# External
This section uses the display driver `nv3051f1`, TP driver `gt911`, and backlight driver `nw9527` as examples to add a new display using the display driver [external](lcd_driver_Modem) method. Refer to the following for details:
## Copy Similar Display Driver Code and Add It to the Build
- First, in the SDK\customer\peripherals directory, find a similar [adapted display driver](./已适配屏幕模组列表.md),
- Copy the entire directory to the external display driver folder, and rename the directory to "nv3051f1"
- Also rename the display driver .c file inside to nv3051f1.c, and [modify its contents](update-lcd-param).
- Change the depend macro in the SConscript file inside to the previously added `LCD_USING_NV3051F1`, so that the newly added file is included in the build.


## Copy Similar TP Driver Code and Add It to the Build
- First, in the SDK\customer\peripherals directory, find a similar [adapted TP driver](./已适配屏幕模组列表.md),
- Copy the entire directory to the external display driver folder, and rename the directory to "gt911"
- Also rename the display driver .c/.h files inside to gt911.c/.h, and [modify their contents](update-tp-param).
- Change the depend macro in the SConscript file inside to the previously added `TSC_USING_GT911`, so that the newly added file is included in the build.


## Copy Similar Backlight Driver Code and Include It in the Build
- First, in the SDK\customer\peripherals directory, find the aw9364 directory,
- Copy the entire directory to the external display driver folder, and rename the directory to "nw9527"
- Rename the driver .c file inside to nw9527.c, and [modify its contents](modify-lcd-bl-c-file).
- Change the depend macro in the SConscript file inside to the previously added `BL_USING_NW9527`, so that the newly added file is included in the build
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**Note**: Change the driver name here to the corresponding display driver name. Add whichever driver is needed (display driver, TP, or backlight)
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