US 11,925,073 B2
Stretchable polymer and dielectric layers for electronic displays
Kyuil Cho, Santa Clara, CA (US); Byung Sung Kwak, Portland, OR (US); and Robert Jan Visser, Menlo Park, CA (US)
Assigned to Applied Materials, Inc., Santa Clara, CA (US)
Filed by Applied Materials, Inc., Santa Clara, CA (US)
Filed on Oct. 5, 2021, as Appl. No. 17/494,600.
Application 17/494,600 is a continuation of application No. 16/698,805, filed on Nov. 27, 2019, granted, now 11,211,439.
Prior Publication US 2022/0028942 A1, Jan. 27, 2022
Int. Cl. H01L 27/32 (2006.01); H10K 59/122 (2023.01); H10K 59/35 (2023.01); H10K 102/00 (2023.01)
CPC H10K 59/122 (2023.02) [H10K 59/352 (2023.02); H10K 59/353 (2023.02); H10K 2102/311 (2023.02)] 18 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display layer having a plurality of light-emitting diodes with each light-emitting diode comprising a light generating layer, the display layer having a capping layer that extends above all light emitting materials in the display device and over spaces between the plurality of light emitting diodes to provide substantially planar top surface that spans the plurality of light-emitting diodes and the spaces between the plurality of light emitting diodes; and
an encapsulation layer covering a light-emitting side of the display layer above the substantially planar top surface, the encapsulation layer including
a plurality of polymer projections on the display layer, wherein the plurality of polymer projections have spaces therebetween that expose the substantially planar top surface of the display layer, and wherein each polymer projection has an upper surface that is substantially parallel to the substantially planar top surface and sides extending from the substantially planar top surface to the upper surface, and
a first dielectric layer conformally covering the plurality of polymer projections and the substantially planar top surface of the display layer in the spaces between the polymer projections, wherein the first dielectric layer forms side walls along the sides of the polymer projections and defining wells extending into spaces between the side walls so that the wells extend below upper surfaces of the polymer projections.