Quantum rod composition, quantum rod film and display device including the same

A quantum rod film, comprising:

• a plurality of quantum rods;
• and
• a polymer comprising:
• a main chain;
• and
• a plurality of dipole side chains attached to the main chain,
• wherein a major axis of the plurality of quantum rods and an axis of the plurality of dipole side chains are arranged along the same direction.

A display device, comprising:

• a first substrate;
• a second substrate facing the first substrate;
• a plurality of pixel electrodes and a plurality of common electrodes on the first substrate;
• a quantum rod film positioned between the first substrate and the second substrate, the quantum rod film comprising:
• a plurality of quantum rods;
• a polymer comprising a main chain, and a plurality of dipole side chains attached to the main chain, wherein a major axis of the plurality of quantum rods and an axis of the plurality of dipole side chains are arranged along a first direction;
• and
• a backlight unit under the first substrate,
• wherein responsive to receiving light from the backlight unit, the quantum rod film emits light polarized along the first direction.

A method of forming a quantum rod film, the method comprising:

• forming a plurality of pixel electrodes and a plurality of common electrodes on a substrate;
• coating a quantum rod composition on the substrate, the quantum rod composition comprising:
• a plurality of quantum rods;
• a polymer comprising a main chain, a plurality of dipole side chains attached to the main chain;
• and
• a solvent,
• generating an electric field between the plurality of pixel electrodes and the plurality of common electrodes;
• and
• curing the quantum rod composition to form a quantum rod film on the substrate, in which a major axis of the plurality of quantum rods and an axis of the plurality of dipole side chains are arranged along a direction substantially parallel to the electric field.