lcd screen leaking fluid manufacturer

Scientists have discovered that LCD screens leak chemicals into just about every environment where they are found, according to a new study, and these particles have the potential to be toxic over time.As described in a study published last week in Proceedings of the National Academy of Sciences, researchers collected dust samples from seven buildings in China: a cafeteria, student dorm, classroom, hotel, home, lab, and an electronics repair shop. Nearly half of the 53 samples tested positive for liquid crystal particles—which are supposed to stay sealed in the screen after manufacturing—even in places where there were no LCD devices at the time of collection.AdvertisementThe international research team analyzed 362 chemicals used in LCD screens and found that nearly 100 have the potential to be toxic. These particles don’t break down quickly and have "high mobility" in the environment. When inhaled or ingested, according to the study, these particles can build up in the body over time with toxic effects, potentially causing digestive problems and other health issues.“These chemicals are semi-liquid and can get into the environment at any time during manufacturing and recycling, and they are vaporized during burning,” said University of Saskatchewan environmental toxicologist and lead author John Giesy in a press release. “Now we also know that these chemicals are being released by products just by using them.”According to the study, these chemicals are "simply filled" into the space between polarizers (light filters) during manufacturing and are not chemically bonded to any base material. This means that "they can be released during production; through wastewater; or during active use, disposal, or recycling."To be clear, the researchers didn"t observe any adverse health effects from the accumulation of liquid crystals in the human body; they only found that these crystals do in fact leak from devices, and that they have the potential to be toxic.

Just recently I"ve noticed a very sticky liquid leaking out of one corner of the screen. There are now bright and dark patches on the screen near where it"s leaking. As well as round the screen the sticky stuff gets onto the base of the laptop where I rest my hands to type. lt"s really hard to clean off and I"m worried it may be toxic.

There has been no physical damage to the laptop at all - it just started leaking. Is this a common fault or is it a sign of a defect in the design and manufacture?

There are very obvious massive black spots on the surface of the long bar LCD screen, or there are uneven patches of light and dark and cracks at the same time. The liquid crystal display is squeezed or impacted by the external force, resulting in the liquid leakage phenomenon caused by the rupture of the liquid crystal screen. The external force is not too large, although the liquid crystal screen leakage, but there is no crack on the surface, this fault phenomenon is not easy to find, especially in the case of LCD power is not bright. After the liquid crystal display ruptures the leak, the image can still be displayed.

Strip liquid crystal screen leakage is physically damaged, and the liquid crystal screen is cut and manufactured as a whole, once the leakage will slowly expand, or even can not display normally, which is irreparable unless the entire screen is replaced. But in terms of the cost of making liquid crystal displays, the screen accounts for 2/3, so it"s not cost-effective to replace the screen, so it"s better to buy a new monitor.

The control and drive circuit in the bar display module is a low-voltage, micro-power CMOS circuit, which is easy to be breakdown by static electricity. Electrostatic breakdown is a kind of irreparable damage, which must be paid attention to and should not be careless. Therefore, the display screen in the operation, assembly and use should be careful, to strictly prevent static electricity.

A maintenance film is affixed to the surface of the installed bar display screen to prevent defilement of the appearance during assembly, so it should not be removed before the whole machine is assembled, so as not to stain or damage the appearance surface.

The above is how to maintain the whole content of the bar LCD screens, I hope that we can learn the method of maintenance, so as to prolong the life of the LCD screens. If you want to purchase bar lcd screens, please contact us by email to

I used to work for a laptop manufacturer doing support, and we were instructed that in the event that a customer ever called reporting a leaking LCD we were to IMMEDIATELY tell them to hang up the phone, call emergency services, and get a hazmat team onsite, while we escalated the call to our internal dedicated safety response team. That seems like a pretty harsh response (it"s more severe than what I would have been expected to do for anything short of "My laptop set my house on fire") so I"m inclined to think this stuff isn"t especially safe. It may be true that it"s only a hazard if ingested, though; based on my semi-limited knowledge of the chemistry involved that seems possible. If it were me, though, I"d take the extra cautious route just in case.

(In practice, this basically never happens short of a severe puncture like a blade would cause because of the way these things are manufactured. I"ve actually never personally heard of a situation where an LCD was leaking short of taking a bullet.) EDIT: Let me just make this stronger. This hardly ever happens, ever, anywhere, ever - it"s designed to prevent exactly this sort of problem. Unless you actually witness it in action there is probably no reason to worry about it. See further discussion in comments.

LCD screen display with two polarized materials, between them is a crystal crystal solution. In the use of many users will encounter liquid crystal screen leakage problems, most users are no clue to this, do not know how to do Today, Xiao Bian gave you popular LCD screen leakage of the repair problem, the way to teach you how to maintain the LCD screen.

Seal damage: the main will appear in the screen of the four edge position, if the beverage, fruit juice, soft drinks, tea and other acid-base liquid accidentally from the outside into the screen edge of the soak, it will cause damage to the sealant, inside the LCD Leakage. Screen in the production process if the sealant problems, the same will appear such a failure.

Screen surface by external damage: generally concentrated in the middle of the screen position, can see the obvious signs of glass cracks, then hand pressure leakage parts, you can see the movement of liquid crystal trajectory along the direction of movement.

Physical phenomena: Notebook or liquid crystal display surface has a very obvious block of dark spots (in the case of power), or there are light and dark uneven patches (in the case of no power) at the same time there are cracks. Individual LCD screen due to external force is not too large, although the liquid crystal screen caused by leakage, but the surface does not produce cracks, the fault is not easy to find, especially in the case of liquid crystal display power is not bright to pay attention. After the liquid crystal display breaks the leak, the image can still be displayed. At the same time after the liquid crystal screen leakage test machine will not produce a new fault, we do not have to worry.

Causes and repair: liquid crystal display by external force extrusion or impact, resulting in liquid crystal screen rupture and leakage phenomenon. Solution and maintenance costs: This type of failure is a very clear man-made physical damage, because the display accidentally squeeze or child with a finger press, it may be caused by the impact of the transport process. LCD screen damage to the higher maintenance costs for the LCD screen if the LCD screen is generally not damaged, because the cost of replacing the LCD screen is close to the cost of a model with the same type of liquid crystal display.

-If you crack LCD screens and find the liquid crystal leakage, don’t panic. Just remember that the liquid crystal materials might not be more toxic than your detergents for stove or washroom. Just wash your hands with soup throughout. Never try to play with it or even worse to taste it. The liquid of the cracked computer screen will not evaporate, no emissions worries.

-Any electronics has environment impact and can’t be used landfills. If you want to get rid of old LCD monitors or LCD TVs, give them to electronic collection stations. Let’s the professionals to handle them. They will extract some precious metals/parts and make them into something useful or at least not hazard. FYI, liquid crystal materials are retrievable.

Chemicals leaking from millions of computer screens in homes, offices and schools could damage human health, according to research by Chinese scientists.

Chemistry professor Su Guanyong and colleagues at Nanjing University of Science and Technology in eastern Jiangsu province studied more than 360 types of chemicals used in computer and mobile phone screens and found that 87 of them could be a danger if they got into the environment.

Some chemicals in liquid crystal displays (LCDs) could alter genes, they said. Animal cells mutated unexpectedly if exposed, and preliminary results of their ongoing study published in Proceedings of the National Academy of Sciences on Monday showed that one of the most polluted places was the home.

Researchers said about a quarter of the chemicals from screens they tested might be pollutants. Photo: Getty alt=Researchers said about a quarter of the chemicals from screens they tested might be pollutants. Photo: Getty

Studies found that excessive radiation from screens could speed up the ageing of skin and blue light from diodes could harm the retina of the eye. "But nobody has looked beyond the brightness to unveil the dark secrets behind," Su said.

Over the years, screen panel manufacturers have pushed LCD technology to higher resolutions and faster refreshing rates, but the chemical composition of the liquid crystal that fills their screens has hardly changed.

Smartphones mean booming demand for components such as screens. Photo: Ben Sin alt=Smartphones mean booming demand for components such as screens. Photo: Ben Sin

They exposed embryonic chicken cells to liquid crystal taken from the screens and compared them to cells grown in normal conditions. They found genetic changes that suggested the exposed cells had mutated.

The Nanjing team was baffled by the amount of liquid crystal in the air. They knew screens were made in dust-free factories and sealed, but their surveys of hotels, school buildings, canteens, dormitories, electronic product repair centres, homes and laboratories revealed surprising results.

Scientists say cracked screens and leaking chemicals are a worldwide problem. Photo: Shutterstock alt=Scientists say cracked screens and leaking chemicals are a worldwide problem. Photo: Shutterstock

The lowest levels were found in a canteen, a dormitory and classrooms. Su said they were not sure where the drifting liquid crystals came from. Some screens might have been cracked or broken, he said. If a screen was left on for a long time, heat and radiation might cause liquid crystal to evaporate.

"Electric device recycling plants could be a major source of emissions, with broken screens dumped everywhere and little protection. This practice must stop," he said.

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.

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.