Results 1 to 7 of 7

Flat panel TVs - continuing the debate further

  1. #1
    Guardian Angel just4kix's Avatar
    Join Date
    Dec 2007
    Posts
    11,632

    Default Flat panel TVs - continuing the debate further

    The following articles discussed the flat panel TVs in great detail:


    This article extends the thought process further.

    Size and Viewing Distance
    It is generally recommended that your sitting position is at a distance that is at least two times the diagonal screen size - OK, for the purist the figure is 1.8 times. This means that if the TV is 40" diagonal, the best viewing distance is 72" or 6 feet. Anything less is strain to the eyes, more means some very minute details may be lost.

    HD Ready or Full HD
    Perhaps a repeat of or carry-over from previous article.

    HD ready means 1366x768 pixels. This is also known as 720p. True or full HD means 1920x1080 pixels or 1080p. Full HD obviously means more clarity, brilliance and overall quality. But ...

    In my opinion, unless you are going to watch true high definition (Blu-Ray, PS3, XBox, etc.), 1080p or Full HD is something that you can do without or it will bring you no extra benefit. If you are going to watch standard cable/DTH, VCR/VCD/DVD, etc. then there is no real extra "joy" that you will get from a true/full HD TV. In fact, cable/DTH will look better on HD-Ready TV.

    Wall mount or Table mount
    Wall mount looks more professional. But this means that you cannot move your TV. So unless you have a dedicated home theatre room, the wall mount is not necessary and in fact will reduce your options quite a lot. But wall mount does have a lot of advantages:
    • When professionally installed, the wall mount makes the TV very sturdily installed. A table mounted TV can be easily dislodged (and broken) by a bad shove.
    • Imagine a wall mounted flat panel TV mounted high on the wall opposite to your bed. You can watch TV while in sleeping position!
    • When professionally installed with cables concealed in the wall, the wall mount looks grand indeed.


    Number of inputs
    Most flat panel TVs have a certain number of inputs - 3 or 4 HDMI, 2 or 3 component, 1 or 2 composite, a VGA (for computer) and maybe USB. These are usually sufficient for the most. But if you are a compulsive geek (like me), you may run out of options. Please make a full list of devices that you may be connecting to the TV today and near future.

    Ergonomics
    Check the buttons on the TV. Are they touch sensitive or pressure sensitive? Where are they located? How easy is it to reach them? How good is the remote?

    Also make sure that some important inputs, like USB, are easily accessible. For instance, it will be most inconvenient to plug in your USB stick to the TV when the USB port is accessible from the rear - a side port is much better.
    *** Never argue with an idiot. ***

    All my useful articles and Guides | My DVDs | My Blu-Rays | My Blogs
    -------------------------------------------------------------------------------------------

  2. #2
    Bronze Member
    Join Date
    Jul 2009
    Posts
    152

    Default question about progressive and interlaced scan

    i have an analog cable connection.i watch it on a computer monitor using a TV tuner card.now why isn't the channel logo stable on viewing from very close distance,even for the channel with the best reception.i know the analog signal is interlaced scan,and my monitor is progressive scan.but when i view HDTV rips which are digital and progressive scans the channel logo are like a static picture,unlike the analog signal which i have.
    now this brings me to the next big question,all of the HDTV receptions available in india are digital but interlaced scan,will that mean the channel logo will not be stable on viewing on a progressive scan display?
    also if progressive scans are better than interlaced scans because they offer superior refresh rates,why not launch them in india instead of interlaced scans.
    CUSTOM MACHINED

  3. #3
    Guardian Angel just4kix's Avatar
    Join Date
    Dec 2007
    Posts
    11,632

    Default

    Quote Originally Posted by iorhld
    i have an analog cable connection.i watch it on a computer monitor using an analog TV tuner card.now why isn't the channel logo stable on viewing from very close distance,even for the channel with the best reception.i know the analog signal is interlaced scan,and my monitor is progressive scan.but when i view HDTV rips which are digital and progressive scans the channel logo are like a "static" picture,unlike the analog signal which i have.
    I cannot really answer this question. Haven't the vaguest idea of why this is happening. Interlaced scan produces flicker but not shaky/unstable picture. Are you saying that logo is shaking top/bottom or sideways or is it flickering? If it is flickering then it is normal.

    Quote Originally Posted by iorhld
    now this brings me to the next big question,all of the HDTV receptions available in india are digital but interlaced scan,will that mean the channel logo will not be stable on viewing on a progressive scan display?does playing an interlaced video on a progressive display automatically downgrade the maximum theroretical possible picture quality of the display.
    All LED HDTVs are capable of displaying interlaced scan as well as progressive scan pics. The TV will not downgrade the picture. Interlaced scan does not mean a downgraded picture. It is just that you see half the lines in first 1/30th (NTSC) or 1/25th (PAL) of a second and the next half in the next cycle. Interlaced scan results in image flicker and not a downgraded picture. But HDTV with 100Hz or 200Hz frequency will reduce the flicker to such an extent that you will find no difference between 'i' and 'p'.

    Quote Originally Posted by iorhld
    do all progressive displays have an inbuilt deinterlace software.
    Yes.

    Quote Originally Posted by iorhld
    is it true that on playing an interlaced video on a progressive scan display,the video turns into progressive scan?
    No.

    Quote Originally Posted by iorhld
    also if progressive scan transmission are better than interlaced scan ones because they offer superior refresh rates,why not launch them in india instead of interlaced scans. i may have the answer to the last question,it's because of the allowed bandwidth per channel.
    As stated earlier interlaced scan is not inferior in quality. Broadcasting uses an Frequency Modulated (FM) wave as a carrier. It is not very costly to have 'i' as well as 'p' signals in the same transponder. The cost does not justify the gain.

    Quote Originally Posted by iorhld
    i know all the HD programs of "major" international channels like discovery are shot in 1080p,but in india we get it in 1080i.does it mean we are theroetically getting "poorer" quality than the maximum possible quality?
    Incorrect. All HD programs are in 1080i, even abroad.

    Quote Originally Posted by iorhld
    LCDs have dead pixel problems,LEDs have burn in problems,so what about LEDs?
    LED TV are also LCD. They are actually LED backlit LCD and have the same issues as standard LCD.
    Last edited by just4kix; 28th July 2010 at 07:27 PM.
    *** Never argue with an idiot. ***

    All my useful articles and Guides | My DVDs | My Blu-Rays | My Blogs
    -------------------------------------------------------------------------------------------

  4. #4
    Bronze Member
    Join Date
    Feb 2008
    Posts
    285

    Default

    why does the cost of an led backlit tv increase so much

  5. #5
    Guardian Angel just4kix's Avatar
    Join Date
    Dec 2007
    Posts
    11,632

    Default

    As with any new technology, the current price of LED backlit LCD TV price is high. Price will decrease in time.

    Same was true with Plasma TV, LCD TV, DVD players, BD players, etc.
    *** Never argue with an idiot. ***

    All my useful articles and Guides | My DVDs | My Blu-Rays | My Blogs
    -------------------------------------------------------------------------------------------

  6. #6
    Bronze Member
    Join Date
    Feb 2008
    Posts
    285

    Default

    Quote Originally Posted by just4kix View Post
    As with any new technology, the current price of LED backlit LCD TV price is high. Price will decrease in time.

    Same was true with Plasma TV, LCD TV, DVD players, BD players, etc.
    i mean they are just replacing florescent lamps with leds so why such a huge price difference?

  7. #7
    Guardian Angel just4kix's Avatar
    Join Date
    Dec 2007
    Posts
    11,632

    Default

    Quote Originally Posted by vinit View Post
    i mean they are just replacing florescent lamps with leds so why such a huge price difference?
    The LEDs in lamps such as torches, large lamps, autos are different and much cheaper than the the LEDs used in TV panels. And try counting the sheer number of LEDs in the panel?
    *** Never argue with an idiot. ***

    All my useful articles and Guides | My DVDs | My Blu-Rays | My Blogs
    -------------------------------------------------------------------------------------------

Similar Threads

  1. Flat Fee advertising
    By talktoanil in forum Web hosting
    Replies: 1
    Last Post: 17th December 2015, 10:22 PM
  2. Replies: 7
    Last Post: 27th April 2012, 09:23 AM
  3. Replies: 0
    Last Post: 1st December 2011, 08:56 AM
  4. Help: Russian needs a flat with Internet
    By Balgator in forum DSL Broadband Service Providers
    Replies: 22
    Last Post: 26th February 2009, 09:42 PM
  5. Looking for ISP minimum 1Mbit/s Flat
    By HostEurope in forum Airtel Broadband
    Replies: 1
    Last Post: 28th December 2007, 11:28 AM