Ion-Charge Effects on the Optical Performance of Liquid Crystal Cells

• Main Authors: Peng , Shiu-Jang, 彭旭彰
• Other Authors: Lin, Hong-Cheu
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/52083605452533296028

碩士 === 國立交通大學 === 平面顯示技術碩士學位學程 === 100 === In this thesis,ion-charge effects on the variation of optical performance of liquid crystal cells was been studied and the optical performance means “transmission”and “view angle”.Three kinds of liquid crystal cells were made by different types polyimide,and then these cells were storage at three kinds of test conditions till after 500 hours,respectively.After that,measure the ion density and optical performance of these cells to get clear dependency. Therefore,at the same time,to know which factor could be the major impact for the quality issue of liquid crystal display. How to decide these test conditions? This is because that all of liquid crystal displays are almost used in these environmental conditions.According to the test result,the problem could be studied and solved to provide better quality liquid crystal displays and enough protection for user. On the other hand,three kinds of polyimides were used in this experiment(including two types polyimide that also represents three kinds of pretilt angles),therefore,it can be investigate which design is good for optical performance. Keywords：Image Sticking、Polyimide、Pretilt Angle、Ion Charge、 Ion Density、Liquid Crystal Display、Voltage Holding Ratio、View Angle、Contrast、Transmission、Rubbing、Alignment、Liquid Crystal Cell.