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:
Jul. 31, 2012
Filed:
Aug. 07, 2009
Vladimir Bulovic, Lexington, MA (US);
Jennifer J. Yu, Palo Alto, CA (US);
Vladimir Bulovic, Lexington, MA (US);
Jennifer J. Yu, Palo Alto, CA (US);
Massachusetts Institute of Technology, Cambridge, MA (US);
Abstract
The disclosure relates to a method and apparatus for micro-patterning organic layers of OLEDs. The disclosed methods do not require applying pressure to the film, nor do they require heat treatment, surface treatment or fast release rate of a stamp from the substrate. The disclosed methods are particularly advantageous over the conventional shadow masking techniques for providing large array fabrication with small features. In one embodiment of the disclosure, one or more organic films are selected for the OLED as a function of their individual or combined sublimation temperature. The material is selected in view of the depth and shape of the features that are to be formed in the organic layer. The disclosed embodiments can provide minimum feature size of 13 μm which is suitable for high resolution OLED displays.