DE202006010269U1 - Surface lighting consists of carrier with organic light-emitting diode lighting or electro-luminescent lamps - Google Patents

Abstract

The lighting is achieved with the aid of transparent organic light-emitting diode (OLED) with rigid or flexible carrier as the active surface lighting. The active surface lighting may be achieved via electro-luminescent lamps.

Description

The Invention relates to the illumination of surfaces of installation devices, in particular switches, Buttons, light signals, orientation lights and sockets of building system technology according to the preamble of claim 1.

In the building system technology there are already switches, pushbuttons and sockets from the past, e.g. Heating emergency switches, which indicate the switching status or one visual confirmation for one Signal switching operation. Also, these light signal displays always with the lowest power consumption, since it is often around Continuous light devices is.

• – sich durch minimalen Stromverbrauch auszeichnet
• – direkt an der 240 V-Netzleitung betrieben werden kann
• – eine sehr hohe Lebensdauer aufweist.

Always a punctiform light source is used. In the simplest case, the glow lamp is used, the

• - characterized by minimal power consumption
• - Can be operated directly on the 240 V mains cable
• - Has a very long life.

such Glimmlampen be with free connection ends or socketed - E-series or socket - in contacting plastic housings installed and as Glimmaggregat / Glimmlampenelement / light trailers / light signal use / jack in matching device parts plugged, mechanically latching and electrically connecting, for the voltages 6V, 8V, 12V / 40mA / 2W, 24V / 20mA and 25mA / 2W, 230V / 0.4mA, 0.5 mA, 0.65 mA, 0.8 mA, 1 mA, 1.3 mA, 2 mA and 3.5 mA, and 400 V / 0.5 mA.

• – nur in der Farbe Rot angeboten wird
• – nicht steuerbar ist, wegen der physikalischen Glimmentladung
• – nur in bestimmten Spannungs- und Stromwerten geliefert wird
• – die Lichtausbeute sehr gering ist
• – ein eher flackerndes, unruhigendes punktförmiges Licht abgibt.

A disadvantage is that the glow lamp

• - only in the color red is offered
• - is not controllable, because of the physical glow discharge
• - only supplied in certain voltage and current values
• - The light output is very low
• - emits a rather flickering, restless point-like light.

Some Disadvantages are created by introducing a neutral or colored, also refractive transparent disc - also called hood - compensated, always accompanied by transmission losses and color fastness is not given.

Furthermore was - u.a. also in control cabinet construction - the electric light bulb, socketed in different socket shapes and dimensions installed or housed as a light bulb element. The yellowish-yellow Light emitting light bulb is already colored with glass as well as used in conjunction with transparent colored covers. The lightbulb is also for all common ones Voltage values available and usable; Light bulb voltages are 3 V, 5 V, 8 V and 230 V / 13 mA / 3 W. The incandescent lamp - also as an Ohmic equivalent resistor used - can in a big one Area are dimmed. Smaller voltages below rated voltage affect the much lower - compared to glow lamps - lifetime conducive out.

• – Kontroll-Zustandsanzeigen und Rückmeldungen
• – Orientierungsbeleuchtung und Lichtsignale
• – Lese- und Arbeits- und Hinweis-/Notausgangsbeleuchtung.

The incandescent lamp is also a spotlight and is - like the glow lamp - also used in devices of electrical building and system technology for different applications

• - Control status indicators and feedback
• - Orientation lighting and light signals
• - Reading and work and information / emergency exit lighting.

The Types of glow and light bulb are relatively big and therefore, in the device miniaturization only conditionally usable. The best known sockets are the E-screw, the socket and the socket with bayonet lock. Furthermore, glowing and light bulb a considerable length of what itself as a construction depth in the device technology negative. The opposite the glow lamp much higher Current consumption of the light bulb also works because of the heat negative and is only conditionally suitable for battery powered devices.

The German utility model DE 18 09 197 U introduces a switch with lighting, the stunned light bulb, incandescent or glow lamp, in a provided with terminal contacts - is housed - lamp housing.

According to the German utility model DE 19 09 357 U the wired illuminant is housed in the pivotable, made of transparent material rocker switch of the electrical switch.

The utility model DE 77 21 104 represents a glow lamp unit for an electrotechnical installation device consisting of glow lamp and resistor, which is self-clamping and -kontaktierend introduced into the device.

The German patent DE 36 43 702 as well as the utility model DE 87 06 234 represents an electrical outlet with lighting, the lighting consists of a bulb with bulb holder and the contacts of the bulb holder are connected to the socket outlets.

Another, application-related Light source is the cold cathode in 2 mm and 4 mm tube form. This lamp can be purchased from lengths of approximately 50 mm and is suitable as a cylindrical, elongated light source for more areal illumination, as they are required for example in display applications as a backlight. The disadvantage here is the use of a ballast to generate the necessary ignition / burning voltages for the cold cathode.

With the advent of the white / blue LED (Light-emitting diode) technology found a repression of Glimm- and incandescent small lamps in favor the new technology in signaling. The sizes are smaller, the electricity consumption likewise and the service life increases many times over. It is also new that the Illuminant in the R (red) G (green) B (blue) colors and from it derived mixed colors - including the Color white - available. But also the single LED is a punctiform Lamps; However, it is due to the size of a Multiplication of the bulb.

So single-LEDs are used for signaling and orientation, Assembled as a replacement with standardized sockets of the e- or bayonet series for tension 24 ... 28 VAC / VDC / 15 ... 20 mA in the colors red, yellow, green, blue and white or in 230 V version with a current of 5 mA. Another replacement bulb is the LED cluster lamp for light signal in the colors red, yellow and green with E14 socket at 230 V / 1.2 W connection. Another replacement forms the LED light for Switches and push-buttons in the colors red and green and the supply 12 ... 48 V / 20 mA and 230 V / 1.1 mA or one LED lighting insert 12 ... 24 V / 20 mA in the colors red and neutral. On offer Also a lighting insert with light emitting diode for 230 V connection provided with a light guide for uniform illumination of a label carrier.

According to the German patent DE 195 25 843 is a socket with light emitting diodes, whose light shines through the contact sockets, a motion detector and a twilight sensor equipped. An approach to the socket in the darkness switches on the LEDs.

The German utility model DE 203 01 120 discloses a backlight or lighting switch or push button with a LED (Light-emitting diode) as a light source and a circuit that is directly connected to voltages of 60 V ... 250 V and directly - instead of a glow lamp - in the switch / Button can be inserted.

New Infolicht, Infolichtsignal, LED light signal and were developed Orientation sign, all based on an LED backlighting and supplemented with pictograms or Filing foils stocked be delivered or work only as an orientation light.

The Operation of multiple or multifunction buttons of building system technology without brightness-controlled key pad areas is in the dark hard to handle.

all presented applications to the disadvantage that from a punctate at best from a cylindrical Light source a surface lighting should be derived while avoiding uneven illumination. In addition to the electrical power of the point-shaped radiator / light source - and thus the power converted to light - is for homogeneous illumination a plane of the opening angle to consider the light source.

Exactly For this purpose, optical films, films and sheets are made Plastic developed and offered. These materials are on the one hand optically highly transparent and on the other hand they have an optical structure, the incident visible light is distributed and does not appear punctiform lets, to Purposes of a possible homogeneous illumination of surfaces.

There these materials like optical lenses work, they tend to perform a spectral analysis of the light and in rainbow colors display. Transmission losses are low, too of aging. To come to a desired result, are for the Use of such materials optical knowledge indispensable.

The Construction depth is considerable, either because the components are so high or because a certain one Distance to the lighting level must be maintained. Also is the energy consumption Huge, because the devices have no Switch and work in continuous operation. Large parts of the energy consumed get into heat implemented; For suitable heat dissipation Care is to be taken early Aging more sensitive to heat Materials are pointed out.

The Definition of the light intensity depends on a certain direction of emission, the - measured in several directions - the light intensity distribution results. If this distribution is spatially represented in terms of radius vectors is, results under consideration all emission directions of the luminous intensity distribution body; one planar section of this results in the light intensity distribution curve (LVK).

The luminous intensity distribution of a luminaire be agrees the light control in detail; It can be used to determine quantities such as the distribution of the direct illuminance on the illuminated surface, the lighting efficiency, the uniformity of the illuminance, the shading and the degree of glare-freeness. Typically, luminous intensity distribution curves (LVK) of a luminaire with a reflector in the C-plane system - flat sections around the axis of rotation - are given.

According to the state technology can be the shape of the luminous intensity distribution curve (LVK) by the geometry of the reflector and / or an adjustment the lighting arrangement relative to the reflector and / or - like in the stage / Fresnel lens headlight - an adjustment of the lamp / reflector assembly relative to the lens with the aim of a controllable opening of the beam influence (Lit .: H.-J. Hentschel, light and illumination, Hüthig Verlag, Heidelberg).

Of the Use of step / Fresnel lenses is in the intended applications unusual; a ray of light in the form of a spotlight for Effect lighting is not needed here. Lamps are used if necessary with reflector for the most uniform possible illumination larger areas at a punctiform and / or provided in the grid Attachment of bulbs at a relatively low distance, object and product related.

In the German utility model DE 20 2005 017 414 a replaceable frame is presented with backlighting, being arranged on a transparent plate as a carrier with a back-mounted mounted EL-Leuchffolie front or between transparent plate and luminescent foil durchluchtbare foil with information also interchangeable, which is illuminated after commissioning of the bulb.

The German utility model DE 20 2004 009 529 discloses a permanently activated via the mains EL-based illuminated panel for switches, displays or similar devices, in the form of a running as a strip capacitor light-emitting frame in transparent or colored version.

The presented application examples are not suitable or only conditionally as a solution for a surface lighting of installation devices in particular switches, buttons, light signals, orientation lights and sockets of building system technology.

Of the Invention is therefore the object of a homogeneous spatial area lighting for installation devices in particular Switches, buttons, light signals, orientation lights and sockets to create under neglect above disadvantages.

These The object is achieved by the characterizing features of claim 1 solved. Advantageous embodiments show the figures and take the dependent claims.

aim is the construction of a homogeneous spatial area lighting for installation devices of building system technology in particular switches, buttons, light signals, orientation lights and sockets, if possible universal lighting technology and intended use with a minimum amount of mechanics and parts get along and equipped with the above-described advantages of such a lamp are.

According to the present Invention is therefore proposed, the area lighting of installation devices using the example of the light-signal switch and the socket with the help of the EL (electroluminescence) or the OLED (Organic Light-emitting diode) technology.

Physically Seen is the light generation based on EL technology via a AC powered 2-plate capacitor whose dielectric provided with a phosphor layer. The composition of the Phosphors determined after excitation by the alternating field, the color reproduction.

at OLED technology is characterized by at least one organic layer Polymer materials - polymer OLED or PLED from e.g. Polyphenylenevinylene or polyfluorenes - between arranged two electrically conductive electrodes. Will an electric Voltage applied to these electrodes emits the organic Layer bright light. OLED layers are very thin, very light, energy and cost-saving. Compared to LCD (Liquid Crystal Display) systems give the OLED-based Constructions a brighter image, allow a larger viewing angle and create lower production costs, e.g. used as colored graphic displays in devices the consumer electronics. Because of the active OLED pixels eliminates the energy-consuming backlight. The OLED arrangement can also be constructed with flexible materials. The OLED drive circuit can also be transparent - for the human Eye transparent - arranged be.

In the following, two layer structures for the production of spatial surface lighting are presented. A back wall carries the rear electrode on which the dielectric is applied. The dielectric is followed by a color-coordinated phosphor layer, which is terminated by an electrically conductive transparent layer - 2nd electrode. This transparent layer can by an ITO (indium tin oxide) film or a transparent conductive polyester film or glass.

Other EL-layer structures with other layer sequences are possible, however always form two AC-powered electrodes with a phosphorised Dielectric the area capacitor. The Electrical power can be supplied via the 230 V mains as well as over one 12 V or 24 V DC connection; the respective supply voltage is converted into a capacitor AC voltage of approx. 100 V / 300 Hz ... 400 Hz converted. A decrease in frequency affects the Capacitor life-promoting out.

• – homogene Ausleuchtung aller durchleuchtbarer Materialien
• – hohe Langlebigkeit, große Halbwertszeit
• – Erfüllung ästhetischen Anspruchs, edle Oberflächen
• – brilliante Farbwiedergabe auch mittels Filter/Farbschieber
• – Motivdarstellung durch EL/OLED-Druck oder EL/OLED-Lampe mit Wechselmotiv/Dekorfolie
• – geringer Energieverbrauch, keine Wärmeentwicklung
• – leichte elektrische Schalt- und Steuerbarkeit
• – Pulsbetrieb möglich, kein Nachleuchten
• – mehrere Schaltmöglichkeiten innerhalb des gleichen Motivs
• – segmentierte Ansteuerung von Leuchtflächen, auch farblich
• – Kunststoffe und/oder Glas als Motivträger
• – keine Transmissionsverluste durch Streufolien/-platten
• – vielfältige Einsatzmöglichkeiten durch verschiedene Beschichtungsverfahren
• – Reproduzierbarkeit durch Beschichtungsprozeß gegeben
• – nachttaugliche Bedienoberflächen auch bei Mehrfach-Tastern
• – gestaltbare designfähige Beleuchtung geringster Bautiefe
• – montage- und wartungsfreundlich, auch bei Motivwechsel
• – nebel- und rauchdurchdringende Lichtemission (Notlicht-Eigenschaften)
• – transparente Schichten (OLED).

The possibility of producing electrically conductive glass surfaces whose transparency is only slightly limited opens up new possibilities for EL / OLED technology in glass. EL / OLED area lighting has been boosted by the production of conductive, highly transparent films, foils and sheets - such as plastics or glass; it is characterized by

• - homogeneous illumination of all transilluminable materials
• - high longevity, large half-life
• - fulfillment of aesthetic demands, noble surfaces
• - Brilliant color reproduction also by means of filter / color slider
• - Motif display by EL / OLED printing or EL / OLED lamp with changing motif / decorative foil
• - low energy consumption, no heat generation
• - easy electrical switching and controllability
• - Pulse mode possible, no afterglow
• - multiple switching options within the same subject
• - segmented control of illuminated areas, also in color
• - Plastics and / or glass as a motif carrier
• - No transmission losses due to scattering foils / plates
• - Various application possibilities by different coating methods
• - Reproducibility given by coating process
• - night-friendly user interfaces even with multiple buttons
• - Designable design lighting of minimum depth
• - Easy to assemble and maintain, even when changing motifs
• - fog and smoke penetrating light emission (emergency light properties)
• - transparent layers (OLED).

preferred embodiments of the subject invention are shown in the figures and become closer in the following explained.

It shows the light signal switch with button or rocker and area lighting

1 Construction / assembly in perspective / exploded view with pictogram or light motif

2 Assembly / assembly in perspective / exploded view with pre-fabricated glass motif carrier.

Same and equivalent components of the embodiments are in the Figures always provided with the same reference numerals.

1 shows in a concept study the structure of a surface lighting of a light signal switch. The commercial switch base / insert 1 consists of a contact or rocker switch provided with contacts 13 with housing 11 whose opening is exposed to the front 12 a recording 14 for the button or the rocker 2 forms. Furthermore, in the switch base surface is a multi-pole contact socket 15 let in, which establishes the electrical connection to the bulb. The switch base / insert installed in a base or surface mount box becomes a visible surface through a design frame 16 - if necessary, with wallpaper compensation - completed.

Button or rocker 2 consists essentially of a zusammenfü- and / or snap-in assembly such as a lower part 21 , a bulb EL / OLED bulb 22 , a luminescent film 23 and a cover 24 , shown in perspective here as an assembly drawing. The lower part has as insert 211 via a breakthrough permitting the electrical connection 212 , Furthermore offers a mechanical attachment 213 the possibility of releasably securing the assembled control unit with illuminated display - push-button or rocker - in the frame on the switch base / insert.

The light source is always multi-layered, has a carrier A. 221 that is the luminescent layer 222 towards an electrically conductive surface. Carrier A with a luminescent layer is replaced by a likewise electrically conductive carrier B to the luminescent layer 223 completed, this carrier B must additionally have transparent properties, since the light is formed by the luminescent layer between the two carriers. An electrical multi-pole contact 224 with flexible connection opens into a connector 225 , suitable for the above contact socket. As a material for the carrier, for example, highly transparent ITO (indium tin oxide) material is used, in which a support of electrical non-conductive plastic or glass is coated with the current-carrying indium tin oxide as an electrode.

The light source can - depending on the application - through a transparent, even changeable luminescent film with pictogram 231 or hand / printer foil 232 be covered. The luminescent film can also be kept neutral and / or serve the coloring. The lower part, bulbs and, if necessary, luminescent foil are protected mechanically by a cover 24 , which also held transparent, can also serve the color scheme.

Brightness and color of the device can - in addition to the bulb itself - by the surface design of the light signal switch including the frame - designed as plastic, metal or glass frame - or by the EL / OLED bulbs in conjunction with carrier B, phosphor and button or rocker cover are designed. The surface of the cover 24 can also be structured perform the light guide or steering, such as a light concentration by Fresnel lenses, the most homogeneous light distribution by corrugation or satin or a light guide on cover 24 in the border of the lower part 21 as well as in the frame 16 - as orientation light or as light with signal effect. The color design of the light signal switch can also be predetermined by normalization, such as by use as an emergency light signal switch.

image 2 shows a further embodiment of the light signal switch, wherein the / the commercial switch base / insert 1 is taken over with frame. Also the button / rocker base 21 with breakthrough and attachment maintains its shape; flexible line 224 and connectors 225 are reusable parts.

However, the structure of the luminous top is designed 25 as follows. Glass / plastic carrier A 251 has an electrically conductive surface towards the image plane, the same applies to glass / plastic carrier B 253 ; In addition, the carrier A has an electrical connection and connection technology. The light motif 252 can be designed as a transparent film with / without printing; It is also possible to make the coating as a luminescent layer directly on the substrate. Light-uppers 25 forms by laminating the surfaces of a compact dense assembly and can be connected as such or with the lower part fixed or detachable.

The lighting design for brightness and color is as above; Again, a light guide in a transparent frame 16 be beneficial. Furthermore, the light guide and the outlet is given over the edges of the frame, if necessary. Also only the light emission over an edge of the frame with mirrored other sides.

There The OLED layers can also be made transparent, resulting from the EL lamp even more applications, such as the signaling glass switch or the glass switch with orientation light.

A Further embodiment of the invention provides that the assembly Light-uppers with / without lower part of push-button or rocker with a frame (not shown) is provided.

A occurrence form the inventive novelty is given by the fact that the device also as a light signal without switch, e.g. as orientation or Emergency light, application finds.

According to one Another embodiment of the invention is the illustrated shape the light signal switch in rectangular or square design not necessarily; also other designs, such as the cylindrical one Design is possible.

A further characteristic The invention provides that - on the basis of the flat version of the bulb - the spatial Design of frame and light button or rocker is not subject to constraints.

One further application of the subject invention provides that areal EL / OLED bulbs or -Leucht-upper part on other installation equipment, such as e.g. Sockets to transfer.

A Another embodiment of the invention provides a spatial Bulbs for an installation device to make that a area-explanatory Bulb based on flexible support is spatially spanned, 2½D process.

A further form of expression inventive novelty is due to the permanent deformation of the areal Illuminant given by means of tools.

advantageous Further developments of the invention are the subject of the dependent claims; the numerous possibilities and advantages of the embodiment of the invention are reflected in the Number of property rights claims contrary.

1

Switch base / Insert

11

casing

12

housing opening

13

tactile or rocker switch

14

admission

15

Contact socket

16

frame

2

button or seesaw

21

lower part

211

insert

212

opening

213

attachment

22

Lamp

221

Carrier A

222

EL / OLED lamp, -Leuchtschicht

223

Carrier B

224

Connection

225

Connectors

23

luminous film

231

pictogram

232

Hand / printer sheet

24

cover

25

Light-uppers

251

Glass / plastic carrier A

252

light motif

253

Glass / plastic carrier B

Claims (11)

The present invention relates to a spatial surface lighting for the universal lighting use of signaling and orientation in particular for installation devices of building system technology such as switches, buttons, light signals, orientation light devices and sockets, characterized in that a homogeneous over the spatial signaling and / or orientation surface active illumination Help transparent OLED (Organic Light-emitting diode) -Leuchtmittels by means of rigid or flexible carrier as a surface active light source takes place. spatial area lighting especially for installation equipment the building system technology Claim 1, characterized in that as areal active lighting means the OLED lamp is used. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 and 2, characterized in that as areal active illuminant the EL (electroluminescence) lamp is used. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 3, characterized in that areal active illuminant surface parallel and / or arranged several times or layered. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 4, characterized in that the area lighting by filtered Light area active bulb pronounced is. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 5, characterized in that the luminous surfaces areal active Bulbs also by permanently installed or exchangeable, or multi-piece and / or electronically controlled motifs, such as e.g. Decorative foil, pictograms and / or changing motives are formed. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 6, characterized in that the areal active lighting means a one or more pieces Assembly inside the installation device - fixed or movable arranged, mechanically and electrically - forms. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 7, characterized in that the electrical switching and Controllability of the area active light source up to pixel size - single or multi-colored - in the spatial Level as in the spatial Depth - in multi-layered - given is. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 8, characterized in that the light emission of the surface active Led bulb, directed and / or concentrated - also by means of additional Aids, such as Optics or filters. spatial area lighting especially for installation equipment the building system technology at least one of the claims 1 to 9, characterized in that the areal active lighting means a Framing and / or veneering experiences. Spatial surface lighting in particular for installation devices of building system technology according to at least one of claims 1 to 10, characterized in that the surface active light source and / or the installation device is not subject to compelling designs / geometries and / or multidimensional - mechanical and electrical - rigid and / or is flexibly shaped.