diff --git a/src/display.rs b/src/display.rs
index cafcc75..7ec99b6 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -23,7 +23,6 @@ use st7365p_lcd::{FrameBuffer, ST7365P};
 
 const SCREEN_WIDTH: usize = 320;
 const SCREEN_HEIGHT: usize = 320;
-const REFRESH_INTERVAL_MS: u64 = 20;
 
 pub static DISPLAY_SIGNAL: Signal<ThreadModeRawMutex, ()> = Signal::new();
 
@@ -52,6 +51,8 @@ pub async fn display_handler(
     framebuffer.draw(&mut display).await.unwrap();
     display.set_on().await.unwrap();
 
+    DISPLAY_SIGNAL.signal(());
+
     loop {
         DISPLAY_SIGNAL.wait().await;
 
diff --git a/src/main.rs b/src/main.rs
index 41fee93..684d8d0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -73,7 +73,6 @@ async fn main(_spawner: Spawner) {
                     }
                     DISPLAY_SIGNAL.signal(());
                 }
-                Timer::after_millis(10).await;
             }
         },
         display_handler(spi1, p.PIN_13, p.PIN_14, p.PIN_15),