ELECTROLUMINESCENT DEVICE HAVING IMPROVED BRIGHTNESS UNIFORMITY
First Claim
1. An electroluminescent device having an opposing EL-segment pair, comprising:
- (a) a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection;
(b) a second EL-segment that produces light in response to a second through-device current, and having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-segment such that the first transparent electrode connection is on the opposite edge as the second transparent electrode connection and the direction of the first transparent electrode current is parallel but opposite to the direction of the second transparent electrode current; and
(c) the first and second EL-segments are connected to a common power source such that the two EL-segments can be simultaneously forward biased.
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Accused Products
Abstract
An electroluminescent device having an opposing EL-segment pair, including a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection; a second EL-segment that produces light in response to a second through-device current, and having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-segment such that the first transparent electrode connection is on the opposite edge as the second transparent electrode connection and the direction of the first transparent electrode current is parallel but opposite to the direction of the second transparent electrode current; and the first and second EL-segments are connected to a common power source such that the two EL-segments can be simultaneously forward biased.
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Citations
11 Claims
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1. An electroluminescent device having an opposing EL-segment pair, comprising:
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(a) a first EL-segment that produces light in response to a first through-device current having a first transparent electrode connection and a first reflective electrode connection; (b) a second EL-segment that produces light in response to a second through-device current, and having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-segment such that the first transparent electrode connection is on the opposite edge as the second transparent electrode connection and the direction of the first transparent electrode current is parallel but opposite to the direction of the second transparent electrode current; and (c) the first and second EL-segments are connected to a common power source such that the two EL-segments can be simultaneously forward biased. - View Dependent Claims (2, 3, 4, 5)
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6. An electroluminescent device having an opposing EL-strip pair, comprising:
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(a) a first EL-strip having two or more EL-segments connected in series that produces light in response to a through-device current, having a first transparent electrode connection and a first reflective electrode connection; (b) a second EL-strip having two or more EL-segments connected in series that produces light in response to a second through-device current, having a second transparent electrode connection and a second reflective electrode connection and being disposed adjacent to and spaced from the first EL-strip such that the second transparent electrode connection is at the opposite end from the first transparent electrode connection and the direction of the transparent electrode currents in each EL-segment of the first EL-strip are parallel but opposite to the direction of the transparent electrode currents in each EL-segment of the second EL-strip; and (c) the first and second EL-strips are connected to a common power supply such that the two EL-strips are simultaneously forward biased. - View Dependent Claims (7, 8, 9, 10)
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11. A light panel comprising a plurality of zones with each zone having a plurality of opposing EL-segment pairs, electrically connected in parallel and means for applying an independently controlled potential to each zone.
Specification