Development of dimeric triarylmethine derivatives with improved thermal and photo stability for color filters

作者：Kong Nam Sik; Jung Hyocheol; Kim Beomjin; Lee Chan Kyu; Kong Hoyoul; Jun Kun; Kim Jin Chul; Noh Seung Man; Cheong In Woo^*; Park Jongwook^*; Il Park Young^*

来源：Dyes and Pigments, 2017, 144: 242-248.

DOI：10.1016/j.dyepig.2017.05.035

• Triarylmethine
• Blue dye
• Color filter
• Thermal stability
• Photo stability
• Victoria Blue BO

Five novel triarymethine derivatives containing a two chromophore moiety within the molecule have been designed, synthesized and investigated as potential color filter dyes. These new "dimer-type" triarylmethines showed increased photostability and thermal stability compared to the Victoria Blue BO unit and notably manipulation of the dye counter ion also led to increased thermal stability. To evaluate the dyes in color filters, filters were fabricated and the photo- and thermo-stability was determined after heat treatment (230 degrees C for 30 min). The fabricated color filters showed approximately 80% transmittance at 450 nm and the Delta E-ab values were in the range 3.03-9.26. These results indicate that the synthesized dimer-type triarylmethine derivatives have the potential for application as color filters for blue dyes.

• 出版日期2017-9