In recent years, the digital television market enlivened by the presence of a flat-screen television technology by some of the leading electronic vendor called LED TVs. Vendor of the most aggressive in TV poured with this new technology include: Samsung Electronics, LG Electronics, Toshiba, and many other leading vendors.
Basically the LED TV is actually a development of this type of LCD TV which uses LED backlight instead of fluorescent light that is used on the type of LCD TV before. There are two kinds of LED TVs on the market: RGB LED with an LED that is placed behind the display panel, or EDGE-LEDs where the LEDs placed around the screen [5].
Advantages of LED TVs
Levels are much higher contrast than LCD TVs, equivalent or even higher than Plasma TVs
Allow manufacturers to produce flat-screen television the size of super-thin, with a thickness of about 2.5 cm
More environmentally friendly
Lower electricity consumption of about 20-30% compared to conventional LCD TVs
Various products from well known vendors LED TV offers digital image processing features, features Digital TV Tuner, and various other new features.
Weakness LED TV
Prices are slightly more expensive, for the same size and features, LED TVs are the cheapest prices around 20% more expensive than conventional LCD TVs
Rabu, 11 Januari 2012
LCD TV
LCD TVs on the market which appear first of Plasma experienced a decline in popularity since the emergence of Plasma TVs offered by considering the various advantages compared to earlier generation LCDs. With a price that is much more expensive for smaller size, making Plasma sales increased.
However, on further developments, LCD TV with economical price with a variety of technical progress, making consumers switch back to LCD TVs. Along with the emergence of HDTV and Full HD TV LCD TV product line, followed by a large size, the price of LCD TVs was also increasingly makes sense in the pockets of consumers.
Basically, LCD TVs work by producing images of black and colored by the selection of light emitted by a series of lamp technologies CCFLs (Cold Cathode Fluorescent Lamps) behind the scenes. Millions of lights will be switched on and off through the LCD shutter by passing white light with a certain intensity. Each shutter will be combined with color filters will miss the colors Red, Green, and Blue (RGB). Shutter and Filter, each of which is a sub-pixel size is very small, and by naked eye to form a joint called pixels [3].
Excellence LCD TV
Reproduce colors more realistic
Anti-glare technology (without shadows)
Available from small to large sizes
No radiation is emitted
Can be used as a computer monitor
Resource requirements of lower power than Plasma
Weakness of the LCD TV
The image quality will decline when seen at a wide angle of view
For large size, more expensive when compared to Plasma TVs
Refresh Rate and Response Time, which is much lower than plasma, so that sometimes produces a blurred image
However, on further developments, LCD TV with economical price with a variety of technical progress, making consumers switch back to LCD TVs. Along with the emergence of HDTV and Full HD TV LCD TV product line, followed by a large size, the price of LCD TVs was also increasingly makes sense in the pockets of consumers.
Basically, LCD TVs work by producing images of black and colored by the selection of light emitted by a series of lamp technologies CCFLs (Cold Cathode Fluorescent Lamps) behind the scenes. Millions of lights will be switched on and off through the LCD shutter by passing white light with a certain intensity. Each shutter will be combined with color filters will miss the colors Red, Green, and Blue (RGB). Shutter and Filter, each of which is a sub-pixel size is very small, and by naked eye to form a joint called pixels [3].
Excellence LCD TV
Reproduce colors more realistic
Anti-glare technology (without shadows)
Available from small to large sizes
No radiation is emitted
Can be used as a computer monitor
Resource requirements of lower power than Plasma
Weakness of the LCD TV
The image quality will decline when seen at a wide angle of view
For large size, more expensive when compared to Plasma TVs
Refresh Rate and Response Time, which is much lower than plasma, so that sometimes produces a blurred image
PLASMA TV
Plasma Display Panel (PDP) or in Indonesia known as the Plasma TV is one type of flat screen TV technology that enables manufacturers to produce large size flat screen TVs in bulk with an economical price.
The term and concept of the technology itself Plasma TVs introduced in 1936 by an expert in Physics, Electronics, and inventor of Hungary [1]. In the development of IBM, Fujitsu, and Panasonic introduced several types of plasma televisions that utilize technology in their research. New in 1997, followed by Philips and Pioneer Fujitsu, released flat-screen TVs with 42 inch size Plasma technology is commercially [2].
The term itself comes from the use of PDP Plasma cells, which is a fluorescent lamp, as the basis for the television screen lighting. A Plasma TVs use millions of Plasma cells are placed between two glass display panels. Each cell contains a combination of noble gases and small amounts of mercury that will be evaporated and given the power to glow and form a plasma. The color produced from phosphorus contained in the cell, where in each cell would contain phosphorus are 3 types of primary colors, namely: Red, Green, and Blue, or commonly known as RGB. The difference voltage assigned to each cell also produce color combinations that exist.
Advantages of Plasma TV
Produces a better black than LCD TVs
Contrast ratio is high (1:2.000.000)
Much more broad viewpoint
Refresh Rate and Response Time is fast, minimizing image blur
Weaknesses Plasma TVs
Still images are displayed in a long time will cause burn-in and image ghosting
The image quality will continue to decline with duration of use, albeit in a relatively long period of time
Heavier than LCDs
Using an electric power larger than the LCD TV
Sizes are generally not available below 42 inches.
The term and concept of the technology itself Plasma TVs introduced in 1936 by an expert in Physics, Electronics, and inventor of Hungary [1]. In the development of IBM, Fujitsu, and Panasonic introduced several types of plasma televisions that utilize technology in their research. New in 1997, followed by Philips and Pioneer Fujitsu, released flat-screen TVs with 42 inch size Plasma technology is commercially [2].
The term itself comes from the use of PDP Plasma cells, which is a fluorescent lamp, as the basis for the television screen lighting. A Plasma TVs use millions of Plasma cells are placed between two glass display panels. Each cell contains a combination of noble gases and small amounts of mercury that will be evaporated and given the power to glow and form a plasma. The color produced from phosphorus contained in the cell, where in each cell would contain phosphorus are 3 types of primary colors, namely: Red, Green, and Blue, or commonly known as RGB. The difference voltage assigned to each cell also produce color combinations that exist.
Advantages of Plasma TV
Produces a better black than LCD TVs
Contrast ratio is high (1:2.000.000)
Much more broad viewpoint
Refresh Rate and Response Time is fast, minimizing image blur
Weaknesses Plasma TVs
Still images are displayed in a long time will cause burn-in and image ghosting
The image quality will continue to decline with duration of use, albeit in a relatively long period of time
Heavier than LCDs
Using an electric power larger than the LCD TV
Sizes are generally not available below 42 inches.
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