Working of LCD
The premise underlying LCDs is that liquid crystals are used to flip pixels on and off to expose a specific color. When an electrical current is provided to a liquid crystal molecule, the molecule tends to untwist. This produces a shift in the angle of the top polarizing filter, as well as the angle of light traveling through the molecule of the polarized glass. As a result, a little light is permitted to let the polarized glass through an individual area of the LCD.
As a result, in comparison to other places, this one will appear dark. LCDs work on the premise of blocking light rather than emitting it. When the LCDs are built, a mirror is installed on the backside. The electrode plane, which is kept on top of the device, is made of indium-tin-oxide. A polarized glass with a polarizing coating is also included on the device’s bottom.
The entire region of the LCD must be contained with the use of a common electrode, and the liquid crystal matter must be above it. Then, on top, another polarizing film, and on the bottom, in the shape of a rectangle, the second piece of glass with an electrode. However, ensure that both parts are at the correct angles. When there is no current, light flows through the front of the LCD, reflecting and bouncing back with the help of a mirror. In front of the light is a screen composed of red, green, and blue pixels. To reveal a certain hue or keep a pixel dark, liquid crystals work by turning on or off a filter.