Invention Grant
- Patent Title: Liquid crystal display device having rectangular-shaped pixel electrodes overlapping with comb-shaped counter electrodes in plan view
- Patent Title (中): 液晶显示装置,在平面图中具有与梳状对置电极重叠的矩形像素电极
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Application No.: US13067501Application Date: 2011-06-06
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Publication No.: US08134673B2Publication Date: 2012-03-13
- Inventor: Takahiro Ochiai , Tohru Sasaki , Hirotaka Imayama , Masateru Morimoto
- Applicant: Takahiro Ochiai , Tohru Sasaki , Hirotaka Imayama , Masateru Morimoto
- Applicant Address: JP Chiba-ken JP Hyogo-ken
- Assignee: Hitachi Displays, Ltd.,Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee: Hitachi Displays, Ltd.,Panasonic Liquid Crystal Display Co., Ltd.
- Current Assignee Address: JP Chiba-ken JP Hyogo-ken
- Agency: Stites & Harbison, PLLC
- Agent Juan Carlos A. Marquez, Esq
- Priority: JP2005-278161 20050926
- Main IPC: G02F1/1343
- IPC: G02F1/1343

Abstract:
The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.
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