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Display Technology, Journal of

Issue 10 • Date Oct. 2011

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Displaying Results 1 - 14 of 14
  • [Front cover]

    Publication Year: 2011 , Page(s): C1
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  • Journal of Display Technology publication information

    Publication Year: 2011 , Page(s): C2
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  • Table of contents

    Publication Year: 2011 , Page(s): 533
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  • Blank page

    Publication Year: 2011 , Page(s): 534
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  • Guest Editorial

    Publication Year: 2011 , Page(s): 535 - 536
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  • Quality Enhancement for Scalable View Window in Touchable Display Systems

    Publication Year: 2011 , Page(s): 537 - 543
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1446 KB) |  | HTML iconHTML  

    This paper presents a quality enhancement method to efficiently enhance the resolution of the scalable view window on touchable displays. Based on an optimized image interpolation algorithm, the image quality on the display systems can be enhanced . The image interpolation algorithm combines a 6-tap interpolation filter and a bilinear filter which can be effectively and efficiently optimized to reduce computational complexity. In addition, the cost-effective hardware architecture of the algorithm is also designed and implemented on an FPGA platform with a touchable display. The experimental results demonstrate the feasibility of the proposed method. View full abstract»

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  • Multi-Histogram-Based Backlight Dimming for Low Power Liquid Crystal Displays

    Publication Year: 2011 , Page(s): 544 - 549
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (801 KB) |  | HTML iconHTML  

    This paper presents a new method for dynamic backlight dimming that uses multiple histograms for liquid crystal display (LCD) devices. The proposed multi-histogram-based gray-level error control (MGEC) algorithm considers the pixel distribution of an image using multiple histograms, thereby improving the image quality. Additionally, we propose several techniques to reduce the computational cost of the MGEC algorithm. In the experimental results, the average peak signal-to-noise ratio (PSNR) of the proposed method was improved by up to 8.144 dB compared to that of the benchmark method, while the power consumption was reduced substantially. In addition, when we applied the proposed techniques to reduce the computational cost of the MGEC algorithm, the computation time was reduced by up to 95.801% compared to that of the original algorithm. View full abstract»

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  • Content-Based LCD Backlight Power Reduction With Image Contrast Enhancement Using Histogram Analysis

    Publication Year: 2011 , Page(s): 550 - 555
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1048 KB) |  | HTML iconHTML  

    In recent years, low-power technology has had a significant impact on portable electronic devices; with mobile devices, the low-power circuit design has become the primary issue. At present, thin-film transistor liquid crystal display (TFT LCD) is widely used in handheld mobile devices. In terms of the overall system power consumption, TFT LCD power consumes 20%-45% of total system power due to different applications. The backlight of an LCD display dominates the power consumption of the whole system; controlling the backlight current to reduce the brightness and the contrast of LCDs can reduce the overall power consumption. However, this may cause significant changes in visual perception. In order to reduce the power consumption and eliminate the visual changes, the issue becomes: how to reduce the current by adjusting brightness and contrast in accordance with the current image. Based on content analysis, this paper proposes two new algorithms: the new backlight-dimming algorithm (NBDA) and the new image enhancement algorithm (NIEA). The proposed methods can, on average, simultaneously reduce power consumption by 47% and improve the image enhancement ratio by 6.8%. Moreover, the structural-similarity index metric (SSIM) is used to evaluate image quality. View full abstract»

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  • Design of Real-Time Image Processing Engine for Electrophoretic Displays

    Publication Year: 2011 , Page(s): 556 - 561
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1614 KB) |  | HTML iconHTML  

    In this paper, we propose a real-time hardware engine that performs the image halftoning as well as the photometric calibration for coping with nonlinear optical response of electrophoretic displays (EPDs). The engine quantizes an input image into fewer gray levels on the fly to accommodate the EPD characteristics. Since the number of available gray levels as well as the electro-optical response is temperature dependent, the engine performs adaptive image processing based on temperature dependent characteristics. The experimental results show that the performance of the proposed hardware engine meets the specification of real-time applications, and the quality of the displayed image can be significantly improved. View full abstract»

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  • An Intra-Panel Interface With Clock-Embedded Differential Signaling for TFT-LCD Systems

    Publication Year: 2011 , Page(s): 562 - 571
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1808 KB) |  | HTML iconHTML  

    In this paper, an intra-panel interface with a clock embedded differential signaling for TFT-LCD systems is proposed. The proposed interface reduces the number of signal lines between the timing controller and the column drivers in a TFT-LCD panel by adopting the embedded clock scheme. The protocol of the proposed interface provides a delay-locked loop (DLL)-based clock recovery scheme for the receiver. The timing controller and the column driver integrated with the proposed interface are fabricated in 0.13- μm CMOS process technology and 0.18-μm high voltage CMOS process technology, respectively. The proposed interface is verified on a 47-inch Full High-Definition (FHD) (1920RGB×1080) TFT-LCD panel with 8-bit RGB and 120-Hz driving technology. The maximum data rate per differential pair was measured to be as high as 2.0 Gb/s in a wafer test. View full abstract»

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  • Evolution of Modern Display Technologies in a 3D Ecosystem

    Publication Year: 2011 , Page(s): 572 - 578
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1702 KB) |  | HTML iconHTML  

    Since its invention by the end of the 19th century, display technologies have undergone several (r-)evolutions, from the introduction of color in the late 1950s to the arrival of the first flat panel TVs in mid-1990s. Today, we are faced again with a further evolutionary step manifested by the introduction of another dimension: vision depth. In this paper, we will give a rapid overview of the latest key evolutions of the flat panel technologies before entering the world of stereoscopic displaying, its status, trends, and outlook. View full abstract»

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  • Blank page

    Publication Year: 2011 , Page(s): 579 - 580
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  • Journal of Display Technology information for authors

    Publication Year: 2011 , Page(s): C3
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  • Blank page [back cover]

    Publication Year: 2011 , Page(s): C4
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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.