Light guide plate and optical display with backlighting

A light guide plate for guiding of visible light for the backlighting of a liquid crystal display is provided. The light guide plate has two parallel lateral faces and at least one edge face, which serves preferably as a light input face. The light guide plate is a glass that contains B2O3 and SiO2...

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Bibliographische Detailangaben
Hauptverfasser:	Lautenschläger, Gerhard, Alkemper, Jochen, Voitsch, Andreas, Schmidt, Matthias, Kloss, Thomas
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF GLASS HEATING JOINING GLASS TO GLASS OR OTHER MATERIALS LIGHTING MECHANICAL ENGINEERING METALLURGY MINERAL OR SLAG WOOL STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS WEAPONS
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Beschreibung
Zusammenfassung:	A light guide plate for guiding of visible light for the backlighting of a liquid crystal display is provided. The light guide plate has two parallel lateral faces and at least one edge face, which serves preferably as a light input face. The light guide plate is a glass that contains B2O3 and SiO2 as components, wherein the total content of B2O3 and SiO2 is at least 70 weight percent and the B2O3 content is greater than 10%. The total content of metal oxide of divalent metals in the composition of the glass is less than 3 weight percent. Al2O3 is contained between 1 weight percent and 5 weight percent in the composition.