Small Firms Collaborative R&D Project with Rainbow Displays, Endicott, NY

9815599Kroger本项目是美国国家科学基金会研究中心-小企业合作研发计划的一部分，由国家科学基金会成立的S/国际商业研究中心综合电子工程中心领导。该项目是宾厄姆顿大学和彩虹显示公司(RDI)的合作研发计划。后者是一家位于纽约州恩迪科特的小型初创企业，其目标是以具有竞争力的成本生产大屏幕有源矩阵液晶显示器(LCD)，方法是将四个小LCD贴片，以生产单个、大面积、(对人眼)无缝的显示器。该项目将解决与液晶显示技术相关的两个不同问题，正如之前RDI通过原型硬件所展示的那样。第一个是与承载驱动设备(驱动屏幕上的像素)的FLEX电路和玻璃显示屏上的铟锡氧化物(ITO)金属化之间的互连的可靠性有关。大学研究人员和RDI粘接工程师将共同开发一种可靠的、最佳的粘接工艺。第二个问题涉及复合层压板中瓷砖的组装。平铺的LCD几乎是对接在一起的，厚度可能略有不同。目前的组装方法使用液体粘合剂来吸收任何高度的差异，并填充面板之间的空洞。RDI将把LCD面板对接在一起，并在LCD和保护玻璃盖板之间使用聚合物薄膜类型的粘合剂。这将提供更高的分辨率，最大限度地减少面板对齐要求，并降低组装成本。这项研究将利用现有的代码对所提出的结构进行建模，并评估薄膜材料特性、薄膜厚度和LCD面板厚度与装配参数：辊速度、压力、曲率、宽度等之间的交互作用。

9815599KrogerThis project is carried out as a part of the NSF Research Centers - Small Firms Collaborative R&D initiative, under the leadership of the Integrated Electronics Engineering Center, an S/IUCRC established by the National Science Foundation.This project is a collaborative research and development program between Binghamton University and Rainbow Displays Inc. (RDI). The latter is a small start-up enterprise located in Endicott, NY, whose goal is to produce at a competitive cost, a large screen active matrix liquid crystal display (LCD) by tiling four small LCD's to produce a single, large area, seamless (to the human eye) display. The project will address two different problems associated with liquid crystal display technology as previously demonstrated, with prototype hardware, by RDI. The first is related to the reliability of the interconnection between the flex circuitry which carries the driver device (which actuates the pixels on the screen) and the Indium - Tin Oxide (ITO) metallization on the glass display screen. University researchers and RDI bonding engineers will jointly develop a reliable, optimum bonding process.The second problem involves the assembly of the tiles in a composite lamination. The tiled LCDs are almost butted together and may have slightly different thickness. The present method of assembly uses liquid adhesive to take up any differences in height and to fill the cavity between the panels. RDI will butt the LCD panels together and use a polymer film type adhesive between the LCDs and the protective glass cover plate. This will provide improved resolution, minimize panel alignment requirements and reduce the cost of assembly. This study will use existing codes to model the proposed structure and to evaluate the interaction between the film material properties, film thickness and LCD panel thickness with the assembly parameters; roller speed, pressure, curvature, width etc.