New energy regulations forcing LCD TV design changes

According to iSuppli, the United States Environmental Protection Agency (EPA) issued new guidelines require energy consumption reduced up to 2/3 part TV before 2013, a series of changes to its products and components to LCD TV supply chain. EPA 3 version of the TV energy star standard: effective in November 2008, is the guiding principle of the TV working state power consumption restrictions. EPA believes that this 3 edition rules can reduce the annual energy demand of millions of kilowatt hours. These guidelines will become more and more stringent, and will gradually be applied to different types of TV manufacturers in the next few years. First tier TV brands must comply with the relevant provisions of the second line and three line manufacturers should be required to meet the requirements in 2012 and 2010. In order to meet the requirements, the larger the size of the TV, the lower the power consumption. For example, the maximum power consumption of a 26 inch TV at work should be reduced to about $42.3 by 2013, down from $89.7 in 2008. For a 50 inch TV, power consumption should be reduced to about $106.9 in 2013, down from $317.5 in 2008.

TV power consumption, mainly because of the CRT into a liquid crystal display technology, as well as increasing size. When the size is less than 26 inches, the power consumption of these two kinds of television. However, in 37, 40, 42 and 50 inches and other popular dimensions, LCD TV power consumption is significantly higher than the relatively small CRT TV, which is the maximum size of 35 inches. Previous global standards, including the previous version of the energy star standard, only focus on reducing the power consumption of shutdown and standby. The new standard is focused on limiting the power consumption in the operating state, because the maximum power consumption of the tv. The 3 edition of the Energy Star TV standard is the first such standard to come into effect, but other countries will introduce similar regulations. These more stringent government regulations, will have a significant impact on the LCD TV technology and television supply chain, will affect the panel material, LCD backlight unit design and audio and video electronic links.

Although the function of electronic characteristics of TV and the development of OEM will appear many design changes, such as ambient light sensing intelligent backlight driver selection, but the most obvious effect will be re designed only from the panel material and backlight electronic. A reduced state power very effective method is the use of LED backlight, especially direct type LED backlight in LCD TV 30 inches or more in the most typical power consumption can be reduced by 40% or more.