Think i have more or less the same problem, i would like to send/display an image on the lcd display. This image will be used as a mask. So we would like to display the image full-screen borderless, no titlebar etc. on the lcd display. Think of it as running in 'game-mode' or playing a movie on your normal monitor. The image will have to be updated during the measurement, so for that we will probably use a matrix. But so far i havent figured out yet on how make this full-screen display yet.