Have you experienced this display problem (Fading out)

My nook ST display looks like it has worn out or faded out.The (black) colour seems worn out , dimmed and heavy ghosting.(even after shut down, see the attached images).I can recover it bit by refreshing the scree (everytime I turn a page) but it is annoying and distracting.And this happen after about 5 min of booting and soon after nook start it look ok (but dimmed a bit)

This started to happen about a month ago and I have been using my Nook for 2 years now without any problem.

To solve this I restored it using the Nook Manager but the problem remains.

Please give me your views and advice.I am suspecting a hardware problem.

Note I don't use any apps like NoRefresher or FastMode.
[I'm new to this thread posting and apology for mistakes]:confused:

Thank You in advance

https://my.pcloud.com/publink/show?c...cOvKWHc7gwGIfy
https://my.pcloud.com/publink/show?c...e3suMgH0CrGBR7
https://my.pcloud.com/publink/show?c...8B9UtopRqExIW7
https://my.pcloud.com/publink/show?c...15BRzBA0J82Pey

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