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This work proposes a new LTPS gate driver circuit that can generate the simultaneous or progressive output waveforms in two periods. The falling and rising times are below 0.85 µs and 0.53 µs. Thus, the proposed circuit can be applied to high‐resolution AMOLED displays with SE driving method. [ABSTRACT FROM AUTHOR]

This work presents a new pixel circuit based on low temperature polysilicon thin-film transistor (LTPS-TFT) for active-matrix organic light-emitting diode (AMOLED) displays. This circuit compensates for variations of threshold voltage (VTH) and mobility of TFTs and utilizes the parallel addressing scheme to extend the compensation time for ensuring the feasibility of application for high resolution displays. Based on the simulation results, the relative current error rates of proposed driving scheme are all lower than 2.1% for 0.5V VTH variations of TFTs and are all lower than 2.5% for 30% mobility variations of TFTs, showing effective compensation for variations of threshold voltage and mobility of TFTs. [ABSTRACT FROM AUTHOR]

This work proposes a novel pixel circuit based on amorphous indium-gallium-zinc-oxide thin-film transistors (a-IGZO TFTs) for blue-phase liquid crystal displays (BPLCDs) with the in-plane switching (IPS) mode. The proposed pixel circuit provides a charging current as a constant current source to produce a wide operating voltage range for maximum transmittance of the BPLCs. Based on the simulation results, the proposed pixel circuit supplies a maximum output voltage of 30.14 V with an input voltage swing of 0 V to 9 V generated by the practical source driver integrated circuits (ICs), effectively compensating for the insufficient driving voltage of IPS BPLCDs. [ABSTRACT FROM AUTHOR]

This work presents a simple pixel circuit that utilizes two low-temperature polycrystalline-silicon thin-film transistors (LTPS TFTs) and one capacitor for active-matrix organic light-emitting diode (AMOLED) displays with voltage-programmed method. According to simulation results under 120 Hz frame rate and Full-HD resolution, the relative current error rates with ±0.5 V threshold voltage variation of the driving TFT are less than 3.4% over entire range of data voltages. Therefore, the proposed pixel circuit effectively compensates for threshold voltage variation of the driving TFT, and it can be applied to small-sized and high-resolution displays. [ABSTRACT FROM AUTHOR]

This work presents a new pixel circuit designed on glass by using hydrogenated amorphous silicon (a-Si:H) technology for polymer-stabilized blue-phase liquid crystal (BPLC) display with vertical field switching (VFS) mode. In the VFS mode, the driving voltage of BP-LC can be reduced, moreover, the hysteresis and residual birefringence are effectively suppressed as well. From the simulation results, the average error rate of storage voltage in pixel circuit is below 5.14% while operating frequency is 180 Hz. [ABSTRACT FROM AUTHOR]

This work presents a new pixel circuit using amorphous indium gallium zinc oxide thin-film transistors (a-IGZO TFTs) for three-dimensional (3D) active-matrix organic light-emitting diode (AMOLED) displays. Based on the simulation results, the proposed driving scheme successfully compensates for the luminance drop as the OLED degrades. [ABSTRACT FROM AUTHOR]