Harvesting waste light in a portable computing device

An electronic device is disclosed that redirects light escaping from a display assembly light source to an illuminable region of the electronic device. In some embodiments, the electronic device includes a light guide panel arranged along a rear surface of the display assembly and configured to rece...

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Bibliographische Detailangaben
Hauptverfasser:	Casebolt Matthew P, Ligtenberg Christiaan A, Giddings Joss N, Hamel Bradley J, Sfarzo Steven J
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CALCULATING COMPUTING COUNTING 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 ELECTRIC DIGITAL DATA PROCESSING FREQUENCY-CHANGING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING 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:	An electronic device is disclosed that redirects light escaping from a display assembly light source to an illuminable region of the electronic device. In some embodiments, the electronic device includes a light guide panel arranged along a rear surface of the display assembly and configured to receive light escaping from a lateral side of the light source. The light guide panel can then be arranged to transport that light to a position behind the illuminable region and emit it back out in a focused beam having a size about the same as the illuminable region. In some embodiments the illuminable region can be a logo or device identifier.