Display element used in motor car, has partial transparent film that is arranged between luminous surface and decorative layer

• Main Authors: EICKHOFF, MARCUS, BENDICKS, NORBERT, RICHWIN, MATTHIAS
• Format: Patent
• Language: English; German
• Published: 16.05.2012
• Subjects: ADVERTISING; ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL; BASIC ELECTRIC ELEMENTS; BLASTING; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LABELS OR NAME-PLATES; LIGHTING; MECHANICAL ENGINEERING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PERFORMING OPERATIONS; PHYSICS; RELAYS; SEALS; SELECTORS; SIGNS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

The element has a luminous surface (2) based on an electroluminescent or organic light emitting diode light source, that is formed on a decorative layer (1). A partial transparent film (4) is arranged between the luminous surface and decorative layer. The transparent film is provided with optical properties, for homogenizing the light flux property of luminous surface. An absorbing layer is coated on the surface of transparent film. The light source irradiates planar light on the surface of decorative layer through a light guide plate (3). Beschrieben wird ein Anzeigeelement, insbesondere für ein Bedienelement in einem Kraftfahrzeug, mit einer Dekorschicht, mit mindestens einer Leuchtfläche, die die Dekorschicht hinterleuchtet und die durch eine flächig abstrahlenden Lichtquelle oder durch eine Lichtquelle zusammen mit einem flächig abstrahlenden Lichtleiter gebildet ist, wobei zwischen der Dekorschicht und der Leuchtfläche eine zumindest teilweise transparente Schicht angeordnet ist und, wobei die Schicht lateral variierende optische Eigenschaften zur Homogenisierung des Lichtflusses des Leuchtfläche aufweist.