Hi @amberdawn ,
Have you checked the Screen Timeout settings in the Phone?
Go to ''Tools >Settings > Display > Screen timeout'' and select the time that suits you best.
Here's a link to the [https://support.sprint.com/global/pdf/user_guides/lg/tribute_hd/lg_tribute_hd_ug.pdf|User manual] for a LG Dynasty Tribute HD which may be of some help. Scroll to p.141 to view all the options available for the Display Settings