You went out and bought a brand new LCD TV and now you want a little more information on how your modern electronic wonder works. You need to understand how your new LCD TV works so that you can care for your investment. Below we provide some of the information you need in order to understand how your new television works. After reading this article you should understand a little more about your modern television. You should also have a better appreciation for the work of the scientists and engineers who created your television.
Your modern LCD TV doesn’t have a genie inside that creates the wonderful visual images you see on the screen of your television. The display screen on your state-of-the-art LCD TV is composed of an array of tiny sections called pixels. Each individual pixel is made up of a row of liquid crystal molecules situated between two electrodes and two light filters. By applying an electric charge to the electrodes of each pixel the liquid crystal molecules will rotate under electrostatic force. This twisting can be controlled in order to allow for varying degrees of light through the light filters. This varying degree of illumination produces the light on the display screen of your LCD TV.
The liquid crystal molecules in each pixel on the display screen on your state-of-the-art television are in a normal relaxed state until an electric charge is applied to the electrodes. These liquid crystal molecules are charged bodies that will align themselves parallel to any electric field present. By varying the amount of electric charge running through the liquid crystal matrix in each pixel to twist the molecules and allow specific amounts of light through to light up the display screen.
The light used to illuminate the display screen is actually provided by an average fluorescent bulb sitting behind the liquid crystal solution. The display screen is completely white when the liquid crystal molecules are able to allow the full light spectrum through the polarized glass at the front of the screen. A full light spectrum coming through the glass means the light coming through can be altered to create any color under the rainbow desired.
In order to create every color under the light spectrum on your display screen, each pixel has three different sub pixels of red, green and blue. By controlling the combination of red, blue and green sub pixels at varying intensities, scientists can create any color they desire. The black and white color produced by your display screen is achieved by filtering the white light. The light in this case is provided by cold cathode fluorescent lamps at the back of the display screen.
This is how your modern LCD TV creates the amazing images on the screen you love to watch. This knowledge should help you appreciate the technology that went into creating your television. Now you should be able to just sit back and enjoy watching your state-of-the-art electronic wonder, without having to wonder how it works.