随着时间的推移，笔记本电脑最常见的问题之一是屏幕上出现黑点。尽管它们通常很小并且不会阻止您使用设备，但它们可能会令人烦恼和分散注意力。无论您拥有什么品牌的笔记本电脑，无论是华硕(Asus)、联想(Lenovo)还是戴尔(Dell)，或者您使用的是哪种操作系统（Windows、macOS 或Linux），每个人都可能遇到这种情况。本文将解释导致笔记本电脑屏幕上出现黑点的原因以及如何消除它们。
说到黑点，请务必查看我们的指南，了解如何清洁显示器屏幕(how to clean a monitor screen)以及如何清洁 iPad 屏幕(how to clean the iPad screen)，以防您遇到脏显示器。
笔记本电脑屏幕(Laptop Screen)出现黑点(Black Spots)是什么原因？
虽然笔记本电脑屏幕上的黑点可以修复，但了解导致黑点的原因很重要，这样您就可以防止将来损坏笔记本电脑。不幸的是，出现黑点的原因有多种，要找出原因并不是一件容易的事。尽管如此，为了修复黑点并阻止它们再次出现，这是您必须采取的重要步骤。
1. 像素卡住
残留(Stuck)像素是那些无法显示正确颜色输出的像素。它们实际上只能显示一种颜色。结果可能是屏幕上出现黑点或白点，通常很小，但非常分散注意力和烦人。
2.坏点
可怕的坏点(dead pixel)是笔记本电脑屏幕上出现黑点的主要原因之一。它是屏幕上的一个小区域，失去了正常运行的能力。在此区域中， LED(LED)屏幕的发光二极管或液晶显示器 ( LCD ) 无法显示正确的颜色输出。结果是屏幕上的黑暗区域永远不会消失，即使显示器的其余部分正常工作也是如此。
大多数情况下，坏点是笔记本电脑磨损的迹象，但也可能由于屏幕的物理损坏或制造缺陷而出现。要区分卡住像素和坏点，请仔细观察该点，看看它是否发光。如果它发光但始终是相同的颜色，则它是一个卡住的像素。如果该点没有光，那么它就是一个坏点。
3. 堆积的污垢或碎片
灰尘和碎屑的堆积可能会在笔记本电脑屏幕上形成黑点。这种情况发生在未正确或定期清洁的笔记本电脑上。污垢(Dirt)、灰尘和碎屑沉积在屏幕表面并阻挡显示屏发出的背光。结果是屏幕上出现阴影或黑暗区域，这可能会开始影响显示质量。
4. 高温
显示器对高温很敏感。设备过热可能会导致屏幕上出现黑点。这就是为什么您的笔记本电脑拥有适当的冷却系统非常重要。您还必须定期清洁该冷却系统。
5. 烧屏
如果图像在某些类型的显示器（例如LCD和OLED）上显示较长时间，一段时间后可能会在屏幕上留下痕迹。这种现象也称为图像残留或重影，可能导致笔记本电脑屏幕上出现黑点。
您会知道黑点是由屏幕烧屏引起的，因为有问题的图像始终可见。当您的笔记本电脑显示白色背景时，它也会更加明显。这种类型的屏幕损坏是永久性的，无法修复。
6. 屏幕物理损坏
由于笔记本电脑屏幕由许多不同的层组成，如果其中一层损坏，就会中断流向液晶的电流。结果将是像素无法显示颜色的黑点。此类黑点的形状和大小取决于物理损坏的位置和程度。笔记本电脑屏幕损坏的最常见方式是对其施加过大的压力。
7. 软件问题
(Black)当出现软件问题时，笔记本电脑屏幕上也会出现黑点。它可能是过时的图形驱动程序、恶意软件、不同应用程序之间的冲突或过时的操作系统。因此，请确保您的系统保持最新状态并定期扫描安全威胁。
如何修复笔记本电脑屏幕(Laptop Screen)上的黑点(Fix Black Spots)
处理笔记本电脑屏幕上黑点问题的方法取决于其原因。它可以像清洁笔记本电脑显示屏一样简单，也可以像更换整个笔记本电脑屏幕一样复杂。让我们看看一些可以修复笔记本电脑屏幕上的黑点的安全方法。
1. 清洁
如果累积的污垢和碎屑导致笔记本电脑屏幕上出现暗点，清洁是解决该问题的最明显方法。但是，清洁敏感的笔记本电脑屏幕时必须小心并正确执行。否则，可能会造成更大的损害。
首先，确保清洁之前关闭笔记本电脑。您必须使用柔软的无绒布（例如超细纤维布）来清洁笔记本电脑屏幕。这将确保清洁后显示屏上不会留下划痕。您可以使用专为显示器设计的清洁溶液，或者只需用清水润湿布即可。
不要使用太多液体，因为它可能会进入屏幕并造成进一步的损坏。确保(Make)轻轻擦拭该区域，因为压力太大会损坏屏幕。清除导致黑点的污垢后，请使用干布擦去屏幕上任何可能进入的湿气。如果您使用的是 Mac，
请查看我们有关如何清洁 MacBook 屏幕的详细指南。(how to clean your MacBook screen)
2.修复卡住的像素
如果您发现了卡住的像素，那么修复起来很容易。您所要做的就是重新启动笔记本电脑。这通常足以重置像素并使其重新工作。另一种解决方案是安装旨在修复卡住像素的众多工具之一。JScreenFix就是其中之一。它的工作原理是快速更改屏幕上显示的颜色，迫使有问题的像素自行重新启动。
如果这两种解决方案对您不起作用，您可以尝试手动重新启动卡住的像素。使用软布轻轻地对卡住像素的位置施加压力。这可以让它再次工作。但是，您必须非常小心，因为对屏幕上的某一点施加太大的压力可能会损坏它。
3. 修复坏点
当处理坏点时，不能保证它会再次工作。然而，修复它值得一试，因为您可能会将卡住的像素误认为是死像素。坏点主要是硬件故障造成的，如果是这种情况，则没有软件可以帮助您。坏点的唯一解决方案是完全更换屏幕。
4. 修复软件问题(Software Issues)引起的黑点(Black Spots)
导致屏幕上出现黑点的最常见软件问题是图形驱动程序损坏或过时。这就是为什么此问题的解决方案是尝试重新安装驱动程序。该方法取决于您使用的操作系统。但您可以按照以下步骤作为一般准则：
- 使用设备管理器(Device Manager)或控制面板(Control Panel)中的程序(Programs)和功能(Features)卸载显示驱动程序。
- 访问显卡制造商的网站并下载适用于您的笔记本电脑的最新版本的显示驱动程序。
- 按照屏幕上的安装说明安装驱动程序。
- 重新启动您的笔记本电脑。
系统重新启动后，检查黑点是否消失。如果它仍然存在，您可能需要专业帮助。
5.寻求专业帮助
如果即使在尝试了本文中列出的修复方法后，您的笔记本电脑屏幕上仍然出现黑点，那么是时候去找专业人士了。出现黑点的原因可能是硬件问题或屏幕本身的物理损坏。如果出现这种情况，唯一的解决办法就是更换屏幕。
更换笔记本电脑屏幕并不是一项简单的任务，您需要专业的服务提供商来为您完成。您也可以通过制造商的服务中心来完成此操作。请联系您的笔记本电脑制造商的客户支持并询问下一步该怎么做。
如果您的笔记本电脑仍在保修期内，您需要将其寄回制造商或使用授权维修中心，以处理更换或修理笔记本电脑屏幕的潜在费用。如果您没有保修，请考虑更换旧笔记本电脑上的屏幕是否值得投资。根据设备的制造商和型号，更换屏幕的费用可能与笔记本电脑本身的费用相同。
请记住(Remember)，保持笔记本电脑屏幕的视觉质量需要结合预防性护理和主动故障排除。定期清洁和谨慎的使用习惯可以显着降低黑斑再次出现的风险。
How to Get Rid of Black Spots on Your Laptop Screen
One of the most common issues laptoрs develop over time is the appearance of black spоts on the scrеen. Althоugh they are often small and won’t prevent you from using yоur device, they can be annoying and distracting. No matter whаt brand of laрtop you hаve, whether it’s Asus, Lenovo, or Dell, or which operating system you are using (Windows, maсОS, оr Linux), it can happen to everyone. This article will explain what causes the black spots on a laptоp screen and how to get rid of them.
Speaking of black spots, make sure to check our guides on how to clean a monitor screen and how to clean the iPad screen in case you’re dealing with a dirty display.
What Causes Black Spots on Laptop Screen?
Although black spots on your laptop screen can be fixed, it’s important to understand what causes them, so you can prevent damaging your laptop in the future. Unfortunately, there are several reasons for the appearance of the black spots, and it’s not an easy task to figure out what could be the cause. Nevertheless, it’s an important step you must take in order to fix the black spots and stop them from reappearing.
1. Stuck Pixels
Stuck pixels are those pixels that fail to display the correct color output. They are literally stuck on displaying only one color. The result can be a black or white spot on the screen, usually small but very distracting and annoying.
2. Dead Pixels
The dreaded dead pixel is one of the main causes of the black spots appearing on your laptop screen. It’s a small area on the screen that lost the ability to function properly. In this area light-emitting diodes of the LED screens, or the liquid crystal display (LCD), do not display the correct color output. The result is a dark area on the screen that never disappears, even when the rest of the display is functioning properly.
Dead pixels are, most of the time, a sign of wear and tear on your laptop, but they can also appear due to physical damage to the screen, or a manufacturing defect. To make a difference between stuck and dead pixels, observe the spot carefully and see if it emits light or not. If it emits light but it’s always the same color, it’s a stuck pixel. If there is no light coming from that spot, then it’s a dead pixel.
3. Accumulated Dirt or Debris
A build-up of dirt and debris can create a dark spot on your laptop screen. This happens with laptops that aren’t properly or regularly cleaned. Dirt, dust, and debris settle on the surface of the screen and block the backlight that the display is emitting. The result is a shadow, or a dark area on the screen that can start affecting the quality of the display.
4. High-Temperature
Displays are sensitive to high temperatures. Overheating the device can cause black spots to appear on the screen. That’s why it’s important for your laptop to have a proper cooling system. You also must maintain this cooling system with regular cleaning.
5. Screen Burn-in
If an image is displayed on certain types of displays, like LCD and OLED, for an extended period of time, it can get burned into the screen after some time. This phenomenon is also known as image retention or ghosting and can cause black spots to appear on laptop screens.
You’ll know your black dot is caused by a screen burn-in because the image in question will be visible at all times. It can also be more noticeable when your laptop is displaying a white background. This type of screen damage is permanent and can’t be fixed.
6. Physical Damage to the Screen
Because laptop screens are made of many different layers, if one of them is damaged, it can disrupt the electricity flow to the liquid crystals. The result will be black spots where the pixels can’t display the color. The shape and size of such black spots will depend on the location and extent of the physical damage. The most common way in which laptop screens get damaged is by applying excessive pressure to them.
7. Issues with Software
Black dots on your laptop screen can also appear when there’s a software issue going on. It can be outdated graphics drivers, malware, conflict between different apps, or outdated operating systems. So make sure to keep your system up to date and scan regularly for security threats.
How to Fix Black Spots on Laptop Screen
The way you’ll deal with the issue of black spots on your laptop screen will depend on what causes it. It can be as simple as cleaning the laptop display, or as complicated as replacing the whole laptop screen. Let’s look at some safe ways you can fix the black spots on your laptop screen.
1. Cleaning
If it’s the accumulated dirt and debris that are causing the dark shadowy spots on your laptop’s screen, cleaning is the most obvious solution to the problem. However, you must be careful when cleaning sensitive laptop screens and do it properly. Otherwise, you can cause even more damage.
First, make sure your laptop is turned off before cleaning. You’ll have to use a soft, lint-free cloth, such as a microfiber cloth, to clean your laptop screen. This will ensure there are no scratches left on the display after cleaning it. You can use a cleaning solution designed for displays, or simply dampen the cloth with clean water.
Don’t use too much liquid as it can get inside the screen and cause further damage. Make sure you are wiping the area gently, as too much pressure can damage the screen. Once you remove the dirt that was causing the dark spot, use the dry cloth to remove any possible access moisture from the screen. Check out our detailed guide on how to clean your MacBook screen if you’re using a Mac.
2. Fixing a Stuck Pixel
If you identified a stuck pixel, it can be an easy fix. All you have to do is restart your laptop. This is often enough to reset the pixel and get it working again. Another solution is to install one of the many tools designed to fix a stuck pixel. One such is JScreenFix for example. It works by changing the colors displayed on the screen rapidly, forcing the problematic pixel to restart itself.
If these two solutions didn’t work for you, you can try to restart the stuck pixel manually. Use a soft cloth and gently apply pressure to the spot where the stuck pixel is. This can get it working again. However, you must be extremely careful as too much pressure applied to one spot on the screen can damage it.
3. Fixing a Dead Pixel
When dealing with a dead pixel, there are no guarantees it will work again. However, fixing it is worth a try because it’s possible you mistook a stuck pixel for a dead one. Dead pixels are mostly the result of a hardware malfunction and if that’s the case, there’s no software that’ll help you. The only solution for a dead pixel is the complete screen replacement.
4. Fixing Black Spots Caused by Software Issues
The most often software issue that results in black spots on the screen is corrupted or outdated graphics drivers. That’s why the solution for this issue would be to try to reinstall the drivers. The method will depend on which operating system you’re using. But you can follow these steps as general guidelines:
- Uninstall the display driver using the Device Manager or Programs and Features in the Control Panel.
- Go to your graphics card manufacturer’s website and download the latest version of a display driver for your laptop.
- Install the driver following the on-screen installation instructions.
- Restart your laptop.
Once the system is back on, check if the black spot disappeared. If it’s still there, you might need professional help.
5. Seek Professional Help
If you’re still seeing black spots on your laptop screen, even after trying the fixes listed in this article, it’s time to go to a professional. It’s possible that the black spots appeared due to a hardware issue or physical damage to the screen itself. If this is the case, the only solution is screen replacement.
Replacing a laptop screen is not a simple task, and you’ll need a professional service provider to do it for you. You might be able to do it through the manufacturer’s service center too. Contact your laptop’s manufacturer’s customer support and ask what to do next.
If your laptop is still under warranty, you’ll need to send it back to the manufacturer or use an authorized repair center in order to deal with the potential expenses of replacing or fixing the laptop screen. If you don’t have a warranty, consider if replacing a screen on your old laptop is worth the investment. Depending on the manufacturer and the model of your device, the screen replacement might cost you as much as the laptop itself.
Remember, maintaining the visual quality of your laptop screen demands a combination of preventive care and proactive troubleshooting. Regular cleaning and cautious usage habits can significantly reduce the risk of recurring black spots.
