In this paper,we demonstrate an alternative approach to fabricating an electrically tunable holographic polymer templated blue phase liquid crystal grating.This grating is obtained by preforming a polymer template comprised of periodic fringes,and then refilling it with a blue phase liquid crystal.Compared with conventional holographic polymer dispersed liquid crystal gratings,our grating can remarkably reduce its switching voltage from 200 V to 43 V while maintaining a sub-millisecond response time.The holographic polymer templated blue phase liquid crystal(HPTBPLC) grating is free from electrode patterning,thus leading to a lower cost and more flexible applications.
We theoretically study the light outcoupling efficiency of top-emitting organic light-emitting diode(OLED) with inverted structure and thin-film encapsulation.Thin-film optics is used to optimize the layer thickness to obtain high transmittance.Dipole mode is used to analyze the light outcoupling efficiency of the top-emitting OLED.Through this process,we can optimize the thin-film thickness with high transmittance and optimize the outcoupling efficiency of OLED.Compared with previous research,the current design method is a novel process.
陈超平李洪婧Yong ZhangChangbum MoonWoo Young KimChul Gyu Jhun
A multiplexed holographic display video has been achieved by using a passive azo-dye-doped liquid crystal(LC)cell.Holograms formed in this cell can be refreshed in the order of several milliseconds.By angular multiplexing technique,dynamically multiplexed holographic videos are realized.Moreover,the reconstructed RGB images are merged into a color image,which illustrates the possibility of a color holographic three-dimensional(3D)display by holographic multiplexing of the LC cell.
