Hello,
Sorry, I´m able to show the displayName in Share now, the problem was that I was assigning in a bad way the group to the folder, I forgot to add "GROUP_" to the name when I assigned the group to folder, so in Alfresco web, it showed me that I assigned something called as my group(and for this reason I thought it was rigth), but in Share it didn´t.
I suppose that it created a node with the name but not other properties.
Thank you so much.
Salutes.