I'm trying to unplug these connectors to get access to the lcd display.

Do I need a special tool? I tried but to no avail. The little ones seem fragile. What is the name of these connectors?

[![small connector](https://i.stack.imgur.com/J3vLn.jpg)](https://i.stack.imgur.com/J3vLn.jpg)

[![bigger connector](https://i.stack.imgur.com/xBojy.jpg)](https://i.stack.imgur.com/xBojy.jpg)