LCD TECHNOLOGY
LCD stands for liquid crystal display provides the advantage of larger screen sizes than CRT screens. In addition, energy consumption is also more efficient than the CRT.
LCD is composed of several kinds of constituent layers. Layers consisting of colored filters, two pieces of polarized glasses, the composition of the matrix thin film transistor, a layer containing liquid crystal molecules, and a final layer contains the lighting behind white light. When turn on the LCD screen, will regulate the voltage on the transistor layer of liquid crystal molecules consisting of three groups of primary colors (red, green, and blue). The molecules will be spinning and the light passing through layers of glass and color filters. Thus, the view you see is the result of a combination of light color of the liquid molecules.
LCDs generally have a technical reliability does not differ much from CRTs, LCDs, so the technical age - according to a few manufacturers of LCD - reaching 60,000 hours (about 15 years of normal use). In this period, the LCD will begin to experience the dimming color by decreasing the technical ability behind the light components (backlight) which will begin to be replaced by some manufacturers with components of high-intensity LEDs (light emitting diode) - high-intensity LEDs. However, this color dimming process will not be too recognizable because of decreased levels of this overcast condition will progress slowly.
LCD is composed of several kinds of constituent layers. Layers consisting of colored filters, two pieces of polarized glasses, the composition of the matrix thin film transistor, a layer containing liquid crystal molecules, and a final layer contains the lighting behind white light. When turn on the LCD screen, will regulate the voltage on the transistor layer of liquid crystal molecules consisting of three groups of primary colors (red, green, and blue). The molecules will be spinning and the light passing through layers of glass and color filters. Thus, the view you see is the result of a combination of light color of the liquid molecules.
LCDs generally have a technical reliability does not differ much from CRTs, LCDs, so the technical age - according to a few manufacturers of LCD - reaching 60,000 hours (about 15 years of normal use). In this period, the LCD will begin to experience the dimming color by decreasing the technical ability behind the light components (backlight) which will begin to be replaced by some manufacturers with components of high-intensity LEDs (light emitting diode) - high-intensity LEDs. However, this color dimming process will not be too recognizable because of decreased levels of this overcast condition will progress slowly.
PLASMA TECHNOLOGY
Plasma is one of the alternative technologies. To display the image in color, plasma technology uses a combination of red phosphor, green, and blue. But, unlike CRT technology, plasma gave the charge to the pockets of gas containing neon and xeon which is between two glass panels.
Easy analogy, if the CRT only contains a cathode ray tube (cathode-ray tube), the plasma consists of one million fluorescent tubes are so small. When the fluorescent tube is given a charge, neon and xeon gas will release ultraviolet photons. Then the photons hit the phosphor which will give off light in color. The combination of this light will produce images on television.
Problems that appear on plasma screens around the performance of phosphor that emit light. Performance phosphorus will decrease over time. If the performance of phosphorus has decreased, then the light photons emitted when crushed phosphorus, will be minor and fainter. The contrast ratio alone will decline by 50 percent within the use of 4-5 years. As for the aspect of brightness (light ratio), some manufacturers claim, a decrease of 50 percent, will occur after the use for 60,000 hours (15 years of normal use)
Plasma allows manufactured with a diagonal screen size greater than the LCD. In addition, the plasma can be seen clearly from different angles than LCD technology at this time. It's just lost a class of plasma in terms of number and weight of power consumption than LCD screens.
But in terms of price, both are not able to beat the CRT screen. If you have a budget large enough to replace your CRT, LCD or plasma could be an option. What's more, if you have filed a CRT screen for early retirement from the family room. If the budget is not enough, it is worth considering a flat-screen CRT technology. Or should wait some time until there are improvements in both technologies, especially LCD and lower price to a reasonable level.
Easy analogy, if the CRT only contains a cathode ray tube (cathode-ray tube), the plasma consists of one million fluorescent tubes are so small. When the fluorescent tube is given a charge, neon and xeon gas will release ultraviolet photons. Then the photons hit the phosphor which will give off light in color. The combination of this light will produce images on television.
Problems that appear on plasma screens around the performance of phosphor that emit light. Performance phosphorus will decrease over time. If the performance of phosphorus has decreased, then the light photons emitted when crushed phosphorus, will be minor and fainter. The contrast ratio alone will decline by 50 percent within the use of 4-5 years. As for the aspect of brightness (light ratio), some manufacturers claim, a decrease of 50 percent, will occur after the use for 60,000 hours (15 years of normal use)
Plasma allows manufactured with a diagonal screen size greater than the LCD. In addition, the plasma can be seen clearly from different angles than LCD technology at this time. It's just lost a class of plasma in terms of number and weight of power consumption than LCD screens.
But in terms of price, both are not able to beat the CRT screen. If you have a budget large enough to replace your CRT, LCD or plasma could be an option. What's more, if you have filed a CRT screen for early retirement from the family room. If the budget is not enough, it is worth considering a flat-screen CRT technology. Or should wait some time until there are improvements in both technologies, especially LCD and lower price to a reasonable level.
Advantages of Plasma:
- The black color is clear.
- Not occur blur (blurred images) on the rapid movement making it suitable for action movies and sports.
- The angle of view of the plasma is also better than LCD in which if viewed at an angle that is too sharp LCD will be somewhat blurred.
- Plasma trying to compete with the latest LCD TVs in terms of resolution in which some vendors have already issued a full HD plasma but the price is still high compared with LCD TVs.
- The LCD screen is not glossy like the cause annoying reflections from windows and lamps. Plasma is more comfortable viewing in a dark room or with special lighting.
- Burn in, plasma burn-in also has a weakness, which if it displays the same image for a long period of time such as TV logos, games, message runs (ticker) will result in burn marks on the screen is annoying. This has been recognized and addressed by some manufacturers try to plasma.
- Plasma is heavier than LCD TVs (this needs to be a concern if you intend to hang your big screen TV on the wall).
- Resolution, one thing is quite important according to the authors for the same price, LCD TVs have higher resolution than the plasma so that it can provide a sharper image. This causes the LCD TV is very suitable for high-resolution video games, computer monitors and see the results of digital photos.
- Weakness of the LCD in the blur (blur) for fast movement also began to be fixed so it is quite comfortable to watch a sporting presentation or fast moving action movies.
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