A method for forming an organic light emitting diode is provided. A substrate and an evaporating source are provided. A first electrode is formed on a surface of the substrate. The evaporating source is spaced from the first electrode. The carbon nanotube film structure is heated to gasify an organic light emitting material and form an organic light emitting layer on a surface of the first electrode. A second electrode is formed on a surface of the organic light emitting layer.

The present invention relates to organic light-emitting diodes that include an anode electrode, a transparent cathode electrode, at least one emission layer and at least one organic semiconductor layer, wherein the at least one emission layer and the at least one organic semiconductor layer is arranged between the anode electrode and the transparent cathode electrode and the organic semiconductor layer includes a first zero-valent metal dopant and a first matrix compound wherein the first matrix comprising at least two phenanthrolinyl groups as well as to a method for manufacturing the same.

Provided in the present disclosure are a display substrate, a fabrication method therefor, and a display apparatus. The method comprises: forming a pixel defining layer on the surface of one side of a substrate, said layer defining an opening; forming a light-emitting layer in the opening; forming a sacrificial layer and a photoresist layer on the surface of the light-emitting layer away from the substrate, the orthographic projection of the sacrificial layer on the substrate at least partially overlapping the orthographic projection of the opening on the substrate, and the photoresist layer being located on the surface of the sacrificial layer away from the substrate; forming a first metal layer on the surfaces of the pixel defining layer and the photoresist layer away from the substrate; removing the sacrificial layer, the photoresist layer, and the first metal layer located on the surface of the photoresist layer away from the substrate, and exposing the opening; and forming a second metal layer in the opening and on the surface of the first metal layer away from the substrate. A cathode of the display substrate fabricated by using the described method is thinner in the opening and thicker on the surface of the pixel defining layer. The light-emitting efficiency is high, and the voltage drop is relatively low. The display effect is good, and costs are low.

Provided in the present disclosure are a display substrate, a fabrication method therefor, and a display apparatus. The method comprises: forming a pixel defining layer on the surface of one side of a substrate, said layer defining an opening; forming a light-emitting layer in the opening; forming a sacrificial layer and a photoresist layer on the surface of the light-emitting layer away from the substrate, the orthographic projection of the sacrificial layer on the substrate at least partially overlapping the orthographic projection of the opening on the substrate, and the photoresist layer being located on the surface of the sacrificial layer away from the substrate; forming a first metal layer on the surfaces of the pixel defining layer and the photoresist layer away from the substrate; removing the sacrificial layer, the photoresist layer, and the first metal layer located on the surface of the photoresist layer away from the substrate, and exposing the opening; and forming a second metal layer in the opening and on the surface of the first metal layer away from the substrate. A cathode of the display substrate fabricated by using the described method is thinner in the opening and thicker on the surface of the pixel defining layer. The light-emitting efficiency is high, and the voltage drop is relatively low. The display effect is good, and costs are low.

The present disclosure provides an organic light emitting display panel and a fabricating method thereof, and a displaying device. The method includes: forming an anode-material layer on a base plate, forming a mask on one side of the anode-material layer that is away from the base plate, and performing patterning treatment to the anode-material layer by using the mask, to form a plurality of anodes; and forming a pixel definition layer covering the mask and the base plate, wherein the pixel definition layer is provided with slots between the plurality of anodes, and performing patterning treatment to the pixel definition layer and the mask at the same time, to form a plurality of pixel defining components, wherein the pixel defining components cover parts of the base plate that are located between two neighboring anodes, and cover part of surfaces of the anodes; and a material forming the mask and a material forming the pixel definition layer are the same, each of the pixel defining components includes a first part formed by the mask, and a second part formed by the pixel definition layer, and the slots are located in the second parts.

An organic light-emitting display panel and a manufacturing method therefor, and a display device are provided. An organic light-emitting display panel includes: a substrate, organic light-emitting elements and an encapsulation layer, the encapsulation layer and the substrate defining a sealing space, the organic light-emitting elements being provided in the sealing space, each organic light-emitting element including an anode, an organic light-emitting layer and a cathode sequentially stacked in a direction away from the substrate, a first protrusion being provided on the side of each organic light-emitting layer away from the substrate, and a portion of the cathode covering the first bulge forming a second bulge; and a color filter layer provided on the side of the encapsulation layer away from the organic light-emitting elements, the color filter layer comprising color resist blocks and black matrices, the color resist blocks and the organic light-emitting elements being arranged in one-to-one correspondence.

An organic light-emitting display panel and a manufacturing method therefor, and a display device are provided. An organic light-emitting display panel includes: a substrate, organic light-emitting elements and an encapsulation layer, the encapsulation layer and the substrate defining a sealing space, the organic light-emitting elements being provided in the sealing space, each organic light-emitting element including an anode, an organic light-emitting layer and a cathode sequentially stacked in a direction away from the substrate, a first protrusion being provided on the side of each organic light-emitting layer away from the substrate, and a portion of the cathode covering the first bulge forming a second bulge; and a color filter layer provided on the side of the encapsulation layer away from the organic light-emitting elements, the color filter layer comprising color resist blocks and black matrices, the color resist blocks and the organic light-emitting elements being arranged in one-to-one correspondence.

Provided is a perovskite-based photovoltaic device including a layered scaffold material and at least one perovskite material interpenetrating the layered scaffold, wherein the at least one perovskite layer is removable and regenerable.

A display apparatus includes: a substrate; a first display element having a first emission area configured to emit light of a first color; first and second data lines between the substrate and the first display element, extending in a first direction, and overlapping at least a portion of the first emission area; and first and second auxiliary electrodes between the substrate and the first display element, overlapping at least a portion of the first emission area, and configured to receive a driving voltage, wherein a lengthwise direction of the first and second auxiliary electrodes is the first direction, and wherein the first and second data lines are between the first and second auxiliary electrodes spaced apart from each other in a second direction.

A polymer containing at least one unit of formula

##STR00001##

is prepared by treating a compound of formula

##STR00002##

wherein Y.sup.2 is I, Br, Cl or O—S(O).sub.2CF.sub.3,
with an S-donor agent, in order to obtain the compound of formula

##STR00003##

wherein Y.sup.2 is as defined for the compound of formula (5).