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I have a panasonic 55 inch curved,3d 4 k tv,it wasnt cheap either,and since it was a year old,there were a few blue,blotches,and over time has got worse,tried everything,it seems like its a daulty hdmi,or something,mine done it using a firestick,its 3 years old now,and still havent a clue how to solve it
prayfordeath2002 Irregular “blotches etc., are most often caused by a bad panel. It could be an issue related to your main board or even your T-con board. Again, a lot will depend on what those blotches look like. Try every other video source input (component/composite/coax etc.) and see if that changes anything. If so you know that the issue is most likely related to the main board. We need to know your TV’s exact model number. Also, post some good pictures of what your screen shows with your QUESTION. That way we can see what you see. Adding images to an existing question
Set up a computer monitor or TV with a degauss feature close in front of your TV screen and activate the degauss feature. This works best with a similar size screen. You may need to do it several times for any effect. or Purchase a degauss coil online or at your local electronics store. Turn on the TV and the coil, with the coil in front of the TV. Move away from the screen slowly while moving the coil in circles to cover the entire screen. Turn the coil off once you reach 4 ft. distance from the screen. Use the TVs built-in degaussing feature several times. Turn the TV and press the degauss button if necessary. Turn the TV off and let it cool down for at least 20 minutes. Turn it back on and repeat as needed. Warnings Keep all magnetic recording devices such as hard drives, memory media, VHS and cassette tapes away from the degaussing coil. https://itstillworks.com/12112123/how-to…
