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Liquid Crystal Displays

Liquid crystal displays (LCDs) is a flat, thin display tool which is made up of an array of tiny segments called monochrome pixels or color in front of a reflector or light beam. It is valued by engineers because of its very little amount of electric power usage, and for that reason is suitable for use in electronic devices which are battery-powered.

Every pixel in liquid crystal displays is made up of a layer of liquid crystal molecules balanced between two transparent electrodes and two polarizing filters, to which the axes of polarity are at right angles to each other. Light passing through one would be blocked by the other without the liquid crystal between them.

Through controlling the twist of liquid crystals in every pixel, light can be permitted to pass through varying amounts, likewise illuminating the pixel. It is common to align the polarizing filters so that pixels are translucent when unperturbed and become solid in the presence of an electric field, however the reverse is sometimes done for special effects. The basic idea common to all liquid crystal displays is to manipulate this array of pixels to present information.

To save expenditure in electronics, LCDs are frequently multiplexed, where electrodes on one side of the display are collected and wired together, and each group obtains its own voltage, and on the other side, the electrodes are also grouped with every group receiving a voltage sink. Every group is designed so that very pixel has an exclusive, unshared combination of source and sink.

The most common liquid crystal displays are the ever-present wrist watch, pocket calculator, and to the more advanced VGA computer monitors, where this type of display has advanced into an important and multipurpose crossing point.

Liquid crystal displays have become important because of several factors, first of which is being ‘size’. LCD’s is made primarily of two glass plates with liquid crystals between them, thus no bulky picture tube which makes it practical application where size, as well as weight is concerned.

Another is, generally LCDs use much lesser power than the cathode-ray tube (CRT). Several liquid crystal displays are reflective, which means that they only use ambient light to elucidate, and even those that do require external light source such as computer displays, use much less power than CRT devices.

Essential factors to put in mind when assessing an LCD monitor is to include resolution, color support, aspect ration, brightness and contrast ration, viewable size, response time or sync rate, input ports, and matrix type whether active or passive.

LCDs do have drawbacks however, and are still subject to intense research. Difficulties with viewing angle, response time, and contrast ratio still needs to be solved before this type of displays replace the cathode-ray tube for good. Nevertheless, with the pace of technological innovation presently, that day may not be that far away in the future.

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Liquid Colloidal Silver

The precious metal, silver, is mined for several industrial purposes. It is utilized in jewelry, electronic equipment, dental fillings, silverware, disinfecting water, and photographic processing.

It should be noted that people are exposed to silver all the time. There are particles of silver too tiny for the naked eye to see found in our surroundings – the air we breathe, the water we drink, and the food that we eat. It is also possible that we are exposed to silver in our work or in our hobbies.

While silver has no biological function in living organisms, silver has had some medicinal uses. For centuries it has been used as a form of allopathic medicinal drug to treat various illnesses. However, modern drugs have long since replaced silver in those uses.

Still, there are a few existing prescription drugs that contain silver. One good example of a silver-containing drug still in use is silver nitrate, which his used to prevent conjunctivitis, a condition of the eyes affecting newborn babies. Silver nitrate may also be used to treat skin conditions, such as warts and corns. There is also another drug, called silver sulfadizine, used to treat burns. Both these drugs are applied to the body. In other words, they are topical treatments and not taken orally.

What is liquid colloidal silver?

Liquid colloidal silver is a silver product that contains silver particles suspended in liquid. While most liquid colloidal silver products are made of pure silver and liquid base, some may actually contain additives. For instance, liquid colloidal silver may contain proteins and coloring.

Most liquid colloidal silver products are available as oral supplements, in which case they are considered as dietary supplements. However, there are some products that can be applied topically.

How it works

Liquid colloidal silver has a bad reputation in conventional medicine. Many scientific circles have long held the traditional belief that the substance is toxic and should be avoided in place of more modern and less harmful drugs. However, proponents of alternative medicine have a different view all together. In fact, they are all praises for liquid colloidal silver as an antibiotic.

In the book, Prescription for Nutritional Healing, authors Phyllis A. Balch and Dr. James F. Balch wrote that colloidal silver can offer a safe and inexpensive way to protect yourself from infections.

According to Dr. Balch, topical application of liquid colloidal silver can help “fight fungal infections of the skin or nails” as well as promote healing by speeding up tissue formation in burns, wounds, rashes, sunburn, and cuts. In addition to that, it can also be used to treat toothaches and mouth soars. Used as eye drops, it can help prevent infections of the eyes, such as conjunctivitis which can cause blindness in newborn babies.

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