Method of making a top-emitting OLED device having improved power distribution

摘要

A method of making a top-emitting OLED device, includes providing over a substrate (102) laterally spaced and optically opaque lower electrodes (104) and upper electrode busses (114) which are electrically insulated from the lower electrodes; depositing an organic EL medium structure over the lower electrodes (104) and the upper electrode busses (114); selectively removing the organic EL medium structure over at least portions of the upper electrode busses to reveal at least upper surfaces of the upper electrode busses; and depositing a light transmissive upper electrode (140) over the organic EL medium structure so that such upper electrode is in electrical contact with at least upper surfaces of the upper electrode busses.