Array substrate and display device

Abstract

The utility model discloses an array substrate and display device to improve the different width of the blank area between the fanout area of different positions in prior art, cause the problem of nonuniformity of metal lead line width when patterning. The array substrate includes: a plurality of first metal tracks extending along a first direction, a plurality of first metal leads, and a plurality of first metal pattern blocks: at least one first metal pattern block is located at the gap between two adjacent first metal leads, the second pattern part is located on the side of the first pattern part away from the display area, and the maximum width of the first pattern part in the second direction is different from the maximum width of the second pattern part in the second direction, and the second direction is perpendicular to the first direction.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor technology, and in particular to an array substrate and a display device. Background Technology

[0002] The display principle of liquid crystal displays (LCDs) involves a driver integrated circuit (IC) providing source-level voltage signals to the pixel units in the display area via metal wires in the non-display area. Therefore, the linewidth of the metal wires in the non-display area affects the voltage signal input. In existing array substrates, the wire lengths on both sides of the fanout area are greater than those in the middle, resulting in higher impedances for the wires on both sides and varying resistances among the wires. Currently, this difference can be adjusted by changing the fanout wiring width or by compensating for the IC's internal resistance.

[0003] However, existing products have metal wire routing designs in non-display fanout areas with varying gap sizes (space areas), resulting in differences in the uniformity of metal trace width. This impedance difference cannot be directly calculated and compensated. Utility Model Content

[0004] This invention provides an array substrate and a display device to improve the problem in the prior art where the width of the blank area between metal leads at different positions in the fanout area is different, causing uneven metal lead line width during patterning.

[0005] This utility model embodiment provides an array substrate having a display area and at least one fan-shaped trace area located around the display area; the array substrate includes: multiple first metal traces extending along a first direction, multiple first metal leads, and multiple first metal pattern blocks:

[0006] Wherein, the first metal trace is located in the display area; the first metal lead is located in the fan-shaped trace area and is electrically connected to the first metal trace; at least one first metal pattern block is located in the gap between two adjacent first metal leads;

[0007] At least one of the first metal pattern blocks includes: a first pattern portion and a second pattern portion; the second pattern portion is located on the side of the first pattern portion away from the display area, and the maximum width of the first pattern portion in a second direction is different from the maximum width of the second pattern portion in the second direction, the second direction being perpendicular to the first direction.

[0008] In one possible implementation, the first metal lead includes: a first sub-metal trace segment, and a second sub-metal trace segment located on the side of the first sub-metal trace segment away from the display area; the first sub-metal trace segment is straight and extends along the first direction, and the second sub-metal trace segment is bent.

[0009] The first pattern portion is located between two first sub-metal trace segments of two adjacent first metal leads; the second pattern portion is located between the second sub-metal trace segment of one of the first metal leads and the first sub-metal trace segment of another adjacent first metal lead, and the second pattern portion terminates at the beginning of the second sub-metal trace segment of the other adjacent first metal lead.

[0010] In one possible implementation, the first metal lead includes: a first sub-metal lead located in the central region of the fan-shaped trace area, and a plurality of second sub-metal leads located on both sides of the first sub-metal lead; in the direction from the first sub-metal lead to the second sub-metal lead, the distance between the second sub-metal lead segment of each first metal lead and the display area gradually increases.

[0011] In at least one of the first metal pattern blocks, the extension line of the second outer edge of the second pattern portion on the side away from the first sub-metal lead coincides with the first outer edge of the first pattern portion on the side away from the first sub-metal lead; and the maximum width of the first pattern portion in the second direction is greater than the maximum width of the second pattern portion in the second direction.

[0012] In one possible implementation, at least a portion of the first metal lead further includes: a third sub-metal trace located on the side of the first sub-metal trace segment near the display area, and a fourth sub-metal trace located on the side of the third sub-metal trace segment near the display area; the third metal trace segment extends along a third direction; the fourth sub-metal trace segment extends along the first direction; the third direction intersects the first direction and the second direction;

[0013] At least a portion of the first metal pattern block further includes: a third pattern portion; at least a portion of the third pattern portion is located between two adjacent fourth sub-metal trace segments.

[0014] In one possible implementation, the third pattern portion includes: a third edge toward the fourth sub-metal trace segment, a fourth edge toward the third sub-metal trace segment, and a fifth edge toward the display area side;

[0015] The third edge is parallel to the fourth sub-metal trace segment, the fourth edge is parallel to the third sub-metal trace segment, and the fifth edge is parallel to the second direction.

[0016] In one possible implementation, the first metal pattern block and the first metal lead, and / or adjacent first metal leads have a plurality of first spacings, wherein the difference between any two first spacings is less than or equal to 0.5 μm;

[0017] Wherein, the first spacing includes at least one of the following:

[0018] The minimum spacing between the first patterned portion and the first sub-metal trace segment adjacent to one side;

[0019] The minimum spacing between the first patterned portion and the first sub-metal trace segment adjacent to it on the other side;

[0020] The minimum spacing between the second pattern section and the first sub-metal trace segment adjacent to one side;

[0021] The minimum spacing between the second pattern section and the second sub-metal trace segment adjacent to one side;

[0022] The minimum spacing between the fourth edge and the third sub-metal trace segment;

[0023] The minimum spacing between two adjacent third sub-metal trace segments;

[0024] The minimum spacing between adjacent segments of the second sub-metal trace segment.

[0025] In one possible implementation, the first spacing ranges from 2 μm to 15 μm.

[0026] In one possible implementation, the first pattern portion further includes: a first cutout portion; at least a portion of the outer contour shape of the first cutout portion is similar to the outer contour shape of the first pattern portion.

[0027] In one possible implementation, the first cutout portion includes: a plurality of sub-first cutout portions distributed along the first direction; the different sub-first cutout portions have the same length in the first direction.

[0028] In one possible implementation, the third pattern portion further includes a second cutout portion; at least a portion of the edge of the second cutout portion is parallel to the outer edge of the opposite third pattern portion.

[0029] In one possible implementation, the second cutout portion includes: a plurality of sub-second cutout portions distributed along the second direction; the different sub-second cutout portions have the same length in the second direction.

[0030] In one possible implementation, the maximum width of the first pattern portion in the second direction is 2 to 25 times the maximum width of the second pattern portion in the second direction.

[0031] In one possible implementation, the first metal pattern block and the first metal lead are in the same layer and made of the same material.

[0032] This application also provides a display device, including the array substrate provided in the example described in this application.

[0033] The beneficial effects of this utility model embodiment are as follows: In this embodiment, by setting a first metal pattern block in the blank area between two adjacent first metal leads in the fan-shaped trace area, and setting the maximum width of the first pattern part in the second direction to be different from the maximum width of the second pattern part in the second direction, when the spacing between two adjacent second metal leads at different positions is different, the spacing between the first metal pattern block and the adjacent second metal leads at different positions can be kept consistent. This is beneficial to make the exposure uniformity of the first metal lead 2 better, improve the line width uniformity of the first metal lead, improve the line resistance difference, and solve the problem of horizontal and vertical lines when the grayscale display difference is caused by the impedance difference of the metal conductor. Attached Figure Description

[0034] Figure 1 A schematic diagram of the array substrate provided in an embodiment of this utility model;

[0035] Figure 2 One of the schematic diagrams of the fan-shaped wiring area provided in the embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of the fan-shaped trace area after being filled with dummy metal and photolithographically lithographically reproduced in an embodiment of this utility model.

[0037] Figure 4 A schematic diagram of the linewidth of the first metal lead without dummy metal in the fan-shaped trace area provided in this embodiment of the utility model after photolithography.

[0038] Figure 5A for Figure 2 A schematic diagram of a cross section at the dashed line A1-A1;

[0039] Figure 5B for Figure 2 Another cross-sectional view at A1-A1;

[0040] Figure 6 A second schematic diagram of the fan-shaped wiring area provided in this embodiment of the utility model;

[0041] Figure 7This is the third schematic diagram of the fan-shaped wiring area provided in the embodiment of this utility model. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0043] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0044] As used herein, “approximately” or “substantially the same” includes the stated value and means within an acceptable range of deviations from the specific value, as determined by a person skilled in the art taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., limitations of the measurement system). For example, “substantially the same” may mean a difference relative to the stated value within one or more standard deviations, or within ±30%, 20%, 10%, or 5%.

[0045] In the accompanying drawings, the thicknesses of layers, films, panels, regions, etc., are enlarged for clarity. Exemplary embodiments are described herein with reference to cross-sectional views that are schematic diagrams of idealized embodiments. Thus, deviations from the shapes shown in the drawings will be expected as a result of, for example, manufacturing techniques and / or tolerances. Therefore, the embodiments described herein should not be construed as limited to the specific shapes of the regions shown herein, but rather include deviations in shape caused, for example, by manufacturing processes. For example, regions illustrated or described as flat may typically have rough and / or non-linear characteristics. Furthermore, sharp corners illustrated may be rounded. Thus, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the precise shapes of the regions, nor are they intended to limit the scope of the claims.

[0046] To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0047] See Figure 1 This utility model embodiment provides an array substrate having a display area AA and at least one fan-shaped trace area F located around the display area AA; the array substrate includes: multiple first metal traces 1 extending along a first direction X, multiple first metal leads 2, and multiple first metal pattern blocks 3.

[0048] Wherein, the first metal trace 1 is located in the display area AA; the first metal lead 2 is located in the fan-shaped trace area F and is electrically connected to the first metal trace 1; at least one first metal pattern block 3 is located in the gap between two adjacent first metal leads 2; optionally, for example, the first metal trace 1 is a data line, and the first metal lead 2 is a lead that connects the data line to the IC.

[0049] At least one first metal pattern block 3 includes: a first pattern portion 31 and a second pattern portion 32; the second pattern portion 32 is located on the side of the first pattern portion 31 away from the display area AA, and the maximum width L6 of the first pattern portion 31 in the second direction Y is different from the maximum width L5 of the second pattern portion 32 in the second direction Y, the second direction Y being perpendicular to the first direction X.

[0050] In this embodiment, a first metal pattern block 3 is provided in the space between two adjacent first metal leads 2 in the fan-shaped trace area F. The maximum width L6 of the first pattern portion 31 in the second direction Y is different from the maximum width L5 of the second pattern portion 32 in the second direction Y. This ensures that the spacing between the first metal pattern block 3 and the adjacent second metal leads 2 remains consistent at different positions, even when the spacing between the two adjacent second metal leads 2 is different. For example, combined with... Figure 2 As shown, the spacing of the first metal leads 2 is smaller at the serpentine traces and larger at the lower vertical traces. By setting a first metal pattern block 3 between the two first metal leads 2, and making the width of the first metal pattern block 3 corresponding to the serpentine trace of the first metal lead 2 smaller, and the width of the first metal pattern block 3 corresponding to the vertical trace of the first metal lead 2 larger, the spacing between the first metal lead 2 and the adjacent first metal pattern block can be kept the same at different trace segments. This is beneficial to improve the exposure uniformity of the first metal leads 2, improve the line width uniformity of the first metal leads 2, improve the line resistance difference, and solve the horizontal and vertical stripe (mura problem) when the grayscale display difference is caused by the impedance difference of the metal conductor.

[0051] In one possible implementation, see Figure 2As shown, the first metal lead 2 includes: a first sub-metal trace segment 21, and a second sub-metal trace segment 22 located on the side of the first sub-metal trace segment 21 away from the display area AA; the first sub-metal trace segment 21 is straight and extends along the first direction X, and the second sub-metal trace segment 22 is bent; for example, the second sub-metal trace segment 22 is snake-shaped.

[0052] The first pattern portion 31 is located between two first sub-metal trace segments 21 of two adjacent first metal leads 2; the second pattern portion 32 is located between the second sub-metal trace segment 22 of one of the first metal leads 2 and the first sub-metal trace segment 21 of another adjacent first metal lead 2, and the second pattern portion 32 terminates at the beginning of the second sub-metal trace segment 22 of the other adjacent first metal lead 2, for example, Figure 2 The second pattern portion 32 of the leftmost first metal pattern block 3 is located between the first sub-metal trace segment 21 of the left first metal lead 2 and the second sub-metal trace segment 22 of the right first metal lead 2, and the second pattern portion 32 terminates before the beginning of the second sub-metal trace segment 22 of the left first metal lead 2. This ensures that the spacing between the first metal lead 2 and adjacent first metal pattern blocks remains the same at different trace segments, which is beneficial for improving the exposure uniformity and linewidth uniformity of the first metal lead 2, reducing line resistance differences, and resolving the mura problem caused by differences in grayscale display due to differences in metal conductor impedance.

[0053] In one possible implementation, see Figure 2 As shown, the first metal lead 2 includes: a first sub-metal lead 201 located in the central region of the fan-shaped trace area F, and multiple second sub-metal leads 202 located on both sides of the first sub-metal lead 201; in the direction from the first sub-metal lead 201 to the second sub-metal lead 202 (e.g., Figure 2 As indicated by the middle arrow C, the distance between the second sub-metal trace segment 22 of each first metal lead 201 and the display area AA gradually increases; for example, as... Figure 2 In the middle, the distance between the first sub-metal lead 202 from the right and the first sub-metal trace 201 is greater than that between the second sub-metal lead 202 from the right and the first sub-metal trace 201. Therefore, the distance c1 between the first sub-metal lead 202 from the right and the display area AA is greater than the distance c2 between the second sub-metal lead 202 from the right and the display area AA.

[0054] In at least one first metal pattern block 3, the extension line of the second outer edge w2 of the second pattern part 32 on the side away from the first sub-metal lead 201 coincides with the first outer edge w1 of the first pattern part 31 on the side away from the first sub-metal lead 201; and the maximum width L6 of the first pattern part 31 in the second direction Y is greater than the maximum width L5 of the second pattern part 32 in the second direction Y.

[0055] In one possible implementation, see Figure 2 As shown, at least a portion of the first metal lead 2 further includes: a third sub-metal lead 23 located on the side of the first sub-metal lead 21 near the display area AA, and a fourth sub-metal lead 24 located on the side of the third sub-metal lead 23 near the display area AA; the third metal lead 23 extends along a third direction Z; the fourth sub-metal lead 24 extends along a first direction X; the third direction Z intersects with the first direction X and the second direction Y; at least a portion of the first metal pattern block 3 further includes: a third pattern portion 33; at least a portion of the third pattern portion 33 is located between two adjacent fourth sub-metal lead 24s. In this embodiment, the array substrate further includes a third pattern portion 33 located between two adjacent fourth sub-metal trace segments 24, thereby ensuring that the spacing between the third pattern portion 33 and the adjacent fourth sub-metal trace segments 24 remains consistent at different positions. This is beneficial for ensuring good exposure uniformity of the first metal lead 2 at the fourth sub-metal trace segment 24, improving the linewidth uniformity of the first metal lead 2 at the fourth sub-metal trace segment 24, reducing line resistance differences, and solving the horizontal and vertical mura problem caused by grayscale display differences due to metal conductor impedance differences.

[0056] In one possible implementation, the third patterned portion 33 can be connected to the first patterned portion 31, for example... Figure 2 In the middle, the third pattern part 33 from the left is connected to the first pattern part 31; in another possible embodiment, the third pattern part 33 may be disconnected from the first pattern part 31, for example... Figure 2 In the middle, the first third pattern part 33 from the left is disconnected from the first pattern part 31 and is not connected.

[0057] In one possible implementation, see Figure 2 As shown, some of the first metal leads 2 may also lack the third sub-metal trace segment 23 extending along the third direction Z, for example, Figure 2 The first sub-metal lead 201 may not have a third sub-metal trace segment 23 extending in the third direction Z, and the fourth sub-metal trace segment 24 is integrally connected to the first sub-metal trace segment 21. The third pattern part 33 is located between the fourth sub-metal trace segment 24 of the first sub-metal lead 201 and the fourth sub-metal trace segment 24 of the second sub-metal lead 202.

[0058] In one possible implementation, see Figure 2 As shown, the third pattern section 33 includes: a third edge f3 facing the fourth sub-metal trace segment 24, a fourth edge f4 facing the third sub-metal trace segment 23, and a fifth edge f5 facing the display area AA side; the third edge f3 is parallel to the fourth sub-metal trace segment 24, the fourth edge f4 is parallel to the third sub-metal trace segment 23, and the fifth edge f5 is parallel to the second direction Y. This ensures that the distance between the third pattern section 33 and its corresponding edges is equal.

[0059] In one possible implementation, see Figure 2 As shown, the first metal pattern block 3 and the first metal lead 2 and / or adjacent first metal lead 2 have multiple first spacings, and the difference between any two first spacings is less than or equal to 0.5 μm;

[0060] The first spacing includes at least one of the following:

[0061] The minimum spacing S3 between the first pattern section 31 and the first sub-metal trace segment 21 adjacent to one side (such as the right side);

[0062] The minimum spacing S4 between the first pattern section 31 and the first sub-metal trace segment 21 adjacent to the other side (such as the left side);

[0063] The minimum spacing S5 between the second pattern section 32 and the first sub-metal trace segment 21 adjacent to one side (such as the left side);

[0064] The minimum spacing S7 between the second pattern section 32 and the second sub-metal trace segment 22 adjacent to one side (such as the left side);

[0065] The minimum spacing S6 between the fourth edge f4 and the third sub-metal trace segment 23;

[0066] The minimum spacing S2 between two adjacent third sub-metal trace segments 23;

[0067] The minimum spacing S1 between adjacent segments of the second sub-metal trace segment 22.

[0068] In one possible implementation, see Figure 2 As shown, the range of the first spacing is 2μm to 15μm.

[0069] It should be noted that, Figure 2S1 and S2, listed in the figure, represent the first spacing between adjacent first metal leads 2. S3, S4, S5, S6, and S7 represent the first spacing between the first metal leads 2 and adjacent first metal patterns 3. The absolute value of the difference between these first spacings is ≤0.5μm, and the spacing values ​​range from 2μm to 15μm. The various first spacing markings in the figure are for illustrative purposes only. The first spacing may also include the space values ​​between all first metal leads 2 and adjacent first metal leads 2 in the fan-shaped trace area, as well as the space values ​​between the first metal leads 2 and adjacent first metal patterns 3.

[0070] It should be noted that, Figure 2 L5 and L6, as listed, are the widths of the narrow and wide portions of the first metallic pattern 3, respectively. L5 ranges from 2μm to 20μm, and L6 ranges from 5μm to 50μm. Figure 2 The L-value identifiers for the range size of each filled graphic in the document are for illustrative purposes only and are not intended to limit this application.

[0071] In one possible implementation, the maximum width of the first pattern portion 31 in the second direction Y is 2 to 25 times the maximum width of the second pattern portion 32 in the second direction.

[0072] Figure 3 The first metal lead 2 is filled with photolithography patterns of double-sided first metal pattern 3 (dummy metal, double-sided DM), single-sided first metal pattern 3 (single-sided DM), and no first metal pattern 3 (no DM). The space design width of the first metal pattern 3 and the adjacent first metal lead 2 is consistent with the space design width between the serpentine traces in the figure. L1, L2, L3, and L4 in the figure represent four line width test points on the pattern.

[0073] Figure 4 for Figure 3 The photo-backline width test values ​​of the four test points show that the photo-backline width L1 of the first metal lead 2 line with the first metal pattern 3 filled on both sides is closest to the photo-backline width L4 of the serpentine first metal lead 2 line. The line width L4 of the first metal lead 2 line without the first metal pattern 3 filled on both sides has the largest difference, proving that the filling effect of the first metal pattern 3 is significant.

[0074] In one possible implementation, see Figure 5A and Figure 5B As shown, Figure 5A for Figure 2 A schematic diagram of a cross-section at point A1-A1. Figure 5B for Figure 2 Another cross-sectional view at A1-A1 shows that the first metal pattern block 3 and the first metal lead 2 are in the same layer and made of the same material. See also Figure 5A As shown, the first metal lead 2 can be located in the first metal layer, and the first metal layer can also be provided with a gate line; a gate insulating layer is also provided on the side of the first metal lead 2 facing away from the substrate; a passivation layer is also provided on the side of the gate insulating layer facing away from the first metal lead. See also Figure 5B As shown, the first metal lead can be located in the second metal layer, and the second metal layer can also be provided with data lines; the first metal lead can be located on the side of the gate insulating layer away from the substrate; a passivation layer can also be provided on the side of the first metal lead away from the gate insulating layer. The film thickness of the first metal lead 2 is... The thickness of the gate insulating layer GI is The passivation layer may include a first passivation layer and a second passivation layer; the thickness of the first passivation layer (PVX) is... The thickness of the second passivation layer (PVX2) is

[0075] In one possible implementation, the shape of the first metal pattern block 3 can be a rectangle, square, trapezoid, parallelogram, irregular quadrilateral, or various hollow patterns.

[0076] For example, see Figure 6 As shown, the first patterned portion 31 further includes a first hollowed-out portion 310; at least a portion of the outer contour shape of the first hollowed-out portion 310 is similar to the outer contour shape of the first patterned portion 31. In this embodiment, the first patterned portion 31 further includes a first hollowed-out portion 310, which is more conducive to improving the exposure uniformity of the first metal lead 2, increasing the linewidth uniformity of the first metal lead 2, improving line resistance differences, and solving the horizontal and vertical mura problem caused by grayscale display differences due to metal conductor impedance differences.

[0077] In one possible implementation, see Figure 7 As shown, the first cutout portion 310 includes a plurality of sub-first cutout portions 311 distributed along the first direction X; the different sub-first cutout portions 311 have the same length in the first direction X. In one possible embodiment, the different sub-first cutout portions 311 may also have different lengths in the first direction X.

[0078] In one possible implementation, see Figure 6 As shown, the third patterned portion 33 further includes a second cutout portion 330; at least a portion of the edge of the second cutout portion 330 is parallel to the outer edge of the opposite third patterned portion 33. This is more conducive to improving the exposure uniformity of the first metal lead 2, increasing the linewidth uniformity of the first metal lead 2, mitigating line resistance differences, and resolving the mura problem caused by grayscale display differences due to impedance differences in the metal conductors.

[0079] In one possible implementation, see Figure 7 As shown, the second cutout portion 330 includes a plurality of sub-second cutout portions 331 distributed along the second direction; the different sub-second cutout portions 331 have the same length in the second direction. In one possible embodiment, the different sub-second cutout portions 331 may also have different lengths in the second direction.

[0080] Based on the same concept, embodiments of this application also provide a display device, including an array substrate as provided in embodiments of this application. The display device may include a display panel, which may include the array substrate provided in embodiments of this application. Implementation of the display device can refer to the embodiments of the array substrate described above; repeated details will not be repeated.

[0081] In specific implementations, in the embodiments of this disclosure, the display device can be any product or component with display function, such as a mobile phone, tablet computer, television, monitor, laptop computer, digital photo frame, or navigator. Other essential components of the display device are those that should be understood by those skilled in the art, and will not be described in detail here, nor should they be construed as limiting this disclosure.

[0082] Although preferred embodiments of this disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0083] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An array substrate, having a display area, and at least one fan-shaped trace area located at the periphery of the display area; characterized in that, The array substrate includes: multiple first metal traces extending along a first direction, multiple first metal leads, and multiple first metal pattern blocks. Wherein, the first metal trace is located in the display area; the first metal lead is located in the fan-shaped trace area and is electrically connected to the first metal trace; at least one first metal pattern block is located in the gap between two adjacent first metal leads; At least one of the first metal pattern blocks includes: a first pattern portion and a second pattern portion; the second pattern portion is located on the side of the first pattern portion away from the display area, and the maximum width of the first pattern portion in a second direction is different from the maximum width of the second pattern portion in the second direction, the second direction being perpendicular to the first direction.

2. The array substrate of claim 1, wherein, The first metal lead includes: a first sub-metal trace segment, and a second sub-metal trace segment located on the side of the first sub-metal trace segment away from the display area; the first sub-metal trace segment is straight and extends along the first direction, and the second sub-metal trace segment is bent. The first pattern portion is located between two first sub-metal trace segments of two adjacent first metal leads; the second pattern portion is located between the second sub-metal trace segment of one of the first metal leads and the first sub-metal trace segment of another adjacent first metal lead, and the second pattern portion terminates at the beginning of the second sub-metal trace segment of the other adjacent first metal lead.

3. The array substrate of claim 2, wherein, The first metal lead includes: a first sub-metal lead located in the central region of the fan-shaped trace area, and multiple second sub-metal leads located on both sides of the first sub-metal lead; in the direction from the first sub-metal lead to the second sub-metal lead, the distance between the second sub-metal lead segment of each first metal lead and the display area gradually increases; In at least one of the first metal pattern blocks, the extension line of the second outer edge of the second pattern portion on the side away from the first sub-metal lead coincides with the first outer edge of the first pattern portion on the side away from the first sub-metal lead; and the maximum width of the first pattern portion in the second direction is greater than the maximum width of the second pattern portion in the second direction.

4. The array substrate of claim 3, wherein, At least a portion of the first metal lead further includes: a third sub-metal trace located on the side of the first sub-metal trace segment near the display area, and a fourth sub-metal trace located on the side of the third sub-metal trace segment near the display area; the third metal trace segment extends along a third direction; the fourth sub-metal trace segment extends along the first direction; the third direction intersects the first direction and the second direction; At least a portion of the first metal pattern block further includes: a third pattern portion; at least a portion of the third pattern portion is located between two adjacent fourth sub-metal trace segments.

5. The array substrate as described in claim 4, characterized in that, The third pattern portion includes: a third edge toward the fourth sub-metal trace segment, a fourth edge toward the third sub-metal trace segment, and a fifth edge toward the display area side; The third edge is parallel to the fourth sub-metal trace segment, the fourth edge is parallel to the third sub-metal trace segment, and the fifth edge is parallel to the second direction.

6. The array substrate as described in claim 5, characterized in that, The first metal pattern block and the first metal lead, and / or adjacent first metal leads have multiple first gaps, and the difference between any two first gaps is less than or equal to 0.5 μm; Wherein, the first spacing includes at least one of the following: The minimum spacing between the first patterned portion and the first sub-metal trace segment adjacent to one side; The minimum spacing between the first patterned portion and the first sub-metal trace segment adjacent to it on the other side; The minimum spacing between the second pattern section and the first sub-metal trace segment adjacent to one side; The minimum spacing between the second pattern section and the second sub-metal trace segment adjacent to one side; The minimum spacing between the fourth edge and the third sub-metal trace segment; The minimum spacing between two adjacent third sub-metal trace segments; The minimum spacing between adjacent segments of the second sub-metal trace segment.

7. The array substrate as described in claim 6, characterized in that, The first spacing ranges from 2μm to 15μm.

8. The array substrate as described in claim 4, characterized in that, The first pattern portion further includes: a first hollow portion; at least a portion of the outer contour shape of the first hollow portion is similar to the outer contour shape of the first pattern portion.

9. The array substrate as described in claim 8, characterized in that, The first hollow portion includes: a plurality of sub-first hollow portions distributed along the first direction; the different sub-first hollow portions have the same length in the first direction.

10. The array substrate as claimed in claim 8, characterized in that, The third pattern portion further includes: a second hollow portion; at least a portion of the edge of the second hollow portion is parallel to the outer edge of the corresponding third pattern portion.

11. The array substrate as claimed in claim 10, characterized in that, The second hollow portion includes: a plurality of sub-second hollow portions distributed along the second direction; the different sub-second hollow portions have the same length in the second direction.

12. The array substrate as claimed in claim 1, characterized in that, The maximum width of the first pattern portion in the second direction is 2 to 25 times the maximum width of the second pattern portion in the second direction.

13. The array substrate according to any one of claims 1-12, characterized in that, The first metal pattern block and the first metal lead are in the same layer and made of the same material.

14. A display device, characterized in that, Includes the array substrate as described in any one of claims 1-13.

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