| abstract |
A photosensitive thermosetting composition capable of forming a protective layer with good image reproducibility is provided. An ethylenically unsaturated compound and / or a compound having an epoxy group in the molecule is contained as a thermal cross-linking agent, and further contains a photopolymerization initiator, and is applied to a glass substrate 2 plane with a film thickness of 2 μm. Irradiate ultraviolet light with a wavelength of 365 nm at 100 mJ / cm 2 through a mask having a fine line pattern with a line width of 25 μm, perform shower development at 23 ° C. and water pressure of 0.25 MPa, and further heat treatment at 230 ° C. for 30 minutes The taper angle formed by the convex side surface of the fine line image 12 formed in a convex shape on the glass substrate 2 with respect to the plane of the glass substrate 2 is 40 ° or more. Thermosetting composition. [Selection] Figure 1 |