Development on novel liquid crystal displays without using any alignment layers by surface structural arrangement of dendrimers

通过树枝状聚合物的表面结构排列开发不使用任何取向层的新型液晶显示器

• 批准号: 23350108
• 负责人: YONETAKE Koichiro
• 金额: $ 4.83万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-11-18 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23350108/
• 关键词: デンドリマー; 液晶; ディスプレイ; 配向膜; 垂直配向; ホメオトロピック配向; ネマチック液晶; プラスチック基板; ホメオトロピック; 応答時間

Liquid crystalline displays (LCDs) generally use polyimide alignment layers to determine the director orientation of liquid crystal molecules on voltage-off state. The preparation of the alignment layer usually requires large quantities of solvent, high temperature operation, and rubbing process, which has harmful influence on integrated circuits of LCDs and cleanliness of clean rooms. We have developed LCDs without any polyimide layers simply by dissolving liquid crystalline dendrimers into nematic liquid crystal. The liquid crystalline dendrimers induced vertical alignment of liquid crystal molecules on the bare glass and ITO glass. And we have successfully developed LCDs with plastic substrates instead of glasses, because the novel preparation process of LCDs needs no high-temperature process.

液晶显示器（LCD）通常使用聚酰亚胺取向层来确定液晶分子在电压关断状态下的指向矢取向。配向层的制备通常需要大量的溶剂、高温操作和摩擦工艺，这对LCD的集成电路和洁净室的洁净度具有有害影响。我们已经开发出没有任何聚酰亚胺层的液晶显示器，只需将液晶树枝状聚合物溶解到无规液晶中。液晶树枝状聚合物诱导液晶分子在裸玻璃和ITO玻璃上的垂直取向。我们已经成功地开发出了塑料基板而不是玻璃基板的液晶显示器，因为液晶显示器的新制备工艺不需要高温工艺。

项目成果

Orientation and Polarized Optical Emission Properties of Platinum(II) Complexes in Smectic Liquid Crystals

• DOI: 10.1002/ejic.201201388
• 发表时间: 2013-04
• 期刊: European Journal of Inorganic Chemistry
• 影响因子: 2.3
• 作者: Takeshi Sato;H. Awano;H. Katagiri;Yong‐Jin Pu;Tatsuhiro Takahashi;K. Yonetake

Development of Polyimide-Free Liquid Crystal Displays by Using Polypropyleneimine Dendrimers Having Peripheral Mesogenic Units

利用具有外围介晶单元的聚丙烯亚胺树枝状聚合物开发不含聚酰亚胺的液晶显示器

• 发表时间: 2014
• 作者: 小平哲也;阪本康弘;池田拓史;O. Haba
• 通讯作者: O. Haba

Effects of dendrimers on liquid crystal alignment in liquid crystal display

树枝状聚合物对液晶显示器中液晶取向的影响

• 发表时间: 2012
• 作者: 石川善恵;越崎直人;Alexander Pyatenko;N. Funakoshi
• 通讯作者: N. Funakoshi

Rheology of Polyimide Substrate Detected as Image Sticking Effect of Liquid Crystal Display

聚酰亚胺基材的流变性检测液晶显示器的残影效应

• 发表时间: 2012
• 作者: Y. Momoi;T. Koda;M. Kwak;A. Nishioka;O. Haba;K. Yonetake;D. Choi;Y. Choi;K. Jeong
• 通讯作者: K. Jeong

Polyimide-Less Alignment by Dendrimers Dissolved in Liquid Crystal

通过溶解在液晶中的树枝状聚合物进行无聚酰亚胺排列

• 发表时间: 2012
• 作者: F. Li;H. Zhang;Q. Wang;T. Zhou;B;Kim;Y;Sakka;C. Hu;Q. Huang;T. Sakuma
• 通讯作者: T. Sakuma