An old drawing from the archives, which we hereby archive here. Drawn with Schaeffer front panel designer. Requires a further PCB-bracket that attaches to the 230x100 M3 holes and has screws that reach the back of the 7" LCD module.
For permanent display screens (e.g. digiclock) run by a Raspberry Pi it is useful to disable screen blanking and the screen-saver. These two config-edits seem to work: https://www.raspberrypi.org/forums/viewtopic.php?t=57552
In /etc/xdg/lxsession/LXDE-pi/autostart we want
@xset s noblank @xset s off @xset -dpms
And then in /etc/lightdm/lightdm.conf
xserver-command=X -s 0 dpms