Android - Turn off display without triggering sleep/lock screen - Turn on with Touchscreen

Question

I have been trying to find a way to turn off the display, and wake up from the user touching the touch screen.
The device is in an embedded environment where the device

Answer 1

You can do one thing that is Acquire Partial Wakelock and turn the Screen Off using :

PowerManager.WakeLock wl = manager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Your Tag");
wl.acquire();
WindowManager.LayoutParams params = getWindow().getAttributes();
params.screenBrightness = 0;
getWindow().setAttributes(params);