ChiaFong

Posts Tagged ‘HD’

It’s been 1 week

In Personal on 22 December, 2007 at 11:38 pm

1 week after my trip to Shanghai.  There is no place like home.  Sitting here enjoying National Geographic HD in my comfortable sofa, there is really no place like home.  The familiar environment just gives you the comfort.

Merry Christmas and a Happy New Year Everyone.  Life is phenomenal!  Enjoy it!

HD Ready?

In Electronic on 23 February, 2006 at 5:00 am

I don’t think so.  After so many years of bombardment by marketing terms, “XXXXX Ready” should alert you that something fishy is going on.  Recently, I went around looking at the HDTV products that are currently available on the market.  I have also blog about some Plasma Vs LCD.  TV manufacturers are using the “Ready” trick again, specifically “HD Ready”.

They are not wrong when they said that certain technology are “Ready” in their products, but to us consumers, we need to know what do they mean by “Ready”.  “Ready” does not necessary means that the product already has that technology.  It can means that you need to add certain component to get that technology, or that it can simply interface with that technology.  In this case “HD Ready” really just means that the TV can accept any HD input.

So what is HD input?  Let’s start with SD.  SD is Standard Definition and is the current format of normal TV.  It means that the video display has roughly about 480 viewable lines.  HD on the other hand is High Definition and consist of at least 720 viewable lines.

Coming back to “HD Ready”.  Certain cheaper TV Panel although it claims “HD Ready”, you can’t really enjoy HD quality when the format becomes vastly available.  This is because this type of panel can only display 852 x 480 pixels.  Which means that at most it can display 480 lines horizontally.  Which means that this panel is actually a SD panel.  So although it can accept HD input, it will use some technique to decrease the 720 or more lines to only 480 lines.  This is of course not true HD quality.

Some people will say, “Well, I can’t see the difference.”  This is true, unless the shop you go to has HD broadcast set top, you can’t really see the difference between SD and HD.  DVD is actually a SD input source and normal broadcast is also of a SD quality.  So when both SD and HD panels are displaying SD video, how can you see the difference?

So the next time when you go shopping for a new TV and want it to be able to last another 5-10 years, you need to check the specification and see what resolution does the panel support.  If it states that the panel can support 1366 x 768 or 1024 x 768, then you can rest assured that this panel can display HD quality video.