Display substrate and touch-control display apparatus

Abstract

Provided in the present disclosure are a display substrate and a touch-control display apparatus. The display substrate comprises: a base substrate; and a functional film layer, which is arranged on the base substrate, wherein the functional film layer can reflect light which is emitted from the outside to the functional film layer. The display substrate further comprises a packaging layer and a shielding layer, wherein the shielding layer is located on the side of the functional film layer that faces away from the base substrate, the packaging layer is located between the shielding layer and the functional film layer, and the orthographic projection of the shielding layer on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

Description

Display substrate and touch display device Technical Field

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

[0002] With the continuous development of display technology, touch display products have been widely used in many fields. Touch display products have both touch and display functions. When a touch display product displays an image, the functions of the touch display product can be controlled by touching the screen of the touch display product.

[0003] Summary of the Invention

[0004] The present disclosure aims to provide a display substrate and a touch display device.

[0005] In order to achieve the above objectives, the present disclosure provides the following technical solutions:

[0006] A first aspect of the present disclosure provides a display substrate, comprising: a base substrate and a functional film layer arranged on the base substrate, wherein the functional film layer is capable of reflecting external light directed toward the functional film layer; the display substrate also includes an encapsulation layer and a shielding layer, wherein the shielding layer is located on the side of the functional film layer facing away from the base substrate, and the encapsulation layer is located between the shielding layer and the functional film layer, and the orthographic projection of the shielding layer on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

[0007] Optionally, the display substrate includes a display area and a frame area surrounding the display area, the frame area includes a bending area, and at least a portion of the functional film layer is located between the bending area and the display area.

[0008] Optionally, the functional film layer includes at least a portion extending along the first direction;

[0009] The blocking layer includes a plurality of first blocking patterns, the first blocking patterns include at least a portion extending along a first direction, the plurality of first blocking patterns are arranged along a second direction, and the second direction intersects with the first direction; the orthographic projection of at least a portion of the first blocking patterns on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

[0010] Optionally, a ratio of a width of the first blocking pattern in a direction perpendicular to its own extension direction to a minimum spacing between adjacent first blocking patterns is greater than or equal to 3:2.

[0011] Optionally, the display substrate further includes a shielding line, and at least a portion of the shielding line is located between two adjacent first shielding patterns.

[0012] Optionally, the minimum distance between the first shielding pattern and the shielding line is greater than or equal to 4 microns.

[0013] Optionally, the minimum distance between the first shielding pattern and the shielding line is equal to 0.4 times the width of the first shielding pattern in a direction perpendicular to its own extension direction.

[0014] Optionally, the functional film layer includes at least a portion extending along the first direction;

[0015] The blocking layer includes a whole second blocking pattern, the second blocking pattern includes a blocking main body and a blocking extension portion coupled to each other, the blocking main body extends along the first direction, and the orthographic projection of the blocking main body on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

[0016] Optionally, the shielding extension portion is reused as a shielding line in the display substrate.

[0017] Optionally, the display substrate further includes an anode layer, the functional film layer and the anode layer are provided in the same layer and with the same material, and the functional film layer serves as a positive power signal bus or a negative power signal bus in the display substrate.

[0018] Optionally, the display substrate further includes an organic layer, and an organic groove is formed on the organic layer;

[0019] The shielding line is located on a side of the organic layer facing away from the base substrate. The shielding line includes a first shielding portion spanning the organic trench. An extension direction of the first shielding portion is perpendicular to an extension direction of a boundary of the organic trench spanned by the first shielding portion.

[0020] Optionally, the organic layer includes a pixel defining layer and a planarization layer, at least a portion of the planarization layer is located between the pixel defining layer and the base substrate; a first organic groove is formed on the pixel defining layer, and a second organic groove is formed on the planarization layer, wherein an orthographic projection of the first organic groove on the base substrate at least partially overlaps with an orthographic projection of the second organic groove on the base substrate;

[0021] An extending direction of the first shielding portion is perpendicular to an extending direction of a boundary of the first organic trench that the first shielding portion crosses, and is also perpendicular to an extending direction of a boundary of the second organic trench that the first shielding portion crosses.

[0022] Optionally, the display substrate further includes: a plurality of touch signal lines, each of the touch signal lines including a first touch portion spanning the organic groove, wherein an extension direction of the first touch portion is perpendicular to an extension direction of a boundary of the organic groove spanned by the first touch portion.

[0023] Optionally, the display substrate further includes a plurality of first dummy patterns arranged along the first direction, the first dummy patterns extending along the second direction, the first dummy patterns spanning the organic grooves, and the first dummy patterns and the shielding lines are provided in the same layer and material.

[0024] Optionally, the plurality of first virtual graphics are divided into a plurality of first virtual graphics groups, and the plurality of first virtual graphics groups are arranged along a first direction;

[0025] The plurality of touch signal lines are divided into a plurality of touch signal line groups, at least part of the touch signal line groups and the first dummy pattern groups are alternately arranged along a first direction; at least part of the shielding line is located between adjacent touch signal line groups and the first dummy pattern groups.

[0026] Optionally, at least a portion of an orthographic projection of the organic groove on the base substrate is located between the bending area and the display area.

[0027] Optionally, the display substrate further includes: a plurality of touch signal lines, the touch signal lines including a first touch portion, a second touch portion, and a third touch portion connected end to end, the first touch portion and the second touch portion being located in the frame area, and the third touch portion being located in the display area;

[0028] The second touch portions included in at least some of the touch signal lines form a winding structure, and the resistances of the plurality of touch signal lines are substantially the same.

[0029] Optionally, the second touch portion includes a first access end, a second access end, and a winding structure, the winding structure being coupled to the first access end and the second access end, respectively, the first access end being coupled to the corresponding first touch portion, and the second access end being coupled to the corresponding third touch portion;

[0030] The first access end portion includes at least a portion extending along the second direction, and the second access end portion includes at least a portion extending along the second direction.

[0031] Optionally, the plurality of touch signal lines include a plurality of second access end portions arranged along the first direction, and a dummy winding structure is provided between at least some adjacent second access end portions among the plurality of second access end portions.

[0032] Optionally, the width of the second access end portion in a direction perpendicular to its own extension direction is three times the width of the winding structure.

[0033] Optionally, the touch signal line and the shielding layer are provided in the same layer and made of the same material.

[0034] Based on the technical solution of the above-mentioned display substrate, a second aspect of the present disclosure provides a touch display device, including the above-mentioned display substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0036] FIG1 is a schematic diagram of the lower frame structure of a display substrate provided by an embodiment of the present disclosure;

[0037] FIG2 is an enlarged schematic diagram of a portion of the structure of portion X1 in FIG1 ;

[0038] FIG3 is an enlarged schematic diagram of another structure adopted at the location of the X1 portion in FIG1 ;

[0039] FIG4 is an enlarged schematic diagram of a portion of the structure of portion X2 in FIG1 ;

[0040] FIG5 is an enlarged schematic diagram of a portion of the structure of portion X3 in FIG1 ;

[0041] FIG6 is an enlarged schematic diagram of a portion of the structure of portion X4 in FIG1 ;

[0042] FIG7 is a first cross-sectional schematic diagram of a display structure portion in a display substrate provided by an embodiment of the present disclosure;

[0043] FIG8 is a second cross-sectional schematic diagram of a display structure portion in a display substrate provided by an embodiment of the present disclosure;

[0044] FIG9 is a schematic top view of the structure of a display substrate provided in an embodiment of the present disclosure;

[0045] FIG10 is a schematic structural diagram of a touch electrode layer included in a touch structure portion of a display substrate provided by an embodiment of the present disclosure;

[0046] FIG11 is a schematic diagram of the circuit structure of a sub-pixel driving circuit in an LTPS mode in a display substrate provided by an embodiment of the present disclosure;

[0047] FIG12 is a schematic diagram of the layout of a sub-pixel driving circuit in an LTPS mode in a display substrate provided by an embodiment of the present disclosure;

[0048] FIG13 is a schematic diagram of the layout of sub-pixels in the LTPS mode in a display substrate provided by an embodiment of the present disclosure;

[0049] FIG14 is a schematic diagram of the circuit structure of a sub-pixel driving circuit in an LTPO mode in a display substrate provided by an embodiment of the present disclosure;

[0050] FIG15 is a schematic diagram of the layout of a sub-pixel driving circuit in an LTPO mode in a display substrate provided by an embodiment of the present disclosure;

[0051] FIG16 is a schematic diagram of the layout of sub-pixels of the LTPO mode in the display substrate provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] In order to further illustrate the display substrate and the touch display device provided by the embodiments of the present disclosure, a detailed description is given below with reference to the accompanying drawings.

[0053] The present disclosure provides a touch display product, which includes a display area and a frame area located around the display area. The frame area includes a functional film layer set at the same layer and material as the anode layer in the display area. The functional film layer can serve as a signal line to realize signal transmission function.

[0054] Due to the limitations of the functional film layer's own materials, when the touch display product is used in an environment with strong light, the functional film layer will reflect the light shining on its surface, causing light leakage in the touch display product and affecting the user experience.

[0055] Please refer to Figures 1 to 3. An embodiment of the present disclosure provides a display substrate, including: a base substrate and a functional film layer 10 arranged on the base substrate, wherein the functional film layer 10 can reflect light from the outside world that is incident on the functional film layer 10; the display substrate also includes an encapsulation layer and a shielding layer 20, wherein the shielding layer 20 is located on the side of the functional film layer 10 that is away from the base substrate, and the encapsulation layer is located between the shielding layer 20 and the functional film layer 10, and the orthographic projection of the shielding layer 20 on the base substrate at least partially overlaps with the orthographic projection of the functional film layer 10 on the base substrate.

[0056] Exemplarily, the functional film layer 10 serves as a positive power signal bus in the display substrate, which can be coupled to the driver chip in the display substrate and the power line located in the display area 30 in the display substrate, respectively, to transmit the positive power signal provided by the driver chip to the power line.

[0057] Exemplarily, the functional film layer 10 serves as a negative power signal bus in the display substrate, which can be coupled to the driving chip in the display substrate and the cathode located in the display area 30 in the display substrate, respectively, to transmit the negative power signal provided by the driving chip to the cathode.

[0058] Exemplarily, the display substrate further includes an encapsulation layer, and the functional film layer 10 is disposed between the encapsulation layer and the base substrate, with the functional film layer 10 being covered by the encapsulation layer. The shielding layer 20 is located on a side of the encapsulation layer that faces away from the functional film layer 10 and away from the base substrate, and the orthographic projection of the shielding layer 20 on the base substrate at least partially overlaps with the orthographic projection of the functional film layer 10 on the base substrate. Exemplarily, the orthographic projection of the shielding layer 20 on the base substrate completely covers the orthographic projection of the functional film layer 10 on the base substrate.

[0059] According to the specific structure of the above-mentioned display substrate, it can be known that in the display substrate provided by the embodiment of the present disclosure, a shielding layer 20 is arranged on the side of the encapsulation layer facing away from the base substrate, and the orthographic projection of the shielding layer 20 on the base substrate is arranged to at least partially overlap with the orthographic projection of the functional film layer 10 on the base substrate, so that when external light is emitted to the functional film layer 10, it can be blocked by the shielding layer 20, thereby avoiding the light emitted to the functional film layer 10 and being reflected by the functional film layer 10, thereby avoiding light leakage in actual application of the display substrate, affecting the user experience.

[0060] As shown in Figures 1 to 3, in some embodiments, the display substrate includes a display area 30 and a frame area 31 surrounding the display area 30, the frame area 31 includes a bending area 310, and at least a portion of the functional film layer 10 is located between the bending area 310 and the display area 30.

[0061] Exemplarily, the bending area 310 is located at the lower frame of the display substrate, and the functional film layer 10 is located at the lower frame of the display substrate, but the present invention is not limited thereto.

[0062] Exemplarily, the functional film layer 10 may also be located on the upper frame, left frame or right frame of the display substrate. When the functional film layer 10 is located on the upper frame, the left frame or the right frame, the shielding layer 20 may also be provided to shield the functional film layer 10 to avoid light leakage caused by reflection of the functional film layer 10.

[0063] As shown in FIG1 and FIG2 , in some embodiments, the functional film layer 10 includes at least a portion extending along a first direction;

[0064] The blocking layer 20 includes a plurality of first blocking patterns 201, the first blocking patterns 201 including at least a portion extending along a first direction, the plurality of first blocking patterns 201 are arranged along a second direction, and the second direction intersects with the first direction; the orthographic projection of at least a portion of the first blocking patterns 201 on the base substrate at least partially overlaps with the orthographic projection of the functional film layer 10 on the base substrate.

[0065] Exemplarily, the first direction includes the horizontal direction, and the second direction includes the vertical direction, but is not limited thereto.

[0066] Exemplarily, the functional film layer 10 includes a plurality of first shielding patterns 201 . The first shielding patterns 201 may be strip-shaped patterns extending along the first direction, but are not limited thereto.

[0067] Exemplarily, the orthographic projection of the first shielding pattern 201 on the base substrate is covered by the orthographic projection of the functional film layer 10 on the base substrate.

[0068] The above-mentioned setting of the shielding layer 20 including the plurality of first shielding patterns 201 can effectively reduce the layout difficulty of the shielding layer 20 while ensuring the shielding effect of the shielding layer 20 .

[0069] In some embodiments, a ratio of a width of the first blocking pattern 201 perpendicular to its own extending direction to a minimum spacing between adjacent first blocking patterns 201 is greater than or equal to 3:2.

[0070] In some embodiments, the width of the first shielding pattern 201 perpendicular to its own extension direction is between 8 microns and 10 microns, including end values. Exemplarily, the width of the first shielding pattern 201 perpendicular to its own extension direction is 9 microns.

[0071] As shown in Figures 1 and 2, in some embodiments, the minimum spacing between adjacent first blocking patterns 201 is between 5 microns and 9 microns, including end values. Exemplarily, the minimum spacing between adjacent first blocking patterns 201 can be 6 microns, 7 microns, or 8 microns.

[0072] Arranging the plurality of first shielding patterns 201 in the above manner can effectively reduce the difficulty of arranging the shielding layer 20 while ensuring the shielding effect of the shielding layer 20 .

[0073] As shown in FIG. 1 and FIG. 2 , in some embodiments, the display substrate further includes a shielding line 40 , and at least a portion of the shielding line 40 is located between two adjacent first shielding patterns 201 .

[0074] Exemplarily, the shielding wire 40 includes a first shielding portion 401 and a second shielding portion 402 coupled together. The first shielding portion 401 includes at least a portion extending along the second direction, and the second shielding portion 402 includes at least a portion extending along the first direction. Exemplarily, the first shielding portion 401 and the second shielding portion 402 are formed as an integral structure, and the second shielding portion 402 is located between two adjacent first shielding patterns 201.

[0075] Exemplarily, the first shielding portion 401 is coupled to a driving chip in the display substrate to receive a ground signal provided by the driving chip.

[0076] Illustratively, the orthographic projection of the shielding wire 40 on the base substrate at least partially overlaps with the orthographic projection of the functional film layer 10 on the base substrate, and the shielding wire 40 and the shielding layer 20 are provided in the same layer and with the same material.

[0077] Exemplarily, the display substrate includes two shielding lines 40 , the two shielding lines 40 are mirror-imaged, and a gap exists between the two second shielding parts 402 included in the two shielding lines 40 .

[0078] The above arrangement of at least a portion of the shielding line 40 being located between two adjacent first shielding patterns 201 can effectively reduce the crosstalk effect between different structures of the display substrate in the frame area 31 .

[0079] As shown in FIG. 1 and FIG. 2 , in some embodiments, the minimum distance between the first shielding pattern and the shielding line is greater than or equal to 4 micrometers.

[0080] As shown in FIG. 1 and FIG. 2 , in some embodiments, the minimum distance between the first blocking pattern and the shielding line is equal to 0.4 times the width of the first blocking pattern in a direction perpendicular to the first blocking pattern's own extension direction.

[0081] Exemplarily, when 0.4 times the width of the first shielding pattern in the direction perpendicular to its own extension is less than 4 microns, the minimum distance between the first shielding pattern and the shielding line is greater than or equal to 4 microns. When 0.4 times the width of the first shielding pattern in the direction perpendicular to its own extension is greater than or equal to 4 microns, the minimum distance between the first shielding pattern and the shielding line is equal to 0.4 times the width of the first shielding pattern in the direction perpendicular to its own extension.

[0082] As shown in Figures 1 and 2, in some embodiments, the minimum spacing between the first shielding pattern 201 and the shielding line 40 is between 4 microns and 6 microns, including end values. Exemplarily, the minimum spacing between the first shielding pattern 201 and the shielding line 40 is 5 microns.

[0083] Arranging the first shielding pattern 201 and the shielding line 40 in the above manner can effectively reduce the layout difficulty of the shielding layer 20 and the shielding layer while ensuring the shielding effect of the shielding layer 20 and the shielding effect of the shielding layer.

[0084] As shown in FIG1 and FIG3 , in some embodiments, the functional film layer 10 includes at least a portion extending along a first direction;

[0085] The shielding layer 20 includes a whole second shielding pattern 202, and the second shielding pattern 202 includes a coupled shielding main body 2021 and a shielding extension 2022. The shielding main body 2021 extends along the first direction, and the orthographic projection of the shielding main body 2021 on the base substrate at least partially overlaps with the orthographic projection of the functional film layer 10 on the base substrate.

[0086] Exemplarily, the shielding main body 2021 and the shielding extension 2022 form an integral structure. The shielding main body 2021 extends along the first direction, and the shielding extension 2022 includes at least a portion extending along the second direction. The second shielding pattern 202 includes two shielding extensions 2022, with the ends of the shielding main body 2021 respectively coupled to the two shielding extensions 2022 in a one-to-one correspondence.

[0087] In the display substrate provided in the above embodiment, by setting the orthographic projection of the shielding main body 2021 on the base substrate to at least partially overlap with the orthographic projection of the functional film layer 10 on the base substrate, the light shielding effect of the shielding layer 20 can be better achieved while reducing the resistance of the shielding layer 20.

[0088] As shown in FIG. 1 and FIG. 3 , in some embodiments, the shielding extension portion 2022 is reused as the shielding line 40 in the display substrate.

[0089] Exemplarily, the shielding extension portion 2022 is coupled to a driving chip included in the display substrate, and receives a ground signal provided by the driving chip.

[0090] Reusing the shielding extension 2022 as the shielding line 40 in the display substrate not only ensures the light-shielding effect of the shielding layer 20, but also prevents the shielding layer 20 from floating and causing crosstalk with other conductive structures. Furthermore, there is no need for a separate shielding line 40 specifically designed for shielding in the display substrate, reducing the layout complexity of the display substrate.

[0091] In some embodiments, the display substrate further includes an anode layer, and the functional film layer 10 is provided in the same layer and material as the anode layer. The functional film layer 10 serves as a positive power signal bus or a negative power signal bus in the display substrate.

[0092] Exemplarily, the anode layer is made of indium tin oxide, and the functional film layer 10 is formed from the same material as the anode layer. The functional film layer 10 and the anode layer can be formed simultaneously in the same patterning process. The functional film layer 10 can serve as a positive power signal bus or a negative power signal bus in the display substrate, but is not limited thereto.

[0093] As shown in FIG1 , FIG4 and FIG5 , in some embodiments, the display substrate further includes an organic layer, and an organic groove 50 is formed on the organic layer;

[0094] The shielding line 40 is located on the side of the organic layer facing away from the base substrate. The shielding line 40 includes a first shielding portion 401 spanning the organic trench 50 . The extension direction of the first shielding portion 401 is perpendicular to the extension direction of the boundary of the organic trench 50 it spans.

[0095] Exemplarily, the organic layer is located between the base substrate and the encapsulation layer. The encapsulation layer includes a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer stacked in sequence. Because the organic trench 50 formed in the organic layer is relatively deep, the organic encapsulation layer is unable to fill the organic trench 50, resulting in a step difference in the area where the organic trench 50 is located, on the surface of the encapsulation layer facing away from the base substrate.

[0096] Exemplarily, the shielding line 40 is located on a side of the encapsulation layer facing away from the base substrate, and the first shielding portion 401 in the shielding line 40 can cross the organic trench 50 .

[0097] In the display substrate provided by the above embodiment, by setting the extension direction of the first shielding part 401 to be perpendicular to the extension direction of the boundary of the organic groove 50 that it crosses, the contact area between the first shielding part 401 and the step-difference surface formed by the organic groove 50 that it crosses can be minimized at the boundary of the organic groove 50 that the first shielding part 401 crosses. Therefore, in the process of forming the first shielding part 401 by adopting the composition process, the residue generated by the first shielding part 401 on the step-difference surface is effectively reduced, thereby reducing the risk of short circuit between the first shielding part 401 and other conductive structures around it.

[0098] In some embodiments, the organic layer includes a pixel defining layer and a planarization layer, at least a portion of the planarization layer is located between the pixel defining layer and the base substrate; a first organic trench is formed on the pixel defining layer, and a second organic trench is formed on the planarization layer, wherein an orthographic projection of the first organic trench on the base substrate at least partially overlaps with an orthographic projection of the second organic trench on the base substrate;

[0099] An extending direction of the first shielding portion 401 is perpendicular to an extending direction of a boundary of the first organic trench that it crosses, and is also perpendicular to an extending direction of a boundary of the second organic trench that it crosses.

[0100] Exemplarily, the total depth of the first organic trench and the second organic trench is between 3 micrometers and 3.5 micrometers, including end points.

[0101] Exemplarily, at least a portion of the planar layer is located between the pixel defining layer and the base substrate, and at least a portion of the anode layer included in the display substrate is located between the pixel defining layer and the planar layer.

[0102] Exemplarily, the orthographic projection of the first organic groove on the base substrate at least partially overlaps with the orthographic projection of the second organic groove on the base substrate, forming a step difference of about 3 microns, which cannot be filled by the organic encapsulation layer.

[0103] In the display substrate provided by the above embodiment, by setting the extension direction of the first shielding portion 401 to be perpendicular to the extension direction of the boundary of the first organic groove it crosses and perpendicular to the extension direction of the boundary of the second organic groove it crosses, the contact area between the first shielding portion 401 and the step-difference surface formed by the first organic groove it crosses and the boundary of the second organic groove it crosses can be minimized, and the contact area between the first shielding portion 401 and the step-difference surface formed by the second organic groove it crosses can be minimized, so that in the process of forming the first shielding portion 401 by adopting a composition process, the residue generated by the first shielding portion 401 on the step-difference surface is effectively reduced, and the risk of short circuit between the first shielding portion 401 and other conductive structures around it is reduced.

[0104] As shown in Figures 1, 4 and 5, in some embodiments, the display substrate further includes: a plurality of touch signal lines 60, the touch signal lines 60 include a first touch portion 601 spanning the organic groove 50, and an extension direction of the first touch portion 601 is perpendicular to an extension direction of a boundary of the organic groove 50 spanned by the first touch portion 601.

[0105] Exemplarily, the touch signal line 60 is located on a side of the packaging layer facing away from the base substrate, and is used to transmit touch signals.

[0106] For example, the touch signal line 60 can extend from the display area 30 of the display substrate to the lower frame area of ​​the display substrate. The first touch portion 601 included in the touch signal line 60 is located in the lower frame area.

[0107] In the display substrate provided by the above embodiment, by setting the extension direction of the first touch portion 601 to be perpendicular to the extension direction of the boundary of the organic groove 50 that it crosses, the contact area between the first touch portion 601 and the step surface formed by the organic groove 50 that it crosses can be minimized at the boundary of the organic groove 50 that the first touch portion 601 crosses. As a result, in the process of forming the touch signal line 60 using a composition process, the residue generated by the first touch portion 601 on the step surface is effectively reduced, thereby reducing the risk of short circuit between the first touch portion 601 and other conductive structures around it.

[0108] As shown in Figures 1, 4 and 5, in some embodiments, the display substrate further includes a plurality of first dummy patterns 70 arranged along the first direction, the first dummy patterns 70 extend along the second direction, the first dummy patterns 70 span the organic grooves 50, and the first dummy patterns 70 are arranged in the same layer and material as the shielding line 40.

[0109] Exemplarily, the first virtual pattern 70, the touch signal line 60, the shielding line 40, and the blocking layer 20 are all set in the same layer and material, and can be formed simultaneously in the same composition process, thereby effectively simplifying the manufacturing process flow of the display substrate and reducing the manufacturing cost of the display substrate.

[0110] In the display substrate provided by the above embodiment, by setting the multiple first virtual patterns 70 to cross the organic groove 50, the contact area between the first virtual patterns 70, the touch signal line 60, the shielding line 40, and the film layer where the blocking layer 20 is located and the underlying film layer can be increased, thereby increasing the bonding strength between the touch signal line 60, the shielding line 40, and the film layer where the blocking layer 20 is located and the underlying film layer, thereby improving the yield of the display substrate.

[0111] As shown in FIG. 1 , in some embodiments, the plurality of first dummy patterns 70 are divided into a plurality of first dummy pattern groups 70 -Z, and the plurality of first dummy pattern groups 70 -Z are arranged along a first direction;

[0112] The multiple touch signal lines 60 are divided into multiple touch signal line groups 60-Z, and at least part of the touch signal line groups 60-Z are alternately arranged with the first virtual graphic group 70-Z along the first direction; at least part of the shielding line 40 is located between adjacent touch signal line groups 60-Z and the first virtual graphic group 70-Z.

[0113] Exemplarily, the plurality of first dummy patterns 70 are divided into a plurality of first dummy pattern groups 70-Z, each of which includes a plurality of first dummy patterns 70 arranged along a first direction. The plurality of touch signal lines 60 are divided into a plurality of touch signal line groups 60-Z, each of which includes a plurality of touch signal lines 60 arranged along the first direction.

[0114] In the display substrate provided by the above embodiment, by arranging at least a portion of the touch signal line group 60-Z and the first virtual graphic group 70-Z alternately along the first direction, and at least a portion of the shielding line 40 being located between the adjacent touch signal line group 60-Z and the first virtual graphic group 70-Z, the shielding line 40 can well shield the interference of the first virtual graphic 70 on the touch signal line 60, thereby ensuring the accuracy of the touch signal transmission by the touch signal line 60.

[0115] As shown in FIG. 1 , in some embodiments, at least a portion of an orthographic projection of the organic groove 50 on the base substrate is located between the bending region 310 and the display area 30 .

[0116] Exemplarily, the display substrate further includes a retaining wall structure 51 , and an orthographic projection of the retaining wall structure 51 on the base substrate is located between an orthographic projection of the organic groove 50 on the base substrate and the display area 30 .

[0117] As shown in FIG1 and FIG6 , in some embodiments, the display substrate further includes: a plurality of touch signal lines 60 , wherein the touch signal lines 60 include a first touch portion 601 , a second touch portion 602 , and a third touch portion 603 connected end to end in sequence, wherein the first touch portion 601 and the second touch portion 602 are located in the frame area 31 , and the third touch portion 603 is located in the display area 30 ;

[0118] The second touch portion 602 included in at least some of the touch signal lines 60 forms a winding structure 6023 , and the resistances of the plurality of touch signal lines 60 are substantially the same.

[0119] The specific structure of the winding structure 6023 is varied. For example, the winding structure 6023 includes a plurality of straight sides 6023a and a plurality of corner parts 6023b, the straight sides 6023a extending along the first direction, the corner parts 6023b extending along the second direction, the plurality of straight sides 6023a being arranged in sequence along the second direction, the plurality of straight sides 6023a being connected end to end in sequence, and the two connected straight sides 6023a being connected via the corner parts 6023b, so that the winding structure 6023 is formed into a bow-shaped structure.

[0120] Illustratively, the winding structures 6023 formed by the second touch portions 602 in the touch signal lines 60 may be the same or different, that is, the lengths of the second touch portions 602 in the touch signal lines 60 may be the same or different.

[0121] For example, by adjusting the winding length of the winding structure 6023 included in the second touch portion 602 , the resistance of the second touch portion 602 can be adjusted, thereby adjusting the resistance of the touch signal line 60 .

[0122] In the display substrate provided by the above embodiment, a winding structure 6023 is formed by setting the second touch portion 602 included in at least part of the touch signal line 60, so that the overall resistance of each touch signal line 60 can be adjusted by adjusting the winding length of the winding structure 6023 included in the second touch portion 602 in each touch signal line 60, thereby achieving that the resistance of the multiple touch signal lines 60 in the display substrate is roughly the same, effectively improving the accuracy of the touch signal transmission of the display substrate.

[0123] The display substrate provided in the above embodiment can be applied to flexible single-layer on cell (FSLOC) watch products, overcoming the problem of insufficient space in the lower frame of FSLOC watch products, which prevents resistance compensation of touch signal lines. The FSLOC watch product can be a self-capacitive touch product.

[0124] As shown in FIG1 and FIG6 , in some embodiments, the second touch portion 602 includes a first access end 6021, a second access end 6022, and a winding structure 6023. The winding structure 6023 is coupled to the first access end 6021 and the second access end 6022, respectively. The first access end 6021 is coupled to the corresponding first touch portion 601, and the second access end 6022 is coupled to the corresponding third touch portion 603.

[0125] The first access end portion 6021 includes at least a portion extending along the second direction, and the second access end portion 6022 includes at least a portion extending along the second direction.

[0126] As shown in FIG. 6 , illustratively, the first access end 6021 , the second access end 6022 and the winding structure 6023 are formed into an integrated structure.

[0127] For example, in each of the touch signal lines 60 , the lengths of the second access ends 6022 of the second touch portions 602 may be the same or different.

[0128] As shown in FIG. 6 , illustratively, the first access end portion 6021 and the second access end portion 6022 belonging to the same touch signal line 60 are staggered along the first direction.

[0129] In the display substrate provided in the above embodiment, by setting the second touch portion 602 to include the first access end 6021, the second access end 6022 and the winding structure 6023, the layout space of the lower frame of the display substrate is better utilized, and the layout difficulty of the touch signal line 60 in the lower frame area is effectively reduced.

[0130] As shown in FIG6 , in some embodiments, the plurality of touch signal lines 60 include a plurality of second access ends 6022 arranged along a first direction, and a dummy winding structure 71 is provided between at least some adjacent second access ends 6022 .

[0131] Exemplarily, the dummy winding structure 71 includes a plurality of second dummy patterns 710 , wherein the second dummy patterns 710 extend along the first direction, and the plurality of second dummy patterns 710 are arranged along the second direction.

[0132] As shown in Figures 1 and 6 , illustratively, the dummy winding structure 71 is insulated from the touch signal line 60. The dummy winding structure 71 and the touch signal line 60 are provided in the same layer and the same material.

[0133] In the display substrate provided by the above embodiment, the provision of the dummy winding structure 71 is beneficial for preventing light leakage from the lower frame region of the display substrate, while better ensuring etching uniformity when forming the touch signal line 60 .

[0134] As shown in FIG. 6 , in some embodiments, the width of the second access end portion 6022 along a direction perpendicular to its own extension direction is three times the width of the winding structure.

[0135] As shown in FIG6 , in some embodiments, the width of the second access end 6022 along a direction perpendicular to its own extension direction is between 8 microns and 12 microns. It should be noted that T21 , T22 , T23 , T24 and T25 shown in FIG6 are the labels of the touch signal lines 60 .

[0136] Exemplarily, the width of the second access end portion 6022 along a direction perpendicular to its own extension direction includes 8 microns, 9 microns, 10 microns, 11 microns and 12 microns, but is not limited thereto.

[0137] Setting the second access end according to the above dimensions is helpful to prevent static electricity accumulation and electrostatic breakdown problems.

[0138] As shown in FIG. 1 , FIG. 2 and FIG. 6 , in some embodiments, the touch signal line 60 and the shielding layer 20 are provided in the same layer and made of the same material.

[0139] Exemplarily, the display substrate includes a touch electrode layer, and the touch electrode layer includes a first conductive layer and a second conductive layer. The first conductive layer is used to form a touch electrode, and the second conductive layer is used to form an electrode connection bridge.

[0140] Exemplarily, the touch signal line 60 and the shielding layer 20 are both provided in the same layer and with the same material as the first conductive layer.

[0141] Exemplarily, the touch signal line 60 and the shielding layer 20 are both provided in the same layer and with the same material as the second conductive layer.

[0142] Exemplarily, the touch signal line 60 and the shielding layer 20 both include a double-layer structure, wherein one layer is provided in the same layer and material as the first conductive layer, and the other layer is provided in the same layer and material as the second conductive layer.

[0143] Exemplarily, the first conductive layer and the second conductive layer both adopt a three-layer stacking structure of Ti / Al / Ti.

[0144] In the display substrate provided by the above embodiment, by setting the touch signal line 60 and the shielding layer 20 in the same layer and material, the touch signal line 60 can be formed simultaneously with the shielding layer 20 in the same patterning process, thereby effectively simplifying the manufacturing process flow of the display substrate and reducing the manufacturing cost of the display substrate.

[0145] As shown in Figure 7, the display substrate includes a display structure portion and a touch structure portion. Exemplarily, the display structure portion includes a stacked light-shielding metal layer SEL, a first insulating layer (not shown), an active layer (not shown), a first gate insulating layer GI1, a first gate metal layer Gate1, a second gate insulating layer GI2, a second gate metal layer Gate2, an interlayer insulating layer ILD, a first source / drain metal layer SD1, a first planarization layer PLN1, an anode layer ANO, a pixel definition layer PDL, a light-emitting functional layer EL, a cathode layer CAT, and an encapsulation layer TFE. The touch structure portion includes a stacked inorganic layer TBU, a second conductive layer (for forming an electrode connection bridge BR), a second insulating layer IN, a first conductive layer (for forming touch electrodes: Rxo, Txc), and a third planarization layer TOC.

[0146] As shown in FIG8 , the display structure may also employ a dual-layer source / drain metal layer structure, namely, the display structure comprises a stacked light-shielding metal layer SEL, a first insulating layer (not shown), an active layer (not shown), a first gate insulating layer GI1, a first gate metal layer Gate1, a second gate insulating layer GI2, a second gate metal layer Gate2, an interlayer insulating layer ILD, a first source / drain metal layer SD1, a first planarizing layer PLN1, a second source / drain metal layer SD2, a second planarizing layer PLN2, an anode layer ANO, a pixel defining layer PDL, a light-emitting functional layer EL, a cathode layer CAT, and an encapsulation layer TFE. The touch structure comprises a stacked inorganic layer TBU, a second conductive layer (for forming an electrode connection bridge BR), a second insulating layer IN, a first conductive layer (for forming touch electrodes: Rxo, Txc), and a third planarizing layer TOC.

[0147] As shown in Figure 9, the display substrate includes a display area 30 and a frame area 31. The touch electrode layer in the touch structure part has an orthographic projection on the base substrate of the display substrate located in the display area. The touch signal line 60 in the touch structure part has an orthographic projection on the base substrate, and the shielding layer 20 has an orthographic projection on the base substrate located in the frame area 31.

[0148] Figure 10 is a top view of a touch electrode layer according to an embodiment of the present disclosure. The orthographic projection of the touch electrode layer shown in Figure 10 on the substrate is located in the display area 30 shown in Figure 9. The touch electrode layer shown in Figure 10 uses self-capacitive touch technology.

[0149] In the display substrate provided by the embodiment of the present disclosure, the display structure part includes multiple sub-pixels, and the sub-pixels include a sub-pixel driving circuit and a light-emitting element coupled to each other. The sub-pixel driving circuit is used to provide a driving signal to the light-emitting element to drive the light-emitting element to emit light, thereby realizing the display function of the display substrate.

[0150] The sub-pixel driving circuit may adopt LTPS and LTPO modes, and these two modes are described below.

[0151] As shown in FIG. 11 to FIG. 13 , the sub-pixel driving circuit adopts the LTPS mode.

[0152] The sub-pixel driving circuit includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7 and a storage capacitor Cst.

[0153] The display substrate includes a power line VDD, a data line DA, a gate line GA, a light emitting control line EM, a first reset line RE1, a second reset line RE2, a first initialization signal line Vinit1, and a second initialization signal line Vinit2.

[0154] The gate of the first transistor T1 is coupled to the corresponding first reset line RE1, the first electrode of the first transistor T1 is coupled to the corresponding first initialization signal line Vinit1, and the second electrode of the first transistor T1 is coupled to the gate of the third transistor T3 (i.e., the first node N1). The gate of the third transistor T3 also serves as the first plate of the storage capacitor Cst, and the second plate of the storage capacitor Cst is coupled to the power line VDD.

[0155] The gate of the second transistor T2 is coupled to the corresponding gate line GA, the first electrode of the second transistor T2 is coupled to the second electrode (i.e., the second node N2) of the third transistor T3 (i.e., the driving transistor), and the second electrode of the second transistor T2 is coupled to the gate of the third transistor T3.

[0156] A gate of the fourth transistor T4 is coupled to the corresponding gate line GA, a first electrode of the fourth transistor T4 is coupled to the corresponding data line DA, and a second electrode of the fourth transistor T4 is coupled to the first electrode of the third transistor T3 (ie, the third node N3).

[0157] A gate of the fifth transistor T5 is coupled to the corresponding light emitting control line EM, a first electrode of the fifth transistor T5 is coupled to the power line VDD, and a second electrode of the fifth transistor T5 is coupled to the first electrode of the third transistor T3.

[0158] The gate of the sixth transistor T6 is coupled to the corresponding light emitting control line EM, the first electrode of the sixth transistor T6 is coupled to the second electrode of the third transistor T3, and the second electrode of the sixth transistor T6 is coupled to the anode of the light emitting element LD (ie, the fourth node N4).

[0159] The gate of the seventh transistor T7 is coupled to the second reset line RE2, the first electrode of the seventh transistor T7 is coupled to the second initialization signal line Vinit2, the second electrode of the seventh transistor T7 is coupled to the anode of the light emitting element LD, and the cathode of the light emitting element LD receives the negative power signal VSS.

[0160] When the sub-pixel driving circuit of the above structure is in operation, each operation cycle includes a first reset period, a writing compensation period, a second reset period and a light emitting period.

[0161] During the first reset period, the reset signal input by the first reset line RE1 is at an effective level, the first transistor T1 is turned on, and the first initialization signal transmitted by the first initialization signal line Vinit1 is input to the gate of the third transistor T3, so that the gate-source voltage Vgs maintained on the third transistor T3 in the previous frame is cleared, thereby resetting the gate of the third transistor T3.

[0162] During the write compensation period, the reset signal is at an inactive level, the first transistor T1 is turned off, the gate scan signal input by the gate line GA is at an active level, the second transistor T2 and the fourth transistor T4 are controlled to be turned on, the data line DA writes a data signal, and the data signal is transmitted to the first electrode of the third transistor T3 through the fourth transistor T4. At the same time, the second transistor T2 and the fourth transistor T4 are turned on, so that the third transistor T3 forms a diode structure. Therefore, the threshold voltage of the third transistor T3 is compensated by the cooperation of the second transistor T2, the third transistor T3 and the fourth transistor T4. When the compensation time is long enough, the gate potential of the third transistor T3 can be controlled to eventually reach Vdata+Vth, where Vdata represents the data signal voltage value and Vth represents the threshold voltage of the third transistor T3.

[0163] During the second reset period, the gate scan signal is at a non-active level, the second transistor T2 and the fourth transistor T4 are both turned off, the reset signal input by the second reset line RE2 (which can be optionally the first reset line coupled to the adjacent next row of sub-pixel driving circuits) is at a valid level, controlling the seventh transistor T7 to be turned on, and inputting the initialization signal input by the second initialization signal line Vinit2 to the anode of the light-emitting element LD, thereby controlling the light-emitting element LD not to emit light.

[0164] During the light-emitting period, the light-emitting control signal written into the light-emitting control line EM is at an effective level, controlling the fifth transistor T5 and the sixth transistor T6 to be turned on, so that the power signal transmitted by the power line VDD is input to the first electrode of the third transistor T3. At the same time, since the gate of the third transistor T3 is maintained at Vdata+Vth, the third transistor T3 is turned on, and the gate-source voltage corresponding to the third transistor T3 is Vdata+Vth-Vdd, where Vdd is the voltage value corresponding to the power signal. The leakage current generated based on the gate-source voltage flows to the anode of the corresponding light-emitting element LD, driving the corresponding light-emitting element LD to emit light.

[0165] As shown in FIG14 to FIG16 , the sub-pixel driving circuit adopts the LTPO mode.

[0166] The sub-pixel driving circuit includes: a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7 and a storage capacitor Cst.

[0167] The display substrate includes a power line VDD, a data line DA, a first gate line GA1, a second gate line GA2, a light emitting control line EM, a first reset line RE1, a first initialization signal line Vinit1, and a second initialization signal line Vinit2.

[0168] The gate of the first transistor T1 is coupled to the corresponding first reset line RE1, the first electrode of the first transistor T1 is coupled to the corresponding first initialization signal line Vinit1, and the second electrode of the first transistor T1 is coupled to the gate of the third transistor T3. The gate of the third transistor T3 is also multiplexed as the first plate of the storage capacitor Cst, and the second plate of the storage capacitor Cst is coupled to the power line VDD.

[0169] A gate of the second transistor T2 is coupled to the corresponding second gate line GA2 , a first electrode of the second transistor T2 is coupled to a second electrode of the third transistor T3 , and a second electrode of the second transistor T2 is coupled to a gate of the third transistor T3 .

[0170] A gate of the fourth transistor T4 is coupled to the corresponding first gate line GA1 , a first electrode of the fourth transistor T4 is coupled to the corresponding data line DA, and a second electrode of the fourth transistor T4 is coupled to the first electrode of the third transistor T3 .

[0171] A gate of the fifth transistor T5 is coupled to the corresponding light emitting control line EM, a first electrode of the fifth transistor T5 is coupled to the power line VDD, and a second electrode of the fifth transistor T5 is coupled to the first electrode of the third transistor T3.

[0172] A gate of the sixth transistor T6 is coupled to the corresponding light emitting control line EM, a first electrode of the sixth transistor T6 is coupled to the second electrode of the third transistor T3 , and a second electrode of the sixth transistor T6 is coupled to the anode of the light emitting element LD.

[0173] The gate of the seventh transistor T7 is coupled to the corresponding first gate line GA1, the first electrode of the seventh transistor T7 is coupled to the second initialization signal line Vinit2, the second electrode of the seventh transistor T7 is coupled to the anode of the light emitting element LD, and the cathode of the light emitting element LD receives the negative power signal VSS.

[0174] An embodiment of the present disclosure further provides a touch display device, comprising the display substrate provided by the above embodiment.

[0175] It should be noted that the touch display device can be any product or component with touch display function, such as a television, monitor, digital photo frame, mobile phone, tablet computer, etc., wherein the touch display device also includes a flexible circuit board, a printed circuit board and a backplane.

[0176] In the display substrate provided by the above embodiment, a shielding layer 20 is arranged on the side of the encapsulation layer facing away from the base substrate, and the orthographic projection of the shielding layer 20 on the base substrate is arranged to at least partially overlap with the orthographic projection of the functional film layer 10 on the base substrate, so that when external light is directed to the functional film layer 10, it can be blocked by the shielding layer 20, thereby preventing the light from being directed to the functional film layer 10 and being reflected by the functional film layer 10, thereby avoiding light leakage in actual application of the display substrate, affecting the user experience.

[0177] In the display substrate provided by the above embodiment, by setting the shielding line 40, and the extension direction of the first shielding part 401 included in the shielding line 40 is perpendicular to the extension direction of the boundary of the organic groove 50 that it crosses, the contact area between the first shielding part 401 and the step-difference surface formed by the organic groove 50 that it crosses can be minimized at the boundary of the organic groove 50 that the first shielding part 401 crosses, so that in the process of forming the first shielding part 401 by adopting the composition process, the residue generated by the first shielding part 401 on the step-difference surface is effectively reduced, and the risk of short circuit between the first shielding part 401 and other conductive structures around it is reduced.

[0178] In the display substrate provided by the above embodiment, a winding structure 6023 is formed by setting the second touch portion 602 included in at least part of the touch signal line 60, so that the overall resistance of each touch signal line 60 can be adjusted by adjusting the winding length of the winding structure 6023 included in the second touch portion 602 in each touch signal line 60, thereby achieving that the resistance of the multiple touch signal lines 60 in the display substrate is roughly the same, effectively improving the accuracy of the touch signal transmission of the display substrate.

[0179] Therefore, the touch display device provided by the embodiment of the present disclosure also has the above-mentioned beneficial effects when including the above-mentioned display substrate, which will not be described in detail here.

[0180] It should be noted that the signal line extends along a certain direction means that: the signal line includes a main part and a secondary part connected to the main part, the main part is a line, a line segment or a strip-shaped body, the main part extends along a certain direction, and the length of the main part extended along the certain direction is greater than the length of the secondary part extended along other directions.

[0181] It should be noted that the "same layer" in the embodiment of the present disclosure may refer to a film layer on the same structural layer. Or, for example, a film layer in the same layer may be a film layer formed by using the same film forming process to form a specific pattern, and then patterning the film layer using the same mask through a single composition process to form a layer structure. Depending on the specific pattern, a single composition process may include multiple exposure, development or etching processes, and the specific pattern in the formed layer structure may be continuous or discontinuous. These specific patterns may also be at different heights or have different thicknesses.

[0182] In the various method embodiments of the present disclosure, the serial numbers of the steps cannot be used to limit the order of the steps. For ordinary technicians in this field, without paying any creative work, changes to the order of the steps are also within the scope of protection of the present disclosure.

[0183] It should be noted that the various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences from other embodiments. In particular, the method embodiments are described briefly because they are generally similar to the product embodiments. For relevant parts, refer to the description of the product embodiments.

[0184] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect", "couple" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0185] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being “on” or “under” another element, it can be “directly on” or “under” the other element or intervening elements may be present.

[0186] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0187] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A display substrate, comprising: A base substrate and a functional film layer disposed on the base substrate, wherein the functional film layer can reflect light emitted from the outside to the functional film layer; The display substrate also includes an encapsulation layer and a shielding layer, the shielding layer is located on the side of the functional film layer facing away from the base substrate, the encapsulation layer is located between the shielding layer and the functional film layer, and the orthographic projection of the shielding layer on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

2. The display substrate according to claim 1, wherein: The display substrate includes a display area and a frame area surrounding the display area, the frame area includes a bending area, and at least a portion of the functional film layer is located between the bending area and the display area.

3. The display substrate according to claim 2, wherein: The functional film layer includes at least a portion extending along a first direction; The shielding layer includes a plurality of first shielding patterns, the first shielding patterns include at least a portion extending along a first direction, the plurality of first shielding patterns are arranged along a second direction, and the second direction intersects the first direction; At least a portion of the orthographic projection of the first shielding pattern on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

4. The display substrate according to claim 3, wherein: The ratio of the width of the first shielding pattern in a direction perpendicular to its own extension direction to the minimum spacing between adjacent first shielding patterns is greater than or equal to 3:

2.

5. The display substrate according to claim 3, wherein: The display substrate further includes a shielding line, at least a portion of which is located between two adjacent first shielding patterns.

6. The display substrate according to claim 5, wherein: The minimum distance between the first shielding pattern and the shielding line is greater than or equal to 4 microns.

7. The display substrate according to claim 5, wherein: The minimum distance between the first shielding pattern and the shielding line is equal to 0.4 times the width of the first shielding pattern in a direction perpendicular to the first shielding pattern's own extension direction.

8. The display substrate according to claim 2, wherein: The functional film layer includes at least a portion extending along a first direction; The shielding layer includes a whole second shielding pattern, the second shielding pattern includes a coupled shielding main body and a shielding extension part, the shielding main body extends along the first direction, and the orthographic projection of the shielding main body on the base substrate at least partially overlaps with the orthographic projection of the functional film layer on the base substrate.

9. The display substrate according to claim 8, wherein: The shielding extension portion is reused as a shielding line in the display substrate.

10. The display substrate according to any one of claims 1 to 9, wherein: The display substrate further comprises an anode layer. The functional film layer and the anode layer are provided in the same layer and with the same material. The functional film layer serves as a positive power signal bus or a negative power signal bus in the display substrate.

11. The display substrate according to claim 6 or 9, wherein: The display substrate further comprises an organic layer, and an organic groove is formed on the organic layer; The shielding line is located on a side of the organic layer facing away from the base substrate. The shielding line includes a first shielding portion spanning the organic groove. An extension direction of the first shielding portion is perpendicular to an extension direction of a boundary of the organic groove spanned by the first shielding portion.

12. The display substrate according to claim 11, wherein: The organic layer includes a pixel defining layer and a planar layer, at least a portion of the planar layer is located between the pixel defining layer and the base substrate; a first organic groove is formed on the pixel defining layer, and a second organic groove is formed on the planar layer, wherein an orthographic projection of the first organic groove on the base substrate at least partially overlaps with an orthographic projection of the second organic groove on the base substrate; An extending direction of the first shielding portion is perpendicular to an extending direction of a boundary of the first organic trench crossed by the first shielding portion, and is perpendicular to an extending direction of a boundary of the second organic trench crossed by the first shielding portion.

13. The display substrate according to claim 11, wherein: The display substrate further includes: a plurality of touch signal lines, each of which includes a first touch portion spanning across the organic groove, and an extension direction of the first touch portion is perpendicular to an extension direction of a boundary of the organic groove spanned by the first touch portion.

14. The display substrate according to claim 13, wherein: The display substrate further includes a plurality of first dummy patterns arranged along the first direction, the first dummy patterns extending along the second direction, the first dummy patterns spanning the organic grooves, and the first dummy patterns and the shielding lines are provided in the same layer and material.

15. The display substrate according to claim 14, wherein: The plurality of first virtual graphics are divided into a plurality of first virtual graphics groups, and the plurality of first virtual graphics groups are arranged along a first direction; The plurality of touch signal lines are divided into a plurality of touch signal line groups, at least part of the touch signal line groups are alternately arranged with the first dummy pattern groups along a first direction; at least part of the shielding line is located between adjacent touch signal line groups and the first dummy pattern groups.

16. The display substrate according to claim 11, wherein: At least a portion of an orthographic projection of the organic groove on the base substrate is located between the bending area and the display area.

17. The display substrate according to claim 2, wherein: The display substrate further includes: a plurality of touch signal lines, the touch signal lines including a first touch portion, a second touch portion and a third touch portion connected end to end in sequence, the first touch portion and the second touch portion are located in the frame area, and the third touch portion is located in the display area; The second touch parts included in at least some of the touch signal lines form a winding structure, and the resistances of the plurality of touch signal lines are substantially the same.

18. The display substrate according to claim 17, wherein: The second touch portion includes a first access end, a second access end and a winding structure, the winding structure is coupled to the first access end and the second access end respectively, the first access end is coupled to the corresponding first touch portion, and the second access end is coupled to the corresponding third touch portion; The first access end portion includes at least a portion extending along the second direction, and the second access end portion includes at least a portion extending along the second direction.

19. The display substrate according to claim 18, wherein: The plurality of touch signal lines include a plurality of second access ends arranged along a first direction, and a dummy winding structure is provided between at least some of the adjacent second access ends of the plurality of second access ends.

20. The display substrate according to claim 18, wherein: The width of the second access end portion along a direction perpendicular to its own extension direction is three times the line width of the winding structure.

21. The display substrate according to claim 17, wherein: The touch signal line and the shielding layer are provided in the same layer and with the same material.

22. A touch display device, comprising the display substrate according to any one of claims 1 to 21.

Images