Shanghai Tianma Am-oled Co., Ltd.

Wuhan Tianma Micro-electronics Co., Ltd

Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch

Tianma Micro-electronics Co., Ltd.

Xiamen Tianma Micro-electronics Co., Ltd.

Jinghua Niu

Xiangcheng Wang

Wei Gao

Lei Zhang

Wenpeng Dai

Yuji Hamada

Shuang Cheng

Wei He

Ping An

Ying Liu

Qing Zhu

Wenjing Xiao

Gaojun Huang

Chen Liu

Yan Lu

Yinhe Liu

Zhihong Lei

Jun Lin

Quan Ran

Hongyan Zhu

Wanming Hua

Mingzhi Dai

Xia Li

Dongyang Deng

Lei Wen

Jianyun Wang

Lei Lv

Weili Qiao

Run Yang

Ding Li

Honggang Yan

Honghu Ma

Xiaoqian Sun

Zhi Zhang

Yuhao Liu

Huihui Ma

Angran Zhang

Hamada Yuji

Xueqiang Luo

Xiaoxi Na

Yibin Xing

Tiezhen Gao

Jie Li

Yi Liu

Hongyang Ren

Yang Li

Lu Zhai

Sha Lin

Miao Wang

Peng Shu

Changxuan Fan

Ruixuan Dang

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

The present disclosure relates to the technical field of OLED, and provides a compound having TADF property. In an embodiment the compound has a structure according to Formula (1), in which X-Xare each independently selected from a carbon atom and a nitrogen atom, and at least one of X-Xis a nitrogen atom; R-Rare each selected from the group consisting of a hydrogen atom, a fluorine atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron-accepting group, and an electron-donating group; at least one of R-Ris an electron-donating group or an electron-accepting group, and at least one of R-Ris an electron-donating group or an electron-accepting group; when each of R-Ris an electron-accepting group, at least one of R-Ris an electron-donating group, and each of R-Ris an electron-donating group, at least one of R-Ris an electron-accepting group.

Compound, display panel and display apparatus

Provided are a nitrogen-heterocyclic compound, a display panel and a display apparatus. In an embodiment, the compound has a structure of Chemical Formula 1, in which Xand Xare each C or N, and at least one of Xand Xis N; Xto Xare N or —CR, and one, two, three or four of Xto Xare N, where Ris hydrogen, deuterium, a substituted or unsubstituted C1-C20 alkyl, C1-C20 alkoxy, C1-C20 thioalkyl, C6-C30 aryl, or C3-C30 heteroaryl; and Ris independently present or forms an aliphatic ring, an aromatic ring, or a heteroaromatic ring with adjacent carbon atoms; Arand Arare each C6-C30 aryl or C3-C30 heteroaryl; and Land Lare each a single bond, C6-C30 arylene, or C3-C30 heteroarylene. The compound is suitable as a CPL material to improve external quantum efficiency (EQE) of an organic light-emitting device and light-emitting efficiency.

Nitrogen-heterocyclic compound, display panel and display apparatus

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

Provided are a compound, an organic light-emitting element including the same, a display panel and a display device. The compound has a structure represented by Formula I. The organic light-emitting element includes an anode, a cathode and an organic thin film layer disposed between the anode and the cathode; where the organic thin film layer includes a light-emitting layer, and further includes any one or a combination of at least two of a hole transport layer, an electron blocking layer and an auxiliary light-emitting layer, and at least one of the hole transport layer, the electron blocking layer and the auxiliary light-emitting layer contains at least one of the compounds. The compound has a relatively shallow HOMO energy level, a relatively shallow LUMO energy level, a relatively high triplet energy level, an appropriate hole mobility, a relatively high T, a large molecular torque and good thermal stability.

Compound, organic light-emitting element including the same, display panel and display device

Provided are a boron-silicon heterocyclic compound having a structure represented by formula 1, a display device and a display apparatus. In formula 1, Land Lare each a single bond, C6-C30 arylene, C6-C30 fused arylene, C4-C30 heteroarylene, or C4-C30 fused heteroarylene; Dand Dare each a substituted or unsubstituted C6-C60 aryl, a substituted or unsubstituted C4-C60 heteroaryl, a substituted or unsubstituted C10-C60 fused aryl, a substituted or unsubstituted C8-C30 fused heteroaryl, or a substituted or unsubstituted diphenylamino. The compound has a strong inductive effect and can reduce the driving voltage of the device. The silacyclopentadiene having a silicon atom as spiro-atom can effectively improve the solubility of the material, which is beneficial to the cleaning of the vapor deposition mask. In addition, the compound has a higher triplet energy level to effectively transfer energy to the luminous body, and improves the efficiency of the device.

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

A compound having a D-(&#x3c0;)-&#x3c3;-(&#x3c0;)-A chemical structure and improving brightness and efficiency of light-emitting is described. In an embodiment, the compound has a chemical structure according to Formula (I), in which Land Lare each at least one of a single bond, C1-C20 alkylene, C3-C20 cycloalkylene, C3-C20 heterocyclic alkylene, C6-C40 arylene, C4-C40 heteroarylene, C10-C60 fused arylene, or C10-C60 fused heteroarylene; the electron donor D is C1-C20 alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C3-C20 heterocyclic group, C6-C40 aryl, C4-C40 heteroaryl, C10-C60 fused arylene, C10-C60 fused heteroarylene, C12-C40 carbazolyl and its derivative groups, C12-C40 diphenylamino and its derivative groups, C18-C60 triphenylamino and its derivative groups, or C12-C40 acridinyl and its derivative groups; and the electron acceptor A is a nitrogen-containing heterocyclic group, a cyano-containing group, a triarylboron-based group, a benzophenone-based group, an aromatic heterocyclic ketone-based group, a sulfone-based group, or a phosphoroso-containing groups.

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.

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 relates to the field of organic electroluminescence materials and particularly relates to a compound and an organic light emitting display device. The compound has a structure represented by Formula (I): and, m, n, p, q, r, s, u, and v are each independently selected from 0 or 1, at least one of r and s is 1, at least one of u and v is 1, L, L, L, and Lare each independently selected from substituted or unsubstituted C6-C40 aryl, or substituted or unsubstituted C3-C40 heterocyclyl, and A, A, A, and Aeach are independently selected from an electron acceptor unit.

Compound and organic light emitting display device

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 invention relates to a compound, a display panel and a display device. The compound has a structure represented by Formula I. The compound takes a spiro structure as a non-conjugated connecting unit, and a boron-containing group as an electron-accepting group. A light-emitting compound obtained by taking the group as a building block has a narrower half-peak width and higher color purity. The boron-containing spiro structure is connected with an electron-donating group to obtain a bipolar compound, and as a thermal activation delay fluorescence material, the bipolar compound can be used a light-emitting layer material, particularly a doped material, and can also be used as a fluorescent host material or a phosphorescent host material. The compound provided herein can achieve low drive voltages and high luminescence efficiencies when applied to organic electroluminescent devices.

Compound, a display panel and a display device

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Shanghai, China

Jinghua Niu