| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a light irradiation device which is used for a laminating apparatus of a PSA system display panel, and capable of irradiating a sealing agent layer with light for curing with high light utilization efficiency and, for example, without making polymerization reaction of a photopolymerizable component contained in a liquid crystal material advance. <P>SOLUTION: The light irradiation device is used for the laminating apparatus of the display panel to laminate two translucent substrates, by irradiating the sealing agent layer with a light, in a state where a photopolymerizable material layer containing the photopolymerizable component, and the sealing agent layer surrounding the photopolymerizable material layer and comprising a photocuring type sealing agent in which a sensitivity wavelength range is at a wavelength side longer than that of the photopolymerizable component are formed between two translucent substrates. The light irradiation device has an LED element and a filter which shields light on a short-wavelength side which has a cut-off wavelength on the wavelength side shorter than an emission peak wavelength of the LED element, and on the wavelength side longer than the shortest wavelength of the emission spectrum of the LED element. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
