液晶与显示2016，Vol.31Issue(8)：755-759,5.DOI:10.3788/YJYXS20163108.0755
温度对液晶盒电容的影响
Influence of temperature on the capacitance of liquid crystal cell
摘要
Abstract
The capacitance of liquid crystal cell is associated with the value of external applied voltage. When the temperature of the liquid crystal is changed,the capacitance of liquid crystal cell will also change even if the applied voltage has a certain value.In order to research the influence of tempera-ture,adopting the method of alternating current (AC)bridges,the capacitance of parallel aligned ne-matic (PAN)liquid crystal cell filled in liquid crystal 5CB is measured experimentally,where the pre-cision hot stage (LTS350,Linkam)is used to control the temperature of liquid crystal cell.The volt-age-capacitance characteristic curves of PAN cell for different temperatures are obtained.Within the scope greater than the threshold voltage,with the increasing of temperature the capacitance of PAN cell increases gradually under the same voltage and the curve slope is gradually reduced,which sug-gests that LC transforms gradually into the isotropic state.The study has certain guiding significance on further analyzing the dielectric constant of liquid crystal material.关键词
液晶盒电容/交流电桥/平行排列向列相/介电常数Key words
capacitance of liquid crystal cell/alternating-current bridges/parallel aligned nematic/di-electric constant分类
数理科学引用本文复制引用
郝慧明,张平,张翰卿,王晓燕,叶文江..温度对液晶盒电容的影响[J].液晶与显示,2016,31(8):755-759,5.基金项目
河北省自然科学基金(No．A2014202123) （No．A2014202123）
河北省教育厅项目(No．QN2014130) （No．QN2014130）
大学生创新创业训练计划项目(No．201510080058) （No．201510080058）
河北省高校重点学科资助课题Supported by Natural Science Foundation of Hebei Province (No．A2014202123) （No．A2014202123）
Research Project of Hebei Ed-ucation Department (No．QN2014130) （No．QN2014130）
Project of college students’innovation and entrepreneurship training program (No．201510080058) （No．201510080058）
Key Subject Construction Project of Hebei Province University． （）
