ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
26.25
Displaying 1-10 of 10 articles from this issue
  • Article type: Cover
    Pages Cover1-
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Article type: Index
    Pages Toc1-
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Kazuki NISHIMJRA, Hiroyuki FUJII, Yuji HAMADA, Tsuyoshi TSUJIOKA, Shig ...
    Article type: Article
    Session ID: IDY2002-60
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Conventional solution electrochemluminescent (SECL) cells have a low luminance. In this research, we propose an ion conductive assistant dopant (ICAD) system to improve the luminance of SECL cells. The solution of the cell consists of mixed solvent (o-dichlorobenzene/acetonitrile=2/1 (vol/vol)), rubrene used as the emitting material and 1,2-diphenoxyethane used as the ICAD. When voltage is applied to this SECL cell, the cell achieves a luminance of 183cd/m^2 and a luminous efficiency of 1.5cd/A at 8V with yellow emission. On the other hand, an SECL cell without an ICAD results in a low luminance of 0.3cd/m^2 at 8V, corresponding to a conventional SECL cell. The ICAD improves the luminance 600 times by enhancing the ion conduction of rubrene cations in the solution. Furthermore, when the mixed solvent (o-dichlorobenzene/toluene=2/1(vol/vol)), which has a high voltage resistance, is used in the SECL cell, the cell obtains a maximum luminance of 986 cd/m^2 at 80V. The features of the SECL cell are a simple cell structure and a transparent emitting area. SECL cells are expected to be used in unique displays with a see-through function.
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  • Taiki KOMODA, Yasuhiro ENDO, Koji KITA, Kentaro KYUNO, Akira TORIUMI
    Article type: Article
    Session ID: IDY2002-61
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    Pentacene thin films were grown by vacuum evaporation method. The structural properties of the films were characterized by X-ray diffraction and atomic force microscopy. Carrier transport characteristics of pentacene thin film transistors were investigated in terms of the field-dependent mobility. It was found in X-ray diffraction analysis that moderate thermal treatment significantly improved the film quality, but little modification was observed under the atomic force microscope and the electrical characteristics measurement. Thus, it can be concluded that it is of great importance to control the surface conditions and the early stage of film growth
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  • Masaya ADACHI, Makoto TSUMURA, Yasuo HIRA, Toshihiko ARIYOSHI, Yasuo F ...
    Article type: Article
    Session ID: IDY2002-62
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    A new rear projection screen which consists of a micro-lens array, a diffusion layer and a black matrix (BM) has been developed. The micro-lens array is fabricated on a transparent substrate. To achieve a wide viewing angle, a thin diffusion layer is formed on the other side of the transparent substrate. The micro-lens array is fabricated by using a nickel stamper for a fine lens pitch. As a BM material, we adopt a photo sensitive material for a self-aligned aperture of BM. These structures have realized remarkable wide viewing angle, extremely fine lens pitch and low ambient reflection.
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  • Takeshi MURASHIGE, Hideo FUJIKAKE, Seiichiro IKEHATA, Fumio SATO
    Article type: Article
    Session ID: IDY2002-63
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    We studied smectic layer structures of ferroelectric liquid crystal (FLC) formed in elongated small spaces surrounded by molecule-aligned polymer walls and rubbed polyimide alignment layers. The polymer walls, which are parallel to a rubbing direction and upright to the alignment layers, were formed by photopolymerization of aligned monomer under patterned ultraviolet-light irradiation. We observed the alignment textures of the FLC between the polymer walls with a polarizing microscope. As a result, as the interval between the polymer walls decreased, it was found that the smectic layer structure was changed from vertical-plane bending alignment (chevron structure) observed with a conventional surface-stabilized FLC into horizontal-plane bending. It is thought that the smectic layer structure deformation is decided by the competition of the anchoring effects of the alignment polyimide layers and the molecule-aligned polymer walls.
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  • Tomohiko OTOSE, Naoyasu IKEDA, Hiroshi HAGA, Hideki ASADA, Hiroshi HAY ...
    Article type: Article
    Session ID: IDY2002-64
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    We have developed a 230ppi poly-Si TFT reflective LCD for mobile applications, which can display a full CIF(Common Intermediate Format) image and a large amount of character and graphic-information simultaneously. It has 360×480 pixels for the 2.6-inch display size. A new partial-display driving scheme achieves a low power consumption of 1.7mW at a frame frequency of 30Hz. The LCD will be suitable for next-generation mobile phones.
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  • Toshiaki KUSUNOKI, Masakazu SAGAWA, Mutsumi SUZUKI, Kazutaka TSUJI
    Article type: Article
    Session ID: IDY2002-65
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
    An MIM (Metal-Insulator-Metal) cathode flat panel display, which is an emissive flat panel display has several advantages: low driving voltage, robustness against surface contamination, highly directional electron beam, and excellent spatial uniformity. This report describes the recent progress of our development: cathode structure, process, transfer ratio, emission current density heat tolerance, and prototype of the MIM cathode display.
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  • Article type: Appendix
    Pages App1-
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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  • Article type: Appendix
    Pages App2-
    Published: March 07, 2002
    Released on J-STAGE: June 23, 2017
    CONFERENCE PROCEEDINGS FREE ACCESS
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