Merge branch 'sdk650pathc0423' of https://codeup.aliyun.com/64191456b9581d62e8f81ac0...

diff --cc code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
index d6f94ab,b6b5037..caf36e2
--- 1/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
--- 2/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
+++ b/code/sdk/application/wearable/ln/service/power_manager/src/power_display_service.c
@@@ -109,6 -103,10 +103,12 @@@ static errcode_t power_display_turn_on_
      }\r
  #else\r
      PostGraphicEvent(power_display_turnon_handle_ext, NULL);\r
+ #endif\r
+ \r
+ #if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)\r
++if (g_screen_context.current_state != SCREEN_ON) {\r
+     uapi_lcd_backlight_on();\r
++}\r
  #endif\r
      return ERRCODE_SUCC;\r
  }\r
@@@ -128,6 -123,11 +125,13 @@@ static errcode_t power_display_turn_off
  #else\r
      PostGraphicEvent(power_display_turnoff_handle_ext, NULL);\r
  #endif\r
+ \r
+ #if defined(CUSTOM_UTILS) && defined(BOARD_LEINIAO)\r
++if (g_screen_context.current_state != SCREEN_OFF) {\r
+     uapi_lcd_backlight_off();\r
++}\r
+ #endif\r
+ \r
      return ERRCODE_SUCC;\r
  }\r
  \r