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液晶(Liguid Crystal)是介于固态和液态之间各向异性的液体,是新发现的一种物质状态。它的发现,打破了人们关于物质三态(气态、液态、固态)的常规概念。液晶具有许多特有的性质。如其光学特性是固体和液体结构所不能比拟的。胆甾型液晶的温度范围为10—62℃,向列型液晶的温度范围为19～45℃,将这两种液晶按一定比例混合,当温度在20～40℃之间变化时,透光率为80％,是透明的。这正适宜人体体温变化的范围。在这样的胆甾—向列型液晶中,温度的变化能引起颜色的变化。温度从低到高增加时,颜色
Liquid crystal (Liguid Crystal) is a liquid between the solid and liquid anisotropy, is a newly discovered state of matter. Its discovery broke the general notion of the tri-state of matter (gaseous, liquid, solid). Liquid crystal has many unique properties. Such as its optical properties are solid and liquid structure can not match. Cholesteric liquid crystal temperature range of 10-62 ℃, nematic liquid crystal temperature range of 19 ~ 45 ℃, the two liquid crystals by a certain percentage of mixing, when the temperature changes between 20 ~ 40 ℃, the light transmission Rate is 80%, is transparent. This is suitable for the range of body temperature changes. In such a cholesteric-nematic liquid crystal, a change in temperature can cause a change in color. When the temperature increases from low to high color