System and method for matching electrode resistances in oled light panels
AssigneeUniversal Display Corporation
InventorsHuiqing PANG, Ruiqing MA
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Abstract
Provided are an OLED device and a method of manufacturing the OLED device that may provide improved luminance uniformity. The disclosed OLED may have a first electrode that has a first sheet resistance Rs, and a second electrode that has a second sheet resistance, wherein the second sheet resistance may be in the range of 0.3 Rs-1.3 Rs. In addition, the disclosed OLED may have a plurality of equal potential difference between points on a first electrode and a second electrode. The equal potential difference may be provided by a gradient resistance formed on at least one of the electrodes.
Claims13
1-43. (canceled)
A method of fabricating an electrode for an organic light emitting device, comprising:
- obtaining a first electrode material source;
- disposing the first electrode material source over a substrate;
- arranging the substrate at an angle θ relative to a line normal to the substrate from the first electrode material source, where 0<θ<90°;
- and
- depositing the first electrode material from the first electrode material source onto the substrate to form a first electrode having a non-uniform thickness.
A method of fabricating an electrode for an organic light emitting device, comprising:
- depositing a plurality of layers of an electrode material through each of a series of shadow masks, each shadow mask in the series of shadow masks having a smaller area through which the electrode material is deposited than the previous shadow mask in the series.
A method of fabricating an electrode for an organic light emitting device, comprising:
- passing a substrate through a plurality of positions in a linear deposition system;
- and
- at each position, depositing electrode material over the substrate at a different thickness and over a different portion of an area of the substrate than at each of the other positions.
Dependencies are inferred from the claim text.