A display substrate according to an embodiment of the present disclosure comprises a substrate and a plurality of pixel units on the substrate, at least one of the plurality of pixel units comprising a light-emitting unit, a photosensitive unit for detecting light emitted by the light-emitting unit, and an interlayer insulating layer between the photosensitive unit and the light-emitting unit, wherein the interlayer insulating layer comprises a groove, an orthogonal projection of which on the substrate does not coincide with an orthogonal projection of the photosensitive unit on the substrate, and the light-emitting unit covers the groove.

An active matrix organic light-emitting diode display panel is provided and includes a first metal layer, an interlayer dielectric layer, a second metal layer, a planarization layer and a transparent conductive layer sequentially located on a substrate. Second via holes are defined in the planarization layer. The transparent conductive layer is connected to the second metal layer through the second via holes. A contact surface of the second metal layer and the transparent conductive layer is a waved surface.

A display device is provided including a display region arranged with a plurality of pixels, and a first sealing region arranged in an exterior periphery part of the display region, the display region includes an individual pixel electrode arranged in each of the plurality of pixels, a common pixel electrode arranged in upper layer of the individual pixel electrode and in succession to the plurality of pixels, and a light emitting layer arranged between the individual pixel electrode and the common pixel electrode, and the first sealing region includes a sealing layer arranged on a lower layer than the common pixel electrode and a region stacked with the common pixel electrode extending from the display region, the stacked region being enclosed by the display region.

An organic light-emitting diode display is disclosed. In one aspect, the display includes a plurality of pixels formed in a plurality of intersection areas of a plurality of data lines and a plurality of scan lines. Each of the pixels includes a storage capacitor configured to store a data voltage, at least one target transistor having one end electrically connected to a current path of the storage capacitor, an organic light emitting layer, and a first electrode of an OLED formed over the organic light emitting layer. The first electrode includes a first electrode extension configured to block at least a portion of the target transistor from light.

A light emitting display device includes a substrate including a plurality of sub pixel areas having an emission area and an anode contact area, a driving thin film transistor disposed in each of the plurality of sub pixel areas, a planarization layer disposed on the substrate, a cathode electrode disposed on the planarization layer overlapped with the emission area, a plurality of connection electrode patterns disposed on the planarization layer overlapped with the anode contact area, and connected with respective source electrodes of the driving thin film transistors disposed in the plurality of sub pixel areas by one-to-one correspondence, an emission layer disposed on the cathode electrode, and a plurality of anode electrodes disposed on the emission layer, and connected with the plurality of connection electrode patterns through the anode contact area by one-to-one correspondence.

A display substrate according to an embodiment of the present disclosure comprises a substrate and a plurality of pixel units on the substrate, at least one of the plurality of pixel units comprising a light-emitting unit, a photosensitive unit for detecting light emitted by the light-emitting unit, and an interlayer insulating layer between the photosensitive unit and the light-emitting unit, wherein the interlayer insulating layer comprises a groove, an orthogonal projection of which on the substrate does not coincide with an orthogonal projection of the photosensitive unit on the substrate, and the light-emitting unit covers the groove.

A light-emitting element comprises a substrate, a plurality of light shielding layers, a capping layer, a conductive layer and a plurality of protrusions. The plurality of light shielding layers is under the substrate. The capping layer contacts a first surface of the substrate and covers the plurality of light shielding layers. The conductive layer contacts a second surface of the substrate. The plurality of protrusions is arranged on the second surface of the substrate and covers a part of the conductive layer, and an organic light-emitting unit comprising an organic material is disposed between two adjacent protrusions of the plurality of protrusions. One of the plurality of protrusions has an edge, which is offset from an edge of one of the plurality of light shielding layers in the longitudinal direction from each other.

A display device is provided including a display region arranged with a plurality of pixels, and a first sealing region arranged in an exterior periphery part of the display region, the display region includes an individual pixel electrode arranged in each of the plurality of pixels, a common pixel electrode arranged in upper layer of the individual pixel electrode and in succession to the plurality of pixels, and a light emitting layer arranged between the individual pixel electrode and the common pixel electrode, and the first sealing region includes a sealing layer arranged on a lower layer than the common pixel electrode and a region stacked with the common pixel electrode extending from the display region, the stacked region being enclosed by the display region.

The present disclosure provides a display panel, a display device, and a method for driving a display device. The display panel has a display region, a partial region of which is reused as a photographing photosensitive region. The display panel includes: a first substrate; a second substrate disposed opposite to the first substrate; a plurality of pixel units disposed in the display region, and a plurality of photosensitive elements disposed in the photographing photosensitive region. The first substrate is located on a side of the second substrate facing a light-emitting surface, the plurality of pixel units is formed on the second substrate, each of the plurality of pixel units includes a pixel circuit and a light-emitting element, and a planarization layer is arranged between the pixel circuit and the light-emitting element, and the plurality of photosensitive elements is located on a side of the planarization layer facing the first substrate.

An active matrix organic light-emitting diode display panel is provided and includes a first metal layer, an interlayer dielectric layer, a second metal layer, a planarization layer and a transparent conductive layer sequentially located on a substrate. Second via holes are defined in the planarization layer. The transparent conductive layer is connected to the second metal layer through the second via holes. A contact surface of the second metal layer and the transparent conductive layer is a waved surface.