- 學位論文
奈米碳管誘發之高效能電漿背光板
Carbo nanotubes induced high efficiency plasma backlight panel
摘要
本論文之研究是建立一個以奈米碳管觸發之低消耗功率的電漿背光板。此電漿 背光板有別於一般傳統電漿背光板的獨特之特性，例如：低消耗電功率、高發光效 率、簡易之製程以及低廉的生產成本。首先我們使用氧化銦錫玻璃作為此電漿背光 板上板以及下板之基板，以其氧化銦錫薄膜層作為上下板之電極結構。我們使用可 見光激發之螢光粉體與粘著劑 (BP-55) 混合，並且以網板印刷的方式將螢光粉印刷 在氧化銦錫玻璃基板之上。在此過程中，我們加入少許的奈米碳管於螢光粉體中， 這就是本元件產生低壓電漿的關鍵。完成元件組裝之後，我們測量此面板各種不同 的特性，其中包括元件的輝度、色度、光譜分佈、電流電壓特性以及帕森氏特性曲 線。完成元件特性測量之後，我們優化元件的輝度，例如 : 在背光板的後板加上反 射層以達補光之效果、在氬氣電漿中通入少量氦氣以利用混合氣體電漿所產生之潘 寧效應增強有效激發螢光粉體之激發光，以及利用脈衝式電路驅動此元件等方法。 配合以上優化之條件，此以奈米碳管觸發之電漿背光板的最大輝度在約1.4 瓦特的 低功率驅動條件下可達550 燭光/米平方。此外，實驗證實應用奈米碳管於中華映管 股份有限公司所開發之14 英吋交流式電漿背光板樣品中，商業要求之標準輝度下 (10,000 燭光/米平方)，所加入的奈米碳管將可為其背光板降低百分之二十的功率消 耗。
並列摘要
We fabricated a carbon nanotubes (CNTs) induced plasma backlight panel (CNTs-PBP). This flat plasma panel has unique properties which are low power consumptions, high luminous efficiency, simple production process and low prime cost. Firstly we used the indium-tin-oxide (ITO) glasses as the substrate of the front and the rear panel. The ITO film is used for the electrodes in the light panel. The phosphor powder which was visible light excited and mixed with the commercial binder (BP-55), then screen printed on the ITO-glass substrates. In this process, we added some CNTs in the phosphor powder. This is the key point about the low breakdown voltage of the plasma generation. After fabricated the panel, we measured the luminance intensity, chromaticity diagram, current and voltage characteristics, emission light spectrum and the Paschen’s behavior of the device. Furthermore we optimized the luminance of the device with different methods such as adding a reflection layer behind the rear panel, mixing helium gas into the argon plasma and driven the prototype panel by pulse voltage. In the conclusion, the device has a good luminance 550 cd/m2(nits) and a low power consumption 1.4 W. And we also attempt this approach in a study-commercial 14-inch AC- PBP which fabricated in Chunghwa Picture Tubes, LTD. (CPT) while the present of the CNTs that increased almost 20% of the luminous efficiency at the commercial luminance intensity standard (10,000 cd/m2) of the backlight panel.