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Protective glass. What and why?

The main purpose of protective glass is to protect the smartphone screen and reduce the likelihood of damage. A good safety glass is a multi-layer design that includes a polymer that resists scratches and light impacts, and a thin layer of real tempered glass. Nillkin and DiGi protective glasses use a high-quality layer of Japanese tempered glass Asahi Glass.

A layer of tempered glass allows you to redistribute the impact impulse in case of a strong fall. It is the presence of this component that explains the “cobweb” when the protective glass breaks.
Whether to use protective glass or not is up to everyone to decide.

But, given the cost of replacing the display and the difficulty of finding original spare parts (in the case of the iPhone), purchasing a protective glass becomes one of the very first steps to protect your smartphone.

What is a 2.5D screen?

Smartphones with slightly convex screens have been appearing for a long time, although it still seems like it was just a couple of years ago.

This effect is achieved by rounding the edges of a flat "2D" display in the Z axis. This effect can be more or less extreme, depending on how much curved edges are required. Even a slight curve can be used to make the edges of the glass feel smoother, while a larger curve will make the device look more stylish.

2.5D glass is produced in much the same way as flat glass panels, only with additional shaping when it comes to cutting the glass to the desired size.

The advantages of 2.5D glass are purely ergonomic and aesthetic.

2.5D screen and protective glass.

The 2.5D screen is beautiful, convenient and stylish. But, unfortunately, it does not add strength to the smartphone display and does not eliminate the need to use protective glass.

Unfortunately, a number of difficulties arise here.

The specificity of the rounded edges does not make it possible to make protective glass over the entire display and leaves the edge unprotected.

For many display manufacturers, physical rounding begins on the visible part of the display. And although it is not visible, it is precisely this that does not allow the protective glass to be properly glued.

As a result, if you glue protective glass onto such a display, the edges of the glass will hang in the air and will not stick.

This specificity is not a defect, which must be communicated to the end buyer before gluing the glass!

Options for solving the problem

There are only 4 basic solutions to the problem of gluing glass to a 2.5D screen:

1. Many manufacturers make protective glass in smaller sizes.
The advantage is that this glass is completely adjacent to the screen.
A noticeable disadvantage is that the glass does not cover the entire visible area of ​​the display.

2. The second solution is also very popular and can often be found in high-quality glass. The glass is made to the largest possible size, down to the perceptible rounding area. The main advantage is that the glass completely covers the display. It is easy to use and when the screen is on, the area that is not taped is practically invisible. The downside is that the edges of the glass are not glued and this effect is noticeable when the screen is turned off.

3. Full Cover and Full Cover 3D protective glasses are made for Apple iPhone, which have painted frames around the display. The glass is glued to the entire screen. The protective frame perfectly follows the shape of the smartphone and completely protects the screen.
In the South-Contract catalog this type is represented by the following models:
DIGI Glass Screen (3D Silicone Edge) for iPhone 6/6s,
DIGI Glass Screen (Full Cover) for iPhone 7 and 7 Plus,
NILLKIN Glass Screen (AP+) for iPhone 6/6s and 6/6s Plus, iPhone 7 and 7 Plus.

4. Unfortunately, protective glass manufacturers produce this type of glass only for iPhone. For many popular positions on Android, there is Full Cover glass, but made using a different technology. Externally, it is very similar to Full Cover for iPhone, but there is no adhesive layer on the visible part of the display.

The glass is glued only along the perimeter and is held along the edge. This negatively affects the touch responsiveness of the display. In addition, the glass peels off very easily and dust gets under it. Due to the specifics of the design and the large percentage of negative reviews from end users, this type of glass is not included in the Yug-Kontrakt product range.

Replacing your screen protector can be a simple matter if you follow a few guidelines and use the right tools, otherwise you'll end up with an uneven finish with blisters.

First you need to carefully remove the old glass. It is important to remember here that the glass is attached to the screen not with glue, but due to static. And all attempts to tamper with it in any way will end in scratches on the case and display.

A special suction cup can be either a helper or your nightmare. If you use Velcro incorrectly, you can damage the sensor, cables and screen module. You need to act smoothly and carefully.

To install glass you need to prepare:

• plastic card or mediator - it’s better to take 2 pieces;
• a silicone suction cup (if you replaced the glass, you can do without it);
• napkin or lint-free cloth;
• alcohol glass cleaner;
• rubber medical gloves.

If all of the above is present, replacing the protective glass will not take much time.

Step by step work

Before work, you need to make sure that there is no dust, lint or hair on your fingers, or it is better to just wear thin gloves.

Then install a special suction cup on the part of the screen that is less damaged. It needs to be pressed down and glued to the corner of the screen. Taking a plastic card or a pick, begin to gradually pull the Velcro towards you, this must be done smoothly and gradually increasing force. Once the glass starts to separate, use a card to peel it off. When most of the glass has separated, you can quickly tear it off.

How to glue protective glass on your phone

Gluing new glass

Before gluing the new glass, make sure that there are no fingerprints or dust left on the screen. To do this, wipe the screen with a napkin and alcohol solution.

Further actions:

• Use gloved hands to grasp the edges of the protective glass.
• The protective film must be removed as close to the screen as possible so that dust does not stick to the glass.
• Try on the protective glass over the screen so that all the cutouts are in place.
• Slowly lower the glass onto the screen, pressing and simultaneously smoothing from the center to the corners. A napkin or plastic card will help you here.

If dust or lint does get in, peel off the glass to the “dirty” area, blow out the excess or remove it with tweezers and glue the glass in place.

Such simple manipulations will help you glue the protective coating yourself.

Source

How to stick glass on a smartphone?

Every smartphone owner understands that the screen is the weakest point in the phone. It is with the screen that problems most often occur. If the phone is dropped, the chance of the screen breaking or cracking is close to 100%. And any phone falls sooner or later, since this is the thing that a person uses constantly, one might say - from morning to evening.

Read also: How to stick the film on your smartphone yourself

To protect the screen of your favorite smartphone, smart people came up with protective glass. It is sold in any salon or store where you can buy a smartphone, and costs around 10-20 dollars.

How to properly stick protective glass on your phone

It is much cheaper to order protective glass in China.

You can stick it on with your own hands, right at home, for which you must strictly follow the instructions from the manufacturer. In general, sticking protective or bulletproof glass on yourself for the first time is not as difficult as it might seem at first. Properly applied protection to the screen will protect your phone from many troubles.

How to stick bubble-free glass on your smartphone yourself

To properly stick the second glass onto the screen, you need to follow a few simple rules:

1. The screen must be wiped with a special cloth, removing fingerprints, grease and other traces.
2. Using a stream of air, before sticking, (you can use a medical blower) blow off all the dust.
3. Degrease the screen with a special liquid, which manufacturers usually put in a box with tempered, armored or other protective glass. Bubbles under the glass are the result of poor cleaning.
4. Glue the second glass with your own hands so that there is no dirt, dust, or air bubbles under it.

To glue shockproof glass onto your smartphone yourself, you will also need scissors and tape, which will make the work process easier.

We take the purchased glass and look at which side it has a sticker on. By pulling this sticker, we remove the protection. But you don’t need to remove it right away, as there is a way to make the process of even gluing easier. For this we need tape.

We cut off three small pieces of tape, apply the glass to the phone, and on one side glue the glass to the back surface of the phone. The glass will be fixed with tape on one side so that it can be opened like a door. And the tape plays the role of loops. This makes it much easier to stick the glass evenly.

We apply the protective glass and see if it lies evenly. If it fits, it should follow the shape of the screen.

If everything is smooth, pull the sticker and remove the protection. If the protection cannot be removed, then you can use a thin sheet of paper or your fingernails to pry up the protection and release the applied glass. Once again we wipe the screen and close our book from the phone and shockproof glass. Lightly press your finger into the center and admire how the second glass sticks to the screen on its own without bubbles. If air bubbles appear underneath (which should not ideally be the case), use a soft cloth to push it to the edges and get rid of them. You can glue glass perfectly only if you act carefully and slowly.

Remove the tape and clean off the glue. The gluing or glass replacement is complete.

How to re-glue a cracked plate glass to a new one

Replacing glass if it is cracked begins with removing the old protective glass. How to remove it? Very simple. You will need a sheet of paper or plastic, preferably thinner. We are trying to drive it out of the corner under the old protective glass (any kind, even 3D, even regular armored glass). As soon as you succeed, you need to try to lift the glass up. Do not press too hard, otherwise you may simply break off a corner instead of replacing it - the glass, if already cracked, will be extremely unreliable.

The old glass has been removed and the screen needs to be cleaned again before attaching the new one. Next, gluing the tempered glass will proceed as we described above. It is better to carefully glue the glass right away than to re-glue it, so be careful.

How to stick protective glass on a smartphone at home if the size doesn’t fit

If you ordered a second glass from China, there is a high probability that it will not fit. If it is a little smaller than necessary - no big deal, in principle - it will perform its function. If the glass is a little larger, it is worse, since there is a risk of it peeling off at the most inopportune moment. And it’s inconvenient to use a smartphone with a protruding screen, so in this case it’s better to replace the glass and re-stick another one. You can remove old or broken glass yourself.

What kind of glass are there that can be glued to a smartphone?

1. 3d - this protective glass not only protects the screen, but also makes it more attractive by rounding the corners. You can stick it yourself or in the salon.
2. Bulletproof glass is quite durable and protects the screen from cracks when falling even on stones and tiles. Many manufacturers produce just such glass. It is better to buy and stick such glass right away, especially if you often drop your phone.
3. Tempered glass (or tempered glass) is highly durable and protects the screen from breaking.
4. Shockproof is suitable for those who often drop their phone or have the habit of throwing it on the table. It is as easy to stick as other types.
5. Liquid - applied as a spray, provides oleophobic, hydrophobic and antibacterial coating. Saves from small cracks. Can be reapplied.

The first four types refer to invoices and have many similarities. Before you buy an overlay glass, you need to know the exact dimensions of your smartphone screen. Liquid protection is suitable for any device. Even if you handle your phone carefully, it is better to stick glass with an additional oleophobic coating.

What to do if the glass glued to your smartphone comes off

If additional glass recently glued to a smartphone comes off, it means it was most likely defective. This happens if you bought it from a Chinese manufacturer. There is nothing you can do here, so all you have to do is get rid of the low-quality product and buy new glass.

If the reason is not the additional glass, then you can try to clean the screen again - after all, the second protection will be ideal only if the grease, dust and dirt are completely removed from the smartphone.

Important: The Glass (Gorilla) screen, which is considered extremely durable, also needs additional protection. Therefore, even for such smartphones it is important to choose glass. In addition, you can choose a rear glass to protect the body.

“Protective glass for a phone: how to glue it?” - a similar question interests a considerable number of users. Firstly, let us immediately note that the process of installing protective glass for a smartphone has some subtleties, but overall it does not seem to be anything overly complicated. Even if you have never done this before, you can achieve the same result as you would get in service centers or in cellular communication stores, with the only difference being that the installation of protective glass in the above-mentioned companies is a paid service. All that is required from the user himself is a set of tools and a little attention.

Protective glass for your phone: how to glue it

Many users who are faced with the need to carry out such an operation do not even suspect that not only the correct sequence of actions plays an important role here, but also a well-prepared workplace. If there is a mess on the table, and materials and tools are scattered, it will be more difficult to achieve a good result. The more quickly you can use one or another element, the better the gluing will be. Therefore, make sure in advance that all unnecessary components are removed from the workplace or at least moved outside the operation. So, here we have it on the phone. We'll tell you how to stick it a little lower, but for now let's talk about what it is and how it differs from film.

Differences between glass and film

Users usually clearly understand which of these materials they are talking about. However, some people do not understand the basic differences between film and safety glass. Let's talk about this in more detail. The second material better withstands mechanical loads. If you drop such material, only the glass will be damaged. It can be replaced later. But if an ordinary film was glued to the device, then everything is much more serious. This may require a complete screen replacement. And it will cost an order of magnitude more. For the sake of fairness, we note that glass is not afraid of sharp objects. You can run keys, a knife, scissors across it - anything. But it will not receive any damage. This, unfortunately, cannot be said about the film. Finally, I would like to note that gluing glass is much easier. Well, now let’s move on to consider the question of how to install protective glass on a phone in more detail.

Preparing the screen

Before installing the protective glass on your phone, you should carefully prepare the display surface for this operation. The process will consist of several basic steps. If you have previously applied it to the screen, you need to remove it by pulling the edge. We will no longer need the film in the future, and it can be thrown into the trash. We open the kit with protective glass. It should contain a cloth made of microfiber. We will need it later. If the package does not include an alcohol-preserved rag, then you can wet the wet disk with it, after which you should wipe the screen. You can wait until the display is dry and then use a microfiber cloth as intended. Before starting such work, it is recommended to wash your hands with soap to avoid the appearance of greasy stains on the screen. Once the screen is clear, you can move on to the next step. So, we continue to answer the user’s question about how to use it protectively.

Installation

When you pick up the protective glass for your phone, you will see that it is covered on one side with a special layer of film. This is the adhesive side with which the element will need to be applied directly to the screen of the device. Now we remove the film, preparing the glass for the gluing process. In this case, you should hold it not by the surface, but by the edges, in order to avoid loss of properties. When you align the glass, press it against the screen itself. The coating of the first one is made in such a way that nothing additional needs to be done, it glues itself.

We complete the operation and remove the air

Once you install the screen protector on your phone, you will notice that there are small bubbles underneath. This is the air remaining inside. You can remove it quite simply. To do this, smooth the glass from the center in the direction of the bubbles. Thus, they can be “squeezed” abroad. In the end, you will get an element that sits perfectly on the surface of the screen. Some users ask the question of how much protective glass for a phone costs. Note that the price for it falls in the range from 300 to a thousand rubles, depending on the brand and quality, as well as on the phone model. Now, after reading this article, you know the answer to the question of how to apply protective glass to your phone, how to glue it correctly.

Which protective glass to choose

Currently, a considerable number of companies are engaged in the production of such accessories. Nevertheless, protective glass from Ainy is rightfully considered the best of them. Why? What is the best protective glass for your phone? The products of this company have proven themselves well in numerous tests. Experts especially closely monitored the behavior of glass installed on devices of the American company Apple. It was found that with a relatively small thickness, the accessories provide excellent protection of the screen from external mechanical influences. It should be noted that the glasses of this company are made of five layers, the final one being oleophobic.

Func, for example, produces similar products. Its products are in approximately the same price category. It was noted that many accessories are hardened, but the quality and level of protection do not match the elements from Ainy, which, in principle, was confirmed by endurance tests.

The Samsung i9190 Galaxy s4 mini was chosen as the “experimental” phone. The glass of the device was cracked, which has not yet been replaced. To protect the screen from dust and moisture getting inside, as well as from further cracking, it was decided to temporarily stick a protective glass on the phone.

Glass has a number of advantages over film:

• the ability to protect the glass of the device from cracking when dropped with the display facing down;
• scratch resistance;
• ease of gluing;
• excellent fixation with the screen;
• aesthetic appearance.

Preparation of the workplace.

In order to save money, glass was ordered from one of the Chinese sites. It came with two napkins in individual packages:

1. wet, with cleaning and degreasing impregnation;

2. dry non-woven.

If such wipes are not included in the kit, they can be replaced with a regular alcohol wipe (or a cotton pad soaked in vodka or alcohol) and a microfiber cloth. You may also need clear tape to remove tiny fibers from the screen.

The work area should be firm (such as a kitchen table) and well lit. Otherwise, dust and stains may go unnoticed when gluing glass.

Preparing the phone glass

1. Wash your hands to avoid accidentally leaving greasy fingerprints on the glass and phone.

2. If there is a protective film on the phone, remove it.

3. Take an alcohol wipe (in our case, it’s the wipe from bag No. 1) and wipe the entire phone screen centimeter by centimeter, without missing a single spot.

4. Take a microfiber cloth (we used a tiny cloth from package #2) and wipe the glass dry.

5. Look at the phone in the light to see if there are any untreated areas, dust particles or lint left on it. If any are noticed, they can be removed using the sticky side of ordinary transparent tape, followed by microfiber treatment.

Glass gluing

• The glass has a protective film on one side, which must be removed by pulling the tab before gluing. The glass must be held by the sides at all times to avoid leaving marks on it.
• Having freed from the film, this side of the glass needs to be brought to the phone screen, aligning it as much as possible with the edges of the display, buttons and speaker.
• After making sure that all the guidelines are met and the glass is aligned with the edges, lower it onto the screen. The silicone coating of the protection promotes self-adhesive glass.
• If you find any air pockets under the glass, remove them with a napkin by smoothing them through the adhesive protection.

To protect the screen of your favorite smartphone from damage and keep the display in its original condition for as long as possible, you have to choose between film and protective glass. However, the film may not withstand accidental impacts or drops. Glass is many times stronger than film and can prevent cracks, chips and scratches on the screen, keeping the display even and smooth. How to choose and glue protective glass to your phone?

Why do you need a protective glass for your smartphone?

Protective glass for a smartphone is the simplest glass, processed using special temperature technology, and has several layers. First, it is heated to 680°, then gradually cooled, due to this, stability and mechanical strength increase, hence the name - tempered glass.

Its thickness exceeds the usual film by 0.2-0.5 mm, the presence of glass does not affect the appearance of the device in any way, often it is not even visible, but at the same time the protection becomes many times greater and the screen is not afraid of falls, keys in the pocket and other things that leave a lot of damage. scratches and abrasions.

The cost of glass depends on the manufacturer and model of the smartphone for which it is made. The price is significantly higher than for film due to its greater strength. Also, unlike film, glass has 100% transparency, is much easier to glue and more pleasant to the touch.

Consists of 5 layers:

• the layer that fixes the glass on the screen is called silicone;

• restraining - prevents screen fragments from scattering in case of serious damage to the display;

• anti-glare – allows you to keep colors bright and colorful, the screen does not fade, transparency is maintained;

• protective - responsible for protecting the display from damage, layer hardness 9 H;

• a layer that repels moisture and does not leave greasy fingerprints is called oleophobic.

Safety glass functions:

• Protects your smartphone screen; reduces the intensity of the blow, takes it upon himself.

• Oleophobic coating makes fingerprints less noticeable.

• Resistant to abrasions, scratches and damage.

• Maintains display sensitivity.

• Reliable fastening and durability, thanks to the high level of density.

Selecting protective glass

The market offers a large selection of safety glasses. They are:

• different thicknesses - 0.26, 0.33, 0.5 mm;

• different coatings - glossy (often cheaper than matte, do not distort the image) and frosted glass (eliminates glare on the screen);

• with different edges - 3D (curved glass that covers the display, repeating its curve), 2D (cut to the shape of the front panel of the smartphone; the glass does not undergo careful processing of the edges, since the glass is often covered with a side edging or recessed deep into the body, for the owner the thickness of the glass remains unnoticeable), 2.5D (the golden mean between the above glass forms; this flat coating with rounded edges gives volume, solidity and high cost to the appearance of the smartphone; the sides are smoothly rounded, flowing into the body).

To choose the most suitable glass option for use, you need to select it in accordance with the smartphone model; choose between glossy and matte finishes, declared strength (glass should not bend much) and compare price and quality. The thicker the glass, the higher its strength.

How to glue protective glass to your phone at home?

To properly stick a protective glass on a smartphone, you need to be careful, have a prepared work area and good lighting. The procedure is as follows:

1. Thoroughly wipe the display from grease, dust, fingerprints and other contaminants using wet and dry wipes (the latter are included with the glass); if you have alcohol wipes, it is better to wipe them with them. Careful processing is necessary to avoid streaks under the glass.

2. Use glass only at the edges, otherwise there will be fingerprints. Remove all dust particles from the display (you can glue it in the bathroom, turn on hot water, steam will remove the dust). There is a film on the glass that needs to be removed - this is the adhesive side.

3. It is necessary to adjust the glass along the edges, to the speaker, to the buttons (if any). Slowly lower onto the display. The glass will stick itself; if air bubbles appear under the glass during the process, then lightly pressing on the center of the glass, gradually shift the air to the edge, squeezing it out. You need to press gently and as carefully as possible so as not to displace the already established position of the glass on the display.

If you can’t stick the protective glass onto your phone evenly the first time, it’s okay: the glass can be peeled off and straightened, and if dust or debris has clogged up under the edge, they can also be easily removed, you need to bend the edge of the glass and wipe it clean.

Unlike film, glass does not need to be smoothed; it adheres quite quickly and easily, the main thing is to follow the instructions. Glass also has a fairly long service life; if used carefully, it can last up to several years.

Video on how to stick protective glass on your phone

Is it possible to re-glue the protective glass?

If after some time the glass begins to peel off, but it is in good condition and the owner is satisfied with its appearance and protective properties, the protective glass can be re-glued to the phone.

You need to purchase formic alcohol, it is very cheap and is sold at any pharmacy. You need to wipe the adhesive side with a clean cloth soaked in this liquid and re-stick the glass on the display in accordance with the speaker and control elements. Drive out the air and remaining liquid by lightly pressing from the center to the edge. If you can’t remove small bubbles, then don’t worry – after a day they will disappear on their own.

You don’t have to look for a person who often sticks glass and does it for money; you can stick a protective coating on your smartphone yourself at home. You just need to follow the instructions and be careful. We must remember that the screen is the most vulnerable area of ​​a smartphone and additional display protection is a must for your favorite device. The advantages of protective glass are obvious: the smartphone can be carried in a pocket or bag, and the likelihood of cracks on the screen after an accidental fall is minimized.