Method of making a top-emitting OLED device having improved power distribution
AssigneeEastman Kodak Company
InventorsRonald S. Cok, Steven A. Van Slyke
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Abstract
A method of making a top-emitting OLED device, includes providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes; depositing an organic EL medium structure over the lower electrodes and the upper electrode busses; 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 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.
Claims12
A method of making a top-emitting OLED device, comprising:
- a) providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes wherein the lower electrodes are formed concurrently with forming the upper electrode busses;
- b) depositing an organic EL medium structure over the lower electrodes and the upper electrode busses;
- c) 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
- d) depositing a light transmissive upper electrode 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.
A method of making a top-emitting OLED device, comprising:
- a) providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes;
- b) depositing an organic EL medium structure over the lower electrodes and the upper electrode busses;
- c) selectively removing the organic EL medium structure by selectively abating such EL medium structure over at least portions of the upper electrode busses to reveal at least upper surfaces of the upper electrode busses by providing relative motion between laser light beams and the substrate having the upper electrode busses formed thereover;
- and
- d) depositing a light transmissive upper electrode 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.
A method of making a top-emitting OLED device, comprising:
- a) providing over a substrate laterally spaced and optically opaque lower electrodes and upper electrode busses which are electrically insulated from the lower electrodes;
- b) depositing an organic EL medium structure over the lower electrodes and the upper electrode busses;
- c) selectively removing the organic EL medium structure by selectively abating such EL medium structure over at least portions of the upper electrode busses to reveal at least upper surfaces of the upper electrode busses by directing one or more laser light beams towards the organic EL medium structure in registration with the upper electrode busses;
- and
- d) depositing a light transmissive upper electrode 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.
Dependencies are inferred from the claim text.