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Article type: Cover
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Published: October 19, 2000
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Article type: Index
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Published: October 19, 2000
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Aris Silzars
Article type: Article
Session ID: IDY2000-154
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Ji Guopin
Article type: Article
Session ID: IDY2000-155
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Chizuka Tani
Article type: Article
Session ID: IDY2000-156
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Myunghwan Oh
Article type: Article
Session ID: IDY2000-157
Published: October 19, 2000
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Eric G. Lean
Article type: Article
Session ID: IDY2000-158
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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LCD diplay technolgies including both TFT-LCD flat panel displays and projection displays have had many rapid advances for human machine interface applications and have become mutibillion dollar industry worldwide. In this talk, the status of LCD display technology advances and the rapid growth of LCD display manufacturing industry in Taiwan will be presented.
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Takuji Nakazono
Article type: Article
Session ID: IDY2000-159
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We have developed the 10.4-inch diagonal and UXGA resolution low-temperature poly-si TFT-LCD. To reduce the power consumption, the architecture of signal-line driver is constructed by 6 ICs connected glass substrate and by the integrated selector switches changing over 2 signal lines on glass. The LCD has realized high display performance with photograph-grade images.
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P W Cheng, K.C. Lee, C.K. Yip, H.L. Cheung, H C Huang, H.S. Kwok
Article type: Article
Session ID: IDY2000-160
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We have developed a highly integrated liquid-crystal-on-silicon microdisplay for virtual reality applications. The silicon panel of 704 × 576 spatial resolution was designed and fabricated by a custom 0.35μm CMOS technology. The pixel pitch was 9.6μm and the fill factor was 88%. A three-dimensional(3D) video stream in interlaced format was generated by a 3D modeling code for test and demonstration. A color sequential and control logic was implemented to obtain full color and extract video frames for the display. With two silicon microdisplays and eyepieces for each eye, we have demonstrated a 3D stereoscopic display.
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Minhua Lu, K.H. Yang
Article type: Article
Session ID: IDY2000-161
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Various nematic LC modes including band-shifted twisted film compensated twisted nematic mode for LCOS applications are reviewed. The effects of fringe-field-induced disclination on display performance and the mechanism of slow response of the disclination line between two topologically inequivalent LC states are presented.
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Setsuo Kaneko, Hiroshi Hayama
Article type: Article
Session ID: IDY2000-162
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Ultra-high-resolution TFT-LCDs have been developed. These LCDs have resolution of 177 ppi for iso-A4 document viewers and a ultra high resolution of 211 ppi based on color filter on TFT(COT) technology. Image quality for these LCDs is equivalent for printed text and photographs. Their technologies and evaluation will be described in this paper.
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S.C. Tan, J.Y. Lin, X.W. Sun, H.C. Huang, P.W. Cheng, H.S. Kwok
Article type: Article
Session ID: IDY2000-163
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A video interface controller has been developed for a XGA liquid-crystal-on-silicon reflective microdisplay system. The controller consists of a video digitizer, a logic interface and gamma correction references. The video digitizer converts the analog RGB signals to digital ones with three high speed ADCs. An internal phase-lock-loop recovers the timings for synchronization. The gamma correction references are generated with a DAC for fine-tuning of gray scales. The logic interface, implemented with an Altera complex programmable logic device for design flexibility and fast prototyping, configures the video digitizer and the DAC, and also delivers the video data and synchronization signals to the microdisplay. Based on the video interface controller, a XGA sequential color video microdisplay system was achieved with vivid images.
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Hsing-Yao Chen, Yu-Kun Ma, Jin-Lin Zhu, Shunlu Xiao, Hsiu Liu
Article type: Article
Session ID: IDY2000-164
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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This paper discusses a newly developed Low Aberration Projection(LAP) gun with a redesigned Beam Forming Region(BFR) to match the large diameter High-UPF gun Main Lens(ML). Under the reoptimization condition the 4mA spot size was further reduced from 0.25mm to 0.18mm. Computer modeling procedure and it results are given and some experimental result is discussed.
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Shoichi Wakita, Yasuo Tanaka, Shoij Shirai
Article type: Article
Session ID: IDY2000-165
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Screen spot size of the CRT for Projection Display is improved 17%, 14%, and 10% for beam current 0.5, 2.0, 6.0mA, respectively. This improvement is achieved mainly by the reduction of electrode dimensions in the electron beam forming region of the CRT electron gun. The reduction improves the aberration and increases the electron beam current density at the cathode surface. These result in decrease of the electron beam cross over size, and therefore the decrease of the screen spot size.
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Dong Young KIM, H.T. KIM, B.K. SONG, S.K. LEE, W.H. KIM
Article type: Article
Session ID: IDY2000-166
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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46-cm 100° Deflection angle RAC CDT(Color Display Tubes with Rectangular Type Deflection Yoke) has been developed for reducing the CDT depth by about 40mm. the Same focus performance has been obtained, compare to Conventional 90° deflection CDT, Using the iPLS-SL GUN(improved Powerful Lens System for Short -Length CDT) in addition, the required dynamic voltage is reduced by creating a new aberration mainlens system.
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Li Ping, Pu Jian
Article type: Article
Session ID: IDY2000-167
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A CAD software which can be used in the design of electron guns for CRT has been developed. A deformable-mesh finite difference method was adopted in 3D electrostatic field computation. In the simulation of near-cathode region, Weber-Nynomiya model was used. The initial transverse and longitudinal velocity of electron is concerned in this method. It's more strictly. Comparisons with the results of measurements for a 17" CDT show that the average aspect ratios of beam spot diameters agree within 25%, and the optimum focus voltages to within 50V.
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Zhong Xuefei, Yan Tu, Zhu Hao
Article type: Article
Session ID: IDY2000-168
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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The inverse design of electron lens is realized by artificial neural network method in this paper. The merits and defects are discussed according to our calculation results in this paper. In the condition of selecting the learning samples properly, the artificial neural network has obvious advantage in the inverse designing of electron lens. It is an effective method to solve the inverse designing problem in the electron optic system.
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Article type: Appendix
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75-
Published: October 19, 2000
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Tadashi Ichikawa, Kunio Yamada, Toshifumi Kanamaru, Takeshi Naemura, K ...
Article type: Article
Session ID: IDY2000-170
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Multimedia ambiance communication refers to a means of shared-space communication, that uses images captured by video and digital still cameras, combined with the laws of perspective, as used in painting, and the characteristics of human visual perception, to establish a photo-realistic quality three-dimensional image space. "Our goal is to create a more realistic shared-space by basing it on actual images rather than on accurate three-dimensional image spaces, such as those used in computer graphics. This paper addresses image processing and image representation for this photo-realistic quality three-dimensional image space.
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H C Huang, P.W. Cheng, H.S. Kwok
Article type: Article
Session ID: IDY2000-171
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We have developed a highly integrated liquid-crystal-on-silicon light valve for three-panel color projector. The silicon panel was designed and fabricated by a 0.35μm, 3-metal and dual-voltage CMOS process with a spatial resolution of 1280 × 1024 pixels. The pixel pitch was 12μm, the fill factor was 90% and the display area was 0.77" in diagonal. The silicon panel was assembled with a mixed twisted nematic and birefringence liquid crystal cell. Contrast ratio was typically 200:1 at 5.5Vrms. The optical sub-system utilized a trichroic prism assembly incorporating three silicon light valves for both color separation and recombination. A compact and high-contrast SXGA video projector was demonstrated.
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Kentaro Toyooka, Tetsuya Miyashita, Tatsuo Uchida
Article type: Article
Session ID: IDY2000-172
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Three-dimensional displays without using any special glasses such as parallax barrier method and lenticular method. However, high resolution is difficult to obtain by these methods because their resolution is limited by the pitch of the barrier or the lens. Then, we propose a new method to solve this problem. In this method, the light from a back light is controlled in the required direction, and different images are displayed according to each direction. An observer is provided with three-dimensional images by changing the light direction and parallax images on liquid crystal display(LCD) sequentially. The resolution of this display is the same as that of the used LCD and is not affected by the pitch of lenticular lens. In this presentation, the display principle, a design concept and property of the lighting system will be discussed.
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Shou-Qian Ding, Jin-yue Chen, Jin-liang Li
Article type: Article
Session ID: IDY2000-173
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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This paper describes the main reasons to hinder modern stereography from going to the market as the stereophonic did. On tracing the historical development of the stereography, we discovered that some old methods assisted by modern technology can realize stereo image with good performance to meet the current market requirements. Its definition and color are as good as color photos. Combined with the computer, we may watch clear and vivid 3D movies in home with less cost. We also discover the phenomenon of induced stereovision and stereovision remains, the former can be applied to extend the field of stereovision.
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Qiu Xingzhong
Article type: Article
Session ID: IDY2000-174
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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An improved single-chip digital micromirror device(DMD) projector is put forward in this report. The projector consists mainly of an ultraviolet(UV) metal halide(MH) lamp, a chip DMD, a projection lens and a luminescent projection screen. The projector has high brightness, good color purity, simple structure, lower cost and no misconvergence.
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P. Gautier, S. Araki, T. Oshima, P. Perkowski, T. Miyashita, T. Uchida
Article type: Article
Session ID: IDY2000-175
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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The comprehension of the mechanism of alignment of a liquid crystal by a rubbed polymer layer is a current interest from a fundamental point of view but also in regards to applications. To understand the mechanism of alignment it is necessary to clarify how the liquid crystal is oriented near a surface. A nematic liquid crystal(LC) has no longer a uniaxial symmetry near a rubbed polymer surface but exhibits a biaxial orientation. We probed the thickness dependence of the orientation of a LC using Fourier. Transform Infra-Red Spectroscopy. By this method it can be shown that the order parameter is lower near the surface than in the bulk.
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Shohei Naemura
Article type: Article
Session ID: IDY2000-176
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Liquid crystal displays are being more and more widely used for various applications. Those are wide viewing-angle active-matrix TN-, IPS-, and MVA-LCDs for PC monitor applications, and low operation-voltage active-matrix TN-LCDs for note-book PC and other mobile applications. Fast switching LCDs are also being intensively developed for field-sequential color display applications. LC materials are playing an essentially important role to actualize those modern displays, and novel classes of LC materials have been developed for each LCD. This paper reviews the physical properties of advanced LC materials, providing the high picture qualities of these modern displays in a variety of applications.
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Qingbing Wang, Zhenjun Ma, Xuan Li, Ximin Huang
Article type: Article
Session ID: IDY2000-177
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Polymer stabilized cholesteric texture(PSCT) materials for normal-mode operating were prepared by forming perpendicular polymer networks in cholesteric liquid crystals. The voltage-transmittance characteristics were investigated and the polymer networks were found to be able to control the hysteresis in cholesteric-nematic phase transition. We have developed a model and explained the effect of polymer on the hysteresis well. The effects of operating temperature, liquid crystal pitch and variation speed of applied voltage on hysteresis in PSCT normal-mode materials have also been investigated in this paper.
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Michael J. Eschuti, Pavel Kossyrev, Gregory P. Crawford
Article type: Article
Session ID: IDY2000-178
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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The Holographic-Polymer Dispersed Liquid Crystal(H-PDLC) mode exhibits superb color purity, strong peak reflection efficiency, and the ability to be used in the stacked pixel configuration. The primary weakness of the conventional H-PDLC configuration in the display application is the narrow viewing cone (〜2°) due to its operation as an electrically switchable Bragg reflector. The intent of this work is to present a method and model for increasing the viewing-angle of an H-PDLC display through the recording of a diffuse hologram. The reflection performance(viewing-angle and color) of this approach will be explored using a simple phenomenological model based on coupled-wave theory.
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A.K. Fontecchio, C.C. Bowley, S.M. Chmura, Le Li, S. Faris, G.P. Crawf ...
Article type: Article
Session ID: IDY2000-179
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We report optical multiplexing techniques in which multiple reflection gratings are created simultaneously within a single film using a one step exposure technique. Utilizing both a spatial multiplexing and time-sequential exposure, we are able to produce a spatially pixelated array of red, green, and blue 'pixels' within our sample, and thus enable the creation of a full-color display through spatial color synthesis techniques. We also report angular multiplexing techniques that enable multiple electrically switchable gratings to coexist in one film.
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Daien Lin, Jian Guan, Shunlu Xiao, Jinlin Zhu
Article type: Article
Session ID: IDY2000-180
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A novel projection tube with double electron beam has been developed. It has some superiorities: the luminance is nearly twice higher than conventional projection tube at same resolution, in other words, the resolution is much higher than conventional at same luminance, as well as, the damage of phosphor screen for over load could be reduced. All above are due to double electron beam hitting on each pixel two times during a scanning cycle. In this paper, new technologies are studied: the one is the electrostatic focus P-CRT with double beam adopting new approach for designing free astigmatism of electron optical system, and the other is applying digital delay circuit for the synchronization of two image signals which drive two electron beam respectively. The principle of the design with multi-beam P-CRT also could be suitable.
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H. Motousu, T. Inoue, S. Mikoshiba, S. Shirai, K. Oku, A. Tobe
Article type: Article
Session ID: IDY2000-181
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Complex and highly visible raster moire patterns of elliptical and hyperbolic types are generated when the scan line pitch and vertical aperture pitch becomes equal. The moire fringes appearing in high-resolution CRT monitors can be made less conspicuous by adjusting the scan line pitch and choosing the less visible fringe patterns.
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Tsuneo Kusunoki, Osamu Dobashi, Masaaki Kawamata, Katsutoshi Ohno
Article type: Article
Session ID: IDY2000-182
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We have developed a small grain, highly efficient phosphor called Microcrystal Phosphor(MCP) for fine-pitch CRTs. MCP has excellent coating characteristics and its introduction has improved the manufacturing productivity of CRTs.
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H.T. Chun, N.J. Koh, M.H. Oh, N.J. Park
Article type: Article
Session ID: IDY2000-183
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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In order to reduce the cost of materials, POS446M and STS430Ti, so-called POS430Ti alloys were investigated for the application in the Flatron rail instead of conventional 28wt%Cr alloy. It was found that magnetic properties of these materials do not affect beam landing characteristics of Flatron by proper heat treatment. In addition, Flatron manufacturing process using POS430Ti was also stabilized without glass crack by the application of the modified process conditions, which were optimized through the disign of experiment method.
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Yuhui Huang, Bingchu Du, Jianru Wang, Jiahe Si, Chen Zheng, Li Chaiyin ...
Article type: Article
Session ID: IDY2000-184
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A system for automating resolutions measurement on shadow-mask CRT displays has been developed. The system is based on the reconstruction of beam profile through shadow-mask. This system consists of a high-resolution CCD area sensor as measuring head, a PC and some peripheral equipment.
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Qionghua Wang, Jianbo Cheng
Article type: Article
Session ID: IDY2000-185
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A YAG(Yttrium Aluminum Garnet) phosphor screen is developed by depositig phosphor powder on a YAG faceplate using a centrifugal sedimentation techique. Because of the YAG characteristics of higher thermal conductivity than a conventional glass faceplate, the YAG phosphor screen obtains the performances of very high luminance, high resolution, good contrast ratio and long life, which realizes the large screen HDTV projection display. The 3-inch YAG phosphor screen's light spot diameter is 85 μ m at a cathode current of 0.5mA. The green, red and blue YAG phosphor screens reach the luminances of 1.4 × 10^5cd/m^2, 6.2×10^4cd/m^2 and 8.3×10^3cd/m^2 at a current of 1.0mA and an anode voltage of 29KV, respectively, with a lifetime of 9000 hours.
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K.H. Yang, Minhua LU
Article type: Article
Session ID: IDY2000-186
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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We review the compensation of NB and NW modes of TN LCDs. We have compared both cases and found that the compensation of a TN by a twisted discotic compensation film have unique advantages of lower operating voltage, a single film for both single- and two-domain TNs without the need of a black matrix to hide the disclination between two-domain TNs.
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Shin-Tson Wu, J.A. Hou, B.G. Wu
Article type: Article
Session ID: IDY2000-187
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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A high brightness and low operation voltage cholesteric display is demonstrated using high birefringence liquid crystal mixtures. As compared to the commercial liquid crystal, our new mixture improves the display brightness by a factor of two.
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Shushan Li, Baogang Wu, Jianmi Gao, Shane Laurent, Yongnam Kang, Jiana ...
Article type: Article
Session ID: IDY2000-188
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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Fast-response Multi-stable Liquid Crystal Display(FMLCD) is well suited for e-Book. FMLCD offers a paper-like high contrast static image without any flicker. It does not require any energy to maintain a display image, thereby significantly reducing power consumption. A single AAA battery can change up to 100K pages. We have developed a prototype of e-book by using FMLCD. The sunlight readable FMLCD shows high-resolution, wide-viewing angle, multi-gray scale memory of image without any parallax. Fast addressing speed is another unique feature of FMLCD. The principle of FMLCD and its latest development will be reported.
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T. Shiga, K. Kashimoto, Y. Baba, S. Mikoshiba, S. Takaku, S. Nishiyama
Article type: Article
Session ID: IDY2000-189
Published: October 19, 2000
Released on J-STAGE: June 23, 2017
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The drive frequency of the high-frequency electric-field-coupled lamp was raised from 5 MHz of the previous report to 13.56 MHz, which resulted in reduced drive voltage, lower electrode temperature, and weaker Ne visible emission. These evidences show decrease in energy loss at the cathode fall region and also increase in efficacy. By optimizing electrode configuration, luminance uniformity in the axial direction of 74.8 % was attained. Average luminance of a 390 mm-long lamp was 2750 cd/m^2 with a diffuser plate. Since the lamp uses external electrodes, the lamp is expected to have a long life. Also the lamp length can be extended arbitrary to cope with large LCD areas by attaching multiple number of electrodes.
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Article type: Appendix
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Published: October 19, 2000
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Article type: Cover
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