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US 2019/0296264 A1Published application
Quantum dot based pixel assembly
AssigneeApple Inc.
InventorsMathew Mathai, Jonathan S. Steckel, Hitoshi Yamamoto
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Abstract
Display panel narrow band emission pixels and methods of fabrication are described. In an embodiment, such a pixel arrangement includes a pair of reflective electrodes, a pair of narrow band emission layers, and a pair of hole transport layers of different thickness over the pair of reflective electrodes and narrow band emission layers. A semi-transparent or transparent top electrode layer is located over the first and second hole transport layers.
Claims20
A display panel narrow band emission pixel comprising:
- a first subpixel comprising:
- a first reflective electrode;
- a first emission layer over the first reflective electrode, the first emission layer designed for a first narrow band emission wavelength range;
- and
- a first hole transport layer (HTL) characterized by a first thickness over the first emission layer;
- and
- a second subpixel comprising:
- a second reflective electrode;
- a second emission layer over the second reflective electrode, the second emission layer designed for a second narrow band emission wavelength range that is different from the first narrow band emission wavelength range;
- and
- a second HTL characterized by a second thickness over the second emission layer, wherein the second thickness is different from the first thickness;
- and
- a semi-transparent or transparent top electrode layer over the first and second hole transport layers.
10 more elements
Dependencies are inferred from the claim text.