Patent ID: 8569948
Filing Date: 2013-10-29
Classification: H01L,H05B,Y02E,Y02P

Abstract:
1. A method of making an electroluminescent device, the method comprising: forming an electroluminescent element on a substrate, wherein the electroluminescent element comprises a cathode; an anode; and at least a portion of a plurality of sub-pixels; and selectively thermally transferring a plurality of optical spacers and a plurality of partially reflective layers to a side of the formed electroluminescent element opposing the substrate such that each optical spacer directly contacts the electroluminescent element, wherein in at least two of the sub-pixels, a corresponding one of the optical spacers is between the electroluminescent element and a corresponding one of the partially reflective layers to form at least a portion of an optical cavity of a top emitting electroluminescent device, and wherein adjacent optical spacers are spaced from each other.