High resolution pixel architecture
AssigneeIgnis Innovation Inc.
InventorsGholamreza Chaji, Vasudha Gupta, Arokia Nathan
Life of this patent
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Abstract
A pixel structure comprises a substantially transparent substrate, a drive transistor formed on the substrate, an organic light emitting device formed on the opposite side of the drive transistor from the substrate, a reflective layer disposed between the light emitting device and the drive transistor and having a reflective surface facing the light emitting device. The reflective layer forms an opening offset from the drive transistor for passing light emitted by the light emitting device to the substrate. At least a portion of the reflective layer is preferably concave in shape to direct reflected light from the light emitting device back onto the light-emitting device.
Claims12
A pixel structure comprising a substantially transparent substrate, a drive transistor formed on said substrate, an organic light emitting device formed on the opposite side of said drive transistor from said substrate, a reflective layer disposed between said light emitting device and said drive transistor and having a reflective surface facing said light emitting device, said reflective layer forming an opening offset from said drive transistor for passing light emitted by said light emitting device to said substrate, and at least a portion of the reflective layer is concave in shape to direct reflected light from said light emitting device back onto said light-emitting device.
A pixel structure comprising
- a substrate;
- a first photoresist layer having a first opening over the substrate;
- a reflective layer having a second opening, the reflective layer covering the first photoresist layer;
- a second photoresist layer in the second opening and over the reflective layer;
- and
- an organic light emitting device formed over the second photoresist layer,
- wherein the second opening overlaps with the first opening, and at least a portion of the reflective layer is concave in shape.
A method of forming a pixel structure, the method comprising
- providing a substrate;
- forming a first photoresist layer having a first opening over the substrate;
- forming a reflective layer having a second opening, the reflective layer covering the first photoresist layer;
- forming a second photoresist layer in the second opening and over the reflective layer;
- and
- forming an organic light emitting device over the second photoresist layer,
- wherein the second opening overlaps with the first opening, and
- wherein at least a portion of the reflective layer is concave in shape.
Dependencies are inferred from the claim text.