Effects of Pretilt Angle on Electro-Optical Properties of Optically Compensated Bend Liquid Crystal Devices With a Mixed Polyimide Alignment Layer

被引：4

作者：

Lin, Guan-Jhong ^{[1
]}

Chen, Tien-Jung ^{[2
]}

Lin, Bo-Rong ^{[2
]}

Liao, Hsuan-I ^{[2
]}

Chang, Yi ^{[2
]}

Wu, Jin-Jei ^{[2
]}

Yang, Ying-Jay ^{[1
]}

机构：

[1] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan

[2] Natl Taipei Univ Technol, Dept Electroopt Engn, Taipei 10608, Taiwan

来源：

JOURNAL OF DISPLAY TECHNOLOGY | 2016年 / 12卷 / 03期

关键词：

Mixed polyimide concentration; optically compensated bend; output transmittance; pretilt angle; response; PI-CELL; ORIENTATION; SURFACES;

D O I：

10.1109/JDT.2015.2502722

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effects of pretilt angle on electro-optical properties of optically compensated bend liquid crystal cells with a mixed polyimide alignment layer are investigated. By adjusting the mixed polyimide concentration, several kinds of alignment layers are produced, and a wide range of pretilt angles (2 degrees - 66 degrees) are achieved. Differing from the conventional addresses, the maximum-light-transmittance voltage, obtained from the transmittance-voltage curve of the cell undergoing the reverse measurement, is employed, making a similar to 14% enhancement in the output transmittance. Compared to the 0-wt% cell, the 0.6-wt% cell with 16 degrees pretilt angle achieves similar to 38% and similar to 50% improvement in the rising-time and falling-time response, respectively.

引用

页码：302 / 308

页数：7

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