Information Display最新文献

THE VISUAL COMMUNICATION TECHNOLOGY (VCT) PROGRAM AT Bowling Green State University (BGSU) in Ohio launched 50 years ago with the goal of teaching students how to become creative visual communication problem solvers. Instead of focusing on one area of visual media, the program gives students an in-depth understanding of many different aspects, including print, photography, videography, and forms of interactive media.

In the five decades since the program's start, visual communication technologies have changed dramatically, but the unique classroom and industry experience that students gain in the VCT program has continued to lead graduates to successful careers in many industries.

“The basic premise of this degree is more relevant now than ever before,” said Donna K. Trautman, PhD, associate professor in the VCT program. “The degree has evolved due to the nature of technology, but the hallmark is media agility—being able to problem solve visual media issues, choose the best solutions, carry them out, and then evaluate the effectiveness.”

The VCT program is part of the School of Engineering within the College of Technology, Architecture and Applied Engineering. Gene Poor, professor emeritus in the college, and the late Jerry Streichler, a former technology professor and the founding dean of the College of Technology, established the program in 1973 with the concept of teaching students how to be “gifted generalists” in visual media.

“We're in the College of Technology because of the continual advancement of the technology, the applied nature of the program, and our partnerships with industry,” said Trautman. “We complete the circle of a visual media project, from the idea and conception to problem solving and planning, all the way to the end with execution, and even some installations.”

Approximately 120 students are in the program. They will graduate with a bachelor's degree in technology, guided by five full-time faculty members with expertise in different areas of visual communication technology (Fig. 1).

Trautman came to the VCT program in its early years as an undergraduate student, drawn to it because of its applied nature. “When I entered the program, it was well before computers were used on a regular basis,” she said. “The real draw was being able to identify the problem, make decisions, and become media agile. Understanding the what and why of what you're doing, who the audience is, and then figuring out a solution is very empowering.”

Students start with introductory courses in print, photography, video, and interactive multimedia. Then they choose a career track in one or two visual media areas. About 20 to 30 students every semester choose to take a research-based course during which, depending on their interest, they develop an idea and then write a plan for a research study (Fig. 2). These deep dives span the gamut from animatronics and immersive exhibits, color manag

IF YOU WANT SOME PERSPECTIVE ON JUST HOW FAR OUR BELOVED industry has come in the last few decades, look to SID's extensive archives, including conference proceedings, JSID, and of course Information Display (ID). First published in 1964, most of ID's issues from the ensuing years are available in the archives (archive.informationdisplay.org). Throughout the year, we will comb through past issues and reflect on interesting storylines from years gone by. Let me know if you have a favorite memory or milestone to share. To begin, we recognize ID's 60th anniversary with this first installment of the “Looking Back” series.

The very existence of liquid crystals (LCs) was a hotly debated topic until 1904. At that time, E. Merck (now known as Merck KGaA), a successful pharmaceuticals and chemicals company in Darmstadt, Germany, helped to settle this scientific dispute by providing highly pure liquid-crystalline materials to the public. Discovered first by Austrian botanist Friedrich Reinitzer and later confirmed by German physicist Otto Lehmann, the liquid-crystalline state, or mesophase, was identified as a new, distinct state of matter that could occur between the solid and liquid phases.

In the February 2004 issue of ID, an article on the history of commercial LC materials¹ covered many decades of research into the uses for LCs (Fig. 1). It highlighted the discovery of the dynamic scattering mode published by George Heilmeier in 1967—and a year later, the first flat display employing LCs based on this effect. From there, the next five decades produced a groundbreaking and crucial technology building block for our entire industry.

Some of you still may have the glass mug commemorating 100 years of LCs. It was distributed during a special event at Display Week 2004 (Fig. 2). (I just had tea in mine the other day.)

Progress is fickle, so also in 2004, the changeover from cathode ray tube (CRT) to LCD and plasma direct-view TVs was gaining momentum. This was driven in part by the rapid adoption of DVDs for movies, the conversion from analog to digital TV, and the convergence of technologies that supported PC monitors and big-screen displays.² This was the last year for unit sales growth of large-screen CRTs and the first real year of growth for active-matrix (AMLCD) and plasma display panel (PDP) TVs. Even with the known performance limitations of flat panels at the time, the transition away from tubes was inevitable.

Technical challenges included the need for overdrive in LCDs to overcome artifacts because of response time limitations and ways to drive AMOLED panels with amorphous-silicon (a-Si) thin-film transistors (TFTs). This was driven in part by the limitations in producing poly-Si TFTs. We have come a long way!³

While early AMLCDs were struggling with performance challenges, t

Volume 31 contains 12 issues of the Journal of the Society for Information Displays (JSID)—a great way to end 2023. JSID achieved a new impact factor milestone, reaching a 2.3. I want to extend heartfelt congratulations to all the authors, reviewers, and associated editors who contributed to this success. I am confident that JSID and the display community will continue to prosper in 2024. Volume 32 of 2024 will feature the best articles from Display Week 2024, the International Conference on Display Technology (ICDT) 2023 and 2024, and International Display Workshops (IDW) 2023. We also are working on two special issues that focus on AR/VR/MR and quantum dots (QDs) and their applications in displays. We will publish these issues during the second quarter.

Visit the JSID website for the latest exciting display-related research: https://sid.onlinelibrary.wiley.com/journal/19383657.

Toward physically realistic vision in teleoperation: A user study with light-field head mounted display and 6-DoF head motion | Nicolai Bechtel et al. | https://doi.org/10.1002/jsid.1262

The main limitation for HMDs is the mismatch of the 3D distance and the focal distance of visualized objects (vergence-accommodation conflict, VAC) in displays with fixed focal distance that leads to eye strain after extended use. Here, the authors applied a light-field HMD, providing close-to-continuous depth information to the user to avoid VAC. They also deployed a time-of-flight sensor to generate a 2.5D environment model. The displayed content is processed with image-based rendering, allowing a 6-degree-of-freedom head motion in the visualized scene. Reduction of visual effort for the user is confirmed in an abstract depth-matching task.

The authors demonstrated a focal surface projection to solve the narrow depth-of-field problem in projection-mapping applications. They applied a phase-only spatial light modulator to realize nonuniform focusing distances, whereby the projected content appears focused on a surface with considerable depth variations. The feasibility of the proposed technique was validated through a physical experiment.

Modern virtual-real fusion (VRF) technology has the problem of single-function and fixed integration, limiting the popularization and application of VRF technology. In this article, the authors proposed a framework named synchronous mixed reality (SMR) to personalize the VRF system and maintain the balance between interaction efficiency and environmental immersion. The authors combine an instance segmentation algorithm with an interaction prediction algorithm. To evaluate the effectiveness of the SMR framework, the authors designed three scenarios based on the interaction properties of physical objects and measured environmental immersion, systematic interaction efficiency, and user experience. The results confirm that the SMR framework meets diverse needs in various cond