An LCD (Liquid Crystal Display) are either active or passive matrix displays that can display information as text or pixel-by-pixel.
This type of technology is generally less expensive than VFD or OLED display technology.
We have many different LCD products which can be classified under the following display types: TFT displays, COG displays and standard character or graphic module displays (COB).
Understanding Liquid Crystal Technology
In order to understand how LCDs work, it is important to know how they are made. To start, LCDs are composed of two pieces of polarized glass. On the non-polarized side of the glass, a special polymer is added to create grooves that run in the same direction as the polarizing film. Once this is done, a liquid crystal material is added to the grooved side of one of the polarized glasses. These grooves align the liquid crystal with the glass. The second piece of glass is placed on top with the grooved side in, aligned perpendicular to the first pieces of glass creating a row and column arrangement.