When discussing Liquid Crystal Display (LCD), there is indeed a common misconception that LED backlight technology is confused with LCD technology, or that LED is mistakenly regarded as a direct type of LCD. In fact, this classification method is not entirely accurate. Liquid Crystal Display (LCD)
LCD is a display technology that utilizes the optical properties of liquid crystal materials to change under the action of an electric field to display images. LCD itself does not emit light, it requires an external light source to illuminate the screen and display images. Traditional LCD screens use cold cathode fluorescent tubes (CCFL) as the backlight source, but over time, this technology has gradually been replaced by LED (light emitting diode) backlight technology. LED backlight technology
LED backlight refers to the use of LEDs as the light source behind LCD screens. LED backlighting has higher energy efficiency, longer lifespan, better color expression, and thinner design potential. Most modern LCD displays and televisions use LED backlight technology. However, this does not mean that they have become LED displays; They are still LCD displays, only using LED as the light source. The difference between OLED and LED
There is another completely different display technology called OLED (Organic Light Emitting Diode). Each pixel in an OLED screen can emit light on its own without the need for a backlight panel, which is fundamentally different from LCD and LED backlight technology. OLED screens have significant advantages in color performance, contrast, viewing angle, and response speed, and can achieve thinner and lighter designs. conclusion
When we talk about liquid crystal displays, it mainly refers to LCD technology, and LED backlight is just one type of light source widely used in LCD technology. LCD and LED (as backlighting) are not two parallel display technology types, but are interrelated. Meanwhile, OLED is a completely different display technology, fundamentally different from LCD and LED backlight technology.