An optimized blue-phase liquid crystal (BPLC) with a moderate dielectric constant, manageable capacitor charging time, high voltage holding ratio, and submillisecond gray-to-gray response time at room temperature is developed. Using protruded triangular IPS electrodes, the operation voltage can be reduced to 15V while keeping ~74% transmittance. Such a BPLC enables single-TFT addressing and 240-Hz operation. Potential application for color-sequential displays is emphasized. Our new approaches have solved the most critical charging time issue and would accelerate the emergence of the long-awaited blue-phase LCDs. The primetime for BPLCD is around the corner.

The operating voltage of PS‐BPLCs could be reduced by using host nematic liquid crystals with extremely large ΔnXΔε One of the PS‐BPLCs showed 23V of Vmax and 800 of contrast ratio using IPS electrode with 10μm of spaces, which should be driven by normal driver if electrode design is optimized On the other hands, such PS‐BPLCs with large Δε also took a long charging time to be charged enough as a side effect. This charging problem has to be solved by improvement of materials, devices and driving method so that low voltage PS‐BPLCs will be widely used

No abstract

An optimized blue‐phase liquid crystal (BPLC) with a moderate dielectric constant, manageable capacitor charging time, high voltage holding ratio, and submillisecond gray‐to‐gray response time at room temperature is developed. Using protruded triangular IPS electrodes, the operation voltage can be reduced to 15V while keeping ~74% transmittance. Such a BPLC enables single‐TFT addressing and 240‐Hz operation. Potential application for color‐sequential displays is emphasized. Our new approaches have solved the most critical charging time issue and would accelerate the emergence of the long‐awaited blue‐phase LCDs. The primetime for BPLCD is around the corner.

No abstract