Is this the driver I need to download my pictures to my computer? I have an LG Leon LTE.
Yes, the LG Android Platform Drivers are necessary for your phone to be discoverable on the PC you're using. Sometimes the drivers are contained within the phone and you just have to connect the phone to PC and then enable USB(PC) Connection or MTP Connection.
Sometimes you are prompted to confirm the installation of the software and its drivers from the phone.
Additionally, download the PC Suite application found on the official website of the developer: http://www.lg.com/us/support/product-help/CT10000026-20150108669720