Display panel, method for manufacturing same, and display device
Provided is a display panel, including: a substrate, including a display region and a non-display region disposed on an outer periphery of the display region; a light-emitting device and a packaging layer, disposed on the substrate; and at least one retaining wall and a signal trace, disposed on a side of the packaging laver proximate to the substrate; wherein the light-emitting device is disposed within the display region, the at least one retaining wall and the signal trace are disposed within the non-display region, and the signal trace is electrically connected to the light-emitting device and is provided with an aperture, wherein an orthographic projection of the aperture on the substrate is disposed within an orthographic projection of the at least one retaining wall on the substrate.
1 . A display panel, comprising:
a substrate, comprising a display region and a non-display region disposed on an outer periphery of the display region;
a light-emitting device and a packaging layer, disposed on the substrate; and
at least one retaining wall and a signal trace, disposed on a side of the packaging layer proximate to the substrate;
wherein the light-emitting device is disposed within the display region, the at least one retaining wall and the signal trace are disposed within the non-display region, and the signal trace is electrically connected to the light-emitting device and is provided with at least one aperture, wherein an orthographic projection of the at least one aperture on the substrate is disposed within an orthographic projection of the at least one retaining wall on the substrate; and
wherein each of the at least one retaining wall comprises at least two organic insulating layers that are laminated, the display panel further comprises a third conductive layer between two adjacent organic insulating layers in the at least one retaining wall, and the third conductive layer comprises the signal trace;
wherein the at least one retaining wall comprises a first retaining wall and a second retaining wall, and at least two organic insulating layers in the first retaining wall comprise a first organic insulating layer, a second organic insulating layer and a pixel defining layer that are laminated; and
wherein the third conductive layer is disposed between the first organic insulating layer and the second organic insulating layer, and the orthographic projection of the at least one aperture on the substrate is within an orthographic projection of the first retaining wall on the substrate so as to release the moisture absorbed by the first organic insulating layer;
wherein the signal trace comprises at least one first power signal lead, two second power signal leads and a power connecting bus, wherein an extending direction of a length of the power connecting bus is parallel to an extending direction of a length of a part of the at least one retaining wall, the two second power signal leads are arranged at a same side of the power connecting bus and are arranged at two ends of the power connecting bus respectively along the extending direction of the length of the power connecting bus, and an extending direction of a length of each of the two second power signal leads is perpendicular to the extending direction of the length of the power connecting bus, wherein the power connecting bus and the two second power signal leads are all independent parts, and the power connecting bus is electrically connected to each of the two second power signal leads;
the at least one aperture is respectively disposed in the at least one first power signal lead, the two second power signal leads and the power connecting bus;
an orthographic projection of the at least one first power signal lead on the substrate comprises a first overlap region with the orthographic projection of the at least one retaining wall on the substrate, an orthographic projection of each of the two second power signal leads on the substrate comprises a second overlap region with the orthographic projection of the at least one retaining wall on the substrate, and an orthographic projection of the power connecting bus on the substrate comprises a third overlap region with the orthographic projection of the at least one retaining wall on the substrate; and
the orthographic projection of the at least one aperture on the substrate is respectively disposed within the first overlap region, the second overlap region and the third overlap region.
2 . The display panel according to claim 1 , further comprising:
a touch unit and at least one touch signal lead, disposed on a side of the packaging layer distal from the substrate, wherein the at least one touch signal lead is connected to the touch unit;
wherein the touch unit is disposed within the display region, the at least one touch signal lead is disposed within the non-display region, and an orthographic projection of the at least one touch signal lead on the substrate is at least partially within the orthographic projection of the at least one first power signal lead on the substrate and is not overlapped with the orthographic projection of the at least one aperture on the substrate.
3 . The display panel according to claim 2 , wherein the at least one touch signal lead comprises a plurality of touch signal leads, and the at least one aperture is arranged between at least two adjacent touch signal leads of the plurality of touch signal leads.
4 . The display panel according to claim 3 , wherein the at least one aperture comprises a plurality of apertures and the plurality of apertures are arranged in the at least one first power signal lead, and the at least one aperture is arranged between any two adjacent touch signal leads of the plurality of touch signal leads.
5 . The display panel according to claim 4 , wherein a distance between any two adjacent touch signal leads is greater than a width of each of the plurality of apertures, and a width direction of each of the plurality of apertures is perpendicular to an extending direction of the touch signal lead.
6 . The display panel according to claim 4 , wherein the at least one first power signal lead comprises two first power signal leads; the plurality of touch signal leads are divided into two groups of touch signal leads, wherein the two first power signal leads correspond to the two groups of touch signal leads one by one, and an orthographic projection of each group of the touch signal leads on the substrate is at least partially within an orthographic projection of a corresponding first power signal lead on the substrate.
7 . The display panel according to claim 6 , wherein
one of the two groups of touch signal leads comprises a plurality of first touch signal leads successively arranged, and other one of the two groups of touch signal leads comprises a plurality of second touch signal leads successively arranged; and
the touch unit comprises a touch sensing electrode and a touch driving electrode, insulated from each other, wherein the first touch signal lead is connected to the touch sensing electrode, and the second touch signal lead is connected to the touch driving electrode.
8 . The display panel according to claim 7 , wherein
the touch signal lead comprises a first sub-lead and a second sub-lead electrically connected to the first sub-lead, wherein the first sub-lead and the second sub-lead are disposed on different layers.
9 . The display panel according to claim 8 , wherein
an orthographic projection of the first sub-lead on the substrate is overlapped with an orthographic projection of the second sub-lead on the substrate.
10 . The display panel according to claim 8 , further comprising:
a first conductive layer, an insulating layer, and a second conductive layer that are disposed on the packaging layer and laminated in a direction perpendicular to and distal from the packaging layer;
wherein the first conductive layer comprises the first sub-lead, and the second conductive layer comprises the second sub-lead, the touch sensing electrode and the touch driving electrode.
11 . The display panel according to claim 10 , wherein
a plurality of touch driving electrodes are arranged in a plurality of rows; and
a plurality of touch sensing electrodes are arranged in a plurality of columns.
12 . The display panel according to claim 2 , further comprising:
a touch signal line configured to connect the touch unit and the touch signal lead.
13 . The display panel according to claim 1 , wherein the at least one first power signal lead comprises two first power signal leads, and the two second power signal leads are disposed between the two first power signal leads.
14 . The display panel according to claim 13 , wherein the at least one the first power signal lead, the power connecting bus and the two second power signal leads are disposed on a same layer and are made of a same material.
15 . The display panel according to claim 1 , wherein
the second retaining wall is proximate to the display region relative to the first retaining wall; and
at least two organic insulating layers in the second retaining wall comprise the second organic insulating layer and the pixel defining layer that are laminated.
16 . A method for manufacturing a display panel, wherein the display panel is the display panel as defined in claim 1 , the method comprising:
providing the substrate, wherein the substrate comprises the display region and the non-display region disposed on an outer periphery of the display region; and
forming the light-emitting device, the packaging layer, at least one retaining wall, and the signal trace on the substrate.
17 . A display device, comprising:
the display panel as defined in claim 1 and a driving chip;
wherein the driving chip is electrically connected to the signal trace in the display panel.