USPatentGranted
B2

Vertically aligned mode liquid crystal display

Granted 17 Feb 2009 · 4 office actions

Current assignee: Samsung Display · originally Samsung Electronics

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Inventors: Eun-Hee Han, Jang-Kun Song, Seung-Beom Park, Jae-Jin Lyu +1 · Examiner: James A Dudek · AU 2871 · TC 2800

Life of the patent

14 dated events
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Abstract

Liquid crystal material is interposed between an upper panel and a lower panel. The lower panel includes signal transmitting wires including a gate wire and a data wire, thin film transistors connected to the signal transmitting wires and pixel electrodes connected to the thin film transistors, and the upper panel includes color filters, a black matrix and a common electrode. The pixel electrodes and the common electrode have apertures partitioning the pixel electrode into several domains. In addition, the director of liquid crystal molecules contained in the liquid crystal material is aligned perpendicular to the upper panel and the lower panel in absence of electric field between the pixel electrodes and the common electrode. The dielectric anisotropy of the liquid crystal material has a value ranging −4.0 to −5.5.

Claims

7 · 1 independent · depth 3
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7 granted claims

Classifications

2 codes
IPC · International Patent Classification
Section G — Physics
  • G02F1/1337
USPC · US Patent Classification
349/130

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File wrapper

⤢ drag to zoomJul 2005Jan 2006Jul 2006Jan 2007Jul 2007Jan 2008Jul 2008Jan 2009USPTOApplicantRestriction requirementResponse after non-finalResponse after finalRequest for continued examination
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Pendency
3.7 y
1,357 days filing → grant
Office actions
2
after a restriction
Responses
3
2 RCE
Examiner
James A Dudek
art unit 2871 · TC 2800
Citations: 7 back · 0 forward

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Term & fees

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Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20050275763 A115 Dec 2005

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Citations

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