EP0872822A3 - Improvements in or relating to variable message display - Google Patents

Improvements in or relating to variable message display Download PDF

Info

Publication number
EP0872822A3
EP0872822A3 EP98201077A EP98201077A EP0872822A3 EP 0872822 A3 EP0872822 A3 EP 0872822A3 EP 98201077 A EP98201077 A EP 98201077A EP 98201077 A EP98201077 A EP 98201077A EP 0872822 A3 EP0872822 A3 EP 0872822A3
Authority
EP
European Patent Office
Prior art keywords
light emitting
emitting diodes
holder
module
diodes
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.)
Ceased
Application number
EP98201077A
Other languages
German (de)
French (fr)
Other versions
EP0872822A2 (en
Inventor
Philip Hall
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.)
Siemens PLC
Original Assignee
Siemens PLC
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
Application filed by Siemens PLC filed Critical Siemens PLC
Publication of EP0872822A2 publication Critical patent/EP0872822A2/en
Publication of EP0872822A3 publication Critical patent/EP0872822A3/en
Ceased 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • G09F27/008—Sun shades, shades, hoods or louvres on electronic displays to minimise the effect of direct sun light on the display

Landscapes

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

Abstract

The module is for use in a variable message display and comprises a holder 8 which can accommodate up to nine light emitting diodes which together form one pixel of the display. The holder is provided with a plurality of fins 11 which extend across and over the light emitting diodes to shade the diodes from sunlight. The ends 12 of the fins 11 are reduced in surface area so that the amount of surface which can reflect light is also reduced. The holder 8 is provided with a plurality of holes 10 to accommodating the light emitting diodes and each hole is provided with a protrusions 13 which are suitably shaped so that light emitting diodes having different diameters can be accommodated, thereby enabling the diodes to be correctly mounted in a tight fitting manner. The module is also provided with retaining means 4, 5 which enable the module to be secured to a printed circuit board.
EP98201077A 1997-04-16 1998-04-06 Improvements in or relating to variable message display Ceased EP0872822A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9707675 1997-04-16
GB9707675A GB2324363B (en) 1997-04-16 1997-04-16 Improvements in or relating to variable message displays

Publications (2)

Publication Number Publication Date
EP0872822A2 EP0872822A2 (en) 1998-10-21
EP0872822A3 true EP0872822A3 (en) 1999-12-01

Family

ID=10810861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98201077A Ceased EP0872822A3 (en) 1997-04-16 1998-04-06 Improvements in or relating to variable message display

Country Status (3)

Country Link
EP (1) EP0872822A3 (en)
CA (1) CA2231730A1 (en)
GB (1) GB2324363B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2324598B (en) * 1997-04-21 2001-04-18 Microsense Systems Ltd A display
US20060077192A1 (en) * 2004-10-07 2006-04-13 Robbie Thielemans Intelligent lighting module, lighting or display module system and method of assembling and configuring such a lighting or display module system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296727A2 (en) * 1987-06-24 1988-12-28 Asahi Kasei Kogyo Kabushiki Kaisha Light shielding screen structure and a process for producing the same
EP0509522A1 (en) * 1991-04-19 1992-10-21 Takiron Co. Ltd. Luminous display device
US5433166A (en) * 1992-10-13 1995-07-18 General Railway Signal Corporation Railway light signal
EP0883100A2 (en) * 1997-05-15 1998-12-09 S.I.M. S.p.a. Casing for variable message displaying devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471414A (en) * 1982-03-11 1984-09-11 Savage John Jun Integrated light unit and circuit element attachable to circuit board
SE8501110L (en) * 1985-03-07 1986-09-08 Torsten Lundin DEVICE ON A LIGHTED SURFACE, PREFERRED A LIGHT SIGN
JP2755080B2 (en) * 1992-12-16 1998-05-20 松下電器産業株式会社 LED display
US5303124A (en) * 1993-07-21 1994-04-12 Avi Wrobel Self-energizing LED lamp
JPH08287719A (en) * 1995-04-10 1996-11-01 Copal Co Ltd Light emitting apparatus
JP3247821B2 (en) * 1995-05-24 2002-01-21 シャープ株式会社 Display device and method of manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296727A2 (en) * 1987-06-24 1988-12-28 Asahi Kasei Kogyo Kabushiki Kaisha Light shielding screen structure and a process for producing the same
EP0509522A1 (en) * 1991-04-19 1992-10-21 Takiron Co. Ltd. Luminous display device
US5433166A (en) * 1992-10-13 1995-07-18 General Railway Signal Corporation Railway light signal
EP0883100A2 (en) * 1997-05-15 1998-12-09 S.I.M. S.p.a. Casing for variable message displaying devices

Also Published As

Publication number Publication date
GB2324363B (en) 2001-05-16
CA2231730A1 (en) 1998-10-16
GB2324363A (en) 1998-10-21
EP0872822A2 (en) 1998-10-21
GB9707675D0 (en) 1997-06-04

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