I'd create a html-page with all images and show that in kiosk mode in a browser. A simple Android-box or Chromebook with a network connection, a browser and a hdmi-out should be fine (assuming Google Chrome has something like a kiosk-mode). Internet Explorer has, and a simple Windows tablet might be fine also.
Kees
Hopefully this is the right place to ask this question and someone will have some insight as to what is the best way to accomplish this! Basically I'm trying to digitize an employee picture bulletin board and then display all the images on a very large (60" - 70") display. I have all the images (around 160) in .PDF form but have failed in my attempts to create a collage or format to display all the pictures correctly and without image degradation. I have the funds to purchase hardware or software solutions but I'm just not sure what is out there or how to go about this in the best way. Does anyone have any ideas on how to display 160+ pictures in a column/row format on a large display? It would be nice to be able to edit it easily as employees come and go. Thanks in advance for any input!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic