Screen

Well I noticed tonight that after plugging in my phone to charge it never dimmed. The background was on the phone for over an hour. Can the image be burnt into the screen if it sits to long?

very unlikely, and it would take A LOT longer than an hour to burn in an image.

Nope, simply not possible. The display on the Storm is LCD and Plasma screens are the only ones capable of having images burnt onto the screen. Usually you only see this if you go to a sports bar and they've had a certain channel on the TV for years so you can see the ticker burnt into the bottom of the screen. Bottom-line...not possible, and even with plasma it is very difficult to do.

I agree with AppState Addict, it is an LCD and will not burn.

By the way, this question has been asked before, so you may find more information by doing a search of the forum.

Originally Posted by AppStateAddict

Nope, simply not possible. The display on the Storm is LCD and Plasma screens are the only ones capable of having images burnt onto the screen. Usually you only see this if you go to a sports bar and they've had a certain channel on the TV for years so you can see the ticker burnt into the bottom of the screen. Bottom-line...not possible, and even with plasma it is very difficult to do.

that is not ture. LCD panals can get burn in. most people don't see it happaning because it takes a lot longer to happen. i'v seen it first hand. but it would take weeks of the same image to burn in.

Gene, sorry but that's not true. Where did you read that?

This is per a company selling a DVD screen-saver to combat "burn-in" on plasma screen TV's:
"Not only plasmas are susceptible to burn-in effect. Just about any phosphor-based screen, whether plasma, tube rear-projection (but not the modern LCD, LCoS or DLP based rear-projection screens), and even CRT TVs may be affected. Burn-in occurs because of uneven wear of phosphors in your display. The least lighted parts of your screen will emit more light than those parts that were displaying a bright image, thus leaving a visible after-image." I can't post URL's yet but search for plasmasaver and you will see that on their website.

On the other hand...LCD uses a completely different technology and the notion of "burn-in" isn't as universal on that technology. Plasma uses phosphors to generate light and color for a picture while LCD uses a white light behind the screen to generate the light and then crystals and polarizers to filter that light to generate the colors.

But with LCD technology there is what is called "image persistence". This is similar but not identical to "burnt-imaging" on plasma. The crystals do have a memory and they can be "stuck" in a given place if an image is locked in long enough. With that being said, it is based on polarization, so it can be reversed by enough of an electrical charge and is not a permanent issue as is the case with plasma. And, further, an image or icon would need to be set in one place with absolutely no change of that screen for a ridiculously long period of time for this to even occur, much longer than a few weeks. The whole lure of LCD screens is that they are virtually immune from this issue.

So, Train...you are quite alright. You have nothing to worry about.

i did not read that anywhere... as i said first hand experiance. i used to sell tv's less then a year ago and we had two LCD tv's with permanant burnin. it happend after we didnt turn off the tv's over night for over a month with a dvd player staying on the menu screen. you can call it differently but visualy it is identical. as i said it takes a very long time to happen which is why many people don't think it even exists. so it's usualy nothing to worry about.

I understand that. But it is not fair to say it is visually the same, as it is, in fact, completely different. LCD and Plasma are completely different technologies, you can read my post above for explanation. But the problem, while it may look the same on two screens, LCD and Plasma, are diametrically different. There is nothing called "burn-in" with LCD screens, as I mentioned above, because that's not how the technology works and it is not a permanent problem. I realize you may have seen a faint icon or image left on a LCD screen, but that can be reversed as LCD utilizes polarized crystals and over time they will return to their neutral state with any charge. With Plasma, phosphors generate light and color. So, when a screen is lit unevenly, like a picture in widescreen, it is physically "burnt-in". But, you are right in the fact that you would need some sort of icon or image in place on an LCD screen to have what is called "image persistence". The image would have to not be changed at all over a long period because if the polarized crystals are re-arranged at all it prevents such an issue, which is what makes LCD so attractive in this respect, it is virtually immune from this problem because there is next to no consumer application where you would have one image set on a screen for such an extended period of time.

Why didn't your phone dim?

Posted from my CrackBerry at wapforums.crackberry.com

I use to think this until I had to deal with burn in right in front of my face. I left my screen off for a week, tried fixes, everything, and this so call image retention, would not go away. Here is a pic that I took to show the issue. On close inspection you can see the image that is burned in is the windows bar. What you can't see is the image of the min/max,X buttons (Pic won't show this but I can see it) that was burned in. So maybe it rarely happens, but it does happen. (Of course this is a display and not a phone, so differences apply)

Originally Posted by AppStateAddict

There is nothing called "burn-in" with LCD screens, as I mentioned above, because that's not how the technology works and it is not a permanent problem.

Just checked it (its been a year now), and same image is still there. I know the technology is different between the two, but visually its the same with the same permanent result if you don't take precautions.

Yeah we have a LCD a work that the top and bottom of the screen always displays the same information. When I switch to a different display it still shows that information as if it has been burned in. Again I think the key here is it takes a very long time. And they don't called it burned in on LCD's. They call it LCD Image Persistence. Google it.

Windmill, yes you are right about that problem being called image persistence. But it is not permanent! In your case, this is due to leaving something in place for an extended period of time in a work environment. I can't think of a consumer application other than on a computer screen, possibly with the task bar, having the same issue. The image would eventually go away if you didn't use it in that application anymore. The problem only gets exacerbated when you keep displaying that image on the screen, even if it isn't for the same long periods. It would take awhile, but eventually it will go away. Once again, LCD is nothing more than polarized crystals and are moved by electrical charge. So, enough of a charge, for a long enough period of time and it will go away. While burn-in and image persistence might visually look similar, burn-in is a permanent problem, while the latter is not.

Originally Posted by AppStateAddict

Windmill, yes you are right about that problem being called image persistence. But it is not permanent! In your case, this is due to leaving something in place for an extended period of time in a work environment. I can't think of a consumer application other than on a computer screen, possibly with the task bar, having the same issue. The image would eventually go away if you didn't use it in that application anymore. The problem only gets exacerbated when you keep displaying that image on the screen, even if it isn't for the same long periods. It would take awhile, but eventually it will go away. Once again, LCD is nothing more than polarized crystals and are moved by electrical charge. So, enough of a charge, for a long enough period of time and it will go away. While burn-in and image persistence might visually look similar, burn-in is a permanent problem, while the latter is not.

Can you give me a understanding as to why (after a year) my image persistence on my LCD display has not went away?

Please inform me of your usage and I might be able to help. For example, if you have a Windows PC and you get the task bar at the bottom of the screen "stuck" with image persistence. Even though you may change the images in the screen from time to time, that task bar still sits there and accordingly, the crystals in that portion of the screen don't move. So, if you continue to use the screen in the same manner, even if less frequent, the crystals have a "memory" and continue to congregate in that portion of the screen, making the image "persist". Now, if you used the screen for a completely different application, i.e. watching movies or TV as opposed to being a computer display, then over time those crystals would move back to their neutral state. So, when you have a computer display with a given icon or toolbar in a given area of a screen and you continue to use it in that application, even if less frequent, it will continue to show until you stop using it in that manner. Think of it is a force of habit for the display. Just as every person has habits in given situations, so do these crystals in LCD displays.

I'm clear on the principles of image persistence, and I understand what your saying. My issue is that the facts don't match up with the evidence in my case.
My screen has been in storage for a year, an after I turned it on the same image persistence is still there (again its been off for a year). This is what I don't understand. All the technical evidence states that this isn't possible, but here is image persistence that is still persistent on my display. Everywhere I've research this issue states it shouldn't do this, but my screen is laughing :D at me, because its the proof that all my research was wrong.

HAHA This is one of those times where two people need to be in the same room with the aforementioned screen to truly tackle this problem... it's truly frustrating! I actually think I might have nailed it though when you say that the display has been turned off for over a year. What actually needs to happen is you need to use the screen! I know that sounds counterintuitive, but the crystals that make up LCD displays are polarized. They are arranged by electrical charge. So, to fix the problem you need to use the screen, but not in the same application as before, a computer display. If you used the screen to watch TV for instance, over a period of time the polarized crystals would return to their neutral state. This would be because you would be using the crystals over the entire screen to display numerous colors and moving images. This persistence happens when the crystals don't change, so naturally to undue to it you must force the crystals back into use. It is equivalent to muscle apathy. If you break a bone and put it in a cast, the bone and muscle are weak initially after removing the cast, but over time they gain back their strength and return to normal. Now if you turned the screen back on and continued to use it as a computer display, obviously the problem would only persist. I definitely understand your problem, but I promise it is reverseable!

Hmmm.....I shall put it to the test. With a spare computer and a shuffle of screen savers left on continuously. I will update the status some time from now. Thanks.;)

Originally Posted by Jascias

Hmmm.....I shall put it to the test. With a spare computer and a shuffle of screen savers left on continuously. I will update the status some time from now. Thanks.;)

The one article I read said to create a white iamge and leave it on the screen for an extended period of time. Worth a shot :)

Great idea Windmill! I do believe over time it will fix itself. Now, precisely how long I have no clue!:D