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In-plane switching liquid crystal display with wavy electrodes having varying trough lengths
   
Document Number
US Patent 7319502
Issued Date
January 15, 2008
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Abstract
A multi-domain IPS (in-plane switching) liquid crystal display (20) includes a first substrate (201), a second substrate (202), liquid crystal molecules (203) filled between the first and second substrates, and gate lines (211) and data lines (212) formed on the first substrate. The gate lines and data lines define pixel regions arranged in a matrix. Each pixel region includes pixel electrodes (233), common electrodes (243), and a TFT (thin film transistor) (220). The pixel electrodes and the common electrodes have a same curved shape with at least two different bend portions, and are uniformly spaced apart from each other. Therefore the electric field generated by them is a smooth continuum of multiple domains, and the visual performance at various different viewing angles is equally good. Because the pixel and common electrodes do not have sharp bends, disclination is avoided. Therefore the IPS liquid crystal display has a high contrast ratio.
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Number of Claims:
10
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Owner
Innolux Display Corp. (Chu-Nan, Miao-Li County,TW)
Published
January 15, 2008
Application Number
11/131,031
Filed
May 16, 2005
US Classification
349/141  
Int'l Classification
G02F   1/1343   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
May 14, 2004 [TW] 93113616 A
USPTO Field of Search
349/141  
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