CA2352821A1 - Electromagnetic display device - Google Patents

Electromagnetic display device Download PDF

Info

Publication number
CA2352821A1
CA2352821A1 CA002352821A CA2352821A CA2352821A1 CA 2352821 A1 CA2352821 A1 CA 2352821A1 CA 002352821 A CA002352821 A CA 002352821A CA 2352821 A CA2352821 A CA 2352821A CA 2352821 A1 CA2352821 A1 CA 2352821A1
Authority
CA
Canada
Prior art keywords
panel
tilting flap
flap
pixel
display device
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.)
Granted
Application number
CA002352821A
Other languages
French (fr)
Other versions
CA2352821C (en
Inventor
Helmut Fischer
Wolfgang Kogler
Rudolf Pongratz
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.)
Annax Anzeigesysteme GmbH
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 DE19802218A external-priority patent/DE19802218B4/en
Application filed by Individual filed Critical Individual
Publication of CA2352821A1 publication Critical patent/CA2352821A1/en
Application granted granted Critical
Publication of CA2352821C publication Critical patent/CA2352821C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09F9/37—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 movable elements
    • G09F9/375—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 movable elements the position of the elements being controlled by the application of a magnetic field

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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Led Device Packages (AREA)

Abstract

The invention relates to an electromagnetic display device, comprising a panel which consists of a number of substantially square pixels which are divided into two parts. Each pixel is provided with a rotatably-mounted, bistable tilting flap which is asymmetrical in relation to its rotational axis.
Said tilting flap covers one of the two portions of the panel surface in the pixel zone when the flap lies in each of its two stable positions. The side of the tilting flap facing the front side of the panel and the portion of the panel in the pixel zone which is covered by the tilting flap in this position has a first colour and the other side of the tilting flap and the other portion of the panel in the pixel zone has a second colour. A permanent magnet is fitted to the tilting flap in close proximity to the rotational axis. The tilting flap is displaced from a first position into a second position by an electromagnet which is located on the reverse side of the panel and is allocated to the pixels and which has a coil body and a core. The display device panel is connected to a base plate which faces the reverse side of said panel and has at least one opening in one section of each pixel. A pin which is located on the base plate is allocated to each opening and is directed towards said opening. The pin contains a recess on the side facing the panel, in which a light-emitting diode is inserted.
CA002352821A 1998-01-22 1999-04-09 Electromagnetic display device Expired - Fee Related CA2352821C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19802218A DE19802218B4 (en) 1998-01-22 1998-01-22 Electromagnetic display device
DE29824339U DE29824339U1 (en) 1998-01-22 1998-01-22 Electromagnetic display device
PCT/DE1999/001102 WO2000062274A1 (en) 1998-01-22 1999-04-09 Electromagnetic display device

Publications (2)

Publication Number Publication Date
CA2352821A1 true CA2352821A1 (en) 2000-10-19
CA2352821C CA2352821C (en) 2007-06-26

Family

ID=27208839

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002352821A Expired - Fee Related CA2352821C (en) 1998-01-22 1999-04-09 Electromagnetic display device

Country Status (6)

Country Link
EP (1) EP1171860B1 (en)
AT (1) ATE277399T1 (en)
CA (1) CA2352821C (en)
DE (2) DE29824339U1 (en)
ES (1) ES2230859T3 (en)
WO (1) WO2000062274A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11841586B1 (en) * 2022-07-21 2023-12-12 Dell Products L.P. Position-adjustable backlight

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501912A1 (en) * 1985-01-22 1986-07-24 Friedrich Merk-Telefonbau GmbH, 8000 München Electromagnetic display device
US4860470A (en) * 1988-02-01 1989-08-29 Nei Canada Limited Single core display device
US5771616C1 (en) * 1996-07-19 2001-07-03 Mark Iv Ind Ltd Display device with disk and led

Also Published As

Publication number Publication date
EP1171860A1 (en) 2002-01-16
WO2000062274A1 (en) 2000-10-19
DE29824339U1 (en) 2000-12-21
ATE277399T1 (en) 2004-10-15
CA2352821C (en) 2007-06-26
DE59910607D1 (en) 2004-10-28
EP1171860B1 (en) 2004-09-22
ES2230859T3 (en) 2005-05-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150409

MKLA Lapsed

Effective date: 20150409