| 摘要 |
<p>Disclosed is a method for manufacturing, with low cost and high efficiency, a liquid crystal display device having almost no liquid crystal contamination. The method has: a step (1) wherein a frame-shaped sealing agent layer is formed on one substrate using a photo-curable sealing agent containing a curable resin and a photopolymerization initiator; a step (2) wherein a liquid crystal material containing a polymerizable material and a photopolymerization initiator is dropped to a region surrounded by the sealing agent layer; a step (3) wherein said substrate and the other substrate are bonded to each other with the sealing agent therebetween, and the sealing agent is photocured by radiating light having a wavelength that photocures the sealing agent to the bonded substrates; a step (4) wherein the liquid crystal material is photopolymerized by radiating light having a wavelength that photopolymerizes the liquid crystal material. The wavelength of the light that photocures the sealing agent is further on the long wavelength side than the wavelength of the light that photopolymerizes the liquid crystal material, and the light having the wavelength that photocures the sealing agent in the step (3) is radiated by means of a light radiation apparatus having an LED element and a filter. The LED element has an emission peak wavelength in a wavelength region wherein the sealing agent is photocured, and is outside of the wavelength region wherein the liquid crystal material is photopolymerized. The filter cuts, among the light radiated from the LED element, the light, which is in a region further on the short wavelength side than the emission peak wavelength and overlaps the wavelength that photopolymerizes the liquid crystal material.</p> |
