diff --git a/Power_Pico/User/GUI/screens/ui_mainPage.c b/Power_Pico/User/GUI/screens/ui_mainPage.c
index 8f0282a..18892a1 100644
--- a/Power_Pico/User/GUI/screens/ui_mainPage.c
+++ b/Power_Pico/User/GUI/screens/ui_mainPage.c
@@ -21,8 +21,6 @@ static lv_obj_t * ui_ButTime = NULL;
 static lv_obj_t * ui_LabelTime = NULL;
 static lv_timer_t * _flush_timer = NULL;
 
-static uint8_t timecount = 0;
-
 // other funtions
 
 #include "key.h"
@@ -130,11 +128,6 @@ static void set_val_cur_label(float voltage, float current)
 
 static void _flush_timer_cb()
 {
-    timecount++;
-    if(timecount >= 2) { // 1s
-        timecount = 0;
-        ui_full_screen_refresh(ui_HomeScreen);
-    }
     float voltage = 0.0;
     float current = 0.0;
     current = ui_get_current();
@@ -264,6 +257,5 @@ void ui_main_screen_init(void)
 
 void ui_main_screen_destroy(void)
 {
-    timecount = 0;
     lv_timer_delete(_flush_timer);
 }
diff --git a/Power_Pico/User/GUI/ui.c b/Power_Pico/User/GUI/ui.c
index 2618a53..123fb8f 100644
--- a/Power_Pico/User/GUI/ui.c
+++ b/Power_Pico/User/GUI/ui.c
@@ -54,7 +54,8 @@ Page_t pages[] = {
  */
 static void main_timer_cb(lv_timer_t * timer)
 {
-    // do nothing
+    // 1s 刷新一次全屏，防止有时候不知什么原因的LCD刷新错误（需要后续找到问题从根本解决）
+    ui_full_screen_refresh(ui_HomeScreen);
 }
 
 ////////////////////////// Animation //////////////////////