This project is built around the idea of designing hardware for accessibility. In the modern context, many accessibility solutions are built around software. While this allows for a lot of flexibility in terms of features and content, it is an imperfect approach to design for users of all abilities. In particular, blind and deaf-blind users are poorly accounted for in terms of hardware design. They are a user group that is highly limited by the inadequate features designed for their needs, and this project will demonstrate that users feel frustrated by these imperfect solutions to using a smartphone without sight. Not only will this project present its own accessory to accompany software accessibility features, but this project will also try to push first-party manufacturers to design and create their own hardware solutions. LOUIS is a refreshable braille display that magnetically attaches to a smartphone case. It will give braille users the tools they need to not only operate their phone through hardware, but read and write through braille. It includes a braille display that can read out on-screen information using existing software APIs. It also has Perkins brailler keys for users to compose texts, emails and other messages. It is packaged into a thin and highly-portable package that will allow users to continue to pocket their phones easily.