Digital TV site purchase techniques – Digital TV, LCD TV, air conditioning – HC
Rear projection television,
Plasma TV
And
LCD TV
The name of a series of novel, so that consumers are often confused when purchasing TV, we all know
Digital TV
Trend of the future, but when to start the procurement to buy a good and cost-effective, can value for money?
Digital TV will be the future trend, Japan is scheduled to begin in 2006 fully digital TV broadcasting programs, the existing analog television will cease transmission in other regions including the United States, Europe and other regions will also be introduced in the beginning in 2008 broadcast digital television programs. China plans to use the figures in 2008
TV
Beijing Olympic Games. By 2015, China will fully digitalized, complete analog to digital transition, off the air analog signals.
Soon begin broadcasting digital television programs, consumers now the most common traditional tube TV (CRT), digital signal if there is no modem installed, you can not watch digital TV programs, therefore, can now watch digital TV's thin TV, is expected to become the mainstream product.
Thin TV can now be divided into three categories, namely, rear projection TVs, plasma TVs and LCD TVs are three, including rear projection TVs can be divided into LCD,
DLP
And LCOS rear projection TV.
Rear projection TV: The space is large enough only appropriate
Purchasing flat-screen TVs, should first look at the size of television sets the size of the family room is consistent with the current rear-projection TV, almost all the size 50-inch main, 50-inch rear projection TV, often directly on the living room
Floor
On with our normal families are using the TV cabinet is not consistent.
In the United States
TV
Market, almost every household is looking rear-projection TV, mainly because American families living area large enough to accommodate such a large volume of the TV.
Rear projection TV currently mainly LCD, DLP rear projection for the mainstream products in the DLP rear projection TV which has a precise reflection chip, through this chip, the image projected onto the TV screen, are within A projection television, rear projection TV which has a light bulb, light bulbs have life, and most can use 8000 hours, changing the bulb price is quite expensive. In addition, the rear projection TV, if a strong place in the sun to watch, may obscure the problem.
Plasma TV: color beautiful but large power
Plasma is a kind of 40-inch to 50 inches thin size mainstream television, the popular 42-inch plasma TV, plasma domestic price of 14,000 yuan, plasma TVs have to import in 20000 yuan.
Plasma has the advantage of high brightness and high contrast, brightness can be achieved 1000cd/m2, or even higher; up to 5,000:1 contrast ratio, color saturation is also considerable, and no angle problems.
However, the drawback is that the plasma lifetime issue, that is used for some time, the plasma panel will be gradually broken, but after years of technological development, the current lifetime problem has been gradually improved.
Plasma main problem is not high enough resolution, the general market to see more than the plasma resolution is 852 * 480, peak so far is 1024 * 768 resolution is what we see on the TV screen straight and horizontal cross lines of those provisions. Plasma because the resolution is not high enough, so the screen can often see more coarse particles. There is also a problem plasma is more power consumption, the use of electricity than plasma 300w, is generally more than double the power consumption of LCD televisions (LCD TVs typically consume about 150w).
LCD TV: high-resolution high-definition
LCD TV size from more than 10 inches to more than 40 inches are, it can be said size widest range of LCD TVs in the past the most vexing is that there will be problems perspective, ie, from the TV's side of view, the problem may be not clear, however, wide viewing angle technology is now mature enough, this problem has been resolved.
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