diff --git a/src/common/RemoteDataExangeProcesser.ts b/src/common/RemoteDataExangeProcesser.ts
index 4502121..35d2037 100644
--- a/src/common/RemoteDataExangeProcesser.ts
+++ b/src/common/RemoteDataExangeProcesser.ts
@@ -49,6 +49,14 @@ export default class RemoteDataExangeProcesser {
                   "setWallRow",
                   global_data.applicationConfig.wall_row
                 );
+                $store.commit(
+                  "setDeviceScreenWidth",
+                  global_data.applicationConfig.screen_width
+                );
+                $store.commit(
+                  "setDeviceScreenHeight",
+                  global_data.applicationConfig.screen_height
+                );
               }
             }
           }
diff --git a/src/entities/WSProtocol.ts b/src/entities/WSProtocol.ts
index 2717823..ed0da97 100644
--- a/src/entities/WSProtocol.ts
+++ b/src/entities/WSProtocol.ts
@@ -187,6 +187,14 @@ export namespace Protocol {
       return Commands.PROTOCOL_PREFIX + "RpcSetSubtitle";
     }
 
+    public static get kRpcGetScreenSize() {
+      return Commands.PROTOCOL_PREFIX + "RpcGetScreenSize";
+    }
+
+    public static get kScreenSizeChanged() {
+      return Commands.PROTOCOL_PREFIX + "ScreenSizeChanged";
+    }
+
     static _all_commands = new Set([
       Commands.kUnKnowCommand,
       Commands.kSearchDevice,
@@ -228,6 +236,8 @@ export namespace Protocol {
       Commands.kSetApplicationConfig,
       Commands.kRpcGetSubtitle,
       Commands.kRpcSetSubtitle,
+      Commands.kRpcGetScreenSize,
+      Commands.kScreenSizeChanged,
     ]);
 
     public static get AllCommands() {
@@ -1076,4 +1086,32 @@ export namespace Protocol {
       this.command = Protocol.Commands.kRpcSetSubtitle;
     }
   }
+
+  export class GetScreenSizeRequestEntity extends Protocol.PacketEntity {
+    timestamp = new Date().getMilliseconds();
+
+    constructor(rcp_id?: number) {
+      super();
+      this.rpc_id = rcp_id ?? 0;
+      this.command = Protocol.Commands.kRpcGetScreenSize;
+    }
+  }
+
+  export class GetScreenSizeResponseEntity extends Protocol.PacketEntity {
+    width: number = 0;
+    height: number = 0;
+    constructor() {
+      super();
+      this.command = Protocol.Commands.kRpcGetScreenSize;
+    }
+  }
+
+  export class ScreenSizeChangedNotifyEntity extends PacketEntity {
+    width: number = 0;
+    height: number = 0;
+    constructor() {
+      super();
+      this.command = Commands.kScreenSizeChanged;
+    }
+  }
 }
diff --git a/src/pages/WallPage.vue b/src/pages/WallPage.vue
index 0129a66..e678382 100644
--- a/src/pages/WallPage.vue
+++ b/src/pages/WallPage.vue
@@ -6,7 +6,7 @@
     @dragleave="onDragLeave"
     @dragover="onDragOver"
     @drop="onDrop"
-    style="background-color:#bce0f0;"
+    style="background-color: #bce0f0"
   >
     <div id="windows" style="position: absolute">
       <window
@@ -26,10 +26,20 @@
         :signal_source_table_uuid="item.signal_source_table_uuid"
         :window="item"
         :style="{
-          top: item.y / wall_height_scaler + 'px',
-          left: item.x / wall_width_scaler + 'px',
-          width: item.width / wall_width_scaler + 'px',
-          height: item.height / wall_height_scaler + 'px',
+          top:
+            (item.y * $store.state.device_screen_height) / wall_height_scaler +
+            'px',
+          left:
+            (item.x * $store.state.device_screen_width) / wall_width_scaler +
+            'px',
+          width:
+            (item.width * $store.state.device_screen_width) /
+              wall_width_scaler +
+            'px',
+          height:
+            (item.height * $store.state.device_screen_height) /
+              wall_height_scaler +
+            'px',
         }"
       />
     </div>
@@ -302,9 +312,6 @@ export default defineComponent({
       item_height,
       wall_width_scaler,
       wall_height_scaler,
-      loga(a: any) {
-        console.log(a);
-      },
       onDrop(e: DragEvent) {
         e.preventDefault();
         let target = e.target as any;
@@ -329,10 +336,14 @@ export default defineComponent({
                     ?.openWindow(
                       new Protocol.OpenWindowRequestEntity(
                         signal_source.uuid,
-                        dom.offsetLeft * wall_width_scaler.value,
-                        dom.offsetTop * wall_height_scaler.value,
-                        dom.offsetWidth * wall_width_scaler.value,
-                        dom.offsetHeight * wall_height_scaler.value
+                        (dom.offsetLeft * wall_width_scaler.value) /
+                          $store.state.device_screen_width,
+                        (dom.offsetTop * wall_height_scaler.value) /
+                          $store.state.device_screen_height,
+                        (dom.offsetWidth * wall_width_scaler.value) /
+                          $store.state.device_screen_width,
+                        (dom.offsetHeight * wall_height_scaler.value) /
+                          $store.state.device_screen_height
                       )
                     );
                 } else if (dom.classList.contains("window_flag")) {
@@ -409,27 +420,37 @@ export default defineComponent({
           {
             window,
             property_name: "x",
-            value: window.x + offset_x * wall_width_scaler.value,
+            value:
+              window.x +
+              (offset_x * wall_width_scaler.value) /
+                $store.state.device_screen_width,
           },
           {
             window,
             property_name: "y",
-            value: window.y + offset_y * wall_height_scaler.value,
+            value:
+              window.y +
+              (offset_y * wall_height_scaler.value) /
+                $store.state.device_screen_height,
           },
           {
             window,
             property_name: "width",
             value: Math.max(
-              window.width + offset_width * wall_width_scaler.value,
-              32
+              window.width +
+                (offset_width * wall_width_scaler.value) /
+                  $store.state.device_screen_width,
+              32 / $store.state.device_screen_width
             ),
           },
           {
             window,
             property_name: "height",
             value: Math.max(
-              window.height + offset_height * wall_height_scaler.value,
-              32
+              window.height +
+                (offset_height * wall_height_scaler.value) /
+                  $store.state.device_screen_height,
+              32 / $store.state.device_screen_height
             ),
           },
         ]);