how to glue lcd screen free sample

LOCA or Liquid Optically Clear Adhesive is kind of special UV glue or sealant used to bond display / LCD Screen and touch screen panels. It is also called UV Glue. Most technicians prefer to use LOCA Glue or UV Glue over other glue or sealants because it improves contrast by many times. It also prevents loss of light from the display and hence increases the life of Mobile Phone Battery.

In order to replace a faulty, broken or damaged glass / touch panel (PDA) of LCD Screen of a mobile phone or smartphone, you will need following Mobile Phone Repairing Tools:

Separating the glass from the LCD should be done very carefully to avoid any unwanted damage. Special care must be undertaken if the glass is cracked. Never try to take off the glass without the right tools and equipment. It can damage the LCD which can be very costly to replace.

The glass and LCD are strongly bonded together with LOCA glue. The glue must be heated to loosen the bond. It can be done using a Hot Air Gun / Heat Gun. Technicians with some practice can easily do it. However, in most authorized service centers and professional service centers, they use LCD separator machine.

Use a Hot Air Gun or LCD Separator Machine, to give heat to the LCD to Loosen the bond of the LOCA glue. In both cases, a temperature of 200-300 Degree C is OK.

Gradually and evenly heat the front side of the phone. Use the Infrared Thermometer to check the temperature before trying to remove the glass. Make sure there is neither too much heat nor too little heat. Too much heat will burn the LCD screen while too little heat might crack it.

Start removing the glass from the top of the screen where speaker is located. Use the metal spudger to carefully separate the glass from the LCD screen. Move the spudger along the top edge and make enough space for the putty knife to slip in.

Reheat the surface and using the putty knife, carefully pry the glass away. After removing the Glass, use the Goof Off  or Hot Blade to remove existing melted LOCA glue and clean the LCD screen using lint-free wipes. Some service centers and technicians also use automated LOCA removing machine.

LOCA glue is available in the form of liquid. It is not as thick as other adhesives. Apply just enough glue on to the screen in a “X” pattern with a “-” in the middle of “X”. Make sure not to apply too much or too little glue and see that there is no air bubble.

The adhesive will gradually spread across the screen and to the edges on its own without you having to apply any pressure. If there is any bubble, apply gentle pressure on the LCD and guide the bubble to the edge.

LOCA Glue do not cure or dry on its own. You have to dry it using UV light. Always Use a branded UV light that is about 30 to 40 Watts. You can also use a UV nail dryer. But do not use Flashlight UV lights.

Curing or Drying time of the Glue is generally 1 to 2 minutes. It also depends on the Wattage of the UV light source and the distance between the UV light source and the LCD Screen or Glass.

This article was co-authored by Linh Le and by wikiHow staff writer, Nicole Levine, MFA. Linh Le is a Certified Mobile Repair Specialist and the Owner of SC Mobile Repairs in San Clemente, California. With more than 12 years of experience, he specializes in smartphone, tablet, and smartwatch hardware repair. Linh has an iTech Mobile Device Repair Certification and an iOS Certification. He holds a Bachelor’s degree from The Franciscan University of Steubenville.

We Are A Well-known Manufacturer That Specialized in All Kinds of Development or Production of Various LCD Refurbishing Machines(Jiutu Brand). From Jiutu You Will Not Only Get All the Newest LCD Refurbishing Machines, But Also Professional After-Sale Services and Permanent Technical Support. Our Machines Fit For All LCD Screens Under 7 inch, including for iPone6G6Plus 6S and 6S Plus ,Sasung S5, S6, Note 4, Note 5, S6 Edge, S7 Edge Etc. So Do Large Tablets Screens.

We Warmly Welcome New and Old Customers From All Walks of Life to Contact us for Future Business Relationships and Achieve Mutual Success! Other Then This, We Are Looking for Wholesaler and Distributors for Our Machines And Parts From All Over The World. If You Are Interested, Warmly to Come and Join us. Thank You!

Generally, iPhone 6 LCD assemblies and frames are held together by PUR glue, which has two types HMG (Hot Melt Glue) and CPG (Cold Press Glue). OEM factories use CPG to assemble the screen and frame, which requires 15 seconds cooling time, 2-3 hours protecting time (Protecting time: time to keep the mold to hold the glued parts). It needs higher cost, longer working time and better equipment to produce and handle. While the assembled flex or refurbished iPhone 6 screen replacements are glued with HMG which the cooling time is 10 seconds and the protecting time is only around 6 seconds. It costs less, doesn’t require a strict working environment, has a shorter working time and results in weaker stickiness.HMG quality also varies by Low, Middle and High grades due to the different prices. Most third-party manufacturers use mid-grade glue for Apple products, however, it is not sticky enough to meet the higher requirements as the iPhone 6’s frame is thinner and the screen is bigger than previous models.

For assembled flex and refurbished iPhone screen assemblies with frames, both the frame and the front glass are high copies, and the frame is custom-made according to the size of the original front glass. After the molds of these two parts have been made, third party factories will constantly use them which means once the frame separation problems had occurred, many of the parts have already been sold in the market previously and currently.

We can see that the edge of the iPhone’s frame has been getting progressively thinner and thinner, thus the bonding area of the screen and frame is getting smaller. As we mentioned before not only is the problem with the mid-grade glue, but also with the machinery as well as the process that is used for previous iPhone models are not applicable any longer.

As you can see, there’re black areas on the bottom of 5/5C/5S and 6 frames. OEM factories will apply adhesive on that area, while many third-party factories won’t apply any adhesive to those areas in order to cut costs, which results in the glass separating from the frame.

The quality of high copy frames and front glass are not as good as OEM ones, the surface areas of these two high copy parts may not be smooth enough to ensure sufficient contact for the adhesive. This is also a reason why the frame tends to fall off.

The high copy frames used in assembled flex parts are not as strong as the OEM counterparts, and third-party factories have lengthened the height of the frame in order to increase the bonding area. The height of OEM iPhone 6 frames is 0.89 mm VS 1.18 mm for the high copy iPhone 6 frame.

The assembly work put into iPhone 6 screens and frames should be done in a dust-free room, but many third-party manufacturers are unable to meet this standard. Dust easily sticks to the glass unless these conditions are met, which will affect the quality of the glue.

Besides, there’s a varnish on the bottom of the iPhone 6 glass, if it is not sticky enough and coming off, the frame is guaranteed to come off as well.

Use this guide to correctly apply replacement adhesive under your iPhone"s display after a repair. Replacing the adhesive can help maintain your iPhone"s water resistance. The pre-cut adhesive strips are very delicate and are easily damaged if not applied correctly, so you may want to have a spare on hand if following this guide for the first time.

This procedure applies to all iPhone 6s, 6s Plus, 7, 7 Plus, 8, 8 Plus, X, XS, XS Max, and SE 2020 models. (Prior models did not use display adhesive.)

As mobile phone displays are much tougher than they used to be, it seems like they"re indestructible. Sadly, they"re not. Dropping your phone can often break the display. Your phone can no longer be considered useful.

Many services available online and locally will repair your mobile phone, for a price. But if you have access to the parts and they"re inexpensive, why not perform the procedure yourself?

You should also consider the non-monetary costs: time spent without a phone, data that needs archiving from the device. Hopefully your mobile platform"s cloud service can help here, or perhaps a desktop utility can check the phone"s contents.

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.

The most obvious location for a replacement display is eBay. Simply searching for the mobile phone model and the word display will turn up the required parts. Just remember to shop safely when using eBay.

In my case, "nexus 5 display" returned a wealth of accurate (and, sadly, slightly inaccurate) results. Take the time to check that the component you choose is genuinely for your device. Often, components may appear in the results thanks to a poorly written listing.

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.

Note that you may find listings that offer just the display, versus listings with half the phone"s chassis. Which one you buy depends on how complicated you want things to get. For example, just the display means melting the adhesive using a heatgun or hairdryer.

Alternatively, a replacement display kit that includes half the phone"s body will require components being transferred from the old body into the replacement.

These tools are included to remove the case and unscrew any components that obstruct replacing the display. For example, a mobile phone will have Torx screws under the battery cover that will need removing before you gently prize the case apart.

Note that spending money on these tools isn"t totally necessary. Sanding off the ends of a couple of plastic bicycle wheel levers will produce usable alternatives---otherwise, they can be sourced relatively cheaply.

There are so many different mobile phone models on the market (either new or used) that providing a standardized guide is next to impossible. Additionally, some models cannot be repaired without sending them back to the manufacturer.

To begin, remove (where possible) the rear cover, battery and identify where the Torx (or standard) screws might be hidden. Look under labels and beside USB ports. You might find screws in the battery cavity if you have a device with a removable cell.

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.

Persuading your phone"s display to part with the body isn"t usually difficult. Pushing through the camera hole against the glass to begin with, slowly prize the glass display away from the body.

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.

Narrow rolls of replacement adhesive can be bought online. Have some double-sided sticky tape laying around? Cut this into narrow 1 mm slivers, then apply the adhesive to the phone"s frame, rather than the glass.

Apply light pressure where the display meets the adhesive. Take care not to put pressure on the middle of the glass display. Excessive force can break even the strongest Gorilla glass.

Reconnect the relevant cables, locking them down where necessary. Place the components back in the case with care, checking that there are no cables or screws left over. Test the phone to check that it works.

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.

However, it isn"t always plain sailing. I"ve fitted a replacement display that caused the phone to overheat. Therefore, it is important to buy components from reputable sellers, and ensure you"re buying the right parts for your phone.

Most importantly, don"t walk into performing such a repair without some device-specific research first. Video guides are particularly useful; once you"re ready, get hold of the right tools and surprise yourself!

Here"s another tech problem you can solve yourself with a bit of time and effort: phone display flickering. And if you drop your phone into the water, don"t panic, follow these tips to help save it.

LOCA, used during the building of LCD displays, are the industry standards for assembling displays within certain size ranges and for particular end uses. They are commonly used in high-demand, mid-sized monitors in automotive and aerospace applications, among others.

Choice of proper curing mechanism -- UV curable adhesives are generally more reliable and less susceptible to bubble formation. Thermal curing materials can cause adhesive flow and air gap generation.

Automated dispensing process -- Manual dispensing, as noted above, is inconsistent and prone to mistakes and potential voids in coating. The use of automation is an obvious solution.

Autoclave or vacuum during bonding process -- The incorporation of an autoclave stage or introduction of optimized vacuum conditions will result in more consistent thickness, curing, and proper degassing of the adhesive when bonded.

Degassing step before dispensing -- Degassing before application remains one of the most effective and simple approaches and can often be enough to eliminate bubble issues on its own.

Chase Corporation, Westwood, Ma., founded in 1946, is a leading manufacturer of industrial products for high-reliability applications with a global customer base, operating in diverse market sectors. The Resin Designs division specializes in the manufacture of polymers for industrial uses, consumer coatings, and adhesives. Our outstanding manufacturing and technical support groups can provide your organization with a reliable global supply, unmatched quality, and superior technical support.

Select the top film and orient the film so that the arrow on the film label points to the side of the panel with the pins, then peel the protective film layer off the bottom film. This is the side with the sticker.

Peel the adhesive release film away from one edge and apply that edge of the film to the top of the panel panel and press it down with your finger. Gradually peel back the adhesive release film and use the card or roller to work the air out from under the film. If you see an air bubble form, gradually lift the film past the bubble and then reapply.

Use the razor blade to trim the film to the left and right sides and the bottom of the panel. If the film hangs over the top of the viewable area of the panel, that"s fine, but do not try to trim it from the top side, as the IC and conductive traces are easily damaged.

Remove the white backing from the factory graphics and align the bottom edge to the panel. Make sure that the graphics are evenly spaced on the polarizing film. There should be approx 1/32" gap between the bottom side of the panel and the start of the black border. There should be approx 1/32" gap between the left and right sides of the glass, and the black border of the graphics. Stick down the bottom edge of the graphics.

1. The product has excellent light transmittance and mechanical properties, and has stable viscosity. It has low adhesion and is easy to tear off and does not leave any residual glue after tearing up.

3. It is suitable for material transfer and panel protection, such as the panel surface of flat-panel display (glass, acrylic or PC material), CRT, touch screen, digital camera and PDA panel, and achieve the effect of protecting (screen) panel during use.

1. The product has excellent light transmittance and mechanical properties, is dimensionally stable, is easy to tear off, and does not leave any residual glue after tearing up

We are a manufacturer deals in Pe Protection Film, PET Film, CPP Film, PVC Film which has a good production team with experienced techniques and cities in China, as well as the quality raw material thus our products are competitive in the line of the market. Our protective film sells well among more than 20 provinces and cities in China, as well as in Europe, America, Japan, Korea, India, Thailang and other south-east Asia countries. Our products have been approved bu TUV, ROHS, several international famous companies are our long-term cooperation partners. We are keeping on improving and growing by the support and encouragement from all the customers. If you are interested in any of our product,please kindly connect us.We are looking forward to building the business relationship with you.

Cleaning.Clean iPhone immediately if it comes in contact with anything that may cause stains, or other damage—for example, dirt or sand, ink, makeup, soap, detergent, acids or acidic foods, or lotions. To clean:Disconnect all cables, then do one of the following to turn off iPhone:On an iPhone with Face ID: Simultaneously press and hold the side button and either volume button until the sliders appear, then drag the top slider.

Exposure to liquid and dust.If liquid splashes on iPhone or dust gets on it, wipe it off with a soft, lint-free cloth (for example, a lens cloth) and ensure that your iPhone is dry and free of dust before opening the SIM tray. Minimize exposing iPhone to soap, detergent, acids or acidic foods, and any liquids—for example, salt water, soapy water, pool water, perfume, insect repellent, lotion, sunscreen, oil, adhesive remover, hair dye, and solvents. If iPhone comes into contact with any of these substances, follow the instructions above in the Cleaning section.

Supported models are splash, water, and dust resistant and were tested under controlled laboratory conditions with a rating of either IP68 or IP67 under IEC standard 60529. Splash, water, and dust resistance are not permanent conditions and resistance might decrease as a result of normal wear. Liquid damage not covered under warranty. See the Apple Support article About splash, water, and dust resistance of iPhone 7 and later. To prevent liquid damage on iPhone, avoid the following:Swimming or bathing with iPhone

If your iPhone has been exposed to liquid, unplug all cables and do not charge your device until it’s completely dry. Using accessories or charging when wet may damage your iPhone. Allow at least 5 hours before charging or connecting a Lightning accessory.

To dry iPhone, tap it gently against your hand with the Lightning connector facing down to remove excess liquid. Leave the device in a dry area with sufficient airflow. Placing the device in front of a fan blowing cool air directly into the Lightning connector may help the drying process.

Using connectors, ports, and buttons.Never force a connector into a port or apply excessive pressure to a button, because this may cause damage that is not covered under the warranty. If the connector and port don’t join with reasonable ease, they probably don’t match. Check for obstructions and make sure that the connector matches the port and that you have positioned the connector correctly in relation to the port.

Lightning to USB Cable or USB-C to Lightning Cable.Discoloration of the Lightning connector after regular use is normal. Dirt, debris, and exposure to moisture may cause discoloration. If your Lightning cable or connector becomes warm during use or iPhone won’t charge or sync, disconnect it from your computer or power adapter and clean the Lightning connector with a soft, dry, lint-free cloth. Do not use liquids or cleaning products when cleaning the Lightning connector.

Certain usage patterns can contribute to the fraying or breaking of cables. The included cable, like any other metal wire or cable, is subject to becoming weak or brittle if repeatedly bent in the same spot. Aim for gentle curves instead of angles in the cable. Regularly inspect the cable and connector for any kinks, breaks, bends, or other damage. Should you find any such damage, discontinue use of the cable.

Operating temperature.iPhone is designed to work in ambient temperatures between 32° and 95° F (0° and 35° C) and stored in temperatures between -4° and 113° F (-20° and 45° C). iPhone can be damaged and battery life shortened if stored or operated outside of these temperature ranges. Avoid exposing iPhone to dramatic changes in temperature or humidity. When you’re using iPhone or charging the battery, it is normal for iPhone to get warm.

If the interior temperature of iPhone exceeds normal operating temperatures (for example, in a hot car or in direct sunlight for extended periods of time), you may experience the following as it attempts to regulate its temperature:iPhone stops charging.

Important:You may not be able to use iPhone while the temperature warning screen is displayed. If iPhone can’t regulate its internal temperature, it goes into deep sleep mode until it cools. Move iPhone to a cooler location out of direct sunlight and wait a few minutes before trying to use iPhone again.

Select “Start mesurement” and adjust your display’s color temperature and / or RGB gain controls to match the desired white point. A good match is obtained if all bars can be brought to the marked position in the center.

Turn on three phones with Other,OEM and Pro screens,Adjust all screens to maximum brightness,Obviously Us is much better than Other,both on brightness and color temperature.