big screen vs room divider

big screen

noun
  • The large viewing surface upon which films are projected in a cinema. 

  • movies, or that which is related to movies or cinema. 

room divider

noun
  • A screen or piece of furniture placed in a way that it divides a room into separate areas. 

How often have the words big screen and room divider occurred in a corpus of books? (source: Google Ngram Viewer )