A Bistable Liquid Crystal Display Device Using Polymer Stabilization
Abstract: The display requirements for "electronic Paper" are very low cost, low power, high resolution, and with lightweight. These attributes can be supplied by a liquid-crystal electro-optical effect that has memory, so if a picture element is set to a particular state (bright or dark), it will remain in that state without electrical refreshing. This invention is for a liquid crystal display device including a polyimide alignment layer. It is the object of the present invention to provide a bistable liquid crystal device, which substantially eliminates undesired states. The present inventions provide a liquid crystal display device including a polyimide alignment layer, having a bistable liquid crystal material and a polymer stabilizer in an amount from about 1% to about 15% based on the total weight of polymer and liquid crystal material, wherein the liquid crystal provides a twist angle from 0° to 360°.
- Low cost, high-resolution display devices requiring low power
- Especially helpful for electronic paper to display books, maps, status information, etc.
- Low driving voltage
- Low power consumption
- Fast switching
Inventors: Charles D. Hoke, Philip J. Bos, Jianlin Li
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