Could you please add an option to turn off the screen without covering the proximity sensor?

[shuangye]

I use ProximityService + Auto clicker + Camera App to capture plants growing as image sequences and then encode into timelapse movies.
I want to turn off the screen during the image capturing, to prevent the OLED screen being burned.
I have to find something to cover the Proximity sensor.
Could you please allow to turn off the screen withoug covering the proximity sensor, and touch anywhere on screen to turn it on again?