Light emitting device using dual light emitting stacks to achieve full-color emission
AssigneesThe Trustees of Princeton University, University of Southern California
InventorsMark Thompson, Stephen R. Forrest, Gong Gu
Life of this patent
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Abstract
Light emitting devices including at least one pixel comprising a first light emitting stack and a second light emitting stack placed side-by-side. The first and second light emitting stacks each comprise a first OLED and a second OLED over the first OLED. The first light emitting stack further includes a downconversion layer under the first OLED. Together, the first and second stacks are capable of emitting any visible color of light.
Claims20
A light emitting device that includes a pixel comprising:
- a first light emitting stack and a second light emitting stack;
- wherein
- said first and second light emitting stacks are placed side-by-side;
- said first and second light emitting stacks each comprise a first OLED and a second OLED over said first OLED;
- said first light emitting stack includes a downconversion layer under said first OLED;
- and
- together, said first and second light emitting stacks are capable of emitting any visible color of light.
A pixel for use in a light emitting device, said pixel comprising:
- a first light emitting stack and a second light emitting stack;
- wherein
- said first and second light emitting stacks are placed side-by-side in each of said pixels;
- each of said first and second light emitting stacks comprises a first OLED and a second OLED over said first OLED;
- each of said first light emitting stacks includes a downconversion layer under said first OLED;
- and
- together, said first and second light emitting stacks are capable of emitting any visible color of light.
A light emitting device comprising:
- a first light emitting stack and a second light emitting stack;
- wherein
- said first and second light emitting stacks are placed side-by-side;
- said first and second light emitting stacks each comprise a first OLED and a second OLED over said first OLED;
- said first light emitting stack includes a downconversion layer under said first OLED;
- and
- together, said first and second light emitting stacks are capable of emitting any visible color of light.
Dependencies are inferred from the claim text.