A pocket door with a frosted-glass panel. The door's glass insert allows for both privacy and light between the two spaces.
Build a modern barn door in a contemporary 4 panel style for $50. Blogger provides a complete how to and plans.
Cyber Monday Sale Baxton Studio Botticelli Brown Modern TV Stand with Frosted Glass Door
White, 6 panel glass. May not have same impact without side lights front door/ sidelights