Electroluminescent display
Electroluminescent Displays (ELDs) are a type of
Mechanism
EL works by exciting atoms by passing an electric current through them, causing them to emit photons. By varying the material being excited, the colour of the light emitted can be changed. The actual ELD is constructed using flat, opaque electrode strips running parallel to each other, covered by a layer of electroluminescent material, followed by another layer of electrodes, running perpendicular to the bottom layer. This top layer must be transparent in order to let light escape. At each intersection, the material lights, creating a pixel.
Uses
Electroluminescent displays have been a very niche format and are very rarely used nowadays. Some uses have included to indicate speed and altitude at the front of the Concorde, and as floor indicators on Otis Elevators from around 1989 to 2007,[7] mostly only available to high-rise buildings and modernizations.
Abbreviations
- AMEL Active Matrix Electroluminescence
- TFEL Thin Film Electroluminescence
- TDEL Thick Dielectric Electroluminescence
See also
- Electroluminescence
- History of display technology
- Thick-film dielectric electroluminescent technology
References
- ^ "Top electrode for transparent display". Beneq. 2020-03-06. Retrieved 2021-03-11.
- ^ "LUMINEQ in-glass displays IGLD". www.lumineq.com.
- ^ "ICEBrite™ small graphics TFEL display" (PDF). www.lumineq.com.
- ^ "LUMINEQ transparent displays TASEL". www.lumineq.com.
- ^ "Rugged TFEL displays operate from -60 to +105°C". eeNews Europe. March 14, 2017.
- ^ https://beneq.com/en/displays/products/all [dead link]
- ^ "Electroluminescent display" (PDF). February 9, 2022.