2023-07-27 00:51:39
LCD monitors are marvels of technology that have replaced clunky old CRTs, but every rose has a thorn, and in the case of LCDs, that thorn comes in the form of dead pixels. When you buy an LCD monitor, the brand manufacturer’s warranty may cover dead pixels on the LCD, but each offers a different warranty policy. If you are unlucky to find a bad pixel when you turn it on for the first time following purchase, it is the best choice to return the product immediately for a new product failure. So what are bad pixels? What are you going to do regarding it? There are dead pixels on the LCD screen, what can I do? What are dead pixels? First, let’s start by understanding what a pixel is. Each pixel of the screen is composed of three tiny sub-pixels, and the three sub-pixels respectively have “three primary colors” of red, green and blue light. There is a tiny transistor inside each sub-pixel to control the intensity of color light. By changing the intensity of different color light of the three primary colors and mixing with each other, the display can display rich colors. Sometimes transistors can go wrong, and the most common dead pixels include the following: Dead Pixel means that an entire pixel is completely nonfunctional, and the result is a tiny black dot artifact you can see on a colorful display. Depending on how the polarizing filter in the screen works, dark spots may actually appear as white spots instead of black spots, so-called “bright spots” on the screen. In any case, this pixel has no effect. Color point (Stuck Pixel, pixel stuck) means that one or more sub-pixels are permanently lit and become a fixed color point. The color and intensity of the pixel are constant and cannot be changed like normal pixel operation. Although this type of problem is not as easy to spot, it occurs more frequently than dead pixels. Hot Pixels These are relatively rare issues, but they’re actually pixels that stay on all the time, with all three sub-pixels in on mode, appearing as a constant white point. Can screen defects be covered by warranty? Almost all monitor manufacturers offer limited warranties that cover manufacturing defects and dead pixels. Having said that, the exact details can vary widely between brands and even between models from the same company. Some manufacturers are more tolerant, even if there is a dead pixel, the monitor can be replaced, while some manufacturers require a certain number of dead pixels before they will consider the monitor to be defective, so you can read the instructions on the brand website first. Determine what action to take. High-end monitors, especially those for professional use, are more likely to provide a limited no-brightness warranty, but you should confirm the warranty details of the brand and item before buying. The picture below is the warranty content of the monitor provided by BenQ: If you find a defective pixel as soon as you open the box and take it out, you should put it back immediately and apply for a return or exchange to the channel. For general e-commerce platform purchases, users must keep the original packaging intact, without any traces of use, and do not tear off all protective stickers. Returns and exchanges can be made within 7 days. If you buy the product from a physical store, please be sure to turn on the screen in front of the delivery installer and check whether there are any bad pixels, and report it in time. If it is a computer screen, you can seek online tools such as dead pixel test. By clicking a series of full-screen colors, it is relatively easier to check whether the screen has dead pixels or pixels stuck in a certain color. What should I do if the screen is out of warranty or out of warranty and has defective pixels? If your screen is out of warranty, or the manufacturer’s policy can’t solve your dilemma, please don’t use the CRT method to slap the back or side of the LCD screen. You can try the following DIY remedies as a last resort to try to make it Dead pixels come back to life. Please remember that these methods are not guaranteed to be absolutely effective, and may cause further damage if not performed properly, all at your own risk, so proceed with caution: It’s a bit like waking up sleeping pixels, and while it’s not foolproof, it’s definitely worth a try. The more commonly used pixel repair software is UDPixel (Windows), it has a built-in dead pixel locator that can cycle the colors on the screen, the main tool will give you a small blinking dot, you can drag and drop it on the screen Let it run for at least a few hours on any dead pixels anywhere. Manual pressure To do this, you need to use a soft object, such as your fingertip, microfiber cloth, etc., to gently rub and rub the bad spot for 2 to 3 seconds, then release your finger and repeat Do it a few times to see if it works. Remember not to apply too much pressure or use anything sharp, or you will most likely hurt other pixels than the dead one. Heating Some people say that heating bad spots can fix them. For example, put a hot towel in a plastic bag and gently apply it to the bad spot for a few minutes. Wait patiently for some sub-pixels that get stuck automatically and suddenly following a period of time, but this so-called “period” does not have a fixed value, it may be hours, days, weeks, or even years. Even with dead pixels, you can still continue to use your monitor Even if you’ve tried the above remedies and they don’t work, it doesn’t mean you have to toss a monitor with dead pixels in the trash, they can still function in many ways, depending on the pixel defect Visibility: As a second display, your main screen may be used for work and photo editing, and you can use the sub-screen with defective pixels to play music/YouTube, check communication software, watch disks, etc. The requirements for screen display are not high. high task. Donations There are many non-profit organizations that are happy to receive screens that function normally and occasionally have a few dead pixels. Other uses Unless the problem of dead pixels is very serious or there are functional problems, these monitors can also be used to play games, watch videos, or even be used as monitoring screens for surveillance cameras and other visually busy full-screen content. Although the dead pixels sound uncomfortable, unless you look at it very attentively, or the number of dead pixels is as numerous as stars, it will basically not affect your listening experience, and this little flaw will not damage the overall use.
1690495886
#dead #pixels #LCD #screen #Computer #King #Ada
