For LCD TVs, the easiest problem is the bright spots and bad spots on the screen. It is understood that so far, LCD technology has not been able to fundamentally overcome this defect. Today, the author will take you to find out what is the bright spot and the bad point of LCD TV, how to detect it. 
Highlights are colored pixels that appear when the background color of the LCD screen is completely black, or other color points that appear when the background color is switched between full red, full blue, and full green. Because bright spots emit light of different colors from other pixels, they are easier to find, and the most annoying ones are the ones that have been there for as long as the boot.
Bad point refers to dark spots with darker colors when the background color of the LCD screen is completely white. Regardless of the color of the screen, the dark spot never glows, there is no color, so it is not easily found, and the probability of dark spots is usually higher than bright spots.
In the test, as long as the brightness and contrast of the LCD screen is adjusted to the maximum (displayed in reverse video) or to the minimum (displayed in full black), you may find that there are many bright spots or dark spots on the screen. . LCD TV manufacturers generally explain this as long as the number and distribution of dead pixels does not exceed a certain standard, and the presence of one or more dead pixels LCD monitors is normal and is in line with industry standards.
Of course, in addition to the above-mentioned traditional method detection, on the test of bright spots and bad spots, some friends use software testing, such as the use of DisplayX or Monitors Matter Check Screen and other test software, to detect whether the LCD screen has any dead pixels. , it seems a bit more professional, then you can let the bad point "have nowhere to hide!"
In addition, we must also distinguish between "bright spots" and "bad spots". There are no bad spots and it does not mean there are no bright spots! Many manufacturers will recycle some panels with obvious bright spots and bad points into less obvious gray spots. Of course, that pixel is still dead, but it does not seem obvious.
Finally, we must avoid the occurrence of bad points in daily use. When using LCD TVs, we must avoid prolonged boot work, and we cannot display the same screen for a long time. This will make it easier for the LCD panel to age and deteriorate. The formation of points.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
Bad point refers to dark spots with darker colors when the background color of the LCD screen is completely white. Regardless of the color of the screen, the dark spot never glows, there is no color, so it is not easily found, and the probability of dark spots is usually higher than bright spots.
In the test, as long as the brightness and contrast of the LCD screen is adjusted to the maximum (displayed in reverse video) or to the minimum (displayed in full black), you may find that there are many bright spots or dark spots on the screen. . LCD TV manufacturers generally explain this as long as the number and distribution of dead pixels does not exceed a certain standard, and the presence of one or more dead pixels LCD monitors is normal and is in line with industry standards.
Of course, in addition to the above-mentioned traditional method detection, on the test of bright spots and bad spots, some friends use software testing, such as the use of DisplayX or Monitors Matter Check Screen and other test software, to detect whether the LCD screen has any dead pixels. , it seems a bit more professional, then you can let the bad point "have nowhere to hide!"
In addition, we must also distinguish between "bright spots" and "bad spots". There are no bad spots and it does not mean there are no bright spots! Many manufacturers will recycle some panels with obvious bright spots and bad points into less obvious gray spots. Of course, that pixel is still dead, but it does not seem obvious.
Finally, we must avoid the occurrence of bad points in daily use. When using LCD TVs, we must avoid prolonged boot work, and we cannot display the same screen for a long time. This will make it easier for the LCD panel to age and deteriorate. The formation of points.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
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