IDW '17
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I-DEMO (Innovative Demonstration Session) offers an opportunity for an interdisciplinary technical demonstration/discussion for accepted papers. Our objective is to try to vitalize discussion and encourage research and development by allowing participants, through demonstrations of actual devices, to see, feel and experience the originality and high innovativeness of new technologies in the accepted papers.

Date & Place

Date: December 7, 2017
Time: 15:00 - 18:00
Place: Exhibition Hall, Sendai International Center

IDW '17 Demonstrators

LCT3/DES3 - 1 The Optimal Fast Response LCD for VR-HMD
T. Matsushima, K. Seki, S. Kimura, Y. Iwakabe, T. Yata, Y. Watanabe, S. Komura (Japan Display, Japan )
LCT3/DES3 - 3 Near Eye Application Based on Digital Electro-Optics Platform (X-on-Silicon)
C.-W. Tsai, F. Lin, C. Wang (Jasper Display, Taiwan )
  Digital Electro-optics Platform is the main concept of Jasper Display Corp. (JDC) to develop various applications. These applications are based on our X-on-Silicon technologies, for example, X-on-Silicon technologies could be used on Micro LED on Silicon (μLEDoS), Liquid Crystal on Silicon (LCoS), OLED on Silicon (OLEDoS), and Cell on Silicon (CELLoS), etc. μLEDoS technology is applied to Augmented Reality (AR), Virtual Reality (VR), Head Up Display (HUD), Head-mounted Display (HMD), and Wearable Devices. In addition, LCoS technology is applied to Micro Display, Spatial Light Modulator (SLM), Dynamic Optics, Wavelength Selective Switch (WSS), Holographic Display, Microscopy, Bio-tech, 3D Printing and Adaptive Optics, etc. In this I-DEMO at International Display Workshops (IDW’17), JDC would like to demo Micro-LED display technology based on digital electro-optics platform. People really need to see the demo to appreciate what this new technology can achieve and its capabilities. It is the next generation of display unlike anything we have seen so far. In addition, we also demo the LCoS spatial light modulator (LCoS-SLM), dynamic optics, holographic display, and adaptive optics technologies based on the same digital electro-optics platform (X-on Silicon).
LCT4 - 3 Advance FSA(UV Curing Like) Process Technology to Improve Broken Spot for G8.6 TFT-LCDs
Y. Yao, J. Chou, J. Hsu, W. York (Chongqing HKC Optoelect. Tech., China )
LCT7 - 1 Highly Transparent Color LCD by Using Scattering LCD Mode, Direct Edge Light and Field Sequential Color Driving Method
K. Okuyama, T. Nakahara, Y. Numata, T. Nakamura (Japan Display, Japan )
  We have developed highly transparent color liquid crystal display (LCD) using newly developed scattering-type liquid crystal, which shows transparent state when voltage is applied lower than a threshold voltage (Vth), with field sequential color (FSC) driving method without employing color filter and polarizer. This newly developed display has high transmittance (80 %), wide color gamut and fast response time. This new high transmittance display allows viewers to see the background image and the displayed foreground image clearly and contemporaneously. We believe that this attractive technology will realize future transparent display application. We will present highly transparent color 4.0-inch prototype.
LCTp3 - 8L An ECB Mode LC Device Suitable for Low Power Consumption Smart Windows
S.-J. Lee*, D.-S. Yoon*'**, H.-S. Yang*, E.-J. Kim*, S.-B. Kwon*'** (*Hoseo Univ., Korea **NIDS, Koera)
  We developed an ECB mode LC device. The device has a specified transmittance between the minimum and maximum transmittances can be given in voltage off state. The design rule and electro-optical properties of it are discussed. It is suitable for active smart windows used buildings and vehicles. It can control the transmittance of sunlight, provide many benefits such as energy saving, eye protection, aesthetic value improvement, and privacy protection.
AMDp2 - 8 Study the Characteristics of a-Si:H Thin Film Transistors by Covering with Different Materials
W.-Y. Li, Y.-F. Chou, P.-J. Chiang, C.-W. Liao, X.-D. Liu, L.-Q. Shi, R.-L. Chen, S.-J. Chen, L.-M. Zeng, T.-H. Wang, X.-W. LV, C.-Y. Lee (Shenzhen China Star OptoElect. Tech., China )
FMC4/FLX5 - 1 Development of Printed Electronics Device by Nano-Scale Roll to Roll Patterning
T. Tanaka, M. Abe, N. Ito, K. Okuno, T. Hitomi, K. Komatsu, M. Oshikata, M. Ataka*, T. Kishiro*, S. Matsui**, M. Okada** (Asahi Kasei, Japan *Holon, Japan **Univ. of Hyogo, Japan )
OLED4 - 4 High Efficiency Large Area White Organic Light-Emitting Diodes Using Phosphorescent Materials – Degradation and Stability Improvement
M. Seetharaman, A. Mohan, A. Awasthi, S. Bindu, G. Garg, J. Meenakshinathan, K. Manohara, M. Balakrishnan, M. Katiyar (Indian Inst. of Tech., India )
  Organic light-emitting devices (OLEDs) have shown great potential for solid state lighting and flat-panel displays. In recent time, it is estimated that almost one-fifth of the electrical energy produced in the world is utilized for lighting applications. As a result, there is an urgent need for finding alternatives for the conventional solid state lighting devices which are energy efficient and cost effective. White organic light-emitting diodes (WOLEDs) are a promising candidate for the solid state lighting over other technologies due to their advantages such as large area surface diffusive emission, manufacturability and eco friendliness. With the successful commercialisation of WOLEDs, it is expected to be efficacy competitive with that of inorganic light emitting diodes (LEDs). This can be achieved with various high performance materialslike triplet harvesting phosphorescent light emitting materials and also, different device architecture strategies like employing out-coupling films for light extraction. In our work, we would like to demonstrate a high efficiency WOLED based on phosphorescent materials, with a lighting area of around 6400 mm2, which could be progressively used for lighting applications. The demonstrator will feature a two phosphorescent emitter system based  large area WOLED panel with a warm white colour emission, with CIE co-ordinates (0.40,0.46) and a high performance of current efficiency of 48.0 cd/A and powerefficiency of 34 lm/W at 1000cd/m2forrequired for commercial lighting applications.
OLEDp1 - 9L Large-Area Flexible OLED Fabricated by Full Roll-to-Roll Processes from Transparent Electrode to Encapsulation
S. M. Cho, C. Kim, E. Jung, G. Y. Han (Sungkyunkwan Univ., Korea )
  Large-area flexible OLED panels were successfully fabricated by a roll-to-roll vacuum evaporation. The panels were fabricated on silver-nanowire (AgNW) transparent electrodes by roll-to-roll process. Fabricated flexible OLED panels were finally encapsulated with a moisture-barrier film by roll-to-roll process. All fabrication processes for large-area OLED panels were roll-to-roll. The width of the OLED panels is 150 mm and the panel length ranges from 300 to 1 m.
3D1/DES2 - 1 Development of 55-in. 8K-3D IPS LCD with 3D Polarization Filter
J. Maruyama, R. Oke, T. Murakoso, I. Hiyama, Y. Kato, Y. Umezawa*, T. Sato*, T. Takahashi*, H. Yamashita**, K. Tanioka**, T. Chiba** (Panasonic Liquid Crystal Display, Japan *Arisawa Manufacturing, Japan **Kairos, Japan )
3D4 - 4 HOE-Based Screen for Virtual-Image Projection and Scene Capture
T. Nakamura*,**, S. Kimura***, K. Takahashi***, Y. Aburakawa***, S. Takahashi*, S. Igarashi*, M. Yamaguchi* (*Tokyo Tech, Japan **JST PRESTO, Japan ***NTT DoCoMo, Japan )
  We present a screen system using the holographic optical element (HOE) that works as an off-axis mirror, which enables virtual-image projection and portrait capture simultaneously. The holographic off-axis mirror realizes off-axis image transfer, which realizes displaying the virtual image of an object at the off-axis position and capturing the portrait of the observer simultaneously. The system can be used for interactive aerial display for more attractive visual communication systems. As a general problem In imaging through a HOE, an image is blurred by chromatic dispersion. To address the problem, the system integrates optical systems to compensate the dispersion inside a prototype.
3D5 - 2 Full HD Autostereoscopic Display Based on Time-Multiplexed Parallax Barrier with Adaptive Time-Division
H. Kakeya, A. Hayashishita, M. Ominami (Univ. of Tsukuba, Japan )
  We demonstrate an autostereoscopic display with adaptive time-division multiplexing parallax barrier. A full-HD stereoscopic image can be observed without wearing any special glasses or markers. When time-division triplexing is applied in place of the conventional time-division quadruplexing parallax barrier, the image becomes brighter without destroying stereoscopy.
3Dp1 - 4 A Flexible Pipeline from a Multi-View Camera to an Integral 3D Display
T. Oooka, K. Takahashi, K. Hara*, M. Katayama*, M. Kawakita*, T. Fujii (Nagoya Univ., Japan *NHK, Japan )
  We have developed a flexible pipeline from a 25-view camera to an integral 3D display that supports both the horizontal and vertical parallaxes with more than 400 views. The camera is used to obtain not only multi-view images but also depth maps from each viewpoint with the aid of structured illumination. Using the multi-view images and depth maps, dense multi-view images necessary to present a real scene with an integral 3D display are synthesized via depth-image based rendering. In the pipeline, we can control an appearance of the displayed image through our user interface. For example, captured 3D objects can be displayed with the desired amount of pop-out and optionally separated from the background. This interactive control is a feature of our pipeline and it is why we argue that our pipeline is flexible. In I-DEMO, we will demonstrate the pipeline with interactive control.
3Dp1 - 6 A 2x2 Waveguide Holograms Attached on LCD Panel for a Multi-Function Display
W.-T. Liu*, W.-K. Lin*,**, B.-S. Lin**, W.-C. Su* (*Nat. Changhua Univ. of Education, Taiwan **Nat. Chiao Tung Univ., Taiwan )
3Dp1 - 7 Color Compact Head-Mounted Holographic Display Using Laser Diodes
H. Kubo, Y. Oguro, Y. Sakamoto (Hokkaido Univ., Japan )
3Dp1 - 9 An Efficient Backlight Design for Directional Backlight Autostereoscopic Display
K. Li, X. Chen, Y. Zhou, H. Zhang, C. Chen*, H. Fan*, J. Wang, J. Zhou (Sun Yat-Sen Univ., China *Guangzhou Midstereo Tech., China )
  The design requirement has a great difference between 2D display and auto-stereoscopic display. But a practical auto-stereoscopic PC monitor should behave well in both 2D and 3D modes. In 2D mode, the luminance, resolution, and uniformity of auto-stereoscopic display is not lower than the common 2D display, and the viewing area should not be a strict limit. When switching to 3D mode, besides these conventional parameters, the crosstalk, response speed and the 3D feeling must be outstanding. With high luminance, low crosstalk, full resolution and good uniformity, the product we would show, 24 inches FHD auto-stereoscopic PC monitor, can meet the above demand, providing a very comfortable 2D/3D viewing experience. From our test, the crosstalk is less than 2.5%, and the luminance difference is less than 9%. And luminance can be adjusted between 50 - 500 cd/m^2. An efficient backlight is designed to satisfy the stringent requirements, including suitable light guide, reflector and diffuser. The elaborate light guide work as an optical fiber. With total reflection, most light rays are guided in a specified angle and project into the mix tooth optical film we design. All of these optical characters and the visual effect is predicted by our simulation program, and verify well in the final project we would show. The eye-tracking program and electronic process control panel ensure the stability and reliability characteristics.
VHF4 - 3 Numerical Rating of Motion Image Quality on Latest 4K TVs Using Viewing-Distance-Free Robust Approach
I. Kawahara (FairSpec, Japan )
  The world’s first shootout of OLED and LCD, comparing and measuring true motion performance, using numerical rating scale called “Effective Frame Rate (EFR)” is demonstrated. Evaluation of true moving image quality of display is optimized, by performing response checks in a wide range of resolution and speed for achieving high reliability, while reducing checking points in testing, by following the simple EFR criteria to improve efficiency of the evaluation. Overall performance of display including panel refresh frequency, backlight control, and signal processing are reflected and reported numerically through the visual assessment using dedicated test pattern sequences. With this evaluation, or measurement to be fair, a TV with true 120 Hz drive with proper signal processing should be rated with a score of "2.0 EFR", meaning a twice performance of a basic 60 Hz system. While at the same time, a 60 Hz TV with 50% hold time duty, equipped with very fast device, should also be entitled as "2.0 EFR", securing a double performance of basic 60 Hz system. Through the demo using tough test patterns and beautiful sceneries, you can check possible motion artifact if exists, as well as high potentials of 4K HDR TVs.
VHF5 - 3 Simplified Method to Quantify Sparkling of Antiglare Display without Image Processing and Its Application
M. Hayashi (Daicel, Japan )
  Antiglare treatment is a kind of anti-reflection processing, which is applied to a display surface in order to improve visibility by blurring ambient light reflected upon the view area.  Meanwhile, the phenomenon that the displayed image scintillates, what we call, “sparkling” often generates as the difficulty to deteriorate the quality of displayed image.  It is empirically known that the sparkling becomes more remarkable as the display pixel is getting finer.  Therefore, it has been recently one of the most significant problems to be solved as the market share of the display devices with high definition, such as a smartphone, a tablet PC, a 4K device, etc., has been growing.  Since the issue of sparkling is quite complicated and should be improved by coordinating a variety of display components, a proper method to evaluate sparkling has been eagerly desired.  The “antiglare sparkling analyzer” displayed in I-DEMO session is the apparatus to provide the simple and accurate solution to quantify magnitude of sparkling phenomenon.  Our system can capture the sparkling image in the same manner as observed by human’s eye.  The evaluation results show excellent correspondence to the sensory estimations without using conventional image processing techniques such as Fourier transform, Low-pass treatment and so on.
VHF5 - 4 Reduction of Visual Fatigue in Displays by Surface Treatments
Y. Yang, H. Cui, Y. Yang, P.-H. Lung, Y. Zhang* (Wuhan China Star Optoelect. Tech., China *China Nat. Inst. of Standardization, China )
  Anti-reflection(AR) and anti-glare(AG) surface treatments on cover glass(CG) reduce the reflection and glare, resulting in improved legibility and less visual fatigue for readers. The new process of AR and AG surface treatments on CG lead to the least sparkle on 5.5-inch FHD displays. The ghost images in AGAR displays become dimmer due to the low reflection ratio and excellent diffusion effect. Visual ergonomics on normal display panel showed that CG with both AR and AG performed best for readers subjectively.
VHFp3 - 9L New Metric for Resolution Evaluation Based on Human Visual Perception
K. Choi, B. Min, J. Kim, S. Choi (Samsung Elect., Korea )
EP1 - 3 Highly Reflective Electrostatic Shutter Display
E. Schlam, J, Finch, J, Koskulics (New Visual Media Group, USA )
MEET5 - 1 Luminescent Perovskite-Polymer Composite Films for Display
J. He, H. Chen, Y. Wang*, C. Zhang, H. Chen, S.-T. Wu, Y. Dong (Univ. of Central Florida, USA *Chinese Ac. of Sci. China )
MEETp2 - 11 Design and Research of a Vehicle Mounted Curved Surface Screen
R. Chen, H. Zhou, Z. Zhang, L. Fang, J. Chen, S. Wu, J. Kang, X. Zhou, P. Shen, J. Li (Xiamen Tianma MicroElect., China )
FLX2/LCT1 - 2 Organic LCD: Large Area, Low Cost, High Performance LCDs on Plastic
P. A. Cain, J. Harding, M. Banach (FlexEnable, UK )
FLX6 - 1 Roll-to-Roll Processing of Functional Films for Flexible Electronics
J. Fahlteich, M. Fahland, P. Kudlacek*, W. Manders*, M. Junghähnel, S. Mogck, C. Keibler (Fraunhofer Inst. for Organic Elect, Germany *HOLST Ctr., The Netherlands )
INP5 - 3 Integrated Transparent NFC Antenna on Touch Display
Y. Sugita, J. Mugiraneza, S. Yamagishi (Sharp, Japan )
INP7/UXC6 - 1 New In-Cell Capacitive Touch Panel with Fine Pitch Sensor for Narrow Passive Stylus and New User Interface
F. Gotoh, H. Mizuhashi, H. Kurasawa, Y. Kida, Y. Nakajima (Japan Display, Japan )
  We have successfully developed an 8-inch 4K UHD in-cell touch IPS-LCD with 1.2 mm fine pitch sensor. By applying the Code Division Multiplex (CDM) technology, the SNR is improved dramatically, resulting in the successful use of 1 mm tip passive stylus. Also this newly developed display can obtain the high-resolution touch-image data. You can experience the possibility of the fine pitch sensor on our demonstration.
INP7/UXC6 - 2 Drawing in Talking: Using Pen and Voice for Drawing System Configuration Figures in Talking
X. Xu, J. Liao, H. Shibata (Fuji Xerox, Japan )
  We proposes a multimodal user interface system using pen and voice to draw system configuration figures in natual taking. The  prototype system called TalkingDraw was built using C# on a Surface Pro 3 with a Surface Pen. When we attend a team discussion, brainstorm meeting, or giving a lecture, we often draw rough figures or diagrams on the spot to express our intention. It helps conveying messages easily and precisely and helps building mutual understanding among speakers and listeners. In this research we aim to support such a drawing-in-talking process. We especially focus on the support of drawing system configuration figures quickly and easily. We adopted a multimodal input approach, which makes use of different input modalities such as touch, pen, and speech in an integrated manner.  We also introduced two modes: a free mode and a command mode to avoid unintentional behaviors when users are just freely talking and drawing. In the free mode inputs such as pen or speech are not considered as command. In the command mode inputs are considered as constituents of a command. Therefore, we need to provide easy interaction techniques for mode switching without interfering natural drawing and talking.  We presented four mode switch techniques and evaluated them: Button, Tap, Pen-holding, and Pigtail. The result of two experiments showed Pigtail in which users specify the command mode after actions was the most efficient.
INP7/UXC6 - 3 The Effect of Edge Targets on Crossing-Based Selection with Direct Touch Input
K. Go, Y. Kagawa, Y. Kinoshita (Univ. of Yamanashi, Japan )
  In this I-DEMO, we demonstrate the experimental setting on the paper: “The Effect of Edge Targets on Crossing-Based Selection with Direct Touch Input.” The paper presents experimental results on evaluating the effect of edge targets on crossing-based selection in the touch screen environment. The results indicated that the edge targets had a negative effect on selection time while they had a positive effect on accuracy when compared with the center targets on screen. In addition to the experimental setting, we show some relating projects on which we have been working in our research lab, including an investigation of smartwatch touch behavior.
UXC2/VHF2 - 3 Relationships Between Reading Speed and Eye Movement Parameters
J. Kobayashi*,**, T. Kawashima** (*Dai Nippon Printing, Japan **Future Univ. Hakodate, Japan )
  We analyzed the relationship between reading rate and eye movement parameters. We propose new layout techniques to decrease inefficient eye movements when reading Japanese text. The reading speeds obtained with the proposed layouts are faster compared to a conventional Japanese layout.
UXC3/INP3 - 1 Lateral Force Produces Geometry and Texture Information on Touchscreen
S. Saga (Univ. of Tsukuba, Japan )
  We introduce a method that allows the user to simultaneously feel both large geometry and small textures on a touchscreen. Lateral force based haptic illusion enables geometry display, and direction-controlled mechanical vibration enables texture display. The method allows many kinds of geometry and texture information easily. To display geometry information, we employ haptic-illusion. Our experiment result revealed that if one wants to display same virtual height information from a scene that have several spatial wavelengths, we have to control the magnitude of the displayed lateral force according to the dominant spatial wavelengths in the scene. Then we propose to employ multi-resolution analysis based on Haar wavelet basis in order to measure the distribution of spatial wavelengths. By employing recorded mechanical vibration, our system displays textural information. In addition, the extracting display method easily displays many kinds of texture information without requiring a library of vibration signals.In the near future, many kinds of remote or virtual communications will have tactile media, too. Eventually, the method proposed here will become a simple, feasible, and fundamental technology taking its place alongside other touchscreen technologies.
HAP1/INP2 - 2 Body Motion Estimation by Machine Learning
Y. Makino, Y. Horiuchi, H. Shinoda (Univ. of Tokyo, Japan )
HAP2/INP4 - 2 Physical Interactions on Flat Panel Displays Using Electrostatic Actuation Technologies
A. Yamamoto (Univ. of Tokyo, Japan )
  A multi-user surface haptic system will be demonstrated. The surface of a 40-inch LCD monitor is covered with a transparent ITO electrode, on which two operation pads are arranged. Applying high voltages to the pads creates haptic effects by electrostatic attraction force. A pilot application program (hockey game) allows two users to experience independent haptic feedback that is synchronized with visual information rendered on the LCD.
HAP2/INP4 - 3 Tactile Display with Friction Reduced by Ultrasonic Vibration
M. Takasaki (Saitama Univ., Japan )
  A tactile display using surface acoustic wave (SAW) which is a kind of ultrasonic vibration has been developed. This device can render tactile sensation like roughness. Basic principle is on friction reduction induced by the wave and its control. To enjoy the rendered tactile sensation, user should rub the presentation area in the middle of LiNbO3 substrate through a slider, which is actually aluminum film. The slider can enhance the rendered tactile sensations and protect user’s finger against strong ultrasonic vibrations. During the rubbing motion, friction between the slider and the substrate can be reduced by intermittent contact due to the ultrasonic vibration though there is normal kinetic friction without the wave. Switching the wave at certain intervals results in fluctuation of frictional forces. Then, the fluctuation involves vibrations on user’s finger surface. For example, the switching at 200 Hz can induce the finger surface vibration at 200 Hz. The frequency and duty ratio are controlled according to finger position and rubbing speed. Such control can enhance realistic rendering. Experimental setup was developed for I-Demo. Operating frequency of SAW was 15 MHz and excited by IDTs and reflectors. Switching frequency and duty ratio was controlled by a microcomputer to enjoy roughness sensation. On the other hand, constant switching frequency up to 10 kHz was also possible. In the demonstration, participants can experience higher frequency vibration more than 1 kHz. To consider realistic rendering, frequency range of the vibration to be presented on the display can be discussed.
HAP2/INP4 - 4 Subjective Haptic Technology and Its Applications
Y. Tanaka*,** (*Nagoya Inst. of Tech., Japan **JST PRESTO, Japan )
  Tactile sense is subjective because it depends on our body and movements as well as contact objects. Focused on such inner characteristics, we have developed a wearable sensor for analyzing and/or communicating individual tactile sensations. Furthermore, tactile information collected by this sensor can be presented with a simple vibrator for sharing tactile sensations.
HAP3/INP6 - 1 Use of Shape Memory Alloy as a Haptic Technology for Displays Panels
M. Gondo, A. Hirano (Seidensha, Japan )
  The devices we present had been modified to be equipped with our Shape memory alloy Impact Actuator. The user can experiment the sharper and stronger haptic provided by our SIA actuator on application like smartphone, trackpad, steering wheel or navigation system.
HAP3/INP6 - 4 Vibration Feedback for Representing Haptic Interaction
M. Konyo (Tohoku Univ., Japan )
HAPp1 - 2 Vibrotactile Representation of Camera Motion with Two Vibrators
D. Gongora, H. Nagano, M. Konyo, S. Tadokoro (Tohoku Univ., Japan )
  Haptic effects enrich audio-visual media but their creation can be time consuming. In this demonstration, visitors will experience a 360 video with a Head-Mounted Display accompanied by vibrations automatically generated from the motion in the video. Participants will hold a vibrator in each hand to feel vibrations that emphasize turns and bumps in the video. In addition, participants will be able to experience different vibrations depending on the orientation of their head.
HAPp1 - 5L Development of Vibration Cube to Convey Information by Haptic Stimuli
M. Azuma, T. Handa, T. Shimizu, S. Kondo (NHK, Japan )
  We have developed a vibration cube to intuitively convey various pieces of information contained in  videos such as ball direction and player  techniques in sports programs. The cube-shaped device of edge 53 mm that fits in the user’s hands and independently vibrates each face to present information. We thought that it was possible to convey direction and movements of three axes (xyz) by appropriately vibrating each face of the vibration cube. In a baseball program, the pitching course of a pitcher and direction of a ball hit by a batter can be transmitted intuitively by vibrating faces that represent the direction. Also, to allow free handling with both hands, vibration control is done wirelessly.In this study, we conducted experiments where the participants hold the vibration cube freely and determine which face was vibrating and found that this could be done sufficiently.