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Patent Searching and Data


Title:
LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2001142095
Kind Code:
A
Abstract:

To prevent display abnormality from occurring due to parasitic capacitance, and also to form a contact hole highly reliable in electric connection, in a CF on TFT structure using the wiring on a TFT substrate also as BM for a high aperture ratio and high definition.

Parasitic capacitance between a wiring metallic layer such as source wiring 1 and gate wiring 2 and an pixel electrode 6 is reduced by forming a transparent resin layer on a CF layer 9 so that a total thickness of the CF layer and the transparent resin layer is 3 μm to 6 μm. Electric connection at the contact hole is secured by making the contact hole 7b of the transparent resin layer larger than the contact hole 7b of the CF layer by 3μm or more, and making the cross-section of the contact hole 7 in a two-step slope form.


Inventors:
KATAUE MASAYUKI
Application Number:
JP32475199A
Publication Date:
May 25, 2001
Filing Date:
November 15, 1999
Export Citation:
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Assignee:
SHARP KK
International Classes:
G02F1/1335; G02F1/136; G02F1/1365; G02F1/1368; (IPC1-7): G02F1/1365
Attorney, Agent or Firm:
Shusaku Yamamoto