Curtis LT7029 - Manual (Page 11)

7.2.2 Standby screen
Click “Screen timeout” on Display settings and will show as below:
Select the time and the screen will shut down automatically when unit standby.
Note: In the video mode, the screen auto-shut down is not available..
7.2.3 HDMI
Device supports LCD and HDMI 1080p mode. The system default at LCD.Before
connecting device to HDMI equipment by HDMI cable, please default at HDMI model.
Click “Display” on Settings menu and click “Output settings" will show as below:
Click HDMI and device screen will show on HDMI equipment. After finishing HDMI