Method of forming bus line designs for large-area OLED lighting

摘要

Systems, and methods for the design and fabrication of OLEDs, including large-area OLEDs with metal bus lines, are provided. For a given panel area dimension, target luminous emittance, OLED device structure and efficiency, and electrical resistivity and thickness of the bus line material and electrode onto which the bus lines are disposed, a bus line pattern may be designed to optimize Fill Factor (FF), Luminance Uniformity (U) and Power Loss (PL). Example designs may be to maximize FF, maximize U and minimize PL. or define minimum criteria for U and a maximum criteria for PL, and then to optimize the bus line layout to maximize FF. OLED panels including bus lines with different resistances along the bus line are also described.

主权项

1. A light emitting device having a panel comprising:
a first electrode layer; an organic layer stack over the first electrode layer; a second electrode layer over the organic layer stack; at least one pair of first electrode contacts with the same electrical polarity in electrical contact with at least one of the first electrode layer and the second electrode layer; one or more second electrode contacts; a plurality of bus lines, each of the plurality of bus lines in electrical contact with: the at least one pair of first electrode contacts, and the at least one of the first electrode layer and the second electrode layer; and wherein the panel has a panel area >50 cm2, a Fill Factor (FF)>70%, and a Luminance Uniformity (U)>80%.