lcd panel white line at the very bottom manufacturer

In order to indicate whether the issue is driver related or hardware related, kindly start your in Safe Mode and check to see if the issue still persists or not:

If the issue still persists, most probably the issue is hardware related and the screen needs to be replaced. To double-check it, restart your computer and enter the BIOS, if the screen has the same issue, it means the screen 100% is damaged.

However, if the issue does not exist in Safe Mode and BIOS, it means the issue is driver related and you should uninstall the display driver completely using this free DDU tool:

After that, go to the manufacturer"s official website and download then install the latest or a compatible graphics card driver or you can contact the manufacturer"s support services to provide you with a compatible driver.

Standard Disclaimer: There are links to non-Microsoft websites. The pages appear to be providing accurate, safe information. Watch out for ads on the sites that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the sites before you decide to download and install it.

Harassment is any behavior intended to disturb or upset a person or group of people. Threats include any threat of suicide, violence, or harm to another.

On a modern LCD TV screen, white (or any color) vertical lines appear when the individual “tab bonded” wire connections of the ribbon cable servicing a column of pixels on the LCD display begin to fail. It could also be a loose connection of the ribbon cable between the t-con and display.

Subsequently, question is, why has a line appeared on my TV? When a TV is showing vertical colored lines, a loose wire cable in the TV might be the cause. If you knock on the back of the TV, the vertical colored lines MAY disappear temporarily. This is a sign that a cable is loose or the T-Con board is faulty.

If your flat-screen TV has the dreaded vertical lines, half of the screen has turned darker, the screen is cracked, or the screen is broken, this can be repaired but may cost more than you paid for the complete TV. If your screen is cracked or broken, you can try replacing the Screen, LCD, Plasma, or LED part.

Due to the fact that the issue is isolated to a single line (even with multiple pixels in height) it"s unlikely it"s the actual signal (e.g. cable or connector pins).

Some issue with the connection would most likely screw up several lines and/or the whole image and it won"t be isolated to exactly one line (especially with digital connections).

In a similar way, issues with the graphics card should most likely cause issues with the whole screen (like garbage/random patterns). Those shouldn"t be isolated to a single line.

Turn off the monitor, disconnect all cables, and put it flat on your table (screen up) so it"s sitting plane on the table. Let it sit there for a night, then try again.

If everything else fails, what happens if you use your finger nail and pull it over the faulty line? Don"t push too hard, just so there"s some pressure (typically shows some short colored trail that should disappear within 1-2 seconds). Can you see any additional patterns or "waves" that don"t fit to what you see in other areas of the screen?

The appearance of static or flickering horizontal lines on a computer screen can be frustrating and inconvenient, but there are many steps you can take to try to fix your problem. This guide will walk you through various checks and fixes you can perform on your computer and its monitor to find out why the lines are appearing and what to do to make them disappear.

Horizontal lines on a computer monitor can be caused by overheating or physical damage to the monitor and connecting cables. Conflicts between the screen and selected screen resolution and refresh rate settings can also cause line problems, as can out-of-date device drivers and operating systems.

Try a different monitor. If possible, try connecting to a different monitor or screen. It can help you determine if the lines are caused by your computer’s screen or the computer itself.

Check your monitor while it’s disconnected. Keep your monitor powered on, unplug it from your computer, and look for any flickering or lines on its screen while it’s disconnected. If you see any kind of distortion, this means that your monitor is damaged.

Close and reopen your laptop. Close your laptop’s screen, wait a few seconds, and reopen it again slowly. Look to see when the lines begin to appear on the screen as you open the laptop. If the lines only occur at a certain angle, the cause is likely damaged wiring.

Check the monitor connection. Ensure all of the cables are securely connected, and watch for any improvements in screen image quality while you’re inspecting the cables. If you notice the image improves or worsens while touching the connecting cable, it may need replacement.

Remove magnets and electronics. If you have other electronics or magnetic devices near your computer, screen, or the connecting cables, move them somewhere else as they may interfere with the connection and cause the lines.

Calibrate your monitor. This process should only take a few minutes and can help optimize your monitor for use with your computer and its environment.

Run a troubleshooter. Open Settings and select System > Troubleshoot > Other trouble-shooters and run the Video Playback and Program Compatibility trouble-shooters. If you get presented with any recommendations for other trouble-shooters, run those too.

Reset your monitor to its factory settings. If you’re using an external monitor or screen, use its built-in settings, not your computer’s settings, to reset it to its factory settings. You can usually access these settings via a physical Settings or Menu button on the computer monitor itself.

If your monitor is displaying a message that reads "no input signal," you may have a defective cable or component. To troubleshoot the issue, turn your computer off and on again. Also, unplug the monitor-to-PC cable and plug it back in, making sure the connection is secure. Try another monitor to see if the problem is with your PC. Also, try resetting your video card; if nothing else works, replace your video card.

To fix coloration and distortion on a computer screen, power the monitor on and off, restart the computer, and make sure the cable between the monitor and computer is connected securely. If you"re using a CRT screen, try degaussing the monitor. You can also try adjusting your video card"s quality settings and experimenting with your monitor"s adjustment buttons.

To fix screen burn on a monitor, also called "ghosting," try turning off your display, ideally for at least 48 hours. Also, try setting your screensaver to an all-white image and letting it run for a few hours. You can also try using the JScreenFix tool, which fixes stuck pixels.

How you can fix a white lines which appear on your laptop screen. To understand that you need to read this whole blog till the end without skipping any part. At the end of this blog you will get the answer to your question of why these white lines appear and what caused them and how to get rid of this white line. So let"s get started;

The appearance of horizontal white lines is one of the most basic problems for users of laptops and computers. There may be several reasons behind the occurrence of this problem. For example, the outdated old version of the video card drivers, the bad connection of the video cable, broken ribbon cables, or a problem in your system software.

As we know there are a lot of reasons why there are horizontal or vertical lines on the computer screen display in Windows 10. To solve the horizontal or vertical lines across your desktop or laptop screen issue, First you should know what caused the problem.

The horizontal or vertical lines on the computer screen may be caused by various issues, ranging from outdated versions of graphics card drivers, incorrect video cable connections to flawed ribbon cables. You could enter the BIOS settings to determine whether it is a software-related or hardware-related problem.

Since BIOS is not a part of the Windows 10 operating system, if you still see horizontal or vertical lines on the computer screen, it indicates that it is software-related. If you see no horizontal or vertical lines on your computer display in Windows 10, it tells you that it is related to the hardware.

There are six recommended solutions to fix horizontal or vertical lines on the computer screen in Windows 10, applied to any screen like Dell, Asus, HP, Lenovo, Microsoft Surface, Acer, etc..

If you update the video card driver to the latest version, the issue of horizontal white lines on your laptop screen may be resolved. To get the right card driver and to fix the laptop screen, you can go to the manufacturer’s driver page of your operating system. But it will take a long time; Alternatively, you can try to select a professional driver and download and update the utility tool like Driver Talent. This tool will automatically download and install the latest version of the video card driver on your system.

Horizontal or vertical lines on your laptop screen may appear due to an incorrect screen resolution. To adjust the settings, you must change the appropriate settings as follows:

Step 4: Some screen resolution will be visible to you. You must set the resolution drop-down menu with the text “Recommended” next to it and click “OK”.

Once it is proved that the horizontal or vertical lines on the computer screen in Windows 10 are software-related, the most reliable culprit is the outdated graphics card driver. You need to upgrade it to the latest version to get rid of the driver compatibility problem. To do this, you can update the Display driver from Device Manager manually and check if it helps, which can take a long period of time.

On second thought, you can try the easiest method to adopt a professional driver download and update utility, such as Driver Talent, well-known as the safest and fastest way to update drivers, which can help to find out the outdated graphics card driver in seconds and then automatically download and install the latest version in 2 minutes.

A corrupt video cable connection may also cause horizontal or vertical lines on your laptop screen. In this case, you must turn off your system, disconnect the video cables, and then reconnect them to the right place. Once you have reinserted it, turn on your device and see if the problem is resolved.

Another major cause for the formation of white horizontal lines is a defective flat cable. In this case, all you need to do is turn off your laptop, replace the ribbon cable, and then turn on the laptop to see if the problem is resolved.

As I said early, I will give you guys all possible methods to resolve the “white lines issues on the laptop screen”. I hope you understand all the methods which I mentioned above. If you follow the methods step by step you can resolve this issue by yourself. To get rid of white lines on laptop screens, first you need to know what is the reason behind this problem, why the white line appears on your laptop screen. Once you figure it out it becomes easy to fix that problem.

Power down the computer and unplug all peripherals. If you are using a laptop, take its battery out by flipping it upside down and sliding the battery release latch. Press and hold the power button for 15 or 20 seconds to clear all residual power from the system. Some of the computer’s power might have been transmitting to the monitor, causing it to short out. Reconnect everything and turn the system back on to see if the lines are gone.

Unplug the monitor from the back of the computer and wait a few seconds until it displays a message “No signal.” If the no signal message also has vertical lines, you know the problem is in the monitor and not in your computer. Press the “Menu” button on the screen and then use the other buttons to browse for a “Factory Settings” mode. Select this mode to reset the monitor to its original settings. If the lines persist, the monitor may have been dropped or exposed to a magnet -- which can’t be fixed.

Reconnect and turn the computer back on. Look for the lines at boot up: if you see lines before Windows loads, the problem is either with the video card, the video connection cable -- whether HDMI or VGA -- or the monitor itself. If the lines only appear in Windows, the problem is a Windows setting -- most likely the refresh rate. Right-click on the Desktop once Windows loads and choose “Screen Resolution.” Click “Advanced Settings,” “Monitor,” and then lower the refresh rate to see if the lines disappear.

Watching your mobile screen with those white or black vertical/horizontal lines is annoying. In short, it’s tough to use a phone with these lines appearing on the screen. Typically, this issue is associated with the LCD, caused by a faulty hardware component in your device due to some accidental fall or water damage. Phones with such damages can only be fixed at a phone repair center.

If you are itel, TECNO or Infinix phone user and is troubled with vertical and horizontal line issues, make a reservation now without waiting time at the service shop. Carlcare Service will fix your phones easily. If your phone is under warranty, Carlcare can also save you repair costs. Check warranty now>>

However, sometimes the culprit could be an app or software glitch, hindering the functionality of key components like display assembly or motherboard. In that case, you can tackle the situation at home.

Before you head on to the fixes, let’s make your phone data safe. Sometimes, these lines are irreversible, and even the solutions you’re up to try may be followed by some sort of data loss. Therefore, the first thing you should do is make a backup of important files and apps on your device. Some popular ways for data back in Android devices are via:

In case you’re not sure about the process, it’s better to take help from a professional repair center. For Infinix, Itel, and TECNO users, Carlcare Service - being their official service center for these brands- is a recommended place to go.

If there’re white lines on the screen, this solution may prove effective. A battery cycle is when you charge a mobile to 100% and let it drain to 0% again. Usually, the lines will disappear soon as you charge the battery fully.

If the above methods don’t work, it’s time to try this masterstroke. Using your phone in a safe mode will confirm if the lines are because of some faulty app or software.

Check if the lines are gone! If yes (hopefully), then a third-party app is the culprit. Now uninstall the latest downloaded applications until the issue is gone. OR you should try the Solution:4

Suppose the lines are still visible. Then the issue is most likely due to some hardware failure- and the best option for you is to take your device to a reliable repair center.

It won’t be aggregation if you call “Factory Reset” the mother of all solutions. It fixes most of the issues caused by an app or software glitch. The process actually brings your phone back to the factory setting by erasing all the apps and files you’ve downloaded post your phone purchase.

If the horizontal or vertical lines still appear on your phone screen after trying all the above methods, you better take your device to a reliable mobile repair store near you. Most likely, it’s a faulty hardware component that needs to be repaired or replaced. Here, we would suggest you opt for only an authorized service center, as this will ensure flawless repair at a reasonable cost. Besides, if any of the components have to be replaced, they will be genuine and as per your specific requirements.

If this issue arises in your Infinix, Itel, or TECNO phone, Carlcare Service is here to help you! Pay a visit to your nearby Carlcare center. Our highly skilled technicians will fix the issues and saves you much trouble.

As the official service center part, we provide 100% original spare parts and various value-added services for Infinix, Itel, and TECNO users. Now with the online reservation service through Carlcare App, you don’t need to wait while your phone is repaired at our service centers.

We know it is quite worrying that you spent several dollars to purchase a new iPhone and after a few months of use, it develops the dreaded "white line on iPhone screen" problem. If that is your case, you do not have to worry or spend sleepless nights. You should veritably be heartened by the fact that there are millions of iPhone users facing the same problem.

And while we are at that, if you have been hunting for a solution to fix the white lines on your iPhone screen, it is time that you call off the hunt, as this post will equip you with a complete guide on how to fix white lines on iPhone screen problem and also feature some underlying cause to the problem. Let"s do it!

Many iPhone users have flocked to Apple forums asking, "why does my iPhone have white lines on the screen". Well, for your info, there is no one particular cause for the white lines problem; instead, the issue is fueled by a variety of causes, and here is a highlight of some common causes often linked to the white lines problem.

In most cases, the "white lines on iPhone screen" problem results from software bugs/glitches. Unfortunately, the only way to fix an iOS-related problem is by restoring your iPhone, resulting in data loss. Therefore, to avoid such an instance, we would like to introduce you to a more ideal solution to resolve iOS-related problems - the TunesKit iOS System Recovery Software.

It is a top professional software with immense abilities to resolve over 150 iOS/tvOS related problems, including boot loop screen, iOS update failure, headphone mode, white lines on iPhone screen, and blue screen, to mention a few. Moreover, TunesKit iOS System Recovery is compatible with all iOS and works perfectly to resolve all iTunes errors, put iPhone into DFU or downgrade the iOS version if necessary.

The program is 100% secure, ad-free, and easy to use, and here is a quick illustration of how to use the app to fix white lines on the iPhone screen without data loss.

Select "Standard Mode" as your repair mode and click the "Next" option. Then, follow the instructions to put your iPhone into DFU mode and hit "Next" to continue.

Check to confirm whether the firmware package details match those of your iPhone. Make the changes where necessary and hit the "Download" option to start the download process.

Finally, click the "Repair" button to start the iOS recovery process. Make sure your iPhone is connected during the entire process. This should quickly resolve your white line problem on your iPhone.

It is possibly the easiest way to fix your iPhone screen white lines problem. Basically, a simple force restart gifts your iPhone a fresh software run and helps eliminate app bugs and conflicts that may be causing the display problem. Here is a simple guide on how you can do it.

iPhone 8 and newer: Quickly press and release the Volume Up button, then press and release the Volume Down button and finally press and hold the Side button until an Apple logo appears.

Another top alternative solution to force reboot is restarting your iPhone in safe mode. This solution informs you whether the white lines display problem emanates from third-party apps installed on your iPhone. Below is a quick guide to restarting your iPhone in safe mode.

If the white lines disappear after the restart, you should embark on a mission to uninstall the third-party apps. Keep uninstalling the apps until you find the one causing the display issue.

Resetting your iPhone is another proven fix "iPhone screen is white with lines" problem. It is possible that a glitch in your custom display settings could be causing the problem. It is, therefore, necessary that your factory reset your setting and grant your iPhone fresh settings line up.

Besides launching new iOS versions, Apple provides regular update batches to help fix occurring bugs and improve performance. Older iOS versions are vulnerable to developing software glitches, which may cause display issues such as the "iPhone screen white lines" problem. Therefore, you should consider updating your iPhone to the latest version, and here is how you do it.

Step 3: Tap the "Download and Install" option to download software updates to your iPhone. But, first, make sure enough space on your iPhone to hold the updates.

According to many tech gurus and iPhone X users, resetting the iPhone to factory settings has proven to be an excellent fix for the white line on screen iPhone issue. Usually, performing a factory reset returns your iPhone to its original state, and therefore all your installed apps, data, and setting will be lost. So, kindly consider backing up your data before proceeding with the instructions below.

If your iPhone display problem is not yet solved, it is now time we explore more advanced software fixes to get rid of the white lines on your iPhone. Among the most effective advanced software solution is putting your iPhone into Device Firmware Update (DFU) mode.

Restoring your iPhone using this trick leads to data loss, and hence we recommend that you back up your data before putting your iPhone into DFU mode. Then, follow the instructions below.

Step 4: Perform a force restart on your iPhone (refer to Fix 2) for a few seconds, and keep holding the Home/Volume Down button until "iTunes has detected an iPhone in recovery mode" iTunes notification shows on your computer screen.

Step 5: Now, release the button, and your iPhone will go dark. Then, on the small window on your computer, select the "Restore" option to restore your iPhone in iTunes.

If none of the software solutions above work to fix the "white lines on iPhone screen" issue, it is now almost certain that it is a hardware problem. In that case, we suggest that you start by firmly putting your iPhone screen properly.

If possible that your LCD/OLED screen may have disconnected from the logic board. In such an instance, firmly push your screen to re-establish the connection. Use your thumb finger to gently press the screen against the logic board, as illustrated below.

Here is another underrated hardware fix for the annoying white lines display problem. Although it may seem relatively simple, it works wonders! Now, charge your iPhone to 100% and allow it to drain to 0% before recharging again. This helps to neutralize the excessive Electro Static Discharge (ESD).

If none of the above-mentioned solutions work, then the only explanation for your display problem is that your screen is faulty. Hence, you need to replace it with a new one.

If your warranty is still valid, we highly recommend that you find the nearest Apple store for screen replacement service. Equally, if your warranty does not stand, you can always purchase a genuine Apple screen from the Amazon store and find a professional iPhone repairer to replace it for you.

Could the white lines be fixed? If you are running short of time, or if you do not have access to the service center, you can resolve the issue on your own.

Content is displayed on your iPhone"s LCD screen. A logic board is located behind this LCD screen. When your iPhone is dropped and the connection is damaged, it will show white lines across the display. Plus, if the iPhone system is damaged, it can be fixed by a professional tool. It is possible to fix this and remove the white lines.

It is first necessary to ensure that the lines are permanent. There may be some issues with the display because of some recent app changes. You should check if the lines are appearing across apps, as well as on the lock screen and the home screen. Make sure you have the latest iOS updates installed and see if that fixes the issue. The iPhone screen will need to be repaired by some simple DIY tasks once these white lines are established as permanent.

Just a reminder, we have lined up some bonus tips to help you prevent your iPhone from developing white lines on the screen in the future. Of course, you can always share these tips with your friends and family and save them from dealing with this annoying problem.

4: Apple company regularly provides software updates to fix bugs and improve device performance. Therefore, we highly recommend that you regularly update your iPhone software, and it will go a long way in protecting your iPhone from unnecessary iPhone display failures. You can either use iTunes or the "Settings" menu to update your iPhone iOS.

Now, you have 10 workable tips to fix the "white lines on iPhone screen" problem. The list consists of both software and hardware fixes. Your job is to try each fix and find out which one works to resolve your problem.

However, we firmly recommend you first try out the TunesKit iOS System Recovery. It is a highly regarded fix for iOS-related problems and works fast to repair the system software without data loss. The program eliminates the need to create a data backup, thereby saving users a lot of time. This app has an intuitive interface that makes it easy for anyone to use. All you have to do is download, install and use the guide above to set up and repair your iPhone iOS quickly and with zero data loss.

This website is using a security service to protect itself from online attacks. The action you just performed triggered the security solution. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data.

As awesome as they are, most Apple MacBook models do tend to have some flaw - design or build quality related - and quite often that flaw blows up massively. After endless discussions on online forums, avalanche of tech articles, petitions and lawsuits, the defect is acknowledged by the company. In some cases, they even start a “Quality Program”, under which the affected devices are offered a free service even outside warranty. Some of the major “defects” over the years have been MacBook Pro 15inch Battery Issue, Butterfly keyboard issue, FlexGate: MacBook Pro Display Backlight Issue etc.

What are the symptoms?The MacBook Pro screen starts to develop grey or black horizontal lines from the bottom edge (sometimes the top), typically 1-2 cm “tall”. This band of lines is often flickering/strobing.

Note: Is your MacBook display showing Stage Light Effect - alternatively bright & dim areas along the bottom of the display? Or is it going blank when you open the lid beyond a certain angle? If yes, it is not a T-CON board issue. Although both impact the same MacBook models, that issue is actually entirely different. Read about it here:Flexgate: MacBook Pro display backlight issue - Is it repairable?

Technically, all MacBook Pro models launched after 2016, with an Intel CPU chip inside, would be vulnerable to this issue. These include 13 inch, 15 inch, even 16 inch devices. Model Numbers: A1706, A1707, A1708, A1989, A1990, A2159, A2141. MacBooks with Apple M1 chips are considered safe.

However, in our experience here at Fixxo, the 13 inch MacBook Pro non Touch Bar model 2016-17 (Model A1708) is the most frequently impacted model. There is a technical explanation for this. Read on.

It is believed to be a design flaw from Apple. Poor thermal management leads to the display logic board (T-CON board) getting cooked from overheating.

All MacBook displays have a small logic board of their own. Up until 2015 this board used to be tucked inside the hinge cover at the bottom edge of the display. It was part of the “lid”, removed from the main chassis. 2016 onwards, this board, while still being connected to the display, sits inside the top case or main chassis (read: keyboard panel). It is mounted very close to the heatsink radiator.

Disclaimer: Please be informed that this explanation is offered by independent experts (hat tip to Mr Dan at iFixit). Apple hasn’t verified this theory. For more discussion around it check this and this.

Simple - the 13 inch non Touch Bar model (A1708) has a single internal Fan, while most of the other MacBook Pro models 2016 onwards, have two (don’t ask why!). This leads to insufficient heat management, ergo higher chances of conking off.

Yes, but it is expensive - getting the display replaced. The T-CON board is attached to the display assembly, and there’s no way to replace the board alone. So, display assembly replacement is the only real, sure-shot solution.

“If it is a design flaw, won’t my new display also get damaged?” you ask? Good question. Unfortunately, yes, you do run that risk. But, now, with this new-found knowledge, you can proactively avoid any overheating in your MacBook. Read the What can I do to avoid this? section below. Follow that, and you can almost certainly avoid recurrence.

If your device is still under warranty, you’re in luck! For a free replacement, walk in to an Apple Authorized Service Provider (there are a number of fake AASPs around, careful!). If the warranty has expired, consider bringing it to us at Fixxo, for competitive pricing, top-notch quality, great customer support and quick TATs!

Well, I wish I could say “yes”. Your only hope really is that you have alerted at a very early stage of this “ailment”.Shut down the MacBook. Let it cool overnight. Try using again the next day - if the lines don’t reappear after a couple of hours, voila! Do read the next section for precautions.

If those stubborn lines keep reappearing, well, it is only a matter of time. Display assembly replacement is the only end-game. To delay the inevitable, read the next section.

[Secret Tip: Some users have reported to have successfully squeezed a free out-of-warranty replacement from Apple. Maybe try that if you’re feeling lucky!]

Never use these MacBooks (or any laptops for that matter) on the bed or a pillow. For better airflow and ventilation, keep the MacBook on a table or a hard surface.

Well, what can you say. Apple hasn’t acknowledged there is a design flaw. The good news is that there is a lot of pressure building up online towards this cause [too little, too late?]. If and when Apple does relent, it’ll appear on the Apple Service Programs page. Keep checking!

Until then, to support the campaign, you can sign this petition, provide feedback to Apple, or just visit an AASP and (politely) give them a piece of your mind.

If you experience that abnormal display problem of your PC (such as broken / blurred / sparkling image etc.), please refer to the following troubleshooting steps.

While you have display problems with main screen, you can check the display is a hardware or software issue by entering the BIOS configuration. Here you can learn more about How to enter the BIOS configuration.

If the display problem is still existing in the BIOS configuration, which means the screen hardware may be defective, and we recommend you visit the ASUS authorized repair center to test your laptop.

Note: Although some vendors of graphics issued the latter version but they might not pass its compatibility test. We suggest that you use the same driver as the one on the ASUS support site.

Please uninstall the present graphics driver first, refer to Appendices: How to uninstall driver. After the uninstallation is completed, please install the latest driver which is published on the ASUS support site, here you can learn more about How to search and download drivers.

If you haven"t updated the graphics driver before dysfunction happens, we suggest that you check if there is any new graphics driver on the ASUS support site.

Note: Some models possess both two graphics (integrated & dedicated graphics, such as Intel & NVIDIA) and can view in Device Manager, please confirm they are updated to the latest version, refer to Appendices: How to check the present version of driver.

Note:Only some notebook models have the component cover so that you are able to install a RAM (Random Access Memory) module in the memory module compartment, the reference as below.

Do you have display problems when you execute some specific programs / applications, such as the games or image processing software which occupies more system sources when it"s running?

Note: Please don’t remove the AC adapter for ASUS laptop TP420IA and UX425IA model. (These models need to plug in the AC adapter to do the Hard reset process.)

Re-install the AC adapter and battery, then power on the computer and check whether the problem is resolved or not. If the problem persists, please continue the next troubleshooting step.

Updating software usually helps the system stability and optimization, so we recommend you check and often update to the latest version in your PC. Here you can learn more about:

If the display problem happens recently, and if you have ever created a restore point or there is an automatic system restore existed, try to restore the computer to a point before the problem began to resolve the problem. Here you can learn more about How to use restore point to restore the system.

If the problem persists after all troubleshooting steps are completed. Please backup your personal files, then reset the PC to back to its original configuration. Here you can learn more about:

Or, replace with shorter cable for monitor. Some cables might have problems with signal weakening, especially the VGA (D-SUB) cables with analog signal. Here you can learn more about How to fix Display problem on External monitors.

The screen color temperature might be a little bit different for each panel even if the manufacturing process is the same, so it’s normal. ASUS makes sure the manufactured products to meet the specification, so please feel free to use it.

In addition, you can use Splendid to adjust the display color of your screen, or purchase the PANTONE Validated products to get a more accurate color correction for your experience.

If you experience that the color or color temperature problems on your screen, you are able to adjust the related settings via Splendid. Here you can learn more about The Splendid feature in MyASUS Customization.

A1: It’s a normal Windows situation. If the color setting is set to the light mode on your system, there is a temporary white blinking display after entering the lock screen or resume from sleep mode. Otherwise, there is a temporary blue blinking display if it is a dark color mode.

Note: If your PC is the AMD platform of graphics, please refer to How to uninstall AMD chipset driver, otherwise, please refer to the following steps.

Type and search [Device Manager] in the Windows search bar①, then click[Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.)

Type and search [Device Manager] in the Windows search bar①, then click [Open]②. (The left-side search illustration below is in Windows 11, and the right-side is Windows 10.)

Glass substrate with ITO electrodes. The shapes of these electrodes will determine the shapes that will appear when the LCD is switched ON. Vertical ridges etched on the surface are smooth.

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directlybacklight or reflector to produce images in color or monochrome.seven-segment displays, as in a digital clock, are all good examples of devices with these displays. They use the same basic technology, except that arbitrary images are made from a matrix of small pixels, while other displays have larger elements. LCDs can either be normally on (positive) or off (negative), depending on the polarizer arrangement. For example, a character positive LCD with a backlight will have black lettering on a background that is the color of the backlight, and a character negative LCD will have a black background with the letters being of the same color as the backlight. Optical filters are added to white on blue LCDs to give them their characteristic appearance.

LCDs are used in a wide range of applications, including LCD televisions, computer monitors, instrument panels, aircraft cockpit displays, and indoor and outdoor signage. Small LCD screens are common in LCD projectors and portable consumer devices such as digital cameras, watches, calculators, and mobile telephones, including smartphones. LCD screens have replaced heavy, bulky and less energy-efficient cathode-ray tube (CRT) displays in nearly all applications. The phosphors used in CRTs make them vulnerable to image burn-in when a static image is displayed on a screen for a long time, e.g., the table frame for an airline flight schedule on an indoor sign. LCDs do not have this weakness, but are still susceptible to image persistence.

Each pixel of an LCD typically consists of a layer of molecules aligned between two transparent electrodes, often made of Indium-Tin oxide (ITO) and two polarizing filters (parallel and perpendicular polarizers), the axes of transmission of which are (in most of the cases) perpendicular to each other. Without the liquid crystal between the polarizing filters, light passing through the first filter would be blocked by the second (crossed) polarizer. Before an electric field is applied, the orientation of the liquid-crystal molecules is determined by the alignment at the surfaces of electrodes. In a twisted nematic (TN) device, the surface alignment directions at the two electrodes are perpendicular to each other, and so the molecules arrange themselves in a helical structure, or twist. This induces the rotation of the polarization of the incident light, and the device appears gray. If the applied voltage is large enough, the liquid crystal molecules in the center of the layer are almost completely untwisted and the polarization of the incident light is not rotated as it passes through the liquid crystal layer. This light will then be mainly polarized perpendicular to the second filter, and thus be blocked and the pixel will appear black. By controlling the voltage applied across the liquid crystal layer in each pixel, light can be allowed to pass through in varying amounts thus constituting different levels of gray.

The chemical formula of the liquid crystals used in LCDs may vary. Formulas may be patented.Sharp Corporation. The patent that covered that specific mixture expired.

Most color LCD systems use the same technique, with color filters used to generate red, green, and blue subpixels. The LCD color filters are made with a photolithography process on large glass sheets that are later glued with other glass sheets containing a TFT array, spacers and liquid crystal, creating several color LCDs that are then cut from one another and laminated with polarizer sheets. Red, green, blue and black photoresists (resists) are used. All resists contain a finely ground powdered pigment, with particles being just 40 nanometers across. The black resist is the first to be applied; this will create a black grid (known in the industry as a black matrix) that will separate red, green and blue subpixels from one another, increasing contrast ratios and preventing light from leaking from one subpixel onto other surrounding subpixels.Super-twisted nematic LCD, where the variable twist between tighter-spaced plates causes a varying double refraction birefringence, thus changing the hue.

LCD in a Texas Instruments calculator with top polarizer removed from device and placed on top, such that the top and bottom polarizers are perpendicular. As a result, the colors are inverted.

The optical effect of a TN device in the voltage-on state is far less dependent on variations in the device thickness than that in the voltage-off state. Because of this, TN displays with low information content and no backlighting are usually operated between crossed polarizers such that they appear bright with no voltage (the eye is much more sensitive to variations in the dark state than the bright state). As most of 2010-era LCDs are used in television sets, monitors and smartphones, they have high-resolution matrix arrays of pixels to display arbitrary images using backlighting with a dark background. When no image is displayed, different arrangements are used. For this purpose, TN LCDs are operated between parallel polarizers, whereas IPS LCDs feature crossed polarizers. In many applications IPS LCDs have replaced TN LCDs, particularly in smartphones. Both the liquid crystal material and the alignment layer material contain ionic compounds. If an electric field of one particular polarity is applied for a long period of time, this ionic material is attracted to the surfaces and degrades the device performance. This is avoided either by applying an alternating current or by reversing the polarity of the electric field as the device is addressed (the response of the liquid crystal layer is identical, regardless of the polarity of the applied field).

Displays for a small number of individual digits or fixed symbols (as in digital watches and pocket calculators) can be implemented with independent electrodes for each segment.alphanumeric or variable graphics displays are usually implemented with pixels arranged as a matrix consisting of electrically connected rows on one side of the LC layer and columns on the other side, which makes it possible to address each pixel at the intersections. The general method of matrix addressing consists of sequentially addressing one side of the matrix, for example by selecting the rows one-by-one and applying the picture information on the other side at the columns row-by-row. For details on the various matrix addressing schemes see passive-matrix and active-matrix addressed LCDs.

LCDs are manufactured in cleanrooms borrowing techniques from semiconductor manufacturing and using large sheets of glass whose size has increased over time. Several displays are manufactured at the same time, and then cut from the sheet of glass, also known as the mother glass or LCD glass substrate. The increase in size allows more displays or larger displays to be made, just like with increasing wafer sizes in semiconductor manufacturing. The glass sizes are as follows:

Until Gen 8, manufacturers would not agree on a single mother glass size and as a result, different manufacturers would use slightly different glass sizes for the same generation. Some manufacturers have adopted Gen 8.6 mother glass sheets which are only slightly larger than Gen 8.5, allowing for more 50 and 58 inch LCDs to be made per mother glass, specially 58 inch LCDs, in which case 6 can be produced on a Gen 8.6 mother glass vs only 3 on a Gen 8.5 mother glass, significantly reducing waste.AGC Inc., Corning Inc., and Nippon Electric Glass.

The origins and the complex history of liquid-crystal displays from the perspective of an insider during the early days were described by Joseph A. Castellano in Liquid Gold: The Story of Liquid Crystal Displays and the Creation of an Industry.IEEE History Center.Peter J. Wild, can be found at the Engineering and Technology History Wiki.

In 1888,Friedrich Reinitzer (1858–1927) discovered the liquid crystalline nature of cholesterol extracted from carrots (that is, two melting points and generation of colors) and published his findings at a meeting of the Vienna Chemical Society on May 3, 1888 (F. Reinitzer: Beiträge zur Kenntniss des Cholesterins, Monatshefte für Chemie (Wien) 9, 421–441 (1888)).Otto Lehmann published his work "Flüssige Kristalle" (Liquid Crystals). In 1911, Charles Mauguin first experimented with liquid crystals confined between plates in thin layers.

In 1922, Georges Friedel described the structure and properties of liquid crystals and classified them in three types (nematics, smectics and cholesterics). In 1927, Vsevolod Frederiks devised the electrically switched light valve, called the Fréedericksz transition, the essential effect of all LCD technology. In 1936, the Marconi Wireless Telegraph company patented the first practical application of the technology, "The Liquid Crystal Light Valve". In 1962, the first major English language publication Molecular Structure and Properties of Liquid Crystals was published by Dr. George W. Gray.RCA found that liquid crystals had some interesting electro-optic characteristics and he realized an electro-optical effect by generating stripe-patterns in a thin layer of liquid crystal material by the application of a voltage. This effect is based on an electro-hydrodynamic instability forming what are now called "Williams domains" inside the liquid crystal.

In 1964, George H. Heilmeier, then working at the RCA laboratories on the effect discovered by Williams achieved the switching of colors by field-induced realignment of dichroic dyes in a homeotropically oriented liquid crystal. Practical problems with this new electro-optical effect made Heilmeier continue to work on scattering effects in liquid crystals and finally the achievement of the first operational liquid-crystal display based on what he called the George H. Heilmeier was inducted in the National Inventors Hall of FameIEEE Milestone.

In the late 1960s, pioneering work on liquid crystals was undertaken by the UK"s Royal Radar Establishment at Malvern, England. The team at RRE supported ongoing work by George William Gray and his team at the University of Hull who ultimately discovered the cyanobiphenyl liquid crystals, which had correct stability and temperature properties for application in LCDs.

The idea of a TFT-based liquid-crystal display (LCD) was conceived by Bernard Lechner of RCA Laboratories in 1968.dynamic scattering mode (DSM) LCD that used standard discrete MOSFETs.

On December 4, 1970, the twisted nematic field effect (TN) in liquid crystals was filed for patent by Hoffmann-LaRoche in Switzerland, (Swiss patent No. 532 261) with Wolfgang Helfrich and Martin Schadt (then working for the Central Research Laboratories) listed as inventors.Brown, Boveri & Cie, its joint venture partner at that time, which produced TN displays for wristwatches and other applications during the 1970s for the international markets including the Japanese electronics industry, which soon produced the first digital quartz wristwatches with TN-LCDs and numerous other products. James Fergason, while working with Sardari Arora and Alfred Saupe at Kent State University Liquid Crystal Institute, filed an identical patent in the United States on April 22, 1971.ILIXCO (now LXD Incorporated), produced LCDs based on the TN-effect, which soon superseded the poor-quality DSM types due to improvements of lower operating voltages and lower power consumption. Tetsuro Hama and Izuhiko Nishimura of Seiko received a US patent dated February 1971, for an electronic wristwatch incorporating a TN-LCD.

In 1972, the concept of the active-matrix thin-film transistor (TFT) liquid-crystal display panel was prototyped in the United States by T. Peter Brody"s team at Westinghouse, in Pittsburgh, Pennsylvania.Westinghouse Research Laboratories demonstrated the first thin-film-transistor liquid-crystal display (TFT LCD).high-resolution and high-quality electronic visual display devices use TFT-based active matrix displays.active-matrix liquid-crystal display (AM LCD) in 1974, and then Brody coined the term "active matrix" in 1975.

In 1972 North American Rockwell Microelectronics Corp introduced the use of DSM LCDs for calculators for marketing by Lloyds Electronics Inc, though these required an internal light source for illumination.Sharp Corporation followed with DSM LCDs for pocket-sized calculators in 1973Seiko and its first 6-digit TN-LCD quartz wristwatch, and Casio"s "Casiotron". Color LCDs based on Guest-Host interaction were invented by a team at RCA in 1968.TFT LCDs similar to the prototypes developed by a Westinghouse team in 1972 were patented in 1976 by a team at Sharp consisting of Fumiaki Funada, Masataka Matsuura, and Tomio Wada,

In 1983, researchers at Brown, Boveri & Cie (BBC) Research Center, Switzerland, invented the passive matrix-addressed LCDs. H. Amstutz et al. were listed as inventors in the corresponding patent applications filed in Switzerland on July 7, 1983, and October 28, 1983. Patents were granted in Switzerland CH 665491, Europe EP 0131216,

The first color LCD televisions were developed as handheld televisions in Japan. In 1980, Hattori Seiko"s R&D group began development on color LCD pocket televisions.Seiko Epson released the first LCD television, the Epson TV Watch, a wristwatch equipped with a small active-matrix LCD television.dot matrix TN-LCD in 1983.Citizen Watch,TFT LCD.computer monitors and LCD televisions.3LCD projection technology in the 1980s, and licensed it for use in projectors in 1988.compact, full-color LCD projector.

In 1990, under different titles, inventors conceived electro optical effects as alternatives to twisted nematic field effect LCDs (TN- and STN- LCDs). One approach was to use interdigital electrodes on one glass substrate only to produce an electric field essentially parallel to the glass substrates.Germany by Guenter Baur et al. and patented in various countries.Hitachi work out various practical details of the IPS technology to interconnect the thin-film transistor array as a matrix and to avoid undesirable stray fields in between pixels.

Hitachi also improved the viewing angle dependence further by optimizing the shape of the electrodes (Super IPS). NEC and Hitachi become early manufacturers of active-matrix addressed LCDs based on the IPS technology. This is a milestone for implementing large-screen LCDs having acceptable visual performance for flat-panel computer monitors and television screens. In 1996, Samsung developed the optical patterning technique that enables multi-domain LCD. Multi-domain and In Plane Switching subsequently remain the dominant LCD designs through 2006.South Korea and Taiwan,

In 2007 the image quality of LCD televisions surpassed the image quality of cathode-ray-tube-based (CRT) TVs.LCD TVs were projected to account 50% of the 200 million TVs to be shipped globally in 2006, according to Displaybank.Toshiba announced 2560 × 1600 pixels on a 6.1-inch (155 mm) LCD panel, suitable for use in a tablet computer,

In 2016, Panasonic developed IPS LCDs with a contrast ratio of 1,000,000:1, rivaling OLEDs. This technology was later put into mass production as dual layer, dual panel or LMCL (Light Modulating Cell Layer) LCDs. The technology uses 2 liquid crystal layers instead of one, and may be used along with a mini-LED backlight and quantum dot sheets.

Since LCDs produce no light of their own, they require external light to produce a visible image.backlight. Active-matrix LCDs are almost always backlit.Transflective LCDs combine the features of a backlit transmissive display and a reflective display.

CCFL: The LCD panel is lit either by two cold cathode fluorescent lamps placed at opposite edges of the display or an array of parallel CCFLs behind larger displays. A diffuser (made of PMMA acrylic plastic, also known as a wave or light guide/guiding plateinverter to convert whatever DC voltage the device uses (usually 5 or 12 V) to ≈1000 V needed to light a CCFL.

EL-WLED: The LCD panel is lit by a row of white LEDs placed at one or more edges of the screen. A light diffuser (light guide plate, LGP) is then used to spread the light evenly across the whole display, similarly to edge-lit CCFL LCD backlights. The diffuser is made out of either PMMA plastic or special glass, PMMA is used in most cases because it is rugged, while special glass is used when the thickness of the LCD is of primary concern, because it doesn"t expand as much when heated or exposed to moisture, which allows LCDs to be just 5mm thick. Quantum dots may be placed on top of the diffuser as a quantum dot enhancement film (QDEF, in which case they need a layer to be protected from heat and humidity) or on the color filter of the LCD, replacing the resists that are normally used.

WLED array: The LCD panel is lit by a full array of white LEDs placed behind a diffuser behind the panel. LCDs that use this implementation will usually have the ability to dim or completely turn off the LEDs in the dark areas of the image being displayed, effectively increasing the contrast ratio of the display. The precision with which this can be done will depend on the number of dimming zones of the display. The more dimming zones, the more precise the dimming, with less obvious blooming artifacts which are visible as dark grey patches surrounded by the unlit areas of the LCD. As of 2012, this design gets most of its use from upscale, larger-screen LCD televisions.

RGB-LED array: Similar to the WLED array, except the panel is lit by a full array of RGB LEDs. While displays lit with white LEDs usually have a poorer color gamut than CCFL lit displays, panels lit with RGB LEDs have very wide color gamuts. This implementation is most popular on professional graphics editing LCDs. As of 2012, LCDs in this category usually cost more than $1000. As of 2016 the cost of this category has drastically reduced and such LCD televisions obtained same price levels as the former 28" (71 cm) CRT based categories.

Monochrome LEDs: such as red, green, yellow or blue LEDs are used in the small passive monochrome LCDs typically used in clocks, watches and small appliances.

Mini-LED: Backlighting with Mini-LEDs can support over a thousand of Full-area Local Area Dimming (FLAD) zones. This allows deeper blacks and higher contrast ratio.

Today, most LCD screens are being designed with an LED backlight instead of the traditional CCFL backlight, while that backlight is dynamically controlled with the video information (dynamic backlight control). The combination with the dynamic backlight control, invented by Philips researchers Douglas Stanton, Martinus Stroomer and Adrianus de Vaan, simultaneously increases the dynamic range of the display system (also marketed as HDR, high dynamic range television or FLAD, full-area local area dimming).

The LCD backlight systems are made highly efficient by applying optical films such as prismatic structure (prism sheet) to gain the light into the desired viewer directions and reflective polarizing films that recycle the polarized light that was formerly absorbed by the first polarizer of the LCD (invented by Philips researchers Adrianus de Vaan and Paulus Schaareman),

A pink elastomeric connector mating an LCD panel to circuit board traces, shown next to a centimeter-scale ruler. The conductive and insulating layers in the black stripe are very small.

A standard television receiver screen, a modern LCD panel, has over six million pixels, and they are all individually powered by a wire network embedded in the screen. The fine wires, or pathways, form a grid with vertical wires across the whole screen on one side of the screen and horizontal wires across the whole screen on the other side of the screen. To this grid each pixel has a positive connection on one side and a negative connection on the other side. So the total amount of wires needed for a 1080p display is 3 x 1920 going vertically and 1080 going horizontally for a total of 6840 wires horizontally and vertically. That"s three for red, green and blue and 1920 columns of pixels for each color for a total of 5760 wires going vertically and 1080 rows of wires going horizontally. For a panel that is 28.8 inches (73 centimeters) wide, that means a wire density of 200 wires per inch along the horizontal edge.

The LCD panel is powered by LCD drivers that are carefully matched up with the edge of the LCD panel at the factory level. The drivers may be installed using several methods, the most common of which are COG (Chip-On-Glass) and TAB (Tape-automated bonding) These same principles apply also for smartphone screens that are much smaller than TV screens.anisotropic conductive film or, for lower densities, elastomeric connectors.

Monochrome and later color passive-matrix LCDs were standard in most early laptops (although a few used plasma displaysGame Boyactive-matrix became standard on all laptops. The commercially unsuccessful Macintosh Portable (released in 1989) was one of the first to use an active-matrix display (though still monochrome). Passive-matrix LCDs are still used in the 2010s for applications less demanding than laptop computers and TVs, such as inexpensive calculators. In particular, these are used on portable devices where less information content needs to be displayed, lowest power consumption (no backlight) and low cost are desired or readability in direct sunlight is needed.

A comparison between a blank passive-matrix display (top) and a blank active-matrix display (bottom). A passive-matrix display can be identified when the blank background is more grey in appearance than the crisper active-matrix display, fog appears on all edges of the screen, and while pictures appear to be fading on the screen.

Displays having a passive-matrix structure are employing Crosstalk between activated and non-activated pixels has to be handled properly by keeping the RMS voltage of non-activated pixels below the threshold voltage as discovered by Peter J. Wild in 1972,

STN LCDs have to be continuously refreshed by alternating pulsed voltages of one polarity during one frame and pulses of opposite polarity during the next frame. Individual pixels are addressed by the corresponding row and column circuits. This type of display is called response times and poor contrast are typical of passive-matrix addressed LCDs with too many pixels and driven according to the "Alt & Pleshko" drive scheme. Welzen and de Vaan also invented a non RMS drive scheme enabling to drive STN displays with video rates and enabling to show smooth moving video images on an STN display.

Bistable LCDs do not require continuous refreshing. Rewriting is only required for picture information changes. In 1984 HA van Sprang and AJSM de Vaan invented an STN type display that could be operated in a bistable mode, enabling extremely high resolution images up to 4000 lines or more using only low voltages.

High-resolution color displays, such as modern LCD computer monitors and televisions, use an active-matrix structure. A matrix of thin-film transistors (TFTs) is added to the electrodes in contact with the LC layer. Each pixel has its own dedicated transistor, allowing each column line to access one pixel. When a row line is selected, all of the column lines are connected to a row of pixels and voltages corresponding to the picture information are driven onto all of the column lines. The row line is then deactivated and the next row line is selected. All of the row lines are selected in sequence during a refresh operation. Active-matrix addressed displays look brighter and sharper than passive-matrix addressed displays of the same size, and generally have quicker response times, producing much better images. Sharp produces bistable reflective LCDs with a 1-bit SRAM cell per pixel that only requires small amounts of power to maintain an image.

Segment LCDs can also have color by using Field Sequential Color (FSC LCD). This kind of displays have a high speed passive segment LCD panel with an RGB backlight. The backlight quickly changes color, making it appear white to the naked eye. The LCD panel is synchronized with the backlight. For example, to make a segment appear red, the segment is only turned ON when the backlight is red, and to make a segment appear magenta, the segment is turned ON when the backlight is blue, and it continues to be ON while the backlight becomes red, and it turns OFF when the backlight becomes green. To make a segment appear black, the segment is always turned ON. An FSC LCD divides a color image into 3 images (one Red, one Green and one Blue) and it displays them in order. Due to persistence of vision, the 3 monochromatic images appear as one color image. An FSC LCD needs an LCD panel with a refresh rate of 180 Hz, and the response time is reduced to just 5 milliseconds when compared with normal STN LCD panels which have a response time of 16 milliseconds.

Samsung introduced UFB (Ultra Fine & Bright) displays back in 2002, utilized the super-birefringent effect. It has the luminance, color gamut, and most of the contrast of a TFT-LCD, but only consumes as much power as an STN display, according to Samsung. It was being used in a variety of Samsung cellular-telephone models produced until late 2006, when Samsung stopped producing UFB displays. UFB displays were also used in certain models of LG mobile phones.

Twisted nematic displays contain liquid crystals that twist and untwist at varying degrees to allow light to pass through. When no voltage is applied to a TN liquid crystal cell, polarized light passes through the 90-degrees twisted LC layer. In proportion to the voltage applied, the liquid crystals untwist changing the polarization and blocking the light"s path. By properly adjusting the level of the voltage almost any gray level or transmission can be achieved.

In-plane switching is an LCD technology that aligns the liquid crystals in a plane parallel to the glass substrates. In this method, the electrical field is applied through opposite electrodes on the same glass substrate, so that the liquid crystals can be reoriented (switched) essentially in the same plane, although fringe fields inhibit a homogeneous reorientation. This requires two transistors for each pixel instead of the single transistor needed for a standard thin-film transistor (TFT) display. The IPS technology is used in everything from televisions, computer monitors, and even wearable devices, especially almost all LCD sma