近年來液晶顯示器廣泛應用於資訊技術，如液晶電視、液晶螢幕、筆記型電腦和手機。由於液晶本身不發光，因此液晶顯示器需要有一光源裝置，使其能正常顯示影像。通常光源以使用冷陰極螢光燈管為主，又因此光源置於液晶顯示器後方，故此光源裝置就稱為“背光模組”。
由於背光模組於點燈狀態下，冷陰極螢光燈管本身會自發性加熱產生溫度，此溫度會對背光模組內各膜層產生形變，進而導致輝度不均的現象。因此，本文即實際去點燈7吋背光模組，以熱電偶測量溫度分佈，並以輝度計和CCD（電荷耦合元件）攝影機作輝度的量測，研究輝度受燈管溫度影響實際變化的結果。結果顯示背光模組內部的溫度有使均勻度變好的趨勢。

Liquid crystal displays (LCDs) have been widely used in the information technology such as LCD-TV, LCD monitor, laptop computer and mobile phones. Because liquid crystal does not emit lights by itself, a backlight source should be needed in order to produce viewable images on a LCD. The module which provides the light source is usually called ‘‘backlight module (BLM)’’ and a cold cathode fluorescent lamp (CCFL) is used as the light source, which is placed behind the panel of the LCD.
Due to the temperature increase of the CCFL in a BLM of a LCD subjected to lighting state, micro-deformation will occur in the BLM and result uneven luminance phenomena. The purpose of this research is to study the effects of heat source from CCFL on luminance in the BLM of a 7-inch LCD. The temperature distributions are measured by using thermal couple and the luminance variations of the BLM are measured by using luminance meters and CCD camera. The results show that the luminance distribution is more even because of the heat source from CCFL in BLM.

摘要.....................................................................................................i
ABSTRACT......................................................................................ii
謝誌.................................................................................................iii
目錄.................................................................................................iv
表說明...............................................................................................vi
圖說明...............................................................................................vii

第一章 緒論..............................................................................................1
1.1 背光模組產業概況.............................................................1
1.2 背光模組各元件功能簡介.................................................3
1.3 文獻回顧...............................................................5
1.4 研究目的與動機....................................................7
第二章 實驗架構與方法.............................................................16
2.1 研究方法.............................................................16
2.2 溫度量測實驗....................................................17
2.2.1 實驗方法.............................................................17
2.2.2 實驗步驟.............................................................17
2.3 輝度量測實驗.............................................................18
2.3.1 LS-110輝度計量測...........................................................19
2.3.1.1 實驗架構..........................................................19
2.3.1.2 實驗方法..........................................................20
2.3.1.3 實驗步驟..........................................................20
2.3.2 CCD camera量測...................................................21
2.3.2.1 實驗方法..........................................................21
2.3.2.2 實驗步驟..........................................................22
第三章 實驗結果與討論......................................................32
3.1 溫度量測結果........................................................32
3.2 均勻度定義..........................................................33
3.3 輝度量測結果........................................................34
3.3.1 LS-110輝度計量測結果........................................35
3.3.2 CCD camera灰階與輝度關係...............................36
3.3.3 CCD camera量測結果........................................37
第四章 結論與未來展望............................................................56
4.1 結論...........................................................................56
4.2 未來展望.....................................................................56
參考文獻....................................................................................58

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