Liquid crystal display and manufacturing method therefor

• Main Authors: Nomura, Shinichiro, Kato, Takayuki, Atarashiya, Takao, Sugiyama, Hiroki, Morita, Satoshi
• Format: Patent
• Language: English
• Published: 17.11.2009

a a b aA liquid crystal display of the invention has a transparent substrate on which are provided multiple signal lines , scan lines and auxiliary capacity lines , plus TFTs and pixel electrodes that are electrically coupled to the TFTs' drain electrodes D. The auxiliary capacity lines are formed with an Al-Nd alloy layer coated with a layer of molybdenum. Each pixel region, except for the auxiliary capacity lower electrode on the auxiliary capacity line , is coated over by a first insulating film and by a second insulating film that is thinner than the first insulating film . Further, the auxiliary capacity lower electrodes are coated over by the second insulating film , and auxiliary capacity upper electrodes are provided on the surface of the second insulating film at the auxiliary capacity lower electrodes . Thanks to such structure, a small-pixel-area or high-definition liquid crystal display, and manufacturing method therefor, can be provided whereby short circuits in the regions forming the auxiliary capacity are few, the auxiliary capacity is large, and display irregularities such as crosstalk or flicker are satisfactorily curbed.