Patent ID: 11925073
Assignee: APPLIED MATERIALS, INC.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 12:
13. A display device, comprising:
a display layer having a plurality of light-emitting diodes, the display layer having a capping layer that extends over the plurality of light-emitting diodes and 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 first polymer projections on the display layer, wherein the plurality of first polymer projections are optically transmissive and have spaces therebetween that expose the substantially planar top surface of the display layer, and wherein each first polymer projection has a first upper surface that is substantially parallel to the substantially planar top surface and sides extending from the substantially planar top surface to the first upper surface, and
a first dielectric layer conformally covering the plurality of first polymer projections and the substantially planar top surface of the display layer in the spaces between the first polymer projections, wherein the first dielectric layer forms first side walls along the sides of the first polymer projections and defining first wells extending into spaces between the first side walls so that the first wells extend below first upper surfaces of the first polymer projections,
a first filler that fills the first wells and covers portions of the first dielectric layer over first upper surfaces of the first polymer projections,
a plurality of second polymer projections on the first filler, wherein the plurality of second polymer projections are optically transmissive and have spaces therebetween that expose the first filler, and wherein each second polymer projection has a second upper surface that is substantially parallel to the substantially planar top surface and sides extending from the first filler to the second upper surface, and
a second dielectric layer conformally covering the plurality of second polymer projections and the first filler in the spaces between the second polymer projections, wherein the second dielectric layer forms second side walls along the sides of the second polymer projections and defining second wells extending into spaces between the second side walls so that the second wells extend below second upper surfaces of the second polymer projections.