The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2024
Filed:
Mar. 31, 2022
Applied Materials, Inc., Santa Clara, CA (US);
Gang Yu, Santa Barbara, CA (US);
Chung-Chia Chen, New Taipei, TW;
Wan-Yu Lin, Taipei, TW;
Hyunsung Bang, Aschaffenburg, DE;
Lisong Xu, San Jose, CA (US);
Byung Sung Kwak, Portland, OR (US);
Robert Jan Visser, Menlo Park, CA (US);
Applied Materials, Inc., Santa Clara, CA (US);
Abstract
A light-emitting diode display including a substrate having a driving circuitry and a plurality of light emitting diode structures disposed on the substrate. Each light-emitting diode structure has a light emitting diode with a light emission zone having a planar portion, and a pigmentless light extraction layer of a UV-cured ink disposed over the light-emitting diode. The light extraction layer has a gradient in index of refraction along an axis normal to the planar portion, and the index of refraction of the light extraction layer decreases with distance from the planar portion.