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Synthesis and Physical Properties of New Violet Color Filter Dye for Image Sensors
1Department of Chemical Engineering, Kyung Hee University, Suwon 17104, Republic of Korea.
Abstract:
New violet colorant, XPDIA was synthesized by using Acid Red 52 to develop a high-performance image sensor. Solubility of XPDIA was more than 5 wt% in PGMEA which is the main solvent in the color filter preparation process. △Eab value of XPDIA showed a very low color difference of 2.17 after thermal treatment. In solvent resistance, transmittance was not changed and △Eab showed a low color difference of 1.55 before and after solvent dipping. As a result of the migration test, there was no change at all after dipping in the PGMEA transmittance spectrum. The newly synthesized violet colorant, XPDIA exhibited excellent thermal-chemical stability, and good solubility and it can be applied to image sensor color filter application.
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