EP0367851B1 - Unité d'affichage en forme de feuille de grande dimension - Google Patents

Unité d'affichage en forme de feuille de grande dimension Download PDF

Info

Publication number
EP0367851B1
EP0367851B1 EP88118582A EP88118582A EP0367851B1 EP 0367851 B1 EP0367851 B1 EP 0367851B1 EP 88118582 A EP88118582 A EP 88118582A EP 88118582 A EP88118582 A EP 88118582A EP 0367851 B1 EP0367851 B1 EP 0367851B1
Authority
EP
European Patent Office
Prior art keywords
display unit
display
light emitting
sheet type
type large
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
EP88118582A
Other languages
German (de)
English (en)
Other versions
EP0367851A1 (fr
Inventor
Issei Tanaka
Akio Uchida
Tadashi Irie
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.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
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 Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to DE3886404T priority Critical patent/DE3886404T2/de
Priority to EP88118582A priority patent/EP0367851B1/fr
Publication of EP0367851A1 publication Critical patent/EP0367851A1/fr
Application granted granted Critical
Publication of EP0367851B1 publication Critical patent/EP0367851B1/fr
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
    • G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs

Definitions

  • the present invention relates to a large display unit which is used outdoors for advertisement, announcement or the like, and more particularly, to a large display unit in which a plurality of display units are combined to constitute a single large display, the display units disposed in rows and columns each displaying one character.
  • a display unit of this kind is described in DE-A-3 037 500.
  • Fig.4 shows a display unit 20 of similar kind.
  • a display panel 21 of the unit 20 made of hard metal or resin is formed with display windows 21a in the form of, for example, 24 x 24 matrix.
  • a light emitting element holder 22 made of, for example, a printed circuit board is mounted on the back of the display plate 21.
  • Light emitting elements such as light emitting diodes (LED) are mounted on the holder 22 to face the display windows 21a and display illuminated dots.
  • a driver circuit board 23 is mounted on the back of the light emitting element holder 22 to receive a character code from an external circuit and convert it into suitable drive signals which are supplied to the light emitting elements to display a corresponding character.
  • the display unit 20 of this type is mainly intended to be used outdoors, it is housed within a water proof casing 24 provided with a water proof connector 24a. Further, the display windows 21a are also covered with glass to seal it from external environment. Thus, the entire structure of the display unit 20 is made water proof.
  • the conventional display unit 20 is associated with many problems much as in the following because of the rigid structure thereof:
  • the display unit comprises a predetermined number of display dots each made of light emitting elements and disposed in matrix manner relative to a display structure, wherein the light emitting elements of each of said display dots are mounted on a separate printed circuit board, and said display structure is made of flexible sheet members which sandwich said display dots which are attached by means of adhesive agent or the like.
  • a sheet type large display unit (hereinunder referred to simply as a display unit) is generally indicated by reference numeral 1.
  • a display surface member 2 of the display unit 1 is adapted to be mounted with display dots 3 disposed in matrix similar to the conventional. For example, 18 x 10, 24 x 24 dot matrix or the like may be selectively used in dependence upon a desired character resolution.
  • display dots 3 disposed in matrix similar to the conventional. For example, 18 x 10, 24 x 24 dot matrix or the like may be selectively used in dependence upon a desired character resolution.
  • a character for example, Chinese character as shown in Fig.2 can be displayed.
  • One character is generally displayed on one display unit 1.
  • the display unit 1 is shown in Fig.3, wherein the display surface member 2 generally of square shape is made of a sheet type transparent resin rich in flexibility, the reverse side of which is coated with an adhesive agent.
  • Each of the display dots 3 is constructed of a desired number of light emitting elements 3b such as light emitting diodes (LEDS) mounted on a substrate 3a such as a printed circuit board.
  • LEDS light emitting diodes
  • 576 display dots 3 are used for a 24 x 24 dot display unit, and each display dot 3 is connected by lead wires 4 to a driver circuit (not shown) to drive it in a specific drive method such as dynamic, static or other drive methods.
  • the display dots 3 on the substrate 3a and the lead wires 4 are fixedly attached to a back sheet 5.
  • the back sheet 5 is covered with the display surface member 2 to fixedly attach them together, to thus assemble the display unit 1 of this invention.
  • the substrate 3a for mounting the display dots 3 may use a printed circuit board either of hard or soft material.
  • the attachment among the display surface member 2, display dots 3 and back sheet 5 may be effected using an adhesive agent, or other means such as high frequency welding whereby peripheral portions thereof are welded.
  • colors of the light emitting elements 3b disposed within each display dot 3 may use red, yellow and green. To selectively activate the light emitting element, it becomes possible to realize a display unit 1 of three colors.
  • the display unit 1 is constructed of the display surface member and back sheet which are both made of flexible material, the entire structure of the display unit 1 is flexible.
  • the display surface member 2 and back sheet 5 are made of sheet material so that the display unit 1 becomes thin and light weighted.
  • the display dots 3 are covered by the display surface member 2 and back sheet 5 so that a sufficient water proof performance is realized.
  • a water proof connector and water proof driver circuit may be provided on the display unit 1 as conventional.
  • the display unit of this invention is applicable to various fields in practical use due to its sheet structure, and has the following advantages:

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (3)

  1. Unité d'affichage en forme de feuille de grande dimension (1) comprenant un nombre prédéterminé de points d'affichage (3) dont chacun est constitué par des éléments émetteurs de lumière (3b) et est disposé de façon matricielle par rapport à une structure d'affichage (2, 5), caractérisée en ce que les éléments émetteurs de lumière (3b) de chacun desdits points d'affichage (3) sont montés sur une plaquette de circuit imprimé séparée (3a) et en ce que ladite structure d'affichage est constituée par des éléments en feuille flexibles (2, 5) qui prennent en sandwich lesdits points d'affichage (3) et qui sont fixés au moyen d'un agent adhésif ou autre.
  2. Unité d'affichage en forme de feuille de grande dimension selon la revendication 1, dans laquelle lesdits éléments émetteurs de lumière (3b) comprennent des diodes émettrices de lumière.
  3. Unité d'affichage en forme de feuille de grande dimension selon la revendication 1 ou 2, dans laquelle les éléments émetteurs de lumière (3b) de deux ou plusieurs couleurs sont prévus.
EP88118582A 1988-11-08 1988-11-08 Unité d'affichage en forme de feuille de grande dimension Expired - Lifetime EP0367851B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3886404T DE3886404T2 (de) 1988-11-08 1988-11-08 Folienartige Grossbildanzeigeeinheit.
EP88118582A EP0367851B1 (fr) 1988-11-08 1988-11-08 Unité d'affichage en forme de feuille de grande dimension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88118582A EP0367851B1 (fr) 1988-11-08 1988-11-08 Unité d'affichage en forme de feuille de grande dimension

Publications (2)

Publication Number Publication Date
EP0367851A1 EP0367851A1 (fr) 1990-05-16
EP0367851B1 true EP0367851B1 (fr) 1993-12-15

Family

ID=8199541

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118582A Expired - Lifetime EP0367851B1 (fr) 1988-11-08 1988-11-08 Unité d'affichage en forme de feuille de grande dimension

Country Status (2)

Country Link
EP (1) EP0367851B1 (fr)
DE (1) DE3886404T2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2036451B1 (es) * 1991-06-12 1995-12-01 Odeco Electronica S A Pantalla luminosa perfeccionada.
DE4223795A1 (de) * 1992-07-20 1994-02-03 Priesemuth W Optoelektronisches Bauelement
GB9222165D0 (en) * 1992-10-22 1992-12-02 Hanover Dispays Limited A display device
ES2088758B1 (es) * 1993-01-18 1997-08-01 Campoy Odena Sergio Pantalla matricial luminosa formadora de imagenes en color.
FR2741986B1 (fr) * 1995-12-05 1998-01-16 Aeg Schneider Automation Dispositif de visualisation pour automate programmable

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH640966A5 (en) * 1979-10-06 1984-01-31 Zettler Elektro Apparate Ag LED arrangement for large-scale display of information
DD200295A1 (de) * 1981-08-12 1983-04-06 Guenter Claus Led-anzeige mit hohem informationsgehalt
GB2180383A (en) * 1985-09-14 1987-03-25 Paul William Baker Illuminated display panel

Also Published As

Publication number Publication date
DE3886404D1 (de) 1994-01-27
EP0367851A1 (fr) 1990-05-16
DE3886404T2 (de) 1994-05-19

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