Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.

Keyan Bai

Jiajia Luo

Yanjie Wang

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.

Hole transport material, manufacturing method thereof, and electroluminescent device

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:

Organic compound, preparation method thereof, and display panel

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.

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.

Oxygen heterocyclic compound, application thereof and electronic device using the same

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.

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Wuhan, China

Keyan Bai