P‐4.2: Study on Optical Performances of Transparent LCD with Dichroic Dye‐doped Liquid Crystal

Abstract

With the development of the Internet of Things, transparent display is playing an increasingly important role in people's lives. The most important optical index of transparent display is transmittance. Due to no need for polarizer, transparent liquid crystal display (TLCD) with dichroic dye‐doped can achieve very high transmittance. In this paper, optical performance and image quality improvement of TLCD with dye‐doped liquid crystal were studied. A new TN pixel design with common electrode of ITO instead of metal to form stored capacitance was used to achieve high aperture ratio (AR). And it was found that bright transmittance of NWSC is higher than that of NBSC due to high anchoring effect of PI to positive liquid crystal. In addition, the transmittance decreases gradually with increasing cell gap due to the increased light absorption by the long axis of dye molecules. The results showed that the TLCD with Dichroic Dye‐doped Liquid Crystal (DDLC) has a good display effect.