KOMPAKTES BELEUCHTUNGSSYSTEM UND ANZEIGEVORRICHTUNG

A compact backlight system for illuminating a display device has a front wall and a rear wall situated opposite thereto. At least one light source comprising a light-emitting diode is provided with a translucent lens-shaped cover. The system has at least one light input structure for coupling light...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KEUPER, MATTHIJS H
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING 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 LIGHTING MECHANICAL ENGINEERING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	A compact backlight system for illuminating a display device has a front wall and a rear wall situated opposite thereto. At least one light source comprising a light-emitting diode is provided with a translucent lens-shaped cover. The system has at least one light input structure for coupling light from the light source into the light-emitting panel. During operation, light originating from the light source is incident on the light input structure and distributes itself in the light-emitting panel. According to the invention the light input structure is conically or frustoconically shaped towards the light source. The thickness dp of the light-emitting panel is smaller than the diameter dc of the translucent lens-shaped cover of the light source. Preferably, the light input structure is of prismatic or pyramidal shape.