What is the purpose of the LCD display?
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly, instead using a backlight or reflector to produce images in color or monochrome.
What is LCD and how it works?
Liquid crystal display technology works by blocking light. Specifically, an LCD is made of two pieces of polarized glass (also called substrate) that contain a liquid crystal material between them. A backlight creates light that passes through the first substrate.
What is the liquid in an LCD screen?
The basis of LCD technology is the liquid crystal, a substance made of complicated molecules. Like water, liquid crystals are solid at low temperatures. Also like water, they melt as you heat them. But when ice melts, it changes into a clear, easily flowing liquid.
How is an LCD screen made?
Liquid crystal display (LCD) screens are manufactured by assembling a sandwich of two thin sheets of glass. That’s how you can get electrical signals to the middle of a screen. Then you deposit a layer of silicon, followed by a process that builds millions of precisely shaped transistor parts.
Why do LCD screens turn black?
Sunlight and Solar Clearing. Sun is the biggest enemy of LCD displays. It will cause them to heat up, discolor, and eventually turn black. The sun hits the display surface with 1250 watts/m2 of energy, which will cause the temperature of the Liquid Crystal cell to increase significantly, even on the coldest of days.
What are the different types of LCD?
The categories of the different LCD display types are:
- Monochrome (single color) Static. Graphic. Character. Custom.
- Multi-Color. TFT. OLED. FSC (Field Sequential Color LCD ) EBT (Excellent Black Technology) aka VA (Vertical alignment) CSTN.