DE20319650U1 - Flexible array of LEDs for creating illuminating surfaces by cutting circuit board into shape as needed - Google Patents

Flexible array of LEDs for creating illuminating surfaces by cutting circuit board into shape as needed Download PDF

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Publication number
DE20319650U1
DE20319650U1 DE20319650U DE20319650U DE20319650U1 DE 20319650 U1 DE20319650 U1 DE 20319650U1 DE 20319650 U DE20319650 U DE 20319650U DE 20319650 U DE20319650 U DE 20319650U DE 20319650 U1 DE20319650 U1 DE 20319650U1
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Prior art keywords
leds
circuit board
shape
flexible
creating
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Expired - Lifetime
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DE20319650U
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German (de)
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0286—Programmable, customizable or modifiable circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/18—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/10—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers
    • H01L25/13—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices having separate containers the devices being of a type provided for in group H01L33/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10106—Light emitting diode [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
    • H05K2203/17—Post-manufacturing processes
    • H05K2203/175—Configurations of connections suitable for easy deletion, e.g. modifiable circuits or temporary conductors for electroplating; Processes for deleting connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0011—Working of insulating substrates or insulating layers
    • H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
    • H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Led Device Packages (AREA)

Abstract

Flexible circuit board (4) contains 5mm close-meshed matrix of regularly spaced LEDs (3). Circuit board is cut with scissors or knife to shape LED matrix to affix to e.g. cylindrical or uneven-shaped surface. Circuit paths are arranged so cutting out any number of LEDs along grid does not disturb function of remaining LEDs.

Description

Diese Erfindung ist eine flexible Leuchteinheit, bestehend aus im Raster angeordneten Leuchtdioden (LEDs). Die äquidistante Anordnung der einzelnen LEDs in möglichst geringem Rasterabstand ergibt schon bei geringem Betrachtungsabstand eine gleichmäßig hell leuchtende Fläche.This invention is flexible Luminaire unit, consisting of light-emitting diodes arranged in a grid (LEDs). The equidistant Arrangement of the individual LEDs in the smallest possible grid spacing results even with a short viewing distance a uniformly bright luminous surface.

Auf LEDs basierende Leuchteinheiten werden heute beispielsweise für Rück-, Brems- oder Blinkleuchten in Fahrzeugen, Werbedisplays oder für Lichteffekte eingesetzt. Durch die Verwendung mehrerer LEDs kann die geforderte Leuchtstärke erzielt werden. Dabei wird eine gleichmäßige Leuchtstärke bei sehr unterschiedlichen Formen über das gesamte Leuchtsegment (z.B. einem KFZ-Rücklicht) gewünscht.Luminaire units based on LEDs are used today for back, Brake or indicator lights in vehicles, advertising displays or for lighting effects used. By using several LEDs, the required luminosity be achieved. This will give a uniform luminosity very different forms the entire light segment (e.g. a car rear light) is desired.

Stand der Technik ist es, durch eine individuelle Anordnung mehrerer LEDs nebeneinander sich der Form des Leuchtsegments grob anzunähern. Reflektoren um die einzelnen LEDs herum sorgen dabei für die gewünschte Lichtverteilung über die Segmentfläche. Bei diesen Reflektoren handelt es sich typischerweise um ein kompliziert geformtes verspiegeltes Kunststoffteil. Sowohl die Konstruktion dieser Reflektoreinheiten als auch die Herstellung insbesondere kleiner Mengen für Muster oder Versuchsserien ist sehr aufwändig und teuer.State of the art is through a Individual arrangement of several LEDs next to each other in the form roughly approximate the light segment. Reflectors around the individual LEDs ensure the desired light distribution over the Segment surface. These reflectors are typically complicated molded mirrored plastic part. Both the construction of these reflector units as well as the manufacture in particular small amounts for Sample or test series is very complex and expensive.

Es ist daher die Aufgabe der vorliegenden Erfindung, eine flexible Lösung zu schaffen, die mit geringem Konstruktion- und Herstellungsaufwand die gleichmäßige Ausleuchtung unterschiedlichster Segmente erlaubt und dabei die geforderte Leuchtstärke nicht unter- oder überschreitet.It is therefore the object of the present invention a flexible solution to create the uniform illumination with little design and manufacturing effort different segments allowed and the required luminosity not falls below or exceeds.

Diese Aufgabe wird erfüllungsgemäß durch das Anbringen vieler kleiner LEDs in gleichförmigem Raster auf einer Leiterplatte gelöst, wobei die Leiterbahnführung so ausgelegt ist, dass beim Abtrennen von beliebigen Teilen die Funktion der übrigen LEDs erhalten bleibt.This task is accomplished by the Attaching many small LEDs in a uniform grid on a circuit board solved, being the conductor track is designed so that when cutting off any parts the Function of the rest LEDs are retained.

Die Erfindung setzt sich prinzipiell aus einer flexiblen Leiterplatte und vielen im engmaschigen Raster (z.B. 5mm) angeordneten LEDs, ggf. mit Vorwiderständen zur gleichmäßigen Stromverteilung, zusammen.The invention is based in principle from a flexible printed circuit board and many in a close-knit grid (e.g. 5mm) arranged LEDs, if necessary with series resistors for uniform current distribution, together.

Die Grundidee der vorliegenden Erfindung besteht darin, eine Leuchttechnik einzusetzen,The basic idea of the present invention is in using lighting technology,

  • – welche es dem Designer oder Hersteller von Leuchteinheiten erlaubt, schnell und flexibel Leuchtkörper in beliebiger Form anzufertigen und- Which allows the designer or manufacturer of lighting units to quickly and flexible filament to be made in any form and
  • – welche eine gleichmäßige hohe Leuchtstärke je nach Bedarf erzeugt und- Which an even high luminosity generated as needed and
  • – welche es ermöglicht dies durch einfaches Zuschneiden mit einer Schere zu erreichen und- Which allows achieve this by simply cutting with scissors and
  • – welche in verschiedenen Leuchtfarben aufgebaut werden kann: möglich sind z.B. rot, gelb, orange, grün, blau oder weiß.- Which can be built up in different fluorescent colors: are possible e.g. red, yellow, orange, green, blue or white.

Bei dieser Erfindung wird einfach die gewünschte Leuchtform aus der Gesamtfläche der Leiterplatte mit den LEDs herausgeschnitten. Dazu genügt eine einfache Schere, da sich die flexible Leiterplatte ohne Probleme damit zuschneiden lässt. Für Leuchtflächen, die größer als eine Leiterplatte sind, können auch mehrere davon nebeneinander angeordnet werden.This invention makes it easy the desired Luminous form from the total area cut out the circuit board with the LEDs. One is sufficient simple scissors because the flexible printed circuit board is no problem can be cut with it. For illuminated areas that larger than are a circuit board, can also several of them can be arranged side by side.

Die maximale Leuchtstärke wird durch die LEDs bestimmt. Sie ist mehr als ausreichend um beispielsweise als Bremsleuchten in KFZ eingesetzt zu werden. Aufgrund der hohen Leuchtstärke multipliziert mit der Anzahl von LEDs, wird in vielen Fällen eine Reduzierung der Leuchtstärke erforderlich sein. Dies wird in dieser Erfindung mit einer elektronischen Vorschaltplatine gelöst, die eine Regelung der Helligkeit erlaubt. Sinnvollerweise wird hierzu die Leucht/Pausendauer der LEDs variiert. Durch die Wahl einer genügend hohen Schaltfrequenz im Bereich von ca. 100Hz bis zu einigen kHz nimmt das menschliche Auge ein kontinuierliches und flimmerfreies Leuchten wahr.The maximum brightness is determined by the LEDs. It is more than sufficient for example to be used as brake lights in vehicles. Because of the high luminosity multiplied by the number of LEDs, in many cases it becomes one Reduction of luminosity to be required. This is done in this invention with an electronic ballast solved, which allows regulation of the brightness. This makes sense the lighting / pause duration of the LEDs varies. By choosing a sufficiently high one Switching frequency in the range from about 100Hz to a few kHz the human eye a continuous and flicker-free glow true.

Es zeigen:Show it:

1 zeigt die Grundform der Leiterplatte, hier mit insgesamt 200 LEDs im Abstand von 5,08mm bestückt. An der linken Seite ist eine Kabelanschlussfahne vorgesehen. Ebenso wäre auch ein Anlöten der Kabel an der Rückseite der Leiterplatte möglich. 1 shows the basic shape of the circuit board, here equipped with a total of 200 LEDs at a distance of 5.08mm. A cable connection lug is provided on the left side. It would also be possible to solder the cables to the back of the circuit board.

2 zeigt ein Beispiel, wie die Leiterlatte mit den LEDs zu einer Wunschform zugeschnitten wurde. 2 shows an example of how the batten was cut to a desired shape with the LEDs.

3 zeigt eine Funktionseinheit, bestehend aus der Leiterplatte mit den LEDs und einer elektronischen Vorschaltplatine. 3 shows a functional unit consisting of the circuit board with the LEDs and an electronic ballast.

Figur 1: Ansicht im Querschnitt von der Seite

1
Kabelanschlussfahne
2
Vorwiderstand
3
LED
4
flexible Leiterplatte
Figure 1: Cross-sectional view from the side
1
Cable terminal lug
2
dropping resistor
3
LED
4
flexible circuit board

Figur 2: Ansicht im Querschnitt von der Seite

1
Kabelanschlussfahne
2
Vorwiederstand
3
LED
4
flexible Leiterplatte
5
Zuschnitt (Beispiel)
Figure 2: Cross-sectional view from the side
1
Cable terminal lug
2
Vorwiederstand
3
LED
4
flexible circuit board
5
Cutting (example)

Figur 3: Ansicht im Querschnitt von der Seite

1
Kabelanschlussfahne
2
Vorwiderstand
3
LED
4
flexible Leiterplatte
5
Zuschnitt (Beispiel)
6
Elektronische Vorschaltplatine
Figure 3: Cross-sectional view from the side
1
Cable terminal lug
2
dropping resistor
3
LED
4
flexible circuit board
5
Cutting (example)
6
Electronic ballast

Claims (1)

Array von Leuchtdioden zur flexiblen Gestaltung von leuchtenden Flächen: (a) montiert auf einer flexiblen Leiterplatte in einem gleichmäßigem Abstandsraster dadurch gekennzeichnet, dass (b) sich aus der Grundform der gesamten Leiterplatte mit den LEDs eine beliebige Anzahl von LEDs einfach mittels einer Schere oder einem Messer herausschneiden lässt, um innerhalb des Rasters die gewünschte Form des Leuchtsegments zu erhalten (c) die elektrische Leiterbahnführung der Leiteplatte so ausgeführt ist, dass beim Herausschneiden beliebiger Teile aus der Leiterplatte entlang des Rasters die Funktion des verbleibenden Teils mit LEDs nicht gestört wird (d) die leuchtende Fläche auch entlang zylindrisch gerundeter Körper flexibel anbringen lässtArray of light-emitting diodes for flexible design of luminous surfaces: (a) mounted on a flexible circuit board in a uniform spacing, characterized in that (b) any number of LEDs can be obtained from the basic shape of the entire circuit board with the LEDs simply using scissors or a Knife can be cut out in order to maintain the desired shape of the light segment within the grid (c) the electrical conductor track of the printed circuit board is designed so that when any parts are cut out of the printed circuit board along the grid, the function of the remaining part is not disturbed by LEDs (i.e. ) the luminous surface can also be flexibly attached along cylindrical rounded bodies
DE20319650U 2003-12-19 2003-12-19 Flexible array of LEDs for creating illuminating surfaces by cutting circuit board into shape as needed Expired - Lifetime DE20319650U1 (en)

Priority Applications (1)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011857A1 (en) * 2005-03-15 2006-09-28 Alcan Technology & Management Ag Flat lighting device
FR2897574A1 (en) * 2006-02-17 2007-08-24 Valeo Vision Sa LED circuit for lighting/signaling device, has flat power cable of LEDs including bared part connected to general power cable to ensure electrical connection, and another set of bared parts with two ends of two wires soldered on LED module
WO2008141674A1 (en) 2007-05-22 2008-11-27 Osram Gesellschaft mit beschränkter Haftung Illumination device and projection device with such an illumination device
EP2400822A2 (en) 2010-06-28 2011-12-28 Spyrelight Gmbh Electronic component
CN102313219A (en) * 2010-11-16 2012-01-11 鹤山市明华电器五金厂 High-integration LED vehicle headlamp assembly
CN102506314A (en) * 2011-10-17 2012-06-20 黄海晏 Easily folded LED (light-emitting diode) screen lamp
US8525402B2 (en) 2006-09-11 2013-09-03 3M Innovative Properties Company Illumination devices and methods for making the same
US8581393B2 (en) 2006-09-21 2013-11-12 3M Innovative Properties Company Thermally conductive LED assembly
WO2013066920A3 (en) * 2011-11-03 2014-03-06 Cooledge Lighting, Inc. Broad-area lighting systems and methods of its fabrication
US10707635B2 (en) 2017-05-15 2020-07-07 Current Lighting Solutions, Llc Method for providing a wire connection to a printed circuit board
DE102022203888A1 (en) 2022-04-20 2023-10-26 Lightntec Gmbh Trimtable LED film

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005011857A1 (en) * 2005-03-15 2006-09-28 Alcan Technology & Management Ag Flat lighting device
DE102005011857B4 (en) * 2005-03-15 2007-03-22 Alcan Technology & Management Ag Flat lighting device
FR2897574A1 (en) * 2006-02-17 2007-08-24 Valeo Vision Sa LED circuit for lighting/signaling device, has flat power cable of LEDs including bared part connected to general power cable to ensure electrical connection, and another set of bared parts with two ends of two wires soldered on LED module
US8860296B2 (en) 2006-09-11 2014-10-14 3M Innovative Properties Company Illumination devices and methods for making the same
US9303829B2 (en) 2006-09-11 2016-04-05 3M Innovative Properties Company Illumination devices and methods for making the same
US8525402B2 (en) 2006-09-11 2013-09-03 3M Innovative Properties Company Illumination devices and methods for making the same
US9303827B2 (en) 2006-09-11 2016-04-05 3M Innovative Properties Company Illumination devices and methods for making the same
US8581393B2 (en) 2006-09-21 2013-11-12 3M Innovative Properties Company Thermally conductive LED assembly
US8206006B2 (en) 2007-05-22 2012-06-26 Osram Ag Illumination device and projection device with such an illumination device
CN101675707B (en) * 2007-05-22 2011-12-28 奥斯兰姆有限公司 Illumination device and projection device with such an illumination device
WO2008141674A1 (en) 2007-05-22 2008-11-27 Osram Gesellschaft mit beschränkter Haftung Illumination device and projection device with such an illumination device
DE102010025315A1 (en) 2010-06-28 2011-12-29 Lukas Biberacher Electronic component
EP2400822A2 (en) 2010-06-28 2011-12-28 Spyrelight Gmbh Electronic component
CN102313219A (en) * 2010-11-16 2012-01-11 鹤山市明华电器五金厂 High-integration LED vehicle headlamp assembly
CN102313219B (en) * 2010-11-16 2016-03-30 鹤山市明华电器五金厂 High integrated LED vehicle front lighting lamp assembly
CN102506314A (en) * 2011-10-17 2012-06-20 黄海晏 Easily folded LED (light-emitting diode) screen lamp
WO2013066920A3 (en) * 2011-11-03 2014-03-06 Cooledge Lighting, Inc. Broad-area lighting systems and methods of its fabrication
US10707635B2 (en) 2017-05-15 2020-07-07 Current Lighting Solutions, Llc Method for providing a wire connection to a printed circuit board
DE102022203888A1 (en) 2022-04-20 2023-10-26 Lightntec Gmbh Trimtable LED film

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