Temperature-compensated LED-backlit liquid crystal displays

A display system with temperature compensation includes (a) a backlight unit containing a light emitting diode (LED) array, (b) a liquid crystal display (LCD) containing a plurality of pixels for spatially modulating, according to respective LCD drive values of the pixels, transmission of light gene...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: McElvain, Jon S, Dai, Qiqin
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A display system with temperature compensation includes (a) a backlight unit containing a light emitting diode (LED) array, (b) a liquid crystal display (LCD) containing a plurality of pixels for spatially modulating, according to respective LCD drive values of the pixels, transmission of light generated by the LED array, (c) a plurality of temperature probes mounted to the backlight unit for measuring a respective plurality of temperatures at the LED array, (d) a light-field simulator for simulating, at least in part based upon the temperatures, a light field at the LCD as generated by the LED array, and (e) an LCD drive solver for processing a target image and the light field simulated by the light-field simulator, to determine the LCD drive values required to display the target image as compensated for temperatures of the LED array.