Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1994-12-14
1997-11-04
Pascal, Robert
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
345 76, 345 92, 313500, 313504, 313506, 257 59, 257448, 349 42, H01L 2712
Patent
active
056843658
ABSTRACT:
A flat panel display comprising thin-film-transistor-electroluminescent (TFT-EL) pixels is described. An addressing scheme incorporating two TFTs and a storage capacitor is used to enable the EL pixels on the panel to operate at a duty factor close to 100%. This TFT-EL device eliminates the need to pattern the EL cathode, thus greatly simplifying the procedure to delineate the EL pixels as well as ensuring high resolution. The TFT-EL panel consumes less power than conventional TFT-LCD panels, especially when the usage factor of the screen is less than unity.
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Hseih Biay Cheng
Tang Ching Wan
Eastman Kodak Company
Kinkead Arnold
Owens Raymond L.
Pascal Robert
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