Display substrate and display device
A display substrate and a display device are provided. The display substrate includes a display region and an opening located in the display region, the opening penetrates through the display substrate, and the display substrate includes a base substrate, a driving circuit layer, a light-emitting component layer, an encapsulation layer, and a touch control layer. The driving circuit layer includes a first signal line at least partially surrounding the opening; the light-emitting component layer is provided on a side of the driving circuit layer away from the base substrate; the encapsulation layer is provided on a side of the light-emitting component layer away from the base substrate; the touch control layer includes a touch control electrode and a touch control compensation electrode at least partially surrounding the opening; the first signal line at least partially overlaps with the touch control compensation electrode.
1. A display substrate, comprising a display region and an opening located in the display region, wherein the opening penetrates through the display substrate, and the display substrate comprises:
a base substrate;
a driving circuit layer, provided on the base substrate and comprising a first signal line at least partially surrounding the opening;
a light-emitting component layer, provided on a side of the driving circuit layer away from the base substrate;
an encapsulation layer, provided on a side of the light-emitting component layer away from the base substrate; and
a touch control layer, provided on a side of the encapsulation layer away from the base substrate and comprising a touch control electrode and a touch control compensation electrode, the touch control compensation electrode being electrically connected to the touch control electrode and at least partially surrounding the opening; and
the first signal line at least partially overlaps with the touch control compensation electrode in a direction perpendicular to a main surface of the base substrate,
the touch control electrode comprises a second touch control electrode extending along a second direction, the second touch control electrode comprises a third sub-touch control electrode, the opening is immediately opened on only one third sub-touch electrode, and an area of the third sub-touch electrode is greater than an area of the opening;
the second touch control electrode further comprises a third sub-touch control electrode first sub-electrode and a third sub-touch control electrode second sub-electrode that are located on opposite sides of the opening in a first direction;
the touch control compensation electrode comprises a first touch control compensation electrode, the first touch control compensation electrode comprises a first sub-compensation electrode and a second sub-compensation electrode both extending along an edge of the opening and located on opposite sides of the opening in a second direction, and the first direction intersects with the second direction; and
both ends of the first sub-compensation electrode and both ends of the second sub-compensation electrode are electrically connected to the third sub-touch control electrode first sub-electrode and the third sub-touch control electrode second sub-electrode respectively.
2. The display substrate according to claim 1 , wherein the touch control electrode further comprises a first touch control electrode extending along the first direction, and the first touch control electrode comprises a first sub-touch control electrode and a second sub-touch control electrode that are provided adjacent to each other along the second direction;
the touch control compensation electrode comprises a second touch control compensation electrode, and the second touch control compensation electrode comprises a fourth sub-compensation electrode and a fifth sub-compensation electrode extending along the edge of the opening; and
the fourth sub-compensation electrode is electrically connected to the first sub-touch control electrode, and the fifth sub-compensation electrode is electrically connected to the second sub-touch control electrode.
3. The display substrate according to claim 2 , wherein the fourth sub-compensation electrode comprises a first connection portion for electrical connection, and the fifth sub-compensation electrode comprises a second connection portion for electrical connection;
in the direction perpendicular to the main surface of the base substrate, the first connection portion and the first sub-compensation electrode have a first overlapping region, and/or
the second connection portion and the second sub-compensation electrode have a second overlapping region.
4. The display substrate according to claim 3 , wherein
at least one of the first connection portion and the first sub-compensation electrode is provided with a hollow portion in the first overlapping region, and/or
at least one of the second connection portion and the second sub-compensation electrode is provided with a hollow portion in the second overlapping region.
5. The display substrate according to claim 1 , wherein the first signal line comprises a first sub-signal line surrounding the opening, and a longitudinal cross-section of the first sub-signal line is provided with at least one bent portion.
6. The display substrate according to claim 5 , wherein the first signal line further comprises a second sub-signal line and a third sub-signal line both surrounding the opening, the first sub-signal line is located on a side of the second sub-signal line away from the base substrate, and the third sub-signal line is located on a side of the first sub-signal line away from the base substrate; and
an included angle between a side wall of the third sub-signal line and the main surface of the base substrate is α2, an included angle between a side wall of the first sub-signal line and the main surface of the base substrate is α3, and an included angle between a side wall of the second sub-signal line and the main surface of the base substrate is α4, then
α3≤α4 and α3≤α2, where α2<75°, α3>30°, and 40°<α4<50°.
7. The display substrate according to claim 6 , wherein the driving circuit layer comprises a plurality of pixel driving circuits, the light-emitting component layer comprises a plurality of light-emitting components, and the plurality of pixel driving circuits are respectively electrically connected to the plurality of light-emitting components to respectively drive the plurality of light-emitting components;
the pixel driving circuit comprises a thin film transistor and a storage capacitor, the thin film transistor comprises a gate electrode, a source electrode and a drain electrode provided on the base substrate, the source electrode and drain electrode are provided on a side of the gate electrode away from the base substrate, the storage capacitor comprises a first capacitor electrode and a second capacitor electrode provided on the base substrate, and the second capacitor electrode is provided on a side of the first capacitor electrode away from the base substrate; and
the first sub-signal line is provided in a same layer and with a same material as the source electrode and the drain electrode, and the gate electrode is provided in a same layer and with a same material as the first capacitor electrode.
8. The display substrate according to claim 1 , further comprising a light-shielding ring surrounding the opening, and the light-shielding ring is provided in a same layer and with a same material as the touch control layer.
9. The display substrate according to claim 8 , wherein in a direction parallel to the main surface of the base substrate, the light-shielding ring is located on a side of the touch control compensation electrode close to the opening, and the first signal line is provided within a range defined by the touch control compensation electrode and the light-shielding ring.
10. The display substrate according to claim 9 , wherein in the direction perpendicular to the main surface of the base substrate, the first signal line at least partially overlaps with the light-shielding ring.
11. The display substrate according to claim 8 , wherein the light-shielding ring comprises a plurality of light-shielding portions spaced apart from each other.
12. The display substrate according to claim 8 , further comprising a detection wire surrounding the opening, wherein the detection wire is electrically connected to the touch control electrode.
13. The display substrate according to claim 7 , further comprising a barrier dam surrounding the opening, wherein the barrier dam is located on a side of the first signal line close to the opening.
14. The display substrate according to claim 7 , wherein the pixel driving circuit further comprises a plurality of insulation sub-layers, and the plurality of insulation sub-layers are respectively provided between the gate electrode and the second capacitor electrode and between the second capacitor electrode and the source electrode as well as the drain electrode; and
the display substrate further comprises a groove surrounding the opening, and the groove is located on a side of the first signal line close to the opening, and is at least provided in one of the plurality of insulation sub-layers or the base substrate.
15. The display substrate according to claim 6 , wherein the touch control layer comprises a first touch control metal layer, an interlayer insulation layer and a second touch control metal layer which are sequentially stacked in a direction away from the base substrate,
the touch control electrode comprises a first metal line located in the first touch control metal layer and a second metal line located in the second touch control metal layer, a first via hole is provided in the interlayer insulation layer, and the first metal line is electrically connected to the second metal line through the first via hole.
16. A display device, comprising the display substrate according to claim 1 .
17. The display substrate according to claim 3 , wherein the opening is provided with a center R, and an included angle between a line, which is from any point of an overlapping part of the first connection portion and the first sub-compensation electrode to the center R, and an extension direction of the first connection portion is α1, then α1<20°; and/or
an included angle between a line, which is from any point of an overlapping part of the second connection portion and the second sub-compensation electrode to the center R, and an extension direction of the second connection portion is θ1, then θ1<20°.
18. The display substrate according to claim 4 , wherein an overlapping area of the first connection portion and the first sub-compensation electrode is S1, the first sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the first sub-compensation electrode is S1,′ then 0.40<S1/(S1+S1′)<0.71; and/or
an overlapping area of the second connection portion and the second sub-compensation electrode is S2, the second sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the second sub-compensation electrode is S2′, then 0.40<S2/(S2+S2′)<0.71.
19. The display substrate according to claim 4 , wherein an overlapping area of the first connection portion and the first sub-compensation electrode is S1, the first sub-compensation electrode is provided with a hollow portion, and an area of the hollow portion of the first sub-compensation electrode is S1′; and
the opening is provided with a center R, and an included angle between a line, which is from any point of an overlapping part of the first connection portion and the first sub-compensation electrode to the center R, and an extension direction of the first connection portion is α1, then
α1<20° and 0.40< S 1/( S 1+ S 1′)<0.71.
20. The display substrate according to claim 3 , wherein an interlayer insulation layer is provided between the first connection portion and the first sub-compensation electrode, and a material of the interlayer insulation layer is at least one of SIN, SiO, SiON and OC.