DE102016223208A1 - OPTOELECTRONIC ASSEMBLY, TISSUE, METHOD FOR PRODUCING AN OPTOELECTRONIC ASSEMBLY, METHOD FOR PRODUCING A TISSUE AND OPTOELECTRONIC COMPONENT - Google Patents

Abstract

In various exemplary embodiments, an optoelectronic assembly (20) is provided, comprising: at least one fiber (22) whose lateral surface is at least partially electrically insulating and which extends in a first direction (23), a first conductor track (24) the first fiber (22) is formed and extends in the first direction (23); a second conductive trace (25) formed adjacent to the first conductive trace (24) and spaced from the first conductive trace (24) on the first fiber (22) and extending in the first direction (23), at least one of the two conductive traces (24, 25) is formed on the electrically insulating surface of the fiber (22), so that the first conductor (24) of the second conductor (25) is electrically insulated; a light guide (26) which is partially formed over the first conductor (24), the second conductor (25) and the fiber (22) and the first conductor (24), the second conductor (25) and the fiber (22) partially encloses, wherein in a partial area, the first conductor track (24) and the second conductor track (25) are exposed; and an optoelectronic component (30) which is electrically connected to the first interconnect (24) and the second interconnect (25) and which is arranged in the partial area such that at least part of the light emitted by the optoelectronic component (30) is emitted, in the light guide (26) is coupled, or that at least a part of light which is coupled out of the light guide (26) is detected by means of the optoelectronic component (30).

Description

The invention relates to an optoelectronic assembly, a fabric, a method for producing an optoelectronic assembly, a method for producing a fabric and an optoelectronic component.

Nowadays increasingly luminous textiles are coming onto the market. For luminous textiles, two main concepts are currently known:

In a first concept, textiles forming fabrics are made by optical fibers, such as glass fibers or polymeric optical fibers (POF). In this case, light is introduced into the corresponding fiber bundles by means of LEDs on the end faces of the fibers. The light then propagates within the fibers due to multiple total reflection. A light extraction along the fibers takes place for example by structuring the surfaces, for example by surface roughening and / or partial removal of the fiber cladding (cladding).

In a second concept, metallic wires are woven into textile fabrics. At crossing points of these wires classic LEDs, such as premold LED packages, arranged and electrically contacted, for example, soldered.

An object of the invention is to provide an optoelectronic assembly which is simple, quick and / or inexpensive to produce, by means of which an at least partially luminous tissue can be produced and / or which can be woven into a fabric in a conventional weaving process.

An object of the invention is to provide a fabric which can be produced simply, quickly and / or inexpensively and / or in a conventional weaving method and which can shine at least partially.

An object of the invention is to provide a method for producing an optoelectronic assembly, which is simple, quick and / or inexpensive to carry out and which contributes to the fact that by means of the optoelectronic assembly simple, fast and / or cost, an at least partially luminous tissue, in particular in a conventional weaving process, can be produced.

An object of the invention is to provide a method of manufacturing a fabric that is simple, quick and / or cost effective and that allows the fabric to be at least partially illuminated.

An object of the invention is to provide an optoelectronic component which contributes to the fact that an optoelectronic assembly for producing an at least partially luminous tissue and / or an at least partially luminous tissue can be formed particularly simply, quickly, precisely and / or cost-effectively.

An object of the invention is achieved by an optoelectronic assembly, comprising: at least one fiber whose lateral surface is at least partially electrically insulating and which extends in a first direction; a first conductor formed on the first fiber and extending in the first direction; a second conductor track, which is formed next to the first conductor track and spaced from the first conductor track on the first fiber and extends in the first direction, wherein at least one of the two conductor tracks is formed on the electrically insulating surface of the fiber, so that the first conductor track is electrically isolated from the second conductor; a light guide, which is partially formed over the first conductor, the second conductor and the fiber and the first conductor, the second conductor and the fiber partially encloses, wherein in a partial region, the first conductor and the second conductor are exposed, and an optoelectronic device which is electrically connected to the first conductive line and the second conductive line and which is disposed in the partial area such that at least part of light emitted by the optoelectronic component is coupled into the optical fiber, or at least part of the light , which is coupled out of the optical fiber, is detected by means of the optoelectronic component.

If the optoelectronic component is a light-emitting component, in other words a light source, the optoelectronic assembly 20 forms an optical fiber in which optical fibers, light source and electrical contacting of the light source are integrated. If the optoelectronic component is a light-absorbing component, in other words a photosensor or a solar cell, the optoelectronic assembly 20 forms an optical fiber into which the photosensor or solar cell, optical fiber and electrical contacting of the photosensor or the solar cell are integrated. These optical fibers can be woven in conventional weaving techniques with other optical fibers and / or contact fibers. The optoelectronic assembly thus makes it possible to provide an already luminous or energy-producible optical fiber. The optical fiber can become a Fabric, for example, a textile fabric or a technical fabric, such as a garment or a tarpaulin, further processed. Subsequent arrangement and / or contacting of further light sources or solar cells is not necessary, so that in a simple manner an optical fiber, in particular a luminous or power-generating fiber, can be produced. Thus, the optoelectronic assembly is simple, fast and inexpensive to produce and allows a simple way to produce an at least partially luminous tissue, especially in a conventional weaving process.

According to a development, at least one recess is formed in the light guide, which extends in the radial direction up to the first conductor track and the second conductor track and which has the partial area. The provision of the partial region in the form of a recess in the optical waveguide contributes to the fact that the largest possible proportion of the light emitted by the optoelectronic component is coupled into the optical waveguide and the light waveguide and the subregion can be produced particularly easily, since, for example, first the optical waveguide Fiber can be produced completely enclosing and can be subsequently structured by the recess is formed.

According to a development, the optoelectronic component is designed and arranged such that the light emitted by it is emitted at least partially in the first direction. In particular, the optoelectronic component is a complete or at least substantially side-emitting component (side-looker, side emitter). This contributes to the fact that at least a large part of the generated light is coupled into the optical waveguide and distributed over the optical waveguide. Alternatively, the opto-electronic device may be a volume emitter. This can help to avoid dark spots in the area of the optoelectronic components in the luminous optical fiber.

According to a further development, a surface of the optoelectronic component facing away from the fiber in the radial direction is covered with a layer which is partially transparent for the light emitted by the optoelectronic component. The partially transparent layer transmits at least a portion of the light generated by means of the optoelectronic component to the outside. The partially transparent layer can, for example, have a light-scattering effect and / or have scattering particles. The partially transparent layer can be formed with respect to its transparency such that on the one hand it allows enough light from the optoelectronic component to pass out, so that it does not appear as a dark spot on an otherwise bright optical fiber, and at the same time blocks enough light that the optoelectronic Component does not appear as a relatively strong luminous point in an otherwise relatively weak optical fiber. Illustrated clearly, a luminosity of the optoelectronic assembly in the region of the optoelectronic component can thus be adjusted by means of the partially transparent layer.

According to a development, the recess is filled with a light-conducting filling material which at least partially embeds the optoelectronic component. The filling material may contribute to the optoelectronic component being arranged in a particularly stable manner and / or the optoelectronic component being protected from external influences. In addition, the filler material for influencing the emitted light may be designed to be light-scattering and / or have light-converting constituents. The filler material may be formed alternatively or in addition to the partially transparent layer. For example, the partially transparent layer may be formed on the filler or the filler itself may form the partially transparent layer.

According to a development, a radially outer surface of the light-conducting filling material is flush with a radially outer surface of the light guide. Illustratively speaking, an outer surface of the filling material transitions into an outer surface of the light guide without a step or step. This contributes to the optoelectronic assembly having a uniform and / or smooth outer surface, in particular without depressions or elevations. For example, this may help the optoelectronic assembly to be used as an optical fiber, like a conventional fiber to make a fabric. For example, in a further processing of the optoelectronic assembly, for example, to a tissue, there is no risk that the optoelectronic assembly in the region of the recess of the optical fiber hangs on another optoelectronic assembly, contact fiber or a part of the weaving device.

According to a development, starting from the optoelectronic component opposite to the first direction, a light-reflecting or a light-absorbing blocking layer is formed. This allows the light to be coupled into the optical fiber exclusively along the first direction. This can for example help to achieve a desired optical effect.

According to a development, at least one further subregion is formed, which is spaced apart from the subregion in the first direction and in which the first printed conductor and the second printed conductor are exposed, and at least one further optoelectronic component is electrically connected to the first printed conductor and the second printed conductor and arranged in the further partial region such that at least a part of light coming from the further optoelectronic component is emitted, is coupled into the optical waveguide, or that at least a portion of light which is coupled out of the optical waveguide is detected by means of the further optoelectronic component.

The two or more optoelectronic components may be all light-emitting components, all light-absorbing components, or both light-emitting and light-absorbing components. If all optoelectronic components are light-emitting components, an exclusively light-emitting optical fiber and / or an exclusively light-emitting tissue can be provided. If all the optoelectronic components are light-absorbing components, then an exclusively light-absorbing optical fiber and / or an exclusively light-absorbing tissue can be provided. If both light-emitting and light-absorbing components are used as optoelectronic components, then both a light-emitting and a light-absorbing optoelectronic assembly and / or a light-emitting as well as light-absorbing tissue can be provided. For example, the energy necessary for the operation of the light emitting devices may be generated by means of the light absorbing devices. In this case, one, two or more energy stores can optionally be provided in or on the optoelectronic component, in which the generated energy can be stored until it is needed.

According to a development, the optoelectronic component and the further optoelectronic component are electrically connected in series. This contributes to the fact that the optoelectronic components are simply electrically contactable and / or controllable.

An object of the invention is achieved by a fabric comprising: two or more of the optoelectronic assemblies arranged side by side; and a plurality of contact fibers, each having an electrically conductive fiber core and an insulator layer partially surrounding the respective fiber core, intersecting and interwoven with the optoelectronic assemblies, and being configured and arranged to be electrically isolated from the first conductive traces of the optoelectronic assemblies are and are electrically connected to the second interconnects of the optoelectronic assemblies.

If the optoelectronic components are light-emitting components, in other words light sources, the tissue is an optical tissue in which light guides, light sources and electrical contacts of the light sources are integrated. If the optoelectronic components are light-absorbing components, in other words photosensors or solar cells, the tissue forms an optical tissue in which photosensors or solar cells, light guides and electrical contacts of the photosensors or the solar cells are integrated. If both light-emitting and light-absorbing components are used as optoelectronic components, the tissue can itself generate the energy for operating the light-emitting components by means of the light-absorbing components. In this case, the tissue may have one or more energy stores for buffering the generated energy. These optical fabrics can be made by conventional weaving techniques. The fabric thus makes it possible in a simple manner to provide an already luminous and / or energy-producing optical tissue. The fabric may be, for example, a textile fabric or a technical fabric, for example a garment or a tarpaulin. Subsequent positioning and / or contacting of further light sources or solar cells is not necessary, so that in a simple manner an optical tissue, in particular a luminous and / or electricity-generating tissue, can be produced. Thus, the fabric is simple, quick and inexpensive to produce and can be produced in a simple manner, in particular in a conventional weaving process.

The fabric can be designed in this way, and in particular the optoelectronic components of the fabric can be designed and arranged such that the fabric can be controlled like a display and various forms, patterns, characters, symbols, numbers and / or letters can be represented by means of the optoelectronic assemblies.

According to a development, one, two or more optoelectronic components of one of the optoelectronic assemblies are connected in parallel to one, two or more optoelectronic components of another of the optoelectronic assemblies. This can contribute to the fact that the optoelectronic assemblies are easily contacted electrically within the tissue.

An object of the invention is achieved by a method for producing an optoelectronic assembly, in which: at least one fiber is provided whose lateral surface is at least partially electrically insulating and which extends in a first direction; a first Conductor track is formed on the first fiber so as to extend in the first direction; a second trace next to the first trace and spaced from the first trace on the first fiber is formed to extend in the first direction, wherein at least one of the two traces is formed on the electrically insulating surface of the fiber, such that the first Trace is electrically insulated from the second trace; forming a light guide partially over the first trace, the second trace, and the fiber so as to at least surround the first trace, the second trace, and the fiber, wherein in a portion the first trace and the second trace are exposed; and an optoelectronic component is electrically connected to the first conductor track and the second conductor track and is arranged in the subarea such that at least part of the light emitted by the optoelectronic component is coupled into the optical waveguide, or at least part of Light which is coupled out of the optical fiber is detected by means of the optoelectronic component.

The further developments and / or advantages of the optoelectronic assembly explained above can easily be transferred to the method for producing the optoelectronic assembly.

An object of the invention is achieved by a method for producing a fabric, in which: two or more of the optoelectronic assemblies are arranged side by side; and a plurality of contact fibers, each having an electrically conductive fiber core and an insulator layer partially enclosing the corresponding fiber core, are formed and interwoven with the optoelectronic assemblies such that they are electrically isolated from the first conductive traces of the optoelectronic assemblies and the second conductive traces of the optoelectronic assemblies Assemblies are electrically connected.

The above-mentioned developments and / or advantages of the fabric can be easily transferred to the method for producing the fabric.

An object of the invention is achieved by an optoelectronic component which has a concavely curved mounting surface, which faces the fiber during normal use of the lateral surface. The intended use of the optoelectronic component is the arrangement of the optoelectronic component on the fiber. The concavely curved mounting surface allows a precise arrangement of the optoelectronic component on the fiber. In particular, the optoelectronic component can be fastened in a particularly stable manner to the fiber and / or can be contacted particularly well and / or simply electrically with electrical conductor tracks in and / or on the fiber.

According to a development, the curvature of the mounting surface corresponds to the curvature of the fiber. That the curvature of the mounting surface corresponds to the curvature of the fiber means, for example, that the curvature of the mounting surface is similar to the curvature of the fiber and / or that a distance between the mounting surface and the lateral surface of the fiber is uniform.

According to a development, the mounting surface has at least one electrical contact for electrical contacting of the optoelectronic component. This contributes to the fact that the optoelectronic component is particularly easy and / or reliable electrically contactable to the fiber.

Embodiments of the invention are illustrated in the figures and are explained in more detail below.

• 1 eine seitliche Schnittdarstellung eines Ausführungsbeispiels einer optoelektronischen Baugruppe;
• 2 eine seitliche Schnittdarstellung der optoelektronischen Baugruppe gemäß 1;
• 3 eine seitliche Schnittdarstellung eines Ausführungsbeispiels einer optoelektronischen Baugruppe;
• 4 eine seitliche Schnittdarstellung eines Ausführungsbeispiels einer optoelektronischen Baugruppe;
• 5 eine Draufsicht auf die optoelektronische Baugruppe gemäß 4;
• 6 eine perspektivische Ansicht eines Ausführungsbeispiels einer Kontaktfaser;
• 7 eine seitliche Schnittdarstellung eines Ausführungsbeispiels einer optoelektronischen Baugruppe;
• 8 eine Draufsicht auf ein Ausführungsbeispiel eines Gewebes;
• 9 eine seitliche Schnittdarstellung eines Ausführungsbeispiels einer optoelektronischen Baugruppe;
• 10 eine Seitenansicht eines optoelektronischen Bauelements 20 gemäß 9.

Show it:

• 1 a side sectional view of an embodiment of an optoelectronic assembly;
• 2 a side sectional view of the optoelectronic assembly according to 1 ;
• 3 a side sectional view of an embodiment of an optoelectronic assembly;
• 4 a side sectional view of an embodiment of an optoelectronic assembly;
• 5 a plan view of the optoelectronic assembly according to 4 ;
• 6 a perspective view of an embodiment of a contact fiber;
• 7 a side sectional view of an embodiment of an optoelectronic assembly;
• 8th a plan view of an embodiment of a fabric;
• 9 a side sectional view of an embodiment of an optoelectronic assembly;
• 10 a side view of an optoelectronic device 20 according to 9 ,

In the following detailed description, reference is made to the accompanying drawings which form part of this specification and in which is shown by way of illustration specific embodiments in which the invention may be practiced. Because components of embodiments may be positioned in a number of different orientations, the directional terminology is illustrative and is in no way limiting. It should be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. It should be understood that the features of the various embodiments described herein may be combined with each other unless specifically stated otherwise. The following detailed description is therefore not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims. In the figures, identical or similar elements are provided with identical reference numerals, as appropriate.

An optoelectronic assembly may comprise one, two or more optoelectronic components. Optionally, an optoelectronic assembly can also have one, two or more electronic components. An electronic component may have, for example, an active and / or a passive component. An active electronic component may have, for example, a computing, control and / or regulating unit and / or a transistor. A passive electronic component may, for example, comprise a capacitor, a resistor, a diode or a coil.

An optoelectronic component may be an electromagnetic radiation emitting component or an electromagnetic radiation absorbing component. An electromagnetic radiation absorbing component may be, for example, a solar cell. In various embodiments, a component emitting electromagnetic radiation can be a semiconductor device emitting electromagnetic radiation and / or a diode emitting electromagnetic radiation, a diode emitting organic electromagnetic radiation, a transistor emitting electromagnetic radiation or a transistor emitting organic electromagnetic radiation be. The radiation may, for example, be light in the visible range, UV light and / or infrared light. In this context, the electromagnetic radiation emitting device may be formed, for example, as a light emitting diode (LED) as an organic light emitting diode (OLED), as a light emitting transistor or as an organic light emitting transistor. The light emitting device may be part of an integrated circuit in various embodiments. Furthermore, a plurality of light-emitting components may be provided, for example housed in a common housing.

1 shows a side sectional view of an embodiment of an optoelectronic assembly 20 , 1 shows in particular a longitudinal section through the optoelectronic assembly 20 , The optoelectronic assembly 20 has at least one optoelectronic component 30 , a fiber 22 , an electrically conductive first conductor 24 , an electrically conductive second conductor 25 and a light guide 26 on.

2 shows a side sectional view of the optoelectronic assembly 20 according to 1 , 2 shows in particular a cross section through the optoelectronic assembly 20 in the region of the optoelectronic component 30 , where in 2 to simplify the representation of the light guides 26 not shown.

The optoelectronic assembly 20 is formed overall fibrous and may for example be used to produce a fabric or be part of a fabric. For example, by means of the optoelectronic assembly 20 a fabric, for example, for clothing, or a technical fabric, such as a tarp, are produced.

The fiber 22 extends in a first direction 23 , A radial direction is perpendicular to the first direction 23 , The fiber 22 can be trained much longer than they are in 1 is shown. For example, can 1 only a partial section of the fiber 22 demonstrate. The fiber 22 is formed electrically insulating. The fiber 22 may for example comprise or be formed from polyimide or glass. On the fiber 22 For example, one, two or more layers, for example functional layers, ie layers with a specific function, can be formed.

The fiber 22 may in the radial direction have a diameter, for example, from 100 .mu.m to 10 mm, for example from 500 .mu.m to 5 mm, from 600 .mu.m to 1 mm.

On the fiber 22 are the first trace 24 and the second trace 25 educated. The first trace 24 and the second trace 25 extend in the first direction 23 and are perpendicular to the first direction 23 spaced apart. The first trace 24 and the second trace 25 are electrically isolated from each other. The first trace 24 and the second trace 25 can from one, two or more electrically conductive layers may be formed and / or may comprise, for example, one, two or more metals or metallic alloys. The metal or metals and / or the alloy or the alloys may, for example, comprise copper, silver and / or aluminum. The tracks 24 . 25 For example, as a common closed layer on the fiber 22 be trained and / or on the fiber 22 be patterned applied, for example by means of laser ablation. Also the first and second trace 24 . 25 can be trained much longer than they are in 1 are shown. For example, can 1 only a partial section of the tracks 24 . 25 demonstrate.

On the fiber 22 and the tracks 24 . 25 is the light guide 26 educated. In particular, the light guide covers 26 the fiber 22 and the tracks 24 . 25 partially and partially encloses them. For example, the fiber 22 and the tracks 24 . 25 largely in the light guide 26 be embedded. The light guide 26 can also be referred to as a photoconductive layer. The light guide 26 For example, one, two or more polymers, for example PMMA or synthetic resin, for example epoxy resin, may have or be formed therefrom. The light guide 26 For example, in a deposition process on the fiber 22 and the tracks 24 . 25 be formed.

In at least one subarea are the first trace 24 and the second trace 25 exposed. In particular, the light guide 26 a recess 28 up, down to the tracks 24 . 25 and optional right down to the fiber 22 extends and in which they are exposed. The recess 28 For example, by means of laser ablation in the optical fiber 26 be formed. Optionally, the light guide 26 , in particular a radially outer surface of the light guide 26 , be structured, for example, for generating one or more coupling-out structures for coupling out light, for example also by means of laser.

In the partial area, in particular in the recess 28 , is the optoelectronic device 30 arranged. The optoelectronic component 30 has an LED chip 32 and optionally a converter material 33 on, if necessary, the LED chip 32 partially surrounds. The LED chip 32 has an electrical first contact 36 and an electrical second contact 37 for electrically contacting the optoelectronic component 30 on. The contacts 36 . 37 are on one of the fiber 22 facing mounting surface of the optoelectronic device 30 arranged. Alternatively, at least one of the contacts 36 . 37 at one of the fiber 22 remote side of the optoelectronic device 30 be arranged. The optoelectronic component 30 is with the first trace 24 and with the second trace 25 electrically connected. In particular, the first contact 36 with the first trace 24 and the second contact 37 with the second trace 25 electrically connected. For electrically contacting the contacts 36 . 37 with the tracks 24 . 25 For example, a contact agent 50 be used. The contact agent 50 For example, it may be solder or an electrically conductive adhesive. The LED chip 32 is, for example, a partially page-emitting component or a completely page-emitting component and / or, for example, a sapphire flip-chip. Above the LED chip 32 and in particular on the converter material 33 , ie on a radially outer surface of the optoelectronic component 30 , is a semi-transparent layer 34 educated.

The fiber 22 serves as a carrier for the conductor track 24 . 25 , the light guide 26 and the optoelectronic component 30 , In addition, the fiber can 22 serve to dissipate heat, which in the operation of the optoelectronic device 30 is produced. The tracks 24 . 25 serve for electrically contacting the optoelectronic component 30 , in particular for supplying electrical current to the optoelectronic component 30 , In particular, the optoelectronic component can 30 over the tracks 24 . 25 electrical energy can be supplied to emit light. In addition, the optoelectronic component 30 over the tracks 24 . 25 be activated, for example, turned on or off. The converter material 33 Used to convert the from the LED chip 30 generated light with respect to its wavelength. The light guide 26 serves to transport the from the LED chip 30 generated and optionally converted light away from the optoelectronic device 30 , especially along the first direction 23 or against the first direction 23 , and emitting the light to one of the optoelectronic device 30 spaced location, for example at a location of the light guide 26 in which it has one or more outcoupling structures.

If the optoelectronic device 30 Energy is supplied, it can generate and emit light. That of the optoelectronic component 30 generated light, which is essentially in the first direction 23 is emitted in the following, also as the first light 42 designated. That of the optoelectronic component 30 generated light, which is substantially opposite to the first direction 23 is emitted below is also called second light 44 designated. That of the optoelectronic component 30 generated light that is substantially perpendicular to the first direction 23 , ie in the radial direction away from the fiber 22 , is emitted, is also called the third light below 46 designated.

If the converter material 33 is provided, then at least part of the LED chip 32 generated light converted with respect to its wavelength. For example, the LED chip 32 generate blue light and the blue light can by means of the converter material 33 partially converted to yellow light. The yellow and the blue light can then mix to white light, leaving the optoelectronic device 30 white light emitted.

The first and the second light 42 . 44 be in the first direction 23 or against the first direction 23 in the light guide 26 coupled. That in the light guide 26 coupled light spreads in the light guide 26 under multiple total reflection and occurs in the region of the coupling-out of the light guide 26 out. This causes the light guide 26 from the outside as a longitudinally extending luminous structure appears in particular as a luminous fiber. The third light 46 Partially passes through the semi-transparent layer 34 , The semi-transparent layer 34 causes during operation of the optoelectronic device 30 this appears neither from the outside as a dark nor as an excessively bright point in the luminous structure, especially in the luminous fiber. If as LED chip 32 an exclusively side-emitting component is used whose light is substantially along the first direction 23 or against the first direction 23 in the light guide 26 coupled, so can the converter material 33 in addition to serving that part of the LED chip 32 generated light as a third light 46 of the optoelectronic component 30 Radiated in the radial direction.

Alternatively to that in the 1 and 2 illustrated embodiment, the fiber 22 be electrically conductive. For example, the fiber 22 serve for the electrical conduction of electricity. The fiber 22 may be, for example, a metal fiber (MTF) comprising or consisting of metal, for example gold, silver, iron, tungsten, aluminum, copper, lead and / or their alloys. Illustratively speaking, metal fibers are fine wires, which are referred to as fibers because of their textile processability. The use of a metal fiber as a fiber 22 may be particularly advantageous due to the good thermal conductivity of metals for the removal of heat. If the fiber 42 is formed of metal, so may as one, two or more layers, for example, functional layers, on the fiber 42 be formed electrically insulating layers, for example of a ceramic or polymeric electrically insulating material. On the or the electrically insulating layers then the conductor tracks 24 . 25 be educated. Alternatively or additionally, the converter material 33 be waived. Alternatively or additionally, as an LED chip 32 one exclusively in the first direction 23 and / or an LED chip emitting only opposite to the first direction. Furthermore, the optoelectronic component 30 alternatively or in addition to the LED chip 32 have an OLED. Furthermore, the optoelectronic component 30 alternatively or additionally have a photosensor and / or a solar cell, in which case the optical fiber 26 for guiding external, ie from the outside, onto the light guide 26 incident, light towards the optoelectronic device 30 can serve and where then the tracks 24 . 25 for dissipating electrical current away from the optoelectronic device 30 can serve.

3 shows a side sectional view of an embodiment of an optoelectronic assembly 20 , The optoelectronic assembly 20 For example, it can be largely the same as the one described above with reference to FIGS 1 and 2 explained optoelectronic assembly 20 correspond. The recess 28 is with a filler 52 filled. For example, the optoelectronic component 30 in the filler 52 embedded. The filling material 52 is for that of the optoelectronic device 30 emitted light transparent or at least translucent. Optionally, the filler material 52 Conversion material for converting the generated light with respect to its wavelength. The semi-transparent layer 34 is on the filler 52 educated. Alternatively, the filler material 52 the partially transparent layer 34 exhibit.

For example, from an outer region of the filler 52 the partially transparent layer 34 be formed. Optionally, the filler material 52 and / or the semi-transparent layer 34 be formed so that its outer surface is flush with an outer surface of the light guide 26 is. This can contribute to the fact that when processing the optoelectronic component 20 to a tissue, the optoelectronic component 20 how a conventional fiber can be used and / or a conventional weaving method can be used.

4 shows a side sectional view of an embodiment of an optoelectronic assembly 20 , The optoelectronic assembly 20 For example, it can be largely one of those related to 1 . 2 or 3 explained optoelectronic assemblies 20 correspond.

5 shows a plan view of the optoelectronic assembly 20 according to 4 , for reasons of better representability in 5 on presenting the light guide 26 was waived.

The first trace 24 extends in the first direction 23 only over a short portion of the fiber 22 , A contact fiber 56 extends transversely, in particular perpendicular, to the fiber 22 , the tracks 24 . 25 and / or the light guide 26 , The contact fiber 56 has an electrically conductive fiber core 62 on. The fiber core 62 is exposed at least in a partial area and in the partial area by means of a contact point 58 with the first trace 24 electrically connected and by means of an electrical insulation 64 from the second track 25 electrically isolated. The contact fiber 56 serves for electrically contacting the first contact 36 of the optoelectronic component 30 by means of the first conductor track 24 ,

The optoelectronic component 30 can be an exclusively in the first direction 23 be emitting component. The optoelectronic component 30 has no converter material 33 on. Alternatively, as an optoelectronic device 30 that with reference to the 1 to 3 explained component can be used, for example, the optoelectronic component 30 in the first direction 23 , opposite to the first direction 23 and / or perpendicular to the first direction 23 Emit light and / or the converter material 33 exhibit.

On one of the optoelectronic device 30 opposite side of the contact fiber 56 can be on a wall of the recess 28 a light-absorbing or a light-reflecting blocking layer 60 be educated. The blockade layer 60 For example, it can help to prevent light coming from the optoelectronic device 30 is emitted, beyond the contact fiber 56 in the light guide 26 is coupled.

Optionally, in the recess 28 that in the 4 and 5 not shown filler 52 be arranged. Furthermore, the in 4 shown optoelectronic assembly 20 Optionally the semi-transparent layer 34 exhibit. Furthermore, optionally in the 1 to 3 explained optoelectronic assemblies 20 optionally the blocking layer 60 and / or by means of the contact fiber 56 be electrically contacted.

6 shows a perspective view of an embodiment of a contact fiber 56 , The contact fiber 56 For example, the reference to the 4 and 5 explained contact fiber 56 be. The contact fiber 56 points the fiber core 62 on. The fiber core 62 is largely of an insulator layer 68 for electrically isolating the fiber core 62 envelops. The fiber core 62 is exposed in the subregion and not by the insulator layer 68 envelops.

When making the contact fiber 56 can the fiber core 62 For example, first completely from the insulator layer 68 be enveloped, for example in a coating or in a dipping process. Subsequently, the fiber core 62 be exposed, for example by laser ablation.

7 shows a side sectional view of an embodiment of an optoelectronic assembly 20 , the optoelectronic assembly 20 has several recesses 28 on that in the first direction 23 are spaced apart and in each of which an optoelectronic device 30 is arranged. The optoelectronic components 30 are by means of the first trace 24 and the second conductor 25 and corresponding contact fibers 56 electrically contacted. The optoelectronic components 30 , the tracks 24 . 25 , the light guide 26 and the contact fibers 56 are according to the related to the 4 to 6 explained optoelectronic component 30 , Tracks 24 . 25 , Optical fiber 26 or contact fiber 56 educated. Alternatively, the optoelectronic components 30 , the tracks 24 . 25 and the light guide 26 according to the related to the 1 to 3 explained optoelectronic devices 30 , Tracks 24 . 25 or light guides 26 be educated. In other words, those related to the 1 to 3 explained optoelectronic assemblies 20 several of each other in the first direction 23 spaced recesses 28 in the light guide 26 and correspondingly a plurality of optoelectronic components arranged therein 30 exhibit.

8th shows a plan view of an embodiment of a fabric. The fabric has a plurality of optoelectronic assemblies 20 on, for example, largely according to one of the related to the 1 to 7 explained optoelectronic assemblies 20 can be trained. The optoelectronic assemblies 20 are arranged side by side and spaced from each other. The optoelectronic assemblies 20 are arranged in plan view parallel or at least approximately parallel to each other. In addition, the tissue has multiple contact fibers 56 on, for example, largely according to one of the related to the 4 to 7 explained contact fibers 56 can be trained. The contact fibers 56 are arranged side by side and spaced from each other. The contact fibers 56 are arranged in plan view parallel or at least approximately parallel to each other. The contact fibers 56 cross the optoelectronic modules 20 , In particular, the contact fibers intersect 56 the optoelectronic assemblies 20 in plan view at right angles or at least approximately at right angles. The contact fibers 56 and the optoelectronic assemblies 20 are interwoven and form the fabric. The optoelectronic assemblies 20 have the optoelectronic components 30 on.

During operation of the optoelectronic components 20 emit the optoelectronic components 30 Light, to a large extent in the light guide 26 coupled, which causes the tissue to shine. By targeted arrangement of the recesses 28 and the optoelectronic components 30 in the recesses 28 and optionally the blocking layers 60 and / or by means of various weaving techniques and / or weaving methods, it is possible to purposefully produce different luminous images, luminous patterns and / or luminous lettering.

9 shows a side sectional view of an embodiment of an optoelectronic assembly 20 , The optoelectronic assembly 20 For example, it can be largely one of those related to 1 to 7 explained optoelectronic assemblies 20 be designed accordingly and / or in the reference to 8th be arranged explained fabric. At the in 9 embodiment shown is the light guide 26 only on one side of the optoelectronic component 30 educated. Alternatively, however, the light guide may be on both sides of the optoelectronic device 30 be educated.

10 shows a side view of the optoelectronic device 20 according to 9 , The optoelectronic component 20 has a curved mounting surface 80 on. The mounting surface 80 is the area of the optoelectronic component 30 that of the fiber 22 is facing. The optoelectronic component 30 has a housing 70 on whose underside the mounting surface 80 forms. In the case 70 are two LED chips 32 arranged, for example, according to the above-explained LED chips 32 can be trained.

In 10 is a radial distance between an outer surface of the fiber 22 and the mounting surface 80 drawn to a clear illustration relatively large. In reality, the radial distance can be significantly smaller. Accordingly, unlike 10 in reality the radius and the curvature of the fiber 22 and the curved mounting surface 80 be almost the same size. In other words, a curvature of the mounting surface 80 to a curvature of the fiber 22 , in particular the outer surface of the fiber 22 , correspond.

The curved mounting surface 80 contributes to the optoelectronic component 30 fast, easy and / or very precise on the fiber 22 arranged and / or with the conductor tracks 24 . 25 can be contacted electrically.

Optional is on the fiber 22 a third track 72 educated. Optionally, the optoelectronic component 30 an electrical third contact 74 on. If necessary, the third contact 74 and the third track 22 be electrically connected to each other. Optionally, the optoelectronic component emits 30 also third light 46 , ie light against the first direction 23 For example, if on both sides of the optoelectronic device 30 the light guide 26 is arranged.

Alternatively to the in 10 illustrated embodiment, the optoelectronic device 30 only one LED chip 32 or more than two LED chips 32 exhibit. Furthermore, the optoelectronic components explained in the foregoing can also be used 30 one, two or more LED chips 32 exhibit.

The invention is not limited to the specified embodiments. For example, those with reference to the 1 to 10 explained embodiments combined with each other. For example, the various optoelectronic components 30 , in particular with or without converter material 30 and / or with or without a curved mounting surface 80 , in combination with the different light guides 26 , Fibers 22 , Filling materials 52 , Blockade stories 60 and / or semi-transparent layers 34 be used.

LIST OF REFERENCE NUMBERS

optoelectronic module 20 fiber 22 first direction 23 first trace 24 second trace 25 optical fiber 26 recess 28 optoelectronic component 30 LED chip 32 converter material 33 partially transparent layer 34 first contact 36 second contact 37 first light 42 second light 44 third light 46 contact means 50 filling material 52 Contact fiber 56 contact point 58 blocking layer 60 fiber core 62 electrical insulation 64 insulator layer 68 casing 70 third trace 72 third contact 74 mounting surface 80

Claims (16)

Optoelectronic assembly (20), with at least one fiber (22) whose lateral surface is at least partially electrically insulating and which extends in a first direction (23), a first conductive line (24) formed on the first fiber (22) and extending in the first direction (23), a second conductive trace (25) formed adjacent to the first conductive trace (24) and spaced from the first conductive trace (24) on the first fiber (22) and extending in the first direction (23), at least one of the two conductive traces (24, 25) is formed on the electrically insulating surface of the fiber (22), so that the first conductor (24) is electrically insulated from the second conductor (25), a light guide (26) which is partially formed over the first conductor (24), the second conductor (25) and the fiber (22) and the first conductor (24), the second conductor (25) and the fiber (22) partially encloses, wherein in a partial area, the first conductor track (24) and the second conductor track (25) are exposed, and an optoelectronic component (30) which is electrically connected to the first printed conductor (24) and the second printed conductor (25) and which is arranged in the partial region such that at least a part of light which emits from the optoelectronic component (30) is coupled into the light guide (26), or that at least a part of light which is coupled out of the light guide (26) is detected by means of the optoelectronic component (30). Optoelectronic module according to Claim 1 in which at least one recess (28) is formed in the light guide (26) which extends in the radial direction as far as the first printed conductor (24) and the second printed conductor (25) and which has the partial region. Optoelectronic assembly (20) according to any one of the preceding claims, wherein the optoelectronic component (30) is formed and arranged so that the light emitted by it (42, 44, 46) is at least partially emitted in the first direction (23). Optoelectronic assembly (20) according to any one of the preceding claims, wherein in the radial direction of the fiber (22) facing away from the surface of the optoelectronic device (30) with a for the light emitted by the optoelectronic component (30) partially transparent layer (34) is. Optoelectronic assembly (20) according to one of the preceding claims, in which the recess (28) is filled with a light-conducting filling material (52) which at least partially embeds the optoelectronic component (30). Optoelectronic assembly (20) according to Claim 5 in that a radially outer surface of the photoconductive filling material (52) is flush with a radially outer surface of the optical fiber (26). Optoelectronic assembly (20) according to one of the preceding claims, in which, starting from the optoelectronic component (30) opposite to the first direction (23), a light-reflecting or a light-absorbing blocking layer (60) is formed. Optoelectronic assembly (20) according to one of the preceding claims, with at least one further portion which is spaced in the first direction from the portion and in which the first conductor (24) and the second conductor (25) are exposed, and at least one further optoelectronic component (30) which is electrically connected to the first printed conductor (24) and the second printed conductor (25) and which is arranged in the further partial region such that at least a part of light (42, 44, 46) which is emitted by the further optoelectronic component (30), is coupled into the optical waveguide (26), or that at least a part of light which is coupled out of the optical waveguide (26) is detected by means of the further optoelectronic component (30) , Optoelectronic assembly (20) according to Claim 8 in which the optoelectronic component (30) and the further optoelectronic component (30) are electrically connected in series. A fabric comprising two or more optoelectronic assemblies (20) as claimed in any one of the preceding claims arranged side-by-side and a plurality of contact fibers (56) each comprising an electrically conductive fiber core (62) and an insulator layer partially surrounding the respective fiber core (62). 68), which the optoelectronic assemblies (20) arranged intersecting and interwoven with these and which are formed and arranged so that they are electrically isolated from the first conductor tracks (24) of the optoelectronic assemblies (20) and with the second interconnects (25) of the optoelectronic assemblies ( 20) are electrically connected. Tissue after Claim 10 in which one, two or more optoelectronic components (30) of one of the optoelectronic assemblies (20) are electrically connected in parallel to one, two or more optoelectronic components (30) of another of the optoelectronic assemblies (20). Method for producing an optoelectronic assembly (20), in which at least one fiber (22) is provided whose lateral surface is at least partially electrically insulating and which extends in a first direction (23), a first conductor (24) is formed on the first fiber (22) so as to extend in the first direction (23), a second conductive trace (25) adjacent the first conductive trace (24) and spaced from the first conductive trace (24) on the first fiber (22) is formed to extend in the first direction (23), at least one of the two Conductor tracks (24, 25) is formed on the electrically insulating jacket surface of the fiber (22) so that the first conductor track (24) is electrically insulated from the second conductor track (25), an optical fiber (26) is formed partially over the first conductive trace (24), the second conductive trace (25) and the fiber (22) to connect the first conductive trace (24), the second conductive trace (25) and the fiber (22 ) partially encloses, wherein in a partial area, the first conductor track (24) and the second conductor track (25) are exposed, and an optoelectronic component (30) is electrically connected to the first printed conductor (24) and the second printed conductor (25) and is arranged in the partial region in such a way that at least part of the light (42, 44, 46) coming from the optoelectronic component (30) is emitted, is coupled into the optical waveguide (26), or that at least part of light which is coupled out of the optical waveguide (26) is detected by means of the optoelectronic component (30). Method for producing a fabric, in which two or more optoelectronic assemblies (20) according to one of the Claims 1 to 8th arranged side by side, and a plurality of contact fibers (56) each having an electrically conductive fiber core (62) and an insulator layer (68) partially enclosing the corresponding fiber core (62) are formed and thus interwoven with the optoelectronic assemblies (20), in that they are electrically insulated from the first interconnects (24) of the optoelectronic assemblies (20) and electrically connected to the second interconnects (25) of the optoelectronic assemblies (20). Optoelectronic component (30) for use in one of the optoelectronic assemblies (20) according to one of Claims 1 to 9 and / or the tissue according to one of Claims 10 or 11 , which has a concavely curved mounting surface (80), which faces when intended use of the lateral surface of the fiber (22). Optoelectronic component (30) according to Claim 14 in that the curvature of the mounting surface (80) corresponds to the curvature of the fiber (22). Optoelectronic component (30) according to one of Claims 14 or 15 comprising at least one electrical contact (36, 37, 74) on the mounting surface (80) for electrically contacting the optoelectronic component (30).

Images