低溫多晶矽主動矩陣有機發光二極體灰階脈寬調變畫素電路分析及模擬

PWM GRAY SCALE PIXEL CIRCUIT ANALYSIS AND SIMULATION FOR LTPS AMOLED PANEL

林代明(Tai-Ming Lin)

指導教授 ： 林登彬

大同大學/電機資訊學院/通訊工程研究所/碩士(2005年)

摘要

有機發光二極體顯示器是未來極具潛力的平面顯示器。在這篇論文中，我們採用Cadence模擬軟體來分析及模擬灰階脈寬調變畫素驅動電路，該電路是以日立公司所開發的嵌位反向電路為基礎來表現全彩，加上改善動態畫面品質之設計及增加有機發光二極體使用壽命的交流驅動電路。
在發光的架構上是以紅綠藍三色獨立發光之有機發光二極體，搭配低溫多晶矽背板所實現之畫素驅動電路，元件模型為中華映管公司所自建。在相關電路的實現上，可採用現行的商用行驅動IC (聯詠:NT3947)及信號處理晶片(旺宏:MX88V44)，使整個電路架構更易於實現。

關鍵字

電壓驅動 ； 電流驅動 ； 灰階 ； 主動矩陣有機發光二極體 ； 畫素電路 ； 脈寬調變

並列摘要

OLED is the promising flat panel display in the future. In this thesis, we adopt the Cadence simulator to analyze and simulate the proposed PWM gray scale pixel circuit based on Hitachi developed “Clamping Inverter Driving Circuit” to represent full color display, with modification for moving picture performance improvement, moreover a ac-driving method to prolong the OLED lifetime is included.
The separate R, G, B emitters are adopted to display the full color and the pixel driving circuit are implemented by LTPS fabrication process, the component models are set up by CHUNGHWA PICTURE TUBES Ltd. The column driver LSI ( Novatek NT3947) and video processor chip (MXIC, MX88V44.) are now available to make the whole circuit design easily.

並列關鍵字

AMOLED ； current driving ； gray scale ； hold-type ； pixel driving circuit ； PWM ； voltage driving

參考文獻

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