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:
Jun. 08, 2021
Filed:
Nov. 26, 2019
Oledworks Llc, Rochester, NY (US);
OLEDWorks LLC, Rochester, NY (US);
Abstract
A multimodal light-emitting OLED microcavity device, comprising: an opaque substrate; a layer with a reflective surface over the substrate; a first electrode over the reflective surface; organic layers for light-emission including a second blue light-emitting layer closer to the reflective surface and a first blue light-emitting layer further from the reflective layer than the second blue light-emitting layer, where the distance between the midpoints of the second and first blue-light emitting layers is L, and at least one non-blue light-emitting layer; a semi-transparent second electrode with an innermost surface through which light is emitted; wherein the distance Lbetween the reflective surface and the innermost surface of the semi-transparent second electrode is constant over the entire light-emitting area; and the ratio L/Lis in the range of 0.30-0.40. The multimodal microcavity OLED has increased blue emission and is particularly useful for use as the light source in a microdisplay.