diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index 25c54ed..5d1bc0c 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -107,8 +107,6 @@ namespace JoyD.Windows.CS
         {
             get
             {
-                if (DesignMode || this.IsDisposed || this.Disposing || pictureBoxTemperatureDisplay == null || pictureBoxTemperatureDisplay.IsDisposed)
-                    return null;
                 return mRealTimeImage;
             }
             set
@@ -133,7 +131,7 @@ namespace JoyD.Windows.CS
                     return;
                 
                 // 检查是否在有效状态下操作
-                if (this.IsDisposed || this.Disposing || pictureBoxTemperatureDisplay == null || pictureBoxTemperatureDisplay.IsDisposed)
+                if (this.IsDisposed || this.Disposing)
                 {
                     // 如果窗口已关闭或正在关闭，释放传入的图像
                     value?.Dispose();
@@ -146,11 +144,9 @@ namespace JoyD.Windows.CS
                     try { mRealTimeImage.Dispose(); } catch { }
                 }
                 
-                // 设置新图像
+                // 只设置mRealTimeImage，不直接更新UI
+                // UI更新将由定时器的Timer_Tick事件处理
                 mRealTimeImage = value;
-                
-                // 立即更新UI
-                UpdatePictureBoxImage();
             }
         }
     }