| 초록 |
Orientation control of universal liquid crystal (LC) materials has been important for electro-optical applications. Here, we have obtained highly oriented universal LC materials using a simple scratching method. Uniform and linear nanogrooves are fabricated by scratching various substrates using diamond lapping films. Typical thermotropic and lyotropic LC materials in the nematic phase are well aligned along to the scratching direction. Fabricated scratch-induced nanogrooves and resulting well aligned cell are thoroughly investigated using atomic force microscopy (AFM) and polarized optical microscopy (POM). To demonstrate the versatility of our platform, twisted nematic (TN) mode LC displays are fabricated, which shows reliable electro-optical properties. Our platform suggests the simple, easy, fast, and low-cost method to fabricate various electro-optical devices as well as patterning templates. |
