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研究生: 鄭力維
Li-Wei Cheng
論文名稱: LCD顯示特性量測流程之實現
An Implementation of a Measurement Flow for LCD Displaying Characteristics
指導教授: 阮聖彰
Shanq-Jang Ruan
口試委員: 胡能忠
Neng-Chung Hu
陳鴻興
Hung-Shing Chen
李君浩
J. H. Lee
陳政寰
C. H. Chen
學位類別: 碩士
Master
系所名稱: 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年: 2005
畢業學年度: 93
語文別: 中文
論文頁數: 97
中文關鍵詞: 時間穩定度閃爍對比度Gamma均勻度色域特性量測LCD
外文關鍵詞: Gamma, Flicker, Contrast Ratio, Temporal Stability, Uniformity, Color Gamut, LCD, Measurement, Characteristics
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  • 近年來LCD產品應用的領域逐漸擴大,其低功率與小體積之優點為平面顯示媒材未來之發展提供良好的利基。LCD取代傳統CRT之條件是具備可匹配或超越的影像表現能力,但目前尚有許多影響畫面品質之因素需逐一克服,如色域大小、對比度與均勻度、閃爍現象等。若能將這些顯示的議題經由檢測規範取得量測數據並進行分析,則即能根據量測結果辨識LCD顯示器的好壞或進一步地提供關於顯示品質修正之辦法。
    本論文根據LCD面板量測標準規範IEC 61966-4之項目,實現一套自動化量測工具。透過建構在視窗環境的使用者介面程式,各種檢測項目的數據能方便地儲存,檢測流程項目包含了Color Gamut、Uniformity、Gamma、Contrast Ratio、Flicker及Temporal Stability。流程項目測得之數據與圖形都能即時地顯示、繪製,全自動化量測是系統之目標;分析量測結果亦是本論文研究的工作。經由螢幕OSD設定LCD監視器之色溫,將量測數據以綜合性的方式分析並比較其色彩再現之差異。


    Recently, LCD applications have been making great strides which provide the media of flat panel displays with good niche in the future de-velopments due to their low power consumption and compact size. The condition of replacing conventional CRT with LCD is either capable or achievable competence for displaying images, but there are still some ef-fects upon the image quality needed to be made, e.g. color gamut range, contrast ratio and uniformity, flicker, etc. If the data of those displaying issues can be obtained and analyzed by utilizing the measurement stan-dard, then measured results can not only distinguish between good and poor for LCD but give a correction of the image quality in the further way.
    This paper implements an automatic measurement tool based on the items of LCD panels measurement standard specification, IEC 61966-4. By developing the user interface application in the windows environment, each measurement item can save the data easily. The measurement follow includes Color Gamut, Uniformity, Gamma, Contrast Ratio, Flicker and Temporal Stability. Data and related graphs can be displayed and plotted immediately in the program windows. The goal of the system is bringing a fully automatic measurement. Also, to analyze measured results is the research work of this paper. Through setup the color temperature of the LCD monitor by OSD, the discussions refer to analyze measured data synthetically and compare the difference of the color reproduction.

    中文摘要..........................I 英文摘要.........................II 致  謝........................III 目  錄.........................IV 圖表索引.........................VI 第一章緒論.....................1 1.1前言.....................1 1.2研究目的.................1 1.3論文架構.................2 第二章色彩學基礎理論...........3 2.1光.......................3 2.2人眼視覺與色彩...........4 2.3色彩空間.................5 2.4色溫與相關色溫..........13 2.5光度學量測單位..........15 第三章LCD顯示器特性...........19 3.1背景....................19 3.2色域....................22 3.3對比度..................25 3.4光電轉換函數............25 3.5LCD驅動方式.............27 第四章顯示特性量測流程........32 4.1系統描述................32 4.2系統設備與量測環境......37 4.3量測項目................39 第五章實驗....................43 5.1實驗說明................43 5.2輝度時間穩定實驗........43 5.3色溫實驗................49 5.4閃爍現象實驗............55 5.5對比度實驗..............63 5.6色域實驗................66 5.7GAMMA曲線實驗...........68 第六章結論與未來展望..........81 6.1結論....................81 6.2未來展望................82 作者簡介.........................83 參  考.........................84

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