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Question: 120hz vs. 60hz Samsung LN40C630 40-Inch 1080p 120 Hz LCD HDTV (Black)
Document: Overall, the Samsung is great. It is worth the price. I did not feel bad about spending a little over seven "big ones". This is coming from someone, who is frugal, and tight with money. If you are looking for a top-notch LCD TV, look no further than theSamsung LN40C630 40-Inch 1080p 120 Hz LCD HDTV (Black).
I am satisfied with my purchase of the Samsung LN40C630 40-Inch 1080p 120 Hz LCD HDTV. This is an upgrade of the Samsung LCD 32-Inch TV that I had. Good picture quality, DLNA connection, and a 3mm external jack at the back. I can connect my earphone with a breeze but your phones must have its own volume control as it couldn't be controlled by using the external jack.
I went to Brandsmart, and I was expecting to buy aSony BRAVIA EX 400 Series 40-Inch LCD TV, Black. The associate told me though it was a 1080p LCD, it was 60hz LCD. Therefore, it would not show as good as an LCD with 120hz. Then, I was looking at theLG 37LH30 37-Inch 1080p LCD HDTV, Gloss Black. It was very reasonable. However, it was a little out-dated. I was then looking at the Samsung.
This is the nicest color tv I have owned...have own Sony, JVC, Sharp actually just about every brand made.The Samsung LN40C630 was purchased to replace a 32" Sony LCD. It was supposed to be used as a seconded viewed TV but right now we watch it more than our 50" Sony LCD. A lot probably has to do with the 120 Hz refresh rate and the 1080p versus the 60Hz and 720p on the Sony. Very Pleased.
I read the reviews, researched several HDTV sizes and models, and eventually purchased the Samsung LN40C630 40-inch 1080 p 120hz HDTV (black). Why? For the price and quality you will not find a better HDTV on the market. There's a reason that Samsung is a leading name in high definition televisions. The color, the sound, and the clarity make it a total viewing experience. High definition television has never looked so good.
Being our second LCD 1080p television I always thought our Sharp Aquos from 3 or 4 years ago was the best television for blu-ray I've seen. But this Samsung takes it to a whole new level in terms of performance for the price. 1080p output is outstanding and the television is housed in a beautiful black shell which is pretty thin for the size.Would recommend this to anyone looking to get into the 40 inch market under $1000. I bought this one from Amazon for 740 bucks.
I love samsungs. I own three of them. I looked around a while before deciding on this one. Biggest factors: Price, this one came in under my 1k budget, Size, i didn't want anything less than 40" Pic. Quality, good contrast ratio and 120 hz was a must.This Samsung LN40C630 fit all that. I play a lot of games and love watching movies, this tv does the job well.
Of course, I know Samsung is a great brand, though I bought theLG 37LG30 37-Inch 720p LCD HDTVlast year because it was cheaper. When I bought that LCD, I knew it would not show as good, but it has been good enough.While making a decision, I found that pixels AND the hertz DOES have an affect on how good an LCD resolution can be. The associate told me the difference between a 60hz and a 120hz LCD is an 120hz shows more of a live picture.
For instance I caught "The Notebook" on cable the first night we had the tv, and it looked like a cheap student film. Think what you want about the actual movie, but I remember that it was beautifully shot. I have played with alot of the settings and have managed to make the tv look ok most of the time.So I guess this is what you get for a $700 120hz 1080p 40 inch tv. I thought I was smart for buying Samsung!
Like any consumer I researched tons of HD tvs and was set on a 40 or 46". I chose the Samsung LNC630 and it is the best purchase I have ever made. The picture is absolutely spectacular....so clean and clear with HDMI. I have an upconverting dvd player and 300 looked RIDICULOUS. The sound is great too, which I did not expect. Samsung has really made a top of the line tv and the 120 hz is the best way to go :)
Answer: I am not sure how to enable it on your specific model, but I do want to mention that there are a lot of misunderstandings here regarding what 120hz really does for you on an LCD, and a lot of confusion between refresh rate and response time.What makes spots look better (less blurry) is *not* refresh rate, but response time, regardless of what the salesman tells you.  Also, you aren't going to get 120 Hz from your PS3, or your satellite or cable TV input, or your Blu-Ray player.  Let me explain to you why not, what 120 hz really means, and what the difference between "refresh rate" and "response time" to help you see the big picture here.To start, what 120 Hz means is that it can refresh the entire display 120 times per second.  However, your video inputs (TV, games, movies, etc) are still going to be limited to a maximum of 60 frames per seconds.  You can't get 120 Hz sports, or 120 Hz movies, or 120 Hz video game console displays, period.  So what's the point of 120 Hz?  To understand this, there are a couple things that are important to understand.The first thing is that Television (in the Americas, Japan, and a few other places) has been traditionally been traditionally been broadcast in a format called NTSC.  As part of this standard, the video signal is 30 "frames" per second (technically, 29.97, or 30/1.001, but 30 is close enough).  However, a frame isn't a single image, like you assume.  NTSC (and traditional televisions) are "interlaced" (which is what the "i" in 1080i stands for).  This means that it only draws half the screen at a time.  It draws the odd lines first, then it goes back and draws the even numbered lines, and repeats constantly.  Each set of these odd or even lines is called a "field".  Two fields together are considered a "frame".  So, as you see, 30 frames per second is actually 60 fields per second.The second thing to realize is that films (and many other video sources) are recorded at 24 frames per second.  Now you might be wondering, "how do we go from 24 frames per second to 30?"  Basically, we stretch the 24 frames per second into 30 frames per second using a technique called "2:3 pulldown (See http://en.wikipedia.org/wiki/Telecine#2:3_pulldown for more information).  In a nutshell, it just so happens that both 30 and 24 are evenly divisible by 6.  2:3 pulldown uses this to stretch every 4 frames of 24 FPS video into 6 frames (or 12 fields) of NTSC video.  More specifically, they are stretching every 4 frames of film, into 5.As a summary for the link above, imagine you have 4 film frames (A, B, C, and D) being converted to 5 frames (or 10 fields) of NTSC video.  NTSC frames 1 and 2 are converted exactly like the film originals.  However, once we get to the 3rd frame of the 5, something weird happens.  The NTSC Frame 3 is taking 1 field from the film frame 2, and one frame from film frame 3 and mixing them together.  It creates a slight blurred video transition.  Then the NTSC Frame 4 does the exact same thing but with film frames C and D.  Then finally the film frame D is copied directly as the NTSC frame 5.  This technique creates tiny artifacts and distortions from the original video.This is where 120 Hz video (and math) come into play again.  120 is picked because it's the lowest number that is divisible by both 24 and by 30.  What 120 Hz LCD TVs do is process the signal and allow you to see it at the original 24 frames per second, deinterlacing the video and removing the 2:3 pulldown effects.  When you are watching video at 120 Hz, what you are really watching is 24 FPS, with each frame displayed 5 times.However, whether you like this still may be a matter of taste.  It might be true to the movie theatre video, but in the theatre there are very brief moments of complete darkness between every frame which actually hide the slower framerate and jerkiness from us.  When it's dark, our mind just automatically kind of fills in the transitions without us even noticing.  This means that even though it's more like the original, some might find it looks jerky or unrealistic because the LCDs don't hide the jerkiness of 24 FPS.  Some people compare it to watching reality television video.However, on the other hand, some people notice the video artifacts caused by 2:3 pulldown (referred to as "Jutter), and prefer the 120 Hz cinema mode.  It really comes down to personal taste.As an aside, that we're making the switchover from Analog to Digital television, we're actually replacing the NTSC standard with the ATSC standard.  However, it's important to keep in mind that it still does not allow us to get to 120 Hz television broadcasts.  ATSC does support several resolutions and framerates.  It can support 24 FPS, 30 FPS (as either 30 actual frames, or 60 fields), and at lower resolutions (720p and 480p) it can even support 60 frames per second.  However, it still doesn't do 120 frames per second.Finally, why is 120 Hz supposed to be better than 60 Hz for sports if we don't get more than 60 frames per second?  Well, that's tricky because it's not exactly about the refresh rate, it's about the response time.  In order to display at 120 Hz, it means the TV must have a better response time (defined as how quickly the crystals in the television physically change in order to show a pixel).  A display of 120 Hz must be able to have a refresh time of 8.3 ms or better in order to maintain 120 Hz (which is 1 second / 120 Hz).  A 60 Hz display needs to have a refresh rate of 16.7 ms or better to maintain 60 Hz.  A better response time and refresh rate can reduce image blur from one frame to the next on fast action video.  However, this is more of merely being a side-effect of being 120 Hz.If you have a 60 Hz display with an 8 ms response time, sports broadcasts should look exactly as clear as a 120 Hz television.  With a 60 Hz TV with a 5 ms response time, I have serious doubts anyone could tell the difference between the 60 Hz TV and a 240 Hz TV.I hope this helps clear things up for people.