A method of making an organic light emitting device is disclosed wherein an inert insulating conformal smoothing layer is deposited over a protruding structure. A secondary emitter, separate from the primary emitter and in operation during at least a portion of the broadcast period, produces a secondary emission detectable by a detector during the broadcast period. The pixel define layer includes a photosensitive resin layer and a transparent define layer sequentially disposed on the substrate. The direct wafer bonds are achieved by bonding forces between dipoles at the surfaces of adjoining monolithic cells.