LIQUID CRYSTAL DISPLAY DEVICE

摘要

PURPOSE:To suppress the generation of a linear display defect by connecting a protection transistor(TR) film by a silicon film which is formed at the same time with a silicon film. CONSTITUTION:A protection TR for electrostatic breakdown prevention is provided nearby the intersection of a lower layer scanning line 1 and an upper layer common conductor 6 between a display TFT array part 7 and a driving IC connection terminal part 8. The silicon film 3 is so patterned as to connect not only the upper part of a gate electrode 2 as the laying area of the upper common conductor 6 and its periphery, but also a protection TR installed for each lower layer scanning line. Then the silicon films 3 of protection TRs on the right and left sides of the upper layer common conductor 6 are connected and further all protection TRs of the lower layer scanning line 1 are connected at right angles to the lower layer scanning line 1. Therefore, the laying area of the silicon film 3 and the capacity of a capacitor formed between the silicon film 3 and lower layer scanning line 1 are increased.