PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

		boolean screenOn = pm.isScreenOn();

		if (!screenOn) {

			PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP

					| PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "bright");

			wl.acquire();

			wl.release();

		}