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US 8,576,345 B2Granted
Choloesteric liquid crystal display and fabrication thereof
AssigneeIndustrial Technology Research Institute
InventorsKai-Wei Lan, Chao-Wen Chen, Wan-Wen Chiu
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Abstract
A cholesteric liquid crystal display is provided, including a substrate, a first electrode layer disposed on the substrate, and a liquid crystal layer disposed on the first electrode layer, wherein the liquid crystal layer comprises at least two liquid crystals having different sensitivities to driving frequencies, mixed with each other, and liquid crystals having a greater initial state-transition temperature are more sensitive to driving frequency.
Claims9
A method for operating a cholesteric liquid crystal display, comprising:
- providing a cholesteric liquid crystal display, comprising a substrate, a first electrode layer disposed on the substrate, and a liquid crystal layer disposed on the first electrode layer, wherein the liquid crystal layer comprises at least two liquid crystals having different sensitivities to driving frequencies mixed with each other, and the liquid crystals having a greater state-transition temperature are more sensitive to driving frequency;
- and
- applying heat and electricity comprising voltage or driving frequency to drive the liquid crystals for brightening or darkening thereof, wherein the applied voltage or driving frequency are changed with regard to different liquid crystals for liquid crystals to have different changing amounts of state-transition temperatures, such that the liquid crystal layer can present light with at least two wavelengths.
Dependencies are inferred from the claim text.