光硬化性インキと凹版印刷を用いたカラーフィルタ製造システム

抄録

By using a photohardening printing ink and a glass intaglio plate, the color filter printing process was constructed, which resulted in complete transfer of ink from intaglio plate to blanket by exposing the photohardening ink in semi-hardened state at the air surface of ink and moreover in hardened state inside the ink.
The surafce of glass intaglio plate was coated by a modified silicone resin, so the ink filled by doctor in the intaglio plate could be completely transfered from the plate to blanket, though a incomplete ink transfer has occured in a former conventional printing process. The obtained pattterns of color filter have sharper edge of line and the flatter upper surface of ink pattern than a Quonset hat shape of printed pattern by a former conventional printing method.