Good news is that an update is in works again to take care of this issue. This was communicated by Lumiahelps in a series of tweets to a Reddit user. Though, if your issue seems anything like this, you can try our tutorial for making it better.
@DJDBgr 1/3 We have been made aware of an issue where the displays on a limited number of Lumia 930 units are exhibiting discolourations.
— Lumia Help (@LumiaHelp) December 29, 2014
@DJDBgr 2/3 This phenomenon is due to the performance of the display in certain brightness conditions. However, we have identified
— Lumia Help (@LumiaHelp) December 29, 2014
@DJDBgr 3/3 the root cause and are currently working on a software update that will deliver improvements. ^AD
— Lumia Help (@LumiaHelp) December 29, 2014
Via: Reddit
Thanks John for the tip. Cheers!!