is one of the most important material of flat panel display. Researching work on TFEL is sustained until now. We have started stable EL from ZnS:Mn
Cu thin film
at first
and doped with rare earth ions into thin film
realized various color DCEL and studied excitation mechanism
energy distribution of hot electrons
impact section of rare earth ion and the position of rare earth ion in crystal lattice. At first
in our country we have worked out computer terminal display device of TFEL and made it in large area (640×480 lines). In order to realize color TFEL display
we have fabricated different color TFEL doped with different rare earth ions
studied concentration quenching of rare earth ions in TFEL and their mechanism
guided to fabricate material and increase EL brightness. In process of realizing color display of TFEL
the first task is increasing brightness of blue TFEL and searching new blue TFEL material. We improved AnS:TmF
3
to CaS:TmF
3
which brightness was greatly increased
fabricated SrS:Ce blue TFEL with high brightness over 1000 cd/m
2
found nano-meter Si and non-crystal Si/SiO
2
superlattice structure of blue EL
obtained white EL in ZnS:Mn/SrS:Ce and SrS:Ho
3
with three basic color line spectrum emission with high brightness over 1000cd/m
2
.
关键词
Keywords
references
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