Vision persistence and brain ability are used by this system to rebuild the whole image. With the scan rate 50Hz, each scan can get half an image, which is equal to 25 frames each second in European standard. So, each image contains two video fields, one is for odd lines of image, the other one is for even lines. Interlaced display comes with fewer line in display to make sure a better comfort for viewing.

Consequently, the luminosity is different in the contrast of top and bottom of the screen.

Once the screen is scanned by electron beams from old CRT, a significant delay is shown between the first px on top of screen and the last px at the bottom of screen. LG Releases HS102 Projector that runs on Rechargea.Each image is displayed in 1080i twice, this display aims ate making the number of images double per second and improving the contrast ratio of televisions in low scan rates.For price conscious consumers not necessarily looking into Blu-ray, 720p is the way to go. The reality is that a 1080p projector will only give a slight advantage when viewing standard definition DVD's, TV, and HD broadcasting. While a 1080p projector has the potential to create a sharper and clearer image when compared to a 720p projector, the difference won't be very big. The story is a bit different when dealing with prime time television programming such as seen on NBC or CBS which primarily broadcast in 1080i. The additional resolution won't add to the image quality of an HD sports braodcast since the actual resolution of the signals is limited to 720 lines per frame. If your viewing material is primarily DVDs with HD sports broadcasting, a 1080p projector will give almost no visual advantage in image quality and will be nearly identical to a 720p projector. In addition, unless you have upgraded to Blu-ray you will not be seeing the full effects of a 1080p projector. In todays economy, many buyers are sensitive to price and some buyers don't see a $600-$800 difference between 1080p and 720p. Standard 1080p projectors generally go for about $2,000 and prices can go as high as $4,000. Quality 720p projectors have been falling in price and can now be found for under $1,500 and as low as $1,000. Probably the biggest factor in deciding between 1080p or 720p is of course price.

Despite all the hype and enthusiasm surrounding the 1080p format, many users are finding that 720p is still the way to go. Whether its a 1080p projector or a 1080p Plasma TV, they are selling like hotcakes due to their ability to provide the best video processing method on the market as well as some of the best pictures. As of right now, 1080p is all the rage for any type of home theater entertainment system.

Which is better 1080p or 720p