diff --git a/twinmax/display.cpp b/twinmax/display.cpp
index caef060..e1b14ec 100644
--- a/twinmax/display.cpp
+++ b/twinmax/display.cpp
@@ -21,10 +21,12 @@ void temporary(){
 	display.begin();
 
 	// display.clearDisplay();
+	display.clear(true); // no need to call display() after to apply
 
 	// display.drawPixel(x, y, SSD1306_WHITE)
 	// display.drawPixel(x, y, SSD1306_BLACK)
 
+	// display.display()
 }
 
 void Display::send_command(const uint8_t c){
@@ -121,4 +123,35 @@ void Display::begin(){
 	TRANSACTION_END
 
 	return;
+}
+
+void Display::clear(){
+	TRANSACTION_START
+
+	static const uint8_t PROGMEM dlist1[] = {
+		DSP_PAGEADDR,
+		0,    // Page start address
+		0xFF, // Page end (not really, but works here)
+		DSP_COLUMNADDR,
+		0     // Column start address
+	};
+	send_commands(dlist1, sizeof(dlist1));
+	send_command(_width - 1); // Column end address
+
+	_wire->beginTransmission(_i2caddr);
+	_wire->write((uint8_t) 0x40);
+	uint16_t count   = _width * ((_height + 7) / 8);
+	uint8_t  written = 1;
+	while(count--){
+		if( written >= WIRE_MAX ){
+			_wire->endTransmission();
+			_wire->beginTransmission(_i2caddr);
+			_wire->write((uint8_t) 0x40);
+			written = 1;
+		}
+		_wire->write(0);
+	}
+	_wire->endTransmission();
+
+	TRANSACTION_END
 }
\ No newline at end of file
diff --git a/twinmax/display.h b/twinmax/display.h
index 768e85b..dee7f42 100644
--- a/twinmax/display.h
+++ b/twinmax/display.h
@@ -41,6 +41,7 @@
 		public:
 			void Display(const uint8_t width=128, const uint8_t height=32, const resetPin=-1);
 			void begin();
+			void clear();
 
 		protected:
 			void send_command(const uint8_t c);