Since 2009, the concept of LED TV has become popular. LG's latest LED TV is only 6.9mm thick. Less than the thickness of a pencil makes people marvel at the progress of science and technology, and this credit should be attributed to LED. I want to explain here that the led TV mentioned by the media should actually be called LED backlight TV, because the backlight of ordinary LCD TV is CCFL (cold cathode fluorescent lamp), and LED TV is replaced by LED as backlight. In the second quarter of 2009, Samsung's shipment share in the US LCD TV market rose to 265,438+0.3%, up 3.5 percentage points from the previous month. ISuppli TV system analysts believe that the increase in sales volume is inseparable from Samsung's active introduction and marketing of LED backlight LCD TVs. ISuppli estimates that in the second quarter of 2009, 2.2% of LCD TVs shipped in the US market used LED backlight, compared with 0 in the same period of 2008. ISuppli predicts that in 20 10, the shipment of 40-inch and larger LED-backlit LCD TVs will increase by more than 6 times compared with 2009, from 2.5 million in 2009 to1880,000. For the prediction of LED backlight TV in the future, although the prediction values of various research institutions are different, it is certain that 2065 438+00 LED backlight TV is worth looking forward to, and more and more LEDs will be used for LCD TV backlight.

As a backlight, LED has many advantages over CCFL:

Energy-saving: the photoelectric efficiency of cold cathode tube is about 60lm/W, while the light efficiency of commercial LED has reached more than 100lm/W;

More environmentally friendly: toxic materials will be used in CCFL manufacturing.

Make TV slimmer: LED backlight changes the mechanical structure design of TV backlight, which can greatly reduce the thickness of light guide plate in traditional backlight and make LED backlight TV slimmer. Generally, 4-5 LEDs are used for cell phone backlight, and 45 LEDs are needed for laptop LED backlight on average. An LED TV needs an average of 500 LEDs. LED backlight has penetrated into small and medium-sized display screens.

In mobile phone application, 100% uses LED backlight; DisplaySearch predicts that the LED backlight penetration rate of notebook computers will reach 52% in 2009, and will increase rapidly to 865,438+0% in 2065,438+00. The penetration of LED backlight in the field of LCD TV has just begun, but it is of great significance.

Development of LED backlight display;

20 10 year is also called "the first year of led" by many people. 2065 438+00 LED backlight technology is rapidly popularized, especially in the display.

Industry. Compared with traditional CCFL backlight, LED backlight has obvious advantages, especially in energy saving and environmental protection. Today, when low-carbon consumption is advocated, the appearance of LED backlight not only conforms to the trend of the times, but also helps to improve the performance of displays to a certain extent, so it is not surprising that it can be popularized rapidly.

In 20 10, all major brands in the display market introduced display products with LED backlight technology, which was welcomed by consumers. On major IT websites and forums, LED backlit displays of well-known domestic brands such as ASUS, Samsung, LG, AOC and Dell have attracted more attention than traditional CCFL backlit displays.