The bad point is a physical damage that the LCD screen cannot be 100% avoided in production and use. In most cases, it is generated during screen manufacturing, and impact or natural loss during use may also cause bright/bad spots. As long as one or more of the three primary colors that make up a single pixel are damaged, bright/bad points are generated, and both production and use may cause damage. This article refers to the address: http:// Some LCDs have a bad point that may be caused during use. Simply tell you some precautions when using it normally: 1, to minimize the possibility of direct exposure of the screen under strong light, in order to prevent the screen from being exposed to strong light, resulting in excessive temperature and accelerated aging; 2, LCD screen is one of the most vulnerable parts of the TV, do not remember to use the pen, key and other sharp objects on the screen to "point and point"; 3. Keep the voltage power normal. The above is just a few small methods when checking the LCD panel. There are still many ways to identify LCD panels. We have a newer and better way to tell you the first time. Here again, you should be reminded of your attention. You must make a good statement with the manufacturer when purchasing the LCD TV, so that your rights will not be harmed. Say so much, I hope you can buy a flat-panel TV that is really good. Solar energy is an inexhaustible, clean, pollution-free and renewable green energy. Photovoltaic energy is considered to be the most important new energy in the 21st century because of its advantages such as incomparable cleanliness, high security, relative extensiveness and sufficiency of energy, long life and maintenance free. The Solar Street Light does not need to be wired, does not need ac power supply, does not generate electricity. Dc power supply and control; It has the advantages of good stability, long life, high luminous efficiency, simple installation and maintenance, high safety performance, energy saving and environmental protection, economy and practical. It can be widely used in urban main and secondary roads, small areas, factories, tourist attractions, parking lots and other places. Solar street lamp is green, energy-saving, cost-reducing, long service life, stable product structure, and has very good social and economic benefits. Solar Street Light Solar Street Light,Solar Integrated Street Lights,LED Solar Lawn Lamp,Outdoor Park Lights ZHEJIANG FIZZ NEW ENERGY CO.,LTD , https://www.ywfizz.com