Dielectric layer structure and performance

点击翻译按钮获取中文摘要

CLEARink Displays Corporation is a Vancouver technology start-up developing new display technology. Theirtechnology is an alternative to liquid crystal displays and organic light emitting diodes which operate withsignificant power consumption. CLEARink has developed a novel reflective display technology that offersvideo rate capability with ultra-low power consumption. Their technology is based on the use of chargedparticles in a fluid to control the reflectivity of ambient light from its novel reflector films. When chargedparticles are in the vicinity of the reflector film, reflectivity is hindered, providing image contrast. Control overof the charged particle location is achieved by applying small voltages to thin conductor and dielectric layers inthe display device stack. Fine control of particle location and mobility in response to the applied fields iscritical for display performance, but can be affected by the properties of the conductor and dielectric layers.CLEARink is seeking to further optimize this control in order to improve contrast, and device response time.Here, we propose to address these issues by examining the materials properties of the dielectric thin films andtheir connection to display performance. The fabrication and characterization capabilities available at SFU's 4DLABS in conjunction with our expertise in surface science and materials chemistry make this new partnershipwith CLEARink ideal. Using scanning electron microscopy, x-ray diffraction and atomic force microscopy, thequality of dielectric layers will be assessed in relation to device performance. Working closely with CLEARinktechnical staff, we will also investigate device performance with dielectric films deposited by differentmethods, and where dielectric films have been further modified through additional barrier layers deposited byphysical and chemical methods. The expected outcomes of this project are to provide CLEARink withimproved control over their display characteristics and to accelerate their path to commercial production. Thiswill provide broader benefits to Canada through enhanced employment opportunities, wealth generation, andpave the way for further high technology development opportunities.