Optical element
AssigneeResearch & Business Foundation Sungkyunkwan University
InventorsJang Kun Song, Tianzi Shen
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Abstract
An exemplary embodiment of the present invention provides an optical element including a first polarizer and a second polarizer disposed to be perpendicular to each other, and a cell disposed between the first polarizer and the second polarizer. The cell includes a first substrate and a second substrate facing each other, an electrode positioned between the first substrate and the second substrate, and a dispersion disposed between the first substrate and the second substrate and including at least one of peeled α-ZrP particles and peeled α-TiP particles. The peeled α-ZrP particles and the peeled α-TiP particles are in a nematic state. The orientation of at least one of the α-ZrP particles or the α-TiP particles is changed by an electric field applied to the electrode.
Claims22
An optical element comprising:
- a first polarizer and a second polarizer disposed to be perpendicular to each other;
- and
- a cell disposed between the first polarizer and the second polarizer,
- wherein the cell includes
- a first substrate and a second substrate facing each other,
- an electrode positioned between the first substrate and the second substrate, and
- a dispersion disposed between the first substrate and the second substrate and including particles,
- wherein the particles include at least one of peeled α-ZrP particles or peeled α-TiP particles,
- wherein the particles are in a nematic state,
- wherein the orientation of the particles is changed by an electric field applied to the electrode, and
- wherein the particles have a concentration of 0.5 wt % to 5 wt % with respect to the entire content of the dispersion.
An optical element comprising:
- a first polarizer and a second polarizer disposed to be perpendicular to each other;
- and
- a cell disposed between the first polarizer and the second polarizer,
- wherein the cell includes
- a first substrate and a second substrate facing each other,
- an electrode positioned between the first substrate and the second substrate, and
- a dispersion disposed between the first substrate and the second substrate,
- wherein the dispersion includes particles,
- wherein the particles include at least one of α-ZrP particles or α-TiP particles including a plurality of layers,
- wherein the particles are in an isotropic state,
- wherein the orientation of the particles is changed by an electric field applied to the electrode, and
- the particle have a concentration of 0.5 wt % to 15 wt % with respect to the entire content of the dispersion.
An optical element comprising:
- a first substrate and a second substrate facing each other;
- an electrode positioned between the first substrate and the second substrate;
- and
- a dispersion disposed between the first substrate and the second substrate and including particles,
- wherein the particles include at least one of peeled α-ZrP particles and peeled α-TiP particles,
- wherein the particles are in a lamellar state,
- wherein light is selectively reflected by the electric field applied to the electrode, and
- wherein the particles have a concentration of 0.3 wt % to 1.5 wt % with respect to the entire content of the dispersion.
Dependencies are inferred from the claim text.