HDTV Picture Quality ... Pixels ... Big Screen TV Resolution
What's the difference between old and new technologies, and why should you bother? Older era analog TVs are limited to around 480 distinct display lines, which create an image via interlacing alternatively displayed horizontal lines.
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HDTV, on the other hand, can display up to 1,080 lines. In other word upfront you're getting over three times the signal display capacity as your old analog TV set could produce.
Two (2) Major HDTV Resolution User Strategies. You want absolutely the sharpest image? Then move towards HDTV rated with 1080i. Whoa...hold on, there's one small detail ... what about movement?
Will this great image quality actually handle normal on-screen action? The answer turns out to be mixed: 720p, with less lines and less pixels, actually creates a progressive scan feature that makes motion smoother, with less image-fade. You can easily "see" this technology difference, and decide which is best for you, by doing a simple side-by-side comparison ... same program sequence viewed with 1080i versus 720p.
A Future Blend In 1080p? Down the road a potential technology-busting solution may include1080p TV, which will harness the image-creating strengths of 1080i with the progressive scan benefits of 720p. The Catch-22 is that few programs are being created in the 1080p format.
Can Any HDTV Display 100% Of The Broadcast Resolution? Strictly speaking, no. Even the most high-end expensive HDTVs, with data processing engines like LiCoS (think LCD TV with a twist, or "liquid crystal on silicon") and the most avante guard high resolution DLP or LCD panels cannot show 100% of the source 1080i detail. But, who cares? For most families, the most important quality upgrade is to move away from analog into some form of HDTV.
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