GB1563349A - Electroluminescent backing sheet for reading and writing in the dark - Google Patents

Electroluminescent backing sheet for reading and writing in the dark Download PDF

Info

Publication number
GB1563349A
GB1563349A GB48121/76A GB4812176A GB1563349A GB 1563349 A GB1563349 A GB 1563349A GB 48121/76 A GB48121/76 A GB 48121/76A GB 4812176 A GB4812176 A GB 4812176A GB 1563349 A GB1563349 A GB 1563349A
Authority
GB
United Kingdom
Prior art keywords
light
panel
sheet
layer
electrical energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB48121/76A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US05/639,200 external-priority patent/US4024404A/en
Application filed by Individual filed Critical Individual
Publication of GB1563349A publication Critical patent/GB1563349A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional [2D] radiating surfaces

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Electroluminescent Light Sources (AREA)
GB48121/76A 1975-12-09 1976-11-18 Electroluminescent backing sheet for reading and writing in the dark Expired GB1563349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/639,200 US4024404A (en) 1975-04-11 1975-12-09 Electroluminescent backing sheet for reading and writing in the dark

Publications (1)

Publication Number Publication Date
GB1563349A true GB1563349A (en) 1980-03-26

Family

ID=24563133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48121/76A Expired GB1563349A (en) 1975-12-09 1976-11-18 Electroluminescent backing sheet for reading and writing in the dark

Country Status (7)

Country Link
US (1) US4103171A (enExample)
JP (1) JPS5271997A (enExample)
CA (1) CA1074282A (enExample)
DE (1) DE2655435C2 (enExample)
FR (1) FR2335012A1 (enExample)
GB (1) GB1563349A (enExample)
NL (1) NL7613676A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142094U (ja) * 1984-08-20 1986-03-18 関西日本電気株式会社 Ｅｌ点灯装置
DE3738414A1 (de) * 1987-11-12 1989-05-24 Bosch Gmbh Robert Vorrichtung zur ausleuchtung von passiven informationsanzeigen, vorzugsweise lcd's
JPH0644076Y2 (ja) * 1988-12-26 1994-11-14 株式会社きもと Ｅｌｄフィルム
DE9101437U1 (de) * 1991-02-08 1991-05-02 Leistenschneider, Nikolaus, 7500 Karlsruhe Lichtplatte als Zeichenplatte
JPH06203958A (ja) * 1992-12-28 1994-07-22 Tokyo Kogyo Boeki Shokai:Kk 面投影装置
US7883227B1 (en) * 1998-08-26 2011-02-08 Andrew Katrinecz Low power, low cost illuminated keyboards and keypads
US6344904B1 (en) 1998-10-03 2002-02-05 John E. Mercer Arrangement for reading from and/or writing to flexible sheet media in a curved configuration and method
JP4626018B2 (ja) * 2000-06-30 2011-02-02 ソニー株式会社 有機エレクトロルミネッセンス表示装置
US6611109B2 (en) * 2001-10-09 2003-08-26 Durel Corporation Infrared emitting EL lamp
US7268491B2 (en) * 2004-12-14 2007-09-11 International Business Machines Corporation Expandable display having rollable material
US9506633B2 (en) 2012-09-06 2016-11-29 Cooledge Lighting Inc. Sealed and sealable lighting systems incorporating flexible light sheets and related methods
US20140369033A1 (en) * 2013-06-12 2014-12-18 Paul Palfreyman Portable lighting systems incorporating deformable light sheets
CN103337222B (zh) * 2013-07-01 2015-07-08 京东方科技集团股份有限公司 柔性显示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3037137A (en) * 1959-05-18 1962-05-29 James F Motson Flexible light source
US3069579A (en) * 1960-03-18 1962-12-18 Westinghouse Electric Corp Electroluminescent device
US3153745A (en) * 1962-02-27 1964-10-20 Madlgan Electronic Corp Portable illuminating device
US3255531A (en) * 1964-04-14 1966-06-14 Arnold N Anderson Measuring tape
US3317722A (en) * 1965-04-26 1967-05-02 Frances L Whitney Electroluminescent lamp
US3832556A (en) * 1972-09-11 1974-08-27 B Schroeder Luminescent backing sheet for writing in the dark
US3879611A (en) * 1973-12-26 1975-04-22 Becky J Schroeder Luminescent backing sheet for writing in the dark

Also Published As

Publication number Publication date
CA1074282A (en) 1980-03-25
FR2335012A1 (fr) 1977-07-08
NL7613676A (nl) 1977-06-13
FR2335012B1 (enExample) 1982-07-30
DE2655435C2 (de) 1986-02-06
US4103171A (en) 1978-07-25
DE2655435A1 (de) 1977-06-16
JPS5271997A (en) 1977-06-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee