damage lcd screen by touching free sample

Even on screens that aren’t meant to be touched (e.g. not a touchscreen!) a simple tap or swipe with a fingertip, where the screen is not visibly deformed, won’t do any harm except maybe to leave behind a little skin oil.

But — of course! — if you press any screen with a sharp object, you may damage its covering; and if you press very hard even with your finger you may damage the internal components of the screen.

BTW: Most screens sold as “LEDs” are still actually LCDs, but with an LED backlight. Only “emissive” technologies, such as xOLED, are true LEDs with no backlight.

The app does what it says it does: it reduces touchscreen lag and adjusts sensitivity. My phone was having issues detecting my taps, either by lagging or by not registering my tap. After using this app, all of the touchscreen-related issues were resolved! Just one issue: there"s ads on this app, one even covering the screen, and considering how infrequently one would use this app, putting in ads just seems like a waste of effort. Regardless, it does what it"s supposed to, and that"s great!

However, if the digitizer or LCD is also damaged during a fall, that screen no longer carries value because it cannot be refurbished. Repair shops cannot sell broken LCDs to refurbishing companies; therefore, they cannot offset the cost of an LCD repair. That is why repair stores often charge a little extra if there is damage to the LCD or digitizer, to make up for that loss. Repair stores that don’t have an additional charge for an LCD repair typically inflate their glass repair price to make up for the loss from damaged LCDs. If they have one price, that means everyone is paying more to cover the cost of customers who have damaged LCDs and customers who only have cracked glass. This is why TCR separates the price of glass and LCD repairs for you! If you only have cracked glass, you only have to worry about paying to replace the cracked glass.

If your phone or tablet’s glass is shattered there will be cracks or chips on the screen itself. If it is just the glass that is damaged, the device may still function and you may be able to use it normally. If this is the case, it is likely that only the glass needs to be replaced. To prevent further damage to your device it is best to get it repaired quickly. For example, if liquids seep through the cracks it could cause permanent damage to the LCD.

Many people may continue to use their touchscreen with shattered glass and delay fixing the glass on their devices; however, if the touchscreen isn’t responsive, it could be a sign of more significant damage to the device’s digitizer which is integrated with the LCD screen.

A pixelated screen can indicate LCD damage. This would look like a patch of multicolored dots, a line or lines of discoloration, or a screen with rainbow colors. For many people, these colors are an easy way to know that their LCD is broken and that they should get it repaired.

Dropping your phone isn’t the only reason you’ll end up with a pixelated screen. Over time, your screen’s LCD may break down through regular use. This happens to other devices aside from your smartphone or tablet. Pixelation can happen to TVs and computers, too. People typically decide to buy a new device when this happens. Fortunately, with an LCD repair, you can fix the device without needing to replace it.

A black screen or black spots on your smartphone or tablet is an indication of a damaged LCD. Often with a bad LCD, a phone may still turn on and make noises, but there is no clear picture. This does not necessarily mean any other part of the phone is damaged and a simple screen replacement will get it functioning again. Sometimes it can mean a battery or other internal component is damaged. It is best to have a highly qualified phone repair technician diagnose what is wrong so the appropriate repair can be made.

Fortunately, your mobile device is fixable whether you cracked the glass or damaged the LCD. Stop by or call TCR: Triangle Cellular Repair at (919) 263-2699 for a free diagnostic and quick, affordable cell phone repair in Chapel Hill and surrounding areas. We’re always happy to help!

Accidental Damage is any damage due to an unintentional act that is not the direct result of a manufacturing defect or failure. Accidental damage is not covered under the standard warranty of the product. Such damage is often the result of a drop or an impact on the LCD screen or any other part of the product which may render the device non-functional. Such types of damage are only covered under an Accidental Damage service offering which is an optional add-on to the basic warranty of the product. Accidental Damage must not be confused with an occasional dead or stuck pixel on the LCD panel. For more information about dead or stuck pixels, see the Dell Display Pixel Guidelines.

No, accidental damage is covered for Dell computers or monitors which are covered under the Accidental Damage Service offering for that specific product.

For more information about Dell Limited Hardware Warranty and Dell"s Accidental Damage service offering, see the Dell Warranty & Support Services page.

NOTE: Other damages may be considered customer induced if determined by Dell Technical Support, an on-site field engineer, or at the mail-in repair center.

The LCD glass on the display is manufactured to rigorous specifications and standards and will not typically crack or break on its own under normal use. In general, cracked, or broken glass is considered accidental damage and is not covered under the standard warranty.

Internal cracks typically occur due to excessive force on the screen. This can be the result of some object hitting the screen, a drop, attempting to close the lid while an object is on the keypad area, or even holding the laptop by its screen.

Spots typically occur due to an external force hitting the screen causing damage to the LCD panel"s backlight assembly. While the top layer did not crack or break, the underlying area was compressed and damaged causing this effect.

If your Dell laptop LCD panel has any accidental damage but the laptop is not covered by the Accidental Damage service offering, contact Dell Technical Support for repair options.

Dell monitors cannot be repaired by an on-site field engineer or at the mail-in repair center. If you notice any damage to the monitor, you must purchase a new monitor.

Cracked your mobile phone display? Dropped it in the street, or crushed it playing football? Sat on it, even? You know by now that you"ve given yourself a headache. Can the phone be repaired, and if so, what are the costs?

Fitting a new display that costs the same as a replacement phone is pointless. However, if replacing the mobile phone screen is closer to $15, it makes sense to have a go yourself.

Amazon is also a resource for replacement screens, but you should also consider a general Google search as this will turn up specialist suppliers who might be able to provide a lower price.

These are often threaded through the different layers of hardware within the phone. Ribbon cables are delicate; easily broken, take care as damage to these could change the dynamic of the repair considerably.

In this case, you won"t need to remove the display, but you will need to remove components (and even the motherboard) from the damaged device into the new body.

The moment of truth: does the new screen work? Remember, a touchscreen display has two purposes: touch interaction, and displaying the phone"s operating system.

Well, I would like to tell you that the touch screen not working or unresponsive touchscreen on Android is a common issue. And, this issue doesn’t only happen with Android, Apple users also experience the iPhone/iPad touchscreen not working issue.

So, if you have also come across the same issue and want to fix it then this blog is definitely for you. Here you will get to know about how to fix the touchscreen problem on Android?

To fix the Android touchscreen not working issue remove the SD card and SIM card, boot the phone in the safe mode, run antivirus scan, diagnose the phone display, and factory reset your phone. Well, these are not the only ways to deal with this issue. To find out the complete list of solutions, keep reading this guide.

If your Android device touch screen is not physically damaged or smashed and it had stopped working all of a sudden and does not respond to your touch, then this may be caused due to software issues.

If your phone’s touch screen is not working, then it is possible that this issue is appearing due to the system issue. In this situation, it is better to use the Android Repair Tool.

This tool will fix all of the system issues that might be causing this problem on your phone. Not just this, but it can also fix several other problems, such as the phone being stuck in the boot loop, apps crashing issues, black screen of death error, battery issues, and many more.

A soft resetting of the phone is a very basic move but in some cases, it works magically. If the phone touch screen not working is not happening due to any major issue, this trick may get your job done. Here’s how to fix unresponsive touch screen on Android:

Sometimes, the screen damage is not the actual reason for the unresponsiveness. There might be some issue with the memory card or SIM card. In this situation, you should try removing the SD or SIM card from your phone:

Mostly Android touch screen doesn’t work due to the screen protector. Even though a screen protector protects your phone’s screen from damage, dust, scratches, and water drops, it can also cause issues, such as the touchscreen not working.

If there is any scratch on the screen protector or is completely damaged, then thetouchscreen of your phone won’t respond. In this case, the best solution would be to remove the protector.

However, it will only work if the issue is happening due to the screen protector. If it is not working, then there must be some other issue with your phone screen. Hence, follow the other listed solutions.

It is a temporary solution to this issue, but you can use it until you find the actual reason or fix the issue permanently. You don’t only need to rely on the touch screen to control the phone. There are other options too to navigate through the phone.

You can try the 3-party apps to use the face or voice recognition feature to access your phone. However, this trick can only work if your phone touchscreen is at least partially working so that you can download the app.

To control the phone with the voice, you can use Google’s Voice Access app. This app will listen to your commands & assign a number for each action available on the phone screen. After this, you don’t need to tap on the screen.

Now, just call out the assigned number.Voice Access app also fixes the phrases for certain actions. For example, if you say go back, the app will take you back to the previous screen.

The EVA Facial Mouse app is a virtual cursor that can let you navigate through your phone using face recognition technology. To move the phone screen, simply move your phone in that direction.

If the above-given solutions failed for you, then you can try to boot your phone into Safe Mode to fix the problem. It will help you to recognize whether the touchscreen issue is caused due to any of the recently installed apps.

If your Android touchscreen works properly afterbooting the device into the Safe Mode, then it means the recent third-party app was a culprit behind this problem. Once you find out about the troublesome 3rd party app, simply uninstall it on your phone.

If your touch screen problem is not affecting your ability to download apps from the Play Store, then download and install an anti-malware application and scan your device. Maybe this can fix all your problems.

There are various apps available in the Play Store that can calibrate your device’s touch screen and improve its accuracy and responsiveness. These apps are very much effective particularly when your touch screen responds inaccurately or responds too slow.

Open Play Store, type “touch screen calibration” in the search bar and you will get a few results. Check the ratings and read the review carefully before you download them.

Wondering why my phone touchscreen is not working? If so, you should try 3rd party apps tofix display issues on your Android phone. There are so many apps on the Google Play Store that can diagnose the touchscreen problem of your phone.

These apps will help you to pinpoint what is wrong with your phone screen.For this, I recommend using the Display Tester. First, download and install the app on your device and then follow these instructions:

Here, you will get a bunch of options to test the issue from all aspects. With this tool, you can detectburn-in on OLED screens, dead pixels, the accuracy of saturation and contrast, multi-touch status, etc.

If the touch screen is totally unresponsive on an Android phone/tablet, then it is time to perform factory on the device. As doing this will erase all data on your Android device, you should only go with this option if nothing else is working out for you.

Then with the help of the Volume Up or Volume Down button select the option “wipe data/factory reset” option and confirm it by pressing the Powerbutton.

If your Android phone or tablet screen has been physically damaged due to several reasons such as a dropped the device in water, on the floor from a high distance, smashing the screen, or breaking the device then the touch screen could be damaged and thus stop responding.

The first thing we are going to do is use the star codes to check if the touchscreen of the Android phone or tablet is working or not. First, dial the start codes compatible with your Android device.

Simply dial the codes, to open the device’s diagnostic mode. Once you enter into diagnostic mode, you can test the touchscreen for bugs and dead zones.

In this case, you can try one trick. Simply, knock each corner of the touch screen 2-3 times and then see if the Android unresponsive touchscreen issue has been resolved or not. If it is still not working, then you can try the next fixes.

There are some instances where the Android touch screen stopped responding after the phone is dropped into the water or due to some reason water drops gets inside the screen.

Nevertheless, you can still fix this problem and get your phone screen back to its normal working condition. For this, you must check out the guide on how to how to fix unresponsive touch screen on Android damaged by water.

This is a straightforward solution, if there is a hardware issue with your phone, then you don’t have any other option but to buy a new touchscreen for your phone.

There are some cases, where the phone touchscreen can be accessed partially. In this situation, the 3rd party apps can help you out in resolving the problem and enhancing the screen latency. There are so many apps that can calibrate the phone screen to decrease the response time.

This tool will suggest you click on several sections of the touchscreen. After doing this, the app will reduce the latency according to the phone model.

Many people ask how to fix unresponsive touch screen Android but before that, is important to know what are the reasons for the touch screen not working on Android, right?

Physical damage– Maybe your Android phone is damaged or broken. Or maybe it’s due to moisture detected issues, high temperature, static electricity, cold, etc can lead to touch screen damage on Android phones.

The Android touch screen is not working/became unresponsive? Now, wondering how to recover data from an unresponsive touch screen of an Android phone?

You can use the user guide to find out how Android Data Recovery Toolworks in order to recover data from an Android device with an unresponsive touch screen.

Yes, the cracked screen affects the responsiveness of the touchscreen. When the phone screen gets cracked, the digitizer, an important component of the phone, starts interrupting the touch of the screen. But when the phone screen totally get damaged, the digitizer gets exposed to water, dust, moisturewhich leads to major damage.

If you see a phone’s screen then it has two major parts: the actual LCD and the glass. The glass of the screen can be replaced easily but when the LCD gets damaged the repairing of the device becomes a risky task.

There are ways to fix the cracked screen temporarily. You can use a screen protector or tape to fix it. First, clean the phone screen as much you can and put packaging tape over the screen. If there is some extra tape then remove it. And now you can use the phone as before but remember, it’s a temporary fix.

Though the most Android phone touchscreen issue can be solved by removing the screen protector and cleaning the screen with a soft, slightly damp, lint-free cloth. but if that doesn’t work, you can try the other ways shared in this blog to solve how to fix unresponsive touch screen Android phone issue.

On the other, you may also lose your important and valuable data from your device, hence it is recommended that you must try Android Data Recovery Softwareto recover data from an Android device whose touch screen is not working or became unresponsive.

LCD Displays are interfaces of human and machine. They expose to various environments, especially now that COVID-19 spreading around the world. So it"s impossible to keep a screen clean all the time. When you are going to clean an LCD display，do you have the right steps in mind？Maybe what you"ve been doing is not right！

LCD screens could have different top layers. For example, there are glass, plastic, coating, or protective bezels. Each one of them is different. Therefore, each type of screen should not be cleaned in only one way. In fact, the most appropriate way is written in product manual. Take Topway HMT070ETD-1D, a 7 inch Smart TFT LCD Display with capacitive touch screen, as an example. Cleaning precautions are as follow: Only clean LCD with a soft dry cloth. Isopropyl Alcohol or Ethyl Alcohol. Other solutions(e. g. water) may damage the LCD.

LCD screens are fragile. Before cleaning an LCD display, you should turn it off completely, disconnect it from power supply,  and let it cool down for a few minutes. This will eliminate danger of electrocution and make it easier to see dust on screen.

Don’t press down hard while cleaning, because that action may damage top layers or coating. Spray a little cleaning solution, such as isopropyl alcohol diluted with either pure or distilled water, onto a microfiber cloth and gently wipe the display in either an up and down or side to side motion. Too much pressure can compromise limited durability of even the most rugged LCD screens.

It is dangerous that an LCD display directly contacts with any liquids (especially when they’re still plugged in). A safer and smarter approach is to first wipe the screen with a dry cloth, then spray a small amount of cleaning solution onto another cloth and wipe gently. After that, wipe with another clean, dry cloth to remove the residual liquid.

Never use ammonia or rubbing alcohol based cleaners on LCD screens. They will damage the extremely delicate coating on top of screens, and negatively alter viewing experience, especially in strong sunlight.

Dust in gaps where bezels and top layers meet can cause internal damage to LCD displays. Regularly using a vacuum with a soft-bristled brush (to prevent scratching) can be helpful.

Now you know how to clean an LCD screen safely and correctly, if you find it helpful, please share this article with your friends. If there are more questions about LCD displays, please feel free to leave us a message.

When it comes to cleaning, flat-screen TVs and LCD screens require special care and a gentle touch. With the wrong technique, you can easily scratch the screen or damage the surface"s antiglare coating. Even rubbing too hard can cause pixels (the tiny dots that compose images on computer monitors and TV screens) to burn out and stop working permanently. Most household cleaning products are too harsh to use on electronic devices with LCD or OLED screens, so choose your TV cleaning strategy carefully. These tips on how to clean a TV screen will help protect your device while ridding it of dust, smudges, fingerprints, and streaks.

Before you begin cleaning a TV or LCD monitor screen, check the manufacturer"s manual for cleaning instructions. If a computer or electronic wipe is recommended, purchase a container for quick cleanups. Note that using a cleaning product or method not recommended by the manufacturer will likely void a product"s warranty. It"s also important to avoid spraying liquid on the screen when cleaning a TV. Liquids can drip into the frame, get wicked inside the screen, and cause permanent damage.

If streaks or stains remain, wet a microfiber cloth with distilled water and wring the cloth until it"s almost dry. With very little pressure, wipe the cloth across the screen in broad motions, working from the top of the screen to the bottom. If smudges persist, dampen a new microfiber cloth with 50-50 water and vinegar solution, wringing it tightly to keep it slightly damp, and wipe.

To avoid damage to your TV while cleaning, only use gentle products. Never wipe the screen with paper towels, abrasive sponges, or coarsely woven rags, which can cause scratches. Instead, use high-quality, finely woven microfiber cloths to clean TV screens, recommends cleaning expert Leslie Reichert.

You should also avoid cleaning products that contain alcohol or ammonia. These types of cleaners can remove antiglare coatings and cause images to become cloudy or distorted. A simple swipe with a microfiber cloth ($9 for 5, Amazon) is typically all that"s needed to remove dust and other debris from the screen"s surface. When more than a light dusting is required, however, use the guidelines below for the best way to clean a TV.

Practice preventative measures so you won"t have to clean TV screens often. Keep food, drinks, and kids away from TV and computer screens to eradicate risks of messy splatters and fingerprint smudges. During your weekly house cleaning, lightly dust the screens with a microfiber cloth to prevent dust buildup.

Many Apple products use liquid crystal displays (LCD). LCD technology uses rows and columns of addressable points (pixels) that render text and images on the screen. Each pixel has three separate subpixels—red, green and blue—that allow an image to render in full color. Each subpixel has a corresponding transistor responsible for turning that subpixel on and off.

Depending on the display size, there can be thousands or millions of subpixels on the LCD panel. For example, the LCD panel used in the iMac (Retina 5K, 27-inch, 2019) has a display resolution of 5120 x 2880, which means there are over 14.7 million pixels. Each pixel is made up of a red, a green, and a blue subpixel, resulting in over 44 million individual picture elements on the 27-inch display. Occasionally, a transistor may not work perfectly, which results in the affected subpixel remaining off (dark) or on (bright). With the millions of subpixels on a display, it is possible to have a low number of such transistors on an LCD. In some cases a small piece of dust or other foreign material may appear to be a pixel anomaly. Apple strives to use the highest quality LCD panels in its products, however pixel anomalies can occur in a small percentage of panels.

In many cases pixel anomalies are caused by a piece of foreign material that is trapped somewhere in the display or on the front surface of the glass panel. Foreign material is typically irregular in shape and is usually most noticeable when viewed against a white background. Foreign material that is on the front surface of the glass panel can be easily removed using a lint free cloth. Foreign material that is trapped within the screen must be removed by an Apple Authorized Service Provider or Apple Retail Store.

The use of liquid crystal displays (LCDs) in user interface assemblies is widespread across nearly all industries, locations, and operating environments. Over the last 20 years, the cost of LCD displays has significantly dropped, allowing for this technology to be incorporated into many of the everyday devices we rely on.

The odds are high you are reading this blog post on a laptop or tablet, and it’s likely the actual screen uses LCD technology to render the image onto a low-profile pane of glass. Reach into your pocket. Yes, that smartphone likely uses LCD technology for the screen. As you enter your car, does your dashboard come alive with a complex user interface? What about the menu at your favorite local drive-thru restaurant? These are some everyday examples of the widespread use of LCD technology.

But did you know that the U.S. military is using LCD displays to improve the ability of our warfighters to interact with their equipment? In hospitals around the world, lifesaving medical devices are monitored and controlled by an LCD touchscreen interface. Maritime GPS and navigation systems provide real-time location, heading, and speed information to captains while on the high seas. It’s clear that people’s lives depend on these devices operating in a range of environments.

As the use of LCDs continues to expand, and larger screen sizes become even less expensive, one inherent flaw of LCDs remains: LCD pixels behave poorly at low temperatures. For some applications, LCD displays will not operate whatsoever at low temperatures. This is important because for mil-aero applications, outdoor consumer products, automobiles, or anywhere the temperature is below freezing, the LCD crystal’s performance will begin to deteriorate. If the LCD display exhibits poor color viewing, sluggish resolution, or even worse, permanently damaged pixels, this will limit the ability to use LCD technologies in frigid environments. To address this, there are several design measures that can be explored to minimize the impact of low temperatures on LCDs.

Most LCD displays utilize pixels known as TFT (Thin-Film-Transistor) Color Liquid Crystals, which are the backbone to the billions of LCD screens in use today. Since the individual pixels utilize a fluid-like crystal material as the ambient temperature is reduced, this fluid will become more viscous compromising performance. For many LCD displays, temperatures below 0°C represent the point where performance degrades.

Have you tried to use your smartphone while skiing or ice fishing? What about those of you living in the northern latitudes - have you accidently left your phone in your car overnight where the temperatures drop well below freezing? You may have noticed a sluggish screen response, poor contrast with certain colors, or even worse permanent damage to your screen. While this is normal, it’s certainly a nuisance. As a design engineer, the goal is to select an LCD technology that offers the best performance at the desired temperature range. If your LCD display is required to operate at temperatures below freezing, review the manufacturer’s data sheets for both the operating and storage temperature ranges. Listed below are two different off-the-shelf LCD displays, each with different temperature ratings. It should be noted that there are limited options for off-the-shelf displays with resilience to extreme low temperatures.

For many military applications, in order to comply with the various mil standards a product must be rated for -30°C operational temperature and -51°C storage temperature. The question remains: how can you operate an LCD display at -30°C if the product is only rated for -20°C operating temperature? The answer is to use a heat source to raise the display temperature to an acceptable range. If there is an adjacent motor or another device that generates heat, this alone may be enough to warm the display. If not, a dedicated low-profile heater is an excellent option to consider.

Made of an etched layer of steel and enveloped in an electrically insulating material, a flat flexible polyimide heater is an excellent option where space and power are limited. These devices behave as resistive heaters and can operate off a wide range of voltages all the way up to 120V. These heaters can also function with both AC and DC power sources. Their heat output is typically characterized by watts per unit area and must be sized to the product specifications. These heaters can also be affixed with a pressure sensitive adhesive on the rear, allowing them to be “glued” to any surface. The flying leads off the heater can be further customized to support any type of custom interconnect. A full-service manufacturing partner like Epec can help develop a custom solution for any LCD application that requires a custom low-profile heater.

With no thermal mass to dissipate the heat, polyimide heaters can reach temperatures in excess of 100°C in less than a few minutes of operation. Incorporating a heater by itself is not enough to manage the low temperature effects on an LCD display. What if the heater is improperly sized and damages the LCD display? What happens if the heater remains on too long and damages other components in your system? Just like the thermostat in your home, it’s important to incorporate a real-temp temperature sensing feedback loop to control the on/off function of the heater.

The next step is to determine the number of temperature sensors and their approximate location on the display. It’s recommended that a minimum of two temperature sensors be used to control the heater. By using multiple sensors, this provides the circuit redundancy and allows for a weighted average of the temperature measurement to mitigate non-uniform heating. Depending on the temperature sensors location, and the thermal mass of the materials involved, the control loop can be optimized to properly control the on/off function of the heater.

Another important consideration when selecting a temperature sensor is how to mount the individual sensors onto the display. Most LCD displays are designed with a sheet metal backer that serves as an ideal surface to mount the temperature sensors. There are several types of thermally conductive epoxies that provide a robust and cost-effective way to affix the delicate items onto the display. Since there are several types of epoxies to choose from, it’s important to use a compound with the appropriate working life and cure time.

For example, if you are kitting 20 LCD displays and the working life of the thermal epoxy is 8 minutes, you may find yourself struggling to complete the project before the epoxy begins to harden.

Before building any type of prototype LCD heater assembly, it’s important to carefully study the heat transfer of the system. Heat will be generated by the flexible polyimide heater and then will transfer to the LCD display and other parts of the system. Although heat will radiate, convect, and be conducted away from the heater, the primary type of heat transfer will be through conduction. This is important because if your heater is touching a large heat sink (ex. aluminum chassis), this will impact the ability of the heater to warm your LCD display as heat will be drawn toward the heat sink.

Before freezing the design (no pun intended) on any project that requires an LCD display to operate at low temperatures, it’s critical to perform low temperature first. This type of testing usually involves a thermal chamber, a way to operate the system, and a means to measure the temperature vs time. Most thermal chambers provide an access port or other means to snake wires into the chamber without compromising performance. This way, power can be supplied to the heater and display, while data can be captured from the temperature sensors.

The first objective of the low-temperature testing is to determine the actual effects of cold exposure on the LCD display itself. Does the LCD display function at cold? Are certain colors more impacted by the cold than others? How sluggish is the screen? Does the LCD display performance improve once the system is returned to ambient conditions? These are all significant and appropriate questions and nearly impossible to answer without actual testing.

As LCD displays continue to be a critical part of our society, their use will become even more widespread. Costs will continue to decrease with larger and larger screens being launched into production every year. This means there will be more applications that require their operation in extreme environments, including the low-temperature regions of the world. By incorporating design measures to mitigate the effects of cold on LCD displays, they can be used virtually anywhere. But this doesn’t come easy. Engineers must understand the design limitations and ways to address the overarching design challenges.

A full-service manufacturing partner like Epec offers a high-value solution to be able to design, develop, and manufacture systems that push the limits of off-the-shelf hardware like LCD displays. This fact helps lower the effective program cost and decreases the time to market for any high-risk development project.

Before you give into your impulses and wipe your screen with whatever you have at hand, let us stop you right there. Your display is way more delicate than you think, and if you want it to last a long time in optimal conditions, you’ll need to treat it with proper love and care.

The good news is that cleaning a computer screen is more simple than you think. You only need a soft cloth, a tiny bit of water, and the most delicate of touches.

As you would expect, not all screens are created equal, and some are more delicate than others. The safest way to figure out the proper care for your screen is to search for the make and model of your device, find out if it has an LCD, LED, or some other type of display, and search for the manufacturer’s instructions on how to care for it.

If you want to skip all that, there’s an easy way to avoid making a mistake that might not only result in irreparable damage to your screen but to your entire device. According to Joe Silverman, owner of New York Computer Help, a tech repair center in New York City, no matter how much money you spent on your computer or tablet, it probably has an LED or an LCD screen if you bought it within the last three years—and neither type benefits from window cleaner or highly concentrated alcohol.

That’s the uppermost layer of your screen, which is extremely sensitive to the acidity in alcohol and in compounds like ammonia or propylene glycol. These are often present in cleaning agents such as window cleaners and degreasers. Using these liquids will corrode the surface of your screen, resulting in scratches or even smudges you won’t be able to get rid of.

Things get even trickier when you’re dealing with touchscreens. On models like the Microsoft Surface, the display is the main input—as opposed to your mouse or trackpad on a regular laptop—so it’s ultra-sensitive, Silverman says. Using a strong liquid cleaner like a degreaser or a bleach-based disinfectant can obliterate the top layer on the screen. Combine that with high pressure, and you can kiss your fancy touchscreen computer goodbye.

Another downside to newer computers is their size and weight. If you decided to splurge on a new laptop, for example, you probably found one that has top-notch components, but also a slick, lightweight design. This format is only possible if everything in your laptop is smaller and thinner. In the case of your display, a thinner screen means a weaker barrier between your computer’s guts and the elements in the outside world.

Caring for your screen is simple—it only takes a little bit of water and a dust-free cloth, such as a microfiber wipe or the piece of fabric that came with your glasses.

First, turn off your computer and disconnect the charger. This might sound paranoid, but the benefit is twofold—you avoid any chance of triggering an electrical surge, and your screen will remain black, which will make it easier to see any dirt and grime.

Pour a couple drops of water on your cloth. Forget paper towels or the sleeve of that soft cotton t-shirt you love—microfiber is your best bet. Still, no matter how soft it is, a dry wipe could always leave micro-abrasions on your screen. The moisture will also help gather dust and particles while lifting grease from your display.

Use circular motions starting in the center of your screen and moving outward, so you don’t leave any streaks. If you can see any droplets or water traces on the glass while you clean, you’ve used way too much water. Gently dab the residual H2O with an absorbent cloth or tissue paper and start again.

If you’re dealing with next-level gunk, you can use isopropyl alcohol at 70 percent or lower, Silverman says. “That percentage is very important,” he explains. “We’d only use 90 percent or higher on dummy parts that don’t have sensors, like top cases and keyboards.” In these extreme cases, spray the alcohol on the cloth, never directly on the screen, and wipe it gently.

Just like solar damage, screen damage is cumulative. The more pressure you apply, the more abrasive a product you use, and the more often you use it, the greater the damage you’re inflicting on the protective layer of your display and the delicate sensors underneath it.

Maybe you can get away with using a high percentage of alcohol or even a window cleaner on your computer screen once or twice. But if you keep at it, eventually you’ll see the deleterious effects.

“You’ll see discoloration, lines (vertical and horizontal); sometimes it looks pretty and rainbow-like,” Silverman says. “Sometimes it’ll blink and sometimes you’ll see droplets of water or liquid in the back of the screen. There’s a lot of ways in which damage appears.”

The best way to avoid damaging your screen while cleaning it is to simply keep it from getting dirty in the first place. If you have a laptop, cover the keyboard with a thin microfiber cloth before closing it to prevent finger grease from transferring to the screen. If you have a touchscreen, wash your hands often before you use it, but make sure you let your hands dry completely before you start tapping—the soapy water or liquid hand cleanser from your fingers can easily end up on the screen and corrode it.

Your phone was designed to be carried, dropped, tapped, swiped, smashed against your face for long periods of time, and stowed in the deepest corners of your bag. In other words, its screen is way more resilient than your computer’s.

Silverman explains that most iPhones and Samsung phones, for example, have screens made out of one thick piece of glass. These, as opposed to computer screens, have all the LCD layers fused together, making them much more difficult to damage. Still, if you’re using alcohol, he recommends keeping the concentration at 70 percent or lower, using a soft cloth, and applying only low pressure to get rid of any accumulated gunk there.

Be especially careful with charging ports, as contact with water (also present in rubbing alcohol) can damage the electronics inside your smartphone. Newer models often are resistant to liquids, but there’s always a threshold to how much they can withstand. And you probably don’t want to know what that is.

Replacing the screen of your computer or smartphone can be expensive, and even if that’s not an issue for you, no one wants their devices to fail when they need them the most. So remember these tips well—we hope you never have to read this article again.

• Perform highly diversified duties to install and maintain electrical apparatus on production machines and any other facility equipment (Screen Print, Punch Press, Steel Rule Die, Automated Machines, Turret, Laser Cutting Machines, etc.).