An array substrate is disclosed. The array substrate may include a base substrate (21), a pixel defining layer (22) on the base substrate (21), and a charge generating layer (24) above the pixel defining layer (22). The pixel defining layer (22) may define a plurality of pixel regions. The pixel defining layer (22) may include a plurality of acoustic structures (220), and each of the plurality of acoustic structures (220) may be configured to resonate under an action of an acoustic wave of a threshold frequency to form a slit to disconnect the charge generating layer (24) of two adjacent pixel regions of the plurality of pixel regions.

A method for making a nanoimprinted perovskite film or a perovskite crystal. The method includes applying a solution onto a substrate, thereby forming a precursor film or a precursor crystal, wherein the solution comprises an organo-metal halide precursor in a solvent. The method also includes fabricating an organo-metal halide perovskite film or an organo-metal halide perovskite crystal, wherein fabricating includes annealing the precursor film or the precursor crystal, thereby at least partially evaporating the solvent. The method also includes imprinting the organo-metal halide perovskite film or the organo-metal halide perovskite crystal with a mold, thereby forming an imprinted film or an imprinted crystal. The method also includes separating the mold from the imprinted film or the imprinted crystal, thereby forming the perovskite film or the perovskite crystal.

An OLED, a method for fabricating the same, and a display device are disclosed. The OLED includes a first electrode, a first carrier transporting layer, an organic light emitting layer, a second carrier transporting layer, a second electrode, and a light extracting layer between the first electrode and the organic light emitting layer. The light extracting layer is made from a first carrier transporting material. The light extracting layer is formed between the first electrode and the organic light emitting layer at a light exit side of the OLED, and is formed from the first carrier transporting material. This increases the light extracting efficiency of the OLED. The light extracting layer further acts as the first carrier transporting layer, thus simplifying the structure of OLED, making OLED easy to fabricate, and efficiently controlling cost.

Methods for simultaneously forming two or more different colored material layers on a substrate. include performing surface energy patterning (SEP) to define a first, hydrophobic region and a second, hydrophilic region on the substrate, applying first and second materials on the second region, wherein the first material comprises a material having a first color, and wherein the second material comprises a material having a second color, and doctor blade coating the first and second materials simultaneously to form first and second material layers on the substrate. The methods are particularly useful for making multi-color light emitting and detecting components such as LEDs and OPDs.

Methods for simultaneously forming two or more different colored material layers on a substrate. include performing surface energy patterning (SEP) to define a first, hydrophobic region and a second, hydrophilic region on the substrate, applying first and second materials on the second region, wherein the first material comprises a material having a first color, and wherein the second material comprises a material having a second color, and doctor blade coating the first and second materials simultaneously to form first and second material layers on the substrate. The methods are particularly useful for making multi-color light emitting and detecting components such as LEDs and OPDs.

Although an ink jet method known as a method of selectively forming a film of a high molecular species organic compound, can coat to divide an organic compound for emitting three kinds (R, G, B) of light in one step, film forming accuracy is poor, it is difficult to control the method and therefore, uniformity is not achieved and the constitution is liable to disperse. In contrast thereto, according to the invention, a film comprising a high molecular species material is formed over an entire face of a lower electrode connected to a thin film transistor by a coating method and thereafter, the film comprising the high molecular species material is etched by etching by plasma to thereby enable to selectively form a high molecular species material layer. Further, the organic compound layer is constituted by a material for carrying out luminescence of white color or luminescence of single color and combined with a color changing layer or a coloring layer to thereby realize full color formation.

There is provided a method of manufacturing a display unit. The method includes forming a plurality of first electrodes, forming a functional layer that covers from the first electrode to an inter-electrode region, and locally applying an energy ray to the functional layer to form a disconnecting section or a high-resistance section in the functional layer in the inter-electrode region.

A mask includes a first light-transmitting portion. The first light-transmitting portion includes a target region and at least one compensation region connected to the target region. A planar pattern of the target region includes a plurality of corners, and a planar pattern of each compensation region extends from one of the plurality of corners. An area of the planar pattern of each compensation region is less than an area of the planar pattern of the target region.

Programmable memory devices having a cross-point array of polymer junctions with individually-programmed conductances are provided. In one aspect, a method of forming a memory device includes: forming first metal lines on an insulating substrate; forming polymeric resistance elements on the first metal lines; and forming second metal lines over the polymeric resistance elements with a single one of the polymeric resistance elements present at each intersection of the first/second metal lines forming a cross-point array. A memory device and a method of operating a memory device are also provided.

An embodiment of the present application provides a preparation method of a mask assembly, including: fixing, after stretching and aligning a blocking, the blocking on a side of a frame; opening at least one stretching align hole and at least one evaporation align mark in the fixed blocking and frame; fixing, after stretching and aligning a mask sheet, the mask sheet on a side of the blocking away from the frame according to the stretching align hole; and opening at least one evaporation align mark in the fixed mask sheet to obtain the mask assembly.