• How do LED HDTVs work?
    9 replies, posted
So I just picked up a budget 40 inch Samsung LED HDTV at Best Buy since I had no need for the smart functionality. I don't feel like 4K resolutions worth it yet until game consoles and more videos come out in 4K resolution. I wanted to talk about how these TVs work because I want to know if the TV processes the image that it displays or if it's the device that you're using to display the image on the TV that processes the video? The TV I got is a 40" led 1080p tv at 60 hertz refresh rate and I payed $279 for it. I got a Samsung for reliability. I've been having a little bit more pixelation than usual I'm thinking that's because of my slow internet connection that I'm using my Chromecast on so I'm going to download an HD Google Play movie to my phone and stream that through my wireless router which should be better than streaming it down my Wi-Fi from the internet since I only get 1.5 Mbps down which is at my grandmother's house. I know that's not the optimal connection for an HD video but Google Play still plays the movie it's just more pixelated than I've ever seen an HD movie and I'm trying to figure out if it's my connection or the TV. Also when I play Family Guy on Netflix through my Chromecast on the same connection it seems like the picture is more crisp I'm not sure if that's because of the way Family Guy is animated but the drawn lines of the characters seem very good/crisp and the colors don't seem pixelated it seems like a clear picture even up close. I didn't get a smart TV because I already had a Chromecast which is in my opinion better and I'm also using a brand new Chromecast version 2 that I just got this morning so I'm guessing the only thing that could be causing this is the connection to the internet through my Comcast router. My TV model is-- Samsung un40h5003af I was thinking about getting an Nvidia Shield TV 500 gigabytes and just downloading the movies directly to that so that I don't have any loss in quality and get the highest quality I can would that be the best solution? So that no matter where I am I still get the highest quality picture.
ima put it simple your tv has a set max res you can't exceed. your device sends the data for the image your tv needs to display, and your device provides the data for that image. your tv processes that data and shows the image. your chromecast sends/receives data through wlan/wifi. if your TV can display a relatively high res (which i'm expecting here), 1080p might still look a tad blurry/pixelated. i don't know what your viewing distance is but it shouldn't be within 2 meters either. on the other hand, if your wlan connection's bad your chromecast will prefer lower resolution output over buffering/stuttering. try switching channels/bands to a band that's less populated. there's tons of wifi scanners for android which you can scan your surroundings and find how many devices are on which channel and pick something different.
What I do in this situation is at a friends house I have a laptop(el cheapo with 500+gb hard drive) and two 500gb portable hdds. I login to the laptop using your preference of remote desktop tools and download movies (1080p or blueray or w.e) to the laptop, when ever I drop by or w.e I will just take that portable hdd with me and leave the other one. So theirs alwase a ready to go storage solution to easily grab and never have to worry about waiting for files to transfer. When I get home I throw it on my 6tb file server and let XBMC on a older apple tv play the content for the tv. I have yet get a device to stream 1080p to the TV. Occasionally I plug in another laptop and do that but I can hardly tell a difference past 480p anyways at my viewing distance with a 43" TV. I fell you bro. 2Mbps here. The part of leaving the laptop at a friends house is very important because you can just rape other peoples 50mb/s internet. Normally I have a timer on the programs I use to start downloading at like 2am and turn off at 11am on weekends and 11pm and 5pm on weekdays. [editline]fkgfh[/editline] Is this a how does it work or how do I make it better thread? :tinfoil:
How it works is that the device your connected to will download and play to video, output to HDMI, then the TV runs that image through its video processor (scaling, de-noise/artifact, interpolation, blah blah), and then you get what you see. Generally stuff like a Chromecast will just output the video as-is without any processing, so the TV does that work. However, the Chromecast will scale the video quality with its internet connection, so if your connection is low bandwidth, you'll get a low quality picture. It tries to avoid buffering whenever possible. Playing locally is going to be the best option as far as video quality is concerned, especially since that 1.5 Mbps is pretty limiting, even when it comes to DVD quality content.
I'm trying to decide if my router is fast enough to stream movies that I download to my phone when I'm connected to the network. If I can get away with doing that then I'll have no need for a shield tv. I'm hoping that works because I won't play games on the shield tv since I have a gaming pc so using it just for movies seems like a waste of $300.
[QUOTE=apierce1289;49966677]I'm trying to decide if my router is fast enough to stream movies that I download to my phone when I'm connected to the network. If I can get away with doing that then I'll have no need for a shield tv. I'm hoping that works because I won't play games on the shield tv since I have a gaming pc so using it just for movies seems like a waste of $300.[/QUOTE] If your using N, I don't think it will be an issue. All your doing is sending the video, and then the router has to repeat it back to the Chromecast. It halves your effective wireless bandwidth (because you can't send and receive at the same time), but that shouldn't be a problem for N.
I'd say 10mbps is good for 1080p video.
[QUOTE=moesislack;49967081]I'd say 10mbps is good for 1080p video.[/QUOTE] i mean it works, but you're cutting it a bit close
depends on the compression, the isp I work for is 8 or 6 at stream start then goes down after about 20 seconds because of muticast. Netflix and other services aren't as advanced and don't have that flexibility so 10 would probably work. I believe we get 3 hd + 1 sd at 35mbps with a 5 mbps internet connection included in that measurement.
[QUOTE=moesislack;49967568]depends on the compression, the isp I work for is 8 or 6 at stream start then goes down after about 20 seconds because of muticast. Netflix and other services aren't as advanced and don't have that flexibility so 10 would probably work. I believe we get 3 hd + 1 sd at 35mbps with a 5 mbps internet connection included in that measurement.[/QUOTE] well i mean realistically it depends on bitrate you can't stream 20Mbps 1080p over 10Mbps for obvious reasons
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