Liquid crystal electro-optical modulator and method of optical modulation
AssigneeIndustrial Technology Research Institute
InventorsHsing-Lung Wang, Wei-Ting Hsu, Chu-Chun Yen, Chi-Lun Ting, Wei-Hsin Hou, Chi-Chang Liao, Shie-Chang Jeng
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Abstract
An electro-optical modulator includes a substrate, a first electrode over the substrate, a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode, and a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in one of a reflective mode and a transmissive mode under the control of the electrical field.
Claims18
An electro-optical modulator, comprising:
- a substrate;
- a first electrode over the substrate;
- a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode;
- and
- a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in a selected one of a reflective mode and a transmissive mode under the control of the electrical field, wherein the liquid crystal cell includes a mixture of liquid crystal molecules, fine particles and dyes.
An electro-optical modulator, comprising:
- a substrate;
- a first electrode over the substrate;
- a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode;
- and
- a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in a selected one of a reflective mode and a transmissive mode under the control of the electrical field, wherein the liquid crystal cell includes a mixture of liquid crystal molecules, and fine particles, wherein the modulating structure includes a plurality of modulating units, and the liquid crystal cell includes a plurality of cell units each corresponding to one of the plurality of modulating units.
An electro-optical modulator, comprising:
- a substrate;
- a first electrode over the substrate;
- a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode;
- and
- a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in a selected one of a reflective mode and a transmissive mode under the control of the electrical field, wherein the liquid crystal cell includes a mixture of liquid crystal molecules, and fine particles, wherein the liquid crystal cell includes a plurality of cell units and the second electrode includes a plurality of sub-electrodes extending in parallel with each other, each of the plurality of cell units corresponding to one of the plurality of sub-electrodes of the second electrode.
An electro-optical modulator, comprising:
- a substrate;
- a first electrode over the substrate;
- a second electrode over the first electrode, the first electrode and second electrode being capable of providing an electric field between the first electrode and the second electrode;
- a modulating structure between the first electrode and the second electrode, the modulating structure containing at least one liquid crystal cell capable of operating in a selected one of a reflective mode and a transmissive mode under the control of the electrical field, wherein the liquid crystal cell includes a mixture of liquid crystal molecules, and fine particles;
- and
- a layer between the liquid crystal cell and the second electrode, the layer being capable of:
- absorbing light transmitting through the liquid crystal cell,
- or
- reflecting light transmitting through the liquid crystal cell.
Dependencies are inferred from the claim text.