DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE

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DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE

This abstract first appeared for US patent application 18884253 titled 'DISPLAY DEVICE AND METHOD OF MANUFACTURING DISPLAY DEVICE

Original Abstract Submitted

A display device includes an oxide semiconductor layer including a polycrystalline structure, a gate insulating layer provided on the oxide semiconductor layer, a gate electrode opposite to the oxide semiconductor layer on the gate insulating layer, a first silicon nitride layer provided in contact with the gate electrode, a source wiring provided in contact with the first silicon nitride layer and electrically connected to the oxide semiconductor layer, a second silicon nitride layer provided in contact with the source wiring and the first silicon nitride layer, a first transparent conductive layer provided in contact with the second silicon nitride layer and electrically connected to the oxide semiconductor layer, and a third silicon nitride layer provided in contact with the first transparent conductive layer and the second silicon nitride layer, wherein a channel length of the gate electrode is 2.0 μm or less.