Display substrate, display panel and display device

Abstract

The display substrate, the display panel and the display device are provided. The display substrate has a display area and a non-display area located at the periphery of the display area. The display substrate comprises: a plurality of fan-shaped wiring groups located in the non-display area, at least one fan-shaped wiring group in the plurality of fan-shaped wiring groups comprises a plurality of fan-shaped area wirings; a common electrode located between adjacent fan-shaped wiring groups in the non-display area, the common electrode comprises a boundary wiring located in a common wiring group in a region surrounded by the boundary wiring; the common wiring group comprises a plurality of first common wirings and a plurality of second common wirings, the plurality of first common wirings and the plurality of second common wirings cross to form a mesh structure; and the extension direction of at least one first common wiring is the same as the extension direction of at least one fan-shaped area wiring.

Description

Technical Field

[0001] This disclosure relates to the field of semiconductor technology, and more particularly to a display substrate, display panel, and display device. Background Technology

[0002] Display devices are used in all aspects of our lives. Most display panels on the market are backlit liquid crystal displays (LCDs), which include the liquid crystal display panel and the backlight module. The working principle of an LCD panel is to place liquid crystal molecules between two parallel substrates (array substrate and color filter substrate). By controlling whether electricity is applied, the orientation of the liquid crystal molecules is changed, refracting the light from the backlight module to produce an image. On the color filter substrate and array substrate of the LCD, there is a thin film material (liquid crystal alignment layer), called the alignment film, which is commonly made of polyimide. Its main function is to provide alignment control for the liquid crystal molecules, ensuring that the liquid crystal molecules are aligned in the correct direction and form a certain pretilt angle. Summary of the Invention

[0003] This disclosure provides a display substrate, a display panel, and a display device. The display substrate has a display area and a non-display area located around the display area, wherein the display substrate includes:

[0004] Multiple fan-shaped trace groups are located in the non-display area, and at least one of the multiple fan-shaped trace groups includes: multiple fan-shaped area traces;

[0005] A common electrode is located between adjacent fan-shaped trace groups in the non-display area. The common electrode includes: a boundary trace, a common trace group located within the area enclosed by the boundary trace; the common trace group includes: multiple first common traces and multiple second common traces, the multiple first common traces and the multiple second common traces intersecting to form a mesh structure.

[0006] The extension direction of at least one of the first common traces is the same as the extension direction of at least one of the sector area traces.

[0007] In one possible implementation, the plurality of first common routes include: a first sub-common route group and a second sub-common route group distributed sequentially along a first direction; the first sub-common route group includes: a plurality of first sub-common routes extending in the same direction; the second sub-common route group includes: a plurality of second sub-common routes extending in the same direction.

[0008] The extension direction of the first sub-common route is the same as the extension direction of the adjacent sector area route; the extension direction of the second sub-common route is the same as the extension direction of the adjacent sector area route.

[0009] In one possible implementation, the fan-shaped trace group includes: a first sub-fan-shaped trace group and a second sub-fan-shaped trace group distributed sequentially along the first direction; the first sub-fan-shaped trace group includes: multiple first sub-fan-shaped traces extending in the same direction; the second sub-fan-shaped trace group includes: multiple second sub-fan-shaped traces extending in the same direction; the second sub-fan-shaped traces have different extending directions from the first sub-fan-shaped traces.

[0010] The first sub-common routing group is adjacent to the second sub-sector routing group in one of the sector routing groups, and the extension direction of the first sub-common routing group is the same as the extension direction of the adjacent second sub-sector routing group; the second sub-common routing group is adjacent to the first sub-sector routing group in another sector routing group; the extension direction of the second sub-common routing group is the same as the extension direction of the adjacent first sub-sector routing group.

[0011] In one possible implementation, the second common trace extends in a direction perpendicular to the first direction.

[0012] In one possible implementation, the second common routing includes: multiple third sub-common routings extending in the same direction, and multiple fourth sub-common routings extending in the same direction.

[0013] The extension direction of the third sub-common routing line is perpendicular to the extension direction of the first sub-common routing line, and the third sub-common routing line intersects with the first sub-common routing line to form a mesh structure.

[0014] The extension direction of the fourth sub-common route is perpendicular to the extension direction of the second sub-common route, and the fourth sub-common route intersects with the second sub-common route to form a mesh structure.

[0015] In one possible implementation, the first sub-common trace forms a first gap with the first sub-common trace adjacent to one side, and the first sub-common trace forms a second gap with the first sub-common trace adjacent to the other side; the third sub-common traces between the first gap and the second gap are staggered.

[0016] The second sub-common trace forms a third gap with the second sub-common trace adjacent to one side, and forms a fourth gap with the second sub-common trace adjacent to the other side; the fourth sub-common traces between the third gap and the fourth gap are staggered.

[0017] In one possible implementation, the non-display area includes: a third common trace located on the side of the common electrode facing the display area;

[0018] The display substrate further includes: a connecting electrode connecting the third common trace and the common electrode; the connecting electrode includes: multiple first connecting traces and multiple second connecting traces; the first connecting traces and the second connecting traces intersect to form a mesh structure.

[0019] In one possible implementation, the first connection trace includes: a first sub-connection trace and a second sub-connection trace;

[0020] The extension direction of the first sub-connection trace is the same as the extension direction of the first sub-common trace; the extension direction of the second sub-connection trace is the same as the extension direction of the second sub-common trace.

[0021] In one possible implementation, the first connection trace extends along the first direction.

[0022] In one possible implementation, the second connection trace extends in a direction perpendicular to the first direction.

[0023] In one possible implementation, the common electrode includes: a plurality of first grids, a plurality of second grids, and a plurality of third grids; the area of ​​the first grids is larger than the area of ​​the second grids, and the area of ​​the second grids is larger than the area of ​​the third grids.

[0024] In one possible implementation, the common electrode includes: a first common electrode region, a second common electrode region, and a third common electrode region sequentially distributed along the first direction;

[0025] The second grid is distributed within the first common electrode region and the third common electrode region;

[0026] The first grid and the third grid are distributed in the second common electrode region, and the first grid and the third grid are alternately distributed in the direction perpendicular to the first direction.

[0027] In one possible implementation, the area of ​​the grid within the connecting electrode is approximately equal to the area of ​​the second grid within the common electrode.

[0028] In one possible implementation, the grid area within the connecting electrode is larger than the grid area within the common electrode.

[0029] In one possible implementation, the aperture ratio of the connecting electrode is greater than 50%; the aperture ratio of the common electrode is greater than 50%.

[0030] In one possible implementation, the non-display area includes a third common trace located on the side of the common electrode facing the display area; the common electrode is directly electrically connected to the third common trace.

[0031] In one possible implementation, at least one floating trace is provided between the common electrode and the fan-shaped trace group; the extension direction of the floating trace is the same as the extension direction of the adjacent fan-shaped trace.

[0032] In one possible implementation, multiple floating traces are evenly distributed between the common electrode and the fan-shaped trace group.

[0033] In one possible implementation, the display substrate further includes, located in the non-display area, a plurality of first transition structures and sector transition traces corresponding one-to-one with the sector traces; the sector transition traces are electrically connected to the sector traces through the first transition structures.

[0034] In one possible implementation, the display substrate further includes: a second adapter structure located in the non-display area; the third common trace is electrically connected to a fourth common trace located in the display area through the second adapter structure.

[0035] This disclosure also provides a display panel, which includes the display substrate as described in this disclosure.

[0036] This disclosure also provides a display device, which includes the display panel as described in this disclosure. Attached Figure Description

[0037] Figure 1 This is one of the top view schematic diagrams of the display substrate provided in the embodiments of this disclosure;

[0038] Figure 2 for Figure 1 One of the enlarged schematic diagrams of point S within the dashed frame;

[0039] Figure 3 for Figure 1 Second enlarged schematic diagram of point S within the dashed frame;

[0040] Figure 4 for Figure 1 Third enlarged schematic diagram of point S within the dashed frame;

[0041] Figure 5 This is one of the magnified schematic diagrams of a common electrode.

[0042] Figure 6 This is the second enlarged schematic diagram of the common electrode.

[0043] Figure 7 This is the third enlarged schematic diagram of the common electrode.

[0044] Figure 8 for Figure 1 Fourth enlarged schematic diagram of point S within the dashed frame;

[0045] Figure 9 for Figure 1 Fifth enlarged schematic diagram of point S within the dashed frame;

[0046] Figure 10 for Figure 1 Sixth enlarged schematic diagram of point S within the dashed frame;

[0047] Figure 11 for Figure 1 The seventh enlarged schematic diagram of point S within the dashed frame. Detailed Implementation

[0048] 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.

[0049] 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.

[0050] 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%.

[0051] 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 do not represent the precise shapes of the illustrated regions and are not intended to limit the scope of the claims.

[0052] To keep the following description of the embodiments of this disclosure clear and concise, detailed descriptions of known functions and known components are omitted.

[0053] Under normal circumstances, when no signal is applied, the LCD screen is completely black, and light cannot pass through it. Light leakage in this dark state severely degrades the overall visual effect of the display, resulting in a poor visual experience for consumers. One cause of light leakage at the corners of an LCD screen is uneven distribution of the alignment film coated on the non-display and display areas of the array substrate. During the film formation process, the alignment liquid flows along the straight area of ​​the peripheral circuit (Fanout), where diffusion is poor in the adjacent common electrode (Vcom) introduction area, leading to alignment liquid accumulation. This accumulation results in defects such as yellowing at the corners and mura, severely affecting image quality. Specifically, in conventional technology, the Vcom area uses a square grid-like wiring pattern with vertical / horizontal wiring directions, high wiring density, and low aperture ratio. The Fanout areas are located on both sides of the Vcom area, with the Fanout wiring directions at a certain angle. Between the Vcom and Fanout areas is a substrate blank area with a lower height, forming a channel. In actual production, when the alignment liquid is coated, the alignment liquid flows faster along the blank area of ​​the substrate between Vcom and Fanout, and flows slower along the grid line direction of the Vcom area. This makes it easy for the alignment liquid to accumulate in the Vcom area, resulting in phenomena such as yellowing at the edges and mura around the edges, which seriously affects the image quality.

[0054] In view of this, see Figures 1-7 As shown, where, Figures 2-4 for Figure 1 Enlarged view of point S within the dashed frame. Figure 5 This is one of the magnified schematic diagrams of a common electrode. Figure 6 This is the second enlarged schematic diagram of a portion of the common electrode. Figure 7The third enlarged schematic diagram of a common electrode shows that this embodiment of the present disclosure provides a display substrate having a display area AA and a non-display area BB located around the display area AA. The display substrate includes:

[0055] Multiple sector-shaped trace groups F are located in the non-display area BB. At least one sector-shaped trace group F includes: multiple sector area traces F0.

[0056] A common electrode C is located between adjacent fan-shaped trace groups F in the non-display area BB. The common electrode C includes: a boundary trace C1 and a common trace group C2 located within the area enclosed by the boundary trace C1. The common trace group C2 includes: multiple first common traces C21 and multiple second common traces C22. The multiple first common traces C21 and the multiple second common traces C22 intersect to form a mesh structure.

[0057] The extension direction of at least one first common route C21 is the same as the extension direction of at least one sector route F0.

[0058] In this embodiment, the common electrode C includes: a boundary trace C1, and a common trace group C2 located within the area enclosed by the boundary trace C1. The common trace group C2 includes: multiple first common traces C21 and multiple second common traces C22. The extension direction of at least one first common trace C21 is the same as the extension direction of at least one fan-shaped area trace F0. By changing the wiring structure of the common electrode C, the resistance can be reduced while the flow direction of the alignment liquid can be changed during the coating process, thereby improving problems such as yellowing at the edges and mura around the edges. At the same time, it can effectively improve the edge margin of the alignment film, which can further reduce the thickness of the liquid crystal cell and reduce costs. Moreover, this embodiment effectively improves image quality, increases yield, and reduces costs without adding additional masking processes and manufacturing processes.

[0059] It should be noted that, Figure 1 This illustration is based on a display substrate comprising two fan-shaped trace groups F and a common electrode C. In specific implementations, the display substrate may also include more fan-shaped trace groups F and more common electrodes C. This disclosure is not limited to this.

[0060] In one possible implementation, see Figures 2-7 As shown, the multiple first common routing lines C21 include: a first sub-common routing line group C211 and a second sub-common routing line group C212 distributed sequentially along the first direction X; the first sub-common routing line group C211 includes: multiple first sub-common routing lines C2110 extending along the same direction; the second sub-common routing line group C212 includes: multiple second sub-common routing lines C2120 extending along the same direction;

[0061] The extension direction of the first sub-common route C2110 is the same as the extension direction of the adjacent sector route F0; the extension direction of the second sub-common route C2120 is the same as the extension direction of the adjacent sector route F0. Specifically, for example... Figure 2 In the diagram, the first sub-common route C2110 is adjacent to the fan-shaped route F0 on the left. Therefore, the extension direction of the first sub-common route C2110 is the same as the extension direction of the adjacent fan-shaped route F0 on the left. The second sub-common route C2120 is adjacent to the fan-shaped route F0 on the right. Therefore, the extension direction of the second sub-common route C2120 is the same as the extension direction of the adjacent fan-shaped route F0 on the right.

[0062] In one possible implementation, see Figures 1-7 As shown, the fan-shaped trace group F includes: a first sub-fan-shaped trace group F1 and a second sub-fan-shaped trace group F2, which are distributed sequentially along the first direction X; the first sub-fan-shaped trace group F1 includes: multiple first sub-fan-shaped traces F11 extending in the same direction; the second sub-fan-shaped trace group F2 includes: multiple second sub-fan-shaped traces F21 extending in the same direction; the extension direction of the second sub-fan-shaped traces F21 is different from that of the first sub-fan-shaped traces F11.

[0063] The first sub-common routing group C211 is adjacent to the second sub-sector routing group F2 in a sector routing group F. The extension direction of the first sub-common routing group C2110 is the same as the extension direction of the adjacent second sub-sector routing group F21; specifically, for example, Figure 2 In the first sub-common routing group C211, which is adjacent to the second sub-sector routing group F2 in the sector routing group F on the left, the extension direction of the first sub-common routing group C2110 is the same as the extension direction of the adjacent second sub-sector routing group F21 on the left. The second sub-common routing group C212 is adjacent to the first sub-sector routing group F1 in another sector routing group F. The extension direction of the second sub-common routing group C2120 is the same as the extension direction of the adjacent first sub-sector routing group F11. Specifically, for example... Figure 2 In this example, the second sub-common routing group C212 is adjacent to the first sub-sector routing group F1 in the right-side sector routing group F. Therefore, the extension direction of the second sub-common routing group C2120 is the same as the extension direction of the adjacent right-side first sub-sector routing group F11. In this example, unlike the vertical and horizontal grid design, an inclined Vcom routing is adopted, which makes it easier for the alignment fluid to flow along the routing, thereby improving problems such as yellowing at the corners and mura around the perimeter.

[0064] In one possible implementation, see Figures 2-5As shown, the second common routing line C22 includes: multiple third sub-common routing lines C221 extending in the same direction, and multiple fourth sub-common routing lines C222 extending in the same direction; the extension direction of the third sub-common routing line C221 is perpendicular to the extension direction of the first sub-common routing line C2110, and the third sub-common routing line C221 intersects with the first sub-common routing line C2110 to form a mesh structure; the extension direction of the fourth sub-common routing line C222 is perpendicular to the extension direction of the second sub-common routing line C2120, and the fourth sub-common routing line C222 intersects with the second sub-common routing line C2120 to form a mesh structure. In this example, the extension direction of the third sub-common line C221 is perpendicular to the extension direction of the first sub-common line C2110, and the extension direction of the fourth sub-common line C222 is perpendicular to the extension direction of the second sub-common line C2120, which makes it easier for the alignment fluid to flow along the wiring and improves the drainage effect.

[0065] In one possible implementation, see Figure 6 As shown, the second common trace C22 extends in a direction perpendicular to the first direction X. In this example, the second common trace C22 extends in a direction perpendicular to the first direction X, which simplifies the wiring method, simplifies the manufacturing of the display panel, and is suitable for mass production.

[0066] In one possible implementation, see Figures 2-5 As shown, the first sub-common route C2110 forms a first gap J1 with the first sub-common route C2110 adjacent to one side, and forms a second gap J2 with the first sub-common route C2110 adjacent to the other side; the third sub-common route C221 between the first gap J1 and the second gap J2 is staggered; the second sub-common route C2120 forms a third gap J3 with the second sub-common route C2120 adjacent to one side, and forms a fourth gap J4 with the second sub-common route C2120 adjacent to the other side; the fourth sub-common route C222 between the third gap J3 and the fourth gap J4 is staggered.

[0067] It should be noted that, in this embodiment of the present disclosure, the misaligned distribution of the third sub-common trace C221 between the first gap J1 and the second gap J2 can be understood as one of the fourth sub-common traces C221 not being on the extension line of the other fourth sub-common trace C221, that is, the endpoints of the two do not coincide; similarly, the misaligned distribution of the fourth sub-common trace C222 between the third gap J3 and the fourth gap J4 can be understood as one of the fourth sub-common traces C221 not being on the extension line of the other fourth sub-common trace C221, that is, the endpoints of the two do not coincide.

[0068] In one possible implementation, see Figure 6 As shown, the non-display area BB includes: a third common trace D located on the side of the common electrode C facing the display area AA; see also Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the display substrate also includes: a connecting electrode E connecting the third common trace D and the common electrode; the connecting electrode E includes: multiple first connecting traces E1 and multiple second connecting traces E2; the first connecting traces E1 and the second connecting traces E2 intersect to form a mesh structure.

[0069] In one possible implementation, see Figure 2 and Figure 3 As shown, the first connecting trace E1 includes a first sub-connecting trace E11 and a second sub-connecting trace E12; the extension direction of the first sub-connecting trace E11 is the same as the extension direction of the first sub-common trace C2110; the extension direction of the second sub-connecting trace E12 is the same as the extension direction of the second sub-common trace C2120.

[0070] In some embodiments, see Figure 2 and Figure 3 As shown, at least one first sub-connecting trace E11 and the first sub-common trace C2110 are integrally connected; in some embodiments, the extension lines of the integrally connected first sub-connecting trace E11 and the first sub-common trace C2110 may not overlap. At least one second sub-connecting trace E12 and the second sub-common trace C2120 are integrally connected; in some embodiments, the extension lines of the integrally connected second sub-connecting trace E12 and the second sub-common trace C2120 may not overlap.

[0071] It should be noted that "integrated connection" can be understood as two things being connected to each other, meaning that in the same layer, one end of one thing is connected to the other end of the other.

[0072] In one possible implementation, see Figure 5 As shown, the extension direction of the first sub-connecting trace E11 may differ from the extension direction of the first sub-common trace C2110; in some embodiments, the tilt angle of the first sub-connecting trace E11 is greater than the tilt angle of the first sub-common trace C2110; the extension direction of the second sub-connecting trace E12 may also differ from the extension direction of the second sub-common trace C2120; in some embodiments, the tilt angle of the second sub-connecting trace E12 is greater than the tilt angle of the second sub-common trace C2120. This provides a better drainage effect and improves the problem of severe alignment liquid accumulation at the connecting electrode E.

[0073] In one possible implementation, see Figure 6As shown, the first connection trace E1 extends along the first direction X. In this example, the first connection trace E1 extends along the first direction X, which improves the accumulation of alignment liquid at the connection electrode E, while simplifying the wiring method and helping to simplify the manufacturing of the display panel.

[0074] In one possible implementation, see Figure 6 As shown, the second connection trace E2 extends in a direction perpendicular to the first direction X. In this example, the second connection trace E2 extends in a direction perpendicular to the first direction X, which improves the accumulation of alignment liquid at the connection electrode E while simplifying the wiring method, thus simplifying the manufacturing of the display panel.

[0075] In some embodiments, see Figure 6 As shown, at least one second connecting trace E2 and the second common trace C22 are integrally connected. In some embodiments, the extension lines of the integrally connected second connecting trace E2 and the second common trace C22 coincide.

[0076] In one possible implementation, see Figures 5-7 As shown, the common electrode C includes multiple first grids W1, multiple second grids W2, and multiple third grids W3. Specifically, the first grids W1, second grids W2, and third grids W3 are areas formed by the intersection of lines in different directions, which can be cutouts. The area of ​​the first grid W1 is larger than the area of ​​the second grid W2, and the area of ​​the second grid W2 is larger than the area of ​​the third grid W3. In this embodiment, the common electrode C includes multiple first grids W1, second grids W2, and third grids W3 with different area sizes, which allows the alignment liquid to flow uniformly in the area where the common electrode C is located, avoiding problems such as yellowing at the edges and mura around the perimeter caused by the alignment liquid accumulating.

[0077] In one possible implementation, see Figure 5 or Figure 7 As shown, the common electrode C includes: a first common electrode region C01, a second common electrode region C02, and a third common electrode region C03, sequentially distributed along a first direction X; a second grid W2 is distributed within the first common electrode region C01 and the third common electrode region C03; a first grid W1 and a third grid W3 are distributed within the second common electrode region C02, and the first grid W1 and the third grid W3 are alternately distributed perpendicular to the first direction. This allows the alignment liquid to flow uniformly in the area where the common electrode C is located, avoiding problems such as yellowing at the edges and mura around the perimeter caused by the alignment liquid accumulating.

[0078] It should be noted that, Figure 5 and Figure 7This is an illustrative example using a rectangle as an example of the first common electrode region C01, the second common electrode region C02, and the third common electrode region C03. In specific implementations, the first common electrode region C01, the second common electrode region C02, and the third common electrode region C03 can also be irregular regions, and this disclosure is not limited to this.

[0079] In one possible implementation, see Figure 7 As shown, the size a1 of the first grid W1 in the first direction ranges from 50μm to 60μm, for example, it can be 50μm, 52μm, 54μm, 55μm, 56μm, 57μm, 58μm, or 60μm; the size a2 of the second grid W2 in the first direction X ranges from 25μm to 35μm, for example, it can be 25μm, 27μm, 29μm, 31μm, 32μm, 32.6μm, 33μm, 34μm, or 35μm; the size a1 of the third grid W3 in the first direction X ranges from 10μm to 20μm, for example, it can be 10μm, 12μm, 14μm, 14.9μm, 15μm, 16μm, 18μm, or 20μm.

[0080] In one possible implementation, see Figure 7 As shown, within the common electrode C, the linewidth d1 can range from 5μm to 8μm, for example, it can be 5μm, 6μm, 6.7μm, 7μm, or 8μm; the line spacing d2 can range from 6μm to 9μm, for example, it can be 6μm, 7μm, 7.2μm, 8μm, or 9μm.

[0081] In one possible implementation, the area of ​​the grid within the connecting electrode E is approximately equal to the area of ​​the second grid W2 within the common electrode C.

[0082] In one possible implementation, see Figure 5 or Figure 7 As shown, the grid area within the connecting electrode E is larger than the grid area within the common electrode C. This allows the alignment liquid at the connecting electrode E to flow more easily, mitigating the problem of severe alignment liquid accumulation at the connecting electrode E.

[0083] In one possible implementation, see Figure 6 As shown, the non-display area BB includes: a third common trace D located on the side of the common electrode C facing the display area AA; see also Figure 4As shown, the common electrode C is directly electrically connected to the third common trace D, meaning that a connecting electrode E is not required between the common electrode C and the third common trace D. The overall shape of the common electrode C changes from an irregular polygon to a triangle. In this embodiment, the direct electrical connection between the common electrode C and the third common trace D increases the overall wiring area of ​​the common electrode C, reduces the channel area formed in the gap between the Fanout region and the Vcom region, and ensures that the flow velocity of the alignment liquid is approximately equal in the gap and at the wiring location, thus improving the problem of alignment liquid aggregation.

[0084] In one possible implementation, the aperture ratio of the connecting electrode E is greater than 50%; the aperture ratio of the common electrode C is greater than 50%. In this embodiment of the present disclosure, the aperture ratio of the connecting electrode E is greater than 50%; the aperture ratio of the common electrode C is greater than 50%, which can increase the mesh area, make the alignment liquid flow more easily, and improve the problem of alignment liquid aggregation.

[0085] In one possible implementation, see Figure 3 , Figure 4 and Figure 6 As shown, at least one floating trace Z is provided between the common electrode C and the fan-shaped trace group F; the extension direction of the floating trace Z is the same as the extension direction of the adjacent fan-shaped trace F0. In this embodiment of the present disclosure, at least one floating trace Z is provided between the common electrode C and the fan-shaped trace group F, that is, a floating (Dummy) area is provided in the blank space between the Fanout area and the Vcom area, and the Dummy area is provided with at least one floating trace Z. The Dummy area is grounded and does not actually provide voltage to the display area, but only serves to guide the flow of the alignment liquid.

[0086] In some embodiments, the dummy region consists of one or more straight traces at a certain angle. The specific number of traces is determined by the size of the gap between the fanout region and the Vcom region. The spacing between the dummy region traces is equal to that of the fanout region traces, and the width of the dummy region traces can be equal to that of the fanout region traces. The tilt angle of the dummy region traces is the same as that of the fanout region traces, and they are connected to ground (GND) at the circuit signal input. The material of the floating trace Z in the dummy region can be the same as that of the fanout traces, such as Cu or Al. The dummy region is close to the Vcom region, guiding the flow of the alignment fluid in the Vcom region. The dummy region and the fanout region are fabricated in the same process, without the need for a new mask or any additional process steps.

[0087] In one possible implementation, multiple floating traces Z are evenly distributed between the common electrode C and the fan-shaped trace group F, i.e., the spacing is the same.

[0088] In one possible implementation, see Figures 2-4 , Figure 6 As shown, the display substrate also includes a plurality of first transition structures Q1 located in the non-display area BB, and sector transition lines FZ corresponding one-to-one with sector lines F0; the sector transition lines FZ are electrically connected to the sector lines F0 through the first transition structures Q1.

[0089] In one possible implementation, see Figures 2-4 , Figure 6 As shown, the display substrate also includes: a second transition structure Q2 located in the non-display area BB, and a fourth common trace (not shown in the figure) located in the display area AA; the third common trace D is electrically connected to the fourth common trace through the second transition structure Q2.

[0090] In one possible implementation, see Figure 6 As shown, the display substrate also includes: an electrostatic discharge ring G1, a first electrostatic discharge circuit G2, and a second electrostatic discharge circuit G3; the common electrode C is electrically connected to the electrostatic discharge ring G1 through the first electrostatic discharge circuit G2, and the sector area trace F0 (e.g., the first sub-sector trace F11) is electrically connected to the electrostatic discharge ring G1 through the second electrostatic discharge circuit G3 to release the generated static electricity.

[0091] In one possible implementation, see Figure 8 As shown, the multiple first common routing lines C21 can also extend along the first direction X; the multiple second common routing lines C22 can also extend along a direction perpendicular to the first direction X, that is, extend longitudinally; the multiple first common routing lines C21 and the multiple second common routing lines C22 intersect to form a mesh structure. In some embodiments, such as Figure 8 As shown, at least one floating trace Z is provided between the common electrode C and the fan-shaped trace group F; the extension direction of the floating trace Z is the same as the extension direction of the adjacent fan-shaped trace F0.

[0092] In one possible implementation, see Figure 9 As shown, the multiple first common routing lines C21 can also extend along the first direction X; the multiple second common routing lines C22 can also extend along a direction perpendicular to the first direction X, that is, extend longitudinally; the multiple first common routing lines C21 and the multiple second common routing lines C22 intersect to form a mesh structure. In some embodiments, such as Figure 8 As shown, at least one floating trace Z is provided between the common electrode C and the fan-shaped trace group F; the extension direction of the floating trace Z is the same as the extension direction of the adjacent fan-shaped trace F0. Figure 8 The difference between the embodiments shown is that, Figure 9 The illustrated embodiment can increase the mesh area inside the common electrode C, changing the opening ratio from <50% to greater than 50%, resulting in a larger mesh area and easier flow of the alignment liquid.

[0093] In one possible implementation, see Figure 10 As shown, multiple first common routes C21 can also extend along the first direction X; multiple second common routes C22 can also extend along a direction perpendicular to the first direction X, that is, along the longitudinal direction; the multiple first common routes C21 and multiple second common routes C22 intersect to form a mesh structure. Figure 8 The difference between the embodiments shown is that, Figure 10 The embodiment shown increases the grid area inside the common electrode C (from an opening ratio of <50% to greater than 50%) while not setting a connecting electrode, that is, it changes the overall shape design of the common electrode C, changing the overall shape from the original irregular polygon to a triangle, increasing the overall wiring area of ​​the common electrode C, reducing the channel area formed by the blank space between the Fanout area and the Vcom area, and making the alignment liquid flow more easily.

[0094] In one possible implementation, see Figure 11 As shown, multiple first common routes C21 can also extend along the first direction X; multiple second common routes C22 can also extend along a direction perpendicular to the first direction X, that is, along the longitudinal direction; the multiple first common routes C21 and multiple second common routes C22 intersect to form a mesh structure. Figure 10 The difference between the embodiments shown is that, Figure 11 The embodiment shown changes the overall shape design of the common electrode C, changing the overall shape from the original irregular polygon to a triangle, increasing the overall wiring area of ​​the common electrode C. At the same time, at least one floating trace Z is provided between the common electrode C and the fan-shaped trace group F; the extension direction of the floating trace Z is the same as the extension direction of the adjacent fan-shaped trace F0.

[0095] Based on the same inventive concept, embodiments of this disclosure also provide a display panel, which includes a display substrate as provided in embodiments of this disclosure.

[0096] The array substrate provided in this disclosure may include pixel circuits. The multiple transistors in the pixel circuits may be low-temperature polycrystalline silicon (LTPS) thin-film transistors (TFTs), oxide thin-film transistors (OTFTs), or a combination of both. The active layer of the LTPS TFT is made of low-temperature polycrystalline silicon (LTPS), while the active layer of the OTFT is made of oxide. LTPS TFTs have advantages such as high mobility and fast charging, while OTFTs have advantages such as low leakage current. In some examples, LTPS TFTs and OTFTs can be integrated onto a single display panel to form a low-temperature polycrystalline oxide (LTO) display panel. This leverages the advantages of both to achieve high resolution (PPI, pixels per inch), low-frequency driving, reduced power consumption, and improved display quality. However, this embodiment is not limited to this approach.

[0097] The array substrate provided in this disclosure is suitable for both vertical alignment (VA) type liquid crystal displays and advanced dimension switch (ADS) type liquid crystal displays.

[0098] Based on the same inventive concept, embodiments of this disclosure also provide a display device, which includes a display panel as provided in embodiments of this disclosure.

[0099] 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.

[0100] 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.

[0101] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. A display substrate having a display area and a non-display area located around the periphery of the display area, wherein, The display substrate includes: Multiple fan-shaped trace groups are located in the non-display area, and at least one of the multiple fan-shaped trace groups includes: multiple fan-shaped area traces; A common electrode is located between adjacent fan-shaped trace groups in the non-display area. The common electrode includes: a boundary trace, a common trace group located within the area enclosed by the boundary trace; the common trace group includes: multiple first common traces and multiple second common traces, the multiple first common traces and the multiple second common traces intersecting to form a mesh structure. The extension direction of at least one of the first common traces is the same as the extension direction of at least one of the sector area traces; The non-display area includes a third common trace located on the side of the common electrode facing the display area; the display substrate further includes a connecting electrode connecting the third common trace and the common electrode; the connecting electrode includes multiple first connecting traces and multiple second connecting traces; the first connecting traces and the second connecting traces intersect to form a mesh structure; The display substrate further includes: a second adapter structure located in the non-display area; the third common trace is electrically connected to a fourth common trace located in the display area through the second adapter structure.

2. The display substrate as claimed in claim 1, wherein, The multiple first common routing lines include: a first sub-common routing line group and a second sub-common routing line group distributed sequentially along a first direction; the first sub-common routing line group includes: multiple first sub-common routing lines extending along the same direction; the second sub-common routing line group includes: multiple second sub-common routing lines extending along the same direction; The extension direction of the first sub-common route is the same as the extension direction of the adjacent sector area route; the extension direction of the second sub-common route is the same as the extension direction of the adjacent sector area route.

3. The display substrate as described in claim 2, wherein, The fan-shaped trace group includes: a first sub-fan-shaped trace group and a second sub-fan-shaped trace group distributed sequentially along the first direction; the first sub-fan-shaped trace group includes: multiple first sub-fan-shaped traces extending in the same direction; the second sub-fan-shaped trace group includes: multiple second sub-fan-shaped traces extending in the same direction; the extension direction of the second sub-fan-shaped traces is different from that of the first sub-fan-shaped traces. The first sub-common routing group is adjacent to the second sub-sector routing group in one of the sector routing groups, and the extension direction of the first sub-common routing group is the same as the extension direction of the adjacent second sub-sector routing group; the second sub-common routing group is adjacent to the first sub-sector routing group in another sector routing group; the extension direction of the second sub-common routing group is the same as the extension direction of the adjacent first sub-sector routing group.

4. The display substrate as described in claim 2 or 3, wherein, The second common route extends in a direction perpendicular to the first direction.

5. The display substrate as described in claim 2 or 3, wherein, The second common routing includes: multiple third sub-common routings extending in the same direction, and multiple fourth sub-common routings extending in the same direction; The extension direction of the third sub-common routing line is perpendicular to the extension direction of the first sub-common routing line, and the third sub-common routing line intersects with the first sub-common routing line to form a mesh structure. The extension direction of the fourth sub-common route is perpendicular to the extension direction of the second sub-common route, and the fourth sub-common route intersects with the second sub-common route to form a mesh structure.

6. The display substrate as claimed in claim 5, wherein, The first sub-common trace forms a first gap with the first sub-common trace adjacent to one side, and forms a second gap with the first sub-common trace adjacent to the other side; the third sub-common traces between the first gap and the second gap are staggered. The second sub-common trace forms a third gap with the second sub-common trace adjacent to one side, and forms a fourth gap with the second sub-common trace adjacent to the other side; the fourth sub-common traces between the third gap and the fourth gap are staggered.

7. The display substrate as claimed in claim 2, wherein, The first connection trace includes: a first sub-connection trace and a second sub-connection trace; The extension direction of the first sub-connection trace is the same as the extension direction of the first sub-common trace; the extension direction of the second sub-connection trace is the same as the extension direction of the second sub-common trace.

8. The display substrate as claimed in claim 2, wherein, The first connection trace extends along the first direction.

9. The display substrate as claimed in claim 2, wherein, The second connection trace extends in a direction perpendicular to the first direction.

10. The display substrate according to any one of claims 7-9, wherein, The common electrode includes: a plurality of first grids, a plurality of second grids, and a plurality of third grids; the area of ​​the first grid is greater than the area of ​​the second grid, and the area of ​​the second grid is greater than the area of ​​the third grid.

11. The display substrate as claimed in claim 10, wherein, The common electrode includes: a first common electrode region, a second common electrode region, and a third common electrode region distributed sequentially along the first direction; The second grid is distributed within the first common electrode region and the third common electrode region; The first grid and the third grid are distributed in the second common electrode region, and the first grid and the third grid are alternately distributed in the direction perpendicular to the first direction.

12. The display substrate as claimed in claim 10, wherein, The area of ​​the grid within the connecting electrode is approximately equal to the area of ​​the second grid within the common electrode.

13. The display substrate as claimed in claim 10, wherein, The grid area within the connecting electrode is larger than the grid area within the common electrode.

14. The display substrate as claimed in claim 1, wherein, The aperture ratio of the connecting electrode is greater than 50%; the aperture ratio of the common electrode is greater than 50%.

15. The display substrate as claimed in claim 1, wherein, The common electrode is directly electrically connected to the third common trace.

16. The display substrate as claimed in claim 1, wherein, At least one floating trace is provided between the common electrode and the fan-shaped trace group; the extension direction of the floating trace is the same as the extension direction of the adjacent fan-shaped trace.

17. The display substrate as claimed in claim 16, wherein, Multiple floating traces are evenly distributed between the common electrode and the fan-shaped trace group.

18. The display substrate as claimed in claim 1, wherein, The display substrate further includes, located in the non-display area, a plurality of first transition structures and sector transition traces corresponding one-to-one with the sector traces; the sector transition traces are electrically connected to the sector traces through the first transition structures.

19. A display panel, wherein, Includes the display substrate as described in any one of claims 1-18.

20. A display device, wherein, Includes the display panel as described in claim 19.

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