LED backlighting and edge light is an important factor in the rise of the implementation of the EU RoHS Directive . The Directive stipulates that from 1 July 2006 onwards, the EU member states to eliminate sales of electronic devices in the lead, cadmium, mercury , OLED Module hexavalent chromium , polybrominated biphenyls and polybrominated diphenyl ethers and other substances. And Mercury is CCFL lamps and other types of fluorescent lighting the main ingredients. LED lights then do not use mercury.
In power consumption , compared with the ordinary CRT TV , flat panel TV power consumption considerably , many consumers of the energy situation on TV are quite concerned . It is understood that in 2008 sales of 12 million flat-screen TV , such as by working four hours a day every TV , lcd module every year on the need to consume 2.4 billion kWh of electricity , the equivalent of several large sum of annual generation capacity of thermal power plants .
The LED brightness can be carried out with the initiative to adjust the screen brightness , energy efficient compared to LCD TVs can reach more than 30% . This performance in some dark scenes images , only need to adjust the backlighting of the necessary area ( on the screen showed black or dark part ) local lighting , which can to show you a chiaroscuro effect of natural high-quality images .
A liquid crystal panel section of the module (LCM): panel process can be divided into three stages, first semiconductor processes preceding (array), that is, the transistor is a thin film layer on the glass substrate made, compared with the middle of the liquid crystal filling assembly process (cell), that is, the color filter layer of glass and glass film transistors, together, poured into a liquid crystal intermediate.
没有评论:
发表评论