发明授权
- 专利标题: Active matrix substrate and display unit provided with it
- 专利标题(中): 提供有源矩阵基板和显示单元
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申请号: US12946000申请日: 2010-11-15
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公开(公告)号: US08405808B2公开(公告)日: 2013-03-26
- 发明人: Wataru Nakamura , Atsushi Ban , Shoji Okazaki , Hiromitsu Katsui , Yoshihiro Okada
- 申请人: Wataru Nakamura , Atsushi Ban , Shoji Okazaki , Hiromitsu Katsui , Yoshihiro Okada
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Keating & Bennett, LLP
- 优先权: JP2004-243970 20040824; JP2005-235006 20050812
- 主分类号: G02F1/1333
- IPC分类号: G02F1/1333
摘要:
An active matrix substrate includes a substrate; scanning lines formed on the substrate; an insulating film covering the scanning lines; signal lines intersecting the scanning lines via the insulating film; switching elements formed on the substrate, each operating in response to a signal which is applied to the corresponding scanning line; and pixel electrodes each capable of being electrically connected to the corresponding signal line via the switching elements. The insulating film is a multilayer insulating film including a first insulating layer and a second insulating layer. The first insulating layer is formed of an insulating material containing an organic component, and the multilayer insulating film has a low-stack region in at least a portion of a region overlapping each switching element, the first insulating layer not being formed in the low-stack region. The active matrix substrate reduces the capacitance formed at each intersection between a scanning line and a signal line, without causing an increase in the wiring resistance or a degradation of the driving ability of switching elements.