The differences between 720p, 1080i and 1080p HD projectors

The best selling video projectors today are the ones with high definition modes in the types 720p, 1080i and 1080p. We know of many series from many manufacturers in these classes, such as the Mitsubishi HD1000U HD 720P DLP, Optoma HD20 DLP, ViewSonic PJD6531w, Vivitek H1080FD and Epson PowerLite Home Cinema 8100. But what are the differences between these numbers?

The 720p bit is the quantity that refers to the resolution of the image. This means that there are 1,280 and 720 frame sizes in pixels and equals 921,600 pixels per image. Frame rate (Hz) in 720p is typically 23.976, 24, 25, 29.97, 30, 50, 59.94, 60, and 72. p in 720p refers to progressive scan type. When broadcast at 60 frames per second, 720p presents the highest temporal (motion) resolution possible under ATSC (Committee for Advanced Television Systems) and DVB (Digital Video Relay) rules. 720p has a higher vertical resolution than 1080i, making it look better for sporting events like soccer and auto racing.

In this class, we find various types from various brands, such as Epson PowerLite Home Cinema 705 HD 720P, Optoma HD71 DLP, Mitsubishi HD1000U, FAVI RioHD LED 2 Mini Projector, and Panasonic PTAX200U. The price range is from $220 (Mediawise) to $2,700 (NEC NP3250). Average price is around $200-$400.

The term 1080i assumes a 16:9 widescreen aspect ratio, implying a frame size of 1920 x 1080 pixels. Tea me – meaning intertwined – is a technique for increasing the image quality of a video signal without consuming additional bandwidth. This technical video was designed to be displayed on older CRT televisions. Typically, the frame rate in this class is 25 (50 fields/s), 29.97 (59.94 fields/s), and 30 (60 fields/s).

1080p video mode is the same as 1080i in pixels, but differs in scan type. The progressive medium, the newest video mode. The frame rates are 23.976, 24, 25, 29.97, 30, 50, 59.94, and 60.

To reduce confusion when choosing the best video projector, before buying one you should consider five tips below:

Firstchoose one that supports 1080P/1080i/720P signals.

SecondThe projector can also be used with TV, Sky, X-box, X-box 360, PS2, PS3, Wii, PC, Laptop and Satellite/Cable.

Thirdthe lamp life is more than 6000 hours on average.

Foursupports various input jacks such as HDMI, VGA, audio, analog TV, DVI compatible, and component video.

FifthEco mode can be used to reduce general noise and reduce electrical power consumption.