The 4 inch ST7796 display seems to fit

A project log for Reviving the TI-92 calculator into a RPI PC

We are re-engineering the old PCB board into a modern PCB for a simple swap. The goal is to get an up to date RPI computer

pcadicpcadic 10/18/2020 at 19:430 Comments

It is easy to replace the old liquid crystals display. The display is attached to a black sub board using a double sides sticker. A knife is required to detach it.  I used another double side tape to attach the new color display. It fits well and it is possible to pack the all stuff together and insert the screws with no issue.