Color variable bipolar/ac light-emitting devices

Details Color variable bipolar/ac light-emitting devices Color variable bipolar/ac light-emitting devices

H - Electricity

05

B

H05B 33/14 (2006.01) C09K 11/06 (2006.01) H01L 51/50 (2006.01) H01L 51/30 (2006.01)

Patent

CA 2279330

The present invention includes color-variable light emitting devices which are capable of generating two independent colors, even at room temperature. The devices comprise a layer of at least one active electroluminescent polymer. This electroluminescent polymer may be accompanied by one or two redox-mediating polymer layers. The devices comprise emissive polymer layers (5), redox polymer layer, partially transparent or protective substrate (2), and electrodes (1,3).

La présente invention concerne des dispositifs électroluminescents à couleur variable, capables de produire deux couleurs différentes, et ce même à température ambiante. Ces dispositifs comprennent une couche d'au moins un polymère électroluminescent actif. Ce polymère électroluminescent peut être accompagné d'une ou deux couches polymères intermédiaires d'oxydoréduction. Ces dispositifs comprennent enfin des couches polymères émissives (5), une couche polymère d'oxydoréduction, un substrat protecteur ou partiellement transparent (2), et des électrodes (1, 3).

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