An apparatus for conserving power in information devices with dual functions. A single display panel is logically split into two sub-panels. Each sub-panel can be powered up or down separately as is required by the function of the device. The display panel has a plurality of improved segment drivers...http://www.google.ca/patents/US5841431?utm_source=gb-gplus-sharePatent US5841431 - Application of split- and dual-screen LCD panel design in cellular phones
