I'm playing in the same corner right now but I want to turn off the blank during the day and let it happend off working hour so I have the info on hand, here it is.
To view current settings:
$ xset q
prefer blanking: yes allow exposures: yes
timeout: 0 cycle: 600
DPMS (Energy Star):
Standby: 600 Suspend: 600 ...
There are many touschscreens for the Pi that use an I2C interface.
Pimoroni's HyperPixel uses a FocalTech FT6236. Datasheet for the controller.
AdaFruit's PiTFT 2.8" uses a FocalTech FT6206.
Both of these are capactive multi-touch, and use drivers that are already in the Raspberry Pi OS. Check out the DTS file to see which driver is used, how it is ...