diff --git a/gui/Android.mk b/gui/Android.mk
index 33e870f..d9cae7f 100755
--- a/gui/Android.mk
+++ b/gui/Android.mk
@@ -119,6 +119,9 @@
 ifeq ($(AB_OTA_UPDATER),true)
     LOCAL_CFLAGS += -DAB_OTA_UPDATER=1
 endif
+ifeq ($(TW_SCREEN_BLANK_ON_BOOT), true)
+    LOCAL_CFLAGS += -DTW_SCREEN_BLANK_ON_BOOT
+endif
 
 LOCAL_C_INCLUDES += \
     bionic \
diff --git a/gui/blanktimer.hpp b/gui/blanktimer.hpp
index fe7b77c..6aca270 100644
--- a/gui/blanktimer.hpp
+++ b/gui/blanktimer.hpp
@@ -42,10 +42,11 @@
 
 	bool isScreenOff();
 
+	void blank(void);
+
 private:
 	void setTimer(void);
 	string getBrightness(void);
-	void blank(void);
 
 	pthread_mutex_t mutex;
 	enum State { kOn = 0, kDim = 1, kOff = 2, kBlanked = 3 };
diff --git a/gui/gui.cpp b/gui/gui.cpp
index 2a36fec..da35d23 100755
--- a/gui/gui.cpp
+++ b/gui/gui.cpp
@@ -755,6 +755,12 @@
 	gr_init();
 	TWFunc::Set_Brightness(DataManager::GetStrValue("tw_brightness"));
 
+#ifdef TW_SCREEN_BLANK_ON_BOOT
+        printf("TW_SCREEN_BLANK_ON_BOOT := true\n");
+        blankTimer.blank();
+        blankTimer.resetTimerAndUnblank();
+#endif
+
 	// load and show splash screen
 	if (PageManager::LoadPackage("splash", TWRES "splash.xml", "splash")) {
 		LOGERR("Failed to load splash screen XML.\n");