LED backlight

LED backlight is used LED (light emitting diode) as the LCD backlight. And traditional CCFL (cold cathode tube) backlight comparison, LED low power consumption, low heat, high brightness, long life and other characteristics, is expected to completely replace the traditional backlight systems in recent years. Outline In recent years, rapid development of light sources, there have been new technologies, new products, LED backlighting gradually into the industry, with a certain scale, compared to the CCFL, LED has a significant energy-saving advantages, LED backlight still needs to be improved , domestic upstream factories can not keep supporting the international situation, technical exchange and interaction to improve and promote the application of the sample products such as the LED into the field of large-size LCD backlight biggest obstacle, as important parts of LCD products in the backlight, developed rapidly in recent years, there have been new technologies, new product introductions. One LED (light emitting diode) backlight market share is gradually increasing. In the notebooks, monitors and television sets and other products, the original has been in use CCFL (cold cathode fluorescent lamp) backlight, starting in 2008, notebooks and display products in the expansion of the use of LED backlighting. Statistics show that the first quarter of 2009, LED backlight shipments of eight times over the same period in 2008. While the CCFL LCD TVs dominate the world, with the 2008 launch of the first LED backlit TV, LED-backlit TV on the domestic market, products have mushroomed in the market. Definition backlight Backlit characters explained that "less than direct sunlight" or "avoid direct exposure to light."
 In the electronics industry, light is a form of lighting is often used in LCD displays. Backlit and front light type backlight is different is that radiation from the side or behind, from in front of the former definition of light exposure. They are used to increase in low-light environment illumination and computer monitors, LCD screen brightness, and CRT display to produce light in a similar manner. The light source may be incandescent bulbs, electro-optical panel (ELP), light-emitting diode (LED), cold cathode fluorescent (CCFL) and so on. Electro-optical panel provides uniform light across the surface, while others use the diffuser backlight module from the light source to provide uniform uniform light.
 Backlight can be any color, monochrome LCD is usually yellow, green, blue, and white backlight. The color display with white white, covering most of its shade. LED backlighting used in small, inexpensive LCD panel. He is usually light colored, although the white light has become increasingly common. Electro-optical panel is often used in large display, even when the backlight is very important. Electro-optical panel needs to drive through the high-voltage alternating current, this part of the counter-loop with the inverter to provide. Cold cathode tube is used in such computer monitors, color is usually white, which also requires anti-Inverters and diffuser. Incandescent light is needed when using high-brightness, but the disadvantage is that the life of incandescent bulbs rather limited, and will generate considerable heat.
 LED-backlit LCD display color can enhance performance. Each other via three LED light is generated by the LED to provide good agreement pixel LCD color filter of their own color spectrum.