Invention Grant
- Patent Title: TFT mask reduction
- Patent Title (中): TFT面膜减少
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Application No.: US13610712Application Date: 2012-09-11
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Publication No.: US08801948B2Publication Date: 2014-08-12
- Inventor: Ming-Chin Hung , Youngbae Park , Chun-Yao Huang , Shih Chang Chang , John Z. Zhong
- Applicant: Ming-Chin Hung , Youngbae Park , Chun-Yao Huang , Shih Chang Chang , John Z. Zhong
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Fletcher Yoder PC
- Main IPC: B44C1/22
- IPC: B44C1/22 ; C03C15/00 ; C03C25/68 ; C23F1/00

Abstract:
Embodiments of the present disclosure relate to display devices and methods for manufacturing display devices. Specifically, embodiments of the present disclosure employ a halftone photoresist layer useful for reducing a number of masks needed to manufacture TFT backplane (e.g., thin-film transistors (TFTs) with fringe-field shifting). The halftone photoresist layer defines two areas, one defining an etching area for a first layer (e.g., a common voltage layer) and the other defining an etching area for a second layer (e.g., an organic passivation layer).
Public/Granted literature
- US20140004704A1 TFT Mask Reduction Public/Granted day:2014-01-02
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