diff --git a/src/views/ToolboxView/Other/Msu2UsbMonitorController/Msu2UsbMonitorController.vue b/src/views/ToolboxView/Other/Msu2UsbMonitorController/Msu2UsbMonitorController.vue
index ea08122..8269b27 100644
--- a/src/views/ToolboxView/Other/Msu2UsbMonitorController/Msu2UsbMonitorController.vue
+++ b/src/views/ToolboxView/Other/Msu2UsbMonitorController/Msu2UsbMonitorController.vue
@@ -30,6 +30,13 @@
           type="primary"
           @click="lcdSetDirection(1)"
         >设置显示方向：反</n-button>
+        <n-button
+          type="primary"
+          title="注意：仅支持 PRO 版本的设备"
+          @click="lcdSetBrightness(lcdBrightness)"
+        >设置屏幕亮度</n-button>
+      </n-flex>
+      <n-flex>
         <n-button
           type="primary"
           :disabled="isUseNewDisplayDataConvertFunction"
@@ -110,6 +117,16 @@
           />
         </n-form-item>
 
+        <n-form-item label="屏幕亮度：">
+          <n-input-number
+            v-model:value="lcdBrightness"
+            title="单位：占空比"
+            :min="0"
+            :max="1000"
+            :step="1"
+          />
+        </n-form-item>
+
         <n-form-item label="屏幕捕获帧率：">
           <n-input-number
             v-model:value="screenCaptureFrameRate"
@@ -212,6 +229,9 @@ const isUseNewDisplayDataConvertFunction = ref(true);
 /** 屏幕捕获是否已就绪 */
 const isScreenCaptureReady = ref(false);
 
+/** 屏幕亮度 */
+const lcdBrightness = ref(500);
+
 /** 渲染间隔，毫秒 */
 const renderInterval = ref(100);
 
@@ -941,6 +961,37 @@ function convertDisplayDataLegacy(imageData = []) {
 
 }
 
+/**
+ * @description 设置屏幕亮度
+ * @param {number} pwmDuty 占空比，范围 0 ~ 1000
+ */
+async function lcdSetBrightness(pwmDuty = 500) {
+
+  if (typeof pwmDuty !== 'number' || isNaN(pwmDuty)) {
+    pwmDuty = 500;
+  }
+
+  if (pwmDuty > 1000) {
+    pwmDuty = 1000;
+  }
+
+  if (pwmDuty < 0) {
+    pwmDuty = 0;
+  }
+
+  let hexUse = [];
+
+  hexUse.push(2);                         // LCD 多次写入指令
+  hexUse.push(3);                         // 设置指令
+  hexUse.push(18);                        // 屏幕亮度指令
+  hexUse.push(Math.floor(pwmDuty / 256)); // 占空比高字节
+  hexUse.push(pwmDuty % 256);             // 占空比低字节
+  hexUse.push(0);
+
+  await sendData(hexUse);
+
+}
+
 /**
  * @description 设置显示方向
  * @param {0|1} direction 显示方向