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6‐bit gamma compensated digital data driver using LTPS TFTs was integrated in AMOLED panel. We have applied conventional register ladder D/A converter circuits with 9 points reference voltage for each color. We have obtained both good gray scale and good white balance by optimizing the reference voltage. DC/DC converter and serial to parallel converter have also been integrated by TFT. The number of pixels is 768 × 228 dots. The width of the data driver designed by 2micron rule is only 2.6mm.

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Effects of forming gas annealing (FGA) were investigated on ferroelectric Bi3.25La0.75Ti3O12 (BLT) thin films fabricated by a chemical solution deposition. With the FGA up to 350 °C, the Pt/BLT/Pt capacitors showed good ferroelectric characteristics without significant degradation. As the FGA temperature was increased, a decomposition of the BLT powder sample was observed by using thermogravimetric analysis. By comparing the time-dependent weight loss of BLT with that of Bi4Ti3O12 during FGA, La doping was found to significantly impede the decomposition rate. The decomposition, especially in the (Bi2O2)2+ layers, was discussed as a hydrogen-induced degradation mechanism in the Bi-layered perovskite ferroelectrics.