Abstract
We have developed a high-definition in-cell (HDI) touch panel technology that uses a parallel scanning method. This technology can be incorporated into various TFT backplanes including LTPS TFT and IGZO TFT. We have developed 5.7” WQHD LTPS LCD and 4.95” FHD IGZO LCD, both of which are integrated in-cell touch panels. A Nega-type liquid crystal (LC) material for IPS mode was used. The parallel scanning method allows high-definition in-cell touch panel LCDs with good touch panel performance, with SNR over 48.5dB.
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