EP1728232A2 - Corps d'affichage pour enseignes lumineuses - Google Patents

Corps d'affichage pour enseignes lumineuses

Info

Publication number
EP1728232A2
EP1728232A2 EP05728963A EP05728963A EP1728232A2 EP 1728232 A2 EP1728232 A2 EP 1728232A2 EP 05728963 A EP05728963 A EP 05728963A EP 05728963 A EP05728963 A EP 05728963A EP 1728232 A2 EP1728232 A2 EP 1728232A2
Authority
EP
European Patent Office
Prior art keywords
display body
body according
light
layer
base body
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.)
Withdrawn
Application number
EP05728963A
Other languages
German (de)
English (en)
Inventor
Enno Ramb
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.)
Individual
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 DE202004014390U external-priority patent/DE202004014390U1/de
Application filed by Individual filed Critical Individual
Publication of EP1728232A2 publication Critical patent/EP1728232A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency

Definitions

  • Neon signs made of individual luminous bodies which are put together in the form of individual letters to form words or names, are known. These illuminants are made of transparent material and are equipped with illuminants so that they glow out of themselves.
  • the lamps are cut out of translucent plastic or glass plates in the desired font and size and provided with grooves and bores into which the lamps - usually light emitting diodes (LED) - are inserted and electrically connected.
  • LED light emitting diodes
  • DE 299 14 456 also provides for the plastic body to be provided with an all-round frame and for the electrical wiring to close the rear side with a cover flap. It is also proposed here to bring the plastic bodies into any shape using special milling processes and to use the light-emitting diodes in accordance with the shape of the plastic body in such a way that complete illumination of the transparent plastic body is achieved from the inside.
  • This form of neon sign is taken up in DE 201 06 203 and expanded in such a way that the light-emitting diodes are cast into the plastic body and the rear is provided with a reflective lens.
  • All of the proposed designs allow the light emitted by the lamps to emerge to the front or to the sides. However, edges occur through the grooves and bores, which can impair the luminous effect and the transparent surface adhesion of the luminous element.
  • the illuminants or the wiring of the illuminants are, so to speak, depicted on the illuminated surface. In particular, when the light fixtures are used outdoors, there are considerable temperature fluctuations which, in view of the different expansion coefficients of the materials used, can lead to the wiring being torn off.
  • the invention is therefore based on the object of improving the homogeneity of the illumination in display bodies for neon signs and of increasing the reliability.
  • the object is achieved in that the first depressions with the illuminants arranged therein are cast with a transparent casting agent.
  • the potting means establishes a material connection between the illuminant and the material of the base body that gives the illuminant. Through this transparent casting agent, the light is guided much better into the base body. This optically visible transitions in the area of the first depressions are at least reduced in their optical effect.
  • This potting of the first depressions also ensures that high mechanical strength is achieved between the illuminant and the base body. This essentially ensures that no damage to the illuminant is caused when the base body is subjected to mechanical or thermal stresses.
  • second depressions are made in the base body, in which electrically conductive connections are arranged. These electrically conductive connections are electrically conductively connected to the lamps.
  • the second connections are cast with a second transparent casting compound. While it is particularly important in the case of the first encapsulation means to achieve good light guidance between the illuminant and the base body, it is important in the case of the second encapsulation means that on the one hand this does not hinder the propagation of the light within the base body and on the other hand it provides mechanical stability the electrically conductive connections.
  • first or second casting compound consist of a casting resin.
  • Casting resin has the advantage that it is very easy to process, in particular pour it into the first or second recesses, and cures completely.
  • a casting resin can be expediently selected which consists of a part of resin and a part of hardener.
  • the first and / or the second potting means consist of an elastic material.
  • the elasticity of the potting compound material ensures that, on the one hand, thermal or mechanical tensions between the illuminants or the wiring can be well absorbed and that there are no line breaks or tears.
  • the elastic material offers the possibility of mechanically deforming the base body after the illuminants and the electrical lines have been introduced.
  • the base body can be constructed as a flat plate, in the rear of which the first and second depressions are introduced, the illuminants and the wiring are arranged, and then the elastic material is introduced as a potting compound. Thereafter, this base body can undergo a thermal deformation process, for example it can be curved.
  • an acrylic casting resin lends itself as the first and / or second casting compound.
  • Acrylic casting resins are mostly very liquid materials before solidification (often also referred to as hardening, whereby hardness in the generally understandable sense is never achieved here), which are suitably incorporated into the first th and / or second recesses can be poured. Due to the high viscosity of this material, it flows very smoothly into all gaps. After completion of the hardening process, it represents good flexibility with high thermal elasticity, high mechanical elasticity with good deformability.
  • One and the same material is expediently used as the first and second casting compound. If different materials can also be used, e.g. B. to take into account different tasks of the materials for the illuminant or the electrical connections, in most cases the same material, which is cheaper to manufacture, is suitable for the first and second encapsulants.
  • one or more surfaces of the base body are provided with a light-tight, a light-transparent or translucent layer.
  • a wide variety of effects can be achieved on the display body.
  • the light-tight layers for example, covers that should appear dark on the display body can be covered.
  • a further homogenization of the light exit can be achieved with the light-permeable layers and translucent layers can be used for the realization of optical effects or as protective layers.
  • a translucent or partially translucent layer to consist of a colored layer. Very bright white illuminants can thus be used; the colors in the lights are then realized through these layers, which act as light filters.
  • the layer expediently consists of a film.
  • the foils are made-up materials and, on the other hand, can be processed very well and very individually. Such film layers can thus also be applied subsequently to the display body.
  • the Layer as a layer reflecting the light at least partially in the base body.
  • the layer is designed as a reflective or partially reflective layer. It cannot be ruled out that this layer is provided with a further layer which is also translucent, partially translucent or opaque. The reflection of the light into the base body improves the homogenization of the light distribution in the base body and thus illuminates a display body more uniformly. It is conceivable, for example, to coat the outside of the base body with a partially transparent reflection layer as part of a sputtering process and then to coat this base body coated with further decorative layers, in particular with foils.
  • the display body is designed as a raised body in that the base body has a side surface extending between the front and the back. As a rule, the side surface is at right angles to the front and the back. This creates block-like display bodies.
  • the front is provided with the light-tight layer with a light emission via the side surface.
  • the display body appears dark when viewed from the front.
  • the side surface and possibly also the back can emit light in this embodiment.
  • Another embodiment of the invention provides that the front and the side surface with the light-tight layer is provided with a light exit via the back. If such a display body is mounted, for example, on a wall, the wall behind it is irradiated by the light exit on the rear, thereby realizing indirect illumination of the display body.
  • the front and the side surface with the light-tight layer is provided with a light emission via the front and / or the side surface such that an edge remains in the front and / or the side surface until the light emerges.
  • LED Light emitting diodes
  • OLED organic light emitting diodes
  • LEDs are particularly suitable for the manufacture of the display body, since on the one hand they have a very high light yield and on the other hand they have a very long service life.
  • organic light emitting diodes consist of organic layers that are built up in low-temperature processes. In particular, if the base body is made of plastic, there is the possibility of switching off this organic material in the depressions and thus realizing the luminosity via OLED.
  • the direction of radiation of an illuminant into the base body is perpendicular to the side from which the illuminant is inserted, perpendicular to this side or parallel to this side.
  • the direction of radiation is selected depending on the application. In the case of a retroreflective display body, for example, a radiation direction away from the base body makes sense. In the case of a side or front radiating display body, a radiation direction can extend into the base body or transversely to the essentially flat configuration of the base body.
  • the radiating side of the SMD component points in the direction of the base body. It has been found that this The type of SMD introduced is less sensitive to mechanical damage, including mechanical influences that are caused by the manufacturing process.
  • first depressions are designed as blind holes.
  • second depressions can also be formed as grooves which run between the first depressions.
  • the illuminants are then inserted into the blind holes.
  • the second recesses allow a power line between the individual lamps, since they then extend from one lamp to the other.
  • the first depressions can be designed as a groove.
  • the lamps can then be inserted into this groove if the groove has a width which corresponds to the diameter of the lamp. But there is also the possibility that the illuminants are inserted into this groove in different installation positions. After the encapsulation, the illuminants are then locked.
  • the second depressions are two grooves each, which run laterally next to the first depressions.
  • the electrical connections, in particular the current rails, can then be laid in these two grooves, which are thus electrically insulated from one another in a simple manner.
  • the grooves are designed in several stages. The resulting paragraphs can be used to insert electrical cables or other supplements.
  • control electronics for the lamps can be arranged in the first and / or the second recess.
  • the invention can be implemented in that the illuminants are introduced from the front or from the rear.
  • the illuminants can be usefully inserted from the back, since the wiring and connections are then also not visible from the front.
  • other installation options are also possible in that the illuminants are introduced from the front, in particular when the front is provided with an opaque layer. This can offer special optical effects, but also advantages during assembly.
  • the base body has a block-like shape and thus has side faces
  • the illuminants can be introduced from the side face.
  • the base body can thus also be designed as a so-called front radiator, in which the illuminants are introduced in all side surfaces and thus the brightness within the base body, which decreases with the square of the distance from the illuminant, is compensated.
  • a plastic can also be used in which the molecules are rotated by means of a special molecular arrangement within the acrylic in such a way that a good reflection of the light inside the base body results in a forward direction.
  • the groove has a groove base surface which is deeper in the material of the base body to the side from which it is introduced. Furthermore, this groove shows side surfaces extending from the groove base surface in the direction to the side in which the groove is introduced.
  • a first busbar which is used to connect to a first connection of a power supply, is then introduced between a slot side and the slot base.
  • a second busbar for connection to a second connection to the power supply is arranged between the other slot side and the slot base.
  • a current path which is at least provided with a lamp, is connected between the first and the second busbar.
  • a series resistor and at least one LED, which are connected in series in the current path, are preferably located in a current path. These longitudinally extending current paths can then be inserted lengthways into the groove.
  • the groove has a first longitudinal extent and the current path is designed to extend longitudinally in a second longitudinal extent.
  • the second longitudinal extension, namely that of the current path, is inclined to the first longitudinal extension, these two longitudinal extensions enclosing an acute angle.
  • the electrical conductors are designed as flexible conductors.
  • the electrical conductors do not necessarily have to consist of so-called stranded wire. It is also sufficient that a single wire connection is provided, which in turn has a certain flexibility.
  • the advantage of this flexibility in the electrical conductors is that on the one hand thermal and mechanical stresses can be compensated for and on the other hand mechanical deformation after assembly is possible.
  • the invention is also achieved in that the back of the base body is provided with a layer designed as an OLED.
  • the OLED has the property of illuminating the entire surface. By applying a layer, this layer can be firmly attached to the base body, so that here too a high mechanical strength and subsequent deformability are ensured. OLED can be used to the extent that mechanical processing in the form of indentations in the base body can be avoided.
  • the OLED is applied to a film, which in turn is covered with an elastic adhesive Base area is connected.
  • This elastic adhesive in turn ensures the properties mentioned of the good deformability of the base body and the compensation of thermal and mechanical stresses.
  • one or more surfaces of the base body are provided with a light-tight, light-transparent or translucent layer.
  • the coating of the base body prefferably consist of a film. Films are very easy to handle and are a simple and clean way of coating.
  • the layer form a layer that at least partially reflects the light into the base body.
  • the light emitted by an OLED is inherently relatively homogeneous, the arrangement can be homogenized even further by such an arrangement of multiple reflection.
  • the base body has a side surface extending between the front and the back. This configuration results in an essentially block-shaped body of a display body.
  • the side surface can also be used to hold lamps or to emit light.
  • the front of the base body is provided with a light-tight layer with a light emission via the side surface.
  • the front and the side surface is provided with a light-tight layer with a light emission from the back. This creates a so-called reflector.
  • the OLED can either be designed as a transparent OLED, the light penetrating through the OLED layer itself on the back or the OLED with its illuminated side facing away from the back.
  • the front and the side surface are provided with a light-tight layer with a light emission via the front and / or the side surface in such a way that an edge to the light exit remains in the front and / or the side surface , This enables a display body to be realized that is only visible in its contours.
  • FIG. 1 shows a longitudinal section through a display body according to the invention
  • FIG. 2 shows a cross section through a display body according to the invention as a reflector
  • FIG. 3 shows a cross section through a display body according to the invention as a rear and side reflector
  • FIG. 4 shows a cross section through a display body according to the invention as an edge front radiator
  • FIG. 5 shows a display body according to the invention as a side emitter
  • FIG. 6 shows a cross section along the line VI-VI in FIG. 8 through a display body according to the invention with a common groove
  • FIG. 7 is a plan view of a display according to the invention body with a current path
  • FIG. 8 is a plan view of a display body according to the invention with an obliquely arranged current path
  • FIG. 9 shows an electrical circuit of the current path; and FIG. 10 shows a cross section through an inventive display element with an OLED.
  • the display body 1 consists of a base body 2, which is made of clear or opaque solid plastic.
  • This base body 2 has a front side 3 and a rear side 4 opposite the front side 3. Furthermore, the base body 2 has 4 side surfaces 5 between the front side 3 and the rear side.
  • first recesses 6 are made in the base body 2. These first recesses 6 are used to hold lamps 7, in this case LEDs.
  • Busbars 8 are provided for powering the LED. These busbars 8 are located in second recesses 9. There are essentially two options. One possibility is shown in FIGS. 2 to 5, with a separate second depression in the form of a groove being made for each of the busbars 8.
  • Front 3 or from the side surface 5 are introduced into the base body.
  • the common groove 11 then has a groove base surface 12 on the side 2, 3 or 5 from which the groove is introduced.
  • Groove side surfaces 13 extend from this groove base surface to side 2, 3 or 5.
  • the busbars 8 are now arranged in the corners, ie between the groove side surfaces 13 and the groove base surface 12.
  • a current path 14 is connected between the busbars 8.
  • the current path 14 consists of a series resistor 15 and one or more LEDs 7.
  • the current path 14 can be arranged in such a way that it runs in a longitudinally extending groove 11 by means of the same longitudinal extension 16 as the groove itself. This is shown in FIG. 7. Another possibility is to bring the current path 14, which has a longitudinal extension 17, obliquely between the current path 14, so that the longitudinal extension 17 forms an acute angle ⁇ with respect to the longitudinal extension 16.
  • the display body according to FIG. 2 is a rear radiator. This is because an opaque layer 18 is applied to the side surfaces 5 and the front 3. Between the opaque
  • Layer 18 and the front 3 or the side surface 5 is still arranged in a manner not shown, a reflective layer.
  • 3 is a rear and side reflector. Only the front is covered with an opaque layer 18.
  • the opaque layer 18 on the front side 3 leaving a small edge on the outer edge of the front side 3, so that the light from this edge can leak.
  • FIG. 5 A configuration similar to that in FIG. 4 is selected in FIG. 5, with the difference that no light permeable layer is arranged and thus the edge area of the front 3 and the side surfaces emit light.
  • a second embodiment has a coating on the back of the base body 2 with an OLED layer 19. Light penetrates into the base body 2 through the OLED layer 19.
  • the base body 2 is provided on its front side with an opaque layer 18 and only an exposed edge area emits light.
  • the flexibility of the display body is ensured by the fact that the OLED layer 19 itself is flexible, so that the base body 2 can itself be shaped, for example curved.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

L'invention concerne un corps d'affichage pour enseignes lumineuses, comportant un corps de base en matière plastique compacte, transparente ou opaque, qui présente une face avant et une face arrière opposée à la face avant, de premières cavités étant aménagées dans le corps de base et des éléments lumineux étant noyés dans le corps de base, ou bien un corps d'affichage de ce type, mais toutefois sans cavités. L'invention vise à augmenter l'homogénéité de l'éclairage dans des corps d'affichage pour enseignes lumineuses et à renforcer la fiabilité. A cet effet, les premières cavités sont encapsulées conjointement avec les éléments lumineux disposés dedans, avec un agent de remplissage transparent.
EP05728963A 2004-03-18 2005-03-18 Corps d'affichage pour enseignes lumineuses Withdrawn EP1728232A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202004004374 2004-03-18
DE202004014390U DE202004014390U1 (de) 2004-03-18 2004-09-16 Kunststoffkörper für Leuchtreklamen
PCT/DE2005/000511 WO2005091254A2 (fr) 2004-03-18 2005-03-18 Corps d'affichage pour enseignes lumineuses

Publications (1)

Publication Number Publication Date
EP1728232A2 true EP1728232A2 (fr) 2006-12-06

Family

ID=34994441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05728963A Withdrawn EP1728232A2 (fr) 2004-03-18 2005-03-18 Corps d'affichage pour enseignes lumineuses

Country Status (3)

Country Link
EP (1) EP1728232A2 (fr)
DE (1) DE112005001142A5 (fr)
WO (1) WO2005091254A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPD20080356A1 (it) * 2008-12-02 2010-06-03 Marco Masiero Pannello perfezionato per la realizzazione di mobili, controsoffitti, pareti divisorie, complementi d'arredo e simili.
DE102018106199A1 (de) * 2018-03-16 2019-09-19 Ambright GmbH Leuchte zur Raumbeleuchtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2352359A1 (fr) * 1976-05-17 1977-12-16 Int Vibration Engineer Panneau lumineux
DE19825178C2 (de) * 1998-06-05 2002-09-19 Osal Lichttechnik Gmbh & Co Kg Boden-, Wand- oder Deckenbereich mit in einer rinnenförmigen Vertiefung eingelassener Lichtleiste sowie Verwendung eines kalthärtenden, reaktiven (Meth)acrylatsystems zur Einbettung von Lichtleisten
WO2001079748A2 (fr) * 2000-04-13 2001-10-25 Maxxluxx Lichtwerbung Gmbh Ensemble de diodes electroluminescentes dans des supports publicitaires transparents plans
EP1262373A3 (fr) * 2001-06-01 2003-09-24 FER Fahrzeugelektrik GmbH Plaque pourvue d'un film lumineux activé électriquement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005091254A2 *

Also Published As

Publication number Publication date
DE112005001142A5 (de) 2007-05-24
WO2005091254A2 (fr) 2005-09-29
WO2005091254A3 (fr) 2006-03-23

Similar Documents

Publication Publication Date Title
DE102008025398B4 (de) Schutzumhüllung für ein LED-Band
EP1179219B1 (fr) Module a diodes electroluminescentes pour dispositifs de signalisation
DE10303969A1 (de) Leuchtdiodenträger
DE10322561A9 (de) Glaselement mit Lichtrahmen
DE3315785A1 (de) Kraftfahrzeugleuchte
EP1081426A2 (fr) Elément d' éclairage avec une structure porteuse de montage, un couvercle et une source lumineuse
DE202013105597U1 (de) Leuchtmittel und hiermit ausgestattete Kraftfahrzeugleuchte
EP1981147A1 (fr) Unité d'illumination avec substrat transparent et diode électro-luminescente
DE112018004747T5 (de) Leuchtvorrichtung eines Kraftfahrzeugs
DE202018106219U1 (de) Optikelementeanordnung, Leuchtmittel umfassend eine solche Optikelementeanordnung, sowie mit einem entsprechenden Leuchtmittel ausgestattete Fahrzeugleuchte
DE10016714C2 (de) Strahlungsemittierende Vorrichtung
EP2556287B1 (fr) Arrangement d'émission de lumière comprenant plusieurs sources de lumière et un élément diffuseur de lumière transparent
EP1816391A1 (fr) Dispositif d'éclairage plat
DE102010012064A1 (de) LED-Anordnung mit lichtdurchlässiger Leiterplatte
EP2404289B1 (fr) Dispositif d'éclairage comprenant un corps de base en matériau transparent
DE10315251B4 (de) Flache Leuchtvorrichtung
EP2955063A1 (fr) Lampe de véhicule automobile
EP1728232A2 (fr) Corps d'affichage pour enseignes lumineuses
EP2201414B1 (fr) Article d'éclairage
DE202021104561U1 (de) Flachbauende Beleuchtungseinrichtung
DE102009038523A1 (de) Leuchtmittel sowie Leuchte
DE102016002910B4 (de) Vollvergossenes,flexibles Leuchtdiodenband mit homogenem Lichtaustritt und 360° -Abstrahlung und Verfahren zu dessen Herstellung
DE10108073B4 (de) Leuchtvorrichtung
DE102008007251A1 (de) Leuchtkörper
EP3309854A1 (fr) Moyen d'éclairage comprenant une delo pour phare de véhicule

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20061018

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17Q First examination report despatched

Effective date: 20080219

111Z Information provided on other rights and legal means of execution

Free format text: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR

Effective date: 20081027

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111001