基于应变液晶原理，在聚合物分散负性液晶紫外光固化相分离过程中采用二次曝光技术，进行第二次曝光时施加了垂面拉伸应力，制备出应力诱导垂面定向聚合物分散负性液晶反式电控调光玻璃样品。样品既具有反式压光效应调光玻璃功能，又具有反式电控调光玻璃功能。处于半透明态时，透光率接近30％；施加压力或电场后变散射雾态，雾度90％以上。反式电控调光玻璃研究是调光玻璃领域难题，采用应变液晶技术制备反式电控调光玻璃对液晶电光器件的研究和应用具有重要意义。
Based on the principle of stressed liquid crystal,re-exposal method is used during the phase separation by UV curing,and vertical stretched force is applied in the second exposure process.The reverse mode electronic controlled switchable glass samples of polymer dispersed negative liquid crys-tal by stress inducing vertical directional polymerization are prepared.The sample has the properties of reverse mode piezo-optical effect and reverse mode electronic controlled switchable glass.The sam-ple is translucent and the transmittance is nearly 30%.When compress force or electronic field is ap-plied,the sample turns to scattering opaque state and the haze is above 90%.The research on reverse mode electronic controlled switchable glass is a difficult problem in the switchable glass field.Prepar-ing the sample by stressed liquid crystal technique has a certain significance in research and application of liquid crystal electro-optic device.
参考文献
| [1] | Wu B G;John L W;William D.Angular discrimination of light transmission through polymer dispersed liquid crys-tal films[J].Journal of Applied Physics,198762(09):3925-3931. |
| [2] | Wu B G;Erdmann J H;Doane J W.Response times and voltages for PDLC light shutters[J].Liquid Crystals,19895(05):1453-1465. |
| [3] | Le Grange L D;Carter S A;Fuentes M.Dependence of the electro-optical properties of polymer dispersed liq-uid crystals on the photo-polymerization process[J].Journal of Applied Physics,199781(09):5984-5991. |
| [4] | Tomohisa G;Hideya M.Preparation and characteristics of new reverse mode film of polymer dispersed LC type[J].Applied Physics Letters,199260(03):392-394. |
| [5] | 于美娜 .反式液晶/聚合物分散薄膜的制备及光电性能的研究[D].成都:四川大学,2007. |
| [6] | 范志新;刘洋;杨磊.聚合物分散液晶的电场诱导定向聚合实验研究[J].液晶与显示,201227(04):434-437. |
| [7] | 范志新;张志东;解一军 .聚合物分散液晶压光效应膜及其制造方法和应用[P].CN CN101430449,2009-05-13. |
| [8] | 范志新;解一军;刘洋 等.反式结构压光效应调光玻璃[P].CN CN102799015A,2012-09-05. |
| [9] | 范志新;高攀;冯昌喜 等.一种反式电控调光玻璃及其制造方法和应用[P].CN CN103197459A,2013-07-10. |
| [10] | 范志新;解一军;魏向东.聚合物分散液晶膜的压光效应[J].光学学报,201131(01):0131005. |
| [11] | 黎振远;范志新;李金炜.用偏光显微术研究聚合物分散液晶压光效应膜[J].光学学报,201131(08):0816001. |
| [12] | 范志新;杨宇婴;高攀.应变液晶调光玻璃显示[J].液晶与显示,201227(05):618-620. |
| [13] | 范志新;黎振远;周璇.应变液晶的负压光效应和反式压光效应[J].物理学报,201463(14):146101. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%