| abstract |
(57) [Problem] To provide a method for forming a red filter film capable of reducing the problem of environmental pollution and simplifying the process. SOLUTION: A negative photoresist containing a compound represented by the following chemical formula 1 is applied to a panel on which a black matrix pattern is formed to form a photoresist layer, and then, a predetermined region is exposed; Coating and drying the red pigment composition on the photoresist layer, and then developing the red pigment composition. Embedded image However, in the chemical formula 1, l: m: n is 1.0-4. 5: 70.0-98.0: 1.0-20.0. |