elfettucine 0 Report post Posted November 18, 2009 Hi there, I thought I'd start a new thread on LED TVs, eventhough they are technically LCD TVs using LED lighting technology. There seems to be some confusion in the market and salesmen at the big electronic shops are marketing it as a different kettle of fish. Even Korean electronics giant, Samsung, is marketing these TVs as LED TVs and not LCD TVs. There are two broad categories of LED TVs. Back-lit and Edge-lit. Simply-speaking, Back-lit TVs can deliver blacker black colours by selectively turning off desired areas of the screen whereas edge-lit LED TVs can be built slimmer, because the diodes are on the side of the TV. Having said that, edge-lit LED TVs are already a lot better than current (conventional CCFL) LCD TVs and a comparison at any store will probably convince most to take the leap and upgrade. Just be mindful to check refresh rates and the number of HDMI inputs the model you're interested in has. Hope this was helpful and please share any news on this techology. oh yeah...and happy shopping Share this post Link to post Share on other sites
Prune 0 Report post Posted November 19, 2009 Hi there, I thought I'd start a new thread on LED TVs, eventhough they are technically LCD TVs using LED lighting technology. There seems to be some confusion in the market and salesmen at the big electronic shops are marketing it as a different kettle of fish. Even Korean electronics giant, Samsung, is marketing these TVs as LED TVs and not LCD TVs. There are two broad categories of LED TVs. Back-lit and Edge-lit. Simply-speaking, Back-lit TVs can deliver blacker black colours by selectively turning off desired areas of the screen whereas edge-lit LED TVs can be built slimmer, because the diodes are on the side of the TV. Having said that, edge-lit LED TVs are already a lot better than current (conventional CCFL) LCD TVs and a comparison at any store will probably convince most to take the leap and upgrade. Just be mindful to check refresh rates and the number of HDMI inputs the model you're interested in has. Hope this was helpful and please share any news on this techology. oh yeah...and happy shopping Bro, can I ask you if I am going to pay games (PS3/XBOX360) 30% of my time and the balance will be watching Channel U or SCVs, will you recommend a Plasma or LCD? My wife wants one bigger than 42" so we may go for 47" or 50" (seems 50" too big) for our 5room. Thx Share this post Link to post Share on other sites
Ve_ve 0 Report post Posted November 19, 2009 Hi there, I thought I'd start a new thread on LED TVs, eventhough they are technically LCD TVs using LED lighting technology. There seems to be some confusion in the market and salesmen at the big electronic shops are marketing it as a different kettle of fish. Even Korean electronics giant, Samsung, is marketing these TVs as LED TVs and not LCD TVs. There are two broad categories of LED TVs. Back-lit and Edge-lit. Simply-speaking, Back-lit TVs can deliver blacker black colours by selectively turning off desired areas of the screen whereas edge-lit LED TVs can be built slimmer, because the diodes are on the side of the TV. Having said that, edge-lit LED TVs are already a lot better than current (conventional CCFL) LCD TVs and a comparison at any store will probably convince most to take the leap and upgrade. Just be mindful to check refresh rates and the number of HDMI inputs the model you're interested in has. Hope this was helpful and please share any news on this techology. oh yeah...and happy shopping May i know what is refresh rate? Sry a bit noob a this Share this post Link to post Share on other sites
elfettucine 0 Report post Posted November 19, 2009 May i know what is refresh rate? Sry a bit noob a this I think this article can explain much better than I can http://ezinearticles.com/?The-Benefits-of-...&id=1668599 How 100Hz originally worked A standard PAL television will refresh the picture 50 times per second or at a frequency of 50Hz. The Frames Per Second (FPS) are the quantity of frames needed to create the illusion of motion. Our eyes are often aware of this frequency depending on the speed of the image, the intensity of darkness, and the intensity of brightness accordingly you will on occasion notice the picture flicker on a 50Hz Television. Moreover the bigger the screen is the more apparent the flicker is. At 100 FPS (100Hz) TV operates at twice the Frames Per Second by creating a duplicate of every frame and inserting it after the previous one. On a 50 FPS (50Hz) Cathode Ray Television (CRT) because the picture is created by an charged particle scan there is a visible flicker that can be seen by the human eye. As a result of doubling the scan frequency to 100FPS and inserting a copy frame this problem is not apparent as far as the human eye is concerned. The result of this is to appreciably reduce the flicker. The benefit of 100Hz on Plasma and LCD TV's Plasma and LCD televisions don't have flickering because they don't generate the picture with an electron scan. However LCD and Plasma TVs still gain from 100 Herts because advanced digital circuitry creates an further frame or middle image. The Television does this by creating an further frame by means of complicated interpolation, as well as motion compensation calculations to calculate what the addition fields and frames look like, instead of inserting a copy frame. (e.g. the first and second frames are different). Nevertheless even at 100Hz the picture still does not produce a completely smooth picture especially with fast motion images. Several television manufactures attempt to reduce this further by using digital picture processing. Typically there is still a little blurring on quick moving images although the advantages are clearer and better-defined surfaces, smoother movement, and sharper pictures than is possible from 50 Frames Per Second LCD TVs and PlasmaTVs. For example if a football moves ten pixels from left to right between frames one, two and three, the 100Hz television will digitally make two added frames between one and two, along with two and three, in which the ball will move five pixels. This results in five frames in which the football moves a total of ten pixels i.e. the initial frames one, two and three plus the digitally created frames inserted between one and two, and in between two and three. The effect of this is that the eye sees an image that moves more smoothly than previously. The advantage is that 100Hz televisions have a clear benefit of ending the majority ghosting effects now and then seen in LCD TVs. The ghosting effect caused by the subsequent image being displayed before the preceding one has faded away. Most top manufacturers have got 100Hz Plasma and LCD televisions including JVC, Panasonic, Toshiba, Samsung, LG, Sony, Philips,Hitachi and Pioneer. Further advantages with 200Hz A range of 200 hertz televisions have been produced by Sony which digitally inserts three additional frames in between the original 50Hz frames. Thus rapidly moving scenes are seen with a smoother, more fluid and sharper picture than 50Hz or even 100 hertz televisions. Share this post Link to post Share on other sites
elfettucine 0 Report post Posted November 19, 2009 (edited) Bro, can I ask you if I am going to pay games (PS3/XBOX360) 30% of my time and the balance will be watching Channel U or SCVs, will you recommend a Plasma or LCD? My wife wants one bigger than 42" so we may go for 47" or 50" (seems 50" too big) for our 5room. Thx Hmmm.... I know it might seem funny since I started a thread about LED TVs, but I still think Plasma's handle action and sports better. So if you're playing game consoles a third of the time with a lot of motion, plasma might still be the right choice. In the stores, they're always playing demo DVDs, which look great on every display, but when you watch actual DVDs, the picture on PLasmas seem sightly better to me. Nicer colours, brighter images and darker blacks. BUT, once they get bigger than 50", I somehow prefer the LEDs. Could just be me, so test yourself.... Then again, just to confuse you more, this guy is really happy with his LED TV http://reviews.cnet.com/flat-panel-tvs/sam...html?tag=txt;uo Edited November 19, 2009 by elfettucine Share this post Link to post Share on other sites
Ve_ve 0 Report post Posted November 20, 2009 Bro, can I ask you if I am going to pay games (PS3/XBOX360) 30% of my time and the balance will be watching Channel U or SCVs, will you recommend a Plasma or LCD? My wife wants one bigger than 42" so we may go for 47" or 50" (seems 50" too big) for our 5room. Thx Oh one thing i heard is that if you play Guitar hero using Led or Lcd tv they need to be sync.. the buttons are not accurate while hitting the notes so it make it harder to hit the note or score. . I am not sure if u play the game just to share what i know. Share this post Link to post Share on other sites
Ve_ve 0 Report post Posted November 20, 2009 I think this article can explain much better than I can http://ezinearticles.com/?The-Benefits-of-...&id=1668599 How 100Hz originally worked A standard PAL television will refresh the picture 50 times per second or at a frequency of 50Hz. The Frames Per Second (FPS) are the quantity of frames needed to create the illusion of motion. Our eyes are often aware of this frequency depending on the speed of the image, the intensity of darkness, and the intensity of brightness accordingly you will on occasion notice the picture flicker on a 50Hz Television. Moreover the bigger the screen is the more apparent the flicker is. At 100 FPS (100Hz) TV operates at twice the Frames Per Second by creating a duplicate of every frame and inserting it after the previous one. On a 50 FPS (50Hz) Cathode Ray Television (CRT) because the picture is created by an charged particle scan there is a visible flicker that can be seen by the human eye. As a result of doubling the scan frequency to 100FPS and inserting a copy frame this problem is not apparent as far as the human eye is concerned. The result of this is to appreciably reduce the flicker. The benefit of 100Hz on Plasma and LCD TV's Plasma and LCD televisions don't have flickering because they don't generate the picture with an electron scan. However LCD and Plasma TVs still gain from 100 Herts because advanced digital circuitry creates an further frame or middle image. The Television does this by creating an further frame by means of complicated interpolation, as well as motion compensation calculations to calculate what the addition fields and frames look like, instead of inserting a copy frame. (e.g. the first and second frames are different). Nevertheless even at 100Hz the picture still does not produce a completely smooth picture especially with fast motion images. Several television manufactures attempt to reduce this further by using digital picture processing. Typically there is still a little blurring on quick moving images although the advantages are clearer and better-defined surfaces, smoother movement, and sharper pictures than is possible from 50 Frames Per Second LCD TVs and PlasmaTVs. For example if a football moves ten pixels from left to right between frames one, two and three, the 100Hz television will digitally make two added frames between one and two, along with two and three, in which the ball will move five pixels. This results in five frames in which the football moves a total of ten pixels i.e. the initial frames one, two and three plus the digitally created frames inserted between one and two, and in between two and three. The effect of this is that the eye sees an image that moves more smoothly than previously. The advantage is that 100Hz televisions have a clear benefit of ending the majority ghosting effects now and then seen in LCD TVs. The ghosting effect caused by the subsequent image being displayed before the preceding one has faded away. Most top manufacturers have got 100Hz Plasma and LCD televisions including JVC, Panasonic, Toshiba, Samsung, LG, Sony, Philips,Hitachi and Pioneer. Further advantages with 200Hz A range of 200 hertz televisions have been produced by Sony which digitally inserts three additional frames in between the original 50Hz frames. Thus rapidly moving scenes are seen with a smoother, more fluid and sharper picture than 50Hz or even 100 hertz televisions. haha thanks for sharing. So conclusion the higher the better. The price also go higher .. lol I love sony tv but not their price :( Dun know much abt the spec but just plain Brand Royalty. Share this post Link to post Share on other sites
elfettucine 0 Report post Posted November 20, 2009 Oh one thing i heard is that if you play Guitar hero using Led or Lcd tv they need to be sync.. the buttons are not accurate while hitting the notes so it make it harder to hit the note or score. . I am not sure if u play the game just to share what i know. ha! i can play the bass and guitar, but suck at guitar hero, so i don't think it's the equipment being in sync Having said that, I can only recall playing guitar hero on Plasma and CRT TVs and they seemed fine. Can't comment on how it performs with LCD TVs .... I play my nintendo Wii with LCD and it seems in sync, but haven't tried guitar hero Share this post Link to post Share on other sites
plg007 0 Report post Posted December 2, 2009 i have one question struct in my mind since long. does LCD TV need proper ventilation? somebody told me not to hang it on wall. but if you place provide proper cooling system in the room. Share this post Link to post Share on other sites
