用于柔性液晶显示器件的粘结膜材料研究

The Study of Adhesive Film Apply to Flexible Liquid Crystal Display Device

柔性液晶显示器是液晶显示的重要发展方向.然而由于柔性基板不具备传统玻璃基板的刚性,无法保证其在工艺流程中的平整性,因此传统的液晶显示器件生产流程无法直接适用于制备柔性显示器件.现提出一种利用新型多层粘结膜材料,将柔性基板与辅助玻璃基板贴合,完成液晶显示器件制备的流程,最后通过直接剥离粘结膜即可分离出柔性显示器件的制备方法.全部的制备过程在传统液晶显示器件生产流程的框架下实现,并且可以直接剥离柔性显示器件与辅助玻璃基板分离,无需额外的紫外或其他工艺破坏粘结层来分离出柔性显示器件.通过模拟实际液晶显示的工艺流程,验证了粘结膜材料用于制备柔性液晶显示器件的可行性,并使用粘结膜材料贴合辅助玻璃基板的方法完成柔性液晶盒制备,测试液晶盒光电特性参数,对应用于柔性液晶显示器件的粘结膜材料的实际效果进行了评价.

Flexible liquid crystal display device is the main developing trend of liquid crystal display. The flexed substrate is not as rigid as the glass substrate and the planeness of the substrate carmot be maintained in the processing flow; thus, the producing procedure of the glass device cannot be directly applied to the flexible liquid crystal device. A technology of prepping the flexible liquid crystal display device under the current glass-line facility has been demonstrated. It is illustrated the processing procedure of using novel multi-layer adhesive film to adhere the flexed substrate and the temporary supporting glass plate and then separate them by peel directly after the preparation of the liquid crystal display devices. The practicability is tested through the simulation of the process flow. The practical effect is evaluated by measuring the elect optic parameter of the flexible liquid crystal cell which is prepped under the method.