Daily board is an application installed on your tablet, that is showing time, slideshow of photos, news, weather, battery level, calendar, schedule etc. Depending on tablet brand and Android version, it can be disabled by using a different methods. You can try to turn off Daily board in:
Settings > Home screen & wallpapers
Quick settings panel
Alternatively, you can go to Settings > Apps & notifications. You have to show all installed applications, then open Daily board and tap on Force stop or Uninstall if you want to remove it from your tablet.