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Display device producing display by changing shape of refractive index ellipsoid of medium by applying electric field to medium

  • US 7,724,335 B2
  • Filed: 01/19/2005
  • Issued: 05/25/2010
  • Est. Priority Date: 01/20/2004
  • Status: Expired due to Fees
First Claim
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1. A display element, comprising:

  • a pair of substrates, at least one of which is transparent;

    a medium between the substrates, wherein optical anisotropy magnitude of the medium is changeable by and according to an electric field applied thereon;

    at least one electrode pair on a principal plane of one of the substrates in a given pixel region, the at least one electrode pair including a first and a second electrode interleaved with each other for applying, on the medium, the electric field substantially parallel to the one of the substrates, wherein the electric field substantially parallel to the one of the substrates is formed by the first and second electrodes; and

    a transparent third electrode provided on another principal plane of the substrates than the principal plane on which the at least one electrode pair is provided, the third electrode being provided in a pattern in the pixel region where the first and second electrodes exist, in such a manner as to be between the first and second electrodes so that the third electrode does not overlap the first and second electrodes.

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