EP0731435B1 - Magnetisch betriebene Anzeigevorrichtung - Google Patents

Magnetisch betriebene Anzeigevorrichtung Download PDF

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Publication number
EP0731435B1
EP0731435B1 EP95301528A EP95301528A EP0731435B1 EP 0731435 B1 EP0731435 B1 EP 0731435B1 EP 95301528 A EP95301528 A EP 95301528A EP 95301528 A EP95301528 A EP 95301528A EP 0731435 B1 EP0731435 B1 EP 0731435B1
Authority
EP
European Patent Office
Prior art keywords
frame
display unit
magnetically operated
plate
operated display
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 - Lifetime
Application number
EP95301528A
Other languages
English (en)
French (fr)
Other versions
EP0731435A1 (de
Inventor
Pin Chi Kao
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.)
Lite Vision Corp
Original Assignee
Lite Vision 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8221119&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0731435(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lite Vision Corp filed Critical Lite Vision Corp
Priority to EP95301528A priority Critical patent/EP0731435B1/de
Priority to ES95301528T priority patent/ES2127468T3/es
Priority to DE1995607591 priority patent/DE69507591T2/de
Publication of EP0731435A1 publication Critical patent/EP0731435A1/de
Application granted granted Critical
Publication of EP0731435B1 publication Critical patent/EP0731435B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates to a magnetically operated display.
  • a first conventional display includes a matrix of light emitting diodes (LEDS) wherein various groups of the LEDS in the matrix can be selectively turned on simultaneously to present various images.
  • the first conventional display performs well in an environment with a low level of light. However, the efficiency of the first conventional display is considerably reduced if the level of light is increased, for example, a sunny day, and the noticeability of the display is impaired.
  • a second conventional display includes a matrix of magnetically operated display units each including a magnet embedded in a pivotable plate including a first surface with a color different from that of the remaining portion thereof and a second surface with a color identical to that of the remaining portion thereof.
  • the second surfaces of different groups of the pivotable plates in the matrix are selectively exposed to view so as to show different images.
  • the second conventional display shows clear images in a bright environment, however, visibility of the first surfaces of the pivotable plates is greatly reduced in the dark as the first surfaces of the plates do not produce light.
  • FIG. 1 is a perspective view of a magnetically operated display.
  • FIG. 1 shows a magnetically operated display unit 2 including a frame 4 including a base 6 defining five apertures (not shown).
  • Two ferromagnetic rods 8, two ferromagnetic pins 10 and a light emitting diode (LED) 12 are correspondingly inserted through the apertures defined in the base 6.
  • Each of the ferromagnetic rods 8 includes a lower tip and an upper tip.
  • the LED 12 includes two leads 13.
  • a wire 14 is sequentially wound around the ferromagnetic rods 8 so that a solenoid 16 is formed on each of the ferromagnetic rods 8.
  • the wire 14 includes two ends each soldered to a corresponding one of the ferromagnetic pins 10.
  • the lower tips of the ferromagnetic rods 8 are linked to each other by means of a ferromagnetic strip 17 so that the ferromagnetic rods 8 and the ferromagnetic strip 17 form a U-shaped ferromagnetic element.
  • Each of the ferromagnetic pins 10 can be inserted into a socket (not shown) so that the magnetically operated display unit can be connected with a circuit 18.
  • the LED 12 is also connected with the circuit 18.
  • Two arms 20 project upwardly from the frame 4.
  • Two fingers 21 project upwardly from each of the arms 20.
  • Each of the fingers 21 includes an inner face opposite to the remaining one of the fingers 21.
  • a bulbous portion is formed on the inner face of each of the fingers 21 near a tip thereof thereby defining a narrow entrance to a recess defined between the two fingers.
  • a plate 22 includes a color identical to that of the frame 4.
  • Two axles 24 project from the plate 22 in two opposite directions. Each of the axles 24 is pushed past the tips of the fingers 21 projecting from a corresponding one of the arms 20 so that each of the axles 24 is retained between the fingers 21 projecting from a corresponding one of the arms 20.
  • the plate 22 is pivotably mounted on the frame 4.
  • a magnet 26 includes a north pole at a tip and a south pole at an opposite tip. The magnet 26 is embedded in the plate 22. The tips of the magnet 26 are located between and in line with the upper tips of the ferromagnetic rods 8.
  • the plate 22 defines a cutout 28 through which the upper tip of one of the ferromagnetic rods 8 and the LED 12 are inserted.
  • a reflector 30 includes a color different from that of the plate 22.
  • the reflector 30 is adhered to the plate 22.
  • the reflector 30 defines a cutout 32 through which the upper tip of one of the ferromagnetic rods 8 and the LED 12 are inserted.
  • the reflector 30 conforms in profile to the plate 22.
  • the circuit 18 includes a first switch SW1, a second switch SW2 and a third switch SW3.
  • the first switch SW1 is connected with an end of the wire 14.
  • the second switch SW2 is connected with the remaining end of the wire 14.
  • the third switch SW3 is connected with the LED 12.
  • Each of the switches SW1 and SW2 can be turned between a ground electrode and a positive electrode.
  • the first switch SW1 is turned to the positive electrode and the second switch SW2 is turned to the ground electrode so as to direct a current through the solenoids 16 in a first direction, thus producing a first magnetic field between the upper tips of the ferromagnetic rods 8. Then, both of the switches SW1 and SW2 can be turned to the positive electrode or the ground electrode whilst the first magnetic field remains.
  • the first switch SW1 can be turned to the ground electrode and the second switch SW2 is turned to the positive electrode so as to direct a current through the solenoids 16 in a second direction opposite to the first direction, thus producing a second magnetic field between the upper tips of the ferromagnetic rods 8.
  • the direction of the first magnetic field is opposite to the direction of the second magnetic field.
  • both of the switches SW1 and SW2 can be turned to the positive electrode or the ground electrode whilst the second magnetic field remains.
  • the first magnetic field or the second magnetic field is produced between the upper tips of the ferromagnetic rods 8, therefore the plate 22 to which the magnet 26 is attached is turned between two opposite positions.
  • the third switch SW3 can be turned on so that LED 12 emits light.
  • the LED 12 includes an upper tip which should be located above the combination of the plate 22 and the reflector 30 so that the LED 12 is clearly visible.
  • the upper tip of the LED 12 should be located below the upper ends of the ferromagnetic rods 8 so that the combination of the plate 22 and the reflector 30 will not be hindered by means of the LED 12 when the combination of the plate 22 and the reflector 30 is pivoted to a position opposite to the position as shown in FIG. 1.
  • the ferromagnetic rods 8 and the ferromagnetic strip 17 can be replaced with a one-piece U-shaped ferromagnetic element (not shown).
  • a transparent panel (not shown) is located in front of the magnetically operated display unit 2.
  • the combination of the plate 22 and the reflector 30 is pivoted when it is in use thus resulting in a static charge in the magnetically operated display unit 2.
  • the static charge produced in the transparent panel and the static charge produced in the magnetically operated display unit 2 will attract each other thus causing difficulty for the pivoting of the combination of the plate 22 and the reflector 30.
  • the static charge produced in the magnetically operated display unit 2 should be removed.
  • a conductive agent is added in plastic from which the frame 4, the plate 22 and the reflector 30 are made so that frame 4, the plate 22 and the reflector 30 are conductive to a limited extent for releasing the static charge to the leads of the LED 12 for removing the static charge.

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)

Claims (9)

  1. Magnetisch betriebene Display-Einheit (2), umfassend
    einen Rahmen (4) mit einer Farbe,
    eine an dem Rahmen schwenkbar montierte Scheibe (22) mit einer ersten Oberfläche (30), deren Farbe von der Farbe des Rahmens (4) verschieden ist, und einer zweiten Oberfläche, deren Farbe mit derjenigen des Rahmens (4) übereinstimmt, und mit einem an ihr befestigten Magneten (26),
    zwei ferromagnetische Stäbe (8), wobei die Spitzen des Magneten (26) zwischen den oberen Enden der ferromagnetischen Stäbe (8) angeordnet sind und wobei die ferromagnetischen Stäbe eine Spule aufweisen, um ein erstes magnetisches Feld und ein zweites magnetisches Feld zu erzeugen, dessen Richtung entgegengesetzt zu der Richtung des ersten magnetischen Felds ist, wenn ein Strom selektiv in gegenläufige Richtungen durch die Spule fließt, um die Scheibe (22) mit dem daran befestigten Magneten (26) zwischen zwei entgegengesetzten Stellungen zu bewegen, bei denen selektiv eine der Oberflächen der Scheibe (22) für einen Betrachter sichtbar ist, und
    eine an dem Rahmen befestigte Lichtquelle,
    dadurch gekennzeichnet, daß
    die Lichtquelle eine Leuchtdiode ist und
    die Scheibe einen Ausschnitt zur Aufnahme der Leuchtdiode (12) und eines der Enden der ferromagnetischen Stäbe (8) aufweist, so daß die Spitze der Leuchtdiode in einer Ebene oberhalb der Scheibe (22) derartig angeordnet ist, daß sie klar sichtbar ist.
  2. Magnetisch betriebene Display-Einheit (2) nach Anspruch 1, welche einen Schalter zum selektiven Ein- und Ausschalten der Leuchtdiode aufweist.
  3. Magnetisch betriebene Display-Einheit (2) nach Anspruch 1 oder 2, bei welcher zwei Spulen jeweils auf einem entsprechenden ferromagnetischen Stab (8) befestigt sind und die Spulen (16) von verschiedenen Teilen eines Drahts gebildet werden.
  4. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, bei welcher die Spitzen des Magneten (26) zwischen den oberen Enden der ferromagnetischen Stäbe (8) und mit diesen fluchtend angeordnet sind.
  5. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, bei welcher Schalter, die dazu vorgesehen sind, Strom in entgegengesetzte Richtungen durch die Spule (16) fließen zu lassen, in eine Position gebracht werden können, bei der kein Strom fließt, während das magnetische Feld erhalten bleibt.
  6. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, bei welcher der Rahmen (4) eine Basis aufweist, in der zwei Öffnungen vorhanden sind, in die jeweils einer der ferromagnetischen Stäbe (8) eingesteckt ist.
  7. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, umfassend einen an der ersten Oberfläche der Scheibe (22) befestigten Reflektor (30), wobei der Reflektor eine von dem Rahmen verschiedene Farbe hat.
  8. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, bei welcher der Rahmen (4) und die Scheibe (22) aus einem mit einem elektrisch leitenden Mittel versehenen Kunststoff hergestellt sind, so daß der Rahmen (4) und die Scheibe (22) im beschränkten Umfang elektrisch leitend sind.
  9. Magnetisch betriebene Display-Einheit (2) nach einem der vorhergehenden Ansprüche, umfassend einen von dem Rahmen (4) nach oben ragenden Arm (20) und zwei von dem Arm nach oben ragende Finger (21), wobei jeder der Finger (21) eine dem anderen Finger (21) gegenüberliegende Fläche aufweist und an der inneren Fläche nahe dem Oberende des Fingers ein vorgewölbter Abschnitt ausgebildet ist, so daß ein enger Einlaß zu einer zwischen den beiden Fingern (21) gebildeten Ausnehmung entsteht.
EP95301528A 1995-03-08 1995-03-08 Magnetisch betriebene Anzeigevorrichtung Expired - Lifetime EP0731435B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP95301528A EP0731435B1 (de) 1995-03-08 1995-03-08 Magnetisch betriebene Anzeigevorrichtung
ES95301528T ES2127468T3 (es) 1995-03-08 1995-03-08 Pantalla operada magneticamente.
DE1995607591 DE69507591T2 (de) 1995-03-08 1995-03-08 Magnetisch betriebene Anzeigevorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95301528A EP0731435B1 (de) 1995-03-08 1995-03-08 Magnetisch betriebene Anzeigevorrichtung

Publications (2)

Publication Number Publication Date
EP0731435A1 EP0731435A1 (de) 1996-09-11
EP0731435B1 true EP0731435B1 (de) 1999-01-27

Family

ID=8221119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95301528A Expired - Lifetime EP0731435B1 (de) 1995-03-08 1995-03-08 Magnetisch betriebene Anzeigevorrichtung

Country Status (3)

Country Link
EP (1) EP0731435B1 (de)
DE (1) DE69507591T2 (de)
ES (1) ES2127468T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU221962B1 (hu) * 1996-03-05 2003-03-28 Mark Iv Industries Limited Kijelző elrendezés
DE59802569D1 (de) 1997-09-30 2002-01-31 Transit Media Gmbh Systemtechn Montage von kippsegmentanzeigen hinter scheiben
DE19813650A1 (de) * 1998-03-27 1999-07-22 Transit Media Gmbh Lumineszenzdiode, Matrixanzeige und Kippsegmentanzeige

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5022171A (en) * 1989-08-28 1991-06-11 The Staver Company Inc. Matrix display assembly having multiple point lighting

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243978A (en) 1979-10-05 1981-01-06 Ferranti-Packard Limited Display or indicating device with magnetic stop
US4531318A (en) 1983-09-16 1985-07-30 Nei Canada Limited Display or indicating element with bent core
US4577427A (en) 1984-05-14 1986-03-25 Nei Canada Limited Display
US4860470A (en) 1988-02-01 1989-08-29 Nei Canada Limited Single core display device
FR2631729B1 (fr) * 1988-05-20 1994-05-06 Bodet Pierre Dispositif pour l'affichage de chiffres ou similaires au moyen de segments basculants
US5055832A (en) * 1989-06-09 1991-10-08 Dayco Products Canada Inc. Display element with notched disk
US4974353A (en) 1989-08-28 1990-12-04 The Staver Company Matrix display assembly having multiple point lighting
US5050325A (en) * 1990-05-14 1991-09-24 Dayco Products Canada, Inc. Display indicator and reed switch
CA2087234C (en) * 1992-02-18 1998-12-01 Mark Iv Ids Corp. Corner notched disk
SE500237C2 (sv) * 1992-09-22 1994-05-09 Mobitec International Ab Förevisningselement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5022171A (en) * 1989-08-28 1991-06-11 The Staver Company Inc. Matrix display assembly having multiple point lighting

Also Published As

Publication number Publication date
DE69507591D1 (de) 1999-03-11
DE69507591T2 (de) 1999-08-26
ES2127468T3 (es) 1999-04-16
EP0731435A1 (de) 1996-09-11

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