What are the applications of liquid crystal?

What are the applications of liquid crystal?

Liquid crystals are everywhere. They are used in all kinds of display devices including computer monitors and laptop screens, TVs, clocks, visors, and navigation systems. Each pixel in a monitor is an assembly of liquid crystals controlled by its own electromagnetic field.

What are liquid crystals PPT?

PowerPoint Presentation. Liquid crystals are substances that exhibit a phase of matter that has properties between those of a conventional liquid, and those of a solid crystal.

What are liquid crystals physical pharmacy?

The liquid crystalline state combines properties of both liquid and solid state and are divided in two main types, i.e. thermotropic and lyotropic liquid crystals, depending on whether liquid crystalline state is reached either by increasing the temperature or by adding a solvent.

What are the properties of liquid crystals?

What are Liquid Crystals? Liquid crystal materials generally have several common characteristics. Among these are a rod-like molecular structure, rigidness of the long axis, and strong dipoles and/or easily polarizable substituents.

What are the properties and application of liquid crystal polymers?

LCP offers benefits for applications requiring high strength, vibration damping, low moisture absorption and low CTE. LCP is a high modulus thermoplastic matrix fiber for applications requiring high impermeability, excellent property retention over a borad temperature range and low moisture absoption.

What are liquid crystals discuss their classification and applications in detail?

Liquid crystals can be divided into thermotropic, lyotropic and metallotropic phases. Thermotropic and lyotropic liquid crystals consist mostly of organic molecules, although a few minerals are also known. Thermotropic LCs exhibit a phase transition into the liquid-crystal phase as temperature is changed.

Who discovered liquid crystals?

Friedrich Reinitzer
Until two scientists in Europe, Friedrich Reinitzer and Otto Lehmann, discovered liquid crystals in the late 19th century, these three were the only states of matter that humans have ever known. Liquid crystal is the fourth state of matter that occurs between solid and liquid.

Why liquid crystals are used in controlled drug delivery?

Liquid crystals have been recently studied as novel drug delivery system. The reason behind this is their similarity to colloidal systems in living organisms. They have proven to be advantageous over Traditional, Dermal, Parentral and Oral Dosage forms.

What is crystalline polymer used for?

Applications to Polymers and Plastics Crystalline polymers constitute a class of important engineering plastic materials in industrial applications and human daily lives. Some of the largest quantities produced each year in polymer industries are polyethylene and copolymers, polypropylene, polyesters and nylons.

What is LCP in chemistry?

Liquid crystal polymer (LCP) exhibits a highly ordered structure in both the melt and solid states. LCP can replace such materials as ceramics, metals, composites and other plastics because of its outstanding strength at extreme temperatures and resistance to virtually all chemicals, weathering, radiation and burning.

What is liquid crystal technology?

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.

What type of liquid crystals are used in medical field?

Most of the thermotropic liquid crystals are composed of rod-like molecules and classified into three types, nematic, smectic and cholesteric (Figure 2). They are formed on heating the crystalline solid or cooling the isotropic liquid.