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KENT, OH, United States

Patent
Kent Displays, Inc. | Date: 2013-10-18

A drawing tablet device, utilizing a data capture device in connection with a pressure sensitive display, provides electronic information corresponding to images drawn on the pressure sensitive display to an external device. The drawing tablet includes a communication interface to couple the drawing tablet to the external device to transmit electronic information corresponding to images in real-time or as stored files.


Patent
Kent Displays, Inc. | Date: 2013-11-01

A cholesteric liquid crystal (ChLC) electronic writing device incorporates a dot pattern recognition system. When writing pressure is applied to the writing device an image composed of writing or drawing is displayed by a pressure sensitive ChLC polymer dispersion stacked in a multilayer system of the device. A specialized stylus with sensor and associated electronics is used to form the image on the electronic writing device. The stylus produces electrical information indicating the path or trajectory of the writing that is displayed by the electronic writing device, which can be transferred via wireless signal to any other displaying device. This forms a replica image on the displaying device that is a replica of the image on the electronic writing device.


Patent
Kent Displays, Inc. | Date: 2015-04-03

An electronic display includes electrically conductive layers. An active layer is disposed between adjacent electrically conductive layers. The active layer includes cholesteric liquid crystal material. At least one transparent front substrate is disposed adjacent one of the electrically conductive layers near a front of the display. A semitransparent back layer absorbs light that passes through the active layer, reflects grey light or light of a color and is light transmitting. Electronic circuitry applies a voltage to the conductive layers that enables at least one of erasing or writing of the active layer.


Patent
Kent Displays, Inc. | Date: 2013-01-30

An electronic display comprises an electro-optic layer comprising electro-optical material. The display includes a first electrically conductive layer and a second electrically conductive layer, the electro-optic layer being disposed between the first electrically conductive layer and the second electrically conductive layer. A first substrate is disposed adjacent the first electrically conductive layer and a second substrate is disposed adjacent the second electrically conductive layer. The first substrate and the second substrate are formed in a shape that has at least one outer peripheral edge boundary, excluding any ledges. Internal ledges are disposed inside the at least one outer peripheral edge boundary. A first of the internal ledges comprises a portion of the first substrate and an exposed portion of the first electrically conductive layer and a second of the internal ledges comprises a portion of the second substrate and an exposed portion of the second electrically conductive layer.


Grant
Agency: National Science Foundation | Branch: | Program: STTR | Phase: Phase II | Award Amount: 722.04K | Year: 2015

This Small Business Technology Transfer (STTR) Phase II project develops eWriter devices for classroom use as a sustainable paper replacement technology and an effective tool for student-teacher interaction. The eWriters provide a paper-like writing experience and electronically capture, store, and transfer handwritten text and images. For education, eWriters introduce a sustainable paper replacement technology at a lower cost than other classroom technologies. The eWriters enable handwritten student work to be wirelessly uploaded to teachers and to virtual whiteboards. Positive societal impacts come from improved teaching methods and student-teacher interactions, particularly for high quality science, technology, engineering and mathematics (STEM) pedagogy, where handwritten notes are advantageous. The most immediate societal benefit of educational eWriters is significant reduction in paper usage, carbon footprints, and costs for schools. Expanding domestic high tech roll-to-roll production of eWriters benefits the flexible electronics supply chain and materials development. The eWriter display technology, developed and manufactured in Ohio, is exported around the world. This project helps sustain both the U.S. economy and the environment. Existing eWriter product, distribution, retail channels, and marketing give a strong platform for commercialization. This project impacts numerous and far reaching areas in education, environmental improvement, domestic manufacturing, materials improvements, and process development. This project enables digital writing for K-12 and post-secondary classrooms along with a seamless information and communication system so teachers and students can effectively exchange handwritten work digitally and reduce paper use. The research objectives include the development of eWriter technologies (ruggedness, performance, design), the development of software ecosystems for classrooms (use models, user interface systems), and the development of usage strategies for new teaching techniques. Multidisciplinary methods will be used involving researchers in education, liquid crystal display technology, engineering, and software development to successfully achieve project objectives. Experts in the application of technology in education will develop and evaluate eWriter usage strategies for improved instruction and student performance depending on grade level and teaching style. This new type of education technology has tremendous and far reaching impacts in areas of pedagogical techniques, flexible electronics, liquid crystal and polymeric materials, and environmental sustainability. The anticipated results are a suite of eWriter devices and systems to be deployed in K-12 and post-secondary education. The lead organization will commercialize these new products into educational markets leveraging existing sales and marketing infrastructure.

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