In this paper, an integrated hydrogenated amorphous silicon (a‐Si: H) thin‐film transistor (TFT) gate driver circuit design with high reliability and the narrow border for middle size liquid crystal display is demonstrated. The circuit design with two sets of the low‐level holding unit can increase the reliability and suppress the threshold voltage (Vth) shift of TFT in the circuit. In addition, the low‐level holding unit is floating in the Q node pre‐charge period, ensuring that the low‐level holding unit can be efficiently turn off during the selected stage working. As a result, the circuit is very stable even at the TFT Vth shift of 3V in the high‐temperature operation.

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A systematic research of image sticking (IS) in a fringe field switching liquid crystal displays is demonstrated. After the IS test of mosaic pattern and switching to the mid-grey level image, the root mean square voltage (Vrms) difference between the black and white block should be controlled under the 1 mV to avoid the phenomenon of image sticking detected by the human eye. A detailed analysis of voltage calculation and how to decrease the difference ofVrms are presented. Author Keywords image sticking; fringe field switching; flexoelectric effect; residual DC voltage; P-144 / J.-C. Ke SID 2018 DIGEST • 1707 ISSN 0097-996X/18/4703-1707-$1.00

Optically isotropic liquid crystal (LC) mixture such as blue-phase LC and nanostructured LC composites exhibit the advantages of fast response time, high contrast ratio and wide-viewing angle due to the induced birefringence along the horizontal electric field. Utilizing this mixture, a novel single cell gap in-plane switching-type polymer-stabilized blue-phase transflective liquid crystal display by embedding the nanowire grid polarizer as a polarization-dependent reflective polarizer in the R region is proposed. This device can be used as a normal black mode without any quarter-wave plate or patterned in-cell phase retarder. Moreover, the transmittance is identical to the reflectance so that it will be suitable for single gamma driving. Detailed electro-optic performances, such as voltage-dependent light efficiency and viewing angle of the proposed device configuration, are investigated.