Wuhan Tianma Micro-electronics Co., Ltd

Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Shanghai Tianma Am-oled Co., Ltd.

Xiamen Tianma Micro-electronics Co., Ltd.

Wenjing Xiao

Lei Zhang

Jinghua Niu

Wei Gao

Wenpeng Dai

Quan Ran

Ping An

Xia Li

Yi Liu

Yan Lu

Hongyan Zhu

Lu Zhai

Sha Lin

The present disclosure belongs to technical field of OLEDs, and provides a compound suitable as a hole transport material and an electron blocking material of OLEDs. The compound has a general structure according to [Chemical Formula 1], in which Arand Arare each independently selected from a hydrogen atom, a substituted or unsubstituted C5-C40 aryl, or a substituted or unsubstituted C5-C40 heteroaryl; m and n are each an integer independently selected from 0, 1, or 2; X is selected from O, S, or —NR—; R is selected from hydrogen, or a substituted or unsubstituted C5-C40 aryl; Arhas a structure according to [Chemical Formula 2], in which R-Rare each independently selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl; Y is selected from O, S, or —NR'—; and R′ is selected from a hydrogen atom, or a substituted or unsubstituted C5-C40 aryl.

Compound, display panel, and display device

An organic compound has a structure as shown in Formula (I). The compound has a phosphorus-oxygen five-membered ring combined with a five-membered ring as an electron acceptor unit. The compound has a high luminous efficiency and a lower material cost than phosphorescent metal complexes. The compound can be built into a stack structure of organic optoelectronic device, such as OLED. The resultant organic optoelectronic device includes an anode, a cathode, and at least one organic thin film located between the anode and the cathode, the organic thin film contains the compound as shown in Formula (I).

Compound and its application

The display panel includes a plurality of light-emitting areas and a plurality of non-light-emitting areas, the plurality of light-emitting areas being space apart from each other by the plurality of non-light-emitting area; light-emitting elements each located in one of the plurality of light-emitting areas and including an anode and a cathode that are opposite to each other, and a light-emitting layer located therebetween; a cover layer covering a light-emission side of the light-emitting element. The cover layer includes a substrate and first dopants doped in the substrate, the first dopants are magnetic. When an external magnetic field intensity applied to the cover layer is changed by an amount greater than a preset magnetic field intensity, the first dopants in the substrate are rearranged from a first mode to a second mode.

Display panel, preparation method thereof and display device

The present disclosure provides a compound having a formula (I): wherein Crepresents substituted or unsubstituted C5-C40 aryl; X represents oxygen atom or sulfur atom; Lis selected from substituted or unsubstituted C5-C40 aryl, or substituted or unsubstituted C3-C40 heteroaryl; A includes a structure represented by formula (II): wherein each of Land Lis independently selected from substituted or unsubstituted C5-C40 aryl, or substituted or unsubstituted C3-C40 heteroaryl; each of Ar, Ar, and Aris independently selected from substituted or unsubstituted C5-C40 aryl, substituted or unsubstituted C3-C40 heteroaryl, or substituted or unsubstituted arylamine containing one or two nitrogen atoms; each of m, q, and r is independently selected from 0 or 1; and * indicates a connection position.

Compound, organic electroluminescent device, and display device

Provided is a compound represented by formula 1, and a display panel and a display apparatus including the compound. In formula 1, Land Lare each independently selected from the group consisting of a single bond, C6-C30 aryl, and C4-C30 heteroaryl; a and b are each independently selected from 0, 1, 2, 3, or 4; Dand Dare each independently a nitrogen-containing electron donor unit selected from the group consisting of carbazolyl and derivative groups thereof, acridinyl and derivative groups thereof, diarylamino and derivative groups thereof, and triarylamino and derivative groups thereof; and c and d are each independently selected from 0, 1, 2, 3, or 4, and c+d&#x2265;1.

Compound, display panel and display apparatus

A compound having a structure represented by Formula I, and an organic electroluminescent device and an electronic apparatus including the same. The compound may be used as a hole transport material of an organic electroluminescent device. The compound provided by the present disclosure has a shallow LUMO, an appropriate HOMO energy level and a high triplet energy level E, and can effectively improve hole transport ability, and block electron transition and exciton transport; meanwhile, the compound has high electron mobility, and excellent thermal stability and thin film stability. The compound provided by the present disclosure is used as the hole transport material of an organic electroluminescent device, so that the material has good solubility and appropriate mobility and the inter-pixel cross-talk is effectively avoided, which is conducive to improving light emitting efficiency and lifetime of the device.

Compound, organic electroluminescent device including the same and electronic apparatus

A compound having a structure shown in Chemical Formula 1 is described. In an embodiment, Ar is C6-C20 aryl or C5-C20 heteroaryl; Dand Dare electron-donating groups, Aand Aare electron-accepting groups, and m, n, p and q are 1, 2, or 3; Dand Dare a substituted or unsubstituted C1-C20 alkyl, a substituted or unsubstituted C3-C20 cycloalkyl, a substituted or unsubstituted C1-C20 alkoxy, a substituted or unsubstituted C3-C20 heterocyclic group, a substituted or unsubstituted C6-C40 aryl, a substituted or unsubstituted C4-C40 heteroaryl, a substituted or unsubstituted C10-C60 fused aryl, a substituted or unsubstituted C10-C60 fused heteroaryl, a substituted or unsubstituted C12-C40 carbazolyl, a substituted or unsubstituted C12-C40 diphenylamino group, or a C13-C40 acridinyl; and Aand Aare each a nitrogen-containing heterocyclic group, a cyano-containing group, a carbonyl-containing group, a sulfone-based group, and a phosphoroso-containing group.

Compound, display panel, and display apparatus

The present disclosure provides an organic compound, having a structure represented by Formula 1, in which L, L, and Lare each independently selected from a single bond, or C4-C30 arylene; X, X, and Xare each independently selected from CRa, or N, and at least one of X, X, or Xis N; Ar, Ar, and Arare each independently selected from C6-C60 aryl, a structure represented by Formula 2, or a structure represented by Formula 3; at least one of Ar, Ar, or Aris the structure represented by Formula 2, and at least one of Ar, Ar, or Aris the structure represented by Formula 3; X, X, X, and Xare each independently selected from CRb, or N, and at least one of X, X, X, or Xis N; # indicates a bonding position; and Ra and Rb are specifically defined in the specification.

Organic compound, display panel and display apparatus

The present disclosure provides a compound for a display panel. The compound includes elements selected from O, S or N, electron-donor groups and electron-accepting groups. The OLED device in the display panel includes an anode, a cathode, and at least one organic thin film layer between the anode and the cathode. The organic thin film layer includes a light emitting layer, the light emitting layer includes the compound of the present disclosure, and the compound is used to be any one of a host material, a doping material, and a co-doping material. The compound reduces energy level difference between singlet and triplet states &#x394;Ethrough design of the compound molecular structure. The compound realizes an efficient reverse intersystem crossing process, has typical TADF characteristics, and can be used as a light-emitting layer material of an OLED device to improve luminous efficiency and working life.

Compound, a display panel and an electronic device

Provided are a compound and an organic electro-optical device containing the same. The compound has a structure represented by Formula I. The organic electro-optical device comprises an anode, a cathode, and at least one organic thin film layer located between the cathode and the anode. The molecule of the compound provided by the present disclosure has higher rigidity, a large conjugated system, a deeper LUMO energy level, a higher triplet energy level and good molecular stability, and is not easy to crystallize, and thus the compound can be used as an electron transport material or a hole blocking material of the organic electro-optical device, facilitating the reduction of the turn-on voltage of the device, the improvement of current efficiency and the increase of service life.

Compound and organic electro-optical device containing the same

The present disclosure relates to a compound, an organic electroluminescent device, and a display device. The compound has a structure of formula (I) 

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Shanghai, China

Wenjing Xiao