The present disclosure provides a display substrate, a manufacturing method thereof and a display panel. The display substrate includes a base substrate and a plurality of sub-pixels of different colors on the base substrate, wherein the plurality of sub-pixels include green sub-pixels, each of which includes an anode, a luminescent layer, and a cathode sequentially stacked in a direction away from the base substrate. The luminescent layer includes a first sub-layer, a second sub-layer and a third sub-layer sequentially stacked in the direction away from the base substrate; a molar ratio of P-type molecules to N-type molecules in a host material of the first sub-layer is greater than that of the second sub-layer, which in turn is greater than that of the third sub-layer.

Disclosed are a display panel and a display device. The display panel comprises a driving backboard, a touch-control layer, a first inorganic layer and a first organic layer, wherein the driving backboard is provided with a display area and a peripheral area surrounding the display area, the peripheral area comprising a binding area; the touch-control layer comprises a first touch-control electrode layer, an insulating layer and a second touch-control electrode layer; the first inorganic layer and the first organic layer are arranged in the binding area, the first inorganic layer and the insulating layer of the touch-control layer are arranged on the same layer, the first organic layer and an organic layer of the display area are arranged on the same layer, the first organic layer is located on one side of the first inorganic layer that is away from the display area.

The present invention provides a display panel and a manufacturing method thereof, wherein the display panel includes: a thin-film transistor array substrate; an anode disposed on the thin-film transistor array substrate; a pixel definition layer disposed on the anode and the thin-film transistor array substrate, wherein the pixel definition layer includes a first area and a second area, the first area is provided with an opening, a bottom of the opening is connected to the anode, and the second area is provided with a plurality of grooves; a light-emitting layer disposed in the opening; a cathode covering the light-emitting layer and the pixel definition layer; and an encapsulation layer covering the cathode.

An organic-EL-display device includes a blue-emitting-organic-EL-device and a red-emitting-organic-EL-device as pixels, in which each of the blue-emitting-organic and the red-emitting-organic-EL-device includes a light-reflection layer, transparent electrode, hole transporting zone, emitting layer, electron transporting zone and semitransmissive electrode in this order, the blue-emitting-organic-EL-device has a blue-emitting layer containing a fluorescent-compound FLB, the red-emitting-organic-EL-device has a red-emitting layer containing a delayed fluorescent compound DFR, the hole transporting zone is provided at a constant film-thickness in a shared manner across the blue-emitting and red-emitting organic EL devices, the red-emitting-organic-EL-device has a resonator structure whose order of interference is first-order between the light reflection layer and the semitransmissive electrode, a film-thickness of the red-emitting layer is less than 50 nm, and a sum of film-thicknesses of the transparent electrode and hole transporting zone in the blue-emitting and red-emitting organic EL devices is less than 40 nm.

A display device including a substrate, a first upper power line, a conductive member, a protective insulating layer, an upper connection member, and a sub-pixel structure. The upper connection member is disposed in a first pad area and a first peripheral area on a planarization layer, and electrically connects the first upper power line and the conductive member through a first contact hole, which is formed in the protective insulating layer and the planarization layer located on the conductive member, and a second contact hole, which is formed in the protective insulating layer and the planarization layer located on the first upper power line.

A display device includes a thin film transistor layer including a first interlayer insulation film, a first wiring layer, a second interlayer insulation film, a second wiring layer, a third interlayer insulation film, a third wiring layer, a first planarization film, a fourth wiring layer, and a second planarization film; and a first damming wall in a frame area separated from the first and second planarization film in a display area by a first slit. There is provided a fourth interlayer insulation film between the third and fourth wiring layer. The fourth interlayer insulation film covers an edge of either one or both of a first frame line and a second frame line as the third wiring layer in a region where the first frame line is located opposite the second frame line in a plan view, the edge facing the display area and being exposed in the first slit.

Provided in the present disclosure are a light-emitting device, a display apparatus having the same, and a lighting apparatus. The light-emitting device includes a light-emitting unit disposed in a sub-region. The light-emitting unit includes a light-emitting functional layer, a light extraction functional layer and a part of a light transmissive substrate, which are disposed in a stacked manner. The light extraction functional layer is located on a light-exiting side of the light-emitting functional layer. A straight line segment that passes through geometric center of a light-exiting surface of each light-emitting unit and whose two ends are respectively connected with edge line of the light-exiting surface is defined as a first straight line segment, and the shortest length of the first straight line segment is defined as W. In a direction perpendicular to the light transmissive substrate, a thickness of the light-emitting unit without reflective electrode is T.

The present disclosure relates to a display apparatus using, for example, a micro light emitting diode (LED), and a manufacturing method therefor, wherein the apparatus and method can be applied to a technical field related to display apparatuses. According to the present disclosure, a display apparatus using a light-emitting device comprises: a first electrode which is divided into a plurality of segments; a common second electrode located on the first electrode; and a plurality of sub pixels electrically connected between the first electrode segments and the second electrode and forming individual pixels, wherein the sub pixels may include a first sub pixel which emits light of a first color and includes an organic light-emitting device, a second sub pixel which emits light of a second color and includes an organic light-emitting device, a third sub pixel which emits light of a third color and includes an inorganic light-emitting device, and a fourth sub pixel which includes an organic light-emitting device for emitting light which is a mixture of the light of the first to third colors.

Disclosed are an element comprising a substrate and at least two different optoelectronic devices, wherein the at least two different optoelectronic devices are monolithically fabricated on the substrate; and a method for producing the same. Also disclosed is an organic semiconductor laser diode comprising a substrate, an insulating grating, a first electrode, an organic layer and a second electrode in this order.

A display device, includes: a first light-emitting element emitting a first light having a first wavelength; and a second light-emitting element emitting a second light having a second wavelength, the first light and the second light being released in a first direction; a first optical layer formed in a second direction with respect to the first light-emitting element, and positioned to coincide with the first light-emitting element in the second direction, the first optical layer being transparent to the light having the second wavelength and reflective or absorptive of the light having the first wavelength; and a second optical layer formed in the second direction with respect to the second light-emitting element, and positioned to coincide with the second light-emitting element in the second direction, the second optical layer being transparent to the light having the first wavelength and reflective or absorptive of the light having the second wavelength.