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ID Asks/Michael Murray ID Asks/Michael Murray
Q4 Engineering Pub Date : 2026-01-15 DOI: 10.1002/msid.70021
Sri Peruvemba

Chairman, President, and CEO of Kopin Corporation

Kopin Corporation的董事长、总裁兼首席执行官
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引用次数: 0
Building XR Devices on the Shoulders of Display Giants 在显示器巨头的肩膀上构建XR设备
Q4 Engineering Pub Date : 2026-01-15 DOI: 10.1002/msid.70025
Radu Reit

This issue delves deep into the display and optics technologies enabling extended reality (XR) devices to unravel both technical requirements for the industry, but also the metrology and market factors that will make these devices a success in the discerning eye of the consumer.

本期专题深入探讨了扩展现实(XR)设备的显示和光学技术,以揭示行业的技术要求,以及使这些设备在消费者挑剔的眼光中取得成功的计量和市场因素。
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引用次数: 0
VR and AR Displays Get a Second Wind from the AI Craze VR和AR显示从人工智能热潮中获得重生
Q4 Engineering Pub Date : 2026-01-15 DOI: 10.1002/msid.70026
Guillaume Chansin

Some technologies, such as micro-OLED, LCoS, and microLED, are set to benefit from this renewed interest in headsets and glasses.

一些技术,如微型oled、lco和微型led,将受益于人们对耳机和眼镜的新兴趣。
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引用次数: 0
Soft Proofing in Action 软打样的实际应用
Q4 Engineering Pub Date : 2026-01-15 DOI: 10.1002/msid.70028
Refik Telhan

Observer metameric mismatch is a key issue when using wide color gamut displays for soft proofing.

当使用宽色域显示器进行软打样时,观察者的异色不匹配是一个关键问题。
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引用次数: 0
MicroLED and HUD Feature Prominently at Vehicle Displays and Interfaces Conference MicroLED和HUD在汽车显示和接口会议上引人注目
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70011
Chris Chinnock
<p><b>THE METRO-DETROIT CHAPTER OF THE SOCIETY FOR INFORMATION</b> Display (SID) held their annual Vehicle Displays and Interfaces (VDI) symposium September 9–10 in Detroit. The conference joined technical and business professionals working in relevant automotive areas from academia to industry. This article includes some of the highlights.</p><p>China-based Hongshi Intelligence Technology is developing microLED-based headlights and puddle lights to compete with digital light processing (DLP)-based and alternative LED-based solutions. In their presentation, the company described a three-panel X-cube full-color solution, a 0.61-inch green and white microLED, a 0.12-inch green microLED, along with a novel approach to a full-color monolithic microLED.</p><p>The 0.61-inch device, which is targeted for adaptive dynamic beam (ADB) or smart headlight applications, can be operated in green-only or white modes. In his presentation, Yi Liu (vice president of New Business Development) noted that the engine can achieve 8 million nits in green. Their microLED ADB solution is 50 percent smaller and uses 80 percent less power than a DLP ADB product.</p><p>Their three-panel color solution that uses 0.12-inch displays appears to be similar to the micro-projector offered by Jade Bird Display. The resolution is 640 × 480 with a 0.35 cc volume, 2.5 million nits of brightness, and a 30-degree field of view (FoV) (<b>Fig</b>. 1). They plan to shrink the discrete microLED chips in this product to 0.1-inch or 0.08-inch diagonal and increase the resolution to 800 × 600.</p><p>Liu said that their red-only panel uses quantum-dot (QD) color conversion and has achieved a record output of 2 million nits for devices less than 4 microns, the same size as the native blue microLED. Placing QDs directly on the LED has remained a challenge because of the high flux loading, which can rapidly degrade the QDs. Pacific Light Technologies was developing this technology and was later acquired by ams Osram. But that operation has now been shut down. While 2 million nits is impressive, Liu did not specify the lifetime, so it may not be commercially viable yet.</p><p>Hongshi also has developed a 0.12-inch green monochrome device that can be used for exterior courtesy lights or augmented reality (AR) glasses. This display offers a resolution of 640 × 480 using 3.75 × 3.75-micron microLEDs. Luminance is specified as 8 million nits, but at 3 million nits, the power consumption is a modest 100 mW.</p><p>Hongshi fabricates their monolithic full-color microLEDs using a hybrid stack structure (<b>Fig</b>. 2). This starts with a wafer-to-wafer bonding of the 8-inch complementary metal-oxide semiconductor (CMOS) wafer to an 8-inch GaN-on-silicon substrate that has a green epitaxial (epi) layer. This green epi layer is processed to define green sub-pixels. A second 8-inch GaN-on-silicon wafer with a blue epi layer then is bonded to the pixelated green wafer. Again, sub-pixels are fabricated (one for
信息显示协会(SID)的METRO-DETROIT分会于9月9日至10日在底特律举行了年度车辆显示和接口(VDI)研讨会。会议汇集了来自学术界和工业界的相关汽车领域的技术和商业专业人士。本文包括其中的一些亮点。总部位于中国的红石智能科技正在开发基于微led的前大灯和水坑灯,以与基于数字光处理(DLP)和基于替代led的解决方案竞争。在他们的演示中,该公司描述了一个三面板x立方体全彩解决方案,一个0.61英寸的绿色和白色微型led,一个0.12英寸的绿色微型led,以及一个全彩单片微型led的新方法。这款0.61英寸的设备适用于自适应动态光束(ADB)或智能前大灯应用,可在纯绿色或白色模式下运行。在他的演讲中,刘毅(新业务发展副总裁)指出,该发动机可以达到800万尼特的绿色。他们的microLED ADB解决方案比DLP ADB产品小50%,功耗低80%。他们的三面板彩色解决方案使用0.12英寸的显示器,似乎与青鸟显示器提供的微型投影仪相似。分辨率为640 × 480,体积为0.35 cc,亮度为250万单位,视场为30度(图1)。他们计划将该产品的分立微型led芯片的对角线缩小到0.1英寸或0.08英寸,并将分辨率提高到800 × 600。刘说,他们的纯红色面板使用量子点(QD)颜色转换,并且在小于4微米的设备上实现了创纪录的200万尼特的输出,与原生蓝色微型led的尺寸相同。将量子点直接放置在LED上仍然是一个挑战,因为高通量负载会迅速降低量子点。太平洋光技术公司正在开发这项技术,后来被欧司朗收购。但这项行动现在已经停止。虽然200万单位令人印象深刻,但刘并没有具体说明寿命,所以它可能还不具备商业可行性。鸿实还开发了一款0.12英寸的绿色单色设备,可用于外部礼宾灯或增强现实(AR)眼镜。该显示器采用3.75 × 3.75微米的微型led,分辨率为640 × 480。亮度指定为800万尼特,但在300万尼特时,功耗仅为100兆瓦。鸿实采用混合堆叠结构制造单片全彩微型led(图2)。首先,将8英寸互补金属氧化物半导体(CMOS)晶圆与8英寸具有绿色外延(epi)层的硅基氮化镓(gan)进行晶圆间键合。这个绿色的epi层被处理以定义绿色的子像素。第二个8英寸的硅基氮化镓晶圆,带有蓝色外延层,然后与像素化的绿色晶圆结合。同样,子像素被制造(一个用于蓝色,两个较小的用于红色),使用红色量子点实现红色子像素。一个全彩色像素是由一个大的绿色、中蓝色和两个小的红色子像素组成的。微透镜被添加到每个亚像素以上,以提高收集效率,并提供一个准直光束。然后,晶圆片被切成小块并封装成单独的微显示器。具有可控像素的自适应大灯为驾驶员提供了许多好处。欧司朗于2017年推出了首款基于led的大灯,最近展示了他们的第二代产品evios II。这一创新将可寻址led的数量从1024个增加到25,600个(320 × 80),使用40微米像素间距的微型led。德州仪器于2018年推出了DLP投影解决方案,目前提供一系列选择。这些系统庞大且耗电,这就是为什么基于微led的选择很有吸引力。NS Nanotech开发了用于汽车显示器的纳米线微型led技术。他们最近开发了一种纳米线的封装技术,这将大大有助于平面化和接触的形成。该公司首席执行官Seth Coe-Sullivan指出,他们已经将用于消毒应用的紫外(UV)纳米线微型led商业化,但对于平视显示器(hud)来说,还需要全彩微型led。他们的纳米线生长过程从硅衬底上的氮化镓外延层开始,硅衬底可能包含显示电路。纳米线模板或生长起点是用深紫外光刻方法定义的。这些是六边形图案,六边形的大小决定了它的颜色。六边形越小,发射的波长越短。纳米线的尺寸通常为50到250纳米,需要多个纳米线来制作一个显示像素(1到10微米)。然后开始分子束外延(MBE)生长阶段,在每根纳米线中产生多个量子阱。这是一个单一的生长操作,允许在衬底上制造红、绿、蓝(RGB)纳米线(图3)。 其次,用无机材料填充纳米线之间的空间,以更好地实现纳米线的平面化和顶部p型触点的制造。该公司试验了几种工艺和材料,最终确定了原子层沉积(ALD)工艺来沉积氧化铝(AL2O3)(图4)。每根纳米线的紧密包装也会产生光子晶体结构,这有助于发射的方向性、亮度和效率。科-沙利文展示了他们的绿色设备的结果,他说这是一个小于1微米的设备的世界纪录。他们已经实现了超过25%的外部量子效率(EQE)(在~0.3 A/cm2电流密度下)和超过70%的内部量子效率(IQE)。线宽和方向性也令人印象深刻,绿色光致发光半峰全宽(FWHM)为2-3 nm,电致发光FWHM为~4 nm(峰值在~547 nm)。红色EQE为13%(约1 A/cm2),对应于约500K尼特的红色(波长未指定)。一些公司正在探索替代的微型led结构,如纳米线和金字塔,这可能会提供一条令人兴奋的发展道路。展示可扩展的过程,如一致p接触形成的平面化,是向前迈出的一大步。VueReal首席执行官Reza Chaji建议与会者重新考虑使用微型led的汽车照明。他指出,汽车照明正在经历一场变革性的演变——从被动照明系统到智能、高分辨率的视觉平台,这些平台可以与先进的驾驶辅助系统(ADAS)集成,沟通、通知和增强美学和安全性。VueReal提供用于透明窗口显示器的微led开发套件和用于开发照明应用的套件,如前灯,尾灯,转向指示灯,室内环境灯和数字格栅。VueReal强调了他们用于制造微型led的MicroSolid打印平台。但他们也开发了基于磷的颜色选择,他们声称这种颜色选择比量子点等其他颜色转换技术更好。Chaji指出,离散RGB微型led会随着温度变化而变色,这在汽车环境中是一个挑战。荧光粉温度稳定,提供高EQE和高亮度(10K尼特),并且可以沉积在蓝色或UV微型led上。Chaji还强调了透明微型led和玻璃的融合所提供的新设计选择。显示器可以出现在挡风玻璃、乘客窗户、天窗上,用于车内体验,也可以出现在外部,用于与行人交流。微型led也可以层压在汽车的车身面板上(图5)。如今,GaN外延主要生长在蓝宝石或硅衬底上,但两者都不是完美的晶格匹配,这会导致位错缺陷,从而影响微型led的IQE。此外,随着微型led越来越小,侧壁缺陷的影响也越来越大,大大降低了效率。红色的效率远低于绿色或蓝色。根据麻省理工学院的Jeehwan Kim教授的说法,解决这三个挑战的答案是远程外延,它可以生产超薄的独立氮化膜。这种方法是制作堆叠全彩微型led显示屏的一种方法。远程外延的关键是在起始衬底上使用石墨烯层(GaAs为红色,SiC为绿色和蓝色)。石墨烯层继承了底层的晶体结构,这意味着在生长过程中应力更小(减少缺陷)。石墨烯还与衬底形成弱范德华相互作用,使衬底易于重复使用。然后使用金属有机化学气相沉积(MOCVD)设备进行常规外延生长,以创建薄膜并定义微型led。最终的外延膜层厚度小于1微米。该薄膜堆栈现在可以机械剥离并放置在CMOS,玻璃或柔性基板上进行进一步处理。Kim的团队最近制造了一个5000 ppi的堆叠RGB显示器(图6)。这是一个没有性能数据的实验室演示,所以很明显商业化还有很长的路要走。展望
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引用次数: 0
An Inaugural Year for Sustainable and Green Displays 可持续和绿色展示的首年
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70006
Seth Coe-Sullivan
<p><b>IN THIS ISSUE, WE HIGHLIGHT SOME OF THE MOST</b> impactful papers from the special topic on sustainable and green displays, featured for the first time at Display Week 2025. This issue includes everything from supply chains to valuing the environmental benefits of displays.</p><p>SID's annual Display Week is the best place to see the latest display products and demonstrations, as well as cutting-edge technology research in the display world. But missing from the event was a thoughtful account of how our industry impacts the world beyond these visual wonders. What is the carbon footprint of a TV or of a Gen 10.5 TV fab? Where do the materials come from and end up? Can geopolitics upend this complex supply chain of critical minerals, materials, and goods? Do the visual wonders themselves have an unintended health consequence—for good or bad? This special topic was a resounding success during its debut and will be featured again during the 2026 conference.</p><p>To begin, Wen-Fang Sun of AUO unveils the company's ambitious vision for how displays of the future should be valued—beyond their cost and performance specs and more holistically for their overall cradle-to-grave impact. She highlights several models, compares their accuracy and sensitivity, and provides concrete examples of how valuing displays in this way will give us a more comprehensive and compelling product. AUO optimizes manufacturing processes and materials not only for low cost and high performance, but also for a low carbon footprint, which minimizes environmental harm. They are leading the way in this complex task, and this forum gives them a chance to share these best practices with the entire display community.</p><p>Yusuke Kataoka and colleagues from AGC discuss a high-impact example of how such thinking can lead to greener processes and minimize the environmental effect of our industry. They focus on a process of particular interest to the display industry—tempering glass for use as cover glass in touch applications. This process normally creates lithium waste, and lithium has become a critical material because of its increased importance in batteries for electrical vehicles. Their work shows how a few simple process changes can enable lithium recycling in a nearly closed-loop process. This reduces lithium consumption and waste by over an order of magnitude. This results in obvious financial benefits, but the impact on the environmental profile of display products is perhaps even more important.</p><p>Staying focused on critical materials, Guillaume Gélinas and Alyssa Desuacido from Vital Materials takes us through a deep, display-specific analysis of the mining of several minerals that are a necessary part of display manufacturing and production. This often-ignored early part of the supply chain clearly is growing in importance. This analysis allows us to understand the surprising dependencies we have on diverse industries, regions, and operations that are uncoupled fro
在这一期中,我们将重点介绍一些最具影响力的论文,这些论文来自可持续和绿色展示的专题,这是在2025年展示周上首次出现的。这个问题包括从供应链到评估显示器的环境效益的方方面面。SID的年度显示周是观看最新显示产品和演示以及显示领域尖端技术研究的最佳场所。但是,除了这些视觉奇观之外,我们的行业是如何影响世界的呢?一台电视或10.5代电视工厂的碳足迹是多少?这些材料从哪里来,到哪里去?地缘政治能否颠覆这条由关键矿产、材料和商品组成的复杂供应链?视觉奇观本身是否会对健康产生意想不到的影响——是好是坏?这一专题在首次亮相时取得了巨大成功,并将在2026年的大会上再次出现。首先,友达科技的孙文芳(Wen-Fang Sun)公布了该公司对未来显示器价值的宏伟愿景——超越其成本和性能规格,更全面地考虑其从摇篮到坟墓的整体影响。她重点介绍了几个模型,比较了它们的准确性和灵敏度,并提供了具体的例子,说明如何以这种方式评估显示器将为我们提供更全面、更引人注目的产品。友达优化制造工艺和材料,不仅为了低成本和高性能,而且为了低碳足迹,最大限度地减少对环境的危害。他们在这项复杂的任务中处于领先地位,这个论坛为他们提供了一个与整个显示社区分享这些最佳实践的机会。来自AGC的Yusuke Kataoka和他的同事讨论了一个影响深远的例子,说明这种思维如何导致更环保的过程,并最大限度地减少我们行业对环境的影响。他们专注于显示行业特别感兴趣的工艺,钢化玻璃用于触摸应用中的盖板玻璃。这个过程通常会产生锂废料,而锂已经成为一种关键材料,因为它在电动汽车电池中的重要性日益增加。他们的研究表明,一些简单的工艺变化可以使锂回收在一个近乎闭环的过程中实现。这减少了锂的消耗和浪费超过一个数量级。这带来了明显的经济效益,但对显示产品的环境影响可能更为重要。主要关注关键材料,Vital materials公司的Guillaume gsamulinas和Alyssa Desuacido带我们深入分析了几种矿物的开采,这些矿物是显示器制造和生产的必要组成部分。这个经常被忽视的供应链的早期部分显然越来越重要。这种分析使我们能够理解我们对不同行业、地区和操作的惊人依赖关系,这些依赖关系与所谓的晶体周期无关。他的文章帮助我们了解显示器供应链可能在哪里推动采矿和精炼需求,以及不相关的行业可能在哪里给显示器至关重要的材料带来价格冲击。ALLOS半导体公司的Burkhard J. Slischka对地缘政治如何影响未来显示行业的分析,为有关潜在价格冲击的讨论划上了句号。通过与半导体行业的比较,他阐述了市场份额集中和政府投资是如何将我们带入当前行业的,以及哪些政策和策略可能会影响未来。最后,他展示了如何展示创新可能是一个机会,为未被充分代表的地区安置显示能力向前发展。这组文章展示了显示行业如何超越传统的图像质量指标来衡量性能和影响。明年,这一专题将扩大其重点,包括显示器对健康的影响。作为我们自身成功的受害者,显示行业现在在塑造全球产品销售、供应链动态、关键矿产需求以及我们日常生活的几乎每个方面都发挥着至关重要的作用。人类与显示器的互动可能比其他任何技术都要多,它影响着我们的工作、娱乐、学习和社交方式。重要的是要研究这如何影响我们的个人幸福感和认同感——这是一个真正值得深思的领域。
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引用次数: 0
Critical Minerals: Understanding Display Market Supply Chains 关键矿物:了解显示市场供应链
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70003
Guillaume Gélinas, Alyssa Desuacido

Closed-loop recycling could be the solution to improve material resilience in the supply chain.

闭环回收可能是提高供应链中材料弹性的解决方案。
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引用次数: 0
ID Asks/Ralph John Polshak Jr. ID Asks/Ralph John Polshak Jr。
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70001
Sri Peruvemba

Engineering Leader at the Cutting Edge of Display Technology

在显示技术的前沿工程领导
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引用次数: 0
Effects of Policies and Disruptive Technologies on Displays 政策和颠覆性技术对展示的影响
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70002
Burkhard J. Slischka

Geopolitical developments and emerging disruptive technologies might reshape global display supply chains.

地缘政治的发展和新兴的颠覆性技术可能会重塑全球显示器供应链。
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引用次数: 0
Redefining Metrology for Fast Displays 为快速显示重新定义计量
Q4 Engineering Pub Date : 2025-11-19 DOI: 10.1002/msid.70000
Kenichiro Masaoka, Johan Bergquist

Display response time is a popular indicator of moving image quality, but its poor correlation with motion blur and strong dependence on test pattern design must be addressed.

显示响应时间是运动图像质量的常用指标,但其与运动模糊的相关性较差,对测试模式设计的依赖性较强,必须加以解决。
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引用次数: 0
期刊
Information Display
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