文章信息/Info

Title:

Stretchable Light Scattering Display Based on Super Strong Liquid Crystalline Physical Gels with Special Loofah�睱ike 3D Gel Networks

作者:

 陳思; 童曉倩; 何薈文; 王旭

浙江工業(yè)大學材料科學與工程學院

Author(s):

CHEN Si;  TONG Xiaoqian;  HE Huiwen; WANG Xu

 College of Materials Science and Engineering, Zhejiang University of Technology

關鍵詞:

可拉伸; 液晶光散射顯示器件; 超分子液晶凝膠; POSS核樹枝狀大分子

DOI:

10.7502/j.issn.1674-3962.2016.05.05

文獻標志碼:

A

摘要:

將一種具有自組裝特性的新型POSS核凝膠因子添加到含有偶氮苯光響應劑的液晶基體中，獲得具有高Tsg（凝膠-溶膠轉(zhuǎn)變溫度）和抗張強度的超強液晶物理凝膠。偶氮苯光響應劑賦予該液晶物理凝膠波長響應特性，液晶基體賦予其溫度響應特性，所獲液晶物理凝膠不同的響應狀態(tài)之間具有顯著的對比度差異，使其無需使用傳統(tǒng)液晶顯示器中必不可少的偏振片也能顯示出清晰的圖像信息。偏振片的省去極大地簡化了顯示器件的結(jié)構(gòu)，使得該液晶物理凝膠超強的力學性能得以充分利用，用以制備一種新型的可拉伸液晶顯示器件，該顯示器件在拉伸到原始長度的145%時仍能清晰地顯示原有的圖像信息。由于該器件的制備過程簡單，可以通過包括滴涂、旋涂以及高溫噴涂等在內(nèi)的傳統(tǒng)加工工藝制備獲得，相信全拉伸型液晶顯示器件在將來可以獲得廣泛的應用。

Abstract:

 A novel kind of super strong liquid crystalline physical gel with high Tsg( gel�瞫ol transition temperature) and tensile strength is reported in this paper, which is obtained from adding a new kind of POSS�瞔ore dendrimers into host liquid crystals with photoresponsive agents containing azo�瞔hromophores. The azo�瞤hotoresponsive agents provide the liquid crystalline physical gel photo�瞨esponse properties and the host liquid crystals provide the liquid crystalline physical gel thermo�瞨esponse properties. So that the result liquid crystalline physical gels show clear contrast differences at different phases, so that polarizers in the devices could be abandoned to greatly simplify the device structures. Combing with the strong mechanical properties of the supramolecular liquid crystalline gels, a novel kind of stretchable liquid crystalline light scattering display is prepared in this paper, which can clearly show the original image information even be stretched to 145% times of the original length. Considering the preparation process of such device is quite simple, and traditional processing methods including dispensing coating, spin coating and high temperature spray coating are all suitable to be used, we believe such kind of stretchable liquid crystalline displays will get extensive application in the future.