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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(zhuān)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(lèi)
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(shū)

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At this point, the substrate on which up to the vapor deposition of the electron transport layer 6 had been completed was taken out and set in another vapor deposition apparatus. As a mask for cathode vapor deposition, a striped shadow mask having 2 mm-wide stripes was tightly attached to the substrate in such a manner that the stripes were arranged perpendicular to the ITO stripes of the anode 2, and the inside of the apparatus was evacuated to a degree of vacuum of 2.3×10?4 Pa or lower.

Next, as a cathode 7, aluminum was heated in a molybdenum boat, and an 80 nm-thick aluminum layer was formed in the same manner while controlling the vapor deposition rate in a range of 1.0 to 4.9 ?/sec. During this vapor deposition, the degree of vacuum was 2.6×10?4 Pa.

Subsequently, in order to prevent deterioration of the resulting organic electroluminescent element by the moisture and the like in the atmosphere during storage, a sealing treatment was performed by the following method.

In a nitrogen glove box, a photocurable resin 30Y-437 (manufactured by ThreeBond Holdings Co., Ltd.) was applied to the periphery of a 23 mm×23 mm glass plate at a width of about 1 mm, and a moisture getter sheet (manufactured by Dynic Corporation) was placed on the center of the glass plate. The substrate on which the cathode formation had been completed was pasted thereon such that the vapor-deposited surface faced the desiccant sheet. Thereafter, UV light was irradiated only to the region coated with the photocurable resin so as to cure the resin.

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