What is the HDTV projector?
The HDTV projector is a television projector that is built to display high -resolution television (HDTV). It is a television broadcast system that has a significantly higher resolution than traditional television. Modern HDTV is a fully digital system, although early HDTV relied on analog technology. The digital signal allows you to carry a huge amount of information through a relatively small bandwidth and uses advanced video compression algorithms. While in the past, home cinema could only be conceivable for very rich, it is now enough for many people, with cheaper options every day. One of the central domestic cinema components is the projector system, which allows you to display images on large areas, either a specially coated wall or a special screen designed to show the image.
AY to more and more houses has proven to be limited by the traditional quality of broadcasting. The quality of the image broadcast in tel will be displayed on smaller and even medium sizesEvizi standard definition (SDTV) OK. However, the image quality of the image size begins to degrade significantly with the loss of crispy and liveliness. As a result, the projector growth of the projector has largely helped shift the development of HDTV, so the HDTV projector owners were some of the first standard adoptors.
HDTV appeared in the 1990s in the 1990s, when in the beginning and mid -90s, early systems that led to the launch of the HDTV System American Advanced Television Systems in 1998 appeared and depicted the live coverage of John Glenn space. At this point, there were virtually no HDTV systems, but many theaters and scientific centers were equipped with a HDTV projector, allowing them to display feed. This led to the public recognition of HDTV quality and the beginning of adoptors began to move towards the standard.
today the landscape substantiallyIt has changed and HDTV has become a dominant standard, with the HDTV projector has become the foundation in many households. Cable TV stations, network television and satellite networks have accepted HDTV or HDTV, which allowed HDTV projector owners to watch TV shows in large size on their walls or screens. Blu-ray® has also rapidly become a high-resolution display, and many video game systems also have native HDTV capabilities.
There are three main ways to identify HDTV signal, and the HDTV projector can have different native abilities. The first is a resolution that is sent by feed, which is usually either 1280x720 or 1920x1080, usually shorten to 720 or 1080 . The second is a scanning system that can be progressive or interlaced, shortened to p or i . And finally it's a frame rate, which can be a number of different things, but it's largely 24, 25, 30 or 60. So full identificationthat look like 1080p24 .
HDTV projector prices can move wide, with cheaper models available for about $ 500 (USD) and more expensive models by $ 15,000. When purchasing the HDTV projector: resolution, lumens and contrast. The resolution will usually be 1080, although some may be even higher in the future. Lumen can range from 1000 to more than 5,000 and determine how clear the image is, which affects how much ambient light can be present and at the same time see the image. And the contrast ratio also affects visibility and can run from 1: 1000 to 1: 10000. In any case, the higher the number, generally, the better the final picture.