US Patent 7593080 Liquid crystal display panel

Patent 7593080 was granted and assigned to AU Optronics on September, 2009 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

AU Optronics

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75930800

Patent Inventor Names

Wan-Hua Lu0

Jenn-Jia Su0

Ming-Feng Tien0

Ting-Jui Chang0

Date of Patent

September 22, 2009

Patent Application Number

117799060

Date Filed

July 19, 2007

Patent Primary Examiner

Patent abstract

The disclosed is a liquid crystal display panel having alignment protrusions with an appropriate optical density (OD) of about 0.3/μm to 3/μm, and preferably of about 0.8/μm to 1.3/μm. The invention solves problems such as light leakage in dark conditions caused by transparent alignment protrusions and mismatch caused by black alignment protrusions overlapping the alignment marks.

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