LCD TECHNOLOGYLCD stands for liquid crystal displays provide the advantage of larger screen sizes than CRT screens. In addition, energy consumption is also more efficient than CRT.LCD is composed of several kinds of constituent layers. Layers composed of colored filter, two pieces of polarized glasses, the composition of the matrix thin film transistor, a layer containing liquid crystal molecules, and a final layer contains bright white back lighting. When turn on the LCD screen, will regulate the voltage at the transistor layer of liquid crystal molecules are composed of three groups of basic colors (red, green, and blue). These molecules will spin and passing the light through a layer of glass and color filters. So, look what you see is the result of a combination of the light color of the liquid molecules.
In general LCD has technical reliability does not differ much from the CRT, so the LCD technical life - according to some producers LCD-- number reached 60,000 hours (about 15 years of normal use). In this period, the LCD will begin to experience the dimming of color due to decreased technical capability component rear light (backlight) that will begin to be replaced by some manufacturers with components of high-intensity LED (light emitting diode) - a high-intensity LEDs. However, this color dimming process will not be too recognizable because of a decrease in the level of overcast condition will take place gradually.
PLASMA TECHNOLOGYPlasma is one of the alternative technology. To display color images, plasma technology uses a combination of red phosphor, green, and blue. But, unlike the CRT technology, plasma gave the charge to the sacs that contain neon and xeon gas that lies between two glass panels.Easy analogy, if the CRT only contains a cathode ray tube (cathode-ray tube), then a plasma consisting of one million fluorescent tubes are so small. When the fluorescent tube is charged, gas neon and xeon will release ultraviolet photons. Then photon impingement phosphorus will issue a colored light. This combination of light will produce images on television.
The problem that arises in the plasma display range on the performance of phosphors that emit light. Phosphor performance will decline over time. If the performance of phosphorus has decreased, then the light emitted when the phosphor threshed photon, will wane and dull. The contrast ratio itself will decline by 50 percent in the use of 4-5 years. As for the aspect of brightness (light ratios), some manufacturers claim, a decline of 50 percent, will occur after use for 60,000 hours (15 years of normal use)Allowing the plasma produced by the diagonal screen size larger than the LCD. In addition, plasma can be seen clearly from different angles than LCD technology today. Only plasma outclassed in terms of the amount of electricity consumption and weight than LCD screens.
But in terms of price, they are not yet able to defeat the CRT screen. If you have a large enough budget to replace your CRT, LCD or plasma can be an option. Moreover, if you have filed a CRT screen for early retirement from the family room. If the budget is not sufficient, it is worth considering a flat-screen CRT technology. Or should wait some time until there are improvements in both of these technologies, especially LCD and falling prices to a reasonable level.
Plasma advantages:
-The black color is firm.
-Did not happen blur (blurred images) on a rapid movement making it suitable for action movies and sports.
-Viewpoint plasma better than LCD also where it is watched on the LCD angle too sharp to be somewhat blurred.
-The final output emulating Plasma LCD TV in terms of resolution where some vendors have issued a full HD plasma but the price is still high compared to LCD TV.
LCD advantages:
- The LCD screen is not glossy like the Plasma megkilat glassy cause annoying reflections from windows and lamps. Plasma is more comfortable viewing in a darkened room or with special lighting.
- Burn-in, plasma also has the disadvantage of burn-in, where it displays the same image for a long period of time such as logos TV, games, messaging walk (ticker) will result in the display are disturbing burnt. It is already recognized and dealt with by a few plasma manufacturers.
- Plasma heavier than LCD TV (this should be a concern if you intend to hang your big-screen TV on the wall).
- The resolution, one thing is quite important that the writer is at the same price, the LCD TV has a higher resolution than the plasma so that it can give the appearance of a sharper image. This causes the LCD TV is suitable for high-resolution video games, computer monitors and digital photo previews.
- LCD weakness in the blur (blurred images) for quick movement also began to be repaired so it is quite convenient to watch sports or movies serving fast-moving action.
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