A backlight assembly for a gauge of an automotive display panel and a method of illuminating a gauge of an automotive display panel is provided. The backlight assembly includes a lightpipe having a U-shaped configuration and a reflective dish surrounding the lightpipe. The lightpipe and the reflective dish are disposed on a mounting plate of the gauge above a liquid crystal display (LCD). Additionally, the backlight assembly includes one or more top firing light emitting diodes (LEDs) disposed adjacent to the lightpipe. The LEDs emit light to the lightpipe which in turn transmits light to the reflective dish. The reflective dish reflects back or disperses the light evenly to illuminate the graphic applique of the gauge.
Backlight assembly
2017-02-14
Patent
Electronic Resource
English
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein |
BACKLIGHT ASSEMBLY FOR VARYING OPTICAL CHARACTERISTIC COMPONENTS
European Patent Office | 2024
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