SBIR Phase II: Monolithic Integration of LED Arrays and Silicon TFTs for Super High Brightness Microdisplays

SBIR 第二阶段：用于超高亮度微显示器的 LED 阵列和硅 TFT 单片集成

• 批准号: 1353485
• 负责人: Vincent Lee
• 金额: $ 75万
• 依托单位: Lumiode, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-04-01 至 2018-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1353485&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Monolithic; Integration

This Small Business Innovation Research (SBIR) Phase II project aims to develop a new high brightness light engine platform by monolithically integrating high performance silicon transistors with compound semiconductor optoelectronic materials. Dense arrays of light emitting diodes (LEDs) have been previously fabricated to show the opportunity of using such arrays in microdisplay and projection concepts. However, without active control circuits, the ultimate brightness and resolution are limited. The technology developed in this SBIR uniquely allows for the fabrication of LED arrays with integrated control circuits on a single substrate enabling a light engine platform with high peak brightness, high dynamic range, and high efficiency. Prototype LED arrays and transistor devices have been fabricated, and the next step to realize this platform is the development of advanced silicon circuitry to directly control the LED arrays and color generation methods to achieve full-color displays. The anticipated results of this project are on-chip driving circuits and development of color generation methods which will be integrated with arrays of LEDs to form a commercially-ready prototype.The broader impact/commercial potential of this project is the development of a light engine with a power efficiency, brightness, cost, and form factor unavailable in incumbent systems. In particular, three markets are identified where this technology significant advantages over current technologies. These include the microdisplay market, the pico projector market, and the projector market. This light engine platform offers a small form factor, long lifetime, environmental robustness, high energy efficiency, and the high brightness required for sunlight readability. These features are necessary to create truly ubiquitous display devices and enable new see-through augmented reality experiences or smaller, more integrated portable projectors, not possible with current technologies. Commercialization of this device will impact all of these areas and also enable a range of new downstream applications including other non-display industries, such as, 3D scanning and novel user interfaces.

该小企业创新研究（SBIR）二期项目旨在通过单片集成高性能硅晶体管和复合半导体光电材料，开发一种新的高亮度光引擎平台。密集的发光二极管阵列（led）先前已经制造出来，以显示在微显示和投影概念中使用这种阵列的机会。然而，没有主动控制电路，最终的亮度和分辨率是有限的。在SBIR中开发的技术独特地允许在单个衬底上制造具有集成控制电路的LED阵列，从而实现具有高峰值亮度，高动态范围和高效率的光引擎平台。原型LED阵列和晶体管器件已经被制造出来，实现这个平台的下一步是开发先进的硅电路来直接控制LED阵列和颜色生成方法，以实现全彩显示。该项目的预期结果是片上驱动电路和颜色生成方法的开发，这些方法将与led阵列集成，形成商业化的原型。该项目的更广泛的影响/商业潜力是开发一种轻型发动机，其功率效率、亮度、成本和外形因素在现有系统中是不可用的。特别指出，在三个市场中，该技术比现有技术具有显著优势。其中包括微型显示器市场、微型投影机市场和投影机市场。这种光引擎平台提供了一个小的形状因素，长寿命，环境坚固性，高能效，以及阳光可读性所需的高亮度。这些特性对于创造真正无处不在的显示设备和实现新的透视增强现实体验或更小、更集成的便携式投影仪是必要的，这是目前技术无法实现的。该设备的商业化将影响所有这些领域，也将推动一系列新的下游应用，包括其他非显示行业，如3D扫描和新型用户界面。