We have developed the UHD 4K*2K resolution large‐size oxide TFT‐LCD TV with ADSDS (Advanced Super Dimension Switch) technology. The pixel aperture ratio and panel transmission could be increased and the voltage shift could be reduced by the new pixel design and process optimization. Meanwhile, the mask reduction process is suitable for large‐scale production line.

We have developed 10‐inch 300PPI and 65‐inch ultra high‐definition FFS LCD using amorphous In‐Ga‐Zn‐O(IGZO) TFT. After improvement of TFT's process and structure, the TFT performance is good enough for TFT‐LCD. In this report, we discuss our IGZO TFT process, uniformity and reliability.

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