Changes to Uppercase in own created table in SE16

Hi Experts

I have created an own table where I can save the data.

These data can include both uppercase and lowercase letters.

When I want to find something in my table in the t-code SE16 and press Enter, the letters always changes to big letters.

Then I don't find anything because the data usually is written in small letters.

How can I solved this? Where can I change the option to search with small letters or mix letters?

Thanks // Peter B