create views parent term

hello,

i am looking for the method how to create a page that listing just a parent term.

i have vocabulary : category
an it have some term:
- bags
- camera
--- canon
--- nikon
--- casio
- data storage
- ....

i want to create the pages using panels + views
in views, i am using views content panes

so, this page will display :
- bags
- camera
- data storage
- ...

if i click to camera, it will go to other page with contents :
- canon
- nikon
- casio

how to make this happen ?

thanks