Preparation And Research On Display Volume Used For Solid-state Volumetric3D Display System

As a new type of stereo display technology, the solid-state volumetric true3Ddisplays don’t need to wear3D glasses, and can be provided with psychological depthand physical depth, which can offer clear, stable and flicker-free stereo images. Thedevices were prepared by polymer-stabilized cholesteric textures with fast response,wide view angle, low power consumption, high contrast, simple structure and low cost,which are suitable for true3D displays.In this paper, PSCT samples were prepared by means of polymerization inducedphase separation. The influence of curing frequency, curing waveform, curing time andmonomer structures on polymer network morphologies and electro-optical properties ofPSCT were studied by SEM and liquid crystal composite parameter tester. It turned outthat:1. With high curing frequency or long curing time, the compact network structurecan be formed, which results in low threshold (saturation) voltage and long responsetime.2. As the curing waveform changes from square wave to triangular wave, thepolymer network morphology becomes denser, resulting in higher driving voltage,faster response speed, and lower hysteresis effect.3. With the densest polymer networkformed by the monomer LCM, the lowest power consumption, fastest decay time, andlongest hysteresis width can be observed.In addition, the preparation process of19inch light shutter, including joiningprocess and craft of filling liquid crystals, has been successfullydeveloped, which can beused for the preparation of large light shutters applied to display volume. And weoptimized the process of preparation and made a new type of fast-response PSCT lightshutter. Under the ambient temperature of28oC, the electro-optical property, thermalstability, reliability, and repeatability have been characterized. It was demonstrated: theresponse time of the device was lower than0.8ms, and the field-on transmittancereaches86.2%. Goodthermal stability can be observed when the device works for a longtime. When the driving voltage is higher than100V and the working temperature isbetween20oC and40oC, the device is more reliable. Furthermore, the device shows polarization independence and excellent repeatability. And the maximum view angle ofdisplay volume reaches50o, which meets the demand of true3D display system.