The present disclosure relates to a composition that includes a perovskite having a surface, where the surface includes a pyridine compound. In some embodiments of the present disclosure, the pyridine compound may include an amine functional group. In some embodiments of the present disclosure, the pyridine compound may be selected from a group that includes N(2-methylpyridine)A, N(3-methylpyridine)A, N(4-(methyl)pyridine)A, N(3-(2-ethyl)pyridine)A, and N(4-(2-ethyl)pyridine)A, where A is a cation, and the pyridine compound has an ionic radius larger than 10 Å.

The present disclosure relates to a composition that includes a perovskite having a surface, where the surface includes a pyridine compound. In some embodiments of the present disclosure, the pyridine compound may include an amine functional group. In some embodiments of the present disclosure, the pyridine compound may be selected from a group that includes N(2-methylpyridine)A, N(3-methylpyridine)A, N(4-(methyl)pyridine)A, N(3-(2-ethyl)pyridine)A, and N(4-(2-ethyl)pyridine)A, where A is a cation, and the pyridine compound has an ionic radius larger than 10 Å.

An organic light-emitting display device includes: a substrate; a pixel electrode on the substrate; a pixel defining layer having a first opening exposing a center portion of the pixel electrode; a barrier layer on the pixel defining layer; an intermediate layer including a first common layer, a first emissive layer, and a second common layer sequentially arranged on the pixel electrode, the pixel defining layer, and the barrier layer; and a first opposite electrode covering the intermediate layer. The barrier layer has a second opening that is larger than the first opening and has an undercut structure.

The disclosure relates to the technical field of display, in particular to a displaying substrate, a manufacturing method thereof and a display panel. The displaying substrate comprises a passivation layer (28) and a flat layer (29) covering the passivation layer (28), wherein the flat layer (29) comprises a first flat via hole and a plurality of second flat via holes, the passivation layer (28) comprises a first passivation via hole, and the first flat via hole and the first passivation via hole form a first sleeve hole (31); and the hole depth of the first flat via hole is smaller than that of each second flat via hole, and the hole depth of the first passivation via hole is greater than or equal to the difference between the maximum hole depth of all the second flat via holes and the hole depth of the first flat via hole.

The disclosure relates to the technical field of display, in particular to a displaying substrate, a manufacturing method thereof and a display panel. The displaying substrate comprises a passivation layer (28) and a flat layer (29) covering the passivation layer (28), wherein the flat layer (29) comprises a first flat via hole and a plurality of second flat via holes, the passivation layer (28) comprises a first passivation via hole, and the first flat via hole and the first passivation via hole form a first sleeve hole (31); and the hole depth of the first flat via hole is smaller than that of each second flat via hole, and the hole depth of the first passivation via hole is greater than or equal to the difference between the maximum hole depth of all the second flat via holes and the hole depth of the first flat via hole.

A dry-state non-contact method for patterning of nanostructured conducting materials is disclosed. Short self-generated electron-emission pulses in air at atmospheric pressure can enable an electron-emission-based (field enhancement) interaction between a sharp tungsten tip and elements of the nanostructured materials to cause largely non-oxidative sequential decomposition of the nanostructured elements. Embodiments can employ a substrate/tip gap of 10 to 20 nm, discharge voltages of 25-30 V, and patterning speeds as fast as 10 cm/s to provide precisely patterned nanostructures (<200 nm) that are largely free of foreign contaminants, thermal impact and sub-surface structural changes.

Exemplary methods of OLED device processing are described. The methods may include forming an anode on a substrate. Forming the anode may include forming a first metal oxide material on the substrate, forming a metal layer over the first metal oxide material, forming a protective barrier over the metal layer, and forming a second metal oxide material over the amorphous protection material. The protective barrier may be an amorphous protection material overlying the metal layer.

An organic electroluminescent display panel, a method of manufacturing the same, and a display device that can alleviate or avoid the occurrence of pixel crosstalk problems due to lateral conduction of the charge generation layer are disclosed. An organic electroluminescent display panel is provided which comprises: a substrate; an anode layer and a pixel defining layer over the substrate, the pixel defining layer defining pixel units, wherein a recess is provided in the pixel defining layer between adjacent pixel units; a stack of organic electroluminescent units over the anode layer and the pixel defining layer, the stack comprising at least two organic electroluminescent units and a charge generation layer disposed between organic electroluminescent units which are adjacent to each other; a cathode layer over the stack. The corresponding charge generation layers of the adjacent pixel units are disconnected at the recesses. The cathode layer is continuous at the recess.

A display device includes: a substrate; an inorganic insulating layer disposed on the substrate; a conductor disposed on the inorganic insulating layer; and an organic insulating layer disposed on the conductor, where an opening is defined through the organic insulating layer to expose a part of the upper surface of the conductor, and at least one material selected from a siloxane, a thiol, a phosphate, a disulfide including a sulfur series, and an amine is bonded on the part of the upper surface of the conductor exposed through the opening.

An organic light-emitting display device includes a pixel area and a transmitting area adjacent to the pixel area. The organic light-emitting display device includes an organic light-emitting diode, a driving power wiring, and a heating pattern adjacent to the driving power wiring. The organic light-emitting diode includes a first electrode disposed in the pixel area, an organic light-emitting layer disposed on the first electrode and a second electrode disposed on the organic light-emitting layer. The driving power wiring is electrically connected to the second electrode. A portion of the organic light-emitting layer is disposed in the transmitting area. The organic light-emitting layer includes an opening area overlapping the heating pattern and at least a portion of the driving power wiring. The second electrode electrically contacts the driving power wiring through the opening area.