lcd screen damage causes manufacturer

There’re more than 300 procedures to produce TFT LCD. The most advanced LCD, in which the array and cell process are highly automatic. Technically, every step in the process can lead to defects, and most of the defects have been eliminated through the development of TFT LCD technology.

Point defect is a kind of defect that some point on your screen don’t display correctly. There are mainly three situations: the point keeps displaying black or whitewhen the screen is working or the point can only display a single color.

For the first two situations, that’s because the circuit on the TFT and CF controlling that defective pixel point is shorted or broken. While the third situation is caused by damaged color pixel.

In LCD, newton’s rings may occur on screen when two glass substrate haven’t been sealed well, so that one of the glass may form a convex lens and lead to light interference.

You may notice there are some screens have uneven display, which means some white area appears in dark picture or vice versa. We call this ‘mura’, a word originated from Japanese.

Mura is very common but it doesn’t affect the screen function severely, however it still bring bad look. Hence, many high end display manufacturers have their own standards of mura, and the displays without mura are of the best quality.

Among the causes listed, thickness of the whole cell is the most critical one, and there are many factors related to that. Researches provide a lot of advice to adjust the thickness of the whole cell:

Issues with non-conforming performance, where the product no longer meets the performance specification, may be tied to a lack of quality of the components, LCD manufacturing, or in some rarer circumstance a change on the end-product that affected the LCD display.

Additionally there can be mechanical non-conformities, where there are aspects exceeding the defined tolerance as described in the specification. And in some instances, there may be variations not designated in the specification, but quite different from the original qualification units. These non-conformances are capable of affecting the fit, form, or function of the LCD display when assembled.

If your supplier has excessive component variability or possible process variability, there is the potential for a number of LCD display performance-related issues. These issues can be one-off or related to a larger batch of products manufactured together. Good serialization and traceability will help in isolating these occurrences and get to the root cause quickly.

While out-of-the-box nonconformance is typically the responsibility of the supplier, but it becomes a little more ambiguous when the non-conformance is not covered specifically by the governing specification. In this case, common sense and reasonable expectations of variation, the concept of the TEAM is considered. But at the end of the day, the LCD displays need to work in the finished product, and both parties should take the responsibility together to help get to the most efficient solution.

On the other hand, you need to be aware that performance degradation is sometimes caused by a change in another component upstream of the LCD display. Sometimes, a non-display component that is malfunctioning or is incompatible and interfaces with the display may cause the display to exhibit irregular behavior or render it inoperable altogether.

To verify this, swap displays to a fully functioning assembly and see whether the problem follows the display. If the issue does not reappear, the cause is likely a non-LCD display component.

The likelihood of damage, or the display being non-functional from the supplier’s end, is fairly low, as it is standard to test 300%, or three times throughout the process. Additionally, the final packaging itself is subject to drop testing during the initial development phase prior to mass production to ensure a damage-free trip despite your carrier’s best efforts to drop the packaging. That means the defect is likely latent or occurred during installation into the end-product.

This could be a manufacturing issue during the LCD display production or a quality issue with an upstream component that exposed a failure mode. In this case, fault may lie with the design itself, which indicates the need for a more robust design. Alternatively, a burn-in test process may be needed to expose potential defects prior to final inspection.

The final assembly process could also be a problem area. If the process is complicated, difficult to maneuver, or there are new operators involved there is a much higher probability of damage while assembling the LCD display into the end-product.

There is also the potential for misusing the product. A good example of this is using the product in an unintended environment such as extreme moisture. Impact is another unmistakable failure mode as it can manifest itself as a broken touch panel or cracked LCD glass.

Liquid crystal displays (LCDs) are the most widely used display technology. Their applications cover TV, mobile phone, appliances, automotive, smart home, industrial meters, consumer electronics, POS, marine, aerospace, military etc. LCD screen display problem can occur for several reasons.

Effect of environmental conditions on the LCD assembly. Environmental conditions include both the effects of temperature and humidity, and cyclic loading.

Effect of manufacturing process. With the development of LCD for more than 40 years and the modern manufacturing equipment, this kind if defects are getting rear.

Common failures seen in LCDs are a decrease in screen contrast, non-functioning pixels or the whole display, and broken glass. Different kinds of LCD display problem need to have different kinds of fix methods or make the decision not worthwhile to repair.

Broken glassIf you accidently drop the LCD and you find it broken on the surface but the display still works. You might just break the touch panel; you can find a repair house or find a youtube video to replace the touch panel. If you find the display not showing, especially you find the fluid leaking out. You need to reply the whole display modules.

Dim LCD displayLCD can’t emit light itself. It uses backlight. Normally, the backlight is not fully driven, you can increase the LED backlight to make a dim LCD display brighter. But if you LCD display has been used for a long time, it is possible that the LED backlight has to be the end of life (not brightness enough) if you turn on 100% backlight brightness. In that case to fix LCD screen, you have to find a way to change the backlight. For some display, it is an easy job but it can be difficult for other displays depending on the manufacturing process.

LCD has white screen – If a LCD has a white screen which means the backlight is good. Simply check your signal input sources which are the most causes. It can also be caused by the display totally damaged by ESD or excess heat, shock which make the LCD controller broken or the connection failure which has to be repaired by professionals.

Blur ImagesAs the LCD images are made of RGB pixels, the screen shouldn’t be blur like old CRT displays. If you do see blur images, they might be caused by two reasons. 1) LCD has certain response time, if you are playing games or watch fast action movies, some old LCD displays can have image delays. 2) The surface of the LCD is made of a layer of plastic film with maximum hardness of 3H. If you clean the surface often or use the wrong detergent or solvent which cause the surface damage. To fix damage on LED screen it’s need to be changed with professionals.

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.

— --A fire at an LCD monitor assembly plant in China ultimately damaged 14 production lines and caused an estimated US$71.27 million in damage, according to Lite-On IT, the Taiwanese owner of the factory.

A short circuit caused the fire at Lite-On"s Dongguan, China factory on February 3, but the company reported the cause and damages on Tuesday in a public release. The damaged lines are used to make LCD (liquid crystal display) computer monitors and LCD TVs and the fire damage will affect shipments.

Over the next two months, Lite-On, a major contract LCD monitor assembler, will only be able to partially fill orders to major customers. The company has been able to shift some production to other production lines, it said in the statement.

Analysts do not expect the supply disruption to affect global LCD monitor or LCD TV markets, but said it could cause headaches for some of Lite-On"s customers.

Yes, it happens. It was 2013 when I had a phone call from BenQ, a multinational manufacturer of LCD monitors. The project manager mentioned that one kind of LCD TV screen they were currently shipping damage. BenQ team looked for a solution from us to prevent broken TV monitors when shipped because defective products are not what any good business would want to do.

It was BenQ’s biggest embarrassment. They had a factory in mainland China and every time certain models of LCD screens were produced, they would be shipped to PChome Taiwan for sale. However, the recent damage rate of the goods had been abnormally high up to nearly 20%. Taking preventive measures, such as adjustment of packaging materials or structure, etc., there is no significant effect.

The situation became increasingly serious and it’s not just that it was BenQ who noticed this problem; customers’ feedback also showed that their LCD TVs were suffering from abnormal damages when delivered to them. Without any big accidents happening during the transportation or delivery process at all – one could only imagine what was going on inside those.

And now, with excessive losses and customers’ claims, BenQ had no idea how to do and kept seeking solutions from others, finally, they notice Impact Label through others’ introductions and heard that the label can reduce damage rates by 40-60%.

We had conducted a study on what type of shock can affect the LCD screen and how much damage it entails. We first put types of indicators labels in the box of the LCD panel in order to determine how much force damage would occur during regular shipment and transit.

According to the results of the test, the impact force on the cargo’s bottom is more than the acceleration of 50G, and this impact may damage the screen.

In addition, we observed that these impacts may cause a variety of different damages to screens: scratches on protective glass; or impairing light colors by undergoing color change from long-term use so that they become grayish black patches–which will affect a customer’s viewing experience.

Something wonderful happened. When the Impact Label indicator is in place, the damage rate of products was reduced to 0%. BenQ was enthusiastic and apprehensive, and would like to try a couple more batches.

After several weeks of discussion and debate, BenQ internally decided to adopt an impact monitor to decrease the risk of transportation damage, as the ratio of cargo damage reduced from 20% to 2%. In the next, all package is written “reminder before receipt” on outside the box. Customers can reject shipment if the Impact Label is RED upon arrival.

A study shows the damage rate typically drops by 50% or more when a monitor is in place. The TV screens are rarely damaged in this case, which proves the statement.

From customers’ point of view, the indicator label provides simple reminders of a concealed damage, and the time it takes to process the damaged product after purchase.

As for sellers, the Impact Label reduces the rate of damaged goods and makes business better. More importantly, the cost derived from customer complaints is lower and provides indisputable evidence of mishandling for freight claims.

Managing damage in the supply chain has many options, redesign the package is always the first impression comes to mind, however, it’s more expensive.

In fact, change the handling environment is the fastest and most effective way to solve damaged LCD TV screens, and where Impact Label comes to play! BenQ is not the first user of impact indicators in LCD TV manufacturers. To comply with your LCD TV, our free consultant and free samples for testing are waiting for you.

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!

LCD display screens on tablets are made of two thin layers of glass with dark liquid crystal material in between. The glass is covered on the outside by a layer of plastic. Customers often feel there cannot be a broken LCD display because they cannot feel the break. However, cracks in the glass usually cannot be felt because the plastic covering rarely breaks or fractures.

Black “spots” might also appear. This can be liquid crystal material spilling out of a crack. A crack might be present which causes lines to appear but no liquid crystal spots are apparent. The spots might be small or might appear later or grow larger in time. Customers often say that there were no black spot(s) when the unit was sent for repair, so it must have occurred during or after shipment.

It is important to understand that lines on the LCD can also be caused by video driver issues or a problem with the media you are using. Video driver issues can normally be resolved by downloading and installing a new video driver. However, if the damage is due to a broken LCD, you should understand the following policies.

Having a broken laptop screen can halt many tasks as laptops have now become a key part of our day-to-day life. On a broken laptop screen, you see different visual defects. That could be lines, colored pixels, or black patches. In many cases, you may even not see the screen turning on.

Laptop screens can be damaged due to various reasons; you might have dropped them somewhere; the laptop might have hit some hard surface or even a small sand particle in the screen can cause the damage.

Now, the question is how much does it cost to fix a broken laptop screen? Well, according to the nature of the damage, it differs. In this article, we are going to cover the estimated cost of fixing a laptop screen and see whether a laptop screen can be fixed at home or not.

First, find out if your laptop is under warranty or not. If it is, then go for it as it would not cost you anything if the screen damage fell under the terms and conditions of the warranty.

If the distortions on the screen are due to software or Windows bugs, then they can be fixed by using some quick tricks. Or if the connecting cable of the screen and motherboard has loosened then it can also be adjusted. It would hardly cost you anything except some tools and a bit of expertise.

This question has a complicated answer. On average if the laptop is repaired by a qualified technician, then it could cost around $300. Or if you are fixing it by yourself then you may need to buy a replacement screen online and that could cost $50-$100.

Laptops come with different screen sizes therefore each laptop has different screen specifications that include the type of screen (LCD/LED), size, and resolution. The cost also depends upon the manufacturer, a reputable manufacturer costs more than a normal manufacturer.

The cost of the laptop display varies depending upon the type: the cost of an LCD is less than LED. The estimated cost of an LCD screen is $50-$100, while the LED would cost around $200.

Windows laptops vary in size, there are a variety of laptops available in the market, so listing all the laptop screen size costs would be difficult. The Windows-based laptop screen size generally ranges from 11.6”-17”. The price of the screens would go from $40-$150.

Apple laptop screens cost more than normal Windows-based laptops. MacBooks don’t have huge size variations as they come only in 13, 15, and now 16 inches screen sizes. The screen costs of MacBooks are mentioned in the table below:

The laptop screen fixing price is also manufacturer dependent. Now, we will list some of the widely used laptop brands and their screen replacing and fixing costs:

Dell is one of the widely acknowledged Windows-based laptop brands that not only manufactures laptops for normal usage but also for gaming. The estimated cost of fixing a Dell laptop screen is $45-$80. The cost could go up to $150-$200 for higher-end models.

Lenovo ThinkPad is another popular laptop series. The price to repair or replace the screen on a Lenovo laptop is $60, while other models can cost as much as $350.

Toshiba is another manufacturer that makes laptops, though Toshiba is not as widely popular as other brands still, the repair cost of the Toshiba laptop screen is $60-$240.

Samsung is another well-reputed and reliable laptop manufacturer. Samsung is also famous for making top-notch LED displays. Most Samsung devices contain LED displays including laptops so, the cost would be a little bit higher. The repair cost of a Samsung laptop is $140-$200. Older models of Samsung laptops including Chromebook screens can cost $60-$80.

MacBooks are famous for their quality. Apple pays special attention to its laptop displays. MacBooks come with high-resolution displays also known as Retina Displays. The MacBook’s screen cost $250-$500, and including the repair cost makes it even more expensive.

Apple provides AppleCare service to fix the broken laptop and other technical issues. AppleCare charges $100 for the labor. So, approximately you need to spend a minimum of $450 (including display cost, labor and tax) to fix the MacBook’s screen.

If the laptop model is the latest, then going for the new model just because your screen is broken does not make sense. If the laptop model is old and it is hard to find the parts of it then opting for the new laptop is the best choice.

Well, nowadays many manufacturers are making touchscreen laptops. Touchscreens cost more than normal laptop screens. The average cost of a laptop touchscreen is $80-$150. The estimated cost to fix a touchscreen is $250-$350.

Replacing or even fixing a laptop screen is not an easy job. You need the required tools and proficiency to open the laptop and untie the connection and then put it back. It is recommended to go for a reliable repairer to fix the screen of the laptop as it is a complex process.

Well, in many cases the laptop is not physically damaged, but some software issue is causing the problem. In that situation removing the specific software or simply restarting the laptop can fix the problem. With time the laptop screen connecting cable also gets loose. Adjusting the cable can also fix the laptop screen issue.

The display is the most essential part of the laptop. The laptop becomes almost useless if the screen gets broken. As the screen is the sensitive part of the machine the chances of getting it broken are also high. But if for some reason your laptop screen gets broken then try to visit a certified repairer to replace the screen. Replacing the broken laptop screen needs expertise and care, so it is recommended to go for official repair service providers or some reliable third-party laptop technician.

You dropped your iPhone for the third time this week. Now you have to decide if you’re going to get your broken screen replaced at a local Apple repair service provider or if you’re going to start scrolling online to find the best options for a new or refurbished iPhone.

Let’s say you decide to have the screen on your old phone fixed up by a tech-savvy friend of yours so you can sell or exchange the old, beat-up iPhone 6 for a good deal on a new iPhone 13. Now you’re wondering, “Can Apple tell if I replaced my screen?”

Screen replacements come in a variety of different kinds, like LCD or OLED. Other types of smartphone screens include TFT and IPS. You may have heard of AMOLED or even Super AMOLED displays. Most of these touch screens are made by third-party manufacturers. All of these screens can function on an iPhone — and they’re cheaper than an original. So what’s the problem?

Apple says that all its screens are designed and tested for ‘Apple quality and performance standards.’ This is done before iPhones and iPads hit the shelves for the first time to ensure all Apple products have their proprietary technology like multi-touch, true tone, night shift, and haptic touch functioning properly.

While you may not understand all the jargon, this basically means that iPhone screens are immaculate in functionality — and we’re not even talking about the Pro versions here. There are many reasons why having an original iPhone screen is important, both as a buyer and as a seller. An original screen can go a long way in terms of performance, specifications, aesthetics, and exchange offers if you’re eventually looking to upgrade.

Getting your iPhone screen replaced by an authorized Apple service provider can be an expensive affair — but cheaper, aftermarket screens that aren’t from Apple often come with several issues.

To answer the question above: yes. Apple can tell if you’ve replaced your screen. As a matter of fact, you can check for yourself. In this guide, we’ll look at how you can check for genuine Apple iPhone screens, issues with non-genuine screens, and the difference between the two.

Most non-OEM parts come from third-party manufacturers who use cheaper materials to make their screens. The costs are lower upfront, but, you get what you pay for. It"s likely that you"ll have to keep replacing your screen at iPhone repair shops because third-party screens perform poorly and lack longevity.

Another quick way to check whether your iPhone screen is genuine is by shining a flashlight on it. You just want to shine the light directly on the iPhone’s screen.

Focus on the reflection of the light on the display. Fake screens tend to have grid lines on them, which will show up under a flashlight. These could be running across the screen horizontally, vertically, or both. The most common causes for this include software incompatibilities, hardware failure, or screen damage.

The last few iPhones to be released all have a maximum brightness level of around 1200 units. This means that iPhone screens get very bright and usually have best-in-class color accuracy.

You can use this to check if your iPhone’s screen is genuine. Simply bump the brightness slider up to maximum brightness, and open a solid black picture. You can head over to this website for a completely black screen.

Once you’re on this screen, zoom in and look at the display. If you have a genuine Retina OLED screen, it will look pitch black — as if you haven’t turned on your iPhone.

However, if the screen replacement process was non-genuine, you might have an LCD screen that isn’t from Apple. You can tell if you have a non-genuine screen if you notice color mismatch, specks, or marks of white or grey. Anything other than solid, fullscreen pitch black is not an original iPhone display.

Having a non-genuine screen on your phone can cause several issues. Not only this, but the chances of selling or exchanging your phone for maximum value will substantially decrease.

One of the most common issues with a non-genuine touch screen is multi-touch. Non-genuine screens will not be as prompt or accurate as genuine iPhone screens. Some of the signs of a non-genuine screen are:Missed screen touches or touches not registering in the intended area.

Another common issue with non-genuine iPhone screens is that there could be LCD display panels that aren’t from Apple. Original iPhone screens usually have Retina or Super Retina displays made from an OLED panel that is incredibly bright and color accurate.

If you notice the following issues with your screen’s display, you might have a non-genuine iPhone screen:iPhone"s true tone feature does not work properly (this is when your screen uses different sensors to adapt the screen"s color to the light sources around it).

Apart from the more common issues related to multi-touch and display brightness, you may experience the following issues with your iPhone if you have a faulty screen:Your iPhone does not turn on.

With some non-genuine iPhone screens, digitizers tend to malfunction, creating dead areas in the screen (usually the bottom) where your touch commands have no effect. A digitizer is a layer of glass that converts analog movements like your touch commands and gestures to digital signals that your iPhone can understand and interpret. The digitizer rests over the device"s LCD or OLED display.

While original iPhone screens may be slightly more expensive, they’re the screens that were initially manufactured specifically for Apple iPhones. You can slap a third-party screen on an iPhone, and it will work, but the performance will be nowhere near as seamless. Non-genuine LCD panels will have lower brightness levels and weaker contrast. The colors won’t pop and the screen will feel coarse to the touch.

As mentioned in the previous section, non-genuine screens have tons of issues when it comes to multi-touch, true tone, night shift, and other features that Apple meant to be enjoyed exclusively on an iPhone.

A non-genuine screen’s touch will be inaccurate, the iPhone won’t respond as well, the screen won’t be as smooth to the touch, the brightness will flicker on its own, the battery might deplete quicker, and you may experience a lag in day-to-day usage. With a genuine Apple-approved iPhone screen, you are far less likely to experience these issues.

A genuine iPhone screen is just as important on the day you buy it as it is when you decide to sell it. If you’re looking to sell your phone or hand it in to exchange for a new iPhone, the value of an iPhone with a genuine screen will always be far higher than an iPhone with a non-genuine screen.

Non-genuine screens will show up in your device’s parts and services history, and you’ll end up selling your iPhone for way less than it could have. There’s a good chance that you will pay for a screen a third time after your first non-genuine replacement fails to work properly. It’s best to get a genuine iPhone screen replaced with another genuine iPhone screen.

It’s likely you’ll have a more durable screen, better performances, and fewer problems in the long run until you decide to sell your phone for the best price available.

It’s clear that while a genuine iPhone screen may be more expensive than third-party replacement counterparts, the pros far outweigh the cons. Not only will you enjoy using your phone more, but you also won’t have to break the bank when you want to upgrade.

To find the app that causes issues, uninstall recently downloaded apps one by one. After you remove the app that causes the problem, you can reinstall the other apps you removed.

Slowly drag your finger to the bottom right corner without lifting. Try to move your finger slowly enough that you can count to 10 before reaching the opposite corner of the screen.

Yes, it happens. It was 2013 when I had a phone call from BenQ, a multinational manufacturer of LCD monitors. The project manager mentioned that one kind of LCD TV screen they were currently shipping damage. BenQ team looked for a solution from us to prevent broken TV monitors when shipped because defective products are not what any good business would want to do.

It was BenQ’s biggest embarrassment. They had a factory in mainland China and every time certain models of LCD screens were produced, they would be shipped to PChome Taiwan for sale. However, the recent damage rate of the goods had been abnormally high up to nearly 20%. Taking preventive measures, such as adjustment of packaging materials or structure, etc., there is no significant effect.

The situation became increasingly serious and it’s not just that it was BenQ who noticed this problem; customers’ feedback also showed that their LCD TVs were suffering from abnormal damages when delivered to them. Without any big accidents happening during the transportation or delivery process at all – one could only imagine what was going on inside those.

And now, with excessive losses and customers’ claims, BenQ had no idea how to do and kept seeking solutions from others, finally, they notice Impact Label through others’ introductions and heard that the label can reduce damage rates by 40-60%.

We had conducted a study on what type of shock can affect the LCD screen and how much damage it entails. We first put types of indicators labels in the box of the LCD panel in order to determine how much force damage would occur during regular shipment and transit.

According to the results of the test, the impact force on the cargo’s bottom is more than the acceleration of 50G, and this impact may damage the screen.

In addition, we observed that these impacts may cause a variety of different damages to screens: scratches on protective glass; or impairing light colors by undergoing color change from long-term use so that they become grayish black patches–which will affect a customer’s viewing experience.

Something wonderful happened. When the Impact Label indicator is in place, the damage rate of products was reduced to 0%. BenQ was enthusiastic and apprehensive, and would like to try a couple more batches.

After several weeks of discussion and debate, BenQ internally decided to adopt an impact monitor to decrease the risk of transportation damage, as the ratio of cargo damage reduced from 20% to 2%. In the next, all package is written “reminder before receipt” on outside the box. Customers can reject shipment if the Impact Label is RED upon arrival.

A study shows the damage rate typically drops by 50% or more when a monitor is in place. The TV screens are rarely damaged in this case, which proves the statement.

From customers’ point of view, the indicator label provides simple reminders of a concealed damage, and the time it takes to process the damaged product after purchase.

As for sellers, the Impact Label reduces the rate of damaged goods and makes business better. More importantly, the cost derived from customer complaints is lower and provides indisputable evidence of mishandling for freight claims.

Managing damage in the supply chain has many options, redesign the package is always the first impression comes to mind, however, it’s more expensive.

In fact, change the handling environment is the fastest and most effective way to solve damaged LCD TV screens, and where Impact Label comes to play! BenQ is not the first user of impact indicators in LCD TV manufacturers. To comply with your LCD TV, our free consultant and free samples for testing are waiting for you.

If the picture responds to input but displays a messy image, such as jumbled multicolored squares, the AV (audio visual) board may be damaged. This is usually a rectangular circuit board located near the audio and visual cables. Replace obviously damaged parts using a soldering iron, or order a replacement board and carefully install it to the same screws and ribbon cables.

Check input cables for damage, or try other cables of the same type. If necessary, inspect the circuit board they are attached to and re-solder damaged connections.

A defective pixel is a pixel on a liquid crystal display (LCD) that is not functioning properly. The ISO standard ISO 13406-2 distinguishes between three different types of defective pixels,

Similar defects can also occur in charge-coupled device (CCD) and CMOS image sensors in digital cameras. In these devices, defective pixels fail to sense light levels correctly, whereas defective pixels in LCDs fail to reproduce light levels correctly.

A tape automated bonding fault (TAB fault) is caused by a connection failure from the TAB that connects the transparent electrode layers to the video driver board of an LCD.

TAB is one of several methods employed in the LCD-manufacturing process to electrically connect hundreds of signal paths going to the rows and columns of electrodes in layer 6 (the transparent electrode layer) in the LCD to the video integrated circuits (ICs) on the driver board that drives these electrodes.

If an LCD is subjected to physical shock, this could cause one or more TAB connections to fail inside the display. This failure is often caused by horizontally flexing the chassis (e.g., while wall-mounting or transporting a display face up/down) or simple failure of the adhesive holding the TAB against the glass. TAB faults require the replacement of the LCD module itself. If these connections were to fail, the effect would be that an entire row or column of pixels would fail to activate. This causes a horizontal or vertical black line to appear on the display while the rest of the display would appear normal. The horizontal failure runs from edge to edge; the vertical failure runs from top-to-bottom.

In LCD manufacture, it is common for a display to be manufactured with several sub-pixel defects (each pixel is composed of three primary-colored sub-pixels). The number of faulty pixels tolerated before a screen is rejected, is dependent on the class that the manufacturer has given the display (although officially described by the ISO 13406-2 standard, not all manufacturers interpret this standard the same way, or follow it at all).

Some manufacturers have a zero-tolerance policy with regard to LCD screens, rejecting all units found to have any number of (sub-)pixel defects. Displays meeting this standard are deemed Class I. Other manufacturers reject displays according to the number of total defects, the number of defects in a given group (e.g., one dead pixel or three stuck sub-pixels in a five-by-five pixel area), or other criteria.

In some cases, a manufacturer sends all screens to sale then replaces the screen if the customer reports the unit as faulty and the defective pixels meet their minimum requirements for return.

I recently changed the screen on my iPhone with a 3rd party LCD screen as my old factory screen was severely cracked and displayed green all over. After I changed my screen with great care, I started encountering issues the same day where my phone would randomly turn off within minutes (and sometimes instantly) and wouldn’t turn on unless I plugged it in to charge, even though my battery was fully charged (for context, I replaced + calibrated my battery a week prior while using the original screen and encountered no problems).

I’ve noticed that sometimes, tapping it or setting it down will cause it to turn off. It will eventually turn itself off randomly, even if held in my hand or resting on a table, with the frequency increasing the more I turn it on and it dying until I leave it to rest. I double-checked all connections during the repair and tested the phone before reassembling to ensure everything works, with no issues. I had the battery unplugged while connecting the screen to ensure no discharge or damage. My first thought was the battery, but the battery is brand new and did not pose any symptoms or problems prior to me replacing the screen.

Why is this happening? I’ve heard some theories about components making direct contact with other parts of the phone’s internals which could cause problems. The screen I bought, while 3rd party and LCD, is from a reputable manufacturer (as far as 3rd party parts go), was bought brand new, and from a trustworthy seller. The screen is fully functional, so I’m less inclined to believe the screen is defective.