A Fringe Field Switching Liquid Crystal Display With Fast Grayscale Response Time

Abstract

A fast-response fringe-field switching (FFS) liquid crystal display using patterned common electrodes is proposed. By applying a restoring pulse voltage on common electrodes, the relaxation process of liquid crystals is expedited by the electric field. The average gray-to-gray decay time is over sevenfold faster compared with the conventional FFS mode.Index Terms-Fast response, fringe field switching (FFS), liquid crystal display (LCD).

A simple method to measure the twist elastic constant of a nematic liquid crystal

“…[1][2][3][4][5][6][7][8][9] In these LCDs, the electric field-induced LC reorientation takes place primarily in the horizontal direction. Therefore, their electro-optical characteristics, such as operation voltage and response time, are mainly governed by the twist elastic constant (K 22 ) instead of splay (K 11 ) or bend (K 33 ) elastic constants.…”

P-145: A New Single-Cell Measurement Method for Determining the Twist Elastic Constant of Liquid Crystals

“…Recently, extensive efforts have been devoted to achieve faster response time for IPS and FFS LCDs, including device designs [22][23][24] and material development. Among them, lowering visco-elastic coefficient J 1 /K 22 is a very effective method from the material side.…”

P‐140: New Nematic LCD with Submillisecond Response Time

“…For example, to operate a polymer-stabilized blue phase LCD, 3-4 thin-film transistors (TFTs) per pixel are required to compensate the slow charging time [12]. Another option to get sub-millisecond response is the so-called triode structure [13,14]. It uses an erasing field to accelerate the LC relaxation process.…”