Advantages of LCD Video Projection
1. What makes the assembly of the LCD projector is very convenient that it is compact, since the LCD chip is very small.
One LCD chip is hundreds of times smaller than the projection of three tubes needed in CRT-based televisions projection back. This means that LCD-based rear-projection TVs can be made much thinner and lighter than traditional CRT-based rear-projection sets. Although you can not hang on the wall as you can with a flat panel LCD or plasma TV, you can still save a lot of space, and spend less money than you would like to purchase this stylish flat panel LCD or plasma. Moreover, since these are projection sets, you can get in a larger screen sizes than you can with any LCD or Plasma flat.
2. Other advantages of rear projection technology are its high contrast LCD and ability to shine, as well as lower power consumption.
Limitations of the LCD Video Projection
1. A LCD projection TV can often exhibit what is called "screen door effect". The screen is made up of pixels indivudual, ey, therefore, can be seen on the big screen. This gives the appearance of viewing the image through a screen door.
2.The construction of LCD RPTV may seem simple, but are even more complex and, therefore, usually much more expensive than their CRT counterparts.
3. Once an LCD chip consists of a panel of individual pixels, a pixel burns out it displays an annoying black or white point in the projected image. Individual pixels can not be repaired, if one or more pixels burn out, the entire circuit has to be replaced.
4. Since LCD chips have a finite number of pixels, signal inputs that higher resolutions must be scaled to adjust the amount of fields pixel LCD particular chip. For example, a typical input format of 1080i HDTV has a native display of 1920×1080 pixels for a one-to-one viewer HDTV image. However, if your LCD chip only has a field of 1024×768 pixels, the original HDTV signal must be scaled to fit the 1024×768 pixel count on LCD chip (in addition image also have to be letterboxed to reproduce the correct widescreen ratio). This is where CRT to rear projection sets can project more than a rear LCD projection set. Since CRTs are not limited by a fixed pixel field, they are more flexible, displaying various resolutions, due to be able to variably scan the image on the surface of the projection.
Rich Nashawaty is the owner of Tellyshop [http://www.Tellyshop.tv]. Tellyshop.tv is the definative source for home theater enthusiasts. He is also the author of the new book title “Home Theater 101″ which can be found at Lulu
Twisto Motorized Wall Mount
|
|
VideoSecu Universal LCD/DLP Projector Vaulted Ceiling Mount Bracket Black with 25.6 extension pole PJ2B 1C9 $25.00 Features and Benefits The VideoSecu projector ceiling mount is attractive, strong and light weight. Durable black finish comes with the latest design in safety, flexibility and value for many of today’s most popular LCD projectors. No-Slip adjustment system allows you to quickly and easily fine tune your projector adjustments in order to achieve a perfectly square image. Once your projector is adj… |
|
|
VideoSecu Universal LCD/DLP Projector Ceiling Mount Bracket White Fits both flat or Vaulted ceiling PJ2W 1CA $25.00 This mount is VideoSecu brand.Universal mount features a flexible mounting system that can be used with most projector model, and it has the versatility to attach to nearly any ceiling. The mounting interface features four double-jointed support arms that allow flexible positioning to reach almost any mounting point of the projector. Each arm can be precisely positioned to avoid covering important… |
|
|
Monster Home Series LCD PowerProtect, 2 outlets, White (HS MP AVFL200) $29.95 It’s a surge protector that thinks it’s an outlet. The 1080-joule rating provides a high level of surge protection, while the dual outlet design gives back the space it takes up. Includes 2 AC outlets for AC surge protection and 1 pair of coaxial connections for cable TV, satellite TV and HDTV…. |
