US 9,812,669 B2
OLED with a flattening layer between two barrier layers
Daisuke Kato, Tokyo (JP); and Kaichi Fukuda, Tokyo (JP)
Assigned to JAPAN DISPLAY INC., Minato-ku (JP)
Filed by Japan Display Inc., Minato-ku (JP)
Filed on Jun. 17, 2016, as Appl. No. 15/186,081.
Application 15/186,081 is a continuation of application No. 14/818,499, filed on Aug. 5, 2015, granted, now 9,466,813.
Application 14/818,499 is a continuation of application No. 14/176,345, filed on Feb. 10, 2014, granted, now 9,166,194.
Claims priority of application No. 2013-024910 (JP), filed on Feb. 12, 2013.
Prior Publication US 2016/0293890 A1, Oct. 6, 2016
Int. Cl. H01L 51/52 (2006.01); H01L 27/32 (2006.01); H01L 51/50 (2006.01)
CPC H01L 51/5256 (2013.01) [H01L 27/3244 (2013.01); H01L 27/3246 (2013.01); H01L 27/3258 (2013.01); H01L 27/3265 (2013.01); H01L 51/5012 (2013.01); H01L 51/5253 (2013.01); H01L 2227/323 (2013.01); H01L 2251/301 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An organic electroluminescent display device comprising:
a substrate comprising an active area in which a plurality of organic electroluminescent light emitting elements and a plurality of switching elements are disposed, and an outside area surrounding the active area;
a passivation layer formed on the substrate and extending over a plurality of the switching elements;
a rib layer including ribs and formed on the passivation layer, the ribs in the rib layer delimiting the plurality of organic electroluminescent light emitting elements between the ribs, a first rib of the rib layer extending from the active area to the outside area, and having a sloped surface at the outside area;
a first barrier layer formed on the first rib and comprising a first surface and an inclined surface extending from the first surface onto the sloped surface of the first rib;
a second barrier layer formed on the first barrier layer; and
a flattening layer disposed between the first barrier layer and the second barrier layer on the inclined surface,
wherein the first barrier layer is in contact with the second barrier layer on the first surface.