Electric lamp and discharge devices: systems – Plural power supplies – Plural cathode and/or anode load device
Patent
1994-08-23
1996-01-23
Pascal, Robert J.
Electric lamp and discharge devices: systems
Plural power supplies
Plural cathode and/or anode load device
315246, 313491, 313507, G09G 310
Patent
active
054867380
ABSTRACT:
An electroluminescent device comprising a first electrode, a second electrode and an electroluminescence emission zone, the electroluminescence emission zone being made of a first electroluminescence emission layer, a second electroluminescence emission layer, and a transparent electrode which is interposed between the first electroluminescence emission layer and the second electroluminescence emission layer. At least either the first electrode or the second electrode is a transparent electrode. The first electroluminescence emission layer and the second electroluminescence emission layer emit light by applying a driving voltage to the transparent electrode with both the first electrode and the second electrode connected to a power supply for a reference voltage. In an image sensor using such an electroluminescent device as a light source, the electric field produced by the driving signal of the electroluminescent device does not escape outward, presenting no interfering noise to the image sensor. The resulting light quantity is almost double that of devices with only a single electroluminescent layer, substantially enhancing a resulting image. As a result, a high S/N ratio image sensor may be fabricated.
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patent: 3975661 (1974-06-01), Kanatani et al.
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patent: 4743808 (1988-05-01), Mitsumori
patent: 5164580 (1992-11-01), Funada et al.
Kaifu Noriyuki
Kameshima Toshio
Mizutani Hidemasa
Saika Toshihiro
Canon Kabushiki Kaisha
Pascal Robert J.
Ratliff Reginald A.
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