US 11,788,001 B2
Organic light emitting polymer comprising light-emitting repeat unit in backbone of polymer and device therewith
Ruth Pegington, Godmanchester (GB); Michael Cass, Cambridge (GB); David Mohamad, Godmanchester (GB); Matthew Roberts, Godmanchester (GB); William Tarran, Godmanchester (GB); and Martin Humphries, Godmanchester (GB)
Assigned to Sumitomo Chemical Company Limited, Tokyo (JP)
Filed by Cambridge Display Technology Limited, Godmanchester (GB); and Sumitomo Chemical Company Limited, Tokyo (JP)
Filed on Nov. 24, 2020, as Appl. No. 17/103,784.
Application 17/103,784 is a continuation of application No. 15/551,423, granted, now 10,870,796, previously published as PCT/GB2016/050410, filed on Feb. 18, 2016.
Claims priority of application No. 1502731 (GB), filed on Feb. 18, 2015; and application No. 1511300 (GB), filed on Jun. 26, 2015.
Prior Publication US 2021/0079296 A1, Mar. 18, 2021
Int. Cl. C09K 11/06 (2006.01); C08G 61/02 (2006.01); C08G 61/12 (2006.01); H10K 85/10 (2023.01); H10K 85/30 (2023.01); H10K 50/11 (2023.01); H10K 85/60 (2023.01); H10K 101/00 (2023.01); H10K 101/10 (2023.01); H10K 102/10 (2023.01)
CPC C09K 11/06 (2013.01) [C08G 61/02 (2013.01); C08G 61/12 (2013.01); H10K 85/111 (2023.02); H10K 85/151 (2023.02); H10K 85/342 (2023.02); H10K 85/361 (2023.02); C08G 61/122 (2013.01); C08G 2261/11 (2013.01); C08G 2261/122 (2013.01); C08G 2261/1412 (2013.01); C08G 2261/312 (2013.01); C08G 2261/3142 (2013.01); C08G 2261/3422 (2013.01); C08G 2261/374 (2013.01); C08G 2261/411 (2013.01); C08G 2261/5242 (2013.01); C08G 2261/95 (2013.01); H10K 50/11 (2023.02); H10K 85/30 (2023.02); H10K 85/623 (2023.02); H10K 2101/00 (2023.02); H10K 2101/10 (2023.02); H10K 2102/103 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A light-emitting polymer comprising a light-emitting repeat unit in a backbone of the polymer; wherein the polymer has an anisotropy factor α of no more than 0.8, wherein a transition dipole moment of the light-emitting repeat unit is aligned with the polymer backbone, wherein the light-emitting repeat unit is a phosphorescent repeat unit comprising a phosphorescent metal complex, wherein the polymer comprises one or more co-repeat units of formula (VI):

OG Complex Work Unit Chemistry
wherein Ar is an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents, and angle θ is 180°±40°; and
wherein the phosphorescent repeat units are separated from one another in the backbone by the one or more co-repeat units.