Showing posts with label led tv ghosting. Show all posts
Showing posts with label led tv ghosting. Show all posts

Friday, May 23, 2014

which one do you recommend? an LCD tv vs. a LED tv ?




Mostafa


initially i wanted to buy a lcd tv, but i have heard that led tvs are better, is it right ? which one is better? what are their cons and pros?


Answer
LED is a type of LCD. They are the exact same type of TV. The only difference is that "most" LCDs use CCFL backlights as their light source (florescent lights). LED LCDs use LED backlights as their light source. That is the only difference between the two options.

LED backlights provide LCD televisions with more vivid colors, truer blacks, and deeper contrast. But it is considered a premium feature, and therefore you are expected to pay extra for it (quite a bit extra). In the 40" - 46" range, I think there are going to be visible advantages to it, but not necessarily a return on the dollar. If you break 50", then okay, you are likely more warranted to consider the LED option.

Most, if not all, LED sets also automatically come with 120Hz or 240Hz refresh rates. This helps with LCD's inherent flaws in motion playback (all LCDs, any light source type, suffer from motion blur or ghost trails). But again this is considered a premium feature that you are expected to pay extra for. So this further drives up the price of an LCD set. And again, depending on what size of TV you're getting into, this may or may not provide a reasonable return on the dollar.

Just so you know, Plasma has superior colors, truer blacks, and deeper contrast than LED LCD. And it does so right out of the box. There is no special feature to pay for. Plasma is also near instantaneous in response time so flawless in motion playback (like a CRT/tube). Again, that is inherent to the technology, you're not paying extra for it. So you actually get a superior image for less money by going Plasma. Something worth considering.

And don't fall prey to all the myths and lies about modern Plamsas. They no longer suffer burn-in. The good brands do not have shorter life spans (their sets are rated to like 100,000 hours which is equal to if not far beyond LCD sets). They are not power hogs, you can buy energy star certified Plasma sets now.

What's the best flat panel tv today LCD, LED, plasma?




Youk


I want a 50". Also to get cable service into another room without running cable I need the wireless, does it work with current cable box? Is the picture good?


Answer
LED is just a form of LCD.

In 40" and above Plasma wins out in image quality (motion playback, color, blacks, and contrast). LCDs can provide a bit greater brightness, but optimized TVs don't run super bright (it washes things out).

Not sure what you mean by wireless cable service. Are you talking Slingbox? Are you talking a wireless HDMI box? Wireless anything is what it is. It can be good, but its likely not going to be quite as strong as a wired solution.

LCD
( http://en.wikipedia.org/wiki/Liquid_crystal_display_television )

LCDs inherently suffer problems with motion playback. They suffer from motion blur (ghost trails). This is compensated for with the 120Hz/240Hz refresh rates. This feature helps out a lot, but is not 100%. And you are expected to pay a price premium for this add-on.

CCFL LCDs have muted colors, grey blacks, and so-so contrast. This is compensated for with the modern LED LCD. The LED backlight provides a massive jump in quality in regard to those 3 things. It brings it to a near Plasma/CRT/DLP level.

But in smaller sets, LCDs are the go to choice. So for the time being they will certainly still fill an important need there. And there also offer a certain sense of familiarity for many, as LCD computer monitors have been the norm for so long now.

Plasma
( http://en.wikipedia.org/wiki/Plasma_display )

Plasmas are inherently near instantaneous in their refresh rate. They are flawless in motion playback. While you might see some tagged with 480Hz or 600Hz sub-field motion drives, this is not a refresh rate. Its more so marketing to trick consumers (because of LCD's refresh rates). But in reality the technology just works quite differently (its more like your old CRT/tube set).

Plasmas inherently deliver vivid color, true blacks, and deep contrast. They do this right out of the box. They are a better overall image. And so you get a better image and perfect motion playback without having to pay anything extra.

Plasmas were not always this good a choice though, they have improved greatly over the years. But because of those past problems they do currently suffer from many myths and misconceptions. The main ones being that they suffer from burn-in, they are more expensive, they have shorter life spans, and they are energy hogs.

Modern Plasmas do not suffer from burn-in. After they are conditioned, you would have to actually work hard to accomplish a burn-in. To condition a new set all you need to do is keep the brightness and contrast turned way down for the first 100-200 hours of use. After that optimize and enjoy.

Plasmas are not more expensive than LCD rivals anymore. Any especially with LCDs needing high end features like 120Hz and LED backlights to compete. Those features often make LCD far more expensive to buy.

Plasmas do not have shorter life spans. The reputable brands will deliver models that are rated to 60,000 - 100,000 hours. That basically means that in 10 years time, at 8 hours a day, 365 days a year, you would only really see at most about a 10% loss in brightness. So the set is likely well useable for beyond 10 years.

Current Plasma models are now energy star certified. This means no more being power hogs against LCDs. They can match LCDs in this regard. But every model is different. There are some LCDs that still perform better, and there are some LCDs that perform much worse. It changes ever year as new models come out.




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Tuesday, April 1, 2014

What's the best flat panel tv today LCD, LED, plasma?




Youk


I want a 50". Also to get cable service into another room without running cable I need the wireless, does it work with current cable box? Is the picture good?


Answer
LED is just a form of LCD.

In 40" and above Plasma wins out in image quality (motion playback, color, blacks, and contrast). LCDs can provide a bit greater brightness, but optimized TVs don't run super bright (it washes things out).

Not sure what you mean by wireless cable service. Are you talking Slingbox? Are you talking a wireless HDMI box? Wireless anything is what it is. It can be good, but its likely not going to be quite as strong as a wired solution.

LCD
( http://en.wikipedia.org/wiki/Liquid_crystal_display_television )

LCDs inherently suffer problems with motion playback. They suffer from motion blur (ghost trails). This is compensated for with the 120Hz/240Hz refresh rates. This feature helps out a lot, but is not 100%. And you are expected to pay a price premium for this add-on.

CCFL LCDs have muted colors, grey blacks, and so-so contrast. This is compensated for with the modern LED LCD. The LED backlight provides a massive jump in quality in regard to those 3 things. It brings it to a near Plasma/CRT/DLP level.

But in smaller sets, LCDs are the go to choice. So for the time being they will certainly still fill an important need there. And there also offer a certain sense of familiarity for many, as LCD computer monitors have been the norm for so long now.

Plasma
( http://en.wikipedia.org/wiki/Plasma_display )

Plasmas are inherently near instantaneous in their refresh rate. They are flawless in motion playback. While you might see some tagged with 480Hz or 600Hz sub-field motion drives, this is not a refresh rate. Its more so marketing to trick consumers (because of LCD's refresh rates). But in reality the technology just works quite differently (its more like your old CRT/tube set).

Plasmas inherently deliver vivid color, true blacks, and deep contrast. They do this right out of the box. They are a better overall image. And so you get a better image and perfect motion playback without having to pay anything extra.

Plasmas were not always this good a choice though, they have improved greatly over the years. But because of those past problems they do currently suffer from many myths and misconceptions. The main ones being that they suffer from burn-in, they are more expensive, they have shorter life spans, and they are energy hogs.

Modern Plasmas do not suffer from burn-in. After they are conditioned, you would have to actually work hard to accomplish a burn-in. To condition a new set all you need to do is keep the brightness and contrast turned way down for the first 100-200 hours of use. After that optimize and enjoy.

Plasmas are not more expensive than LCD rivals anymore. Any especially with LCDs needing high end features like 120Hz and LED backlights to compete. Those features often make LCD far more expensive to buy.

Plasmas do not have shorter life spans. The reputable brands will deliver models that are rated to 60,000 - 100,000 hours. That basically means that in 10 years time, at 8 hours a day, 365 days a year, you would only really see at most about a 10% loss in brightness. So the set is likely well useable for beyond 10 years.

Current Plasma models are now energy star certified. This means no more being power hogs against LCDs. They can match LCDs in this regard. But every model is different. There are some LCDs that still perform better, and there are some LCDs that perform much worse. It changes ever year as new models come out.

Best 70 inch LED 3D Tv brand?




smoothjazz


I know this question has probably been asked 1000 times but I am really hoping to get the most current info possible as of today's date. 6-12-12

Can anyone please tell me what the best/highest regarded brand of LED 70 inch 3d tv's are?

I am looking to buy the following:

LED (no plasma... I play games etc...)

Very very little ghosting.

Good blacks.

3D

70 or so inches (65 is fine if nothing comparable in 70 inch size)

Price isn't a huge issue. I'd like to get something semi draw dropping. But it would be nice to cap it at about $4000?


I'd love to get everyone's thoughts?

Brand - model etc...

Thank you!!!!!



Answer
I would have recommended the Sharp Pro elite but they run at around $8,000 lol. I recommend the 65" LG LM6200. The design is very sleek and the PQ is good. Ghosting and crosstalk is very low (as with all passive 3D TVs). Since this TV values at under $4,000, I suggest you spend the extra money on a sound system. This TV has a 3D zooming feature that should work excellent with any speaker system (5.1 or better).




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Saturday, October 12, 2013

How long does it take for an LED TV to get a ghost image burnt into the screen?

led tv ghosting
 on Samsung BX2440X 24IN Widescreen LCD LED Monitor 1920X1080 5ms 5M:1DCR ...
led tv ghosting image



Moe


We bought a 56" Samsung Touch of Color LED TV a few days ago and I've been enjoying MW2 on it alot. But now my step dad is saying that I should limit my playing time on it because the game's stationary HUD might burn into the screen. I only play for about 2 hours a day and so does my sister, so there's about 4 hours of playing time a day. Is this enough to damage the screen?


Answer
Theoretically, no LCD TV (which is what yours actually is) will have a burn-in problem. That's a characteristic of older plasma TVs. LCDs with LED backlighting are the latest and the greatest, so there is very little likelihood that they'll ever suffer a burn-in problem.

What is the Cheapest Way to play a constant Video on a TV?




deathmore1


I am Building a Room and Making a LED Monitor or TV that will Constantly be Playing a Video of a aquarium. What I need is the cheapest way to get the video hooked up to the TV in HD. I was thinking of using a DVD player but that would be a pain so maybe a USB with the video on it but how would I hook that to the TV. Maybe a netbook or cheap desktop any help would be deeply appreciated.


Answer
If you did not buy a TV yet buy one that has a USB capable of HD video playback (mp4 or mkv video formats). The repeat video function should be build in, hopefully.

Depending of how much will the video of the aquarium change I recommend LED or LCD TV to reduce ghosting and burn-in issues.



More info on TV's check out the website in the source




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Monday, September 30, 2013

What is the difference between a flat plasma tv and a LED flat tv?

led tv ghosting
 on 3D TV Comparison : LED Vs. LCD Vs. Plasma � Go Rumors
led tv ghosting image



poorman p


I am considering purchasing a flat screen tv and would like to know any flaws in the two and would like to know how each works. PLEASE NO sales pitches or buyers guides, just info on their flaws, benifits, and quality.


Answer
Liquid Crystal Display (LCD)

 ⢠HD resolution from 1280x720 pixels through 1920x1080 pixels in a variety of panel sizes.
 ⢠LCD panel fabrication is a mature technology - now in 7th and 8th generation motherglass production for major fabs.
 ⢠LCDs are transmissive in operation, i.e. liquid-crystals emit no light themselves they simply "modulate" the amount of light passing through them. Essentially liquid-crystals act as shutters to control the amount of light from a (cold cathode fluorescent) backlight. The source of illumination is independent of individual liquid crystal pixels.
 ⢠Randomly-arranged liquid crystals pass light in their normally âoffâ state and block light in âonâ state.
 ⢠Color is produced in direct view, flat-panel LCDs using RGB micro filters and on projectors using a dichroic prism or spinning color wheel (the latter has rapidly fallen into disfavor among manufacturers.)
 ⢠Brightness is 3 to 5 times higher than comparably sized plasma displays; LCD can achieve brightness exceeding 400 nits at full white.
 ⢠Contrast ratio is approximately 1/4 to 1/2 that of plasma displays. Average ANSI contrast ratios measure between 147:1 and 170:1.
 ⢠Typical black level is undesirably high at 1.7 nits (eight times higher than conventional CRTs!) Dimmable backlights help to provide lower black levels and better contrast numbers.
 ⢠Predicted life of backlight is approximately 60,000 hours at 200 nits (not at full power mode)
 ⢠Improved backlight and color performance can be obtained using triluminous LED backlight technology; achievable brightness up to 450 nits and lifespan estimated up to 100,000 hours.
 ⢠LCDs consume less power than similarly sized plasma displays.
 ⢠LCDs weigh less than similarly sized plasma displays.
 ⢠Liquid-crystal response or switching time (LC twist times) is slow for video - between 8 ms and 16 ms; this can cause ghosting or smearing in video images containing fast motion.
 ⢠LCDs have trouble with low-level shadow detail resulting in "crushed" grayscales.
 ⢠Color saturation is inferior to emissive displays though LED backlighting can help.
 ⢠LCDs have higher pixel density than plasma panels.
 ⢠No image burn-in.
____________________________________

Plasma Display Panel (PDP)

 ⢠Plasma display panels (aka, PDPs) - monitors and TVs - are emissive devices, i.e., each individual pixel emits light. Image brightness is directly proportional to the intensity at which individual pixels are driven.
 ⢠Power consumption is 15-20% more than LCD for a given size.
 ⢠Weight is 20-25% higher than LCD for a given size.
 ⢠Mature technology since early 1960s.
 ⢠Each cell uses mixture of noble gases (neon, argon, etc.)
 ⢠AC discharge in each cell stimulates ultraviolet radiation causing color phosphors to glow and form picture elements; similar in principle to fluorescent tube operation.
 ⢠PDP TVs produce roughly 72 to 299 nits (21 to 87.4 foot-Lamberts) of luminance.
 ⢠Average ANSI contrast ratios measure approximately between 596:1 and 772:1.
 ⢠Typical black level is 0.21 nits (roughly the same as a typical CRT.)
 ⢠Waffle-like Deep Cell pixel structure and improved filters enhance contrast, black level, and luminous efficiency.
 ⢠Predicted life of phosphors is approximately 60,000 hours at 80 nits (not in full power mode.)
 ⢠Image burn-in is a serious concern; therefore PDPs are not an ideal choice for console gaming or computer use. (Note: some models utilize 'picture orbiting' and low power modes to combat image burn-in.)
 ⢠Plasma displays have trouble with high- and low-level shadow detail resulting in false contours.
 ⢠No problems with video containing fast motion; PDPs possess faster pixel switching times (full motion at 60 Hz) - progressive video sources are the best.
 ⢠PDPs consume more power and generate more heat than LCDs; PDPs get noticeably warm.
 ⢠Pixel pitch is rarely less than 0.8mm which requires a larger, more expensive panel to achieve true 1080p.
 ⢠PDPs have wide viewing angles (160 degrees H and V.)
 ⢠PDPs possess greater color saturation and are capable of achieving lower levels of gray.
____________________________________

Alternatives to LCD and plasma display technology:

Organic Light-emitting Diodes (OLEDs)
 ⢠Self emissive
 ⢠Low voltage
 ⢠Super thin displays
 ⢠Saturated, bright colors
 ⢠High contrast
 ⢠Ultra fast response times for video
 ⢠Very wide viewing angles

Surface-conduction Electron-emitter Displays (SEDs)
 ⢠Super-flat version of a CRT
 ⢠Wide color gamut and bright colors
 ⢠Black level and grayscale performance equivalent to modern CRT
 ⢠High brightness ~300 nits (~87.7 ft-L)
 ⢠Very high contrast ratios
 ⢠Fast response times for video
 ⢠Very wide viewing angles
 ⢠Low power consumption - uses about 30% less power than PDPs.
 

Will my LED TV (not receiver but screen component) work in the US?




Bob


I live in Norway currently. I will be returning to the US in 9 months. My Norwegian TV screen gave up the ghost. If I buy a European LED TV Screen will it work with my US equipment when I return to the States.


Answer
There are two issues
a) Power - It needs to work at BOTH 220V and 110 V (or you need a transformer..)
b) It has to be multi-standard , PAL/NTSC otherwise it will not work.




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Sunday, August 4, 2013

I need a HD tv that will resist image burn or image retention?

led tv ghosting
 on Samsung UN46C7000 un46c7000 led tv
led tv ghosting image



samurai_ar


I have a very old and used 2009 Phillips hd tv right now. I do ALOT of console gaming on it with friends. It gets 'image burn' or 'ghost images' very very easily now, even if the image is on the screen for only like two minutes. I have adjusted the brightness and contrast settings, but to no avail.

So Im thinking of getting a new lcd/led hd tv, 42". One that hopefully resist the image burn better. Will 120 hertz make a difference with the image burn since its a higher re-fresh rate?

And can anyone give me some good suggestions if they have any? Id like to keep it under $1,500 if at all possible.


Also unfortunately due to space constraints getting a computer monitor is out of the question.

Thank you!



Answer
Regardless of what brand you choose, there are things you can do to prevent image burn in on your set. The best thing you can do is turn down the contrast. LCDs and LEDs are better at preventing image burn in than CRT or plasma. Although the burn in issue isn't what it was years ago, there can still be a problem with it in the modern sets..
This link has a good article about it.

http://lifehacker.com/5982108/is-burn+in-still-an-issue-on-tvs-and-monitors

One way to repair image burn in is to create a screen saver that is nothing but a white screen. Hook up your computer to your TV and turn the brightness up as high as it will go. Let it run for about two hours and this will eliminate any burn in problem you have. Of course the best thing to do is not let it happen in the first place. I haven't been into video games for many years but if I did go back to playing them, I would go to Goodwill and buy a refurbished set just for video games. You can get a refurbished 32" LCD set for $125 with a 30 day guarantee.

What are your thoughts and opinions on this?




Mustangman


I got a Panasonic TC-P50S60 50" 1080p Plasma TV. Anyways, it has a slight crease on the back right side in the metal if you are looking at it from behind. It's not a dent, just a slight crease in the metal. The crease is very small but you can see it looking at it from a side angle. It does not affect the operation of the TV at all. This is the second one I have of its kind due to the fact that the first one I received had cracking noises going on. This one has much less of that and when it does it's really not even loud like the other. So the cracking issue is solved. However my main question is, would you consider that slight crease a defect and if you got the TV and it had that slight crease would you return it and try to get another one? Just wanted to get some second opinions. If I were to return it again it would be my third one of this kind. I'm wondering if I'd look foolish returning it for that when everything else works. Just wondering what you guys would do. Thanks in advance for the answers!


Answer
Never feel foolish for returning an item. I returned my Mac Book Pro Retina twice because of manufactured defects. I would return it and begin searching for a LED TV NOT a Plasma TV. My cousin purchased a Plasma TV a few years back and I told him to return but he never did. Now he complains about how the "ghost" of his playstation home screen being visible is stuck on his TV and wont go away. If you watch a lot of news, or a specific channel that has a logo on the bottom side of the screen, if that stays there for a while, its "ghost" will remain there.

I hope this was helpful.




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