How To Repair Sun Damaged Lcd

Capt. Paul:

I inadvertently left my hand-held GPS unit in my car on the dashboard well-nigh the windshield. It was there almost five hours in the eye of the mean solar day and in the dominicus. When I picked upwardly 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 dissimilar screen I selected. What happened, and can I correct information technology?

Ralph P.
Tampa, Fla.

Ralph:

You did not say what make or model of GPS you had, but it probably is a unit of measurement 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 characteristic of liquid crystals is that electric electric current affects them. A detail sort of liquid crystal, called twisted nematics, (TN), is naturally twisted. Applying an electrical current to these liquid crystals will untwist them to varying degrees, depending on the current's voltage. LCDs employ these liquid crystals because they react predictably to electrical current in such a way as to control light passage.

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

Unfortunately, heat from other sources can also affect the crystals. The liquid crystals are very sensitive to temperature, and are why they are used to make thermometers and mood rings. It also explains why a laptop computer'south display may human activity funny in cold conditions or during a hot twenty-four hour period at the beach.

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

I had information technology happen to me ane mean solar day when line-fishing in the rut of July. I was fishing at a particular location for over 2 hours. When I looked at the unit, there were blackness lines across the confront of the display; some were internment. I immediately turned the unit off, dampened a material in ice water and placed information technology over the unit for an hour and, with my fingers crossed, turned the unit of measurement back on. Fortunately, I defenseless 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 identify information technology in a cool surroundings for a few days. So reboot and see if the lines are withal there. If they are, the but remedy is a trip to the manufacture'due south repair facility.

This outside rut problem is why nigh "marine" GPS units are manufactured with a silverish, white or light-colored case. The lighter colors practise not absorb the sun'due south heat as would a dark color.

Elementary remedy: Shade them from the sun.

My fishing GPS unit is a handheld that I mount on the center console of my bay boat. To defeat the heat problem during a 24-hour interval on the water, I at present use a small white cloth to cover the GPS and the depth finder units. My wife sewed an elastic band and Velcro strips on one edge of the cloths. I then attach the cloth to the top of my units. When under fashion there is ordinarily no need to have the units covered. But, when not moving, I but flip the fabric over the top and face of the unit. I have yet to accept a display go distorted using my material "shield."

Newer units use an improved blazon of brandish. Some of the new-model GPS, depth-finders, radios and cell phones utilise a Film Compensated Super Twisted Nematic (FSTN) crystal. It also, however, is sensitive to excessive estrus 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 exterior estrus sources. The contrast ratio is better than the LCD, in that it offers a much-lighter color background and darker pixels.

If y'all have to contact the manufacturer, try their support section on the Internet or check your user's manual for a phone number.

Got a GPS question for Capt. Paul. Ask it on louisianasportsman.com, and he'll respond information technology, either here or on the Web.

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How To Repair Sun Damaged Lcd,

Source: https://www.louisianasportsman.com/fishing/sun-damages-gps-display-screen/

Posted by: bergmanhison1971.blogspot.com

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