• Categories:Innovation
• Author:
• Origin:
• Time of issue:2021-11-24 11:44
• Views:

(Summary description)Cholesteric Liquid Crystal Display is an unconventional display technology that retains the image on the display even when power is removed from the control panel. Its image is comparable to reading on paper, features include high contrast, wide viewing angles, high reflectivity and high readability in sunlight, in addition to the product's bistable characteristics and low power consumption. Cholesterol liquid crystals use materials that are similar in structure to cholesterol molecules, hence the name. In addition to pure cholesteric liquid crystals, there are also nematic liquid crystals added with optical rotators, or nematic liquid crystals added with cholesteric liquid crystal molecules. The liquid crystals added with materials have different wavelengths and optoelectronic properties. Nematic liquid crystal after adding the optical active agent, the liquid crystal material will produce a helical structure. Placing cholesteric liquid crystals on two horizontal substrates, in the absence of electric field alignment, the cholesteric liquid crystals tend to be arranged in a plane helical arrangement, and can reflect light with colors under the condition of reflection conforming to a specific light wavelength, or is in a transparent state. Cholesteric liquid crystals can achieve a bistable effect in two ways: one is Surface Stabilized Cholesteric Texture (SSCT); the other is polymer stabilized cholesteric Texture (PSCT), both of which are One of the very popular cholesteric liquid crystal display technologies. The working principle of cholesteric liquid crystal display is: on the component, it includes upper and lower substrates, spacers and black absorbing materials like general passively driven liquid crystals. The upper and lower substrates can be made of glass or plastic substrates, except for passive driving electrodes and alignment layers In addition, in order to achieve a good reflection effect, the size of the spacer is about 6-8 times of the pitch.