# Add display module (1) -- Add files (copy files)
Adding files (copying files) is mainly divided into SDK 2.4 and later ([External](lcd_driver_Modem)) and versions earlier than SDK 2.4 ([Internal](lcd_driver_Internal)). The locations for copying the related files are the same, but the files are added to different paths.<br>
A display module consists of three parts: the display driver, backlight driver, and TP driver. However, if you only need to debug the display, you only need to complete the file modifications related to the display driver. The backlight can be used directly, and the TP driver does not need to be implemented; this is sufficient for display debugging.
```{toctree}
:titlesonly:
Add screen module (1 external)
Add screen module (1 built-in)
```