Photoaligned quantum rod enhancement films
AssigneeThe Hong Kong University of Science and Technology
InventorsAbhishek Kumar Srivastava, Wanlong Zhang, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok
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Abstract
A photoaligned quantum rod enhancement film (QREF) includes: a substrate (802, 805); a photoalignment layer deposited on the substrate (802, 805); and a polymer layer deposited on the photoalignment layer, the polymer layer comprises a plurality of quantum rods, the plurality of quantum rods are configured to emit one or more wavelengths of light in response to pumping light, and are aligned to an alignment axis based on the photoalignment layer.
Claims18
A photoaligned quantum rod enhancement film (QREF), comprising:
- a substrate;
- a photoalignment layer deposited on the substrate;
- and
- a polymer layer deposited on the photoalignment layer, wherein the polymer layer comprises a plurality of quantum rods, wherein the plurality of quantum rods are configured to emit one or more wavelengths of light in response to pumping light, and are aligned to an alignment axis based on the photoalignment layer;
- wherein an order parameter and a degree of polarization corresponding to the plurality of quantum rods is based on an irradiation dose used for the photoalignment layer.
A liquid crystal display, comprising:
- a liquid crystal layer;
- a photoaligned quantum rod enhancement film (QREF) disposed below the liquid crystal layer, the photoaligned QREF comprising:
- a substrate;
- a photoalignment layer deposited on the substrate;
- and
- a polymer layer deposited on the photoalignment layer, wherein the polymer layer comprises a plurality of quantum rods, wherein the plurality of quantum rods are configured to emit one or more wavelengths of light in response to pumping light, and are aligned to an alignment axis based on the photoalignment layer;
- and
- a backlight, disposed below the photoaligned QREF;
- wherein an order parameter and a degree of polarization corresponding to the plurality of quantum rods is based on an irradiation dose used for the photoalignment layer.
A method for producing a photoaligned quantum rod enhancement film (QREF), the method comprising:
- providing a substrate;
- coating a photoalignment layer onto the substrate;
- defining an alignment for the photoalignment layer;
- coating a monomer layer comprising quantum rods onto the photoalignment layer;
- and
- polymerizing the monomer layer;
- wherein an order parameter and a degree of polarization corresponding to the quantum rods is based on an irradiation dose used for the photoalignment layer.
Dependencies are inferred from the claim text.