【 Weak current College 】 home projectors what resolution the most suitable? ---Power By 【 China power house network 】

Many people want to buy a widescreen home theater projector, because the ratio of 16: 9 HDTV high definition signal is a standard format. At present, the market for 16: 9 projectors mainly has three resolution: 854x480, 1024x576 and 1280x720. In the new scan display standard, they are called 480p, 576p, and 720p.

First, let us recognize the "highest resolution will never be able to show the best results" of this fact is recognized by the understanding and not comprehensive. Many of today's popular 480p projectors can be very good performance of the standard model and HDTV high definition signal images. Specifically, if we have now entered an era of high definition signals, all TV transmission using 480 lines of video signals, you use the DVD as well as standard TV has 480 line scanning rate of image effects, at this point, the resolution of the projector to 854x480 on line of the display images without any compression and signal loss, show the best image transmission signal.

If you purchase a higher resolution of the projector, such as 1024x576 resolution product, when you display a DVD signal. And imagine the opposite, it does not show a clear and sharp picture screen, you can only display the DVD of 480 lines of video signal effect, this is because the projector will not be able to transmit signals to create new video information, so the projector needs will 576p 480 line signal forcibly changed to 576 lines, this process is called signal compression ratio. Everyone expected signal scaling will achieve the best results, do not lose too much image information, however, generally speaking, sharp images with the resolution of different projectors projecting out the result of atomization is somewhat.

So, why do we choose higher-resolution projectors? high-resolution projector has two advantages.

First of all, it has a higher number of displayed pixels, which means that it can display some cannot clear display of the pixel information, users can enjoy no pixel missing video.

Second, it can show up with a better HDTV images because HD high-definition signal (1920x1080 or 1280x720 resolution) compression-ratio compression 1024x576 resolution as 854x480 resolution is much better, 576p mode has more displays the number of pixels, it can be better to restore the HDTV signal images.

However, these advantages are not obvious, 480p projector pixel performance is also very good, close to reduce loss of 576p pixel image, the difference is very small. The HDTV signal compression into a low-resolution signals must lose image detail, whether it is compressed to 480 lines or 576 lines, compressed capacity is between very small.

The most fundamental question is: do you want to spend more money to get display HDTV signal subtle enhancement, and so sacrificed show DVD signal sharp image screen? most users think this is a dilemma in the NTSC signal common now, the resolution of the projector 1024x576 price/performance ratio at a disadvantage.

On the other hand, PAL or SECAM signal full use of the country the situation is very different, because with the NTSC format 480 lines, their video format is 576 lines, in such circumstances, resolution of the projector is projected 1024x576 DVD signal screen or standard video signal. It is precisely for this reason, TI company push its production of 1024x576 resolution DLP chip, which is named "Matterhorn (Mata Horn)", because it is most suitable for PAL and SECAM has been formatted as standard video formats in the European market.

On the other side of the Atlantic market, the resolution of the projector 1024x576 in market performance of relatively poor, because apart from Brazil and Argentina and other countries of the Western Hemisphere are no 576 lines of standard video format. So, whether it be playing standard format or high-definition video format, 576 resolution projection opportunities slightly picture noise.

Latest 1280x720 resolution DLP projector price less than 3000 USD, while the same resolution of the LCD projector is less than $ 2000, in Europe and the market price is higher than 1024x576 resolution projector 1280x720 resolution projectors have been eliminated from the market, therefore, purchase 576p or 720p both projector expensive is almost the same, if the user wants to upgrade 460p projector to a higher resolution, then we need to see what kind of resolution of the projector more suited to the needs of the users and the signal format.

As a General in the NTSC standard, if you want to spend the least amount of money to enjoy the best DVD image screen, then 480p resolution projector brings shock DVD image effects as well as satisfactory HDTV signal image, at present, the input is not more than 1200 dollars; if you have more funds in the budget, and would like to see elimination of pixel noise and more sharp HDTV images, resolution of the projector 1024x576 can serve as a transitional product selection; if you watch 1280x720 or more high-megapixel video images or pure high-definition signals, so only the best choice is 720p resolution projectors.