Reducing undesirable absorption in a microcavity OLED

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

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C313S504000, C313S505000, C313S113000, C428S690000, C428S917000

Reexamination Certificate

active

10871190

ABSTRACT:
An OLED device that has at least one first pixel that emits light in a desired region of the visible light spectrum including one or more light-emitting layer(s) and a reflector and a semitransparent reflector respectively disposed on opposite sides of the light-emitting layer(s) and arranged to resonate light produced by such layers such that the light produced by the at least one first pixel has a spectral component in the desired region of the visible light spectrum. The device also includes at least one layer disposed at a predetermined position between the reflector and semitransparent reflector which undesirably absorbs light in at least a portion of the desired region of the visible light spectrum, and wherein the predetermined position of the undesirably absorbing layer is selected to reduce the absorption of such layer in the desired region of the visible light spectrum.

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