Display substrate and display device

Abstract

A display substrate and a display device. The display substrate includes: a display area (10) and a peripheral area (20) surrounding the display area (10); the display substrate also includes: signal lines (30), a plurality of base spacers (41), a plurality of compensation spacers (40) and a packaging structure, wherein the signal lines (30) include a first portion located in the peripheral area (20); at least a portion of the plurality of base spacers (41) is located in the display area (10); the plurality of compensation spacers (40) are disposed in the first peripheral area (201), and the orthographic projection of the first peripheral area (201) on the substrate of the display substrate at least partially overlaps with the orthographic projection of the side of the first portion on the substrate; the layout density of the compensation spacers (40) is greater than the layout density of the base spacers (41); the packaging structure includes an organic encapsulation layer (IJP) and an inorganic encapsulation layer (CVD1, CVD2) stacked together, the organic encapsulation layer (IJP) and the inorganic encapsulation layer (CVD1, CVD2) covering the plurality of compensation spacers (40).

Description

Technical Field

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

[0002] Organic light-emitting diode (OLED) display devices are widely used in various fields due to their advantages such as being thin and light, having high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency.

[0003] OLED display devices generally include light-emitting elements and encapsulation layers. The encapsulation layer covers the light-emitting elements to prevent moisture and oxygen from invading into the interior of the light-emitting elements and corroding the organic light-emitting material layer in the light-emitting elements, thereby affecting the reliability of the OLED display devices. Summary of the Invention

[0004] The purpose of this disclosure is to provide a display substrate and a display device.

[0005] To achieve the above objectives, this disclosure provides the following technical solution:

[0006] A first aspect of this disclosure provides a display substrate, comprising: a display area and a peripheral area surrounding the display area; the display substrate further comprising:

[0007] A signal line, the signal line including a first portion located in the surrounding area;

[0008] Multiple base spacers, at least a portion of which are located in the display area;

[0009] Multiple compensating spacers are disposed in a first peripheral region, the orthographic projection of the first peripheral region onto the substrate of the display substrate at least partially overlaps with the orthographic projection of the side of the first portion onto the substrate; the layout density of the compensating spacers is greater than the layout density of the base spacers.

[0010] The encapsulation structure includes an organic encapsulation layer and an inorganic encapsulation layer stacked together, the organic encapsulation layer and the inorganic encapsulation layer covering the plurality of compensation spacers.

[0011] Optionally, the first part includes a first target portion, the side of which has a notch; both the inorganic encapsulation layer and the organic encapsulation layer are filled in the notch;

[0012] The orthographic projection of the first peripheral region onto the substrate of the display substrate is located on the side of the orthographic projection of the first target portion onto the substrate that is closer to the display area.

[0013] Optionally, the first part further includes:

[0014] The second target portion, at least a portion of which is located between the first target portion and the display area; the orthographic projection of the first peripheral area on the substrate of the display substrate at least partially overlaps with the orthographic projection of the second target portion on the substrate.

[0015] Optionally, the display substrate further includes:

[0016] A pixel-defining layer and a planarization layer are stacked together, wherein the planarization layer is located between the pixel-defining layer and the substrate;

[0017] The orthographic projection of the first target portion onto the substrate does not overlap with the orthographic projection of the pixel defining layer onto the substrate, nor does it overlap with the orthographic projection of the planarization layer onto the substrate.

[0018] Optionally, the orthographic projection of the second target portion on the substrate at least partially overlaps with the orthographic projection of the pixel defining layer on the substrate; and / or at least partially overlaps with the orthographic projection of the planarization layer on the substrate.

[0019] Optionally, the plurality of compensation spacers includes a plurality of first compensation spacers and / or a plurality of second compensation spacers, wherein the orthographic projections of the plurality of first compensation spacers on the substrate do not overlap with the orthographic projections of the signal line on the substrate; and the orthographic projections of the plurality of second compensation spacers on the substrate at least partially overlap with the orthographic projections of the signal line on the substrate.

[0020] Optionally, the surrounding area includes a binding area;

[0021] The display substrate further includes: a first barrier wall and a second barrier wall, wherein the first barrier wall surrounds the display area and the second barrier wall surrounds the first barrier wall;

[0022] The signal line includes a power line, and the first portion of the power line is projected onto the substrate between the projection of the first retaining wall onto the substrate and the projection of the display area onto the substrate; the first portion is close to the bonding area.

[0023] Optionally, the display substrate further includes scan lines, at least a portion of which is located in the display area, and the scan lines include a portion extending along a first direction;

[0024] The power lines include a positive power line and a negative power line;

[0025] The orthographic projection of the side of the first portion of the positive power line along the first direction onto the substrate at least partially overlaps with the orthographic projection of the first peripheral region onto the substrate.

[0026] And / or, the orthographic projection of the first portion of the negative power line along the side of the first direction onto the substrate at least partially overlaps with the orthographic projection of the first peripheral region onto the substrate.

[0027] Optionally, the signal line includes a positive power line, the positive power line including: a first common connection portion; at least a portion of the first common connection portion extends along a first direction, the first common connection portion including the first target portion.

[0028] Optionally, the first common connection portion includes a first sub-graphic to an Nth sub-graphic, where N is greater than or equal to 3, and the first sub-graphic to the Nth sub-graphic are arranged sequentially along a direction away from the display area, with the width of the first sub-graphic to the Nth sub-graphic gradually narrowing in the first direction; the second sub-graphic includes the second target portion; and the third sub-graphic includes the first target portion and the second target portion.

[0029] Optionally, the orthographic projection of the first sub-pattern onto the substrate includes a first layout area; at least a portion of the orthographic projections of the compensation spacers onto the substrate are uniformly distributed within the first layout area; or,

[0030] The orthographic projection of a portion of the base spacer onto the substrate is located in the first layout area, and the layout density of the base spacer in the first layout area is equal to the layout density of the base spacer in the display area.

[0031] Optionally, the positive power line further includes: a second common connection portion, a plurality of conductive connection portions, and two first inlet portions;

[0032] At least a portion of the second common connection extends along the first direction, and the second common connection is located on the side of the first common connection away from the display area; the second common connection and the first common connection are coupled through the plurality of conductive connections.

[0033] At least a portion of the first incoming line extends along a second direction, which intersects with the first direction; the first incoming line is located on the side of the second common connection portion away from the display area, and the two first incoming lines are respectively coupled to the second common connection portion.

[0034] Optionally, the signal line further includes a negative power line, which includes a surrounding portion and two second input portions; the surrounding portion partially surrounds the display area, and the two ends of the surrounding portion are coupled to the two second input portions one-to-one; at least a portion of the second input portions extends along the second direction; the ends of the surrounding portion include the first target portion and the second target portion.

[0035] Optionally, the orthographic projection of a portion of the compensation spacer onto the substrate at least partially overlaps with the orthographic projection of the end of the circumferential portion onto the substrate.

[0036] Optionally, the display substrate further includes: a first barrier wall and a second barrier wall, wherein the first barrier wall surrounds the display area and the second barrier wall surrounds the first barrier wall;

[0037] Along the first direction, there is a first gap region between the orthographic projection of the first common connection portion on the substrate and the orthographic projection of the end of the surrounding portion on the substrate, the first gap region being located between the orthographic projection of the first retaining wall on the substrate and the orthographic projection of the display area on the substrate; at least a portion of the orthographic projection of the compensating spacer on the substrate is evenly distributed in the first gap region.

[0038] Optionally, at least a portion of the orthographic projection of the first common connection portion on the substrate is located between the orthographic projection of the end of the surrounding portion on the substrate and the orthographic projection of the display area on the substrate, along the second direction, and a second gap exists between at least a portion of the orthographic projection of the first common connection portion on the substrate and the orthographic projection of the end of the surrounding portion on the substrate; a portion of the orthographic projection of the compensation spacer on the substrate is located in the second gap.

[0039] Optionally, the encapsulation structure includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer sequentially stacked along a direction away from the substrate; a portion of the first inorganic encapsulation layer and a portion of the organic encapsulation layer are filled in the recess, while the second inorganic encapsulation layer is not filled in the recess.

[0040] Optionally, the compensation spacer is disposed in the same layer and made of the same material as the pixel defining layer or the base spacer.

[0041] Optionally, the display substrate further includes a first source / drain metal layer and a second source / drain metal layer, wherein the first source / drain metal layer is located between the second source / drain metal layer and the substrate; a portion of the signal line is disposed in the same layer and with the same material as the first source / drain metal layer, and another portion of the signal line is disposed in the same layer and with the same material as the second source / drain metal layer.

[0042] Based on the above-described display substrate technical solution, a second aspect of this disclosure provides a display device including the display substrate provided in the above embodiments. Attached Figure Description

[0043] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this disclosure, illustrate exemplary embodiments of the present disclosure and are used to explain the disclosure, but do not constitute an undue limitation of the disclosure. In the drawings:

[0044] Figure 1 This is a first schematic diagram of the encapsulation structure near the notch provided in an embodiment of this disclosure;

[0045] Figure 2 This is a second schematic diagram of the encapsulation structure near the notch provided in an embodiment of this disclosure;

[0046] Figure 3 A schematic diagram showing the layout of positive and negative power lines in a display substrate provided in an embodiment of this disclosure;

[0047] Figure 4 This is a first schematic diagram of the positive power line in a display substrate provided in an embodiment of this disclosure;

[0048] Figure 5 This is a second schematic diagram of the positive power line in a display substrate provided in an embodiment of this disclosure;

[0049] Figure 6 for Figure 3 An enlarged schematic diagram of section X1;

[0050] Figure 7 for Figure 6 A schematic diagram of the intermediate partition zone and layout zone;

[0051] Figure 8 for Figure 3 Enlarged schematic diagram of section X2;

[0052] Figure 9 for Figure 8 A schematic diagram of the intermediate partition zone and layout zone;

[0053] Figure 10 A schematic diagram showing the layout of signal lines and compensation spacers provided in an embodiment of this disclosure;

[0054] Figure 11 This is a schematic diagram of the first peripheral region in a display substrate provided in an embodiment of the present disclosure. Detailed Implementation

[0055] To further illustrate the display substrate and display device provided in the embodiments of this disclosure, a detailed description is provided below with reference to the accompanying drawings.

[0056] like Figure 1 As shown, this disclosure provides a display substrate, including a substrate and signal lines 30 and an encapsulation structure disposed on the substrate; the signal lines 30 have notches 310 on their sides; the encapsulation structure includes a first inorganic encapsulation layer CVD1 and an organic encapsulation layer (CVD1) sequentially stacked on the substrate in a direction away from the substrate. Figure 1 (not shown in the image) and a second inorganic encapsulation layer CVD2, wherein the first inorganic encapsulation layer CVD1 fills the recess 310, and the organic encapsulation layer is not filled in the recess 310.

[0057] In the aforementioned display substrate, since there is no organic encapsulation layer at the notch 310, stress concentration occurs in the first inorganic encapsulation layer CVD1 and the second inorganic encapsulation layer CVD2 near the notch 310. Furthermore, the surface of the second inorganic encapsulation layer CVD2 facing away from the substrate is not flat enough, making it prone to breakage near the notch 310 and providing a channel for the intrusion of moisture and oxygen. Consequently, during the reliability testing of the display substrate, GDSX (grown black dots) defects are likely to appear in the display area of ​​the display substrate.

[0058] Please see Figure 2 , Figure 3 , Figure 6 , Figure 8 and Figure 11 This disclosure provides a display substrate, including: a display area 10 and a peripheral area 20 surrounding the display area 10; the display substrate further includes:

[0059] Signal line 30 (including such as Figure 3 The signal line 30 includes a first portion located in the peripheral region 20, comprising the positive power line VDD and the negative power line VSS.

[0060] A plurality of base spacers 41, at least a portion of which are located in the display area 10;

[0061] Multiple compensating spacers 40 are disposed in a first peripheral region 201, the orthographic projection of the first peripheral region 201 on the substrate of the display substrate at least partially overlaps with the orthographic projection of the side of the first portion on the substrate; the layout density of the compensating spacers 40 is greater than the layout density of the base spacers 41.

[0062] The encapsulation structure includes an organic encapsulation layer IJP and an inorganic encapsulation layer (e.g., a first inorganic encapsulation layer CVD1) stacked together, wherein the organic encapsulation layer IJP and the inorganic encapsulation layer cover the plurality of compensation spacers 40.

[0063] For example, the peripheral area includes a bonding area, and the orthographic projection of the first portion on the substrate is located between the orthographic projection of the display area on the substrate and the orthographic projection of the bonding area on the substrate.

[0064] like Figure 6 and Figure 8 As shown, at least a portion of the plurality of base spacers 41 are located in the display area 10. The layout density of the compensation spacers 40 is greater than the layout density of the base spacers 41.

[0065] For example, a portion of the plurality of base spacers 41 is located in the display area 10, and another portion of the base spacers 41 is located in the peripheral area 20. For example, another portion of the base spacers 41 is located between the compensation spacer 40 and the display area 10.

[0066] For example, both the base spacer 41 and the compensation spacer 40 can provide support.

[0067] For example, the layout density of the compensation spacer 40 is greater than or equal to twice the layout density of the base spacer 41.

[0068] The above-mentioned arrangement of the layout density of the compensation spacer 40 is greater than that of the layout density of the base spacer 41, which is beneficial for introducing organic encapsulation material into the area where the compensation spacer 40 is located, thereby achieving effective encapsulation of the area where the compensation spacer 40 is located.

[0069] For example, the compensating spacer 40 is distributed in the peripheral area 20.

[0070] For example, the orthographic projection of the first peripheral region 201 on the substrate is located between the orthographic projection of the display region on the substrate and the orthographic projection of the bonding region on the substrate.

[0071] For example, the compensation spacer 40 serves the same function as a conventional support spacer.

[0072] For example, the compensation spacer 40 is columnar.

[0073] For example, the display substrate includes: an active layer, a first gate insulating layer, a first gate metal layer, a second gate insulating layer, a second gate metal layer, an interlayer insulating layer, a first source / drain metal layer, a first planarization layer, a second source / drain metal layer, a second planarization layer, an anode layer, a pixel defining layer, a light-emitting functional layer, a cathode, and a packaging structure, which are sequentially stacked in a direction away from the substrate.

[0074] For example, the display substrate does not include a passivation layer.

[0075] For example, the encapsulation structure includes an organic encapsulation layer IJP and an inorganic encapsulation layer stacked together. The inorganic encapsulation layer includes a first inorganic encapsulation layer CVD1 and a second inorganic encapsulation layer CVD2. The first inorganic encapsulation layer CVD1 is located between the organic encapsulation layer IJP and the substrate, and the second inorganic encapsulation layer CVD2 is located on the side of the organic encapsulation layer IJP facing away from the substrate.

[0076] As can be seen from the specific structure of the display substrate, in the display substrate provided in this embodiment, a plurality of compensating spacers 40 are provided in the first peripheral region 201, and the orthographic projection of the first peripheral region 201 on the substrate of the display substrate is at least partially overlapping with the orthographic projection of the side of the first part on the substrate. In this way, the plurality of compensating spacers 40 can guide the liquid organic encapsulation material to the side of the first part, which not only helps to improve the flatness of the subsequently formed inorganic encapsulation material on the side of the first part, but also avoids direct contact between the inorganic encapsulation layers above and below the organic encapsulation layer IJP on the side of the first part, effectively dispersing the stress of the encapsulation structure near the side of the first part. Therefore, in the display substrate provided in this embodiment, the encapsulation structure has a better encapsulation edge morphology on the side facing away from the substrate, reducing the risk of breakage of the encapsulation structure near the side of the first part, thereby effectively reducing the risk of GDSX defects in the display substrate.

[0077] Moreover, in the display substrate provided in this embodiment, the liquid organic encapsulation material is introduced to the side of the first part through the compensation spacer 40, without increasing the amount of liquid organic encapsulation material, thereby effectively preventing the organic encapsulation material from overflowing to the outside of the barrier structure around the display substrate.

[0078] Please see Figure 2 , Figure 3 , Figure 6 and Figure 8 In some embodiments, the first portion includes a first target portion 31, the side of which has a notch 310; a portion of the inorganic encapsulation layer (e.g., the first inorganic encapsulation layer CVD1) and a portion of the organic encapsulation layer IJP are both filled in the notch 310;

[0079] The orthographic projection of the first peripheral region 201 onto the substrate of the display substrate is located on the side of the orthographic projection of the first target portion 31 onto the substrate that is closer to the display area 10.

[0080] like Figure 2As shown, for example, the signal line 30 is made of stacked titanium metal layer (Ti), aluminum metal layer (Al) and titanium metal layer (Ti). After the signal line 30 is made, during the etching process to form the anode layer, the aluminum metal layer in the middle of the signal line 30 will be laterally etched, so that the boundary of the two titanium metal layers will exceed the boundary of the aluminum metal layer on the side of the signal line 30, forming a notch 310 on the side of the signal line 30.

[0081] For example, the orthographic projection of the plurality of compensation spacers 40 onto the substrate of the display substrate is located within a predetermined periphery of the orthographic projection of the side surface of the first target portion 31 onto the substrate. For example, the predetermined periphery includes a circular region with radius R centered at the center point of the orthographic projection of the side surface of the first target portion 31 onto the substrate. R is greater than or equal to 500 micrometers.

[0082] For example, the orthographic projections of the plurality of compensation spacers 40 onto the substrate of the display substrate are arranged in an array around the orthographic projections of the side of the first target portion 31 onto the substrate.

[0083] For example, the first inorganic encapsulation layer CVD1 and the organic encapsulation layer IJP fill the notch 310.

[0084] For example, the orthographic projection of the first peripheral region 201 onto the substrate of the display substrate at least partially overlaps with the orthographic projection of the first target portion 31 onto the substrate.

[0085] For example, the first target portion is in direct contact with the packaging structure.

[0086] In the display substrate provided in the above embodiments, a plurality of compensating spacers 40 are provided around the side recess 310 of the first target portion 31. These compensating spacers 40 have a drainage function, which helps to improve the fluidity of the liquid organic encapsulation material, introduces the liquid organic encapsulation material into the recess 310, and fills the recess 310. This avoids the subsequent inorganic encapsulation layer filling the recess 310, which not only helps to improve the flatness of the subsequently formed inorganic encapsulation material, but also avoids direct contact between the inorganic encapsulation layers above and below the organic encapsulation layer IJP near the recess 310, effectively dispersing the stress of the encapsulation structure near the recess 310. Therefore, in the display substrate provided in the above embodiments, the encapsulation structure is guaranteed to have a better encapsulation edge morphology on the side facing away from the substrate, reducing the risk of the encapsulation structure breaking near the recess 310, thereby effectively reducing the risk of GDSX defects in the display substrate.

[0087] Moreover, in the display substrate provided in the above embodiments, the liquid organic encapsulation material is introduced into the recess 310 through the compensation spacer 40, without increasing the amount of liquid organic encapsulation material, thereby effectively preventing the organic encapsulation material from overflowing to the outside of the barrier structure around the display substrate.

[0088] like Figure 3 , Figure 6 and Figure 8 As shown, in some embodiments, the first part further includes:

[0089] The second target portion 32 is located in the peripheral region 20, and at least a portion of the second target portion 32 is located between the first target portion 31 and the display region 10; the orthographic projection of the first peripheral region 201 on the substrate of the display substrate at least partially overlaps with the orthographic projection of the second target portion on the substrate.

[0090] For example, the orthographic projection of the first peripheral region 201 onto the substrate of the display substrate covers the orthographic projection of the second target portion onto the substrate.

[0091] For example, the orthographic projection of the plurality of compensation spacers 40 on the substrate is also located around the orthographic projection of the second target portion 32 on the substrate.

[0092] For example, the side of the second target portion 32 also has a notch.

[0093] For example, the second target portion 32 is coupled to the first target portion 31.

[0094] For example, the orthographic projection of the plurality of compensation spacers 40 onto the substrate of the display substrate is located within a predetermined periphery of the orthographic projection of the side surface of the second target portion 32 onto the substrate. For example, the predetermined range includes a circular area with radius R centered at the center point of the orthographic projection of the side surface of the second target portion 32 onto the substrate. R is greater than or equal to 500 micrometers.

[0095] For example, the orthographic projection of the plurality of compensation spacers 40 onto the substrate of the display substrate is arranged in an array around the orthographic projection of the side of the second target portion 32 onto the substrate.

[0096] The above-described configuration ensures that the orthographic projection of the first peripheral region 201 onto the substrate of the display substrate at least partially overlaps with the orthographic projection of the second target portion onto the substrate. This allows the orthographic projections of the plurality of compensating spacers 40 onto the substrate to be located around the orthographic projection of the second target portion 32 onto the substrate. This enables the compensating spacers 40 to guide the organic encapsulation material to the area where the second target portion 32 is located, and further to the area where the first target portion 31 is located. Therefore, the display substrate provided in the above embodiment more effectively introduces liquid organic encapsulation material into the recess 310, filling the recess 310 completely, thereby more effectively reducing the risk of GDSX defects in the display substrate.

[0097] like Figure 6 and Figure 8 As shown, in some embodiments, the display substrate further includes:

[0098] A pixel-defining layer and a planarization layer are stacked together, wherein the planarization layer is located between the pixel-defining layer and the substrate; Figure 6 and Figure 8 The diagram illustrates the boundary of the pixel-defining layer (PDL) and the boundary of the planarization layer (PLN2). Figure 6 and Figure 8 In this configuration, a pixel defining layer is disposed between the boundary PDL of the pixel defining layer and the display area 10, and a second flattening layer is disposed between the boundary PLN2 of the flattening layer and the display area 10. The pixel defining layer and the second flattening layer may also be disposed at other locations.

[0099] The orthographic projection of the first target portion 31 on the substrate does not overlap with the orthographic projection of the pixel defining layer on the substrate, nor does it overlap with the orthographic projection of the planarization layer on the substrate.

[0100] For example, the signal line 30 includes a first conductive layer and a second conductive layer coupled together, the first conductive layer being located between the substrate and the second conductive layer. For example, the first conductive layer is fabricated using the first source / drain metal layer, and the second conductive layer is fabricated using the second source / drain metal layer. For example, the first conductive layer is covered by the pixel defining layer and the first planarization layer. The second conductive layer includes a first target portion 31 and a second target portion 32.

[0101] It needs to be explained that, Figures 6 to 9 In the diagram, both VDD and VSS illustrate the inclusion of a first conductive layer and a second conductive layer. Figure 6 For example, Figure 6The third sub-pattern includes a first conductive layer and a second conductive layer stacked together. The first conductive layer is darker in color and has a smaller area, and it has an array of square vias. The second conductive layer is lighter in color and has a larger area.

[0102] For example, the side of the first conductive layer also has a notch, but the notch can be covered by the pixel defining layer and the first planarization layer, so it will not affect the flatness of the packaging structure or the stress of the packaging structure.

[0103] For example, the first target portion 31 is not covered by the second planarization layer and the pixel defining layer, and the first target portion 31 is able to contact the encapsulation structure.

[0104] like Figure 6 and Figure 8 As shown, in some embodiments, the orthographic projection of the second target portion 32 on the substrate at least partially overlaps with the orthographic projection of the pixel defining layer on the substrate; and / or at least partially overlaps with the orthographic projection of the planarization layer on the substrate.

[0105] The second target portion 32 and / or the flattening layer can cover at least a portion of the second target portion 32, preventing the notches on the sides of the second target portion 32 from affecting the flatness and stress of the packaging structure.

[0106] like Figure 10 As shown, in some embodiments, the plurality of compensation spacers 40 includes a plurality of first compensation spacers 401 and / or a plurality of second compensation spacers 402, wherein the orthographic projection of the plurality of first compensation spacers 401 on the substrate does not overlap with the orthographic projection of the signal line 30 on the substrate; and the orthographic projection of the plurality of second compensation spacers 402 on the substrate at least partially overlaps with the orthographic projection of the signal line 30 on the substrate.

[0107] The above-mentioned arrangement helps the compensation spacer 40 to better guide the organic encapsulation material to the vicinity of the notch 310 of the signal line 30, and more effectively introduce the liquid organic encapsulation material into the notch 310, filling the notch 310, thereby more effectively reducing the risk of GDSX defects in the display substrate.

[0108] like Figure 6 and Figure 8 As shown, in some embodiments, the surrounding area includes a binding area;

[0109] The display substrate further includes: a first barrier Dam1 and a second barrier Dam2, wherein the first barrier Dam1 surrounds the display area 10 and the second barrier Dam2 surrounds the first barrier Dam1;

[0110] The signal line 30 includes a power line, and the first portion of the power line is projected onto the substrate between the projection of the first retaining wall Dam1 onto the substrate and the projection of the display area 10 onto the substrate; the first portion is close to the bonding area.

[0111] For example, the first barrier Dam1 and the second barrier Dam2 are used to block organic encapsulation material to define the boundary of the organic encapsulation layer IJP on the side of the second barrier Dam2 facing the display area 10.

[0112] For example, the power cord includes a positive power cord and / or a negative power cord.

[0113] The first portion of the power line is positioned so that its orthographic projection on the substrate is located between the orthographic projection of the first barrier Dam1 on the substrate and the orthographic projection of the display area 10 on the substrate, so that the first portion of the power line can be well covered by the organic encapsulation layer IJP.

[0114] In some embodiments, the display substrate further includes scan lines, at least a portion of which are located in the display area, and the scan lines include a portion extending along a first direction;

[0115] The power lines include a positive power line and a negative power line;

[0116] The orthographic projection of the first portion of the positive power line along the first direction on the substrate at least partially overlaps with the orthographic projection of the first peripheral region 201 on the substrate.

[0117] And / or, the orthographic projection of the side of the first portion of the negative power line along the first direction onto the substrate at least partially overlaps with the orthographic projection of the first peripheral region 201 onto the substrate.

[0118] For example, the scan line includes a gate line.

[0119] The above-described configuration allows the compensating spacer 40 to better introduce the organic encapsulation material into the vicinity of the first part of the positive power supply and the first part of the negative power supply, achieving a good encapsulation effect on the first part of the positive power supply and the first part of the negative power supply. This reduces the risk of the encapsulation structure breaking near the first part of the positive power supply and the first part of the negative power supply, and prevents water vapor and oxygen from being transmitted to the display area 10 via the first part of the positive power supply and the first part of the negative power supply.

[0120] like Figure 3 , Figure 4, Figure 6 and Figure 8 As shown, in some embodiments, the signal line 30 includes a positive power line VDD, which includes a first common connection portion VDD1; at least a portion of the first common connection portion VDD1 extends along a first direction, and the first common connection portion VDD1 includes the first target portion 31.

[0121] For example, the display substrate further includes multiple sub-power lines, at least a portion of which is disposed in the display area 10 and is used to provide power signals to each sub-pixel driving circuit in the display area 10. At least a portion of the sub-power lines extends along a second direction, and the multiple sub-power lines are respectively coupled to the first common connection portion VDD1, which is used to transmit positive power signals to each of the sub-power lines.

[0122] For example, the first common connection portion VDD1 includes the first conductive layer and the second conductive layer.

[0123] The above-mentioned configuration of the first common connection portion VDD1 including the first target portion 31 enables the compensation spacer 40 to better introduce the organic encapsulation material into the vicinity of the first common connection portion VDD1, thereby achieving a good encapsulation effect on the first common connection portion VDD1, reducing the risk of the encapsulation structure breaking near the first common connection portion VDD1, and preventing water vapor and oxygen from being transmitted to the display area 10 via the first common connection portion VDD1 as the transmission path.

[0124] like Figure 4 As shown, in some embodiments, the first common connection portion VDD1 includes a first sub-graphic VDD10 to an Nth sub-graphic, where N is greater than or equal to 3. Along a direction away from the display area 10, the first sub-graphic VDD10 to the Nth sub-graphic are arranged sequentially, and the width of the first sub-graphic VDD10 to the Nth sub-graphic gradually narrows in the first direction; the second sub-graphic VDD11 includes the second target portion 32; and the third sub-graphic VDD12 includes the first target portion 31 and the second target portion 32.

[0125] For example, the first sub-pattern VDD10 to the second sub-pattern VDD11 each include the first conductive layer and the second conductive layer. For example, the orthographic projection of the first conductive layer in the first sub-pattern VDD10 onto the substrate at least partially overlaps with the orthographic projection of the second conductive layer in the first sub-pattern VDD10 onto the substrate. For example, the orthographic projection of the first conductive layer in the second sub-pattern VDD11 onto the substrate at least partially overlaps with the orthographic projection of the second conductive layer in the second sub-pattern VDD11 onto the substrate. For example, the orthographic projection of the first conductive layer in the third sub-pattern VDD12 onto the substrate at least partially overlaps with the orthographic projection of the second conductive layer in the third sub-pattern VDD12 onto the substrate.

[0126] For example, the fourth sub-pattern VDD13 to the Nth sub-pattern only include the first conductive layer.

[0127] For example, the width of the first sub-pattern VDD10 to the Nth sub-pattern gradually narrows in the first direction, forming a stepped structure on both sides of the first common connection VDD1. This arrangement not only helps to reduce the resistance of the positive power line VDD, but also reduces the interference between the positive power line VDD and the negative power line VSS, reducing the risk of a short circuit between the positive power line VDD and the negative power line VSS.

[0128] In some embodiments, the orthographic projection of the first sub-pattern VDD10 onto the substrate includes a first layout area; at least a portion of the orthographic projection of the compensation spacer 40 onto the substrate is uniformly distributed in the first layout area.

[0129] The above-mentioned arrangement ensures that at least a portion of the compensating spacer 40 is projected onto the substrate and is evenly distributed in the first layout area. This allows the compensating spacer 40 to better introduce the organic encapsulation material into the first layout area, achieving a good encapsulation effect on the first sub-pattern VDD10. This reduces the risk of the encapsulation structure breaking near the first sub-pattern VDD10 and prevents moisture and oxygen from being transported to the display area 10 via the first sub-pattern VDD10.

[0130] In some embodiments, the orthographic projection of a portion of the base spacer 41 onto the substrate is located in the first layout area, and the layout density of the base spacer 41 in the first layout area is equal to the layout density of the base spacer 41 in the display area 10.

[0131] The above-mentioned basic spacer 41 is positioned on the substrate with its orthogonal projection located in the first layout area. This allows the basic spacer 41 to better introduce organic encapsulation material into the first layout area, achieving a good encapsulation effect on the first sub-pattern VDD10. This reduces the risk of the encapsulation structure breaking near the first sub-pattern VDD10 and prevents water vapor and oxygen from being transported to the display area 10 via the first sub-pattern VDD10.

[0132] like Figure 3 and Figure 4 As shown, in some embodiments, the positive power line VDD further includes: a second common connection portion VDD2, a plurality of conductive connection portions VDD3, and two first input portions VDD4;

[0133] At least a portion of the second common connection portion VDD2 extends along the first direction, and the second common connection portion VDD2 is located on the side of the first common connection portion VDD1 away from the display area 10; the second common connection portion VDD2 and the first common connection portion VDD1 are coupled through the plurality of conductive connection portions VDD3;

[0134] At least a portion of the first incoming line VDD4 extends along a second direction, which intersects with the first direction; the first incoming line VDD4 is located on the side of the second common connection VDD2 away from the display area 10, and the two first incoming line VDD4 are respectively coupled to the second common connection VDD2.

[0135] For example, the second common connection portion VDD2 and the first common connection portion VDD1 are disposed opposite to each other along the second direction, at least a portion of the conductive connection portion VDD3 extends along the second direction, the second common connection portion VDD2 and the first common connection portion VDD1 are coupled through the plurality of conductive connection portions VDD3, and the plurality of conductive connection portions VDD3 are disposed at intervals along the second direction.

[0136] For example, the conductive connection portion VDD3 includes only the first conductive layer.

[0137] For example, the first direction includes a horizontal direction, and the second direction includes a vertical direction.

[0138] For example, the two first input sections VDD4 are coupled one-to-one with the two ends of the second common connection section VDD2.

[0139] Setting the positive power line VDD to the above structure helps to reduce the resistance of the positive power line VDD.

[0140] like Figure 3, Figure 6 and Figure 8 As shown, in some embodiments, the signal line 30 further includes a negative power line VSS, which includes a surrounding portion VSS1 and two second input portions VSS2; the surrounding portion VSS1 partially surrounds the display area 10, and the two ends of the surrounding portion VSS1 are coupled to the two second input portions VSS2 in a one-to-one correspondence; at least a portion of the second input portion VSS2 extends along the second direction; the end of the surrounding portion VSS1 includes a first target portion 31 and a second target portion 32.

[0141] For example, the surrounding portion VSS1 partially surrounds the display area 10, and the opening of the surrounding portion VSS1 faces the location of the driving chip on the display substrate. The surrounding portion VSS1 is coupled to the cathode in the display substrate and is used to transmit a negative power signal to the cathode.

[0142] For example, at least a portion of the second input line VSS2 extends along the second direction, the two ends of the surrounding portion VSS1 are coupled to the two second input lines VSS2 in a one-to-one correspondence, and the two second input lines VSS2 are respectively coupled to the driving chip included in the display substrate and receive the negative power supply signal provided by the driving chip.

[0143] For example, the surrounding portion VSS1 includes both the first conductive layer and the second conductive layer. For example, the second inlet portion VSS2 includes only the first conductive layer.

[0144] The above-mentioned configuration of the end of the surrounding portion VSS1 includes the first target portion 31 and the second target portion 32, so that the compensation spacer 40 can better introduce the organic hair encapsulation material to the vicinity of the end of the surrounding portion VSS1, thereby achieving a good encapsulation effect on the end of the surrounding portion VSS1, reducing the risk of the encapsulation structure breaking near the end of the surrounding portion VSS1, and preventing water vapor and oxygen from being transmitted to the display area 10 via the end of the surrounding portion VSS1.

[0145] like Figure 6 and Figure 8 As shown, in some embodiments, the display substrate further includes: a first barrier Dam1 and a second barrier Dam2, wherein the first barrier Dam1 surrounds the display area 10 and the second barrier Dam2 surrounds the first barrier Dam1.

[0146] The orthographic projection of the first target portion 31 on the substrate and the orthographic projection of the second target portion 32 on the substrate are both located between the orthographic projection of the first retaining wall Dam1 on the substrate and the orthographic projection of the display area 10 on the substrate.

[0147] For example, the first barrier Dam1 and the second barrier Dam2 are used to block organic encapsulation material to define the boundary of the organic encapsulation layer IJP on the side of the second barrier Dam2 facing the display area 10.

[0148] The above-mentioned arrangement ensures that the orthographic projection of the first target portion 31 on the substrate and the orthographic projection of the second target portion 32 on the substrate are both located between the orthographic projection of the first barrier wall Dam1 on the substrate and the orthographic projection of the display area 10 on the substrate, so that both the first target portion 31 and the second target portion 32 can be well covered by the organic encapsulation layer IJP.

[0149] like Figures 6 to 9 As shown, in some embodiments, the display substrate further includes: a first barrier Dam1 and a second barrier Dam2, wherein the first barrier Dam1 surrounds the display area 10 and the second barrier Dam2 surrounds the first barrier Dam1.

[0150] Along the first direction, there is a first gap region 50 between the orthographic projection of the first common connection portion VDD1 on the substrate and the orthographic projection of the end of the surrounding portion VSS1 on the substrate. The first gap region 50 is located between the orthographic projection of the first retaining wall Dam1 on the substrate and the orthographic projection of the display area 10 on the substrate. At least a portion of the orthographic projection of the compensating spacer 40 on the substrate is evenly distributed in the first gap region 50.

[0151] For example, the first target portion 31 and the second target portion 32 are located around the first interval region 50.

[0152] The above-mentioned arrangement ensures that at least a portion of the compensating spacer 40 is projected onto the substrate and is evenly distributed in the first interval region 50. This allows the compensating spacer 40 to better introduce the organic encapsulation material into the first interval region 50, achieving a good encapsulation effect on the first interval region 50 and the first target portion 31 and the second target portion 32 near the first interval region 50. This reduces the risk of the encapsulation structure breaking near the first interval region 50 and prevents moisture and oxygen from being transported to the display area 10 via the first interval region 50.

[0153] like Figure 5As shown, in some embodiments, the orthographic projection of the first common connection portion VDD1 on the substrate forms a first layout area 51, which is located between the orthographic projection of the first retaining wall Dam1 on the substrate and the orthographic projection of the display area 10 on the substrate; at least a portion of the orthographic projection of the compensation spacer 40 on the substrate is evenly distributed in the first layout area 51.

[0154] For example, the orthographic projection of the second sub-graphic VDD11 onto the substrate and the orthographic projection of at least a portion of the third sub-graphic VDD12 onto the substrate form the first layout area 51.

[0155] The above-mentioned arrangement ensures that at least a portion of the compensating spacer 40 is projected onto the substrate and evenly distributed in the first layout area 51. This allows the compensating spacer 40 to better introduce the organic encapsulation material to at least a portion of the locations of the second sub-pattern VDD11 and the third sub-pattern VDD12, achieving a good encapsulation effect on the second sub-pattern VDD11 and the third sub-pattern VDD12. This reduces the risk of the encapsulation structure breaking near the second sub-pattern VDD11 and the third sub-pattern VDD12, and prevents moisture and oxygen from being transported to the display area 10 via the second sub-pattern VDD11 and the third sub-pattern VDD12 as the transmission path.

[0156] like Figure 6 and Figure 8 As shown, in some embodiments, the orthographic projection of a portion of the compensation spacer 40 on the substrate at least partially overlaps with the orthographic projection of the end of the circumferential portion VSS1 on the substrate.

[0157] The above method enables the compensation spacer 40 to better introduce the organic encapsulation material to the end of the surrounding portion VSS1, achieving a good encapsulation effect on the end of the surrounding portion VSS1, reducing the risk of the encapsulation structure breaking near the end of the surrounding portion VSS1, and preventing water vapor and oxygen from being transmitted to the display area 10 via the end of the surrounding portion VSS1.

[0158] like Figures 6 to 9As shown, in some embodiments, at least a portion of the orthographic projection of the first common connection portion VDD1 on the substrate is located between the orthographic projection of the end of the surrounding portion VSS1 on the substrate and the orthographic projection of the display area 10 on the substrate. Along the second direction, at least a portion of the orthographic projection of the first common connection portion VDD1 on the substrate and the orthographic projection of the end of the surrounding portion VSS1 on the substrate have a second gap region 52; a portion of the orthographic projection of the compensation spacer 40 on the substrate is located in the second gap region 52.

[0159] For example, at least a portion of the orthographic projection of the first sub-graphic VDD10 included in the first common connection portion VDD1 onto the substrate is located between the orthographic projection of the surrounding portion VSS1 onto the substrate and the orthographic projection of the display area 10 onto the substrate.

[0160] For example, at least a portion of the orthographic projection of the first sub-pattern VDD10 onto the substrate and the orthographic projection of the end of the surrounding portion VSS1 onto the substrate have a second gap region 52.

[0161] The above-mentioned compensation spacer 40 is projected onto the substrate in the second interval region 52, which allows the compensation spacer 40 to better introduce the organic encapsulation material into the second interval region 52, thereby achieving a good encapsulation effect on the second interval region 52, reducing the risk of the encapsulation structure breaking near the second interval region 52, and preventing water vapor and oxygen from being transported to the display area 10 via the second interval region 52 as a transmission path.

[0162] like Figure 2 As shown, in some embodiments, the encapsulation structure includes a first inorganic encapsulation layer CVD1, an organic encapsulation layer IJP, and a second inorganic encapsulation layer CVD2, which are sequentially stacked along a direction away from the substrate; a portion of the first inorganic encapsulation layer CVD1 and a portion of the organic encapsulation layer IJP are filled in the recess 310, while the second inorganic encapsulation layer CVD2 is not filled in the recess 310.

[0163] For example, a portion of the first inorganic encapsulation layer CVD1 and a portion of the organic encapsulation layer IJP can fill the notch 310.

[0164] The above configuration avoids the second inorganic encapsulation layer CVD2 filling the recess 310, which helps to improve the flatness of the second inorganic encapsulation material, thereby reducing the risk of the second inorganic encapsulation layer CVD2 breaking and reducing the risk of GDSX defects in the display substrate.

[0165] In some embodiments, the compensation spacer 40 is disposed in the same layer and with the same material as the pixel defining layer or the base spacer 41.

[0166] For example, both the base spacer 41 and the compensation spacer 40 can be formed with the pixel defining layer in a single patterning process.

[0167] For example, the compensation spacer 40 and the base spacer 41 may also be made of other organic or inorganic materials.

[0168] The above-mentioned arrangement of the compensation spacer 40 and the pixel defining layer or the base spacer 41 in the same layer and with the same material enables the base spacer 41, the compensation spacer 40 and the pixel defining layer to be formed in the same patterning process, which helps to simplify the manufacturing process of the display substrate and reduce the manufacturing cost of the display substrate.

[0169] In some embodiments, the display substrate further includes a first source / drain metal layer and a second source / drain metal layer, wherein the first source / drain metal layer is located between the second source / drain metal layer and the substrate; a portion of the signal line 30 is disposed in the same layer and with the same material as the first source / drain metal layer; and another portion of the signal line 30 is disposed in the same layer and with the same material as the second source / drain metal layer.

[0170] For example, there is no passivation layer between the second source / drain metal layer and the pixel defining layer.

[0171] For example, the second conductive layer of the signal line 30 is disposed in the same layer and with the same material as the second source / drain metal layer.

[0172] The above configuration eliminates the need for a passivation layer between the second source / drain metal layer and the pixel delimiting layer, reducing the masking process required to create the passivation layer, effectively simplifying the manufacturing process of the display substrate, and lowering the manufacturing cost of the display substrate.

[0173] This disclosure also provides a display device, including the display substrate provided in the above embodiments.

[0174] In the display substrate provided in the above embodiments, a plurality of compensating spacers 40 are provided in the first peripheral region 201, and the orthographic projection of the first peripheral region 201 on the substrate of the display substrate is at least partially overlapping with the orthographic projection of the side of the first part on the substrate. In this way, the plurality of compensating spacers 40 can guide the liquid organic encapsulation material to the side of the first part, which not only improves the flatness of the subsequently formed inorganic encapsulation material on the side of the first part, but also avoids direct contact between the inorganic encapsulation layers above and below the organic encapsulation layer IJP on the side of the first part, effectively dispersing the stress of the encapsulation structure near the side of the first part. Therefore, in the display substrate provided in the above embodiments, the encapsulation structure has a better encapsulation edge morphology on the side facing away from the substrate, reducing the risk of breakage of the encapsulation structure near the side of the first part, thereby effectively reducing the risk of GDSX defects in the display substrate.

[0175] Moreover, in the display substrate provided in the above embodiments, the liquid organic encapsulation material is introduced into the side of the first part through the compensation spacer 40, without increasing the amount of liquid organic encapsulation material, thereby effectively preventing the organic encapsulation material from overflowing to the outside of the barrier structure around the display substrate.

[0176] Therefore, the display device provided in this disclosure, when including the above-described display substrate, also has the above-described beneficial effects, which will not be repeated here.

[0177] It should be noted that the display device can be any product or component with display function, such as a television, monitor, digital photo frame, mobile phone, or tablet computer. The display device also includes flexible circuit boards, printed circuit boards, and backplanes.

[0178] It should be noted that, in the embodiments of this disclosure, "same layer" can refer to film layers located on the same structural layer. Alternatively, for example, film layers located on the same layer can be layer structures formed by using the same film deposition process to form a specific pattern, and then patterning the film layer using the same photomask through a single patterning process. Depending on the specific pattern, the single patterning process may include multiple exposure, development, or etching processes, and the specific pattern in the formed layer structure can be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0179] In the various method embodiments of this disclosure, the sequence numbers of each step are not intended to limit the order of the steps. For those skilled in the art, any changes in the order of the steps are within the scope of protection of this disclosure without any creative effort.

[0180] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the method embodiments are basically similar to the product embodiments, so the description is relatively simple, and the relevant parts can be referred to the description of the product embodiments.

[0181] 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 “connection,” “coupled,” 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.

[0182] It is understandable that when a component such as a layer, film, region, or substrate is referred to as being "above" or "below" another component, the component may be "directly" located "above" or "below" the other component, or there may be intermediate components present.

[0183] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0184] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A display substrate, comprising: A display region and a peripheral region surrounding the display region; The display substrate further comprises: A signal line, the signal line comprising a first portion located at the peripheral region; A plurality of base spacers, at least part of the plurality of base spacers being located at the display region; A plurality of compensation spacers, the plurality of compensation spacers being arranged at a first peripheral region, a projection of the first peripheral region on a base of the display substrate at least partially overlapping with a projection of a side of the first portion on the base; a layout density of the compensation spacers being greater than a layout density of the base spacers; the plurality of compensation spacers being capable of guiding liquid organic encapsulation material into a notch of the side of the first portion; An encapsulation structure, the encapsulation structure comprising an organic encapsulation layer and an inorganic encapsulation layer stacked, the organic encapsulation layer and the inorganic encapsulation layer covering the plurality of compensation spacers; part of the organic encapsulation layer being filled in the notch of the side of the first portion. 2.The display substrate of claim 1, wherein, The first portion comprises a first target portion, a side of the first target portion having a notch; part of the inorganic encapsulation layer and part of the organic encapsulation layer being filled in the notch; The projection of the first peripheral region on the base of the display substrate is located on a side of the projection of the first target portion on the base close to the display region. 3.The display substrate of claim 2, wherein, The first portion further comprises: A second target portion, at least part of the second target portion being located between the first target portion and the display region; the projection of the first peripheral region on the base of the display substrate at least partially overlapping with a projection of the second target portion on the base. 4.The display substrate of claim 3, wherein, The display substrate further comprises: A pixel definition layer and a planarization layer stacked, the planarization layer being located between the pixel definition layer and the base; The projection of the first target portion on the base does not overlap with a projection of the pixel definition layer on the base, and does not overlap with a projection of the planarization layer on the base. 5.The display substrate of claim 4, wherein, The projection of the second target portion on the base at least partially overlaps with the projection of the pixel definition layer on the base; And / or, at least partially overlaps with the projection of the planarization layer on the base. 6.The display substrate of claim 1, wherein, The plurality of compensation spacers comprises a plurality of first compensation spacers and / or a plurality of second compensation spacers, the projection of the plurality of first compensation spacers on the base does not overlap with the projection of the signal line on the base; The projection of the plurality of second compensation spacers on the base at least partially overlaps with the projection of the signal line on the base. 7.The display substrate of claim 1, wherein, The peripheral region comprises a binding region; The display substrate further comprises: a first barrier wall and a second barrier wall, the first barrier wall surrounding the display region, the second barrier wall surrounding the first barrier wall; The signal line comprises a power supply line, the projection of the first portion of the power supply line on the base being located between the projection of the first barrier wall on the base and the projection of the display region on the base; the first portion being close to the binding region. 8.The display substrate of claim 7, wherein, The display substrate further includes a scan line, at least part of the scan line is located in the display area, and the scan line includes a portion extending along a first direction; The power supply line includes a positive power supply line and a negative power supply line; A first portion of the positive power supply line is at least partially overlapped with a projection of the first peripheral area on the substrate in a projection of a side of the first direction on the substrate; And / or, a first portion of the negative power supply line is at least partially overlapped with a projection of the first peripheral area on the substrate in a projection of a side of the first direction on the substrate. 9.The display substrate of claim 3, wherein, The signal line includes a positive power supply line, and the positive power supply line includes a first common connection part; at least part of the first common connection part extends along a first direction, and the first common connection part includes the first target part. 10.The display substrate of claim 9, wherein, The first common connection part includes a first sub-pattern to an Nth sub-pattern, N is greater than or equal to 3, the first sub-pattern to the Nth sub-pattern are arranged in turn in a direction away from the display area, and widths of the first sub-pattern to the Nth sub-pattern in the first direction gradually decrease; a second sub-pattern includes the second target part; A third sub-pattern includes the first target part and the second target part. 11.The display substrate of claim 10, wherein, A projection of the first sub-pattern on the substrate includes a first layout area; and projections of at least part of the compensation spacers on the substrate are uniformly distributed in the first layout area; Or, Projections of part of the basic spacers on the substrate are located in the first layout area, and a layout density of the basic spacers in the first layout area is equal to a layout density of the basic spacers in the display area. 12.The display substrate of claim 9, wherein, The positive power supply line further includes a second common connection part, a plurality of conductive connection parts, and two first wire-in parts; At least part of the second common connection part extends along the first direction, and the second common connection part is located on a side of the first common connection part away from the display area; the second common connection part and the first common connection part are coupled through the plurality of conductive connection parts; At least part of the first wire-in part extends along a second direction intersecting the first direction; the first wire-in part is located on a side of the second common connection part away from the display area, and the two first wire-in parts are respectively coupled to the second common connection part. 13.The display substrate of claim 9, wherein, The signal line further includes a negative power supply line, and the negative power supply line includes a surrounding part and two second wire-in parts; the surrounding part semi-surrounds the display area, two end parts of the surrounding part are respectively coupled to the two second wire-in parts; at least part of the second wire-in part extends along a second direction; and the end parts of the surrounding part include the first target part and the second target part. 14.The display substrate of claim 13, wherein, Projections of part of the compensation spacers on the substrate at least partially overlap with projections of the end parts of the surrounding part on the substrate. 15.The display substrate of claim 13, wherein, The display substrate further includes a first barrier wall and a second barrier wall, the first barrier wall surrounds the display area, and the second barrier wall surrounds the first barrier wall; Along the first direction, a projection of the first common connection portion on the base has a first interval region between a projection of the end of the surround portion on the base and a projection of the display area on the base, and the first interval region is between a projection of the first barrier on the base and a projection of the display area on the base; at least part of a projection of the compensation spacers on the base is uniformly distributed in the first interval region. 16.The display substrate of claim 13, wherein, At least part of a projection of the first common connection portion on the base is between a projection of the end of the surround portion on the base and a projection of the display area on the base along the second direction, and at least part of a projection of the first common connection portion on the base has a second interval region between a projection of the end of the surround portion on the base; part of a projection of the compensation spacers on the base is in the second interval region. 17.The display substrate of claim 2, wherein, The package structure comprises a first inorganic package layer, an organic package layer and a second inorganic package layer which are sequentially stacked in a direction away from the base; part of the first inorganic package layer and part of the organic package layer are filled in the recess, and the second inorganic package layer is not filled in the recess. 18.The display substrate of claim 4, wherein, The compensation spacers are arranged in the same layer and of the same material as the pixel definition layer or the base spacer.

19. The display substrate of claim 1, wherein, The display substrate further comprises a first source-drain metal layer and a second source-drain metal layer, the first source-drain metal layer being between the second source-drain metal layer and the base; part of the signal line is arranged in the same layer and of the same material as the first source-drain metal layer, and another part of the signal line is arranged in the same layer and of the same material as the second source-drain metal layer.

20. A display device comprising the display substrate according to any one of claims 1-19.

Images