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Pixel structure of a sunlight readable display

  • US 6,714,268 B2
  • Filed: 06/13/2002
  • Issued: 03/30/2004
  • Est. Priority Date: 04/16/2002
  • Status: Expired due to Term
First Claim
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1. A pixel structure of a sunlight readable display, comprising:

  • a first thin film transistor comprising a source electrode, a drain electrode and a gate electrode;

    a second thin film transistor comprising a source electrode, a drain electrode and a gate electrode, said gate electrode of said second thin film transistor being electrically connected to said drain electrode of said first thin film transistor;

    a first storage capacitor having one end electrically connected to said gate electrode of said second thin film transistor;

    a third thin film transistor comprising a source electrode, a drain electrode and a gate electrode, said drain electrode of said third thin film transistor being electrically connected to said drain electrode of said first thin film transistor;

    a second storage capacitor having one end electrically connected to said source electrode of said third thin film transistor and another end connected to a common bus, said second storage capacitor being a liquid crystal capacitor; and

    an organic light emitting diode display device electrically connected to said drain electrode of said second thin film transistor, said organic light emitting diode display device comprising a half organic light emitting diode display structure and a half reflective liquid crystal display structure;

    wherein said display is in an organic light emitting diode mode when said third thin film transistor is at an OFF state, and said display is in a liquid crystal mode when said third thin film transistor is at an ON state.

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