Surface Modification of liquid crystal by microwave plasma

• Main Authors: Shan-Yuan Hsieh, 謝順原
• Other Authors: Li-Choung Chiang
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/55627587921837594600

碩士 === 輔英科技大學 === 環境工程與科學系碩士班 === 94 === Liquid crystal display(LCD) is the new generation monitor widely used in 3Cs industrial products. It can be proposed that a large quantity of LCD monitor will be disposed near future. Therefore, the management strategy for waste LCD monitor is an important issue, and any kind of technology improving the reuse/recycle of LCD monitor will be appreciated. In this study, a microwave plasma technology is employed for the surface modification of liquid crystal on LCD panel to evaluate the influence on LCD panel cleaning. The experimental results from contact angel measurements show that surface characteristic of liquid crystal on LCD panel was modified by microwave plasma treatment. The results of elemental analysis and fluorescence spectrum also indicate that the molecular structure of liquid crystal was varied by plasma treatment. The plasma operation parameters, including atmosphere condition, treatment time, and treatment location were found to have influence for surface no improvement for the separation of liquid crystal from LCD panel at water soaking process.