It looks to be just a color bar test screen. Large screens like that are technically smaller screens with no border linked together so they have to make sure the image is aligned, and colors match for the panels. Its quite a common screen on professional video equipment.
It looks to be just a color bar test screen. Large screens like that are technically smaller screens with no border linked together so they have to make sure the image is aligned, and colors match for the panels. Its quite a common screen on professional video equipment.