I have only disassembled much smaller LCD calculator screens which is a much easier proposition. But if you could separate and replace the top polarizer film from the rest of the LCD display that might be all it takes. But the exact specifications of the replacement polarizer screen on the m100 is anyone's guess? So one would have to try different film grades to see what works. I also assume the acetate material (or other film) of the polarizer has fogged after 45 years of intermittent UV exposure?
This trick is always fun: Disassemble a calculator screen and rotate the polarized film 180 degrees. It will invert the text to be white characters on a black background. In theory the same would be true on a m100 display I assume. Various grades of polarizing films are readily available online. DS On Sat, Nov 22, 2025 at 10:25 PM Scott McDonnell <[email protected]> wrote: > I guess it was inevitable. Browsing Ebay this week, the line up of Model > 100s < $100 appear to have polarizer degradation issue (blackened wet > looking center) It was bound to affect our Model Ts at some point. > > What are our options moving forward as our own collection will one day > suffer this fate? > > Has anyone successfully replaced the polarizer on the Model T LCDs? Have > replacement LCDs been looked into? > > Scott McDonnell >
