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河北工业大学 应用物理系 天津,中国,300401
收稿日期:2012-03-09,
修回日期:2012-03-30,
网络出版日期:2012-08-15,
纸质出版日期:2012-08-15
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胡霄骁, 孙玉宝. 新型多畴扭曲向列相液晶显示器[J]. 液晶与显示, 2012,(4): 481-485
HU Xiao-xiao, SUN Yu-bao. Novel Multi-Domain Twisted Nematic Mode Liquid Crystal Display[J]. , 2012,(4): 481-485
提出在像素电极下方放置凸起物
获得具有宽视角特性的多畴扭曲向列相液晶显示器。该模式比传统的多畴TN模式摩擦过程少
工艺过程简单。在这种液晶显示器中
初始状态(未加电)时
分子排列结构和普通单畴TN模式相同
在加电压状态时
由于凸起物的存在
液晶分子沿着4个不同的方向排列形成多畴区域。文中运用专业液晶模拟软件模拟
对该液晶显示器的电光特性进行研究
结果表明
该液晶显示器具有宽视角、色散小及色彩还原性较好的特性。
This paper proposed a wide viewing angle twisted nematic (TN) liquid crystal display (LCD) with a protrusion structure under the pixel electrode. The proposed LCD mode avoids the complex rubbing processes because of the protrusion which induces the multi-domain structure like the conventional multi-domain TN mode. As no voltage applied
the LC profile is the same as that of the normal TN cell
the LC molecules tilted four different directions to obtain the multi-domain structure while the operate voltage is applied. In this paper
the electro-optic characteristics is simulated using the professional software
and the results show that the proposed multi-domain TN LCD has the wide viewing characteristics and low color shift.
黄锡珉.液晶显示技术发展轨迹 [J]. 液晶与显示, 2003,18(1):1-6.[2] Schadt M, Helfrich W. Voltage-dependent optical activity of a twisted nematic liquid crystal [J]. Appl. Phys. Lett., 1971, 18(4):127-128.[3] 马红梅,李志广,张志东.双轴补偿超扭曲相列相液晶显示设计软件 [J]. 液晶与显示, 2002,17(5):347-352.[4] 李宝忠,何天白,丁孟贤.扭曲向列型液晶显示器的相补偿-应用各向异性薄膜增大扭曲向列液晶显示器的视角 [J]. 液晶与显示, 1996,11(1):26-33.[5] Hwang S H, Lim Y J, Lee M H, et al. Comparison of optical compensations based on discotic liquid crystals with linear and non-linear orientation for wide viewing angle twisted nematic liquid crystal displays [J]. Current Applied Physics, 2007, (7):690-696.[6] Lin C H. Twisted-nematic liquid-crystal displays with small grayscale inversion and wide viewing angle [J]. Appl. Phys. Lett., 2009, 94(18):118109-118111.[7] Kwon D W, Lim Y J, Jeon E J, et al. Film compensation of twisted nematic liquid crystal display using a rod-like reactive mesogen [J]. Current Applied Physics, 2011, 11:725-730.[8] Schadt M, Seiberle H, Schuster A. Optical patterning of multi-domain liquid-crystal displays with wide viewing angles [J]. Nature, 1996, 381:212-215.[9] Na J H, Kim Y T, Hong J H, et al. Wide-viewing twisted-nematic liquid crystal display using a stamping-assisted rubbing process //SID 2010 Digest, USA: SID, 2010:1735-1737.[10] Lien A J, Challiss R A J. Two-domain TN-LCDs fabricated by parallel fringe field method //SID 1993 Digest, USA: SID, 1993:269-272.[11] Koma N, Baba Y, Matsuoka K. No-rub multi-domain TFT-LCD using surrounding electrode method //SID 1995 Digest, USA: SID, 1995:869-872.[12] Gunning W J, Winker B K, Koch G C. Pixelated compensators for twisted nematic liquid crystal displays: USA, US005589963A.1996-12-31.[13] Kim J H, Choi Y J, Yoon K H, et al. Method of fabricating a multi-domain liquid crystal cell: USA, US005909265A.1999-01-01.[14] Murai H, Suzuki M, Suzuki T. Multiple domain divided twisted nematic liquid crystal display with compensation film: USA, US006195144B1.2001-02-27.[15] Kim K J, Yoo J J, Bae S J. Multi domain liquid crystal display device: USA, US006356335B1.2002-03-12.
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