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Continuous domain in-plane switching liquid crystal display
   
Document Number
US Patent 7268848
Issued Date
September 11, 2007
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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, 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:
9
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Owner
Published
September 11, 2007
Application Number
10/966,213
Filed
October 15, 2004
US Classification
349/141  
Int'l Classification
G02F   1/1343   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
Oct 15, 2003 [TW] 92128502 A
USPTO Field of Search
349/141  
Related Patents
7443476 - Continuous domain vertical alignment liquid crystal display - Owned by Innolux Display Corp. (Miao-Li County,TW)

A continuous domain vertical alignment liquid crystal display (2) has a first substrate (21), a second substrate (22), and liquid crystal molecules (26) interposed between the substrates. A plurality of curved first protrusions (211) and a plurality of curved second protrusions (221) are disposed at insides of the substrates respectively. When an electric field is applied between the substrates, the liquid crystal molecules tend to be oriented parallel to the substrates. In addition, the curved protrusions affect the orientations of the liquid crystal molecules, such that the liquid crystal molecules are directed to incline in various directions in smooth continuums. The visual effect of the continuous domain vertical alignment liquid crystal display is the sum of multiple smooth continuous domains. Thus the continuous domain vertical alignment liquid crystal display provides a more even display performance at various different viewing angles.

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