US 11,997,866 B2
Hermetically sealed isolated OLED pixels
Siddharth Harikrishna Mohan, Plainsboro, NJ (US); William E. Quinn, Whitehouse Station, NJ (US); Ruiqing Ma, Morristown, NJ (US); Emory Krall, Philadelphia, PA (US); and Luke Walski, Princeton, NJ (US)
Assigned to Universal Display Corporation, Ewing, NJ (US)
Filed by Universal Display Corporation, Ewing, NJ (US)
Filed on Dec. 29, 2020, as Appl. No. 17/136,404.
Application 17/136,404 is a division of application No. 14/661,335, filed on Mar. 18, 2015, granted, now 10,910,590.
Claims priority of provisional application 61/970,937, filed on Mar. 27, 2014.
Prior Publication US 2021/0119175 A1, Apr. 22, 2021
Int. Cl. H10K 50/842 (2023.01); H10K 50/11 (2023.01); H10K 50/81 (2023.01); H10K 50/82 (2023.01); H10K 50/822 (2023.01); H10K 50/844 (2023.01); H10K 59/121 (2023.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01); H10K 102/00 (2023.01); H10K 50/813 (2023.01)
CPC H10K 50/8426 (2023.02) [H10K 50/11 (2023.02); H10K 50/81 (2023.02); H10K 50/82 (2023.02); H10K 50/822 (2023.02); H10K 50/844 (2023.02); H10K 59/121 (2023.02); H10K 59/122 (2023.02); H10K 59/124 (2023.02); H10K 71/00 (2023.02); H10K 77/111 (2023.02); H10K 50/813 (2023.02); H10K 2102/311 (2023.02)] 11 Claims
OG exemplary drawing
 
1. A method of fabricating an organic light emitting device (OLED) comprising:
forming a first barrier element over a substrate to provide an insulating grid for an OLED pixel disposed over the substrate;
forming a plurality of OLED pixels over the substrate, wherein each respective OLED pixel is formed over the substrate within a boundary of the first barrier element, such that the first barrier element surrounds the OLED pixel; and
forming a second barrier element over the OLED pixel and first barrier element,
wherein the first barrier element provides an edge seal for each respective OLED pixel, and the second barrier element encapsulates the OLED pixel to provide a top seal;
wherein the first vapor barrier element is inverted to form a shadow mask for OLED pixel isolation from the first vapor barrier element during formation.