A 6.94-in. WVGA poly-Si TFT-LCD with integrated driver including sequential analog sampling circuits

By the integrated drive circuitry with laser crystallization process, the gate and data driver circuits required for full color WVGA(800 × RGB × 480) LCD are integrated on panel. The integrated driver comprises a sequential analog sampling data driver and a dual logic gate scanner for redundancy. The characteristics and uniformities of the LTPS (low temperature polycrystalline silicon) devices have been remarkably enhanced by applying stacked SiO2 and SiNx buffer layers and surface treatment.