repair sun damaged lcd screen manufacturer

Marine electronics, Chartplotters, VHF radios, Depth Finders, Sounders, PWC, Side By sides, Quad, Snowmobile, utility vehicle clusters. Industrial and Heavy Equipment Machine Controllers displays. Backlight repairs, lens and new LCD replacements (on select models) as well as polishing, and some minor  electrical repairs.

The original Game Boy is a classic. Sure, it had no backlight, but there is something special about playing on that classic green screen. Unfortunately, some of these older systems are suffering a terrible fate — screen burn. Game Boy’s played best with lots of light — especially out in the sun. But that same sun did terrible things to the screen. A black splotch in the center of the LCD is the telltale sign of a burned Game Boy. You might think that screen replacement is the only option, but[The Retro Future] shows us how to repair this issue.

A reflective LCD is a layer cake made up of polarizers, two panes of glass, and a reflector. The burns often seen on Game Boy screens usually are in the polarizer and the optically clear glue which attaches the plastic polarizer to the glass. We’re guessing these burns happen when someone leaves their Game Boy out in the sun. Between the sun rays directly striking the top polarizer and the rays bounced back from the reflector at the rear of the screen, that poor polarizer doesn’t stand a chance.

Repairing the burn is a delicate operation, as one false move could crack the thin LCD glass. The first step is to carefully peel off the burned polarizer. This leaves a mess of dried glue, which can be scraped off or dissolved with alcohol. A new linear polarizer can then be placed on the front of the screen. [The Retro Future] chose not to glue the polarizer, but we’re betting some UV cure LOCA (Liquid Optically Clear Adhesive) from a cell phone screen protector would do the trick.

At ACS, most monitors cost a fraction of what you would pay for a brand new one. You will be very satisfied with ACS Monitor Repair Services – Guaranteed!

LCD, CRT, Touch Screen, CNC, and many other monitors are expertly repaired and serviced. Video driver and controller repair, replacement of screens, back light assemblies, power supplies are just a few of the monitor services provided by ACS Industrial.

ACS also repairs Security Monitors, Hospital Monitors, Medical Monitors, Touch Screen Operator Control Stations, POS (Point of Sale) Terminals, and more...

Sun is the biggest enemy of LCD displays. It will cause them to heat up, discolor, and eventually turn black. The sun hits the display surface with 1250 watts/m2 of energy, which will cause the temperature of the Liquid Crystal cell to increase significantly, even on the coldest of days. This can have the effect of literally causing the Liquid Crystals to boil and turn black, what is known as solar clearing.

We have all probably seen our phones turn off because they are “too hot” and need to cool down before use, but outdoor displays don’t have the luxury of taking a break when they are too hot. QSRs, media companies, and transit stations rely on the display being on and visible no matter what the ambient conditions are. Keeping LCDs cool is critically important to providing a 24/7 use in all environments, where temperature fluctuates and direct sunlight is always an issue.

LCDs have very low reflection and absorb almost 98% of the solar energy. This means that viewing an LCD outdoors works great because of the low reflection, but keeping it cool is the biggest challenge.

LG-MRI’s patented CoolVu® technology is designed to provide a consistent visual image in direct sunlight and in temperatures up to 50oC with no loss in image quality. The innovative technology begins by using computational fluid dynamics to model the internal temperature of the LCD, LCM, media player, and circuit boards over a 15 year period in real world solar and temperature scenarios. Before we build a product, we ensure that it will perform up to spec in the real world for a 10 year period. The CoolVu® feature uses a dual loop cooling system that immediately exhausts out the heat from the sun and never lets it have an effect on increasing the heat within the unit. Since this heat is exhausted from the onset, we never have to worry about heat buildup from the sun, which lowers our energy consumption and allows us to more comfortably run all of our internal components without the worry of overheating them. CoolVu® is also unique in that zero outside air flows over any electronics or optics within the display. All critical internal components of the LG-MRI displays remain cool, dry, and contaminate free (absolutely clean for life). As an added bonus, all of this is accomplished without the use of air-filters, completely eliminating a common requirement for periodic maintenance found in competitive products.

I investigated my landline phone to repare its LCD according to this good tutorial, unfortunatly I found the cutted connection is not on the main PCB board but on the flat connector itself... and any heat applied (soldering tentative...) to the flat is going do destroid it completly ((

I had a Natwest Card reader, where the screen was illegible and using this tip with my wife"s hairdryer I got the card reader operational, many thanks !!!0

Many thanks for sharing the information on how to fix these displays! Worked out perfectly on a asus lcd poster from ages back which gave no screen at all and are not sold anymore to replace.ReplyUpvote

Very good interesting piece. I am no way shape or form of an electronics junkie , but i am more like a jack of all trades and a master of none type. I have a dual power TS-100 hand held calculator where the second digit was pixelated I would say. I googled how to repair it and seen your story. I took my calculator apart and the back side is where that glue strip is at. I could not find my heat gun, thanks to having to move it for the Christmas tree setup. I used my Kitchen Propane stove front burner and waived it over it a few times. It took a few tries but I finally was able to get the dead pixel back. One good thing is the calculator was on so in between heat ups and eraser rubbings I could see my progress and man your fix really worked. Thanks fro the story. My favorite pocket calculator is fixed once again. I wish I would have taken before and after photos, but was too giddy to try your repair idea.0

Google offers no link as to how to open an AEG Voxtel D235 handset. After opening the battery compartment and removing batteries and the two Philips screws at the bottom, the upper half refuses to budge. Is there a method for opening the upper part, to access the LCD screen connector for repair? Any suggestions appreciated.0

I just got my CM921 to work - so, carefully unplug or remove the lcd unit from the circuit board (8 pins i think) then separate the white board (same size as the lcd) from the back of the lcd display (it was glued on one side and i used a scalpel) the lcd will then flip over and you can see the ribbon, then follow the instructions above, return the lcd back down on top of the little white board as before and plug it back in...0

There may be a thin conductive rubber strip between the glass of the display & the board it is attached to. Over time this rubber can leak an insulating compound onto the interface connection that can, at times, be removed by removing the strip and gently rubbing it with a clean soft eraser. Be gentle as it can be fragile & easily damaged. This was an effective repair in the early days of these displays.0

Sun Vision Display panels are100% reflective, meaning they have no backlight whatsoever. This makes them an excellent computer monitor solution for people looking to reduce blue light exposure or other common issues reported by people withcomputer-related vision syndromes. It also makes them an incredible solution for advertising in sunny places, where it can be difficult to view other display technologies - all without racking up hefty energy costs.

Have you ever left your TV or monitor on for days, stuck on the same image? You return to your screen, only to find an image burned into the display. No matter what you do, it won"t go away. It is a permanent image burn.

Why do monitors and TVs get image burn? Why can"t manufacturers prevent LCDs and plasma screens from a burnt image imprint? Moreover, what can you do to fix an image burn?

Before flat-screens and crystal displays, most TVs and monitors featured CRT (Cathode Ray Tube) technology. In CRTs, individual pixels comprise a red, blue, and green phosphor component. Depending on the intensity of each phosphor component, the pixel appears to the human eye as a unique color.

When a particular still image remains for too long, the intensity of each phosphor component diminishes at an uneven rate. The result is a ghost image on the screen, which is known as image burning.

This is a very simplified version of how a plasma screen works. However, the main thing to understand is that plasma screens use phosphor material (like CRTs) to turn those photons into images.

LCD and LED do not work in the same way as CRTs, either. LCD and LED screens use backlit liquid crystals to display colors. Although manufacturers market screens using LED and LCD, an LED screen is still a type of LCD. The white backlight filters through the liquid crystals, which extract particular colors per pixel.

LCD and LED displays don"t suffer from the same type of image burn as CRTs and plasma screens. They"re not completely clear, though. LCD and LED screens suffer from image persistence. Read on to find out more about image persistence.

Before you can fix screen burn-in, take a second to understand why these images burn in the first place. LCDs and LEDs don"t suffer from burn-in as seriously as plasma screens. But static images can leave an imprint on both display types if left alone for too long. So, why does image burn happen?

First, let"s tackle plasma screen burn-in. Remember why CRTs experience image burn? When a still image remains on the screen for too long, the phosphor components in each pixel wear out at different rates. The uneven burn rates leave behind a ghost image, forever etched into the screen.

Plasma screens also suffer from phosphor deterioration. Plasma burning occurs when pixels on the screen are damaged through long exposure. The phosphor loses its intensity and only shows the light it was fed repeatedly. In this case, the still image, which causes the burn.

LCD and LED screens can also experience image burn, though the image burn process can take longer to develop into a permanent issue. In addition, LCD and LED screens suffer from another issue, known as image retention (also known as image persistence or an LCD shadow).

Image retention is a temporary issue that you are more likely to notice before it becomes a permanent issue. However, proper image burn can still affect LCD, LED, and OLED screens.

Image retention is a different issue from image burn (although it is a precursor to image burn). For example, you"re using an image of a steam train as a reference point for a drawing. You have the steam train image on your screen for a few hours before you decide to play a video game instead.

When you load up the video game on the screen, you can still see the faint outline of the steam train on the screen. The steam train image will remain for a short while, but the movement and color changes of the video game (or film, TV show, or other media type) should erase the retained image.

The other thing to consider is that LED and OLED image burn-in, when it happens, is irreversible. That"s because of how LED and OLED screens work. Individual pixels within an LED display decay when they emit light.

Under normal use, an LED, OLED, or QLED screen won"t suffer image burn. However, if you leave your screen on a single channel for hours every day, then burn-in can become an issue, as it would with almost any screen.

Issues arise when a screen shows a single news channel 24 hours a day, every day, causing channel logos to burn-in, along with the outline of the scrolling news ticker and so on. News channels are a well-known source of television burn-in, no matter the screen type.

Image burn-in fixes exist for LCD and plasma screens. How effective an image burn-in fix is depends on the screen damage. Depending on the length and severity of the image burn, some displays may have permanent damage.

The best fix for screen burn is to prevent it in the first place. Okay, that isn"t super useful if your screen is already experiencing image burn. However, you should always try not to leave your screen on a still image for too long. The time it takes for an image to burn-in varies from screen to screen, between manufacturers, sizes, and panel type.

Another prevention method is to reduce screen contrast as much as you can. Unfortunately, most screens aren"t calibrated correctly, often pushing the contrast and brightness settings too high.

Lower contrast means the lighting across your screen is more even. This means less strain on specific areas of the screen, which helps protect against image burning.

If your plasma or LCD screen already has image burn-in, you can try turning on white static for 12 to 24 hours. The constant moving of white-and-black across your screen in random patterns can help remove the ghost image from your screen.

Unfortunately, this won"t work for extreme cases. Some TVs will have a built-in pattern swiping option that basically accomplishes the same thing (filling your screen with random patterns).

Pixel-shift constantly slightly adjusts the image on your screen, which varies the pixel usage to counteract image burn. You might have to enable a pixel or screen shift option in your screen settings. Pixel-shift is a handy feature for LED and OLED screens that cannot recover from image burn and should help counteract an LCD shadow.

Other modern screens feature built-in screen refresh functions that the manufacturer will advise using to remove image retention and image burn issues.

The best tool for fixing ghost images is JScreenFix. The original program helps fix monitors with dead pixels, but the same company also released an "advanced" version of the tool, known as JScreenFix Deluxe.

While the Deluxe version uses advanced algorithms to repair burned screens and prolong plasma and LCD longevity, the official site is no longer up and running, and there is no way to download the full version officially.

If you have television burn-in, you can attach a laptop to your TV using an HDMI cable, extend your desktop to the television, and share the white screensaver. Hopefully, that will shift your television burn-in.

The team over at ScreenBurnFixer offers a few different ways you can attempt to fix screen burn on your TV or monitor. As with any other screen burn-in fixes, their chance of working depends on the scale of the issue.

You can head to the ScreenBurnFixer Video page and find a video that matches your screen type, then let the video play for as long as possible (we"re talking multiple hours, not a quick half an hour blast). Alternatively, head to the Chart page and find your device or a device that matches your specifications.

There are several ways you can attempt to fix screen burn-in. The results will vary between the screen type and the level of burn-in. A screen with extensive image burn may not clear entirely, although you might see an improvement.

Some screen degradation over time is understandable. However, if you follow the steps in this guide, you"ll protect your screen from image burn before it becomes a permanent issue.

I inadvertently left my hand-held GPS unit in my car on the dashboard near the windshield. It was there about five hours in the middle of the day and in the sun. When I picked up the unit, it was hot to the touch. When I turned it on, there were heavy black parallel horizontal lines across different sections of the screen. These lines stayed there regardless what different screen I selected. What happened, and can I correct it?

You did not say what brand or model of GPS you had, but it probably is a unit that uses a liquid crystal display (LCD) to configure and produce the images on the viewing screens. LCD units are most susceptible to outside heat.LCD units have very small crystals made into the screen to produce the total overall image. Depending on the temperature and particular nature of a substance, liquid crystals can be in one of several distinct phases.

One feature of liquid crystals is that electric current affects them. A particular sort of liquid crystal, called twisted nematics, (TN), is naturally twisted. Applying an electric current to these liquid crystals will untwist them to varying degrees, depending on the current’s voltage. LCDs use these liquid crystals because they react predictably to electric current in such a way as to control light passage.

A very small electrical current is directed to each individual crystal. It is used to produce a shade different from the background. The electrical current produces a very small amount of heat, and causes the individual LCD to change its reflective ability, and appears darker. A group or series of these crystals with different shades make up the lettering and images that you see on the screen.

You may have noted what the owner manual listed as an operating range for the unit. It is probably somewhere between 0º and 160º. Evidently the heat accumulated in your unit was above that range while it was on your dashboard in the sun. The heat buildup caused the LCDs to react to the heat, causing them to turn dark. The LCD crystals may have been damaged. Unfortunately, the lines may be permanent.

I had it happen to me one day when fishing in the heat of July. I was fishing at a particular location for over two hours. When I looked at the unit, there were black lines across the face of the display; some were internment. I immediately turned the unit off, dampened a cloth in ice water and placed it over the unit for an hour and, with my fingers crossed, turned the unit back on. Fortunately, I caught the problem before it became permanent. When the unit “rebooted,” the screen was normal. I was lucky.

You may try leaving the unit off and place it in a cool environment for a few days. Then reboot and see if the lines are still there. If they are, the only remedy is a trip to the manufacture’s repair facility.

This outside heat problem is why most “marine” GPS units are manufactured with a silver, white or light-colored case. The lighter colors do not absorb the sun’s heat as would a dark color.

Newer units use an improved type of display. Some of the new-model GPS, depth-finders, radios and cell phones use a Film Compensated Super Twisted Nematic (FSTN) crystal. It too, however, is sensitive to excessive heat and cold, but appears to be an improvement over the LCDs.

This type of crystal provides a better contrast, but is also more costly. The major benefit is the improved contrast ratio, and it is not quite as sensitive to outside heat sources. The contrast ratio is better than the LCD, in that it offers a much-lighter color background and darker pixels.

If you press a bit more than a little, but not too much, some of the warmed crystal can squeeze out. Both time and varying electric current twisting the crystal might cause it to return to it"s correct location - not something you would want to test on a new screen.

"The characteristic of liquid crystals that makes them ideal to be used in display screens is that they align themselves when an external electric field is applied to them. To be more technically specific, these liquid crystals are sandwiched between two pieces of polarized glass ...".

"... several people have had good luck simply applying a small amount of pressure to the affected pixel with your finger or a pen through a folded paper towel or piece of cloth (to keep said pen from scratching the screen). While applying pressure, turn the screen on and off several times.".