- 學位論文
菱形電極的水平電場驅動垂直配向液晶盒之光學特性探討
Study on the electro-optical characteristics of vertical alignment nematic liquid crystal cell driven by in-plane switching with diamond electrode structure
摘要
最近，液晶顯示器已廣泛應用於各個領域，如手機，電視和桌上型電腦螢幕，因為液晶顯示器具有輕、薄、低耗能等優點。為了呈現高品質的影像，液晶顯示器有幾個特性需要改善，例如視角，響應時間等... 本文利用Techwiz3D模擬新型的菱形電極結構之水平電場驅動垂直配向之液晶盒；因為我們的菱形電極結構含有最短間距與最長間距，縮短最短間距，能減少閾值電壓，達到低電壓驅動；在加電壓的過程中，液晶的排列為splay(延展)到bend(彎曲)，所以我們的mode有非常快的響應時間；經過視角補償後也具有廣視角(wide viewing angle, WVA)的特性。
並列摘要
Recently, liquid crystal displays have been widely used in various fields such as mobile phones, television and desktop monitors. Most of them adopt liquid crystal displays, because of their slimness, flatness, and low power consumption, etc. In order to show high quality images, a few features of liquid crystal displays need to be improved, such as viewing angle, response time, driven voltage, etc. In this thesis, we use vertically aligned nematic liquid crystal cell driven by in-plane switching. Techwiz3D software was used in the simulation. The electrode structure has diamond shape that contains the shortest spacing and the maximum spacing. Shortening the shortest spacing can achieve low threshold voltage. When driving this novel mode, the alignment of liquid crystal changes from splay state to bend state. Both the splay and bend state have very fast response time. We also designed a viewing angle compensation features to achieve a wide viewing angle characteristic.