Invention Grant
- Patent Title: Active matrix substrate and active matrix display device
- Patent Title (中): 有源矩阵基板和有源矩阵显示装置
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Application No.: US13383218Application Date: 2010-04-02
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Publication No.: US08686422B2Publication Date: 2014-04-01
- Inventor: Masahiro Yoshida , Isao Ogasawara , Shinya Tanaka
- Applicant: Masahiro Yoshida , Isao Ogasawara , Shinya Tanaka
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2009-167879 20090716
- International Application: PCT/JP2010/002460 WO 20100402
- International Announcement: WO2011/007479 WO 20110120
- Main IPC: H01L29/786
- IPC: H01L29/786 ; G09G3/36 ; G02F1/1345 ; H01L27/32
Abstract:
A stem wiring (13a) having a broad line width is formed above branch wirings (13b) having a narrow line width. In a region where the stem wiring (13a) is connected to the branch wiring (13b), the stem wiring (13a) overlaps with the branch wiring (13b) via a gate insulating film when seen in a plan view, a contact hole is provided in the gate insulating film so as to uncover the branch wiring (13b), and the stem wiring (13a) is electrically connected to the branch wiring (13b) via a connecting conductor formed in the contact hole. Consequently, a TFT array substrate can be achieved, in which a disconnection failure or an abnormal line width is reduced without enlarging the dimension of a driving circuit region.
Public/Granted literature
- US20120112197A1 ACTIVE MATRIX SUBSTRATE AND ACTIVE MATRIX DISPLAY DEVICE Public/Granted day:2012-05-10
Information query
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