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SID Japan Chapter Celebrates 50th Anniversary SID日本分会庆祝成立50周年
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1620
Masanobu Mizusaki
<p><b>THE SOCIETY FOR INFORMATION</b> Display (SID) Japan Chapter (JC) is celebrating its 50th anniversary this year and credits much of its success to the strong support of the Society and its members. Established in 1975, SID-JC was the first chapter founded outside the United States.</p><p>In the 1960s and early 1970s, research and development related to various technologies, such as electrophoretic, vacuum fluorescent, and large-sized video displays, had been conducted in Japan. Around this time, the development of LCD and plasma display panel (PDP) technologies also begun, with similar research in the United States. In 1972, Dr. Akio Sasaki and several Japanese engineers visited Zenith LLC laboratory in the United States and exchanged information regarding various display technologies.<span><sup>1</sup></span> Dr. Sasaki and the engineers felt that this collaboration was significantly important to advance technologies. This led to a discussion on founding a display technology organization in Japan. In 1974, the Japanese scientists and engineers asked SID to participate in their meetings for the purpose of exchanging information. Shortly thereafter, the Japan Chapter was founded through great efforts by Dr. Sanai Mito, who was the first chair of SID-JC in 1975<span><sup>2</sup></span> (<b>Fig</b>. 1). Other significant founders include Dr. Toshio Inoguchi, Dr. Chuji Suzuki, and Dr. Sasaki.</p><p>While celebrating its 25th anniversary, SID-JC held several commemorative events, and we have continued these activities and traditions by hosting several display technology seminars, discussing trends, and providing an annual report at Display Week for Japanese scientists, engineers, and students.</p><p>To commemorate the milestone anniversary of SID-JC in 2025, committee members held meetings to plan a series of celebratory events. Committee members created a SID-JC anniversary logo (displayed on the first page of this article) to honor the chapter's legacy, recognize contributions from its members and the broader SID community, and to foster a sense of unity between SID and SID-JC. Dr. Toshiaki Arai and Dr. Reiji Hattori, the 24th and 25th chairs of SID-JC, suggested the logo type. Then the committee members refined the color tone and shape before finalizing the design. During Display Week 2025, the SID committee prepared a special cake featuring the logo, and all the SID-JC participants were deeply impressed (<b>Fig</b>. 2).</p><p>Five commemorative meetings were held between May 2023 and July 2025 in Tokyo. The first meeting focused on the development of LCD. In the late 1970s, the development of an alignment layer treatment was important to elevate LC device technology to a product level. The rubbing treatment—a technique used in the fabrication of LCDs to control the orientation of LC molecules—was a crucial innovation. The first rubbing machine has been preserved in the Memory Room of RIKEN in Japan to celebrate RIKEN's 100-year anniversary (<
信息显示协会(SID)日本分会(JC)今年庆祝成立50周年,其成功在很大程度上归功于协会及其成员的大力支持。SID-JC成立于1975年,是第一个在美国以外成立的分会。在20世纪60年代和70年代初,日本进行了电泳、真空荧光和大尺寸视频显示器等各种技术的研究和开发。大约在这个时候,LCD和等离子显示面板(PDP)技术的发展也开始了,美国也进行了类似的研究。1972年,佐佐木昭夫博士和几位日本工程师访问了美国Zenith有限责任公司实验室,并就各种显示技术交换了信息佐佐木博士和工程师们认为,这种合作对技术的进步非常重要。这引发了关于在日本建立一个显示技术组织的讨论。1974年,日本科学家和工程师邀请SID参加他们的会议,目的是交换信息。此后不久,在1972年担任SID-JC首任主席的水户三井博士的努力下,日本分会成立了(图1)。其他重要的创始人包括Toshio Inoguchi博士,Chuji Suzuki博士和Sasaki博士。在庆祝成立25周年之际,SID-JC举办了几次纪念活动,我们继续举办了几次显示技术研讨会,讨论趋势,并在显示周上为日本科学家、工程师和学生提供年度报告。为纪念2025年SID-JC里程碑式的周年纪念,委员会成员召开会议,规划了一系列庆祝活动。委员会成员创建了SID- jc周年纪念标志(显示在本文的第一页),以纪念该分会的遗产,表彰其成员和更广泛的SID社区的贡献,并促进SID和SID- jc之间的团结感。SID-JC第24任主席新井敏明(Toshiaki Arai)和第25任主席服部礼司(Reiji Hattori)建议采用标识类型。然后,委员会成员在最终确定设计之前,对色调和形状进行了完善。在展示周2025期间,SID组委会特别准备了一个带有SID标志的蛋糕,所有SID- jc与会者都留下了深刻的印象(图2)。从2023年5月到2025年7月,在东京举行了五次纪念会议。第一次会议集中讨论了LCD的发展。在20世纪70年代后期,校准层处理的发展对于将LC器件技术提升到产品水平至关重要。摩擦处理——一种用于液晶制造的技术,用来控制液晶分子的取向——是一项至关重要的创新。为庆祝日本理化研究所成立100周年,第一台搓揉机被保存在日本理化研究所的记忆室(图3)。这种方法在世界范围内仍用于许多LCD应用。除了对准处理之外,各种显示技术,如彩色、反射LCD、多域垂直对准(MVA)、面内开关(IPS)和光学补偿双折射(OCB) LCD模式相继开发。日本和其他全球LCD制造商将这些技术应用于计算器、个人电脑、电视、汽车导航和智能手机。第二次会议的重点是背板技术,其中包括氢化非晶硅(a-Si:H),低温和高温多晶硅(LTPS和HTPS),以及用于lcd和oled的薄膜晶体管(tft)的氧化物半导体材料。1979年,Walter Spear博士和Paul Le Comber博士首次报道了a-Si:H TFT技术。这是很重要的,因为他们发现a-Si的氢化显著改善了它的电子性能,使其适用于晶体管。1981年,东芝公司发布了一款带有a- si:H TFT的3英寸有源矩阵(AM)液晶显示器的原型样品。自20世纪80年代中期以来,各种LTPS和HTPS TFT液晶被开发出来。氧化物TFT液晶显示器自2000年代以来一直在发展,这与平板显示器(FPDs)的发展相吻合。第三次会议集中讨论了大型显示技术。从2000年代开始,传统的阴极射线管(CRT)显示器被fpd取代,尤其是大尺寸电视和PC显示器。此外,LCD和PDP技术之间也出现了竞争。在21世纪初,pdp因其色彩和对比度而受到大屏幕电视的青睐。然而,到了2000年代中期,lcd在尺寸、视角和响应时间上都有所改进,最终超过了pdp。通过竞争,为大型显示器生产了其他独特的技术,这些技术被转移到其他应用,如汽车显示器和数字标牌。
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引用次数: 0
Automotive Displays to Enter Panoramic Highway 汽车显示器将进入全景高速公路
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1613
Karlheinz Blankenbach

The number and size of displays in cars are increasing and becoming more attractive, making vehicles the third living space.

汽车显示器的数量和尺寸越来越多,越来越吸引人,使汽车成为第三个生活空间。
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引用次数: 0
Manufacturing Advances, Anniversaries, and Sunsets 制造业的进步,周年纪念和日落
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1604
Stephen P. Atwood

This issue brings together two important objectives: an in-depth look back at Display Week 2025 to review the important innovations presented there, and a look ahead to our technical theme that includes exciting discoveries in display manufacturing.

本期杂志汇集了两个重要目标:深入回顾2025年显示周,回顾其中提出的重要创新,并展望我们的技术主题,包括显示制造领域令人兴奋的发现。
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引用次数: 0
Display Metrology Spans the Gamut at Display Week 展示计量学在展示周上跨越了整个范围
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1615
Tom Fiske

Standards, reflection artifacts, spatial interference, and new measurement instruments capture the imagination.

标准、反射伪影、空间干扰和新的测量仪器捕捉了想象力。
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引用次数: 0
AR/VR and MicroLED Breakthroughs AR/VR和MicroLED的突破
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1614
Dave Eccles

AR, VR, and microLED displays are experiencing a surge of innovation in design and manufacturing, pushing the boundaries of visual technology.

AR、VR和微型led显示屏正在经历设计和制造方面的创新浪潮,推动了视觉技术的界限。
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引用次数: 0
Novel Package Design Enhances Optical Efficiency of MicroLED Displays 新型封装设计提高微led显示屏的光学效率
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1609
Naiwei Liu, Yuanhao Sun, Chao Tian, Peilin Zhang, Ming Chen

Design improves light efficiency and reduces color deviation issues caused by the strong sidewall light emission of microLEDs.

设计提高了光效,减少了由微led强侧壁光发射引起的颜色偏差问题。
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引用次数: 0
Big Change Expected, and Needed, from AI and MicroLED 人工智能和微led有望带来巨大变化
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1612
Bob Raikes

Fast technology adoption comes with a necessity to reduce costs and energy consumption, push boundaries, and innovate.

快速的技术采用带来了降低成本和能源消耗、突破边界和创新的必要性。
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引用次数: 0
Ensuring Stuttgart University's Continuous Relevance 确保斯图加特大学的持续相关性
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1619
Chris Boylan
<p><b>FOUNDED IN 1829, THE INSTITUTION PREVIOUSLY KNOWN AS REALE</b> und Gewerbeschule (Consolidated Real and Trade School) had humble beginnings as a trade school in Stuttgart, Germany. Its fields of study included mechanical engineering, construction, metalwork, drafting, and applied physics. With the industrial revolution in full swing, the school prepared its students to enter the workforce directly with a solid foundation in both practical and theoretical knowledge. It also prepared students to pursue further education at universities in Germany and beyond.</p><p>Early in the 20th century, the school expanded its scope to become the Stuttgart Institute of Technology (Technische Hochschule Stuttgart) and evolved from there into a full-fledged university in 1967, the University of Stuttgart (Universität Stuttgart). It has become one of the top learning institutions in Europe, with a strong focus on advanced and applied technology.</p><p>With nearly 21,000 students enrolled in 62 bachelor's and 99 master's programs, the university employs 269 professors, 34 junior professors, and hundreds of other scientific staff, including PhD and postdoctor candidates.</p><p>The University of Stuttgart has gained a solid reputation for its interdisciplinary approach, which combines engineering, natural sciences, humanities, and social sciences. This helps to build not only specialists in niche areas of study, but critical thinkers who can solve complex problems by drawing from multiple disciplines.</p><p>The school has 10 distinct faculties that oversee approximately 150 different institutes, each with specialized fields of study. One example is the Institut für Großflächige Mikroelektronik (IGM), known in English as the Institute for Large Area Microelectronics. Since 1990, IGM has been operating a 500 m<sup>2</sup> clean room fully equipped for producing active-matrix displays and sensor array demonstrators using near-industrial processes (<b>Fig</b>. 1).</p><p>The IGM focuses on the implementation of microelectronics—very small, sometimes microscopic, electronic devices and components—on large surface areas. Its specific fields of commercial application include flat-panel display devices and “smart surfaces,” as well as modulators and filters for optical signal processing. Smart surfaces include any engineered surface that can sense and respond to various stimuli, such as touch, light, proximity, pressure, humidity, and temperature. This technology is not limited to traditional display screens or smart glass, but can be integrated into virtually any solid surface, such as walls, floors, control panels, or even pavement or sidewalks.</p><p>Norbert Fruehauf attended the University of Stuttgart, earning his PhD (Dr-Ing.) in electrical engineering. He has more than 30 years of experience in designing and characterizing liquid crystal light modulators and displays. After completing his degree, Fruehauf worked for Physical Optics Corporation (POC), now part of
该机构成立于1829年,前身为REALE und Gewerbeschule(综合房地产和贸易学校),最初是德国斯图加特的一所贸易学校。它的研究领域包括机械工程、建筑、金属加工、制图和应用物理。随着工业革命如火如荼地进行,学校为学生提供了坚实的实践和理论知识基础,以直接进入劳动力市场。它还为学生在德国和其他国家的大学继续深造做好了准备。20世纪初,学校扩大了其范围,成为斯图加特理工学院(Technische Hochschule Stuttgart),并于1967年发展成为一所成熟的大学,斯图加特大学(Universität Stuttgart)。它已成为欧洲顶尖的学习机构之一,重点关注先进和应用技术。学校现有62个本科专业和99个硕士专业,在校生近21000人,拥有教授269人,初级教授34人,以及包括博士和博士后在内的数百名科研人员。斯图加特大学以其跨学科的方法而闻名,该方法结合了工程,自然科学,人文科学和社会科学。这不仅有助于培养特定研究领域的专家,还有助于培养能够从多个学科中汲取知识、解决复杂问题的批判性思考者。学校有10个不同的院系,管理着大约150个不同的研究所,每个研究所都有专门的研究领域。一个例子是研究所<s:2> r Großflächige microelektronik (IGM),在英语中被称为大面积微电子研究所。自1990年以来,IGM一直在运营一个500平方米的洁净室,设备齐全,可使用近工业流程生产有源矩阵显示器和传感器阵列演示器(图1)。IGM的重点是在大表面积上实现微电子——非常小的,有时是微观的电子设备和组件。其具体的商业应用领域包括平板显示设备和“智能表面”,以及用于光信号处理的调制器和滤波器。智能表面包括任何可以感知和响应各种刺激的工程表面,如触摸、光、接近、压力、湿度和温度。这项技术不仅限于传统的显示屏或智能玻璃,还可以集成到几乎任何固体表面,如墙壁、地板、控制面板,甚至人行道或人行道。Norbert Fruehauf毕业于斯图加特大学,获得电气工程博士学位。他在设计和表征液晶光调制器和显示器方面拥有30多年的经验。完成学位后,弗鲁豪夫在加利福尼亚州托伦斯的物理光学公司(POC)工作,该公司现在是水星系统公司的一部分。在这里,他开发了可调谐的微光学元件,各种显示系统和集成光学元件。2001年,弗鲁豪夫回到德国,被任命为正教授,领导现在的IGM。他目前专注于用于柔性显示器、有源矩阵显示器(AMOLED和AMLCD)以及传感器阵列的大面积微电子应用(图2)。Fruehauf发明了带外部补偿的有源矩阵OLED像素电路。该系统使用薄膜晶体管(TFT)背板来控制单个OLED像素,以及使用外部电路校正TFT和OLED变化的补偿机制,确保整个显示器的亮度、颜色和图像质量均匀,并且随着时间的推移均匀退化。这样可以在制造时保持图像均匀性,也可以在面板老化时保持图像均匀性。该系统于2021年被LG显示器授权,目前用于全球销售的有源矩阵OLED电视。虽然教师和学生调查和参与与显示技术相关的多个领域的研究,但没有一个专门的项目或研究领域专门用于显示科学。显示技术的各个方面是由多个研究所研究的。例如,液晶研究由物理化学研究所(由Frank Giesselmann领导)负责;有机半导体在聚合物化学研究所(Sabine ludwig)进行研究;光学系统研究由应用光学研究所(Stephan Reichelt)负责。IGM目前的重点是研究显示器的制造工艺(特别是背板相关工艺),以及背板设计,新颖的像素电路概念,以及整体显示驱动和集成。IGM是斯图加特光子工程中心(SCoPE)和集成量子科学与技术中心(IQST)的一部分。这些中心在大学的多个研究所内整合了无数学科的学习和研究。 当被问及是什么让在私营部门工作后回到学术界时,他说:“在我回来的时候,德国大学从具有工业背景的科学家群体中招聘工程学教授仍然很普遍,这些科学家曾领导过工业研究或开发团队或更大的团队,最好结合在国外获得的经验。显示技术主席(2011年更名为IGM)的董事职位是在显示制造工艺和显示系统领域进行极其独立的科学工作的一个非常独特的机会。另一个重要的原因是有机会教书,我在攻读自己的高级学位时非常喜欢教书。”IGM遵循德国工程学院的典型结构。除了研究所所长和几位资深科学家(IGM是两位)负责各种第三方资助项目的获取、管理和科学监督外,博士候选人还负责研究工作。这些都是全薪职位,涉及具体的研究项目(候选人不再被视为学生,因为他们通常没有要求)。然而,他们有教学义务,相对高度的自立和对他们具体研究项目的各个方面负责。博士研究生还负责各种本科生和硕士生的研究项目的日常指导。这些通常是与博士候选人自己的研究项目密切相关或产生的项目和主题。例如,开发一个显示驱动器的电子系统,或研究过程作为整个系统的替代方案,由博士候选人开发。除了具有外部补偿的AMOLED反馈电路外,Fruehauf和IGM研究团队还率先在显示方面取得了其他进展(图3)。其中包括经济高效(只有5个光刻掩模)的低温多晶硅(LTPS)工艺和金属氧化物TFT工艺,该工艺使用特定的氧扩散阻挡层来提高铟镓锌氧化物(IGZO)晶体管的稳定性。这些尚未在大规模制造中应用。“我们还开发了一种耐高温、耐高亮度的AMLCD,用于集成到汽车前灯中,为此我们在2017年获得了SID I-Zone奖,”Fruehauf表示。“这些显示屏已被集成到保时捷测试车中,以展示高度自适应前灯的好处。最近的另一个发展是实现了一种基于有源矩阵液晶的反射智能表面(RIS),用于未来6G移动电话系统的无线电波束形成。”在显示领域,Fruehauf看到了简化TFT制造工艺以及改进微led接触方法的潜力,这也可能有助于修复这些精密显示器。在传统显示技术之外,Fruehauf看到了许多进步的机会。除了RIS系统(图4),该小组正在研究和开发创新的封装技术,使用该设施的超高精度打印机,用于接触小芯片和高频微芯片的宽带接触,以及创新的量子传感系统(例如,用于人类和动物呼吸中的一氧化氮检测)。这些传感系统提供了一种非侵入性的方法来帮助诊断和管理呼吸系统疾病,如哮喘。与许多美国大学一样,斯图加特大学在获得足够的资金方面一直面临着挑战。维持一个大的洁净室可能是一项昂贵的提议。根据Fruehauf的说法,筹款需要付出巨大的努力来获得来自欧盟(EU)、联邦和州政府的外部研究资助,以及来自私营企业的直接研究资助。多年来,IGM的大部分资金来自外部第三方来源——大约一半来自公共研究资助,另一半来自与私营公司的直接双边研究伙伴关系。这就要求Fruehauf和他的同事们在基础理论研究项目(主要由政府资助)和更多实际应用相关的研究(由私人公司投资)之间取得平衡。更广泛的研究项目的好处是,这些项目往往会带来创新的新技术,这些技术对研究所获得未来的行业资助至关重要。另一个挑战是如何继续吸引有才华的工程专业新生。虽然人工智能(AI)、机械和计算机工程等领域继续吸引着全球的新学生,但其他工程领域的受欢迎程度已经下降,尤其是在只提供当地语言(在这种情况下是德语)的情况下。 弗鲁豪夫说,斯图加特大学已经能够通过设置两个新的英语硕士课程来
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引用次数: 0
ID Asks/Qun (Frank) Yan ID Asks/群(Frank) Yan
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1611
Sri Peruvemba

Guiding the next generation of display industry visionaries—from research to reality

引导下一代显示行业的梦想家——从研究到现实
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引用次数: 0
MAX OLED Solution for Next-Generation OLED Displays 下一代OLED显示器的MAX OLED解决方案
Q4 Engineering Pub Date : 2025-09-23 DOI: 10.1002/msid.1610
Yu-Hsin Lin, Dieter Haas, Ji-Young Choung, Chung-Chia Chen, Sheng-Wen Wang, Jungmin Lee, Wenhao Wu, Jae-Wook Jeong, Takashi Anjiki, Manuel Radek, Stefan Keller, Si-Kyoung Kim, Max McDaniel, Indrajit Lahiri

A breakthrough in OLED display pixel architecture and manufacturing technology will enhance display performance and enable a wider range of applications.

OLED显示像素架构和制造技术的突破将提高显示性能并实现更广泛的应用。
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引用次数: 0
期刊
Information Display
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