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Electronic paper display technology

Electronic paper display technology

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作者： Zhao, Kun Li, Chunya Zhang, Jianhua Key Laboratory of Advanced Display and System Applications Shanghai University Ministry of Education No. 149 Yanchang Rd Shanghai 200072 China School of Mechatronics Engineering and Automation Shanghai University No. 149 Yanchang Rd. Shanghai 200072 China

ISBN: (纸本)9787561752289

In recent years, flat panel display technology is becoming mature day by day. With the development of a huge rapid-growing display market, an increasing number of companies and research institutes focus on the flexible display technology, which is called paper-like display technology. The main point in flexible display technology is electronic paper display technology, which involves three main display types: microcapsules electrophoresis, gyricon bead, cholesteric texture. This paper not only introduces the initiation and development of electronic paper display technology, but also gives detailed descriptions of the principles, applications and main companies for the three electronic paper display types. When the display elements were prepared, the driver circuit must be assembled with the display module. There will be some problems should be solved by electronic packaging technology, such as chip on flex (COF) technology. Furthermore, the assembling process to make driver elements integrated with display components was illustrated. There are three realization directions to realize electronic paper display, including display-based technology, printing technology, photocopy technology. At last, electronic paper display products were shown to indicate the developing technology and splendid future.

关键词： Electrophoresis

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New interconnection technology for flat panel display applications

New interconnection technology for flat panel display applic...

引用

作者： Yuan, Fang Zhang, Jianhua Key Laboratory of Advanced Display and System Applications Shanghai University Ministry of Education No. 149 Yanchang Rd. Shanghai 200072 China School of Mechatronics Engineering and Automation Shanghai University No. 149 Yanchang Rd. Shanghai 200072 China

ISBN: (纸本)9787561752289

As electronic packaging technology trends in the small flat panel display move toward faster, more cost-effective, higher electrical performance and better reliability, flip chip technology gains popularity as one of the best chip packaging candidates. This technology has offered numerous advantages over conventional solder joining and the assembly uses polymer adhesives such as isotropic conductive adhesives (ICAs), anisotropic conductive films (ACFs) and nonconductive adhesives(NCAs). ICAs and AC As contain conductive particles and adhesive polymer resins and have been widely used for the flat panel display module. However, as the consumer electronics tends to become ligher, thinner, and also featured in high resolution and low power consumption to satisfy the increasing market requirements, it is propelling to improve the approaches to a flip chip adhesive process. The paper mainly presents the study of Non-conductive adhesives in flip chip for plat panel display. The NCAs technology is emerging as an attractive lead-free solder interconnects due to its environmental friendliness, lower processing temperatures, lower cost and extendability to fine pitch application. In fine pitch application below 30 μm, decreasing the pad pitch could increase the risk of short circuit to the ICA joints and lead to a reduction in current-carrying capacity of the AC A interconnetions. But the technology using NCAs in flip chip can solve the problems very well. This paper will review the latest research in NCA interconnection technology for flat panel display applications. Meanwhile, the new methods of NCA interconnection for very fine pitch LCD driver is also proposed and verified.

关键词： Cost effectiveness

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Teleoperation of a Multi-Purpose Robot over the Internet Using Augmented Reality

Teleoperation of a Multi-Purpose Robot over the Internet Usi...

引用

2007 International Conference on Control, Automation and systems (ICCAS 2007), vol.3

作者： Hyeshin Park Yo-An Lim Aslam Pervez Beom-Chan Lee Sang-Goog Lee Jeha Ryu Department of Mechatronics Gwangju Institute of Science and Technology Gwangju South Korea Department of Multimedia System Engineering Catholic University Seoul South Korea

Bilateral teleoperation using augmented reality is proposed for a multi-purpose robot called SpiderBot-II that is an indoor-installed wire-driven parallel manipulator. It is intended to be used for various applications, including in-house rehabilitation training and daily life assistance such as walking assistance and health monitoring, especially for the elderly or the handicapped that spends most of time at home. Through the teleoperation over the Internet, a therapist or an attendant in a remote site can give help to the physically disabled by directly manipulating the robot. For easy recognition of the obstacle, predefined markers are attached to each obstacle in the workspace. For better teleoperation, moreover, reaction force between obstacles and the end-effector, which is calculated using force field, is given to a remote operator and this enables the operator to perform the teleoperation more effectively. Force field, which is proportional to proximity between obstacles and the end-effector, is generated to facilitate the obstacle avoidance and visually augmented on the operator's screen for better recognition of obstacles.

关键词： Teleoperation Wire-driven Parallel Mechanism Augmented Reality Walking Assistance Haptic Feedback

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Development of ambulatory ECG monitoring device with ST shape classification

Development of ambulatory ECG monitoring device with ST shap...

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International Conference on Control, Automation and systems ( ICCAS)

作者： Gu-Young Jeong Kee-Ho Yu Division of Mechatronics Engineering Chonbuk National University of Korea Jeonju South Korea Division of Mechanical and Aerospace System Engineering Chonbuk National University of Korea Jeonju South Korea

In this paper, we describe the hardware configuration for ambulatory ECG monitoring device and the algorithm for detection of ST shape change. Ambulatory ECG recordings are available for diagnosis of heart diseases such as myocardial infarction, arrhythmia, etc. It especially is important to detect the transient ECG pattern changes. The detection of transient ST change caused by myocardial ischemia is one of the reasons why ambulatory ECG monitoring system is necessary. We designed a small-size portable ECG device that consisted of instrumentation amplifier, multiplexer, micro-controller, filter and transmitter module. The device measures ECG with four electrodes in the body and transmits the signal to receiver connected in PC by digital radio way. The developed algorithm detects the ST level change, and then classifies the ST shape type using the polynomial approximation. The algorithm finds the least squares curve for the data between S wave and T wave in ECG. This curve is used for the classification of the ST shapes. ST type is classified by comparing the slopes between the reference ST type and the least square curve. Through the result from the developed algorithm, we can know when the ST level change occurs and what the ST shape type is. And, the result of analysis is used to make control signal that decides when ECG recording begin and when stop.

关键词： Electrocardiography Monitoring Shape Change detection algorithms Myocardium Least squares methods Hardware Cardiac disease Ischemic pain Instruments

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Morphological Classification of ST segment using Reference STs Set

Morphological Classification of ST segment using Reference S...

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Gu-Young Jeong Kee-Ho Yu Division of Mechatronics Engineering Chonbuk National University of Korea Jeonju Jeonbuk South Korea Division of Mechanical and AeroSpace System Engineering Chonbuk National University of Korea Jeonju Jeonbuk South Korea

Morphological change of ECG is the important diagnostic parameter to finding the malfunction of a heart. An abnormal ST segment change especially is a very important for finding myocardial ischemia. Long-term ECG recording is needed because an ST change is transient. Accordingly, physicians try to find the transient change of the ST segment. The aim of this study is to classify ST according to its shape type using a polynomial approximation method and the reference STs set. The developed algorithm consists of feature point detection, ST level detection and ST shape classification. The first step of feature point detection is the detection of QRS complex, and this is accomplished using the morphological characteristics of QRS complex such as the steep slope and high amplitude. The other feature points are also detected using their morphological characteristics. The developed algorithm detects the ST level change, and then classifies the ST shape type using the polynomial approximation. The algorithm finds the least squares curve for the data between S wave and T wave in ECG. This curve is used for the classification of the ST shapes. ST type is classified by comparing the slopes between the reference ST type and the least square curve. We applied the developed algorithm to the ECG data in European ST database. Through the result from the developed algorithm, we can know when the ST level change occurs and what the ST shape type is.

关键词： Sociotechnical systems Shape Electrocardiography Change detection algorithms Polynomials Computer vision Least squares methods Heart Myocardium Ischemic pain

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Nanoscopic Characterization of Textured Substrate For Thin Film Solar Cells

Nanoscopic Characterization of Textured Substrate For Thin F...

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第五届国际材料与热加工物理模拟及数值模拟学术会议

作者： R. Muhida AGE Sutjipto T. Toyama H. Okamoto Department of Mechatronics Engineering Department of Manufacturing and Materials Engineering Faculty of Engineering International Islamic University Malaysia Jalan Gombak 53100 Kuala Lumpur Malaysia Department of System Innovation Graduate School of Engineering Science Osaka University Toyonaka Osaka 560-8531 Japan

This paper presents a nanoscopic characterization of a series of textured substrate for poly-Si thin film solar cells application performed by Atomic Force Microscopy (AFM), in order to find the optimum texture substrate and realize the light trapping. The relationship between average slopes (Tan θ) and photovoltaics performance are studied based on the experimental results. The textured ZnO/Ag/SnO2/glass with Tan θ of 0.08 yields the maximum conversion efficiency for Jsc and Voc. Although the poly-Si deposited on highly textured substrate (σ>37 nm) shows excellence the light trapping properties, it tend to deteriorate the poly-Si (220) preferential growth and exhibits n-type character, yielding poor photovoltaic performances. In addition, changing optical reflectance and microstructure due to textured substrates are also discussed.

关键词： AFM ZnO SnO Nanoscopic Characterization of Textured Substrate For Thin Film Solar Cells

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Evolutionary robot vision and particle swarm optimization for Multiple human heads tracking of a partner robot

Evolutionary robot vision and particle swarm optimization fo...

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Congress on Evolutionary Computation

作者： Indra Adji Sulistijono Naoyuki Kubota The Department of Mechatronics Electronic Engineering Polytechnic Institute of Surabaya (EEPIS-ITS) Surabaya Indonesia The Department of Mechanical Engineering Graduate School of Engineering Tokyo Metropolitan University Hino Tokyo Japan The Department of System Design Tokyo Metropolitan University Hino Tokyo Japan

This paper discusses the advantage and disadvantage of evolutionary robot vision and particle swarm optimization for multiple human heads tracking. Evolutionary robot vision combines the technologies of the evolutionary computation and robot vision. Both of evolutionary computation and particle swarm optimization can perform the multiple human heads tracking well for feasible solution in a dynamic movement. This paper compares their performance. Finally, the proposed method is applied to a partner robot, and we discuss the effectiveness of the multiple human heads tracking in the natural communication with humans.

关键词： Robot vision systems Particle swarm optimization Particle tracking Head Evolutionary computation Human robot interaction Color Visual perception Face detection Image processing

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A new topology for photovoltaic 4 series dc/dc converter with high efficiency under wide load range

A new topology for photovoltaic 4 series dc/dc converter wit...

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International Conference on Power Electronics (ICPE)

作者： Jong Pil Lee Byung Duk Min Jeong Joong Kim Kang Yul Ryul Tae Jin Kim Dong Wook Yoo Eui Ho Song Ji Yoon Yoo Power Conversion & System for RES Group Korea Electrotechnology Research Institute Changwon South Korea School of Mechatronics Control & Instrumentation Engineering Changwon NatE28099l University South Korea School of Electrical Engineering Korea University South Korea

The paper proposes a new topology for photovoltaic DC/DC converter with high efficiency under wide input voltage range is proposed. Photovoltaic DC/DC is a very crucial part of power conditioning system (PCS). Considering that output characteristic of photovoltaic cell has wide voltage range, depending on the operating conditions of photovoltaic cell, the DC/DC converter also needs to have wide input voltage range to regulate the constant output voltage. In addition, a high rated voltage of power switch (MOSFET) for DC/DC converter is necessary in order to be compatible with the high maximum output voltage of photovoltaic cellpsilas maximum output voltage. Also photovoltaic power conditioning system should have a high efficiency under operation condition. To satisfy PV PCS condition series connected non-isolated DC/DC converter topology is proposed. This paper examines the proposed topology employing four modules and shows that it dramatically enhances the energy efficiency from low load to high load condition by reducing the required power level for DC/DC converter by one-third of conventional DC/DC converter. A case of 25 kW prototype as the PV DC/DC converter is introduced to experimentally verify the proposed topology.

关键词： Topology Photovoltaic systems Solar power generation DC-DC power converters Voltage Power conditioning Personal communication networks Photovoltaic cells MOSFET circuits Power MOSFET

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Particle swarm intelligence robot vision for multiple human tracking of a partner robot

Particle swarm intelligence robot vision for multiple human ...

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SICE Annual Conference

作者： Indra Adji Sulistijono Naoyuki Kubota Department of Mechatronics Electronics Engineering Polytechnic Institute of Surabaya Kampus ITS Sukolilo Surabaya Indonesia Department of Mechanical Engineering Graduate School of Engineering Tokyo Metropolitan University Hino Tokyo Japan SORST Japan Science and Technology Corporation Japan Department of System Design Tokyo Metropolitan University Hino Tokyo Japan

ISBN: (纸本)4907764278

This paper discusses the advantage and disadvantage of particle swarm intelligence robot vision for multiple human heads tracking. The particle swarm intelligence robot vision combines the technologies of the swarm intelligence computation and robot vision. Particle swarm optimization can perform the multiple human heads tracking well for feasible solution in a dynamic movement. This paper shows the performance. Finally, the proposed method is applied to a partner robot, and we discuss the effectiveness of the multiple human heads tracking in the natural communication with humans.

关键词： Intelligent robots Particle swarm optimization Robot vision systems Humans Particle tracking Head Face detection Computational efficiency Robotics and automation Visual perception

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A Study on the Improved Localization of a Mobile Robot by using Scale Invariant Feature and Odometry

A Study on the Improved Localization of a Mobile Robot by us...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Chul-Woong Jang Ki-Ho Jung Dae-Seop Jung Je-Goon Ryu Jung-Shik Kong Jae-Hong Shim Eung-Hyuk Lee Department of Electronic Engineering Korea Polytechnic University Gyeonggi South Korea Department of Mechatronics Engineering Korea Polytechnic University Gyeonggi South Korea Graduate school of Information Production & System Waseda University Tokyo Japan Department of Micro Robot Daeduk College Daejeon South Korea

One of the important factors of the autonomous mobile robot is to build a map for surround environment and estimate its localization. This paper deals with the method to improve localization result by using scale invariant feature with single camera. In detail, the mobile robot attaches monocular camera looking wall extracts scale invariant features in each image by using SIFT (scale invariant feature transform). And then, map building is carried out by the extracted features and stores it map database. After finishing feature map building, the robot finds some points matched with previous feature map and its pose by affine parameter in real time. Localization by using SIFT is accurate relatively, but it sometimes loses its pose because of the change of the lights. To compensate the following problem, we apply the compensation method that uses the odometry information of the mobile robot. We verify the improved localization performance of the mobile robot from the experiments.

关键词： Mobile robots Simultaneous localization and mapping Robot vision systems Cameras Lattices Embedded system Human robot interaction Educational institutions Feature extraction Principal component analysis

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