how do i clean my lcd screen made in china

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Remember when your LCD or OLED display had that brand-new, fresh-out-of-the-box shine, feel and look? You are in the right place if your display is now due for deep cleaning.

Things to consider before cleaning or handling an electronic displayAvoid static by grounding your body and following proper ESD-safe handling techniques.

A microfiber cloth and distilled water is recommended for cleaning the display glass. Use Qtips and Isopropyl alcohol for cleaning the printed circuit board.

Although distilled water is recommended for wiping the display glass, you can use a cleanser developed explicitly for cleaning displays. However, do not spray it directly onto the display. Spray a tiny amount of the cleaner onto a microfiber cloth first to avoid getting any cleaning solution inside the display.Never spray any liquids directly onto the display.A spray is too hard to control and confine. The fluids can seep into the other display layers or surrounding components and cause irreversible liquid damage.

Only use a microfiber cloth and don"t use chemicals to clean a resistive touchscreen.Disconnect the display from the power supply and remove any screen protectors or liners.

Isopropyl alcohol (IPA) is widely used to clean printed circuit boards (PCBs). Use a Q-tip or soft small bristle brush for scrubbing a PCB, and never use a paintbrush.Gently rub a Q-tip in Isopropyl alcohol.

Cleaning soldering residue on LCD with Isopropyl alcohol and a Q-Tip.Cleaning residue around soldering elements is not necessary if Newhaven Display performed the soldering.

Cleaning your electronic display is a simple task. However, it is essential to consider these steps to handle and clean it properly. You should now have a better understanding of what cleaning products are safe to use, how to clean the display screen glass, how to clean touchscreens and how to clean soldering residue.

What can be better after a long day’s work than lying down on a sofa watching TV? The television can become our best friend to relieve the pressure from work, relationships, and annoying relatives. LCD TV displays as added “member” of the family also need to be taken care of. For this reason, it is recommended to regularly clean the LCD screen as dust and dirt may affect its performance. What we are trying to say is that if the television is too dirty, you won’t be enjoying your favorite program. Trust me! you do not want that…

How can we clean the LCD Display? This is a concern for many people. Before we find out the answer, we need to know what to avoid. Here, please do not take out your t-shirt and wipe the screen from those beer stains, calm down, and hear me out. Many people would easily make mistakes in solving this problem even without consciousness. So let’s take a look at some wrong cleaning methods first: Wiping the LCD Screen directly with the palm or fingers

You should know that LCD should not be touched. When rubbing with the palm or fingers, it is difficult to use the right amount of force. If the force is too strong, it may cause permanent damage to the liquid crystal molecules, which translate into watching at a multicolor liquid stain on your TV instead of your favorite show. Wipe the LCD screen with a rough towel

Someone may directly clean the LCD display with the towel used to wipe the table at home. However, this is a wrong behavior as you can scratch the surface or get the screen even dirtier. Do not also use paper towels, toilet paper, or old T-shirts. These materials are abrasive and leave a lot of residues.

Now that we know what we should not do, let us move with the proper cleaning methods. First of all, let us briefly explain the LCD TV display structure. The LCD panel is mainly composed of two sodium-free glass sandwiched by a polarizer, a liquid crystal layer, and a color filter. Feeling confused? check here our article about LCD TVdisplays.

Moving on to the cleaning. Well, the first thing you should do is to turn off your television. I know it seems obvious to say, but many people do not follow this step. After that, you have two main choices: standard or creative method:

The first being the standard option, is the most formal and troublesome. Stand up and go out buying the special LCD cleaner and microfiber cloth to clean the LCD screen. If you are too lazy, you can order it online. Although this method is effective, it implies that you need to buy the cleaning agent and my friend, depending on how regularly you clean, it can be expensive. Once bought the products, apply the cleaning agent to the cloth and gently wipe the entire surface of the LCD TV display, removing any visible traces of dirt and dust.

If you thought it was too easy after hearing the standard option, or those nasty stains are still there, we have the solution for you. Here we share the “creative” method.

Prepare a liquid solution using equal amounts of vinegar and water. Vinegar is a natural and safe detergent and is much cheaper than the products on the market, specially designed for cleaning televisions.

Dampen the microfiber cloth in the vinegar and water solution and then wipe your TV screen softly. If necessary, apply gentle pressure and a circular motion to the spots where you notice stubborn stains. Keep in mind not to spray the vinegar solution directly on the TV screen, as you could damage it irreparably.

Following, use a second microfiber cloth to dry the TV screen. Pay attention not to allow the screen to air dry. Otherwise, annoying halos may remain and influence image quality.

Finally, wash the plastic frame of the TV. If the frame also requires a more intensive cleaning, use some paper towels after wetting it in the vinegar and water solution. Use paper towels to dry it completely.

To better enjoy your LCD TV display, you need to take good care of it. Our team at Aiwa is devoted to developing innovative solutions for visual entertainment with LCD TV, LCD monitors, and other electronic devices. Our product offers a longer life-span and longevity.

Responsible for performing installations and repairs (motors, starters, fuses, electrical power to machine etc.) for industrial equipment and machines in order to support the achievement of Nelson-Miller’s business goals and objectives:

• 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.).

• Provide electrical emergency/unscheduled diagnostics, repairs of production equipment during production and performs scheduled electrical maintenance repairs of production equipment during machine service.

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.

There are a few types of cloth can be used. Microfiber is recommended. It is lightweight and soft, seldom produces loose fiber. Because of an intricate way in which minuscule fibers are intertwined, microfiber is able to remove large amounts of dirt and dust without leaving streaks or lint. You can also use a cotton cloth if you don’t have a microfiber one on hand.

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.

Television screens are supposed to be clean and free of dirt, dust, or any debris that may blur vision. This is why this component is one of the most vital parts of a Television. Nothing can be worse than straining your eyes to make sense of the pictures your set is projecting. If you do not clean your TV regularly, fingerprint smudges and dust will build up.

Cleaning your LED TV or any type of television for that matter is something you should do at least once every 2 or 3 weeks. In fact, I will suggest that you do it as often as you watch it any paying more attention to the screen when you do so. If you clean your TV set regularly, it will always look brand new, and you will enjoy bright and colorful pictures without said. Bearing that in mind, there are ways to go about a cleaning endeavor. Unfortunately, not everyone knows how to clean a set effectively. Many think that a piece of towel soaked in water will do. How wrong they are. Television screens are very sensitive, so a great deal of care is required to do the job effectively. In addition to that, being careful also protects the screen for damage. Secondly, you need to understand that TV sets are different. Although they all project sounds and images, they are built differently. So, therefore, the approach to cleaning should also be different as well.

The approach to cleaning an LED TV screen, for instance, requires extra care compared to the cleaning of a Tube TV. They both have screens, but the former is more sensitive than the latter due to the sensitivity of LED screens build material. Bearing all this in mind, how do you safely clean an LED TV screen without damaging it in the process. In this article, we will show you safe and intelligent ways to go about it using available and affordable materials. You will also learn a few tips about how to do it safely too.

Before you proceed, you need to bear two things in mind when cleaning LED TV screens. Firstly, you want to do it in such a way and with the right materials that ensure the screen is clean and devoid of dust or stains of any kind. You want your screen to be as bright and clear as possible. Secondly, you want to avoid damaging the screen or reducing its projection quality. This is why it is necessary to use only the right cleaning materials and approach at all times. Now, here are some helpful tips for adopting when cleaning an LED television screen. [/fusion_text]

Every electronic equipment comes with an owner’s manual. This manual provides the user with sufficient information about how to use and maintain the gadget. The same thing goes for LED sets. They come with an owner’s manual too. Before you clean the set, you may want to read the manual first.

In fact, it is advisable that you read it first immediately you buy and install it in your home. By reading the manual, you gain more understanding regarding how to care for the television all through it a lifespan in your home, office, or wherever you install it. For the purpose of cleaning, pay attention to the section that provides information about how to do it effectively.

Reading manuals is important because different television manufacturers provide different approaches to cleaning their sets. What works for an LG LED TV may not work for a Samsung set. That is why it is so important to only follow the recommendation of a one cap fits all approach to cleaning your TV screen. If you read the manual when you bought it, but you have forgotten the cleaning details, consult it once again to refresh your memory.

Before you start the cleaning properly, turn off the television set. Do not stop at that. You also need to unplug it from the power source. Once you have done that, do not start cleaning the screen immediately. Give it time to cool down. The cleaning process may take between 2-5 minutes or even more depend on your LED TV model or how long it was on.

Turning the TV off will cut off power leading to the cooling down of the screen. You don’t want to be cleaning a hot or warm screen, do you? You want to make sure that the screen is as cool as possible and non-reactive to whichever cleaning agent you use.

Another advice to take in that is so important is that you should never use paper towels to clean the screen. There are reasons to avoid paper towels. Paper towels, especially when soaked in water, leave smudges and stains on the screen. No matter how long or how hard you try to wipe the marks off, they yet remain. Paper towels are bad for your TV screen. It’s as simple as that.

To enjoy an ultimate cleaning experience, you should consider using microfiber cleaning pieces. Some people recommend cotton whole because they are more breathable. However, microfiber cloths are more durable. In addition, they do not stick to your screen. Older LED, or LCD screens can’t handle traditional cleaning methods or materials. With microfiber, you can eliminate stains, remove smudges, and fingerprints with ease.

To use microfiber, simply wipe the surface of the screen in a circular motion. Cover as much part of the screen as you possibly can. Work your way around the edges as well. More importantly, when cleaning, avoid touching the screen with your bare hands as doing so will leave fingerprint marks on it.

The use of chemicals should be avoided at all costs. Chemicals damage screens more than you know. That a chemical agent worked on a particular surface is not an indication that it will work well for your TV screen. LED screens are very sensitive and fragile, so you ought to make sure that you keep chemicals as far away as possible. Another material you should never use is a detergent solution (water and detergent).

Soap, scouring powder, was window cleaners, and any other general industrial cleaner should be avoided. Abrasive pads and towels made from paper should not be used either. Using any of these materials will lead to screen scratches, anti-glare coating damage, or permanent screen damage. The sad part is that the damage may not be noticeable at first, but over time, the same will become permanent.

If you must wet your cleaning material with water, do so in little splashes. Avoid spraying the screen directly with water. When wiping the screen, do so gently because it can break if pressed too hard as screens are very fragile.

You will notice that your microfiber cloth cannot reach the edges of the screen like the other areas. If you don’t clean the edges too, dust and first will accumulate in those parts, and after a time removing the stains will love difficult. Furthermore, failure to clean screen edges will lead to an uneven appearance, with poor picture quality being the end result. To clean edges and corners effectively, use cotton swabs to greater effect. For better results, dab the cotton swabs in water. Pick off the dirt carefully by dragging them out using the swabs. Do this for the four corners of the screen.

As for the edges, run the swabs up and down systematically but avoid running them all the way down to the edges as this may drive dirt further on that may be difficult to remove. For better results, use as many cotton swabs as you can.

Unlike an LED TV screen, cleaning a Tube TV is much easier. Tube TV screens are more rugged and can withstand pressure, but doing so carefully is also important. You can use a microfiber cleaning cloth doused in a little water. Never spray the screen directly as this may damage it. Rather, work your way with the microfiber cloth. Apply the same circular cleaning motion like you would do an LED TV screen. Cotton swabs will also come in handy to pick off the dirt from the screen corners.

Dish soap can also be used on LED and LCD screens, albeit with care. Before you use a dish soap solution, first wipe the screen with a dry cloth to remove dust. Now, dip your cleaning cloth in the dish soap solution. Squeeze off the liquid then gently wipe the screen. Make sure you cover every surface area. Once you are done, don’t waste time to clean; otherwise, the solution will dry up on the screen leading to a blurry vision. Rinse the cloth with water to remove soapy residue then take the dry cloth you used to wipe off the dust once again to dry the screen.

Yes, they do. There are actually cleaners specially made for cleaning tv screens. Screen cleaners contain distilled water, isopropyl, and alcohol solutions. If you must use an electronic screen cleaner, make sure you shake to content before use. Also, apply on a limited portion of your cleaning cloth.

Cleaning your TV remote control is part of a general TV cleaning process. So to clean your remote control, follow these tips. Pop-out the batteries:Remove the batteries from the remote. Doing so will create enough room when cleaning the interior casing.

Tap the remote lightly on a hard surface:Remote controls gather a lot of dust and debris along the way. To remove them, tap the remote control on a hard surface like a table. Do this gently and several times to dislodge debris stuck in crevices.

Use a mild disinfectant:Apply a cleaning disinfectant on a piece of cloth and clean the body thoroughly. The use of disinfectant is necessary because our hands carry germs, and we transfer these germs to the remote control anytime we operate it. Clean the whole body thoroughly.

Maintain a weekly timetable:To ensure that your TV set is always clean, make sure you clean it weekly. Add it as part of your to-do list when cleaning your home. If your furniture deserves regular cleaning, so does your television set. Doing regular cleaning will atop dust, debris and fingerprints from smearing the screen. It is also much easier to clean when there is little dust on the surface. Keeping a microfiber cloth close by is also advised so that you can quickly wipe off dust when necessary.

Never spray your LED TVset directly with any substance:Avoid spraying your screen directly with any substance even if it is an electronic cleaning gel. Excessive spraying can damage the cabinet and the structural make-up of the screen. If you must use any cleaning solution, apply it on the napkin or microfiber cloth you are using and gently wipe the screen with it.

Use a Vacuum:To draw out dust and debris hidden in the crevices of the set, use a low suction vacuum. You may also use the vacuum cleaner’s soft brush to remove dust from the cable, vents, and ports of the TV

Adhere strictly to the User Manual:Your LED TV set comes with a user manual for a reason. The manual is meant to guide your use of the device. When cleaning your set, make sure you follow the directives of the manufacturer. Doing it any other way may damage the TV beyond repair.

Avoid strong cleaning agents:Just like we pointed out in the article, avoid strong cleaning agent as not all of them are good for your television’s screen. The screen is very sensitive, so bear this in mind. Some examples of cleaning agents to avoid include unmixed alcohol, ammonia, acetone, and Wax.

Maintaining your LED TV set requires a lot of patience and attention to detail. If you want the screen to remain in good shape, you need to clean it regularly and with proper cleaning materials. If you follow the tips in this article, your screen will remain bright and sharp for as long as you use the set.

Nowadays with the rise of the Chinese phone, LED TVs, laptops, Notebooks, phablets, portable DVD players and so many other gadgets,  LCD screens are everywhere.

While their tube counterparts are basically special windows that can be cleaned in much the same way we do our windows, LCD screens require special attention. Improper cleaning may result in a serious financial expenditure in the form of a new screen as I recently learnt the hard way.

LCDs are made of a material that is thin and susceptible to scratching. Using the same material that you use for cleaning windows and old school screens may result in the screen getting damaged or scratched.

Power off the device be it a laptop, TV, tablet or phone. You should also unplug it if possible. Doing this reduces the risks of electrical shock, an electrical mishap because of liquids spilling into the device and makes it easier for you to see the dirt on the screen.

Using a non-abrasive soft cloth gently wipe the dust off the screen. Do not apply excessive pressure in an attempt to remove stubborn smudges such as those from finger prints. These can be removed later using a cleaning solution. You can buy micro-fiber cloth from opticians’ shops or perhaps computer shops. I couldn’t find it in these and found the fiber sold by opticians to be too small. The fiber is used to clean spectacles. I use my old Econet cotton T-shirt which is ideally soft. You can use a soft cotton T-shirt or handkerchief. Just make sure that it does not leave bits of lint behind as this makes cleaning difficult.

Mix a solution of 50% water and 50% white vinegar to use as a cleaning solution. Vinegar is available in most supermarkets. It is also preferable to use distilled water which you can obtain from pharmacies, battery shops or you could use bottled water as it is cleaner than tap water. Avoid the filthy poison that comes out of our taps by all means. Do not use Windowlene.

Gently wipe off the smudges and grime on the screen working in a circular motion. Avoid pressing into the monitor. Do not scrape the stubborn smudges just allow the cleaner to penetrate and dissolve them then gently wipe them away.

Touchscreens can handle much more abuse than TV and laptop screens so the later should be treated with care. I routinely used Windolene on my own laptop screen for years until a couple of weeks the screen just turned white. I had to pay through the nose to replace it. So just because your cleaning method has not yet ruined your screen does not mean you should continue using it. You have been warned.

If your screen is still dirty, apply a small amount of 70~75% isopropyl alcohol (IPA) solution to your cloth and gently wipe down the exterior of your screen. Alternatively, you can also use a 70~75% IPA wipe.

Repair guides can be hard to find. I"ve only seen guides for iMac but the general idea is the same. Remove the LCD assembly from the housing, remove the fixture tapes and side frames from the assembly, lift the panel and clean it. It seems that soft cloth is enough to clean the panels. Be aware of additional dust when wiping the panels and wipe gently, you may scarch the panel in the process if not careful enough. Make sure you seal the assembly well to prevent further dust.

It IS a very difficult repair, the assembly is very heavy, maybe more than 2/3 of the unit"s total weight, and it is a fragile piece of art. Several cables and sensors attach to the back side of the panel. You can easily damage them when lifting the LCD. There are many clips locking the frame. Quite tricky to remove. And at last the LCD driver board is connected to the panel by several ribbon cables. You must not tear any one of them or the entire unit is totaled. In conclusion, very challenging to do so.

SEOUL, Nov 5 (Reuters) - China has decided to approve $6 billion worth of investment in flat-screen plants by South Korea"s Samsung Electronicsand LG Display, a source said on Friday.

Asian makers of liquid crystal display (LCD) screens are rushing to set up production bases in China, which is expected to become the world’s biggest LCD TV market within a few years.

“China has decided to approve Korean firms’ investment plans but they have yet to receive official confirmation from the Chinese side,” a source close to the matter said.

Samsung, the world’s No.1 LCD maker, has sought Chinese approval for its 7.5-generation LCD manufacturing facility in Suzhou, Jiangsu province, requiring 2.6 trillion won ($2.35 billion) investment. [ID:nSEO131216]

LG Display has also signed a separate deal with the Chinese city of Guangzhou, Guangdong province, for a $4 billion, 8th-generation panel plant. [nSEO152959]

Most companies have so far kept only back-end assembly lines in China to protect their advanced technologies, but growth prospects for the Chinese market now outweigh caution over intellectual property. (Reporting by Miyoung Kim; Editing by Jacqueline Wong)

It can be really frustrating to find several fingerprints on the display of your smartphone. Unfortunately, most smartphones today do not support fingerprint resistance. Thus, there is a continuous need to always wipe our smartphone screens to make them look cleaner. While many people are comfortable with a simple wipe using any clean cloth, some are not. Some users believe that they need some sort of disinfectant to make the smartphone screen clean. During the pandemic, various alcohol-containing disinfectants and cleaners have become common household items. We hold mobile phones in our hands every day and they can easily get contaminated with various pathogens. Since various alcohol-containing cleaners can not only clean oil stains but can also kill germs, wouldn’t it be appropriate to use them to wipe the smartphone screen? Well, don’t be too sure about how appropriate alcohol is for cleaning a smartphone screen.

While you may be tempted to use alcohol-based disinfectant to wipe your smartphone screen, please don’t. This is because if you do it incorrectly, it is likely to damage your phone or other electronic devices. Because using alcohol to wipe the smartphone screen is likely to cause irreversible serious damage to the screen. This is particularly true for LCD screens. So, why does alcohol have a strong erosive effect on LCD screens?

The liquid crystal screen is composed of multi-layer materials and its core is a sandwich structure with a layer of liquid crystal molecules sandwiched between two polarizers. Both the polarizer and the liquid crystal molecules themselves are very soluble in alcohol. Once corroded by alcohol, they will dissolve immediately and the screen will become mottled.

However, modern LCD screens, especially various touch screens, are not so fragile. Because we will also set a glass cover on the top layer of the screen, this cover mainly prevents scratches from damaging the screen. Furthermore, this later can naturally block various moisture and solvents from the outside from directly interacting with the structure below. But even so, wiping the screen with alcohol-based cleaners is a dangerous practice for two main reasons.

First, the surface of the glass cover is actually coated with a special organic film, such as an oleophobic film. This can reduce oil adsorption and ease fingerprints from dirtying the screen. Most of these coatings contain various organic compounds, and their resistance to alcohol is very weak. If they are wiped with alcohol from externally, the coatings are more likely to fall off. This will cause the display to become blurry. Of course, if the screen of the mobile phone is covered with film, then there is no need to worry too much about this problem.

Second, although the top layer of the LCD screen, that is, its surface is not so squeamish, its sides are still very fragile. Most of the LCD screens damaged by alcohol are actually because the alcohol penetrated into the gaps on the side of the screen. This means that as the user wipes with alcohol, the alcohol, finds its way into the sides of the display. It manoeuvres from the glass panel and drills directly into the lower structure. The surface tension of alcohol is weak and the capillary effect is strong. Once it finds its way into the side of the display, it will quickly penetrate into it. As we will all expect, the consequences are naturally very irritating.

If somehow, a small amount of alcohol enters the inside of the screen, you can immediately turn off the device to dry naturally. Alternatively, you can use a hairdryer to dry it carefully and this will not affect subsequent use.

From time to time, there is usually a need to clean the display of our smartphones. We also need to clean the screen of our tablet or computer. When we have such a need, all we have to do is spray some special LCD screen cleaner and wipe it with a soft cloth. This will make the screen clean and appear brand new. The LCD screen cleaner has a very good removal effect on fingerprints and oil films, and many wet wipes also have similar functions.

The active ingredients contained in these cleaning products are mainly surfactants. They have a good cleaning effect on oil stains and will not damage various organic coatings. If there is no similar cleaning agent, the LCD screen can also be cleaned with a damp cloth dipped in a very small amount of pure water. However, be very careful not to let water flow into the gaps around the screen.

To sum up, if it is just for cleaning, it is not safe to use alcohol. If there is a need for disinfection, then you should be cautious. Some mobile phone products will be sterilized with alcohol. It is recommended to read the instructions before disinfection. In addition, when disinfecting a mobile phone with alcohol, it is also recommended to first dip the alcohol on a soft cloth, and then gently wipe it with the soft cloth. Do not spray or pour alcohol directly on the screen, so as to prevent the alcohol from flowing everywhere and increase the risk of eroding the original screen and damaging the mobile phone.

There are multiple types of LCD screen cleaners that users can purchase off the shelf. If you feel that a simple cloth wipe is not enough, then try and purchase any of the LCD screen wipes on the market. As much as you can, try to avoid the use of alcohol or alcohol-based disinfectant to clean your smartphone. The adverse effect of this could be worth much more than the need to clean or disinfect the device.

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.