One Problem if the older versions was that i used an LDO to power the screen. However i underestimated the power consumption and the LDO constantly overheated. So this version got a buck converter.

Using a simple TPS4020 we can generate our deeded 5V with up to 3A.

Also you can power the board also with 24V eliminating the need for beefy 5V supplies and makes power distribution easier.

Running the screen in full tilt (all pixels white, maximum brightness) is now possible.
The DCDC doesnt even get warm.
And before you ask. The brighter stripe in the middle is due to the slow phone camera this is shot with. in reality you wont see any flickering with your eyes.