nestekidenäyttöteknologia

Nestekidenäyttöteknologia, commonly known as LCD (Liquid Crystal Display) technology, is a flat panel display technology used in a wide variety of electronic devices. It relies on the properties of liquid crystals, which are substances that exhibit characteristics of both conventional liquids and solid crystals. Specifically, liquid crystals can be aligned by an electric field.

In an LCD, a backlight emits light, which then passes through a series of filters and polarizing layers. Sandwiched between these layers are tiny cells containing liquid crystals. Each cell acts as a pixel. When an electric current is applied to a specific cell, it alters the orientation of the liquid crystals within it. This change in orientation affects the polarization of the light passing through, controlling whether the light is blocked or allowed to pass through to the front of the display. By precisely controlling the amount of light that passes through each pixel, images are formed. Color LCDs use color filters to produce red, green, and blue light for each pixel, which are then mixed to create a full spectrum of colors. LCDs are known for their low power consumption, slim profile, and good brightness, making them suitable for everything from televisions and computer monitors to smartphones and calculators.