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Method of and system for simulating a light-emitting device

  • US 7,676,354 B2
  • Filed: 08/13/2008
  • Issued: 03/09/2010
  • Est. Priority Date: 11/30/2006
  • Status: Expired due to Fees
First Claim
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1. A method of simulating an optical performance of an organic electroluminescence device executed by a computer device, comprising:

  • calculating, in the computer device, a concentration distribution of carriers to be supplied from an anode and a cathode of the organic electroluminescence device wherein the organic electroluminescence device includes an optical material comprising a plurality of optical material layers;

    calculating a carrier recombination rate as an exciton formation rate in the computer device based on positions of excitons within the organic electroluminescence device;

    reading stored optical data from the computer device that provides an optical characteristic of each optical material layer including an emission layer of the organic electroluminescence device;

    calculating from the read optical data, a total emission power factor defined as a function of position coordinates of power of excitons within the organic electroluminescence device, which are deactivated due to light radiation;

    calculating from the read optical data color space data for calculating a photometric quantity defined as a function of a position coordinate of an emitted light of excitons;

    calculating a total deactivation rate factor of excitons including a loss due to a nonradiative transition process using the total emission power factor and the excitation formation rate;

    summing a light extraction efficiency and a spectral emission intensity of excitons over a wavelength region associated with the optical material of the organic electroluminescence device;

    calculating from the read optical data, a space profile of a concentration of excitons for the organic electroluminescence device; and

    simulating an optical performance of the organic electroluminescence device by calculating a light-emitting characteristic and a quantum efficiency emission of excitons to be formed by the carrier recombination rate, by using the radiation deactivation rate, the summed light extraction efficiency and spectral emission intensity, and the concentration of excitons and storing the calculated light-emitting characteristic and the quantum efficiency emission of excitons to be formed by the carrier recombination rate.

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