GB1406169A - Alpha-numeric character display devices - Google Patents

Alpha-numeric character display devices

Info

Publication number
GB1406169A
GB1406169A GB1984473A GB1984473A GB1406169A GB 1406169 A GB1406169 A GB 1406169A GB 1984473 A GB1984473 A GB 1984473A GB 1984473 A GB1984473 A GB 1984473A GB 1406169 A GB1406169 A GB 1406169A
Authority
GB
United Kingdom
Prior art keywords
diodes
window
plate
opaque layer
alpha
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
GB1984473A
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.)
Sony Corp
Original Assignee
Sony Corp
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 JP4288572A external-priority patent/JPS5249718B2/ja
Priority claimed from JP4288672A external-priority patent/JPS5249719B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB1406169A publication Critical patent/GB1406169A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)

Abstract

1406169 Alpha-numeric displays SONY CORP 26 April 1973 [28 April 1972 (2)] 19844/73 Heading G5C An alpha-numeric display device comprises a transparent or translucent plate 10, an opaque layer 11 covering the plate and containing an array of windows 12, a plurality of LED's 13 mounted, with their junctions parallel to the plate, on the opaque layer and light transmitting layers 14 optically coupling the diodes to the windows. Two relatively short diodes illuminate each horizontal window and one long diode each vertical window. A window for a decimal point may be provided. The plate may carry a plurality of arrays each with a separate opaque layer of Au, Al or Cu, acting as a common electrode. A further Au layer may be added if the layer is Cu. The device is formed by mounting a strip of LED material on the opaque layer and sandblasting the strip to divide it into two rows of diodes, each row associated with an array on the side adjacent the row. The device is cleaned in H 2 SO 4 and H 2 O 2 and boiled in H 2 O 2 . Transparent, insulating and reflecting layers are added and the reflector above each window is roughened to scatter emergent light. A pattern of conductive resin strips extending across the diodes is added to connect corresponding diodes in each array and diodes illuminating the same window. The LED strip may be divided into diodes of triangular plan form.
GB1984473A 1972-04-28 1973-04-26 Alpha-numeric character display devices Expired GB1406169A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4288572A JPS5249718B2 (en) 1972-04-28 1972-04-28
JP4288672A JPS5249719B2 (en) 1972-04-28 1972-04-28

Publications (1)

Publication Number Publication Date
GB1406169A true GB1406169A (en) 1975-09-17

Family

ID=26382632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1984473A Expired GB1406169A (en) 1972-04-28 1973-04-26 Alpha-numeric character display devices

Country Status (4)

Country Link
US (1) US3869637A (en)
CA (1) CA996666A (en)
DE (1) DE2321640C3 (en)
GB (1) GB1406169A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000437A (en) * 1975-12-17 1976-12-28 Integrated Display Systems Incorporated Electric display device
DE3223031A1 (en) * 1982-06-19 1983-12-22 Olympia Werke Ag, 2940 Wilhelmshaven PRINTER WITH AN OPTICAL PRINT HEAD FOR LINEAR RECORDING OF GRAPHICS AND TEXT INFORMATION
DE3633203A1 (en) * 1986-09-30 1988-03-31 Siemens Ag LIGHT EMISSION DIODES (LED) - DISPLAY DEVICE
JP2693849B2 (en) * 1990-04-24 1997-12-24 シャープ株式会社 Flat light source device
US5485145A (en) * 1991-03-11 1996-01-16 Emergency Safety Products, Inc. Electroluminescent sign conversion kit
US6183109B1 (en) * 1998-11-17 2001-02-06 Premark Rwp Holdings, Inc. Illuminated moldings and method for illuminating therewith
US6649437B1 (en) * 2002-08-20 2003-11-18 United Epitaxy Company, Ltd. Method of manufacturing high-power light emitting diodes
US7898821B2 (en) * 2003-12-10 2011-03-01 Nokia Corporation Apparatus and arrangement for shielding a light emitting diode against electrostatic discharge
US7675231B2 (en) * 2004-02-13 2010-03-09 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Light emitting diode display device comprising a high temperature resistant overlay
WO2006054228A2 (en) * 2004-11-18 2006-05-26 Koninklijke Philips Electronics N.V. Illuminator and method for producing such illuminator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555335A (en) * 1969-02-27 1971-01-12 Bell Telephone Labor Inc Electroluminescent displays
US3746853A (en) * 1972-03-10 1973-07-17 Bell Canada Northern Electric Light emitting devices

Also Published As

Publication number Publication date
DE2321640B2 (en) 1974-10-31
DE2321640A1 (en) 1973-11-08
US3869637A (en) 1975-03-04
DE2321640C3 (en) 1975-06-19
CA996666A (en) 1976-09-07

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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