line segment L2 is parallel to the third line segment L3. In this way, the regularity of each fan-out trace 2 in the fan-out region F can be improved, reducing the design difficulty and the difficulty of the display panel manufacturing process.

[0330] An embodiment of the present application provides a display device, including the above display panel.

[0331] The display device may be a touch display panel, as well as any product or component with a display function, such as a television, a digital camera, a mobile phone, a tablet computer, etc., which includes the touch display panel.

[0332] The display device provided by the embodiment of the present application is provided with multiple wing-shaped traces 3 in the binding area B. The wing-shaped traces 3 are wound around the binding area B (including the left and right sides and the bottom side of the driver chip), so that part of the fan-out traces 2 are electrically connected to the output terminal 4 of the driver chip through the wing-shaped traces 3, thereby utilizing the area in the binding area B where the driver chip is not provided, shortening the length of the fan-out trace 2 electrically connected by the wing-shaped trace 3, and greatly reducing the space occupied by the fan-out trace 2 in the fan-out area B. In actual applications, by increasing the line width of the fan-out trace 2 and the distance between two adjacent fan-out traces 2, the resistance of the fan-out trace 2 itself can be greatly reduced, thereby realizing high-frequency charging of each pixel unit in the display area AA, improving the charging rate of the display panel, shortening the charging time, and reducing the power consumption of the display panel.

[0333] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A display panel, wherein, comprising: a display area; a fan-out area located on one side of the display area; a bonding area located on the side of the fan-out area away from the display area; a driving chip is provided in the bonding area, and the driving chip includes a first side adjacent to the fan-out area, a second side opposite to the first side, and two third sides connecting the first side and the second side; the driving chip further includes a plurality of output terminals, and the output terminals are arranged close to the first side; the display panel includes: a plurality of fan-out traces located in the fan-out area; at least a plurality of wing-shaped traces located in the bonding area; wherein, some of the fan-out traces extend from the fan-out area to the area where the first side is located and are electrically connected to the output terminals; another part of the fan-out traces are electrically connected to the output terminals through the wing-shaped traces, and the wing-shaped traces pass through the area where at least one of the first side, the two third sides, and the second side is located.

2. The display panel according to claim 1, wherein, the wing-shaped traces pass through the area where the first side is located.

3. The display panel according to claim 1, wherein, the wing-shaped traces pass through the area where the second side is located.

4. The display panel according to claim 1, wherein, some of the wing-shaped traces pass through the area where the second side is located, and another part of the wing-shaped traces pass through the area where at least one of the two third sides is located.

5. The display panel according to claim 1, wherein, some of the wing-shaped traces pass through the area where the first side is located, and another part of the wing-shaped traces pass through the area where at least one of the two third sides is located.

6. The display panel according to claim 1, wherein, the display panel further includes a plurality of receiving terminals, and the receiving terminals are configured to be bonded together with the output terminals of the driving chip; the orthographic projection of the receiving terminals on the substrate of the display panel and the orthographic projection of the output terminals on the substrate overlap; some of the receiving terminals are electrically connected to the fan-out traces passing through the area where the first side is located, and another part of the receiving terminals are electrically connected to the wing-shaped traces; wherein, for the receiving terminals electrically connected to the wing-shaped traces, the orthographic projection of the wing-shaped traces on the substrate overlaps with the orthographic projection of at least one of the receiving terminals on the substrate.

7. The display panel according to claim 6, wherein, the receiving terminals electrically connected to the wing-shaped traces are divided into a first group arranged along the first side and a second group arranged along the second side; the wing-shaped traces electrically connected to the first group of receiving terminals are provided on the same layer, and the wing-shaped traces electrically connected to the second group of receiving terminals include a first wing-shaped trace and a second wing-shaped trace, and the first wing-shaped trace and the second wing-shaped trace are located on different layers; wherein, the wing-shaped traces electrically connected to the first group of receiving terminals and the second wing-shaped traces among the wing-shaped traces electrically connected to the second group of receiving terminals are provided on the same layer.

8. The display panel according to claim 7, wherein, the receiving terminals electrically connected by the airfoil traces include: a gate layer on the substrate, including two independent and oppositely arranged conductive pads; a dielectric layer covering the gate layer and exposing a partial area of the conductive pads; a source-drain metal layer covering the dielectric layer and directly contacting the partial area exposed by the conductive pads; an electrode layer covering the source-drain metal layer, configured to directly contact the output terminals of the driving chip.

9. The display panel according to claim 8, wherein, each of the second airfoil traces in the airfoil traces electrically connected to the first group of receiving terminals and the airfoil traces electrically connected to the second group of receiving terminals are located in the gate layer, and all pass through the area between the two conductive pads of the receiving terminals.

10. The display panel according to claim 9, wherein, for one of the receiving terminals in the first group of receiving terminals, one airfoil trace is electrically connected to its conductive pad, and the orthographic projections of the other airfoil traces electrically connected to the first group of receiving terminals on the substrate do not overlap with the orthographic projection of its conductive pad on the substrate; for one of the receiving terminals in the second group of receiving terminals, one second airfoil trace is electrically connected to its conductive pad, and the orthographic projections of the other second airfoil traces electrically connected to the second group of receiving terminals on the substrate do not overlap with the orthographic projection of its conductive pad on the substrate.

11. The display panel according to claim 9 or 10, wherein, the display panel further includes a plurality of spare receiving terminals, and the structures of the spare receiving terminals and the receiving terminals are the same; the spare receiving terminals arranged in the same row as the first group of receiving terminals are the first spare receiving terminals, and the spare receiving terminals arranged in the same row as the second group of receiving terminals are the second spare receiving terminals; wherein, at least part of the airfoil traces electrically connected to the first group of receiving terminals pass through the area between the two conductive pads in the first spare terminals, and at least part of the airfoil traces electrically connected to the second group of receiving terminals pass through the area between the two conductive pads in the second spare terminals.

12. The display panel according to any one of claims 1-10, wherein, the fan-out traces include display fan-out traces and touch fan-out traces; each of the touch fan-out traces extends from the fan-out area to the area where the first side is located and is electrically connected to the output terminals; part of the display fan-out traces are electrically connected to the output terminals through the airfoil traces.

13. The display panel according to any one of claims 1-10, wherein, the airfoil traces include display airfoil traces and touch airfoil traces; the fan-out traces include display fan-out traces and touch fan-out traces; part of the display fan-out traces are electrically connected to the output terminals through the display airfoil traces, and part of the touch fan-out traces are electrically connected to the output terminals through the touch airfoil traces.

14. The display panel according to any one of claims 2-5, Among them, each of the above-mentioned airfoil traces is arranged on the same layer.

15. The display panel according to any one of claims 2-5, Among them, some of the above-mentioned airfoil traces are arranged on the same layer, and the other part of the airfoil traces includes a first airfoil trace and a second airfoil trace, and the first airfoil trace and the second airfoil trace are located on different layers; Among them, each of the airfoil traces arranged on the same layer extends from the bonding area to the fan-out area, and includes a first line segment, a second line segment, a third line segment, a fourth line segment, and a fifth line segment connected in sequence. Among them, the first line segment and the second line segment are located in the bonding area, the third line segment extends from the bonding area to the fan-out area, and the fourth line segment and the fifth line segment are located in the fan-out area; the first line segment is electrically connected to the fan-out trace, and the fifth line segment is electrically connected to the output terminal.

16. The display panel according to any one of claims 2-5, Among them, the airfoil trace includes a first airfoil trace and a second airfoil trace, and the first airfoil trace and the second airfoil trace are located on different layers; the first airfoil trace extends along a first direction, and the second airfoil trace includes a first line segment extending along a second direction; the first airfoil trace is electrically connected to the fan-out trace and the first line segment respectively; the first direction is the direction from the display area to the bonding area, and the second direction is parallel to the first direction; Among them, the orthographic projection of the first line segment on the substrate of the display panel overlaps with the orthographic projection of the first airfoil trace electrically connected to it on the substrate.

17. The display panel according to claim 16, Among them, the second airfoil trace further includes a second line segment and a third line segment, the second line segment extends along a third direction, the first line segment, the second line segment, and the third line segment are connected in sequence, and the third line segment is electrically connected to the output terminal; the third direction intersects with the first direction; Among them, in the third direction, the arrangement order of each of the first airfoil traces, each of the first line segments, and each of the third line segments is the same.

18. The display panel according to claim 17, the included angle between the extension line of the first line segment and the extension line of the second line segment is a right angle, and the included angle between the extension line of the second line segment and the extension line of the third line segment is a right angle; Or, the included angle between the extension line of the first line segment and the extension line of the second line segment is an obtuse angle, and the included angle between the extension line of the second line segment and the extension line of the third line segment is an obtuse angle, and the two obtuse angles have the same angle; Or, one of the included angle between the extension line of the first line segment and the extension line of the second line segment and the included angle between the extension line of the second line segment and the extension line of the third line segment is a right angle, and the other is an obtuse angle.

19. The display panel according to claim 17, a first corner is provided between the first line segment and the second line segment, and a second corner is provided between the second line segment and the third line segment; At least part of each corner is a rounded corner.

20. The display panel according to claim 19, wherein at least one island-shaped pattern is provided between two adjacent first corners, and the island-shaped patterns between two adjacent first corners are not connected to each other; and / or, at least one island-shaped pattern is provided between two adjacent second corners, and the island-shaped patterns between two adjacent second corners are not connected to each other.

21. The display panel according to claim 17, wherein, part of the second airfoil traces is located on the same layer, and the other part of the second airfoil traces is located on the same layer, and the two parts of the second airfoil traces are located on different layers; In the third direction, every two of the first line segments are divided into a group, and each group of the first line segment trace groups includes an outer first line segment and an inner first line segment arranged along the third direction; wherein, for each group of the first line segment trace groups, the orthographic projection of the second line segment electrically connected to the outer first line segment on the substrate and the orthographic projection of the second line segment electrically connected to the inner first line segment on the substrate overlap.

22. The display panel according to claim 17, wherein, it includes a test unit and a plurality of test connection traces; The test unit is located on a side of the region where each of the output terminals is located away from the display area; the test connection traces are configured to connect the test unit and the output terminals; wherein, the output terminal electrically connected to the airfoil trace is also directly electrically connected to the test connection trace.

23. The display panel according to claim 22, wherein, the orthographic projection of the airfoil trace electrically connected to the same output terminal on the substrate and the orthographic projection of the test connection trace on the substrate partially overlap.

24. The display panel according to claim 17, wherein, it includes a test unit, and the test unit is divided into a display test unit and a touch test unit; At least one of the display test unit and the touch test unit is located on a side of the display area away from the fan-out area, and the remaining one is located in the fan-out area or the bonding area.

25. The display panel according to claim 24, wherein, the area on the side of the display area away from the fan-out area includes a central area and two corner areas on both sides of the central area; both the display test unit and the touch test unit include a plurality of test sub-units, and the projection shape of the test sub-units on the substrate is rectangular; wherein, each of the test sub-units in the corner area is arranged around the edge of the display area; the long sides of each of the rectangles in the corner area are parallel, or there is an included angle with a preset angle between the long sides of two adjacent rectangles in the corner area.

26. The display panel according to claim 16, wherein, it includes a plurality of first signal adjustment lines, and the first signal adjustment lines are located between the fan-out traces and the airfoil traces; Wherein, in the third direction, the arrangement order of each of the fan-out traces is different from the arrangement order of each of the airfoil traces; the arrangement order of one end of each of the first signal adjustment lines connected to the fan-out traces is the same as the arrangement order of each of the fan-out traces, and the arrangement order of one end of each of the first signal adjustment lines connected to the airfoil traces is the same as the arrangement order of each of the airfoil traces; the third direction intersects with the first direction.

27. The display panel according to claim 16, Wherein, including a plurality of second signal adjustment lines. For each of the fan-out traces electrically connected to the output terminal through the area where the first side is located, a second signal adjustment line is further provided between the fan-out trace and the output terminal; Wherein, in the third direction, the arrangement order of each of the fan-out traces is different from the arrangement order of each of the output terminals; the arrangement order of one end of each of the second signal adjustment lines connected to the fan-out traces is the same as the arrangement order of each of the fan-out traces, and the arrangement order of one end of each of the second signal adjustment lines connected to the output terminals is the same as the arrangement order of each of the output terminals; the third direction intersects with the first direction.

28. The display panel according to claim 16, Wherein, at least part of the line segments of each of the first airfoil traces is a serpentine structure.

29. The display panel according to claim 16, Wherein, the materials of some of the fan-out traces are a first conductive material, and the materials of the other part of the fan-out traces are a second conductive material, and the resistance of the first conductive material is greater than the resistance of the second conductive material; a part of each of the fan-out traces made of the first conductive material is electrically connected to the first airfoil trace, and a part of each of the fan-out traces made of the second conductive material is electrically connected to the first airfoil trace; Wherein, the first airfoil trace electrically connected to the fan-out trace made of the first conductive material is a serpentine structure.

30. The display panel according to claim 3 or 4, Wherein, the driving chip further includes a plurality of input terminals, and each of the input terminals is arranged along the extending direction of the second side; the orthographic projection of the airfoil trace on the substrate of the display panel and the orthographic projection of the input terminal on the substrate do not overlap each other.

31. The display panel according to claim 1, Wherein, the fan-out trace includes a connected first fan-out segment and a second fan-out segment. The first fan-out segment is electrically connected to the signal line in the display area, and the second fan-out segment is electrically connected to the output terminal; Wherein, there is a preset included angle between the second fan-out segment and the edge of the display area close to the fan-out area; The sine value of the preset included angle is equal to the ratio of the width of the area occupied by all the second fan-out segments in the direction perpendicular to their extending direction and half of the width of the display area in the direction parallel to the first side.

32. A display device, Wherein, including the display panel according to any one of claims 1-30

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