A folder can not display content like a page. It is not designed to display text, links, photos, etc. A folder is simply a container and by default will display what it contains. How it displays it's content is dependent on which option is selected from the Display drop-down menu.
Standard view is the default display for folders. It lists all published content within the folder, with descriptions, if present. Icons are only visible to logged-in uers.
Summary view is unique in that it includes text and thumbnail images (if images, or news items with images, are present). Descriptions are also included.
Just as the name implies, contents of the folder are displayed in a table. The icons, author and last modified columns are only visible to users who are logged in.
Thumbnail view works well for image libraries.
Select (or Change) a Content Item as the Default View
For total control of what is displayed for the folder you can select a content item as the default view. This allows you to select an item within the folder and display it's content in lieu of the folder's content listing. For more information, see Setting a Folder's Home Page.