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Sub-pixel structure in transflective color liquid crystal display

  • US 7,564,530 B2
  • Filed: 12/29/2005
  • Issued: 07/21/2009
  • Est. Priority Date: 12/29/2005
  • Status: Active Grant
First Claim
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1. A transflective liquid crystal display having a plurality of pixels, comprising:

  • a first substrate having a common electrode;

    a second substrate; and

    a liquid crystal layer disposed between the first and second substrate, the liquid crystal layer comprising a plurality of layer segments associated with a plurality of pixels, wherein at least some of the pixels comprise a plurality of sub-pixels and wherein at least three of the sub-pixels are color sub-pixels for providing three different colors in the liquid crystal display and at least one of the sub-pixels is a fourth sub-pixel for providing a fourth color different from said three colors, and wherein each of the color sub-pixels comprises a transmission area having a transmissive electrode disposed on the second substrate and a reflection area having a reflective electrode disposed on the second substrate, and the fourth sub-pixel comprises a further reflective electrode disposed on the second substrate, wherein the fourth sub-pixel has a reflection area associated with the further reflective electrode, said fourth sub-pixel further comprises a transmission area having a further transmissive electrode disposed on the second substrate.

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