LIQUID CRYSTAL DISPLAY DEVICE HAVING ESD PROTECTION CIRCUIT AND METHOD FOR MANUFACTURING THE SAME

摘要

source electrode and a drain electrode on the silicon oxide film 31, each of which the ITO film 32, a transparent electrode , has the metal film 33 formed on the ITO film 32 . Without any source electrode and a drain electrode region, the gap 35 is formed between the source electrode and the drain electrode. Silicon nitride film 34 ( gate insulating film) is formed on the source electrode and the drain electrode and the gap (35) . Silicon nitride film 34 has a relatively large first region having a thickness (D ₁ ) and a second region with a relatively small thickness (D ₂ ). Region of the silicon nitride film (34) (D ₂ ) is provided with a MIM structure . Gate bus layer 36 is formed on the silicon nitride film 34 . MIM structure is formed in the second regions (D ₂ ).