http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/ Engadget HD Comments for LCD and plasma burn-in advice http://hd.engadget.com/media/feedlogo.gif http://hd.engadget.com en-us Copyright 2009 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 23rd 2007 7:36PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
LCD's don't get burn in. They can get retention. This occurs because LCD's rely on the twisting of a crystal compound. IF left in the same position for too long the crystals have a problem relaxing. How long is this too long you as , 15-120 minutes.

Thats right! It happens ALL THE TIME on computer LCDs. There is substantially no difference between a computer LCD display and a TV display.

The crystals never loose their ability to untwist. So even if you show the same image day after day for years the display can go back to the reference position. Unless it is damaged by uv or temperature exposure .

The severity of the problem is what changes. Typically it just manifests as slower than normal response time.

On tv's the image is always changing so you are very unlikely to see this problem manifest as long as you change the channel once every few hours.


Really this has always been happening it is absolutely not permanent. It can be 'fixed' by shutting off your TV or playing a movie. Any constant image be it white, black or blue will cause the pixels to get stuck in their new position, just maybe in a uniform fashion.

Brightness has no effect on this. No setting on the set will change this unless one happens to cause the pixels to dither slightly and randomly.

This is NOT the same for plasma. Plasma get honest to goodness burn that will not go away in LCD's can not unless you use a UV source to damage them.



]]>Aug 23rd 2007 7:54PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
Your advice isn't great either. Turning down the brightness on an LCD will do nothing to save the panel, as the brightness is the brightness of the backlight, and the image retention ("sticking") is on the panel. The panel would suffer from sticking even if the backlight were completely off.

Also, the idea that burn-in is most critical in the early stages of a plasma's lifetime is just false. Burn-in happens on plasma because as the pixel is used, it gets dimmer (this is why plasmas get dimmer over time). Now, this is a decay cycle, like radioactive half-lives. If the panel is new, and a pixel gets "burnt", the pixel may be (let's say) half as bright as the rest of the panel. But if the panel is older, the whole panel will be half brightness and the burnt pixel will be 1/4 brightness. In that way, the burn in later is of lower magnitude.

But in the end, your eyes see light exponentially anyway. If a pixel is half as bright as the rest, it looks just as bad, even if the rest is down to 1/8th brightness and the burnt one is 1/16th.

The only way to prevent burn-in on a plasma is to be careful about what you display. If you get burn-in, the only way to remove it is to burn the non-burnt pixels a bit more to come down to the brightness of the burnt ones (burn with an inverted image). It sounds drastic, but given how minor burn-in usually is on plasma, it's not a big deal.

If your LCD gets image sticking, just play some constantly moving images for a while. Play a long movie on loop. The statement above that you need to run the unstick material for about twice the time as you ran the material that made it stick is a good guideline, modify as appropriate.

In general, a good LCD will not stick noticeably unless you show the exact same image for 30 mins or more. In more normal use you don't need to sweat it.]]>Aug 23rd 2007 8:42PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
Really? Your statement is just the opposite of what Panasonic says!

Panasonic's website gives an introduction to plasma use and "break in" of the early stages of your new plasma. They specifically give certain settings not only for the first 100 hours [use lower contrast, keep all content to full screen [1:78:1 with or without gray bar modification], avoid static images, etc, but for the next 900 hours also (similar settings but contrast can be increased some).

Also, you should never use the "dynamic" or "vivid" picture setting on a plasma, unless you have the brightness and contrast at very low settings.

As for anti burn-in protection, I recently learned that all 2007 Panasonic plasmas have the built-in feature with the pixels moving ever so slightly, and never fully stationary.

One guy's recommendation for the first 100 hours, is to play the PLANET EARTH HD-DVD or Blu-ray disc [1:78:1 native ratio] in a loop for about 8 to 10 hours a day, for around 10 days. Then your new plasma is broke-in, and you can increase the brightness or contrast to a mid-setting for the next 900 hours. ]]>Aug 24th 2007 3:16AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
You will also find more information at the HD Guru™ website. Thanks.

The HD Guru™]]>Aug 23rd 2007 9:32PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 24th 2007 8:07AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 23rd 2007 10:45PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
I bought an LCD monitor a few months ago and had to return it the next day for an xchange, due to 2 stuck pixels.. They were green and one was just off center, bugged the hell outa me.. Replacement was flawless..


]]>Aug 24th 2007 1:01AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 24th 2007 6:24PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 24th 2007 2:04AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 24th 2007 2:28AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/Aug 24th 2007 9:46AMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
Rick]]>Aug 24th 2007 4:23PMhttp://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/http://hd.engadget.com/2007/08/23/lcd-and--plasma-burn-in-advice/
1.3 Warning concerning stationary images on the TV
screen
A characteristic of LCD Panels is that displaying the same image for a
long time can cause a permanent after-image to remain on the screen.
Normal use of the TV should involve the showing of pictures that
contain constantly moving and changing images that fill the screen.
Examples of stationary images (this is not an all-inclusive list, you may
encounter others in your viewing):
- TV menus;
- Black bars: when black bars appear at the left and right side of the
screen, it is recommended to change to a picture format so that the
picture fills the entire screen;
- TV channel logo: present a problem if they are bright and stationary.
Moving or low-contrast graphics are less likely to cause uneven aging of
the screen;
- Stock market stickers: presented at the bottom of the TV screen;
- Shopping channel logos and pricing displays: bright and shown
constantly or repeatedly in the same location on the TV screen.
Examples of still pictures also include logos, computer images, time
display, teletext and images displayed in 4:3 mode, static images or
characters, etc.
ç Reduce contrast and brightness when viewing.When the same image
is displayed for 10 minutes, brightness will be reduced automatically.
Once burn-in occurs it will never disappear completely.
) Carefully pay attention to these remarks.The warranty does not
apply to damage caused by not taking into account the above
mentioned warnings on stationary images.]]>Nov 20th 2007 10:00AM