The present disclosure provides a display substrate, including: a base substrate having an opening region, a transition region surrounding the opening region and a pixel region surrounding the opening region; at least one ink-jet printing dam in the transition region and surrounding the opening region; and at least one conductive film layer in the transition region, where an orthographic projection of the conductive film layer on the base substrate is overlapped with an orthographic projection of the ink-jet printing dam on the base substrate. In the technical solution of the present disclosure, the conductive film layer is intended to absorb and conduct heat, so as to reduce the heat on the ink-jet printing dam.

A display device includes a substrate having a display area and a peripheral area, a pixel disposed on the substrate in the display area, the pixel including a pixel circuit, a pixel electrode electrically connected to the pixel circuit, an emission layer disposed on the pixel electrode, and an opposite electrode disposed on the emission layer, a power supply line disposed on the substrate in the peripheral area, the power supply line for supplying a power voltage to the pixel, an insulating layer covering the pixel circuit and the power supply line, the insulating layer including an opening exposing at least a portion of the power supply line, and a dummy pattern including a same material as the pixel electrode, the dummy pattern covering a sidewall of the power supply line exposed by the opening of the insulating layer.

A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes a display region and a peripheral region. The display region includes an opening, and the peripheral region includes a first peripheral region; the first peripheral region includes a first dam region, a second dam region, and an interval region; the display substrate includes a base substrate, a first conductive semiconductor pattern, a first conductive pattern, and a second conductive pattern; the first conductive pattern is insulated from the first conductive semiconductor pattern, and the second conductive pattern is insulated from the first conductive pattern; the second conductive pattern is electrically connected to the first conductive semiconductor pattern through via holes in the first peripheral region; and an arrangement density of the via holes in the interval region is smaller than an arrangement density of the via holes in the first dam region.

A display apparatus includes a display panel including a first area in which a first display element and a first pixel circuit are arranged, a second area in which a second display element is arranged, and a peripheral area in which a pixel circuit unit including a second pixel circuit is arranged; and a component arranged below the display panel to correspond to the second area, wherein the display panel includes a substrate; an organic insulating layer that is arranged between the first display element and the first pixel circuit, and extends to the peripheral area; and a valley portion that is provided as an opening in the organic insulating layer in the peripheral area, and at least partially surrounds the first area, wherein the valley portion includes a first valley and a second valley that are apart from each other with the pixel circuit unit therebetween.

Provided is an organic light emitting display module including an active area, a pad area, and a boundary area between the active area and the pad area. Unlike the active area and the pad area, since the boundary area does not include an inorganic layer, less stress is applied to the boundary area when the boundary area is bent. Display panel pads and touch sensing member pads are disposed at the same height without having a height difference therebetween. Thus, a dummy pad may be added to remove the height difference between the display panel pads and the touch sensing member pads.

A display substrate and preparation method thereof, an ink-jet printing method and a display device are provided. The display substrate includes a display area, a peripheral area, and a pixel definition layer; the pixel definition layer including: a display pixel definition region and an assistant pixel definition region surrounding the display pixel definition region; the display pixel definition region includes a plurality of first pixel definition units; the assistant pixel definition region includes a plurality of second pixel definition units, and opening areas of the second pixel definition units are respectively greater than those of the first pixel definition units; the display pixel definition region is in the display area, the assistant pixel definition region is in the peripheral area, the plurality of first pixel definition units is configured to form display pixels, and the plurality of second pixel definition units is configured to form assistant pixels.

A display substrate has a display area and a peripheral area. The display substrate includes a base, a first insulating layer disposed above the base, a first alignment pattern disposed in the peripheral area on a surface of the first insulating layer facing away from the base, and a second alignment pattern disposed in the peripheral area at a side of the first insulating layer away from the base. An orthographic projection of the second alignment pattern on the base and an orthographic projection of the first alignment pattern on the base have a non-overlapping region therebetween, and the second alignment pattern is in contact with the first insulating layer in the non-overlapping region. Adhesion between the second alignment pattern and the first insulating layer is greater than adhesion between the second alignment pattern and the first alignment pattern.

A display device, includes: a display area and a non-display area; a plurality of signal lines over the display area; and a plurality of connection lines in the display area and connected to the signal lines, wherein the plurality of connection lines includes a plurality of first connection lines connected to the signal lines, respectively, a plurality of third connection lines on a same layer as the first connection lines, and a plurality of second connection lines connecting the first connection lines to the third connection lines.

Provided are a display substrate, a display panel and a display device. The display substrate includes a display area, a bezel area and multiple first signal lines. The bezel area includes a bonding area, the bonding area includes a first area and a second area, the first area includes first pads, and the second area includes second pads. The first signal lines are electrically connected to the first pads. Each of at least part of the first signal lines extends between respective two adjacent first pads. The second pads are dummy pads, or part of the second pads are electrically connected to a second signal line. The bonding area further includes multiple dummy traces, and at least part area of a dummy trace is disposed between two adjacent first pads, and/or between two adjacent second pads, and/or between a first pad and a second pad adjacent to each other.

A display substrate and a manufacturing method and a display device are provided. The display substrate includes: a base substrate, a first insulation layer, a first electrode pattern, a connecting electrode pattern, a second electrode, a light-emitting functional layer, and a first filling layer. The second electrode is connected with the connecting electrode pattern, the second electrode and the first electrode pattern are spaced apart from each other. The light-emitting functional layer is located between the first electrode pattern and the second electrode. The first filling layer is located between the connecting electrode pattern and the first electrode pattern. The first filling layer and the light-emitting functional layer are different layers; a portion of the first insulation layer that is located between the first electrode pattern and the connecting electrode pattern has a groove, and the first filling layer is at least partially located in the groove.