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US2730644A - Electroluminescent light means - Google Patents

Electroluminescent light means Download PDF

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US2730644A
US2730644A US22017351A US2730644A US 2730644 A US2730644 A US 2730644A US 22017351 A US22017351 A US 22017351A US 2730644 A US2730644 A US 2730644A
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electroluminescent
thin
transparent
layers
light
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Hyman A Michlin
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Hyman A Michlin
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/30Picture reproducers using solid-state colour display devices
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B33/00Electroluminescent light sources

Description

Jan. 10, 56 H. A. MICHLIN 2,730,644

ELECTROLUMINESCENT LIGHT MEANS Filed April 10 1951 5 s x T [5 LIT i l'l 1': I 1: i l '1' 0 Iii S E E I I: .I:

ll i 4 9 ELECTROLUMIINESCENT LIGHT MEANS Hyman A. Michlin, New York, N. Y.

Application April 10, 1951, Serial No. 220,173

' 1 Claim. or. sis-nos tric energy applied thereto, such as varying electric energy; and an example of which is the ZnS:Cu phosphor, the activator Cu of which can be varied, as is known to the art, to produce an emission in different parts of the spectrum of visible light.

Referring to the drawing, the combined layers of electroluminescent substances 3, 7 and 8, the transparent electrode layers 1 and 4 and the transparent insulation layers 6 are so thin as to form a controllable light source from a thin electroluminescent unit. Each thin layer of electroluminescent substances 3, 7 or 8 is capable of luminescing in a diiferent part of the visible spectrum on application of varying electric energy thereto, and is sandwiched between a thin transparent electrode layer 1 and a thin transparent electrode layer 4 so as to form separate electroluminescent assemblies, and each of said assemblies is arranged in superimposed relation to each other separated by a'thin transparent layer of insulation 6 so as to form a thin color controllable electroluminescent unit with the transparent insulation layers 9 forming the protecting ends of the said thin electroluminescent unit.

The thin transparent electrode layers 1 are impressed with a potential from electric energy sources 2 and the thin transparent electrode layers 4 are impressed with a difierent potential from electric energy sources so that by varying the potential differences and varying the in- United States Patent 0 tensities of potential difierences transmitted to each electroluminescent assembly there is effected a control of the resultant color emitted from the electroluminescent unit in accordance with the intensities of potential differences transmitted to each electroluminescent assembly. The potential differences between the electric energy sources 2 and 5 to produce electroluminescence to electroluminescent substances are known to the prior art, and which can be produced by varying electric energy. In this embodiment varying potential is used to produce electroluminescence.

Arrow 10 indicates the viewing direction from a viewer.

The drawing and specification are for illustration purposes and are not to be construed as restrictive; and, therefore, While I have disclosed one particular means for practicing my invention, it will be obvious that other structures may be of equal advantage, and, I therefore, do not wish to be limited to the particular method set set forth above except as my invention is so limited by the appended claim.

I claim:

A thin electroluminescent light means capable of being electrically controlled to vary resultant color emitted therefrom comprising a plurality of thin electroluminescent layers, each of said thin electroluminescent layers luminescing in a difierent part of the light spectrum, a thin transparent electrode layer on each side of each of said thin electroluminescent layers to thereby form separate electroluminescent assemblies, each of said electroluminescent assemblies arranged in superimposed relation to each other, and a thin layer of transparent insulation separating each of said electroluminescent assemblies.

References Cited in the file of this patent UNITED STATES PATENTS 2,248,985 Gray July 15, 1941 2,270,373 Kallmann et al. Jan. 20, 1942 2,446,791 Schroeder Aug. 10, 1948 2,455,710 Szegho Dec. 7, 1948 2,516,314 Goldsmith July 25, 1950 2,518,200 Sziklai et a1. Aug. 8, 1950 2,252,386 Sziklai et al. May 8, 1951 2,580,073 Burton Dec. 25, 1951 2,590,018 Koller et al Mar. 18, 1952 2,594,740 DeForest et al Apr. 29, 1952 OTHER REFERENCES Scheraga et 211.: Video Handbook, second printing, 1949, William F. Boyce, publisher, page 61. Copy in Div. 54.

US2730644A 1951-04-10 1951-04-10 Electroluminescent light means Expired - Lifetime US2730644A (en)

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795730A (en) * 1951-11-07 1957-06-11 Westinghouse Electric Corp Tricolor television picture tube
US2867739A (en) * 1956-01-05 1959-01-06 Hyman A Michlin Electroluminescent color lamp
US2884528A (en) * 1956-03-05 1959-04-28 Rca Corp Stereoscopic x-ray intensification
US2915661A (en) * 1953-02-19 1959-12-01 Westinghouse Electric Corp Color television screen
US2918594A (en) * 1958-08-01 1959-12-22 Gen Electric Variable color electroluminescent lamp
US2924732A (en) * 1957-07-05 1960-02-09 Westinghouse Electric Corp Area-type light source
US2925532A (en) * 1955-12-01 1960-02-16 Rca Corp Polychromatic electroluminescent means
US2926263A (en) * 1955-12-01 1960-02-23 Rca Corp Picture storage device
US2928980A (en) * 1956-08-16 1960-03-15 Gen Electric Color information presentation system
US2928975A (en) * 1956-08-16 1960-03-15 Gen Electric Color information presentation system
US2929950A (en) * 1955-12-30 1960-03-22 Electronique & Automatisme Sa Electroluminescence devices
US2990473A (en) * 1955-05-04 1961-06-27 Research Corp Method for recording, detecting and measuring radiation and for recording and recalling data
DE1123398B (en) * 1960-02-04 1962-02-08 Philips Nv Electric Lamp Lit
DE1127469B (en) * 1960-07-28 1962-04-12 Owensi Corning Fiberglasi Corp Phosphor plate
US3058003A (en) * 1957-04-08 1962-10-09 Hyman A Michlin Flexibly controlled resultant color display sign
US3103607A (en) * 1963-09-10 Electroluminescent lamp with ceramic dielectric
US3185866A (en) * 1962-02-08 1965-05-25 George F Harpell Magnetic function generator
US3310703A (en) * 1964-10-07 1967-03-21 Brooks William Electroluminescent device and photoresist method for making the same
DE3114200A1 (en) * 1980-04-24 1982-03-25 Lohja Ab Oy Electroluminescent display component
US5336965A (en) * 1990-12-21 1994-08-09 Ford Motor Company Solar load reduction glazing unit with electroluminescent element
US5804918A (en) * 1994-12-08 1998-09-08 Nippondenso Co., Ltd. Electroluminescent device having a light reflecting film only at locations corresponding to light emitting regions
US20050135080A1 (en) * 2003-12-23 2005-06-23 Winsor Corporation Multi-use photoluminescent lamp having integral support structures and method of making the same

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2248985A (en) * 1936-03-04 1941-07-15 Bell Telephone Labor Inc Electro-optical apparatus
US2252386A (en) * 1939-10-28 1941-08-12 American Cyanamid Co Manufacture of surface covering materials
US2270373A (en) * 1939-06-25 1942-01-20 Ig Farbenindustrie Ag Neutron image converter
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube
US2455710A (en) * 1943-12-21 1948-12-07 Rauland Corp Color television system
US2516314A (en) * 1945-07-07 1950-07-25 Rca Corp Color television apparatus
US2518200A (en) * 1947-10-03 1950-08-08 Rca Corp Television system
US2580073A (en) * 1948-05-01 1951-12-25 Bell Telephone Labor Inc Time multiplex television in color
US2590018A (en) * 1950-10-24 1952-03-18 Gen Electric Production of colored images
US2594740A (en) * 1950-02-17 1952-04-29 Forest Lee De Electronic light amplifier

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2248985A (en) * 1936-03-04 1941-07-15 Bell Telephone Labor Inc Electro-optical apparatus
US2270373A (en) * 1939-06-25 1942-01-20 Ig Farbenindustrie Ag Neutron image converter
US2252386A (en) * 1939-10-28 1941-08-12 American Cyanamid Co Manufacture of surface covering materials
US2455710A (en) * 1943-12-21 1948-12-07 Rauland Corp Color television system
US2516314A (en) * 1945-07-07 1950-07-25 Rca Corp Color television apparatus
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube
US2518200A (en) * 1947-10-03 1950-08-08 Rca Corp Television system
US2580073A (en) * 1948-05-01 1951-12-25 Bell Telephone Labor Inc Time multiplex television in color
US2594740A (en) * 1950-02-17 1952-04-29 Forest Lee De Electronic light amplifier
US2590018A (en) * 1950-10-24 1952-03-18 Gen Electric Production of colored images

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3103607A (en) * 1963-09-10 Electroluminescent lamp with ceramic dielectric
US2795730A (en) * 1951-11-07 1957-06-11 Westinghouse Electric Corp Tricolor television picture tube
US2915661A (en) * 1953-02-19 1959-12-01 Westinghouse Electric Corp Color television screen
US2990473A (en) * 1955-05-04 1961-06-27 Research Corp Method for recording, detecting and measuring radiation and for recording and recalling data
US2925532A (en) * 1955-12-01 1960-02-16 Rca Corp Polychromatic electroluminescent means
US2926263A (en) * 1955-12-01 1960-02-23 Rca Corp Picture storage device
US2929950A (en) * 1955-12-30 1960-03-22 Electronique & Automatisme Sa Electroluminescence devices
US2867739A (en) * 1956-01-05 1959-01-06 Hyman A Michlin Electroluminescent color lamp
US2884528A (en) * 1956-03-05 1959-04-28 Rca Corp Stereoscopic x-ray intensification
US2928980A (en) * 1956-08-16 1960-03-15 Gen Electric Color information presentation system
US2928975A (en) * 1956-08-16 1960-03-15 Gen Electric Color information presentation system
US3058003A (en) * 1957-04-08 1962-10-09 Hyman A Michlin Flexibly controlled resultant color display sign
US2924732A (en) * 1957-07-05 1960-02-09 Westinghouse Electric Corp Area-type light source
US2918594A (en) * 1958-08-01 1959-12-22 Gen Electric Variable color electroluminescent lamp
DE1123398B (en) * 1960-02-04 1962-02-08 Philips Nv Electric Lamp Lit
DE1127469B (en) * 1960-07-28 1962-04-12 Owensi Corning Fiberglasi Corp Phosphor plate
US3185866A (en) * 1962-02-08 1965-05-25 George F Harpell Magnetic function generator
US3310703A (en) * 1964-10-07 1967-03-21 Brooks William Electroluminescent device and photoresist method for making the same
DE3114200A1 (en) * 1980-04-24 1982-03-25 Lohja Ab Oy Electroluminescent display component
US5336965A (en) * 1990-12-21 1994-08-09 Ford Motor Company Solar load reduction glazing unit with electroluminescent element
US5804918A (en) * 1994-12-08 1998-09-08 Nippondenso Co., Ltd. Electroluminescent device having a light reflecting film only at locations corresponding to light emitting regions
US20050135080A1 (en) * 2003-12-23 2005-06-23 Winsor Corporation Multi-use photoluminescent lamp having integral support structures and method of making the same
US7128439B2 (en) * 2003-12-23 2006-10-31 Winsor Corporation Multi-use planar photoluminescent lamp and method of making such lamp

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