High power efficiency LCD

摘要

The invention is directed to systems, methods and computer program products for increasing the power efficiency of a display. An exemplary system includes a transflective display that is operable in either a transmissive mode or a reflective mode, and an illumination source with one or more distinct peaks in the illumination source's transmission spectrum, wherein light from the illumination source is directed towards the transflective display during the transmissive mode of operation. For the transmissive mode of operation, the transflective display's transmission spectrum is configured to substantially match the illumination source's transmission spectrum such that one or more narrow passbands in the transflective display's transmission spectrum substantially overlap with the one or more distinct peaks in the illumination source's transmission spectrum. For the reflective mode of operation, the transflective display's reflection spectrum is substantially inversely related to the transflective display's transmission spectrum.

主权项

1. A method for increasing power efficiency of a transflective display, the method comprising:
providing an illumination source with at least one distinct peak in the illumination source's transmission spectrum; providing a transflective display that has a transmissive mode of operation and a reflective mode of operation; receiving user configuration of the illumination source, wherein the user configuration results in directing light from the illumination source towards the transflective display during the transmissive mode of operation; in response to the user configuration of the illumination source, automatically configuring, by a computer processor, for the transmissive mode of operation, the transflective display's transmission spectrum to substantially match the illumination source's transmission spectrum such that at least one narrow passband in the transflective display's transmission spectrum substantially overlaps with the at least one distinct peak in the illumination source's transmission spectrum; and enabling light from an ambient light source to illuminate the transflective display during a reflective mode of operation, wherein for the reflective mode of operation, the transflective display's reflection spectrum is substantially inversely related to the transflective display's transmission spectrum.