On occassion when the tv is on, there is a change in the pixel color on top of the tv screan which displays a lack of color and uniformaty in the pixel on the screan. It's usually about 5 inches by 12 inches wide. The tv needs to be shut off because I'm noticing it's hot in those areas where the pixel discoloration appears.It display a white to green color on the affected area.
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some computers will fade the screen automatically when on battery power. on windows systems, you can change those settings (normally) by going to Control Panel -> Hardware and Sound -> Power Options -> Edit Plan Settings (beside the option in use) -> change advanced power settings -> Display (see screen shot)
Cause of screen burn typically is pixels are no longer showing full range of color. Typically a shop would cycle screens or blocks of very bright colors alternating colors to unstick any pixels not showing full range of some color. Setting tv back to factory default then adjusting could help also turning up brightness. Change color settings from cool to warm could help. Could also be a refresh rate. Verify tv is set to display at same rate as input device like cable box set to output 1080i while tv native is 720p. Just because there is a pic doesn't mean they are synced.if tv has to convert signal from 1080i to 540i then resize to fit 720p tv it may slow refresh rate tv is trying to display progressive scan image but not enough data is coming in so it redisplays previous image on every other line.and new data on every other line.
solution is check output video settings of source to match native resolution of tv. Hd cable box this is common as tech sets output to high resolution 1080i most inexpensive tv are 720p
click start control panel display desktop you can select a different desktop from the drop down list or a browse button where you can select different picturesthis may vary depending on your operating system also you can change the settings for more or less pixels or from the drop down list pick the appropriate level of color range or troubleshoot also select advanced then general dpi normal size,larger size or custom settings always click APPLY after making any changes hope this helps
sounds like you have some lines of dead pixels, is this an LCD screan or a plasma screen? if it's LCD then it is dead or stuck pixels, check your owners manual and there should be a section on stuck pixels if its and LCD tv.
There are some that say sending strong images that change from to color to color can help unstick them, but I say only dissassembly and cleaning of the contacts (there should be 2 ribbon cables, one for top, one for side) that probably got dust in it. Call it in under warranty if at all possible.