Method of printing a color filter

US5701815A · kind A · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Peter L. Bocko · Corning, US
• Bernard Eid · Corning, US
• Ronald E. Johnson · Tioga, US
• William Edward Lock · Horseheads, US
• Robert D. Shoup · Penn Yan, US
• Jean-Pierre Themont · Fontainebleau, FR

Key dates

• Filing date: Jan 25, 1996
• Grant date: Dec 30, 1997
• Expiry date: Jan 25, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/133516
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to methods and apparatus useful for making color filters for liquid crystal display panels. A multicolored ink pattern is deposited to a substrate while in a deformable state, flattened during the deposition process, and the deformed, more uniform shape of the printed dot is thereafter retained, preferably by curing during deposition. The transfer layer is preferably formed on a collector roll. A plurality of colored ink patterns is then transferred to the collector roll, preferably from a single pattern roll having multiple patterns thereon, to form the multicolor image that will become the color filter. This multicolored image is then transferred to the substrate.