On March 1st, market research firm DisplaySearch pointed out that LCD LCD panels and TV manufacturers continue to strengthen the development of LED (light-emitting diode) backlights to improve visual effects, achieve thinner, lower power consumption, etc., making LEDs The cost of (light-emitting diode) backlight panels is rapidly declining. Take the 40-inch Full HD LED backlight board as an example. The cost of the 40-inch Full HD LED backlight in the first quarter of this year is about $118, but it is estimated to drop to $100 in the fourth quarter of this year, a drop of about 15%. .
   According to DisplaySearc's latest LED and CCFL quarterly reports of light costs, the key to the rapid development of LED backlighting is the continued cost reduction and accelerated price reductions from traditional CCFL (cold cathode tube) backlights. The core components of the LED backlight for LCD TVs include: LED light-emitting diode chips, light guide plates, brightness enhancement films, etc. These components do not exist in traditional CCFL-backlit LCD TVs, so how to reduce the cost of these raw materials The key to reducing the cost of LED backlights and CCFL backlights.
   Taking the 40-inch Full HD LED side-lit backlight board as an example, the cost of the LED module is about 34%, the cost of the light guide plate is about 13%, and the proportion of the brightness-increasing film is about 15%. DisplaySearch said that to reduce the cost of LED backlights, it is necessary to reduce the LED design, output power and cost of LED chips. The cost of the 40-inch Full HD LED backlight in the first quarter of this year is about $118, and it is estimated that it will reach $100 in the fourth quarter of this year, a drop of 15%. The main force driving the cost reduction is the increase in output, as well as the cost of LED chips and raw materials, and the increase in LED luminous efficiency, which reduces the use of LED chips.
   In order to reduce the cost of LED backlights, manufacturers must develop new LED backlight structures to minimize the use of LED wafers, optimize the design of the light guides, and enable optics in order to reduce the cost of LED backlights, says DisplaySearch LED backlight market and technology analyst Kevin Kwak. The film structure is better. At the beginning of 2009, the cost ratio of 40-inch LED backlight board to CCFL backlight board was about 3.7:1, which is expected to drop to 2.8:1 in the fourth quarter of 2010.
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