Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-02-16
1996-07-23
Weldon, Ulysses
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 45, 313509, G09G 330
Patent
active
055394248
ABSTRACT:
A thin-film EL display device of red luminescent color having high luminous intensity and high reliability is disclosed. The thin-film EL display device has a first transparent electrode, a first transparent insulating layer, a light-emitting layer of zinc sulfide (ZnS) with the addition of manganese (Mn), a red-light transmitting filter of amorphous silicon (a-Si), a second transparent insulating layer, and a second transparent electrode (second electrode), which are successively deposited one on top of another on a glass substrate. The EL display device produces red light from orange light emission from the light-emitting layer. High temperature resistance of the filter permits the insertion of the filter to a desired position during the fabrication process for the thin-film EL display device. Furthermore, since the filter characteristics of the thin-film EL display do not suffer degradation by the heat generated during the light emitting operation thereof, there is no concern for luminescent color deterioration with time.
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Hattori Tadashi
Hattori Yutaka
Ito Nobuei
Mizutani Atsushi
Luu Matthew
Nippondenso Co. Ltd.
Research Development Corporation of Japan
Weldon Ulysses
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