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Display Technology, Journal of

Issue 4 • Date Dec. 2007

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Displaying Results 1 - 20 of 20
  • [Front cover]

    Page(s): C1
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    Freely Available from IEEE
  • Journal of Display Technology publication information

    Page(s): C2
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    Freely Available from IEEE
  • Table of contents

    Page(s): 337 - 338
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    Freely Available from IEEE
  • Scanning the issue - Special Issue on LCD TVs

    Page(s): 339 - 341
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    Freely Available from IEEE
  • Revolution of the TFT LCD Technology

    Page(s): 342 - 350
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1733 KB) |  | HTML iconHTML  

    The introduction of flat panel displays that are fabricated with thin-film-transistor liquid-crystal displays (TFT LCDs) has changed human's lifestyle very significantly. Traditionally, the revolution of the TFT LCD technology has been presented by the timeline of product introduction. Namely, it first started with audio/video (AV) and notebook applications in the early 1990s, and then began to replace cathode-ray tubes (CRTs) for monitor and TV applications. Certainly, TFT LCDs will continue to expand in all areas of our daily life in the future. Here a new concept of the revolution of the TFT LCD technology is presented for the major TFT LCD makers. In this new concept, there are four waves of technology revolution with the following themes, respectively: 1) product introduction; 2) performance enrichment; 3) power and material utilization; and 4) functions for human interface. The role of the LCD-TV in the revolution is also discussed. View full abstract»

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  • The World of Liquid-Crystal Display TVs—Past, Present, and Future

    Page(s): 351 - 360
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1083 KB) |  | HTML iconHTML  

    The full-fledge development for liquid-crystal display (LCD) technologies began aiming to achieve a ldquowall-mounting TVrdquo in the 1960 s. Since then, it has been more than 30 years from the birth of LCD product, the market of LCDs has grown above 10 billion dollars, and in the future, it is expected to further expand at a fast pace. The driving force in the current marketplace will be the original goal, ldquoLCD TVs,rdquo which contribute to drastically improving display performance of LCD and the evolution of LCDs. This paper, therefore, will focus on the LCD-TVs, and describe their history, the state-of-the-art of the technologies, as well as the prospect of their potential in the future. View full abstract»

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  • In-Plane Switching Technology for Liquid Crystal Display Television

    Page(s): 361 - 370
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1594 KB) |  | HTML iconHTML  

    In-plane switching (IPS) technology used for liquid crystal display (LCD) TV is reviewed. Requirements of HD TV application are listed, and the main performances are compared among various competing display technologies. IPS LCD mode shows superior performances, satisfying the requirement for HD TV application. View full abstract»

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  • Recent Picture Quality Enhancement Technology Based on Human Visual Perception in LCD TVs

    Page(s): 371 - 376
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (989 KB)  

    Picture quality enhancement technologies applied by human vision system (HVS) were introduced. A smooth eye pursuit mechanism was applied to moving picture quality enhancement. The fast frame-rate and impulsive-like driving methods were reviewed. A new analysis method of a color reproduction capability of TVs was introduced and had its importance pointed out. Luminance-related issues in liquid crystal display (LCD) TVs were reviewed, such as eye fatigue by high luminance and maximum perceptible contrast ratio of the display. View full abstract»

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  • Mixed Color Sequential Technique for Reducing Color Breakup and Motion Blur Effects

    Page(s): 377 - 385
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1420 KB) |  | HTML iconHTML  

    This paper proposes a mixed color sequential (MCS) algorithm with high contrast enhancement technique in RGB light-emitting diode (LED) backlight display. Owing to synchronous control of liquid crystal display (LCD) and LED panels, high quality image with suppressed color breakup (CBU) and motion blur effects is achieved by our novel color sequential technique. Importantly, MCS algorithm is useful for color filter-less optical compensated bend (OCB) panel display for alleviating CBU and motion blur effects. Furthermore, high contrast image is also presented on LCD panel because of mixed red-green-blue (RGB) and cyan-magenta-yellow (CMY) backlights with optimum power consumption. In other words, MCS algorithm with high contrast enhancement technique can have the better performance compared with other field sequential color techniques. Experimental results demonstrate by an actual RGB backlight module for 32-in 1366*768 LCD panel the improvement of CBU and motion blur effects. View full abstract»

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  • The Latest Plasma-Enhanced Chemical-Vapor Deposition Technology for Large-Size Processing

    Page(s): 386 - 391
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (795 KB) |  | HTML iconHTML  

    The thin-film transistor liquid crystal display (TFT-LCD) industry has in recent years demanded ever-larger- area substrate processing capability to keep up with consumer market demands for larger and larger displays. This paper discusses the latest plasma-enhanced chemical-vapor deposition (PECVD) system, the AKT 50 K PECVD, which handles up to 2160 x 2460 mm2 substrates. As substrate size increases, lowering the processing temperature is getting even more important to improve production reliability and cost performance. The most commonly used process temperature for the so-called active layers of amorphous silicon (a-Si) TFTs is approximately 350 degC. In this paper, a newly developed single-chamber low-temperature PECVD active-layers process is discussed. In particular, our low-temperature process maintains film performance at the same level as high-temperature active layers while also maintaining system productivity and throughput. View full abstract»

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  • Electromagnetic Design Techniques for Liquid Crystal Display Driver ICs

    Page(s): 392 - 397
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (635 KB) |  | HTML iconHTML  

    A simple method of verifying electromagnetic interference (EMI) reduction effects for liquid crystal display (LCD) driver integrated circuits (ICs) is proposed. In this paper, we discuss correlations between radiated emissions and high-frequency currents of power system at three different levels: print circuit board (PCB) level, chip level, and functional circuit level. The EMI design points for LCD driver ICs are presented too. Simulated and measured results prove that our EMI design effectively reduces LCD EMI noise. View full abstract»

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  • A New Pixel Circuit Compensating for Brightness Variation in Large Size and High Resolution AMOLED Displays

    Page(s): 398 - 403
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (865 KB) |  | HTML iconHTML  

    A new pixel design and driving method for active-matrix organic light-emitting diode (AMOLED) display using low-temperature polycrystalline silicon thin-film transistor (LTPS-TFT) is proposed. The new circuit consists of five TFTs and one capacitor to eliminate the variation in the threshold voltage of the TFTs, and the drop in the supply voltage in a single frame operation. The proposed pixel circuit has been verified to realize uniform output current by the simulation work using HSPICE software. The simulated error rate of the output current is also discussed in this paper. The novel pixel design has great potential for use in large size and high resolution AMOLED displays. View full abstract»

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  • Recent Trends on Patterned Vertical Alignment (PVA) and Fringe-Field Switching (FFS) Liquid Crystal Displays for Liquid Crystal Television Applications

    Page(s): 404 - 412
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1729 KB) |  | HTML iconHTML  

    This paper reviews the recent trends on super-patterned vertical alignment (S-PVA) and fringe-field switching (FFS) technologies for liquid crystal display (LCD)-television (TV) applications. For PVA mode, Samsung originally announced S-PVA technology in 2004 to enhance off-axis viewing quality of conventional PVA mode. S-PVA is a new technology which enables screen quality advantages over super-in plane switching (S-IPS) and multi-domain VA (MVA), including high transmittance, >2300:1 contrast ratio, and wide viewing angle with no off-axis image inversion. This paper explores and updates Samsung's latest developments toward its goal of ultimate LCD-TV performance. For FFS mode, the technology appeared in 1998 by HYDIS and now it has been commercialized in all kinds of display applications, implying its technical importance. This paper reviews recent developments and performance of LCD-TV using the FFS mode based on published papers and our knowledge. View full abstract»

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  • Line-by-Line Addressing of RMS Responding Matrix Displays With Wavelets

    Page(s): 413 - 420
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (512 KB) |  | HTML iconHTML  

    A line-by-line addressing technique that is based on wavelets is proposed to obtain gray shades in root-mean-square responding matrix displays. A large number of gray shades can be displayed with a smaller number of voltages (simple drivers) as compared with amplitude modulation and a smaller number of time intervals as compared with the frame modulation. The technique is demonstrated by displaying 128 gray shades in a liquid crystal display. View full abstract»

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  • Increase of Virtual Image Area by Reflection of Mirrors

    Page(s): 421 - 425
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (571 KB) |  | HTML iconHTML  

    We propose a new display feature in which the viewing area of a virtual image is larger than the real size of the electronic display by the combination of an original electronic image and reflected images. By controlling the angular light distribution of each pixel, reflected images are made to look different from a direct-view image. Conditions are analyzed by which reflected images and a direct-view image are perceived as one image by the user. Both twofold and fourfold enlargements of the image are experimentally observed at the proposed system using liquid crystal display and mirrors standing by its side. View full abstract»

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  • A Statistical Model for Simulating the Effect of LTPS TFT Device Variation for SOP Applications

    Page(s): 426 - 433
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1481 KB) |  | HTML iconHTML  

    In this paper, the variation characteristics of low-temperature polycrystalline silicon (LTPS) thin-film transistors (TFTs) are investigated with a statistical approach. A special layout is proposed to investigate the device variation with respect to various devices distances. Two non-Gaussian equations are proposed to fit the device parameter distributions, whose the coefficients of determination (R2) are both near 0.9, reflecting the validity of the model. Two benchmark circuits are used to compare the difference between the proposed model and the conventional Gaussian distribution for the device parameter distribution. The output behaviors of the digital and analog circuits show that the variation in the short range would greatly affect the performance of the analog circuits and would instead be averaged in the digital circuits. View full abstract»

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  • Special issue of the IEEE/OSA Journal of Display Technology on medical displays

    Page(s): 434
    Save to Project icon | Request Permissions | PDF file iconPDF (631 KB)  
    Freely Available from IEEE
  • 2007 Index Journal of Display Technology Vol. 3

    Page(s): 435 - 444
    Save to Project icon | Request Permissions | PDF file iconPDF (117 KB)  
    Freely Available from IEEE
  • Journal of Display Technology Information for authors

    Page(s): C3
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    Freely Available from IEEE
  • Blank page [back cover]

    Page(s): C4
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    Freely Available from IEEE

Aims & Scope

This publication covers the theory, design, fabrication, manufacturing and application of information displays and aspects of display technology.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Arokia Nathan
University of Cambridge
Cambridge, U.K.