ATTENTION: Android 4.1.2 and Android 4.2 have a BIG bug for screen on.If turning on the screen, it must keep screen on until setting's screen timeout is up. So now I use a plugin app "screen off" to force screen off for waking up timeout.

Feel the pain in the neck when pressing the power button?
Each time you open the screen, you must be tired with pressing the power button?
You can try this software that allows the screen to
automatically open.

Features:
Turn screen on by g-sensor
Turn screen on by proximity sensor
Turn screen on by touching the proximity sensor twice on the devices
Pause function by notification/shortcut/widget
Battery save for this app
Logging for working status
Auto Pause at sleeping time.
Auto Stop/Start at discharging/charging..(It can not work with "Auto Pause at sleeping time".)
Enable/disable record log.
wireless charging support

If you use protective sleeve or protective cover,
you can wake up screen automatically whenever you open the protective cover or take out from the protective sleeve.

This application uses sensors to wake up the device.

For g-sensor(Reliability 90%+): When the screen is off, pick up the device horizontally, then the screen would auto wake up.

For proximity sensor(Reliability 95%+): When the screen is off, approach the sensor, then the screen would auto wake up.

G-sensor may need to connect the USB or power or to open Screen Off Wakelock to work properly. Otherwise, on some devices, press the volume keys beforehand to make the device leave deep sleep, and then it will turn auto screen on by picking up the device.

Proximity sensor even in deep sleep is also easy to wake up the device, so it is recommended to use.

Using the history to observe the failure of Auto Screen’s behavior.

Widget can start/pause/enable app. And if the app is killed by out of memory, it would let the app be restarted faster than normal situation.

ISSUES:
1.there is no guarantee that the application can be used in every device.
2.Some of Samsung devices may not use g-sensor feature because it doesn't let g-sensor on in the screen-off.
3.Android 4.2 may not work properly.

Thanks for Gareth Lewis correcting English translation.
Thanks for Kayoko Sawada helping Japanese translation and correcting English translation.
Thanks for Arsham Mergasemi correcting English translation.
Thanks for Андрей Кравцов helping Russian language
Thanks for J.J.Ponce helping Spanish language
Thanks for Ozan Çakar (XanthiN) helping Turkish language
Thanks for Dario Della Giovanna helping Italian language