US 9,812,647 B2
Organic light-emitting device and method
Jonathan Pillow, Cambridgeshire (GB); Matthew Roberts, Cambridgeshire (GB); Martina Pintani, Cambridgeshire (GB); Simon King, Cambridgeshire (GB); and Michael Cass, Cambridgeshire (GB)
Assigned to Cambridge Display Technology, Ltd., Godmanchester (GB); and Sumitomo Chemical Company Limited, Tokyo (JP)
Appl. No. 13/805,297
Filed by Jonathan Pillow, Cambridgeshire (GB); Matthew Roberts, Cambridgeshire (GB); Martina Pintani, Cambridgeshire (GB); Simon King, Cambridgeshire (GB); and Michael Cass, Cambridgeshire (GB)
PCT Filed Jun. 24, 2011, PCT No. PCT/GB2011/000962
§ 371(c)(1), (2), (4) Date Apr. 8, 2013,
PCT Pub. No. WO2011/161425, PCT Pub. Date Dec. 29, 2011.
Claims priority of application No. 1010741.5 (GB), filed on Jun. 25, 2010; application No. 1010742.3 (GB), filed on Jun. 25, 2010; application No. 1010743.1 (GB), filed on Jun. 25, 2010; application No. 1010745.6 (GB), filed on Jun. 25, 2010; and application No. 1101642.5 (GB), filed on Jan. 31, 2011.
Prior Publication US 2013/0187146 A1, Jul. 25, 2013
This patent is subject to a terminal disclaimer.
Int. Cl. H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); C07C 13/567 (2006.01); C07C 15/18 (2006.01); C07C 15/52 (2006.01); C08G 61/02 (2006.01); C08G 61/12 (2006.01); C08L 65/00 (2006.01); H01L 51/50 (2006.01); H05B 33/14 (2006.01); H01L 51/56 (2006.01)
CPC H01L 51/0058 (2013.01) [C07C 13/567 (2013.01); C07C 15/18 (2013.01); C07C 15/52 (2013.01); C08G 61/02 (2013.01); C08G 61/12 (2013.01); C08G 61/122 (2013.01); C08L 65/00 (2013.01); C09K 11/06 (2013.01); H01L 51/0002 (2013.01); H01L 51/005 (2013.01); H01L 51/0032 (2013.01); H01L 51/0039 (2013.01); H01L 51/0052 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01); H01L 51/56 (2013.01); H05B 33/14 (2013.01); C07C 2603/18 (2017.05); C08G 2261/148 (2013.01); C08G 2261/1414 (2013.01); C08G 2261/15 (2013.01); C08G 2261/226 (2013.01); C08G 2261/228 (2013.01); C08G 2261/312 (2013.01); C08G 2261/3162 (2013.01); C08G 2261/3245 (2013.01); C08G 2261/3422 (2013.01); C08G 2261/5222 (2013.01); C08G 2261/95 (2013.01); C08L 2205/02 (2013.01); C09K 2211/1416 (2013.01); C09K 2211/1425 (2013.01); C09K 2211/1433 (2013.01); H01L 51/0043 (2013.01)] 17 Claims
 
1. A composition comprising a fluorescent light-emitting polymer mixed with a triplet-accepting polymer comprising a repeat unit of formula (IIb):
(TAU-Spacer)m  (IIb)
wherein TAU represents a triplet-accepting unit selected from the group consisting of: an anthracene TAU which is unsubstituted or substituted with one or more alkyl groups,

OG Complex Work Unit Drawing

OG Complex Work Unit Drawing
wherein * denotes the linking points for linking the repeat unit into the polymer chain, Ak is alkyl, and R is H or a substituent; Spacer is a spacer group selected from the group consisting of phenylene, biphenylene, and fluorene, and m is at least 2; wherein the triplet accepting polymer has a triplet energy level lower than that of the fluorescent light-emitting polymer.