HD LCD TV to avoid the two major points of attention
With the advent of LCD TVs, people were attracted by the fascinating scrolls they displayed. With the advent of high-definition display screens, the LCD screens had a brand new charm. If you are watching high-definition LCD TVs, there are obvious bright spots on the screen, which destroys the beautiful image effects. It is very regrettable and regrettable. This highlight is the bad point in the industry's knowledge. How to detect bad spots and how to avoid them?
What is a dead pixel The bad pixel of a high-definition LCD is the sub-pixels on the LCD that display black and white and red, yellow, and blue. Each point refers to a sub-pixel. Bad spots can be divided into two categories, where dark spots are "black spots" that cannot display content regardless of how the contents of the screen display change, and the most annoying ones are those bright spots that have existed for as long as the boot. As of now, LCD technology still cannot fundamentally overcome this defect. And each television company has different standards for bad points.
How to quickly detect bad spots Because bad spots are divided into bright spots and dark spots, we test for their characteristics. The easiest way is to make the screen all black, in the distance of about 30cm from the HD LCD TV screen, to see if there are bright spots in the screen; then let the screen white, see if there is a dark spot. Then change to red, green, blue to check the integrity of the color point, look at the brightness of the screen is 2.5 meters or so, these checks should be done on a full screen is a solid color, this method is based on the first You have to understand what the standard of bad spots for this HDTV is in order to make a correct judgment.
Bad points are inevitable in the production and use of liquid crystal displays. The vast majority of them are produced during the manufacturing process. Of course, high-definition LCD TVs usually suffer from impingement or high-load work and cause dead pixels. We can not grasp the point of failure in the production of relief, but at least we must know how to avoid the emergence of bad points in the daily use process.
Daily anti-dead point precautions
1, to avoid damage to the high-definition LCD screen. When I was a child watching TV, I liked to stay in front of the screen. My fingers often moved along with the movements of the characters. I even tapped the screen and the child was naughty. Therefore, it is necessary to pay attention to children in the family. Damage to high-definition displays leads to bad spots. On the one hand, more importantly, the current high-definition LCD display makes it easier for children to produce myopia.
2. The working voltage of HD LCD TV should be normal. It is best to connect the plug of the TV to a separately sold outlet only to prevent voltage instability and damage to the LCD screen when using other high-power appliances.
High-definition LCD TVs are now wanted by everyone, especially now that 4K TVs have appeared, making it even more difficult to control purchasing desires. It is understood that the resolution of 4K TV has reached four times that of the mainstream 1080P Full HD, and the picture quality is unusual. If there are obvious bad points on the 4K TV, it is more of a torment, and it is not necessary to avoid further damage. Expanding and knowing that some of the daily HD LCD TVs are still very necessary.
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