US 7,321,354 B1 | ||
Microdisplay for portable communication systems | ||
Jeffrey Jacobsen, Hollister, Calif. (US); John C. C. Fan, Chestnut Hill, Mass. (US); Stephen A. Pombo, Campbell, Calif. (US); Matthew Zavracky, Plympton, Mass. (US); and Rodney Bumgardner, Cupertino, Calif. (US) | ||
Assigned to Kopin Corporation, Taunton, Mass. (US) | ||
Filed on Dec. 13, 1996, as Appl. No. 8/766,607. | ||
Application 08/766607 is a continuation in part of application No. 08/741671, filed on Oct. 31, 1996, granted, now 6,545,654. | ||
Int. Cl. G09G 3/36 (2006.01); H04N 7/14 (2006.01) |
U.S. Cl. 345—102 [348/14.02] | 28 Claims |
1. A docking system for a portable wireless telephone, the portable wireless telephone including a microphone, a speaker,
and transceiver circuitry with an external communication interface within a telephone housing, the docking system comprising:
a display housing having a plurality of control elements and a display circuit, the display housing including a connection
interface that couples with an external communication interface of a handheld wireless telephone, such that image data received
by the handheld wireless telephone is transmitted to the display circuit;
an active matrix liquid crystal display mounted to the display housing and connected to the display circuit, the display circuit
generating display data presented on the liquid crystal display as an image;
a light source positioned in the display housing to illuminate the image;
a lens in the display housing positioned to receive the image presented on the active matrix liquid crystal display; and
a power management circuit that controls the power consumption of the display circuit, wherein after the image is illuminated,
the power management circuit lowers the power consumption of the display circuit until new display data is ready to be presented
on the liquid crystal display, the power management circuit arranged for receiving control signals for lowering the power
consumption, the control signals resulting from signals from the display circuit that are initiated by the display circuit,
the power management circuit and the display circuit being connected together and arranged in a configuration that lowers
the power consumption in a self regulating manner.
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