US4388554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent display component
Assignee: PLANAR INTERNATIONAL A CORP OF FINLAND Oy
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Filing: 1981-06-11
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Granted: 1983-06-14
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Expires: 2001-06-11
Abstract
Abstract Disclosed herein is an electroluminescent display component, which may be provided as a unified, large-scale device mounted on a substrate. Electroluminescent material is sandwiched between two electrodes, each of which may be formed in spaced lines, perpendicular to the lines of the other electrode, to form a matrix. At each portion wherein the electrodes are disposed in opposition to each other, each electrode is formed with elongated parallel gaps, divergent from the gaps of the opposed electrode, thus providing a screen effect and minimizing the unified areas at which the electrodes are opposed to each other.
Inventors
- 👤 Tuomo Suntola
- 👤 Jorma O. Antson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:41
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/26
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
An improved electroluminescent display component comprising a substrate having successive layers disposed thereon, including a film-type first electrode, an electroluminescent layer, and a second film-type electrode, the improvement comprising an arrangement of said first and second electrodes wherein opposed areas of said respective electrodes are divided into strips by means of elongated gaps disposed side by side over the extent of such opposed areas of each said first and second electrodes, said gaps being arranged in said first electrode in a diverging relationship with respect to the said gaps in said second electrode.
Claim 2
Dependent Claim
93 words
An improved electroluminescent display component comprising a substrate having successive layers disposed thereon, including a film-type first electrode, an electroluminescent layer, and a second film-type electrode, the improvement comprising an arrangement of said first and second electrodes wherein opposed areas of said respective electrodes are divided into strips by means of elongated gaps disposed side by side over the extent of such opposed areas of each said first and second electrodes, said gaps being arranged in said first electrode in a diverging relationship with respect to the said gaps in said second electrode.
Claim 3
Dependent Claim
76 words
An electroluminescent display component as set forth in claim 1 wherein said first and second electrodes each comprises separate spaced lines, together forming a matrix which defines a pattern of separate display elements, each element being formed by an area of the electroluminescent layer which is sandwiched between opposed areas of said first and second electrodes, and wherein a plurality of said gaps are provided in each of said electrodes at each of said display elements.
Claim 4
Dependent Claim
55 words
An electroluminescent display component as set forth in claim 2 wherein the opposed lines are substantially perpendicular to each other and wherein the gaps are arranged substantially in the longitudinal direction of the lines such that the gaps, as well as the strips between them, in opposed electrode layers are substantially prependicular to each other.
Claim 5
Dependent Claim
29 words
An electroluminescent display component as set forth in claim 3 wherein the lengths of said gaps in each said electrode line are longer than the widths of said lines.
References Cited (Backward Citations)
US2932770A
Cited
US3631286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |