LCD TV will be more energy-efficient R & D new LED drive

According to foreign media reports, a Japanese company called ROHM developed a four channel backlight can achieve lower power consumption for the LED drive, can greatly reduce the power consumption of LCD tv. Here, some readers may not be familiar with the LED drive, we first briefly introduce what LED drives.

LED driver (image from made-in-china.com)

LED drive refers to the power to adjust the electronic device drive LED light or LED module assembly work. Because the LED PN junction conduction characteristics of the decision, it can adapt to the power supply voltage and current range is very narrow, slightly deviated from May to light the LED luminous efficiency or reduce seriously, or shorten the service life and even burn the chip. The current power frequency power supply and the common battery power supply are not suitable for direct supply of LED, the LED driver is an electronic component which can drive LED to work under the optimal voltage or current state.

According to the data and related to the TV manufacturers to verify, the total power consumption of the liquid crystal panel, the backlight power consumption accounted for about 70%, so it has been the focus of many manufacturers have developed. The recent listing of the new LED driver, by improving the voltage level of built-in FET to 80V, will increase the maximum current of LED to 250mA/ch, the LCD panel makes products applicable to various sizes, but also very helpful to reduce design burden. It is understood that the production base of the preliminary process of the product for the ROHM Hamamatsu Co., Ltd. (Hamamatsu, Japan), the production base of the latter process for ROHM Electronics Philippines, Inc. (Philippines). The company plans to start in 2013 from the sale of samples (sample price: 200 yen), from the beginning of 2013 in November temporarily to the size of the production of the month of 200 thousand mass production. I believe that after mass production, LCD TV power consumption will be reduced, more energy saving and environmental protection.