| abstract |
(57) [Problem] To provide a color-forming compound for an electroluminescent display element capable of realizing a large-area and a color electroluminescent display element and a method for producing the same. SOLUTION: The color-forming compound for an electroluminescent display element has a structure having an electron-donating functional group and an electron-withdrawing functional group bonded to a polymer main chain. Poly 3, which is a typical compound 6-N-alkylcarbazolyl cyanoterephthalidene is a process for producing N-alkylcarbazole, a process for converting it into N-alkyl-3,6-diformylcarbazole, a solution system containing 1,4-phenylenediacetonitrile And a polymerization method comprising the steps of: |