US3840858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-numerical display device
Assignee: Sony Corp
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Filing: 1973-01-03
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Granted: 1974-10-08
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Expires: 1993-01-03
Abstract
Abstract An alpha-numerical display device comprising a plurality of light emitting diodes mounted in a prearranged design on a surface of a transparent plate whose diode mounting surface side has formed thereon a plurality of conductive strips between which a layer of opaque insulating material is formed except for windows in which the diodes are located. An insulating layer covers the opaque layer and the conductive strips. Bridging strips are formed in a layer overlying the insulating layer which connect the electrodes of the diodes to their associated conductive strips for energization. Each bridging strip extends at one end down through a window in the insulating layer adjacent an associated diode electrode into electrical contact therewith and the other end extends down through another window into electrical contact with its associated conductive strip. A reflective layer may be employed above the back side of the diode and spaced therefrom to cause the bulk of the light emitted from the diode to be transmitted through the transparent plate on the front side of the diode. A modified form of the structure may be had by using the conductive strips both as a mask and as a conductive member. This is accomplished by shaping the conductive strips so that while isolated from each other they still cover a very large percentage of the surface of the transparent mounting plate.
Inventors
- 👤 S Usui
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:24
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/30; H04N3/34; G; G09; G09F; G09F9/00; G09F9/30; G09F9/302; G09F9/3023; G09F9/33
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
110 words
An alpha-numerical display device comprising a transparent insulating plate having a plurality of light emitting diodes mounted thereon with their P-N junctions disposed perpendicular to the plane of said plate and arranged in an array for alphanumerical display, and means for selectively forwardly biasing different ones of said light emitting diodes, a plurality of conducting strips are formed on the same surface of said transparent insulating plate as said diodes and in which a first insulating layer is formed on said plate between said strips except for a window therethrough opposite each light emitting diode and light is emitted from said diode in a direction parallel to said P-N junction.
Claim 2
Dependent Claim
110 words
An alpha-numerical display device comprising a transparent insulating plate having a plurality of light emitting diodes mounted thereon with their P-N junctions disposed perpendicular to the plane of said plate and arranged in an array for alphanumerical display, and means for selectively forwardly biasing different ones of said light emitting diodes, a plurality of conducting strips are formed on the same surface of said transparent insulating plate as said diodes and in which a first insulating layer is formed on said plate between said strips except for a window therethrough opposite each light emitting diode and light is emitted from said diode in a direction parallel to said P-N junction.
Claim 3
Dependent Claim
62 words
An alpha-numerical display device according to claim 1, in which a second insulating layer is formed over said conducting strips and said first insulating layer and conductive jumpers formed on said second insulating layer and extending down therethrough and each having two terminal arms, one of which is connected to one side of said diode and the other to a conductive strip.
Claim 4
Dependent Claim
16 words
An alpha-numerical display device according to claim 1, in which said first insulating layer is opaque.
Claim 5
Dependent Claim
118 words
An alpha-numerical display device comprising a transparent insulating plate having a plurality of light emitting diodes mounted thereon with their P-N junctions disposed perpendicular to the plane of said plate and arranged in an array for alpha-numerical display, and means for selectively forwardly biasing different ones of said light emitting diodes, in which said means for forwardly biasing includes a plurality of conducting strips mounted on the same surface of said transparent insulating plate as said light emitting diodes, an insulating layer substantially covering nearly all of the area between said conducting strips, whereby said insulating layer and strips act as an opaque mask and light emitted from said diodes in a direction parallel to said P-N junctions.
Claim 6
Dependent Claim
118 words
An alpha-numerical display device comprising a transparent insulating plate having a plurality of light emitting diodes mounted thereon with their P-N junctions disposed perpendicular to the plane of said plate and arranged in an array for alpha-numerical display, and means for selectively forwardly biasing different ones of said light emitting diodes, in which said means for forwardly biasing includes a plurality of conducting strips mounted on the same surface of said transparent insulating plate as said light emitting diodes, an insulating layer substantially covering nearly all of the area between said conducting strips, whereby said insulating layer and strips act as an opaque mask and light emitted from said diodes in a direction parallel to said P-N junctions.
Claim 7
Dependent Claim
154 words
An alpha-numerical display device comprising a transparent insulating plate, a plurality of light emitting diodes mounted in a pre-arranged design on one surface of said plate and having P-N junctions normal to said plate, a plurality of conductive strips formed on said plate on the same side that said diodes are mounted, a first layer of opaque insulating material formed on said plate between said strips except for windows in which said diodes are located, a second insulating layer covering said first opaque insulating layer and said conductive strips, bridging strips formed on said second insulating layer, each bridging strip having one end thereof extending down through said second insulating layer into contact with a terminal of said diode and having the other end thereof extending down through said second insulating layer into contact with one of said conductive strips and light emitted from said diodes in a direction parallel to said P-N junctions.
Claim 8
Dependent Claim
154 words
An alpha-numerical display device comprising a transparent insulating plate, a plurality of light emitting diodes mounted in a pre-arranged design on one surface of said plate and having P-N junctions normal to said plate, a plurality of conductive strips formed on said plate on the same side that said diodes are mounted, a first layer of opaque insulating material formed on said plate between said strips except for windows in which said diodes are located, a second insulating layer covering said first opaque insulating layer and said conductive strips, bridging strips formed on said second insulating layer, each bridging strip having one end thereof extending down through said second insulating layer into contact with a terminal of said diode and having the other end thereof extending down through said second insulating layer into contact with one of said conductive strips and light emitted from said diodes in a direction parallel to said P-N junctions.
Claim 9
Dependent Claim
25 words
An alpha-numerical display device according to claim 5, in which a protective insulating layer covers the assembly over the side opposite said transparent insulating plate.
Claim 10
Dependent Claim
30 words
An alpha-numerical display device according to claim 5 having a reflecting member for each of said diodes mounted above and spaced from said diodes to reflect light through said window.
Claim 11
Dependent Claim
46 words
An alpha-numerical display device according to claim 5, in which a second window is provided on the back side of the array for each of said diodes, whereby when light is emitted from said diodes it may be seen from both sides of the display device.
Claim 12
Dependent Claim
33 words
An alpha-numerical display device according to claim 2, in which said conducting strips extend out beyond at least one edge of said second insulating layer to provide terminal connections for said conducting strips.
Claim 13
Dependent Claim
68 words
A light emitting device cOmprising an insulating plate, at least two conductive layers formed on said plate, an insulating layer formed on said plate and having at least one window, a light emitting diode positioned in said window, said light emitting diode having two electrodes and a P-N junction perpendicular to a plane of said insulating plate, and means for connecting said electrodes to said conductive layers respectively.
Claim 14
Dependent Claim
68 words
A light emitting device cOmprising an insulating plate, at least two conductive layers formed on said plate, an insulating layer formed on said plate and having at least one window, a light emitting diode positioned in said window, said light emitting diode having two electrodes and a P-N junction perpendicular to a plane of said insulating plate, and means for connecting said electrodes to said conductive layers respectively.
Claim 15
Dependent Claim
21 words
A light emitting device according to claim 10, wherein said insulating plate is transparent to light from said light emitting diode.
Claim 16
Dependent Claim
25 words
A light emitting device according to claim 10, wherein said connecting means are conductive resin layers formed between said electrodes and said conductive layers respectively.
Claim 17
Dependent Claim
32 words
A light emitting device according to claim 10, wherein said window of said insulating layer has a portion for positioning said light emitting diode and a portion for receiving said connecting means.
Claim 18
Dependent Claim
93 words
A light emitting device comprising an insulating plate, a plurality of conductive layers formed on said insulating plate, an insulating layer formed at least on said insulating plate and having a plurality of windows, a plurality of light emitting diodes positioned in said windows respectively with P-N junctions normal to said plate, said insulating layer absorbing at least light from said light emitting diode, said light emitting diodes having two electrodes and a junction perpendicular to a plane of said insulating plate, and means for connecting said electrodes to said conductive layer, respectively.
Claim 19
Dependent Claim
93 words
A light emitting device comprising an insulating plate, a plurality of conductive layers formed on said insulating plate, an insulating layer formed at least on said insulating plate and having a plurality of windows, a plurality of light emitting diodes positioned in said windows respectively with P-N junctions normal to said plate, said insulating layer absorbing at least light from said light emitting diode, said light emitting diodes having two electrodes and a junction perpendicular to a plane of said insulating plate, and means for connecting said electrodes to said conductive layer, respectively.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |