FAQ

What is LCD?

Source: KONWHAI TOUCHAuthor: KONWHAI Date: 2019-06-17 Click:

  •      There are many different types of liquid crystal phases that can be distinguished by their different optical properties, such as the phenomenon of birefringence.
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  •      When a polarized light source is used, different liquid crystal phases will appear to have different textures when viewed under a microscope. Different textures in the texture contrast area correspond to different liquid crystal molecules.
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  •      We have all heard of LCD TVs, LCD screens, then what is LCD? Today, KONWHAI LCD advertising machine manufacturers Xiaobian to introduce you to the relevant knowledge of LCD.
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  • What is LCD?
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  •   LCD concept, classification and advantage analysis: 
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  • 1.Definition
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  •      Liquid crystal is defined as the rigidity of certain substances that are lost in a molten state or dissolved by a solvent, but obtains the fluidity of the liquid, and retains the anisotropic order of some crystalline molecules to form a combination. An intermediate state having a partial nature of crystals and liquids, the oriented ordered fluid present during the conversion is referred to as liquid crystal. The common liquid crystal screen on the market is generally a mixed liquid crystal, which is mixed by a plurality of liquid crystal monomers and a chiral agent.
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  • 2. Classification of liquid crystal
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  •      According to external factors: thermotropic liquid crystal and lyotropic liquid crystal; molecular arrangement: nematic, collinear, cholesteric, disc type; according to display type: STN type liquid crystal, HTN type liquid crystal, TN type liquid crystal; according to threshold voltage Points: high threshold voltage liquid crystal, ordinary liquid crystal, low threshold voltage liquid crystal.
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  • 3. Advantages
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  •      Full color display, low power consumption, low driving voltage, high reliability, low cost, no harm to the human body, etc., can be made into various specifications of liquid crystal display, and LCD TV, advertising machine, etc. The product can be significantly reduced in volume.
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  • 4. Liquid crystal storage and handling method
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  •      Liquid crystal should be stored at room temperature, can not be stored and used in low temperature environment, to avoid crystallization, and the space should be sealed, shading, moisture-proof, and can not be put together with other chemicals. Handle gently while handling to avoid gravity squeeze.
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