The display substrate includes: the flexible base substrate and the trace layer, a first adhesion-enhancing layer, and a first insulating layer that are stacked on the flexible base substrate, wherein the first adhesion-enhancing layer is between the first insulating layer and the trace layer, and the first adhesion-enhancing layer is bonded to the first insulating layer and the trace layer respectively. The flexible base substrate is provided with a bending area, and an overlapping area is present between an area which an orthographic projection of the first adhesion-enhancing layer on the flexible base substrate is within and the bending area, and an orthographic projection of the signal trace in the trace layer on the flexible base substrate falls in the bending area.

Embodiments of the disclosure relate to an organic light emitting display device and an organic light emitting display panel. Specifically, embodiments of the disclosure may provide an organic light emitting display device and an organic light emitting display panel which include a first signal line disposed between a first emission area and a second emission area and a second signal line spaced apart from the first signal line, a first insulation film disposed on the first signal line and the second signal line and having a first hole corresponding to a separation space between the first signal line and the second signal line, and a second insulation film disposed on the first insulation film, wherein the second insulation film is disposed in the separation space between the first signal line and the second signal line and the first hole of the first insulation film. Thus, it is possible to reduce the separation space between the signal lines and thus increase the area of the emission area to thereby enhance optical characteristics.

Disclosed is a display device including a substrate including a plurality of sub-pixels, each of the plurality of sub-pixels including a light emitting area, a first planarization film on the substrate, an ashing stop film on the first planarization film, a second planarization film on the ashing stop film and including a micro lens array that overlaps the light-emitting area, and a first electrode on the second planarization film and an exposed face of the micro lens array.

The present disclosure is related to a light emitting diode. The light emitting diode may include a pixel unit which may include a first sub-pixel. The first sub-pixel may include a dummy electrode layer and a first electrode layer on the dummy electrode layer. The dummy electrode layer may include a first reflective layer. The first electrode layer may include a second reflective layer and a second transparent conductive layer on the second reflective layer.

Embodiments of the disclosed subject matter provide a device having a substrate, and a plurality of unit areas of an organic light emitting diode (OLED) display disposed on the substrate. The unit areas may be repeating, area-filling subdivisions of the substrate that each have an anode and a cathode. The organic film may be disposed over portions of the device other than the unit areas. The device may include at least one pixel having a plurality of sub-pixels disposed within each of the plurality of unit areas. The cathode of at least one pixel of each of the plurality of unit areas may be a common cathode.

The present disclosure relates to a display substrate, a method for preparing the same, and a display device. The display substrate of the present disclosure includes a base substrate, a pixel definition layer located on the base substrate, and a first pixel and a second pixel that are adjacent to each other and defined by the pixel definition layer, in which a spacer function layer for blocking hole transport between adjacent pixels is arranged at at least a part of a contact interface between the second hole transport layer in the second pixel and the light function layer in the first pixel. By providing the spacer function layer, the present disclosure effectively prevents the migration of holes between the hole transport layers of adjacent pixels or between the hole transport layer and the light emitting layer, thereby avoiding accompanying light emission between adjacent pixels.

A display apparatus includes: a substrate including a plurality of sub-pixels; an organic light emitting element formed in each of the plurality of sub-pixels; a light control member including a light control pattern disposed in each of the plurality of sub-pixels, and an air layer between adjacent light control patterns; and a color filter layer disposed on the light control member.

A light emitting display device can include a light emitting diode structure disposed on a substrate and having a first sub-pixel, a second sub-pixel, a third sub-pixel and a fourth sub-pixel, a bank that defines a pixel area of each of the first sub-pixel, the second sub-pixel, the third sub-pixel and the fourth sub-pixel, and a function improving unit disposed on the first emission part, the second emission part, the third emission part, the fourth emission part and the bank. One or two of sub-pixel among the first to fourth sub-pixels include a tandem emission part in which a first emission unit including a first emission layer and a second emission unit disposed on the first emission unit and including a second emission part are laminated.

A light-emitting device having an electron transport layer that includes a first electron transport layer including an inorganic oxide and a second electron transport layer including an organic material is provided. The first electrode is a reflective electrode.

An organic light emitting display panel including a substrate including a plurality of subpixel regions; a first electrode disposed on the substrate in each subpixel region; a first bank layer disposed in a boundary portion of each subpixel region and covering an edge of the first electrode, the first bank layer including micropatterns at an upper surface thereof, a first printed organic material layer disposed on the first electrode and a side surface of the first bank layer; a second deposited organic material layer disposed on the first organic material layer and the first bank layer; a second bank layer disposed at the upper surface of the first bank layer; a third printed organic material layer disposed on the side surface of the first bank layer and the second organic material layer; a fourth deposited organic material layer disposed on the third organic material layer and the second bank layer; and a second electrode disposed on the fourth organic material layer.