Samsung has been pushing for foldable devices in the past year, but it looks like the company is also considering the gaming handheld market. This latest patent is consistent with what was revealed about the Flex display in late 2018. What is interesting about this patent is the lower edge of the device that folds upwards to reveal gaming buttons like a directional pad and six buttons.
https://www.notebookcheck.net/Samsung-could-release-a-foldable-gaming-phone-soon.402136.0.html