ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
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25.40
Displaying 1-11 of 11 articles from this issue
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  • [title in Japanese]
    Article type: Cover
    Pages Cover1-
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_Cover1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • [title in Japanese]
    Article type: Index
    Pages Toc1-
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_Toc1
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Research on Free-Electron Laser at institute of FEL Osaka-University
    Makoto ASAKAWA
    Article type: Article
    Session ID: IPU2001-38/IDY2001-9
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_1
    CONFERENCE PROCEEDINGS FREE ACCESS
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    At Institute of Free-Electron Laser, Osaka University, two projects on the light source are now under way. (1)An 100 MW Infrared FEL driven by an 180 MeV RF-linac:The wavelength ranges from 10 to 100μm by changing the wiggler field. (2)γ-ray generation via Compton backscattering:Strong laser or 1.1 eV photon energy is scattered by an 180 MeV electron beam to generate the scattered photon of 500 keV.
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  • X-Ray Imaging Diagnostics with High-Spatial and Temporal Resolutions Applied to Dynamics of Laser-Irradiated High-Energy-Density Plasmas
    H. Shiraga, S. Fujioka, Y. Tamari, T. Sakaiya, M. Nishikino, K. Shigem ...
    Article type: Article
    Session ID: IPU2001-39/IDY2001-9
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_7
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Imaging diagnostics of laser-produced high-energy-density plasmas with high sparial and temporal resolutions have been developed, including 1-dimensionan penumbral imaging, 1-dimensional slit imaging with high-magnification, and 2-dimensional Fresnel zone plate imaging. Moire interferrometry imaging of repetitive signal has been also developed. Dynamics and densily profiles were measured by using these imaging diagnostics.
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  • Overdrive Method for Reducing Response Time of LCDs
    Kazuo Sekiya, Hajime Nakamura
    Article type: Article
    Session ID: IPU2001-40/IDY2001-9
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_13
    CONFERENCE PROCEEDINGS FREE ACCESS
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    In order to improve the quality of moving images on Liquid Crystal Displays, reduction of their response time is highly desired. "Overdrive method" that reduces the response time by changing the driving voltages at normal refresh timings is described here. At first, problems related to conventional "response time with relative precision at 90%" and insufficiency of "charge compensational overdrive" that simply cancels cumulative response and problems on methods using brightness tables are explained. Then based on analysis of the transient behavior of TN-mode liquid crystal, a configuration of recursive system with capacitance prediction is introduced as the appropriate overdrive circuit.
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  • Non-Destructive High-Speed Image Sensors and Their Applications
    Dwi HANDOKO, Shoji KAWAHITO
    Article type: Article
    Session ID: IPU2001-41/IDY2001-9
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_19
    CONFERENCE PROCEEDINGS FREE ACCESS
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    This paper describes a non-destructive high-speed image sensor and tis application to an on sensor motion vector estimation. The non-destructive high-specd sensor captures high-specd intermedicte pictures and fully accumulated video-rate pictures. The operation of the non-destructive high-spced image sensor is confirmed by expcriments on the prototype of the sensor. The proposed on-sensor motion vector estimation is using high-speed pcitures. It greatly reduces the computational complexity of conventional motoin vector estimation. For ±30 search range in video-rate pictures, the computational complexity can be reduced by a factor of 1/13. Although the proposed method uses high-speed pictures, the power reduction in the overall morion estimation system can be achieved.
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  • The Technology of p-Si TFT-LCD for Mobile Phone : Development of A 2.15 Inch reflective color TFT-LCD for Mobile Phone
    Takanori Tsunashima
    Article type: Article
    Session ID: IPU2001-42/IDY2001-1
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_25
    CONFERENCE PROCEEDINGS FREE ACCESS
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    We have developed a 2.15 inch diagonal, reflective color low temperature polysilicon(poly-Si)Thin Film transistor liquid crystal Display(TFT-LCD)suitable for Mobile phone. This panel integrated a new 4bit Digital to Analog Convertor(4bit-DAC)and a new technology called DMOG(digital memory on glass). This panel is able to display 4bit x RGB(4096-colors)images(normal mode)and 1bit x RGB (8-colors)still image in power save mode(still mode). We have achieved low cost and low power consumption up to 1.3mW in still mode.
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  • Exciton emission properties of epitaxial ZnO thin films grown on Si substrate
    A. Miyake, H. Kominami, T. Aoki, N. Azuma, Y. Nakanishi, Y. Hatanaka
    Article type: Article
    Session ID: IPU2001-43/IDY2001-1
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_31
    CONFERENCE PROCEEDINGS FREE ACCESS
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    ZnO epitaxial thin film could be growth on Si(111)substrate by oxidation of ZnS epitaxial thin film grown on the substrate by electron beam evaporation technique. Near ultraviolet emissions due to exciton emissions of ZnO were also obtained. Growth conditions to obtain the strong ultraviolet emission from the film were investigated. The best emission properties were obtain when the ZnS epitaxial film was grown on Si substrate at a substrate temperature of 270℃ and the film was annealed at 720℃ in O2 flow for at least 2 hours.
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  • RGB-Stacked Holographic PDLC Devices
    Goroh Saitoh, Ken Sumiyoshi, Hiroshi Hayama
    Article type: Article
    Session ID: IPU2001-44/IDY2001-1
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_37
    CONFERENCE PROCEEDINGS FREE ACCESS
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    The reflective color LCD based on a holographic polymer dispersed liquid crystal(HPDLC)is one of the brightest types of LCDs. This is because it does not require the use of a polarizer or a color filter. To expand the viewing angle of HPDLC device, we developed a lens interference irradiation method. Single HPDLC devices with wide viewing angle(> 15°)were assembled on thin glass substrates(0.1mm thick)to depress the parallax. An RGB-stacked HPDLC device with 2-inch diagonal was assembled. The stacked HPDLC device had a reflectance ratio of 95%(BaSo4:100%), and contrast ratio of 53.
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  • Directive Reflection Color Display Device
    Yoshiyuki Higashigaki, Ken-ichi Iwauchi
    Article type: Article
    Session ID: IPU2001-45/IDY2001-1
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_43
    CONFERENCE PROCEEDINGS FREE ACCESS
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    Directive color reflection was introduced to implement a reflective LCD with display qualities of brightness higher than 60%, contrast larger than 15, and the color gamut as wide as those of transmissive color LCSs. The LCD cell using a directive reflection film and a single polarizer film was fabricated and evaluated to show that these target values were satisfied in 8-color-bar display. There were little color sifts within a directive angle, although interference was employed to display color.
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  • [title in Japanese]
    Article type: Appendix
    Pages App1-
    Published: June 21, 2001
    Released on J-STAGE: June 23, 2017
    DOIhttps://doi.org/10.11485/itetr.25.40.0_App1
    CONFERENCE PROCEEDINGS FREE ACCESS
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