Question about 50-60 inch LED / Plasma TVs

  1. I currently have a 40-in Sharp LCD Aquos (5 years old) and I want to upgrade to a 50-in or 60-in LED or Plasma TV. My 40-in Sharp has a very clear picture when using the HDMI inputs. I am looking at Samsung, Panasonic, LG, and Sony models. Won't the picture (that I am used to on my 40-in screen) be "washed out" if I go to a larger screen? I plan to go to BestBuy to look at the picture quality on the 40-, 50-, and 60-in TVs. but maybe someone can advise me until I do.
     
  2. jcsd
  3. dlgoff

    dlgoff 3,069
    Science Advisor
    Gold Member
    2014 Award

    I picked mine by looking at the display of TVs from a long distance and comparing. It was obvious which had the best picture.
     
  4. Greg Bernhardt

    Staff: Admin

    Pick up a nice 4k TV. The HD is unreal. I think netflix has some 4K content.
     
  5. Don and Greg, Thanks for the replies.
     
  6. rcgldr

    rcgldr 7,450
    Homework Helper

    From what I've seen at stores, the 2K LCD / LED displays tend to look washed out, the actual effect seems to be a lack in subtle shading of colors (like a reduced number of bits per color on a computer monitor). The 2K plasma, 4K LCD / LED and the 2K OLED (new technology and expensive) have signifcantly better color. From what I hear, the plasma HDTVs are being phased out.
     
  7. That is what I've read.

    Thanks for the info.
     
  8. Which is a real shame, in my opinion, since plasma has a substantially better image quality than the vast majority of lcd screens on the market.
     
  9. Greg Bernhardt

    Staff: Admin

    I had a plasma 4-5 years ago and it ran very hot, burned in images and died quickly. LED 4K is the near future.
     
  10. Plasma screens must be more expensive to produce?
     
  11. My CCFL-LCD Sharp 40-in has never burned an image on then screen. Are plasma TVs the only ones that do this?
     
  12. rcgldr

    rcgldr 7,450
    Homework Helper

    CRT based hdtvs (front or rear projection) also have this issue. The new OLED hdtvs would have this issue, unless the programming in the OLED hdtv is able to prevent this. The new OLED hdtv's blue segments will degrade faster than the other colors over time, but the computers inside the new OLED hdtv's will compensate for this by increasing the blue signal as the hdtv ages. I'm not sure if this is done via some type of self calibrating closed loop feedback (actual sensing of the colors) or open loop (based on elasped time for each of the colors with no actual feedback).
     
  13. They do run hot, but the new ones don't have nearly the burn in problems of the old ones (you do still have to be a bit careful though). As for LED, unless you mean OLED, I really hope you're wrong - the image quality of plasma is so much better than LED LCD screens that it's a real shame that the market trends effectively are heading towards a downgrade. Plasma is the way to go, currently, until OLED becomes affordable (and I'm honestly unconvinced of the benefit of 4k at normal viewing distances and screen sizes).
     
  14. rcgldr

    rcgldr 7,450
    Homework Helper

    It seems that the 4K LCD based monitors have better color than the 2K LCD monitors, which may be independent of the resolution, and the result of using better components in them.
     
  15. Greg Bernhardt

    Staff: Admin

    I was looking at some in Tokyo a couple weeks ago and a nice 4K TV with a true 4K signal is absolutely stunning. Completely blows away 2K HD.
     
  16. Take a good look at the TVs on display and then choose what suits you best. Well, to be frank, the pictures do get washed out a bit, but it's up to you, what you wanna choose! But sometimes it looks really great on bigger TVs!
     
  17. Fredrik

    Fredrik 10,238
    Staff Emeritus
    Science Advisor
    Gold Member

    The image quality is fantastic, but at least in the demo video I watched in a store, motion looks pretty awful. I think we won't get really great video until the cameras have a much higher frame rate and the TVs are capable of handling that. And I think we won't get that until Blu-Ray has been replaced with something that can store a terabyte of data, or download speeds over the internet has increased to something like 150 MB/s.

    I wouldn't pay extra for a 4K TV today, since there's so little 4K stuff to watch. But I suppose the situation could be similar to what it was a couple of years ago, when I was unwilling to pay extra for 3D, and still got a 3D TV because all the manufacturers included 3D in their best models. I have only used the 3D feature once.

    By the way, when I download stuff, it's almost never worth the extra time to download 1080p, because 720p already looks great, and 1080p doesn't look much better.
     
  18. The major factor (which isn't mentioned) is how far away one will be from the screen. That in relationship with pixel density will determine how washed-out or pixelated the screen looks. If you take a 1920x1080 tv, blow it up to 60" and stand 6' away, you'll definitely see major pixilation.
     
  19. GET A PLASMA BEFORE IT"S TOO LATE ! This may be the last year they are made. Most problems of plasma have been fixed, though they do still consume more energy. LCD/LED tv's are cheaper to manufacture so most don't by plasma, but the superior images are worth it to me.
     
  20. Why will it get 'washed out'? The pixels are the same regardless of how large the display is. Larger displays will either have larger pixels or more pixels, or both.

    From various reviews I've seen when you upscale images, there tends to be a slight improvement rather than degrading as compared to low resolution panels.
     

  21. The pixels are the same, but the key point here is 'pixel density'. A 1080 television has exactly the same number of pixels at 28" and 65". 1080 is the number of pixel lines on the screen (1920x1080 for example). If you increase the size yet maintain the resolution, you WILL have degeigation of image quality if you do not increase your viewing distance from the display.

    Never, will you ever, see an increase In quality when you upscale an image.

    Relativity even applies to televisions! :D
     
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