Abstract: Embodiments of the present invention disclose an organic compound, a preparation method thereof, and a display panel. The organic compound is represented by the following general formula: wherein Ar comprises any one or a combination of hydrogen, an isotope of hydrogen, an aromatic group, an arylamine group, a heteroarylamine group, and a fused ring group; and R1 and R2 are each independently any one or a combination of alkyl, alkoxy, heteroalkyl, and an aromatic group. In the embodiments of the present invention, by adding other electron-donating groups on the basis of a phenazine-fused fluorene structure, organic compounds with high mobility are obtained.

Abstract: The present invention relates to a series of organic electroluminescent materials containing B—N fused rings, which has a structure represented by Formula (I). Based on the principle of thermally activated delayed fluorescence (TADF), the materials have internal quantum efficiency of 100%. In addition, by utilizing a multiple resonance effect between B—N, the materials have small half-wave width and good color purity. With introduction of indolo[3,2,1-JK]carbazole, the multiple resonance effect is further enhanced, and the luminous efficiency and the color purity are significantly improved. Moreover, such compounds have good thermal stability and meet requirements of OLED panels for luminescent materials. The present invention further provides an organic electroluminescent device, and at least one of organic layers in the device contains the compound represented by Structural Formula (I).

Abstract: Embodiments of the present invention disclose an organic compound, a preparation method thereof, and a display panel. The organic compound is represented by the following general formula: wherein a structure of the organic compound includes at least one of Ar1, Ar2, Ar3, or Ar4, any one of Ar1, Ar2, Ar3 and Ar4 includes any one or a combination of hydrogen, an isotope of hydrogen, an aromatic group, an arylamine group, a heteroarylamine group, and a fused ring group. In the embodiments of the present invention, by adding other electron-donating groups on the basis of a structure of phenazine acridine, organic compounds with high mobility are obtained.

Abstract: The present disclosure provides an oxygen heterocyclic compound, an application thereof, and an electronic device using the same. The oxygen heterocyclic compound has a structural formula as represented by following formula 1: The oxygen heterocyclic compound comprises an aromatic amine portion and an oxygen heterocyclic portion. The aromatic amine portion effectively promotes the hole injection and transport performance. The oxygen heterocyclic portion is conducive to the formation of molten evaporation materials.

Abstract: The present application discloses a tetrastyrene-based compound, an application thereof, and an electronic device using the same. The tetrastyrene-based compound has a general structural formula as shown in the following Formula 1: The tetrastyrene-based compound includes an aromatic amine and a rigid tetrastyrene structure, wherein the aromatic amine can effectively improve the hole injection and transport performance, and the rigid tetrastyrene structure is conducive to the formation of evaporation materials of melting type.

Abstract: Embodiments of the present invention disclose an organic compound, a preparation method thereof, and a display panel. The organic compound is represented by the following general formula: wherein Ar comprises any one or a combination of hydrogen, an isotope of hydrogen, an aromatic group, an arylamine group, a heteroarylamine group, and a fused ring group; and R1 and R2 are each independently any one or a combination of alkyl, alkoxy, heteroalkyl, and an aromatic group. In the embodiments of the present invention, by adding other electron-donating groups on the basis of a phenazine-fused fluorene structure, organic compounds with high mobility are obtained.

Abstract: Embodiments of the present invention disclose an organic compound, a preparation method thereof, and a display panel. The organic compound is represented by the following general formula: wherein a structure of the organic compound includes at least one of Ar1, Ar2, Ar3. or Ar4, any one of Ar1, Ar2, Ar3 and Ar4 includes any one or a combination of hydrogen, an isotope of hydrogen, an aromatic group, an arylamine group, a heteroarylamine group, and a fused ring group. In the embodiments of the present invention, by adding other electron-donating groups on the basis of a structure of phenazine acridine, organic compounds with high mobility are obtained.

Abstract: A hole transport material, a manufacturing method thereof, and an electroluminescent device are provided. A main chain of a molecular structure of the hole transport material includes spiro aromatic amine, and a branch chain of the molecular structure of the hole transport material includes an aryl group or a heteroaryl group. The hole transport material can effectively improve performance of hole injection and hole transport, thereby balancing electrons and holes in electroluminescent devices and realizing relatively low voltage and relatively high efficiency.

Abstract: The present disclosure provides an oxygen heterocyclic compound, an application thereof, and an electronic device using the same. The oxygen heterocyclic compound has a structural formula as represented by following formula 1: The oxygen heterocyclic compound comprises an aromatic amine portion and an oxygen heterocyclic portion. The aromatic amine portion effectively promotes the hole injection and transport performance. The oxygen heterocyclic portion is conducive to the formation of molten evaporation materials.

Abstract: The present application provides a blue fluorescent material and an OLED display panel, wherein the blue fluorescent material is a tetrahedral structure formed by simultaneously connecting a tert-butyl pyrene and a charge carrier transport unit to a same carbon of cyclohexane; wherein the tert-butyl pyrene increases an external quantum efficiency of the OLED display panel, and the tetrahedral structure increases distance between activated particles and reduces a concentration quenching. The charge carrier transport unit improves a balance of the carrier transfer and alleviates a problem that the current OLED display panel has a low luminous efficiency of the blue light material.

Abstract: The present application provides a blue fluorescent material and an OLED display panel, wherein the blue fluorescent material is a tetrahedral structure formed by simultaneously connecting a tert-butyl pyrene and a charge carrier transport unit to a same carbon of cyclohexane; wherein the tert-butyl pyrene increases an external quantum efficiency of the OLED display panel, and the tetrahedral structure increases distance between activated particles and reduces a concentration quenching. The charge carrier transport unit improves a balance of the carrier transfer and alleviates a problem that the current OLED display panel has a low luminous efficiency of the blue light material.

Abstract: The present disclosure provides a poly(spirobifluorene) having a structure represented by Formula (I). In the present disclosure, a polymer containing carbazolyl spirobifluorene is synthesized by introducing a carbazolyl group at a side chain of a spirobifluorene. No intramolecular charge transfer from a main chain to a side chain occurs in the carbazolyl spirobifluorene polymer prepared in the present disclosure. And the polymer has a good hole transport capability due to the modification with carbazole, and a good device efficiency can be achieved while retaining the advantage of the color purity of pure blue light. Meanwhile, by introducing an aromatic group to the poly(spirobifluorene) of the present disclosure, emission of three primary colors of blue, green and red can be obtained, and a good device efficiency can be achieved.