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OLED DISPLAY WITH IMPROVED ACTIVE MATRIX CIRCUITRY

  • US 20060197458A1
  • Filed: 03/01/2005
  • Published: 09/07/2006
  • Est. Priority Date: 03/01/2005
  • Status: Active Grant
First Claim
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1. An OLED display for producing a multicolor image, comprising:

  • a) a plurality of pixels including three different colored addressable gamut-pixels and a fourth addressable within-gamut-pixel, each pixel having a separately addressable organic light-emitting diode with first and second electrodes and one or more organic light emissive layers provided between the electrodes;

    b) active matrix circuitry including a separate power transistor for at least two of the three different colored addressable gamut-pixels for regulating current between a first and second voltage source through the organic light-emitting diode of the colored addressable gamut-pixel; and

    c) the active matrix circuitry including a power transistor for the fourth addressable within-gamut-pixel for regulating current between a third and fourth voltage source through the organic light-emitting diode of the fourth addressable within-gamut-pixel wherein at least three of the first, second, third, and fourth voltage sources provide different voltage levels.

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