Maximizing electro‐optic performances in the fringe‐field switching liquid crystal mode with negative dielectric anisotropic liquid crystal |
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Authors: | Young Jin Lim Jin Hyun Kim Han Sol Choi Byeong Hoon Lee Dae Hyung Kim Sudarshan Kundu Jun Ho Jung Seung Hee Lee Philip J. Bos |
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Affiliation: | 1. Applied Materials Institute for BIN Convergence, Department of BIN Fusion Technology and Department of Polymer Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk, Korea;2. Chemical Physics Interdisciplinary Program, Liquid Crystal Institute, Kent State University, Kent, Ohio, USA |
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Abstract: | The fringe‐field switching (FFS) mode that uses liquid crystals (LCs) with negative dielectric anisotropy is used in high‐resolution FFS liquid crystal display owing to its higher transmittance over positive LC, although its response time becomes slow and operating voltage (Vop) becomes high. In the device, reduction of the cell gap is required to achieve fast response time, which results in increase in Vop in general. In this paper, we propose the FFS mode with electrode width 1 µm and distance between the electrodes 1.5 µm. In such an electrode structure, Vop decreases with decreasing cell gap to 2 µm so that a proper Vop, high LC's light efficiency of 90%, a high color temperature, and a fast response time less than 10 ms, can be achieved, which maximizes electro‐optic performance of the FFS mode. |
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Keywords: | fringe‐field switching fine pattern transmittance response time |
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