Stretchable polymer and dielectric layers for electronic displays

US11211439B2 · kind B2 · utility

Assignee

• Applied Materials, Inc. · US

Inventors

• Kyuil Cho · Santa Clara, US
• Byung Sung Kwak · Portland, US
• Robert Jan Visser · Menlo Park, US

Key dates

• Filing date: Nov 27, 2019
• Grant date: Dec 28, 2021
• Expiry date: Nov 27, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/311

Abstract

A display device includes a display layer having a plurality of organic light-emitting diodes (OLEDs) and an encapsulation layer covering a light-emitting side of the display layer. The encapsulation layer includes a plurality of first polymer projections on display layer, the plurality of first polymer projections having spaces therebetween, and a first dielectric layer conformally covering the plurality of first polymer projections and any exposed underlying surface in the spaces between the first polymer projections, the dielectric layer forming side walls along sides of the first polymer projections and defining wells in spaces between the side walls.