ELECTRONICS IN LIFE

Archive for August 23rd, 2009

We’ve reached a point in our modern day society where having a cellular phone is not a luxury, but a necessity. Children as young as toddlers have cellular phones and even the poorest people can be seen chatting away. Cell phones have evolved and developed immensely over the years to include the most advanced software possible. Different accessories became available as well as an assortment of colors to express individuality.
It was only a matter of time before people would want to personalize their cell phones even more. As there are so many people with cell phones, it started to get annoying when one phone would ring, because no one knew who the phone belonged to. Over time the cell phone companies started releasing phones with a wider assortment of ring tones. Read the rest of this entry »

What is Plasma and LCD Technology?

At first glance LCD panels and plasma screens look very much the same, however both use totally different technologies to display your favorite movie, Xbox game or sporting event. A plasma display panel consists of thousands of pixel cells, each containing a mixture of rare gases (usually neon and xenon). Electrodes charge the cells with precise electrical voltages to excite these gases causing them to glow and produce a certain colour.
LCD (Liquid Crystal Display) screens make use of millions of crystals suspended in a liquid that is sandwiched between two glass panels. When these liquid crystal cells are charged the crystals “untwist” to let a certain amount of light, generated by a fluorescent lamp behind the panels, through. The amount of voltage applied to the liquid crystal determines how much light is filtered and the resulting colour you see on the screen. Read the rest of this entry »