HP 48 HG Calculator LCD Screen

[Jeff_Birt]

(08-29-2022 09:26 PM)jpazos Wrote:  Really, I suppose the LCD is damaged. I am attaching a picture. Do you know where can I buy the screen part? or who could fix it?

best regards

Javier

This is a problem with one of both polarizing films going bad. Many times it can be fixed it depends on how the LCD is assembled.

Starting about the 2:23 mark in this video I show taking apart a smaller LCD with a similar problem. I did not have the correct reflective polarizer film for the back of the LCD but use normal polarizer with a sheet of white paper behind it. The results were not great, but better than it was originally. I did get in some of the proper film but have not had a chance to try fixing it properly.