Gregg Combs

69.4: Novel Flexible Reflective Color Media Integrated with Transparent Oxide TFT Backplane

A novel architecture and proprietary electrically addressable inks have been developed to provide disruptive, print-like full color reflective digital media solutions based on an electrokinetic technology platform. The thin, flexible, low-power, reflective electronic media is fabricated with a new roll-to-roll manufacturing platform. Here we demonstrate the integration of this media with multi-component oxide (MCO) thin-film transistor (TFT) backplane for an active matrix reflective electronic display.

Novel flexible reflective color media with electronic inks

A novel architecture and proprietary electronic inks were developed to provide disruptive digital-media solutions based on an electrokinetic technology platform. The flexible reflective electronic media (eMedia) was fabricated by imprinting three-dimensional microscale structures with a roll-to-roll manufacturing platform. The HP technologies enable the required attributes for eMedia, such as low power, transparency, print-quality color, continuous levels of gray, and low-cost scalability. Pixelation was also demonstrated by integrating with the prototype oxide thin-film transistor backplane, and the system architecture was further developed by stacking primary-colorant layers for color reflective-display application. The innovations described in this paper are currently being developed further for the eSkins, eSignage, and ePaper applications.

CWDM transceiver for mid-board optics

The need for additional IO bandwidth for data center device interconnection is well established. Optical interconnects can deliver required bandwidth along with energy and space efficiency at a cost that encourages adoption. To this end, we are developing an optical transceiver incorporating multimode VCSEL emitters in a coarse wavelength division multiplex (CWDM) system capable of transmission at 25Gbps per channel, 100Gbps/fiber, and a maximum aggregate bidirectional data rate of 1.2Tbps. Electrical connection to the transceiver can be made by solder reflow or LGA connector, and optical connection is made by means of a custom optical connector supporting CWDM transmission.

67.3: Electrophoretically Controlled Nematic LCD: Plastic Bistable Technology with Memorized Intrinsic Grey Scale

Here is presented a nematic LCD based on an electrophoretically controlled orientational effect in suspension of solid nanoparticles in nematic liquid crystal: electrophoretically controlled nematic (EPCN). Polarity controlled electromigration of the nanoparticles, results in the stabilization of the molecular alignment and provides the bistable/multistable switching in a conventional nematic LC cell. The EPCN display allows multiplexing with intrinsic grey scale capability, high resolution and contrast, uses standard LCD materials and techniques and is easily producible by plastic technology.