Imaging & Audio

Richard Friend

Polymer light-emitting diode display technology

United KingdomEvidence: high confidenceChecked July 2026

Richard Friend pioneered efficient polymer light-emitting diodes, devices that made it possible to envision plastic displays and later flexible electronics. Cambridge records that Cambridge Display Technology was established to develop the technology, while the university's Plastic Logic history documents its progression from a light-emitting plastic discovery into display products.

01

What Richard did

Pioneered efficient polymer light-emitting diodes and helped commercialize them through Cambridge Display Technology.

02

Why it matters

The work launched Cambridge Display Technology and established polymer LEDs as a route to flexible, directly printed display electronics.

03

Living-status check

Cambridge's 2026 profile lists Friend as Cavendish Professor, Energy IRC steering-committee director, and an active researcher in LEDs and solar cells.