Display device wherein a value of a channel width divided by a channel length of one TFT is greater than another TFT, and a gap between a pixel electrode and a counter electrode is wider for the one TFT than the another TFT

A display device comprising:

• a display panel which, over a surface of an insulating substrate, includes:
• a plurality of scanning signal lines;
• a plurality of picture signal lines;
• a plurality of TFTs;
• a plurality of pixel electrodes coupled to sources of the TFTs;
• and
• a counter electrode,
• wherein the TFTs and the pixel electrodes are arranged in a matrix in a projection direction of the scanning signal lines and a projection direction of the picture signal lines, and the pixel electrodes and the counter electrode are arranged over the same surface of an insulating layer overlying the surface of the insulating substrate,
• wherein, when a value of a channel width divided by a channel length of one TFT among the TFTs is greater than a value of a channel width divided by a channel length of another TFT among the TFTs, a gap between a pixel electrode coupled to the source of the one TFT and the counter electrode is set to be wider than a gap between a pixel electrode coupled to the source of the another TFT and the counter electrode, and
• wherein a gate insulating film in the one TFT is thinner than a gate insulating film in the another TFT.