The decrease of the residual direct current (DC) voltage (V rdc ) of the anti-parallel liquid crystal (LC) cell using silver (Ag)-doped Polyimide (Ag-d-PI) alignment layers is presented in this manuscript. A series of Ag/PI composite thin layers are prepared by spurting or doping PI thin layers with Ag nano-particles, and Ag/PI composite thin layers are highly transparent and resistive. LC are homogeneously aligned between 2.0 mg/ml Ag-d-PI alignment layers, and the V rdc of the cell that assembled with Ag-d-PI alignment layers decreases about 82%. The decrease of V rdc is attributed to the trapping and neutralizing of mobile ions by Ag nano-particles. Regardless of the effect of Ag nano-particles on the conductivity of Ag-d-PI alignment layers, the voltage holding ratio (VHR) of the cells is maintained surprisingly. The experiment results reveal a simple design for a low V rdc LC cell.
Bibliographical noteFunding Information:
Funding: This work was sponsored by Shanghai Sailing Program (No. 18YF1400900), the National Natural Science Foundation of China (NSFC, No. 6180030581) and Fundamental Research Funds for the Central Universities (No. 2232018D3-29 and No. 2232017D-10).
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)
- Materials Science(all)
- Condensed Matter Physics
- Inorganic Chemistry