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

Other

Semiconductor Display Technology Co., Ltd.

Wuhan China Star Optoelectronics

Jiajia Luo

Xianjie Li

Jinchang Huang

Lin Y Yang

Yu Gu

Yamei Bai

Xu Wang

Qu Zhang

Munjae Lee

Lin Yang

Shuxing Yan

Yanjie Wang

Keyan Bai

Kailong Wu

A display panel and manufacturing method thereof are provided. The display panel includes a substrate, a first electrode, a hole injection layer, a hole transport layer, an electron blocking layer, an organic electroluminescent layer, a hole blocking layer, an electron transport layer, an electron injection layer, and a second electrode arranged sequentially. The electron blocking layer corresponding to a green sub-pixel region of the organic electroluminescent layer is made of a p-type green light host material. Accordingly, the present invention effectively simplifies a manufacturing process, adjusts and balances charge carriers, and improves device performance.

Display panel and manufacturing method thereof

Provided is a display panel, comprising a flexible substrate, a transition layer, a buffer layer, a drive layer, a functional layer, and a thin-film encapsulation layer. The transition layer covers one side of the flexible substrate; the buffer layer covers one side, away from a rigid carrier, of the transition layer; the drive layer covers one side, away from the transition layer, of the buffer layer; the functional layer covers one side, away from the buffer layer, of the drive layer; and the thin-film encapsulation layer covers the surface of the functional layer. According to the invention, a sulfydryl-containing transition layer is modified on a flexible substrate by means of sulfydryl modification to realize tight adhesion between the flexible substrate and a buffer layer in a drive layer, so that the adhesion force between the flexible substrate and the buffer layer is greatly enhanced by means of chemical adsorption.

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

The invention relates to a high-performance sky blue thermally activated delayed fluorescent material, manufacturing method thereof, and application thereof, which solves the problems of the prior art. Through clever molecular design, a series of sky-blue thermally activated delayed fluorescent materials with less singlet-triplet energy level difference, high luminous efficiency, and fast-rate reverse intersystem crossing constant were synthesized, while fine-tuning of the structure and spectrum thereof were realized.

High-performance sky blue thermally activated delayed fluorescent material, manufacturing method thereof, and application thereof

The present disclosure relates to the field of organic light-emitting materials, and more particularly, to a blue thermally activated delayed fluorescence material, a synthesis method thereof, and use thereof. The blue thermally activated delayed fluorescence material has a following structural formula:

Blue thermally activated delayed fluorescence material, synthesis method thereof, and use thereof

A thermally activated delayed fluorescence green light polymer material and an organic electroluminescent device thereof are provided. The thermally activated delayed fluorescence green light polymer material is based on a boron-containing structure, an overall charge transfer strength is adjusted through different electron donor units, so as to synthesize a series of green light thermally activated delayed fluorescence materials with low single-triplet energy level differences, high luminous efficiency, and fast reverse intersystem crossing constants, while realizing the fine-tuning of the electron-donor ability of the electronic donor unit to make the spectrum fine-tune.

Thermally activated delayed fluorescence green polymer material and preparation method thereof

A P-type dopant is provided, which is a planar aromatic compound having different numbers of fluorine atoms and cyano groups connected at a periphery thereof, and allows adjustment of highest occupied molecular orbital (HOMO) energy levels and lowest unoccupied molecular orbital (LUMO) energy levels and effectively increases luminous efficiency of a light emitting layer. Moreover, an organic light emitting diode is disclosed, including an anode, a cathode, and a light emitting structure located between the anode and the cathode, wherein a hole injecting layer of the light emitting structure is a hole injecting layer including the P-type dopant described above.

P-type dopant and organic light emitting diode

An N heterocyclic planar photocoupler output material is provided, and includes a structural formula as follows:R&#x2014;R&#x2014;R.The N heterocyclic planar photocoupler output material is selected from any one of following formula structures: The photocoupler output material has a very high 'n' value, so that the top-emitting electroluminescent devices using it have achieved very high luminous efficiency. Therefore, it saves time and costs. Also, a method of preparing an N heterocyclic planar photocoupler output material is provided.

N heterocyclic planar photocoupler output material and method of preparing thereof

The present invention provides a hole transport material, a preparation method thereof, and an electroluminescent device. Through ingenious molecular design, a xanthracene structure is combined with different electron-donating groups to synthesize a series of hole transport materials with a suitable highest occupied molecular orbital (HOMO) energy level and a suitable lowest unoccupied molecular orbital (LUMO) energy level, and a series of high-performance display devices can be manufactured using the hole transport materials provided by the present invention.

Hole transport material, preparation method thereof, and electroluminescent device

An organic compound and a manufacturing method thereof, and an organic light emitting diode electroluminescent device are provided. The organic compound has a suitable HOMO energy level and a high hole mobility. Compared with traditional hole transport materials, when the organic compound is applied in a hole transport layer of the organic light emitting diode electroluminescent device, the organic light emitting diode electroluminescent device has enhanced maximum current efficiency, maximum external quantum efficiency, and service lifespans.

Organic compound and manufacturing method thereof, and organic light emitting diode electroluminescent device

The present disclosure provides a hole transporting material, a method for preparing the same, and an electroluminescent device. The hole transporting material includes a compound of formula (I): A series of the hole transport materials with suitable HOMO/LUMO energy levels are synthesized by using bridged dihydrophenazine as a basis and different functional groups. Such materials can be applied to an organic electroluminescent device to improve mobility of a hole transport layer and thus improve luminous efficiency of the organic electroluminescent device.

Hole transporting material, method for preparing same, and electroluminescent device

The present disclosure relates to the field of organic light-emitting materials, and more particularly, to a thermally activated delayed fluorescence material having red, green, or blue color, a synthesis method thereof, and application thereof. The thermally activated delayed fluorescence material having red, green, or blue color has the following structural formula: 

Thermally activated delayed fluorescence material having red, green, or blue color, synthesis method thereof, and application thereof

A thermally activated delayed fluorescent (TADF) deep-red light polymer material is provided, and includes a main chain to polymerize a TADF molecular structure, and a side chain to connect with an alkyl chain. The TADF polymer material of this structure has excellent TADF characteristics and solubility. Further, the material can be used to fabricate an electroluminescent device by a solution processing, and a good device effect can be obtained.

Thermally activated delayed fluorescent deep-red light polymer material and method of fabricating same

A green light thermally activated delayed fluorescent material and a synthesizing method thereof, and an electroluminescent device are described. The green light thermally activated delayed fluorescent material is a target compound reacted and synthesized by an electron donor and an electron acceptor. The target compound is a D-A molecular structure. The electron acceptor has a fluorine-containing group and a bromine-containing group. The electron acceptor is a planar electron acceptor with an ultra-low triplet state energy level, and a triplet state energy level of the target compound ranges from 1.0 to 2.0 eV. The synthesized green light thermally activated delayed fluorescent material improves a luminous efficiency and realizes a preparation of a high efficiency organic electroluminescent device.

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Wuhan, China

Jiajia Luo