Abstract: The present disclosure provides an OLED display panel, an electronic device, and a manufacturing method. The OLED display panel comprises a substrate, a first electrode, a light-emitting function layer, and a second electrode including Ag or a metal alloy containing Ag. When the second electrode is made of the metal alloy containing Ag, a content of Ag in the second electrode is more than a sum of contents of all other elements in the second electrode.

Abstract: The present disclosure provides a nitrogen-containing heterocyclic compound having general formula (I) and an organic photoelectric apparatus thereof. where A1, A2, A3, A4, A5, A6, A7, and A8 are independently selected from a hydrogen atom, at least one compound having the general formula (II) and at least one compound having the general formula (III), where Y1, Y2, and Y3 are independently selected from C and N; R3 and R4 are independently selected from C6-30 aromatic group and C2-30 heterocyclic aromatic group, wherein X is selected from any one of oxyl group (—O—), sulfhydryl group (—S—), substituted or non-substituted imino group, substituted or non-substituted methylene group, and substituted or non-substituted silicylene group; R5, R6, R7, R8, R9, R10, R11, and R12 are independently selected from hydrogen, deuterium, C1-30 alkyl group, C6-30 aromatic group, or C2-30 heterocyclic aromatic group.

Abstract: An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The OLED display panel comprises a first substrate; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a first hole transport layer disposed on a surface of the first electrode layer far away from the first substrate, and including a plurality of hole transport units, wherein the plurality of hole transport units are arranged in correspondence with the plurality of first electrodes respectively; a plurality of light-emitting devices disposed on a surface of the first hole transport layer far away from the first electrode layer, wherein the plurality of the light-emitting devices are arranged in correspondence with the plurality of hole transport units respectively, and the hole transport units corresponding to the light-emitting devices of two different colors have different mobility; and a second electrode layer.

Abstract: The disclosure discloses an organic light-emitting display panel, a method for adjusting color temperature thereof, and a display device, and the organic light-emitting display panel includes: an underlying substrate, and a plurality of light-emitting elements arranged on the underlying substrate; each of the light-emitting elements includes a first electrode, a first light-emitting layer, a second electrode, a second light-emitting layer, and a third electrode arranged on the underlying substrate in that order in a light exit direction of the organic light-emitting display panel, where a wavelength of emitted light from the first light-emitting layer is greater than a wavelength of emitted light from the second light-emitting layer; and the first electrode, the second electrode, and the third electrode are connected respectively with different voltage signal terminals.

Abstract: The disclosure discloses an organic light-emitting diode, a display panel and a display device, where organic light-emitting diode includes an anode, a cathode, at least two light emitting layers arranged between the anode and the cathode, and a hole transport element and an electron transport element which are arranged between two adjacent light emitting layers. Where both the hole transport element and the electron transport element include at least two transport layers, and the volume concentration of the P-type material of the hole transport layer adjacent to the electron transport element is higher, and the volume concentration of the N-type material of the electron transport layer adjacent to the hole transport element is higher.

Abstract: An organic light emitting display device and an organic light emitting display apparatus are provided. The organic light emitting display device includes a first electrode and a second electrode disposed opposite to each other, a light emitting layer positioned between the first electrode and the second electrode, and a capping layer positioned on a surface of a side of the second electrode far away from the light emitting layer, the capping layer is formed as a single layer or superposition of a plurality of layers, the at least one layer of the capping layer is a composite layer, and the composite material of the composite layer comprises an organic material and a metal dopant.

Abstract: The application discloses an organic light-emitting diode for a display panel. The organic light-emitting diode includes an anode, a cathode, at least two emitting layers arranged between the anode and the cathode, and a charge generation layer arranged between every two adjacent emitting layers, wherein the charge generation layer includes a first layer unit and a second layer unit which are arranged in sequence, the first layer unit includes a hole injection material and a P-type semiconductor material doped in the hole injection material, and the second layer unit includes an electron transport material and ytterbium doped in the electron transport material, wherein a volume concentration of ytterbium doped in the electron transport material ranges from 1% to 5%.

Abstract: The disclosure discloses an organic light-emitting diode, a display panel and a display device. The organic light-emitting diode includes an anode, a cathode, at least two emitting layers arranged between the anode and the cathode, and a charge generation layer arranged between every two adjacent emitting layers, where the charge generation layer includes a first doping layer, an intermediate layer and a second doping layer which are arranged in sequence along the direction far away from the cathode, where the first doping layer includes a P-type semiconductor material, and the second doping layer includes a N-type semiconductor material; the P-type semiconductor material includes a P-type inorganic semiconductor material, a P-type metal dopant or a P-type organic semiconductor material, and the N-type semiconductor material includes a N-type inorganic semiconductor material, a N-type metal dopant or a N-type organic semiconductor material.

Abstract: An organic light-emitting display panel, a fabrication method thereof, and a display apparatus are provided. The organic light-emitting display panel comprises a substrate; a plurality of blocking structures disposed on the substrate, wherein a blocking structure has a first surface facing the substrate and an opposing second surface far away from the substrate; a plurality of first electrodes, wherein a first electrode is configured between adjacent blocking structures; an organic functional film layer covering at least one of the plurality of first electrodes and the plurality of blocking structures, wherein the organic functional film layer includes a light-emitting layer; and a degradation region disposed in a portion of the second surface of the blocking structure, wherein the degradation region degrades a carrier transportation in a portion of the organic functional film layer in which the portion of the organic functional film layer covers the degradation region.

Abstract: The present disclosure provides a nitrogen-containing heterocyclic compound having general formula (I) and an organic photoelectric apparatus thereof. where A1, A2, A3, A4, A5, A6, A7, and A8 are independently selected from a hydrogen atom, at least one compound having the general formula (II) and at least one compound having the general formula (III), where Y1, Y2, and Y3 are independently selected from C and N; R3 and R4 are independently selected from C6-30 aromatic group and C2-30 heterocyclic aromatic group, wherein X is selected from any one of oxyl group (—O—), sulfhydryl group (—S—), substituted or non-substituted imino group, substituted or non-substituted methylene group, and substituted or non-substituted silicylene group; R5, R6, R7, R8, R9, R10, R11, and R12 are independently selected from hydrogen, deuterium, C1-30 alkyl group, C6-30 aromatic group, or C2-30 heterocyclic aromatic group.

Abstract: A compound and an organic optoelectronic device are provided. The compound has the following chemical formula (I): chemical formula (I). In the chemical formula (I), X1 to X2 are independently selected from O, S, and substituted or unsubstituted methylene, and a substituent is selected from hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl. X3 is selected from O, S, substituted or unsubstituted methylene, substituted or unsubstituted methylene, and substituted or unsubstituted silylene, and a substituent is selected hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl. R1 to R17 are independently selected from hydrogen, deuterium, C1 to C30 alkyl, C1 to C30 heteroatom-substituted alkyl, C6 to C30 aryl, and C2 to C30 heteroaryl.

Abstract: The present application discloses an organic light-emitting display panel and a manufacturing method thereof, and an organic light-emitting display device. The organic light-emitting display panel comprises a substrate, a first electrode layer, a second electrode layer, an organic light-emitting functional layer formed between the first electrode layer and the second electrode layer and comprising a plurality of first optical adjustment units, a plurality of second optical adjustment units and at least one light emitting layer covering a display area of the organic light-emitting display panel, and a pixel definition layer partitioning the organic light-emitting functional layer to form a pixel array comprising a first color pixel, a second color pixel and a third color pixel in an array arrangement.

Abstract: The present disclosure provides a nitrogen-containing heterocyclic compound having a general formula (I) and an organic photoelectric apparatus thereof. The general formula (I) is: wherein A1, A2, A3, A4, A5, A6, A7, A8, A9, and A10 are independently selected from a hydrogen atom, a nitrile group and a function group having a general formula (II), and A1, A2, A3, A4, A5, A6, A7, A8, A9, and A10 include at least one nitrile group and at least one function group having the general formula (II), the general formula (II) being: wherein R1, R2, R3, R4, R5, R6, R7, and R8 are independently selected from hydrogen atoms, deuterium atoms, C6-30 aromatic group and C2-30 heterocyclic aromatic group.

Abstract: The present application discloses an organic light-emitting device and a display device. The organic light-emitting device comprises an anode, a cathode, and a blue light emitting layer, a green light emitting layer and a red light emitting layer between the anode and the cathode, and the blue light emitting layer comprises a blue thermally-activated delayed fluorescent material with a mass percent of 60-80%, the green light emitting layer comprises a green phosphorescent material and/or a green thermally-activated delayed fluorescent material, and the red light emitting layer comprises a red phosphorescent material and/or a red thermally-activated delayed fluorescent material.

Abstract: Disclosed are an organic light-emitting display panel and an organic light-emitting display device. The organic light-emitting display panel comprises: a substrate, a second electrode, a light-emitting layer, a first hole transport layer and a first electrode that are successively laminated, wherein, the materials of both the first electrode and the second electrode are silver or silver-containing metallic materials, the material of the first hole transport layer is a conductive material doped with a P-type semiconductor material and a P-type semiconductor material layer is set between the first hole transport layer and the first electrode.

Abstract: An organic light-emitting display panel and an organic light-emitting display device are disclosed, wherein the organic light-emitting display panel includes: a substrate, a cathode, a first auxiliary functional structure, a light-emitting structure and an anode that are successively laminated; wherein, the material of both the anode and the cathode is silver or a silver-containing metallic material, and a micro-cavity structure is formed between the cathode and the anode; the first auxiliary functional structure includes at least one of an electron injection layer, an electron transport layer and a hole blocking layer, and the first auxiliary functional structure is multiplexed as a micro-cavity length adjusting structure.

Abstract: The present disclosure relates to an OLED display panel. With the OLED display panel, a higher luminous efficiency is achieved by selecting a thermally activated delayed fluorescent material for doping into an organic light emitting layer and applying a compound having a specific energy level to match, thereby the luminous efficiency of an organic photo electronic device is improved.

Abstract: A nitrogen-containing heterocyclic compound having a general formula (I) and an organic photoelectric apparatus are provided. The compound of general formula (I) is: wherein A1 to A4 are independently selected from a hydrogen atom, a function group having a general formula (II); A1 to A4 include at least one function group having the general formula (II); R1 and R2 are independently selected from one of hydrogen, deuterium, C1-30 alkyl group, C6-30 aromatic group and C2-30 heterocyclic aromatic group; Y1 and Y2 are independently selected from substituted or non-substituted C and N, the general formula (II) being: wherein X is selected from one of oxyl group (—O—), sulfhydryl group (—S—), substituted or non-substituted imino group, substituted or non-substituted methylene group, and substituted or non-substituted silicylene group; and R3 to R10 are independently selected from one of hydrogen, deuterium, C1-30 alkyl group, C6-30 aromatic group, and C2-30 heterocyclic aromatic group.

Abstract: In accordance with embodiments of the present disclosure, a multi-mode switching power converter may include a power inductor, a first switch coupled between a first terminal of the power inductor and a first supply terminal having a first voltage, a second switch coupled between the first terminal of the power inductor and a second supply terminal having a second voltage, a full bridge comprising a plurality of switches and having an output for producing the output voltage comprising a first output terminal and a second output terminal, wherein a first input of the full bridge is coupled to a second terminal of the power inductor and a second input of the full bridge is coupled to one of the first supply terminal and the second supply terminal, and a capacitor coupled between the first output terminal and the second output terminal.

Abstract: The present disclosure relates to an OLED display panel, comprising a first electrode and a second electrode, a light emitting layer and a first auxiliary light emitting layer disposed between the first electrode and the second electrode, the first auxiliary light emitting layer is disposed between the light emitting layer and the second electrode, wherein the first auxiliary light emitting layer includes at least a first electron-type auxiliary light emitting layer, wherein the first electron-type auxiliary light emitting layer includes a host material and a metal element doped in the host material; the host material has at least one pyridyl group and an aromatic group conjugated to the at least one pyridyl group; and the glass transition temperature of the host material is ?90° C. The present disclosure can improve the luminous efficiency and lifetime of an organic photoelectronic device and reduce its voltage by using this method.