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LCD (Liquid Crystal Display) screens are today's most commonly
used displays and are available in a wide range of shapes, sizes,
levels of quality, and models. But, how exactly does an LCD function?
Liquid Crystals are substances, which are not liquid or solid, that bend and refract light waves as they pass through them. With the addition of external electric charges,the property of light changes creating the various shades of color and shadow you see on the display.
Currently, there are four competing LCD technologies in the market using liquid crystals
TN+Film, VA, IPS, and FFS. Today, LCD screens are used in all aspects of our daily life.
Digital watches, cellular phones, televisions, and even outdoor advertisement boards remind us of how LCD has changed the way we live, and where it will take us tomorrow.
 The Four LCD Technologies |
TN + Film is used for entry level and mid-range solutions
Known for: simple process, high transmittance, fast response rate
Improvements needed: viewing angle, color shift, contrast ratio
 Frequently used for notebook
Not Desirable for LCD TVs
VA is used for mid- to top-range solutions
Known for: high transmittance, fast response rate
Improvements needed: costs for compensation film, process complexity, color shift quality
Not applicable for tablet PCs
IPS is used for high-end solutions
Known for: high color stability, simple process
Improvements needed: transmittance (low), contrast ratio (low)
FFS is used for high-end solutions
Known for: high transmittance, wide viewing angle, authentic color
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