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Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, organic EL lighting, and manufacturing method for organic electroluminescent element

專利號(hào)
US12133453B2
公開(kāi)日期
2024-10-29
申請(qǐng)人
Mitsubishi Chemical Corporation（JP Tokyo）
發(fā)明人
Yanjun Li; Tomokazu Umemoto; Hideki Gorohmaru; Koichiro Iida; Kouji Adachi
IPC分類
H01L51/50; C08G73/02; C09K11/06; H10K85/10; H10K50/11; H10K50/15; H10K50/17; H10K71/00; H10K71/12; H10K85/60
技術(shù)領(lǐng)域
group,ring,polymer,aromatic,preferably,formula,layer,or,compound,in
地域： Tokyo

摘要

Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer. The polymer contains a repeating unit represented by the following Formula (1) or a repeating unit represented by the following Formula (2) (wherein, Ar1 and Ar2 each represent an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; X represents —C(R7)(R8)—, —N(R9)—, or —C(R11)(R12)—C(R13)(R14)—; R1 and R2 as well as R3 and R6 each independently represent an alkyl group optionally having a substituent; R4 and R5 each independently represent an alkyl group optionally having a substituent, an alkoxy group optionally having a substituent, or an aralkyl group optionally having a substituent; and R7 to R9 and R11 to R14 each independently represent hydrogen, an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aromatic hydrocarbon group optionally having a substituent).

說(shuō)明書

In the present invention, the term “wet film-forming method” refers to a film formation method, namely a method of forming a film by a wet process in which a coating method, such as spin coating, dip coating, die coating, bar coating, blade coating, roll coating, spray coating, capillary coating, ink-jet coating, nozzle printing, screen printing, gravure printing or flexographic printing, is employed, and the resulting coating film is subsequently dried. Among such film formation methods, for example, spin coating, spray coating, ink-jet coating, and nozzle printing are preferred.

As one example of the structure of the organic electroluminescent element of the present invention, the FIGURE is a schematic view (cross-section) illustrating a structural example of an organic electroluminescent element 8. In the FIGURE, the symbols 1, 2, 3, 4, 5, 6, and 7 represent a substrate, an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode, respectively.

One exemplary embodiment of the organic electroluminescent element of the present invention, including the layer constitution and general formation methods of the respective layers, will now be described referring to the FIGURE.

[Substrate]

權(quán)利要求

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