EP1958015A1 - Element indicateur pour un appareil electrique - Google Patents

Element indicateur pour un appareil electrique

Info

Publication number
EP1958015A1
EP1958015A1 EP06807501A EP06807501A EP1958015A1 EP 1958015 A1 EP1958015 A1 EP 1958015A1 EP 06807501 A EP06807501 A EP 06807501A EP 06807501 A EP06807501 A EP 06807501A EP 1958015 A1 EP1958015 A1 EP 1958015A1
Authority
EP
European Patent Office
Prior art keywords
light
display element
display
emitting diode
scattering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06807501A
Other languages
German (de)
English (en)
Inventor
Martin Buchstab
Irene Dumkow
Adolf Feinauer
Klaus Flinner
Bernd Heger
Peter Nalbach
Kasim Yazan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1958015A1 publication Critical patent/EP1958015A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Definitions

  • the present invention relates to a display element via a light display in an electrical device, in particular a household appliance such as a refrigerator or freezer.
  • Light-emitting diodes have long been used for small-format LEDs. In recent years, very bright light emitting diodes in all colors of the spectrum have come on the market increasingly.
  • Object of the present invention is to provide a display element with a light emitting diode, which is simple and compact and easy to read from a wide range of angles.
  • At least two light-scattering elements are arranged in the beam path between the light emitting diode and the backlit display panel.
  • the first of these serves to fan out the collimated beam of the light emitting diode so that it illuminates the second light scattering element on a large area.
  • the display element is clearly visible to any viewer whose display panel and illuminated second diffusing element are in line.
  • At least one of the light-scattering elements, the second lying in the beam path is preferably a ground glass. This can be realized in a simple manner as a coating layer applied on the display itself.
  • the light-scattering element adjacent to the light-emitting diode is preferably a lens.
  • a cylindrical lens is used to illuminate a display panel having a cavum / width ratio different from one. A panel that is wider than tall is a good place to label short texts or single words.
  • the beam path can be surrounded by the light-scattering elements of reflective side surfaces to avoid light losses to the sides.
  • Figure 1 is a schematic perspective view of a water dispenser for installation in a refrigeration device, which is equipped with display elements according to the invention.
  • Figure 2 is a view of the refrigerator with built-in water dispenser.
  • FIG. 3 shows a horizontal section through display elements of the water dispenser according to a first embodiment
  • FIG. 4 shows a section analogous to FIG. 3 according to a second embodiment
  • Fig. 5 shows a section analogous to FIG. 3 according to a third embodiment.
  • FIG. 1 shows a plastic housing provided for installation in a refrigeration appliance door with a substantially cuboid base body 1, which is provided to be mounted inside the door, embedded in an insulation material layer, and a flat parallelepiped projection 2, which is provided, to project in the assembled state by a cut into the outer wall of the door window. Pins 3 of the projection 2 serve to anchor at the edges of the window.
  • An outlet for water and / or ice which is not visible in the figure, opens into a central niche 4 to fill a container placed there. Above the niche 4 is a plurality of control buttons 5. Over this light wells 6 are visible, which each belong to display elements which indicate a related to the operation of the control buttons 5 state of the water dispenser or an icemaker.
  • a transparent plastic cover 7, which is offset in the figure conceals the light shafts 6 and has a plurality of openings 8, through which the control buttons 5 are accessible.
  • Fig. 2 shows by way of illustration the water dispenser mounted in the door 9 of a refrigerator.
  • An attached frame 13 surrounds the projection 2 and conceals edges of a cut into the front of the door 9 solid.
  • Fig. 3 shows a horizontal partial section through the water dispenser of Fig. 1 in a horizontal, extending through the display elements level.
  • Each display element comprises a mounted on a board 10 LED 1 1 and a front, held in a socket of the body 1 diverging lens 12. Since the light wells 6, as shown in Fig. 1, are wider than high, the lenses 12 are cylindrical or astigmatic, d. H. it has a shorter focal length in a horizontal sectional plane than in a vertical sectional plane.
  • the diverging lenses 12 each close one end of the light wells 6, the other end is covered by the aperture 7.
  • the light-emitting diodes 1 1 facing inside the aperture 7 is formed as a ground glass, z. B. by sandblasting, by a glued scattering foil, applied scattering lacquer or the like.
  • Aperture 7 attached. Due to the action of the diverging lens 12, the lettering is uniformly illuminated over its entire surface, and due to the ground glass at the
  • the frame 13 is also visible in section, which is clamped and held on the one hand between a side edge of the projection 2 and one of the pin 3 and on the other hand rests against the front of the outer wall 14 of the door and so the edge of the door concealed window through which the projection 2 extends.
  • the light shafts 6 are replaced by integral with the diverging lenses 12 crystal-clear plastic body 15, the light at their side walls 16 by total reflection to the diaphragm 7.
  • each display element on a light shaft 6, but the diverging lenses 12 are replaced by a second ground glass 17, which also fanning the light beam of the LEDs 1 1 striking them.
  • this walls are here preferably mirrored or at least white colored.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Elément indicateur pourvu d'une diode électroluminescente (11) et d'un champ indicateur (7) rétroéclairé par la diode électroluminescente (11). Selon la présente invention, dans cet élément indicateur (7), la trajectoire du faisceau lumineux traverse au moins deux éléments (12, 17) dispersant la lumière.
EP06807501A 2005-11-30 2006-10-24 Element indicateur pour un appareil electrique Withdrawn EP1958015A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005057166A DE102005057166A1 (de) 2005-11-30 2005-11-30 Anzeigeelement für ein elektrisches Gerät
PCT/EP2006/067705 WO2007062935A1 (fr) 2005-11-30 2006-10-24 Element indicateur pour un appareil electrique

Publications (1)

Publication Number Publication Date
EP1958015A1 true EP1958015A1 (fr) 2008-08-20

Family

ID=37588907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06807501A Withdrawn EP1958015A1 (fr) 2005-11-30 2006-10-24 Element indicateur pour un appareil electrique

Country Status (6)

Country Link
US (1) US20090303695A1 (fr)
EP (1) EP1958015A1 (fr)
CN (1) CN101317116A (fr)
DE (1) DE102005057166A1 (fr)
RU (1) RU2008121418A (fr)
WO (1) WO2007062935A1 (fr)

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EP2189089B1 (fr) 2006-06-16 2012-11-14 Nestec S.A. Dispositif de distribution de boissons avec système de support et de récupération de gouttes pour récipients de différentes tailles
CN201129642Y (zh) * 2007-11-29 2008-10-08 博西华电器（江苏）有限公司 发光二极管显示模组以及使用该模组的洗涤设备
US8915177B2 (en) * 2008-08-08 2014-12-23 Nestec S.A. Beverage machine with carrying handle and configurable appearance and side functions
US7961455B2 (en) * 2009-06-05 2011-06-14 Toyota Motor Engineering & Manufacturing North America, Inc. Display device having guides linking buttons to display information
WO2012072764A1 (fr) 2010-12-01 2012-06-07 Nestec S.A. Interface utilisateur ergonomique destinée à une chambre d'ingrédients motorisée
WO2012072761A1 (fr) 2010-12-01 2012-06-07 Nestec S.A. Machine à boisson avec indicateur fiable pour utilisateur
US9008874B2 (en) 2011-01-26 2015-04-14 Toyota Motor Engineering & Manufacturing North America, Inc. System and method for managing power in a vehicle
US10099560B2 (en) 2011-01-26 2018-10-16 Toyota Motor Engineering & Manufacturing North America, Inc. System and method for maintaining the speed of a vehicle
DE102015201427A1 (de) 2015-01-28 2016-07-28 BSH Hausgeräte GmbH Berührungsempfindliches, beleuchtbares Bedienpanel, Verfahren zu seinem Betrieb sowie dieses Bedienpanel enthaltendes Hausgerät
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Also Published As

Publication number Publication date
WO2007062935A1 (fr) 2007-06-07
RU2008121418A (ru) 2010-01-10
DE102005057166A1 (de) 2007-05-31
CN101317116A (zh) 2008-12-03
US20090303695A1 (en) 2009-12-10

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