If you are in the market for a new flat panel TV, you will be overwhelmed with a lot of brands and models. Finding the right one to fit your needs can be a tough task. The dilemma that Indian customers face is whether to go for Full HD or just HD Ready TV. Since the price difference is substantial, it is important to make an informed decision.
To understand the difference between Full HD and HD Ready TVs, it is important to know some basic display jargon.
Screen size: This is the size of the display measured diagonally. In the image below, the length of the red diagonal line gives the screen size of the TV.
Resolution: The number of distinct pixels in each direction that can be displayed on the screen. More the resolution, better the image quality.
The primary difference between Full HD and HD Ready TVs is resolution. Resolution of a Full HD TV is double of that of a HD Ready TV.
Resolution of Standard Definition (Conventional) TVs is 720 H x 480 V = less than 1 million pixels.
Resolution of HD Ready TVs is 1366 H x 768 V = 1 million pixels
Resolution of Full HD TVs is 1920 H x 1080 V = 2 million pixels.
* H = number of Horizontal pixels, V = number of vertical pixels
The image above (captured from Sony Bravia Website, India), illustrates the difference in SD, HD Ready and Full HD TVs. Clearly, the image quality of Full HD TVs is far better than that of SD and HD Ready TVs.
What are “i”s and “p”s appended at the end of resolutions?
You might have come across TVs capable of displaying 720p, 1080i and 1080p resolutions. The “i” and “p” stand for Interlaced scan and Progressive scan respectively.
Interlaced scan displays each frame by dividing it into odd and even horizontal lines and displaying them consecutively. The switching is too fast for human eye to catch on standard definition TVs. However, in high resolution TVs, it is easily noticeable.
Progressive scan draws all the lines of a frame in one go.
The above image from wikipedia illustrates the difference between interlaced and progressive scan.
To cut a long story short, “p” is always better that “i”.
Verdict: You should always go for a Full HD TV. Even though Full HD broadcast is not yet available in India, it will be in a few years time. Moreover, once Blue Ray and Playstation 3 gain popularity in India, your Full HD TV will be able to play it the way it is meant to be played.
[Home page image courtesy by Jesper Voetmann]
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