LED (Light Emitting Diode):
- Basic Explanation: LED is like a tiny light that makes colorful pictures on screens. It’s used to create bright and vibrant displays in things like TVs and signs.
- Practical Example: Imagine LED lights on a screen as a bunch of colorful fireflies. They light up to form images, and because they’re very small, they can create sharp and detailed pictures.
- Advanced Explanation: LED, or Light Emitting Diode, is a semiconductor device that emits light when an electric current flows through it. In screens, LEDs are used to create light for each pixel. LED screens can be either LCD screens with LED backlighting (known as LED-LCD) or individual LEDs used to directly emit light (known as OLED). LED-LCD screens use LEDs as a light source behind the liquid crystal layer, while OLED screens use LEDs that emit light themselves, resulting in thinner screens and better contrast.
- See Also: LED, Display, OLED, Pixel, Backlight
- Additional Resources:
- Science ABC – How Do LED Screens Work?: https://www.scienceabc.com/innovation/how-do-led-screens-work.html
- Wikipedia: https://en.wikipedia.org/wiki/Light-emitting_diode
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