A display device, an electronic device, or a lighting device that is unlikely to be broken is provided. A flexible first substrate and a flexible second substrate overlap with each other with a display element provided therebetween. A flexible third substrate is bonded on the outer surface of the first substrate, and a flexible fourth substrate is bonded on the outer surface of the second substrate. The third substrate is formed using a material softer than the first substrate, and the fourth substrate is formed using a material softer than the second substrate.

A display is provided. The display device includes a display area and a non-display area located around the display area; a base layer; an organic light-emitting diode (OLED) that is located on the base layer in the display area; and a first crack detection line that is located on the base layer in the non-display area; wherein the first crack detection line comprises a first line that extends substantially in a first direction along a first edge of the display area, a second line that is separated from the first line and extends substantially in the first direction, and a third line that is connected to an end of the first line and an end of the second line, wherein a cross-sectional shape of the first line in a second direction crossing the first direction is inversely tapered.

An organic light-emitting display comprises a substrate having a plurality of subpixels arranged in a row direction and a column direction crossing the row direction; a plurality of first electrodes respectively allocated to the plurality of subpixels and comprising a first sub-electrode arranged in a (3n-2) column, a second sub-electrode arranged in a (3n-1) column, and a third sub-electrode arranged in a 3n column (where n is a natural number of 1 or more); and a bank having an opening exposing the plurality of first electrodes, wherein the first sub-electrode has a convex part protruded toward the third sub-electrode that has a concave part corresponding to the convex part.

A display panel, a manufacturing method thereof and a display apparatus are provided. The display panel includes: a base substrate (10); a plurality of pixel units (P) are arranged on the base substrate (10); a pixel defining layer (11), located on the base substrate (10); the pixel defining layer (11) includes: a plurality of openings (U) located in all the pixel units (P) respectively, and a plurality of communicating grooves (T); and the openings corresponding to the two pixel units with the same color are connected through the communicating grooves (T).

Disclosed are a preparation method thereof, a display panel, and a display device. The drive backboard comprises: a pixel circuit disposed on a base substrate; an anode disposed on a side of the pixel circuit facing away from the base substrate and electrically connected to the pixel circuit; and a first insulating layer disposed between the base substrate and the anode; the first insulating layer is provided with a groove surrounding the pixel circuit, the anode covers the first insulating layer, and an edge of the anode extends to an inner wall of the groove.

Disclosed is a display panel, which solves the problem that water and oxygen easily intrude from the edge of the isolation layer in the prior art. The display panel includes an array substrate, including a display area and a frame area surrounding the display area; a protrusion located in the frame area, the protrusion comprising a first side wall on a side close to the display area and a second side wall on a side away from the display area, at least one of the first side wall and the second side wall comprising a concave area; and an isolation layer stacked on one side of the array substrate and the protrusion, the protrusion being located in an orthographic projection of the isolation layer on the array substrate.

A display panel and a manufacturing method are provided. The present disclosure can reduce process steps of the display panel by disposing a first source electrode and a first drain electrode of a low temperature polysilicon thin film transistor and a second source electrode and a second drain electrode of an oxide thin film transistor in a same layer. Therefore, stability of the oxide thin film transistor can be improved, a channel length of the oxide thin film transistor can be shortened correspondingly, resolution of the display panel can be improved, and a thickness of the display panel can be reduced.

A manufacturing method of a display panel and the display panel are disclosed. The manufacturing method of the display panel generates electric fields between pixel electrode layers or between the pixel electrode layers and electrode layers. The electric fields have a horizontal component and a vertical component. The vertical component of the electric fields provides a force of depositing on the pixel electrode layers for charged groups in a material of light-emitting functional layers. Therefore, the method can prompt an ink of a light-emitting functional material to be deposited on the pixel electrode layers.

A display substrate, a manufacturing method thereof, and a display device are provided. A first test signal line in a test circuit in the display substrate extends in a second direction, and a second test signal line includes a first part extending a the first direction and a second part extending in the second direction; a width of the second part of the second test signal line in a direction perpendicular to the second direction is different from a width of the first test signal line in the direction perpendicular to the second direction; a difference between a resistance of the first test signal line and a resistance of the second test signal line the difference is less than a first threshold. The display substrate as provided is used for display

Disclosed are a display panel and a display device. The display panel includes a first display region and a second display region, the density of pixels of the first display region is lower than the density of pixels of the second display region; the display panel includes a base substrate and a cover plate, and an antenna arranged between the base substrate and the cover plate, the antenna is arranged in the first display region and among the pixels.