US 11,706,943 B2
Organic electroluminescent element and method for producing same
Kouki Kase, Tokyo (JP); Takeshi Yamamoto, Tokyo (JP); Kazuyuki Suruga, Tokyo (JP); Shunji Mochizuki, Tokyo (JP); and Shuichi Hayashi, Tokyo (JP)
Assigned to HODOGAYA CHEMICAL CO., LTD., Tokyo (JP)
Appl. No. 16/954,913
Filed by HODOGAYA CHEMICAL CO., LTD., Tokyo (JP)
PCT Filed Dec. 21, 2018, PCT No. PCT/JP2018/047294
§ 371(c)(1), (2) Date Jun. 17, 2020,
PCT Pub. No. WO2019/124550, PCT Pub. Date Jun. 27, 2019.
Claims priority of application No. 2017-244969 (JP), filed on Dec. 21, 2017.
Prior Publication US 2020/0395549 A1, Dec. 17, 2020
Int. Cl. C09K 11/06 (2006.01); C07D 263/57 (2006.01); H05B 33/04 (2006.01); H05B 33/10 (2006.01); H10K 50/844 (2023.01)
CPC H10K 50/844 (2023.02) 4 Claims
OG exemplary drawing
 
1. An organic electroluminescent element comprising at least an anode, a hole transport layer, a luminous layer, an electron transport layer, a cathode and a capping layer in this order,
wherein the capping layer comprises an amine compound having a benzazole ring structure represented by a general formula (A-1),

OG Complex Work Unit Chemistry
wherein in formula (A-1), A, X and Z may be the same or different from each other, and each represents a monovalent group represented by general formulae (B-4), (B-5), (B-6), or (B-7); and Ar may be the same or different from each other, and each represents a single bond or a divalent group of a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted fused polycyclic aromatic group,

OG Complex Work Unit Chemistry
wherein in formulae (B-4), (B-5), (B-6) or (B-7), a broken line part is used as a binding site; R12 to R15 may be the same or different from each other, and each represents a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, a straight or branched alkyl group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyl group having 5 to 10 carbon atoms which may have a substituent, a straight or branched alkenyl group having 2 to 6 carbon atoms which may have a substituent, a straight or branched alkyloxy group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyloxy group having 5 to 10 carbon atoms which may have a substituent, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic ring group, a substituted or unsubstituted fused polycyclic aromatic group or a substituted or unsubstituted aryloxy group, and
wherein A, X and Z in the formula (A-1) have a benzazole ring structure.