US 11,937,478 B2
Multi-colored microcavity OLED array having DBR for high aperture display and method of fabricating the same
Jiaqi Cheng, St. John's (CA); and Jordan Peckham, Portugal Cove-St. Philips (CA)
Assigned to Avalon Holographics Inc., St. John's (CA)
Filed by Avalon Holographics Inc., St. John's (CA)
Filed on Jul. 16, 2021, as Appl. No. 17/378,300.
Prior Publication US 2023/0019355 A1, Jan. 19, 2023
Int. Cl. H10K 59/30 (2023.01); H10K 50/852 (2023.01); H10K 71/00 (2023.01); H10K 59/12 (2023.01)
CPC H10K 59/30 (2023.02) [H10K 50/852 (2023.02); H10K 71/00 (2023.02); H10K 59/12 (2023.02); H10K 59/1201 (2023.02)] 24 Claims
OG exemplary drawing
 
1. An organic light emitting diode device comprising:
a substrate;
a distributed Bragg reflector (DBR) on the substrate;
a first color electrode on the DBR defining a first color microcavity, the first color electrode connected to the substrate through a first via;
a first optical filler layer on the DBR, the first optical filler layer being adjacent the first color electrode on the DBR;
a second optical filler layer on the first optical filler layer and partially overlapping the first color electrode at an overlap region;
a second color electrode on the second optical filler layer defining a second color microcavity, the second color electrode connected to the substrate through a second via;
a white organic light emitting diode (OLED) stack on top of the first color electrode and the second color electrode; and
a top electrode on top of the white OLED stack.