OLED arrays integrated on planarized Si micro-sphere active-matrix backplanes

OLED 阵列集成在平面化硅微球有源矩阵背板上

• 批准号: 491917-2015
• 负责人: Aziz, Hany
• 金额: $ 1.82万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=587134
• 关键词: OLED; arrays; integrated; planarized; Si

The display market is currently ~ $100B US per year, worldwide, and relies predominantly on the LCD technology. Downward pressure on price is making Organic Light Emitting Device (OLED) displays the logical evolution for display industry as OLED displays can be cheaper to make, more energy efficient and have superior image quality than LCD displays. However, OLED displays have been limited to small sizes due to low manufacturing yield of large display "backplanes", the electronics that drive the pixels in Active-Matrix (AM) displays. The lack of high performance and manufacturable electronics for OLED displays is known as the "backplane problem" for OLEDs. Christie Digital is investigating a new technology that will resolve this issue. In this technology, crystalline Si micro-spheres, embedded in a ceramic sheet, are used a backplane substrate in which the transistors of the AM electronics can be fabricated. Using crystalline Si allows realizing transistors with very high carrier mobility (>500 cm2/V·s), providing screen brightness levels and switching speeds that are several orders of magnitude higher than those achievable via the existing technologies. At the same time the approach is not constrained by the size scale-up limitations of existing technologies and therefore can allow the realization of very large displays, for example, for the entertainment industry and other large size screen applications. In this ENGAGE project, we will integrate these novel backplanes with OLED arrays in order that the performance of the Si-microsphere technology can be assessed and optimized. In taking this step, a new approach that will lower manufacturing costs will also be pursued. The successful completion of the project will therefore produce a more reliable method for producing OLED displays, resulting in new jobs and other economic benefits in Canada, and will strengthen and expand Canada's competitive position in generating knowledge and technology solutions in this fast growing and critical area of technology.

目前，全球显示器市场规模约为每年1000亿美元，主要依赖LCD技术。价格下降的压力使有机发光设备(OLED)显示器成为显示行业的逻辑演变，因为OLED显示器比LCD显示器制造成本更低，能效更高，图像质量更好。然而，由于大显示器“背板”(驱动有源矩阵(AM)显示器中的像素的电子设备)的制造成品率较低，OLED显示器一直被限制在小尺寸。OLED显示屏缺乏高性能和可制造的电子设备，这被称为OLED的“背板问题”。克里斯蒂数字公司正在研究一种新技术，将解决这个问题。在该技术中，将镶嵌在陶瓷片中的晶体硅微球用作背板衬底，在背板衬底上可以制造AM电子器件的晶体管。使用晶体硅可以实现具有非常高的载流子迁移率的晶体管(&gt；500cm2/V·S)，提供比通过现有技术实现的高出几个数量级的屏幕亮度级别和开关速度。同时，该方法不受现有技术的尺寸放大限制，因此可以实现非常大的显示器，例如用于娱乐业和其他大尺寸屏幕应用。在这个项目中，我们将把这些新型背板与OLED阵列集成在一起，以便对硅微球技术的性能进行评估和优化。在采取这一步骤时，还将寻求一种降低制造成本的新方法。因此，该项目的成功完成将产生一种更可靠的生产OLED显示屏的方法，为加拿大带来新的就业机会和其他经济利益，并将加强和扩大加拿大在这一快速增长和关键技术领域产生知识和技术解决方案方面的竞争地位。