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:
Dec. 13, 2011
Filed:
Dec. 24, 2007
Nelson Tansu, Bethlehem, PA (US);
Yik Khoon EE, Bethlehem, PA (US);
James F. Gilchrist, Allentown, PA (US);
Pisit Kumnorkaew, Bethlehem, PA (US);
Ronald A. Arif, Raleigh, NC (US);
Nelson Tansu, Bethlehem, PA (US);
Yik Khoon Ee, Bethlehem, PA (US);
James F. Gilchrist, Allentown, PA (US);
Pisit Kumnorkaew, Bethlehem, PA (US);
Ronald A. Arif, Raleigh, NC (US);
Lehigh University, Bethlehem, PA (US);
Abstract
A tight emitting device comprises at least one p-type layer and at least one n-type layer and a microlens array surface. A method for improving light efficiency of a light emitting device, comprises depositing polystyrene microspheres by rapid convection deposition on surface of light emitting device; depositing a monolayer of close-packed SIOmicrospheres onto the polystyrene microspheres; and heal treating to convert the polystyrene microspheres into a planar microlayer film to provide a surface comprising substantially two-dimensional (2D) hexagonal close-packed SIOcolloidal microsphere crystals partially imposed into a polystyrene monolayer film.