diff --git a/src/components/widget/WidgetWindowExternal.tsx b/src/components/widget/WidgetWindowExternal.tsx
deleted file mode 100644
index a6dbae5de..000000000
--- a/src/components/widget/WidgetWindowExternal.tsx
+++ /dev/null
@@ -1,17 +0,0 @@
-import Chat from './Chat';
-import { ChatAiWidgetProps } from './ChatAiWidget';
-import ProviderContainer from './ProviderContainer';
-
-/**
- * NOTE: External purpose only.
- * Do not use this component directly. Use Chat instead for internal use.
- */
-function WidgetWindowExternal(props: ChatAiWidgetProps) {
-  return (
-    <ProviderContainer {...props}>
-      <Chat />
-    </ProviderContainer>
-  );
-}
-
-export default WidgetWindowExternal;
diff --git a/src/components/widget/WidgetWindowFullScreen.tsx b/src/components/widget/WidgetWindowFullScreen.tsx
new file mode 100644
index 000000000..2711cf6b5
--- /dev/null
+++ b/src/components/widget/WidgetWindowFullScreen.tsx
@@ -0,0 +1,23 @@
+import Chat from './Chat';
+import { ChatAiWidgetProps } from './ChatAiWidget';
+import ProviderContainer from './ProviderContainer';
+import { elementIds } from '../../const';
+
+/**
+ * NOTE: External purpose only.
+ * Do not use this component directly. Use Chat instead for internal use.
+ */
+function WidgetWindowFullScreen(props: ChatAiWidgetProps) {
+  return (
+    <ProviderContainer {...props}>
+      <div
+        id={elementIds.widgetWindow}
+        style={{ position: 'fixed', left: 0, top: 0, width: '100%', height: '100%', transform: 'scale(1)' }}
+      >
+        <Chat />
+      </div>
+    </ProviderContainer>
+  );
+}
+
+export default WidgetWindowFullScreen;
diff --git a/src/index.ts b/src/index.ts
index 794ba3df8..1f5a306bf 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,6 @@
 export { default as ChatAiWidget } from './components/widget/ChatAiWidget';
 export { type ProviderContainerProps as ChatAiWidgetConfigs } from './components/widget/ProviderContainer';
-export { default as ChatWindow } from './components/widget/WidgetWindowExternal';
+export { default as ChatWindow } from './components/widget/WidgetWindowFullScreen';
 export { widgetServiceName } from './const';
 export { clearWidgetSessionCache, clearCache } from './libs/storage/widgetSessionCache';