多區域垂直配向顯示器的參數優化設計

Optimal Design of Multi-domain Vertical Alignment LCD

曾宜雯(I-wen Tseng)

指導教授 ： 張榮森

國立中央大學/理學院/光電科學研究所/碩士(2012年)

摘要

摘 要
本論文以多區域垂直配向顯示器模擬(Multi-domain vertical alignment)
為主要的驅動方式，模擬其液晶模態，使得液晶顯示器具備基本的廣視角
及良好的光電效率:
1. 根據 TFT 元件設計原理，設計出具有廣視角效果的多區域垂直配向結
構，並討論參數對光電曲線的影響。採用廣視角MVA 技術主要優勢，
在於改善暗態漏光使增加對比，並使視角達到優化的效果。
2. 採用垂直配向技術，具有高穿透率、高開口率以及快速反應時間等特性；
此外，有效利用優化的光阻配方，以及高層次的光學畫素設計可使對比
度顯著提高。
3. 針對設計面可改變：a.ITO 電極b.Slit 寬度c.介電異方性等性質進行比
較。
4. 利用模擬軟體TechWiz LCD 的功能，藉由理論計算結果，外加補償相位
遲滯片與液晶層特性的模擬。
依此我們可依照相同的觀念設計出效果優異具有廣視角與高對比度的
MVA 結構，將此結果做為設計參考依據，並藉此減低因設計不良造成的開
發費用與時間消耗，達到降低成本的效果。

關鍵字

顯示器 ； 光學 ； 垂直配向

並列摘要

ABSTRACT
The paper is about applying Multi-domain vertical alignment as a main
driver to simulate the liquid crystal form for making the TFT display with
fundamental wide angle and splendid photoelectric efficiency.
1. To elaborate the structure of wide angle effect "Multi-domain vertical
alignment" with TFT design theory and discuss the factors of the photoelectric
distribution curve. The advantages of applying wide view angle MVA
technology are all about solving Dark-state light leakage to enhance contrast and
perfecting the vision angle.
2. The advantages of applying vertical alignment are high penetrability、high
aperture ratio and short response time. Besides, we can apparently enhance the
contrast by applying a better photo resistance recipe and advanced pixel design.
3. In design area, we can adjust a. cell gap、b. the width of ITO electrode slit and
c. dielectric to compare the differences.
4. to apply "TechWiz LCD" to calculate the result by the theory and make
the collateral simulations of phase latency film compensation and the property
of liquid crystal layer.
Eventually we can figure out the structure of brilliant wide angle and high
contrast MVA by the same design concept, take that as the design rule to reduce
the expense and time wasted by improper design, and therefore we can reduce
the cost.

並列關鍵字

LCD ； Optimal ； Vertical Alignment

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